CN202953121U

CN202953121U - Shock absorption bicycle frame

Info

Publication number: CN202953121U
Application number: CN 201220682351
Authority: CN
Inventors: 尤国品
Original assignee: Yuan Min An Enterprise Co Ltd
Current assignee: Yuan Min An Enterprise Co Ltd
Priority date: 2012-12-11
Filing date: 2012-12-11
Publication date: 2013-05-29
Anticipated expiration: 2022-12-11

Abstract

The utility model relates to a shock absorption bicycle frame which comprises a pipe body, wherein the pipe body is internally provided with an inner pipe and an outer pipe; at least one part of the inner pipe is sheathed by the outer pipe; no gap is available between the inner pipe and the outer pipe; the inner pipe is made of fiber reinforced thermosetting plastics; and the outer pipe is made of fiber reinforced thermoplastic plastics. A manufacturing method of the frame comprises the steps of: firstly, putting a piece of fiber fabric containing impregnated thermoplastic resin into a mould, and heating up to 230-250 DEG C to form the outer pipe; and then, inserting a piece of fiber fabric containing impregnated thermosetting resin into the outer pipe, and heating up to 140-160 DEG C to form the inner pipe in the outer pipe. Thus, shock absorption bicycle frame is light in weight and good in shock absorption effect.

Description

The shock-absorbing cycle frame

Technical field

The utility model relates to a kind of bicycle, particularly a kind of shock-absorbing cycle frame and method for making thereof, not only lightweight the and shock-absorbing usefulness of vehicle frame is good, and its recipe step simple, apply easily and product yield high.

Background technology

The existing cycle frame made from the carbon fiber reinforcement material, be all adopt the impregnation thermosetting resin as the carbon-fiber cloth of epoxy resin as raw material, be wound into the process heat hardening moulding in mould afterwards of pre-type, can form the vehicle frame of bicycle, due to this material lightweight, structural strength is high, extensively by the bicycle industry, adopted.

But the vehicle frame shock-absorbing effect made with this material is not good, necessary collocation spring or oil buffer, beginning can possess the shock-absorbing effect, only installing Shock absorber additional can make vehicle frame weight significantly increase, and the secondary action that reduces power transfer efficiency is arranged, therefore, how to produce not only cycle frame light but also that there is the shock-absorbing effect, become the problem that industry is is urgently researched and developed.

The utility model content

A purpose of the present utility model is to provide a kind of shock-absorbing cycle frame, not only lightweight and shock-absorbing effect is good.

Take off purpose for before reaching, the utility model provides a kind of shock-absorbing cycle frame, and it includes:

One body, have at least a portion that an inner tube and an outer tube sleeve are located at this inner tube, and seamless between inner tube, outer tube, and this inner tube is made by the fibrous reinforcement thermosetting plastic, and this outer tube is made by the fibrous reinforcement thermoplastic plastic.

Above-mentioned shock-absorbing cycle frame, wherein the thermoplastic plastic of this outer tube is formed by nylon, polyethylene, polypropylene, polystyrene, ABS resin or polyvinylchloride.

Above-mentioned shock-absorbing cycle frame, wherein this nylon is nylon 6, nylon 11, nylon 12 or nylon 66.

Above-mentioned shock-absorbing cycle frame, wherein the thermosetting plastic of this inner tube is formed by epoxy resin, acrylic resin, phenol resin or polyurethane.

Above-mentioned shock-absorbing cycle frame, wherein this outer tube has breach and does not form complete tubular.

The shock-absorbing cycle frame that the utility model provides, not only lightweight but also shock-absorbing effect is good.

Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.

The accompanying drawing explanation

The Shockproof bicycle frame of Fig. 1 the utility model one preferred embodiment;

The method for making schematic diagram of Fig. 2 to Fig. 5 the utility model one preferred embodiment;

The partial perspective view of Fig. 6 the utility model one preferred embodiment;

The partial perspective view of another preferred embodiment of Fig. 7 the present invention.

Wherein, Reference numeral

10 shock-absorbing cycle frames

13 times pipes of pipe on 11 head tubes 12

14 standpipe 15 Seat stay 16 Chain stays

19 pipes of 17 front fork 18 handles

Pre-type outer tube 20 outer tube 22 outer rims of 20'

23 inwall 201 breach

Pre-type inner tube 24 inner tube 26 outer rims of 24'

28 bodys

30 mould 32 inwalls

The specific embodiment

Below in conjunction with accompanying drawing, structural principle of the present utility model and principle of work are described in detail:

Refer to Fig. 1, the shock-absorbing cycle frame 10 that the utility model one preferred embodiment provides has a head tube 11, on one, pipe 12 is by this head tube 11 horizontal-extending and going out backward, managing 13 is once extended to the back lower place by this head tube 11, one standpipe 14 connections above pipe 12 are held after managing 13 with this time, one Seat stay 15 is extended back by these standpipe 14 epimeres, one Chain stay 16 is extended back and is connected with the rear end of this Seat stay 15 by these standpipe 14 hypomeres, one front fork 17 is arranged in this head tube 11 rotationally, leader 18 is located at this front fork 17 tops, and a pipe 19 is inserted in this standpipe 14, due to each position of this vehicle frame 10 all in a tubular form, therefore hereinafter above pipe 12 is described in detail for example.

The method for making of the shock-absorbing cycle frame that the utility model one preferred embodiment provides (maybe should above managing) includes following steps:

(a) as shown in Figure 2, the fiber weaving cloth of an impregnation thermoplastic base resin is wound into to a pre-type outer tube 20', wherein, this fiber can adopt and be not limited to carbon fiber, boron fiber, glass fibre or Ke Weila

Fiber, wherein take carbon fiber as good, this thermoplastic base resin can adopt and be not limited to nylon (Nylon), polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS resin or polyvinylchloride (PVC), wherein with nylon 6, nylon 11, nylon 12 or nylon 66, is advisable; Then, as shown in Figure 3, this pre-type outer tube 20' is inserted in a mould 30, be heated to 230 ℃ to 250 ℃ and the outer rim 22 that makes this pre-type outer tube 20' of exerting pressure in this pre-type outer tube 20' inside and stick to the inwall 32 in this mould 30, approximately, after 30 minutes, can make this pre-type outer tube 20' sclerosis form an outer tube 20.In this step, heating-up temperature is advisable with 240 ℃, and is to pour into higher than an atmospheric gas in this pre-type outer tube 20' and exerted pressure in this pre-type outer tube 20' inside.

(b) as shown in Figure 4, the fiber weaving cloth of one impregnation thermosetting resin is wound into to a pre-type inner tube 24', and this pre-type inner tube 24' inserts in this outer tube 20 hardened, for strengthening the binding force of this pre-type inner tube 24' and this outer tube 20, can apply the adhesion material in the inwall 23 of this pre-type inner tube 24' outer rim or this outer tube 20, this adhesion material can be epoxy resin, other liquid or other solids, utilize the adhesion material both more firmly can be combined, wherein, this fiber can adopt and be not limited to carbon fiber, boron fiber, glass fibre or Ke Weila

Fiber, only be advisable with carbon fiber, and this thermosetting resin can adopt and be not limited to epoxy resin, acrylic resin, phenol resin or polyurethane (PU), with epoxy resin, is advisable.

(c) last, as shown in Figure 5, this pre-type inner tube 24' is heated to 140 ℃ to 160 ℃ together with this outer tube 20 in this mould 30, only with 150 ℃, be advisable, and the outer rim 26 that makes this pre-type inner tube 24' of exerting pressure in this pre-type inner tube 24' inside sticks to the inwall 23 in this outer tube 20, after about 15-30 minute, can make this pre-type inner tube 24' sclerosis form an inner tube 24, make this inner tube 24 be bonded together in seamless mode with this outer tube 20 simultaneously, in this step, to pour into higher than an atmospheric gas in this pre-type inner tube 24' and to exerting pressure this pre-type inner tube 24' inside, and in the mould used in this step and step (a), mould can be same mould, also can be different moulds.

By this, can be made into the privileged site of cycle frame, as above manage 12, this privileged site and other positions are grouped together, can form complete cycle frame, with regard to structure, as shown in Figure 6, this shock-absorbing cycle frame 10 is to include a body 28, this body 28 has an inner tube 24, and one outer tube 20 be sheathed on this inner tube 24, and inner tube 24, seamless between outer tube 20, this inner tube 24 is to be made by the fibrous reinforcement thermosetting plastic, 20 of this outer tubes are made by the fibrous reinforcement thermoplastic plastic, and at least a portion that this outer tube 20 is coated on this inner tube 24 gets final product, and not necessarily this inner tube 24 is all coated.

Because inner tube 24 is fibrous reinforcement thermosetting plastic materials, its rigidity is high but elasticity (shock absorption) is low than outer tube than outer tube, and outer tube is fibrous reinforcement thermoplastic plastic material, its rigidity than inner tube low but elasticity (shock absorption) run well in, therefore, through actual test, find, cycle frame of the present utility model has the rigidity that meets user demand and the elasticity (or shock absorption) of certain degree, can effectively absorb the vibration that quite is passed to the rider because of the top, road surface, slow down rider's sense of discomfort, and it is slim and graceful that weight has the cycle frame with Shock absorber now, the ease of use of bicycle is effectively promoted, have much market potential.

Based on spirit of the present utility model, the utility model can be applied to any position of cycle frame, as head tube 11, upper pipe 12, lower pipe 13, standpipe 14, Seat stay 15, Chain stay 16, front fork 17, handle 18 and seat pipe 19, the y-bend pin of Seat stay 15 particularly, the y-bend pin of Chain stay 16, or the y-bend pin of front fork 17, outer tube 20 is coated on the area of this inner tube 24 and also can adjusts on demand, must be not complete by the complete coating of inner tube 24, even outer tube 20 has breach 201 and does not form complete tubular, as shown in Figure 7, also should be the utility model claim scope contains.

Certainly; the utility model also can have other various embodiments; in the situation that do not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1. a shock-absorbing cycle frame, is characterized in that, includes:

2. shock-absorbing cycle frame according to claim 1, is characterized in that, the thermoplastic plastic of this outer tube is formed by nylon, polyethylene, polypropylene, polystyrene, ABS resin or polyvinylchloride.

3. shock-absorbing cycle frame according to claim 2, is characterized in that, this nylon is nylon 6, nylon 11, nylon 12 or nylon 66.

4. shock-absorbing cycle frame according to claim 1, is characterized in that, the thermosetting plastic of this inner tube is formed by epoxy resin, acrylic resin, phenol resin or polyurethane.

5. shock-absorbing cycle frame according to claim 1, is characterized in that, this outer tube has breach and do not form complete tubular.