CN1814499A - Rapid-folding crank for bicycle - Google Patents
Rapid-folding crank for bicycle Download PDFInfo
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- CN1814499A CN1814499A CNA2005100092466A CN200510009246A CN1814499A CN 1814499 A CN1814499 A CN 1814499A CN A2005100092466 A CNA2005100092466 A CN A2005100092466A CN 200510009246 A CN200510009246 A CN 200510009246A CN 1814499 A CN1814499 A CN 1814499A
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- movable arm
- permanent seat
- cam
- slide block
- lever
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K15/00—Collapsible or foldable cycles
- B62K2015/003—Collapsible or foldable cycles having a foldable crank or pedal
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Abstract
The invention relates to the fast replicated branch of the bike including one fixed seat(8)and one mobile arm(1)and the end of the mobile arm connects the fixed seat, characterized in that the mobile arm has (the sliding cover3, the sliding block28, the dial33 and thelevel36) which can be joined to the fixed seat and the spring acting on the equipment fastening(18), if we rotate and press the winding meeting axis of the mobile arm downwards, the equipment fastening buttoned the fixed seat automatically; when we push or pull the equipment fastening ,the equipment fastening detaches from the fixed seat, the mobile arm can be folded rapidly and the footplate is in the direction of inner totally. The collapsing and buttoning the mobile arm needs just one second, the handling of the miry footplate by hand is avoided. There are some other merits: the handy handle, sanitation, good frame, briefness, the thickness of the bike replicated reducing to about third, taking, keeping, transporting and using easy. The invention applies the replicated bike, other force aiding vehicle and the common bike.
Description
Technical field
The present invention relates to a kind of bicycle crank, particularly relate to the folding crank of folding bicycle.
Background technology
People just recognize that folding bicycle can be given individual and society brings many convenience and benefit for a long time, and design various folding bicycles.But because chain-driving and bevel gear transmission are the most practical bicycle type of drive, crank and pedal must be done the circumgyration campaign, must be multi-aspect stressed, so pedal or crank will be folded up, and accomplish rational in infrastructure, simple, easy and simple to handle, quick, health, relatively more difficult, be not well solved for a long time, after vehicle frame, handlebar and the saddle etc. of bicycle were partially folded, what be in the way most was exactly outwardly directed pedal.It makes the thickness behind the bicycle folding be difficult to further dwindle, and carrying, deposit and transporting all needs to take bigger space.Address this problem nature four kinds of modes are arranged: be one, that pedal is folding; Two, pedal is reversed; Three, crank is folding; Four, crank is reversed.Existing collapsible pedal on China's utility model patent ZL02261933 number " Collapsible bicycle pedal " and the market is exactly that pedal is folded.Its common feature is that the pedal axle is very short, but not collapsible, so pedal can not be folding fully, and structure is very unreasonable yet.Moreover, because pedal is very dirty, more should not use manual manipulation.China's utility model patent ZL91221228 number " a kind of pedal that can shift around crank " and ZL03241091 number " folding mini-motorcycle tread plate " then are that pedal is reversed.But the former is because crank lower end and pedal axle extend internally jointly, can produce vehicle frame and interfere, and hook the clothing skirt or the bottom of s trouser leg easily, after pedal reverses, may be horizontal, also can collide with other article, its structure is also very unreasonable, and reverses pedal with hand, and is unhygienic yet; And the latter also needs serviceable tool just pedal can be reversed and reset, and bothers time-consuming.China's utility model patent ZL96236855 number " folding crank of bicycle step ", Chinese invention patent application CN03109259 number and CN03148583 number " folding bicycle rotary crank ", all be that the crank separated into two parts is folded or reverses, but because all have a demolition and installation process, bother time-consuming, this is easy and simple to handle concerning requiring, the fast speed folding bicycle, not ideal enough.
Summary of the invention
What the purpose of this invention is to provide that a kind of folding bicycle uses can be inside fully with pedal, folding and launch fast, the collapsible crank of easy and simple to handle, health.
The present invention is achieved in that it comprises permanent seat (8), movable arm (1) and jointed shaft (7), one end of movable arm (1) is hinged itself and permanent seat (8) by jointed shaft (7), the hole that articulates with axis is on permanent seat (8), the hole that articulates with the pedal axle is on movable arm (1), buckling device that can be interlocked with permanent seat (8) and the spring (18) that acts on this buckling device are arranged on movable arm (1), movable arm (1) is rotated down and pushes it around jointed shaft (7), buckling device is promptly under the effect of spring (18), corresponding site automatic and permanent seat (8) is interlocked, movable arm (1) is locked on the permanent seat (8), finishes and launch and the locking process; When pushing away or spur buckling device, buckling device and permanent seat (8) are thrown off, movable arm (1) just can be around jointed shaft (7) retrograde rotation 180 degree, and fast folding gets up, and makes pedal inside fully.
The articulated form of permanent seat (8) and movable arm (1) is preferably such: permanent seat (8) has two sidewalls, forms " U " shape groove, and an end of movable arm (1) is hinged with two sidewalls of permanent seat (8) in this " U " shape groove.This is because the sidewall of " U " shape groove is shorter, and connects as one with bottom land, thus anti-twist intensity height, and adopt this version also can be with the contraction in length of axis.
Permanent seat (8) is that permanent seat (8) is the elbow formula that turns, and has two sidewalls and permanent seat (8) to be hinged on the movable arm (1) with the another kind of articulated form of movable arm (1).
Buckling device can be a sliding sleeve (3) of going up slip at movable arm (1), sliding sleeve (3) is staggered and fasten with the dorsal part of the extendible portion (11) of back wall or back wall and permanent seat (8) or its extendible portion (12), and perhaps sliding sleeve (3) is interlocked with the side hook (4) of its side hook (9) with permanent seat (8).
For the ease of operation, sliding sleeve can have anti-skidding ripple or reticulate pattern on (3).
Be preferably with the pushing hands or the handle (2) of being more convenient for operating on the sliding sleeve (3).
Laborsaving in order to operate sliding sleeve, be convenient to the long and slender person's use of student and finger, can also on sliding sleeve (3) or permanent seat (8), a cam (25) be set, cam (25) is hinged on sliding sleeve (3) or the permanent seat (8) by camshaft (24), cam handle (26) is arranged on the cam (25), pulling cam handle (26), rotating cam (25) is with ejection permanent seat (8) or sliding sleeve (3), sliding sleeve (3) is retreated, throw off with permanent seat (8).
At movable arm (1) when being open core type, buckling device also can be the slide block (28) in movable arm (1) chamber, the extendible portion (12) of the front end of slide block (28) and permanent seat (8) is staggered and fasten, perhaps slide block (28) front end has side hook (29) to stretch out respective openings on the movable arm (1) and the side hook (4) of permanent seat (8) is interlocked, have a handle (2) to stretch out respective openings on the movable arm (1) on the slide block (28) in addition, perhaps the extendible portion of slide block side hook (29) is as handle (2).
Laborsaving in order to operate slide block, also a cam (25) can be set on slide block (28), cam (25) is hinged on the slide block (28) by the respective openings on the movable arm (1) by camshaft (24), cam handle (26) is arranged on the cam (25), pulling cam handle (26), rotating cam (25) can make slide block (28) retreat with ejection permanent seat (8) or movable arm pushing (32), throws off with permanent seat (8); Perhaps have a pushing (30) to stretch out respective openings on the movable arm (1) on the slide block (28) in addition, cam (25) is hinged on movable arm (1) or the permanent seat (8) by camshaft (24), by cam (25) ejection slide block pushing (30), slide block (28) is retreated.
Be preferably with cam returning spring (31) on the cam (25), cam (25) can be automatically reset.
Buckling device can also be one has large-diameter portion to divide and path rotating disk (33) partly, rotating disk (33) is hinged on the back side of movable arm (1) by turntable shaft (35), the spring (18) that acts on rotating disk (33) is a torsion spring, the large-diameter portion of rotating disk (33) divides can be staggered and fasten with the extendible portion (12) of permanent seat (8), rotating disk handle (34) is arranged on the rotating disk (33), pulling rotating disk handle (34), rotating rotating disk (33) can make the large-diameter portion of rotating disk (33) divide and permanent seat (8) disengagement, unclamp rotating disk handle (34), rotating disk (33) promptly automatically and permanent seat (8) be interlocked.
Buckling device can also be the lever (36) that a front end has whippletree (38), the cross-sectional plane of lever (36) is " U " shape, fulcrum on two sidewall is respectively in the left and right sides of movable arm (1), and it is hinged on the movable arm (1) by lever fulcrum (37), connect a whippletree (38) between two front ends of lever (36), whippletree (38) can be interlocked with the extendible portion (12) of permanent seat (8), pull lever (36), whippletree (38) is promptly thrown off with permanent seat (8), as pushing movable arm (1) again, whippletree (38) extendible portion (12) promptly automatic and permanent seat (8) is interlocked.
Have under the situation of two sidewalls at permanent seat (8), buckling device can also be the fastening bolt (44) that slides in the cross-drilled hole on movable arm (1) and the lever (36) on the movable arm (1), the cross-sectional plane of lever (36) is " U " shape, fulcrum on two sidewall is respectively in the both sides, front and back of movable arm (1), and be hinged on the movable arm (1) by lever fulcrum (37), fasten on the bolt (44) one section path section (45) is arranged, there are left fastening hole (39) and right fastening hole (40) in the sidewall below of permanent seat (8), there is a bore also can pass through to fasten the opening of bolt path section (45) less than this bore dia on the left side fastening hole (39), fastening the left end of bolt (44) and the front end of lever (36) flexibly connects, when presses lever (36), pulling left fastens bolt (44), the right-hand member that fastens bolt (44) is return in the cross-drilled hole on the movable arm (1), fastening bolt path section (45) exposes from this hole, can put into the left fastening hole (39) of permanent seat (8), at this moment push movable arm (1), unclamp lever (36), spring (18) promotes to fasten bolt (44) by lever (36), make the large-diameter portion branch that fastens bolt (44) enter left fastening hole (39), right-hand member enters right fastening hole (40) simultaneously, and movable arm (1) is locked on the permanent seat (8).As presses lever (36) again, fastening bolt (44) can throw off with permanent seat (8).
Usually, folding bicycle need only be folding with the crank of a side, makes pedal inside.If vertically place, because of the both sides crank all stretches to same direction, thus can be simultaneously sagging, can be to inside and outside swing.If will carry or transport, in the available bandage binding or the bag of packing into.But no matter place or carry, preferably the folding back of crank does not just freely swing.The simplest way is the gap of adjusting between permanent seat (8) and movable arm (1) hinged, promptly allows this gap that small interference is arranged or the point of interference is arranged.By regulating the bolt type jointed shaft or knocking the sidewall of permanent seat (8) or the sidewall of movable arm (1) upper end just can be accomplished.In addition, an elastic clip or a hook can also be set at the corresponding site of vehicle frame, or a permanent magnet is set prevents that movable arm (1) from freely swinging.
If prevent that by crank structure itself movable arm (1) from freely swinging, and can take one of following three kinds of forms:
1, the corresponding site on permanent seat (8) top is provided with stop recess (10) or the protruding position of stop (5), when buckling device is sliding sleeve (3) or slide block (28) or rotating disk (33), the protruding position of the side hook (9) of sliding sleeve (3) or stop (5), slide block (28) front end or slide block side hook (29), the large-diameter portion branch of rotating disk (33), may be stuck on the stop recess (10) of permanent seat (8), or the inboard of rotating disk handle (34) is stuck on the protruding position of stop (5) of permanent seat (8).
2, when permanent seat (8) has two sidewalls, can a permanent magnet of insert (27) on the sidewall, to hold the movable arm (1) after folding.
3, at permanent seat (8) two sidewalls are arranged, when movable arm (1) is solid simultaneously, can have one on permanent seat (8) sidewall and bump pearl knock hole (42), be provided with one at the corresponding site of movable arm (1) and bump pearl (41), after movable arm (1) is folding, bumps pearl (41) and bumping upward location of pearl knock hole (42).
More than three kinds of forms can prevent that movable arm (1) from freely swinging after folding, and can pull down expansion at an easy rate.
As mentioned above, the present invention is because have buckling device easy and simple to handle, so do not need serviceable tool not need the folding dress just can make pedal inside fully the movable arm fast folding.Movable arm is folded or launches only to need one second time, and avoided removing to operate very dirty pedal with hand, easy and simple to handle, health, rational in infrastructure, simple, thoroughly solved the folding problem of bicycle pedal, it is about 1/3rd that thickness behind the bicycle folding is dwindled, and is more convenient for carrying, deposits, transports and uses.The present invention will become the important component part of folding bicycle, is applicable to folding bicycle, other boosted vehicle and ordinary bicycle.
Description of drawings
Fig. 1 and Fig. 2 are front elevation and the left views of one of embodiment.
Fig. 3 and Fig. 4 are two front elevation and the left views of embodiment.
Fig. 5 and Fig. 6 are three front elevation and the left views of embodiment.
Fig. 7 be embodiment three in the scheme drawing of movable arm when launching.
Fig. 8 is four scheme drawings of embodiment.
Fig. 9 and Figure 10 are five front elevation and the left views of embodiment.
Figure 11 be embodiment five in spring assembly technology scheme drawing.
Figure 12 and Figure 13 are six front elevation and the left views of embodiment.
Figure 14 is seven scheme drawings of embodiment.
Figure 15 is eight scheme drawings of embodiment.
Figure 16 and Figure 17 are nine front elevation and the left views of embodiment.
Figure 18 and Figure 19 are ten front elevation and the left views of embodiment.
Figure 20 and Figure 21 are 11 front elevation and the left views of embodiment.
Figure 22 and Figure 23 are 12 right elevation and the front elevations of embodiment.
Figure 24 and Figure 25 are 13 right elevation and the front elevations of embodiment.
Figure 26 and Figure 27 are 14 right elevation and the front elevations of embodiment.
Figure 28 and Figure 29 are 15 right elevation and the front elevations of embodiment.
Figure 30 and Figure 31 are 16 right elevation and the front elevations of embodiment.
Figure 32 and Figure 33 are 17 right elevation and the front elevations of embodiment.
Figure 34 and Figure 35 are 18 right elevation and the front elevations of embodiment.
Figure 36 and Figure 37 are 19 right elevation and the front elevations of embodiment.
Figure 38 and Figure 39 are 20 front elevation and the left views of embodiment.
Figure 40 and Figure 41 are 21 front elevation and the left views of embodiment.
Figure 42 be embodiment 21 in fastening bolt scheme drawing.
In each figure, 1～movable arm, 2～push away (drawing) hand, 3～sliding sleeve, 4～fixed seat side hook, the protruding position of 5～stop, 6～pin, 7～jointed shaft, 8～permanent seat, 9～sliding sleeve side hook, 10～stop recess, 11～sliding sleeve extendible portion, 12～permanent seat extendible portion, 13～auxiliary muscle, 14～slideway, 15～rivet, 16～binding bolt, 17～sliding damper, 18～spring, 19～fixed dam, 20～caging bolt, 21～jump ring, 22～spring set pin, the 23～movable arm spring of upspringing automatically, 24～camshaft, 25～cam, 26～cam handle, 27～permanent magnet, 28～slide block, 29～slide block side hook, the pushing of 30～slide block, 31～cam returning spring, the pushing of 32～movable arm, 33～rotating disk, 34～rotating disk handle, 35～turntable shaft, 36～lever, 37～lever fulcrum, 38～whippletree, 39～left fastening hole, 40～right fastening hole, 41～bump pearl, 42～the pearl knock hole bumped, 43～bump the pearl spring, 44～fastening bolt, 45～fastening bolt path section.
The specific embodiment
In Fig. 1 and Fig. 2, permanent seat 8 has two sidewalls, forms " U " shape groove, the hole that articulates with axis is arranged above, there is the hole that articulates with the pedal axle movable arm 1 lower end, and its upper end and is hinged by two sidewalls of jointed shaft 7 with itself and permanent seat 8 in " U " of permanent seat 8 shape groove.With the upper end of movable arm 1 relatively, the sidewall of permanent seat 8 is thinner, so jointed shaft 7 does not preferably change on permanent seat 8.Jointed shaft 7 among the figure is to be connected with screw thread with a sidewall of permanent seat 8 with the one end, preferably spring chair is arranged under its big end in case spline is moving.
Sliding sleeve 3 on the movable arm 1 is interlocked with fixed seat side hook 4 with its side hook 9 under the promotion of spring 18, between two side hooks that fasten, certain guide angle can be arranged mutually, therefore can fasten more and more tightlyer, makes movable arm 1 be close to the bottom land of permanent seat 8.The both sides of sliding sleeve 3 have anti-skidding ripple, are convenient to operation.
In use, movable arm 1 and pedal are being done the circumgyration campaign simultaneously, when movable arm 1 is horizontal (pedal before axis and after) repeatedly, can be subjected to the thrust of both direction repeatedly, and at this moment two of permanent seat 8 sidewalls play the qualification effect to movable arm 1; Below pedal was in axis, when perhaps bicycle was fallen down, movable arm 1 can be subjected to inside thrust, and at this moment the qualification effect is played at the end of permanent seat 8; When pedal above axis, movable arm 1 can be subjected to outside thrust, this thrust is a component when scrunching pedal, is not very big, at this moment then is that the sliding sleeve 3 that is interlocked with permanent seat 8 plays the qualification effect.Therefore, movable arm 1 is firm on permanent seat 8.
In Fig. 3 and Fig. 4, permanent seat 8 is square and exposes with the hole that axis articulates, is convenient to the assembling of bicycle like this.Permanent seat 8 back can riveting cogged sheet on the step as having step.This part can be an one with " U " shape groove, also can be by two parts weld together.Spring 18 is the dorsal parts that are built in movable arm 1, and sliding sleeve 3 is staggered and fasten with its back wall extendible portion 11 and the dorsal part of permanent seat 8.Also suitable guide angle can be arranged between its buckling surface.Annular handle 2 is arranged on sliding sleeve 3, more convenient operation like this, when spurring sliding sleeve 3, the pull-up movable arm 1 of can taking advantage of a situation.When movable arm 1 folded, sliding sleeve 3 can be pressed in the top of permanent seat 8 automatically under the effect of spring 18, and movable arm 1 just can not freely swing, and can pull down expansion at an easy rate again.
In Fig. 5 and Fig. 6, built-in spring 18 is continuously " Z " font flat springs, can dwindle the oad of sliding sleeve 3 like this.Wing formula pushing hands 2 is arranged on the sliding sleeve 3, have anti-skidding ripple in the wing formula pushing hands 2.After movable arm 1 folded as can be seen from Figure 7, pedal part was inside fully, and sliding sleeve 3 is stuck on the stop recess 10 of permanent seat 8 with its side hook 9, and movable arm 1 can freely not swung, and can pull down expansion at an easy rate.
In Fig. 8, sliding sleeve 3 is staggered and fasten with the extendible portion 12 of back wall and permanent seat 8, and permanent seat extendible portion 12 can dwindle the oad of sliding sleeve 3 relatively through brake formings.
By what this embodiment wanted special version be, an auxiliary muscle 13 can be set on the bottom land of permanent seat 8, the corresponding site on auxiliary muscle 13 and the movable arm 1 closely cooperates, and makes movable arm 1 more firm on permanent seat 8.Auxiliary muscle 9 can stamping-out, brake forming on the end of permanent seat 8, also can combine with permanent seat extendible portion 12, and corresponding site common and movable arm 1 closely cooperates.
In Fig. 9 and Figure 10, sliding sleeve 3 is to slide on the slideway 14 of movable arm 1 both sides, can further dwindle the oad of sliding sleeve 3 like this, and make the positive smooth of movable arm 1.When Figure 11 is illustrated in assembling " Z " shape spring 18, can be in advance three little rivets 15 be set at the position of the mounting spring 18 of movable arm 1, and below stamp out an overlap, to prevent the displacement of " Z " shape spring, sliding sleeve 3 is installed then, the caging bolt 20 of screwing on.
Because folding crank is mainly used in folding bicycle, and the weight of folding bicycle is all very light, and is less to the impulsive force of crank if fallen down, so crank can be more frivolous relatively.Figure 12 and Figure 13 etc. be movable arm 1 by the plate stamping moulding, the embodiment when making in conjunction with welding process.
In Figure 12 and Figure 13, the part that movable arm 1 lower end and pedal axle articulate can weld, and remainder then can punch forming.Fixed dam 19 can be welded on the movable arm 1.Have handle 2, top that the protruding position 5 of stop is arranged in sliding sleeve 3 sides, after movable arm 1 folded, the protruding position 5 of stop can be stuck on the stop recess 10 of permanent seat 8 tops automatically.
Figure 14 represents that spring 18 can be extension spring.Figure 15 represents that spring 18 can be a torsion spring.
In Figure 16 and Figure 17, permanent seat 8 is for turning the elbow formula, and movable arm 1 upper end has two sidewalls and permanent seat 8 to be hinged, and sliding sleeve 3 is staggered and fasten with back wall and permanent seat extendible portion 12.The protruding position 5 of stop is arranged at the antetheca top of sliding sleeve 3, and when movable arm 1 folded, the protruding position 5 of stop can be stuck on the stop recess 10 of permanent seat 8 tops automatically.
Figure 18 is different with last embodiment with Figure 19, and movable arm 1 is in conjunction with the welding process manufacturing by the plate stamping moulding.
In Figure 20 and Figure 21, the handle 2 on the sliding sleeve 3 is located at the front, so not only available manual manipulation, also available pin operation.Step on handle 2 when pin, when sliding sleeve 3 was thrown off with permanent seat 8, the movable arm spring 23 of upspringing automatically can be upspring movable arm 1, and then folding.
Figure 22 and Figure 23 represent, a cam 25 can be set on sliding sleeve 3, and cam 25 is hinged on the side of sliding sleeve 3 by camshaft 24, pulling cam handle 26, and rotating cam 25 can make sliding sleeve 3 retreat with ejection permanent seat 8, throws off with permanent seat 8, operates very laborsaving like this.As can be seen from the figure, cam handle 26 can freely swing, but can not surmount the front of movable arm 1.Between cam 25 and sliding sleeve 3 cushion can be arranged, cam handle just can not freely swing like this.It can also be seen that from figure cam 25 also can be arranged on the back side of sliding sleeve 3.
Figure 24 and Figure 25 represent that cam 25 is arranged on the side of permanent seat 8.Throw off when pulling cam handle 26 makes sliding sleeve 3 and permanent seat 8, when movable arm 1 was folded, movable arm 1 can drive cam handle 26 and reset, and at this moment the permanent magnet 27 of permanent seat 8 sidewalls top holds movable arm 1 and cam handle 26 simultaneously, all can not freely swing.All permanent seats have the embodiment of two sidewalls, can prevent that movable arm 1 or cam handle 26 from freely swinging with permanent magnet.
In Figure 26 and Figure 27, movable arm 1 is an open core type, and slide block 28 is arranged in its chamber, and spring 18 is the rectangular coil flat spring.Slide block 28 is interlocked with fixed seat side hook 4 with its side hook 29, and handle 2 is extendible portions of slide block side hook 29, and pulling handle 2 can make slide block 28 and permanent seat 8 throw off.After movable arm 1 folded, slide block side hook 29 can be stuck on the stop recess 10 of permanent seat 8 tops automatically.
This open core type movable arm 1, not only to articulate part be in the welding for hinge hole partial sum and pedal axle, and be just can finish integral solder after slide block 28 and spring 18 assemblings, the technology more complicated, but bring be crank low weight, approach and flat appearance.
In Figure 28 and 29, cam 25 and cam handle 26 can be riveted or weld together, also can be one, cam handle 26 can freely swing, but can not surmount the front of movable arm 1, pulling cam handle 26, with cam 25 ejection slide block pushings 30, slide block 28 can be thrown off with permanent seat 8.
In Figure 30 and Figure 31, permanent seat 8 is for turning the elbow formula, and movable arm 1 is an open core type, and slide block 28 is staggered and fasten with the extendible portion 12 of front end and permanent seat 8, be hinged on cam 25 on the movable arm 1 by camshaft 24, its built-in cam returning spring 31 can make it automatically reset.Equally, among the embodiment in front, all cams 25 can adopt this form to automatically reset.
In Figure 32 and Figure 33, cam 25 is hinged on the slide block 28 by camshaft 24, and pulling cam handle 26 can make slide block 28 retreat with ejection movable arm pushing 32, throws off with permanent seat 8.Adopt this version, spring 18 and slide block 28 can dismounting.If the slide block among fwd Figure 28 and Figure 29 28 increases thickness, also can be this version.
In Figure 34 and Figure 35, spring 18 is torsion springs, and under the effect of spring 18, the large-diameter portion of rotating disk 33 divides with the extendible portion 12 of permanent seat 8 staggered and fasten, and can not get loose.When pulling rotating disk handle 34, revolve around turntable shaft 35 and to turn 90 degrees, the large-diameter portion of rotating disk 33 divides promptly and throws off with permanent seat 8.When movable arm 1 folded, the inboard of rotating disk handle 34 may be stuck on the protruding position 5 of stop of permanent seat 8 tops, prevents that movable arm 1 from freely swinging.
In Figure 36 and Figure 37, permanent seat 8 is the elbow formula that turns, and after movable arm 1 folded, the large-diameter portion branch of rotating disk 33 may be stuck on the stop recess 10 of permanent seat 8 tops.If movable arm 1 is solid, spring 18 can be the disc type torsion spring.
In Figure 38 and Figure 39, pull lever 36, whippletree 38 is promptly thrown off with the extendible portion 12 of permanent seat 8.When movable arm 1 folded, the permanent magnet 27 of the seat 8 sidewalls top that just is fixed held, and can not freely swing.
In Figure 40 Figure 41 and Figure 42, fasten on the bolt 44 path section 45 is arranged, when presses lever 36, pulling left fastens bolt 44, the right-hand member that fastens bolt 44 is return in the cross-drilled hole on the movable arm 1, and the path section 45 that fastens bolt simultaneously arrives left fastening hole 39, movable arm 1 pull-up can be come retrograde rotation 180 degree to fold up, at this moment the bump pearl of pearl 41 above permanent seat 8 sidewalls that bump on the movable arm 1 decided location on the hole 42, and movable arm 1 can freely not swung.When movable arm 1 is launched, same presses lever 36, allow the path section 45 that fastens bolt 44 enter in the left fastening hole 39 of permanent seat 8, unclamp lever 36 simultaneously, at this moment spring 18 promotes to fasten bolt 44 by lever 36, the large-diameter portion branch that fastens bolt 44 left ends enters in the left fastening hole 39, and right-hand member enters in the right fastening hole 40 simultaneously, and movable arm 1 just is locked on the permanent seat 8.
From then on embodiment as can be seen, as long as permanent seat 8 has two sidewalls, movable arm 1 be solid simultaneously, can freely swing with the movable arm 1 that bumps after pearl 41 prevents to fold.
The embodiment of the various ways that more than provides, the part of having nothing in common with each other can be accepted or rejected and reconfigure, and again in conjunction with Forging Technology, Sheet Metal Forming Technology, welding process and mechanical processing technique, carries out optimal design more specifically.
Claims (10)
1, a kind of rapid-folding crank for bicycle, comprise permanent seat (8), movable arm (1) and jointed shaft (7), one end of movable arm (1) is hinged itself and permanent seat (8) by jointed shaft (7), the hole that articulates with axis is on permanent seat (8), the hole that articulates with the pedal axle is on movable arm (1), it is characterized in that: buckling device that can be interlocked with permanent seat (8) and the spring (18) that acts on this buckling device are arranged on the movable arm (1), movable arm (1) is rotated down and pushes it around jointed shaft (7), buckling device is promptly under the effect of spring (18), corresponding site automatic and permanent seat (8) is interlocked, movable arm (1) is locked on the permanent seat (8), when pushing away or draw buckling device, buckling device and permanent seat (8) are thrown off, and movable arm (1) just can be around jointed shaft (7) retrograde rotation 180 degree, and fast folding gets up.
2, rapid-folding crank according to claim 1 is characterized in that: described permanent seat (8) has two sidewalls, forms " U " shape groove, and an end of movable arm (1) is hinged with two sidewalls of permanent seat (8) in this " U " shape groove.
3, rapid-folding crank according to claim 1, it is characterized in that: described buckling device is a sliding sleeve (3) of going up slip at movable arm (1), sliding sleeve (3) is staggered and fasten with the dorsal part of the extendible portion (11) of back wall or back wall and permanent seat (8) or its extendible portion (12), and perhaps sliding sleeve (3) is interlocked with the side hook (4) of its side hook (9) with permanent seat (8).
4, rapid-folding crank according to claim 3 is characterized in that: have pushing hands or handle (2) on the described sliding sleeve (3).
5, rapid-folding crank according to claim 3, it is characterized in that: on described sliding sleeve (3) or the permanent seat (8) cam (25) is arranged, cam (25) is hinged on sliding sleeve (3) or the permanent seat (8) by camshaft (24), cam handle (26) is arranged on the cam (25), pulling cam handle (26), rotating cam (25) can make sliding sleeve (3) retreat with ejection sliding sleeve (3), throws off with permanent seat (8).
6, rapid-folding crank according to claim 1, it is characterized in that: described movable arm (1) is an open core type, buckling device is the slide block (28) in movable arm (1) chamber, the extendible portion (12) of the front end of slide block (28) and permanent seat (8) is staggered and fasten, perhaps slide block (28) front end has side hook (29) to stretch out respective openings on the movable arm (1) and the side hook (4) of permanent seat (8) is interlocked, have a handle to stretch out respective openings on the movable arm (1) on the slide block (28) in addition, perhaps the extendible portion of slide block side hook (29) is as handle (2).
7, rapid-folding crank according to claim 1, it is characterized in that: described movable arm (1) is an open core type, buckling device is the slide block (28) in movable arm (1) chamber, the extendible portion (12) of the front end of slide block (28) and permanent seat (8) is staggered and fasten, perhaps slide block (28) front end has side hook (29) to stretch out respective openings on the movable arm (1) and the side hook (4) of permanent seat (8) is interlocked, a cam (25) is arranged on the slide block (28), cam (25) is hinged on the slide block (28) by the respective openings on the movable arm (1) by camshaft (24), cam handle (26) is arranged on the cam (25), pulling cam handle (26), rotating cam (25) is with ejection permanent seat (8) or movable arm pushing (32), slide block (28) is retreated, throw off with permanent seat (8), perhaps there is a pushing (30) to stretch out respective openings on the movable arm (1) on the slide block (28) in addition, cam (25) is hinged on movable arm (1) or the permanent seat (8) by camshaft (24), by cam (25) ejection slide block pushing (30), slide block (28) is retreated.
8, rapid-folding crank according to claim 1, it is characterized in that: described buckling device is one has large-diameter portion to divide and path rotating disk (33) partly, rotating disk (33) is hinged on the back side of movable arm (1) by turntable shaft (35), the spring (18) that acts on rotating disk (33) is a torsion spring, the large-diameter portion of rotating disk (33) divides can be staggered and fasten with the extendible portion (12) of permanent seat (8), rotating disk handle (34) is arranged on the rotating disk (33), pulling rotating disk handle (34), rotating rotating disk (33) can make the large-diameter portion of rotating disk (33) divide and permanent seat (8) disengagement, unclamp rotating disk handle (34), rotating disk (33) promptly automatically and permanent seat (8) be interlocked.
9, rapid-folding crank according to claim 1, it is characterized in that: described buckling device is the lever (36) that front end has whippletree (38), the cross-sectional plane of lever (36) is " U " shape, fulcrum on two sidewall is respectively in the left and right sides of movable arm (1), and be hinged on the movable arm (1) by lever fulcrum (37), connect a whippletree (38) between two front ends of lever (36), whippletree (38) can be interlocked with the extendible portion (12) of permanent seat (8), pull lever (36), whippletree (38) are promptly thrown off with permanent seat (8).
10, rapid-folding crank according to claim 2, it is characterized in that: described buckling device is the fastening bolt (44) that slides in the cross-drilled hole on movable arm (1) and the lever (36) on the movable arm (1), the cross-sectional plane of lever (36) is " U " shape, fulcrum on two sidewall is respectively in the both sides, front and back of movable arm (1), and be hinged on the movable arm (1) by lever fulcrum (37), fasten on the bolt (44) one section path section (45) is arranged, there are left fastening hole (39) and right fastening hole (40) in the sidewall below of permanent seat (8), there is a bore also can pass through to fasten the opening of bolt path section (45) less than this bore dia on the left side fastening hole (39), fastening the left end of bolt (44) and the front end of lever (36) flexibly connects, when presses lever (36), pulling left fastens bolt (44), the right-hand member that fastens bolt (44) is return in the cross-drilled hole of movable arm (1), fastening bolt path section (45) exposes from this hole, can put into the left fastening hole (39) of permanent seat (8), at this moment push movable arm (1), unclamp lever (36), spring (18) promotes to fasten bolt (44) by lever (36), make the large-diameter portion branch that fastens bolt (44) enter left fastening hole (39), right-hand member enters right fastening hole (40) simultaneously, movable arm (1) is locked on the permanent seat (8), as presses lever (36) again, fastening bolt (36) can throw off with permanent seat (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100092466A CN1814499A (en) | 2005-01-31 | 2005-01-31 | Rapid-folding crank for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100092466A CN1814499A (en) | 2005-01-31 | 2005-01-31 | Rapid-folding crank for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1814499A true CN1814499A (en) | 2006-08-09 |
Family
ID=36906891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100092466A Pending CN1814499A (en) | 2005-01-31 | 2005-01-31 | Rapid-folding crank for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1814499A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092268A1 (en) * | 2007-12-29 | 2009-07-30 | Dongjun Wang | Device for dismounting and mounting bicycle footplates and assembly for one step controlling dismounting and mounting |
| CN102145728A (en) * | 2010-02-04 | 2011-08-10 | 廉东换 | Position control device for bicycle crank arm |
| CN101758897B (en) * | 2008-11-03 | 2011-09-07 | 詹富生 | Folding crankshaft |
| CN102233927A (en) * | 2010-04-27 | 2011-11-09 | 戚善鸣 | Folded pedal for folded bicycle |
| CN102303681A (en) * | 2011-05-16 | 2012-01-04 | 无锡尚格工业设计有限公司 | Structure of folding pedal connecting rod |
| CN103332259A (en) * | 2013-06-09 | 2013-10-02 | 无锡尚格工业设计有限公司 | Crank of folding vehicle |
| CN104773252A (en) * | 2015-04-03 | 2015-07-15 | 费林宝 | Bicycle driving mechanism changed according to set rules |
| CN108045492A (en) * | 2017-12-22 | 2018-05-18 | 史非 | A kind of fast disassembly type bicycle middle shaft component and its quick-disassembling method |
| CN111111088A (en) * | 2018-11-01 | 2020-05-08 | 龙泰（江西）运动科技有限公司 | Trampoline support frame with bendable supporting legs |
| WO2020128185A1 (en) * | 2018-12-21 | 2020-06-25 | Decathlon | Foldable crank arm |
| US11242113B2 (en) * | 2018-11-08 | 2022-02-08 | Mga Entertainment, Inc. | Child's riding bike that converts between a balance bike and a pedal-powered bicycle |
-
2005
- 2005-01-31 CN CNA2005100092466A patent/CN1814499A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092268A1 (en) * | 2007-12-29 | 2009-07-30 | Dongjun Wang | Device for dismounting and mounting bicycle footplates and assembly for one step controlling dismounting and mounting |
| US8485063B2 (en) | 2007-12-29 | 2013-07-16 | Dongjun Wang | Device for assembling/disassembling bicycle pedals and assembly for controlling assembling/disassembling by one step |
| CN101758897B (en) * | 2008-11-03 | 2011-09-07 | 詹富生 | Folding crankshaft |
| CN102145728A (en) * | 2010-02-04 | 2011-08-10 | 廉东换 | Position control device for bicycle crank arm |
| CN102233927A (en) * | 2010-04-27 | 2011-11-09 | 戚善鸣 | Folded pedal for folded bicycle |
| CN102303681A (en) * | 2011-05-16 | 2012-01-04 | 无锡尚格工业设计有限公司 | Structure of folding pedal connecting rod |
| CN103332259A (en) * | 2013-06-09 | 2013-10-02 | 无锡尚格工业设计有限公司 | Crank of folding vehicle |
| CN104773252A (en) * | 2015-04-03 | 2015-07-15 | 费林宝 | Bicycle driving mechanism changed according to set rules |
| CN108045492A (en) * | 2017-12-22 | 2018-05-18 | 史非 | A kind of fast disassembly type bicycle middle shaft component and its quick-disassembling method |
| CN108045492B (en) * | 2017-12-22 | 2023-06-30 | 史非 | Quick-dismantling type bicycle middle shaft assembly and quick-dismantling method thereof |
| CN111111088A (en) * | 2018-11-01 | 2020-05-08 | 龙泰（江西）运动科技有限公司 | Trampoline support frame with bendable supporting legs |
| US11242113B2 (en) * | 2018-11-08 | 2022-02-08 | Mga Entertainment, Inc. | Child's riding bike that converts between a balance bike and a pedal-powered bicycle |
| WO2020128185A1 (en) * | 2018-12-21 | 2020-06-25 | Decathlon | Foldable crank arm |
| FR3090563A1 (en) * | 2018-12-21 | 2020-06-26 | Decathlon | Foldable crank |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |