TWM554443U - Derailleur assembly - Google Patents

Abstract

A transmission assembly includes a fixed member, a movable member, a first link member, a second link member, a drive member, and an elastic member. The first link member is pivotally arranged on one of the fixed members with a first pivot, and pivotally arranged on one of the movable members with a second pivot. The second link member is pivotally arranged at another place of the fixed member with a third pivot, and is pivotally arranged at another place of the movable member with a fourth pivot. The driving member is connected to pivot one of the first pivot shaft, the second pivot shaft, the third pivot shaft and the fourth pivot shaft to make it become the transmission shaft. The elastic member is disposed on one of the fixed member, the movable member, the first link member, and the second link member where the transmission shaft is pivoted, and directly contacts the transmission shaft.

Description

Transmission assembly

The present invention relates to a transmission assembly, in particular to a transmission assembly that can be shock-absorbing.

In recent years, the bicycle market has developed vigorously. Whether it is a competition-type high-end bicycle, a commuter-type road bicycle, or a recreational bicycle, it has been loved by consumers. Generally speaking, a bicycle can be equipped with a transmission. The transmission may have a flywheel formed by a plurality of chain rings with different numbers of teeth. The bicycle can move the chain to the gear plate with different number of teeth according to the terrain and the needs of users to match different gear ratios. The transmission includes a front derailleur and a rear derailleur. The rear derailleur can be installed on the frame of the bicycle to control the position of the chain hanging on the flywheel. With the different frame structure or shift line, the bicycle can be used with different rear derailleur. In addition to mechanical transmissions, many bicycles are also gradually adopting electronic transmissions.

However, when riding a bicycle on bumpy and rugged terrain, the transmission is often damaged due to body vibration or impact. Therefore, how to further prevent the transmission from being damaged due to shock or impact is one of the problems that R & D personnel should address.

In view of the above problems, the present invention proposes a transmission assembly, by which vibration can be buffered to avoid shock.

An embodiment of the present invention provides a transmission assembly, which includes a fixed member, a movable member, a first link member, a second link member, a driving member, and an elastic member. The first link member is pivotally arranged on one of the fixed members with a first pivot, and pivotally arranged on one of the movable members with a second pivot. The second link member is pivotally arranged at another place of the fixed member with a third pivot, and is pivotally arranged at another place of the movable member with a fourth pivot. The driving member is connected to pivot one of the first pivot shaft, the second pivot shaft, the third pivot shaft and the fourth pivot shaft to make it become the transmission shaft. The elastic member is disposed on one of the fixed member, the movable member, the first link member, and the second link member where the transmission shaft is pivoted, and directly contacts the transmission shaft.

According to one embodiment of the present invention, the transmission assembly can be connected into a four-link structure by a fixed member, a movable member, a first link member and a second link member, and the transmission shaft and pivot are connected by an elastic member The components of the transmission shaft enable the transmission shaft to drive the elastic member to rotate when there is no vibration or small amplitude vibration, thereby rotating the component connected to the elastic member, so that the movable member can move relative to the fixed member. When the transmission assembly is subjected to large-scale vibration, the large-scale vibration can be buffered by the elastic deformation of the elastic member, thereby avoiding damage to the components of the transmission assembly, thereby achieving the effect of shock absorption. Furthermore, since the elastic member directly contacts the transmission shaft, the number of components of the transmission assembly can be reduced, and the volume of the transmission assembly can be further reduced. In addition, the gap between the element provided by the elastic member and the pivot against which the elastic member abuts can also be reduced by the elastic member due to the tolerance.

The above description of the content of the new model and the description of the following embodiments are used to demonstrate and explain the spirit and principle of the new model, and provide a further explanation of the patent application scope of the new model.

The detailed features and advantages of the embodiment of the present invention are described in detail in the following embodiments. The content is sufficient for anyone with ordinary knowledge in the art to understand and implement the technical content of the embodiment of the present invention, and it is disclosed according to this specification The content, scope of patent application and drawings, anyone with ordinary knowledge in the art can easily understand the purpose and advantages of the new model. The following examples further illustrate the point of view of the novel, but do not limit the scope of the novel with any point of view.

In the so-called schematic diagram of this specification, the size, ratio, angle, etc. may be exaggerated due to the description, but it is not intended to limit the present invention. Various changes can be made without violating the gist of the new model. The description "upper" in the description may mean "overhang" or "contact with the upper surface". In addition, the terms "upper side", "lower side", "upper side", and "lower side" described in the description are for convenience of description, not for limiting the new model. "Substantially" described in the specification may mean deviations caused by tolerances in manufacturing.

Please refer to FIG. 1, FIG. 2 and FIG. 3, FIG. 1 is a schematic perspective view of a transmission assembly 1 according to an embodiment of the present invention, and FIG. 2 is a perspective schematic view of another transmission assembly 1 of FIG. 1, FIG. 3 is a perspective exploded view of the transmission assembly 1 of FIG. 2. As shown in FIG. 1, the transmission assembly 1 may include a fixed member 11, a movable member 12, a first link member 13, a second link member 14, an elastic member 15, a flywheel member 16 and a chain guide member 17.

The flywheel member 16 in FIGS. 1 to 3 is a schematic diagram. The flywheel member 16 may have a plurality of gear wheels of different sizes or number of teeth, and may be provided on wheels of bicycles, for example. The rotation of the flywheel member 16 causes the wheel to rotate. The flywheel member 16 can be directly pivoted on the fixed member 11. The flywheel member 16 can also be pivotally mounted on the frame of the bicycle, and the fixing member 11 can also be fixed to the bicycle frame, so the flywheel member 16 can also be indirectly pivotally mounted on the fixed member 11.

The chain guide member 17 is fixed on the movable member 12 and is used to guide the bicycle chain. The chain guide member 17 includes a first connecting piece 171, a second connecting piece 172, a first guide wheel 173, and a second guide wheel 174. The first guide wheel 173 and the second guide wheel 174 are pivotally disposed between the first connection piece 171 and the second connection piece 172 and between the first connection piece 171 and the second connection piece 172. The first connecting piece 171 is fixed on the movable member 12. The first guide wheel 173 is farther from the movable member 12 than the second guide wheel 174.

Please refer to FIG. 3, FIG. 4, FIG. 5 and FIG. 6, FIG. 4 is a schematic side view of some components of the transmission assembly 1 of FIG. 3, and FIG. 5 is a perspective exploded view of some components of the transmission assembly 1 of FIG. Schematic diagram. FIG. 6 is an exploded schematic side view of some components of the transmission assembly 1 of FIG. 4.

The first link member 13 is pivotally disposed at one of the fixing members 11 with a first pivot 181. The first link member 13 is pivotally disposed at one of the movable members 12 with the second pivot 182. The second link member 14 is pivotally provided at another place of the fixing member 11 with a third pivot 183. The second link member 14 is pivotally provided at another place of the movable member 12 with a fourth pivot 184.

As shown in FIGS. 5 and 6, in this embodiment, the transmission assembly 2 further includes a driving member 19a and a transmission member 19b. The driving member 19a is connected to the transmission member 19b, and the transmission member 19b is connected to the second pivot 182. The driving member 19a serves to pivot the second pivot shaft 182 via the transmission member 19b to become the transmission shaft. The driving member 19a may be a motor, or may include a motor and a deceleration component that can protect the motor. The transmission member 19b includes a worm 191 and a worm wheel 192. The worm 191 is provided on the drive member 19a. The worm gear 192 is disposed on the second pivot 182 that becomes the transmission shaft. The worm 191 is engaged with the worm wheel 192, and the worm 191 is used to pivot the worm wheel 192. The transmission member 19b can adjust the gear ratio of the worm 191 and the worm wheel 192 to have a buffer effect of deceleration. In addition, the transmission member 19b can have a self-locking protection effect by adjusting the gear angle of the worm 191 and the worm wheel 192, that is, the worm 191 can drive the worm wheel 192 to rotate and the worm wheel 192 does not drive the unidirectional driving effect of the worm 191 rotating. When the second pivot shaft 182 rotates unexpectedly due to an unexpected external force, the worm gear 192 may rotate unexpectedly. By the buffering and self-locking function of the transmission member 19b, the external force can be effectively prevented from being transmitted back to the driving member 19a.

In this embodiment, the elastic member 15 may include an elastic portion 151 and a fixing portion 152. The elastic portion 151 of the elastic member 15 is fixed to the movable member 12 pivotally provided by the second pivot 182 by the fixing portion 152, and the elastic portion 151 directly contacts the second pivot 182. The driving member 19a can be mounted on the first link member 13 pivoted by the second pivot 182. The second pivot 182 that becomes the transmission shaft has a groove 182a. A part of the elastic portion 151 of the elastic member 15 is placed in the groove 182a. The elastic portion 151 of the elastic member 15 may be an elastic element such as a torsion spring, a coil spring, a shrapnel, etc., and its equivalent stiffness coefficient k may be 0.126-0.3 N / mm. When the elastic member 15 is a torsion spring, the spring constant of the torsion spring may be 150-350 N‧mm / rev. In other embodiments, the elastic portion 151 can also be directly fixed on the movable member 12.

In summary, the transmission assembly 1 can be connected into a four-link structure by the fixed member 11, the movable member 12, the first link member 13 and the second link member 14, and connected to the transmission shaft by the elastic member 15 The second pivot 182 and the movable member 12. When there is no vibration or small vibration, the driving member 19a can pivot the second pivot 182 to drive the elastic member 15 to rotate, so that the movable member 12 connected to the elastic member 15 can rotate relative to the first link member 13. With the structure of four links, the movable member 12 can move relative to the fixed member 11. Therefore, the chain guide member 17 provided on the movable member 12 can move relative to the fixed member 11 and then move relative to the flywheel member 16. Therefore, the chain guide member 17 can guide the chain to switch to the different gear plate of the flywheel member 16 and thereby switch the different gear ratio.

When the transmission assembly 1 is subjected to a large vibration, the large vibration can be buffered by the elastic deformation of the elastic member 15 to avoid damage to the connection between the second pivot 182 and the movable member 12, or Avoid damage to components such as the second pivot 182 and the movable member 12. In order to achieve the effect of shock absorption. Furthermore, since the elastic portion 151 directly contacts the second pivot 182, the number of components of the transmission assembly 1 can be reduced, and the volume of the transmission assembly 1 can be further reduced.

Furthermore, since the fixed portion 152 of the elastic member 15 is fixed to the movable member 12, and the elastic portion 151 of the elastic member 15 directly contacts the second pivot 182, the second pivot 182 can be pressed against the movable member 12 The shaft hole for installing the second pivot 182 is used to reduce the gap between the second pivot 182 and the movable member 12 due to tolerances. But it is not limited to this. When the elastic member 15 is disposed on other elements or against other pivots, the gap between the other pivots and the other elements due to tolerances can also be reduced.

Please refer to FIG. 7, which is a partial side view of partial components of the transmission assembly 1 ′ in another aspect of FIG. 5. In this aspect, the second pivot 182 'that becomes the transmission shaft has a through hole 182a', and a part of the elastic member 15 'is penetrated through the through hole 182a'.

Please refer to FIG. 8, which is a schematic diagram of a side view of a transmission assembly 2 according to another embodiment of the present invention. In this embodiment, the transmission assembly 2 is substantially similar to the transmission assembly 1 of FIG. 4, the first link member 23 is pivotally provided at one of the fixed members 21 with the first pivot 281 and the second pivot 282 is pivotally arranged at one of the movable members 22. The second link member 24 is pivotally arranged at another place of the fixed member 21 with a third pivot 283, and is pivotally arranged at another place of the movable member 22 with a fourth pivot 284. The first pivot 281 is closer to the flywheel member 26 than the third pivot 283. The second pivot 282 is closer to the chain guide member 27 than the fourth pivot 284.

However, in the transmission assembly 2, the elastic member 25, the driving member 29a, and the transmission member 29b may be provided at different positions. The transmission member 29b connects the driving member 29a and the second pivot 282 so that the second pivot 282 becomes the transmission shaft. The elastic member 25 may be fixed to the first link member 23 pivoted by the second pivot 282 and directly contact the second pivot 282. The driving member 29a can be mounted on the movable member 22 pivoted by the second pivot 282.

When there is no vibration or small amplitude vibration, the driving member 29a can pivot the second pivot 282 and can drive the elastic member 25 to rotate, so that the first link member 23 connected to the elastic member 25 can rotate relative to the movable member 22. With the four-bar structure, the movable member 22 can move relative to the fixed member 21. When the transmission assembly 2 is subjected to a large vibration, the large vibration can be buffered by the elastic deformation of the elastic member 25, and the second pivot 282, the first link member 23 and other components can be prevented from being damaged. In order to achieve the effect of shock absorption.

Please refer to FIG. 9, which shows a schematic side view of a transmission assembly 3 according to another embodiment of the present invention. In this embodiment, the transmission assembly 3 is substantially similar to the transmission assembly 1 of FIG. 4, the first link member 33 is pivotally disposed at one of the fixed members 31 with the first pivot 381, and the second pivot 382 is pivotally arranged at one of the movable members 32. The second link member 34 is pivotally arranged at another place of the fixed member 31 with a third pivot 383 and is pivotally arranged at another place of the movable member 32 with a fourth pivot 384. The first pivot 381 is closer to the flywheel member 36 than the third pivot 383. The second pivot 382 is closer to the chain guide member 37 than the fourth pivot 384.

However, in the transmission assembly 3, the elastic member 35, the driving member 39a, and the transmission member 39b may be provided at different positions. The transmission member 39b connects the drive member 39a and the first pivot 381 so that the first pivot 381 becomes the transmission shaft. The elastic member 35 can be fixed to the fixing member 31 pivoted by the first pivot 381 and directly contact the first pivot 381. The driving member 39a can be mounted on the first link member 33 pivoted by the first pivot 381.

When there is no vibration or small amplitude vibration, the driving member 39 a can pivot the first pivot 381 and can drive the elastic member 35 to rotate, so that the fixing member 31 connected to the elastic member 35 can rotate relative to the first link member 33. With the structure of four links, the movable member 32 can move relative to the fixed member 31. When the transmission assembly 3 is subjected to large-scale vibrations, the large-scale vibrations can be buffered by the elastic deformation of the elastic member 35 to prevent damage to the first pivot 381 and the fixing member 31 and other components. In order to achieve the effect of shock absorption.

Please refer to FIG. 10, which is a schematic diagram of a side view of a transmission assembly 4 according to another embodiment of the present invention. In this embodiment, the transmission assembly 4 is substantially similar to the transmission assembly 1 of FIG. 4, the first link member 43 is pivotally disposed at one of the fixing members 41 with the first pivot 481, and the second pivot 482 is pivotally arranged at one of the movable members 42. The second link member 44 is pivoted at another place of the fixed member 41 with a third pivot 483, and is pivoted at another place of the movable member 42 with a fourth pivot 484. The first pivot 481 is closer to the flywheel member 46 than the third pivot 483. The second pivot 482 is closer to the chain guide member 47 than the fourth pivot 484.

However, in the transmission assembly 4, the elastic member 45, the driving member 49a, and the transmission member 49b may be provided at different positions. The transmission member 49b connects the drive member 49a and the first pivot 481 so that the first pivot 481 becomes the transmission shaft. The elastic member 45 can be fixed to the first link member 43 pivoted by the first pivot 481 and directly contact the first pivot 481. The driving member 49a can be mounted on the fixing member 41 pivoted by the first pivot 481.

When there is no vibration or small amplitude vibration, the driving member 49a can pivot the first pivot 481 to drive the elastic member 45 to rotate, so that the first link member 43 connected to the elastic member 45 can rotate relative to the fixed member 41. With the structure of four links, the movable member 42 can move relative to the fixed member 41. When the transmission assembly 4 is subjected to large-scale vibration, the large-scale vibration can be buffered by the elastic deformation of the elastic member 45 to prevent damage to the first pivot 481 and the first link member 43 and other components. In order to achieve the effect of shock absorption.

Please refer to FIG. 11, which illustrates a schematic side view of a transmission assembly 5 according to another embodiment of the present invention. In this embodiment, the transmission assembly 5 is substantially similar to the transmission assembly 1 of FIG. 4, the first link member 53 is pivotally disposed at one of the fixing members 51 with the first pivot 581, and the second pivot 582 is pivotally arranged at one of the movable members 52. The second link member 54 is pivoted at another place of the fixed member 51 with a third pivot 583, and is pivoted at another place of the movable member 52 with a fourth pivot 584. The first pivot 581 is closer to the flywheel member 56 than the third pivot 583. The second pivot 582 is closer to the chain guide member 57 than the fourth pivot 584.

However, in the transmission assembly 5, the elastic member 55, the driving member 59a, and the transmission member 59b may be provided at different positions. The transmission member 59b connects the driving member 59a and the third pivot 583 so that the third pivot 583 becomes the transmission shaft. The elastic member 55 can be fixed to the second link member 54 pivoted by the third pivot 583 and directly contact the third pivot 583. The driving member 59a may be mounted on the fixing member 51 pivotally provided by the third pivot 583.

When there is no vibration or small amplitude vibration, the driving member 59a can pivot the third pivot 583 and can drive the elastic member 55 to rotate, so that the second link member 54 connected to the elastic member 55 can rotate relative to the fixed member 51. With the structure of four links, the movable member 52 can move relative to the fixed member 51. When the transmission assembly 5 is subjected to large vibrations, the large vibrations can be buffered by the elastic deformation of the elastic member 55 to prevent damage to the third pivot 583 and the second link member 54 and other components. In order to achieve the effect of shock absorption.

Please refer to FIG. 12, which illustrates a schematic side view structure of a transmission assembly 6 according to another embodiment of the present invention. In this embodiment, the transmission assembly 6 is substantially similar to the transmission assembly 1 of FIG. 4, the first link member 63 is pivotally disposed at one of the fixed members 61 with the first pivot 681, and the second pivot 682 is pivotally arranged at one of the movable members 62. The second link member 64 is pivoted at another place of the fixed member 61 with a third pivot 683, and is pivoted at another place of the movable member 62 with a fourth pivot 684. The first pivot 681 is closer to the flywheel member 66 than the third pivot 683. The second pivot 682 is closer to the chain guide member 67 than the fourth pivot 684.

However, in the transmission assembly 6, the elastic member 65, the driving member 69a, and the transmission member 69b may be provided at different positions. The transmission member 69b connects the driving member 69a and the third pivot 683 so that the third pivot 683 becomes the transmission shaft. The elastic member 65 can be fixed to the fixing member 61 pivotally provided by the third pivot 683 and directly contact the third pivot 683. The driving member 69a may be installed on the second link member 64 pivoted by the third pivot 683.

When there is no vibration or small amplitude vibration, the driving member 69a can pivot the third pivot 683 to drive the elastic member 65 to rotate, so that the fixing member 61 connected to the elastic member 65 can rotate relative to the second link member 64. With the structure of four links, the movable member 62 can move relative to the fixed member 61. When the transmission assembly 6 is subjected to a large vibration, the large vibration can be buffered by the elastic deformation of the elastic member 65, and the damage of the third pivot 683 and the fixing member 61 and other components can be avoided. In order to achieve the effect of shock absorption.

Please refer to FIG. 13, which illustrates a schematic side view structure of a transmission assembly 7 according to another embodiment of the present invention. In this embodiment, the transmission assembly 7 is substantially similar to the transmission assembly 1 of FIG. 4, the first link member 73 is pivotally disposed at one of the fixed members 71 with the first pivot 781, and the second pivot 782 is pivotally arranged at one of the movable members 72. The second link member 74 is pivotally arranged at another place of the fixed member 71 with a third pivot 783, and is pivotally arranged at another place of the movable member 72 with a fourth pivot 784. The first pivot 781 is closer to the flywheel member 76 than the third pivot 783. The second pivot 782 is closer to the chain guide member 77 than the fourth pivot 784.

However, in the transmission assembly 7, the elastic member 75, the driving member 79a, and the transmission member 79b may be provided at different positions. The transmission member 79b connects the driving member 79a and the fourth pivot 784 so that the fourth pivot 784 becomes the transmission shaft. The elastic member 75 can be fixed to the movable member 72 pivotally provided by the fourth pivot 784 and directly contact the fourth pivot 784. The driving member 79a may be installed on the second link member 74 pivoted by the fourth pivot 784.

When there is no vibration or small amplitude vibration, the driving member 79a can pivot the fourth pivot 784 to drive the elastic member 75 to rotate, so that the movable member 72 connected to the elastic member 75 can rotate relative to the second link member 74. With the structure of four links, the movable member 72 can move relative to the fixed member 71. When the transmission assembly 7 is subjected to large-scale vibration, the large-scale vibration can be buffered by the elastic deformation of the elastic member 75 to avoid damage to the fourth pivot 784 and the movable member 72 and other components. In order to achieve the effect of shock absorption.

Please refer to FIG. 14, which is a schematic diagram of a side view of a transmission assembly 8 according to another embodiment of the present invention. In this embodiment, the transmission assembly 8 is substantially similar to the transmission assembly 1 of FIG. 4, the first link member 83 is pivotally disposed at one of the fixed members 81 with the first pivot 881, and the second pivot 882 is pivotally arranged at one of the movable members 82. The second link member 84 is pivotally arranged at another place of the fixed member 81 with a third pivot 883, and is pivotally arranged at another place of the movable member 82 with a fourth pivot 884. The first pivot 881 is closer to the flywheel member 86 than the third pivot 883. The second pivot 882 is closer to the chain guide member 87 than the fourth pivot 884.

However, in the transmission assembly 8, the elastic member 85, the driving member 89a, and the transmission member 89b may be provided at different positions. The transmission member 89b connects the driving member 89a and the fourth pivot 884 so that the fourth pivot 884 becomes the transmission shaft. The elastic member 85 can be fixed to the second link member 84 pivoted by the fourth pivot 884 and directly contact the fourth pivot 884. The driving member 89a can be mounted on the movable member 82 pivoted by the fourth pivot 884.

When there is no vibration or small amplitude vibration, the driving member 89a can pivot the fourth pivot shaft 884 to drive the elastic member 85 to rotate, so that the second link member 84 connected to the elastic member 85 can rotate relative to the movable member 82. With the structure of four links, the movable member 82 can move relative to the fixed member 81. When the transmission assembly 8 is subjected to large-scale vibration, the large-scale vibration can be buffered by the elastic deformation of the elastic member 85, and the elements such as the fourth pivot 884 and the second link member 84 can be prevented from being damaged. In order to achieve the effect of shock absorption.

Please refer to FIGS. 15 and 16. FIG. 15 is a schematic side view of the transmission assembly 9 according to another embodiment of the present invention. FIG. 16 is a schematic side view of the transmission assembly 9 of FIG. In this embodiment, the transmission assembly 9 is substantially similar to the transmission assembly 1 of FIG. 4, the difference is that the movable member 12 of the transmission assembly 1 of FIG. 4 can expose most of the elastic member 15. In this embodiment, the elastic member 95 of the transmission assembly 9 can also be disposed inside the movable member 92. The cover 92a can be mounted on the movable member 92 and covers the elastic member 95. The elastic member 95 is protected by the movable member 92 and the cover 92a.

In summary, the transmission assembly of an embodiment of the present invention can be connected into a four-link structure by a fixed member, a movable member, a first link member and a second link member, and connected and transmitted by an elastic member The shaft and the components pivoted on the transmission shaft enable the transmission shaft to rotate the elastic member when there is no vibration or small amplitude vibration, thereby rotating the component connected to the elastic member, so that the movable member can move relative to the fixed member. When the transmission assembly is subjected to large-scale vibration, the large-scale vibration can be buffered by the elastic deformation of the elastic member, thereby avoiding damage to the components of the transmission assembly, thereby achieving the effect of shock absorption. Furthermore, since the elastic member directly contacts the transmission shaft, the number of components of the transmission assembly can be reduced, and the volume of the transmission assembly can be further reduced. In addition, the gap between the element provided by the elastic member and the pivot against which the elastic member abuts can also be reduced by the elastic member due to the tolerance.

Although the present invention is disclosed as the foregoing embodiments, it is not intended to limit the present invention. Without departing from the spirit and scope of the new model, all modifications and retouching are within the patent protection scope of the new model. For the protection scope defined by this new model, please refer to the attached patent application scope.

1, 1 ', 2, 3, 4, 5, 6, 7, 8, 9, ‧‧‧ transmission assembly
11, 21, 31, 41, 51, 61, 71, 81
12, 22, 32, 42, 52, 62, 72, 82, 92
13, 23, 33, 43, 53, 63, 73, 83 ‧‧‧ first link member
14, 24, 34, 44, 54, 64, 74, 84 ‧‧‧ second link member
15, 15 ', 25, 35, 45, 55, 65, 75, 85, 95
151‧‧‧Elastic Department
152‧‧‧Fixed Department
16, 26, 36, 46, 56, 66, 76, 86 ‧‧‧ flywheel components
17, 27, 37, 47, 57, 67, 77, 87
171‧‧‧The first connection piece
172‧‧‧Second connecting piece
173‧‧‧First guide wheel
174‧‧‧Second guide wheel
181, 281, 381, 481, 581, 681, 781, 881 ‧‧‧ first pivot
182, 182 ', 282, 382, 482, 582, 682, 782, 882
182a‧‧‧groove
182a'‧‧‧Perforation
183, 283, 383, 483, 583, 683, 783, 883
184, 284, 384, 484, 584, 684, 784, 884‧‧‧ pivot
19a, 29a, 39a, 49a, 59a, 69a, 79a, 89a
19b, 29b, 39b, 49b, 59b, 69b, 79b, 89b
191‧‧‧ Worm
192‧‧‧ Worm gear
92a‧‧‧cover

FIG. 1 is a schematic perspective view of a transmission assembly according to an embodiment of the present invention. FIG. 2 is a schematic perspective view of the transmission assembly of FIG. 1 from another perspective. 3 is a perspective exploded view of the transmission assembly of FIG. 2. 4 is a schematic side view of some elements of the transmission assembly of FIG. 3. 5 is a perspective exploded view of some elements of the transmission assembly of FIG. 4. 6 is an exploded schematic side view of some elements of the transmission assembly of FIG. 4. 7 is a schematic partial side view of some elements of the transmission assembly of another aspect of FIG. 5. 8 is a schematic diagram of a side view of a transmission assembly according to another embodiment of the present invention. 9 is a schematic diagram of a side view of a transmission assembly according to another embodiment of the present invention. FIG. 10 is a schematic side view of a transmission assembly according to another embodiment of the present invention. 11 is a schematic diagram of a side view of a transmission assembly according to another embodiment of the present invention. FIG. 12 is a schematic side view of a transmission assembly according to another embodiment of the present invention. 13 is a schematic diagram showing a side view of a transmission assembly according to another embodiment of the present invention. 14 is a schematic diagram of a side view of a transmission assembly according to another embodiment of the present invention. 15 is a schematic side view of a transmission assembly according to another embodiment of the present invention. 16 is a schematic side view of the transmission assembly of FIG. 15 from another perspective.

1‧‧‧ Transmission assembly

11‧‧‧Fixed member

12‧‧‧moving component

13‧‧‧The first link member

14‧‧‧Second link member

15‧‧‧Elastic member

16‧‧‧Flywheel components

17‧‧‧Chain guide member

181‧‧‧The first pivot

182‧‧‧The second pivot

183‧‧‧The third pivot

184‧‧‧Pivot

Claims (10)

A transmission assembly, including: a fixed member; a movable member; a first link member, pivoted on one of the fixed member with a first pivot, and pivoted on the movable member with a second pivot One place; a second link member, pivoted to another place of the fixed member with a third pivot, and pivoted to another place of the movable member with a fourth pivot; a drive member, connected And used to pivot one of the first pivot shaft, the second pivot shaft, the third pivot shaft, and the fourth pivot shaft to become a transmission shaft; and an elastic member disposed on the fixing member , One of the movable member, the first link member and the second link member, where the transmission shaft is pivotally arranged, and directly contacts the transmission shaft. The transmission assembly according to claim 1, further comprising a transmission member connected to the driving member and connected to the transmission shaft. The transmission assembly according to claim 2, wherein the transmission member includes a worm and a worm gear, the worm is disposed on the drive member, the worm gear is disposed on the transmission shaft, the worm is engaged with the worm gear, and the worm is used to pivot Turn the worm gear. The transmission assembly according to claim 1, further comprising a flywheel member pivotally disposed on the fixed member, and the first pivot shaft is closer to the flywheel member than the third pivot shaft. The transmission assembly according to claim 1, wherein the first pivot is the transmission shaft, and the elastic member is fixed to the fixing member or the first link member and directly contacts the first pivot. The transmission assembly according to claim 1, wherein the second pivot is the transmission shaft, and the elastic member is fixed to the movable member or the first link member and directly contacts the second pivot. The transmission assembly according to claim 1, wherein the third pivot shaft is the transmission shaft, and the elastic member is fixed to the fixed member or the second link member and directly contacts the third pivot shaft. The transmission assembly according to claim 1, wherein the fourth pivot shaft is the transmission shaft, and the elastic member is fixed to the movable member or the second link member and directly contacts the fourth pivot shaft. The transmission assembly according to claim 1, wherein the transmission shaft has a groove, and a part of the elastic member is located in the groove. The transmission assembly according to claim 1, wherein the transmission shaft has a perforation, and a part of the elastic member penetrates the perforation.