CN2594133Y

CN2594133Y - Bicycle frame made of composite materials

Info

Publication number: CN2594133Y
Application number: CN 03236343
Authority: CN
Inventors: 叶祯荣
Original assignee: JINXIANG INDUSTRY Co Ltd
Current assignee: JINXIANG INDUSTRY Co Ltd
Priority date: 2003-01-20
Filing date: 2003-01-20
Publication date: 2003-12-24
Anticipated expiration: 2013-01-20

Abstract

The utility model relates to a bicycle frame made of composite materials. The utility model is composed of a plurality of components which are mutually inserted to combine into a whole. The corresponding end surface of a cross position between the two mutually inserted components is formed with an opening, and resin penetrating fibre yarn is wound and stuck at the opening. The combined parts of the components of the bicycle frame can not generate cracks due to a shaking force which is generated by bicycle frame when met rugged road sections or other factors, and thus the quality of products is raised simultaneously when the variability of the bicycle frame is enhanced.

Description

The cycle frame of composite material

[technical field]

The utility model relates to a kind of cycle frame, refers to a kind of cycle frame of composite material especially.

[background technology]

Bicycle is used as existing one very permanent period of the instrument of riding instead of walk, the structure of Regular Bicycle 1 as shown in Figure 1, be above the front side of a vehicle frame 11, to connect to establish a steering hardware 12, the below then is provided with front fork 13, the front-wheel 14 and front fork 13 lower ends are pivoted, the rear of vehicle frame 11 trailing wheel 15 that then is pivoted, in addition, vehicle frame 11 back side top connect establishes a cushion 16, and one group of rotatable the stepping on of locating to be pivoted below vehicle frame 11 centres pulls 17, this group pedal 17 links with chain 18 and trailing wheel 15, thereby after stepping on pedal 17 rotations, can drive trailing wheel 15 and rotate through chain 18, rotate synchronously and drive front-wheel 14, advance to make bicycle.The vehicle frame 11 of aforementioned bicycle 1, it all is structure for integral type, and pursue to reduce the vehicle body total weight with the prerequisite that alleviates cyclist's burden under, often be to utilize the one-body molded cycle frame of making of composite material now, owing to be one-body molded, therefore its mould is huge, so not only make the manufacturing expense of mould high, and, when desire change vehicle, even only be the change of vehicle frame 11 parts, still necessary one group of new mould of remanufacturing, and to expend the high cost of huge mould again, form a meaningless waste.

Shortcoming for the vehicle frame that improves aforementioned integrated formed structure, someone develops knockdown vehicle frame, please cooperate shown in Fig. 2,3, this kind vehicle frame 2 is abutting ends that each body 21 2 side capitiform of order formation vehicle frame 2 become less external diameter, use plugging together, with the vehicle frame 2 that is combined as a whole in Multidirectional connector 22.By this, can make the mould miniaturization, to reduce the development cost of mould, simultaneously when desire changes the shape of certain of vehicle frame, because vehicle frame 2 is combination formings, and each element is to utilize independent small mould to make moulding, therefore only need with regard to institute's desire change place mould of reforming, and do not need to need entire die all to reform as one-body molded vehicle frame, knockdown by this design, can be under the less expense of cost, carry out the variation of vehicle easily, allow vehicle can have diversified characteristic, and knockdown at this point vehicle frame 2, its body 21 combines with Multidirectional connector 22, please cooperate shown in Figure 4, be with body 21 and Multidirectional connector 22 face of joints, form rough surface through sand-blast finish, smear thereon again with resin 3, and plugging together the back heating, promptly be combined as a whole after cooling, then through grinding, the operation of japanning following process, promptly make the vehicle frame finished product, this structure no doubt can reach the purpose of combination, but, smear resin 3 heat hardening cementation combinations at jointing end face, because resin 3 does not have intensity, and body 21 is minimum longitudinal slot with Multidirectional connector 22 jointing end faces, and resin 3 can not infiltrate body 21 and Multidirectional connector 22 inside again, and make in the longitudinal slot of this jointing end face only is resin after the simple sclerosis, do not have at resin 3 under the situation of intensity, when vehicle frame 2 suffers because of the shaking force that winnows with a dustpan in the mountain peak, road surface or other reasons produces, resin 3 in this longitudinal slot is easy to give birth to the phenomenon of be full of cracks, and only be under the situation of japanning at outside face, will form slight crack 31, and allow the customer think the bad of this vehicle frame, but actually, watch through dissecing, body 21 or Multidirectional connector 22 all do not have damage, and inboard long horizontal face of joint does not split, and still be a firm bonding state, intensity to vehicle frame there is no connection, but the slight crack 31 at japanning place, on customer's viewpoint, can think and damage, and can't accept the explanation of producer again, so that cause the puzzlement of a large amount of return of goods, so how at cost-cutting vehicle frame to be had under the variational prerequisite, crack performance can not take place real again is current problem extremely to be solved.

[utility model content]

The purpose of this utility model, be to be provided in a kind of cycle frame of composite material, make vehicle frame when being subjected to the mountain peak and winnowing with a dustpan the shaking force that highway section or other factors cause, junction of member can be because of shaking force produce slight crack, to improve the variational quality that improves product simultaneously of vehicle frame everywhere for it.

The utility model provides a kind of cycle frame of composite material, be to plug together mutually and be combined into one by most members, it is characterized in that: form an opening between the corresponding end face of the two member junctions that this plugs together mutually, the silvalin of infiltration resin is arranged in this opening part winding cementation.

The cycle frame of composite material of the present utility model, mainly be the two member engages ends that make vehicle frame, formation is the opening on inclined-plane, after smearing resin, opening part twines, then when the winding adhesive tape, (OPP) after the heating and pressurizing moulding with silvalin, resin can ooze to silvalin, make vehicle frame be subjected to the mountain peak shaking force that highway section or other factors cause of winnowing with a dustpan, abutting end slight crack can not occur, to promote the quality that improves product under the vehicle frame variability.

[description of drawings]

Fig. 1 is the block diagram of known bicycle.

Fig. 2 is the block diagram of known cycle frame.

Fig. 3 is the STRUCTURE DECOMPOSITION scheme drawing of known modular vehicle frame.

Fig. 4 A be known modular vehicle frame in conjunction with scheme drawing.Fig. 4 B is the local enlarged diagram of Fig. 4 A.

Fig. 5 is the STRUCTURE DECOMPOSITION scheme drawing of the utility model one preferred embodiment.

Fig. 6 is the combination scheme drawing of the utility model one preferred embodiment.

Fig. 7 is the scheme drawing that silvalin is twined in the utility model cycle frame junction.

Fig. 8 is the be sticked scheme drawing of adhesive tape of the utility model.

Fig. 9 is the scheme drawing after the pressurization of the utility model cycle frame, the heating.

Figure 10 is the scheme drawing after the utility model cycle frame grinds.

[specific embodiment]

Be the effect that can be easier to understand structure of the present utility model and can reach, cooperate now

Graphic explanation is as back:

At first see also Fig. 1, the utility model is the combined bicycle vehicle frame of composite material, be by most members 4,5 plug together mutually and are combined into one, member 4 herein, 5 are meant body and Multidirectional connector, this member 4 is the body with termination of a less external diameter, be combined as a whole in member 5 and can plug together, but the corresponding end face that member 4 and member 5 engage has the scalene cone 41 that an external diameter reduces gradually respectively, 51, and please cooperate shown in Figure 6, and being plugged together, member 4 and member 5 form an opening 6 between the corresponding end face of junction, back, certainly before plugging together, each face of joint of member 4 and member 5 is the processing of sandblast operation also, make and form a rough surface, reach at member 4 and member 5 joints and smear with resin, then, silvalin 7 with the composite material braiding is wound in opening 6 places, and convex slightly as making as shown in Figure 7, general as shown in Figure 8 then, in the side face of silvalin 7 and the two sides adhesive tape 8 (OPP) that is sticked, insert in the mould again and pressurize, the operation of heating, and make resin because of heat fused, but to make member 4 and member 5 cementations be combined as a whole, last as Fig. 9, shown in 10, behind the adhesive tape 8 (OPP) of tearing, can carry out grinding operation, making the junction is a smooth surface, so that the vehicle frame finished product is finished in the follow-up japanning operation of carrying out.

And effect of the present utility model is, because plugging together the back interface, member 4 and member 5 have an opening 6, and twine with silvalin 7 in this opening 6 places, simultaneously in pressurization, in the heating, most of resin can melt and ooze to silvalin 7, has high strength and make to fill up in the silvalin 7 at opening 6 places, and make member 4 and member 5 become a firm bonding state, winnow with a dustpan or the influence of the shaking force of other factors because of the mountain peak, road surface even then suffer, the phenomenon of known be full of cracks also can not take place, and unlikelyly at joint slight crack appears, the quality that can actv. significantly promotes vehicle frame, avoid the situation of returning goods, cause the increase of cost, can take vehicle frame again into account simultaneously and have various variability to reduce to return goods.

Claims

1, a kind of cycle frame of composite material, be to plug together mutually and be combined into one by most members, it is characterized in that: form an opening between the corresponding end face of the two member junctions that this plugs together mutually, the silvalin of infiltration resin is arranged in this opening part winding cementation.