Carbon fiber integrated molded bicycle saddle and deformation driving synergistic method thereof

Abstract

The invention relates to the technical field of bicycle cushions, in particular to a carbon fiber integrated mould pressing type bicycle cushion and a deformation driving synergy method thereof, and the key points of the technical scheme are that the bicycle cushion is integrally formed by one-time mould pressing of a carbon fiber composite material; the left part and the right part of the cushion are formed into two half structures which are separated from each other in a mold at a time; a wide-surface bridge type arch-shaped supporting structure is arranged at the bottom of the seat cushion; through an integrated compression molding process, the bottom of the cushion adopts a bridge type arched sheet-shaped extension supporting structure, so that the stress contact surface is obviously increased, the bearing stability and durability are improved, and meanwhile, a left-right split structure is introduced to the tail part of the cushion, so that the two sides can independently generate elastic deformation under the action of a load, and the service life of the cushion is prolonged. By combining the elastic rebound effect of the bottom bridge structure, the driving force applied by the buttocks can be efficiently converted into the pedal driving force, energy feedback and driving synergy in the riding process are achieved, and the treading efficiency and the whole vehicle power output performance are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of bicycle cushions, and in particular to a carbon fiber integrally molded bicycle cushion and a deformation drive efficiency enhancement method thereof. Background Art

[0002] As a pivotal component in the cycling system, bicycle saddles facilitate force transmission and comfort between the human body and the vehicle. They not only need to firmly support the rider's entire body weight and cushion road vibrations, but should also incorporate ergonomic design to achieve separate responses to the left and right ischial tubes. During high-intensity riding, high-quality saddles can effectively transform pedaling force through reasonable elastic deformation and rebound characteristics, thereby enhancing pedaling efficiency and riding performance. Therefore, an innovative saddle structure that combines lightweight, integrated molding, high-strength support, and controllable deformation feedback is of great significance for improving long-distance riding comfort, enhancing power output, and extending component life.

[0003] However, existing saddle technology has significant shortcomings: first, most products are composed of three split structures combined by gluing or inlaying, with poor connection node strength, short service life and overall bulkiness. Second, the connection between the rear end of the saddle and the pedal is very rigid. The reaction force during pedaling will directly compress the buttocks and thighs, easily causing local pain and discomfort. In addition, its bottom support structure is often a small-area arch or single-point contact, with uneven support distribution, making it impossible to achieve balanced load bearing and effective shock absorption, resulting in a significant reduction in riding stability and comfort. To address the above problems, we propose a carbon fiber one-piece molded bicycle saddle and a deformation-driven efficiency enhancement method for it. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a carbon fiber one-piece molded bicycle seat and a deformation drive efficiency enhancement method thereof to solve the problems raised in the background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A carbon fiber integrally molded bicycle seat cushion, wherein the entire bicycle seat cushion is molded in one step from a carbon fiber composite material, and has an integrated, non-jointed structure; The left and right parts of the seat cushion are formed into two separate halves in a mold at one time, without the need for subsequent separation; A wide bridge-like arched support structure is provided at the bottom of the seat cushion to provide uniform load bearing and cushioning and shock absorption.

[0006] Preferably, the carbon fiber composite material is made of T800 carbon fiber prepreg, the prepreg resin content is 30% to 40%, and is composed of multiple layers of cross-ply.

[0007] Preferably, the seat cushion is manufactured by a one-time hot pressing process, with a molding temperature of 120° C. to 180° C., a molding pressure of 2 MPa to 5 MPa, and a holding time of 5 min to 15 min.

[0008] Preferably, the split tail structure is used to alleviate the difference in force between the left and right ischium regions, so that the left and right tails can elastically deform relatively independently, thereby evenly dispersing the force on the rider's ischium and further improving pedaling efficiency.

[0009] Preferably, the wide-surface bridge-type arched support structure generates elastic rebound during riding to provide additional cushioning and shock absorption and enhance overall comfort.

[0010] Preferably, the central area of ​​the seat surface of the seat cushion is a gradually concave curved surface from the front end to the rear end, and the depth of the concave decreases from the ischial support area to the edge, so as to disperse the contact pressure of the buttocks.

[0011] Preferably, both ends of the wide-surface bridge-type arched support structure are seamlessly integrated with the side edges of the seat cushion body, the arched cross-section is an arc, and is integrally formed from the same layer of carbon fiber composite material. The support width is consistent with the wide surface of the seat cushion bottom, and is used to evenly transfer the load to the frame and provide stable support.

[0012] The present invention also provides a deformation drive efficiency enhancement method, comprising the following steps: S1: Within the cadence range, the rider applies an alternating load to the saddle, causing the saddle to undergo a predetermined elastic deformation under the combined action of the split rear end and the bridge-type support structure. S2, when the load is released, the elastic rebound of the wide bridge-like arch structure at the bottom of the seat cushion is used to convert part of the energy generated by the elastic deformation into the driving force output of the pedals, thereby improving the riding efficiency.

[0013] In summary, the present invention mainly has the following beneficial effects: 1. The present invention adopts an integrated one-piece compression molding process, completely abandoning the traditional multi-segment splicing and gluing structure, and molds the carbon fiber composite material prepreg and epoxy resin into a complete seat cushion in the same mold at one time. This process avoids any subsequent assembly connection points, significantly reduces structural weaknesses, and makes the seat cushion lightweight while having high strength and excellent firmness. At the same time, a bridge-type arched sheet extension support structure is adopted as the bottom bearing surface. Compared with traditional single-point or small-area support, it not only increases the force contact surface, but also improves the overall stability and durability, and provides soft cushioning and shock absorption effects within the deformation range, effectively taking into account both support and comfort.

[0014] The present invention introduces a split tail structure design at the rear part of the seat cushion, so that the left and right halves can independently undergo elastic deformation under the action of load. Combined with the rebound characteristics of the bottom bridge-type arch support, the hip driving force applied by the rider is converted into pedal driving force, reducing the compression loss of the hips and thighs. The controllable deformation of the seat cushion structure within the load range during riding not only disperses the contact pressure, but also feeds back the deformation potential energy to the pedaling system through rebound, making the driving force output more efficient. Actual measurements show that it can improve pedaling efficiency and power output, effectively improving the overall riding performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the top structure of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention when viewed from above. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] The following examples are intended to illustrate the present invention but are not intended to limit the scope of protection of the present invention. The conditions in the examples may be further adjusted according to specific conditions. Simple improvements to the method of the present invention within the scope of the present invention are also within the scope of protection claimed in the present invention.

[0018] Example 1 refer to Figure 1 、 Figure 3 A carbon fiber integrally molded bicycle seat cushion, wherein the entire bicycle seat cushion is formed by one-time compression molding of a carbon fiber composite material, and is an integrated non-spliced ​​structure; The left and right parts of the seat cushion are formed into two separate halves in a mold at one time, without the need for subsequent separation; A wide bridge-like arched support structure is provided at the bottom of the seat cushion to provide uniform load bearing and cushioning and shock absorption.

[0019] The carbon fiber composite material is made of T800 carbon fiber prepreg, the prepreg resin content is 30% to 40%, and is composed of multiple layers of cross-ply.

[0020] The seat cushion is manufactured by a one-time hot pressing process, with a molding temperature of 120° C. to 180° C., a molding pressure of 2 MPa to 5 MPa, and a pressure holding time of 5 min to 15 min.

[0021] The split tail structure is used to alleviate the difference in force between the left and right ischium areas, allowing the left and right tails to elastically deform relatively independently, thereby evenly distributing the force on the rider's ischium and further improving pedaling efficiency.

[0022] The wide-surface bridge-type arch support structure generates elastic rebound when riding to provide additional cushioning and shock absorption and enhance overall comfort.

[0023] The central area of ​​the seat surface of the seat cushion is a gradually concave curved surface from the front end to the rear end, and the depth of the concave decreases from the ischial support area to the edge, which is used to disperse the contact pressure of the buttocks.

[0024] The two ends of the wide-surface bridge-type arched support structure are seamlessly integrated with the side edges of the seat cushion body. The arched cross-section is an arc and is integrally formed from the same layer of carbon fiber composite material. The support width is consistent with the wide surface of the seat cushion bottom, and is used to evenly transfer the load to the frame and provide stable support.

[0025] The present invention also provides a deformation drive efficiency enhancement method, comprising the following steps: S1: Within the cadence range, the rider applies an alternating load to the saddle, causing the saddle to undergo a predetermined elastic deformation under the combined action of the split rear end and the bridge-type support structure. S2, when the load is released, the elastic rebound of the wide bridge-like arch structure at the bottom of the seat cushion is used to convert part of the energy generated by the elastic deformation into the driving force output of the pedals, thereby improving the riding efficiency.

[0026] Working principle: Please refer to Figure 1-Figure 3 As shown, the carbon fiber integrally molded bicycle seat cushion of the present invention achieves the dual synergistic principle of drag reduction support and energy feedback during riding by combining structural design with material properties, as follows: The entire seat cushion is molded from T800 carbon fiber composite material in a single step, eliminating the weak points in traditional spliced ​​structures and making the entire cushion a continuous force-bearing whole. The bridge-like arch structure at the bottom provides wide and even support for the rider during riding, effectively dispersing local pressure, preventing collapse or deflection, and improving structural stability and fatigue resistance. The rear of the seat is formed during the molding process into two symmetrical halves with a certain gap. This structure allows the left and right halves to deform independently based on the actual differences in the rider's sit bones. Especially in dynamic riding situations, such as unilateral force application or rocking the bike left or right, the structural deformation adaptively adjusts the force, improving comfort and enhancing the coordination between the rider and the bike. The bridge-like arched structure at the bottom of the seat is integrally molded from the same composite material as the seat body, offering excellent elasticity. During pedaling, the structure deforms vertically under riding load and stores some elastic energy. This rebounds with the riding rhythm, providing drive compensation along the longitudinal direction of the assist pedal, thereby providing partial energy feedback and improving pedaling efficiency. The elastic deformation of the saddle during riding effectively absorbs the relative pressure between the buttocks and the saddle, reducing the sense of oppression and soft tissue stress concentration caused by the reaction force, thereby reducing human fatigue and improving riding comfort. At the same time, the energy storage and release mechanism during the deformation process is converted into auxiliary propulsion force, which helps to improve overall riding power output. In summary, through reasonable structural design and material engineering, the present invention enables the seat cushion to have the multifunctional integrated characteristics of load-bearing support, cushioning and shock absorption, dynamic response and drive feedback, realizing the transformation from a passive load-bearing component to an active performance-enhancing component, and showing superior performance advantages in long-term, high-intensity riding environments.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that, unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons having ordinary skills in the field to which the present invention belongs, and the words "include" or "comprise" and the like used in the present invention mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention shall be defined by the appended claims and their equivalents.

Claims

1. A carbon fiber integrally molded bicycle seat cushion, characterized in that: The bicycle seat is formed entirely of carbon fiber composite material by one-step compression molding, and is an integrated, non-jointed structure. The left and right parts of the seat cushion are formed into two separate halves in a mold at one time, without the need for subsequent separation; A wide bridge-like arched support structure is provided at the bottom of the seat cushion to provide uniform load bearing and cushioning and shock absorption.

2. The carbon fiber integrally molded bicycle seat according to claim 1, characterized in that: The carbon fiber composite material is made of T800 carbon fiber prepreg, the prepreg resin content is 30% to 40%, and is composed of multiple layers of cross-ply.

3. The carbon fiber integrally molded bicycle seat according to claim 1, characterized in that: The seat cushion is manufactured by a one-time hot pressing process, with a molding temperature of 120° C. to 180° C., a molding pressure of 2 MPa to 5 MPa, and a pressure holding time of 5 min to 15 min.

4. The carbon fiber integrally molded bicycle seat according to claim 1, characterized in that: The split tail structure is used to alleviate the difference in force between the left and right ischium areas, allowing the left and right tails to elastically deform relatively independently, thereby evenly distributing the force on the rider's ischium and further improving pedaling efficiency.

5. The carbon fiber integrally molded bicycle seat according to claim 1, characterized in that: The wide-surface bridge-type arch support structure generates elastic rebound when riding to provide additional cushioning and shock absorption and enhance overall comfort.

6. The carbon fiber integrally molded bicycle seat according to claim 1, characterized in that: The central area of ​​the seat surface of the seat cushion is a gradually concave curved surface from the front end to the rear end, and the depth of the concave decreases from the ischial support area to the edge, which is used to disperse the contact pressure of the buttocks.

7. The carbon fiber integrally molded bicycle seat according to claim 1, characterized in that: The two ends of the wide-surface bridge-type arched support structure are seamlessly integrated with the side edges of the seat cushion body. The arched cross-section is an arc and is integrally formed from the same layer of carbon fiber composite material. The support width is consistent with the wide surface of the seat cushion bottom, and is used to evenly transfer the load to the frame and provide stable support.

8. A deformation-driven efficiency enhancement method, based on the carbon fiber integrally molded bicycle seat according to any one of claims 1 to 7, characterized in that: The steps include: S1: Within the cadence range, the rider applies an alternating load to the saddle, causing the saddle to undergo a predetermined elastic deformation under the combined action of the split rear end and the bridge-type support structure. S2, when the load is released, the elastic rebound of the wide bridge-like arch structure at the bottom of the seat cushion is used to convert part of the energy generated by the elastic deformation into the driving force output of the pedals, thereby improving the riding efficiency.

Images