CN101943226B - Inverted input blocking mechanism - Google Patents
Inverted input blocking mechanism Download PDFInfo
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- CN101943226B CN101943226B CN201010220750.1A CN201010220750A CN101943226B CN 101943226 B CN101943226 B CN 101943226B CN 201010220750 A CN201010220750 A CN 201010220750A CN 101943226 B CN101943226 B CN 101943226B
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Abstract
The invention provides an inverted input blocking mechanism which is simply structured, low-cost and fit for miniaturization. The mechanism is provided with fixing siding components (2, 26) having side faces (2a, 26a) contacted with coiled springs, input siding components (4, 22) having side faces (4a, 22a) contacted with the coiled springs and capable of being rotatably mounted on the fixing siding components (2, 26), and output siding rotating parts (8, 30) having side faces (8a, 30a) critically contacted with the coiled springs and capable of being rotatably mounted on the fixing siding components (2, 26), wherein the coiled springs (12, 20) comprise a part pressed into the side faces (4a, 22a) of the input siding components (4, 22), a part jogged with the side faces (8a, 30a) of the output siding rotating parts (8, 30) in the manner of critical contacting, and a part pressed in the side faces (2a, 26a) of the fixing siding components (2, 26).
Description
Technical field
The present invention relates to inverted input blocking mechanism, this device uses on the device such as starter, coiling lowering or hoisting gear of electric bicycle, motor, motor, only have from the transmission of torque of input side input to outlet side, block on the other hand the function of not transmitting to outlet side from the torque of outlet side.
Background technique
Only have the transmission of torque of a direction from input side input to outlet side, block on the other hand inverted input blocking clutch known (for example,, with reference to the patent documentation 1) already of the function of not transmitting to outlet side from the torque of outlet side.And, have from the two-way transmission of torque of input side input to outlet side, block on the other hand also known (for example,, with reference to the patent documentation 2,3) of inverted input blocking clutch of the function of not transmitting to outlet side from the torque of outlet side.
Patent documentation 1: TOHKEMY 2004-324693 communique
Patent documentation 2: TOHKEMY 2003-120715 communique
Patent documentation 3: TOHKEMY 2006-250176 communique
Existing inverted input blocking mechanism complex structure, thereby cost is very high, and there is the problems such as device maximization.
Summary of the invention
The object of this invention is to provide one simple in structure and cheap, and the inverted input blocking mechanism of applicable miniaturization.
In order to reach foregoing invention object, the inverted input blocking mechanism of a scheme of the present invention comprises:
There are the fixed side parts 2,26 of the side face 2a, the 26a that contact with helical spring;
There is the side face 4a, the 22a that contact with helical spring, be rotatably installed in the input side rotary component 4,22 on above-mentioned fixed side parts 2;
Outlet side rotary component 8,30, this outlet side rotary component has and side face 8a, the 30a of helical spring in critical contact state, with 4,22 rotations of above-mentioned input side rotary component freely relative, be rotatably installed on above-mentioned fixed side parts 2,26;
Each side face 2a, 26a with above-mentioned fixed side parts 2,26, input side rotary component 4,22 and outlet side rotary component 8,30; 4a, 22a; 8a, 30a are in the face of the helical spring 12,20 of ground configuration;
Described helical spring 12,20 comprises:
Be pressed into the A portion on side face 4a, the 22a of above-mentioned input side rotary component 4,22;
With the side face of above-mentioned outlet side rotary component 8,30 (8a, 30a under critical contact state, the B portion chimeric with side face 8a, the 30a of above-mentioned outlet side rotary component 8,30;
Be pressed into the C portion on side face 2a, the 26a of above-mentioned fixed side parts 2,26.
The preferred version of inverted input blocking mechanism of the present invention is, in the time setting as follows:
The minimal torque that makes above-mentioned input side rotary component roll tightly direction rotation to above-mentioned helical spring is set as to A portion locking moment of torsion;
Be C portion sliding torque by making above-mentioned helical spring C portion with respect to the torque setting of the side face relative sliding rotation of fixed side parts;
The minimal torque of the direction rotation that above-mentioned outlet side rotary component is rolled tightly to above-mentioned helical spring is set as to B portion locking moment of torsion;
Will be by above-mentioned helical spring rolling tightly, the torque setting that above-mentioned input side rotary component is rotated together with above-mentioned helical spring is that B portion diameter changes moment of torsion; There is following relation:
Locking moment of torsion > C portion of A portion sliding torque;
Locking moment of torsion > C portion of B portion sliding torque;
B portion diameter changes moment of torsion < C portion sliding torque.
The preferred version of inverted input blocking mechanism of the present invention is, above-mentioned fixed side parts 2 have inside diameter, be provided with the side face 2a contacting with above-mentioned helical spring 12 at this inside diameter, taking above-mentioned input side rotary component 4 and outlet side rotary component 8 as axis body, the outer diameter part of this axis body be provided with the side face 4a that contacts with above-mentioned helical spring 12 and with the side face 8a of above-mentioned helical spring 12 in critical contact state.
The preferred version of inverted input blocking mechanism of the present invention is to be provided with the side face 26a contacting with above-mentioned helical spring 20 at the outer diameter part of above-mentioned fixed side parts 26; Be provided with the side face 22a contacting with above-mentioned helical spring 20 at the inside diameter of above-mentioned input side rotary component 22; Be provided with and the side face 30a of above-mentioned helical spring 20 in critical contact state at the inside diameter of above-mentioned outlet side rotary component 30.
The inverted input blocking mechanism of another program of the present invention comprises:
There are a pair of side face 32a contacting with helical spring in inner side, the fixed side parts 32 of 32b;
There is input side rotation transfer part 38a, be rotatably installed in the input shaft 38 on above-mentioned fixed side parts 32;
A pair of input side rotation carrier 46,50, this a pair of input side rotation carrier 46,50 is disposed at the both sides of above-mentioned input side rotation transfer part 38a side by side, has the rotation transfer part 46a, the 50a that coordinate with above-mentioned input side rotation transfer part 38a and is rotatably supported on above-mentioned fixed side parts 32 in the mode of rotating in linkage with above-mentioned input shaft 38;
A pair of input side rotary component 54,56, this a pair of input side rotary component 54,56 rotates and is supported on freely on above-mentioned fixed side parts 32 in the mode linking with the rotation of above-mentioned input side rotation carrier 46,50, and has respectively the side face 54a, the 56a that contact with helical spring;
There is outlet side rotation transfer part 40a and be rotatably installed in the output shaft 40 on above-mentioned fixed side parts 32;
A pair of outlet side rotation carrier 48,52, this a pair of outlet side rotation carrier 48,52 is disposed at the both sides of above-mentioned outlet side rotation transfer part 40a side by side, has the rotation transfer part 48a, the 52a that coordinate with above-mentioned outlet side rotation transfer part 40a and is rotatably supported on above-mentioned fixed side parts 32 in the mode of rotating in linkage with above-mentioned output shaft 40;
A pair of outlet side rotary component 58,60, this a pair of outlet side rotary component 58,60 has and side face 58a, the 60a of helical spring in critical contact state, rotates the rotating gang of carrier 48,52 and rotates and be supported on freely on above-mentioned fixed side parts 32 in the mode relative with above-mentioned a pair of input side rotary component 54,56 with above-mentioned outlet side;
The first helical spring 62, the side face 58a of an outlet side rotary component 58 in side face 54a and the above-mentioned a pair of outlet side rotary component 58,60 of a side face 32a in a pair of side face 32a, the 32b of this first helical spring 62 and above-mentioned fixed side parts 32, an input side rotary component 54 in above-mentioned a pair of input side rotary component 54,56 is facing to configuration;
The second helical spring 64, the side face 60a of another outlet side rotary component 60 in side face 56a and the above-mentioned a pair of outlet side rotary component 58,60 of another side face 32b in a pair of side face 32a, the 32b of this second helical spring 64 and above-mentioned fixed side parts 32, another input side rotary component 56 in above-mentioned a pair of input side rotary component 54,56 is facing to configuration;
Above-mentioned helical spring 62,64 comprises:
Be pressed into the A portion on side face 54a, the 56a of above-mentioned input side rotary component 54,56;
With side face 58a, the 60a of above-mentioned outlet side rotary component 58,60 under critical contact state, the B portion chimeric with side face 58a, the 60a of above-mentioned outlet side rotary component 58,60;
Be pressed into the C portion in side face 32a, the 32b of above-mentioned fixed side parts 32;
The coiling direction of above-mentioned the first and second helical springs 62,64 is mutually reverse.
The preferred version of inverted input blocking mechanism of the present invention is, in the time setting as follows:
The minimal torque that makes above-mentioned input side rotary component roll tightly direction rotation to above-mentioned helical spring is set as to A portion locking moment of torsion;
Be C portion sliding torque by making above-mentioned helical spring C portion with respect to the torque setting of the side face relative sliding rotation of fixed side parts;
The minimal torque of the direction rotation that above-mentioned outlet side rotary component is rolled tightly to above-mentioned helical spring is set as to B portion locking moment of torsion;
Will be by above-mentioned helical spring rolling tightly, the torque setting that above-mentioned input side rotary component is rotated together with above-mentioned helical spring is that B portion diameter changes moment of torsion; There is following relation:
Locking moment of torsion > C portion of A portion sliding torque;
Locking moment of torsion > C portion of B portion sliding torque;
B portion diameter changes moment of torsion < C portion sliding torque.
The preferred version of inverted input blocking mechanism of the present invention is, above-mentioned rotation transfer part 38a, 40a; 46a, 50a; 48a, 52a are made up of gear.
Effect of the present invention is that the present invention can manufacture at an easy rate due to energy simplified structure, and can obtain realizing the effect of miniaturization.
Brief description of the drawings
Fig. 1 is the sectional view at the main position of inverted input blocking mechanism.
Fig. 2 is the sectional view of inverted input blocking mechanism.
Fig. 3 is the sectional view that represents the main position of other mode of execution of inverted input blocking mechanism.
Fig. 4 is the sectional view that represents other mode of execution of inverted input blocking mechanism.
Fig. 5 is the sectional view that represents other mode of execution of inverted input blocking mechanism.
Fig. 6 is the right side view that represents other mode of execution of inverted input blocking mechanism.
Fig. 7 is the sectional view that represents the main position of other mode of execution of inverted input blocking mechanism.
Fig. 8 is the sectional view that represents other mode of execution of inverted input blocking mechanism.
In figure:
2-fixed side parts, 4-input side rotary component, 6-input shaft, 8-outlet side rotary component, 10-output shaft, 12-helical spring, 14, 16-axle sleeve, 18-guide rod, 20-helical spring, 21-input shaft, 22-input side rotary component, 22a-inner peripheral surface, 26-fixed side parts, 26a-outer circumferential face, 26b-inboard cylinder portion, 28-output shaft, 30-outlet side rotary component, 30a-inner peripheral surface, 32-fixed side parts, 32a, 32b-inner peripheral surface, 34, 36-cover, 38-input shaft, 38a-rotates transfer part, 40-output shaft, 40a-rotates transfer part, 42, 44-running shaft, 46, 48, 50, 52-rotates carrier, 54-input side rotary component, 54a-outer circumferential face, 56-input side rotary component, 56a-outer circumferential face, 58, 60-outlet side rotary component, 62, 64-helical spring, 120-helical spring, 121-input shaft, 122-input side rotary component, 122a-inner peripheral surface, 126-fixed side parts, 126a-outer circumferential face, 126b-inboard cylinder portion, 128-output shaft, 130-outlet side rotary component, 130a-inner peripheral surface.
Embodiment
Below, with reference to accompanying drawing, formation of the present invention is described in detail.
Fig. 2 represents the sectional view of the mode of execution of inverted input blocking mechanism of the present invention, and main composition key element is: the fixed side parts 2 that are made up of pipe, the input shaft 6 being integrally formed with input side rotary component 4, the output shaft 10 and the helical spring 12 that are integrally formed with outlet side rotary component 8.
Input shaft 6 is configured to from the inside of fixed side parts 2 outstanding laterally, has been integrally formed the columned input side rotary component 4 larger than this shaft diameter on this input shaft 6.It is outstanding that output shaft 10 is configured to too from the inside of fixed side parts 2 outside round about, has also been integrally formed the columned outlet side rotary component 8 larger than this shaft diameter on this output shaft 10.Input shaft 6 and output shaft 10 arranged coaxial, by axle sleeve 14,16, centered by the axis L of input and output shaft 6,10, rotation is chimeric with the inside diameter of two axial ends of fixed side parts 2 freely.
Each front end of above-mentioned input side rotary component 4 and outlet side rotary component 8 and axially vertical end face, in the inside diameter of above-mentioned fixed side parts 2, rotation butt relatively freely mutually; The other end and axially vertical end face rotation freely with the end face butt of above-mentioned axle sleeve 14,16; Input shaft 6 and output shaft 10 are subject to the restriction of this axle sleeve 14,16 with respect to fixed side parts 2 movement in the axial direction.In the present embodiment, the diameter of input side rotary component 4 and outlet side rotary component 6 is done identically, their outer circumferential face 4a, 8a is relative across the gap of tubulose with the inner peripheral surface 2a of the inside diameter of fixed component 2.
In this gap, configure above-mentioned input side rotary component 4 and outlet side rotary component 8 and embedded helical spring 12 wherein.Above-mentioned helical spring 12 as shown in Figure 1, is pressed into A portion wherein, is being formed with the outer circumferential face 8a of outlet side rotary component 8 the B portion chimeric with it and the C portion that is pressed in the inner peripheral surface 2a of fixed side parts 2 under critical contact state by the outer circumferential face 4a of input side rotary component 4.At this, so-called critical contact state refers to the state before and after the contact while changing contact condition into by contactless state.
In the time setting as follows, that is: the necessary torque setting of the A portion that makes above-mentioned helical spring 12 being rotated along crimping direction (pressure increase direction) with respect to the side face 4a of input side rotary component 4 is A portion locking moment of torsion, namely the minimal torque that makes above-mentioned input rotary component 4 roll tightly direction rotation to above-mentioned helical spring 12 is set as to A portion locking moment of torsion; Be C portion sliding torque by the C portion that makes above-mentioned helical spring 12 with respect to the torque setting of the side face 2a relative sliding rotation of fixed side parts 2; In the time that the B portion of helical spring 12 is changed along crimping direction generation diameter with respect to the side face 8a of outlet side rotary component 8, be B portion locking moment of torsion by the necessary torque setting that makes above-mentioned B portion increase direction rotation with respect to side face 8a along pressure, namely the minimal torque of the direction rotation that above-mentioned outlet side rotary component 8 is rolled tightly to above-mentioned helical spring 12 be set as to B portion locking moment of torsion; Taking the side face 2a of fixed side parts 2 as supporting portion, by the B portion that makes helical spring 12 along with the orient diameter of the side face 8a crimping necessary torque setting that changes be that B portion diameter changes moment of torsion, namely by by the rolling tightly of above-mentioned helical spring 12, the torque setting that above-mentioned input side rotary component 4 is rotated together with above-mentioned helical spring 12 is that B portion diameter changes moment of torsion; There is following relation: locking moment of torsion > C portion of A portion sliding torque;
Locking moment of torsion > C portion of B portion sliding torque;
B portion diameter changes moment of torsion < C portion sliding torque.
In Fig. 2, symbol 18 is by input side rotary component 4 and outlet side rotary component 8 guide rod that rotation is connected freely on same axis relatively mutually, and is configured to insert in the axis hole forming along the axis L of input and output shaft 6,10 and chimeric with this hole.Guide rod 18 is for input side rotary component 4 and outlet side rotary component 8 are led to prevent eccentric parts, not necessarily parts.
Below, in said structure, the principle that the rotation of input side rotary component 4 is passed to outlet side rotary component 8 describes.First, at fixed side parts 2, under fixing state, if input the torque of a direction (direction that helical spring 12 is rolled tightly) to input shaft 6, input side rotary component 4 is to a direction rotation.Because helical spring 12 is pressed on input sidespin shape parts 4 with A portion, so pass to helical spring 12 on the above-mentioned pressing part that is rotated in helical spring 12 of above-mentioned input side rotary component 4, the above-mentioned A portion of helical spring 12 and outer circumferential face 4a link and rotate.
On the other hand, in the rotation initial stage of above-mentioned input side rotary component 4, because helical spring 12 is pressed into C portion in the inner peripheral surface 2a of fixed side parts 2, therefore its rotation is restricted.Consequently, helical spring 12, between A portion and C portion, is rolled tightly in B portion, and diameter dwindles in B portion.Thereby in B portion, helical spring 12 tightly wraps on the outer circumferential face of outlet side rotary component 8 and becomes one with it.Under this state, if further input shaft 6 is applied the torque of a direction, in this C portion, between helical spring 12 and the inner peripheral surface of fixed side parts 2, resist its frictional force and slide, outlet side rotary component 6 rotates with the rotating gang of input side rotary component 4, and output shaft 10 is rotated., the rotation of input shaft 6 is delivered on output shaft 10.On the other hand, in the time that input shaft 6 is inputted to the torque of other direction, helical spring 12 is subject to inner peripheral surface 2a taking fixed side parts 2 as supporting portion, the pressure of the directive effect expanding to spring diameter, the action of reduced does not occur in B portion, and therefore the rotation to other direction of input side rotary component 4 can not be delivered on outlet side rotary component 8.
In the time that output shaft 10 is inputted to torque forward or backwards, even if outlet side rotary component 8 rotates, as previously mentioned, because helical spring 12 is pressed on the outer circumferential face 4a of input side rotary component 4, and the outer circumferential face 8a of existence and outlet side rotary component 8 is to contact under small pressure or to have a small chimeric relation with gap, be that the outer circumferential face 8a of helical spring 12 and outlet side rotary component 8 is in critical contact state, thereby outlet side rotary component 8 dallies with respect to helical spring 12, the torque of outlet side rotary component 8 can not be delivered on helical spring 12, only outlet side rotary component 8 rotates forward or backwards, input shaft 6 does not rotate.
The mode of execution that Fig. 3 and Fig. 4 represent is that the A portion of helical spring 20 is pressed in the inner peripheral surface 22a of input side rotary component 22; B portion is contacted with the inner peripheral surface 30a of outlet side rotary component 30 with small pressure or to have small gap chimeric with it, chimeric with the state of critical contact and the inner peripheral surface 30a of outlet side rotary component 30 by the inner peripheral surface 30a of B portion and outlet side rotary component 30; C portion is pressed on the outer circumferential face 26a of fixed side parts 26.
In Fig. 4, the input side rotary component 22 of input shaft 21 and tubulose is same body structure, the inner peripheral surface 30a of the outlet side rotary component 30 of the inner peripheral surface 22a of this input side rotary component 22 and the tubulose that is integrally formed with output shaft 28 is positioned on same circumferential surface, and rotation is freely in abutting connection with relatively mutually.On the outer circumferential face 26a of above-mentioned fixed side parts 26, insert configuration helical spring 20, the A portion of helical spring 20 is pressed in the inner peripheral surface 22a of above-mentioned input side rotary component 22, B portion contacts with the inner peripheral surface 30a of above-mentioned outlet side rotary component 30 with slight pressure or to have small gap chimeric with it, helical spring 20 with the inner peripheral surface 30a of outlet side rotary component 30 in critical contact state.The C portion of helical spring 20 is pressed on the outer circumferential face 26a of above-mentioned fixed side parts 26.Herein, the relation of A portion locking moment of torsion and C portion sliding torque, the relation of B portion locking moment of torsion and C portion sliding torque, the mode of execution shown in relation and Fig. 1 to Fig. 2 of B portion diameter variation moment of torsion and C portion sliding torque is identical.
Below, the principle that the rotation of input side rotary component 22 is delivered to outlet side rotary component 30 in said structure is described.First, at fixed side parts 26, under fixing state, if input shaft 21 is inputted to the torque of a direction (making the direction of helical spring 20 and inner peripheral surface 22a crimping), input side rotary component 22 is to a direction rotation.Because helical spring 20 is pressed in input sidespin shape parts 22 in A portion, so the above-mentioned pressing part that is rotated in helical spring 20 of above-mentioned input side rotary component 22 passes to helical spring 20, the above-mentioned A portion of helical spring 20 and inner peripheral surface 22a link and rotate.
On the other hand, in the rotation initial stage of above-mentioned input side rotary component 22, because helical spring 20 is pressed in C portion on the outer circumferential face 26a of fixed side parts 26, therefore its rotation is restricted.
Consequently, helical spring 20, between A portion and C portion, expands in B portion, and diameter expands in B portion.Thereby in B portion, helical spring 20 is crimped on the inner peripheral surface of outlet side rotary component 30, forms with it one.Under this state, if further input shaft 21 is applied the torque of a direction, in this C portion, between helical spring 20 and the outer circumferential face of fixed side parts 26, resist its frictional force and slide, outlet side rotary component 30 links and rotates with the rotation of input side rotary component 22, and output shaft 28 is rotated., the rotation of input shaft 21 is delivered to output shaft 28.
On the other hand, in the time that input shaft 21 is inputted to the torque of other direction, helical spring 20 is subject to dwindling to spring diameter as supporting portion taking the outer circumferential face 26a of fixed side parts 26 active force of direction, the action of diameter expansion does not occur in B portion, and therefore input side rotary component 21 can not be delivered on outlet side rotary component 30 to the rotation of other direction.
When output shaft 28 is inputted to torque forward or backwards, even if outlet side rotary component 30 rotates, as previously mentioned, owing to existing helical spring 20 to be pressed in the inner peripheral surface 22a of input side rotary component 22, and contact with the inner peripheral surface 30a of outlet side rotary component 30 with small pressure or there is the small gap relation chimeric with it, at the inner peripheral surface 30a of helical spring 20 and outlet side rotary component 30 under the state in critical contact, thereby outlet side rotary component 30 dallies with respect to helical spring 20, the rotation of outlet side rotary component 30 can not be delivered on helical spring 20, only outlet side rotary component 30 rotates forward or backwards, torque can not be delivered to input shaft 21.
What Fig. 5 represented is to possess the mode of execution that utilizes helical spring structure of the present invention the rotation of the positive and negative both direction of input shaft to be delivered to the inverted input blocking mechanism of the function of output shaft.
Fixed side parts (shell) 32 as shown in Figure 6, its side view is formed as the rectangle of narrow width, and input shaft 38 and output shaft 40 rotate and are supported on freely in the central shaft hole of the cover 34,36 being fixedly installed on axial two end part respectively coaxially.And, between the cover 34,36 of fixed side parts 32, set up side by side pair of rotary shafts 42,44.
The rotation chimeric rotation carrier 46,48 and the rotation carrier 50,52 that are formed by the gear member of tubulose respectively of having configured freely in pair of rotary shafts 42,44, the rotation transfer part 46a, the 50a that are made up of the gear part of rotation carrier 46,50 engage with the rotation transfer part 38a being made up of the gear part of input shaft 38 respectively, and the rotation transfer part 48a, the 52a that are made up of the gear part of rotation carrier 48,52 engage with the rotation transfer part 40a being made up of the gear part of output shaft 40 respectively.At the tube chimeric input side rotary component 54,56 being formed by sleeve of having fixed respectively of above-mentioned solid of rotation 46,50; At the tube chimeric outlet side rotary component 58,60 being formed by sleeve of having fixed respectively of above-mentioned solid of rotation 48,52.
On outer circumferential face 54a, the 58a of above-mentioned input output sideway swivel parts 54,58, insert and configured helical spring 62, on outer circumferential face 56a, the 60a of above-mentioned input output sideway swivel parts 56,60, insert and configured helical spring 64.Form columned blank part in the inside of above-mentioned fixed side parts 32, on inner peripheral surface 32a, the 32b of this blank part respectively facing to having configured above-mentioned input output sideway swivel parts 54,58 and 56,60; Helical spring 12 identical with the relation of inner peripheral surface 2a input output sideway swivel parts 4,8 and fixed side parts 2 with shown in relation and Fig. 1 corresponding input output sideway swivel parts 54,58 and 56,60 and inner peripheral surface 32a, 32b helical spring 62,64.Therefore omit the explanation of this part.
In Fig. 5, the coiling direction of a pair of helical spring 62,64 is set as mutually oppositely, and the direction that helical spring 62,64 rolls tightly is mutually reverse.
In said structure, at fixed side parts 32, under fixing state, if input shaft 38 is inputted to the torque of a direction (direction that helical spring 62 rolls tightly, helical spring 64 unclamps), input shaft 38 is to a direction rotation.By this rotation, rotation carrier 46,50 is to a direction rotation, and input side rotary component 54,56 is rotated.By this rotation, the torque of input side rotary component 54 is delivered on helical spring 62 to rolling tightly direction, link with input side rotary component 54, the A portion of helical spring 62 and outer circumferential face 54a interlock and rotating, and the rotation of sliding of the opposing of C portion and the frictional force of the side face 32a of fixed side parts 32.
By the rotation of this A portion, the B portion of helical spring 62 is taking the side face 32a of fixed side parts 32 as supporting portion, and diameter dwindles to rolling tightly direction, with the outer circumferential face 58a crimping of outlet side rotary component 58.By the crimping of this B portion, the torque of input side rotary component 54 relies on the B portion of helical spring 62 to be delivered to the outer circumferential face 58a of outlet side rotary component 58.The rotation of outlet side rotary component 58 is delivered on output shaft 40 by rotation carrier 48, and output shaft 40 rotates with the rotating gang of a direction of input shaft 38.On the other hand, with the reverse helical spring 64 of helical spring 62 at this moment taking the side face 32b of fixed side parts 32 as supporting portion, to the directive effect pressure of helical spring enlarged-diameter, there is not the action of reduced in B portion, the rotation of a direction of input shaft 38 is not delivered on outlet side rotary component 60.
If input the torque of other direction to input shaft 38, input shaft 38 rotates to other direction, by action contrary to the above, torque is not delivered on outlet side rotary component 58, outlet side rotary component 60 links with input shaft 38, to another direction rotation, this rotation is delivered on output shaft 40 by rotation carrier 52.
Output shaft 40 is inputted to torque forward or backwards, output rotary component 58,60 carry out forward or backwards rotation time, the torque of outlet side rotary component 58,60 can not pass to helical spring 62,64,58,60 idle running of outlet side rotary component, the rotation of output shaft 40 can not be delivered on input shaft 38.
The mode of execution that Fig. 7 and Fig. 8 represent is the distortion of the mode of execution of Fig. 4, in this embodiment, the A portion of helical spring 120 is pressed on the inner peripheral surface 122a of input side rotary component 122; B portion is contacted with the inner peripheral surface 130a of outlet side rotary component 130 with slight pressure or to have micro-gap chimeric with it, chimeric with the inner peripheral surface 130a of outlet side rotary component 130 under the state of critical contact by the inner peripheral surface 30a of B portion and outlet side rotary component 130; C portion is pressed on the outer circumferential face 126a of fixed side parts 126.
In Fig. 8, input shaft 121 rotates chimeric with the 126b of inboard cylinder portion of fixed side parts 126 freely, and the output shaft 128 of tubulose rotates chimeric with the inner peripheral surface of fixed side parts 126 freely.On the lip part of input shaft 121, be integrally formed input side rotary component 122, the inner peripheral surface 122a of this input side rotary component 122 is positioned on same circumferential surface with the inner peripheral surface 130a of the tubulose outlet side rotary component 130 being integrally formed with output shaft 128, and rotation is freely in abutting connection with relatively arranging mutually.On the outer circumferential face 126a of the 126b of inboard cylinder portion of above-mentioned fixed side parts 126, insert configuration helical spring 120, it is upper that the A portion of helical spring 120 is pressed into the inner peripheral surface 122a of above-mentioned input side rotary component 122, and B portion contacts with the inner peripheral surface 130a of above-mentioned outlet side rotary component 130 with slight pressure or to have micro-gap chimeric with it.The C portion of helical spring 120 is pressed on the outer circumferential face 126a of the above-mentioned inboard cylinder 126b of portion.
The working principle of the mode of execution that Fig. 7 and Fig. 8 represent is identical with the mode of execution of Fig. 4, and here the description thereof will be omitted.
In embodiments of the present invention, rotation carrier and rotation transfer part are made up of gear, but are not limited to this, as long as can transmit rotation, can adopt friction wheel or the identical structure of other effects.And, both can one form input side rotary component 54,56 and rotation carrier 46,50, also can one form outlet side rotary component 58,60 and rotation carrier 48,52.In addition, in embodiments of the present invention, transmit the input output rotary component of side and the input output rotary component structure of configuration side by side of counterrotating transmission side owing to adopting by being rotated in the forward, as shown in Figure 6, can make total be configured to compactly the narrower shape of width, also the position that configuration space is less can be arranged on, the degrees of freedom of design can be improved.
In addition, in the mode of execution shown in 2 figure, Fig. 3, the profile of fixed side parts 2,26 can adopt other shapes arbitrarily such as square, and the present invention is not defined as circle by the profile of fixed side parts.
Claims (7)
1. an inverted input blocking mechanism, is characterized in that, comprising:
There are the fixed side parts (2,26) of the side face (2a, 26a) contacting with helical spring;
There is the side face (4a, 22a) contacting with helical spring, be rotatably installed in the input side rotary component (4,22) on above-mentioned fixed side parts (2);
Outlet side rotary component (8,30), this outlet side rotary component has the side face in critical contact state (8a, 30a) with helical spring, with above-mentioned input side rotary component (4,22) rotation freely relative, be rotatably installed on above-mentioned fixed side parts (2,26);
Each side face (2a, 26a with above-mentioned fixed side parts (2,26), input side rotary component (4,22) and outlet side rotary component (8,30); 4a, 22a; 8a, 30a) in the face of the helical spring (12,20) of ground configuration;
Described helical spring (12,20) comprising:
Be pressed into the A portion on the side face (4a, 22a) of above-mentioned input side rotary component (4,22);
With the side face (8a, 30a) of above-mentioned outlet side rotary component (8,30) under critical contact state, the B portion chimeric with the side face (8a, 30a) of above-mentioned outlet side rotary component (8,30);
Utilize the rotating force transmitting from above-mentioned input side rotary component (4,22), resist needed moment of torsion and the C portion that is rotated with respect to the side face (2a, 26a) of above-mentioned fixed side parts (2,26).
2. inverted input blocking mechanism according to claim 1, is characterized in that,
In the time setting as follows:
The minimal torque that makes above-mentioned input side rotary component roll tightly direction rotation to above-mentioned helical spring is set as to A portion locking moment of torsion;
Be C portion sliding torque by making above-mentioned helical spring C portion with respect to the torque setting of the side face relative sliding rotation of fixed side parts;
The minimal torque of the direction rotation that above-mentioned outlet side rotary component is rolled tightly to above-mentioned helical spring is set as to B portion locking moment of torsion;
Will be by above-mentioned helical spring rolling tightly, the torque setting that above-mentioned input side rotary component is rotated together with above-mentioned helical spring is that B portion diameter changes moment of torsion;
There is following relation:
Locking moment of torsion > C portion of A portion sliding torque;
Locking moment of torsion > C portion of B portion sliding torque;
B portion diameter changes moment of torsion < C portion sliding torque.
3. inverted input blocking mechanism according to claim 1, is characterized in that,
Above-mentioned fixed side parts (2) have inside diameter, be provided with the side face (2a) contacting with above-mentioned helical spring (12) at this inside diameter, taking above-mentioned input side rotary component (4) and outlet side rotary component (8) as axis body, be provided with the side face (4a) that contacts with above-mentioned helical spring (12) and the side face (8a) in critical contact state with above-mentioned helical spring (12) at the outer diameter part of this axis body.
4. inverted input blocking mechanism according to claim 1, is characterized in that,
Be provided with the side face (26a) contacting with above-mentioned helical spring (20) at the outer diameter part of above-mentioned fixed side parts (26); Be provided with the side face (22a) contacting with above-mentioned helical spring (20) at the inside diameter of above-mentioned input side rotary component (22); Be provided with the side face (30a) in critical contact state with above-mentioned helical spring (20) at the inside diameter of above-mentioned outlet side rotary component (30).
5. an inverted input blocking mechanism, is characterized in that, comprising:
There are the fixed side parts (32) of a pair of side face (32a, 32b) contacting with helical spring in inner side;
There is input side rotation transfer part (38a), be rotatably installed in the input shaft (38) on above-mentioned fixed side parts (32);
A pair of input side rotation carrier (46,50), this a pair of input side rotation carrier (46,50) is disposed at the both sides of above-mentioned input side rotation transfer part (38a) side by side, has the rotation transfer part (46a, 50a) that coordinates with above-mentioned input side rotation transfer part (38a) and is rotatably supported on above-mentioned fixed side parts (32) in the mode of rotating in linkage with above-mentioned input shaft (38);
A pair of input side rotary component (54,56), this a pair of input side rotary component (54,56) rotates in the mode linking with the rotation of above-mentioned input side rotation carrier (46,50) that to be supported on freely above-mentioned fixed side parts (32) upper, and has respectively the side face (54a, 56a) contacting with helical spring;
There is outlet side rotation transfer part (40a) and be rotatably installed in the output shaft (40) on above-mentioned fixed side parts (32);
A pair of outlet side rotation carrier (48,52), this a pair of outlet side rotation carrier (48,52) is disposed at the both sides of above-mentioned outlet side rotation transfer part (40a) side by side, has the rotation transfer part (48a, 52a) that coordinates with above-mentioned outlet side rotation transfer part (40a) and is rotatably supported on above-mentioned fixed side parts (32) in the mode of rotating in linkage with above-mentioned output shaft (40);
A pair of outlet side rotary component (58,60), this a pair of outlet side rotary component (58,60) has the side face in critical contact state (58a, 60a) with helical spring, rotates the rotating gang of carrier (48,52) and rotates and be supported on freely on above-mentioned fixed side parts (32) in the mode relative with above-mentioned a pair of input side rotary component (54,56) with above-mentioned outlet side;
The first helical spring (62), the side face (58a) of the outlet side rotary component (58) in side face (54a) and the above-mentioned a pair of outlet side rotary component (58,60) of the side face (32a) in a pair of side face (32a, 32b) of this first helical spring (62) and above-mentioned fixed side parts (32), the input side rotary component (54) in above-mentioned a pair of input side rotary component (54,56) is facing to configuration;
The second helical spring (64), the side face (60a) of another outlet side rotary component (60) in side face (56a) and the above-mentioned a pair of outlet side rotary component (58,60) of another side face (32b) in a pair of side face (32a, 32b) of this second helical spring (64) and above-mentioned fixed side parts (32), another input side rotary component (56) in above-mentioned a pair of input side rotary component (54,56) is facing to configuration;
Above-mentioned helical spring (62,64) comprising:
Be pressed into the A portion on the side face (54a, 56a) of above-mentioned input side rotary component (54,56);
With the side face (58a, 60a) of above-mentioned outlet side rotary component (58,60) under critical contact state, the B portion chimeric with the side face (58a, 60a) of above-mentioned outlet side rotary component (58,60);
Utilize the rotating force transmitting from above-mentioned input side rotary component (54,56), resist needed moment of torsion and the C portion that is rotated with respect to the side face (32a, 32b) of above-mentioned fixed side parts (32);
The coiling direction of above-mentioned the first and second helical springs (62,64) is mutually reverse.
6. inverted input blocking mechanism according to claim 5, is characterized in that,
In the time setting as follows:
The minimal torque that makes above-mentioned input side rotary component roll tightly direction rotation to above-mentioned helical spring is set as to A portion locking moment of torsion;
Be C portion sliding torque by making above-mentioned helical spring C portion with respect to the torque setting of the side face relative sliding rotation of fixed side parts;
The minimal torque of the direction rotation that above-mentioned outlet side rotary component is rolled tightly to above-mentioned helical spring is set as to B portion locking moment of torsion;
Will be by above-mentioned helical spring rolling tightly, the torque setting that above-mentioned input side rotary component is rotated together with above-mentioned helical spring is that B portion diameter changes moment of torsion;
There is following relation:
Locking moment of torsion > C portion of A portion sliding torque;
Locking moment of torsion > C portion of B portion sliding torque;
B portion diameter changes moment of torsion < C portion sliding torque.
7. inverted input blocking mechanism according to claim 5, is characterized in that, above-mentioned rotation transfer part (38a, 40a; 46a, 50a; 48a, 52a) formed by gear.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-157478 | 2009-07-02 | ||
| JP2009157478A JP5242510B2 (en) | 2009-07-02 | 2009-07-02 | Reverse input blocking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101943226A CN101943226A (en) | 2011-01-12 |
| CN101943226B true CN101943226B (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010220750.1A Expired - Fee Related CN101943226B (en) | 2009-07-02 | 2010-07-01 | Inverted input blocking mechanism |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5242510B2 (en) |
| CN (1) | CN101943226B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5586662B2 (en) * | 2012-06-27 | 2014-09-10 | トックベアリング株式会社 | Reverse input blocking mechanism |
| US10024415B2 (en) * | 2015-11-02 | 2018-07-17 | Gates Corporation | Isolating decoupler |
| US20200284094A1 (en) * | 2019-03-05 | 2020-09-10 | Hunter Douglas, Inc. | Operating system for an architectural-structure covering |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB168984A (en) * | 1920-06-10 | 1921-09-12 | Carl Schurmann | Ratchet coupling |
| CN1612981A (en) * | 2001-08-31 | 2005-05-04 | 里尔精密制造公司 | Input engaging clutch |
| CN1643822A (en) * | 2002-02-21 | 2005-07-20 | 三星电子株式会社 | Mobile communication apparatus including antenna array and mobile communication method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5582526U (en) * | 1978-12-01 | 1980-06-06 | ||
| JPS636229A (en) * | 1986-06-26 | 1988-01-12 | Nhk Spring Co Ltd | Spring clutch |
| JP4596502B2 (en) * | 2000-11-08 | 2010-12-08 | オリジン電気株式会社 | Bidirectional torque limiter |
| JP2002155973A (en) * | 2000-11-17 | 2002-05-31 | Origin Electric Co Ltd | Bidirectrional torque limiter |
| JP4890905B2 (en) * | 2006-03-29 | 2012-03-07 | Ｎｔｎ株式会社 | Actuator for continuously variable transmission |
-
2009
- 2009-07-02 JP JP2009157478A patent/JP5242510B2/en active Active
-
2010
- 2010-07-01 CN CN201010220750.1A patent/CN101943226B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB168984A (en) * | 1920-06-10 | 1921-09-12 | Carl Schurmann | Ratchet coupling |
| CN1612981A (en) * | 2001-08-31 | 2005-05-04 | 里尔精密制造公司 | Input engaging clutch |
| CN1643822A (en) * | 2002-02-21 | 2005-07-20 | 三星电子株式会社 | Mobile communication apparatus including antenna array and mobile communication method |
Non-Patent Citations (5)
| Title |
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| JP昭55-82526U 1980.06.06 |
| JP昭63-6229A 1988.01.12 |
| JP特开2002-147499A 2002.05.22 |
| JP特开2002-155973A 2002.05.31 |
| JP特开2007-263273A 2007.10.11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011012751A (en) | 2011-01-20 |
| JP5242510B2 (en) | 2013-07-24 |
| CN101943226A (en) | 2011-01-12 |
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