CN2639153Y

CN2639153Y - Bicycle wiht double-folding crossbar

Info

Publication number: CN2639153Y
Application number: CN 03206652
Authority: CN
Inventors: 王平典
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-01
Filing date: 2003-08-01
Publication date: 2004-09-08
Anticipated expiration: 2013-08-01

Abstract

The utility model discloses a bicycle with double-folding crossbar, and the crossbar is provided with a front trunk, a front-fork standpipe and a saddle standpipe; wherein, the front trunk is arranged transversally to connect the front fork standpipe and the saddle standpipe together, and a fixed rear-wheel frame which stretches to the back is arranged on the saddle standpipe; the utility model is characterized in that: a front folding joint and a back folding joint are arranged respectively at suitable places adjacent to the front and back end of the front main pole, and the directions of the front and back folding joint are opposite; by adopting the installation above, the front fork standpipe and the saddle standpipe are pivotedly folded up respectively towards the two sides of the front main pole; the front fork standpipe and the saddle standpipe are folded up to close to the two side of the main pole, which shortens the whole volume of the bicycle to be easy to package and collect.

Description

Trunk twofold bicycle before the vehicle frame

(1) technical field under

The utility model system is about trunk twofold bicycle before a kind of vehicle frame, especially trunk can carry out the folding of bicycle structure twice before referring to a kind of vehicle frame, can significantly reduce the volume of timber behind the bicycle folding, be convenient to the advantage and the effect of packing and collecting, belong to technical field of bicycles to have.

(2) background technology

Known bicycle manufacturer is reduction bicycle body volume, so design is provided with one group of folding joint on the trunk before cycle frame, make bicycle body be divided into forward and backward two sections, making bicycle body can folding joint be the folding relatively closing in center, with the entire length of reduction bicycle, and then have the reduction packing volume of timber, be convenient to the advantage of transporting and collecting.Though but the structure design of known Folding Bicycle can reduce the entire length of bicycle body, the bicycle after folding still has the excessive phenomenon of volume to exist and have need improvements.

(3) summary of the invention

The purpose of this utility model has been that trunk twofold bicycle before a kind of vehicle frame is provided, and mainly has the volume of timber that can significantly reduce behind the bicycle folding, makes to have to be convenient to the advantage and the effect of packing and collecting.

Show purpose for reaching, trunk before trunk twofold bicycle before a kind of vehicle frame of the utility model, this cycle frame have, a standpipe of front fork and a cushion standpipe; Wherein, this preceding trunk is to be horizontally set in order to link standpipe of front fork and cushion standpipe, then is installed with the rear wheel frame of rear extension on one day on the cushion standpipe body; It is characterized in that: preceding trunk is a folding joint and a back folding joint before the appropriate position near forward and backward two ends is respectively equipped with one, and folding joint is reverse each other with the folding direction of back folding joint before being somebody's turn to do; Mat it, make standpipe of front fork and cushion standpipe respectively forward the trunk both sides pivot foldingly, and make standpipe of front fork and cushion standpipe fold the both sides of closing respectively, with the reduction bicycle integral body volume of timber and have and be convenient to the advantage and the effect of packing and collecting at preceding trunk.

Trunk twofold bicycle before a kind of vehicle frame of the utility model, its advantage is: the volume of timber after folding is little, is convenient to packing and collection.Simple in structure, design science has application value.

(4) description of drawings

Fig. 1 schematic side view of the present utility model

Schematic top plan view after Fig. 2 the utility model folds

Fig. 3 the utility model group is found into the schematic side view of complete bicycle

Fig. 4 the utility model folds diagram of work one

Fig. 5 the utility model folds diagram of work two

Fig. 6 the utility model folds diagram of work three

Fig. 7 the utility model folds finishes figure

Number in the figure is as follows:

Folding joint before the trunk 111 before 1 vehicle frame 11

112 back folding joint 12 standpipe of front fork 13 cushion standpipes

131 rear wheel frames, 2 lever vertical rods, 21 folding joints

3 cushion vertical rods

(5) specific embodiment

At first see also shown in Figure 1, trunk twofold bicycle 1 before a kind of vehicle frame of the utility model, mainly comprise one before trunk 11, a standpipe of front fork 12 and a cushion standpipe 13; Wherein:

Preceding trunk 11 is to be horizontally set in order to link standpipe of front fork 12 and cushion standpipe 13; Should before trunk 11 in being respectively equipped with forward and backward folding joint 111,112 near the appropriate position at forward and backward two ends, and should before folding joint 111 reverse each other with the folding direction of back folding joint 112;

Standpipe of front fork 12 is a hollow tube and slightly is skewed setting, plugs (as shown in Figure 3) for lever vertical rod 2 (promptly being connected with front fork stem downwards);

Cushion standpipe 13 homologys, one hollow tube and slightly be skewed setting plugs (as shown in Figure 3) for cushion vertical rod 3; On cushion standpipe 13 bodys and be installed with the rear wheel frame 131 of rear extension on one day.

Use setting, because the folding direction of forward and backward folding joint 111,112 is just in time opposite, discharge forward and backward folding joint 111,112 so can operate, making standpipe of front fork 12 and cushion standpipe 13 again is that rotating shaft pivots folding in trunk 11 both sides forward with forward and backward folding joint 111,112 respectively, make standpipe of front fork 12 and cushion standpipe 13 fold the both sides of closing respectively at preceding trunk 11, as shown in Figure 2, be convenient to the advantage and the effect of packing and collecting to reduce this cycle frame 1 whole volume of timber and to have.

Then see also shown in Figure 3 about members such as the utility model collocation lever vertical rod 2 and cushion vertical rods 3 with the state of forming complete bicycle, be the volume of timber (comprising length and height) that effectively reduces bicycle, the collapsible lever vertical rod 2 of the special collocation of the utility model is demonstrated and is illustrated, folds effect to reach the best; Next please cooperate Fig. 4 to shown in Figure 7, when folding, at first discharge the folding joint 21 of lever vertical rod 2 and bend lever vertical rod 2 and be as shown in Figure 4 the state that folds (joint 21 that folds of lever vertical rod 2 is to adopt the setting of miter angle degree, so lever vertical rod 2 is collapsible in preceding trunk 11 outsides), and then the height of reduction cushion vertical rod 3, as shown in Figure 5, just can reduce the whole height of bicycle thus earlier; Next folding joint 111 before discharging on the preceding trunk 11, please cooperate shown in Figure 6, make standpipe of front fork 12 be rotating shaft together with folding joint before the members such as front fork, lever vertical rod 2 111, forward trunk 11 1 sides pivot and closing in preceding trunk 11 1 sides (the lever vertical rod 2 that folded this moment be located on before trunk 11 outsides); Discharge back folding joint 112 at last again, please cooperate shown in Figure 7, make cushion standpipe 13 be rotating shaft together with folding joint after the members such as rear wheel frame 131 and cushion vertical rod 3 112, forward trunk 11 in addition sides pivot and closing in preceding trunk 11 side in addition, thus, just can significantly reduce vehicle frame 1 length, with the whole volume of timber of reduction bicycle and then have and be convenient to the advantage and the effect of packing and collecting.

What need further specify is again, about forward and backward folding joint 111,112 of above release and the order that folds of operation, mainly be to describe for convenience and set, but operation folding of the present utility model is not to immobilize in proper order, user and operator certainly can also be according to hobby or the customs of oneself, select to discharge before and after folding joint 111,112 simultaneously, synchronous operation folds standpipe of front fork 12 and cushion standpipe 13 synchronously.

Claims

1, trunk twofold bicycle before a kind of vehicle frame, trunk before this cycle frame has, a standpipe of front fork and a cushion standpipe; Wherein, this preceding trunk is to be horizontally set in order to link standpipe of front fork and cushion standpipe, then is installed with the rear wheel frame of rear extension on one day on the cushion standpipe body; It is characterized in that: preceding trunk is a folding joint and a back folding joint before the pre-position near forward and backward two ends is respectively equipped with one, and folding joint is reverse each other with the folding direction of back folding joint before being somebody's turn to do; Mat it, make standpipe of front fork and cushion standpipe respectively forward the trunk both sides pivot foldingly, and make standpipe of front fork and cushion standpipe fold the both sides of closing respectively at preceding trunk.