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“A Control Cable Free Play Setting Tool”

Abstract: A control cable free play setting tool comprising; a fixed part connected to a rigid/ reference part of a vehicle and a movable part connected to the control cable operating means and a measuring means to measure relative movement between the fixed part and the movable part, a display means to display the value of the relative movement and the measured relative movement is used for setting of desired free play of control cable. This tool is used for setting the free play of accelerator cable, clutch cable and brake cabe of the vehicle. [FIG. 5]

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Patent Information

Application #
Filing Date
11 November 2019
Publication Number
20/2021
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
prosecution@talwaradvocates.com
Parent Application

Applicants

Bajaj Auto Limited
Milind Joshi, Divisional Manager (R&D), Bajaj Auto Limited Mumbai-Pune Road, Akurdi, Pune 411035.India

Inventors

1. Rahul Sudhakar Potnis
Bajaj Auto Limited Mumbai-Pune Road, Akurdi, Pune 411035.India
2. Santosh Shantaram Dengle
Bajaj Auto Limited Mumbai-Pune Road, Akurdi, Pune 411035.India
3. Amol Chandrakant Hetiya
Bajaj Auto Limited Mumbai-Pune Road, Akurdi, Pune 411035.India
4. Prasad Madhusudan Kulkarni
Bajaj Auto Limited Mumbai-Pune Road, Akurdi, Pune 411035.India

Specification

DESC:A CONTROL CABLE FREE PLAY SETTING TOOL
FIELD OF INVENTON
The invention relates to a control cable free play setting tool used for setting of free play in the control cables during assembly operations. The invention is particularly related to an accelerator cable, brake cable and clutch cable free play setting system in saddle type vehicle and three wheeled vehicles having handle bar steering system.

BACKGROUND OF THE INVENTION
There are number of control cables used for controlling various functional devices. For example accelerator cable, brake cable and clutch cable etc. All these cables are used to transmit an actuation movement from actuator to the intended functional device. For example, an accelerator cable is used to transmit movement accelerator hand grip to carburetor slide. Another example is a brake cable is used to transmit actuation movement of brake lever or brake pedal to front or rear brake system. A clutch cable is used to transmit clutch actuation movement from clutch lever on handle bar to clutch actuation lever at the engine side.
Each control cable comprises inner cable and outer cable. Inner cable passes through outer cable. Length of inner cable is always more that the length of outer cable. Outer cable is fixed between two fixed parts of vehicle. One end of inner cable is movably connected to an actuator (for example clutch actuating lever on handle bar of vehicle). Other end of inner cable is movably connected to the intended function (for example clutch actuating lever at engine side). Relative movement between inner cable and outer cable transmits movement of one end of inner cable to the other end of inner cable. Hence actuation of cable is always referred to actuation inner cable.
All these cables should have a small free play exist in them for proper actuation of respective device. For example, the accelerator cable may have 2 to 3 millimeter axial free play. This means when the accelerator grip is rotated for actuation of accelerator inner cable, the accelerator inner cable should start its movement only after small rotation of accelerator grip which is equivalent or corresponds to 2 to 3 millimeter of accelerator cable linear movement. This avoids unintentional actuation of accelerator cable due to steering rotation of handle bar etc. This may lead to unsafe situation.
The free play for each type of cable is predetermined as per requirement and the free play is adjusted in the respective cable during assembly of the vehicle. Normally this free play adjustment is done manually. But there is variation in free play due to manual judgement. It will depend on the judgement of operator who adjusts the free play during assembly. It is observed that there is about 9 % rejection due to improper free play by manual operation. This reduces productivity.

OBJECT OF THE INVENTION
Hence, the object of the invention is to provide a free play setting system for vehicle assembly in which the free play in control cables is within limits and variation in free play is reduced.
Another object of the invention is to provide a free play setting system for control cables to increase the productivity of vehicle assembly and vehicle servicing.
Another object of the invention is to provide a free play setting system for control cables to reduce the rejection/complaints due to improper free pay setting.

SUMMARY OF INVENTION
With above objects in view, the present invention provides a control cable free play setting tool wherein the tool comprising;
A fixed part connected to a rigid/ reference part of a vehicle and
a movable part connected to a control cable operating means and
a measuring means to measure relative movement between the fixed part and the movable part and
the value of the measured relative movement is used for setting of desired free play of control cable.
Preferably a display means is provided to display the value of the relative movement between the fixed part and the movable part.
According to preferred embodiment of the present invention, an accelerator cable free play setting tool is provided wherein the tool comprises;
a fixed part (for example a housing of the tool) connected to a non-moving part of a vehicle (for example dead center on handle bar of a vehicle) with a fixing means (for example magnet) and
a movable part of tool (for example holding jaw) is connected to a moving part of vehicle (for example accelerator grip of the vehicle) with locking means (for example lock pin) and
a measuring means (for example an encoder) to measure relative angular movement between the non-movable part and the movable part of the vehicle and
a signal processing unit to convert the amount of angular movement into a linear distance and
a display means (for example display unit) may be provided to display the value of linear distance.
According to this embodiment, one end of accelerator inner cable is connected to throttle actuator at engine side of the vehicle (for example carburetor slide) through an adjuster nut and a lock nut.
Another end of accelerator inner cable is connected to a throttle actuator at handlebar side of the vehicle (for example an accelerator grip).
One end of accelerator outer cable is fixed to the fixed part of vehicle (for example engine). Another end of accelerator outer cable is fixed to the fixed part of vehicle (for example handler bar of the vehicle)
wherein;
after fixing the tool on vehicle ( as mentioned in previous paragraphs), the throttle actuator at handlebar side of the vehicle is rotated manually in the reverse direction of its operation to rest it at maximum free play position of the accelerator cable, the value of the linear distance displayed on the tool is reset to “zero”, the throttle actuator at handlebar side of the vehicle is rotated manually in its operating direction from “zero” point till the free play present in an accelerator cable becomes “zero” as sensed by the operator and the value of linear distance displayed on the display means is used for setting of desired free play of accelerator cable as per following conditions:
I. If the value of linear distance displayed is within set desired limit (for example 2 to 3 mm), then it is concluded that the free play of accelerator cable is correct and no adjustment is required, then the adjuster nut is locked in this position with the help of the lock nut;
II. If the value of linear distance displayed is less than the desired set limit (for example less than 2 mm), then the adjuster nut of the accelerator cable is loosened till the value displayed is within the desired limit, The adjuster nut is locked in this position with the help of the lock nut;
III. If the value of linear distance displayed is more than the desired set limit (for example more than 3 mm), then adjuster nut of the accelerator cable is tightened till the value displayed is within the desired limit, the adjuster nut is locked in this position with the help of the lock nut.
A method of setting of accelerator cable free play with the help of above mentioned tool comprised steps as;
a. Mounting of a fixed part of the accelerator cable free pay setting tool (for example a housing of the tool) on a non-moving part of a vehicle (for example dead center on handle bar of a vehicle) with a fixing means (for example magnet),
b. Mounting of a movable part of the tool (for example holding jaw) on a moving part of vehicle (for example accelerator grip of the vehicle) with locking means (for example lock pin),
c. Connecting one end of accelerator inner cable to throttle actuator at engine side of the vehicle (for example carburetor slide) through an adjuster nutand lock nut.
d. Connecting another end of accelerator inner cable to a throttle actuator at handlebar side of the vehicle (for example an accelerator grip).
e. Fixing one end of accelerator outer cable to fixed part of vehicle (for example engine)..
f. Fixing another end of accelerator outer cable on the fixed part of vehicle (for example handler bar of the vehicle),
g. Manually rotating the movable part of the vehicle in the reverse direction of its operation to rest it at maximum free play position of accelerator cable,
h. Resetting of the value of linear distance on the display of tool to “zero”,
i. Manually rotating the throttle actuator at handlebar side of the vehicle in its operating direction till the free play present in an accelerator grip becomes zero as sensed by the operator,
j. Measuring of relative angular movement from “Zero” point between the fixed part and movable part of the tool by measuring means,
k. Processing of the measured angular movement in the signal processing unit, converting the measured angular movement into linear movement and displaying the value of linear movement on the display means of this tool,
l. Setting of desired free play of accelerator cable as per following conditions.
I. If the value of linear movement displayed is within set desired limit (for example 2 to 3 mm), then it is concluded that the free play of accelerator cable is correct and no adjustment is required, then the adjuster nut is locked in this position with the help of the lock nut;
II. If the value of linear movement displayed is less than the desired set limit (for example less than 2 mm), then the adjuster nut of the accelerator cable is loosened till the value displayed is within the desired limit, The adjuster nut is locked in this position with the help of the lock nut;
III. If the value of linear movement displayed is more than the desired set limit (for example more than 3 mm), then adjuster nut of the accelerator cable is tightened till the value displayed is within the desired limit, The adjuster nut is locked in this position with the help of the lock nut.
According to another embodiment of the present invention, a clutch cable free play setting tool is provided wherein the tool comprises;
a fixed part of the tool (for example a housing of the said tool) connected to a non-moving part of a vehicle (for example left side handle bar grip of a vehicle) with a clamping means (for example tool clamping mechanism) and locked with the help of a locking means (for example lock pin) and
a movable part of the tool (for example stopper plate) connected to the movable part of the vehicle (for example clutch actuating lever on handle bar of the vehicle) and
a linear movement means (for example lead screw) actuated by a linear movement actuating means (for example motor) to move the movable part of the tool for actuating the movable part of the vehicle.
a measuring means (for example load sensor) to measure a force exerted on the movable part of vehicle when the movable part of the vehicle is actuated by the tool and
a display means (for example display unit) to display the measured value of force exerted on the movable part of the vehicle.
According to this embodiment, one end of clutch inner cable is connected to clutch actuator lever at engine side of the vehicle through an adjuster nut and a lock nut. Another end of clutch inner cable is connected to a clutch actuating lever at the handle bar of the vehicle.
One end of the clutch outer cable fixed on the fixed part vehicle (for example engine). Another end of the clutch outer cable is fixed on the fixed part of vehicle (for example clutch actuating lever of handle bar of the vehicle).
The measuring means is connected between a movable part of vehicle and a movable part of the tool.
wherein;
the clutch actuating lever on handle bar of the vehicle is operated by the linear movement actuating means through the linear movement means for a pre-determined linear movement (for example 7 mm which is corresponding to desired free play of clutch cable) and the value of the measured force exerted on the clutch actuating lever on the handle bar is displayed on the display means. The value of measured force is used for setting of desired free play of clutch cable as per following conditions.
I. If the force value is within set desired limit (for example 16 to 20 Newton) then it is concluded that the free play of clutch cable is correct and no adjustment is required. Then, the adjuster nut is locked in this position by lock nut to ensure no further movement of the adjuster nut;
II. If the force value displayed is more than the desired set limit (for example more than 20 Newton), then it is concluded that the free play of clutch cable is less that desired limit. Then, the adjuster nut of the clutch cable is loosened till the force value displayed is within the desired limit. The adjuster nut is locked in this position by the lock nut.
III. If the force value is less than the desired set limit (for example less than 16 Newton), then it is concluded that the free play of clutch cable is more than desired limit. Then, the adjuster nut of the clutch cable is tightened till the force value displayed is within the desired limit. The adjuster nut is locked in this position by the lock nut.
A method of setting of clutch cable free play with the help of above mentioned tool comprised steps as;
a. Mounting of the fixed part of the accelerator cable free pay setting tool on the non-moving part of the vehicle,
b. Mounting of the movable part of the accelerator cable free pay setting tool on the movable part of the vehicle,
c. Connecting one end of the clutch inner cable to the clutch actuator lever at engine side of the vehicle,
d. Connecting another end of the clutch inner cable to the clutch actuating lever at handle bar of the vehicle,
e. Fixing one end of clutch outer cable on the fixed part vehicle (for example engine),
f. Fixing another end of the clutch outer cable on the fixed part of vehicle (for example clutch actuating lever of handle bar of the vehicle),
g. Connecting the measuring means between the movable part of vehicle and the movable part of the tool,
h. Operating the clutch actuating lever on handle bar of the by the linear movement actuating means through the linear movement means for a pre-determined linear movement (for example 7 mm which is corresponding to desired free play of clutch cable) ,
i. Displaying the value of the measured force exerted on the clutch actuating lever on the handle bar on the display means,
j. Using the value of measured force for setting of desired free play of clutch cable as per following conditions:
I. If the force value is within set desired limit (for example 16 to 20 Newton) then it is concluded that the free play of clutch cable is correct and no adjustment is required. Then, the adjuster nut is locked in this position by the lock nut to ensure no further movement of the adjuster nut;
II. If the force value displayed is more than the desired set limit (for example more than 20 Newton), then it is concluded that the free play of clutch cable is less that desired limit. Then, the adjuster nut of the clutch cable is loosened till the force value displayed is within the desired limit. The adjuster nut is locked in this position by the lock nut;
III. If the force value is less than the desired set limit (for example less than 16 Newton), then it is concluded that the free play of clutch cable is more than desired limit. Then, the adjuster nut of the clutch cable is tightened till the force value displayed is within the desired limit. The adjuster nut is locked in this position by the lock nut.

BREIF DESCRIPTON OF DRAWINGS:
The foregoing and other features and advantages of the invention will be more fully understood from the following description made with reference to the drawings.

FIG.1 is a pictorial view of the accelerator cable free play setting tool according to one embodiment of the present invention;
FIG. 2 is a cross section view of the accelerator cable free play setting tool mounted on the handle bar of the vehicle according to one embodiment of the present invention.
FIG. 3 and 3a are details of the accelerator cable free play adjustment according to one embodiment of the present invention;
FIG. 4 is a pictorial view of the clutch cable free play setting tool according to another embodiment of the present invention;
FIG. 5 is a pictorial view of clutch cable free play setting tool mounted on the handle bar of the vehicle according to another embodiment of the present invention;
FIG. 6 is an exploded view of the clutch cable free play setting tool according to another embodiment of the present invention;
FIG.7 is details of clutch cable free play adjustment according to another embodiment of the present invention;
FIG.8 is a pictorial view of front brake cable free play setting tool mounted on the handle bar of the vehicle according to another embodiment of the present invention; and
FIG.9 is a pictorial view of front brake cable free play setting at front wheel of the vehicle according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION:
Aspects of the present invention are best understood by reference to the description set forth herein. All the aspects described herein will be better appreciated and understood when considered in conjunction with the following description. It should be understood, however, that the following description, while indicating preferred aspects and numerous specific details thereof, are given by way of illustration only and should not be treated as limitations. Changes and modifications may be made within the scope herein without departing from the spirit and scope thereof, and the present invention herein includes all such modifications.
Several aspects of the present invention are disclosed herein. It is to be understood that these aspects may or may not overlap with one another. Thus, part of one aspect may fall within the scope of another aspect, and vice versa. Each aspect is illustrated by a number of embodiments, each of which in turn, can include one or more specific embodiments. It is to be understood that the embodiments may or may not overlap with each other. Thus, part of one embodiment, or specific embodiments thereof, may or may not fall within the ambit of another, or specific embodiments thereof, and vice versa.

The description of the accelerator cable free play setting tool (10) according to one embodiment of the present invention is explained with the help of FIG.1 to 3a. An accelerator cable free play setting tool (10) comprise;
a fixed part (for example a housing(11) of the said tool) connected to a non-moving part of a vehicle (for example dead center (12) on handle bar (13) of a vehicle) with a fixing means (for example magnet (15)) and
a movable part of tool (for example holding jaw (16)) is connected to a moving part of vehicle (for example accelerator grip (19) of the vehicle) with locking means (for example lock pin (17)) and
a measuring means (for example an encoder (20)) to measure relative angular movement between the non-movable part of the vehicle and the movable part of the vehicle and
a signal processing unit (18) to convert the said amount of angular movement into a linear distance and
a display means (for example display unit (21)) to display the said value of linear distance.
An accelerator cable (22) comprises accelerator inner cable (22a) and accelerator outer cable (22b).
According to this embodiment, one end of accelerator inner cable (22a) is connected to throttle actuator at engine side of the vehicle (for example carburetor slide (26a)) through an adjuster nut (23) and lock nut (24).
Another end of accelerator inner cable (22a) is connected to a throttle actuator at handlebar side of the vehicle (for example an accelerator grip (19)) through an adjuster nut (23) and lock nut (24).
One end of accelerator outer cable (22b) is fixed to the fixed part of vehicle (for example carburetor (26)).
Another end of accelerator outer cable is fixed to the fixed part of vehicle (for example handler bar (13) of the vehicle)
After fixing the tool on vehicle ( as mentioned in previous paragraphs), the accelerator grip (19) is rotated manually in the reverse direction of its operation to rest it at maximum free play position of accelerator cable (22), the value of the linear distance displayed on the display unit (21) is reset to “zero”, the accelerator grip (19) is rotated manually from “zero point” in its operating direction till the free play present in an accelerator cable (22) becomes “zero” as sensed by the operator and the value of linear distance displayed on the display unit (21) is used for setting of desired free play of accelerator cable (22) as per following conditions.
I. If the value of linear distance displayed is within set desired limit (for example 2 to 3 mm), then it is concluded that the free play of accelerator cable (22) is correct and no adjustment is required, then the adjuster nut (23) is locked in this position with the help of lock nut (24).
II. If the value of linear distance displayed is less than the desired set limit (for example less than 2 mm), then the adjuster nut (23) of the accelerator cable at engine side or at handle bar side is loosened till the value displayed is within the desired limit, The adjuster nut (23) is locked in this position with the help of lock nut (24).
III. if the value of linear distance displayed is more than the desired set limit (for example more than 3 mm), then adjuster nut (23) of the accelerator cable at engine side or at handle bar side is tightened till the value displayed is within the desired limit, The adjuster nut (23) is locked in this position with the help of lock nut (24).
The description of the clutch free play setting tool according to another embodiment of the present invention is explained with the help of FIG.4 to 7.
A clutch cable free play setting tool (100) comprises;
a fixed part of the tool (for example a housing (112) of the said tool is connected to a non-moving part of a vehicle (for example left side handle bar grip (103) of a vehicle) with a clamping means (for example tool clamping mechanism (102)) and locked with the help of locking means (for example lock pin (109)) and
a movable part of the tool (for example stopper plate (110)) is connected to the movable part of the vehicle (for example clutch actuating lever (111) on handle bar of the vehicle) and
a linear movement means (for example lead screw (104)) which is actuated by a linear movement actuating means (for example motor (106)) to move the movable part of the tool for actuating the movable part of the vehicle.
a measuring means (for example load sensor (105)) to measure a force exerted on movable part of vehicle when the movable part of the vehicle is actuated by the tool and
a display means (for example display unit (108)) to display the measured value of force exerted on movable part of the vehicle.
A clutch cable (122) comprises clutch inner cable (122a) and clutch outer cable (122b).
According to this embodiment, one end of clutch inner cable (122a) is connected to clutch actuator lever (125) at engine (126) side of the vehicle through an adjuster nut (123) and lock nut (124). Another end of clutch inner cable (122b) is connected to a clutch actuating lever (111) at handle bar (101) of the vehicle through an adjuster nut (123) and lock nut (124).
One end of clutch outer cable (122b) is fixed on fixed part vehicle (for example engine (126)). Another end of clutch outer cable (122b) is fixed to fixed part of vehicle (for example clutch actuating lever (111) of handle bar (101) of the vehicle).
The load sensor (105) is connected between a movable part of vehicle and movable part of the tool.
The clutch lever (111) on handle bar of the vehicle is operated by the lead screw (104) through the motor (106) for a pre-determined linear movement (for example 7 mm which is corresponding to desired free play of clutch cable) and the value of said measured force exerted on the clutch lever (111) on the handle bar is displayed on the display unit (108) of the tool. The value of measured force is used for setting of desired free play of clutch cable (122) as per following conditions.
I. If the force value is within set desired limit (for example 16 to 20 Newton) then it is concluded that the free play of clutch cable (122) is correct and no adjustment is required. Then the adjuster nut (123) is locked in this position by lock nut (124) to ensure no further movement of adjuster nut (123).
II. If the force value displayed is more than the desired set limit (for example more than 20 Newton), then it is concluded that the free play of clutch cable (122) is less that desired limit. Then the adjuster nut (123) of the clutch cable at engine side or at handle bar side is loosened till the force value displayed is within the desired limit. The adjuster nut (123) is locked in this position by lock nut (124).
III. If the force value is less than the desired set limit (for example less than 16 Newton), then it is concluded that the free play of clutch cable (122) is more than desired limit. Then adjuster nut (123) of the clutch cable at engine side or at handle bar side is tightened till the force value displayed is within the desired limit. The adjuster nut (123) is locked in this position by lock nut (124).
The force value displayed on display unit (108) for above three conditions may be correlated by three different indicators. (For example green colour indicator bulb will lit for 1st condition of correct free play, red colour indicator bulb will lit for 2nd condition of less free play and yellow colour indicator bulb will lit for 3rd condition of more free play in the clutch cable.) Operator will easily understand the colour indicators and act accordingly to set free play.
A similar tool for setting of free play in front brake cable (132) is designed as per another embodiment of the present invention. Refer FIG. 8 and 9 for details. A front brake free play setting tool (200) is mounted on accelerator grip 131 at right side of handle bar of the vehicle. One end of front brake cable (132) is connected to front brake lever (130) on handle bar of vehicle. Another end of front brake cable (132) is connected to front brake actuating lever (134) at front wheel (135) of the vehicle. A force exerted on front brake lever (130) is displayed on display unit (136) of the front brake setting tool (200). This force value is used for setting of free play in the front brake cable (132) with adjuster nut (137). The method of free play setting is similar to the method of setting of free play in clutch cable as described in above embodiment.
The above embodiments of the invention are described for setting method for free play of the accelerator cable, clutch cable and front brake cable. Similar tool may be used for setting of free play of rear brake cable, gear shift cable and chain slackness etc.
Although the invention has been described with regard to its embodiments, specific embodiments, and various examples, which constitute the best mode presently known to the inventors, it should be understood that various changes and modifications as would be obvious to one having the ordinary skill in this art may be made without departing from the scope of the invention. The scope of the claims should not be limited by the preferred embodiments set forth in the examples, but should be given the broadest interpretation consistent with the description as a whole. All changes that come with meaning and range of equivalency of the claims are to be embraced within their scope.
,CLAIMS:CLAIMS:
We claim:
1. A control cable free play setting tool (10) ,wherein the tool comprising; a fixed part (11), a movable part (16), a measuring means (20), wherein
the fixed part (11) is connected to a rigid/ reference part (12) of a vehicle and the movable part (16) is connected to a control cable operating means and
the measuring means (20) measures relative movement between the fixed part (11) and the movable part (16) and value of the relative movement is used for setting of desired free play of a control cable (22).

2. The control cable free play setting tool (10) as claimed in claim 1, comprising a display means (21) to display the value of the relative movement between the fixed part (11) and the movable part (16).

3. The control cable free play setting tool (10) as claimed in claim 1, wherein the control cable is an accelerator cable and an accelerator cable free play setting tool comprises; a fixed part (11), a movable part (16), a fixing means (15), a locking means (17), a measuring means (20), a signal processing means (18) and a display means (21); and wherein,
the fixed part (11) is connected to a non-moving part (12) of a vehicle with the fixing means (15) and the movable part (16) of tool is connected to a moving part (19) of the vehicle with the locking means (17), and the measuring means (20) measures relative angular movement between the non-movable part (12) of the vehicle and the movable part (16) of the vehicle and the signal processing means (18) converts the amount of angular movement into a linear distance and the display means (21) displays the value of linear distance; the linear distance is used for setting of desired free play of accelerator cable.

4. The accelerator cable free play setting tool (10) as claimed in claim 3, wherein the fixed part is a housing (11), the movable part is a holding jaw (16), the fixing means is a magnet (15), the locking means is a lock pin (17), the measuring means is a encoder (20), the signal processing means is a signal processing unit (18) and the display means is a display unit (21) ; and wherein,
the housing (11) is connected to dead center (12) of a vehicle with the magnet (15) and the holding jaw (16) of the tool is connected to a accelerator grip (19) of the vehicle with the lock pin (17) , and the encoder (20) measures relative angular movement between the housing (11) of the vehicle and the accelerator grip (19) of the vehicle and the signal processing unit (18) converts the amount of angular movement into a linear distance and the display unit (21) displays the value of the linear distance; the linear distance is used for setting of desired free play of the accelerator cable.

5. The accelerator cable free play setting tool (10) as claimed in claim 4,wherein one end of an accelerator inner cable (22a) is connected to carburetor slide (26a) at engine side of the vehicle through an adjuster nut (23) and a lock nut (24); and another end of the accelerator inner cable (22a) is connected to the accelerator grip (19) at handlebar side of the vehicle;
and one end of accelerator outer cable (22b) is fixed to the carburetor (26) and another end of accelerator outer cable (22b) is fixed to a handle bar (13) of vehicle , wherein
the tool (10) is fixed on the vehicle and the accelerator grip (19) at handlebar side of the vehicle is rotated manually in the reverse direction of its operation to rest it at maximum free play position of an accelerator cable (22), the value of the linear distance displayed on the display unit (21) is reset to “zero”, the accelerator grip (19) at handlebar side of the vehicle is rotated manually in its operating direction from “zero” point till the free play present in an accelerator cable (22) becomes “zero” as sensed by the operator and the value of linear distance displayed on the display means (21) is used for setting of desired free play of accelerator cable as per following conditions;
I. If the value of the linear distance displayed is within set desired limit, no adjustment is done , the adjuster nut (23) is locked in this position with the help of the lock nut (24);
II. If the value of the linear distance displayed is less than the desired set limit, the adjuster nut (23) of the accelerator cable (22) is loosened till the value displayed is within the desired limit, the adjuster nut (23) is locked in this position with the help of the lock nut (23);
III. If the value of the linear distance displayed is more than the desired set limit, the adjuster nut (23) of the accelerator cable (22) is tightened till the value displayed is within the desired limit, the adjuster nut (23) is locked in this position with the help of the lock nut (24).

6. A method of setting of an accelerator cable free play with an accelerator cable free play setting tool (10) comprised steps as;
a. Mounting of a housing (11) of the accelerator cable free pay setting tool (10) on a dead center (12) of handle bar of a vehicle with a magnet (15) and mounting of a holding jaw (16) of the tool (10) on an accelerator grip (19) of vehicle with a lock pin (17);
b. Connecting one end of an accelerator inner cable (22a) to a carburetor slide (26a) at engine side of the vehicle through an adjuster nut (23)and a lock nut (24) and connecting another end of accelerator inner cable (22) to a throttle actuator (19) at handlebar side of the vehicle and fixing one end of accelerator outer cable (22b) to the carburetor (26) and fixing another end of the accelerator outer cable (22b) on the handle bar (13) of vehicle,
c. Manually rotating the accelerator grip (19) of the vehicle in the reverse direction of its operation to rest it at maximum free play position of the accelerator cable (22) and resetting of the value of linear distance on a display (21) of tool to “zero”, again manually rotating the accelerator grip (19) in its operating direction till the free play present in the accelerator grip (19) becomes zero as sensed by the operator,
d. Measuring of relative angular movement from “Zero” point between the housing (11) and the holding jaw (16) of the tool (10) by an encoder (20) and processing of the measured angular movement in a signal processing unit (18), converting the measured angular movement into linear movement and displaying the value of linear movement on the display unit (21) of the tool (10),
e. Setting of desired free play of accelerator cable as per following conditions;
I. If the value of linear movement displayed is within set desired limit, no adjustment is required, the adjuster nut (23) is locked in this position with the help of the lock nut (24);
II. If the value of the linear movement displayed is less than the desired set limit, the adjuster nut (23) of the accelerator cable (22) is loosened till the value displayed is within the desired limit, the adjuster nut (23) is locked in this position with the help of lock nut (24);
III. If the value of the linear movement displayed is more than the desired set limit, the adjuster nut (23) of the accelerator cable (22) is tightened till the value displayed is within the desired limit, the adjuster nut (23) is locked in this position with the help of lock nut (24).

7. The control cable free play setting tool (10) as claimed in claim 1, wherein the control cable is a clutch cable or a brake cable; wherein the tool (100) comprises; a fixed part (112), a movable part (110), a linear movement means (104), a linear movement actuating means (106), a measuring means (105) and a display means (108) and wherein;
the fixed part (112) of the tool is connected to a non-moving part (103) of a vehicle with a clamping means (102) and locked with the help of locking means (109) and
the movable part (110) of the tool is connected to the movable part (111) of the vehicle and
a linear movement means (104) is actuated by a linear movement actuating means (106) to move the movable part (110) of the tool for actuating the movable part (111) of the vehicle;
a measuring means (105) measures a force exerted on movable part (111) of the vehicle when the movable part of the vehicle is actuated by the tool (100) and
a display means (108) displays the measured value of force exerted on the movable part (111) of the vehicle and the value of the force is used for setting of desired free play of control cable.

8. The control cable free play setting tool as claimed in claim 7, wherein the fixed part is housing (112), the movable part is a stopper plate (110), the linear movement means is a lead screw (104), the linear movement actuating means is a motor (106), the measuring means is a measuring unit (105) and the display means is a display unit (108) and wherein;
the housing (112) of the tool is connected to a handle bar grip (103) of a vehicle with a clamping mechanism (102) and locked with the help of lock pin (109) and the stopper plate (110) of the tool is connected to the clutch actuating lever (111) of the vehicle and the lead screw (104) is actuated by the motor (106) to move the stopper plate (110) of the tool for actuating the clutch actuating lever (111) of the vehicle; and the measuring unit (105) measures a force exerted on the clutch actuating lever (111) of vehicle when the clutch actuating lever of the vehicle is actuated by the tool (100) and the display unit (108) displays the measured value of force exerted on the clutch actuating lever (111) of the vehicle and the value of the force is used for setting of desired free play of control cable.

9. The control cable free play setting tool (100) as claimed in claim 8, wherein one end of clutch inner cable (122a) is connected to the clutch actuator lever (125) at an engine (126) side of the vehicle through the adjuster nut (123) and the lock nut (124) and another end of clutch inner cable (122a) is connected to the clutch actuating lever (111) at the handle bar (101) of the vehicle and one end of clutch outer cable (122b) is fixed on the engine (126) and another end of clutch outer cable (122b) is fixed on handle bar of vehicle (103) and the measuring unit (105) is connected between the clutch actuating lever (111) of vehicle and the stopper plate (110) of the tool (100) and wherein;
the clutch actuating lever (111) of the vehicle is operated by the motor (106) through the lead screw (104) for a pre-determined linear movement and the value of the measured force exerted on the clutch actuating lever (111) is displayed on the display unit (108) and the value of measured force is used for setting of desired free play of the clutch cable (122) as per following conditions
I. If the force value is within set desired limit, no adjustment is required, the adjuster nut (123) is locked in this position by the lock nut (124) to ensure no further movement of adjuster nut;
II. If the force value displayed is more than the set desired limit, the free play of the clutch cable (122) is less that desired limit; the adjuster nut (123) of the clutch cable is loosened till the force value displayed is within the desired limit. The adjuster nut (123) is locked in this position by the lock nut (124);
III. If the force value is less than the desired set limit, the free play of the clutch cable (122) is more than desired limit; the adjuster nut (123) of the clutch cable is tightened till the force value displayed is within the desired limit. The adjuster nut (123) is locked in this position by the lock nut (124).

10. A method of setting of control cable free play with the control cable free play setting tool (100) comprised steps as;
a. Mounting of the housing (112) of the tool on the handle bar (103) of the vehicle and mounting of the stopper plate (110) of the tool on the clutch actuating lever (111) of the vehicle;
b. Connecting one end of clutch inner cable (122a) to the clutch actuator lever (125) at engine side of the vehicle and connecting another end of the clutch inner cable (122a) to the clutch actuating lever (111) at the handle bar (101) of the vehicle and fixing one end of the clutch outer cable (122b) on the handle bar (103) of vehicle and fixing another end of the clutch outer cable (126b) on the engine (126) of vehicle;
c. Connecting the measuring unit (105) between the clutch actuating lever (111) of vehicle and the stopper plate (110) of the tool;
d. Operating the clutch actuating lever (111) on the handle bar (103) by the motor (106) through the screw (104) for a pre-determined linear movement;
e. Displaying the value of the measured force exerted on the clutch actuating lever (111) on the handle bar on the display unit (108);
f. Using the value of the measured force for setting of desired free play of clutch cable (122) as per following conditions.
I. If the force value is within set desired limit, no adjustment is required; the adjuster nut (123) is locked in this position by the lock nut (124) to ensure no further movement of the adjuster nut (123);
II. If the force value displayed is more than the set desired limit; the adjuster nut (123) of the clutch cable (122) is loosened till the force value displayed is within the desired limit; the adjuster nut (123) is locked in this position by the lock nut (124);
III. If the force value is less than the desired set limit; the adjuster nut (123) of the clutch cable (122) is tightened till the force value displayed is within the desired limit; the adjuster nut (123) is locked in this position by the lock nut (124).

Documents

Application Documents

# Name Date
1 201921045778-STATEMENT OF UNDERTAKING (FORM 3) [11-11-2019(online)].pdf 2019-11-11
1 Abstract1.jpg 2021-10-19
2 201921045778-PROVISIONAL SPECIFICATION [11-11-2019(online)].pdf 2019-11-11
2 201921045778-ENDORSEMENT BY INVENTORS [10-11-2020(online)].pdf 2020-11-10
3 201921045778-PROOF OF RIGHT [11-11-2019(online)].pdf 2019-11-11
3 201921045778-FORM 3 [10-11-2020(online)].pdf 2020-11-10
4 201921045778-COMPLETE SPECIFICATION [06-11-2020(online)].pdf 2020-11-06
4 201921045778-POWER OF AUTHORITY [11-11-2019(online)].pdf 2019-11-11
5 201921045778-FORM 1 [11-11-2019(online)].pdf 2019-11-11
5 201921045778-DRAWING [06-11-2020(online)].pdf 2020-11-06
6 201921045778-FORM 13 [06-11-2020(online)].pdf 2020-11-06
6 201921045778-DRAWINGS [11-11-2019(online)].pdf 2019-11-11
7 201921045778-RELEVANT DOCUMENTS [06-11-2020(online)].pdf 2020-11-06
7 201921045778-DECLARATION OF INVENTORSHIP (FORM 5) [11-11-2019(online)].pdf 2019-11-11
8 201921045778-RELEVANT DOCUMENTS [06-11-2020(online)].pdf 2020-11-06
8 201921045778-DECLARATION OF INVENTORSHIP (FORM 5) [11-11-2019(online)].pdf 2019-11-11
9 201921045778-FORM 13 [06-11-2020(online)].pdf 2020-11-06
9 201921045778-DRAWINGS [11-11-2019(online)].pdf 2019-11-11
10 201921045778-DRAWING [06-11-2020(online)].pdf 2020-11-06
10 201921045778-FORM 1 [11-11-2019(online)].pdf 2019-11-11
11 201921045778-COMPLETE SPECIFICATION [06-11-2020(online)].pdf 2020-11-06
11 201921045778-POWER OF AUTHORITY [11-11-2019(online)].pdf 2019-11-11
12 201921045778-PROOF OF RIGHT [11-11-2019(online)].pdf 2019-11-11
12 201921045778-FORM 3 [10-11-2020(online)].pdf 2020-11-10
13 201921045778-PROVISIONAL SPECIFICATION [11-11-2019(online)].pdf 2019-11-11
13 201921045778-ENDORSEMENT BY INVENTORS [10-11-2020(online)].pdf 2020-11-10
14 Abstract1.jpg 2021-10-19
14 201921045778-STATEMENT OF UNDERTAKING (FORM 3) [11-11-2019(online)].pdf 2019-11-11