JP4840016B2 - Clutch mechanism - Google Patents

Description

  The present invention is a clutch mechanism for connecting / disconnecting rotation between a shaft member and a cylindrical member that is disposed on the outer periphery of the shaft member and is rotatably provided, and is a mechanism for switching between electric and manual on-vehicle components. The present invention relates to a clutch mechanism suitable for use in the above.

  As a device that switches the rotating member between a state in which the rotating member can freely rotate with respect to the fixed member or the relative rotating member (rotation-free state) and a state in which the rotation is restricted (rotation restricted state), for example, there is an electromagnetic clutch. This electromagnetic clutch is a mechanism for connecting / disconnecting rotation between a rotating member and a fixed member or a relative rotating member using the force of an electromagnet, and since it can be electrically controlled, it is easy to control. Used in the field.

However, in the case of an electromagnetic clutch, although it is easy to control, it is equipped with electric wiring from an electromagnet or a power source and requires electric operation. Electricity is not essential, rotation is cut off with a simpler configuration and simple operation. There is also a demand for a clutch mechanism that enables contact.
The present invention has been devised in view of such a problem, and provides a clutch mechanism that does not require electric power and that can be connected and disconnected with a simpler operation and with a simple operation. For the purpose.

In order to achieve the above object, a clutch mechanism according to the present invention is a clutch mechanism that connects and disconnects rotation between a shaft member and a cylindrical member that is disposed on the outer periphery of the shaft member and is rotatably mounted. A winding member wound around a columnar portion equipped so as to be able to rotate integrally with the shaft member, and disposed between the shaft member and the cylindrical member, both of which are provided in the columnar portion. Two locking portions that respectively lock both ends of the winding member, and at least one of the two locking portions reduces the diameter of the winding member so that the winding member is the cylindrical member. Switching from a first locking position to be separated from the inner peripheral surface of the cylindrical member or a low pressure contact, and a second locking position to expand the diameter of the winding member and press the winding member to the inner peripheral surface of the cylindrical member. capable constructed, the cylindrical Member is supported by a bearing which is separately formed at the one end and the other end, the wound member is characterized by being disposed axially intermediate portion divided in the bearing (claim 1).

Before Kijiku member may be rotatable be fixed (claims 2, 3).
If you allow rotating the shaft member, optionally actuator is provided for rotating said shaft member (claim 4).

An end portion of the winding member is bent toward the columnar portion, and the locking portion is configured as a locking groove that locks the bent end portion of the winding member, and the locking groove Are provided with a diameter-reducing wall surface that presses the end portion toward the diameter-reducing side of the winding member, and a diameter-expanding wall surface that presses the end portion against the diameter-enlarging side of the winding member, The position of the locking portion is switched between the first locking position where the diameter reducing wall surface presses the end portion and the second locking position where the diameter expanding wall surface presses the end portion. It is preferable that a switching mechanism is provided (Claim 5 ).

The columnar portion is equipped to be movable in the axial direction with respect to the shaft member, and the locking groove has a wall surface for diameter reduction and is formed to extend in the axial direction of the shaft member. A second groove portion formed to extend in the axial direction of the shaft member at a position shifted in the circumferential direction from the first groove portion, both wall surfaces of the first groove portion, and the first A connecting groove portion having a curved wall surface that smoothly connects both wall surfaces of the two groove portions, and the switching mechanism drives the columnar portion in the axial direction with respect to the shaft member, so that the winding member it is preferably configured as an axial position switching mechanism for switching between a state where the end portion is positioned at the first and the second groove portion in a state located in the groove (claim 6).

The axial position switching mechanism is provided at one end of the shaft member and biases the columnar portion toward one side in the axial direction with respect to the shaft member, the other end of the shaft member, and the A slide lever interposed between the cylindrical portion and wedged to press the cylindrical portion against the urging force of the urging member in the axial direction according to its thickness. (Claim 7 ).
In this case, it is preferable that a slide actuator for the slide drive the slide lever is provided (claim 8).

The winding member is preferably formed in a coil spring shape (claim 9).
A linkage mechanism is provided between the shaft member and the columnar portion to link the columnar portion to the shaft member so as to rotate integrally with the shaft member, and the linkage mechanism includes the shaft member and the columnar shape. it is preferred that release structures are used to work with applied constant torque above between the parts (claim 10).

According to the clutch mechanism of the first aspect of the present invention, the winding member is reduced in diameter (intensifying the winding to the columnar portion) of at least one of the two locking portions, and the winding member is placed inside the cylindrical member. By setting the first locking position to be separated from the peripheral surface or to be pressed by low pressure, the cylindrical member can be rotated freely or with only a small resistance, and the winding member is expanded in diameter (winding around the cylindrical portion). The rotation of the cylindrical member is regulated by the frictional force between the winding member and the winding member by setting the winding member to the second locking position where the winding member is brought into high pressure contact with the inner peripheral surface of the cylindrical member. Therefore, it is possible to switch between rotation permission and rotation restriction of the cylindrical member simply by switching the locking portion between the first locking position and the second locking position.

Order to support the cylindrical member in the divided formed bearing comprises a cylindrical member can be brought into contact with member wound while supported on bearings cylindrical member (claim 1).
If the shaft member is fixed, the clutch mechanism functions as a brake mechanism, and the cylindrical member can be switched between a rotating state and a fixed state (Claim 2 ), and if the shaft member can be rotated, the cylindrical member can be switched into a state of integrally rotating state and to rotate relative to the shaft member (claim 3).

If the shaft member is rotatable, and if an actuator for rotating the shaft member is provided, this clutch mechanism functions as a power connection / disconnection clutch mechanism that transmits or interrupts the rotation of the shaft member to the cylindrical member ( Claim 4 ).
According to the clutch mechanism of the present invention of claim 5 , through the switching mechanism, the position of the locking portion is wound around the first locking position where the diameter reducing wall surface presses the end of the winding member, and the diameter expanding wall surface is wound. By switching to any one of the second locking positions that press the end of the member, the cylindrical member can be switched between the rotation permission state and the rotation restriction state.

According to the clutch mechanism of the present invention of claim 6 , the cylindrical portion is driven in the axial direction with respect to the shaft member, and the end portion of the winding member is positioned in the first groove portion and the second groove portion is positioned. The cylindrical member can be easily switched between the rotation-permitted state and the rotation-restricted state by switching between these states. In addition, the locking groove is composed of the first groove portion, the second groove portion, and the connecting groove portion having a bent wall surface that smoothly connects these wall surfaces, so that the columnar portion can be smoothly formed with respect to the shaft member. It can be driven in the axial direction.

According to the clutch mechanism of the present invention of claim 7 , by sliding the slide lever, the columnar portion can be driven in the axial direction according to its own thickness, and the cylindrical member is allowed to rotate and the rotation restriction. You can easily switch to the state.
If a slide actuator that slides the slide lever is provided, the cylindrical member can be switched between a rotation-permitted state and a rotation-restricted state by remote control, for example (claim 8 ).

Further, if the winding member is formed in the shape of a coil spring, the winding member is less likely to come into contact with each other when being pressed against the cylindrical member, and the clutch is easily pressed with certainty (claim 9 ).
According to the clutch mechanism of the present invention of claim 10 , in a normal state, the columnar portion rotates integrally with the shaft member. However, when a certain torque or more is applied between the shaft member and the columnar portion, the columnar portion is The shaft member can be rotated relative to the shaft member. For example, the cylindrical member can be rotated even when the cylindrical member is fixed to the winding member or when the actuator (Claim 4 ) fails.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
1 and 2 are views showing a clutch mechanism according to a first embodiment of the present invention. FIG. 1 is a structural view thereof, and FIG. 2 is a perspective view showing a coil spring-like member as a winding member.
As shown in FIGS. 1 (a1), (b1), (a2), and (b2), the clutch mechanism is disposed on the shaft member 1 supported by the support members 9a and 9b and the outer periphery of the shaft member 1. The rotation is connected to and disconnected from the cylindrical member 2 that is rotatably mounted.

A cylindrical spool member (columnar portion) 3 is provided on the outer periphery of the shaft member 1 so as to be able to rotate integrally with the shaft member 1, and a coil spring-like member 4 as a winding member is provided on the outer periphery of the spool member 3. It is wound. Thereby, the coil spring-like member 4 is equipped so as to be positioned between the spool member 3 and the cylindrical member 2 on the outer periphery of the shaft member 1.
Note that one end of the shaft member 1 is fixed to the support hole of the support member 9a so as not to rotate [see FIG. 1 (c)], and the other end is interposed through an annular end 3b of the spool member 3 and a bearing 7b, which will be described later. And supported by the support member 9b.

  The coil spring-like member 4 has both end portions 4a and 4b bent toward the axial center side (that is, the spool member 3 side), and these end portions 4a and 4b are locking portions 5 formed on the spool member 3. 6 is locked. The locking portions 5 and 6 are configured as locking grooves extending substantially in the axial direction on the left and right sides of the spool member 3. Each of the locking grooves 5 and 6 has the same shape and is arranged symmetrically about a plane including the axial center line.

  The locking groove 5 will be described as an example. The first groove 5A is formed so as to extend in the axial direction of the shaft member 1, and also extends in the axial direction of the shaft member 1 at a position shifted in the circumferential direction from the first groove 5A. The second groove portion 5B formed as described above and the connecting groove portion 5C that smoothly connects the first groove portion 5A and the second groove portion 5B are provided. The first and second groove portions 5A and 5B have upper and lower side wall surfaces that extend linearly in the axial direction in a side view, and the connection groove portion 5C is bent in a side view so as to smoothly connect these side wall surfaces. Side wall surfaces (curved wall portions) are provided above and below.

Although not shown, the locking groove 6 also includes a first groove portion 6A, a second groove portion 6B, and a connection groove portion 6C, similarly to the locking groove 5.
As shown in FIGS. 1 (a1) and (a2), the coil spring-like member 4 abuts both end portions 4a and 4b on the side wall surfaces (the wall surfaces for reduced diameter) 5a and 6a below the first groove portions 5A and 6A. Then, the diameter is reduced and the diameter is reduced, and as shown in FIGS. 1 (b1) and (b2), both end portions 4a and 4b are connected to the side wall surfaces (diameter expansion wall surfaces) 5b above the second groove portions 5B and 6B. , 6b is brought into an expanded state with a larger diameter.

  That is, as shown in FIG. 2, the coil spring-like member 4 increases the amount of winding (the amount of wrapping rotation) around the spool member 3 when both ends 4a and 4b are moved upward, and the coil spring-like member accordingly. The outer diameter of the member 4 is reduced (in a reduced diameter state), and when both ends 4a and 4b are moved downward, the amount of winding (the amount of winding rotation) around the spool member 3 is reduced, and the coil spring-like member 4 is correspondingly reduced. The outer diameter of becomes larger (expanded state).

Note that even if one end portion is fixed and only the other end portion is driven, the coil spring-like member 4 can be reduced in diameter and increased in diameter. Since the both end portions 4a and 4b are moved, there is an advantage that it is easy to ensure the diameter reduction amount and the diameter expansion amount with respect to the movement amount of each end portion 4a and 4b.
Further, between the support members 9 a and 9 b, bearings 7 a and 7 b that rotatably support the spool member 3 are disposed concentrically with the shaft member 1. The bearing 7a is fixed to the support member 9a, the bearing 7b is fixed to the support member 9b, and a gap is opened between the bearings 7a and 7b (intermediate intermediate portion). The coil spring-like member 4 is disposed in this gap.

  Therefore, the cylindrical member 2 supported by the bearings 7a and 7b does not press the coil spring-like member 4 against the inner peripheral surface 2a of the cylindrical member 2 if the coil spring-like member 4 is in a reduced diameter state (that is, If the coil spring-like member 4 is in a diameter-expanded state, the coil spring-like member 4 is in a state of being separated or a little pressed (low-pressure pressure contact), being not subjected to rotational resistance at all or being slightly rotatable. The coil spring-like member 4 is in a state where it is strongly pressed against the inner peripheral surface 2a of the cylindrical member 2 (that is, it is in a high-pressure press-contact state), and is in a state in which it cannot rotate due to large rotational resistance.

  Further, annular protrusions 3a and 3b are formed at both ends of the spool member 3, and the outer peripheral surfaces of the protrusions 3a and 3b are in sliding contact with the inner peripheral surfaces of the bearings 7a and 7b. Then, when the spool member 3 slides with respect to the shaft member 1 and the bearings 7a and 7b, both end portions 4a and 4b of the coil spring-like member 4 become lower side wall surfaces (for diameter reduction) of the first groove portions 5A and 6A. A first locking position where the coil spring-like member 4 is separated from the inner peripheral surface of the cylindrical member 2 by low pressure contact with the wall surface 5a, 6a, and both end portions 4a, 4b of the second groove portions 5A, 6A. It is configured to be switchable to a second locking position where the coil spring-like member 4 is brought into high-pressure contact with the inner peripheral surface of the cylindrical member 2 by contacting the upper side wall surfaces (expansion wall surfaces) 5b and 6b.

  On one end side of the shaft member 1, a coil spring 8 provided on the outer periphery of the shaft member 1 is interposed between one end of the spool member 3 and the support member 9a. 8 is biased to the other end side (the right side in FIG. 1 (a2)). A cylindrical extending member 3A is coupled to the other end of the spool member 3, and between the tip end surface of the extending member 3A and the shaft end member 1a fixed to the other end of the shaft member 1, A slide lever 10 is interposed in a wedge shape.

  The slide lever 10 is formed with a thin first wedge portion 10A and a thick second wedge portion 10B. The distal end surface 3c of the extending member 3A has a curved shape with a slightly projecting center, and the end thereof is smoothly chamfered, and the extending member 3A of the first wedge portion 10A and the second wedge portion 10B. The contact surfaces 10a and 10b with the distal end surface 3c are each formed in a curved shape having a slightly recessed center so as to match the shape of the distal end surface 3c of the extending member 3A. Connected with a smooth curved surface.

  Thereby, the slide lever 10 can be smoothly slid so that either of the contact surfaces 10a and 10b abuts on the tip surface 3c of the extending member 3A, and any of the contact surfaces 10a and 10b extends. When abutting against the front end surface 3 c of the member 3 </ b> A, each abutting state is maintained by the mutual curved surface shape and the urging force of the coil spring 8 received via the spool member 3.

In the case of the present embodiment, a linkage mechanism 19 is provided between the shaft member 1 and the spool member 3 to link the spool member 3 to the shaft member 1 so as to rotate integrally with the shaft member 1. The linkage mechanism 19 has a structure that can release the linkage when a certain torque or more is applied between the shaft member 1 and the spool member 3.
Here, a spring (for example, a coil spring) 19b is housed in a hole 19a that opens toward the outer periphery of the shaft member 1 on the inner periphery of the spool member 3, and is formed on the tip of the spring 19b and the outer periphery of the shaft member 1. A ball 19d is interposed between the recess 19c and the ball 19d biased by the spring 19b integrates the spool member 3 with the shaft member 1 in the rotational direction, thereby forming the cooperation mechanism 19.

  When a torque exceeding a certain level is applied between the shaft member 1 and the spool member 3, the recess 19c on the outer periphery of the shaft member 1 moves the ball 19d so as to contract the spring 19b, and the ball 19d is moved to the shaft member. By disengaging from the recess 19c on the outer periphery of the shaft 1, the rotation linkage between the shaft member 1 and the spool member 3 is released.

  Since the clutch mechanism according to the first embodiment of the present invention is configured as described above, for example, as shown in FIGS. 1 (a1) and (a2), the slide lever 10 is moved to a first wedge with a small thickness. The spool member 3 is disposed on the other end side of the shaft member 1 [rightward in FIG. 1 (a2)] by operating the contact surface 10a of the portion 10A to contact the distal end surface 3c of the extending member 3A. Thus, the coil spring-like member 4 is in a reduced diameter state in which both end portions 4a and 4b are brought into contact with the lower side wall surfaces (reduced diameter wall surfaces) 5a and 6a of the first grooves 5A and 6A of the spool member 3.

The cylindrical member 2 supported by the bearings 7a and 7b is not pressed against (i.e., separated from) the inner peripheral surface 2a of the cylindrical member 2 if the coil spring-like member 4 is in a reduced diameter state. ) Or a slight pressure contact (low pressure pressure contact) state, so that the rotation resistance is not received at all or only slightly received and can be rotated.
On the other hand, as shown in FIGS. 1 (b1) and (b2), the slide lever 10 is operated so that the contact surface 10b of the thick second wedge portion 10B comes into contact with the distal end surface 3c of the extending member 3A. Then, by disposing the spool member 3 on one end side of the shaft member 1 [left side in FIG. 1 (b2)], the coil spring-like member 4 has both end portions 4a and 4b at the second groove portion 5B of the spool member 3. , 6B is in a diameter-expanded state in contact with the upper side wall surfaces (wall surfaces for diameter expansion) 5b, 6b.

In the cylindrical member 2 supported by the bearings 7a and 7b, if the coil spring-like member 4 is in an expanded state, the coil spring-like member 4 is strongly pressed against the inner peripheral surface 2a of the cylindrical member 2 (that is, high pressure In a state of being pressed, the rotation resistance is greatly received and rotation is impossible.
As described above, according to the clutch mechanism according to the first embodiment, it is possible to make the cylindrical member 2 function as a brake mechanism that allows rotation of the cylindrical member 2 or restricts rotation only by the sliding operation of the slide lever 10. A simple clutch mechanism (brake mechanism) can be realized.

In contrast to the first embodiment, by providing a slide actuator that slide-drives the slide lever 10, such a clutch mechanism can be applied to an automobile door opening movement restricting device as follows.
3 to 6 are views showing an automobile door opening operation restricting device to which the clutch mechanism of the first embodiment of the present invention is applied, and FIG. 3 is a schematic configuration diagram of the automobile door to which the clutch mechanism is applied. 4 is a sectional view of the door of the automobile door and the door checker, FIG. 5 is an electric circuit diagram relating to the control system of the opening operation restricting device for the automobile door, and FIG. 6 is an opening operation restricting device for the automobile door. It is an operation | movement chart of each switch explaining these.

  As shown in FIG. 3, the door opening operation restricting device of this embodiment includes a vehicle body 21, a door (automobile door) 22, a door checker 23, a wire 24, a pulley (spool) 25, a clutch (wire stopper) 26, and a clutch controller. 27, door opening / closing sensor 28, obstacle sensor 29, vehicle compartment side operation unit 30, vehicle exterior operation lever 31, door holding switch (switch) 32, electronic control unit (ECU) 40, and the like. It is rotatably attached to the vehicle body 21 via a door hinge (not shown). The door holding switch includes a switch 32A that is operated from the inside of the vehicle and a switch 32b that is operated from the inside of the vehicle. Reference numeral 32 is used when these switches 32A and 32B are expressed together.

As shown in FIG. 4, the door checker 23 is inserted into an opening provided in the door 22, and the door checker 23 includes a hinge part 23A, an arm part (arm) 23B, a sliding member 23C, and a stopper part 23D. ing.
The hinge portion 23 </ b> A protrudes from the opening of the door 22 and is fixed to the vehicle body 21. One end of the arm part 23B is connected to be rotatable about the hinge part 23A, and a stopper part 23D having a diameter sufficiently larger than the arm part 23B is formed integrally with the arm part 23B on the other end side.

  The sliding member 23C is provided with a slider (not shown) that moves relative to the arm portion 23B while being pressed against the peripheral surface of the arm portion 32B by an elastic force. It is installed. Then, the arm portion 23B is inserted into an opening provided in the central portion of the sliding portion 23C, and the arm portion 23B moves relative to the sliding portion 23C according to the opening / closing operation of the door 22 as shown by a two-dot chain line in FIG. By relatively moving forward and backward, the slider of the sliding member 23C and the arm portion 23B slide.

Further, the sliding range between the slider of the sliding member 23C and the arm portion 23B is regulated by the sliding portion 23C coming into contact with the stopper portion 23D. That is, the position where the slider of the sliding member 23 </ b> C contacts the stopper 23 </ b> D is the maximum door opening of the door 22.
A recess 23E for defining the intermediate holding position of the door 22 is provided in the vicinity of the center of the arm portion 23B. The slider of the sliding member 23C presses against the bent surface of the recess 23E, thereby causing a large sliding. Due to the sliding resistance, an operating force (operation torque) necessary for opening and closing the door when the door is moved in the opening and closing direction is set appropriately.

  One end (tip portion) of the wire 24 is connected to the stopper portion 23 </ b> D of the door checker 23. The other end side (base end portion) of the wire 24 is wound around the pulley 25 and connected to the pulley 25. The pulley 25 rotates according to the relative displacement of the arm portion 23B and the wire 24 is fed out of the pulley 25. It is supposed to be. Although the detailed configuration will be described later, the pulley 25 is biased in the direction in which the wire 24 is wound up (that is, the door 22 closing direction), and the wire 24 is pulled by the pulley as the vehicle door 22 moves in the closing direction. 25 is wound up.

The pulley 25 is connected to a clutch 26 for restricting the rotation of the pulley 25 and stopping the feeding of the wire 24.
The clutch 26 shown in FIG. 1 is used for the clutch 26, and a spool (rotary member) 25a of a pulley 25 is attached to the cylindrical member 2 of the clutch mechanism. As shown in FIG. 1, a wire 24 is wound around the outer periphery of the cylindrical member 2, and the wire 24 can be fed and wound according to the rotation of the cylindrical member 2. The cylindrical member 2 and the spool (rotating member) 25a of the pulley 25 can be allowed to rotate or restricted when the slide lever 10 is slid by a slide actuator (not shown). A slide actuator that slides the slide lever 10 is controlled by the clutch controller 27.

The vehicle compartment side operation unit 30 is attached to an inner panel (vehicle interior side panel) of the door 22, and a door holding switch 32 </ b> A is attached in the vicinity of the vehicle compartment side operation unit 30. The passenger compartment side operation unit 30 is provided with a door opening lever 30A for releasing the engagement of the door latch and a door lock button 30B for locking and unlocking the door 22.
The outside operation lever 31 is attached to an outer panel (outside panel) of the door 22, and a door holding switch 32 </ b> B is attached in the vicinity of the outside operation lever 31. The outside operation lever 30 is a lever for releasing the engagement of the door latch, and also serves as a door handle.

Each of the door holding switches 32A and 32B is configured as a push button, and is configured to be switched on when the button is pressed once and switched off when the button is pressed twice within one second. The reason for pressing the button twice when the switch is turned off is to prevent the switch from being turned off against the intention of the door operator due to an erroneous operation or the like. Alternatively, the switch may be turned on and off. The door holding switch 32B may also be used as a switch of another system such as a keyless operation system.

The ON signals of the door holding switches 32A and 32B are input to the ECU 40. Further, the door holding switches 32A and 32B are provided with LEDs (light emitting diodes) 32C and 32D, respectively, so that the LEDs 32C and 32D are lit when the opening of the door 32 is restricted as described later. It has become.
In other words, the lighting of the LED allows the door operator to visually recognize whether or not the opening of the door 32 is being restricted by the lighting of the LED, but the lighting of the LED is omitted. Alternatively, instead of the LED, other means for visually recognizing or means for aural recognition such as a buzzer may be used.

The door open / close sensor 38 is a sensor that detects the open / closed state of the door 32. Hereinafter, the door open / close sensor 38 is turned on when the door 32 is open. When the door opening / closing sensor 38 is on, an on signal is input to the ECU 40.
The obstacle sensor 29 is provided at the lower part of the door 22 on the rear side of the vehicle, and detects the approach of an obstacle that obstructs the opening operation of the door 22. When the approach of the obstacle is detected, An ON signal is input to the ECU 40.

Then, the slide actuator slide-drives the slide lever 10 to the rotation restricting position [see FIGS. 1 (b1) and (b2)] where the coil spring-like member 4 is in high pressure contact with the inner peripheral surface 2a of the cylindrical member 2. The rotation of the cylindrical member 2 and the rotating member 25a is restricted.
Further, the rotation restricting force is limited to a predetermined value or less in consideration of an unexpected situation such as a malfunction, and when a rotational torque greater than the rotation restricting force is applied to the pulley 5, the friction surface 6A and the torque The transmission plate 5H or the fitting groove 5J and the fitting portion 5G slide so that the pulley 5 can rotate.

  Here, the functional configuration of the ECU 40 will be described. As shown in FIG. 5, the ECU 40 is input with respective ON signals from the door opening / closing sensor 28, the obstacle sensor 29, and the door holding switches 32 </ b> A and 32 </ b> B. In addition, in order to simplify the expression, the door holding switches 32A and 32B are illustrated as one switch, and the LEDs 32C and 32D of the door holding switches 32A and 32B are also illustrated as one.

  The ECU 40 is configured so that the coil spring-like member 4 is the inner peripheral surface of the cylindrical member 2 when the door opening / closing sensor 28 is on (door open) and the obstacle sensor 29 and / or the door holding switch is on. A signal for driving the slide lever 10 is sent to the slide actuator at a rotation restricting position in high pressure contact with 2a. In addition, the ECU 40 drives the slide lever 10 to a rotation allowable position where the coil spring-like member 4 is in low-pressure contact with the inner peripheral surface 2a of the cylindrical member 2 when the door opening / closing sensor 28 is off (door closed). Is transmitted to the slide actuator.

Since the opening operation restricting device for an automobile door according to the present embodiment is configured as described above, the following operations and effects are achieved.
The operation mode of the ECU 40 and the clutch 26 will be described with reference to FIG. 6. At the time T0, only the door opening / closing sensor 8 is in an on state. At this time, the coil actuator 4 is a cylindrical member. Since the slide lever 10 is driven to the side that is in low pressure contact with the inner peripheral surface 2a of the No. 2 and the spool (rotating member) 25a maintains the rotation free state, the opening of the door is not restricted.

  When the door operator presses one of the door holding switches 32A and 32B at time T1, the door holding switch is turned on and an on signal is input to the ECU 40. At this time, the door opening / closing sensor signal is turned on and the door holding switch is turned on, and the ECU 40 sends the slide lever 10 to the high pressure contact side through the slide actuator (the side where the spool member 3 is in the second locking position). ) To drive the spool member 3 to the second locking position.

When the spool member 3 becomes the second locking position and the rotation of the spool (rotating member) 25a is restricted and the opening movement of the door 22 is sufficiently restricted, the opening operation control of the door 22 is in an ON state (that is, the door 2 The LEDs 32C and 32D are lit to indicate that the opening is being regulated.
When the clutch 26 is controlled as described above, the rotation of the pulley 25 is restricted by the clutch 26 and the feeding of the wire 24 from the pulley 25 is restricted, so that the arm portion 23B of the door checker 2 moves in the door opening direction. Therefore, the door 22 is restricted from opening without being relatively displaced. At this time, when the door 22 is closed, the wire 24 is loosened, so that the door 22 is closed as usual, and the regulating force does not work.

  Next, at time T2, the door operator turns off the door holding switch signal by pressing one of the buttons of the door holding switches 32A and 32B twice within one second. When the door holding switch signal is turned off, the ECU 40 causes the slide actuator 11 of the clutch 26 to drive the shaft member 1 to the low pressure contact side (the side where the spool member 3 is in the first locking position) and hold the state. Is transmitted to the clutch controller 7, and the slide actuator 11 is controlled. At this time, the restriction on the opening of the door 22 is released, and the lighting of the LEDs 32C and 32D is also stopped.

Thereafter, at time T3, the door holding switch signal is turned on again. The ECU 40 transmits a signal to the clutch controller 27 to drive the shaft member 1 to the high pressure contact side through the slide actuator, and sets the spool member 3 to the second locking position. When the opening of the door is sufficiently restricted, the LEDs 32C and 32D are turned on.
At time T4, the door is completely closed and the door opening / closing sensor is turned off. The ECU 40 transmits a signal to the clutch controller 27 so as to stop energization of the clutch 26 after a predetermined time (1 to 2 seconds) from the time when the door open / close sensor signal is turned off.

(Second Embodiment)
Next, a clutch mechanism according to a second embodiment of the present invention will be described.
FIG. 7 is a configuration diagram of the clutch mechanism of the present embodiment and corresponds to FIG. 1 (a2). In FIG. 7, the same reference numerals as those in FIG. 1 denote the same components, and description thereof will be omitted or simplified.

As shown in FIG. 7, the clutch mechanism 13 of the present embodiment is configured such that the shaft member 1 is rotationally driven by a rotary actuator (electric motor) 11. Other configurations are the same as those of the first embodiment.
That is, in the clutch mechanism of the first embodiment, the shaft member 1 is fixed, and the clutch mechanism is configured as a brake mechanism that can be switched between a state in which the rotation of the cylindrical member 2 is allowed and a state in which the rotation is stopped. The clutch mechanism 13 of this embodiment is configured as a power transmission clutch mechanism that can be switched between a state in which the rotation of the shaft member 1 by the rotary actuator 11 is transmitted to the cylindrical member 2 and a state in which the rotation is not transmitted.

Since the clutch mechanism 13 of the present embodiment is configured as a power transmission clutch mechanism in this way, it can be applied, for example, to switch between electric and manual in an electric sliding door for automobiles.
In this case, a wire 24 ′ for driving a slide door (not shown) is wound around the cylindrical member 2, and when the cylindrical member 2 rotates, the wire 24 ′ is wound to drive the slide door to the open side or the closed side. Constitute. Accordingly, when the slide lever 10 is brought into a position where the coil spring-like member 4 is in high pressure contact with the inner peripheral surface 2a of the cylindrical member 2, when the shaft member 1 is rotated by the rotary actuator 11, the cylindrical member 2 also becomes the shaft member 1. The slide door can be driven to the open side or the closed side by rotating in conjunction with the wire 24 'and winding the wire 24'.

  Thus, when the clutch mechanism of the actuator (slide door drive motor) is in a state of interlocking with the respective rotary actuators 11, when the slide door is manually opened and closed, the stopped rotary actuator 11 is in resistance. However, if the slide lever 10 is brought into a position where the coil spring-like member 4 is in low-pressure contact with the inner peripheral surface 2 a of the cylindrical member 2, the cylindrical member 2 is in contact with the shaft member 1. Since it can be freely rotated, the wire 24 ′ wound around the cylindrical member 2 is not restrained by the rotary actuator 11, and the wire 24 ′ can be freely wound and fed out. Therefore, the sliding door can be manually opened and closed without any trouble.

  Also in the clutch mechanism of the present embodiment, as in the application example of the first embodiment, a slide actuator that slide-drives the slide lever 10 is provided, so that the electric open / close state and the manual open / close state of the slide door can be electrically controlled remotely. It becomes possible to switch to.

(Third embodiment)
Next, a clutch mechanism according to a third embodiment of the present invention will be described.
8 to 10 are views showing a clutch mechanism according to a third embodiment of the present invention. FIG. 8 is a sectional view of the clutch mechanism. FIG. 9 is a schematic perspective view of a backdoor for an automobile to which the clutch mechanism is applied. FIG. 10 is a perspective view showing a modification of the clutch mechanism of the automobile back door. In FIG. 8, the same reference numerals as those in FIGS. 1 and 7 denote the same components, and description thereof will be omitted or simplified.

Similarly to the second embodiment, the clutch mechanism 13 'of the present embodiment is also configured as a power transmission clutch mechanism, but as shown in FIGS. 8 and 9, the clutch mechanism 13' is different from the second embodiment. Has been applied.
In other words, as shown in FIG. 9, the clutch mechanism 13 'is interposed in an actuator 17 that drives the back door (tailgate) 18 to rotate, and opens and closes the back door 18 electrically or manually. Used as a switching mechanism.

As shown in FIG. 9, the back door 18 is electrically opened and closed with respect to the arm 12 having the base end portion 12a pivotally supported by the vehicle body and the tip end portion 12b pivoted to the back door 18, as shown in FIG. The back end 18 is opened and closed by swinging the front end 12b by rotating the base end 12a through the front end 12b.
That is, as shown in FIG. 8, the clutch mechanism 13 ′ of this embodiment is interposed between the rotary actuator 11 and the arm 12, and rotates the shaft member 1 by the rotary actuator 11 to the cylindrical member 2 and the arm 12. It is configured as a power transmission clutch mechanism that can be switched between a state to be transmitted to and a state not to be transmitted.

When the slide lever 10 is brought into a position where the coil spring-like member 4 is in high pressure contact with the inner peripheral surface 2a of the cylindrical member 2, when the shaft member 1 is rotated by the rotary actuator 11, the cylindrical member 2 also becomes the shaft member. The arm 12 that rotates in conjunction with 1 and rotates integrally with the cylindrical member 2 is driven to rotate, and the back door can be electrically opened and closed.
Further, when the clutch mechanism is in a state where the rotary actuator 11 and the arm 12 are interlocked as described above, when the back door is manually opened and closed, the stopped rotary actuator 11 becomes a resistance and is manually operated. However, if the slide lever 10 is placed at a position where the coil spring-like member 4 is in low-pressure contact with the inner peripheral surface 2a of the cylindrical member 2, the cylindrical member 2 can freely rotate with respect to the shaft member 1. The arm 12 that rotates integrally with the cylindrical member 2 is not restrained by the rotary actuator 11 and can rotate freely. Therefore, the back door can be manually opened and closed without any trouble.

Also in the clutch mechanism of the present embodiment, as in the application example of the first embodiment, a slide actuator that slide-drives the slide lever 10 is provided, so that the electric open / close state and the manual open / close state of the slide door can be electrically controlled remotely. It becomes possible to switch to.
Thus, according to the clutch mechanism 13 concerning this embodiment, even when the shaft member 1 rotates, this rotational force can be connected / disconnected.

In FIG. 10, a speed reduction mechanism comprising an inclined gear mechanism 15 and a spur gear mechanism 14 is interposed between the rotary actuator (electric motor) 16 and the shaft member 1. The arm 12 is driven at a reduced speed.
The gear 14a of the spur gear mechanism 14 is attached to the shaft member 1 (other configurations are the same as those of the third embodiment. In such a configuration, a rotary actuator (electric motor) is used. ) Since the load of 16 is reduced, a small and small capacity rotary actuator can be used.

(Other)
Although the embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and can be appropriately changed without departing from the spirit of the present invention.
For example, although the coil spring-like member 4 is used in the above embodiment as a winding member wound around the outer periphery of the spool member 3, for example, a partial cylinder using a partial cylinder having a shape along the outer periphery of the spool member 3 is used. The both ends or one end of each of the first and second end portions are brought into contact with the lower side wall surfaces (wall surfaces for diameter reduction) 5a, 6a of the first groove portions 5A, 6A to achieve a reduced diameter state, and both ends or one end of the partial cylinder are connected to the second groove portions 5B, 6B. It may be configured to achieve a reduced diameter state by contacting the upper side wall surfaces (wall surfaces for diameter expansion) 5b, 6b.

  Further, the locking portion that locks the end of the winding member is also configured by the locking groove as in the above-described embodiment, and the spool member 3 is positioned at the first locking position relative to the end of the winding member. In addition to the configuration of switching to the second locking position, the locking portion itself may be driven in the circumferential direction by some driving means.

It is a figure which shows the clutch mechanism as 1st Embodiment of this invention, Comprising: (a1) is a longitudinal cross-sectional view which shows the rotation free state, (a2) is a cross-sectional view which shows the rotation free state [of (a1) A-A arrow cross-sectional view], (b1) is a longitudinal cross-sectional view showing the rotationally restrained state, (b2) is a transverse cross-sectional view showing the rotationally restrained state [cross-sectional view taken along the BB arrow of (b1)], (C) is a diagram showing an end face of the shaft member [a view taken along arrow C in (a1)], and (d) is an enlarged sectional view showing the cooperation mechanism. It is a perspective view which shows the coiled spring-like member as a winding member of the clutch mechanism as 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the opening operation | movement control apparatus of the door for motor vehicles concerning 1st Embodiment of this invention, Comprising: It is a schematic block diagram of the door for motor vehicles. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the opening operation | movement control apparatus of the door for motor vehicles concerning 1st Embodiment of this invention, Comprising: It is sectional drawing of the attaching part of a vehicle body, a door, and a door checker. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the opening operation | movement restriction device of the door for motor vehicles concerning 1st Embodiment of this invention, Comprising: It is an electric circuit diagram concerning the control system. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the opening operation | movement restriction device of the door for motor vehicles concerning 1st Embodiment of this invention, Comprising: It is an operation | movement chart of each switch. It is a longitudinal cross-sectional view which shows the clutch mechanism as 2nd Embodiment of this invention, Comprising: It corresponds to FIG. 1 (a1). It is a longitudinal cross-sectional view which shows the clutch mechanism as 3rd Embodiment of this invention, Comprising: It corresponds to FIG. 1 (a1). It is a perspective view of the back door explaining the electric switchgear of the back door for cars concerning a 3rd embodiment of the present invention. It is a perspective view which shows the modification of the electrically operated opening / closing apparatus of the back door for motor vehicles concerning 3rd Embodiment of this invention.

Explanation of symbols

1 Shaft member 2 Cylindrical member 3 Spool member (columnar part)
3a, 3b Annular protrusion 3A of the spool member 3 3A Extension member 3c Tip end surface of the extension member 3A 4 Coil spring-like member 4a, 4b End portions of the coil spring-like member 4, 5 Locking portion 5A First 1 groove part 5B 2nd groove part 5C connection groove part 5a, 6a Side wall surface (wall surface for diameter reduction)
7a, 7b Bearing 8 Coil spring 9a, 9b Support member 10 Slide lever 10A First wedge portion 10B Second wedge portion 10a, 10b Contact surface 11 Rotating actuator (electric motor)
12 Arm 13, 13 ', 26 Clutch mechanism 19 Cooperation mechanism

Claims (10)

A clutch mechanism for connecting and disconnecting rotation between a shaft member and a cylindrical member that is disposed on the outer periphery of the shaft member and is rotatably provided,
A winding member wound around a cylindrical portion equipped so as to be able to rotate integrally with the shaft member, and disposed between the shaft member and the cylindrical member;
Both are provided in the columnar part, and have two locking parts that lock both ends of the winding member,
At least one of the two locking portions includes a first locking position for reducing the diameter of the winding member to separate the winding member from the inner peripheral surface of the cylindrical member or low-pressure contact, and expanding the winding member. It is configured to be switchable to a second locking position that causes the winding member to be in high pressure contact with the inner peripheral surface of the cylindrical member by making a diameter .
The clutch mechanism is characterized in that the cylindrical member is supported by a bearing divided at one end side and the other end side, and the winding member is disposed at a divided axial intermediate portion of the bearing. . The shaft member is characterized by being fixed, according to claim 1, wherein the clutch mechanism. Wherein the shaft member is rotatable, claim 1, wherein the clutch mechanism. The clutch mechanism according to claim 3 , further comprising an actuator that rotationally drives the shaft member. An end portion of the winding member is bent toward the cylindrical portion,
The locking portion is configured as a locking groove that locks the bent end portion of the winding member,
The locking groove has a diameter-reducing wall surface that presses the end portion toward the diameter-reducing side of the winding member, and a diameter-expanding wall surface that presses the end portion toward the diameter-expanding side of the winding member. Provided,
The position of the locking portion is between the first locking position where the wall surface for diameter reduction presses the end portion and the second locking position where the wall surface for diameter expansion presses the end portion. The clutch mechanism according to any one of claims 1 to 4 , further comprising a switching mechanism for switching. The cylindrical portion is equipped to be movable in the axial direction with respect to the shaft member,
The locking groove has a wall surface for diameter reduction and a first groove portion formed to extend in the axial direction of the shaft member, and has a wall surface for diameter expansion and is shifted in the circumferential direction from the first groove portion. A second groove formed so as to extend in the axial direction of the shaft member at a position, and a connection groove having a curved wall surface that smoothly connects both wall surfaces of the first groove portion and both wall surfaces of the second groove portion. In addition,
The switching mechanism drives the columnar portion in the axial direction with respect to the shaft member, and the end portion of the winding member is located in the first groove portion and the second groove portion. The clutch mechanism according to claim 5 , wherein the clutch mechanism is configured as an axial position switching mechanism that switches between the two. The axial position switching mechanism is provided at one end of the shaft member and biases the columnar portion toward one side in the axial direction with respect to the shaft member, the other end of the shaft member, and the A slide lever interposed between the cylindrical portion and wedged to press the cylindrical portion against the urging force of the urging member in the axial direction according to its thickness. The clutch mechanism according to claim 6, wherein: The clutch mechanism according to claim 7 , further comprising a slide actuator that slides the slide lever. The clutch mechanism according to any one of claims 1 to 8 , wherein the winding member is formed in a coil spring shape. A linkage mechanism is provided between the shaft member and the columnar portion to link the columnar portion to the shaft member so as to rotate integrally with the shaft member, and the linkage mechanism includes the shaft member and the columnar shape. The clutch mechanism according to any one of claims 1 to 9 , wherein a structure is used in which the cooperation is released when a certain torque or more is applied between the first and second parts.

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