CN2034570U

CN2034570U - Folding bicycle pedal

Info

Publication number: CN2034570U
Application number: CN 88212838
Authority: CN
Inventors: 张克俊
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-04-07
Filing date: 1988-04-07
Publication date: 1989-03-22

Abstract

The utility model discloses a folding bicycle pedal. The folding bicycle pedal comprises a working element, a U-shaped lamina spring which is installed in the working element, a fixed ring, a compressing spring, an axle and the original pedal of the bicycle. A hole is drilled on the lower hole wall of the working element and the inner of the hole is provided with the U-shaped lamina spring which can change the axle position. One end of the axle which is provided with a through hole is clamped into the working element which is drilled with a spiral hole and the spiral hole of the working element coincides with the through hole of the axle. A double-head bolt is installed in the inner of the hole and is used as a rotary axle while the fixed ring is installed on the axle, the dummy club of the fixed ring is clamped into the groove of the working element, and the compressing spring and a foot pedal are fixedly adpressed to a bottom disk of the fixed ring; thereby, the folding bicycle pedal is formed.

Description

Folding bicycle pedal

The utility model relates to a kind of Folding Bicycle stretcher.

Existing bicycle pedal all draws threaded axle directly to constitute with crank connecting link by being contained in stretcher on the axle and end, so can not fold.When parking bicycle in public places, owing to protruding 28 centimetres of bicycle two stretchers with this stretcher structure.Therefore each bicycle takes up an area of broad, if will draw close mutually between car and the car, the stretcher of bicycle just intersects mutually, bring very big difficulty for the access bicycle, the person of picking up the car is difficult for car is taken out, and bicycle parking person is difficult for again car is put into, and also can knock or scratch other bicycles over slightly because of carelessness, bicycle parking is when indoor, because stretcher stretches out and car can't be drawn close wall.Take up an area of broad, influence people's normal life, particularly the small size room.Park a bicycle again.Just more there has not been owner's the ground of keeping a foothold.The walking of pushing the machine in public places, and during carrying bicycle turnover building, outwardly directed two stretchers, people and scratch the wall of building easily usually damages.

The purpose of this utility model is exactly to propose a kind of Folding Bicycle stretcher that simple parts just can fold stretcher and put down easily that only increases.

This Folding Bicycle stretcher is by work piece (1), set collar (2), compression spring (3), axle (4), as the thru-bolt (5) of turning cylinder, foot-operated (9) and the U-shaped Leaf spring (6) and the screw (12) that are contained in the work piece (1) are formed.On the axle (4) of dress foot-operated (9), pasting foot-operated (9) compression spring (3) is being housed, the other end ground that the chassis of set collar (2) is being pasted spring (3) is contained in set collar (2) on the axle (4), the boss of set collar (2) is stuck in the groove of work piece (1), be stuck on the appropriate location of the corresponding hole wall of two-phase and be drilled with screw (7), and have a axle (4) in the work piece (1) of groove, on the appropriate location of its end, be drilled with through hole (8), on the work piece (1) institute auger shell hole (7) with the axle on the institute hole of opening (8) coincide together fully, thru-bolt (5) as turning cylinder is housed in the hole that overlaps, the U-shaped Leaf spring (6) that can change axle (4) position also is housed in work piece (1), the threaded end of work piece (1) car is screwed in the crank (11).Constitute the folding structure of bicycle pedal thus.Original stretcher of bicycle need not to do any change, only need to pull down and be contained on the axle (4) just from former pedal shaft, the external diameter of axle (4) and the original pedal shaft of bicycle, shape is the same, the one end dress foot-operated (9) of axle (4), on the appropriate location of other end end, be drilled with the same through hole (8) in aperture of institute auger shell hole (7) on aperture and the work piece (1), to pretend is the thru-bolt (5) of turning cylinder, the end that is drilled with through hole (8) on the axle (4) is stuck in the work piece (1), one end car of work piece (1) screw thread of connecting crank (11), the other end is drilled with and makes work piece (1) can be stuck in the hole of axle on (4), to block axle (4), the last hole wall in hole has removed a part, be drilled with hole (10) on the appropriate location of following hole wall, the U-shaped Leaf spring (6) that can change axle (4) position is housed in hole (10), be drilled with screw (7) and have groove on the appropriate location of the corresponding hole wall of two-phase.The trough rim of groove can also have bayonet socket, snaps in the boss that makes things convenient for set collar (2), and screw (7) is in order to fixing thru-bolt (5).One end of set collar (2) is made disc, and the other end leaves boss.Also can have bayonet socket on the boss, snap in the groove of work piece (1) to make things convenient for boss, the height of boss and the degree of depth of groove are complementary.The centre of set collar (2) has and makes set collar (2) can be contained in the through hole of axle on (4), spring (3) is contained in axle (4) last end and is pasting foot-operated (9), the other end is pasting the chassis of set collar (2), the groove of the boss of set collar (2) and work piece (1) chucking under the elastic force effect of spring (3), thus make axle (4) and crank (11) keep vertical.Whole stretcher is unlikely to fold up, need to ride (9) when folding up, at first outwards pedal set collar (2) with pin, the boss of set collar (2) is withdrawed from from the groove of work piece (1), upwards skew of elastic force effect lower shaft (4) at U-shaped Leaf spring (6), be contained in the also upwards skew thereupon of set collar (2) on the axle (4), just make the boss of set collar (2) and the groove mutual dislocation of work piece (1), therefore the boss groove that just can not snap in work piece (1) has suffered, and upwards pedals foot-operated (9) whole stretcher with pin again and just makes progress rotation and be folded in the front of crank (11) along turning cylinder (5).When by bike, step on (9) with the downward presser feet of pin, make axle (4) go to and be drilled with on the complete position contacting of following hole wall in hole (10), under the elastic force effect of compression spring (3), the boss of set collar (2) snaps in the groove of work piece (1) and tightens stretcher and just fixed.Each parts of forming whole device can be cylinder iron, common straightcarbon steel, carbon constructional quality steel or other suitable material manufacture, and the size of Folding Bicycle stretcher can determine that miscellaneous part changes in proportion according to the needs of various different automobile types.

The utility model has been compared following advantage with original bicycle pedal: when parking bicycle in public places, to ride (9) folds up, can lean on tightlyer between car and the car, thereby reduce each bicycle area occupied, enlarge the bicycle parking quantity of Cycle park; After drawing close mutually between bicycle and the bicycle, stretcher intersects never again or scratches other cars, thereby has made things convenient for people's access car; Damage people and scratch building walls of stretcher has been avoided in push the machine walking and carrying during bicycle.Also have applicable surface wide in addition, be applicable to the needs of various bicycle repacking, simple in structure, reliable operation, cost is low, is easy to the advantage of batch manufacturing.

Description of drawings:

The cutaway view that Fig. 1 cuts open along axial line for the Folding Bicycle stretcher wherein

1 is work piece, and 2 is set collar, and 3 is compression spring, and 4 is axle, and 5 is thru-bolt, and 6 is the U-shaped Leaf spring, and 9 for foot-operated, 10 holes for dress U-shaped Leaf spring (6), and 12 is screw

The scheme drawing that Fig. 2 puts down for the Folding Bicycle stretcher.Wherein 1 is work piece, and 2 is set collar, and 3 is compression spring, and 4 is axle, and 5 is thru-bolt, and 6 is the U-shaped Leaf spring, and 9 for foot-operated, 10 holes for dress U-shaped Leaf spring (6), and 11 is crank, 12 is screw.

The scheme drawing that Fig. 3 has folded for the Folding Bicycle stretcher.

Embodiment

Original stretcher of bicycle need not to do any change to the Folding Bicycle stretcher as foot-operated (9) with bicycle original foot-operated, can directly pull down from former pedal shaft to be contained on the axle (4).Axle (4) is raw material with cast iron, behind casting, all external diameter and the shape with the original pedal shaft of bicycle is the same with shape to adopt turning processing to make its external diameter again, the one end dress foot-operated (9) of axle (4), be drilled with the same through hole (8) in aperture of institute auger shell hole (7) on aperture and the work piece (1) on the appropriate location of other end end, to pretend is the thru-bolt (5) of turning cylinder, pasting foot-operated (9) compression spring (3) is housed, compression spring (3) is raw material with the spring steel for the dextrorotation compression spring.The external diameter of compression spring (3) is not more than the chassis of set collar (2), the internal diameter of compression spring (3) is greater than the diameter of axle (4), the effect of compression spring (3) is to make the boss of set collar (2) can snap in the interior and mutual chucking of groove of work piece (1), thereby make whole stretcher and crank (11) keep vertical, the other end of compression spring (3) is attached on the chassis of set collar (2), set collar (2) is a raw material with No. 45 steel, disc is processed in the bottom, be milled with boss above, can also mill a bayonet socket on the boss, snap in the groove of work piece (1) to make things convenient for boss.The height of boss and the degree of depth of groove are complementary.The centre of set collar (2) is drilled with the through hole that enables to be contained on the axle (4), with an end of the contacted work piece of set collar (2) (1) be cylindrical, the aperture in institute auger shell hole is complementary on the diameter of cylinder and the crank (11), the get on the bus screw thread of connecting crank (11) of cylinder.The other end is the smaller cylinder of chassis diameter than set collar (2).Be drilled with on the cylinder and make work piece (1) can be stuck in the hole of axle on (4).The last hole wall mill off in hole a part.The width of mill off part is at least greater than the diameter of axle (4), be drilled with hole (10) on the appropriate location of following hole wall, the U-shaped Leaf spring (6) that can change axle (4) position is housed in the hole (10), fixing with screw (12), U-shaped Leaf spring (6) also is raw material with the spring steel, be drilled with screw (7) on the appropriate location of the corresponding hole wall of two-phase, and be milled with groove, the trough rim of groove can also be milled with bayonet socket.Snap in the boss that makes things convenient for set collar (2).The aperture of screw (7) is consistent with the aperture of through hole (8), screws in to make things convenient for thru-bolt (5).During installation, at first U-shaped Leaf spring (6) is packed in the hole (10) of work piece (1), the threaded end of work piece (1) car is screwed in the crank (11) again work (1) is fixed on the crank (11), an end that again axle (4) is drilled with through hole (8) snaps on the work piece (1) in institute's perforate.Institute auger shell hole (7) overlaps fully on the through hole (8) of axle on (4) and the work piece (1) up to making.Load onto thru-bolt (5), axle (4) has just connected together with work piece (1), loads onto set collar (2) from the other end of axle (4) then.The boss that set collar (2) is pushed away forward up to set collar (2) snaps in the groove of work piece (1), is pasting the chassis of set collar (2) and is loading onto compression spring (3).The original stretcher of bicycle is pulled down from former pedal shaft.Pasting the compression spring other end is contained on the axle (4).The elastic force of compression spring (3) makes the boss of set collar (2) and the groove chucking of work piece (1), and stretcher has just installed.If need to ride (9) when folding up, at first outwards pedal set collar (2) with pin.The boss of set collar (2) is withdrawed from from the groove of work piece (1), upwards skew of elastic force effect lower shaft (4) at U-shaped Leaf spring (6), be contained in the also upwards skew thereupon of set collar (2) on the axle (4), just make the boss of set collar (2) and the groove mutual dislocation of work piece (1), therefore the boss groove that just can not snap in work piece (1) has suffered, and upwards pedals foot-operated (9) whole stretcher with pin again and just makes progress rotation and be folded in the front of crank (11) along turning cylinder (5).When needing by bike, step on (9) with the downward presser feet of pin.Make axle (4) go to and be drilled with on the complete position contacting of following hole wall in hole (10), under the elastic force effect of compression spring (3), the boss of set collar (2) snaps in the interior and chucking of groove of work piece (1), and stretcher has just fixed.

Claims

1, a kind of with the original foot-operated Folding Bicycle stretcher of bicycle as foot-operated (9), it is characterized in that on the axle (4) of dress foot-operated (9), pasting foot-operated (9) compression spring (3) is being housed, the other end ground that the chassis of set collar (2) is being pasted compression spring (3) is contained in set collar (2) on the axle (4), the boss of set collar (2) is stuck in the groove of work piece (1), be stuck in the interior axle (4) of work piece (1) that is drilled with screw (7) on the corresponding hole wall of two-phase and has groove, on the appropriate location of its end, be drilled with through hole (8), the institute hole that drills through (8) coincides together on last open hole (7) of work piece (1) and the axle (4), in the hole that coincides, the thru-bolt (5) as turning cylinder is housed.

2, Folding Bicycle stretcher according to claim 1, it is characterized in that, one end car of work piece (1) has screw thread in order to link to each other with crank (11), the other end is drilled with and makes work piece (1) can be stuck in the hole of axle on (4), the last hole wall in its hole has removed a part, be drilled with hole (10) on the appropriate location of following hole wall, be drilled with screw (7) and have groove on the appropriate location of the corresponding hole wall of two-phase.

3, Folding Bicycle stretcher according to claim 1 and 2 is characterized in that, on the following hole wall of work piece (1) the U-shaped Leaf spring (6) that can change axle (4) position is housed in hole (10), fixing with screw (12).

4, Folding Bicycle stretcher according to claim 1 and 2 is characterized in that, the trough rim of institute's recessing can also have bayonet socket on the corresponding hole wall of the two-phase of work piece (1).

5, Folding Bicycle stretcher according to claim 1, it is characterized in that the chassis of set collar (2) is a disc, top is boss with bayonet, the height of boss and the degree of depth of groove are complementary, and the centre is drilled with and makes set collar (2) can be contained in the through hole of axle on (4).