CN2143195Y

CN2143195Y - Folding bicycle

Info

Publication number: CN2143195Y
Application number: CN 92244203
Authority: CN
Inventors: 戴春委
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-21
Filing date: 1992-12-21
Publication date: 1993-10-06
Anticipated expiration: 2002-12-21

Abstract

The utility model relates to a folding type bicycle. In order to provide the folding type bicycle with large reduction ratio, simple structure and convenient operation after the folding type bicycle is folded, a folding type bicycle whose front bicycle frame and rear bicycle frame are hinged mutually is provided. The front bicycle frame is provided with a horizontal sleeve pipe seat whose opening is at the side surface, a rotation lock rod and a clasp, the rear bicycle frame is provided with a horizontal rod whose front end is provided with a convex column, a clasp seat and a short rod with a joint lock sheet, and the pipe wall of a handlebar sleeve which is arranged at the upper end of a front fork is provided with a screw hole with a lock rod.

Description

Folding bicycle

The utility model belongs to bicycle, belongs to Folding Bicycle especially.

The folding back of existing Folding Bicycle reduction ratio is little, only is applicable to minibike, the discomfort of not only riding, and complex structure, operation inconvenience.

The purpose of this utility model provides big, simple in structure, the easy to operate Folding Bicycle of a kind of folding back reduction ratio.

The utlity model has mutually hinged forward and backward vehicle frame, the locking plate, rotation locking bar and the clasp that have the horizontal case seat of lateral opening, bar with lock on the front vehicle frame, have the horizon bar of front end band projection, quarter butt and the Button Block that band engages locking plate on the back vehicle frame, be contained on the handlebar grips cover tube wall of front fork upper end and have the screw that locking bar is installed.

Because the forward and backward vehicle frame of the utility model is mutually hinged, front vehicle frame has locking plate, rotation locking bar and the clasp of horizontal case seat, bar with lock, back vehicle frame has the horizon bar of band projection, quarter butt and the Button Block that band engages locking plate, when forward and backward vehicle frame of the present utility model after hinge launches, the horizon bar of band projection is stuck on the horizontal case seat and by the locking plate of bar with lock and pins, the quarter butt of band joint locking plate contacts with front vehicle frame and is screwed into the screw that engages on the locking plate through the rotation locking bar on the front vehicle frame, makes forward and backward vehicle frame locking; When folding, unclamp the handgrip sleeve pipe bar of locking, handgrip is forwarded to and the vehicle frame parallel position, front vehicle frame is rolled over to overlapping with the back vehicle frame and fasten through clasp and Button Block backward around hinge, Folding Bicycle is rolled over to minimum size, thereby reached the utility model purpose.

Fig. 1 is the utility model structural representation front elevation.

Fig. 2 is the folding scheme drawing of the utility model handle.

Fig. 3 is the local structure for amplifying schematic sectional view of A portion among Fig. 2.

Fig. 4 is the forward and backward vehicle frame folding state of a utility model perspective view.

Fig. 5 is the local structure for amplifying scheme drawing of B portion among Fig. 1.

Fig. 6 is a C-C cutaway view Amplified image among Fig. 1.

Fig. 7 is a diagrammatic top view in the utility model rotary folding.

Fig. 8 is the utility model rotary folding end of a period diagrammatic top view.

Fig. 9 illustrates three-dimensional body figure for D portion structure for amplifying among Fig. 8.

Figure 10 is a tightening state structural representation block diagram not among Fig. 9.

Below in conjunction with accompanying drawing the utility model is further elaborated.

The utlity model has front vehicle frame 1 and back vehicle frame 2, before, back vehicle frame 1,2 are hinged on the hinge 3, front vehicle frame 1 is made of front fork 11 and inclined tube 14, the handgrip sleeve pipe 12 of band handgrip 13 is equipped with in the upper end of front fork 11, has screw 121 on the tube wall of handgrip sleeve pipe 12, locking bar 122 is screwed in the screw 121 and with the handgrip sleeve pipe and is locked on the front fork 11, front-wheel 4 is equipped with in the lower end of front fork 11, the side of front fork 11 has the clasp 111 with half garden breach 112, inclined tube 14 middle parts have the horizontal case seat 15 of lateral opening, the locking plate 161 of bar 16 with lock is housed in the side of horizontal case seat 15, and the not end that is section at inclined tube 14 has the lug 17 that rotation locking bar 171 is installed; Back vehicle frame 2 is made of center pillar 21 and back vent 22, saddle 5 is equipped with in the upper end of center pillar 21, the middle part of center pillar 21 has the horizon bar 23 of front end band projection 24, one side of projection 24 is equipped with locking plate 25, the lower end of center pillar 21 has the five-way pipe 26 that pedal 6 is installed, five-way pipe 26 front ends have the quarter butt 27 that the upside band engages locking plate 28, back vent 22 is made of horizon bar 224 and brace 225, coupling end at horizon bar 224 and brace 225 is equipped with trailing wheel 7, have Button Block 221 in brace 225 sides, it is the knob 222 of semicolumn breach 223 that the lower end is housed on the Button Block 221.Hinge 3 is made up of the following central siphon 32 that last central siphon 31 and central authorities are installed with pivot pin 33, and last central siphon 31 is enclosed within on the pivot pin 33, and on the horizon bar 23 of last central siphon 31 vehicle frame 2 after connection pipe 34 is contained in, following central siphon 32 is contained on the inclined tube 14 of front vehicle frame 1 through connection pipe 35.

Claims

1, a kind of Folding Bicycle with interconnected front vehicle frame and back vehicle frame, front vehicle frame is made of front fork and inclined tube, and the handgrip sleeve pipe is equipped with in the front fork upper end, and handgrip is equipped with in the upper end of handgrip sleeve pipe, and front-wheel is equipped with in the front fork lower end; Back vehicle frame is made of center pillar and back vent, saddle is equipped with in the center pillar upper end, and the lower end of center pillar has the five-way pipe that pedal is installed, and back vent is made of horizon bar and brace, the coupling end of horizon bar and brace is equipped with trailing wheel, it is characterized in that described front vehicle frame and back vehicle frame are for being articulated and connected; Has the screw that locking bar is installed on the handlebar grips cover tube wall; The middle part of front vehicle frame inclined tube has the horizontal case seat of lateral opening, and the locking plate of bar with lock is housed in the side of casing seat, and the end that is section at inclined tube has the lug that the rotation locking bar is installed; The middle part of back vehicle frame center pillar has the horizon bar of front end band projection, and a side of projection is equipped with locking plate; Center pillar lower end five-way pipe front end has the quarter butt of with lock of upside, has the screw that combines with the rotation locking bar when launching on the locking plate.

2,, it is characterized in that described front fork side has the clasp of band half round cut according to the described Folding Bicycle of claim 1; The brace side of back vent has Button Block, and the knob of lower end for the half garden post that can coincide with half garden breach is housed on the Button Block.