TWM646649U - Hub drive structure - Google Patents

Abstract

A hub driving structure includes: a ratchet device including first and second ratchet rings and first and second compression springs; the first and second ratchet rings are respectively provided with several ratchet blocks and several ratchet teeth The first and second ratchet rings are provided with a first and second outer diameter and a first and second convex ring edge, and the minimum inner diameter of the first and second compression springs is equal to or slightly larger than the first and second outer diameter. The first and second compression springs can be actuated by the first and second outer diameter limiting guides. One end of the first compression spring is stuck at the hub flange, the other end of the first compression spring is against the first flange edge, and the second compression spring is One end of the spring is stuck at the flange of the sleeve, and the other end of the second compression spring is against the edge of the second flange. Accordingly, it is not only easy to assemble, locate and replace, but also effectively improves the mutual disengagement and restoration of engagement between the first and second ratchet rings. The original meshing state is all in concentricity, which keeps the driving efficiency in the best and stable state.

Description

Hub drive structure

The present invention provides a technical field of bicycle hubs, in particular, it provides a hub driving structure, which is provided with a ratchet device that guides the inner diameters of the first and second compression springs by limiting the outer diameters of the first and second ratchet rings. The axial movement not only facilitates assembly, positioning and replacement, but also effectively improves the concentricity between the first and second ratchet rings in their mutual disengagement and return to meshing states, keeping the driving efficiency at the best and stable state.

Click, refer to Figures 1 and 2. The bicycle is mainly equipped with a hub between the rear wheel and the flywheel. There is a ratchet set 1 between the hub and the flywheel. By stepping on the transmission chain and flywheel, the power is transmitted to the bicycle through the ratchet. The hub drives the rear wheel to rotate, and the ratchet group 1 can convert reverse power into idling. The method is to provide a sleeve on one side of the hub, and there are two first and second ratchet rings 2 and 3 that can mesh with each other and a plurality of ratchets between the sleeve and the hub, and a first compression spring 4 can be used between them. and a second compression spring 5 to spring open or reset.

However, the first compression spring 4 and the second compression spring 5 respectively press the first and second ratchet rings 2 and 3 with unstable thrust, which requires considerable consideration of the contact surface and transmission force. variables, thereby producing its elasticity When the instability of the restoring force and the concentricity are poor, the transmission force will cause idling or other erroneous actions, and the riding will also be unstable and uncomfortable. What's more, it will easily cause the riding failure. Dangerous person.

Therefore, in view of the problems existing in the above-mentioned conventional structures, how to develop an innovative structure that is more ideal and practical to meet the ardent expectations of consumers is also the goal and direction that relevant industries must work hard to develop breakthroughs.

In view of this, the creator has many years of experience in the manufacturing, development and design of related products. After detailed design and careful evaluation based on the above goals, he finally arrived at a truly practical creation.

The main purpose of this creation is to provide a hub drive structure, which is provided with a ratchet device that guides the inner diameters of the first and second compression springs to move axially through the outer diameter limits of the first and second ratchet rings. It is not only easy to assemble, position and Replacement, and effectively improves the concentricity between the mutual disengagement and restoration of the meshing state between the first and second ratchet rings, so that the driving efficiency can be maintained in the best and stable state.

In order to achieve the above purpose, the invention provides a hub driving structure, which includes: a ratchet device including first and second ratchet rings and first and second compression springs. The first and second ratchet rings are respectively provided with There are several ratchet blocks and several ratchet parts meshing with each other. The first and second ratchet rings are provided with a first and second outer diameter and a first and second convex ring. The minimum inner diameter of the first and second compression springs is equal to or slightly smaller. Larger than the first and second outer diameters, the first and second compression springs can be guided by the first and second outer diameters. One end of the first compression spring is stuck on the hub flange. , the other end of the first compression spring is against the first flange edge, one end of the second compression spring is stuck at the sleeve flange, and the other end of the second compression spring is against the second flange edge. According to this, it is not only easy to assemble and position And replacement, and effectively improve the concentricity between the first and second ratchet rings to disengage from each other and return to the original meshing state, so that the driving efficiency can be maintained at the best and stable state.

Regarding the technology, means and effects used in this creation, a preferred embodiment is given below and explained in detail with diagrams. I believe that the above-mentioned purpose, structure and characteristics of this creation can be obtained through this in-depth and specific understanding. .

[Knowledge]

1: Ratchet set

2: First ratchet ring

3:Second ratchet ring

4: First compression spring

5: Second compression spring

[This creation]

10: Flower drum

11:End face

12:Flange

20: mandrel

30:Sleeve

31:Inside

32:Flange

40: Ratchet device

50: First ratchet ring

51:ratchet block

52:First flange rim

A1: first outer diameter

60:Second ratchet ring

61: Ratchet piece

62:Second flange rim

A2: Second outer diameter

70: First compression spring

71:One end

72:The other end

D1: minimum inner diameter

80: Second compression spring

81:One end

82:Other end

D2: minimum inner diameter

[Figure 1] is a three-dimensional schematic diagram of the meshing state of a conventional ratchet assembly.

[Figure 2] is a three-dimensional schematic diagram of the conventional ratchet assembly in its separated state.

[Figure 3] is a three-dimensional exploded view of the hub part of one embodiment of this invention.

[Figure 4] is a schematic plan view of a ratchet device according to one embodiment of this invention.

[Figure 5] is a three-dimensional exploded schematic diagram of the ratchet device according to one embodiment of the present invention.

[Figure 6] is a cross-sectional plan view of the ratchet device according to one embodiment of the present invention.

This creation provides the designer with a hub drive structure.

In order to enable your review committee to have a further understanding and understanding of the purpose, characteristics and functions of this creation, we hereby provide you with the implementation methods and diagrams Detailed description is as follows: Referring to Figures 3 to 6, this invention provides a hub driving structure, which includes: a hub 10, which is provided with a spindle 20 through the hub; a sleeve 30, the sleeve One end of 30 is fixedly connected to a flywheel of the bicycle; a ratchet device 40 is provided between the hub 10 and the sleeve 30; it is characterized in that: the ratchet device 40 includes a first ratchet ring 50 and a second ratchet ring 60. A first compression spring 70 and a second compression spring 80. The first and second ratchet rings 50 and 60 are respectively provided with a plurality of ratchet blocks 51 and a plurality of ratchet pieces 61 to engage with each other for transmission or to disengage from each other for idle rotation; The first ratchet ring 50 is provided with a first flange 52 on its periphery near the ratchet block 51 , and the first ratchet ring 50 is provided with a first outer diameter (A1) on its periphery; the second ratchet ring 60 is provided on its periphery. The ratchet member 61 is provided with a second flange 62 around its periphery, and the second ratchet ring 60 is provided with a second outer diameter (A2) around its periphery: the minimum inner diameter (D1) of the first and second compression springs 70 and 80 , D2) is equal to or slightly larger than the first and second outer diameters (A1, A2) and must be placed on it, so that the first and second compression springs 70 and 80 can limit the first and second outer diameters (A1, A2). A2) The axial limit guide is activated. One end 71 of the first compression spring 70 is against one end surface 11 of the hub 10 or stuck on a flange 12 of the hub 10 . The other end 72 of the first compression spring 70 is against the hub 10 . At the first flange edge 52 , one end 81 of the second compression spring 80 abuts an inner surface 31 of the sleeve 30 or is stuck on a flange 32 of the sleeve 30 , and the other end 82 of the second compression spring 80 abuts against an inner surface 31 of the sleeve 30 . At the second flange 62, the first and second ratchet rings 50 and 60 are separated from each other and returned to mesh by the stable thrust of the guided first and second compression springs 70 and 80. The original state is all in concentricity, which keeps the driving efficiency in the best and stable state.

From the above, it can be seen that the hub drive structure of this invention is indeed the first in the industry and meets the novelty requirements of a new model patent, and its comprehensive innovative design meets the progressive requirements of a new model patent. Through the first and second The outer diameter limit of the ratchet ring guides the inner diameter of the first and second compression springs to move axially, which is not only easy to assemble, locate and replace, but also effectively improves the concentricity between the first and second ratchet rings in their mutual disengagement and return to meshing states. , which keeps the driving efficiency in the best stable state and meets the better industrial utilization.

The foregoing article provides a detailed description of the preferred embodiments of the present invention and the technical features of the present invention; however, persons familiar with this technology may make changes and modifications to the present invention without departing from the spirit and principles of the present invention. Such changes and modifications shall be covered by the scope defined in the following patent application scope.

To sum up, this creation provides a hub drive structure, which has indeed achieved all the purposes of this creation. In addition, the spatial form of its combined structure has not been seen in similar products, nor has it been disclosed before application, and it complies with the provisions of the patent law. , Yuan filed an application in accordance with the law.

40: Ratchet device

50: First ratchet ring

52:First flange rim

60:Second ratchet ring

61: Ratchet piece

62:Second flange rim

70: First compression spring

80: Second compression spring

A1: first outer diameter

A2: Second outer diameter

Claims (4)

A hub driving structure, including: a hub, the hub is provided with a spindle through the pivot; a sleeve, one end of the sleeve is fixedly connected to a flywheel of the bicycle; a ratchet device is provided between the hub and the sleeve; a ratchet The device includes a first ratchet ring and a second ratchet ring. The first and second ratchet rings are respectively provided with a plurality of ratchet blocks and a plurality of ratchet parts that can engage with each other for transmission or disengage from each other for idling; the first ratchet A first convex ring is provided on the periphery of the ring near the ratchet block, and the periphery of the first ratchet ring is set to a first outer diameter, so that a first compression spring can be inserted; the second ratchet ring is near the ratchet tooth. A second flange is provided around the component; a second outer diameter is provided around the second ratchet ring, and a second compression spring can be inserted into the second ratchet ring. The hub drive structure of claim 1, wherein the minimum inner diameter of the first and second compression springs is equal to or slightly larger than the first and second outer diameters and is sleeved thereon. The hub driving structure of claim 2, wherein one end of the first compression spring is against one end surface of the hub, the other end of the first compression spring is against the first flange edge, and one end of the second compression spring is against The other end of the second compression spring is pressed against an inner surface of the sleeve, and the other end of the second compression spring is pressed against the edge of the second flange. The hub driving structure of claim 2, wherein one end of the first compression spring is stuck at a flange of the hub, the other end of the first compression spring is against the first flange edge, and the second compression spring One end of the second compression spring is pressed against a flange of the sleeve, and the other end of the second compression spring is pressed against the edge of the second flange.

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