JP2004138124A - Bidirectional clutch device, and door device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bidirectional clutch device of simple structure and compact constitution. <P>SOLUTION: This device comprises an inner rotary body 6 integrated with an input shaft 8, an outer rotary body 7 integrated with an output shaft 10 that follows the input shaft 8 to rotate to be locked in accordance with rotation of the inner rotary body 6, and a lock release member 18 to release locking between the inner rotary body 6 and the outer rotary body 7. In the inner rotary body 6, lock protrusions 16a-16c and engagement recesses 16d-16f between the lock protrusions are uniformly formed. The lock release member 18 comprises a clearance protrusion 18b and an abutment protrusion 18c. Between the rollers 22a and 22b and the lock protrusions 16a-16c, energization springs 21a and 21b to energize the rollers 22a and 22b toward the abutment protrusion 18c are provided. In the inner rotary body 6, an inclined surface 17 with a gap Q narrowed in energization directions of the energization springs 21a and 21b is formed. A brake member 20 is provided to brake rotation of the lock release member 18. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a clutch device and an improvement of a door device using the same.
[0002]
[Prior art]
BACKGROUND ART Conventionally, a door device using a bidirectional clutch device has been known (for example, see Patent Document 1).
[0003]
The bidirectional clutch device is provided with a drive cam body integrally connected to a drive shaft (input shaft) and having a plurality of wedge-shaped cam surfaces formed on an outer peripheral surface thereof, and is capable of rolling on the wedge-shaped cam surface of the drive cam body. A relative rotation displacement is generated between the arranged holder, the rollers arranged at regular intervals by the holder, the driven member disposed opposite to the outer peripheral side of the drive shaft via the roller, and the roller and the driving cam body. When the drive shaft rotates in the forward or reverse direction, the roller bites between the wedge-shaped cam surface of the drive cam body and the rotation driven member so that the rotation driven member is rotated in the rotational direction of the drive member. When the rotation of the drive member is stopped, the rotation of the rotation follower member is free. This two-way clutch device is used for a door device such as a slide door.
[0004]
[Patent Document 1]
JP-A-2002-195310 (Page (3), Page (4), FIG. 1)
[0005]
[Problems to be solved by the invention]
However, this conventional two-way clutch device has a disadvantage that the structure is generally complicated and it is difficult to make the configuration compact.
[0006]
The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a bidirectional clutch device having a simple structure and a compact configuration, and a door device using the same. .
[0007]
[Means for Solving the Problems]
The bidirectional clutch device according to claim 1, wherein the inner rotating body integrally rotatably supported by the case and driven by the driving means, and rotatably supported by the case and driven by the input shaft. An outer rotating body having an output shaft that is integrally rotated and locked with rotation of the inner rotating body, and the inner rotating body interposed between the inner rotating body and the outer rotating body, and Having an unlocking member for unlocking with the outer rotating body,
The inner rotating body is formed with locking projections protruding radially outward at equal intervals in the rotation direction, and fitting recesses are equally spaced between the projections. The unlocking member is formed and the contact protrusion which comes into contact with a roller provided between the fitting recess and the locking protrusion, and a loose fitting protrusion which is loosely fitted in the fitting recess. A biasing spring is provided between the roller and the locking ridge to bias the roller toward the contact ridge, and the inner rotating body is An inclined surface is formed between the stop projection and the loose fitting projection, in which a gap between the inner rotating body and the outer rotating body narrows in a direction in which the biasing spring is biased,
A brake member is provided for biasing the unlocking member from the axial direction toward the case in order to apply braking to the rotation of the unlocking member.
[0008]
The door device according to claim 2, wherein the inner rotating body integrally rotatably supported by the case and driven by the driving means, and rotatably supported by the case and driven by the input shaft to rotate following the input shaft. An outer rotating body integrally having an output shaft and being locked with rotation of the inner rotating body; and an inner rotating body and the outer rotating body interposed between the inner rotating body and the outer rotating body. A door device using a bidirectional clutch device having an unlocking member for unlocking the body.
The inner rotating body is formed with locking projections protruding radially outward at equal intervals in the rotation direction, and fitting recesses are equally spaced between the projections. The unlocking member is formed and the contact protrusion which comes into contact with a roller provided between the fitting recess and the locking protrusion, and a loose fitting protrusion which is loosely fitted in the fitting recess. A biasing spring is provided between the roller and the locking ridge to bias the roller toward the contact ridge, and the inner rotating body is An inclined surface is formed between the stop projection and the loose fitting projection, in which a gap between the inner rotating body and the outer rotating body narrows in a direction in which the biasing spring is biased,
A brake member is provided for urging the unlocking member from the axial direction toward the case to apply braking to the rotation of the unlocking member,
The input shaft is connected to the drive unit via a rotation transmission unit, the output shaft is connected to a slide door or a rotation door via a rotation transmission unit, and the rotation of the output shaft rotates with respect to the input shaft. Door device characterized by being free.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
(Bidirectional clutch device)
1A to 1C are longitudinal sectional views of a clutch device according to the present invention. In FIG. 1, reference numeral 1 denotes a rectangular parallelepiped case. This case 1 is constituted by fastening divided cases 2 and 3 with screws 4. A rotation allowable space 5 is formed in the case 1.
[0010]
A drive member 6 and a driven member 7 are rotatably supported on the case 1. The drive member 6 has an input shaft 8 and an inner race portion (inner rotating body) 9 integrally as shown in FIGS. 2 (a) and 2 (b). The driven member 7 has an output shaft 10 and an outer race portion (outer rotating body) 11, as shown in FIGS. 3 (a) and 3 (b).
[0011]
The input shaft 8 is provided with a keyway 8a and a screw hole 8b. Similarly, the output shaft 10 is provided with a keyway 10a and a screw hole 10b.
[0012]
The outer race portion 11 includes a small-diameter tube portion 12 and a large-diameter tube portion 13. The large-diameter cylindrical portion 13 is arranged in the rotation allowable space 5. The inner race part 9 is arranged inside the large-diameter cylindrical part 13. A bush 14 with a flange is fitted to the small-diameter cylindrical portion 12.
[0013]
The inner race portion 9 has a disk-shaped portion 15 and a cylindrical portion 16 extending from the disk-shaped portion 15 in a direction in which the input shaft 8 extends. The input shaft 8 is fitted to the cylindrical portion 16. Engaging projections 16a, 16b, 16c projecting outward in the radial direction are formed at three locations at equal intervals in the circumferential direction.
[0014]
Between the locking ridge 16a and the locking ridge 16b, between the locking ridge 16b and the locking ridge 16c, and between the locking ridge 16c and the locking ridge 16a. Are formed with fitting recesses 16d, 16e, and 16f that are directed inward in the radial direction at substantially the center thereof.
[0015]
An inner race is formed between each of the locking ridges 16a to 16c and each of the fitting recesses 16d to 16f from the respective locking ridges 16a to 16c toward each of the fitting recesses 16d to 16f. The gap Q between the inner wall of the portion 9 and the inner wall of the outer race portion 11 is an inclined surface 17 (see FIG. 5).
[0016]
A release member (lock release member) 18 is provided in each of the fitting recesses 16d to 16f. As shown in FIGS. 4A and 4B, the release member 18 includes a disc-shaped portion 18a and an engagement ridge 18b that is loosely fitted in each of the fitting recesses 16d to 16f. A contact ridge 18c that contacts the roller; the engagement ridge 18b and the contact ridge 18c extend in the axial direction of the input shaft 8 from the disc-shaped portion 18a.
[0017]
The disc-shaped portion 18a is provided between the divided case 2 and the divided case 3. The split case 2 is provided with a ring washer-like spring member (wave washer) 19 as a brake member and a brake plate 20. The brake plate 20 is made of a synthetic resin. The disc-shaped portion 18b is pressed against the split case 3 by the ring washer-shaped spring member 19 and the brake plate 20, whereby a predetermined rotational braking is applied to the release member 18.
[0018]
Locking walls are formed on both sides of the locking protrusions 16a to 16c, and leaf springs 21a and 21b having an N-shaped cross section are provided on the locking walls. Rollers 22a and 22b are provided on both sides of each of the engaging ridges 16a to 16c. The rollers 22a and 22b are formed in a columnar shape, and are urged in directions away from each other by leaf springs 21a and 21b. On both sides of each of the engaging ridges 16a to 16c, contact curved portions 16g and 16h are formed on the radially outer side to contact the rollers 22a and 22b.
[0019]
This clutch device is connected to, for example, a motor with a speed reducer 23 as a driving means, as shown in FIG. In FIG. 6, reference numeral 24 denotes an output shaft of the motor 23 with a speed reducer, 25 denotes a gear as rotation transmission means, 26 denotes a gear as rotation transmission means attached to the input shaft 8, and 27 denotes an output shaft. 1 shows a pulley as a rotating transmission means.
[0020]
According to this clutch device, when the input shaft 8 of the drive member 6 is rotated, for example, in the direction of arrow A as shown in FIG. 5, the inner race portion 9 rotates in the same direction as the rotation direction of the drive member 6. As a result, the roller 22a rotates in the direction of arrow B, and the roller 22a rolls along the inclined surface 17 in a direction in which the gap Q between the inner race portion 9 and the outer race portion 11 narrows, and the roller 22a is The driving member 6 and the driven member 7 are locked by penetrating into the gap Q between the driving member 6 and the outer race portion 11.
[0021]
In the state shown in FIG. 5, in the initial stage of rotation of the driving member 6, the release member 18 has a gap r between the fitting ridge 18b and the fitting recesses 16d to 16f. The wall 16m at the rear of the recesses 16d to 16f in the rotation direction does not rotate until the wall 16m abuts on the fitting ridge 16b, but rotates with a delay of the rotation of the driving member 8, and therefore, the contact ridge 18c The contact curved portion 16g contacts the roller 22b rearward in the rotation direction, the roller 22b is pressed and moved in the direction in which the gap Q expands, and the biting of the roller 22b rearward in the rotation direction is released. Accordingly, the driven member 7 is rotated in the same direction following the driving member 6.
[0022]
When the driving member 6 is rotated in the direction (A 'direction) opposite to the direction of the arrow A, for example, the inner race portion 9 rotates in the same direction as the rotation direction of the driving member 6, and the roller 22b moves in the direction of the arrow B'. The roller 22b rotates in a direction in which the gap Q between the inner race portion 9 and the outer race portion 11 narrows, and the roller 22b bites into the gap Q between the inner race portion 9 and the outer race portion 11, and the driving member 6 And the driven member 7 are locked. Accordingly, similarly, the driven member 7 is rotated in the same direction by being driven by the driving member 6.
[0023]
When the driven member 7 is rotated in the direction of arrow C, the outer race 11 rotates in the same direction as the rotation direction of the driven member 7, and the roller 22a rolls in the direction of arrow D where the gap Q is widened along the inclined surface 17. At the same time, the roller 22b tries to roll in the direction of arrow D where the gap Q narrows along the inclined surface 17, but since the release member 18 is given rotational braking, the roller 22b is rotated in the rotational direction of the outer race portion 11. Since the roller 22b abuts on the contact curved portion 16g of the contact protruding ridge 18c of the release member 18 on the other side and the roller 22b cuts into the gap Q between the inner race portion 9 and the outer race portion 11, the inner race portion is released. The lock between the roller 9 and the outer race portion 11 by the roller 22b is released.
[0024]
When the driven member 7 is rotated in the direction of arrow C ′, the outer race 11 is also rotated in the same direction as the rotation direction of the driven member 7, and the roller 22 a is moved in the direction of arrow D where the gap Q narrows along the inclined surface 17. The roller 22b tries to roll in the direction of arrow D 'where the gap Q is widened while the roller 22b rolls in the direction. Since the roller 22a comes into contact with the contact curved portion 18h of the contact protrusion 18c of the release member 18 in the forward direction and the gap between the inner race portion 9 and the outer race portion 11 by the roller 22a is released, the inner race is released. The lock between the portion 9 and the outer race portion 11 by the roller 22a is released.
[0025]
Accordingly, the driven member 7 can rotate in either the forward or reverse direction with the driving member 6 fixed.
(Example of input to door device)
FIG. 7 is an explanatory diagram showing an embodiment of the invention in which the bidirectional clutch device according to the present invention is applied to a slide door device. In FIG. 7, reference numeral 30 denotes a slide door.
[0026]
The slide door 30 is provided with a pair of brackets 31 and 32 spaced apart from each other in front and rear thereof. Each of the brackets 31 and 32 has a roller 35 and a door that are rolled along rails 33 and 34 extending in the front-rear direction of the vehicle. Pulleys 36 and 36 'for opening and closing are provided.
[0027]
One end of a closing wire 37 and one end of an opening wire 38 are attached to the pulley 27 of the output shaft 10 of the bidirectional clutch device. The other end of the closing wire 37 is attached to a pulley 36, and the other end of the opening wire 38 is attached to a pulley 36 '.
[0028]
FIG. 7 shows a closed state of the slide door 30. When the motor 23 with a speed reducer is rotated in the direction of arrow E in the closed state of the slide door 30, the input shaft 8 of the bidirectional clutch device is moved in the direction of arrow F. Is transmitted, the output shaft 10 is rotated in the same direction as the rotation direction of the input shaft 8, the opening wire 38 is wound around the pulley 27, and the slide door 30 slides in the opening direction (arrow G direction). Is done. With the movement of the slide door 30 in the opening direction, the closing wire 37 is released from the pulley 27.
[0029]
Next, when the motor with reduction gear 23 is rotated in the direction opposite to the direction of arrow E, the input shaft 8 is rotated in the direction opposite to the direction of arrow F, and the closing wire 37 is wound around the pulley 27, The slide door 30 is slid in the closing direction. As the slide door 30 moves in the closing direction, the opening wire 38 is unwound from the pulley 27.
[0030]
If the slide door 30 is manually moved in the moving direction while the sliding door 30 is moving in the closing direction or the opening direction, the rotation is free from the output shaft 10 side to the input shaft 8 side. The sliding door 30 is smoothly slid in the moving direction.
[0031]
As described above, the embodiment of the invention in which the two-way clutch device is applied to the sliding door has been described. However, the present invention is not limited to the sliding door. For example, the two-way clutch device may be applied to a rotating door. it can.
[0032]
In the embodiment of the present invention, the rotation transmitting means is constituted by the pulley 27 attached to the output shaft 10 and the wires 37 and 38. However, the rotation transmitting means is not limited to this. The means may be constituted by a sprocket and a chain.
[0033]
【The invention's effect】
Since the present invention is configured as described above, the structure is simple and the structure can be made compact.
[Brief description of the drawings]
FIG. 1 is an explanatory view of an embodiment of a bidirectional clutch device according to the present invention, in which (a) is a longitudinal sectional view of the bidirectional clutch device, and (b) is a direction indicated by an arrow X1 shown in (a). (C) is a view of the bidirectional clutch device viewed from the direction of arrow X2 shown in (a).
FIGS. 2A and 2B are explanatory views of the driving member shown in FIG. 1, wherein FIG. 2A is a side view of the driving member, and FIG. 2B is a view of the driving member viewed from an arrow X3 direction shown in FIG. .
3A and 3B are explanatory views of the driven member shown in FIG. 1, wherein FIG. 3A is a longitudinal sectional view thereof, and FIG. 3B is a view of the driven member viewed from an arrow X direction shown in FIG.
4A and 4B are explanatory views of the unlocking member shown in FIG. 1, wherein FIG. 4A is a plan view thereof, and FIG. 4B is a longitudinal sectional view taken along line AA shown in FIG.
FIG. 5 is an explanatory diagram showing an internal configuration of a driving member and a driven member according to the present invention.
FIG. 6 is an external view showing an example of attachment of the rotation transmitting means to the bidirectional clutch device according to the present invention.
FIG. 7 is an explanatory diagram showing an example of application of the bidirectional clutch device according to the present invention to a slide door device.
[Explanation of symbols]
1 Case 6 Inner race part (inner rotating body)
7. Outer race part (outer rotating body)
8 input shaft 10 output shaft 17 inclined surface 18 release member (lock release member)
20 ... Brake plate (brake member)
16a to 16c: locking projections 16d to 16f: fitting recesses 18b: loose fitting projections 18c: contact projections 22a, 22b: rollers 21a, 21b: biasing springs

Claims (2)

An inner rotating body integrally having an input shaft rotatably supported by the case and driven by the driving means, and an output shaft integrally rotatably supported by the case and driven by the input shaft, and An outer rotating body that is locked with the rotation of the inner rotating body, and a lock release member that is interposed between the inner rotating body and the outer rotating body and unlocks the inner rotating body and the outer rotating body. And having
The inner rotating body is formed with locking projections protruding radially outward at equal intervals in the rotation direction, and fitting recesses are equally spaced between the projections. The unlocking member is formed and the contact protrusion which comes into contact with a roller provided between the fitting recess and the locking protrusion, and a loose fitting protrusion which is loosely fitted in the fitting recess. A biasing spring is provided between the roller and the locking ridge to bias the roller toward the contact ridge, and the inner rotating body is An inclined surface is formed between the stop projection and the loose fitting projection, in which a gap between the inner rotating body and the outer rotating body narrows in a direction in which the biasing spring is biased,
A two-way clutch device, further comprising a brake member for urging the unlocking member from the axial direction toward the case to apply a brake to the rotation of the unlocking member. An inner rotating body integrally having an input shaft rotatably supported by the case and driven by the driving means, and an output shaft integrally rotatably supported by the case and driven by the input shaft, and An outer rotating body that is locked with the rotation of the inner rotating body, and a lock release member that is interposed between the inner rotating body and the outer rotating body and unlocks the inner rotating body and the outer rotating body. A door device using a two-way clutch device having:
The inner rotating body is formed with locking projections protruding radially outward at equal intervals in the rotation direction, and fitting recesses are equally spaced between the projections. The unlocking member is formed and the contact protrusion which comes into contact with a roller provided between the fitting recess and the locking protrusion, and a loose fitting protrusion which is loosely fitted in the fitting recess. A biasing spring is provided between the roller and the locking ridge to bias the roller toward the contact ridge, and the inner rotating body is An inclined surface is formed between the stop projection and the loose fitting projection, in which a gap between the inner rotating body and the outer rotating body narrows in a direction in which the biasing spring is biased,
A brake member is provided to bias the unlocking member from the axial direction toward the case to apply braking to the rotation of the unlocking member,
The input shaft is connected to the drive unit via a rotation transmission unit, the output shaft is connected to a slide door or a rotation door via a rotation transmission unit, and the rotation of the output shaft rotates with respect to the input shaft. A door device characterized by being free.

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