CN2142812Y

CN2142812Y - Foldable bicycle

Info

Publication number: CN2142812Y
Application number: CN 92238348
Authority: CN
Inventors: 蒋启祥; 陈利民; 周忠伟
Original assignee: SHAOXING CITY LIGHT INDUSTRY M
Current assignee: SHAOXING CITY LIGHT INDUSTRY M
Priority date: 1992-10-14
Filing date: 1992-10-14
Publication date: 1993-09-29
Anticipated expiration: 2002-10-14

Abstract

The utility model relates to a foldable bicycle, comprising components, such as a front vehicle frame component, a rear vehicle frame component, a folding mechanism, a shaft class clamping device, etc. The folding mechanism between the front vehicle frame component and the rear vehicle frame component is a pin shaft connection mode folding mechanism through which the mechanism realizes the folding function of the vehicle frame. A handlebar folding mechanism is a lock hook locking device, the device is regulated to realize the folding function of the handlebar, and the vertical tube of a saddle component and the front vertical tube of a handlebar component are respectively provided with a shaft class clamping device which can adjust the height of the saddle and the handlebar. The utility model has simple structure, convenient folding, small size, light weight and convenient use.

Description

Foldable bicycle

The utility model relates to a kind of Folding Bicycle, belongs to the improvement of bicycle.

Existing Folding Bicycle, the fold mechanism more complicated, required part manufacturing process difficulty is big, and after folding, weight is heavier, and volume is bigger.

The purpose of this utility model is to provide a kind of fold mechanism simple, folding convenient, Folding Bicycle in light weight, that volume is little.

Folding Bicycle described in the utility model is made up of parts such as front and back chassis assembly and fold mechanisms.The front vehicle frame assembly contains front-wheel, front fork and handlebar assembly; Back chassis assembly contains trailing wheel, saddle assembly and has the driving device of flywheel, chain, foot-operated crank; Vehicle frame folding mechanism between the forward and backward chassis assembly is a bearing pin interconnection system vehicle frame folding mechanism, forward and backward chassis assembly respectively with this mechanism in protruding page or leaf and recessed page become captive joint, by this fold mechanism, can realize the vehicle frame folding function, handlebar folding mechanism between front fork and the handlebar assembly is the latch hook latching device, regulate this device, just can realize the handlebar folder function; On the preceding standpipe of the standpipe of saddle assembly and handlebar assembly, an axle class fixing device is installed respectively, by its scalable saddle and handlebar height.

Fig. 1 is the three-dimensional profile scheme drawing of the car load of Folding Bicycle.

Fig. 2 is the three-dimensional profile scheme drawing in the folding back of Folding Bicycle.

Fig. 3 is a Folding Bicycle bearing pin interconnection system fold mechanism structural representation, and a is a bearing pin interconnection system fold mechanism scheme drawing among Fig. 3, and bearing pin interconnection system fold mechanism is along A-A line gained cutaway view shown in a in order to scheme for b, and c is a safety dog block structure scheme drawing.

Fig. 4 is a Folding Bicycle latch hook locking device structure scheme drawing, and a is that latch hook latching device latch hook is in when locking cutaway view, and b is latch hook latching device latch hook structural representation when opening.

Fig. 5 is a Folding Bicycle axle class fixing device structural representation, and a is an axle class fixing device complete section scheme drawing, and b is the class of axle shown in an a fixing device A-A cutaway view.

Below in conjunction with accompanying drawing embodiment of the present utility model is described:

Folding Bicycle described in the utility model, by forward and backward chassis assembly, part such as vehicle frame folding mechanism is formed.Front vehicle frame assembly ［ 1 ］ contains front-wheel, front fork ［ 7 ］ and handlebar assembly ［ 8 ］, and front fork ［ 7 ］ is connected on the handlebar assembly ［ 8 ］ by a latch hook latching device ［ 9 ］; Back chassis assembly ［ 2 ］ contains trailing wheel, saddle assembly ［ 29 ］ and has the driving device of flywheel, chain, foot-operated crank; One bearing pin interconnection system vehicle frame folding mechanism ［ 6 ］ is arranged between forward and backward chassis assembly ［ 1,2 ］.On the preceding standpipe ［ 31 ］ of the standpipe ［ 30 ］ of saddle assembly ［ 29 ］ and handlebar assembly ［ 8 ］, an axle class fixing device ［ 3 ］ is set respectively.

Bearing pin interconnection system vehicle frame folding mechanism ［ 6 ］ is by protruding page or leaf ［ 10 ］, recessed page or leaf ［ 11 ］, and protruding pin ［ 12 ］, recessed pin ［ 13 ］, bull stick ［ 14 ］, the spirit ［ 15 ］ of living, lock page or leaf ［ 16 ］, bearing pin ［ 17 ］ pushes away handle ［ 18 ］ and constitutes.Protruding page or leaf ［ 10 ］ and recessed page ［ 11 ］ respectively with forward and backward chassis assembly ［ 1,2 ］ captive joint, protruding page or leaf ［ 10 ］ becomes to flexibly connect by bearing pin ［ 17 ］ with recessed page or leaf ［ 11 ］, and recessed pin ［ 13 ］ is installed on the protruding page or leaf ［ 10 ］, and its other end is connected with lock page or leaf ［ 16 ］; Protruding pin ［ 12 ］ is installed on the recessed page or leaf ［ 11 ］, its other end is connected with an end of the bull stick ［ 14 ］ of a level, the other end of bull stick ［ 14 ］ is connected with the spirit ［ 15 ］ of living, the spirit ［ 15 ］ of living is installed on the lock page or leaf ［ 16 ］ movably, lock page or leaf ［ 16 ］ has groove, bull stick ［ 14 ］ can be lived mutually with the groove on the lock page or leaf ［ 16 ］ and be joined, and pushes away the top that handle ［ 18 ］ places the spirit ［ 15 ］ of living.Promotion pushes away handle ［ 18 ］, can make lock page or leaf ［ 16 ］, and bull stick ［ 14 ］ be that rotation is carried out in the axle center simultaneously with the spirit ［ 15 ］ of living respectively, thereby drives protruding page or leaf ［ 10 ］ and recessed page or leaf ［ 11 ］ around about bearing pin ［ 17 ］ Rotate 180 °, realization vehicle frame folding function.And when vehicle frame opened and used, bearing pin interconnection system vehicle frame folding mechanism ［ 6 ］ utilized connecting rod mechanism dead point self-lock mechanism, was in locking state.For preventing big vibrations or accident, on back chassis assembly ［ 2 ］, insurance block ［ 38 ］ has been installed, insure block ［ 38 ］ but the along continuous straight runs adjusting, when vehicle frame opened and used, it can block lock page or leaf ［ 16 ］ and rotate, and plays safety effect.

Latch hook latching device ［ 9 ］ is by rolling over handle ［ 19 ］, lock ［ 20 ］, latch hook ［ 21 ］, fixed page ［ 22 ］ and moving page or leaf ［ 23 ］, pin alive ［ 24 ］ composition.Fixed page or leaf ［ 22 ］ is installed on the bridge of the nose pipe ［ 25 ］ and front fork ［ 7 ］ of front vehicle frame assembly ［ 1 ］, and fixed page or leaf ［ 22 ］ has a flange.Lock ［ 20 ］ and moving page or leaf ［ 23 ］ are fixedly connected on the preceding standpipe ［ 31 ］.Folding handle ［ 19 ］ is contained on the lock ［ 20 ］ rotationally with the lock pin ［ 27 ］ that is wound with spring ［ 26 ］.One end of latch hook ［ 21 ］ is contained on the folding handle ［ 19 ］ movably with threaded pin ［ 28 ］.Moving page or leaf ［ 23 ］ is connected with fixed page or leaf ［ 22 ］ by the pin ［ 24 ］ of living, and can rotate around the pin ［ 24 ］ of living.During use, open folding handle ［ 19 ］, latch hook ［ 21 ］ is thrown off the flange portion of fixed page or leaf ［ 22 ］, and handlebar assembly ［ 8 ］ is rotated around the pin ［ 24 ］ of living, and reaches the folding requirement of handlebar; Press folding handle ［ 19 ］, latch hook ［ 21 ］ hooks the flange of fixed page or leaf ［ 22 ］, and handlebar assembly ［ 8 ］ is connected with front fork ［ 7 ］, reaches the bicycle operating needs.

Axle class fixing device ［ 3 ］ is by anchor ear ［ 32 ］, bolt ［ 33 ］, and nut ［ 34 ］, eccentric pivot pin ［ 35 ］, handle ［ 36 ］, gripping sleeve ［ 37 ］ is formed.Gripping sleeve ［ 37 ］ is enclosed within saddle pipe or handle riser outside, reinstalls in standpipe ［ 30 ］ or the preceding standpipe ［ 31 ］, and anchor ear ［ 32 ］ is enclosed within standpipe ［ 30 ］ or preceding standpipe ［ 31 ］ outside.Gripping sleeve ［ 37 ］ is to make with plastic material.Bolt ［ 33 ］ passes the hole on anchor ear ［ 32 ］ both sides, one end is connected with nut ［ 34 ］, have pin-and-hole on the square convex shoulder of the other end, eccentric pivot pin ［ 35 ］ is installed in the square convex shoulder pin-and-hole, handle ［ 36 ］ is installed in the hole of eccentric pivot pin ［ 35 ］, and handle ［ 36 ］ can drive eccentric pivot pin and rotate.Anchor ear [32] can be locked or unclamp to turning handle ［ 36 ］ under the effect of eccentric pivot pin ［ 35 ］,, regulates the height of saddle or handle.

During use, if need bicycle folding is got up, adjusting shaft class fixing device ［ 3 ］ at first, saddle assembly ［ 29 ］ and handlebar assembly ［ 8 ］ are dropped to extreme lower position, next opens the folding handle ［ 19 ］ in the latch hook latching device ［ 9 ］, make latch hook ［ 21 ］ throw off fixed page or leaf ［ 22 ］, rotation handlebar assembly ［ 8 ］, reach the folding requirement of handlebar, open insurance block ［ 38 ］ at last, push away handle ［ 18 ］, make front vehicle frame assembly ［ 1 ］ around about bearing pin ［ 17 ］ Rotate 180 °, reach forward and backward two-wheeled and be in the parallel position of being close to, whole folding process is finished.Otherwise if need bicycle is opened into car load, the inverted sequence when folding is carried out just.

Folding bike described in the utility model has following characteristics:

This car fold mechanism is simple, do not need any instrument can make things convenient for promptly folding or launch and use, volume little (be about 710 * 360 * 240mm), (being about 13kg) in light weight, easy to use, easy to carry and store.

Claims

1, a kind of Folding Bicycle, by forward and backward frame component [1,2] and fold mechanism, an axle class fixing device [3] form, it is characterized in that forward and backward chassis assembly [1,2] the vehicle frame folding mechanism between is a bearing pin interconnection system fold mechanism [6], and the handlebar folding mechanism between front fork [7] and the handlebar assembly [8] is a latch hook latching device [9].

2, Folding Bicycle as claimed in claim 1, it is characterized in that described bearing pin interconnection system fold mechanism ［ 6 ］ has protruding page or leaf ［ 10 ］, recessed page or leaf ［ 11 ］, protruding pin ［ 12 ］, recessed pin ［ 13 ］, bull stick ［ 14 ］, live clever ［ 15 ］, lock page or leaf ［ 16 ］, bearing pin ［ 17 ］, protruding page or leaf ［ 10 ］ becomes to flexibly connect by bearing pin ［ 17 ］ with recessed page or leaf ［ 11 ］, and protruding page or leaf ［ 10 ］, recessed page or leaf ［ 11 ］ is respectively with preceding, back chassis assembly ［ 1,2 ］ captive joint, recessed pin ［ 13 ］ are installed on the protruding page or leaf ［ 10 ］, its other end is connected with lock page or leaf ［ 16 ］, protruding pin ［ 12 ］ is installed on the recessed page or leaf ［ 11 ］, and its other end is connected with the bull stick ［ 14 ］ of a level, and the other end of bull stick ［ 14 ］ is connected with the spirit ［ 15 ］ of living, the spirit ［ 15 ］ of living is installed on the lock page or leaf ［ 16 ］ movably, and bull stick ［ 14 ］ can be lived mutually with institute's recessing on the lock page or leaf ［ 16 ］ and be joined.

3, Folding Bicycle as claimed in claim 1, it is characterized in that described latch hook latching device ［ 9 ］ has folding handle ［ 19 ］, lock ［ 20 ］, latch hook ［ 21 ］, fixed page or leaf ［ 22 ］ and moving page or leaf ［ 23 ］, live and sell ［ 24 ］, there is the fixed page or leaf ［ 22 ］ of a flange to be installed on bridge of the nose pipe ［ 25 ］ and the front fork ［ 7 ］, lock ［ 20 ］ and moving page or leaf ［ 23 ］ are fixed on the preceding standpipe ［ 31 ］, folding handle ［ 19 ］ is installed on the lock ［ 20 ］, one end of latch hook ［ 21 ］ is installed on the folding handle ［ 19 ］, and moving page or leaf ［ 23 ］ becomes to flexibly connect with fixed page or leaf ［ 22 ］ by the pin ［ 24 ］ of living.

4, Folding Bicycle as claimed in claim 1, the axle class fixing device ［ 3 ］ that it is characterized in that being installed on the preceding standpipe ［ 31 ］ of the standpipe ［ 30 ］ of saddle assembly ［ 29 ］ and handlebar assembly ［ 8 ］ has anchor ear ［ 32 ］, bolt ［ 33 ］, nut ［ 34 ］, eccentric pivot pin ［ 35 ］, handle ［ 36 ］ and gripping sleeve ［ 37 ］, bolt ［ 33 ］ passes the hole on anchor ear ［ 32 ］ both sides, one end is connected with nut ［ 34 ］, eccentric pivot pin ［ 35 ］ is installed in the pin-and-hole on the square convex shoulder of the other end, and handle ［ 36 ］ is contained in the hole of eccentric pivot pin ［ 35 ］.

5, Folding Bicycle as claimed in claim 1 or 2 is characterized in that being equipped with on the back chassis assembly ［ 2 ］ one and can block the insurance block ［ 38 ］ that lock page or leaf ［ 16 ］ rotates.