TWM619010U - Hub drive structure - Google Patents

Abstract

This creation mainly provides a hub drive structure, which includes: a hub through which a mandrel passes; a ratchet wheel, including a sleeve seat, a first ratchet ring, a second ratchet ring and two elastic parts , Each of the first and second ratchet rings is sleeved on the sleeve seat, each of the first and second ratchet rings is provided with a plurality of ratchet teeth that can mesh with each other, and the two elastic pieces are respectively sleeved on the sleeve At both ends of the seat, the other ends of the two elastic members respectively abut against each of the first and second ratchet rings; a sleeve, one end of which is sleeved with a flywheel, and the ratchet is arranged between the hub and the sleeve; From the above-mentioned components, each of the first and second ratchet rings and the sleeve seat form an integrated ratchet structure. The concentricity after assembly is high, which makes assembly or replacement easy, and can improve the driving efficiency and the life of the parts. Excellent innovation and convenience and practicality.

Description

Hub drive structure

This creation is about a hub drive structure, especially an integrated ratchet structure, which has high concentricity after assembly, and is easy to assemble or replace, which can improve the efficiency of driving and the life of parts.

The hub driving structure of a bicycle is mainly based on a hub between the rear wheel and the flywheel. A ratchet is set between the hub and the flywheel. By stepping on the transmission chain and the flywheel, the ratchet transmits power to the hub and drives the rear wheel to rotate. The driving effect of driving the rear wheel to rotate.

A common ratchet structure is that a sleeve is provided on one side of the hub. A plurality of pawls and ratchet teeth are provided between the sleeve and the hub, and there is a rebound design between the two. The two ratchet teeth The side is provided with a tooth profile with a preset inclination. When the pawl presses and engages with the side of the ratchet, it can transmit power to the hub, that is, drive the sleeve and hub to rotate synchronously to drive the rear wheel to rotate; The pawl presses against the other side of the ratchet tooth and cooperates with the spring-back design to produce a de-tooth situation. The sleeve and the hub are idling and unable to rotate, which can prevent the wheel from turning in the opposite direction.

By the way, the drive structure of the conventional hub, such as the "hub" disclosed in the domestic new patent No. 100218595, includes: a spindle unit extending along an axis; a shell rotatably supported by the spindle unit , And having a peripheral wall surrounding the axis, the peripheral wall having a connecting end, a fixing groove arranged at the connecting end, and a receiving groove arranged outside the fixing groove; A sprocket seat, which is rotatably arranged on the spindle unit and located on one side of the housing, and has a linkage part corresponding to the accommodating groove and a sprocket mounting part arranged outside the linkage part; And a clutch unit, which is installed between the housing and the sprocket seat, and has a positioning member fixedly arranged in the fixing groove, a clutch member arranged on one side of the positioning member along the axis, and a clutch unit along the axis A detent member disposed on one side of the clutch member and fixed to the linkage portion and an elastic member disposed between the positioning member and the clutch member, the positioning member has a plurality of first engaging portions, and the clutch member has a plurality of A second engaging part that can be intermeshing with the first engaging parts and a plurality of detent parts opposite to the second mating parts, the detent member has a majority of detent parts corresponding to the detent parts, the chain The wheel base drives the detent part to rotate in a linked direction, and the detent parts are used to depress the detent parts, so that the clutch part can be operated from a position away from the positioning part to a position that engages with the positioning part. The occluding position can be linked to the rotation of the housing. The sprocket seat and the housing rotate relative to each other. The elastic force of the elastic member can convert the clutch member from the occluding position to a distant position, and the sprocket seat is idling.

In the structure disclosed above, the positioning member and the clutch member of the clutch unit can be engaged with each other by using a plurality of first and second meshing parts, the sprocket seat drives the detent member to rotate in a linkage direction, and the detent member can depress the clutch The part is engaged with the positioning part and can be linked to the rotation of the housing. The sprocket seat and the housing rotate relative to each other. The elastic force of the elastic part can be used to convert the clutch part from an engaged position to a distant position, and the sprocket seat is idling .

However, in the conventional hub drive structure, the driving parts are all composed of multiple parts, so the size requirements between the parts are high, and the concentricity is low after the multi-part assembly is set, which will shorten the life of the parts, and because of the concentricity of the drive Low power will reduce the efficiency of power conversion due to large gaps and tolerances between parts during transmission, and the overall structure needs to be improved.

This creation provides a hub drive structure, which includes: a hub, one end of which is provided with a set of connecting parts, the hub axially penetrates a mandrel, and a ratchet ring is connected in the set of connecting parts; a ratchet wheel includes a A sleeve seat, a first ratchet ring, a second ratchet ring, and two elastic members, each of the first and second ratchet rings is sleeved on the sleeve seat, each of the first and second ratchet rings The ratchet ring is provided with a plurality of ratchet teeth that can mesh with each other, and the two sides of each ratchet tooth are provided with a tooth shape with a preset inclination. The other end of the piece abuts against each of the first and second ratchet rings; a sleeve, one end of which is sleeved with a flywheel to drive the sleeve to rotate synchronously, and the other end of the sleeve is provided with a socket, The inner wall of the socket part is provided with a plurality of tooth grooves. After the ratchet wheel and the spindle are inserted into each other, the ratchet wheel is inserted into the assembly part, so that the first ratchet ring and the ratchet ring are mutually connected. Meshing, and after the sleeve and the mandrel pass through each other, the socket part and the ratchet wheel are passed through each other, and the second ratchet ring and the tooth groove are meshed with each other; The first and second ratchet rings and the sleeve seat form an integrated ratchet structure. The concentricity after assembly is high, which makes it easy to assemble or replace, which can improve the driving efficiency and the life of parts. It is indeed extremely innovative and convenient and practical. By.

The hub drive structure of this creation is provided with a ratchet wheel between the hub and the sleeve. The ratchet system is provided with a first and a second ratchet ring on the sleeve seat. Each of the first and second ratchet rings is The elastic member can be used to interlock the ratchet teeth between the two ratchet rings to drive, and the power can be transmitted to the hub, which drives the sleeve and hub to rotate synchronously to drive the rear wheel to rotate. On the contrary, each of the first and The second ratchet ring can cooperate with the rebound design to produce a detooth situation. The sleeve and the hub are idling and cannot rotate. Each of the first and second ratchet rings and the sleeve seat forms an integrated ratchet structure , And then assembled between the hub and the sleeve, the concentricity after assembly is high, which makes assembly or replacement easy, and can improve the driving efficiency and the life of the parts, so as to achieve excellent practicability and convenience; Outside the sleeve seat The ring sleeve is equipped with a kit, which can offset the gap between the ratchet ring and the sleeve seat; the elastic piece is sleeved between the two ratchet rings and the sleeve seat, so that the elasticity is more sufficient, and the ratchet ring Lightweight; a clamping portion is provided at both ends of the sleeve seat to provide the elastic member for clamping therein, so that the elastic member will not pop up after being compressed, and the elastic member can be more stable when the elastic member is compressed; the The sleeve seat can be the application of lubricating materials such as copper, plastic, etc.; the elastic member can be the application of compression springs or shrapnel.

10: Hub

11: Assembly Department

12: Mandrel

13: Ratchet ring

20: Ratchet

21: Socket seat

211: Card Design Department

22: Kit

23: The first ratchet ring

231: Ratchet

24: second ratchet ring

241: Ratchet

25: Elastic part

26: Elastic

261: Hook

30: sleeve

31: Socket

32: cogging

[Figure 1] is a perspective view of a preferred embodiment of this creation.

[Figure 2] is a three-dimensional exploded view of a preferred embodiment of this creation.

[Figure 3] is a three-dimensional exploded view of a preferred embodiment of the ratchet.

[Figure 4] is a combined cross-sectional view of a preferred embodiment of this creation.

[Figure 5] is an enlarged partial sectional view of a preferred embodiment of this creation.

[Figure 6] is a schematic diagram of the action of a preferred embodiment of this creation.

[Figure 7] is a schematic enlarged view of a preferred embodiment of this creation.

[Figure 8] is a three-dimensional exploded view of the ratchet wheel of the second embodiment of this creation.

[Figure 9] is an enlarged view of the partial combined cross-sectional view of the second embodiment of this creation.

First, please refer to Figures 1-7. The hub driving structure provided by this creation mainly includes: a hub 10, a ratchet 20, and a sleeve 30.

One end of the hub 10 is recessed with a connecting portion 11, the hub 10 axially penetrates a mandrel 12, and a ratchet ring 13 is connected in the connecting portion 11.

The ratchet wheel 20 includes a sleeve seat 21, a sleeve 22, a first ratchet ring 23, a second ratchet ring 24, and two elastic members 25. Both ends of the sleeve seat 21 are respectively provided with concave rings. A groove-shaped locking portion 211, the sleeve 22 is ring-shaped, the sleeve 22 is sleeved on the sleeve seat 21, and the first and second ratchet rings 23, 24 are sleeved on the sleeve 22 and On the sleeve seat 21, each of the first and second ratchet rings 23, 24 is provided with a plurality of ratchet teeth 231, 241 that can mesh with each other, and each of the ratchet teeth 231, 241 is provided with a predetermined inclination on both sides Tooth shape; two elastic members 25 are respectively sleeved on both ends of the sleeve seat 21, each of the elastic members 25 is a compression spring, one end of the elastic member 25 abuts one of the clamping portion 211, the other end abuts One end of the first ratchet ring 23 and the other elastic member 25 abuts against the other locking portion 211, and the other end abuts against the second ratchet ring 24, so that each of the first and second ratchet teeth The rings 23, 24 are positioned on the sleeve seat 21, and the first and second ratchet rings 23, 24 can be provided with a resilient design between each of the first and second ratchet teeth 23, 24 and The sleeve seat 21 constitutes an integrated structure.

One end of the sleeve 30 is sleeved with a flywheel to drive the sleeve 30 for synchronous rotation. The other end of the sleeve 30 is recessed with a sleeve portion 31, and the inner wall of the sleeve portion 31 is provided with a ring Plural cogging 32.

It is after the ratchet wheel 20 and the mandrel 12 are intertwined, and the ratchet wheel 20 Insert the connecting portion 11 so that the first ratchet ring 23 and the ratchet ring 13 are meshed with each other, and after the sleeve 30 and the spindle 12 are inserted into each other, the socket portion 31 and the ratchet 20 are inserted into each other. , And the second ratchet ring 24 and the tooth groove 32 are meshed with each other to form a hub drive structure. By stepping on the transmission chain and the flywheel, each of the first and second ratchet rings 23, 24 through the ratchet 20 The elastic member 25 can be used to drive the ratchet teeth between the two ratchet rings to engage with each other, which can transmit power to the hub 10, that is, drive the sleeve 30 and the hub 10 to rotate synchronously to drive the rear wheel to rotate; The first and second ratchet rings 23 and 24 can cooperate with the spring-back design to produce a tooth-out situation. The sleeve 30 and the hub 10 are idling and unable to rotate, which can prevent the wheel from turning in the opposite direction.

With the above components, a ratchet 20 is provided between the hub 10 and the sleeve 30. The ratchet 20 is attached to the sleeve seat 21 with first and second ratchet rings 23, 24, each of the first and second ratchets The elastic member 25 between the gear rings 23 and 24 enables the ratchet teeth between the two ratchet rings to be interlocked and driven, which can transmit power to the hub 10, that is, drive the sleeve 30 and the hub to rotate synchronously to drive the rear wheel On the contrary, each of the first and second ratchet rings 23, 24 can cooperate with the rebound design to produce a tooth-out situation, and the sleeve 30 and the hub 10 are idling and cannot rotate. Each of the first and second ratchet rings 23, 24 The two ratchet rings 23, 24 and the sleeve seat 21 form an integrated ratchet 20 structure, and then are assembled between the hub 10 and the sleeve 30. The concentricity after assembly is high, which makes assembly or replacement easy and can improve Drive efficiency and parts life, so the overall structure is extremely innovative and practical and convenient.

In order to further understand the structural characteristics of this creation, the use of technical means and the expected effects, the method of use of this creation is described as follows:

The assembly of this creation is to set the set 22 on the sleeve seat 21, and then put Each of the first and second ratchet rings 23, 24 is sleeved on the sleeve 22 and the sleeve seat 21, so that the ratchet teeth 231, 241 of each of the first and second ratchet rings 23, 24 mesh with each other, and the One end of an elastic member 25 abuts against one of the clamping portions 211, the other end abuts against the first ratchet ring 23, and one end of the other elastic member 25 abuts against the other clamping portion 211, and the other end abuts In the second ratchet ring 24, a ratchet 20 structure can be formed. Then, after the ratchet 20 and the spindle 12 are inserted into each other, the ratchet 20 is inserted into the assembling portion 11 to make the first ratchet The ring 23 and the ratchet ring 13 are meshed with each other, and after the sleeve 30 and the spindle 12 are passed through each other, the sleeve portion 31 and the ratchet 20 are passed through each other, and the second ratchet ring 24 and the tooth groove 32 Mutual meshing, that is, the assembly is completed.

For the use of this creation, please refer to Figures 4-7. By stepping on the transmission chain and the flywheel, the first and second ratchet rings 23 and 24 of the ratchet wheel 20 can be used to make the two ratchets through the elastic member 25. The ratchet teeth between the gear rings are interlocked and driven to transmit power to the hub 10, that is, drive the sleeve 30 and the hub to rotate synchronously to drive the rear wheel to rotate; otherwise, each of the first and second ratchet rings 23 , 24 can cooperate with the rebound design to produce a tooth-out situation, the sleeve 30 and the hub 10 are idling and unable to rotate, which can prevent the wheel from turning in the opposite direction.

Please refer to Figures 8-9, which are diagrams of the second embodiment of this creation, in which the elastic member 26 is a ring-shaped elastic piece with a plurality of hooks 261 protruding at both ends, so that the elastic member 26 is sleeved On the sleeve seat 21, and the hook portion 261 and the locking portion 211 are interlocked with each other, which can also provide the effect of elastic support and rebound design between the first and second ratchet rings 23 and 24 By.

In the hub drive structure of the present invention, a ratchet wheel 20 is provided between the hub 10 and the sleeve 30. The ratchet wheel 20 is connected to the sleeve seat 21 with first and second ratchet rings 23, 24. The first and second ratchet rings 23 and 24 can be driven by the ratchet teeth between the two ratchet rings through the elastic member 25, which can transmit power to the hub 10, that is, drive the sleeve 30 And the hub rotates synchronously to drive the rear wheel to rotate. On the contrary, each of the first and second ratchet rings 23, 24 can cooperate with the rebound design to produce a de-tooth situation, and the sleeve 30 and the hub 10 are idling. Without being able to rotate, each of the first and second ratchet rings 23, 24 and the sleeve seat 21 form an integrated ratchet 20 structure, which is then assembled between the hub 10 and the sleeve 30, and the concentricity after assembly High, easy to assemble or replace, and can improve the driving efficiency and parts life, and achieve excellent practicability and convenience; further, the sleeve seat 21 is covered with a kit 22 on the outer ring surface, by which the kit 22 is The setting can offset the gap between the ratchet ring and the sleeve seat 21.

The elastic member 25 is sleeved between the two ratchet rings and the sleeve seat 21, so that the elasticity is more sufficient, and the ratchet ring can be lightened; the two ends of the sleeve seat 21 are provided with clamping portions 211 to provide the elasticity The member 25 is clamped therein, so that the elastic member 25 will not pop out after being compressed, and the elastic member 25 can be more stable when the elastic member 25 is compressed.

The sleeve seat 21 can be used for lubricating materials such as copper and plastic; the elastic member 25 can be used for compressed springs or shrapnel.

In summary, the "hub drive structure" disclosed by this creation provides an integrated ratchet structure. The hub 10 and the sleeve 30 are provided with a ratchet 20, and the ratchet 20 is attached to the sleeve seat 21 with a first 1. The second ratchet ring 23, 24, each of the first and second ratchet ring 23, 24 has a resilient design with an elastic member 25, each of the first and second ratchet ring 23, 24 and the sleeve The cylinder base 21 forms an integrated ratchet 20 structure, which has high concentricity after assembly, which makes it easy to assemble or replace, and can improve the driving efficiency and the life of parts, so as to ensure the overall industrial practicability and innovative benefits, and its composition The structure has never been seen in books and periodicals or used publicly, sincerely It meets the requirements for a new patent application, and I sincerely ask Jun Bureau to approve the patent as soon as possible. I really pray for it.

For those who need to be clarified, the above are the specific embodiments of this creation and the technical principles used. If changes are made according to the concept of this creation, the resulting functional effects still do not exceed the spirit covered by the specification and drawings. All times should be combined with Chen Ming within the scope of this creation.

10: Hub

12: Mandrel

13: Ratchet ring

21: Socket seat

22: Kit

23: The first ratchet ring

231: Ratchet

24: second ratchet ring

241: Ratchet

25: Elastic part

30: sleeve

32: cogging

Claims (6)

A hub drive structure, which includes: A hub, one end of which is provided with a set of connecting parts, the hub axially penetrates a mandrel, and a ratchet ring is arranged in the set of connecting parts; A ratchet wheel includes a sleeve seat, a first ratchet ring, a second ratchet ring, and two elastic members. Each of the first and second ratchet rings is sleeved on the sleeve seat. The first and second ratchet rings are provided with a plurality of ratchet teeth that can mesh with each other, and the two sides of each ratchet tooth are provided with a tooth shape with a predetermined slope. The two elastic members are respectively sleeved on the two sleeve seats. The other ends of the two elastic members respectively abut against each of the first and second ratchet rings; A sleeve, one end of which is sleeved with a flywheel to drive the sleeve to rotate synchronously. The other end of the sleeve is provided with a socket. The inner wall of the socket is provided with a plurality of tooth grooves to connect the ratchet with After the mandrels pass through each other, the ratchet is inserted into the assembly part, the first ratchet ring and the ratchet ring are meshed with each other, and the sleeve and the mandrel are passed through each other to make the The sleeve part and the ratchet wheel are sleeved with each other, and the second ratchet ring and the tooth groove are meshed with each other. According to the hub driving structure of claim 1, it further sets a ring-shaped set on the sleeve seat, and then sets each of the first and second ratchet rings on the set and the sleeve seat . According to claim 1, the hub driving structure, wherein the two ends of the sleeve seat are respectively provided with a groove-shaped clamping part, and the two elastic members are respectively sleeved on the two ends of the sleeve seat, one of which is elastic One end of the member abuts against one of the locking parts, the other end abuts against the first ratchet ring, one end of the other elastic member abuts against the other locking part, and the other end abuts against the second ratchet ring . The hub driving structure according to claim 1, wherein the elastic member is an application of a compression spring. The hub driving structure according to claim 1, wherein the elastic member is an application of a ring-shaped elastic piece. According to the hub driving structure of claim 1, wherein the two ends of the sleeve seat are respectively provided with a groove-shaped clamping part, and the two elastic members are respectively sleeved on the two ends of the sleeve seat, the elastic member For the application of a ring-shaped elastic piece, a plurality of hooks protrude from both ends of the elastic piece. One end of the elastic piece abuts against one of the locking parts, and the other end of the hook abuts against the first ratchet ring, The hook part at one end of the other elastic member abuts against the other clamping part, and the hook part at the other end abuts against the second ratchet ring.

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