Description:TIRE TRANSFER DEVICE ASSEMBLY FOR LOADING UNVULCANIZED TIRE

Field of invention:

The present invention relates generally to an equipment in a vulcanizing machine, specifically for transferring the unvulcanized raw form of tire before it gets vulcanized and also vulcanized finished form of tire, after it is vulcanized.

Background of the invention:

The raw form of tire, commonly known as the unvulcanized tire, is usually of huge construction weight and with diametrical variations in its centre bead and outer circumference portions which is a result of the tire size ranges. In a tire manufacturing process, the unvulcanized tires as such, undergo vulcanization during manufacture. The unvulcanized tire is positioned in a tire curing press to carry out the tire vulcanizing process and taken back after completion of the vulcanization process. Tire loader has been employed in conjunction with tire curing presses for many years by the tire manufacturers.

The tire loader is a device that picks up unvulcanized tire from a tire transfer device by means of a grabbing device, commonly known as Chuck. The finger like grabbing elements of a chuck, commonly known as paddles, grip an uncured tire positioned proximate to a tire curing press, maintains engagement with the uncured tire while a loader assembly moves the loader to a position proximate to the lower mold cavity of the tire curing press, and releases the uncured tire at a precise position relative to the lower mold cavity preparatory to closure of the tire curing press and commencement of the tire vulcanization process. The paddles are equally dispersed on a circular circumference in varying quantity according to the requirement of Tire manufacturer. The purpose of tire transfer device is to make the complicated process of tire curing precisely automated and eliminate involvement of costly manual labour. Also, the tire transfer device does the function of unloading the finished tire from lower mold cavity of press to a tire discharge station.

With the universal acceptance of radial ply tires, it has become inevitable that accurate location of an uncured tire at the center of the lower mold cavity of a tire curing press is essential to the production of a high-quality radial tire. It has thus become common for tire manufacturers to require repeatability of positional accuracy of uncured tires to precision. The precision loading most importantly involves the tire loader, which is consisting of a movable arm, capable of movement between two horizontally spaced positions with repeat precision. Numerous loaders having various arrangements of pivoting arms are known in the art to provide arcuate movement of a tire loader between two fixed positions.

The next important facet of precision loading involves the precise positioning and movement of the tire-engaging members of the tire loader relative to its central axis. This requires that the engaging members be radially independently adjustable relative to the said central axis. Ancillary to this requirement is the necessity that the tire loader remain flexible to accommodate unvulcanized tires of different profile variations (Variations in its bead diameter, outer diameter and tire-built profile boundaries).

Prior-art tire loader have been variously constructed to perform the functions of engaging and releasing an uncured tire and for radial adjustment to appropriately engage and disengage uncured tires having differing bead diameters. The lack of initial setting precision, the lost motion in employing a plurality of interconnected components, necessitating sensitive and complex mechanisms of chuck, the large bead range requirements, inability of stopping the loader at multiple positions with additional safety locking, lack of rigid and robust actuator mechanism to actuate the movable arm to tire loader with high precision position stopping and the tendency of some types of components to develop premature wear characteristics, all of which affect accuracy and cost, have precluded a broad-based adoption of any single tire loader design.

Furthermore, the bulky construction of existing loader assembly leads to increase in press stroke and press foot print.

Summary of the invention:

Therefore an object of the present invention provides an innovative tire transfer device, which successfully overcomes the aforesaid issues associated with the existing unvulcanized tire transfer devices.

The object is contemplated by providing a tire transfer device assembly for loading and unloading of unvulcanized/cured tire, said tire transfer device assembly comprising a vertically placed loader column, a sliding bracket configured to execute a linear motion along said loader column, a first actuation mechanism operably coupled with said sliding bracket, said first actuator member being configured to actuate said sliding bracket to execute said linear motion, a movable arm assembly pivotally attached with on said sliding bracket, a second actuation mechanism operably coupled with said movable arm assembly, said second actuation mechanism being configured to rotate said movable arm assembly in a predefined manner, and a chuck assembly connected to the movable arm assembly and configured to grab and release said unvulcanized tire, wherein said chuck assembly comprises a chuck plate attached with the movable arm assembly with an fastening assembly, an actuator ring mounted on said chuck plate, a paddle mechanism engaged with said actuator ring through a paddle linkage, said paddle mechanism is configured to move along a concentrically radial direction for moving inwardly and outwardly to disengage and engage an upper bead of said unvulcanized tire.

In another object of the invention, said paddle mechanism comprises an actuation plate, a paddle guide plate coupled with said actuation plate to slide therein, a quick adjustment pin screwed between said actuation plate and said paddle guide plate to adjust the sliding movement of said paddle guide plate, a paddle member attached with said paddle guide plate and configured to move in a guided manner in said concentrically radial direction between a first position and a second position, wherein the movement from said first position towards said second position is in said radially inward direction and vice versa, an actuation pin mounted on said actuation plate and coupled with said paddle mechanism.

In yet another object of the invention, wherein said fastening assembly comprises an adjustment stud, a nut, a spherical washer, lock washer and castle nut.

In another object of the invention, said spherical washer is held by means of said nut on said movable arm assembly, and said adjustment stud being fastened between said chuck plate and said movable arm assembly by means of said lock washer and castle nut.

In yet another object of the invention, said fastening assembly further comprising plurality of adjustment bolts disposed on said movable arm assembly, said adjustment bolts being in contact with said chuck assembly to adjust the concentricity of said chuck assembly.

In another objection of the invention, at said first position of said paddle member, said paddle guide plate remain within said actuation plate and at said second position, said paddle guide plate slides out of said actuation plate to said radian inward direction.

In another object of the invention, said chuck assembly comprising a third actuation mechanism being pivotally engaged with said chuck plate to rotate sad actuator ring in a predefined manner, and an open arc plate is connected between said actuator ring and said third actuation mechanism, an open stopper to control the movement of said open arc plate, a close arc plate mounted on the actuator ring, and a close stopper to control the movement of said close arc plate.

In yet another object of the invention wherein said second actuation mechanism comprises an actuator member having an actuator rod coupled with said movable arm assembly, a front trunnion connected to the sliding bracket, a rear trunnion connected said front trunnion with a tire rod, a hitting block slidingly engaged with said tire rod, and a stopper bolt and a damper screwed to said front trunnion, such that said movable arm assembly is positioned by adjusting said stopper bolt an said damper.

In yet another object of the invention, said chuck assembly comprises: a pair of sacrificial guides disposed at each side of said paddle mechanism to support the guided movement of said paddle member.

In another object of the invention said tire transfer device assembly comprises a linear motion rail disposed along said loader column for receiving said sliding bracket, and plurality of linear motion sensors disposed along the extension of said linear motion rail, wherein said linear motion sensors are configured to detect the position of said sliding bracket while sliding on said linear motion rail.

In yet another object of the invention, said linear motion sensors are Linear Variable Displacement Transducers(LVDT).

In yet another object of the invention, said tire transfer device comprises extension bracket for coupling said sliding bracket with said first actuator member, said extension bracket being mounted on said sliding bracket.

In yet another object of the invention, said first actuation mechanism and second actuation mechanism is Pneumatic, Hydraulic or Electric in nature.

In another object of the invention, said tire transfer device comprises a safety stopper disposed on said extension bracket in a spaced apart manner, said safety stopper being configured to engaged and disengaged said sliding bracket at predefined positions of said loader column.

In yet another object of the invention, said safety stopper comprises a stopper bracket mounted on said sliding bracket, a fourth actuation mechanism bolted with said stopper bracket, a guide bracket attached with said stopper bracket, a stopper bolt coupled with said guide bracket, an electrical sensing device, preferably a limit switch or any other means is mounted on the stopper bracket having a link with said guide bracket such that upon actuation of said fourth actuation mechanism, said stopper bolt actuates said electrical sensing device.

Brief description of the drawings:

Figure 1 depicts an isometric perspective view the invented tire transfer device assembly according to one embodiment of the invention.

Figure 2 depicts a schematic top view the invented tire transfer device assembly according to one embodiment of the invention.

Figure 3 depicts a schematic front view the invented tire transfer device assembly in a vulcanizing machine according to one embodiment of the invention.

Figure 4 depicts an isometric perspective view of the movable arm connected to the chuck assembly according to one embodiment of the invention.

Figure 5 depicts a cross sectional view of parallelism adjustment mechanism between the movable arm and the chuck assembly according to one embodiment of the invention.

Figure 6 depicts a schematic bottom view of the movable arm and chuck assembly according to one embodiment of the invention.

Figure 7 depicts an isometric perspective view of the chuck assembly according to one embodiment of the invention.

Figure 8 depicts a schematic front view of the sacrificial paddle guides disposed at both sides of the paddle mechanism and coupled with the chuck plate.

Figures 9(a) and 9(b) depict two isometric views of the paddle mechanism showing the components therein with the paddle member being at its first position.

Figure 10(a) depicts an isometric view of the paddle mechanism with the paddle member being at its first position.

Figure 10(b) depicts another isometric view of paddle mechanism with the paddle member being at its second position.

Figure 11 depicts an isometric view of the open stopper mechanism to control the open arc plate of the chuck assembly.

Figure 12 depicts an isometric view of the close stopper mechanism to control the close arc plate of the chuck assembly.

Figure 13 depicts an isometric view of the actuation mechanism to operate the movable arm according to one embodiment of the invention.

Figure 14(a) depicts an isometric view of safety stopper mechanism according to one embodiment of the invention.

Figure 14(b) depicts a top plan view of the safety stopper mechanism according to one embodiment of the invention.

Figure 15 depicts a cross sectional view of safety stopper mechanism at an engaged condition.

Figure 16 depicts another cross sectional view of safety stopper mechanism at a disengaged condition.

Detailed description of the drawings:

In the following, numerous specific details are set forth to provide a thorough description of embodiment. Those skilled in the art will recognize and appreciate that, despite of the detailed nature of the exemplary embodiment provided herein; changes and modifications may be applied to said embodiment without limiting or departing from the generally intended scope.

Figure 1 of the accompanying drawings illustrates the isometric view of the invented tire transfer device assembly (100). The tire transfer device assembly (100) comprises a loader column (1), a sliding bracket (2) , a first actuation mechanism (6), a movable arm assembly (3), a second actuation mechanism (7), and a chuck assembly (4). The components here are disposed in pairs about the loader column (1), preferably is a symmetrical manner as clearly illustrated in figure 2. The loader column (1) is generally placed vertically, on which the sliding bracket (2) is configured to execute a linear motion in a vertical up and down direction. The first actuation mechanism (6) according to the present embodiment of the invention is an actuator rod which, without any limitation is pneumatic in nature. In alternative embodiments, the first actuation mechanism (6) can also be hydraulic or electric in nature.

As shown in figure 1, an extension bracket (5) is disposed along the loader column (1). The extension bracket (5) being mounted on the sliding bracket (2), established a coupling connection between the sliding bracket (2) and said first actuation mechanism (6). The tire transfer device assembly (100) further comprises a linear motion rail (9) disposed along loader column (1) for receiving said sliding bracket (2). In this moving mechanism of sliding mechanism, the position of the sliding bracket (2) can be monitored. The linear motion rail (9) consists of plurality of linear motion sensors (10) which are disposed in spaced apart manner on the linear motion rail (9). The linear motion sensors (10) in this preferred embodiment of the invention are Linear Variable Displacement Transducers (LVDT). The movement of the sliding bracket (2) is sensed by this LVDT, which in turns senses the motion of the movable arm assembly (3).

With further reference to figures 1-4, the movable arm assembly (3) is pivotally attached with said sliding bracket (2). The second actuation mechanism (7) operably coupled with said movable arm assembly (3) to rotate said movable arm assembly (3) in a predefined manner a chuck assembly (4) connected to the movable arm assembly (3) with a parallelism adjustment mechanism and configured to grab and release said unvulcanized/cured tire. The chuck assembly (4) is further provided with concentricity adjustment. As can be seen in figure 2, the components described here are provided in pairs and preferably in a is a combination of Left-hand side and Right-hand side comprising similar but mirrored components used for catering the twin cavities of Hydraulic tire curing Press.

An isometric view of the chuck assembly (4) connected to the movable arm assembly (3) is shown in figure 4 of the accompanying drawings. As shown in figure 7, the chuck assembly (4) comprises a chuck plate (4A), an actuator ring (4B), and a paddle linkage (4F) and a paddle mechanism (4E). The chuck plate (4A) being attached with the movable arm assembly (3), creates a link between chuck assembly (4) connected to the movable arm assembly (3). The actuator ring (4B) is mounted on the inner periphery of said chuck plate (4A). The paddle linkage (4F) being engaged with said actuator ring (4B), is configured to move in a predefined concentricity around a central axis of said tire transfer device assembly. The paddle linkage (4F) controls the movement of the paddle mechanism (4E) along concentrically radial direction for moving inwardly and outwardly to disengage and engage an upper bead of said unvulcanized tire.

With reference to figures 7-8, said chuck assembly (4) comprises plurality of bearings (4C) are provided on said chuck plate (4A). The actuator ring (4B) is coupled with the chuck plate (4A) with said bearings (4C). A third actuation mechanism (4G) is pivotally engaged with said chuck plate (4A) to rotate sad actuator ring (4B) in a predefined manner. The third actuation mechanism (4G) without any limitation is pneumatic in nature. In alternative embodiments, the third actuation mechanism (4G) can also be hydraulic or electric in nature.

As shown in figure 7, an open arc plate (4I) is connected between said actuator ring (4B) and said third actuation mechanism (4G). An open stopper mechanism (4H) is provided to control the movement of said open arc plate (4I). Figure 11 illustrates the isometric view of the open stopper mechanism (4H) comprising an open stopper bracket (4Ha), a guide rod (4Hd), a pointer (4Hg) and a guide bracket (4Hf). The open stopper bracket (4Ha) is engaged with said chuck plate (4A) using an open stopper bolt (4Hb) and an open stopper nut (4Hc). The pointer (4Hg) is mounted on the guide bracket (4Hf) and points towards an open stopper label (4Hh) which is mounted on the chuck plate (4A). The guiding rod (4Hd) with a guide rod nut (4He) houses the guide bracket (4Hf) which in turns is also connected with the open stopper bolt (4Hb).

A close arc plate (4K), as shown in figure 7, mounted on the actuator ring (4B). A close stopper mechanism (4J) to control the movement of said close arc plate (4K). Figure 12 illustrates the isometric view of the close stopper mechanism (4J). The close stopper mechanism (4J) comprises a close stopper bracket (4Ja), a close stopper guide (4Jb) guided on said close stopper bracket (4Ja), a quick adjustment pin (4Jg) and a holding plate (4Jd). The quick adjustment pin (4Jg) holds the close stopper bracket (4Ja) and the close stopper guide (4Jb). The close stopper bracket (4Ja) is fastened on the chuck plate (4A). The close stopper guide (4Jb) comprises an adjustment knob (4Jc) mounted on it for handling. The close stopper mechanism (4J) is further provided with a close stopper bolt (4Je) and close stopper label (4Jh). The close stopper bolt (4Je) is mounted on the close stopper guide (4Jb) with a close stopper nut (4Jf). The close stopper label (4Jh) is mounted on the close stopper guide (4Jb) and holding plate (4Jd) is mounted on the close stopper bracket (4Ja).

With reference to figure 9(a) to 10(b), paddle mechanism (4E) comprises an actuation plate (4Ea), a paddle guide plate (4Ec), a quick adjustment pin (4Ef), a paddle member (4Ee), and an actuation pin (4Eb). The paddle guide plate (4Ec) coupled with said actuation plate (4Ea) to slide thereon. The quick adjustment pin (4Ef) is screwed between said actuation plate (4Ea) and said paddle guide plate (4Ec). The sliding movement of said paddle guide plate (4Ec) is adjusted using the quick adjustment pin (4Ef). The actuation pin (4Eb) is mounted on said actuation plate (4Ea) and coupled with said paddle mechanism (4E). The position of the paddle guide plate (4Ec) can be adjusted by quick lift and release of the quick adjustment pin (4Eb) to handle various bead sized of the unvulcanized cured tire.

The paddle member (4Ee) is coupled with said paddle guide plate (4Ec) and configured to move in a guided manner in a concentrically radial direction between a first position and a second position. At the first position of said paddle member (4Ee), as shown in figure 10(a), said paddle guide plate (4Ec) remain within said actuation plate (4Ea). At the second position of said paddle member (4Ee), as shown in figure 10(b), said paddle guide plate (4Ec) slides out of said actuation plate (4Ea). In this preferred embodiment of the invention, the movement from said first position towards said second position is in said radially inward direction and vice versa.

As shown in figure 8, the guiding mechanism in the chuck assembly (4) consists of a pair of sacrificial guides (4L) disposed at each side of said paddle linkage (4F) to support the guided movement of said paddle member (4Ee).

The connection between the movable arm assembly (3) and chuck assembly (4) having the parallelism adjustment mechanism is illustrated in Figure 5. With reference to figures 5-6, the parallelism adjustment mechanism comprises an adjustment stud (3A), a nut (3B), a spherical washer (3C), lock washer (3D) and castle nut (3E). The adjustment stud (3A) establishes the primary connection between movable arm assembly (3) and chuck plate (4A). According to a preferred embodiment as shown in figure 6, the adjustment stud (3A) is fastened between said chuck plate (4A) and said movable arm assembly (3) by means of said lock washer (3D) and castle nut (3E). The spherical washer (3C) is held by means of said nut (3B) on said movable arm assembly (3).

The concentricity adjustment feature provided on the movable arm assembly (3) is schematically shown in figure 6. This feature aids in controlling the concentricity of the chuck assembly (4). The parallelism adjustment mechanism works without disturbing this concentricity adjustment feature. The parallelism adjustment mechanism further comprising plurality of adjustment bolts disposed on said movable arm assembly (3), said adjustment bolts being in contact with said chuck assembly (4) to adjust the concentricity of said chuck assembly (4).

The tire transfer device assembly (100), according to the figures 14(a)-14(b) of the accompanying drawings consists of a safety stopper (8) to engage and disengage said sliding bracket (2) at predefined positions of said loader column (1). The safety stopper (8) is disposed on said extension bracket (5) in a spaced apart manner. safety stopper (8) comprises a stopper bracket (8A), a fourth actuation mechanism (8B), a guide bracket (8F), a stopper bolt (8G), and an electrical sensing device (8D), preferably a limit switch mounted on the stopper bracket (8A). The stopper bracket (8A) being mounted on said sliding bracket (2), establishes a link between said safety stopper (8) and said sliding bracket (2). The stopper bolt (8G) is coupled with said guide bracket (8F), and fourth actuation mechanism (8B) bolted with said stopper bracket (8A) such that upon actuation of said fourth actuation mechanism (8B), said stopper bolt actuates said electrical sensing device (8D).

The safety stopper (8) further comprises a safety pin (8C) and plurality of bushes (8H). The bushes (8H) are mounted inside the extension bracket (5). The safety pin (8C) is attached to the actuation mechanism (8B) and thereupon sliding on the mounted inside the extension bracket (5) to move between a first position and a second position. In the first position, as shown in figure 15, the safety stopper (8) is in an engaged condition with said sliding bracket (2), with the safety pin (8c) being inside the extension bracket (5). In the second position, as shown in figure 16, the safety stopper (8) is in an disengaged condition with said sliding bracket (2), with the safety pin (8c) being out of the extension bracket (5). The fourth actuation mechanism (8B) without any limitation is pneumatic in nature. In alternative embodiments, the fourth actuation mechanism (8B) can also be hydraulic or electric in nature.

As shown in figure 13, second actuation mechanism (7) comprises an actuator member (7A), a front trunnion (7B), a rear trunnion (7D), a hitting block (7E), a stopper bolt (7H) and a damper (7G). The actuation member consisting an actuator rod being coupled with said movable arm assembly (3). A tire rod connects said rear trunnion (7D) with said front trunnion (7B), where the front trunnion (7B) connected to the sliding bracket (2). The actuator member (7A) and the actuator rod (7F) are couple to the movable arm assembly (3).On actuation of the actuator member (7A). Thus the actuator member (7A) along with actuator rod (7F) drives the movable arm assembly (3). The actuator member (7A) without any limitation is pneumatic in nature. In alternative embodiments, the actuator member (7A) can also be hydraulic or electric in nature. Further, as said stopper bolt (7H) and said damper (7G) are adjusted, the hitting block (7E) slides on said tire rod (7C) and thereupon the position of the movable arm assembly (3) is changed. The stopper bolt (7H) and the damper (7G) is screwed to said front trunnion (7B) at all times.

Thus the overall construction of the tire transfer device assembly (100) has been modular considering the varying requirements of tire manufactures and the uncertainties in the shape of unvulcanized tire. The complex, sensitive mechanism has been replaced with a simple and robust mechanism that requires relatively less manufacturing precision and the lesser components employed ensure the force of grabbing the tire is always standard irrespective of the size of the tire. The usage of parallelism adjustment mechanism and concentricity adjustment enables the tire manufactures to stop the loader assembly at different positions with additional safety and reduces the maintenance time thereby increasing the overall plant productivity.

As already mentioned, the foregoing description is illustrative of the invention and not limitative to its scope, because it will be apparent to persons skilled in the art to devise other alternative embodiments without departing from the broad ambit of the disclosures made herein.
, Claims:We claim:

1. A tire transfer device assembly (100) for loading unvulcanized tire, said tire transfer device assembly (100) comprising:
- a vertically placed loader column (1),
- a sliding bracket (2) configured to execute a linear motion along said loader column (1),
- a first actuation mechanism (6) operably coupled with said sliding bracket (2), said first actuator member being configured to actuate said sliding bracket (2) to execute said linear motion,
- a movable arm assembly (3) pivotally attached with said sliding bracket (2),
- a second actuation mechanism (7) operably coupled with said movable arm assembly (3), said second actuation mechanism (7) being configured to rotate said movable arm assembly (3) in a predefined manner, and
- a chuck assembly (4) connected to the movable arm assembly (3) having a parallelism adjustment mechanism and configured to grab and release said unvulcanized tire,
wherein said chuck assembly (4) comprises:
- a chuck plate (4A) attached with the movable arm assembly (3),
- an actuator ring (4B) mounted on said chuck plate (4A),
- a paddle mechanism (4E) engaged with said actuator ring (4B) through a paddle linkage (4F), said paddle mechanism (4E) is configured to move along a concentrically radial direction for moving inwardly and outwardly to disengage and engage an upper bead of said unvulcanized tire.

2. The tire transfer device assembly (100) as claimed in claim 1, wherein said paddle mechanism (4E) comprises:
- an actuation plate (4Ea);
- a paddle guide plate (4Ec) coupled with said actuation plate (4Ea) to slide thereon;
- a quick adjustment pin (4Ef) screwed between said actuation plate (4Ea) and said paddle guide plate to adjust the sliding movement of said paddle guide plate (4Ec)
- a paddle member (4Ee) attached with said paddle guide plate (4Ec) and configured to move in a guided manner in said concentrically radial direction between a first position and a second position, wherein the movement from said first position towards said second position is in said radially inward direction and vice versa;
- an actuation pin (4Eb) mounted on said actuation plate (4Ea) and coupled with said paddle mechanism (4E).

3. The tire transfer device assembly (100) as claimed in claim 1 or 2, wherein said parallelism adjustment mechanism comprises an adjustment stud (3A), a nut (3B), a spherical washer (3C), lock washer (3D) and castle nut (3E).

4. The tire transfer device assembly (100) as claimed in claim 3, wherein said spherical washer (3C) is held by means of said nut (3B) on said movable arm assembly (3), and
said adjustment stud being fastened between said chuck plate (4A) and said movable arm assembly (3) by means of said lock washer (3D) and castle nut (3E).

5. The tire transfer device assembly (100) as claimed in any of the preceding claims, wherein said parallelism adjustment mechanism further comprising plurality of adjustment bolts disposed on said movable arm assembly (3), said adjustment bolts being in contact with said chuck assembly (4) to adjust the concentricity of said chuck assembly (4).

6. The tire transfer device assembly (100) as claimed in any of the preceding claims, wherein at said first position of said paddle member (4Ee), said paddle guide plate remain within said actuation plate and at said second position, said paddle guide plate slides out of said actuation plate (4Ea) to said radial inward direction.

7. The tire transfer device assembly (100) as claimed in any of the preceding claims, wherein said chuck assembly (4) comprising:
- a third actuation mechanism (4G) being pivotally engaged with said chuck plate (4A) to rotate sad actuator ring (4B) in a predefined manner, and
- an open arc plate (4I) is connected between said actuator ring (4B) and said third actuation mechanism (4G)
- an open stopper mechanism (4H) to control the movement of said open arc plate (4I)
- a close arc plate (4K) mounted on the actuator ring (4B), and
- a close stopper mechanism (4J) to control the movement of said close arc plate (4K).

8. The tire transfer device assembly (100) as claimed in any of the preceding claims, wherein said second actuation mechanism (7) comprises:
- an actuator member having an actuator rod coupled with said movable arm assembly (3)
- a front trunnion (7B) connected to the sliding bracket (2),
- a rear trunnion (7D) connected said front trunnion (7B) with a tire rod (7C),
- a hitting block (7E) slidingly engaged with said tire rod (7C), and
- a stopper bolt (7H) and a damper (7G) screwed to said front trunnion (7B), such that said movable arm assembly (3) is positioned by adjusting said stopper bolt (7H) an said damper (7G).

9. The tire transfer device assembly (100) as claimed in any of the preceding claims, wherein said chuck assembly (4) comprises: a pair of sacrificial guides (4L) disposed at each side of said paddle mechanism to support the guided movement of said paddle member (4Ee).

10. The tire transfer device assembly (100) as claimed in any of the preceding claims, wherein said tire transfer device assembly (100) comprises:
- a linear motion rail (9) disposed along said loader column (1) for receiving said sliding bracket (2), and
- plurality of linear motion sensors (10) disposed along the extension of said linear motion rail (9),
Wherein said linear motion sensors (10) are configured to detect the position of said sliding bracket (2) while sliding on said linear motion rail (9).

11. The tire transfer device assembly (100) as claimed in claim 10, wherein said linear motion sensors (10) are Linear Variable Displacement Transducers (LVDT).

12. The tire transfer device assembly (100) as claimed in any of the preceding claims, wherein said tire transfer device comprises extension bracket (5) for coupling said sliding bracket (2) with said first actuation mechanism (6), said extension bracket (5) being mounted on said sliding bracket (2).

13. The tire transfer device assembly (100) as claimed in any of the preceding claims, wherein said tire transfer device comprises a safety stopper (8) disposed on said extension bracket (5) in a spaced apart manner, said safety stopper being configured to engaged and disengaged said sliding bracket (2) at predefined positions of said loader column (1).

14. The tire transfer device assembly (100) as claimed in claim 13, wherein said safety stopper (8) comprises:
- a stopper bracket (8A) mounted on said sliding bracket (2),
- a fourth actuation mechanism (8B) bolted with said stopper bracket (8A),
- a guide bracket (8F) attached with said stopper bracket (8A),
- a stopper bolt (8G) coupled with said guide bracket (8F),
- an electrical sensing device (8D) is mounted on the stopper bracket (8A) having a link with said guide bracket (8F) such that upon actuation of said fourth actuation mechanism (8B), said stopper bolt actuates said electrical sensing device (8D).

15. The tire transfer device assembly (100) as claimed in any of the preceding claims, wherein said first actuation mechanism (6) and second actuation mechanism (7) is Pneumatic, Hydraulic or Electric in nature.