CN2491315Y

CN2491315Y - Folding joint of folding bicycle

Info

Publication number: CN2491315Y
Application number: CN 01209622
Authority: CN
Inventors: 崔百棠
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-30
Filing date: 2001-03-30
Publication date: 2002-05-15
Anticipated expiration: 2011-03-30

Abstract

The utility model discloses a folding joint of folding bicycle, wherein a frame beam is fixed with a front and a back joint slices encased together and articulated by a pin shaft; the pin shaft is provided with a poking fork plate; the joint slices are provided with chutes containing poking fork shafts; the chute of the front joint slice has a slipway from which the poking fork shaft can break loose at one side; the poking fork shafts are embedded into the chutes to draw both ends of a spring so as to hang both ends of the spring on the pin shaft and the poking fork shafts; the ends of the poking fork plate have camber lines capable of limiting the poking fork shafts to two positions inside the chutes; the pin shaft is connected with a handle turning the poking fork plate; when the joint is closed, one hand of a user can be put at the shaft end of the poking fork shaft positioned at the peri position. The utility model provides a folding joint of folding bicycle which has a firm structure and fast opening and closing and can guarantee that the joint is in locking state during riding a bicycle.

Description

The Folding Bicycle folding joint

The utility model belongs to a kind of Folding Bicycle folding joint.

Folding joint between existing Folding Bicycle front vehicle frame and back vehicle frame adopts latch structure or the so detachable fixing folding that realizes the front and back vehicle frame of bolt structure, want widow bolts or bolt during the vehicle frame folding, fixing, very cumbersome again, be difficult to adapt to the folding requirement of the frequent folding of car body.

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of sound construction is provided, and quickly opening and closing can be realized the Folding Bicycle folding joint of self-locking.

For realizing the purpose of this utility model, the technical scheme of employing is: being fixedly connected on the Folding Bicycle front frame rail (10) is

The preceding articular sclerite (9) of shape, being fixedly connected on the back chassis frame (1) is

The posterior joint sheet (2) of shape, preceding articular sclerite is embedded in the posterior joint sheet, is

The fit shape of shape is mutually with bearing pin (8) hinge-coupled; Fork plate (3) has been fixedly connected on the bearing pin (8); Folding joint closure state position, on preceding articular sclerite (9) and posterior joint sheet (2), there is the measure-alike chute (5) that declutch shift shaft (6) slides that holds at the other end place that is positioned at bearing pin (8) hole, before the slideway (4) that has declutch shift shaft to deviate from from side direction away from the front vehicle frame side of chute of articular sclerite (9), declutch shift shaft (6) embeds in the chute with bearing fit, the two ends of extension spring (7), be hung on bearing pin (8) and the declutch shift shaft (6), there is the camber line of qualification declutch shift shaft (6) or nearly two positions far away apart from bearing pin in chute fork plate (3) end.Be connected with the handle (11) that rotates fork plate on the bearing pin.

The principle of work of present embodiment is: when bicycle was folded state, the front and back articular sclerite was disengaged condition, and declutch shift shaft (6) is in location of peri position; In the time of vehicle frame need being turned to the bicycle running state, the rotation vehicle frame to the front and back vehicle frame in line, declutch shift shaft (6) on the posterior joint sheet (2) is lifted by the pulling force that the following camber line (12) of preceding articular sclerite bilge logs (4) overcomes brute spring (7), after entering the chute amphi position, pull to peri position by spring (7), and the handle termination is buckled on the shift fork spindle nose, guarantee joint blocking in the bicycle running state.In the time of need changing bicycle into folded state, swing handle (11) drive fork plate (3) overcomes spring tension declutch shift shaft (6) is raised to amphi position along camber line, rotate vehicle frame, declutch shift shaft on the posterior joint sheet (6) is skidded off by the slideway on the preceding articular sclerite (4), and articular sclerite is the fit relation before and after no longer limiting.Declutch shift shaft is by spring (7) tension lower compression fork plate (3) and push fork plate open along the camber line on the fork plate and slide into peri position, and bicycle is folded state.

Because adopt such organization plan, having reached provides a kind of sound construction, quickly opening and closing can be guaranteed the purpose of the Folding Bicycle folding joint of joint blocking in the bicycle running state.

Accompanying drawing and drawing reference numeral explanation:

Fig. 1 is the block diagram of the utility model Folding Bicycle folding joint specific embodiment.

Cutaway view when Fig. 2 is Fig. 1 joint closure state behind the lamellar body of removal articular sclerite one side.

Cutaway view when Fig. 3 is Fig. 1 joint open mode behind the lamellar body of removal articular sclerite one side.1, back chassis frame 2, posterior joint sheet 3, fork plate 4, slideway 5, chute 6, declutch shift shaft 7, spring 8, bearing pin 9, preceding articular sclerite 10, front vehicle frame 11, handle 12, following camber line

Below in conjunction with the drawings and specific embodiments the utility model Folding Bicycle is described in further detail: the utility model specific embodiment: as Fig. 1,2,3, being fixedly connected on the Folding Bicycle front frame rail (10) is

When the joint was closed, the termination in that the bearing pin head winds the handle (11) that the handle rotation axis perpendicular to the bearing pin axis rotates was enclosed within on the axle head of the declutch shift shaft that is in location of peri position.

Spring gets loose in the time of can preventing bicycle running like this, and declutch shift shaft skids off slideway, the phenomenon that the joint is opened.It is the another kind of measure of guaranteeing joint blocking in the bicycle running state.

Claims

1, Folding Bicycle folding joint of the present utility model comprises vehicle frame and articular sclerite, it is characterized in that: being fixedly connected on the Folding Bicycle front frame rail (10) is

The fit shape of shape is mutually with bearing pin (8) hinge-coupled; Fork plate (3) has been fixedly connected on the bearing pin (8); Folding joint closure state position, on preceding articular sclerite (9) and posterior joint sheet (2), there is the measure-alike chute (5) that declutch shift shaft (6) slides that holds at the other end place that is positioned at bearing pin (8) hole, before the slideway (4) that has declutch shift shaft to deviate from from side direction away from the front vehicle frame side of chute of articular sclerite (9), declutch shift shaft (6) embeds in the chute with bearing fit, the two ends of extension spring (7), be hung on bearing pin (8) and the declutch shift shaft (6), there is the camber line of qualification declutch shift shaft (6) or nearly two positions far away apart from bearing pin in chute fork plate (3) end, is connected with the handle (11) that rotates fork plate on the bearing pin.

2, Folding Bicycle folding joint according to claim 1, it is characterized in that: the termination of winding the handle (11) that rotates perpendicular to the handle rotation axis of bearing pin axis at the bearing pin head, when the joint is closed, be enclosed within on the axle head of the declutch shift shaft that is in location of peri position.