Description:TECHNICAL FIELD
The embodiments of the present disclosure relate generally to a device for measuring the slack of a chain, and particularly to measure the amount of slack of a motorcycle drive chain.
BACKGROUND

In the field of the automobile industry, a drive chain is an essential part of the motorcycle that transmits power from an engine or a powertrain of a motorcycle to a rear wheel through one or more drive sprockets, thus propelling the motorcycle. The transmitting element can be a chain or a belt. When this transmitting element runs in severe environments, such as but not limited to, on rainy days riding the vehicle on wet surfaces, being ridden hard, or off-road riding, the transmitting element gets affected due to impact, vibrations, sand, dust, and similar dirt particles. Due to these severe influences, the transmitting element either becomes overtight or becomes very loose and results in slackness. Therefore, when the transmitting element becomes overtight due to the presence of sand, mud, and like so element, the transmitting element exerts unbearable noise which makes uncomfortable for the rider while riding the motorcycle. Moreover, due to the over-tightness, the suspension may not remain smooth, and the transmitting element may strain to end up providing overload to the bearings of the wheel. On the other hand, when the transmitting element loosens up much and gets slacked maybe due to worn out of the transmitting element, the transmitting element may jump off from the sprocket or may start rubbing off to the surrounding elements and create uncomfortable noise.
In order to overcome this problem, the motorcycle manufacturing company recommends that the slackness of the transmitting element should be inspected periodically. On the other hand, the motorcycle manufacturing company also provides a recommended range of height of the transmitting element from a connecting element, like a swing arm that connects the wheel to the main frame of the motorcycle. The motorcycle manufacturing company recommends the range of height that is supposed to be maintained so that the power transmission performance and the transmission stability are maintained.
Aiming to maintain the slackness of the transmitting element in the recommended range, a number of measuring tools exist in the market. One can gauge the measurement using the existing tools easily and if required can adjust the transmitting element.
PROBLEM TO BE SOLVED BY INVENTION
However, the problem that exists with the known prior arts is that these slackness measurement tools remain as a separate tool that has to be carried with the motorcycle separately. Thus, carrying the measurement tool blocks additional space in the motorcycle.
Hence, it is a primary objective of the current invention to solve the technical problem of providing a measurement tool that can be refrained from carrying the tool separately.
It is yet another objective of the current invention to provide an easy and convenient method and device for measuring the slackness of the transmitting element.
BRIEF DESCRIPTION OF THE INVENTION
As per the current invention, the disclosure provides a method for measuring slackness of a power transmission element in a two-wheeler vehicle. The method comprises placing a tip of a key of the two-wheeler vehicle on the bottom side of a connecting member, the connecting member connects a wheel of the two-wheeler vehicle with a main frame (205) of the two-wheeler vehicle. Subsequently, extending the power transmission element of the two-wheeler vehicle at a maximum distance away from the connecting member. Thereafter, measuring a distance of the extended power transmission element from one or more marks present on the key of the two-wheeler vehicle, the one or more marks represent the minimum and maximum range of the slackness. Further, determining the slackness of the power transmission element based on the measured distance of the extended power transmission element.
As per the first embodiment of the current invention, the determination of slackness of the power transmission element further comprises of determining that the power transmission element is slacked or overtight if the power transmission element falls outside of a range provided between one or more marks representing the minimum and maximum slackness while measuring the distance of the power transmission element.
As per the second embodiment of the current invention, the determination of the slackness of the power transmission element further comprises of determining that the power transmission element neither slacked nor overtight if the power transmission element falls in between the range provided between one or more marks representing the minimum and maximum slackness while measuring the distance of the power transmission element.
As per another feature of the current invention, the disclosure provides a system for measuring slackness of a power transmission element in a two-wheeler vehicle. The system comprises of a key of the two-wheeler vehicle configured to be placed on the bottom side of a connecting member. The key comprises one or more marks representing a minimum and maximum range of slackness. The system further includes the connecting member for connecting a wheel of the two-wheeler vehicle with a main frame of the two-wheeler vehicle. A power transmission element of the two-wheeler vehicle for transmitting rotational motion of the two-wheeler vehicle. Moreover, the power transmission element is extended at a maximum distance away from the connecting member and the distance between the power transmission element from one or more marks of the key is measured. Further, the slackness of the power transmission element is determined based on the distance of the power transmission element measured.
As per the third embodiment of the current invention, the power transmission element may be a chain or a belt.
As per the fourth embodiment of the current invention, the one or more marks on the key are provided at a predetermined distance.
As per the fifth embodiment of the current invention, the one or more marks may be scribble marks, grooves, scratch marks, engrossed marks, or engraved marks present on a cover of the key.
As per the sixth embodiment of the current invention, the said connecting member is a swing arm.
As per the seventh embodiment of the current invention, the total length of the cover of the key may be represented as one or more marks for measuring the minimum and maximum range of slackness.
LIST OF FIGURES
The disclosure will be described and explained with additional specificity and detail with the accompanying figures in which:
FIGURE 1 is a top view of a vehicle key as per the current invention.
FIGURE 2 is a perspective view of the connecting member with the power transmission element and key as per the current invention.
FIGURE 3 is a schematic illustration of the method as per the current invention.
FIGURE 4 is a top view of a vehicle key as per another embodiment of the current invention.
Further, those skilled in the art will appreciate that elements in the figures are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the figures by conventional symbols, and the figures may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the figures with details that will be readily apparent to those skilled in the art having the benefit of the description herein.
DETAILED DESCRIPTION OF THE INVENTION
For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the figures and specific language will be used to describe them. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended. Such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as would normally occur to those skilled in the art are to be construed as being within the scope of the present invention.
It will be understood by those skilled in the art that the foregoing general description and the following detailed description are exemplary and explanatory of the invention and are not intended to be restrictive thereof.
The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps but may include other steps not expressly listed or inherent to such a process or method. Similarly, one or more devices or sub-systems or elements or structures or components preceded by "comprises... a" does not, without more constraints, preclude the existence of other devices, sub-systems, elements, structures, components, members, additional devices, additional sub-systems, additional elements, additional structures or additional components. Appearances of the phrase "in an embodiment", "in another embodiment" and similar language throughout this specification may, but not necessarily do, all refer to the same embodiment.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention belongs. The system, methods, and examples provided herein are only illustrative and not intended to be limiting.
Embodiments of the present invention will be described below in detail with reference to the accompanying figures.
FIGURE 1 illustrates a Vehicle Key (10) according to an embodiment of the current invention. The vehicle key (10) as illustrated in the figure includes a metal portion (105) and a rubber/plastic cover (104). The rubber/plastic cover (104) of the key (10) further comprises one or more marks for representing minimum (101) range of slackness and maximum (102) range of slackness. Moreover, between the minimum (101) and maximum (102) marks point lies a range (103) that includes a plurality of measurement scale that determines the actual distance of the particular mark from the tip (106) point of the key (10).
FIGURE 2 illustrates a system (20) for measuring slackness of a power transmission element (203) according to an embodiment of the current invention. The figure illustrates a power transmission element (203) that transmits power from a front sprocket (201) to a rear sprocket (202). The front sprocket (201) may be connected to a transmission-generating element, a motor. The system (20) also comprises a connecting member (204) connecting the rear sprocket (202) to the main frame (205) of the vehicle. Therefore, the system (20) illustrates that when the tip (106) of the key (10) is placed on the bottom side of the connecting member (204) and the power transmitting element passes through the provided range of one or more marks then the slackness of the power transmitting element is measured easily. Moreover, with the obtained measurements it can be easily determined whether the power transmitting element is slacked or not.
FIGURE 3 is a schematic illustration of a method (30) as per one of the embodiments of the current invention. The figure illustrates a method (30) of measuring slackness of a power transmission element (203) in a two-wheeler vehicle. Initially, a tip (106) of a key (10) of the two-wheeler vehicle is placed (301) on the bottom of a connecting member (204). The key (10) may be an ignition key (10) of the two-wheeler vehicle. The said connecting member (204) connects a wheel of the two-wheeler vehicle with a main frame (205) of the two-wheeler vehicle. Mostly, the connecting member (204) is connected with the rear wheel of the two-wheeler vehicle and holds the rear wheel firmly with the main frame (205) of the two-wheeler vehicle. Subsequently, the power transmission element (203) of the two-wheeler element is extended (302) at a distance away from the connecting member (204). The power transmission element (203) is extended in an opposite direction away from the connecting member (204). Moreover, the distance of the extended power transmission element (203) is measured (303) from one or more marks present on the key (10) of the two-wheeler vehicle. The key (10) includes one or more marks that represent the minimum (101) and maximum (102) range of slackness from the tip (106) of the key (10) as determined by the two-wheeler manufacturing company. Thereafter determining (304) the slackness of the power transmission element (203) depending on the measured distance of the extended power transmission element (203) from the tip (106) of the key (10).
FIGURE 4 illustrates a vehicle key (10) according to another embodiment of the current invention. The vehicle key (10) as illustrated in the figure includes a metal portion (105) and a rubber/plastic cover (104). In the present embodiment, the total height of the rubber/plastic cover (104) represents the total range of adequate permissible slackness for smooth operation. The intersection point of the rubber/plastic cover (104) and the metal portion (105) represents the mark of the minimum (101) range of slackness and the opposite end of the rubber/plastic cover (104) represents the mark of the maximum (102) range of slackness.
As per the first embodiment of the present invention, after the power transmission element (203) is extended in the opposite direction and the distance of the extended point on the power transmission element (203) from the connecting member (204) is measured by placing the tip (106) of the key (10) on the bottom of the connecting member (204), if the extended point of the power transmitting element falls below the minimum (101) mark provided on the key (10) then power transmission element (203) is determined as overtight. On the other hand, if the extended point of the power transmission element (203) falls above the maximum (102) mark provided on the key (10), then the power transmission element (203) is determined as slacked.
As per the second embodiment of the present invention, after the power transmission element (203) is extended in the opposite direction and the distance of the extended point on the power transmission element (203) from the connecting member (204) is measured by placing the tip (106) of the key (10) on the bottom of the connecting member (204) if the power transmission element (203) falls in the between the range of minimum (101) and maximum (102) mark provided on the key (10), then the power transmission element (203) is determined as neither it is overtight not it is slacked. As a result, the circumference of the power transmission element (203) is adequate for the smooth operation of the two-wheeler vehicle.
As per the third embodiment of the present invention, the power transmission element (203) of the two-wheeler vehicle can be such as but not limited to a belt or a chain.
As per the fourth embodiment of the present invention, the key (10) of the two-wheeler vehicle includes one or more marks that are marked at a predetermined distance from each other and also from the tip (106) of the key (10).
As per the fifth embodiment of the present invention, one or more marks present on the key (10) of the two-wheeler vehicle may be scribble marks, grooves, scratch marks, engrossed marks, or engraved marks. Moreover, one or more mark may be present on the rubber or plastic part of the key (10) which act as a holder of the key (10). As per another embodiment of the present invention, the whole key (10) length can be kept as the maximum (102) permissible limit for the slackness of the power transmission element (203). On the other hand, the total length of the metal portion (105) of the key (10) can be kept as the minimum (101) permissible limit for the slackness of the power transmission element (203) so that the transmission element doesn’t become over-tight.
As per the sixth embodiment of the present invention, the connecting member (204) is a swingarm of the two-wheeler vehicle.
As per the seventh embodiment of the present invention, the total length of a cover (104) of the key (10) may be represented as one or more marks for measuring the minimum (101) and maximum (102) range of slackness.
While specific language has been used to describe the invention, any limitations arising on account of the same are not intended. As would be apparent to a person skilled in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein.
The figures and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. Also, those acts that are not dependent on other acts may be performed in parallel with the other acts. The scope of embodiments is by no means limited by these specific examples.
FURTHER ADVANTAGES OF THE INVENTION
So, the current invention solves the problem of measuring slackness of a power transmission element (203) without carrying any additional tool separately. As a result, the system (20) and method (30) provided by the present invention refrain from blocking additional space in the motorcycle. Moreover, the method (30) of measuring slackness of the power transmission element (203) as disclosed by the present invention refrains from configuring or attaching any device or part of the measurement tool to the connecting member (204). This provides a simplified way of measuring slackness. Other than this, it becomes easier and more convenient for the user for not to carry any separate tool for slackness measurement.

REFERENCES
Key- 10
Mark of minimum range of slackness- 101
Mark of the maximum range of slackness-102
Range of the limit between minimum and maximum mark- 103
Rubber/plastic cover- 104
Metal portion- 105
Tip of the key- 106
Front sprocket- 201
Rear Sprocket- 202
Power transmission element-203
Connecting member-204
Main frame- 205
, Claims:CLAIMS
We claim:
1. A method (30) for measuring slackness of a power transmission element (203) in a two-wheeler vehicle, the method (30) comprises:
placing (301) a tip (106) of a key (10) of the two-wheeler vehicle on the bottom side of a connecting member (204), the connecting member (204) connects a wheel of the two-wheeler vehicle with a main frame of the two-wheeler vehicle;
extending (302) the power transmission element (203) of the two-wheeler vehicle at a maximum distance away from the connecting member (204);
measuring (303) the distance of the extended power transmission element (203) from one or more marks present on the key of the two-wheeler vehicle, the one or more marks represents the minimum (101) and maximum (102) range of the slackness,
determining (304) the slackness of the power transmission element (203) based on the measured distance of the extended power transmission element (203).
2. The method (30) as claimed in claim 1, wherein determining (304) the slackness of the power transmission element (203) comprises:
determining that the power transmission element (203) is slacked or overtight if the power transmission element (203) falls outside of a range provided between one or more marks representing the minimum (101) and maximum (102) range of slackness while measuring the distance of the power transmission element (203).
3. The method (30) as claimed in claim 1, wherein determining (304) the slackness of the power transmission element (203) comprises:
determining that the power transmission element (203) is neither slacked nor overtight if the power transmission element (203) falls in between the range provided between one or more marks representing the minimum (101) and maximum slackness while measuring the distance of the power transmission element (203).
4. A system (20) for measuring slackness of a power transmission element (203) in a two-wheeler vehicle, the system (20) comprises:
a key (10) of the two-wheeler vehicle configured to place a tip (106) of the key (10) on the bottom side of a connecting member (204),
the key (10) comprising one or more marks representing a minimum (101) and maximum (102) range of the slackness,
the connecting member (204) for connecting a wheel of the two-wheeler vehicle with a main frame of the two-wheeler vehicle,
a power transmission element (203) of the two-wheeler vehicle for transmitting rotational motion from a motor to the wheel,
wherein
the power transmission element (203) is extended at a maximum distance away from the connecting member (204),
distance of the power transmission element (203) from one or more marks of the key (10) (10) is measured, and
the slackness of the power transmission element (203) is determined based on the measured distance of the power transmission element (203).
5. The system (20) as claimed in claim 4, wherein the power transmission element (203) may be a chain or a belt.
6. The system (20) as claimed in claim 4, wherein one or more marks are provided on the key (10) are at a predetermined distance.
7. The system (20) as claimed in claim 4, wherein the one or more marks may be scribble marks, grooves, scratch marks, engrossed marks, engraved marks present on a cover (104) of the key (10).
8. The system (20) as claimed in claim 4, wherein the connecting member (204) is a swing arm.
9. The system (20) as claimed in claim 4, wherein the total length of the cover (104) of the key (10) may be represented as one or more marks for measuring the minimum (101) and maximum (102) range of slackness.