CN202574523U

CN202574523U - Head tube for composite material bicycle

Info

Publication number: CN202574523U
Application number: CN 201220233465
Authority: CN
Inventors: 罗伟宁
Original assignee: XIAMEN GREATKEY COMPOSITE TECH Co Ltd
Current assignee: XIAMEN GREATKEY COMPOSITE TECH Co Ltd
Priority date: 2012-05-15
Filing date: 2012-05-15
Publication date: 2012-12-05
Anticipated expiration: 2022-05-15

Abstract

The utility model discloses a head tube for a composite material bicycle. The head tube and a vehicle frame are integrally molded by using a composite material. The head tube is obtained by simultaneously putting a carbon fiber matched metal core and the vehicle frame into a mould cavity and molding through warming and pressurization; and the inner diameter of the head tube of the vehicle frame is formed after the metal core is taken out. The head tube and the vehicle frame are integrally molded by using the composite material, so that the weight is approximately reduced by 10 to 15g, the process is simplified, and the size yield is improved; and by the process for integrating the head tube and the vehicle frame, the production efficiency can be improved by about 10 percent.

Description

Multiple material bicycle head tube

Technical field

The utility model discloses a kind of multiple material bicycle head tube, divides by International Patent Classification (IPC) (IPC) to belong to multiple material bicycle accessories technical field.

Background technology

Bicycle develops into composite material by traditional iron or steel material ... carbon fiber; Require down satisfying bicycle intensity etc., especially huge variation has taken place in the weight of vehicle body, but owing to answer the characteristic of material carbon fibre material; At the multiple material initial stage of bicycle; Cycle frame also need cooperate aluminium plasmogamy part, adopts the ferrule pipe fittings like multiple material bicycle, and processing procedure is following:

A. design earlier lift one's head pipe fittings moulding and adopt aluminum products to make;

B. adopt reamer to ream after the cycle frame moulding, and guarantee that this empty footpath need cooperate reasonable the cooperation with the aluminum head pipe of having made;

C. adopt gummed that aluminum head pipe is cooperated with vehicle frame and be combined as a whole, need simultaneously to guarantee relative dimensions by relevant tool location.

Yet multiple material bicycle adopts the defective of ferrule pipe fittings following:

A. processing procedure is complicated, and size is difficult for guaranteeing that therefore, fraction defect is high;

B. aluminum head pipe fittings edge is prone to split lacquer, influences whole vehicle body outward appearance.

Summary of the invention

To the deficiency of prior art, the utility model provides a kind of rational in infrastructure, multiple material bicycle head tube of promoting intensity and yields.

For achieving the above object, the utility model is realized through following technical scheme:

A kind of multiple material bicycle head tube, itself and vehicle frame are by the composite material integral molding.

Further, described head pipe is by composite material and the simultaneously preparatory type of composite material frame and places moulding in the mold cavity.

Further, described head pipe is to place the moulding of mold cavity warming and pressurizing simultaneously by carbon fiber complexed metal inner core and vehicle frame, takes out the metal inner core and forms vehicle frame head bore.

The utility model is owing to owing to adopt composite material to make vehicle frame integrally formed with the head pipe, have following beneficial effect:

1. a Guan Fucaiization there is not meter that very big help is provided for lightweight;

2. this technology adopts a pipe fittings and vehicle frame integrated design, and weight alleviates 10～15g approximately, simplifies processing procedure and promotes the size yields;

3. the head pipe can promote production efficiency about 10% with the integrated processing procedure of vehicle frame;

4. the utility model is melted into a pipe fittings in the vehicle frame fully, thereby promotes intensity, improves a tube edge marginal slit lacquer.

Description of drawings

Fig. 1 is the utility model head pipe and the integrated scheme drawing of vehicle frame.

Fig. 2 is a metal inner core scheme drawing.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further:

Embodiment: see also Fig. 1, a kind of multiple material bicycle head tube, itself and vehicle frame 3 are by the composite material integral molding.Head pipe 1 is to place the moulding of mold cavity warming and pressurizing simultaneously by carbon fiber complexed metal inner core 2 and vehicle frame, takes out the metal inner core and forms vehicle frame head bore.

The utility model is that the aluminum head pipe fittings of former multiple material bicycle is realized multiple materialization, specifically is with this multiple material head pipe and frame integrated moulding, thereby simplifies processing procedure and promote quality and intensity.

The implementing procedure of the utility model:

The metal inner core that A. Zhi Zuo not meet a pipe fittings internal diameter size according to design;

B. be wrapped on this metal inner core carbon fiber ring is wrapped, be wrapped in simultaneously in the preparatory type with vehicle frame simultaneously;

C. then the completed preparatory type that contains the metal inner core is placed warming and pressurizing moulding in the forming die die cavity;

D. taking out the metal inner core forms according to design-calculated head bore.

The above record is merely the embodiment that utilizes this origination techniques content, anyly is familiar with modification, the variation that this creation of this art utilization is done, and all belongs to the claim of this creation opinion, and is not limited to embodiment announcement person.

Claims

1. answer the material bicycle head tube for one kind, it is characterized in that: this pipe and vehicle frame are by the composite material integral molding.

2. multiple material bicycle head tube according to claim 1 is characterized in that: described head pipe is by composite material and the simultaneously preparatory type of composite material frame and places moulding in the mold cavity.

3. multiple material bicycle head tube according to claim 2 is characterized in that: described head pipe is to place the moulding of mold cavity warming and pressurizing simultaneously by carbon fiber complexed metal inner core and vehicle frame, takes out the metal inner core and forms vehicle frame head bore.