CN2795022Y - Middle shaft and crank combining device for bicycle - Google Patents
Middle shaft and crank combining device for bicycle Download PDFInfo
- Publication number
- CN2795022Y CN2795022Y CNU2005200193176U CN200520019317U CN2795022Y CN 2795022 Y CN2795022 Y CN 2795022Y CN U2005200193176 U CNU2005200193176 U CN U2005200193176U CN 200520019317 U CN200520019317 U CN 200520019317U CN 2795022 Y CN2795022 Y CN 2795022Y
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- CN
- China
- Prior art keywords
- crank
- bearing
- axis
- way pipe
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a middle shaft and crank combining device for a bicycle, which comprises a five-way pipe, and a middle shaft which passes through the internal part of the five-way pipe; the utility model also comprises a locking ring, a left crank, a left bearing, a left adjusting component, and a large gasket which are sequentially and fixedly arranged on the left side of the five-way pipe, and a large gasket, a right adjusting component, a right bearing, and a right crank which are sequentially and fixedly arranged on the right side of the five-way pipe, wherein the left crank and the right crank are respectively provided with a supporting seat on one side; the external peripheries of the left bearing and the right bearing are respectively and fixedly combined in the supporting seats of the left crank and the right crank, and the internal peripheries of the left bearing and the right bearing are respectively and fixedly sheathed on the left adjusting component and the right adjusting component. The utility model can reinforce bearing strength and increase transmission performance. The utility model is easy to lock in the assembly process, and disassembly is caused to be simple.
Description
[technical field]
The utility model relates to a kind of axis and crank composite set of bicycle.
[background technology]
The axis of traditional bicycle and crank composite set are shown in Figure 1A, 1B, left crank 8, left bearing 3, left regulating part 7 that it comprises five-way pipe 6, is located in the axis 1 in the five-way pipe 6 and is fixedly installed on this five-way pipe left side in regular turn, and the right regulating part 4, right bearing 33, the right crank 2 that are fixedly installed on this five-way pipe right side in regular turn, left side crank 8 is provided with fluting 14, secure bond is in this left side regulating part 7, right regulating part 4 respectively for the outer peripheral edges of left bearing 3, right bearing 33, and the inner peripheral of this left bearing 3, right bearing 33 fixed cover respectively is located on this axis 1.Axis 1 two ends periphery is provided with in conjunction with tooth, axis 1 and right crank 2 are by fix in conjunction with the tooth riveting together, after beating makes axis 1 by right regulating part 4 and left regulating part 7, again left crank 8 is embedded axis 1 in conjunction with in the tooth 16, again axis screw 13 is screwed in axis 1 locking, will divide 12 packings of lock screw again to finish assembling.The shortcoming of this assembling mode is that this left bearing 3, right bearing 33 difference secure bond are in this left side regulating part 7, right regulating part 4, the point of application apart from left and right sides crank has segment distance, and left and right sides bearing specification is conditioned the part dimensional restriction and lives and can't strengthen, transmission and intensity to whole group structure impact, and left crank 8 is locking again behind fluting, it can't closely cooperate in conjunction with tooth totally, and can cause in conjunction with the tooth unbalance stress after the application of force influences intensity.
The incorporate dismounting mode in traditional bicycle front wheel axle center, left crank 8 are by the left crank that gets loose the slot two-screw 12 at 14 places and axis screw 13 and finish the dismounting of left crank 8.The dismounting mode of right crank 2 just can get loose right crank 2 to finish dismounting to beat axis 1 left end as shown in Figure 2.
[utility model content]
The purpose of this utility model provides a kind of axis and crank composite set of bicycle, can strengthen bearing strength and shorten the moment of torsion, improves the performance and the structural strength of transmission greatly, and has in assembling process and be easy to the effect locking and dismantle.
The axis of a kind of bicycle of the present utility model and crank composite set, comprise the five-way pipe, the axis that is located in the five-way pipe reaches the binding ring that is fixedly installed on this five-way pipe left side in regular turn, left side crank, left bearing, left side regulating part, big pad, and the big pad that is fixedly installed on this five-way pipe right side in regular turn, right regulating part, right bearing, right crank, it is characterized in that: this left side crank, one side of right crank is respectively equipped with bearing, this left bearing, the outer peripheral edges difference secure bond of right bearing is at this left side crank, in the bearing of right crank, this left bearing, the inner peripheral of right bearing fixed cover respectively is located at this left side regulating part, on the right regulating part.
The axis of described bicycle and crank composite set is characterized in that: this axis two ends periphery is provided with in conjunction with tooth, and this left side crank, right crank are provided with the profile of tooth combined hole, this profile of tooth combined hole and this axis combine the tooth tabling; This axis left end is provided with screw, this binding ring comprises that one is the tight lock part and of plate-like from this outward extending threaded portion of tight lock part central authorities, this threaded portion is combined on the screw of this axis left end, be provided with two locking holes on this tight lock part in addition, this left side crank is provided with the screw with the cooresponding perforation of this locking hole, passes the screw locking that this locking hole screws in this left side crank respectively with two-screw.
The axis of the utility model bicycle and crank composite set can strengthen bearing strength and the moment that has shortened torsion, improve the performance of transmission greatly, are easy to locking in assembling process, and make dismounting simpler and easy, need not beat.
The utility model compared with prior art, left crank need not the fluting, can improve structural strength; The combination of left side crank and axis, by fastening with two screws again after the binding ring locking, the dual locking effect of tool, more firm than general traditional open flume type structure.
The utility model compared with prior art, Y-axis is housed in the crank of the left and right sides, is not to be assembled in the regulating part, so can increase the external diameter of bearing and reduce torque, improves structural strength greatly.
[description of drawings]
Figure 1A is a traditional crank package assembly generalized section, and Figure 1B is the lateral plan of Figure 1A.
Fig. 2 is traditional right crank dismounting scheme drawing.
Fig. 3 is the utility model schematic appearance.
Fig. 4 is a STRUCTURE DECOMPOSITION scheme drawing of the present utility model.
Fig. 5 A is a structural profile scheme drawing of the present utility model, and Fig. 5 B is the lateral plan of Fig. 5 A.
Fig. 6 is a right crank dismounting scheme drawing of the present utility model.
Fig. 7 is an another right crank dismounting scheme drawing of the present utility model.
Fig. 8 is a left crank dismounting scheme drawing of the present utility model.
Fig. 9 is an another left crank dismounting scheme drawing of the present utility model.
[specific embodiment]
Shown in Fig. 3,4,5A, 5B, the axis of bicycle of the present utility model and crank composite set, the axis 1 that comprises five-way pipe 6, is located in the five-way pipe 6 reaches binding ring 9, left crank 8, left bearing 3, left regulating part 7, the big pad 5 that is fixedly installed on these five-way pipe 6 left sides in regular turn, and the big pad 5, right regulating part 4, right bearing 33, the right crank 2 that are fixedly installed on these five-way pipe 6 right sides in regular turn; One side of this left side crank 8, right crank 2 is respectively equipped with bearing 15, secure bond is in the bearing 15 of this left side crank 8, right crank 2 respectively for the outer peripheral edges of this left bearing 3, right bearing 33, and the inner peripheral of this left bearing 3, right bearing 33 fixed cover respectively is located on this left side regulating part 7, the right regulating part 4.This axis 1 two ends periphery is provided with in conjunction with tooth 16, and this left side crank 8, right crank 2 are provided with profile of tooth combined hole 17, this profile of tooth combined hole 17 and this axis 1 combine tooth 16 tablings; This axis 1 left end is provided with screw 18, this binding ring 9 comprises that one is the tight lock part 91 and of plate-like from these tight lock part 91 central outward extending threaded portions 92, this threaded portion 92 is combined on the screw 18 of this axis 1 left end, be provided with 12 locking holes 93 on this tight lock part 91 in addition, this left side crank is provided with the screw 94 with the 93 cooresponding perforations of this locking hole, passes screw 94 lockings of minipad 10 and this locking hole 93 these left side cranks 8 of screw-in respectively with two-screw 11.
During assembling, can use big specification left and right sides bearing 3,33 to be pressed in the bearing 15 interior close fits that form of left crank 8 and right crank 2, then axis 1 is pressed with right crank 2 fixed together in conjunction with tooth 16 rivetings, the right regulating part 4 and the left regulating part 7 that axis 1 are passed from the right be locked at five-way pipe 6, the left crank 8 that left bearing 3 then will be housed again embed axis 1 left end in conjunction with tooth 16, then lock binding ring 9 again.Rely on locking of binding ring 9 that left and right sides crank is fastened on left and right adjusting part 7,4 and the axis 1, then pass minipad 10 with two screws 11 again and binding ring 9 is locked on left crank 8 corresponding two screws 94, thereby reach the locking effect of the best.
The dismounting mode of the right crank 2 of the utility model, as shown in Figure 6, be two screws 11 by the left crank 8 that gets loose, after the contact surface that withdraws from binding ring 9 and left crank 8 again reaches certain distance L 1, lock two screws 11 again, as shown in Figure 7, thereby withdraw from the distance that withdraws from of the right crank 2 to L2 that has axis, again screw 11 and binding ring 9 are got loose, take off right crank 2, finished the dismounting of withdrawing from right crank 2.
Crank dismounting mode in the utility model left side withdraws from screw 11 and binding ring 9, as shown in Figure 8.Again with two screws 11 locking, as shown in Figure 9, contact with left regulating part 7 inner end surfaces and eject the left crank 8 that has bearing by two screw 11 terminal surfaces, promptly finished the dismounting of withdrawing from left crank 8.
Claims (2)
1, a kind of axis of bicycle and crank composite set, comprise the five-way pipe, the axis that is located in the five-way pipe reaches the binding ring that is fixedly installed on this five-way pipe left side in regular turn, left side crank, left bearing, left side regulating part, big pad, and the big pad that is fixedly installed on this five-way pipe right side in regular turn, right regulating part, right bearing, right crank, it is characterized in that: this left side crank, one side of right crank is respectively equipped with bearing, this left bearing, the outer peripheral edges difference secure bond of right bearing is at this left side crank, in the bearing of right crank, this left bearing, the inner peripheral of right bearing fixed cover respectively is located at this left side regulating part, on the right regulating part.
2, the axis of bicycle as claimed in claim 1 and crank composite set is characterized in that: this axis two ends periphery is provided with in conjunction with tooth, and this left side crank, right crank are provided with the profile of tooth combined hole, this profile of tooth combined hole and this axis combine the tooth tabling; This axis left end is provided with screw, this binding ring comprises that one is the tight lock part and of plate-like from this outward extending threaded portion of tight lock part central authorities, this threaded portion is combined on the screw of this axis left end, be provided with two locking holes on this tight lock part in addition, this left side crank is provided with the screw with the cooresponding perforation of this locking hole, passes the screw locking that this locking hole screws in this left side crank respectively with two-screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200193176U CN2795022Y (en) | 2005-05-11 | 2005-05-11 | Middle shaft and crank combining device for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200193176U CN2795022Y (en) | 2005-05-11 | 2005-05-11 | Middle shaft and crank combining device for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795022Y true CN2795022Y (en) | 2006-07-12 |
Family
ID=36812784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200193176U Expired - Fee Related CN2795022Y (en) | 2005-05-11 | 2005-05-11 | Middle shaft and crank combining device for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795022Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741501A (en) * | 2017-03-08 | 2017-05-31 | 苏州八方电机科技有限公司 | Bicycle or electrical bicycle middle shaft mounting structure |
-
2005
- 2005-05-11 CN CNU2005200193176U patent/CN2795022Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741501A (en) * | 2017-03-08 | 2017-05-31 | 苏州八方电机科技有限公司 | Bicycle or electrical bicycle middle shaft mounting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |