CN106741501A - Bicycle or electrical bicycle middle shaft mounting structure - Google Patents
Bicycle or electrical bicycle middle shaft mounting structure Download PDFInfo
- Publication number
- CN106741501A CN106741501A CN201710136092.XA CN201710136092A CN106741501A CN 106741501 A CN106741501 A CN 106741501A CN 201710136092 A CN201710136092 A CN 201710136092A CN 106741501 A CN106741501 A CN 106741501A
- Authority
- CN
- China
- Prior art keywords
- wrister
- way tube
- axis
- screw thread
- ring
- 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.)
- Granted
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Classifications
-
- 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
- B62K19/00—Cycle frames
- B62K19/30—Frame parts shaped to receive other cycle parts or accessories
- B62K19/34—Bottom brackets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
This application discloses a kind of bicycle or electrical bicycle middle shaft mounting structure, including Five-way tube and wear and the axis in Five-way tube；Also include the right wrister for cooperating, right support bearing, left wrister, left support bearing and retaining ring.The application connects axis and Five-way tube by setting the part such as left wrister, right wrister and retaining ring of special construction, prevented completely because Five-way tube axial length it is bigger than normal or less than normal caused by axis hold tightly or axial float problem.
Description
Technical field
The application is related to electric bicycle field, and in particular to a kind of bicycle or electrical bicycle middle shaft mounting structure.
Background technology
In the prior art, it is to use for the installation of the axis on Five-way tube of electric bicycle or ordinary bicycle
Be axially fixed at axis on Five-way tube by two threaded wristers of the axial locking at Five-way tube or so two ends.And require
After installation, left and right wrister and Five-way tube or so end face are closely adjacent to, it is impossible to leave gap.
However, due to the bicycle five-pipe of many manufacturer productions, there is either large or small error in its axial dimension.Such as
The axial dimension of fruit Five-way tube is less than normal, just must increase packing ring between left and right wrister and Five-way tube or so end face, to seal a left side
Axial gap between right wrister and Five-way tube or so end face, will otherwise cause left and right wrister excessive to the axial clamping force of axis
And cause axis to be unable to normal rotation.If the axial dimension of Five-way tube is bigger than normal, then left and right wrister will be caused to the axle of axis
Too small to clamping force, internal spring bearing and axis can produce axial motion, using riding for user.
The application comes therefrom.
The content of the invention
The application purpose is：A kind of bicycle or electrical bicycle middle shaft mounting structure are provided, to prevent completely because five is logical
The problem of axis holding or axial float caused by pipe axial length is bigger than normal or less than normal.
The technical scheme of the application is：A kind of bicycle or electrical bicycle middle shaft mounting structure, including：
The Five-way tube of electric bicycle, is formed with axially extending respectively on the inwall at Five-way tube axial direction left and right two ends
The left inside screw thread of Five-way tube and the right internal thread of Five-way tube；And
Axis, the axis is arranged in the Five-way tube and its axial left and right two ends is stretched out outside the Five-way tube,
And it is formed with the outer wall of the axis along the left ring-shaped step of axis and the right annular of axis of its right distribution of the first from left of axis direction one
Step；
Also include：
Right wrister, the right wrister is that the outer ring-shaped step of right wrister, the right shield are formed with cylindrical structure and its outer wall
Axially extending right wrister external screw thread, the right wrister external screw thread and the right internal thread screw thread of the Five-way tube are formed with the outer wall of wrist
Coordinate, and the right wrister ring-shaped step is axially pressed on the axial right side of the Five-way tube, so that the right side
Wrister is locked with the Five-way tube；
Right support bearing, the right support coaxial bearing is fixed in the right wrister, and the right support coaxial bearing set
Located at the right part of the axis；
Left wrister, the left wrister is that the outer ring-shaped step of left wrister, the left shield are formed with cylindrical structure and its outer wall
Axially extending left wrister external screw thread and left wrister internal thread, the left wrister external screw thread are formed respectively with the outer wall and inwall of wrist
Coordinate with the left inside screw thread of the Five-way tube, and the outer annular Step Shaft of the left wrister is to the axle for being pressed on the Five-way tube
To on left side, so that the left wrister is locked with the Five-way tube；
Left support bearing, the left support coaxial bearing is sheathed on the left part of the axis；And
Retaining ring, is formed with retaining ring annular step on the inwall of the retaining ring, made on the outer wall of the retaining ring
There are axially extending retaining ring external screw thread, the retaining ring external screw thread and the left wrister internal thread rotation tight fit, so that
The right ring-shaped step of axis is axially pressed on the left side of the right support bearing, while so that the left support bearing is by axle
To being clamped between the retaining ring annular step and the left ring-shaped step of the axis.
The application on the basis of above-mentioned technical proposal, also including following preferred scheme：
Right wrister annular step and jump-ring slot are formed with the inwall of the right wrister, the right support bearing is by axial direction
It is clamped between the right wrister annular step and the jump ring in the jump-ring slot, so as to realize the right support
The fixation of bearing and the right wrister.
Axial dimension of the externally threaded axial dimension of left wrister less than the left inside screw thread of the Five-way tube.
Axial dimension of the externally threaded axial dimension of right wrister less than the right internal thread of the Five-way tube.
The advantage of the application is：The application is by setting left wrister, right wrister and the retaining ring of special construction come in connecting
Axle and Five-way tube, have prevented because axis is held tightly or axial float is asked caused by Five-way tube axial length is bigger than normal or less than normal completely
Topic.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment is further described to the application：
Fig. 1 is the half sectional view of this bicycle or electrical bicycle middle shaft mounting structure in the embodiment of the present application；
Fig. 2 is the exploded view of this bicycle or electrical bicycle middle shaft mounting structure in the embodiment of the present application；
Wherein：1- Five-way tubes, the left inside screw thread of 1a- Five-way tubes, the right internal thread of 1b- Five-way tubes, 2- axis, the left ring of 2a- axis
Shape step, the right ring-shaped step of 2b- axis, the left wristers of 3-, the outer ring-shaped step of the left wristers of 3a-, the left wrister external screw threads of 3b-, the left shields of 3c-
Wrist internal thread, 4- left support bearings, 5- retaining rings, 5a- retaining ring annular steps, 5b- retaining ring external screw threads, the right wristers of 6-,
The outer ring-shaped step of the right wristers of 6a-, the right wrister external screw threads of 6b-, the right wrister annular steps of 6c-, 7- right support bearings, 8- jump rings.
Specific embodiment
Figures 1 and 2 show that a specific implementation of this bicycle of the application or electrical bicycle middle shaft mounting structure
Example, is that the axis mounting structure includes the Five-way tube 1 and axis 1 of bicycle or electric bicycle with traditional scheme identical.Its
In：
The left inside screw thread 1a and five of axially extending Five-way tube is formed with respectively on the inwall at the axial left and right of Five-way tube 1 two ends to lead to
The right internal thread 1b of pipe.The five of axially extending (generally axially extending in the shape of a spiral) are formed with the inwall of the axial left end of Five-way tube 1
The left inside screw thread 1a of siphunculus.The five of axially extending (generally axially extending in the shape of a spiral) are formed with the inwall of the axial right-hand member of Five-way tube 1
The right internal thread 1b of siphunculus.
Axis 2 is arranged in Five-way tube 1, and the axial left and right two ends of axis 2 are stretched out outside Five-way tube 1, to connect
Crank and foot-operated.Be formed with the outer wall of the axis 2 along its right distribution of the first from left of axis direction one the left ring-shaped step 2a of axis and
The right ring-shaped step 2b of axis.
The key improvements of the present embodiment are that the mounting structure also includes left wrister 3, and right wrister 6, left support bearing 4 is right
Spring bearing 7 and retaining ring 5.Wherein：
Right wrister 6 is that the outer ring-shaped step 6a of right wrister is formed with cylindrical structure and its outer wall.Made on the outer wall of right wrister 6
There is axially extending right wrister external screw thread 6b, right wrister external screw thread 6b coordinates with the right internal thread 1b screw threads of Five-way tube, and passes through
Aforementioned threads coordinate and cause that right wrister ring-shaped step 6a is axially pressed on the axial right side of Five-way tube 1, and then cause the right side
Wrister 6 is locked with Five-way tube 1.Because the cooperation of right wrister 6 and Five-way tube 1 is without other structures part limitation (and conventional art
In, if Five-way tube is too short, can be limited by axis and spring bearing), so the two axial compression can be made, be not in
Axial gap.
Right support bearing 7 is coaxially fixed in right wrister 6, and the coaxial sleeve of right support bearing 7 is located at the right-hand member of axis 1
Portion.Such as limited without other structures part, the right support bearing 7 can be moved axially relative to axis 2 under external force.
Left wrister 3 is that the outer ring-shaped step 3a of left wrister is formed with cylindrical structure and its outer wall.The outer wall of left wrister 3 and interior
Axially extending left wrister external screw thread 3b and left wrister internal thread 3c is formed respectively with wall.Left wrister external screw thread 3b is left with Five-way tube
Internal thread 1a screw threads coordinate, and and are coordinated by aforementioned threads and cause that the outer ring-shaped step 3a of left wrister is axially pressed on five
On the axial left side of siphunculus 1, so that left wrister (3) is locked with the Five-way tube 1.Because left wrister 3 and five leads to
The cooperation of pipe 1 is limited without other structures part and (and in conventional art, if Five-way tube is too short, can be subject to axis and spring bearing
Limitation), be not in axial gap so the two axial compression can be made.
The coaxial sleeve of left support bearing 4 is located at the left part of axis 2.Such as limited without other structures part, under external force should
Left support bearing 4 can be moved axially relative to axis 2.
Retaining ring annular step 5a is formed with the inwall of retaining ring 5, is formed with the outer wall of retaining ring 5 axially extending
Retaining ring external screw thread 5b.Retaining ring external screw thread 5b screws cooperation with left wrister internal thread 3c, so that the right ring-shaped step of axis
2b is axially pressed on the left side of right support bearing 7, while so that left support bearing 4 is clamped axially retaining ring annular platform
Between rank 5a and the left ring-shaped step 2a of axis.
By said structure, the axially position of axis 2 and Five-way tube 1 is realized.No matter Five-way tube 1 size it is bigger than normal or inclined
It is small, as long as screwing retaining ring 5 (being unable to tension, can not be excessively loose), by adjusting axial location of the retaining ring 5 in left wrister 3,
Just the axially position of axis 2 and Five-way tube 1 can be realized, the problem of axis holding or axial float is prevented completely.
In the present embodiment, the fixed form between above-mentioned right support bearing 7 and right wrister 6 is：Formed on the inwall of right wrister 6
There are right wrister annular step 6c and jump-ring slot.Right support bearing 7 is clamped axially right wrister annular step 6c and peace
Between jump ring 8 in jump-ring slot, so as to realize the fixation of right support bearing 7 and right wrister 6.
In the present embodiment, axial dimension of the axial dimension of left wrister external screw thread 3b less than the left inside screw thread 1a of Five-way tube,
Axial dimension of the axial dimension of right wrister external screw thread 6b less than the right internal thread 1b of Five-way tube.
Certainly, above-described embodiment is only the technology design and feature for illustrating the application, its object is to make people much of that
Solution present context is simultaneously implemented according to this, and the protection domain of the application can not be limited with this.It is all according to the application major technique
Equivalent transformation or modification that the Spirit Essence of scheme is done, should all cover within the protection domain of the application.
Claims (4)
1. a kind of bicycle or electrical bicycle middle shaft mounting structure, including：
Five-way tube (1), is formed with axially extending Five-way tube left inside respectively on the inwall at Five-way tube (1) axial direction left and right two ends
Screw thread (1a) and the right internal thread of Five-way tube (1b)；And
Axis (2), the axis (2) is arranged in the Five-way tube (1) and the Five-way tube is stretched out at its axial left and right two ends
(1) it is outside, and the left ring-shaped step of axis along the right distribution of the first from left of its axis direction one is formed with the outer wall of the axis (2)
(2a) and the right ring-shaped step of axis (2b)；
Characterized in that, also including：
Right wrister (6), the right wrister (6) is to be formed with the outer ring-shaped step (6a) of right wrister, institute on cylindrical structure and its outer wall
Be formed with axially extending right wrister external screw thread (6b) on the outer wall for stating right wrister (6), the right wrister external screw thread (6b) with it is described
Five-way tube right internal thread (1b) screw thread coordinates, and the right wrister ring-shaped step (6a) is axially pressed on the Five-way tube (1)
Axial right side on so that the right wrister (6) is locked with the Five-way tube (1)；
Right support bearing (7), the right support bearing (7) is coaxially fixed in the right wrister (6), and the right support bearing
(7) coaxial sleeve is located at the right part of the axis (1)；
Left wrister (3), the left wrister (3) is to be formed with the outer ring-shaped step (3a) of left wrister, institute on cylindrical structure and its outer wall
State and axially extending left wrister external screw thread (3b) and left wrister internal thread is formed respectively with the outer wall and inwall of left wrister (3)
(3c), the left wrister external screw thread (3b) coordinates with the Five-way tube left inside screw thread (1a) screw thread, and the left wrister outer shroud
Shape step (3a) is axially pressed on the axial left side of the Five-way tube (1), so that the left wrister (3) and described five
Siphunculus (1) is locked；
Left support bearing (4), left support bearing (4) coaxial sleeve is located at the left part of the axis (2)；And
Retaining ring (5), is formed with retaining ring annular step (5a) on the inwall of the retaining ring (5), the retaining ring (5)
Axially extending retaining ring external screw thread (5b), the retaining ring external screw thread (5b) and the left wrister internal thread are formed with outer wall
(3c) screws cooperation, so that the right ring-shaped step of the axis (2b) is axially pressed on the left end of the right support bearing (7)
Face, while so that the left support bearing (4) is clamped axially the retaining ring annular step (5a) and the axis is left
Between ring-shaped step (2a).
2. bicycle according to claim 1 or electrical bicycle middle shaft mounting structure, it is characterised in that the right wrister
(6) right wrister annular step (6c) and jump-ring slot are formed with inwall, the right support bearing (7) is clamped axially institute
State between right wrister annular step (6c) and the jump ring (8) in the jump-ring slot, so as to realize the right support
The fixation of bearing (7) and the right wrister (6).
3. bicycle according to claim 1 or electrical bicycle middle shaft mounting structure, it is characterised in that the left wrister
Axial dimension of the axial dimension of external screw thread (3b) less than the left inside screw thread of the Five-way tube (1a).
4. bicycle according to claim 1 or electrical bicycle middle shaft mounting structure, it is characterised in that the right wrister
Axial dimension of the axial dimension of external screw thread (6b) less than the right internal thread of the Five-way tube (1b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136092.XA CN106741501B (en) | 2017-03-08 | 2017-03-08 | Middle axle mounting structure of bicycle or electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136092.XA CN106741501B (en) | 2017-03-08 | 2017-03-08 | Middle axle mounting structure of bicycle or electric bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106741501A true CN106741501A (en) | 2017-05-31 |
| CN106741501B CN106741501B (en) | 2022-11-08 |
Family
ID=58961620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710136092.XA Active CN106741501B (en) | 2017-03-08 | 2017-03-08 | Middle axle mounting structure of bicycle or electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106741501B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019031263A (en) * | 2017-08-04 | 2019-02-28 | 株式会社シマノ | Component for bicycle and attachment structure of the same |
| US10940910B2 (en) | 2017-08-04 | 2021-03-09 | Shimano Inc. | Bicycle component and mounting structure for bicycle component |
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|---|---|---|---|---|
| CN2044553U (en) * | 1989-01-21 | 1989-09-20 | 李德明 | Universal middle axle for bicycle |
| CN1715123A (en) * | 2004-06-30 | 2006-01-04 | 株式会社岛野 | Middle shaft structure with dynamo |
| CN2795022Y (en) * | 2005-05-11 | 2006-07-12 | 浩盟车料(深圳)有限公司 | Middle shaft and crank combining device for bicycle |
| EP1780111A2 (en) * | 2005-10-28 | 2007-05-02 | Shimano Inc. | Bicycle bottom bracket assembly |
| CN101028850A (en) * | 2006-03-03 | 2007-09-05 | 坎培诺洛有限公司 | Bicycle bottom bracket assembly and adapter device for such an assembly |
| DE102013101621A1 (en) * | 2012-07-26 | 2014-01-30 | Shimano Inc. | Bicycle bottom bracket has bearing passage area which passes through bearing set, whose inner diameter is smaller than inner diameter of bearing fixing area positioned axially relative to inside of bearing passage area |
| CN104859780A (en) * | 2014-02-24 | 2015-08-26 | 株式会社岛野 | Bicycle bottom bracket assembly |
| CN206579774U (en) * | 2017-03-08 | 2017-10-24 | 苏州八方电机科技有限公司 | Bicycle or electrical bicycle middle shaft mounting structure |
-
2017
- 2017-03-08 CN CN201710136092.XA patent/CN106741501B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044553U (en) * | 1989-01-21 | 1989-09-20 | 李德明 | Universal middle axle for bicycle |
| CN1715123A (en) * | 2004-06-30 | 2006-01-04 | 株式会社岛野 | Middle shaft structure with dynamo |
| CN2795022Y (en) * | 2005-05-11 | 2006-07-12 | 浩盟车料(深圳)有限公司 | Middle shaft and crank combining device for bicycle |
| EP1780111A2 (en) * | 2005-10-28 | 2007-05-02 | Shimano Inc. | Bicycle bottom bracket assembly |
| CN101028850A (en) * | 2006-03-03 | 2007-09-05 | 坎培诺洛有限公司 | Bicycle bottom bracket assembly and adapter device for such an assembly |
| DE102013101621A1 (en) * | 2012-07-26 | 2014-01-30 | Shimano Inc. | Bicycle bottom bracket has bearing passage area which passes through bearing set, whose inner diameter is smaller than inner diameter of bearing fixing area positioned axially relative to inside of bearing passage area |
| TW201404650A (en) * | 2012-07-26 | 2014-02-01 | Shimano Kk | Bottom bracket assembly used in bicycle and bearing support component thereof |
| CN104859780A (en) * | 2014-02-24 | 2015-08-26 | 株式会社岛野 | Bicycle bottom bracket assembly |
| CN206579774U (en) * | 2017-03-08 | 2017-10-24 | 苏州八方电机科技有限公司 | Bicycle or electrical bicycle middle shaft mounting structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019031263A (en) * | 2017-08-04 | 2019-02-28 | 株式会社シマノ | Component for bicycle and attachment structure of the same |
| US10940910B2 (en) | 2017-08-04 | 2021-03-09 | Shimano Inc. | Bicycle component and mounting structure for bicycle component |
| JP2021169312A (en) * | 2017-08-04 | 2021-10-28 | 株式会社シマノ | Bicycle component and mounting structure for bicycle component |
| JP7066901B2 (en) | 2017-08-04 | 2022-05-13 | 株式会社シマノ | Bicycle components and mounting structures for bicycle components |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106741501B (en) | 2022-11-08 |
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| PB01 | Publication | ||
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| CB02 | Change of applicant information |
Address after: Suzhou Industrial Park Loufeng town in Jiangsu province and 215000 Road No. 9 Applicant after: BAFANG ELECTRIC (SUZHOU) Co.,Ltd. Address before: 215122, Suzhou Industrial Park, Jiangsu Province, No. 9, Shun Road Applicant before: SUZHOU BAFANG ELECTRIC MOTOR SCIENCE-TECHNOLOGY Co.,Ltd. |
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| GR01 | Patent grant |