CN101130378B - Mini foldable bicycle - Google Patents

Mini foldable bicycle Download PDF

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Publication number
CN101130378B
CN101130378B CN200610112490XA CN200610112490A CN101130378B CN 101130378 B CN101130378 B CN 101130378B CN 200610112490X A CN200610112490X A CN 200610112490XA CN 200610112490 A CN200610112490 A CN 200610112490A CN 101130378 B CN101130378 B CN 101130378B
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China
Prior art keywords
vehicle body
saddle
rear portion
bicycle
steering head
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Expired - Fee Related
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CN200610112490XA
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Chinese (zh)
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CN101130378A (en
Inventor
周远大
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Individual
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Individual
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Priority to CN200610112490XA priority Critical patent/CN101130378B/en
Publication of CN101130378A publication Critical patent/CN101130378A/en
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Publication of CN101130378B publication Critical patent/CN101130378B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention relates to a folding mini-bicycle, comprising vehicle (110) with front part (111) and back part (112), turning sleeve (121) fixed with the front part (111) of vehicle module (110), turning head (122) fixed with front fork (131), back wheel (140) fixed with the back part (112) of vehicle by support module (141), bicycle saddle (150) fixed at the back part (112), fixed support (114) set at the tail end of back part (112) of vehicle, active support (116) set at the back part (112) and with presetting journey, and spring group (153) for support the support (151) of bicycle saddle.

Description

Mini foldable bicycle
Technical field
The present invention relates to a kind of portable bicycle, particularly a kind of Foldable bicycle.
Background technology
Existing Foldable bicycle; Mostly be that the support that vehicle body could fold or support front and rear wheel can fold; Design-calculated folding bicycle like this; Though folding very little, also influenced load-carrying capacity, and the also relatively more tired lock of the operation from the folded state to the open mode and from the open mode to the folded state.Figure 1A has shown the bicycle 10 that the Chinese patent of application number CN00816084.8 disclosed " universal folding bicycle " is a kind of Ms.Figure 1B shows the folded state scheme drawing of the bicycle of this prior art, for the size after making this car folding is littler, needs will support simultaneously the support 4 and 5 of front and rear wheel, the support 7 that supports steering head and the support 3 of supporting seat; Fold, also need the crank 2 that stretcher links to each other be dismantled, therefore; Its structure is a more complicated; Even need operating personal to possess certain operating skill, the more important thing is that complicated like this structure also can influence the bearing capacity of bicycle.
The disclosed bicycle 20 of the Chinese patent of application number CN02147412.5 " bicycle use quick folding device ", as shown in Figure 2.The folding of its car body only is two section 21 and 22 that removably connects through girder is divided into, and realizes, like connection structure 23.Because bicycle body portion in use is stressed bigger, cause the bicycle of this prior art not attractive in appearance.It is considerably painstaking when people drive, also can to feel, also can influence the speed that drives.
Summary of the invention
The technical matters that solves of the present invention is to provide a kind of folding mini bicycle, although its volume is little, has enough bearing capacities and drives with the people who makes things convenient for various statures, and a kind of conveniently method for folding.
A kind of mini bicycle of this aspect comprises: vehicle body has front and rear; Turning sleeve is captiveed joint with the anterior of vehicle body; Front-wheel is fixed with front fork, and this front fork passes from the lower end of turning sleeve; Fixing handled steering head is fixed with the front fork that passes from turning sleeve; And trailing wheel, captive joint with the rear portion of vehicle body through bracket component; Saddle, to the rear portion of vehicle body, this bicycle also comprises through the saddle support fixation: a fixed bearing is arranged on the tail end of this body tail, through bearing pin and this saddle support and connection; One has the expansion bearing of predetermined stroke, is arranged on the rear portion of this vehicle body, and can move along the rear portion of this vehicle body; And one be used to support the spring assembly that this saddle supports, and is connected with this expansion bearing.
Also be provided with the tread plate that the stroke with this expansion bearing adapts on this bicycle, it is provided with tooth.
The lower end of this spring assembly is connected with described expansion bearing through a Fast detachable unit, and the Connection Block that upper end and is arranged on said saddle support middle part is connected.。
Be respectively arranged with Fast detachable unit on this steering head lower end and the handle.
The rear portion of this bicycle forms arch.
Described saddle supports and forms arch.
The cross section that this saddle supports is a unequal section, from top to bottom increases gradually.
The cross section that this saddle supports is a unequal section, is reduced gradually to two by the centre.
The cross section that this saddle supports is ellipse or rectangle.
A kind of mini bicycle of the present invention comprises: vehicle body has front and rear; Turning sleeve, set inside have a steering head, captive joint with the anterior of vehicle body; Front-wheel is fixed with front fork, and this front fork passes from the lower end of turning sleeve; Fixing handled steering head is fixed with the front fork that passes from turning sleeve; And trailing wheel, captive joint with the rear portion of vehicle frame through bracket component; And saddle, to the rear portion of vehicle body, this bicycle also comprises through the saddle support fixation: a fixed bearing is arranged on the tail end of this body tail, through bearing pin and this saddle support and connection; One bearing is arranged on the rear portion of this vehicle body, and can moves along the rear portion of this vehicle body; And one be used to support the spring assembly that this saddle supports, and is connected with this expansion bearing through a Fast detachable unit.
Be respectively arranged with Fast detachable unit on the steering head lower end of this mini bicycle and the handle.The method for folding that is used for mini bicycle of the present invention, this bicycle comprises: a vehicle body is provided, has front and rear; One turning sleeve is provided, and set inside has a steering head, captives joint with the anterior of vehicle body; One front-wheel is provided, fixes with front fork, this front fork passes from the lower end of turning sleeve; Fixing handled steering head is fixed with the front fork that passes from turning sleeve; And a trailing wheel is provided, captive joint with the rear portion of vehicle frame through bracket component; And a saddle is provided, and supporting the rear portion that is installed in vehicle body through saddle, this method for folding comprises: provide to be provided with one and to support the fixed bearing that is rotatably connected with this saddle, be arranged on the tail end of this body tail; Provide be provided with one have a reservation shape expansion bearing, can move along the rear portion of this vehicle frame; And provide the spring assembly that flexibly connects with this expansion bearing is set, be used to support this saddle and support.
This method also comprises a Fast detachable unit is set on steering head lower end and handle respectively.
This method also comprises rotates front-wheel and about 180 degree of steering head backward.
This method also comprises the Fast detachable unit that unclamps on this handle, to fold this handle towards steering head.
This method also comprises the Fast detachable unit that unclamps the steering head lower end, to fold steering head towards body forward structure.
This method also is included on this expansion bearing and is fixed to body tail through a Fast detachable unit, with easily
Adjust this expansion bearing in the fastening position of body tail.
This method comprises that also this expansion bearing is connected to the lower end of spring assembly through a Fast detachable unit, so that when unclamping Fast detachable unit, can shift out spring easily.
In the method, the front and rear of said vehicle body is set,, is used to hold this steering head and saddle and saddle support etc. after folding to form a depression with predetermined angle.
According to an aspect of the present invention, the present invention is simple in structure, and the complete required parts of car are considerably less.Simultaneously, when need install or fold, operation very simply need be by extra instrument yet.Especially front fork of the present invention can be dexterously Rotate 180 ° backward, further reduced the volume of accumulating.
According to a further aspect in the invention, owing to need not folding stand, therefore vehicle frame of the present invention is the one design-calculated; Do not have the connection of parts, in addition, need not folding front and rear wheel yet; Only be that the car seat has only a removable pine of movable part and fastening, therefore with front-wheel Rotate 180 °; The present invention sees from integral structure, is very crash-resistant, and load-carrying capacity is very strong.
According to another aspect of the invention, because attaching parts of the present invention is few, therefore mini bicycle of the present invention is not fragile.
Description of drawings
Through description, will make that technique scheme of the present invention and other advantage are obvious below in conjunction with accompanying drawing to preferred embodiment of the present invention.
Figure 1A-1B is respectively a kind of scheme drawing under open mode and folded state of prior art;
Fig. 2 is the scheme drawing of the bicycle of another prior art;
Fig. 3 is the scheme drawing of a preferred embodiment of mini bicycle of the present invention, shows to be used to support the spring assembly that saddle supports and to utilize an expansion bearing to be fixed to vehicle body;
Fig. 4 A is that the saddle of mini bicycle shown in Figure 3 supports to the folding scheme drawing of vehicle body, and the fixed position that has shown expansion bearing is movably;
Fig. 4 B is along the cutaway view of A-A line among Fig. 3;
Fig. 5 A-5C has shown mini bicycle folding process scheme drawing shown in Figure 3;
Fig. 6 A is the scheme drawing of another preferred embodiment of mini bicycle of the present invention, has shown that spring assembly has Fast detachable unit;
Fig. 6 B is along the cutaway view of B-B line among Fig. 6 A;
Fig. 6 C is that saddle supports the scheme drawing after being folded, and wherein spring assembly is removed.
The specific embodiment
Fig. 3 illustrates first preferred embodiment of mini bicycle 100 of the present invention.Identical with the bicycle of prior art is that it comprises: vehicle body 110 has a front portion 111 and a rear portion 112; A turning sleeve 121 of captiveing joint with the front portion 111 of vehicle body 110; One front-wheel 130, fixing with front fork 131, this front fork 131 passes from the lower end of turning sleeve 121; One steering head 122, fixing with the front fork that passes from turning sleeve 131; Trailing wheel 140 is captiveed joint with the rear portion 112 of vehicle body through bracket component 141; With saddle 150, be fixed to the rear portion 112 of vehicle body through saddle support 151.In addition, vehicle body 110 also is fixed with device with pedal 113, is in transmission connection through chain 114 and trailing wheel 140; And, also be fixed with leader 124 on this steering head 122.
Specifically, the present invention is provided with a fixed bearing 114 further at the rear portion 112 of this vehicle body, is arranged on the tail end of this body tail 112, is used for fixing this saddle and supports 151.Be provided with bearing pin 115 simultaneously on this fixed bearing 114, making saddle support 151 can rotate around this bearing pin 115.
More particularly, the present invention also is fastened with an expansion bearing 116 at the rear portion 112 of this vehicle body, can on this rear portion 112, move in the preset range.Spring assembly 153 of the present invention can be installed in this expansion bearing 116, and is supporting this saddle through Connection Block 152 and supporting 151.Like this, along with expansion bearing 116 of the present invention 112 moves down along the rear portion, saddle of the present invention supports 151 to begin to rotate around the bearing pin 115 of fixed bearing 114, up to folding with this rear portion 112, shown in Fig. 4 A.
Fig. 4 B at length shows the structure of expansion bearing 116.Expansion bearing 116 has the collar 116a that is used for fastening body tail 112, and a tread plate 118 is limited at and is used to prevent that collar 116a from skidding between rear portion 112 and the collar 116a.Simultaneously, be provided with a pair of bearing 116b on the collar 116a, thus, the lower end of spring assembly 153 can utilize a bearing pin 116c to be fixed to bearing 116b.For conveniently unclamping the expansion bearing 116 that is fastened to rear portion 112, it can be moved easily, and as required can be on its stroke arbitrary position fastening, the present invention is provided with a Fast detachable unit 119 on expansion bearing 116.When rotating Fast detachable unit 119, collar 116a tightens up gradually, and snaps on the tread plate 118, makes spring assembly 153 fixing with body tail 112.
Thus, expansion bearing 116 of the present invention not only can be used for folding bicycle 100, also is used in particular for regulating as required the height of saddle 150, drives for the people of different statures, has improved the comformability of bicycle 100 of the present invention greatly.Certainly, tread plate 118 need adapt with the stroke of expansion bearing 116.
Vehicle body 110 of the present invention can utilize a single-piece pipe fitting and with certain curvature front portion 111 and rear portion 112 is set; For example; With predetermined angle the front and rear of said vehicle body is set, to form a depression 120, therefore; Bicycle of the present invention has favorable rigidity, and has improved bearing capacity effectively.Its cross section can be circle, ellipse, rectangle, triangle or polygon.
Simultaneously, have better streamline for making mini bicycle 100 of the present invention, arch is arranged at rear portion 112, to adapt to the profile of trailing wheel 140.Saddle supports and also is arranged to arch, to hold spring assembly 153 spaces.The cross section that saddle supports is in particular ellipse or rectangle, can also be unequal section, and its cross section from top to bottom is (as shown in Figure 3) form that increases gradually, also can be the form that is reduced gradually to two by the centre.
Fig. 5 A-5C has shown the folding process of bicycle 100 of the present invention.
Consult Fig. 5 A, on the handle 124 of steering head 122 and the lower end 123 Fast detachable unit 125 (Fast detachable unit that does not show handle) is installed all.Therefore, when unclamping the Fast detachable unit of handle, handle 124 can rely on steering head 122 and be folded.
Show that like Fig. 5 B at first, steering head 122 and front-wheel 130 can rotate about 180 degree backward under the cooperation of the steering head of turning sleeve 121.Secondly, unclamp the Fast detachable unit 125 of steering head lower end 132 again, can make steering head 122 folding towards the front portion 111 of vehicle body.
Show like Fig. 5 C, unclamp the Fast detachable unit on the expansion bearing 116 again, make expansion bearing 116 112 move down, so that saddle supports is 151 folding to rear portion 112 along the rear portion.
The depression 120 that vehicle body of the present invention had just can be held this steering head 122 and saddle 150 and saddle support 151 etc. after folding dexterously, and therefore, mini bicycle 100 of the present invention can fold compactly.It is also understood that the Fast detachable unit order of operation on each parts of mini bicycle of the present invention is in no particular order.For example, at first Foldable saddle supports, and then the rotation front-wheel, and folding at last steering head can be realized the object of the invention equally.
In real world applications, should be taken into account also that in case mini bicycle 100 of the present invention is driven by specific people they might only think folding bicycle rather than move expansion bearing 116 frequently.Based on such consideration, shown in Fig. 6 A, the present invention can also be provided with a Fast detachable unit 160 on spring assembly 153.Consult Fig. 6 B, at first, expansion bearing 116 has the collar 116a that is used for fastening body tail 112, and a tread plate 118 is limited at and is used to prevent that collar 116a from skidding between rear portion 112 and the collar 116a.Simultaneously, be provided with a pair of bearing 116b on the collar 116a.Thus, the bearing pin 162 of Fast detachable unit 160 passes bearing 116b and is connected with the lower end of spring assembly 153.Like this, when rotating Fast detachable unit 160, collar 116a tightens up gradually, and snaps on the tread plate 118, equally can be so that spring assembly 153 is fixing with body tail 112; When unclamping Fast detachable unit 160, spring assembly 153 can break away from bearing 116b, makes do not moving under the situation of expansion bearing 116, and it is folding to realize that saddle supports towards body tail.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Being familiar with those of ordinary skill in the art ought can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims (19)

1. mini foldable bicycle, it comprises:
Vehicle body has front and rear;
Turning sleeve is captiveed joint with the anterior of said vehicle body;
Front-wheel is fixed with front fork, and this front fork passes from the lower end of turning sleeve;
Fixing handled steering head is fixed with the front fork that passes from turning sleeve; And
Trailing wheel is captiveed joint with the rear portion of vehicle body through bracket component;
Saddle through the rear portion of saddle support fixation to said vehicle body, is characterized in that this bicycle also comprises
One fixed bearing is arranged on the tail end at the rear portion of this vehicle body, through bearing pin and this saddle support and connection;
One has the expansion bearing of predetermined stroke, is arranged on the rear portion of this vehicle body, and can move along the rear portion of this vehicle body; And
One is used to support the spring assembly that this saddle supports, and is connected with this expansion bearing.
2. bicycle according to claim 1 is characterized in that, also is provided with the tread plate that the stroke with this expansion bearing adapts on this bicycle, and it is provided with tooth.
3. bicycle according to claim 2 is characterized in that, the lower end of this spring assembly is connected with described expansion bearing through a Fast detachable unit, and the Connection Block that upper end and is arranged on said saddle support middle part is connected.
4. bicycle according to claim 3 is characterized in that, on said steering head lower end and handle, is respectively arranged with Fast detachable unit.
5. bicycle according to claim 1 is characterized in that, this rear portion forms arch.
6. bicycle according to claim 1 is characterized in that, described saddle supports and forms arch.
7. bicycle according to claim 6 is characterized in that, the cross section that this saddle supports is a unequal section, from top to bottom increases gradually.
8. bicycle according to claim 6 is characterized in that, the cross section that this saddle supports is a unequal section, is reduced gradually to two by the centre.
9. bicycle according to claim 6 is characterized in that, the cross section that this saddle supports is ellipse or rectangle.
10. mini foldable bicycle, it comprises:
Vehicle body has front and rear;
Turning sleeve, set inside have a steering head, captive joint with the anterior of vehicle body;
Front-wheel is fixed with front fork, and this front fork passes from the lower end of turning sleeve;
Fixing handled said steering head is fixed with the front fork that passes from turning sleeve; And
Trailing wheel is captiveed joint with the rear portion of vehicle frame through bracket component; And
Saddle through the rear portion of saddle support fixation to vehicle body, is characterized in that this bicycle also comprises
One fixed bearing is arranged on the tail end of this body tail, through bearing pin and this saddle support and connection;
One has the expansion bearing of predetermined stroke, is arranged on the rear portion of this vehicle body, and can move along the rear portion of this vehicle body;
And
One is used to support the spring assembly that this saddle supports, and the expansion bearing that is arranged on the rear portion of this vehicle body through a Fast detachable unit and this is connected.
11. bicycle according to claim 10 is characterized in that, on said steering head lower end and handle, is respectively arranged with Fast detachable unit.
12. a method for folding that is used for mini bicycle, this bicycle comprises
One vehicle body is provided, has front and rear;
One turning sleeve is provided, and set inside has a steering head, captives joint with the anterior of vehicle body;
One front-wheel is provided, fixes with front fork, this front fork passes from the lower end of turning sleeve;
One fixing handled said steering head is provided, fixes with the front fork that passes from turning sleeve; And
One trailing wheel is provided, captives joint with the rear portion of vehicle frame through bracket component; And
One saddle is provided, supports the rear portion be installed in vehicle body, the method is characterized in that: provide to be provided with one and to support the fixed bearing that is rotatably connected, be arranged on the tail end at the rear portion of this vehicle body with this saddle through saddle;
Provide one have predetermined stroke expansion bearing, be arranged on the rear portion of this vehicle body, and can move along the rear portion of this vehicle body;
And
Provide the spring assembly that flexibly connects with this expansion bearing is set, be used to support this saddle and support.
13. method according to claim 12 is characterized in that, also comprises a Fast detachable unit is set on said steering head lower end and handle respectively.
14. method according to claim 13 is characterized in that, also comprises rotating front-wheel and about 180 degree of steering head backward.
15. method according to claim 14 is characterized in that, unclamps the Fast detachable unit on this handle, to fold this handle towards said steering head.
16. method according to claim 14 is characterized in that, also comprises the Fast detachable unit that unclamps said steering head lower end, to fold steering head towards body forward structure.
17. method according to claim 12 is characterized in that, also is included on this expansion bearing and is fixed to body tail through a Fast detachable unit, to adjust this expansion bearing easily in the fastening position of body tail.
18. method according to claim 12 is characterized in that, comprises that also this expansion bearing is connected to the lower end of spring assembly through a Fast detachable unit, so that when unclamping Fast detachable unit, can shift out spring easily.
19. method according to claim 12 is characterized in that,
With predetermined angle the front and rear of said vehicle body is set,, is used to hold said steering head and saddle and saddle support after folding to form a depression.
CN200610112490XA 2006-08-21 2006-08-21 Mini foldable bicycle Expired - Fee Related CN101130378B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200610112490XA CN101130378B (en) 2006-08-21 2006-08-21 Mini foldable bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200610112490XA CN101130378B (en) 2006-08-21 2006-08-21 Mini foldable bicycle

Publications (2)

Publication Number Publication Date
CN101130378A CN101130378A (en) 2008-02-27
CN101130378B true CN101130378B (en) 2012-02-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200610112490XA Expired - Fee Related CN101130378B (en) 2006-08-21 2006-08-21 Mini foldable bicycle

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RO102286B1 (en) * 1988-10-24 1993-03-01 Tricycle
CN2161547Y (en) * 1993-04-09 1994-04-13 张达汇 Portable folding bicycle
CN2271486Y (en) * 1996-05-21 1997-12-31 任桐 Folding and damping bicycle
CN2428391Y (en) * 2000-01-07 2001-05-02 高美鼎 Super-light multifunction folding bicycle
CN2597316Y (en) * 2002-09-30 2004-01-07 朱国一 Portable folding bicycle
US6702312B1 (en) * 1999-11-26 2004-03-09 Miksik Pavel P. Universal folding bicycle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RO102286B1 (en) * 1988-10-24 1993-03-01 Tricycle
CN2161547Y (en) * 1993-04-09 1994-04-13 张达汇 Portable folding bicycle
CN2271486Y (en) * 1996-05-21 1997-12-31 任桐 Folding and damping bicycle
US6702312B1 (en) * 1999-11-26 2004-03-09 Miksik Pavel P. Universal folding bicycle
CN2428391Y (en) * 2000-01-07 2001-05-02 高美鼎 Super-light multifunction folding bicycle
CN2597316Y (en) * 2002-09-30 2004-01-07 朱国一 Portable folding bicycle

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Publication number Publication date
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Granted publication date: 20120208

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