A shock absorbing frame and bicycle

By designing a pivotal connection between the front and rear supports and the seat support in the bicycle frame, combined with a single elastic shock absorption component, shock absorption of the front and rear wheels is achieved, solving the problems of complex structure and high cost in existing technologies, and reducing the difficulty of riding.

CN117184304BActive Publication Date: 2026-05-05ZHANGJIAGANG CHUANJUN VEHICLE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHANGJIAGANG CHUANJUN VEHICLE IND CO LTD
Filing Date
2023-09-27
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing bicycle shock absorption mechanisms require two sets of shock absorption mechanisms, one for the front wheel and one for the rear wheel. This is complex, costly, and increases the difficulty of riding when applying shocks.

Method used

A shock-absorbing frame design is adopted, in which the front and rear brackets are connected to the seat bracket via a pivot, and the front end of the elastic shock absorber is rotatably connected to the seat bracket. Only one elastic shock absorber is needed to achieve shock absorption for both the front and rear wheels, and to provide forward thrust during shock absorption to reduce riding difficulty.

Benefits of technology

The simplified structure reduces costs, and the front and rear wheels are damped by a single elastic shock absorber, making riding easier.

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Abstract

This invention discloses a shock-absorbing bicycle frame and bicycle, including a front frame, a rear frame, a seat frame, and an elastic shock-absorbing component. The rear frame is movably connected to the rear end of the front frame via its front end, and the elastic shock-absorbing component is rotatably connected to the seat frame via its front end. The front frame and the rear frame are rotatably connected to the seat frame via a first pivot and a second pivot, respectively. At least one of the front frame and the rear frame is rotatably connected to the rear end of the elastic shock-absorbing component via a third pivot, which is located between the first pivot and the second pivot. The front end of the elastic shock-absorbing component is located in front of the line connecting the first pivot and the second pivot. When the elastic shock-absorbing component is in its initial position, neither the front wheel nor the rear wheel is lifted, and the third pivot is in its first position. When the elastic shock-absorbing component is in its compressed position, the front wheel and / or the rear wheel is lifted, and the third pivot moves forward from the first position to the second position. This invention provides a shock-absorbing bicycle frame and bicycle with a simple structure, which also reduces riding difficulty during shock absorption.
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Description

Technical Field

[0001] This invention relates to a shock-absorbing frame and a bicycle. Background Technology

[0002] To improve riding comfort, existing bicycles typically install shock absorbers under the seat. These shock absorbers are positioned vertically, applying an upward force to the seat during shock absorption. The disadvantages are: two sets of shock absorbers are needed, one for the front wheel and one for the rear wheel, resulting in a relatively complex and expensive structure. Furthermore, lifting the front or rear wheel during shock absorption can increase riding difficulty. Summary of the Invention

[0003] The purpose of this invention is to provide a shock-absorbing frame and bicycle that has a simple structure and can reduce the difficulty of riding while providing shock absorption.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A shock-absorbing bicycle frame, comprising:

[0006] Front bracket, used for mounting the front wheels and steering assembly;

[0007] A rear bracket for mounting the rear wheel, the rear bracket being movably connected to the rear end of the front bracket via its front end;

[0008] A seat bracket for mounting a seat and an elastic shock-absorbing assembly, the elastic shock-absorbing assembly being rotatably connected to the seat bracket via its front end;

[0009] The front support and the rear support are rotatably connected to the seat support via a first pivot and a second pivot, respectively, with the first pivot located above the second pivot;

[0010] Of the front bracket and the rear bracket, at least one is rotatably connected to the rear end of the elastic damping component via a third pivot, the third pivot being located between the first pivot and the second pivot, and the front end of the elastic damping component being located in front of the line connecting the first pivot and the second pivot;

[0011] The elastic damping component has an initial position and a compression position:

[0012] When the elastic damping component is in the initial position, neither the front wheel nor the rear wheel is lifted, and the third pivot is in the first position;

[0013] When the elastic damping component is in the compressed position, the front wheel and / or the rear wheel are lifted, and the third pivot moves forward from the first position to the second position.

[0014] Preferably, the rear end of the front bracket is bent downward to form a first bend, and the front end of the rear bracket is bent upward to form a second bend, wherein the first bend is movably connected to the upper end of the second bend via its lower end.

[0015] More preferably, at least one of the first bend and the second bend is rotatably connected to the rear end of the elastic damping assembly via the third pivot.

[0016] More preferably, when the front wheel is lifted, the first bent portion rotates forward about the first pivot; when the rear wheel is lifted, the second bent portion rotates forward about the second pivot.

[0017] Preferably, the seat bracket is arranged in the vertical direction, and the lower part of the seat bracket protrudes forward to form a forward protrusion. The elastic shock-absorbing component is rotatably connected to the forward protrusion through its front end.

[0018] Preferably, in both the front bracket and the rear bracket, one of them is provided with a first circular hole for the third pivot to pass through, and the other is provided with a first elongated hole for the third pivot to pass through.

[0019] Preferably, in both the front bracket and the rear bracket, one of them is provided with a second circular hole for being fitted through by the third pivot, and the two are movably connected by a fourth pivot. One of them is provided with a third circular hole for being fitted through by the fourth pivot, and the other is provided with a second elongated hole for being fitted through by the fourth pivot.

[0020] Preferably, the elastic expansion and contraction direction of the elastic damping component is set along the front-to-back horizontal direction.

[0021] More preferably, when the elastic damping component is in the initial position, the first position of the third pivot is located behind the line connecting the first pivot and the second pivot; when the elastic damping component is in the compression position, the second position of the third pivot is located in front of the line connecting the first pivot and the second pivot.

[0022] A bicycle comprising the aforementioned shock-absorbing frame.

[0023] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: The present invention provides a shock-absorbing frame and bicycle, which can realize front wheel shock absorption and rear wheel shock absorption by setting only one elastic shock absorption component. The structure is simple and the cost is relatively low. The elastic shock absorption component is connected to the seat frame through its front end. When the front wheel or the rear wheel is lifted, the elastic shock absorption component can be compressed forward by rotating the front frame or the rear frame. This not only realizes front wheel shock absorption or rear wheel shock absorption, but also provides a forward thrust to the seat frame through the elastic shock absorption component, thereby reducing the difficulty of riding. Attached Figure Description

[0024] Appendix Figure 1 This is a schematic diagram of the structure of the shock-absorbing frame according to a specific embodiment of the present invention;

[0025] Appendix Figure 2 This is an exploded view of a shock-absorbing vehicle frame according to a specific embodiment of the present invention.

[0026] Wherein: 1. Front bracket; 11. First bend; 12. First elongated hole; 2. Front wheel; 3. Steering assembly; 4. Rear bracket; 41. Second bend; 42. First round hole; 5. Rear wheel; 6. Seat bracket; 61. Forward protrusion; 7. Elastic shock absorption assembly; 8. First pivot; 9. Second pivot; 10. Third pivot. Detailed Implementation

[0027] The technical solution of the present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0032] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0034] See Figure 1-2 As shown, this embodiment provides a shock-absorbing vehicle frame, including a front bracket 1, a rear bracket 4, and a seat bracket 6. The front bracket 1 is used to mount the front wheel 2 and the steering assembly 3, the rear bracket 4 is used to mount the rear wheel 5, and the rear bracket 4 is movably connected to the rear end of the front bracket 1 via its front end. The seat bracket 6 is used to mount the seat and the elastic shock-absorbing assembly 7.

[0035] The aforementioned elastic shock-absorbing component 7 is rotatably connected to the seat bracket 6 via its front end. In this embodiment, the seat bracket 6 is inclined in the vertical direction, and the lower part of the seat bracket 6 protrudes forward to form a forward protrusion 61. The elastic shock-absorbing component 7 is rotatably connected to the forward protrusion 61 via its front end.

[0036] The front support 1 is connected to the seat support 6 via a first pivot 8, while the rear support 4 is rotatably connected to the seat support 6 via a second pivot 9. The first pivot 8 is located above the second pivot 9, and the two are parallel to each other and parallel to the left and right horizontal direction.

[0037] At least one of the front support 1 and the rear support 4 is rotatably connected to the rear end of the elastic damping assembly 7 via a third pivot 10. In this embodiment, the rear support 4 is provided with a first circular hole 42 for the third pivot 10 to pass through, and the front support 1 is provided with a first elongated hole 12 for the third pivot 10 to pass through. The third pivot 10 is parallel to the first pivot 8. With this arrangement, when the front support 1 and the rear support 4 rotate relative to the seat support 6, there is also relative movement between the front support 1 and the rear support 4.

[0038] In another embodiment, one of the front support 1 and the rear support 4 has a second circular hole for a third pivot 10 to pass through. The front support 1 and the rear support 4 are movably connected by a fourth pivot, which is parallel to the first pivot 8. One of the front support 1 and the rear support 4 has a third circular hole for a fourth pivot to pass through, while the other has a second elongated hole for a fourth pivot to pass through. With this arrangement, when the front support 1 and the rear support 4 rotate relative to the seat support 6, there is also relative movement between the front support 1 and the rear support 4.

[0039] The aforementioned third pivot 10 is located between the first pivot 8 and the second pivot 9. The front end of the elastic damping component 7 is located in front of the line connecting the first pivot 8 and the second pivot 9. The rotation axis of the front end of the elastic damping component 7 is parallel to the first pivot 8. The elastic damping component 7 has an initial position and a compressed position.

[0040] When the elastic damping component 7 is in its initial position, neither the front wheel 2 nor the rear wheel 5 is lifted, and the third pivot 10 is located behind the line connecting the first pivot 8 and the second pivot 9.

[0041] When the elastic damping component 7 is in the compressed position, the front wheel 2 and / or the rear wheel 5 are lifted, the third pivot 10 is located in front of the line connecting the first pivot 8 and the second pivot 9, and the elastic damping component 7 is compressed.

[0042] In this embodiment, the rear end of the front bracket 1 is bent downward to form a first bent portion 11, and the front end of the rear bracket 4 is bent upward to form a second bent portion 41. The first bent portion 11 is movably connected to the lower end of the first bent portion 11 and the upper end of the second bent portion 41. The first pivot 8 and the second pivot 9 are respectively inserted into the first bent portion 11 and the second bent portion 41. A first circular hole 42 is provided at the upper end of the second bent portion 41, and the first circular hole 42 is higher than the second pivot 9; a first elongated hole 12 is provided at the lower end of the first bent portion 11, and the first elongated hole 12 is lower than the first pivot 8.

[0043] When the front wheel 2 is lifted, the first bending part 11 rotates forward around the first pivot 8 to compress the elastic damping component 7 forward; when the rear wheel 5 is lifted, the second bending part 41 rotates forward around the second pivot 9 to compress the elastic damping component 7 forward.

[0044] In this embodiment, the elastic damping component 7 is set along the front-to-back horizontal direction. When the elastic damping component 7 is in the initial position and the compressed position respectively, the third pivot 10 has a first position located behind the line connecting the first pivot 8 and the second pivot 9, and a second position located in front of the line connecting the first pivot 8 and the second pivot 9. The midpoint of the line connecting the first position and the second position is located on the line connecting the first pivot 8 and the second pivot 9.

[0045] A bicycle comprising the aforementioned shock-absorbing frame.

[0046] The working process of this embodiment is described in detail below:

[0047] When the front wheel 2 encounters an obstacle, the front bracket 1 rotates clockwise to lift the front wheel 2, and compresses the elastic shock absorber 7 forward through the first bend 11, thus absorbing the shock of the front wheel 2 while giving the seat bracket 6 a forward thrust.

[0048] When the rear wheel 5 encounters an obstacle, the rear support 4 rotates counterclockwise to lift the rear wheel 5, and compresses the elastic shock absorber 7 forward through the second bend 41, thus absorbing the shock of the rear wheel 5 while giving the seat support 6 a forward thrust.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A shock-absorbing bicycle frame, characterized in that: include: Front bracket, used for mounting the front wheels and steering assembly; A rear bracket for mounting the rear wheel, the rear bracket being movably connected to the rear end of the front bracket via its front end; A seat bracket for mounting a seat and an elastic shock-absorbing assembly, the elastic shock-absorbing assembly being rotatably connected to the seat bracket via its front end; The front support and the rear support are rotatably connected to the seat support via a first pivot and a second pivot, respectively, with the first pivot located above the second pivot; Of the front bracket and the rear bracket, at least one is rotatably connected to the rear end of the elastic damping component via a third pivot, the third pivot being located between the first pivot and the second pivot, and the front end of the elastic damping component being located in front of the line connecting the first pivot and the second pivot; The elastic damping component has an initial position and a compression position: When the elastic damping component is in the initial position, neither the front wheel nor the rear wheel is lifted, and the third pivot is in the first position; When the elastic damping component is in the compressed position, the front wheel and / or the rear wheel are lifted, and the third pivot moves forward from the first position to the second position.

2. The shock-absorbing frame according to claim 1, characterized in that: The rear end of the front bracket is bent downward to form a first bend, and the front end of the rear bracket is bent upward to form a second bend. The first bend is movably connected to the upper end of the second bend through its lower end.

3. The shock-absorbing frame according to claim 2, characterized in that: At least one of the first bend and the second bend is rotatably connected to the rear end of the elastic damping assembly via the third pivot.

4. The shock-absorbing frame according to claim 2, characterized in that: When the front wheel is lifted, the first bent portion rotates forward about the first pivot axis; when the rear wheel is lifted, the second bent portion rotates forward about the second pivot axis.

5. The shock-absorbing frame according to claim 1, characterized in that: The seat bracket is arranged in the vertical direction, and the lower part of the seat bracket protrudes forward to form a forward protrusion. The elastic shock absorption component is rotatably connected to the forward protrusion through its front end.

6. The shock-absorbing frame according to claim 1, characterized in that: Of the front bracket and the rear bracket, one is provided with a first circular hole for the third pivot to pass through, and the other is provided with a first elongated hole for the third pivot to pass through.

7. The shock-absorbing frame according to claim 1, characterized in that: In both the front bracket and the rear bracket, one of them is provided with a second circular hole for the third pivot to pass through, and the two are movably connected by a fourth pivot. One of them is provided with a third circular hole for the fourth pivot to pass through, and the other is provided with a second elongated hole for the fourth pivot to pass through.

8. The shock-absorbing frame according to claim 1, characterized in that: The elastic damping component is set along the front-to-back horizontal direction.

9. The shock-absorbing frame according to claim 8, characterized in that: When the elastic damping component is in the initial position, the first position of the third pivot is located behind the line connecting the first pivot and the second pivot; when the elastic damping component is in the compression position, the second position of the third pivot is located in front of the line connecting the first pivot and the second pivot.

10. A bicycle, characterized in that, Includes the shock-absorbing frame as described in any one of claims 1-9.

Citation Information

Patent Citations

  • Damping frame and bicycle

    CN220905248U