CN103241325A

CN103241325A - Front fork

Info

Publication number: CN103241325A
Application number: CN2013101703211A
Authority: CN
Inventors: 王冲
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-10
Filing date: 2013-05-10
Publication date: 2013-08-14
Also published as: TW201442909A

Abstract

The invention discloses a front fork which comprises a left fork leg and a right fork leg. The upper ends of the left fork leg and the right fork leg extend oppositely to form a left front fork shoulder and a right front fork shoulder, the left front fork shoulder and the left fork leg are molded integrally to form a left fork, the right front fork shoulder and the right fork leg are molded integrally to from a right fork, the left fork and the right fork are symmetrical, grooves are arranged in the opposite lateral surfaces of the upper ends of the left front fork shoulder and the right front fork shoulder, the lower end of a front fork vertical pipe is matched with the grooves in the left front fork shoulder and the right front fork shoulder, the left front fork shoulder and the right front fork shoulder are wrapped at the positions of the grooves and welded to the lower end of the front fork vertical pipe, the lower end of the front fork vertical pipe is totally wrapped in the grooves of the left front fork shoulder and the right front fork shoulder, and the left front fork shoulder and the right front fork shoulder are connected at the positions of the opposite lateral surfaces of the upper ends of the left front fork shoulder and the right front fork shoulder to form a front fork shoulder, and a middle joint is formed at the connecting portion. The front fork is attractive in appearance, high in strength and accuracy, light in weight and capable of simplifying a traditional machining process and reducing carbon emission.

Description

Front fork

Technical field

The invention belongs to bicycle or electric vehicle part field, be specifically related to a kind of front fork.

Background technology

Bicycle claims bicycle again, is a kind of environmental protection vehicle that generally use.Now, along with the low-carbon environment-friendly theory popular feeling that deepens continuously, bicycle trade also becomes sunrise industry again, shows unlimited life and vigor.Bicycle mainly is made of parts such as vehicle frame, front fork, handlebar, saddle, front forked assembly and wheels.Wherein, front fork is positioned at the front part position in bicycle structure, mainly by about two fork legs, top standpipe and connect about the front fork shoulder of fork leg constitute, standpipe upper end is used for connecting the handlebar parts, about two fork legs be arranged at the front vehicle wheel both sides respectively and the lower end cooperates the guidance system of forming bicycle with preceding spindle unit.

Along with bicycle constantly develops to top grade, fashion, light route, also more and more higher to the requirement of car load.The present front fork on the bicycle market, be about fork leg upper end be cut into nock and be welded on respectively on the front fork shoulder, front fork shoulder top connects standpipe; Planting in addition is to forge with metal to form the front fork shoulder, then about the fork leg with gummed or be welded on front fork and take on.The shortcoming of the front fork of above-mentioned prior art is precision and intensity difference, and Heavy Weight.

Summary of the invention

In order to overcome above-mentioned defective, the invention provides a kind of front fork, this front fork is because the structure of its advantages of simple, can reduce production costs, alleviate weight, the increase product strength of product and optimize product integral type outward appearance, thereby improve security of products, aesthetics, and because left and right fork is integrated structure, therefore having reduced the multiple tracks processing link has also reduced carbon emission.

The present invention for the technical scheme that solves its technical matters and adopt is:

A kind of front fork, comprise left side fork leg and right fork leg, the relative extension in upper end of described left side fork leg and described right fork leg constitutes left front fork shoulder and right front fork shoulder, described left front fork shoulder and the one-body molded formation of described left side fork leg left side fork, described right front fork shoulder and the right fork of the described one-body molded formation of right fork leg, described left side fork and described right fork symmetry, described left front fork shoulder and described right front fork are takeed on both the relative side of upper end and are all offered groove, the groove that the lower end of vertical tube of front fork and described left front fork shoulder and described right front fork are takeed on both is complementary, described left front fork shoulder and described right front fork are takeed on the lower end of wrapping up and being welded in described vertical tube of front fork in described groove, and the lower end of described vertical tube of front fork is wrapped in the groove of described left front fork shoulder and described right front fork shoulder fully, and described left front fork shoulder and described right front fork are takeed on and connected and composed in the relative place, side of both upper ends that front fork is takeed on and be formed with middle joint close in the junction.

The invention has the beneficial effects as follows: front fork of the present invention comprises left side fork and right fork, left side fork and right fork are all by the fork leg with half front fork shoulder is one-body molded constitutes, owing to the front fork shoulder being arranged on the fork leg of front fork and being integrated, about two fork symmetries are after the merging, vertical tube of front fork is wrapped in two fork centres, joint close in the middle of only remaining is again by being welded to form a complete front fork, therefore, its advantage is that good looking appearance, intensity height, precision height, quality are light, and has simplified traditional processing technology.

Description of drawings

Fig. 1 is finished product structural representation of the present invention;

Fig. 2 is decomposition texture scheme drawing of the present invention.

The specific embodiment

Below by specific instantiation explanation the specific embodiment of the present invention, those of ordinary skills understand advantage of the present invention and effect easily by the content that this specification sheets discloses.

Embodiment: a kind of front fork, comprise left side fork leg 11 and right fork leg 21, both relative extension in upper end of described left side fork leg 11 and described right fork leg 21 constitute left front fork take on 12 and right front fork take on 22, described left front fork shoulder 12 and described left side fork leg 11 one-body molded formation left side forks 1, described right front fork shoulder 22 and the right fork 2 of described right fork leg 21 one-body molded formations, described left side fork 1 and described right fork 2 symmetries, all offer groove 4 on the relative side of both upper ends of described left front fork shoulder 12 and described right front fork shoulder 22, the lower end of vertical tube of front fork 3 and described left front fork shoulder 12 and described right front fork shoulder 22 groove 4 on both is complementary, described left front fork shoulder 12 and described right front fork shoulder 22 wrapped up and be welded in described vertical tube of front fork 3 in described groove 4 places lower end, and the lower end of described vertical tube of front fork 3 fully by parcel (full week parcel welding) in the groove 4 of described left front fork shoulder 12 and described right front fork shoulder 22, described left front fork shoulder and described right front fork are takeed on and are connected and composed the front fork shoulder in the relative place, side of both upper ends and be formed with middle joint close 5 in the junction.

Owing to the front fork shoulder being arranged on the fork leg of front fork and being integrated, fork symmetry about two, after the merging, vertical tube of front fork is wrapped in two fork centres, joint close in the middle of only remaining is again by being welded to form a complete front fork, therefore, its advantage is that good looking appearance, intensity height, precision height, quality are light, and has simplified traditional processing technology.

The shape of the shape of the groove on described left front fork shoulder and the right front fork shoulder and the lower end of vertical tube of front fork can be selected according to actual needs.

Claims

1. front fork, comprise left side fork leg (11) and right fork leg (21), it is characterized in that: the relative extension in both upper ends of leg (21) constitutes left front fork shoulder (12) and right front fork shoulder (22) to described left side fork leg (11) with described right fork, described left front fork shoulder (12) and the one-body molded formation left side fork of described left side fork leg (11) (1), described right front fork shoulder (22) and described right fork leg (21) the right fork of one-body molded formation (2), described left side fork (1) and described right fork (2) symmetry, all offer groove (4) on the relative side of described left front fork shoulder (12) and described right front fork shoulder (22) both upper ends, the lower end of vertical tube of front fork (3) and described left front fork shoulder (12) and described right front fork are takeed on (22) groove (4) on both and are complementary, described left front fork shoulder (12) and described right front fork shoulder (22) locate to wrap up and be welded in the lower end of described vertical tube of front fork (3) in described groove (4), and the lower end of described vertical tube of front fork (3) is wrapped in the groove (4) of described left front fork shoulder (12) and described right front fork shoulder (22) fully, and described left front fork shoulder and described right front fork are takeed on and connected and composed in the relative place, side of both upper ends that front fork is takeed on and be formed with middle joint close (5) in the junction.