CN2279306Y

CN2279306Y - Handle bar stem folding mechanism for bicycle

Info

Publication number: CN2279306Y
Application number: CN 96224194
Authority: CN
Inventors: 卫伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-13
Filing date: 1996-12-13
Publication date: 1998-04-22
Anticipated expiration: 2006-12-13

Abstract

The utility model provides a handle bar stem folding mechanism for bicycles, which comprises an upper upright post of a handle bar, a negative cylinder which is provided with a lower upright post of a handle bar and an upright post of a front fork and a front fork. The utility model is characterized in that a rotary plate of an upper upright post is respectively arranged on the upper upright post of a handle bar and the front fork; an upper fixed plate and a lower fixed plate are respectively arranged on the lower upright post of a handle bar and the upper upright post of a front fork; the rotary plate of an upper upright post is hinged with the upper fixed plate; a rotary plate of a front fork is hinged with the lower fixed plate; a locking rod which can be used for fixedly connecting or loosening the rotary plate of an upper upright post and the rotary plate of a front fork with the upper fixed plate and the lower fixed plate is arranged between the upper fixed plate and the lower fixed plate; a connecting rod is respectively arranged on the rotary plate of an upper upright post and the rotary plate of a front fork. The utility model can realize that a handle bar, the front fork and a front wheel can be folded quickly.

Description

Bicycle handle bar's column fold mechanism

The utility model provides a kind of bicycle handle bar column fold mechanism, is used for the folding and fixing of bicycle handle bar's column and front fork and front-wheel.

In recent years, along with the transformation of crowded further and people's consumption consciousness of city traffic, folding bicycle is progressively accepted by people.A kind of folding bicycle of No. 94229751.2 patent disclosures of China, structure in its cloudy tube top and the bottom is all very complicated, it is to adopt the double joint upper pillar stand, connect firmly a pivoted housing under the every upper pillar stand, a pivoted housing also is connected on the handlebar lower pillar stand, with a lock shaft three pivoted housings are linked together, this structural machinability is poor, the manufacturing cost height.

The purpose of this utility model is to overcome above-mentioned deficiency and a kind of bicycle handle bar column fold mechanism is provided.

The utility model provides a kind of bicycle handle bar column fold mechanism, comprise the handlebar upper pillar stand, the cloudy tube and the front fork that contain handlebar lower pillar stand and front fork upper pillar stand, it is characterized in that upper pillar stand flap and front fork flap are arranged on described handlebar upper pillar stand and the front fork, on handlebar lower pillar stand and the front fork upper pillar stand upper mounted plate and bottom plate are arranged, upper pillar stand flap and upper mounted plate are hinged, front fork flap and bottom plate are hinged, on, having between bottom plate can be with upper pillar stand flap and front fork flap and last, the locking lever that bottom plate is connected and unclamps, upper pillar stand flap and front fork flap are provided with connecting rod.When locking lever is captiveed joint upper pillar stand flap and upper mounted plate and front fork flap with bottom plate, handlebar upper pillar stand and handlebar lower pillar stand and front fork upper pillar stand and front fork are connected to one, bicycle is rideable, when locking lever unclamped upper pillar stand flap and upper mounted plate and front fork flap and bottom plate, handlebar upper pillar stand and front fork front-wheel can foldings in front vehicle frame.Connecting rod makes handlebar upper pillar stand and the folding in front vehicle frame simultaneously of front fork front-wheel.

All there is supporting base above-mentioned upper pillar stand flap and front fork flap end, and lock shaft is arranged in the supporting base.

Above-mentioned locking lever is movably connected on the upper and lower fixing plate, and moving rod is arranged on the locking lever, and the upper/lower terminal of locking lever has the locking head that blocks the lock shaft on upper pillar stand flap and the front fork flap.Moving moving rod rotates locking lever, locking head breaks away from the lock shaft on upper pillar stand flap and the front fork flap, rotate the handlebar upper pillar stand to the front vehicle frame direction, the upper pillar stand flap upwards rotates and makes the handlebar upper pillar stand folding to the front vehicle frame direction, and while front fork flap under the effect of connecting rod rotates front fork and front-wheel are folded to the front vehicle frame invagination.If upwards rotate the handlebar upper pillar stand, the upper pillar stand flap rotates, simultaneously under the connecting rod effect, thereby the front fork flap upwards rotates and makes handlebar upper pillar stand and front fork front-wheel return, moving moving rod this moment makes it to rotate, the locking head of moving rod upper/lower terminal promptly blocks the lock shaft on upper pillar stand flap and the front fork flap, thereby the handlebar upper pillar stand is captiveed joint with front fork with handlebar lower pillar stand and front fork upper pillar stand.

Bicycle handle bar provided by the utility model column fold mechanism can either make the handlebar upper pillar stand and the folding simultaneously of front fork front-wheel of bicycle, the handlebar column can be captiveed joint with cloudy tube with front fork and front-wheel again, enables to ride.The utility model can make folding bicycle folding more convenient, save time.Characteristics such as that the utility model also has is rational in infrastructure, easy to process, low cost of manufacture.

Below in conjunction with description of drawings embodiment of the present utility model.

Fig. 1 main TV structure scheme drawing of the present utility model

Fig. 2 is the side-looking structural representation of Fig. 1

Structural representation during the folding of Fig. 3 the utility model.

With reference to figure 1～Fig. 3: the utility model comprises handlebar upper pillar stand 1, and front fork 6 and cloudy tube 2 have front vehicle frame formed integrally therewith 3 on the cloudy tube 2, are fixed with handlebar lower pillar stand 4 by upper pillar stand lock screw 9 in the cloudy tube 2, also have front fork upper pillar stands 5 in the cloudy tube 2.The upper pillar stand flap 7 and the front fork flap 8 that are fixed with one are with it arranged on handlebar upper pillar stand 1 and front fork 6, handlebar lower pillar stand 4 upper ends are fixed with upper mounted plate 10 by upper pillar stand lock screw 9, upper pillar stand flap 7 places on the upper mounted plate 10, and its rear end is hinged by lock shaft 11.Be fixed with bottom plate 12 on front fork upper pillar stand 5, bottom plate 12 places on the front fork flap 8, and its rear end is hinged by lock shaft 13.Front end at upper pillar stand flap 7 and front fork flap 8 all has Connection Block formed integrally therewith, has corresponding hole on the Connection Block, and lock shaft 14 is arranged in the hole.Front end at upper mounted plate 10 and bottom plate 12 has corresponding hole, is connected with locking lever 15 in the hole, and the upper/lower terminal of locking lever 15 has locking head formed integrally therewith 16, also has moving rod formed integrally therewith 17 on the locking lever 15.Also be hinged with connecting rod base 18 on the lock shaft 11 of hinged upper pillar stand flap 7 and upper mounted plate 10, connecting rod base 18 is hinged with the upper end of connecting rod 19, and the lower end of connecting rod 19 is connected with the Connection Block 20 that is connected on the front fork flap 8.

Claims

1, a kind of bicycle handle bar column fold mechanism, comprise the handlebar upper pillar stand, the cloudy tube and the front fork that contain handlebar lower pillar stand and front fork upper pillar stand, it is characterized in that upper pillar stand flap and front fork flap are arranged on described handlebar upper pillar stand and the front fork, on handlebar lower pillar stand and the front fork upper pillar stand upper mounted plate and bottom plate are arranged, upper pillar stand flap and upper mounted plate are hinged, front fork flap and bottom plate are hinged, the locking lever that upper pillar stand flap and front fork flap and upper and lower fixing plate can be connected and unclamp is arranged between upper and lower fixing plate, and upper pillar stand flap and front fork flap are provided with connecting rod.

2, bicycle handle bar according to claim 1 column fold mechanism is characterized in that all there is supporting base described upper pillar stand flap and front fork flap end, have lock shaft in the supporting base.

3, bicycle handle bar according to claim 1 column fold mechanism, it is characterized in that described locking lever is movably connected on the upper and lower fixing plate, moving rod is arranged on the locking lever, and the upper/lower terminal of locking lever has the locking head that blocks the lock shaft on upper pillar stand flap and the front fork flap.