Kick scooter shock absorbers

The kick scooter shock absorber with a frame connecting element, shock absorber shaft, and fork arm connecting block, combined with a rebound rubber, enhances damping performance and reduces weight and installation complexity.

DE202025105591U1Active Publication Date: 2026-01-08ZHEJIANG YULUN TECH CO LTD
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Patent Information

Application Number
DE202025105591
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-01-08
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

Conventional kick scooter shock absorbers are bulky, heavy, and have inadequate damping performance, leading to discomfort during longer rides and installation difficulties.

Method used

A kick scooter shock absorber design featuring a frame connecting element, shock absorber shaft, fixed cover, and fork arm connecting block, with a rebound rubber and interference fit between components, allowing for effective vibration damping and simplified installation.

Benefits of technology

The design provides optimal vibration damping, reduced weight, and simplified installation, addressing the shortcomings of conventional shock absorbers.

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Abstract

Kick scooter shock absorber comprising a frame connecting element (1), a shock absorber shaft (2), a fixed cover (6) and a fork arm connecting block (7), wherein the frame connecting element (1) is mounted on the shock absorber shaft (2), wherein a rebound rubber (5) is attached to the outer surface of the rigid central shaft (4) in the shock absorber shaft (2) and between the rigid central shaft (4) and the frame connecting element (1), wherein the fixed cover (6) secures the rigid central shaft (4) within the frame connecting element (1), wherein the connecting shaft (3) is connected from the shock absorber shaft (2) through the stop hole (61) of the fixed cover (6) to the fork arm connecting block (7), wherein the stop block (62) of the fixed cover (6) interacts with the stop notch (8) of the fork arm connecting block (7) to limit its position.
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Description

TECHNOLOGY AREA

[0001] The utility model relates to kick scooter technology, in particular to a kick scooter shock absorber. BACKGROUND

[0002] As a popular means of transportation, the comfort and safety of a kick scooter are crucial to the riding experience. The shock absorber acts as an important component in a kick scooter, as it effectively reduces vibrations and shocks caused by uneven road surfaces while riding, thus improving comfort and stability. However, conventional shock absorber technology for kick scooters has certain shortcomings. Some shock absorbers use spring or hydraulic systems, which, while providing some damping effect, often have complex designs, bulky dimensions, and considerable weight. This characteristic is clearly unsuitable for meeting the design requirements of lightweight kick scooters.Furthermore, the damping performance of such systems can prove inadequate, as they do not sufficiently absorb vibrations from uneven surfaces and therefore cause discomfort during longer rides. Some suspension systems are difficult to install, and their components are prone to damage from loosening or wear. This can shorten the scooter's lifespan and increase maintenance costs. Description of the usage pattern

[0003] The utility model is based on the objective of providing a kick scooter shock absorber comprising a frame connecting element, a shock absorber shaft, a fixed cover and a fork arm connecting block, wherein the frame connecting element is mounted on the shock absorber shaft, wherein a rebound rubber is attached to the outer surface of the rigid central shaft in the shock absorber shaft and between the rigid central shaft and the frame connecting element, wherein the fixed cover fixes the rigid central shaft within the frame connecting element, wherein the shock absorber shaft further comprises a connecting shaft which is connected to the fork arm connecting block through the stop hole of the fixed cover, wherein the stop block of the fixed cover interacts with the stop notch of the fork arm connecting block to limit its position.This design, combined with a clever fit between the shock absorber shaft and the rebound rubber, as well as the fixed cover with the fork arm connecting block, results in perfect vibration damping, an optimized structure, reduced weight, and simplified installation. This eliminates the disadvantages of conventional technology, namely insufficient vibration damping, complex arrangement, excessive weight, and installation difficulties.

[0004] To solve the problem, the present utility model demonstrates the following: A kick scooter shock absorber comprising a frame connecting element, a shock absorber shaft, a fixed cover and a fork arm connecting block, wherein the frame connecting element is mounted on the shock absorber shaft, wherein a rebound rubber is attached to the outer surface of the rigid central shaft in the shock absorber shaft and between the rigid central shaft and the frame connecting element, wherein the fixed cover fixes the rigid central shaft within the frame connecting element, wherein the connecting shaft is connected from the shock absorber shaft through the stop hole of the fixed cover to the fork arm connecting block, wherein the stop block of the fixed cover interacts with the stop notch of the fork arm connecting block to limit its position.

[0005] It can also be designed so that the connecting shaft has a specific profile that fits the coupling hole of the fork arm connecting block.

[0006] It can also be designed so that there is an interference fit between the outer circumference of the return rubber and the inner diameter of the frame connecting element, while the connecting shaft fits with the stop hole with a certain clearance.

[0007] This design, combined with the skillful fitting of the shock absorber shaft to the rebound damper and the fixed cover to the fork arm connecting block, results in perfect vibration damping, an optimized structure, reduced weight, and simplified installation. This eliminates the disadvantages of conventional technology, namely insufficient vibration damping, complex arrangement, excessive weight, and installation difficulties. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 shows a 3D view of the present utility model, Fig. Figure 2 shows an exploded view of the present utility model. Reference symbol list

[0008] Frame connecting element 1, shock absorber shaft 2, connecting shaft 3, rigid center shaft 4, return rubber 5, fixed cover 6, stop hole 61, stop block 62, fork arm connecting block 7, stop notch 8. DETAILED DESCRIPTION OF EXAMPLES OF EXECUTION

[0009] Further objectives, advantages, features and application possibilities of the utility model will become apparent from the following description of the exemplary embodiments based on the drawings.

[0010] The following description goes into numerous specific details to enable a comprehensive understanding of the present utility model. However, the utility model can also be implemented in other ways that differ from those described here. Industry experts can also make analogous extensions without deviating from the spirit of the utility model. In this context, the utility model is not limited to the specific embodiments disclosed below.

[0011] Furthermore, the present utility model is described in detail with reference to the accompanying drawings. For clarity, the cross-sectional views of various mechanisms may be shown enlarged, sometimes without regard to the general scale, when explaining the embodiments of the present utility model. Moreover, the marked elements serve only for illustration and should not be considered a specific limitation of the scope of protection of the present utility model. In addition, the actual manufacture is intended to include three-dimensional spatial dimensions, i.e., length, width, and depth.

[0012] In order to clarify the objectives, technical features and advantages of the present utility model, the embodiments of the present utility model are described in more detail below with reference to the attached drawings.

[0013] As from Fig. 1 and Fig.As can be seen in Figure 2, the scooter shock absorber according to the invention mainly comprises a frame connecting element 1, a shock absorber shaft 2, a fixed cover 6 and a fork arm connecting block 7. With this design, the shock absorber has an innovative design and excellent damping performance and is distinguished by its simple construction, low weight and easy installation.

[0014] As schematically shown, the kick scooter shock absorber comprises a frame connecting element 1, a shock absorber shaft 2, a fixed cover 6, and a fork arm connecting block 7. The frame connecting element 1 is mounted on the shock absorber shaft 2, and a rebound rubber 5 is attached to the outer surface of the rigid central shaft 4 within the shock absorber shaft 2, as well as between the rigid central shaft 4 and the frame connecting element 1. The rigid central shaft 4 is made of a rigid material and serves for support and force transmission. The aforementioned rebound rubber 5 is encased on the outer surface of the rigid central shaft 4 and therefore possesses excellent elasticity and rebound properties, enabling it to effectively absorb and dampen external shocks.

[0015] The frame connecting element 1 acts as a connecting element between the shock absorber and the scooter frame and includes a cavity for receiving the aforementioned shock absorber shaft 2. The shock absorber shaft 2 is mounted in the frame connecting element 1. A non-return rubber 5 is inserted between the rigid central shaft 4 and the frame connecting element 1, with an interference fit between the outer circumference of the non-return rubber and the inner diameter of the frame connecting element 1, which robustly secures the shock absorber shaft 2 within the frame connecting element 1.

[0016] The fixed cover 6 secures the rigid center shaft 4 within the frame connecting element 1. The connecting shaft 3 from the shock absorber shaft 2 is connected to the fork arm connecting block 7 through the stop hole 61 in the fixed cover 6 and forms a clearance fit with the stop hole 61, so that the connecting shaft 3 can rotate or move freely within the stop hole 61 to compensate for any displacements during the damping process.

[0017] To limit the position, the stop block 62 of the fixed cover 6 works together with the stop notch 8 of the fork arm connecting block 7 to limit the rotation range of the fork arm connecting block 7 and to prevent damage to the shock absorber due to excessive rotation.

[0018] It can further be provided that the fork arm connecting block 7 for connecting the shock absorber to the kick scooter is also provided with a coupling hole and a stop notch 8 for mating with the connecting shaft 3. The connecting shaft 3 is specifically profiled to fit with the coupling hole in the fork arm connecting block 7 and to ensure a positive connection between the two and thus effective force transmission. It can further be designed such that there is an interference fit between the outer circumference of the rebound rubber 5 and the inner diameter of the frame connecting element 1, while the connecting shaft 3 fits with the stop hole 61 with a certain clearance.

[0019] The operating principle of this utility model is as follows: When the scooter travels over an uneven road surface, the fork arm connecting block 7 is subjected to an impact force from the ground, which is transmitted via the connecting shaft 3 to the shock absorber shaft 2. Under the influence of this impact force, the rebound rubber 5 deforms elastically, thus absorbing and distributing the impact energy and reducing the vibrations transmitted to the scooter frame and the frame connecting element 1. Furthermore, thanks to the clearance fit between the connecting shaft 3 and the stop hole 61, the connecting shaft 3 can move freely within a certain range, which mitigates the impact force. During shock absorption, the stop block 62 of the fixed cover 6 interacts with the stop notch 8 in the fork arm connecting block 7, causing the fork arm connecting block 7 to move within a predetermined range of motion. This prevents excessive rotation or displacement and ensures the structural integrity of the shock absorber.

[0020] This design, combined with the skillful fitting of the shock absorber shaft with the rebound rubber and the fixed cover with the fork arm connecting block, results in perfect vibration damping, an optimized structure, reduced weight, and simplified installation. This eliminates the disadvantages of conventional technology, namely insufficient vibration damping, complex arrangement, excessive weight, and installation difficulties.

[0021] The present utility model is described in the preceding sections with reference to the embodiments mentioned. However, various improvements can be made and the components mentioned can be replaced by equivalents without altering the scope of the utility model. In particular, the features disclosed in the embodiments of the present utility model can be combined in any way, provided that no mechanical conflicts arise. The omission of detailed descriptions of these combinations is solely for the sake of brevity and resource conservation. In this context, the utility model is not limited to the specific embodiments disclosed herein but can be varied in many ways within the scope of the disclosure.

Claims

[1] Kick scooter shock absorber comprising a frame connecting element (1), a shock absorber shaft (2), a fixed cover (6) and a fork arm connecting block (7), wherein the frame connecting element (1) is mounted on the shock absorber shaft (2), wherein a rebound rubber (5) is attached to the outer surface of the rigid central shaft (4) in the shock absorber shaft (2) and between the rigid central shaft (4) and the frame connecting element (1), wherein the fixed cover (6) fixes the rigid central shaft (4) within the frame connecting element (1), wherein the connecting shaft (3) is connected from the shock absorber shaft (2) through the stop hole (61) of the fixed cover (6) to the fork arm connecting block (7), wherein the stop block (62) of the fixed cover (6) interacts with the stop notch (8) of the fork arm connecting block (7) to limit its position. [2] Kick scooter shock absorber according to claim 1, characterized by, that the connecting shaft (3) with a specific profile fits together with the coupling hole of the fork arm connecting block (7). [3] Kick scooter shock absorber according to claim 1, characterized by , that there is an interference fit between the outer circumference of the return rubber (5) and the inner diameter of the frame connecting element (1), while the connecting shaft (3) fits with the stop hole (61) with a certain clearance.