CN2035336U

CN2035336U - Collapsible bicycle

Info

Publication number: CN2035336U
Application number: CN 88215557
Authority: CN
Inventors: 冯翔
Original assignee: Zhenhua Bicycle Industry & Commerce Co Ltd
Current assignee: Zhenhua Bicycle Industry & Commerce Co Ltd
Priority date: 1988-10-24
Filing date: 1988-10-24
Publication date: 1989-04-05

Abstract

The utility model discloses a folding bicycle which can keep the advantages of the traditional bicycle, comprising front and back wheels, a bicycle beam, a front fork and feet pedals, and the front fork can be divided into upper and lower two sections. The upper section can be rotated downwards 180 DEG through a turnover piece, the handle bar section can be abutted with one side of the front wheel, and the bicycle beam comprises a front section and a back section and is folded through a hinged piece. The feet pedals can make use of own shaft rotating and can be abutted with the crank of a centre shaft, a bicycle seat can be contracted downwards by making use of a quick tightness piece, and the folding bicycle can be formed and has the advantages of compact structure and convenient storing and transport.

Description

Collapsible bicycle

The utility model relates to a kind of bicycle, particularly a kind of foldable bicycle.

Continuous growth along with world population, the light vehicle are more and more welcome, and bicycle is exactly an example wherein, and it is not only a kind of instrument of sports, and in a lot of countries as walking-replacing tool, thereby everybody wants to have oneself a bicycle.Yet, current bicycle, generally all very heavy, volume is very big, though but the bicycle of some reduced volumes is also arranged, as telescopic etc., troublesome poeration generally will be dismantled and fix with accessory appliances.Thereby for using and depositing and bring very big inconvenience.Again because the anxiety of population living space, therefore, be necessary to study and be convenient to the portable bicycle depositing and use.

The purpose of this utility model will provide a kind of carrying, Folding Bicycle that floor area is little and easy to operate be convenient to exactly.

The contriver is through the years of researches experiment, finally developed the Folding Bicycle of realizing above-mentioned purpose, this car has kept the characteristic of standard bicycle, has forward and backward wheel, vehicle seat, Che Liang, sprocket wheel, chain, flywheel, front fork and pedal etc., described front fork is grouped into by the upper and lower part, and this upper and lower part is stirred part by one and is connected, described car beam is made up of forward and backward two parts, is connected by an articulation piece between them.

Described flip piece comprises a Jiong shape part on the top that is fixed on front fork, with a corresponding clamping element that is fixed on the lower part, one end of shape part forever is connected rotationally with an end of clamping element, and that the other end of Jiong shape part has a hole is corresponding with an end of the clamping element that the elasticity bearing pin is housed.Described articulation piece comprises the semicircle boss on the car beam leading portion, fixed mount with trailing portion, their sockets are also rotatably fixing by a bolt, installing elasticity bearing pin on fixed mount, and it is corresponding with bearing pin to be provided with horizontal through hole on the semicircle boss of car beam leading portion.

Described pedal comprises a minor axis that is contained on the Middle axle crank, axle sleeve is housed on the minor axis, and a transverse axis laterally is fixed on the axle sleeve, and foot piece is supported on the transverse axis, have two pairs of grooves that differ 90 degree in the inboard of foot piece, elasticity blocks part and groove is oppositely arranged.

Bicycle of the present utility model, by above-mentioned movable position, just caning be folded into volume changes little and portable bicycle, so that deposit or carry.

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described as follows:

Fig. 1 is the front view of Folding Bicycle of the present utility model;

Fig. 2 is the transparent view of Folding Bicycle of the present utility model, so that more clearly express the relation of each parts of the present utility model;

Fig. 3 is the transparent view of Folding Bicycle after folding of utility model;

Fig. 4 is the partial view of the car beam articulation piece of Folding Bicycle of the present utility model, has represented that articulation piece is in the situation of normal use location;

Fig. 5 is in the partial view of folded state for car beam articulation piece among Fig. 4;

Fig. 6 is the transparent view of flip piece on the front fork parts of Folding Bicycle of the present utility model, has represented the situation in its running condition;

Fig. 7 is that flip piece among Fig. 6 is in the fragmentary, perspective view of its folding situation.

Fig. 8 and Fig. 9 are the diagram of the pedal of Folding Bicycle of the present utility model in use location and folding position.

At first referring to Fig. 1 and Fig. 2, the bicycle of having represented a kind of conventional version among the figure, comprising front fork parts (comprising handlebar) 1, front-wheel 12, car beam 4, saddle assembly 9, quick locking piece 8, sprocket wheel 5, chain 14, Middle axle crank 15, pedal 10, trailing wheel 13 and brake 11, more than all on existing bicycle, see, and become gauge member, in the retailer of various places, all can buy.From Fig. 1, also can find out, a flip piece 3 is housed on the front fork parts 1, simultaneously referring to accompanying drawing 6 and 7.Front fork 1 by flip piece 3 be divided into upper and lower part 1 ', 1 "; flip piece 3 comprises a Jiong shape part 30 and corresponding clamping element 31 and resilient pin 2; top 1 ' the bottom be contained on the Jiong shape part 30; lower part 1 " the end fixing by a clamping element 31, one end of Jiong shape part 30 has the hole by bearing pin and rotating permanent connection of an end of clamping element 21 on the other end of Jiong shape part 30.Resilient pin 2 is housed on the other end of clamping element 21, running condition at bicycle, resilient pin 2 on the clamping element 31 inserts in the hole of Jiong shape part 30, thereby fixing two parts of front fork 1 (seeing the position shown in Fig. 6), there is locking gear operating side at resilient pin 2, screw thread in the overcoat inside fire attack of latch 2, and cooresponding screw thread is also arranged on pin, so that latch rotates several circles it can not got loose after inserting the hole of Jiong shape part 30.

Below in conjunction with Fig. 4 and Fig. 5, folding car beam partly is described below: whole car beam is assemblied on the bicycle by orthodox method, two parts 4 before and after an articulation piece is divided into the car beam, 4 ', this articulation piece has comprised the semicircle boss 40 of car beam leading portion 4, vertical through hole 41 is arranged on it, with horizontal through hole 42, car beam trailing portion 4 ' on fixed mount 40 ', join platform and undertaken rotatably fixing by the bolt 6 in the vertical through hole on the boss 40 41 with the boss 40 of leading portion 4, fixed mount 40 ' on elasticity bearing pin 7 is housed, bearing pin 7 cooperates with horizontal through hole 42 on the boss 40, restriction boss 40 is normal use location and folding position relative fixed two positions around the rotation of bolt 6 respectively thereby make two parts of car beam.There is locking gear operating side at resilient pin 7, and its structure is identical with resilient pin 2.The car beam is in running condition as can be seen from Figure 4, long and short dash line represented car beam trailing portion 4 ' on fixed mount 40 ', fixed mount 40 ' fix rotationally with 40 sockets of semicircle boss and by bolt 6, meanwhile, fixed mount 40 ' on elasticity bearing pin 7 insert in the horizontal through hole 42 just, restriction boss 40 with respect to fixed mount 40 ' rotation, make that two parts become as a whole before and after the car beam, thereby realized the function that general car beam is had.When bicycle need be deposited or transport, be pulled outwardly elasticity bearing pin 7 with hand, make it break away from horizontal through hole 42, make the leading portion 4(of car beam see Fig. 5 simultaneously) around bolt 6 Rotate 180 degree, in this position, elasticity bearing pin 7 can insert in the through hole 42 again automatically, (need to prove here, the opening on through hole 42 two sides just in time forms 180 °), rotate thereby stop further, make the leading portion of car beam keep folding state.In like manner, to drawing the elasticity bearing pin, the leading portion 4 that makes the car beam is to the reversing sense turnback with hand, the running condition of just returning.Because there is locking gear the operating side of bearing pin 7, thereby can use hand rotating pin more than 7 circles in bearing pin patchhole 42, thereby prevent that the reasons such as vibration owing to by bike the time from get loose pin.It is emphasized that the each several part here (as boss 40, fixed mount 40 ', bearing pin 7, bolt 6 etc.) make quite slick and sly, in order to avoid the user damages because of carelessness.

The situation of the running condition of pedal 10 of the present utility model and folded state shown in Fig. 8 and Fig. 9, identical substantially with traditional bicycle, minor axis 100 is housed on the end of Middle axle crank 15, rotating axle sleeve 103 is housed on the minor axis 100, a transverse axis 101 laterally is fixed on the axle sleeve 103, and support foot piece 104, elasticity is blocked part 102 and is stretched out respectively from the outside of axle sleeve, inboard until contact foot piece 104, here elasticity is blocked part 102 and is made up of spring and steel ball, have two pairs of grooves 105 that differ 90 ° mutually in the inboard of foot piece 104,106, these grooves are identical to the distance of the axis of transverse axis 101, thereby reach the purpose of accurately blocking.When bicycle is in running condition, elasticity is blocked part 102 and is stuck in the groove 106, this moment, stretcher rotated around minor axis 100 together with axle 101, the function of finishing is identical with traditional bicycle, when needs transported or deposit, stretcher 104 revolved around axle 101 and turn 90 degrees, and presses close to Middle axle crank 15, meanwhile block part 102 and be stuck in the groove 105 by skidding off in the groove 106 automatically, with and keep the folded state (this state is seen Fig. 9) of stretcher.

Also can find out from Fig. 1 has a quick locking piece 8 below the saddle assembly 9, can make the rapid lifting of vehicle seat.This device adopts in existing bicycle, therefore needn't describe in detail at this.

Fig. 3 shows the situation of bicycle folding state of the present utility model, as can be seen from the figure the car beam has rotated 180 ° of degree backward by articulation piece, the forward and backward two-wheeled of bicycle is arranged in juxtaposition, the top of front fork is also by the flip piece 180 ° of degree that overturn downwards, thereby make handlebar partly press close to the side of front-wheel, the foot piece of pedal assembly also around himself axle rotation 90, is pressed close to Middle axle crank, and the vehicle seat part is shunk downwards.From figure, just can find out, the bicycle of this moment, structure is very compact, thereby is convenient to deposit or transport.

Claims

1, a kind of Folding Bicycle comprises front and back wheel, Che Liang, front fork, sprocket wheel, chain, pedal, telescopic vehicle seat, and it is characterized in that: described front fork is grouped into by the upper and lower part, and this upper and lower part connects by a flip piece; Described car beam is grouped into by front and rear portions, is connected by an articulation piece between them.

2, according to the bicycle of claim 1, it is characterized in that: described pedal comprises a minor axis, axle sleeve is housed on the minor axis, a transverse axis laterally is fixed on the axle sleeve, foot piece is supported on the transverse axis, have two pairs of grooves that differ 90 ° in the inboard of foot piece, elasticity blocks part and groove is oppositely arranged.

3, according to the bicycle of claim 1 or 2, it is characterized in that: described flip piece comprises a Jiong shape part and corresponding clamping element, and an elasticity bearing pin is housed on clamping element.

4, according to the bicycle of claim 1 or 2, it is characterized in that: described articulation piece comprises the semicircle boss of car beam leading portion, the fixed mount on the car beam trailing portion, and the elasticity bearing pin is housed on the fixed mount.

5, according to the bicycle of claim 4, it is characterized in that: described semicircle boss and fixed mount socket.

6, according to the bicycle of claim 4, it is characterized in that: have vertical through hole and horizontal through hole on the described semicircle boss.

7, according to the bicycle of claim 4, it is characterized in that: the vertical through hole on the described semicircle boss cooperates semicircle boss and the rotatable bonded assembly bolt of fixed mount with one, and the horizontal through hole on the semicircle boss is corresponding with the elasticity bearing pin on the described fixed mount, and there is locking gear the operating side of elasticity bearing pin.

8, according to the bicycle of right 1, it is characterized in that: quick degree of tightness part of bottom installing of described vehicle seat.

9, according to the bicycle of claim 2, it is characterized in that: described elasticity is blocked part and is comprised spring and steel ball.

10, according to the bicycle of claim 3, it is characterized in that: described Jiong shape part is fixed on the top of front fork, the one end forever is connected rotationally with a described end that is fixed on the clamping element on the lower part, the other end of Jiong shape part has the hole, corresponding with an end of the clamping element that the elasticity bearing pin is housed, there is locking gear the operating side of elasticity bearing pin.