CN206367554U - Crank construction for bicycle - Google Patents
Crank construction for bicycle Download PDFInfo
- Publication number
- CN206367554U CN206367554U CN201621336062.0U CN201621336062U CN206367554U CN 206367554 U CN206367554 U CN 206367554U CN 201621336062 U CN201621336062 U CN 201621336062U CN 206367554 U CN206367554 U CN 206367554U
- Authority
- CN
- China
- Prior art keywords
- corpus unguis
- claw
- crank
- shank
- degree
- 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
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A kind of crank construction for bicycle, it includes a crank body, the crank body has a shank, and by the integrally formed claw in shank one end, the claw is that a four paws structure has sequentially formed first with axle center, two, three, four corpus unguis, whereby, the weight of crank body 10 can not only be greatly reduced, actually reach light weight effect, on the other hand, because the crank body 10 tramples first corpus unguis 121 in direction clockwise, angle between 4th corpus unguis 124 is smaller, so that the first corpus unguis 121, closer to the distance and lift structure intensity between 4th corpus unguis 124, effectively support the moment of shank 11 tramples power, and prevent claw 12 from having fracture doubt, the crank body 10 is made to possess certain use intensity, promote structure service life simultaneously, lamps structure practicality.
Description
Technical field
The utility model relates to a kind of bicycle crank, particularly a kind of lightweight and possesses structural strength voluntarily
Car crank structure.
Background technology
Common crank structure is generally five claw type formulas on the market at present, will with equal angular and identical spacing by five claws
Trample that power is dispersed, actually reach the transmission of power, and possess the intensity of crank structure, but the crank of the five claw type formula
Construction weight is not light, is pursued in modern society under the demand of riding speed, and it is also following particularly important at present that car body lightweight, which is,
Target, therefore, has related dealer to develop a kind of crank of four paws pattern, claw quantity is reduced, and then reach light weight at present
The effect of change；But four claws are still molded by current four paws crank with equal angular and identical spacing sequential so that each pawl
The angle and distance in portion are widened, and then cause structural strength to be disperseed so that each claw lacks support strength, for a long time by
Moment is trampled under the compressing of power, real tool fracture doubt, and structure service life is greatly reduced, lacks practicality.
Utility model content
The utility model technical problem to be solved be in view of the above-mentioned problems existing in the prior art there is provided it is a kind of from
Driving crank structure.
A kind of crank construction for bicycle, it includes a crank body, and the crank body has a shank, and by the shank
The integrally formed claw in one end, the claw is that a four paws structure has sequentially formed the first corpus unguis, the second corpus unguis, third claw with axle center
Body and the 4th corpus unguis, form 90 degree of angle between first corpus unguis, the second corpus unguis, and are divided into shank both sides with equal angular,
Diagonal and neighbouring second corpus unguis, the one third claw body of formation of first corpus unguis, the third claw body is located at same with first corpus unguis
On extension line, and 90 degree of angles of formation between two corpus unguis, and there is a four paws between first corpus unguis and the third claw body
Body, the four paws body is located at trampling clockwise for the shank and formed between direction, and the 4th corpus unguis and first corpus unguis less than 90
The angle of degree, while forming the angle more than 90 degree between the third claw body, shortens between the 4th corpus unguis and the first corpus unguis whereby
Distance, and then possess structural strength, by said structure, to constitute a kind of crank construction for bicycle.
Further, 70 degree of angle is formed between the 4th corpus unguis and first corpus unguis, and the 4th corpus unguis and the 3rd
110 degree of angle is then formed between corpus unguis.
Effect and purpose of the present utility model are：The claw of the crank body is a four paws structure, can not only be greatly reduced
The weight of crank body, actually reaches light weight effect, on the other hand, because the crank body tramples the first of direction clockwise
Angle between corpus unguis and the 4th corpus unguis is smaller so that the closer to the distance and lift structure intensity between the first corpus unguis and the 4th corpus unguis,
Effectively support shank moment tramples power, and prevents claw from having fracture doubt, makes the crank body possess certain use strong
Degree, while promoting structure service life, lamps structure practicality.
Brief description of the drawings
Fig. 1：For stereogram of the present utility model；
Fig. 2：Front view on fluted disc is installed on to be of the present utility model；
Fig. 3：View (one) is actually trampled to be of the present utility model；
Fig. 4：View (two) is trampled to be of the present utility model clockwise.
Description of reference numerals：
10 crank bodies；
11 shanks；
12 claws；
121 first corpus unguis；
122 second corpus unguis；
123 third claw bodies；
124 the 4th corpus unguis；
13 axle center；
20 fluted discs.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art
The utility model can be better understood from and can be practiced, but illustrated embodiment is limited not as to of the present utility model.
First, first refer to shown in Fig. 1, Fig. 2, a kind of crank construction for bicycle, it includes a crank body 10, the crank
Body 10 has a shank 11, and by the integrally formed claw 12 in the one end of shank 11, the claw 12 be a four paws structure with
Axle center 13 has sequentially formed the first corpus unguis 121, the second corpus unguis 122, the corpus unguis 124 of third claw body 123 and the 4th, first corpus unguis
121st, 90 degree of angle is formed between the second corpus unguis 122, and the both sides of shank 11 are divided into equal angular, first corpus unguis 121
Diagonal and neighbouring second corpus unguis 122, one third claw body 123 of formation, the third claw body 123 is located at same with first corpus unguis 121
On extension line, and form between second corpus unguis 122 90 degree of angle, and tool between first corpus unguis 121 and the third claw body 123
There is one the 4th corpus unguis 124, the 4th corpus unguis 124 is located at the clockwise of the shank 11 and tramples direction, and the 4th corpus unguis 124 is with being somebody's turn to do
The angle less than 90 degree is formed between first corpus unguis 121, it is preferably 70 degree of angle, while being formed between the third claw body 123
Angle more than 90 degree, it is preferably 110 degree of angle, shorten whereby between the 4th corpus unguis 124 and the first corpus unguis 121 away from
From, and then possess structural strength, by said structure, to complete a kind of crank construction for bicycle.
The state of its structure actual use, then refer to shown in Fig. 2 to Fig. 4, the crank body 10 is with claw 12 and tooth
Disk 20 is combined, and tramples the operation that bicycle is reached with active toothed disk 20 clockwise by shank 11 through user, due to the claw 12
The angle between the first corpus unguis 121 and the 4th corpus unguis 124, and the 4th corpus unguis 124 and the first corpus unguis 121 is sequentially formed clockwise
Degree forms the folder degree less than 90 degree so that the 4th corpus unguis 124 and the first corpus unguis 121 lift the knot at the position because of Distance Shortened
Structure intensity, whereby, when user tramples shank 11 clockwise, its moment power falls within the first corpus unguis 121 and of claw 12
Four corpus unguis 124, the claw 12 can support the power of trampling of user really, and strength is transferred into fluted disc 20 reaches bicycle
Operation.
By means of the structure of above-mentioned specific embodiment, following effects are can obtain：The claw 12 of the crank body 10 is a four paws
Structure, can not only be greatly reduced the weight of crank body 10, actually reach light weight effect, on the other hand, due to the crank sheet
The angle that body 10 is trampled between first corpus unguis 121 in direction, the 4th corpus unguis 124 clockwise is smaller so that the first corpus unguis the 121, the 4th
Closer to the distance between corpus unguis 124 and lift structure intensity, effectively the support moment of shank 11 trample power, and prevent claw 12 from having
Doubt is broken, makes the crank body 10 possess certain use intensity, while promoting structure service life, lamps structure practicality.
Embodiment described above is only the preferred embodiment to absolutely prove the utility model and being lifted, the utility model
Protection domain not limited to this.Equivalent substitute or change that those skilled in the art are made on the basis of the utility model
Change, within protection domain of the present utility model.Protection domain of the present utility model is defined by claims.
Claims (2)
1. a kind of crank construction for bicycle, it is characterised in that comprising a crank body, the crank body has a shank, and
By the integrally formed claw in shank one end, the claw is four paws structure, and has sequentially formed the first corpus unguis, the second pawl with axle center
Body, third claw body and the 4th corpus unguis, form 90 degree of angle between first corpus unguis, the second corpus unguis, and are divided into equal angular
Shank both sides, diagonal and neighbouring second corpus unguis, the one third claw body of formation of first corpus unguis, the third claw body and first pawl
Body is located on same extension line, and 90 degree of angles of formation between two corpus unguis, and has between first corpus unguis and the third claw body
There is one the 4th corpus unguis, the four paws body is located at trampling clockwise between direction, and the 4th corpus unguis and first corpus unguis for the shank
The angle less than 90 degree is formed, while forming the angle more than 90 degree between the third claw body.
2. a kind of crank construction for bicycle according to claim 1, it is characterised in that the 4th corpus unguis and first corpus unguis
Between form 70 degree of angle, and 110 degree of angle is then formed between the 4th corpus unguis and the third claw body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621336062.0U CN206367554U (en) | 2016-12-07 | 2016-12-07 | Crank construction for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621336062.0U CN206367554U (en) | 2016-12-07 | 2016-12-07 | Crank construction for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206367554U true CN206367554U (en) | 2017-08-01 |
Family
ID=59393961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621336062.0U Expired - Fee Related CN206367554U (en) | 2016-12-07 | 2016-12-07 | Crank construction for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206367554U (en) |
-
2016
- 2016-12-07 CN CN201621336062.0U patent/CN206367554U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2002016156A3 (en) | Wheel drive unit | |
| EP2106989A3 (en) | Vehicle device for preventing the leaving of the driving lane | |
| BR0313213A (en) | highly dispersible precipitating silicic acid with larger surface | |
| DE60012090D1 (en) | Engine torque control for drivetrain with positive shift clutches | |
| CN206367554U (en) | Crank construction for bicycle | |
| EP1707655A4 (en) | Carbon fiber structure | |
| EP1495906A3 (en) | Industrial tractor with electric propulsion | |
| CN202663821U (en) | Threshing cylinder structure of combine harvester | |
| CN103233841B (en) | The shock-resistant starting mechanism of air-cooled diesel engine | |
| CN201475245U (en) | Double-fly-wheel mechanism of single-cylinder diesel engine | |
| CN204968771U (en) | Ornamental trees and shrubs winter protection area | |
| CN207206278U (en) | A kind of universal ratchet | |
| Kaushik et al. | Physico-chemical characteristics and zooplankton population of a perennial tank, Matsya Sarovar, Gwalior | |
| CN204004056U (en) | A kind of automobile clutch waveform splinter | |
| CN201538263U (en) | Wear-resisting automobile foot pad | |
| DE502007003781D1 (en) | mine | |
| CN203686057U (en) | Brake camshaft | |
| CN201573151U (en) | Rotary type multifunctional screwdriver | |
| CN203189699U (en) | Bag for refrigerating or heating automobile shift lever | |
| CN206049827U (en) | A kind of driver's cabin damping device | |
| CN203348429U (en) | Inverse-rotation-preventing flywheel of motorcycle engine | |
| CN202282136U (en) | Building doorplate | |
| CN201175193Y (en) | Winter summer double-purpose pillow | |
| CN204226086U (en) | Air-cooled diesel engine starter friction cover plate | |
| CN205566986U (en) | Rotary harrow fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170801 Termination date: 20191207 |