CN205769960U - The clutch unit of bicycle chain puller - Google Patents
The clutch unit of bicycle chain puller Download PDFInfo
- Publication number
- CN205769960U CN205769960U CN201620484043.6U CN201620484043U CN205769960U CN 205769960 U CN205769960 U CN 205769960U CN 201620484043 U CN201620484043 U CN 201620484043U CN 205769960 U CN205769960 U CN 205769960U
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- Prior art keywords
- ratchet
- detent
- bicycle chain
- rotating shaft
- clutch unit
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- 239000012634 fragment Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
This utility model relates to the clutch unit of a kind of bicycle chain puller, has body and the enclosing cover covering conjunction mutually, and positioning component and pressure-applying unit are then located in the inner space of body and enclosing cover.The end face of body is provided with a storage tank and is articulated in a rotating shaft, makes rotating shaft protrude out the bottom of storage tank；Positioning component have a ratchet be articulated in storage tank and with rotating shaft synchronous axial system, at least one detent is adjacent to ratchet can be relatively close or away from ratchet, and at least one elastic component, is used for applying the elastic force towards ratchet to each detent；Pressure-applying unit is for applying resistance to ratchet；Wherein, ratchet is provided with the ring-type a plurality of ratchets arranged at equal intervals, each detent be provided with an engaging tooth be engaged in ratchet one of them.Thus, this utility model in contrast to the structure of traditional bicycle chain puller, has the more succinct and architectural feature of innovation.
Description
Technical field
This utility model relates to a kind of bicycle chain puller, and particularly relating to one, can to improve bicycle chain puller accurate
The clutch unit of degree.
Background technology
Traditional bicycle chain puller, as described in TaiWan, China M481882 new patent, mainly by one
Pedestal, a linkage and a chain guide for use are constituted, and aforementioned pedestal is used to be fixed on the vehicle frame of bicycle,
Linkage is connected on pedestal and swings for driving chain guide for use opposite base to produce, and the pendulum of chain guide for use
Dynamic axis direction intersects with the direct of travel of bicycle, and then bicycle chain can be directed to the different number of teeth
On sprocket wheel, reach the effect of speed change, and provide suitable tension force to guarantee to operate smoothly for chain.
In order to provide chain suitable tension force, chain guide for use to be reduced is because poor generation of pavement conditions need not
The swing wanted, bicycle chain puller is provided with resistance applying mechanism to avoid chain operation to have some setbacks or asking of coming off
Topic.Wherein, it is additionally provided with in resistance applying mechanism and is allow only one-way a clutch unit of rotation to control chain guide for use
Swing position.One-way clutch that the most aforementioned M481882 new patent is used 70 is interior idle type of taking turns
Roll clutch, its degree of accuracy is to be kept the quantity of component 70d to determine by layout, but spacing member
The limited amount of 70d, in the size of roller 70c, therefore cannot improve degree of accuracy, the most still have the sky of improvement
Between.
Summary of the invention
For the problems referred to above, main purpose of the present utility model is to provide the clutch list of a kind of bicycle chain puller
Unit, its simple for structure and innovation, and there is higher degree of accuracy.
For reaching above-mentioned purpose, the clutch unit of a kind of bicycle chain puller provided by the utility model, its feature
Being to include: a body, its end face is provided with a storage tank and is articulated in a rotating shaft, makes described rotating shaft protrude out institute
State the bottom of storage tank；One positioning component, have a ratchet be articulated in described storage tank and Tong Bu with described rotating shaft turn
Dynamic, at least one detent is adjacent to described ratchet can be relatively close or away from described ratchet, and at least one
Individual elastic component, is used for applying the elastic force towards described ratchet to each described detent；One enclosing cover, covers at institute
State body；One pressure-applying unit, is located between described body and described enclosing cover, to apply resistance to described ratchet；Its
In, described ratchet is provided with the ring-type a plurality of ratchets arranged at equal intervals, each described detent be provided with an engaging tooth with
Be engaged in each described ratchet one of them.
Using technique scheme, this utility model in contrast to the structure of traditional bicycle chain puller, and this practicality is new
The clutch unit of the bicycle chain puller of type has the more succinct and architectural feature of innovation.
For reaching above-mentioned purpose, this utility model additionally provides another technical scheme: a kind of bicycle chain puller from
Close unit, it is characterised in that including: a body, its end face is provided with a storage tank and is articulated in a rotating shaft, makes institute
State rotating shaft and protrude out the bottom of described storage tank；One positioning component, have a ratchet be articulated in described storage tank and with
Described rotating shaft synchronous axial system, a plurality of detent are adjacent to described ratchet can be relatively close or away from described spine
Wheel, and a plurality of elastic component, be used for applying the elastic force towards described ratchet to each described detent；Outside one
Lid, covers at described body；One pressure-applying unit, is located between described body and described enclosing cover, with to described ratchet
Apply resistance；Wherein, described ratchet is provided with the ring-type a plurality of ratchets arranged at equal intervals, and each described detent sets
Have an engaging tooth be engaged in each described ratchet one of them, the quantity of each described ratchet is X, and each described spine
Tooth is 360/X degree with the angle at described ratchet center, and the quantity of each described detent is Y, adjacent two
The engaging tooth of detent is substantially respectively { 360/X*N ± (360/X)/Y} with the angle at described ratchet center
Degree, wherein X is the positive integer more than 2, and Y is the positive integer more than or equal to 2, and N is equal to 1,2 ... the most whole
Number.Thus, the engaging tooth of one of them detent can be meshed with a ratchet of ratchet, when ratchet often rotates
(360/X) another ratchet of engaging tooth and ratchet that/Y degree just has another one detent is meshed, namely
The rotation degree of accuracy allowing rotating shaft brings up to (360/X)/Y degree, and will not additionally increase the quantity of component.
In the above the technical solution of the utility model, described body is hollow tube-shape.
Each described ratchet is arranged at intervals at the periphery of described ratchet, and described positioning component also has a retainer locking
In described body and be adjacent to described ratchet, described retainer has at least one accommodating hole or a plurality of accommodating hole, institute
State at least one accommodating hole described in being arranged at of at least one detent energy sliding, or each described detent is energy respectively
Sliding be arranged at each described accommodating hole, described at least one elastic component be located at described at least one accommodating hole, or each described
Elastic component is respectively arranged on each described accommodating hole.
Described positioning component also has a stator and is locked in described retainer and covers each described accommodating hole, each described
Elastic component is resisted against between described detent and described retainer with its two ends.
The ratchet of described ratchet is made up of with a upright stopping surface an inclined plane.
Described pressure-applying unit has a pair shim pack, pair of plate-shaped shell fragment to be located at described rotating shaft, Yi Jiyi with a set of ring set
Adjust a bolt lock screw together in described rotating shaft end face；Wherein, described shim pack at least compresses described with a surface
Ratchet, described tabular shell fragment is resisted against the end face of described pad and the bottom surface of the described collar, described adjustment with its two ends
The screwing togather the degree of depth and can control the described collar and produce movement up or down of bolt.
Also having a switch module, include a support and a control piece, wherein said support is positioned described enclosing cover
And between described positioning component, described control piece can be located between described support and described positioning component slidably, and
And protrude out spaced a plurality of block can be closer or far from the path of motion of each described detent.
Described support offers a groove, and described control piece is made up of a body of rod and a plate body, and the described body of rod passes institute
Stating groove and described enclosing cover, each described block is protruded out by described plate body and is formed.
The described body of rod highlights one end connection one of described enclosing cover and stirs key.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of this utility model preferred embodiment bicycle chain puller clutch unit；
Fig. 2 is the exploded view of this utility model preferred embodiment bicycle chain puller clutch unit；
Fig. 3 is according to the sectional view of 3-3 line in Fig. 1；
Fig. 4 is the sectional top view of this utility model preferred embodiment ratchet and location ratchet；
Fig. 5 is the decomposing schematic representation of this utility model preferred embodiment switch element and location ratchet.
Detailed description of the invention
Now lift following example and combine accompanying drawing structure of the present utility model and effect are described in detail.
As shown in Figure 1 to Figure 3, a kind of bicycle chain puller provided by this utility model preferred embodiment from
Closing unit 1, be arranged between a chain guide for use 2 and a linkage (not shown), clutch unit 1 includes one
Body 10, one positioning component 20, pressure-applying unit 30 and an enclosing cover 40 cover at body 10, will position group
Part 20 and pressure-applying unit 30 are closed in the inner space of body 10 and enclosing cover 40.
Body 10 is in hollow tube-shape and is relatively distant from the side of chain guide for use 2 and is provided with a storage tank 11, makes chain lead
The rotating shaft 2a of part 2 can run through body 10 and protrude out the bottom center of storage tank 11.Therefore, body 10 is
Can mutually rotate is articulated on chain guide for use 2.Additionally, follow-up explanation highlights storage tank 11 with rotating shaft 2a
Projected direction is carried out as top.
Positioning component 20 has a ratchet 21 and is articulated in storage tank 11 centered by rotating shaft 2a, and with rotating shaft 2a
Synchronous axial system, and the periphery of ratchet 21 is provided with the ring-type some ratchet 21a arranged at equal intervals；One retainer 22
Both sides are locked in body 10 and are adjacent to the periphery of ratchet 21；At least one detent 24 is (at the present embodiment
It is four) can at least one accommodating hole 23 being arranged at retainer 22 of linear sliding (the most also be four
Individual) in the middle of, and one end of the relatively close ratchet of each detent 24 21 be provided with engaging tooth 24a for ratchet 21
Ratchet 21a be meshed；One stator 25 is locked in and covers all accommodating holes 23 above retainer 22；And
At least one elastic component 26, is compression spring and quantity is four at the present embodiment, and it is fixed to be resisted against with its two ends respectively
Between position ratchet 24 and retainer 22, give detent 24 with the elastic force applied towards ratchet 21.Additionally,
Each ratchet 21a is collectively formed with a upright stopping surface by an inclined plane, makes ratchet 21 by detent 24
It is engaged under the effect of ratchet 21a, can only one-directional rotation.It addition, be worth supplementary notes, detent 24,
The quantity of accommodating hole 23 and elastic component 26 the most only needs one, just can realize the holding function of bicycle chain puller, and
It is not necessarily intended to a plurality of just can reach.
As shown in Figure 4, in the present embodiment, the periphery of ratchet 21 is provided with 24 ratchet 21a, the most each ratchet
21a is 15 degree with the angle theta at ratchet 21 center.In order to reach to improve the purpose of degree of accuracy, detent 24,
The quantity of accommodating hole 23 and elastic component 26 then needs to be provided with a plurality of, and the present embodiment is by two adjacent detent 24
Engaging tooth 24a and the angle theta 1 at ratchet 21 center (i.e. rotating shaft 2a center), θ 2 and θ 3 be respectively set to θ 1
=θ 2=θ 3=33.75 degree (i.e. 360/24*2+ (360/24)/4, wherein N=2) equiangularly spaced arrangement.By aforementioned
Detent Position Design is set, the rotation precision of positioning component 20 can be promoted to from original 15 degree
3.75 degree, namely improve 4 times.
In other words, it is assumed that the end face of ratchet 21 is provided with X ratchet 21a, there is Y detent 24
In the case of (wherein X is the positive integer more than 2, and Y is the positive integer more than or equal to 2), if detent 24
Equiangularly spaced arrangement, the then degree of accuracy that positioning component 20 rotates is used to be only △=360/X degree；If detent
24 use the equiangularly spaced arrangement of above-mentioned formula, i.e. two adjacent detent 24 to set with the angle at ratchet 21 center
Spend plus (△/Y) for △ degree * N, then the rotation precision of positioning component 20 will be promoted to △/Y degree, it is possible to obtain
It is substantially improved！
In details of the words, detent can't be meshed with the ratchet of ratchet simultaneously, in the present embodiment, respectively positions
Ratchet 24 is meshed with ratchet 21 in turn, so only one of which positions engaging tooth 24a meeting and the spine of ratchet 24 every time
One ratchet 21a of wheel 21 is meshed, and when ratchet rotates (360/X)/Y degree again, just has another one location spine
The engaging tooth 24a of pawl 24 is meshed with another ratchet 21a of ratchet 21, namely allow rotating shaft 2a rotation essence
Exactness brings up to (360/X)/Y degree really.If desired, those skilled in the art are likely to allow θ 1, θ 2, θ 3 make
Slightly adjust, make θ 1 ≠ θ, 2 ≠ θ 3, so will obtain different degree of accuracy.
Referring again to Fig. 1 and Fig. 2, pressure-applying unit 30 is provided with two shim pack 31 clamping ratchets 21, pair of plate-shaped bullet
Sheet 32 and a collar 33 are sheathed on rotating shaft 2a simultaneously, and an adjustment bolt 34 is locked on the spiral shell of rotating shaft 2a end face
Hole 2b.Wherein, tabular shell fragment 32 is resisted against the end face of shim pack 31 and the bottom surface of the collar 33 with its two ends, makes
User can make the collar 33 produce movement up or down by rotating adjustment the screwing togather the degree of depth of bolt 34, and then
Change tabular shell fragment 32 and put on the downforce of pad 31, put on rotating shaft 2a to reach to adjust positioning component 20
Resistance with chain guide for use 2.
Thus, it is provided in through calculating the equiangularly spaced arrangement carried out, Ke Yi due to detent 24
The rotation degree of accuracy of chain guide for use 2 is improved easily under identical the number of components.Additionally, the ratchet of ratchet can also set
Put the periphery at ratchet, and detent still can carry out equiangularly spaced arrangement to improve degree of accuracy.
To be remarked additionally, as shown in Fig. 2, Fig. 4, Fig. 5, clutch unit 1 is additionally provided with a switch module 50,
Including support 51 and a control piece 52, its medium-height trestle 51 is positioned between enclosing cover 40 and stator 25, and
Offering groove 51a, control piece 52 has that a plate body 53 is integrally formed with a body of rod 54 to be constituted, and plate body 52 is can
It is located at slidably between support 51 and stator 25, and protrudes out downwards four spaced blocks 55 (such as Fig. 5
Shown in)；The body of rod 54 be upward through groove 51a be positioned at enclosing cover 40 opening 41, make one end of the body of rod 54 to connect
Connect one and stir key 60.Therefore, user can utilize hand promotion to stir key 60 and make control piece 52 along groove
51a produces displacement, and when control piece 52 is positioned at one end of groove 51a, block 55 is by not moving at detent 24
Make on path, make each detent 24 can be freely movable and normally play its function (as shown in Figure 4), but when control
When product 52 is positioned at the other end of groove 51a, block 55 will be located in the path of motion of detent 24 and stop each fixed
Position ratchet 24 is allowed to be limited in accommodating hole 23, and now chain guide for use 2 can produce two-way with opposing body 10
Rotate.In addition, it is necessary to supplementary notes, the quantity of block 55 can adjust with the quantity of detent 24,
Such as, when the quantity of detent 24 is a period of time, and the quantity of block 55 is only required to be one, it is possible to realize switching dynamic
Make effect of mode.
In sum, it is known that this utility model and be embodied as form and be not limited to above-mentioned illustration.
Claims (10)
1. the clutch unit of a bicycle chain puller, it is characterised in that include:
One body, its end face is provided with a storage tank and is articulated in a rotating shaft, makes described rotating shaft protrude out described storage tank
Bottom；
One positioning component, have a ratchet be articulated in described storage tank and with described rotating shaft synchronous axial system, at least one is fixed
Position ratchet is adjacent to described ratchet can be relatively close or away from described ratchet, and at least one elastic component, be used for
Each described detent applies the elastic force towards described ratchet；
One enclosing cover, covers at described body；
One pressure-applying unit, is located between described body and described enclosing cover, to apply resistance to described ratchet；
Wherein, described ratchet is provided with the ring-type a plurality of ratchets arranged at equal intervals, and each described detent is provided with an engagement
Tooth be engaged in each described ratchet one of them.
2. the clutch unit of a bicycle chain puller, it is characterised in that include:
One body, its end face is provided with a storage tank and is articulated in a rotating shaft, makes described rotating shaft protrude out described storage tank
Bottom；
One positioning component, have a ratchet be articulated in described storage tank and with described rotating shaft synchronous axial system, a plurality of location
Ratchet is adjacent to described ratchet can be relatively close or away from described ratchet, and a plurality of elastic component, is used for each institute
State detent and apply the elastic force towards described ratchet；
One enclosing cover, covers at described body；
One pressure-applying unit, is located between described body and described enclosing cover, to apply resistance to described ratchet；
Wherein, described ratchet is provided with the ring-type a plurality of ratchets arranged at equal intervals, and each described detent is provided with an engagement
Tooth be engaged in each described ratchet one of them, the quantity of each described ratchet is X, and each described ratchet and described spine
The angle at wheel center is 360/X degree, and the quantity of each described detent is Y, nibbling of two adjacent detent
Close the angle at tooth and described ratchet center and be substantially respectively that { 360/X*N ± (360/X)/Y} degree, wherein X is for being more than
The positive integer of 2, Y is the positive integer more than or equal to 2, and N is equal to 1,2 ... positive integer.
3. the clutch unit of as claimed in claim 1 or 2 bicycle chain puller, it is characterised in that: described body in
Empty tube shape.
4. the clutch unit of bicycle chain puller as claimed in claim 1 or 2, it is characterised in that: between each described ratchet
Every being arranged at the periphery of described ratchet, described positioning component also has a retainer and is locked in described body and is adjacent to
Described ratchet, described retainer has at least one accommodating hole or a plurality of accommodating hole, and described at least one detent can be slided
Move be arranged at described at least one accommodating hole, or each described detent be respectively can sliding be arranged at each described accommodating
Hole, described at least one elastic component be located at described at least one accommodating hole, or each described elastic component is respectively arranged on each described accommodating
Hole.
5. the clutch unit of bicycle chain puller as claimed in claim 4, it is characterised in that: described positioning component also has
Having a stator be locked in described retainer and cover each described accommodating hole, each described elastic component is resisted against institute with its two ends
State between detent and described retainer.
6. the clutch unit of as claimed in claim 4 bicycle chain puller, it is characterised in that: the ratchet of described ratchet by
One inclined plane is constituted with a upright stopping surface.
7. the clutch unit of bicycle chain puller as claimed in claim 1 or 2, it is characterised in that: described pressure-applying unit
There are a pair shim pack, pair of plate-shaped shell fragment to be located at described rotating shaft with a set of ring set, and one adjusts bolt lock together in described
One screw of rotating shaft end face；Wherein, described shim pack at least compresses described ratchet with a surface, described tabular shell fragment with
Its two ends are resisted against the end face of described pad and the bottom surface of the described collar, the screwing togather the degree of depth and can control of described adjustment bolt
The described collar produces movement up or down.
8. the clutch unit of bicycle chain puller as claimed in claim 2, it is characterised in that: also there is a switch module,
Including a support and a control piece, wherein said support is positioned between described enclosing cover and described positioning component, described
Control piece can be located between described support and described positioning component slidably, and has protruded out spaced a plurality of gear
Block can be closer or far from the path of motion of each described detent.
9. the clutch unit of bicycle chain puller as claimed in claim 8, it is characterised in that: described support offers one
Groove, described control piece is made up of a body of rod and a plate body, and the described body of rod is through described groove and described enclosing cover, each described
Block is protruded out by described plate body and is formed.
10. the clutch unit of bicycle chain puller as claimed in claim 9, it is characterised in that: the described body of rod highlights institute
Key is stirred in one end connection one stating enclosing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620484043.6U CN205769960U (en) | 2016-05-25 | 2016-05-25 | The clutch unit of bicycle chain puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620484043.6U CN205769960U (en) | 2016-05-25 | 2016-05-25 | The clutch unit of bicycle chain puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205769960U true CN205769960U (en) | 2016-12-07 |
Family
ID=58113711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620484043.6U Active CN205769960U (en) | 2016-05-25 | 2016-05-25 | The clutch unit of bicycle chain puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205769960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107434006A (en) * | 2016-05-25 | 2017-12-05 | 台湾微转股份有限公司 | The clutch unit of bicycle chain puller |
| CN108502091A (en) * | 2017-02-24 | 2018-09-07 | 株式会社岛野 | Bicycle derailleur |
-
2016
- 2016-05-25 CN CN201620484043.6U patent/CN205769960U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107434006A (en) * | 2016-05-25 | 2017-12-05 | 台湾微转股份有限公司 | The clutch unit of bicycle chain puller |
| CN107434006B (en) * | 2016-05-25 | 2023-08-04 | 台湾微转股份有限公司 | Clutch unit of bicycle derailleur |
| CN108502091A (en) * | 2017-02-24 | 2018-09-07 | 株式会社岛野 | Bicycle derailleur |
| CN108502091B (en) * | 2017-02-24 | 2021-04-06 | 株式会社岛野 | Bicycle rear chain shifter |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |