CN2183320Y

CN2183320Y - Folding traveling bicycle

Info

Publication number: CN2183320Y
Application number: CN 93224825
Authority: CN
Inventors: 阎洪起
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-22
Filing date: 1993-09-22
Publication date: 1994-11-23
Anticipated expiration: 2003-09-22

Abstract

The utility model relates to a folding traveling bicycle. The utility model is mainly characterized in that a locking device is arranged on the vertical tube of a bicycle handle, and a fastening lock sleeve is assembled on the lower part of the locking device. The lower end of the vertical tube of the bicycle tube is provided with a gap, and a positioning pin matching with the gap is fixedly arranged in a front fork tube. The vertical tube of the bicycle handle is connected with the front fork tube by a tension spring. One side of the lower end of the front fork tube is backwards bended with an included angle, the lower end of the front fork tube is provided with a conicity, and a positioning lock sleeve with a concave gap and a positioning clamping element match with the conicity. A bicycle saddle can be moved in a back vertical beam up and down by a sliding device. Both sides of a centre shaft seat are fixed with parallel arms, a centre shaft positioning plate is arranged between the parallel arms, and the axial leads of the centre shaft seat and a positioning device have an included angle on the same plane.

Description

Folding traveling bicycle

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

Along with the continuous development of industrial technology, the kind of bicycle is increasing, and it has been indispensable walking-replacing tool during people live.Because the function that people's living standard improves constantly, existing bicycle is had is not satisfied, wish that some can be ridden, can fold again, bicycle portable, convertible various running conditions as required comes out.Existing in the market folding bicycle be on the architecture basics of ordinary bicycle, increase can rotate, move, disassembly and assembly structure, be connected with the semicircle cover with pivot pin in the middle of it as stem being divided into two parts; And for example girder is divided into two sections centres and only connects, move in order to control turning angle with a hinge, join one for another example in the bottom of vehicle seat and have the sleeve on inclined-plane and be sleeved on main beam rear end, vehicle seat can rotate on girder in slippage; Axis and girder also are to be connected etc. with the axle sleeve type structure, owing to increased said structure, it can be folded etc.But weak point is that the structure that increases is too various, complicated, causes each position action single, can not even be used to operation, and makes operating process (launch, fold) effort, time-consuming, is difficult to grasp.Moreover, monnolithic case is not attractive in appearance, and folding rear wheel lands and is difficult for shoving along, and volume is big.

The purpose of this utility model is to overcome weak point of the prior art, provide a kind of reasonable in design, simple in structure, and utilize the structure of original bicycle, structural change is carried out at positions such as front fork, vehicle seat, handlebar, back vent, make its can reach expansion, folding, operation connect be used to simple, be easy to carry, the folding bicycle for tourist of convertible various running conditions as required.

The utility model is realized by following measure.

Feature of the present utility model is to be equipped with one by fastening frame on stem, regulate bolt, the latching device that setting nut is formed, its underpart equipped one has the fastening lock tube of loading support A, there is a breach lower end of stem, associated locating dowel pin is packed in the front fork tube, stem links to each other with the upper end of front fork tube by extension spring, one end of extension spring joins with the adjusting bolt, the other end links to each other with locating dowel pin, the lower end of front fork tube is a lateral bending Qu Youyi angle backward, have tapering in the front fork tube lower end, associated also have a location lock tube that has a concave indentation, its underpart is fixed with fastening locknut, what match with concave indentation is one to have the location clamping element of loading support B, vehicle seat is by on carriage is in back vertical tube, move down, tiltedly an end of fork links to each other with vehicle seat by clasp, the other end is linked to each other with an end of back vent by extension spring, the other end of back vent together is packed on the registration device with the parallel arms that is fixed on the central axis seat both sides, a piece C is housed on parallel arms one side arm plate, prop up piece D and be packed in the back vent medial surface, the one axis locating plate that matches with back vertical tube also is housed between the parallel arms, and the axial line of central axis seat and registration device has an angle on same plane.

The profile of location described in the utility model clamping element is a U word shape.

Fastening lock tube described in the utility model is the eccentric lock tube of an inside and outside footpath decentraction.

The front fork tube described in the utility model lower end angle of a lateral bending Qu Youyi angle backward is 23 °-26 °.

The axial line of central axis seat described in the utility model and registration device has the angle of an angle on same plane be 6 °-8 °.

Carriage described in the utility model be by the inclined-plane slide plate and on slide block, fixedly the locating dowel pin of slide block constitutes.

Registration device described in the utility model is to be made of fix shaft, associated locating bush.

Advantage of the present utility model is: in reasonable in design, simple in structure, when operation (folding or launch), need do not used any instrument, and can reach and make it form to connect the inertia action fast, whenever finishing once action only needs about 20 seconds, can be transformed into various running conditions, folding back as required and can shove along, riding laborsaving, comfortable and monnolithic case attractive in appearance is a kind of ideal, practicality, folding bicycle for tourist easy to carry.

Description of drawings:

Fig. 1 is an integral structure scheme drawing of the present utility model;

Fig. 2 is an I shown in Figure 1 position structure enlarged diagram;

Fig. 3 is an II shown in Figure 1 position structure enlarged diagram;

Fig. 4 is that the A-A of Fig. 3 is to view;

Fig. 5 is the folding process scheme drawing;

Fig. 6 is the folding process scheme drawing;

Fig. 7 is a folding back scheme drawing;

Fig. 8 converts the waggon scheme drawing to.

Among the figure: 1, front-wheel 2, front fork tube 3, luggage carrier 4, latching device

5, handlebar 6, girder 7, back vertical tube 8, vehicle seat

9, hasp 10, tiltedly pitch 11, extension spring 12, carriage

13, back vent 14, trailing wheel 15, registration device 16, parallel arms

17, central axis seat 18, fastening frame 19, binding bolt 20, clamp nut

21, fastening lock tube 22, breach 23, locating dowel pin 24, extension spring

25, concave indentation 26, location lock tube 27, location clamping element 28, fastening locknut

29, inclined-plane slide plate 30, slide block 31, locating dowel pin 32, fix shaft

33, locating bush 34, axis locating plate A, B loading support

C, D prop up piece

Below in conjunction with accompanying drawing embodiment provided by the utility model is described further.

The utility model is by front-wheel 1, front fork tube 2, luggage carrier 3, latching device 4, handlebar 5, girder 6, back vertical tube 7, vehicle seat 8, hasp 9, tiltedly pitch 10, extension spring 11 carriages 12, back vent 13, trailing wheel 14, registration device 15, parallel arms 16, central axis seat 17 formations such as grade, on stem, be fixed with one by fastening frame 18, regulate bolt 19, the latching device 4 that setting nut 20 is formed, position, its underpart equipped one be connected with loading support A in, the fastening lock tube 21 of the centering type of external diameter decentraction, one side of fastening lock tube and fastening frame 18 matches, and plays the effect of handlebar and front fork tube locking with this.The lower end of stem is provided with a breach 22, and associated locating dowel pin 23 is packed in the front fork tube 2, and breach inserts the squareness that locating dowel pin can keep handlebar and front-wheel in the handlebar.Stem is connected with front fork tube 2 upper ends by extension spring 24, an end of extension spring with regulate that bolt 19 joins, the other end links to each other with locating dowel pin 23, reach handlebar and car load can be consistent with this.The lower end of front fork tube 2 is the angle of 23 °-26 ° of lateral bending Qu Youyi backward.The front fork tube lower end has tapering, associated have a taper with concave indentation 25 to locate lock tube 26, be fixed with fastening locknut 28 in its underpart, also have one to have loading support B's with concave indentation matches, its profile is the location clamping element 27 of U word shape, vehicle seat 8 by be packed in carriage 12 in the back vertical tube can be in back vertical tube on, move down, carriage be by inclined-plane slide plate 29 and on slide block 30, fixedly the locating dowel pin 31 of slide block constitutes, tiltedly an end of fork links to each other with vehicle seat by hasp structure, the other end is linked to each other with an end of back vent by extension spring 11, and the other end of back vent together is packed in by fix shaft 32 with the parallel arms 16 that is fixed on central axis seat 17 both sides, on the registration device 15 that locating bush 33 constitutes.After installing, the axial line of central axis seat and registration device has one 6 °-8 ° angle on same plane, a piece C is housed on a side arm plate of parallel arms 16, a piece D is packed in the back vent medial surface, an axis locating plate 34 that matches with back vertical tube also is housed between parallel arms, itself and car load is become one with this.Front and rear wheel is contained in respectively between the forward and backward fork, and pedal is packed in respectively on the axis of sprocket wheel both sides.

When deployed condition is transformed into rugosity, hasp structure with the vehicle seat bottom unclamps, mentions vehicle seat earlier, back, oblique fork are folded down under the effect of extension spring 11 automatically, trailing wheel is thereupon to girder bottom right side roll (see figure 5), one end of back vent top to be fixed on the parallel arms a piece C and with central axis seat 17 jack-up, at this moment, distance shortening, chain are thrown off automatically between central axis seat and the rear axle, when trailing wheel is rolled to right side (see figure 6) under the girder, central axis seat is also driven by back vent thereupon and pushes up to the girder lower end, under the carriage effect of vehicle seat in back vertical tube, landing downwards.Divide jackknife action to finish to this rear vehicle.Next unclamp fastening lock tube 21 of centering type and location clamping element 27 on the front fork tube, clockwise direction rotates about 100 ° of front fork temporarily, again with loading support A, B changes 180 ° to girder 6 by the dead ahead, at this moment, handlebar unclamps with fastening lock tube of above-mentioned centering type and location clamping element, make it from extracting and under the extension spring effect, transfer the trailing wheel inboard in the front fork tube, again front fork is rotated about 75 ° at last and make front-wheel and left side under girder, handlebar places in the middle of the two-wheeled, folding process finishes as shown in Figure 7, and make it become for a short time pull a cart (see figure 8) as vehicle seat is mentioned this moment.

When for another example folded state being transformed into deployed condition, earlier front-wheel is rotated about 75 °, make the handlebar front fork upper end of transferring in the middle of the two-wheeled, and stem is inserted in the front fork tube (be on the stem breach insert the locating dowel pin that is packed in the front fork tube) this state and can use as waggon.Then rotate A180 ° on loading support, handlebar be locked (because of loading support A links to each other with the fastening lock tube of centering type) thereupon, then rotate about 100 ° of the location clamping element that has luggage carrier B again, the location clamping element cooperates with concave indentation on the lock tube 26 of location to be fixed front fork tightly.The location clamping element makes progress in the circular arc of concave indentation or rotates, when upwards turning to the summit and loading support A pin and to make it become loading support body 3, vehicle seat is pulled out, also upwards mentioned, along with oblique fork, back vent move, after back vent moved to and puts in place, the piece D on it withstood slide block in the carriage just, vehicle seat is fixed, when trailing wheel moves backward to ultimate range, tiltedly fork also just in time places below the vehicle seat and by hasp and fixes on it, and chain can hang on the flywheel automatically in expansion process.

Claims

1, a kind of folding bicycle for tourist is by handlebar, luggage carrier, front fork tube, before, trailing wheel, girder, back vertical tube, back vent, tiltedly pitch, central axis seat, sprocket wheel, formations such as pedal, it is characterized in that on stem, being equipped with one by fastening frame, regulate bolt, the latching device that setting nut is formed, its underpart equipped one has the fastening lock tube of loading support A, there is a breach lower end of stem, associated locating dowel pin is packed in the front fork tube, stem links to each other with the upper end of front fork tube by extension spring, one end of extension spring joins with the adjusting bolt, the other end links to each other with locating dowel pin, the lower end of front fork tube is a lateral bending Qu Youyi angle backward, have tapering in the front fork tube lower end, associated also have a location lock tube that has a concave indentation, its underpart is fixed with fastening locknut, what match with concave indentation is one to have the location clamping element of loading support B, vehicle seat is by on carriage is in back vertical tube, move down, tiltedly an end of fork links to each other with vehicle seat by clasp, the other end is linked to each other with an end of back vent by extension spring, the other end of back vent together is packed on the registration device with the parallel arms that is fixed on the central axis seat both sides, a piece C is housed on parallel arms one side arm plate, prop up piece D and be packed in the back vent medial surface, the one axis locating plate that matches with back vertical tube also is housed between the parallel arms, and the axial line of central axis seat and registration device has an angle on same plane.

2, folding bicycle for tourist according to claim 1, the profile that it is characterized in that locating clamping element is a U word shape.

3, folding bicycle for tourist according to claim 1 is characterized in that fastening lock tube is the eccentric lock tube of an inside and outside footpath decentraction.

4, folding bicycle for tourist according to claim 1, it is characterized in that the front fork tube lower end backward the angle of a lateral bending Qu Youyi angle be 23 °-26 °.

5, folding bicycle for tourist according to claim 1, the axial line that it is characterized in that central axis seat and registration device has the angle of an angle on same plane be 6 °-8 °.

6, folding bicycle for tourist according to claim 1, it is characterized in that carriage be by the inclined-plane slide plate and on slide block, fixedly the locating dowel pin of slide block constitutes.

7, folding bicycle for tourist according to claim 1 is characterized in that registration device is to be made of fix shaft, associated locating bush.