CN2196079Y

CN2196079Y - Portable folding bicycle with variable speed gear

Info

Publication number: CN2196079Y
Application number: CN 94219911
Authority: CN
Inventors: 邵传江
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-31
Filing date: 1994-08-31
Publication date: 1995-05-03
Anticipated expiration: 2004-08-31

Abstract

The utility model relates to a portable folding bicycle with a variable speed gear. A bicycle handle folding mechanism (1), a middle beam folding mechanism (2), a bicycle saddle folding mechanism (5) and a pedal folding mechanism (4) are arranged on the bicycle. The drive shaft (6) of a speed increasing mechanism (3) is arranged in the shaft of a bicycle rear wheel, and a driven shaft (7) is arranged between a middle beam and the supporting beam of a bicycle saddle. The bicycle handle folding mechanism (1) is the same as the bicycle saddle folding mechanism (5), and torsion spring shafts (10, 15) are arranged between folding parts and fixed parts. Rocking snap rings (12, 17) are arranged on the folding parts, and pins (11, 16) are fixed on the fixed parts. The pedal folding mechanism (4) is only provided with a torsion spring shaft (20). The middle beam folding mechanism is composed of an upper beam, a lower beam, a supporting plate and nine spring hinge plates.

Description

Portable folding bicycle with variable speed gear

The utility model relates to a kind of vehicle, and it is the portable folding speeding-up bike.

The bicycle of people's application at present, car body is long, volume is big, difficult, not easy to store, especially the building and last of living, come off duty and take the subway, the people of electric car, because of bicycle carries inconvenience, have to leave building outside and subway mouth in, the electric car exit not only makes bicycle taste varieties of wind and weather and Exposure to Sunlight, but also stolen losing and the parts breakage often taken place, not only cause economic loss and mental suffering to people, but also influence the stable of social security, bicycle storing not only influences the appearance of the city and traffic outside, also need take a large amount of valuable places, country and unit waste fund are built bicycle shed simultaneously.

The purpose of this utility model is to overcome existing bicycle weak point and designs the little folding secondary speedup bicycle easy to carry of a kind of volume.

The purpose of this utility model is to realize by following design plan, bicycle is provided with handlebar folding mechanism (1) central sill fold mechanism (2), vehicle seat fold mechanism (5), pedal fold mechanism (4), the axle drive shaft (6) of speed increasing mechanism (3) is in rear vehicle shaft, and driven shaft (7) is contained between central sill and the vehicle seat support beam.Handlebar folding mechanism (1) is identical with vehicle seat fold mechanism (5), adorn torsion axis (10,15) between folded part and the fixed part, folded part is installed a swing snap ring (12,17), fixed part is fixed a pin (11,16), and pedal fold mechanism (4) has only torsion axis (20).Central sill fold mechanism (2), put the beams in place and each three sections of underbeams between hinged forming, fixing bearing plate (21,22,23) respectively between upper and lower each Duan Liang is fixed nine plate spring folding plates (24) at three bearing plates middle parts.Connect by 6 vertical torsion axis (34,37,35,38,36,39) and 6 horizontal torsion axis between nine spring hinge flaps, vertically torsion axis is on folding plates, laterally torsion axis is below folding plates, the drive sprocket (46) of speed increasing mechanism (3) is connected with driven minor sprocket (47) through chain, driven hinge wheel (48) is connected with flywheel (49) through chain, and flywheel shaft and rear wheel are fixed.

Advantage of the present utility model: because no axis, the bicycle volume is little, and is in light weight, collapsible, deposits to carry to carry all to make things convenient for.

Below to description of drawings:

Fig. 1---portable folding speeding-up bike

Fig. 2---handlebar folding mechanism

Fig. 3---swing snap ring structure

Fig. 4---vehicle seat fold mechanism

Fig. 5---pedal fold mechanism

Fig. 6---central sill fold mechanism

Fig. 7---Fig. 6 A is to view

Fig. 8---nine folding plates constructionals drawing

The driven shaft of Fig. 9---speed-changing mechanism

The axle drive shaft of Figure 10---speed-changing mechanism

In conjunction with the accompanying drawings embodiment of the present utility model is elaborated, bicycle is provided with handlebar folding mechanism (1) central sill fold mechanism (2), vehicle seat fold mechanism (5), pedal fold mechanism (4), the axle drive shaft (6) of speed increasing mechanism (3) is in rear vehicle shaft, and driven shaft (7) is contained between central sill and the vehicle seat support beam.Handlebar folding mechanism (1) is connect by torsion axis (10) between left and right sides folding grip (8) and the middle handle (9), and middle each fixes a pin (11) two ends, fixes a swing snap ring (12) on two folding grips (8).Vehicle seat fold mechanism (5), vehicle seat fold between support beam (13) and the vehicle seat fixed bearing beam (14) and are connect by torsion axis (15), and set pin (16) on the vehicle seat fixed bearing beam is fixed a swing snap ring (17) on the folding support beam of vehicle seat.Pedal fold mechanism (4) is adorned torsion axis (20) between pedal beam (18) and the pedal (19).When pin leaves pedal, the pedal auto-folder, pin steps on pedal, and pedal just launches.Central sill fold mechanism (2), put the beams in place and each three sections of underbeams between hinged forming, fixing bearing plate (21,22,23) respectively between upper and lower each Duan Liang is fixed nine plate spring folding plates (24) at three bearing plates middle parts.Nine plate spring folding plates hinge flaps (25) and (26), (26) with (27), (28) with (29), (29) with (30), (31) with (32), (32) vertical torsion axis (34 of dress and between (33), 37,35,38,36,39) on folding plates, hinge flap (25) and (28), (28) with (31), (26) with (29), (29) with (32), (27) with (30), the horizontal torsion axis (40 of dress between (30) and (33), 43,41,44,42,45) below folding plates, hinge flap (28,29,30) be separately fixed at bearing plate (21,22,23) on the stage casing, and the line of centers of vertical torsion axis, with upper beam, three sections jointed shaft line of centerss of underbeam are coaxial.When upper and lower hinge flap (25,26,27,31,32,33) during perpendicular to middle part hinge flap (28,29,30), central sill stretches, if think the front and back wheel folding together, with the hand side's of bringing up to hinge flap (25,26,27) upwards, the side's of moving down folding dough sheet (31,32,33) is vertically just finished under torsion spring (34,35,36,37,38, the 39) effect downwards.

Claims

1, a kind of portable folding speeding-up bike, it is characterized in that bicycle is provided with handlebar folding mechanism (1) central sill fold mechanism (2), vehicle seat fold mechanism (5), pedal fold mechanism (4), the axle drive shaft (6) of speed increasing mechanism (3) is in rear vehicle shaft, and driven shaft (7) is contained between central sill and the vehicle seat support beam.

2, portable folding speeding-up bike according to claim 1, it is characterized in that handlebar folding mechanism (1), connect by torsion axis (10) between left and right sides folding grip (8) and the middle handle (9), middle each fixes a pin (11) two ends, fixes a swing snap ring (12) on two folding grips (8).

3, portable folding speeding-up bike according to claim 1, it is characterized in that vehicle seat fold mechanism (5), vehicle seat folds between support beam (13) and the vehicle seat fixed bearing beam (14) and is connect by torsion axis (15), set pin (16) on the vehicle seat fixed bearing beam is fixed a swing snap ring (17) on the folding support beam of vehicle seat.

4, portable folding speeding-up bike according to claim 1 is characterized in that pedal fold mechanism (4), adorns torsion axis (20) between pedal beam (18) and the pedal (19).

5, portable folding speeding-up bike according to claim 1, it is characterized in that central sill fold mechanism (2), upper beam and underbeam be hinged forming between three sections respectively, fixing bearing plate (21,22,23) respectively between upper and lower each Duan Liang is fixed nine plate spring folding plates (24) at three bearing plates middle parts.

6, according to claim 1,15 described portable folding speeding-up bikes, it is characterized in that nine plate spring folding plates hinge flaps (25) and (26), (26) with (27), (28) with (29), (29) with (30), (31) with (32), (32) vertical torsion axis (34 of dress and between (33), 37,35,38,36,39) on folding plates, hinge flap (25) and (28), (28) with (31), (26) with (29), (29) and (32), (27) and (30), (30) the horizontal torsion axis (40 of dress and between (33), 43,41,44,42,45) below folding plates, hinge flap (28,29,30) be separately fixed at bearing plate (21,22,23) on the stage casing, and the line of centers of vertical torsion axis, with upper beam, three sections jointed shaft line of centerss of underbeam are coaxial.

7, portable folding speeding-up bike according to claim 1, the drive sprocket (46) that it is characterized in that speed increasing mechanism (3) is connected with driven minor sprocket (47) through chain, driven hinge wheel (48) is connected with flywheel (49) through chain, and flywheel shaft and rear wheel are fixed.