CN2267198Y

CN2267198Y - Folding bicycle with after damping spring

Info

Publication number: CN2267198Y
Application number: CN96200770U
Authority: CN
Inventors: 王文友
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-01-24
Filing date: 1996-01-24
Publication date: 1997-11-12
Anticipated expiration: 2006-01-24

Abstract

The utility model relates to a folding bicycle with an after damping spring, which is an improvement on the common bicycle. The cross beam of the bicycle can be folded through the function of a folding clamp, and then a front and a back wheels can be kept in parallel; a handle can be folded downwards through the function of a locating clamp to exactly clamp the overlapped front and back wheels. The bicycle then is additionally provided with a damping device to reduce the trouble of bumping for the user.

Description

The folding bicycle that back damping spring is arranged

A kind of folding bicycle that back damping spring is arranged, the national uses field of vehicles.

Bicycle is through 100 years of development, because its simple structure, cheap, pollution-free is a kind of vehicle that China both urban and rural residents is liked, requisite.Particularly, develop and improve structure, the function of bicycle, its social effect is widely more arranged in automobile exhaust pollution serious day by day today.

The bicycle of selling on the market now of generally riding with the common people also exists many problems:

1. the bicycle volume is excessive, goes up downstairs, carries all inconveniences, and it is also bigger to be placed on indoor floor area;

2. the spring under tire and seat cushion, there is not other shock absorption device;

3. seat cushion is narrow, and the buttocks bearing surface is little, and is uncomfortable.

In order to solve the problem of these existence, the inventor has carried out some improvement to existing bicycle.The utility model is a kind of increased damping spring, process improvement, the Foldable bicycle that saddle is pleasant, and its objective is to the common people provides a kind of easy to carry, and floor area is little, the new bicycle of good damping effect.

The purpose of this utility model is achieved in that a kind of folding bicycle that back damping spring is arranged, it comprises moveable cart handle, front-fork column, bicycle crossbeam, vertical beam frame, flywheel, the saddle that has the center fixation hole, wherein said moveable cart handle, on its handlebar suit a sleeve pipe, in the junction of sleeve pipe and front-fork column a locator card with locator card spring is set, locator card runs through knock hole on the sleeve pipe and moveable cart last center fixation hole by the locating dowel pin on its card, and the moveable cart handle is captiveed joint with the front-fork column; Described bicycle crossbeam is provided with a folded piece on its beam column; Described vertical beam frame, its roof beam structure upper end installation one has the A-frame plate of damping spring, with the coaxial place of flywheel one rear wheel fork, the vertical beam frame that has the damping spring support is installed in the roof beam structure lower end and is captiveed joint with the pedal axis with rear wheel fork by the A-frame plate.When the need folding bicycle, make handlebar folding downwards as long as locator card pressed, the folded piece on the car beam is divided into two parts with the car beam, also can make before and after the car beam folding by kayser bolt or movable joint.

Because the technical scheme that the utility model relates to is the folding bicycle that the transformation of the way forms on the basis of ordinary bicycle, its remarkable advantage is:

A. the change of steering handle: becoming fixedly, handlebar is folding moveable cart handle;

B. becoming fixedly, crossbeam is folding crossbeam;

C., damping spring is installed on back vent top;

D. movable axis is set up in the back vent front portion;

E. change the saddle shape, it is more comfortable to make it to become.

Below in conjunction with drawings and Examples the related folding bicycle that back damping spring is arranged of the utility model is described in further detail:

Fig. 1 is the integral structure scheme drawing of folding bicycle,

Fig. 2 is the structural representation of folding bicycle handlebar,

Fig. 2-the 1st, about the assembling scheme drawing of Fig. 2,

Fig. 3 is the structural representation about the cassette folded piece of bicycle crossbeam,

Fig. 3-the 1st, about the assembling scheme drawing of Fig. 3,

Fig. 4 is the structural representation of the telescoping folded piece of bicycle crossbeam,

Fig. 4-the 1st, about the assembling matters figure of Fig. 4,

Fig. 5 is the structural representation of damping spring,

Fig. 6 is the structural representation of A-frame plate,

Fig. 7 is a back fork shaft integral structure scheme drawing,

Fig. 7-the 1st, about the assembling scheme drawing of Fig. 7,

Among the figure: 1-moveable cart handle, 2-sleeve pipe, 3-locator card, the 4-positioning clamping pin, 5-locator card spring, 6-knock hole, the 7-straight pin, the movable bayonet lock of 8-, 9-latch hole, 10-kayser bolt, 11-movable joint, 12-bicycle crossbeam, 13-car beam casing pipe, 14-card key, 15-button, the 16-spring steel plate, 17-saddle, 18, on the 19-, lower spring cup, the 20-damping spring, 21-A-frame plate, the riser of 21-a A-frame plate, the base plate of 21-b A-frame plate, 22-spring perch binding bolt, 23,24-supporting plate fix screw, fork shaft axle sleeve behind the 25-, fork shaft behind the 26-, 27-back vent axle sleeve hole, the 28-spring cotter, 29-oil hole, 30-rear wheel fork, 31-front-fork column, 32-vertical beam frame, 33-folded piece, the 34-flywheel, 35-damping spring support, 36-pedal axis, 37-back vent wheel mounting ear, 38-back vent wheel prong, 39-back vent axle mounting hole, 40-movable joint bolt of rear end plate.

By Fig. 1 to Fig. 7, the utility model it comprise the moveable cart that has the center fixation hole 1, front-fork column 31, bicycle crossbeam 12, vertical beam frame 32, flywheel 34, saddle 17, it is characterized in that: described moveable cart is 1, on its handlebar suit a sleeve pipe 2, junction at sleeve pipe 2 and front-fork column 31 is provided with a locator card 3 with locator card spring 5, and locator card 3 is captiveed joint moveable cart the center fixation hole on 1 to 1 by knock hole 6 and moveable cart that the locating dowel pin 4 on its card runs through on the sleeve pipe 2 with front-fork column 31; Described bicycle crossbeam 12 is provided with a folded piece 33 on its beam column; Described vertical beam frame 32, its roof beam structure upper end installation one has the A-frame plate 21 of damping spring 20, have the rear wheel fork 30 of damping spring support 35 with flywheel 34 coaxial places installations one in the roof beam structure lower end, vertical beam frame 32 is captiveed joint with pedal axis 36 with rear wheel fork 30 by A-frame plate 21.The folded piece 33 of described bicycle crossbeam beam column can be a scored card, and the folded part of scored card is welded as a whole with two cross sections of intercepted vehicle frame respectively, one end of scored card is provided with straight pin 7 and latch hole 9, and the other end of scored card one is provided with movable kayser 8 and kayser bolt 10.The folded piece 33 of described bicycle crossbeam beam column, it can also be the telescoping folded piece, and the telescoping folded piece is made of the two groups of movable joints 11 and movable joint bolt of rear end plates 40, card key 14, button 15, spring steel plate 6, the car beam casing pipe 13 that are welded on the car beam truncated end respectively, and movable joint 11 is sleeved in the pipe of car beam casing pipe 13.Described rear wheel fork 30 its stick have fork shaft axle sleeve 25, back fork shaft 26, back vent axle sleeve hole 27, spring cotter 28, oil hole 29, back vent wheel mounting ear 37, back vent wheel prong 38, wherein, back fork shaft 26 is contained in the back vent axle sleeve 25, back vent axle sleeve 25 is contained in the back vent axle sleeve hole 27 of rear wheel fork 30, spring cotter 28 runs through the concentric mounting hole 39 on back vent axle sleeve 25 and the back fork shaft 26, with they captive joints.Above-mentioned technical scheme is all improved on the basis of ordinary bicycle and is constituted.These improved steps are:

A. change common handlebar into the moveable cart handle, utilize sleeve pipe 2 and locator card 3, the handlebar location is blocked.Behind bicycle folding, locator card spring 5 one ends of locator card 3 bottoms can be pinned, positioning clamping pin 4 is extracted out from knock hole 6, handlebar just fold-down is folded.Unclamp locator card 3 again, make (not shown) in the handlebar hole after bayonet lock 4 reeves fold, like this, folding downwards handlebar has just blocked the front and back wheel that folds;

B. the bicycle crossbeam is folding: at first, select for use preferably steel or the oblate special section tubular product that waits to manufacture bicycle crossbeam 12, folded piece 33 is set, the intensity of increase crossbeam in the appropriate location of crossbeam.After crossbeam is folding, front and back wheel is in juxtaposition.The crossbeam foldover design is two kinds: first kind is the cassette folded piece, and this folding is that scored card is welded in respectively on two cross sections of intercepted crossbeam, and one side connects with screw or straight pin 7, and another side is designed to the movable kayser 8 resemble the door lock.When riding, lift handlebar, separately make crossbeam straight two wheels, movable kayser 8 will enter latch hole 9, and crossbeam is pinned.Otherwise, press kayser bolt 10, front and back wheel just may be folded on together.Second kind is the telescoping folded piece, is two groups of movable joints 11 are welded on the bicycle crossbeam 12, and the outside puts sleeve pipe 13, by card key 14 sleeve pipe 13 is blocked; When folding, press ﹠ hold 15, promote sleeve pipe 13 forward, expose movable joint 11, crossbeam 12 is just collapsible, supports the principle of umbrella as us.In order to improve safety factor, card key 14 can respectively be established one up and down, and spring steel plate 16 can be arranged on the centre of card key 14 and button 15.

C. the change of saddle: common saddle is high in the middle of being, both sides are low, and the buttocks bearing surface is little, and the saddle 17 after improving is according to the shaped design of buttocks, middle low, Bian Shanggao, and the buttocks bearing surface is bigger, and it is pleasant to be seated.

D. the setting of damping spring: set up a cover damping spring device on back vent top, it is made up of last

lower spring cup

18,19 and spring 20, and spring 20 links together with upper and lower spring perch 18,19.Upper spring seat 18 is fastening with the base plate 21-b of A-frame plate 21, and the riser 21-a of A-frame is fixed on the vertical beam frame 32 by

screw

23,24.

E. set up the back fork shaft: because be provided with the back damping spring, trailing wheel and whole back vent all will move up and down thereupon in the time of by bike, so set up back fork shaft 26.

The folding bicycle that the utility model relates to can also carry out following adjustment:

1, the handlebar knock hole has three: top two holes can be according to human needs fore-and-aft adjustment handlebar by bike.Following hole is the knock hole (not shown) that handlebar is rolled over the back kayser downwards;

2, Ben Che can adorn speed-changing chain;

3, fraction horsepower spark ignition engine or diesel engine power-assisted can be installed.

Claims

1. folding bicycle that back damping spring is arranged, it comprises that the moveable cart that has the center fixation hole is (1), front-fork column (31), bicycle crossbeam (12), vertical beam frame (32), flywheel (34), saddle (17), it is characterized in that: described moveable cart is (1), on its handlebar suit a sleeve pipe (2), junction at sleeve pipe (2) and front-fork column (31) is provided with a locator card (3) with locator card spring (5), and locator card (3) is captiveed joint moveable cart the center fixation hole on (1) to (1) with moveable cart by the knock hole (6) that the locating dowel pin (4) on its card runs through on the sleeve pipe (2) with front-fork column (31); Described bicycle crossbeam (12) is provided with a folded piece (33) on its beam column; Described vertical beam frame (32), its roof beam structure upper end installation one has the A-frame plate (21) of damping spring (20), have the rear wheel fork (30) of damping spring support (35) with flywheel (34) coaxial place installation one in the roof beam structure lower end, vertical beam frame (32) is captiveed joint with pedal axis (36) with rear wheel fork (30) by A-frame plate (21).

2. the folding bicycle that back damping spring is arranged according to claim 1, the folded piece (33) that it is characterized in that described bicycle crossbeam beam column can be a scored card, and the folded part of scored card is welded as a whole with two cross sections of intercepted car beam respectively, one end of scored card is provided with straight pin (7) and latch hole (9), and the other end of scored card one is provided with movable kayser (8) and kayser bolt (10).

3. the folding bicycle that back damping spring is arranged according to claim 1, the folded piece (33) that it is characterized in that described bicycle crossbeam beam column, it can also be the telescoping folded piece, and the telescoping folded piece is made of the two groups of movable joints (11) and movable joint bolt of rear end plate (40), card key (14), button (15), spring steel plate (16), the car beam casing pipe (13) that are welded on the car beam truncated end respectively, and movable joint (11) is sleeved in the pipe of car beam casing pipe (13).

4. the folding bicycle that back damping spring is arranged according to claim 1, it is stuck and has fork shaft axle sleeve (25) to it is characterized in that described rear wheel fork (30), back fork shaft (26), back vent axle sleeve hole (27), spring cotter (28), oil hole (29), back vent wheel mounting ear (37), back vent wheel prong (38), wherein, back fork shaft (26) is contained in the back vent axle sleeve (25), back vent axle sleeve (25) is contained in the back vent axle sleeve hole (27) of rear wheel fork (30), spring cotter (28) runs through the concentric mounting hole (39) on back vent axle sleeve (25) and the back fork shaft (26), with they captive joints.

5. the folding bicycle that back damping spring is arranged according to claim 1, it is characterized in that described vertical beam frame (32), the A-frame plate of installing on its roof beam structure (21), be by supporting plate fix screw (23), (24) riser (21-a) of A-frame plate (21) to be fixedly mounted on the vertical beam frame (32) respectively, the spring perch (18) of damping spring (20) is fixed by spring perch binding bolt (22) on the base plate (21-b) that is installed in A-frame plate (21).