Bracket for S-shaped rear fork dropouts of electric bicycles

The S-shaped rear fork dropout bracket for electric bicycles addresses the instability and discomfort issues by redirecting shock forces, enhancing stability and comfort through its unique mounting design, ensuring safety and efficiency.

JP3249574UActive Publication Date: 2024-12-20BIOPOWER (XIAMEN) NEW ENERGY CO LTD
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Patent Information

Application Number
JP2024003533U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Priority Date
2023-10-25
Filing Date
2024-10-25
Publication Date
2024-12-20
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

Conventional small electric bicycles lack effective shock absorption due to short shock absorber strokes and unstable mounting, leading to discomfort and instability during riding.

Method used

An S-shaped rear fork dropout bracket with oppositely disposed bracket bodies and inclined straight arm support rods, allowing the lateral shock absorber to be mounted with one end lower and one end higher, generating a forward force during shock absorption, thus eliminating the need for a long operating stroke and enhancing stability and comfort.

Benefits of technology

The S-shaped bracket design provides improved shock absorption and stability by redirecting repulsive forces, ensuring the bicycle remains stable and safe, even over bumps, while maintaining comfort and reducing energy consumption.

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Abstract

The company provides a bracket for S-shaped rear fork dropouts of electric bicycles. [Solution] A bracket for an S-shaped rear fork dropout of an electric bicycle includes two bracket bodies arranged opposite each other, each bracket body including an inclined straight arm support rod 1 and an S-shaped bracket rod 2, the higher end of the straight arm support rod is connected to the bracket rod 2, the straight arm support rod and the bracket rod 2 form an "I" shape, and a connecting component is fixedly connected between the two straight arm support rods.
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Description

[Technical field]

[0001] The present invention relates to the technical field of brackets for electric bicycles, and more particularly to a bracket for S-shaped rear fork dropouts of electric bicycles. [Background technology]

[0002] With the development of society, traffic congestion is becoming more and more severe, and a series of electric bicycles that are light, small and easy to carry are gaining popularity. Traditional small electric bicycles do not have a shock absorbing design, which makes the ride uncomfortable, or the short shock absorber is ineffective, making it difficult to enjoy riding an electric bicycle, which brings inconvenience to consumers. The physical structure limitations and technical shortcomings caused by traditional design defects have not yet been resolved.

[0003] The main points are as follows:

[0004] (1) The limitation of physical structure refers to the fact that the operating stroke of a short shock absorber is limited to 15 to 18 mm. As a result, due to the small size of small cars, shock absorbers with long strokes cannot be installed on them, and the shock absorption effect is poor due to the short stroke.

[0005] (2) Since the shock absorber must be installed with an upward pressure, when the e-bike goes over a speed bump and is pushed down to its limit, the return force of the spring will become an upward repulsive force, making the e-bike shake and unstable, resulting in greater resistance and higher energy consumption. Summary of the Invention [Problem to be solved by the invention]

[0006] The purpose of this invention is to provide a bracket for S-shaped rear fork dropouts of an electric bicycle, which can provide a solution to the shortcomings of the prior art. The lateral shock absorber can be installed so that one end closer to the front end of the vehicle is low and the other end closer to the rear end of the vehicle is high, allowing the lateral shock absorber to play the role of a soft tail. Since a forward force is generated during shock absorption, it does not need to be pressed upwards when installed, and the operating stroke of the shock absorber does not need to be very long. In addition, the short shock absorber also has a good shock absorption effect, is more comfortable, and makes the electric bicycle more stable and safer. [Means for solving the problem]

[0007] The present invention adopts the following technical solutions:

[0008] An embodiment of the present application provides a bracket for S-shaped rear fork dropouts of an electric bicycle, which includes two bracket bodies arranged opposite each other, each bracket body including an inclined straight-arm support rod and an S-shaped bracket rod, a higher end of the straight-arm support rod is connected to the bracket rod, the straight-arm support rod and the bracket rod form an "I" shape, and a connection component is fixedly connected between the two straight-arm support rods.

[0009] Furthermore, in some embodiments of the present invention, the lower end of the straight arm support rod is provided with an axle mounting groove.

[0010] Furthermore, in some embodiments of the present invention, one of the straight arm support rods is provided with a brake mounting hole.

[0011] Furthermore, in some embodiments of the present invention, the upper end of the bracket rod is provided with a mounting hole for a lateral shock absorber.

[0012] Furthermore, in some embodiments of the present invention, the lower end of the bracket rod is provided with a hole for the rotation shaft of the rear fork.

[0013] Furthermore, in some embodiments of the present invention, the above-mentioned connecting component includes a connecting rod, one end of the connecting rod is fixedly connected to one of the straight-arm support rods, and the other end of the connecting rod is fixedly connected to the other of the straight-arm support rods.

[0014] Furthermore, in some embodiments of the present invention, a mounting sleeve is provided between the above-mentioned connecting rod and the straight-arm support rod, the mounting sleeve is fixed to the straight-arm support rod, and the end of the connecting rod is fitted into the mounting sleeve and fixedly connected to the mounting sleeve. Effect of the Invention

[0015] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0016] An embodiment of the present invention provides a bracket for S-shaped rear fork dropouts of an electric bicycle, which includes two bracket bodies arranged opposite to each other, each bracket body includes a tilted straight-arm support rod and an S-shaped bracket rod, a higher end of the straight-arm support rod is connected to the bracket rod, the straight-arm support rod and the bracket rod form an "S" shape, and a connecting component is fixedly connected between the two straight-arm support rods.

[0017] The lateral shock absorber can be installed so that one end closer to the front end of the vehicle is low and one end closer to the rear end of the vehicle is high, so that the lateral shock absorber can play the role of a soft tail. Since a forward force is generated during shock absorption, it does not need to be pressed upwards when installed, and the operating stroke of the lateral shock absorber does not need to be very long. In addition, the short shock absorber also has a good shock absorption effect, is more comfortable, and makes the electric bicycle more stable and safe. [Brief description of the drawings]

[0018] In order to more clearly explain the technical solutions of the embodiments of the present invention, the drawings that need to be used in the embodiments are briefly introduced below. The following drawings only illustrate some embodiments of the present invention, and therefore should not be regarded as limiting the scope, and it is understood that those skilled in the art can obtain other related drawings based on these drawings without creative efforts. [Figure 1] 1 is a schematic structural diagram of a bracket for an S-shaped rear fork dropout of an electric bicycle provided in accordance with an embodiment of the present invention; [Diagram 2] 1 is a front view of an S-shaped rear fork hook bracket for an electric bicycle provided by an embodiment of the present invention; FIG. [Diagram 3] 4 is a partial cross-sectional view of a location of a connection component provided by an embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention, as generally described and illustrated in the accompanying drawings, may be arranged and designed in a variety of different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention, provided in the accompanying drawings, is not intended to limit the scope of the claimed invention, but rather to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are included in the scope of protection of the present invention.

[0021] It should be noted that in the following figures, like reference numbers and letters represent like items, so that once an item is defined in one figure, further definition and explanation is not required in subsequent figures.

[0022] In the description of the embodiments of the present invention, the orientations and positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" are based on the orientations and positional relationships shown in the drawings or the orientations and positional relationships in which the product of the present invention is usually placed when used. This is only for the purpose of explaining and simplifying the description of the present invention, and does not 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 cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are used only to distinguish the description, and are not to be understood as indicating or implying relative importance.

[0023] Additionally, when terms such as "horizontal" and "vertical" are used, it does not mean that the member needs to be perfectly horizontal or vertical, but rather that it may be slightly tilted. For example, "horizontal" only means that the direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly tilted.

[0024] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "arrangement" and "connection" should be understood in a broad sense, for example, they may be fixed connection, detachable connection or integral connection, mechanical connection, electrical connection, direct connection, indirect connection via an intermediate medium, internal communication between two elements, etc. Those skilled in the art can understand the specific meaning of the above terms in the present invention on a case-by-case basis. EXAMPLES

[0025] 1 to 3, this embodiment provides a bracket for S-shaped rear fork dropouts of an electric bicycle, which includes two bracket bodies arranged opposite each other, each bracket body includes a straight arm support rod 1 arranged at an angle and an S-shaped bracket rod 2, a higher end of the straight arm support rod 1 is connected to the bracket rod 2, the straight arm support rod 1 and the bracket rod 2 form an "IN" shape, and a connection component for fixing the two bracket bodies is fixedly connected between the two straight arm support rods 1.

[0026] The lower end of the straight arm support rod 1 of this embodiment is provided with an axle mounting groove 3 for mounting a rear axle of an electric bicycle.

[0027] In this embodiment, a brake mounting hole 4 for mounting a brake is provided on one side of the straight arm support rod 1. In this embodiment, a rear fork rotating shaft hole 6 for mounting the rotating shaft of a foot pedal is provided on the lower end of the bracket rod 2.

[0028] In actual use, the upper end of the bracket rod 2 is provided with a horizontal shock absorber mounting hole 5, through which one end of the damping shock absorber and the upper end of the bracket rod 2 are attached via a pin. When installed, the end of the damping shock absorber that is attached to the brake mounting hole 4 is higher, and the other end of the damping shock absorber is closer to the front end of the car and is lower in height, thus installing the damping shock absorber so that the end closer to the front end of the car is lower and the end closer to the rear end of the car is higher. The main features of the S-shaped bracket rod 2 are as follows: S is actually a reverse combination of two Cs, and when the rear fork bracket body is pressed down, one C is pushed forward, which is because the direction of the force is not upward, in this case, in the prior art, the chain of the electric bicycle will be lengthened and will come off, but the reverse C is opened, which at the same time compensates for the angle, keeps the axis position always in the center position, and prevents the chain from being pulled or falling off.

[0029] The operating principle of the S-shaped rear fork dropout bracket of the present application is to change the direction of force, so that the lateral shock absorber supporting the vehicle body is not installed by pushing diagonally upwards, so that when the vehicle passes through a speed bump and is pushed down beyond the limit, the repulsive force pushes forward, so that the vehicle is more stable, safe and energy-saving. In addition, the operating stroke of the lateral shock absorber does not need to be so long, and the front end of the lateral shock absorber can be lowered and the rear end raised, so that the soft tail effect of the lateral shock absorber can be obtained, and it also has an excellent effect as a short shock absorber, improving comfort.

[0030] Another example is that the disadvantage of installing the shock absorber by pressing it upwards is that the tire is lowered by 2 cm, and according to the principle ratio, the stroke of the shock absorber is shortened by 2 cm. Short shock absorbers often have insufficient stroke, resulting in poor shock absorption effect.

[0031] The lateral shock absorber of the present application is designed with a low front and high rear, so that when the tire is lowered by 2 cm, the stroke of the lateral shock absorber only moves 0.5 cm, so the working stroke does not need to be so long, making up for the shortcomings of short shock absorbers. The S-shaped rear fork dropout bracket design has a low front end and a high rear end, so the lateral shock absorber has a soft tail and will not flip over even if it is pushed down to the extreme, and can be applied to the four-wheel independent suspension of bicycles, mopeds, motorcycles, scooters, and automobiles.

[0032] 1-3, in some embodiments of the present invention, the above-mentioned connection component includes a connecting rod 7, one end of the connecting rod 7 is fixedly connected to one of the straight-arm support rods 1, and the other end of the connecting rod 7 is fixedly connected to the other of the straight-arm support rods 1. A mounting sleeve 8 is provided between the connecting rod 7 and the straight-arm support rod 1, and the mounting sleeve 8 is fixed to the straight-arm support rod 1, and the end of the connecting rod 7 is fitted into the mounting sleeve 8 and fixedly connected to the mounting sleeve 8. This makes it easy to fix and connect the two straight-arm support rods 1 together through the connecting rod 7, and the provision of the mounting sleeve 8 improves the stability and structural strength of the connection.

[0033] The above are merely preferred embodiments of the present invention, and are not intended to limit the present invention. It is apparent to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be embodied in other specific forms without departing from the spirit or essential characteristics of the present application.

[0034] The examples are therefore to be considered in all respects as illustrative and not limiting, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes that come within the meaning and range of equivalent elements of the claims are therefore intended to be embraced therein.

[0035] Any reference signs in a claim shall not be construed as limiting the scope of that claim.

[0036] Those skilled in the art may make various modifications and variations to the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall fall within the scope of protection of the present invention. [Explanation of symbols]

[0037] 1 Straight arm support rod 2 Bracket Rod 3 Axle mounting groove 4 Brake mounting holes 5 Lateral shock absorber mounting holes 6 Rear fork pivot hole 7 Connecting Rod 8 Mounting sleeve

Claims

1. A bracket for an S-shaped rear fork dropout of an electric bicycle, comprising: two bracket bodies arranged opposite to each other, each bracket body including an inclined straight-arm support rod and an S-shaped bracket rod, a higher end of the straight-arm support rod being connected to the bracket rod, the straight-arm support rod and the bracket rod forming an "L" shape, and a connection component being fixedly connected between the two straight-arm support rods.

2. 2. The bracket for an S-shaped rear fork dropout of an electric bicycle as claimed in claim 1, wherein the lower end of the straight arm support rod is provided with an axle mounting groove.

3. 2. The bracket for an S-shaped rear fork dropout of an electric bicycle according to claim 1, wherein one of the straight arm support rods is provided with a brake mounting hole.

4. 2. The bracket for an S-shaped rear fork dropout of an electric bicycle as claimed in claim 1, wherein the upper end of the bracket rod is provided with a mounting hole for a lateral shock absorber.

5. 2. The bracket for an S-shaped rear fork dropout of an electric bicycle according to claim 1, wherein a hole for a rotation shaft of the rear fork is provided at a lower end of the bracket rod.

6. 2. The bracket for S-shaped rear fork dropouts of an electric bicycle as claimed in claim 1, characterized in that the connecting component includes a connecting rod, one end of the connecting rod is fixedly connected to one of the straight arm support rods, and the other end of the connecting rod is fixedly connected to the other of the straight arm support rods.

7. 7. The bracket for an S-shaped rear fork dropout of an electric bicycle as claimed in claim 6, characterized in that a mounting sleeve is provided between the connecting rod and the straight arm support rod, the mounting sleeve is fixed to the straight arm support rod, and an end of the connecting rod is fitted into the mounting sleeve and fixedly connected to the mounting sleeve.