CN207943138U - A kind of bicycle finger pull type speed changer - Google Patents
A kind of bicycle finger pull type speed changer Download PDFInfo
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- CN207943138U CN207943138U CN201820352073.0U CN201820352073U CN207943138U CN 207943138 U CN207943138 U CN 207943138U CN 201820352073 U CN201820352073 U CN 201820352073U CN 207943138 U CN207943138 U CN 207943138U
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- retaining pawl
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- pawl
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Abstract
The utility model is a kind of bicycle finger pull type speed changer, belongs to bicycle accessories field, as follows using technical solution for cumbersome, the inconvenient for use problem of existing finger pull type speed changer：A kind of bicycle finger pull type speed changer, including the main shaft that plays a supportive role, and be set on main shaft and around main axis：Line wheel for fixing control line, with line wheel rotate synchronously and arrange up and down move back washer and into washer, and can self-return control spanner；The control spanner by can self-return retaining pawl and into pawl gearing move back washer and into washer, when the control spanner rotates counterclockwise or clockwise, move back washer, rotate in same direction into washer and line wheel with spanner is controlled, complete into shelves or move back shelves.The bicycle finger pull type speed changer of the utility model has the advantages that simple in structure, simple and efficient to handle.
Description
Technical field
The utility model belongs to bicycle accessories field, more particularly to a kind of bicycle finger pull type speed changer.
Background technology
Bicycle shift system adjusts speed change part (such as control line) to complete speed change, basic mistake usually using variable-speed controller
Cheng Wei：Variable-speed controller drives control line to adjust the gear positions of front and back derailleur, guides chain to be moved to corresponding fluted disc, in turn
Front and back wheel rotating ratio is adjusted, speed changing effect is reached.The basic operation of variable-speed controller is：It pulls or puts when upshift or downshift operation
Loose control line fixes its position after so that control line is adjusted to appropriate length.
Existing variable-speed controller usually using finger pull type speed changer, have a structure which and its matching relationship substantially：
Line wheel for fixing and guiding shift cable, is resetted by fixed spring, the gear teeth that line wheel is retreated with cooperation gear
Piece is fixedly connected, wherein gear teeth on piece is equipped with fixed gear piece and positioning gear piece, exists with the retaining pawl limit that grade spanner interlocks is moved back
On fixed gear piece, is limited into pawl in positioning tooth on piece with what is interlocked into shelves spanner, move back grade spanner and drive retaining pawl along clockwise
Sliding is completed to move back shelves successively between the gear piece of fixed gear piece in direction, is driven into shelves spanner into pawl in the counterclockwise direction in fixed tooth
Sliding is completed into shelves successively between the gear piece of piece.When moving back a grade spanner and moving back grade, only retaining pawl is clamped with fixed gear piece, into shelves spanner into
When shelves, into pawl and positioning gear piece clamping, retaining pawl is clamped with fixed gear piece.
The main problem of above-mentioned finger pull type speed changer is：By stirring into shelves spanner or moving back a grade spanner completion speed change, although
Two rotating spanners rotation direction on the contrary, but study use when always because obscure two spanners function and operation error,
Therefore the time for adapting to operation is long, inconvenient to use.
Utility model content
Cumbersome, inconvenient for use for existing finger pull type speed changer, the utility model provides a kind of easy to operate, use
Convenient bicycle finger pull type speed changer.
The utility model is as follows using technical solution：A kind of bicycle finger pull type speed changer, including the master that plays a supportive role
Axis, and be set on main shaft and around main axis：Line wheel for fixing control line, with line wheel synchronous rotation and upper and lower cloth
Set move back washer and into washer, and can self-return control spanner；It is described control spanner by can self-return retaining
Pawl and move back washer and into washer into pawl gearing, when the control spanner rotates counterclockwise or clockwise, move back washer, into washer and
Line wheel rotates in same direction with control spanner, completes into shelves or moves back shelves.
The bicycle finger pull type speed changer of the utility model is only turned by manipulating a control spanner counterclockwise or clockwise
It is dynamic to interlock other component rotation to realize into shelves or move back shelves, have the characteristics that simple in structure, cooperation stabilization can between each parts
It leans on, while being easy to adjust, have the advantages that simple and efficient to handle.
Further, the retaining pawl include can self-return and in upper and lower position upper retaining pawl and lower retaining pawl,
The upper retaining pawl can be limited by lower retaining pawl, described to move back washer and multiple move back grade gear piece and into shelves tooth into being respectively equipped on washer
Piece, wherein upper retaining pawl is interlocked with grade gear piece is moved back, and lower retaining pawl is interlocked with into shelves gear piece；When controlling the non-stress of spanner, upper retaining
Pawl limit in the root for moving back grade gear piece, lower retaining pawl with into pawl limit into outside shelves gear piece；Control spanner rotates counterclockwise
When, it upper retaining pawl and is slided successively between moving back grade gear piece and between shelves gear piece, is completed into shelves respectively into pawl；Control spanner
When rotating clockwise, upper retaining pawl and lower retaining pawl slide between moving back grade gear piece and between shelves gear piece successively respectively, complete
Move back shelves.This setting can ensure into washer and move back washer in rotation process and be limited always, and ensure into shelves or to move back every time
A gear piece is only turned over when shelves, makes bicycle finger pull type speed changer that there is preferable stability and controllability；And upper retaining pawl and
Lower retaining pawl can self-return could continuously manipulate into shelves and moving back shelves.
Further, the bicycle finger pull type speed changer further includes limiting the branch on main shaft and playing fixed supporting role
Frame, the holder include be located at line wheel above top-support, and positioned at into washer and control spanner between main support, top
The first fulcrum is equipped between holder and main support, the upper retaining pawl and lower retaining pawl are set on the first fulcrum, lead to respectively
It crosses the first torsional spring being set on the first fulcrum and the second torsional spring realizes return.Upper retaining pawl and lower retaining pawl can be around the first fulcrums
Return after rotation, it is ensured that can continuously transfer the files；Top-support, main support and the first fulcrum by line wheel, move back washer and be trapped among into washer
Wherein, it can be ensured that the stability of structure.
Further, it is described control spanner and main support between limit one can self-return supporting rack, support frame as described above
It is equipped with the second fulcrum, it is described to be set on the second fulcrum and rotated around the second fulcrum into pawl, and by being set in second
Third torsional spring on fulcrum realizes return.The self-return into pawl can be achieved in this setting, is become with auxiliary bike finger pull type
Fast device realization is continuously transferred the files.
Further, the junction of support frame as described above and control spanner is equipped with reset tension spring and limit protrusion, the reset
Tension spring is for assisting control spanner to reset, and the limit protrusion is for limiting control spanner；The control spanner is equipped with and is placed in
The pushing part of main shaft both sides and handle portion for stress, the reset tension spring are limited between pushing part and supporting rack, into
When shelves, control spanner is limited raised limit, so that supporting rack rotate and follows supporting rack return, and when moving back grade, supporting rack is motionless, controls
Spanner processed is detached from the limit of limit protrusion by swing, and pushing part is made to push lower retaining pawl, and the return under reset tension spring effect.
Only limit protrusion limits each other with control spanner when into shelves, when moving back grade only reset tension spring to control spanner limit, this
One structure makes reset tension spring and limit protrusion unidirectionally be limited to control spanner respectively, is conducive to only real by operation and control spanner
Now into shelves and moving back shelves.
Further, the lower retaining pawl is provided with the opening for limiting upper retaining pawl, and when into shelves, lower retaining pawl is motionless,
Upper retaining pawl is swung out in the case where moving back washer and stirring, and is detached from the limit of opening, and under the effect of the first torsional spring move back grade gear piece it
Between slide successively；When moving back grade, control spanner pushes lower retaining pawl, and upper retaining pawl limit is in opening and by lower retaining pawl band at this time
It is dynamic, so that retaining pawl and lower retaining pawl is slided successively between moving back grade gear piece and between shelves gear piece respectively.Due into shelves or moving back
When shelves, upper retaining pawl slides under the effect of the first torsional spring between moving back grade gear piece successively, and lower retaining pawl is only moving back a grade time shift
Dynamic, the two is not mobile simultaneously, it is therefore desirable to which lower retaining pawl unidirectionally limits upper retaining pawl, the opening energy opened up on lower retaining pawl
Enough meet this requirement.
Further, a line wheel ring spring is limited between line wheel and top-support, is used for auxiliary line wheel return；One supporting rack
Ring spring is limited between supporting rack and main support, is used for auxiliary support frame return.Line wheel ring spring and supporting rack ring spring provide circumferential
Torsion, can self-return after so that line wheel and supporting rack is rotated under external force；And line wheel ring spring and supporting rack ring spring have
Relatively stable structure is simultaneously capable of providing the relatively stable torsion in direction, it is ensured that integrally-built stability.
Further, the defining flange that is additionally provided on the main support on main support lower surface and it is located at main support
The resistance shelves flange of upper surface, the defining flange is used for location supporting rack, for preventing the excessive return of supporting rack, the resistance shelves convex
Edge is for limiting lower retaining pawl, for preventing the lower excessive return of retaining pawl.Defining flange is for preventing supporting rack mistake under inertia
Return is spent, and makes supporting rack returning quickly to original state；Resistance shelves flange is for preventing lower retaining pawl from being got rid of under effect of inertia
Go out, and makes lower retaining pawl returning quickly to original state.
The control method of above-mentioned bicycle finger pull type speed changer, including into shelves step and move back a grade step：
Include into shelves step：
A. operation and control spanner rotates counterclockwise, make to be stuck in after into pawl rotation one be located at on washer into shelves gear piece root
Portion makes to rotate synchronously one at a distance from shelves gear piece, at this point, moving back washer with into washer is relatively-stationary into washer and control spanner
It is rotated simultaneously with line wheel, the control line limited in line wheel is moved with line-wheel；
B. it is located at grade gear piece that moves back that moves back on washer and stirs retaining pawl, makes retaining pawl from the root of grade gear piece is moved back to top
Sliding, upper retaining pawl slide into the adjacent root for moving back grade gear piece under the action of the first torsional spring；
C. control spanner is unclamped, spanner self-return is controlled, is repositioned into pawl into washer under the action of third torsional spring
Outside is completed once into shelves；
Moving back a grade step includes：
A. operation and control spanner rotates clockwise, blocked after so that lower retaining pawl is rotated one be located at on washer into shelves tooth
Piece pushes retaining pawl to rotate in rotation process, retaining pawl is made to be slid into from the root for moving back grade gear piece with retaining pawl at present
Top moves back washer and rotates clockwise half of distance for moving back grade gear piece at this time, with move back washer it is relatively-stationary into washer and line wheel with
With rotation, the control line limited in line wheel follows movement；
B. control spanner is unclamped, spanner self-return is controlled, the limit of lower retaining pawl is released from, and lower retaining pawl is turned round second
It is repositioned into the outside of shelves gear piece under spring effect, lower retaining pawl is released from the limit of upper retaining pawl simultaneously, and upper retaining pawl is the
From the top slide for moving back grade gear piece to the adjacent root for moving back grade gear piece under the effect of one torsional spring, washer is moved back at this time and is rotated clockwise half
The distance of grade gear piece is moved back, completion once moves back shelves.
The utility model further relates to the control method of bicycle finger pull type speed changer, with existing control method difference lies in,
It only rotates counterclockwise or rotates clockwise by stirring control spanner, and each parts is coordinated to can be realized into shelves or move back shelves, because
And the feature that this control method controllability is strong, adjustment time is short.
The angle of rotation of line wheel is more than 0 ° and is less than 180 °.For prevent line wheel inordinate rotation can not self-return, line wheel cannot
Rotate stabilization that is excessive, while also can guarantee structure.
The utility model has the advantage that：Compared with prior art, the bicycle finger pull type speed change of the utility model
Device, which is only rotated counterclockwise or clockwise by one control spanner of manipulation, interlocks other component rotation to realize into shelves or move back shelves having
Have the characteristics that simple in structure, coordinate reliable and stable between each parts, while being easy to adjust have simple and efficient to handle excellent
Point；And controllability is strong, adjustment time is short, simple operation.
Description of the drawings
Fig. 1 is the overall structure diagram of bicycle finger pull type speed changer；
Fig. 2 is bicycle finger pull type speed changer configuration schematic diagram；
Fig. 3 is bicycle finger pull type speed changer bottom substance schematic diagram；
In figure：1- main shafts；2- line wheels；21- control lines；22- line wheel ring springs；3- moves back washer；31- moves back a grade gear piece；4- is into shelves
Piece；41- is into shelves gear piece；5- controls spanner；The pushing parts 51-；52- handle portions；The upper retaining pawls of 6-；Retaining pawl under 7-；71- is open；
8- is into pawl；9- top-supports；10- main supports；The first fulcrums of 101-；The first torsional springs of 102-；The second torsional springs of 103-；104- is limited
Flange；105- hinders shelves flange；11- supporting racks；The second fulcrums of 111-；112- third torsional springs；113- supporting rack ring springs；12- resets
Tension spring；13- limit protrusions.
Specific implementation mode
With reference to the attached drawing of the utility model, the technical solution of the utility model embodiment is explained and illustrated,
But following embodiments are only the preferred embodiment of the utility model, and not all.Based on the implementation example in the implementation mode, this field
Technical staff's obtained other embodiment without making creative work, belongs to the protection model of the utility model
It encloses.
The bicycle finger pull type speed changer of the present embodiment, as shown in Figure 1 to Figure 3, including the main shaft 1 that plays a supportive role, with
And it is set on main shaft 1 and rotates around main shaft 1：Line wheel 2 for fixing control line 21 rotates synchronously and upper and lower with line wheel 2
Arrangement move back washer 3 and into washer 4, and can self-return control spanner 5；The control spanner 5 is by can self-return
Retaining pawl and move back washer 3 into the gearing of pawl 8 and when the control spanner 5 rotates counterclockwise or clockwise move back shelves into washer 4
Piece 3 rotates in same direction into washer 4 and line wheel 2 with control spanner 5, completes into shelves or moves back shelves.
The bicycle finger pull type speed changer of the utility model is only turned by manipulating a control spanner 5 counterclockwise or clockwise
It is dynamic to interlock other component rotation to realize into shelves or move back shelves, have the characteristics that simple in structure, cooperation stabilization can between each parts
It leans on, while being easy to adjust, have the advantages that simple and efficient to handle.
The retaining pawl include can self-return and the upper retaining pawl 6 in upper and lower position and lower retaining pawl 7, it is described it is upper only
Moving back pawl 6 can be limited by lower retaining pawl 7, described to move back washer 3 and multiple move back grade gear piece 31 and into shelves gear piece into being respectively equipped on washer 4
41, wherein upper retaining pawl 6 is interlocked with grade gear piece 31 is moved back, and lower retaining pawl 7 is interlocked with into shelves gear piece 41；Control 5 non-stress of spanner
When, the limit of upper retaining pawl 6 in the root for moving back grade gear piece 31, lower retaining pawl 7 with into the limit of pawl 8 into outside shelves gear piece 41；Control
When spanner 5 processed rotates counterclockwise, upper retaining pawl 6 and into pawl 8 respectively between moving back grade gear piece 31 and between shelves gear piece 41 according to
Secondary sliding is completed into shelves；Control spanner 5 is when rotating clockwise, upper retaining pawl 6 and lower retaining pawl 7 respectively move back grade gear piece 31 it
Between and slide successively between shelves gear piece 41, shelves are moved back in completion.This setting can ensure into washer 4 and move back washer 3 and rotate
It is limited always in journey, and ensures only to turn over a gear piece into shelves or when moving back grade every time, bicycle finger pull type speed changer is made to have
Preferable stability and controllability；And upper retaining pawl 6 and lower retaining pawl 7 can self-return could continuously manipulate into shelves and move back shelves.
The bicycle finger pull type speed changer further includes limiting the holder on main shaft 1 and playing fixed supporting role, the branch
Frame includes being located at the top-support 9 of the top of line wheel 2, and positioned at into the main support 10 between washer 4 and control spanner 5, top
The first fulcrum 101 is equipped between holder 9 and main support 10, the upper retaining pawl 6 and lower retaining pawl 7 are set in the first fulcrum
On 101, return is realized by the first torsional spring 102 being set on the first fulcrum 101 and the second torsional spring 103 respectively.Upper retaining pawl 6
Return after being rotated around the first fulcrum 101 with lower retaining pawl 7, it is ensured that can continuously transfer the files；Top-support 9, main support 10 and first
Fulcrum 101 by line wheel 2, move back washer 3 and be trapped among wherein into washer 4, it can be ensured that the stability of structure.
Between the control spanner 5 and main support 10 limit one can self-return supporting rack 11, on support frame as described above 11
It is described to be set on the second fulcrum 111 and rotated around the second fulcrum 111 into pawl 8 equipped with the second fulcrum 111, and pass through set
The third torsional spring 112 being located on the second fulcrum 111 realizes return.The self-return into pawl 8 can be achieved in this setting, with auxiliary
The realization of bicycle finger pull type speed changer is continuously transferred the files.
The junction of support frame as described above 11 and control spanner 5 is equipped with reset tension spring 12 and limit protrusion 13, and the reset is drawn
Spring 12 is for assisting control spanner 5 to reset, and the limit protrusion 13 is for limiting control spanner 5；The control spanner 5, which is equipped with, to be divided
It is placed in the pushing part 51 of 1 both sides of main shaft and the handle portion 52 for stress, the reset tension spring 12 is limited in 51 He of pushing part
Between supporting rack 11, when into shelves, control spanner 5 is limited protrusion 13 and limits, and so that supporting rack 11 is rotated and supporting rack 11 is followed to return
Position, when moving back grade, supporting rack 11 is motionless, and control spanner 5 is detached from the limit of limit protrusion 13 by swing, under so that pushing part 51 is pushed
Retaining pawl 7, and the return under the effect of reset tension spring 12.Only limit protrusion 13 limits each other with control spanner 5 when into shelves,
Only reset tension spring 12 limits control spanner 5 when moving back grade, this structure makes reset tension spring 12 and limit protrusion 13 right respectively
It controls spanner 5 unidirectionally to limit, is conducive to only realize into shelves by operation and control spanner 5 and move back shelves.
The lower retaining pawl 7 is provided with the opening 71 for limiting upper retaining pawl 6, and when into shelves, lower retaining pawl 7 is motionless, upper to stop
It moves back pawl 6 to swing out in the case where moving back washer 3 and stirring, is detached from the limit of opening 71, and a grade gear piece is being moved back under the effect of the first torsional spring 102
It is slided successively between 31；When moving back grade, control spanner 5 pushes lower retaining pawl 7, and upper retaining pawl 6 limits at opening 71 and quilt at this time
Lower retaining pawl 7 drives, make retaining pawl 6 and lower retaining pawl 7 respectively between moving back grade gear piece 31 and between shelves gear piece 41 successively
Sliding.Since into shelves or when moving back grade, upper retaining pawl 6 slides under the effect of the first torsional spring 102 between moving back grade gear piece 31 successively,
And lower retaining pawl 7 is only moved when moving back grade, the two is not mobile simultaneously, it is therefore desirable to which lower retaining pawl 7 unidirectionally limits upper retaining pawl 6
, the opening 71 opened up on lower retaining pawl 7 disclosure satisfy that this requirement.
Line wheel ring spring 22 is limited between line wheel 2 and top-support 9, for assisting 2 return of line wheel；Supporting rack ring spring 113
It is limited between supporting rack 11 and main support 10, is used for 11 return of auxiliary support frame.Line wheel ring spring 22 and supporting rack ring spring 113 carry
It, can self-return after so that line wheel 2 and supporting rack 11 is rotated under external force for circumferential torsion；And line wheel ring spring 22 and support
Bobbin spring 113 has relatively stable structure and is capable of providing the relatively stable torsion in direction, it is ensured that integrally-built stabilization
Property.
The defining flange 104 that is additionally provided on the main support 10 on 10 lower surface of main support and it is located at main support 10
The resistance shelves flange 105 of upper surface, the defining flange 104 is used for location supporting rack 11, for preventing 11 excessive return of supporting rack,
The resistance shelves flange 105 is for limiting lower retaining pawl 7, for preventing 7 excessive return of lower retaining pawl.Defining flange 104 is for preventing
The only excessive return under inertia of supporting rack 11, and make 11 returning quickly of supporting rack to original state；Resistance shelves flange 105 is for preventing
Lower retaining pawl 7 is thrown out of under effect of inertia, and makes lower 7 returning quickly of retaining pawl to original state.
The control method of above-mentioned bicycle finger pull type speed changer, including into shelves step and move back a grade step：
Include into shelves step：
A. operation and control spanner 5 rotates counterclockwise, make into pawl 8 rotate after be stuck in one be located at on washer 4 into shelves tooth
41 root of piece makes to rotate synchronously one at a distance from shelves gear piece 41, at this point, opposite with into washer 4 into washer 4 and control spanner 5
Fixed to move back washer 3 and line wheel 2 while rotating, the control line 21 limited in line wheel 2 is moved with line-wheel 2；
B. it is located at grade gear piece 31 that moves back moved back on washer 3 and stirs retaining pawl 6, makes retaining pawl 6 from the root for moving back grade gear piece 31
Portion slides into the adjacent root for moving back grade gear piece 31 to top slide, upper retaining pawl 6 under the action of the first torsional spring 102；
C. control spanner 5 is unclamped, 5 self-return of spanner is controlled, is repositioned under the action of third torsional spring 112 into pawl 8
On the outside of into washer, complete once into shelves；
Moving back a grade step includes：
A. operation and control spanner 5 rotates clockwise, blocked after so that lower retaining pawl 7 is rotated one be located at on washer 4 into shelves
Gear piece 41 pushes retaining pawl 6 to rotate in rotation process, makes retaining pawl 6 from the root for moving back grade gear piece 31 with retaining pawl 7 at present
Portion slide into top, move back washer 3 at this time and rotate clockwise half of distance for moving back grade gear piece 31, with move back washer 3 it is relatively-stationary into
Washer 4 and line wheel 2 follow rotation, and the control line 21 limited in line wheel 2 follows movement；
B. control spanner 5 is unclamped, 5 self-return of spanner is controlled, the limit of lower retaining pawl 7 is released from, and lower retaining pawl 7 is the
It being repositioned into the outside of shelves gear piece 41 under the effect of two torsional springs 103, lower retaining pawl 7 is released from the limit of upper retaining pawl 6 simultaneously, on
Retaining pawl 6, from the top slide for moving back grade gear piece 31 to the adjacent root for moving back grade gear piece 31, moves back at this time under the effect of the first torsional spring 102
Washer 3 rotates clockwise half of distance for moving back grade gear piece 31, and completion once moves back shelves.
The angle of rotation of line wheel 2 is more than 0 ° and is less than 180 °.For prevent 2 inordinate rotation of line wheel can not self-return, line wheel 2 is not
Stabilization that is excessive, while also can guarantee structure can be rotated.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, one skilled in the art should be understood that the utility model includes but not limited to attached drawing and specific implementation mode above
Described in content.The modification of any function and structure principle without departing from the utility model is intended to be included in the model of claim
In enclosing.
Claims (8)
1. a kind of bicycle finger pull type speed changer, including the main shaft that plays a supportive role, which is characterized in that further include being set in main shaft
Above and around main axis：Line wheel for fixing control line, rotates synchronously with line wheel and that arranges up and down moves back washer and into shelves
Piece, and can self-return control spanner；It is described control spanner by can self-return retaining pawl and into pawl gearing move back
Washer and into washer when the control spanner rotates counterclockwise or clockwise, moves back washer, same into washer and line wheel and control spanner
To rotation, completes into shelves or move back shelves.
2. bicycle finger pull type speed changer according to claim 1, which is characterized in that the retaining pawl includes returning automatically
Position and the upper retaining pawl in upper and lower position and lower retaining pawl, the upper retaining pawl can be limited by lower retaining pawl, described to move back washer
With multiple move back grade gear piece and into shelves gear piece into being respectively equipped on washer, wherein upper retaining pawl and move back grade gear piece and interlock, lower retaining pawl
It is interlocked with into gear gear piece；When controlling the non-stress of spanner, upper retaining pawl limit in the root for moving back grade gear piece, lower retaining pawl with into pawl
Limit is into outside shelves gear piece；Control spanner is when rotating counterclockwise, upper retaining pawl and into pawl respectively between moving back grade gear piece and
It slides, completes into shelves successively between shelves gear piece；When control spanner rotates clockwise, upper retaining pawl and lower retaining pawl are moving back respectively
It is slided successively between shelves gear piece and between shelves gear piece, shelves are moved back in completion.
3. bicycle finger pull type speed changer according to claim 2, which is characterized in that further include limit on main shaft and rise
The holder of fixed supporting role, the holder include the top-support being located above line wheel, and are located at into washer and control spanner
Between main support, between top-support and main support be equipped with the first fulcrum, the upper retaining pawl and lower retaining pawl are set in
On first fulcrum, return is realized by the first torsional spring being set on the first fulcrum and the second torsional spring respectively.
4. bicycle finger pull type speed changer according to claim 3, which is characterized in that the control spanner and main support it
Between limit one can self-return supporting rack, support frame as described above be equipped with the second fulcrum, it is described to be set in the second fulcrum into pawl
It can rotate above and around the second fulcrum, and the third torsional spring by being set on the second fulcrum realizes return.
5. bicycle finger pull type speed changer according to claim 4, which is characterized in that support frame as described above and control spanner
Junction is equipped with reset tension spring and limit protrusion, and the reset tension spring for assisting control spanner to reset, use by the limit protrusion
Spanner is controlled in limit；The control spanner is equipped with the pushing part for the main shaft both sides that are placed in and the handle portion for stress, institute
It states reset tension spring to be limited between pushing part and supporting rack, when into shelves, control spanner is limited raised limit, and supporting rack is made to rotate
And supporting rack return is followed, when moving back grade, supporting rack is motionless, and control spanner is detached from the limit of limit protrusion by swing, makes promotion
Portion pushes lower retaining pawl, and the return under reset tension spring effect.
6. bicycle finger pull type speed changer according to claim 3, which is characterized in that the lower retaining pawl is provided with for limiting
The opening of retaining pawl on position, when into shelves, lower retaining pawl is motionless, and upper retaining pawl is swung out in the case where moving back washer and stirring, and is detached from opening
Limit, and slided successively between moving back grade gear piece under the effect of the first torsional spring；When moving back grade, control spanner pushes lower retaining pawl,
Upper retaining pawl limit drives in opening and by lower retaining pawl at this time, make retaining pawl and lower retaining pawl respectively move back grade gear piece it
Between and slide successively between shelves gear piece.
7. bicycle finger pull type speed changer according to claim 4, which is characterized in that a line wheel ring spring be limited in line wheel with
Between top-support, it to be used for auxiliary line wheel return；One supporting rack ring spring is limited between supporting rack and main support, for assisting branch
Support return.
8. bicycle finger pull type speed changer according to claim 4, which is characterized in that be additionally provided with and be located on the main support
Defining flange on main support lower surface and the stop flange positioned at main support upper surface, the defining flange is for limiting branch
Support, for preventing the excessive return of supporting rack, the stop flange is for limiting lower retaining pawl, for preventing lower retaining pawl excessive
Return.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820352073.0U CN207943138U (en) | 2018-03-15 | 2018-03-15 | A kind of bicycle finger pull type speed changer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820352073.0U CN207943138U (en) | 2018-03-15 | 2018-03-15 | A kind of bicycle finger pull type speed changer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622307A (en) * | 2018-03-15 | 2018-10-09 | 慈溪市胜轮车业有限公司 | A kind of bicycle finger pull type speed changer and its control method |
| CN114715327A (en) * | 2022-04-07 | 2022-07-08 | 速瑞达自行车零件（佛山）有限公司 | Variable speed operating device and bicycle |
| CN115123444A (en) * | 2022-06-27 | 2022-09-30 | 胡建明 | Bicycle transmission system and method of assembling the same |
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2018
- 2018-03-15 CN CN201820352073.0U patent/CN207943138U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622307A (en) * | 2018-03-15 | 2018-10-09 | 慈溪市胜轮车业有限公司 | A kind of bicycle finger pull type speed changer and its control method |
| CN108622307B (en) * | 2018-03-15 | 2024-04-02 | 宁波日骋车业有限公司 | Finger-shifting type speed variator for bicycle and control method thereof |
| CN114715327A (en) * | 2022-04-07 | 2022-07-08 | 速瑞达自行车零件（佛山）有限公司 | Variable speed operating device and bicycle |
| CN114715327B (en) * | 2022-04-07 | 2024-05-24 | 速瑞达自行车零件（佛山）有限公司 | Speed-changing operating device and bicycle |
| CN115123444A (en) * | 2022-06-27 | 2022-09-30 | 胡建明 | Bicycle transmission system and method of assembling the same |
| CN115123444B (en) * | 2022-06-27 | 2023-09-08 | 胡建明 | Bicycle speed changing system and assembling method thereof |
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