CN201472601U - Combination structure of crank and five-centre through axle for bicycle - Google Patents
Combination structure of crank and five-centre through axle for bicycle Download PDFInfo
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- CN201472601U CN201472601U CN2009201565456U CN200920156545U CN201472601U CN 201472601 U CN201472601 U CN 201472601U CN 2009201565456 U CN2009201565456 U CN 2009201565456U CN 200920156545 U CN200920156545 U CN 200920156545U CN 201472601 U CN201472601 U CN 201472601U
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- axle
- packing
- connecting piece
- groove surface
- way
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Abstract
The utility model discloses a combination structure of crank and five-way axle for bicycle, which consists of a five-way pipe and two cranks. Axles are convexly provided on both ends of the five-way tube, a plurality of slots and a slot surface are provided axially on the rod body of the axle. Each of the ends of both cranks is equipped with a connection pipe, and is supported on the position of the axle by the connection pipes. A rib surface is disposed on the inner wall surface at the joint position of the connection pipe and the crank. A clearance for packing is provided axially on the connection pipe, and a end for packing is convexly provided on the outer end of the clearance for packing. Through the aforementioned structure, clearance between the axle and the connection pipe is reduced in order to improve the connection effect.
Description
Technical field
The utility model relates to bicycle crank and five-way axle unitized construction, the shaft place of this axle forms a groove surface, and the area coverage of groove surface is between 1/4th axles circle and semicircle, this connecting piece inwall end is provided with the fin face in addition again, and the fin face cooperates the groove surface of axle and is provided with, reduce the gap that is produced between axle and connecting piece by this, connect effect to increase it.
Background technology
Please by shown in Figure 7, existing a kind of bicycle crank and five-way axle unitized construction, it includes: First Five-Year Plan siphunculus 30 and two cranks 40 constitute, the two ends of First Five-Year Plan siphunculus 30 all convex with axle 31, this axle 31 is equipped with many axial grooves 32, and the end face of axle 31 offers screw 33, and be provided with dowel bolt 34 in screw 33 places locks, the end of two cranks 40 has all engaged a connecting piece 41, and pull in axle 31 places with connecting piece 41 cover, the internal face of this connecting piece 41 cooperates the groove 32 of axle 31, and convex with many axial fins 42, this connecting piece 41 axially offers a clearance for packing 43 again, and the outer end of clearance for packing 43 convexes with packing end 44, and is provided with bolt 45 and nut 46 in packing end 44 places lock.
The situation of its practical application, again please by Fig. 7, shown in Figure 8, its crank 40 is all pulled outside axle 31 with connecting piece 41 covers, the fin 42 of this connecting piece 41 is placed in the groove 32 of axle 31, when utilizing bolt 45 and nut 46 to lock in packing end 44 places, this connecting piece 41 is inwardly tightened by clearance for packing 43 places, reaches combining of axle 31 and crank 40 by this.
The above-mentioned existing structure of detailed sight is not difficult to realize that it has remained a little weak point, and major cause is as follows:
One, this axle 31 is equipped with many axial grooves 32, the internal face of connecting piece 41 cooperates the groove 32 of axle 31 in addition, and convex with many axial fins 42, when its connecting piece 41 is inwardly locked by clearance for packing 43 places, this stress concentration is in the dual-side of clearance for packing 43, promptly cause between connecting piece 41 and the axle 31 and produce the gap, make it link effect and reduce.
Two, its axle 31 is equipped with many axial grooves 32, the internal face of connecting piece 41 cooperates the groove 32 of axle 31 in addition, and convexes with many axial fins 42, and promptly groove 32 is big with the working (finishing) area of fin 42, the structure that this is comparatively complicated will cause the increase of tooling cost.
Three, this crank 40 is all pulled outside axle 31 with connecting piece 41 covers, the fin 42 of this connecting piece 41 is to be placed in the groove 32 of axle 31, and groove 32 and fin 42 are all with the setting of ring-type, so can't limit to its installation position, when installing two overhung cranks 40 is that symmetrical condition of poor is arranged, with the assembler who makes the mistake.
In view of this, the creator is in line with the manufacturing development of being engaged in Related product for many years and design experiences, at above-mentioned target, in detail after design and the scrupulous assessment, eventually the utility model of a true tool practicality.
The technical matters point that desire solves:
Existing a kind of bicycle crank and five-way axle unitized construction, this axle is to be equipped with many axial grooves, the internal face of connecting piece is to convex with many axial fins in addition, and the fin of connecting piece is to be placed in the groove of axle, when its connecting piece is inwardly locked by the clearance for packing place, this stress concentration promptly causes between connecting piece and the axle and produces the gap in the dual-side of clearance for packing, makes it link effect and reduces.
The utility model content
The purpose of this utility model is, a kind of bicycle crank and five-way axle unitized construction are provided, it includes: a First Five-Year Plan siphunculus and a crank combine, the two ends of First Five-Year Plan siphunculus all convex with axle, and the end face of axle offers screw, and be provided with dowel bolt in screw place lock, the shaft place of this axle axially offers many grooves and forms a groove surface, and the area coverage of groove surface is between 1/4th axles circle and semicircle, this axle is provided with a side grain with respect to the subtend place of groove surface again, the groove surface of its five-way pipe two ends axle is to be oppositely directed setting mutually, the end of two cranks all is formed with a connecting piece, and pull in the axle place to link pipe box, the inwall end of this connecting piece and crank institute junction is provided with the fin face, and the fin face cooperates the groove surface of axle and be provided with, and this connecting piece axially offers a clearance for packing again, and the outer end of clearance for packing convexes with the packing end, and is provided with bolt and nut in packing end place lock.
The axle place of its five-way pipe is formed with groove surface and side grain, and crank is all pulled outside axle to link pipe box, the fin face of this connecting piece fits in the groove surface of axle, and clearance for packing is to be the side grain end, when utilizing bolt and nut to lock in packing end place, the fin face of its connecting piece is close to its groove surface fully, and be subjected to groove institute snaps into position, and the side grain by axle, when making the packing of packing end, clearance for packing can contract in place, the formed space of side grain, can make the plane of orientation of clearance for packing fit in axle, obtain best binding effect by this, be provided with a location bolt in the screw place of axle lock in addition, make the axial location effect that increases crank.
A kind of bicycle crank of the utility model and five-way axle unitized construction, it comprises:
The two ends of First Five-Year Plan siphunculus all convex with axle, and the shaft place of this axle axially offers many grooves and forms a groove surface, and the area coverage of groove surface is between 1/4th axles circle and semicircle;
The end of two cranks all is formed with a connecting piece, and pull in the axle place to link pipe box, the inwall end of this connecting piece and crank institute junction is provided with the fin face, and the fin face cooperates the groove surface of axle and is provided with, this connecting piece axially offers a clearance for packing again, and the outer end of clearance for packing convexes with the packing end.
Described bicycle crank and five-way axle unitized construction, wherein, the end face of described axle offers screw, and is provided with dowel bolt in screw place lock.
Described bicycle crank and five-way axle unitized construction, wherein, described axle is provided with a side grain with respect to the subtend place of groove surface.
Described bicycle crank and five-way axle unitized construction, wherein, the clearance for packing end of described connecting piece cooperates axle and inwardly is protruding with plane of orientation.
Described bicycle crank and five-way axle unitized construction, wherein, the groove surface of described five-way pipe two ends axle is oppositely directed setting mutually.
Described bicycle crank and five-way axle unitized construction, wherein, the packing end place of described connecting piece lock is provided with bolt and nut.
Effect against existing technologies:
One, its axle forms with groove surface and fin face with connecting piece and is connected, and the area coverage of groove surface is between 1/4th axles circle and semicircle, reduces the gap that is produced between axle and connecting piece with this, increases it and connects effect.
Two, the area coverage of its groove surface is between 1/4th axles circle and semicircle, and the fin face cooperates the groove surface of axle and is provided with, and promptly axle and connecting piece only carry out the partial operation processing, and its structure is more simplified, and reduce cost of processing.
Three, the fin face of its connecting piece cooperates the groove surface of axle and is provided with, and by the unicity of fin face and groove surface, can clearly distinguish the coupling position of looking two cranks and axle, prevents wrong stack-mounted situation.
Description of drawings
Fig. 1: be block diagram of the present utility model;
Fig. 2: be three-dimensional exploded view of the present utility model;
Fig. 3: be fragmentary sectional elevation view of the present utility model;
Fig. 4: be that analysing and observe of practical application of the present utility model made cardon;
Fig. 5: the cutaway view that is side grain of the present utility model place;
Fig. 6: the cutaway view that is plane of orientation of the present utility model place;
Fig. 7: be existing three-dimensional exploded view;
Fig. 8: be existing analyse and observe make cardon.
[main element nomenclature]
The utility model part:
Five-way pipe----10 axles-----11
Screw----12 dowel bolt---13
Groove----14 groove surfaces----15
Side grain----16
Crank----20 connecting pieces----21
Fin face----22 clearance for packing---23
Plane of orientation--231 packing ends----24
Bolt----25 nuts-----26
Existing part:
Five-way pipe----30 axles-----31
Groove----32 screws-----33
Dowel bolt---34
Crank----40 connecting pieces----41
Fin----42 clearance for packing---43
Packing end----44 bolts-----45
Nut-----46
The specific embodiment
Understand and understanding for having the purpose of this utility model, feature and effect further, below please cooperate [brief description of drawingsfig] to describe in detail now as the back:
Earlier please by Fig. 1, Fig. 2, sight shown in Figure 3 it, a kind of bicycle crank and five-way axle unitized construction, it includes:
The two ends of First Five-Year Plan siphunculus 10 all convex with axle 11, and the end face of axle 11 offers screw 12, and be provided with dowel bolt 13 in screw 12 places locks, the shaft place of this axle 11 axially offers many grooves 14 and forms a groove surface 15, and the area coverage of groove surface 15 is that the groove surface 15 of its five-way pipe 10 two ends axles 11 is to be oppositely directed setting mutually between 1/4th axles circle and semicircle;
The end of two cranks 20 all is formed with a connecting piece 21, and pull in axle 11 places with connecting piece 21 cover, this connecting piece 21 is provided with fin face 22 with the inwall end of 20 junctions of crank, and fin face 22 cooperates the groove surface 15 of axle 11 and is provided with, this connecting piece 21 axially offers a clearance for packing 23 again, and the outer end of clearance for packing 23 convexes with packing end 24, and is provided with bolt 25 and nut 26 in packing end 24 places lock.
The effect of its practical application, again please by Fig. 2, Fig. 3, sight shown in Figure 4 it, axle 11 places of its five-way pipe 10 are formed with groove surface 15, and crank 20 is all pulled outside axle 11 with connecting piece 21 covers, the fin face 22 of this connecting piece 21 fits in the groove surface 15 of axle 11, when utilizing bolt 25 and nut 26 to lock in packing end 24 places, the fin face 22 of its connecting piece 21 is close to its groove surface 15 fully, and be subjected to 14 snaps into position of groove, improve it by this and link effect, be provided with a location bolt 13 in screw 12 places of axle 11 lock in addition, make the axial location effect that increases crank 20.
The structure that it is equivalent, again please by sight shown in Figure 5 it, its axle 11 is provided with a side grain 16 with respect to the subtend place of groove surface 15, and the fin face 22 of connecting piece 21 fits in the groove surface 15 of axle 11, and clearance for packing 23 is to be that side grain 16 end places form locking, continuous please by sight shown in Figure 6 it, clearance for packing 23 ends of connecting piece 21 cooperate the side grain 16 of axle 11 and inwardly are protruding with plane of orientation 231, when utilizing bolt 25 and nut 26 to lock in packing end 24 places, the fin face 22 of its connecting piece 21 is close to its groove surface 15 fully, and be subjected to 14 snaps into position of groove, and the side grain 16 by axle 11, when making 24 packings of packing end, clearance for packing 23 all can contract in place, side grain 16 formed spaces, can make the dual-side of clearance for packing 23 fit in axle 11, obtain the binding effect of equivalence by this.
Structure by above-mentioned specific embodiment, can obtain following benefit: one, its axle 11 forms with groove surface 15 and fin face 22 with connecting piece 21 and is connected, and the area coverage of groove surface 15 is between 1/4th axles circle and semicircle, reduce axle 11 and 21 gaps that produced of connecting piece by this, connect effect to increase it; Two, the area coverage of its groove surface 15 is between 1/4th axles circle and semicircle, and fin face 22 cooperates the groove surface 15 of axles 11 and is provided with, be that axle 11 is carried out the partial operation processing with 21 of connecting pieces, its structure more simplified, to reduce cost of processing; Three, the fin face 22 of its connecting piece 21 cooperates the groove surface 15 of axle 11 and is provided with, and by the unicity of fin face 22 with groove surface 15, can clearly distinguish the coupling position of looking two cranks 20 and axle 11, to prevent the situation of error group dress.
In sum, the utility model has reached breakthrough structure design really, and has the author content of improvement, can reach simultaneously usability and progressive on the industry again, and the utility model does not see any publication, also have a novelty, the regulation when meeting the relevant law of patent law proposes novel patent application in accordance with the law.
The above only is a preferred embodiment of the present utility model, when can not with the scope implemented of qualification the utility model; Promptly the equalization of being done according to the utility model claim generally changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (6)
1. bicycle crank and five-way axle unitized construction is characterized in that comprising:
The two ends of First Five-Year Plan siphunculus all convex with axle, and the shaft place of this axle axially offers many grooves and forms a groove surface, and the area coverage of groove surface is between 1/4th axles circle and semicircle;
The end of two cranks all is formed with a connecting piece, and pull in the axle place to link pipe box, the inwall end of this connecting piece and crank institute junction is provided with the fin face, and the fin face cooperates the groove surface of axle and is provided with, this connecting piece axially offers a clearance for packing again, and the outer end of clearance for packing convexes with the packing end.
2. bicycle crank according to claim 1 and five-way axle unitized construction is characterized in that the end face of described axle offers screw, and are provided with dowel bolt in screw place lock.
3. bicycle crank according to claim 1 and five-way axle unitized construction is characterized in that described axle is provided with a side grain with respect to the subtend place of groove surface.
4. bicycle crank according to claim 1 and five-way axle unitized construction is characterized in that, the clearance for packing end of described connecting piece cooperates axle and inwardly is protruding with plane of orientation.
5. bicycle crank according to claim 1 and five-way axle unitized construction is characterized in that, the groove surface of described five-way pipe two ends axle is oppositely directed setting mutually.
6. bicycle crank according to claim 1 and five-way axle unitized construction is characterized in that, the packing end place lock of described connecting piece is provided with bolt and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201565456U CN201472601U (en) | 2009-07-01 | 2009-07-01 | Combination structure of crank and five-centre through axle for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201565456U CN201472601U (en) | 2009-07-01 | 2009-07-01 | Combination structure of crank and five-centre through axle for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201472601U true CN201472601U (en) | 2010-05-19 |
Family
ID=42408845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201565456U Expired - Lifetime CN201472601U (en) | 2009-07-01 | 2009-07-01 | Combination structure of crank and five-centre through axle for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201472601U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112660286A (en) * | 2020-12-31 | 2021-04-16 | 句容志新精密五金零件有限公司 | Integrated bicycle head bowl group based on carbon fiber reinforcement |
| CN112660287A (en) * | 2020-12-31 | 2021-04-16 | 句容志新精密五金零件有限公司 | Quick assembly structure for front fork bowl group |
-
2009
- 2009-07-01 CN CN2009201565456U patent/CN201472601U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112660286A (en) * | 2020-12-31 | 2021-04-16 | 句容志新精密五金零件有限公司 | Integrated bicycle head bowl group based on carbon fiber reinforcement |
| CN112660287A (en) * | 2020-12-31 | 2021-04-16 | 句容志新精密五金零件有限公司 | Quick assembly structure for front fork bowl group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |