JP2011162974A - Sliding door opening/closing device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding door opening/closing device for a vehicle, which reduces an unpleasant impact noise at mechanical collision by applying such a reaction force as to decrease a speed of a mechanical restraining motion of a lock device, midway through a locking operation, and which achieves both silencing and an increase in a fixing force by bringing about a restraining action while applying a holding force to the lock device in a locked state. <P>SOLUTION: This sliding door opening/closing device for the vehicle is equipped with a locking operation control unit 100. In the locking operation control unit 100, a rotor 103, which is rotated by meshing a rack portion 101a and a pinion portion 103a with each other along with the descent of a coupling body 101, has a rotary spring 104 elongated until one end of the rotary spring 104 reaches a top dead point through rotational movement, so that a reverse force can be applied to the rotation of the rotor 103 to inhibit the descent of the coupling body 101. In addition, after the one end of the rotary spring 104 exceeds the top dead point through the rotational movement, the rotary spring 104 is contracted so that a forward force can be applied to the rotation of the rotor 103 to maintain the descending state of the coupling body 101. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle sliding door opening and closing device for opening and closing a vehicle sliding door provided at a side door of a vehicle such as a train.

  The sliding door opening and closing device for vehicles gives priority to the safety of passengers, and when the sliding door is closed, it is required that the sliding door does not open freely regardless of whether it is running or stopped. Yes. Therefore, the vehicular sliding door opening and closing device includes a lock device that locks and unlocks the sliding door.

  A conventional sliding door opening / closing device for a vehicle including such a locking device is disclosed in, for example, Patent Document 1 (Japanese Patent Laid-Open No. 2000-142392, title of the invention “sliding door opening / closing device for a vehicle”). In the sliding door opening and closing device for a vehicle disclosed in Patent Document 1, the linear motor and the conversion device are arranged side by side in the left-right direction so that the conversion device converts the direction of the opening and closing driving force supplied by the linear motor, and the horizontal direction above the sliding door. It is possible to make effective use of the space.

  The locking device of Patent Document 1 will be described with reference to the drawings. FIGS. 15A and 15B are explanatory views of a lock device of the prior art, FIG. 15A is an explanatory view of the raised state of the latch lock, and FIG. 15B is an explanatory view of the lowered state of the latch lock. As shown in FIG. 15A, the lock device includes a frame body 501, a latch lock 502, a guide tube 503, and a lock spring 504. Here, the unit case 505, the second rack 506, and the lock hole 507 are part of a conversion device used for opening and closing the sliding door.

  In such a sliding door opening and closing device for a vehicle, especially when closing the sliding door, the second rack 506 moves in the horizontal direction in the unit case 505 until the lock hole 507 is positioned below the bar-shaped latch lock 502, and further the interlocking mechanism Accordingly, as shown in FIG. 15B, the latch lock 502 is lowered while being guided in the direction of the arrow A by the guide cylinder 503 together with the frame body 501 to which the required pressing force by the lock spring 504 is applied. The front end enters the lock hole 507 of the second rack 506 and is mechanically locked so that the second rack 506 cannot slide.

Even after being mechanically locked, the latch lock 502 is still in a state where a required pressing force is applied by the lock spring 504, and when the sliding door is forcibly opened manually or the influence of vibration is present. Even when the latch is received, a situation in which the latch lock 502 is lifted and disengaged from the lock hole 507 does not occur.
In the sliding door opening and closing device for a vehicle including such a locking device, the sliding door is reliably locked.

JP 2000-142392 A (paragraph numbers 0046 to 0050, FIGS. 12 and 13)

  In the lock device of the sliding door opening and closing device for a vehicle of the prior art, the latch lock 502 is lowered by the pulling force of the lock spring 504, but there is no other drag between the latch lock 502 and the guide tube 503 other than the friction resistance, When the latch lock 502 is lowered and locked, the lower end of the latch lock 502 is the lock hole 507 of the second rack 506 at a speed corresponding to the tension of the lock spring 504 having a required spring constant (a large speed close to 1 m / s). The frame 501 hits the guide tube 503 and finishes descending.

  Thus, every time the locking device is locked, the frame body 501 collides with the guide tube 503, and the vibration is transmitted to the sliding door opening / closing device for the vehicle to generate a high level of impact sound, which makes the passengers / occupants uncomfortable. There was a problem of giving. There is also a problem that the risk of mechanical failure increases due to impact.

  As a method of reducing the impact force, for example, a method of reducing the vibration transmission force to the guide tube 503 due to a collision with the frame body 501 by providing, for example, a rubber vibration-proof material on the upper surface of the guide tube 503 can be considered. However, this anti-vibration material is less effective unless it is a soft material such as a gel, and there is a problem that the anti-vibration material deteriorates or changes in shape due to secular change, requiring maintenance and inspection. .

  Further, as another method of reducing the impact force, a method of providing a damper mechanism that resists the downward force of the latch lock 502 can be considered, but a required reaction force for reducing the downward speed of the latch lock 502 is required, In order to obtain a sufficient impact force reduction effect, a drag force close to a required pressing force by the lock spring 504 is required. For this reason, there is a problem that the pressing force is reduced, and particularly in the locked state after the latch lock 502 is lowered, the required pressing force cannot be obtained, and the possibility of releasing the lock due to vibration or the like increases.

  Therefore, the present invention has been made in view of the above-described problems, and its object is to provide a reaction force that reduces the speed of the mechanical restraining operation of the lock device during locking, which is uncomfortable during a mechanical collision. An object of the present invention is to provide a sliding door opening and closing device for a vehicle that realizes both noise reduction and improvement of fixing force by reducing impact noise and restraining the locking device while applying a holding force in a locked state. .

According to the vehicle sliding door opening and closing device of the invention according to claim 1 of the present invention,
Sliding doors,
An opening and closing device for opening and closing the sliding door;
A locking device that performs a mechanical restraining operation to stop the opening and closing operation by the opening and closing device with a latch lock;
A lock operation control unit that applies a reaction force to reduce the restraint speed by the latch lock when performing the mechanical restraint operation of the lock device, and that imparts a holding force during the mechanical restraint;
It is provided with.

According to the sliding door opening and closing device for a vehicle of the invention according to claim 2 of the present invention,
The sliding door opening and closing device for a vehicle according to claim 1,
The locking operation control unit is
A rotation support;
A connecting body having a rack portion and moving up and down together with the latch lock;
A rotating body that is rotatably supported by the rotation support base and has a pinion portion that meshes with a rack portion of the connecting plate;
An urging portion to which one end is attached at a predetermined distance from the rotation center of the rotating body;
And the rotating body that rotates by the engagement of the rack part and the pinion part as the connecting body descends,
Until one end of the urging portion reaches top dead center due to rotational movement, the urging portion is extended and a force in the opposite direction to the rotation of the rotating body is applied to suppress the lowering of the connecting body, After one end of the urging portion exceeds the top dead center due to rotational movement, the urging portion is shortened and a forward force is applied to the rotation of the rotating body to maintain the lowered state of the connecting body. It is characterized by.

According to the sliding door opening and closing device for a vehicle of the invention according to claim 3 of the present invention,
The sliding door opening and closing device for a vehicle according to claim 1,
The locking operation control unit is
A rotation support;
A coupling body having a roller and moving up and down together with the latch lock;
A rotating body that is rotatably supported with respect to the rotation support base and has a cam surface that comes into contact with a roller of the coupling body;
An urging portion to which one end is attached at a predetermined distance from the rotation center of the rotating body;
The rotating body that rotates when the roller pushes the cam surface as the connecting body descends,
The rotating body is urged by the extending urging portion so that the cam surface comes into contact with the roller, and when the connecting body is lowered from the uppermost point to a predetermined height, the cam surface of the rotating body is below the roller. The lowering of the connecting body is suppressed by pushing up from the upper side, and when the connecting body lowers from a predetermined height to the lowest point, the cam surface of the rotating body comes into contact with the upper side of the roller. Thus, the lowered state of the connecting body is maintained.

According to the vehicle sliding door opening and closing device of the invention according to claim 4 of the present invention,
The sliding door opening and closing device for a vehicle according to claim 1,
The locking operation control unit is
A rotation support;
A pin provided in the latch lock;
A rotating body that is rotatably supported with respect to the rotation support base and has a groove in which the pin of the latch lock is loosely supported, and rotates according to the movement of the latch lock;
An urging portion to which one end is attached at a predetermined distance from the rotation center of the rotating body;
And the rotating body that rotates when the pin of the latch lock pushes in the groove as the latch lock is lowered,
Until one end of the urging portion reaches the top dead center due to rotational movement, the urging portion is extended and a force in the reverse direction to the rotation of the rotating body is applied, and the latch lock is lowered through the pin. In addition, after one end of the urging portion exceeds the top dead center due to rotational movement, a forward force is applied to the rotation of the rotating body, and the lowered state of the latch lock is maintained via the pin. It is characterized by doing.

According to the vehicle sliding door opening and closing device of the invention according to claim 5 of the present invention,
The sliding door opening and closing device for a vehicle according to claim 1,
The locking operation control unit is
A rotation support;
A rotating body rotatably supported by the latch lock;
A link body that is rotatably supported with respect to the rotation support base, and that supports the rotation body in another place.
An urging portion having one end attached to the rotating body at a predetermined distance from the rotation center of the link body;
The rotating body rotating while being guided by the link body as the latch lock is lowered,
Until one end of the urging portion reaches top dead center due to rotational movement, the urging portion is extended to apply a force in the opposite direction to the rotation of the rotating body to suppress the lowering of the latch lock, After one end of the urging portion exceeds the top dead center due to rotational movement, a forward force with respect to the rotation of the rotating body is applied to hold the lowered state of the latch lock.

According to the vehicle sliding door opening and closing device of the invention according to claim 6 of the present invention,
The sliding door opening and closing device for a vehicle according to claim 1,
The locking operation control unit is
A support base;
A coupling body having a roller and moving up and down together with the latch lock;
A slide portion that is supported so as to be horizontally movable with respect to the support base and has a cam surface that comes into contact with a roller of the coupling body;
A biasing portion that biases the cam surface of the slide portion so as to contact the roller;
The slide part that moves horizontally when the roller pushes the cam surface as the connecting body descends,
During the lowering of the connecting body, the drag force from the cam surface of the slide portion is applied with a force in the opposite direction to the lowering of the connecting body to suppress the lowering of the connecting body, and when the connecting body is in the lowered state, The drag force from the cam surface of the slide portion is applied with a forward force with respect to the lowering of the connecting body to hold the lowering state of the connecting body.

According to the vehicle sliding door opening and closing device of the invention according to claim 7 of the present invention,
In the vehicle sliding door opening and closing device according to any one of claims 1 to 6,
Have two sliding doors,
The switchgear is
An actuator having a mover for supplying an opening / closing driving force for opening / closing one of the two sliding doors;
A conversion device that converts an opening / closing driving force supplied by the mover of the actuator in a reverse direction and supplies an opening / closing driving force for opening / closing the other sliding door of the two sliding doors,
The lock device is disposed between the actuator and the conversion device, converts the movement of the mover of the actuator into a mechanical restraining operation of the conversion device while receiving a reaction force from the lock operation control unit, At the time of mechanical restraint, the restraint is maintained in a state in which a holding force is applied by the lock operation control unit, and the conversion operation by the conversion device is stopped by the latch lock to perform the mechanical restraint operation.

According to the vehicle sliding door opening and closing device of the invention according to claim 8 of the present invention,
The vehicle sliding door opening and closing device according to claim 7,
The actuator is
An extrusion fitting attached to the mover of the actuator;
Retractable metal fittings attached to the actuator mover;
And also
The locking device is
A slide cam device provided to be movable in the substantially horizontal direction;
A cam follower that moves up and down in accordance with the sliding motion of the slide cam device;
A lock spring that applies an urging force such that the latch lock moves in a direction of restraining the conversion device;
With
The latch lock is adapted to restrain the conversion device according to the vertical movement of the cam follower,
When the two sliding doors are closed and the push-out fitting presses the slide cam device according to the movement of the mover of the actuator, the cam follower and the cam follower according to the slide operation of the slide cam device, The latch lock is lowered by the urging force of the lock spring while receiving the reaction force from the lock operation control unit, and then the converter device is applied with the urging force of the lock spring and the holding force of the lock operation control unit being applied. Restrained,
When the two sliding doors are closed and the pull-in fitting pulls the slide cam device according to the movement of the actuator mover, the cam follower and the cam follower according to the slide operation of the slide cam device, The latch lock is lifted against an urging force of the lock spring and a holding force of the lock operation control unit to release the restraint of the conversion device.

According to the sliding door opening and closing device for a vehicle of the invention according to claim 9 of the present invention,
The sliding door opening and closing device for a vehicle according to claim 8,
At least one sliding door rail attached to the vehicle body;
At least two rail moving bodies movably attached along the sliding door rail;
With
The two sliding doors are respectively attached to the rail moving body.

According to the sliding door opening and closing device for a vehicle of the invention according to claim 10 of the present invention,
The sliding door opening and closing device for a vehicle according to claim 9,
Comprising a buffer for buffering the opening / closing driving force supplied from the mover of the actuator to the rail moving body;
The shock absorber is characterized in that the two sliding doors are kept closed over a predetermined distance even if the movable element of the actuator moves.

According to the vehicle sliding door opening and closing device of the invention according to claim 11 of the present invention,
The vehicle sliding door opening and closing device according to any one of claims 8 to 10,
A magnet stopper for holding the slide cam device by suction and stopping it at a predetermined position is provided.

According to the sliding door opening and closing device for a vehicle of the invention according to claim 12 of the present invention,
The vehicle sliding door opening and closing device according to any one of claims 8 to 11,
The converter is
A body having two substantially parallel surfaces;
Two racks movably attached so that teeth are opposed to each other on two substantially parallel surfaces of the main body;
One pinion meshing with the two racks;
With
The actuator mover supplies an opening / closing driving force to one of the two racks to rotate the pinion, and the other rack of the two racks opens / closes to the other sliding door. It is characterized by supplying power.

According to the sliding door opening and closing device for a vehicle of the invention according to claim 13 of the present invention,
The vehicle sliding door opening and closing device according to any one of claims 8 to 12,
It is characterized by comprising a connecting rod for transmitting the opening / closing driving force supplied by the mover of the actuator to the conversion device.

According to the vehicle sliding door opening and closing device of the invention according to claim 14 of the present invention,
The sliding door opening and closing device for a vehicle according to claim 13,
A connection adjusting mechanism for connecting the connecting rods while adjusting the connecting position is provided.

  According to the present invention, during the locking, a reaction force that reduces the speed of the mechanical restraining operation of the locking device is applied to reduce an unpleasant impact sound at the time of a mechanical collision, and in the locked state, the locking device It is possible to provide a sliding door opening and closing device for a vehicle that realizes both noise reduction and improvement of fixing force by restraining while applying a holding force.

It is a block diagram explaining the whole structure of the sliding door opening / closing apparatus for vehicles of the form for implementing this invention. It is a block diagram explaining the detailed structure of the sliding door opening / closing apparatus for vehicles of the form for implementing this invention. It is explanatory drawing of the locking device and locking operation control part of the sliding door opening / closing apparatus for vehicles of the form for implementing this invention. It is operation | movement explanatory drawing of the locking device of the sliding door opening / closing apparatus for vehicles of the form for implementing this invention. It is operation | movement explanatory drawing of the locking device of the sliding door opening / closing apparatus for vehicles of the form for implementing this invention. It is operation | movement explanatory drawing of the locking device of the sliding door opening / closing apparatus for vehicles of the form for implementing this invention. It is operation | movement explanatory drawing of the locking device of the sliding door opening / closing apparatus for vehicles of the form for implementing this invention. It is explanatory drawing explaining the detailed structure of the lock operation control part of the sliding door opening / closing apparatus for vehicles of the form for implementing this invention, Fig.8 (a) is explanatory drawing of the state before locking, FIG.8 (b) is locking It is explanatory drawing of a back state. It is explanatory drawing explaining the operation | movement model of a lock operation control part. It is a latch lock | rock fall distance-descent speed characteristic figure which shows the operation | movement characteristic of a lock operation control part. It is explanatory drawing explaining the detailed structure of the lock operation control part of the sliding door opening / closing apparatus for vehicles of the other form for implementing this invention, Fig.11 (a) is explanatory drawing of a state before locking, FIG.11 (b) These are explanatory drawings of the state after locking. It is explanatory drawing explaining the detailed structure of the lock operation control part of the sliding door opening / closing apparatus for vehicles of the other form for implementing this invention, Fig.12 (a) is explanatory drawing of a state before locking, FIG.12 (b) These are explanatory drawings of the state after locking. It is explanatory drawing explaining the detailed structure of the lock operation control part of the sliding door opening / closing apparatus for vehicles of the other form for implementing this invention, Fig.13 (a) is explanatory drawing of a state before locking, FIG.13 (b) These are explanatory drawings of the state after locking. It is explanatory drawing explaining the detailed structure of the lock operation control part of the sliding door opening / closing apparatus for vehicles of the other form for implementing this invention, Fig.14 (a) is explanatory drawing of a state before locking, FIG.14 (b) These are explanatory drawings of the state after locking. FIG. 15A is an explanatory diagram of a lock device according to the prior art, FIG. 15A is an explanatory diagram of the raised state of the latch lock, and FIG. 15B is an explanatory diagram of the lowered state of the latch lock.

  Then, the form for implementing this invention is demonstrated below, referring a figure. First, the overall structure of the vehicle sliding door opening and closing apparatus 1 will be described with reference to FIGS. As shown in FIG. 1, the vehicle sliding door opening and closing device 1 includes a lock device 10, a linear motor 20, a conversion device 30, a sliding door rail 40, a connecting portion 50, a connecting portion 60, a sliding door 70, and a sliding door 80. The locking device 10 includes a locking operation control unit 100.

  As shown in FIG. 2, the lock device 10 includes a lock operation control unit 100 and locks the pair of left and right sliding doors 70, 80 so that they are not opened when the pair of left and right sliding doors 70, 80 are closed. It has a function. When a part of the mover 21 of the linear motor 20 enters the locking device 10 and applies a pressing force, the locking operation is started, and a part of the mechanical parts of the conversion device 30 is fixed and the movement is restricted. The machine operation by the linear motor 20 and the conversion device 30 is stopped so that it cannot be opened and closed, and the sliding doors 70 and 80 are not reliably opened. The lock operation control unit 100 included in the lock device 10 adjusts the speed of the lock operation so as to slow down, thereby suppressing the generation of impact sound due to mechanical collision. Details of the mechanical structure of the locking device 10 and the locking operation control unit 100 will be described later.

  The linear motor 20 is a specific example of an actuator, and includes a mover 21 and a cover 22. The cover 22 of the linear motor 20 is fixed to a vehicle body (not shown). A stator (not shown) is arranged in the linear motor 20, and the movable element 21 moves in the horizontal direction in accordance with the magnetic force supplied by the stator. Drive control is performed so that the mover 21 moves in the left-right direction in the cover 22 by a control device (not shown).

  The conversion device 30 includes a unit case 31, a first rack 32, a pinion 33, and a second rack 34. The unit case 31 is a hollow rectangular cylinder and is fixed to a vehicle body (not shown). The first rack 32 is configured to move in parallel with the sliding door rail 40 by a slide rail (not shown) that facilitates horizontal movement, and meshes with the pinion 33. The pinion 33 meshes with the second rack 34. The second rack 34 is configured to move in parallel with the sliding door rail 40 by a slide rail (not shown) that facilitates horizontal movement.

  In the conversion device 30, the first rack 32 receives a horizontal force from the mover 21 of the linear motor 20 via the connection body 54 and the buffer body 57 of the connection portion 50. The pinion 33 drives the second rack 34 in the direction opposite to the direction in which the first rack 32 travels. The second rack 34 moves in a direction opposite to the first rack 32 and substantially parallel to the sliding door rail 40. A connecting body 64 is attached to the second rack 34, and a rail moving body 63 is fixed to the connecting body 64. Thus, the conversion device 30 converts the direction of the opening / closing driving force supplied from the linear motor 20 arranged on the side by the pinion 33 and supplies the opening / closing driving force to the other sliding doors 80.

  The sliding door rail 40 functions as a guide path that supports the rolling weight of the door wheels 52 and 55 of the connecting portion 50 and the door wheels 62 and 65 of the connecting portion 60 and guides the course. The sliding door rail 40 is fixed to the side wall of the vehicle body.

  The connecting portion 50 includes a connecting fitting 51, a door wheel 52, a rail moving body 53, a connecting body 54, a door wheel 55, a connecting fitting 56, and a buffer body 57. The rail moving body 53 of the connecting portion 50 is connected to the mover 21 of the linear motor 20 via the connecting body 54 and the buffer body 57 and is driven by the linear motor 20. The connecting fittings 51 and 56 of the connecting portion 50 connect the sliding door 70 to the rail moving body 53 by suspension support. The rail moving body 53 has door wheels 52 and 55 and is configured to be able to move smoothly along the sliding door rail 40 provided in the vehicle body. Therefore, the sliding door 70 also moves smoothly along the sliding door rail 40. The door wheels 52 and 55 may be rollers, rollers, or the like.

  The connection portion 60 includes a connection fitting 61, a door wheel 62, a rail moving body 63, a connection body 64, a door wheel 65, and a connection fitting 66. The rail moving body 63 of the connecting portion 60 is connected to the second rack 34 of the conversion device 30 via the connection body 64 and is driven by the conversion device 30. The connection fittings 61 and 66 of the connection part 60 connect the sliding door 80 to the rail moving body 63 by suspension support. The rail moving body 63 has door wheels 62 and 65, and is configured to be able to move smoothly along the sliding door rail 40 provided in the vehicle body. Accordingly, the sliding door 80 also moves smoothly along the sliding door rail 40. The door wheels 62 and 65 may be rollers, rollers, or the like.

The sliding door 70 is connected to the connecting portion 50 that moves smoothly along the sliding door rail 40, and the sliding door 70 itself moves smoothly along the sliding door rail 40.
The sliding door 80 is connected to a connecting portion 60 that moves along the sliding door rail 40, and the sliding door 80 itself moves smoothly along the sliding door rail 40.
These sliding doors 70 and 80 open and close to form an entrance.

  As an overall drive system of the vehicle sliding door opening and closing apparatus 1 having the above-described configuration, the opening / closing driving force supplied from the mover 21 of the linear motor 20 includes a buffer body 57, a connecting body 54, a rail moving body 53, and a connecting bracket. 51, 56 is transmitted to the sliding door 70, and via the connecting body 54, the first rack 32, the pinion 33, the second rack 34, the connecting body 64, the rail moving body 63, and the connecting brackets 61, 66, It is transmitted to the sliding door 80.

  Next, a series of opening / closing operations of the sliding door by the vehicle sliding door opening / closing apparatus 1 of the present embodiment will be described. First, the opening operation will be described. As shown in FIG. 2, when the sliding doors 70 and 80 are closed, a part of the mover 21 enters the lock device 10, and the lock device 10 restrains the second rack 34 of the conversion device 30. State. In the locked state, the lock operation control unit 100 maintains the restraint as a state in which a holding force is applied to the lock device 10. Under such circumstances, the mover 21 of the linear motor 20 starts to move in the direction of arrow a.

  At this time, the movable element 21 of the linear motor 20 is slidable by a fixed distance x in the opening / closing direction (left-right direction in the figure) with respect to the connecting body 54, and a buffer body 57 as a compression spring is inserted therebetween. ing. Thus, only the mover 21 of the linear motor 20 can be relatively moved by a fixed distance x in the opening direction in the state in which the sliding door 70 is closed. When a tensile force is applied while a part of the mover 21 comes out of the lock device 10, the conversion device 30 is released from the restraint. At this time, the lock operation control unit 100 tries to maintain the restraint by initially applying a holding force to the lock device 10, but applies a release force that releases the restraint after a while, so that the lock device 10 Releases the restraint. Thereafter, when the mover 21 moves further and the buffer body 57 cannot be compressed any more, the connecting body 54 also moves in the direction of arrow a, and the sliding door 70 also moves in the direction of arrow a.

  And simultaneously with the connection body 54 moving to the arrow a direction, the 1st rack 32 of the converter 30 also moves to the arrow a direction. The first rack 32 rotationally drives the pinion 33 in the arrow b direction. The pinion 33 drives the second rack 34 in the direction of arrow c. The second rack 34 drives the connecting body 64 fixed to the second rack 34 in the direction of arrow c, and the sliding door 80 moves in the direction of arrow c. In this way, the sliding doors 70 and 80 are opened by moving to the left and right in the figure in opposite directions.

  Subsequently, the closing operation will be described. When the sliding door is in the open state, the mover 21 of the linear motor 20 moves the connecting body 54 fixed to the mover 21 via the buffer body 57 in the direction opposite to the arrow a. At the same time as the connecting body 54 moves in the direction opposite to the arrow a, the first rack 32 of the conversion device 30 moves in the direction opposite to the arrow a. The first rack 32 rotationally drives the pinion 33 in the direction opposite to the arrow b. The pinion 33 drives the second rack 34 in the direction opposite to the arrow c. The second rack 34 drives the connecting body 64 fixed to the second rack 34 in the direction opposite to the arrow c, and the sliding door 80 moves in the direction opposite to the arrow c. In this way, the sliding doors 70 and 80 are moved in the opposite directions to the left and right in the figure and closed. At this time, the second rack 34 enters the lock device 10.

  When the sliding doors 70 and 80 are closed, the connecting body 54 cannot move any further. However, since the buffer body 57 as a spring extends, the movable element 21 of the linear motor 20 further slides by a certain distance x. Then, a part of the mover 21 enters the locking device 10 to apply a pressing force to perform a locking operation, and the locking device 10 restrains the second rack 34 of the conversion device 30. At this time, the locking operation control unit 100 applies a reaction force that suppresses the locking operation to the locking device 10. Accordingly, the lock operation speed is reduced, and the generation of mechanical sound due to mechanical collision is suppressed. Then, a holding force is applied to maintain the constraint immediately after the end of the locking operation, and the constraint is maintained. When the movement of the mover 21 proceeds and the buffer body 57 cannot be extended any more, the operation ends.

  In such a vehicular sliding door opening and closing device 1, since the lock operation control unit 100 is disposed in the lock device 10, a mechanical force is applied by applying a reaction force that reduces the speed of the mechanical restraint operation of the lock device 10 during locking. The sliding door opening and closing device 1 for a vehicle that reduces both unpleasant impact noise at the time and restrains the locking device 10 while retaining it in a locked state, thereby realizing both noise reduction and improvement of the fixing force. Can be provided.

  Next, a vehicle sliding door opening / closing device according to another embodiment will be described. In this embodiment, the configuration described with reference to FIGS. 1 and 2 is more specific, and as shown in FIGS. 3 and 4, in particular, the connecting rod 35, the buffer body 57, the lock device 100, and the lock operation control unit 10. Will be described in detail. In addition, about the same structure as the sliding door opening / closing apparatus 1 for vehicles of the form demonstrated previously using FIG. 1, FIG. 2, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  First, the connecting rod 35 will be described. The connecting rod 35 is attached between the rail moving body 53 and the first rack 32. When the relative positions of the movable element 21 and the first rack 32 are adjusted, the door end rubbers of the sliding door 70 and the sliding door 80 can be closed at the same time as they come into contact with each other at a predetermined pressure.

  In order to obtain such an optimal position, the connecting rod 35 is attached to the rail moving body 53 and attached while adjusting the direction of the arrow d using the screw portion 36 and the nut portions 37 and 38 of the connecting rod 35. The screw portion 36 and the nut portions 37 and 38 of the connecting rod 35 are collectively used as a connection adjusting mechanism 39. The connection adjusting mechanism 39 can be set so that the pair of sliding doors 70 and 80 are closed at an optimal position. As the connection adjusting mechanism 39, various mechanisms capable of adjusting the connection can be used. If the sliding doors 70 and 80 can be manufactured to be closed simultaneously without using the connection adjusting mechanism 39 by design, only the connecting rod 35 can be used and the connection adjusting mechanism 10 can be omitted. Furthermore, it is good also as a structure which loses a connecting rod as shown in FIG.

  When such a connecting rod 35 is employed, the left and right sliding doors 70 and 80 can be opened and closed mechanically synchronized using the linear motor 20 and the conversion device 30 arranged side by side. Regardless of the characteristics of the linear motor 20, the converter 30 reliably synchronizes the left and right sliding doors 70, 80. Further, the first rack 32 connected to the mover 21 of the linear motor 20 can be prevented from becoming long, and the cost required for rack manufacturing can be reduced.

  Next, the buffer body 57 will be described. As shown in FIG. 3, the buffer body 57 includes a buffer body 58 fixed to the rail moving body 53, and a spring 59 whose both ends are fixed to the buffer body 58 and the connecting body 21 a of the mover 21. Yes. The buffer 57 is provided to move the movable element 21 even when the sliding doors 70 and 80 are closed. The movable body 21 can be moved over the distance X by the buffer body 57 while the rail moving body 53 is stopped. The buffer body 57 may be configured such that the movable element 21 and the rail moving body 53 are directly fixed by the spring 58 without using the buffer body 58.

  Next, the locking device 100 will be described. First, the configuration of the linear motor 20 will be described. As shown in FIGS. 3 and 4, an extrusion fitting 23 and a pull-in fitting 24 are provided at the tip of the mover 21 of the linear motor 20. The extrusion metal fitting 23 is formed in a rod shape. The leading end of the retractable fitting 24 is formed in a hook shape. The base end of the push-out fitting 23 is fixed to the movable element 21, but the pull-in fitting 24 is pivotally supported by a pin at the base end and is pivotally supported in the direction of arrow e in FIG. 3. . The pull-in metal fitting 24 is disposed so as to overlap the upper surface of the push-out metal fitting 23 and is urged upward by a compression spring 25 inserted between the push-out metal fitting 23 and the draw-in metal fitting 24 as shown in FIG. . On the other hand, a headed pin 26 is attached to the lead-in fitting 24 through the hole of the push-out fitting 23. The retraction metal 24 is restricted from turning upward by the head of the headed pin 26, and the retraction metal 24 is prevented from coming off. A guide fitting 27 is attached to the tip of the case 22 of the linear motor 20 so as to come into contact with the upper surface of the pull-in fitting 24 and restrict upward rotation thereof. The pull-in fitting 24 is guided in the vertical direction by the guide fitting 27 according to the position of the mover 21. Further, a fixing bracket 28 for a magnet stopper (described later) is fixed to the tip of the case 22.

Next, the lock device 10 will be described. As shown in FIGS. 3 and 4, the lock device 10 includes a slide cam device 11, a magnet 12, a roller 13, a cam follower 14, a lock spring 15, a latch lock 16, a guide cylinder 17, and a lock operation control unit 100. .
The slide cam device 11 is provided so as to be movable in the moving direction (horizontal direction) of the sliding doors 70 and 80 by a slide rail (not shown). On the upper surface of the slide cam device 11, a cam surface 11a composed of an inclined step surface is formed, and in particular, a guide surface 11b is provided on the cam surface 11a. An engaging portion 11 c is formed at the tip of the slide cam device 11.

  The magnet 12 is provided in the engaging portion 11 c at the tip of the slide cam device 11. A magnet stopper is formed by the magnet 12 and the fixing bracket 28 fixed to the linear motor 20 facing the magnet 12. The magnet stopper is attracted and held by the magnet 12 to the fixing bracket 28, and the slide cam device 11 is stopped at the unlocked position in FIG.

The roller 13 is rotatably attached to the cam follower 14 and abuts on the cam surface 11 a and the guide surface 11 b of the slide cam device 11.
The cam follower 14 moves up and down by applying a lifting force from the roller 13 that comes into contact with the cam surface 11a and the guide surface 11b.
The lock spring 15 is a tension spring, and pulls the cam follower 14 downward to urge it in the direction of arrow f in FIG. The lock spring 15 is hung across the top plate 14 a above the cam follower 14 and the unit case 31 of the conversion device 30.

The latch lock 16 is fixed to the top plate 14a of the cam follower 14 on the upper side thereof. As shown in FIG. 4, a hole 34a is provided in the second rack 34, and the tip of the latch lock 16 can be inserted into the hole 34a. The latch lock 16 is also urged downward by the lock spring 15 through the top plate 14a.
The guide cylinder 17 is fixedly supported by the unit case 31 of the conversion device 30 and guides the latch lock 16 so as to be slidable in the vertical direction.
The lock operation control unit 100 controls the lock operation by applying a force particularly when the latch lock 16 is moved up and down. Details of the lock operation control unit 100 will be described later.

  Next, the locking operation of the locking device 10 will be described. Here, since description will be complicated when the lock control device 100 is described, only the lock operation will be described first. First, the restraining operation of the locking device 10 will be described. As shown in FIG. 5, when the mover 21 of the linear motor 20 is in the cover 22, the sliding door 70 and the sliding door 80 are in an open state. Further, the engaging portion 11 c of the slide cam device 11 is positioned near the side surface of the case 22 of the linear motor 20 by the magnet stopper. Under such circumstances, the mover 21 is moved in the direction of the arrow g, and the sliding door 70 and the sliding door 80 are closed. When the sliding door 70 and the sliding door 80 are closed, the rail moving bodies 53 and 63 stop moving.

  When the mover 21 is further moved after the rail moving bodies 53 and 63 are stopped, the spring 59 of the buffer body 57 extends in the direction of the arrow h as shown in FIG. Only the mover 21 starts to move while maintaining the stopped state. At this time, the mover 21 moves to the right side of the cover 22, and the push-out fitting 23 and the pull-in fitting 24 are projected from the cover 22. The protruding pusher 23 moves the slide cam device 11 in the direction of arrow h. The protruding retractable metal 24 is guided downward by a guide metal 27 fixed to the cover 22 and moves in the direction of arrow i.

  When the retractable metal fitting 24 is lowered, the hook portion at the distal end of the retractable metal fitting 24 engages the distal end of the engaging portion 11c of the slide cam device 11, and the movable element 21 and the slide cam device 11 are connected. Although the sliding doors 70 and 80 are closed as described above, the movable element 21 can move over the distance X, and a restraining operation is performed using this movement.

  When the mover 21 is further moved, the restraining operation of the second rack 34 of the conversion device 30 is started. When the mover 21 is moved, the push-out fitting 23 pushes the slide cam device 11 to the position shown in FIG. As a result, the roller 13 in contact with the guide surface 11b of the slide cam device 11 falls from the upper surface (see FIG. 6) of the cam surface 11a in the direction of arrow j in accordance with the movement of the slide cam device 11. At the same time, the downward movement of the roller 13 is transmitted to the cam follower 14.

  The cam follower 14 pulled downward by the lock spring 15 descends according to the pulling force of the lock spring 15. The latch lock 16 attached to the cam follower 14 is lowered, and the tip of the latch lock 16 is inserted into a hole 34a provided in the second rack 34, thereby restraining the horizontal movement of the second rack 34. In this way, the locking operation by the locking device 10 is completed when the conversion operation of the conversion device 30 is constrained.

  In the state locked in such a closed state, as shown in FIG. 7, the tip of the latch lock 16 enters the hole 34 a of the second rack 34 to lock the sliding movement of the second rack 34. As a result, the sliding doors 70 and 80 interlocking with the second rack 34 cannot move. Further, in this state, the push-out fitting 23 comes into contact with the engaging portion 11c of the slide cam device 11, and the hook of the retractable fitting 24 is engaged with the engaging portion 11c. The locking of the sliding doors 70 and 80 by the locking device 10 is performed in this way.

  Next, the constraint releasing operation of the lock device 10 will be described. When a sliding door opening command is issued from the restrained state as shown in FIG. 7, the mover 21 of the linear motor 20 moves in the direction of the arrow k. Then, the movable element 21 moves in the arrow k direction by a predetermined distance X while compressing the spring 59 while maintaining the sliding doors 70 and 80 in the closed position. At this time, the sliding cam is moved by the pull-in fitting 23 via the engaging portion 11c. The device 11 is pulled in the direction of arrow l. At this time, the lead-in fitting 23 tries to open upward, but does not open because it is held by the guide fitting 27.

  Accordingly, the slide cam device 11 that is firmly fixed by the pull-in metal fitting 24 moves in the direction of arrow I, but the roller 13 that contacts the cam surface 11a of the slide cam device 11 as the slide cam device 11 moves moves the guide surface of the cam surface 11a. It is pushed up to the upper surface by 11b and rises in the direction of arrow m.

  The upward movement of the roller 13 is transmitted to the cam follower 14. The ascending cam follower 14 ascends against the pulling force of the lock spring 15. The latch lock 16 attached to the cam follower 14 ascends together with the cam follower 14, and the leading end of the latch lock 16 inserted into the hole 34a of the second rack 34 comes off as shown in FIG. Release the restraint. On the other hand, when the moving distance of the mover 21 reaches approximately X, the pull-in fitting 23 is not pressed by the guide fitting 27. As a result, the retractable metal fitting 23 is rotated upward by the action of the compression spring 25 and is disengaged from the engaging portion 11 c of the slide cam device 11. However, even if the pull-in fitting 23 is removed, the magnet 12 of the magnet stopper is attracted and fixed to the fixing bracket 28, and the slide cam device 11 stays at the advanced position by this attracting and holding, so that the roller 13 is pushed up as shown in FIG. Hold. Thereafter, the mover 21 moves the sliding door 70 leftward to a predetermined open position. Accordingly, the sliding door 80 moves to the right. Thereby, the opening operation of the sliding doors 70 and 80 is completed. In this way, the restriction of the conversion operation of the conversion device 30 is released, and the sliding door can be opened and closed.

  In such a sliding door opening and closing device for a vehicle, since the shock absorber 57 for buffering the opening and closing driving force supplied from the mover 21 of the linear motor 20 is provided, the two sliding doors 70 and 80 are closed. The mover 21 of the linear motor 20 can be moved. And since the locking device 10 which restrains conversion operation | movement of the opening / closing driving force by the converter 30 was provided between the linear motor 20 and the converter 30, since restraint and restraint release are performed reliably, high reliability is maintained. be able to.

Next, a lock operation control unit that characterizes the present invention will be described with reference to the drawings.
As shown in FIG. 8, the lock operation control unit 100 is a rotation mechanism, and includes a coupling body 101, a rotation support base 102, a rotation body 103, and a rotation spring 104.
The coupling body 101 has a rack portion 101a formed on one side surface. The other end of the connection body 101 is connected and fixed to a latch lock 16 of the lock device 10, and the connection body 101 moves up and down together with the latch lock 16 of the lock device 10. The guide tube 17 is formed with an elongated slot 17a with a part of the side cut away, and the connecting body 101 moves along the slot 17a. The rack portion 101a of the coupling body 101 is set so as to come out from the long hole portion 17a of the guide tube 17.

The rotation support base 102 is fixed on the unit case 31.
The rotating body 103 is rotatably provided with respect to the rotation support base 102, and a pinion part 103a is formed on the outer periphery. The pinion part 103a of the rotating body 103 meshes with the connecting body 101 rack part 101a.
The rotation spring 104 is a specific example of the urging portion, and one end is supported by the unit case 31 and the other end is supported at one point near the outer peripheral portion that is a predetermined distance away from the rotation center of the rotating body 103. The rotary spring 104 is biased so as to be pulled in the direction of arrow n.

  Next, the lock operation control by the lock operation control unit 100 will be described. Before the conversion device 30 is restrained, the state is as shown in FIG. In this case, the rotary spring 104 is in a state of applying a rotational force to the rotating body 103, and the coupling body 101 is applied with a reaction force in the upward direction. The latch lock 16 is applied with a reaction force upward via the coupling body 101.

During the restraining operation, the reaction force from the rotating body 103 is transmitted to the latch lock 16 via the connecting body 101, so that the lock operation control for reducing the falling speed of the latch lock 16 is performed. Such lock operation control is applied until the support point of the rotary spring 104 on the rotating body 103 reaches the top dead center (the highest point).
Then, the locking operation ends after a while after the support point of the rotary spring 104 exceeds the top dead center (the highest point). From the time when the support point exceeds the top dead center (the highest point) until the lock operation is completed, the latch lock 16 is urged downward, and the state shifts to a fixed state where a holding force is applied. However, since this support point is just after the top dead center (the highest point), the urging force at this time is a small force in the vertical direction, and the holding force is reduced. Therefore, most of the holding force is a value set by the lock spring 15. Note that the holding force may be increased by rotating the support point beyond the top dead center (the highest point) by about a half turn. The holding force is appropriately selected. When the unlocking operation is performed, the reverse operation is performed. In particular, the connecting body 101 is urged so as to be lifted upward. However, the downward force of the lock spring 15 is not exceeded, and an impact is generated even when unlocking. There is no. The lock operation control is performed in this way.

Next, the locking operation control unit 100 will be modeled as shown in FIG. 9 to describe the locking operation control. Here, F _k1 indicated by a white arrow is a force to push down the latch lock 16 by the lock spring 15 or the like, and F _k2 is to push up the latch lock 16 by the rotating body 103 or the like biased by the rotation spring 104 or the like. It is the power to do. Note that F _k2 is a force that pushes up the latch lock 16 from the point A to the point B (top dead center: highest point), but a force that pushes down the latch lock 16 from the point B to the point C. Become. When such a force acts on the latch lock 16, assuming that the mass of the latch lock 16 is m and the displacement amount of the latch lock 16 is X, the equation of motion of the latch lock 16 is as follows.

The details of F _k1 will be examined. When the initial lowering force of the latch lock 16 is F _o1 , the spring constant of the lock spring 15 is k ₁ , and the damping constant of the damping force received when the latch lock 16 slides on the guide tube 17 is c ₁ , the latch lock 16 is pushed down. The force F _{k1 to be obtained} is represented by the following equation.

Next, the details of F _k2 will be examined. The inclination angle of the rotary spring 104 is φ, the initial angle is α, the angle of the support point to which the rotary spring 104 is attached is θ, the reaction force received by the rotary spring 104 is F _o2 , and the spring constant of the rotary spring 104 is k ₂ The distance from the center of the body 103 to the attachment point of the rotary spring 104 is r, the initial length of the rotary spring 104 is L ₂ , the changed length of the rotary spring 104 is L ₂₁ , and the rotary body 103 is connected to the rotary support base 102. when the attenuation constant of the damping forces encountered when rotating and c _2, the force F _k2 to pushes up the latch lock 16 is as follows.

Substituting such F _k1 and F _k2 into the equation of motion of the latch lock 16 gives the following equation.

The behavior of the latch lock 16 can be predicted by the equation of motion of the latch lock 16.
As an example, the relationship between the descent distance and speed (example / thick line) of the present invention and the relationship between the descent distance and speed (prior art / thin line) are compared. Here, it is assumed that the rotating body 103 performs the same rotational movement as the descending distance of the latch lock 16 and there is no frictional resistance.
In the relationship between the descent distance and the speed (prior art / thin wire), m = 100 g, k ₁ = 1.5 N / mm, free length of the lock spring 15 = 60 mm, initial elongation = 75 mm, initial tension = 15 N This represents the relationship between the descent distance and speed when substituting.
Further, in the relationship between the descent distance and the speed (Example / thick line), in the above equation of motion, the lock spring 15 with k ₁ = 0.9 N / mm and initial tension = 6 N, K ₂ = 0.7 N / mm The relationship between the descending distance and speed when the rotary spring 104 having an initial tension of 4 N and a free length of 60 mm is set at a position of r = 10 mm and an initial angle θ = 0 ° with an initial length of 64 mm is shown. This relationship is shown in the characteristic diagram of FIG.

According to the characteristic diagram of FIG. 10, the speed when the latch lock 16 is lowered by 10 mm is about 2.5 m / s in the present invention, but is about 1.3 m / s in the present invention. Since the change is about ½, the noise level is reduced by about 6 dB.
Further, the required pressing force acting on the latch lock 16 at the time of locking is secured to 25N in the present invention as compared with 25N of the prior art, and a state in which there is no reduction in the force is maintained, and reliable locking is performed.
In this embodiment, a tension spring is used as the rotation spring 104, but a compression spring having a spring fixing portion provided on the upper part can also be used.
The lock operation control for reducing the speed as described above is such that the latch lock 16 is lowered within one rotation of the rotating body 103, so that the latch lock 16 after the top dead center (the highest point) is exceeded. Holding power can be increased or decreased.

Next, another embodiment will be described. In the present embodiment, only the lock operation control unit is changed from the configurations described above with reference to FIGS. 3 to 10, and the configuration other than the lock operation control unit is the same as the previous description, and redundant description is omitted. To do. Hereinafter, the lock operation control unit will be described with reference to the drawings.
As shown in FIG. 11, the lock operation control unit 110 is a rotation mechanism, and includes a coupling body 111, a rotation support base 112, a rotation body 113, and a rotation spring 114.
The coupling body 111 is provided on the side surface of one end so that the roller 111a can rotate freely. The other end of the connecting body 111 is connected and fixed to the latch lock 16 of the locking device 10, and the connecting body 111 moves up and down together with the latch lock 16 of the locking device 10. The guide tube 17 is formed with a long hole portion 17a with a part of the side surface cut away, and the coupling body 111 moves along the hole portion 17a. The roller 111 a of the coupling body 111 is set so as to come out from the hole 17 a of the guide tube 17.

The rotation support base 112 is fixed on the unit case 31 of the conversion device 30.
The rotating body 113 is a member having a cam surface 113 a and is provided so as to be rotatable with respect to the rotation support base 112. Since the cam surface 113a of the rotating body 113 comes into contact with the roller 111a of the descending connecting body 111, the rotating body 113 is guided to perform a predetermined rotation.
The rotation spring 114 is a specific example of the urging portion, and one end is supported by the unit case 31 of the conversion device 30 and the other end is supported at one point near the outer peripheral portion of the rotating body 113. The rotary spring 114 is biased so as to be pulled in the direction of arrow o.

  Next, the lock operation control by the lock operation control unit 110 will be described. Before the restraint of the conversion device 30, the state is as shown in FIG. In this case, the rotary spring 114 is extended to pull the rotary body 113 in the direction of arrow o, and the rotary body 113 is urged so that the cam surface 113a of the rotary body 113 and the roller 111a of the coupling body 111 come into contact with each other. Is in a state. While the coupling body 111 descends from the uppermost point to the lowermost point, the rotary spring 114 is in a state of applying a rotational force such that the rotary body 113 is pulled in the direction of the arrow o and the rotary body 113 rotates clockwise. The cam surface 113a of the rotating body 113 is in contact with the roller 111a on the lower side, and the coupling body 111 is in a state where the roller 111a is lifted upward by the force from the cam surface 113.

Subsequently, it is assumed that the restraining operation is started. During the restraining operation, when the moving body 111 descends from the uppermost point to a predetermined height, the cam surface 113a of the rotating body 113 comes into contact with the roller 111a so that the reaction force from the rotating body 113 is increased. Is transmitted to the latch lock 16, and thus the locking operation control is performed to suppress the lowering of the coupling body 111 and reduce the falling speed of the latch lock 16. Such lock operation control is applied until the cam surface 113a of the rotating body 113 reaches the boundary point between the upper outer peripheral surface and the lower outer peripheral surface of the roller 111a. The height at which the boundary point and the cam surface are in contact with each other is a predetermined height.
Further, when the connecting body 111 is lowered from the predetermined height to the lowest point, the cam surface 113a of the rotating body 113 comes into contact with the upper side of the roller 111a so as to hold the lowered state of the connecting body 111.

  Then, the locking operation is finished and a restrained state is established. The cam surface 113a of the rotating body 113 comes into contact with the roller 111a so as to be pushed down from above, and the lowered state of the connecting body 111 is maintained. For example, if the contact is made in the vicinity of the boundary point, the biasing force at this time is a small force in the vertical direction, and the descending force is small. Therefore, most of the holding force is a value set by the lock spring 15. In addition, the reverse operation occurs when unlocking, and in particular, the connecting body 111 is urged to be raised upward, but the downward force by the lock spring 15 is not exceeded, and an impact is generated even when unlocking. There is no. The lock operation control is performed in this way.

  Such a lock operation control unit can achieve the same effects as described above. In addition, it is advantageous in terms of cost because it eliminates the need for gear formation. It is good also as a sliding door opening / closing apparatus for vehicles which employ | adopted such a lock operation control part.

Next, another embodiment will be described. In the present embodiment, only the lock operation control unit is changed from the configurations described above with reference to FIGS. 3 to 10, and the configuration other than the lock operation control unit is the same as the previous description, and redundant description is omitted. To do. Hereinafter, the lock operation control unit will be described with reference to the drawings.
As shown in FIG. 12, the lock operation control unit 120 is a rotation mechanism, and includes a pin 121, a rotating body 122, a rotation support base 123, and a rotation spring 124.
The pin 121 is provided on the latch lock 16.
The rotating body 122 is an L-shaped member and is provided so as to be rotatable with respect to the rotation support base 123. The other end of the rotating body 122 is loosely supported by a latch lock 16 of the locking device 10 via a pin, and the rotating body 122 rotates according to the vertical movement of the latching lock 16 of the locking device 10. The guide cylinder 17 is formed with a long hole portion 17a with a part of the side surface cut away, and the rotating body 122 moves along the hole portion 17a. The distal end of the rotating body 122 is set so as to come out from the hole 17 a of the guide cylinder 17.

The rotation support base 123 is fixed on the unit case 31 of the conversion device 30.
The rotation spring 124 is a specific example of the urging portion, and one end is supported by the unit case 31 of the conversion device 30 and the other end is supported by one point of the L-shaped tip of the rotating body 122. The rotary spring 124 is biased so as to be pulled in the direction of the arrow p.

  Next, the lock operation control by the lock operation control unit 120 will be described. Before the conversion device 30 is restrained, the state is as shown in FIG. In this case, the rotary spring 124 is in a state of applying a rotational force to the rotating body 122, and the rotating body 122 is applied with a reaction force in the upward direction. A reaction force is applied to the latch lock 16 upward via the rotating body 122.

During the restraining operation, the reaction force of the rotating body 122 is transmitted to the latch lock 16, so that the lock operation control for reducing the falling speed of the latch lock 16 is performed. Such lock operation control is applied until the support point of the rotary spring 124 on the rotating body 122 reaches the top dead center (the highest point).
Then, the lock operation ends after a while after the support point of the rotary spring 124 exceeds the top dead center (the highest point). From the time when the support point exceeds the top dead center (the highest point) until the end of the locking operation, the latch lock 16 is urged downward, and the state shifts to a fixed state in which a holding force is applied. However, since this support point is just after the top dead center (the highest point), the urging force at this time is a small force in the vertical direction, and the holding force is reduced. Therefore, most of the holding force is a value set by the lock spring 15. Note that the holding force may be increased by rotating the support point beyond the top dead center (the highest point) by about a half turn. The holding force is appropriately selected. Then, the operation is reversed when unlocked, and in particular, the latch lock 16 is urged to rise upward via the rotating body 122. However, the downward force by the lock spring 15 is not exceeded, and the unlocking is not performed. But there is no impact. The lock operation control is performed in this way.

  Such a lock operation control unit can achieve the same effects as described above. In addition, it eliminates the need for gear formation and cam formation, which is advantageous in terms of cost. It is good also as a sliding door opening / closing apparatus for vehicles which employ | adopted such a lock operation control part.

Next, another embodiment will be described. In the present embodiment, only the lock operation control unit is changed from the configurations described above with reference to FIGS. 3 to 10, and the configuration other than the lock operation control unit is the same as the previous description, and redundant description is omitted. To do. Hereinafter, the lock operation control unit will be described with reference to the drawings.
As shown in FIG. 13, the lock operation control unit 130 is a rotation mechanism, and includes a rotation body 131, a link body 132, a rotation support base 133, and a rotation spring 134.
The rotating body 131 is a rod-shaped member, and one end thereof is pivotally supported on the latch lock 16 of the locking device 10 via a pin. The guide tube 17 is formed with a long hole portion 17a with a part of the side surface cut away, and the rotating body 131 moves along the hole portion 17a. The other end of the rotating body 131 is set so as to come out from the hole 17a of the guide cylinder 17.
One end of the link body 132 is provided so as to be rotatable with respect to the rotation support base 133, and the rotation body 131 is pivotally supported at the other end.

The rotation support base 133 is fixed on the unit case 31 of the conversion device 30.
The rotation spring 134 is a specific example of the urging unit, and one end is supported by the unit case 31 of the conversion device 30 and the other end is supported by the other end of the rotating body 131. The rotary spring 134 is biased so as to be pulled in the direction of the arrow q.

  A link mechanism is constituted by such a rotating body 131 and the link body 132, and the rotating body 131 and the link body 132 rotate according to the vertical movement of the latch lock 16 of the locking device 10. In this link mechanism, the behavior of the fulcrum of the rotary spring 134 is specifically designed.

  Next, the lock operation control by the lock operation control unit 130 will be described. Before the conversion device 30 is restrained, the state is as shown in FIG. In this case, the rotating spring 134 is in a state of applying a rotational force to the rotating body 131, and the rotating body 131 is applied with a reaction force in the upward direction. A reaction force is applied to the latch lock 16 upward via the rotating body 131.

During the restraining operation, the reaction force of the rotating body 131 is transmitted to the latch lock 16, so that the lock operation control for reducing the falling speed of the latch lock 16 is performed. Such lock operation control is applied until the support point of the rotary spring 134 on the rotating body 131 reaches the top dead center (the highest point).
Then, the locking operation is finished after a while after the support point of the rotary spring 134 exceeds the top dead center (the highest point). From the time when the support point exceeds the top dead center (the highest point) until the lock operation is completed, the latch lock 16 is urged downward, and the state shifts to a fixed state where a holding force is applied. However, since this support point is just after the top dead center (the highest point), the urging force at this time is a small force in the vertical direction, and the holding force is reduced. Therefore, most of the holding force is a value set by the lock spring 15. Note that the holding force may be increased by rotating the support point beyond the top dead center (the highest point) by about a half turn. The holding force is appropriately selected. When the unlocking operation is performed, the reverse operation is performed. In particular, the latch lock 16 is urged to rise upward via the rotating body 131. However, the unlocking force does not exceed the downward force of the lock spring 15, and the unlocking operation is performed. But there is no impact. The lock operation control is performed in this way.

  Such a lock operation control unit can achieve the same effects as described above. This eliminates the need for gear formation and cam formation, which is advantageous in terms of cost. It is good also as a sliding door opening / closing apparatus for vehicles which employ | adopted such a lock operation control part.

Next, another embodiment will be described. In the present embodiment, only the lock operation control unit is changed from the configurations described above with reference to FIGS. 3 to 10, and the configuration other than the lock operation control unit is the same as the previous description, and redundant description is omitted. To do. Hereinafter, the lock operation control unit will be described with reference to the drawings.
As shown in FIG. 14, the lock operation control unit 140 is a slide mechanism, and includes a connecting body 141, a slide part 142, a support base 143, a slide guide 144, and a spring 145.

  The coupling body 141 is provided on the side surface of one end so that the roller 141a can rotate freely. The other end of the connecting body 141 is connected and fixed to a latch lock 16 of the locking device, and the connecting body 141 moves up and down together with the latch lock 16 of the locking device 10. The guide tube 17 is formed with a long hole portion 17a with a partly cut side surface, and the connecting body 141 moves along the hole portion 17a. The roller 141a of the coupling body 141 is set so as to come out from the hole 17a of the guide tube 17.

  The slide part 142 is a member having a cam surface 142 a and is provided so as to be movable in the horizontal direction with respect to the support base 143. The cam surface 142a of the slide portion 142 abuts on the roller 141a of the descending connecting body 141, and the connecting body 141 is guided by the cam surface 142a to perform a predetermined movement.

The support base 143 is fixed on the unit case 31.
The slide guide 144 is provided on the support base 143, and supports the slide part 142 so as to move in the horizontal direction. In addition, it is good also as a structure which eliminates this slide guide 144 and moves the slide part 142 on the support stand 143 directly.
The spring 145 is a specific example of the urging portion, and one end is supported by the support base 143 and the other end is supported by the slide portion 142. The spring 145 biases the slide portion 142 so as to push it toward the connecting body 141 in the direction of arrow r.

  Next, the lock operation control by the lock operation control unit 140 will be described. Before the restraint of the conversion device 30, the state is as shown in FIG. In this case, the spring 145 imparts a moving force in the direction of the arrow r to the slide portion 142, imparts a lifting force to the roller 141a via the cam surface 142a, and imparts a lifting force to the coupling body 141, The coupling body 141 is applied with a reaction force in the upward direction. The latch lock 16 is applied with a reaction force upward via the connecting body 141.

  During the restraining operation, the reaction force of the coupling body 141 is transmitted to the latch lock 16, so that the lock operation control for reducing the falling speed of the latch lock 16 is performed. Such lock operation control is applied until the cam surface 142a of the slide portion 142 reaches a boundary point between the upper outer peripheral surface and the lower outer peripheral surface of the roller 141a. Further, when the coupling body 141 descends beyond the boundary point, the cam surface 142a of the slide portion 142 abuts so as to be pushed down from the upper side of the roller 141a, and holds the lowered state of the coupling body 141. At this time, a small force is applied in the vertical direction to reduce the holding force. In this case, the holding force may be increased by inclining the cam surface. The holding force is appropriately selected. When the unlocking operation is performed, the reverse operation is performed. In particular, the latch lock 16 is urged to be lifted upward via the slide portion 142, but the downward force by the lock spring 15 is not exceeded, and the unlocking operation is performed. But there is no impact. The lock operation control is performed in this way.

  Such a lock operation control unit can achieve the same effects as described above. This eliminates the need for gear formation, which is advantageous in terms of cost. It is good also as a sliding door opening / closing apparatus for vehicles which employ | adopted such a lock operation control part.

  In addition, the contact surface of the cam surface 142a that contacts the roller 141a in a restrained state can be made vertical so that no urging force acts in the vertical direction of the roller 141a. In such a case, the latch lock 16 is restrained by the holding force set by the lock spring 15 in the restrained state, and the reaction force of the coupling body 141 is transmitted to the latch lock 16 during the restraining operation. Reduced lock operation control is performed.

  In addition, the vehicle sliding door opening / closing device is not limited to the vehicle sliding door opening / closing device having the two sliding doors described in the above embodiment, and may be a single sliding door. Moreover, even if it is a vehicle sliding door opening / closing apparatus which has two sliding doors, it is not limited to the sliding door opening / closing mechanism which consists of an actuator and a converter, Of course, you may use another sliding door opening / closing mechanism. In either case, the same effect can be obtained with respect to the same problem as in the above embodiment as long as the lock device having the lock operation mechanism is provided.

  The vehicle sliding door opening and closing device of the present invention has been described above. This vehicular sliding door opening and closing device has the following advantages over the prior art.

(1) In the sliding door opening and closing device for a vehicle of the present invention, in order to reduce the impact sound generated by the latch lowering at the time of locking, a reaction force against the lowering of the latch lock is given between the start of the latch lowering and immediately before the lowering. It is a thing. Thereby, the speed at the time of fall falls by the reaction force at the time of latch lock fall, and an impact sound reduces.
(2) Moreover, since the pushing force of the latch lock required at the time of locking is not reduced, the sliding door can be locked securely.

  The present invention can be used particularly for opening and closing sliding doors of train / train vehicles.

1: Vehicle sliding door opening / closing device 10: Lock device 11: Slide cam device 11a: Cam surface 11b: Guide surface 11c: Engaging portion 12: Magnet 13: Roller 14: Cam follower 14a: Top plate 15: Lock spring 16: Latch lock 17: Guide cylinder 17a: Long hole portion 20: Linear motor 21: Movable element 21a: Connecting body 22: Cover 23: Extrusion fitting 24: Retraction fitting 25: Compression spring 26: Headed pin 27: Guide fitting 28: Fixing fitting 30 : Conversion device 31: unit case 32: first rack 33: pinion 34: second rack 34 a: hole 35: connecting rod 36: screw portion 37: nut portion 38: nut portion 39: connection adjusting mechanism 40: sliding door rail 50 : Connecting portion 51: Connecting bracket 52: Door cart 53: Rail moving body 54: Linked body 55: Door cart 56: Connecting bracket 57: Buffer body 58: Buffer body 59: Spring 60: Connection portion 61: Connection fitting 62: Door wheel 63: Rail moving body 64: Connection member 65: Door wheel 66: Connection fitting 70: Sliding door 80: Sliding door 100: Locking operation control portion 101: Connection member 101a: Rack portion 102: Rotating support base 103: Rotating body 103a: Pinion part 104: Rotating spring 110: Locking operation control part 111: Linking body 111a: Roller 112: Rotating support base 113: Rotating body 113a: Cam surface 114: Rotating spring 120: Lock Operation control unit 121: Pin 122: Rotating body 122a: Groove 123: Rotation support table 124: Rotation spring 130: Locking operation control unit 131: Rotating body 132: Link body 133: Rotation support table 134: Rotating support table 140: Locking operation control Portion 141: Linked body 141a: Roller 142: Slide portion 142a: Cam surface 143: Support base 144: Slide guide 145: Spring

Claims (14)

Sliding doors,
An opening and closing device for opening and closing the sliding door;
A locking device that performs a mechanical restraining operation to stop the opening and closing operation by the opening and closing device with a latch lock;
A lock operation control unit that applies a reaction force to reduce the restraint speed by the latch lock when performing the mechanical restraint operation of the lock device, and that imparts a holding force during the mechanical restraint;
A sliding door opening and closing device for a vehicle, comprising: The sliding door opening and closing device for a vehicle according to claim 1,
The locking operation control unit is
A rotation support;
A connecting body having a rack portion and moving up and down together with the latch lock;
A rotating body that is rotatably supported by the rotation support base and has a pinion portion that meshes with a rack portion of the connecting plate;
An urging portion to which one end is attached at a predetermined distance from the rotation center of the rotating body;
And the rotating body that rotates by the engagement of the rack part and the pinion part as the connecting body descends,
Until one end of the urging portion reaches top dead center due to rotational movement, the urging portion is extended and a force in the opposite direction to the rotation of the rotating body is applied to suppress the lowering of the connecting body, After one end of the urging portion exceeds the top dead center due to rotational movement, the urging portion is shortened and a forward force is applied to the rotation of the rotating body to maintain the lowered state of the connecting body. A sliding door opening and closing device for a vehicle. The sliding door opening and closing device for a vehicle according to claim 1,
The locking operation control unit is
A rotation support;
A coupling body having a roller and moving up and down together with the latch lock;
A rotating body that is rotatably supported with respect to the rotation support base and has a cam surface that comes into contact with a roller of the coupling body;
An urging portion to which one end is attached at a predetermined distance from the rotation center of the rotating body;
The rotating body that rotates when the roller pushes the cam surface as the connecting body descends,
The rotating body is urged by the extending urging portion so that the cam surface comes into contact with the roller, and when the connecting body is lowered from the uppermost point to a predetermined height, the cam surface of the rotating body is below the roller. The lowering of the connecting body is suppressed by pushing up from the upper side, and when the connecting body lowers from a predetermined height to the lowest point, the cam surface of the rotating body comes into contact with the upper side of the roller. A sliding door opening and closing device for a vehicle, wherein the lowering state of the connecting body is maintained. The sliding door opening and closing device for a vehicle according to claim 1,
The locking operation control unit is
A rotation support;
A pin provided in the latch lock;
A rotating body that is rotatably supported with respect to the rotation support base and has a groove in which the pin of the latch lock is loosely supported, and rotates according to the movement of the latch lock;
An urging portion to which one end is attached at a predetermined distance from the rotation center of the rotating body;
And the rotating body that rotates when the pin of the latch lock pushes in the groove as the latch lock is lowered,
Until one end of the urging portion reaches the top dead center due to rotational movement, the urging portion is extended and a force in the reverse direction to the rotation of the rotating body is applied, and the latch lock is lowered through the pin. In addition, after one end of the urging portion exceeds the top dead center due to rotational movement, a forward force is applied to the rotation of the rotating body, and the lowered state of the latch lock is maintained via the pin. A sliding door opening and closing device for a vehicle. The sliding door opening and closing device for a vehicle according to claim 1,
The locking operation control unit is
A rotation support;
A rotating body rotatably supported by the latch lock;
A link body that is rotatably supported with respect to the rotation support base, and that supports the rotation body in another place.
An urging portion having one end attached to the rotating body at a predetermined distance from the rotation center of the link body;
The rotating body rotating while being guided by the link body as the latch lock is lowered,
Until one end of the urging portion reaches top dead center due to rotational movement, the urging portion is extended to apply a force in the opposite direction to the rotation of the rotating body to suppress the lowering of the latch lock, The sliding door opening and closing for vehicles is characterized in that after the one end of the urging portion exceeds the top dead center due to rotational movement, a forward force is applied to the rotation of the rotating body to maintain the lowered state of the latch lock. apparatus. The sliding door opening and closing device for a vehicle according to claim 1,
The locking operation control unit is
A support base;
A coupling body having a roller and moving up and down together with the latch lock;
A slide portion that is supported so as to be horizontally movable with respect to the support base and has a cam surface that comes into contact with a roller of the coupling body;
A biasing portion that biases the cam surface of the slide portion so as to contact the roller;
The slide part that moves horizontally when the roller pushes the cam surface as the connecting body descends,
During the lowering of the connecting body, the drag force from the cam surface of the slide portion is applied with a force in the opposite direction to the lowering of the connecting body to suppress the lowering of the connecting body, and when the connecting body is in the lowered state, A sliding door opening and closing device for a vehicle, wherein a drag force from a cam surface of a slide portion is applied with a forward force against the lowering of the connecting body to hold the lowering state of the connecting body. In the vehicle sliding door opening and closing device according to any one of claims 1 to 6,
Have two sliding doors,
The switchgear is
An actuator having a mover for supplying an opening / closing driving force for opening / closing one of the two sliding doors;
A conversion device that converts an opening / closing driving force supplied by the mover of the actuator in a reverse direction and supplies an opening / closing driving force for opening / closing the other sliding door of the two sliding doors,
The lock device is disposed between the actuator and the conversion device, converts the movement of the mover of the actuator into a mechanical restraining operation of the conversion device while receiving a reaction force from the lock operation control unit, The vehicle is characterized by maintaining the restraint in a state where a holding force is applied by the lock operation control unit at the time of mechanical restraint, and performing the mechanical restraint operation by stopping the conversion operation by the conversion device by the latch lock. Sliding door opening and closing device. The vehicle sliding door opening and closing device according to claim 7,
The actuator is
An extrusion fitting attached to the mover of the actuator;
Retractable metal fittings attached to the actuator mover;
And also
The locking device is
A slide cam device provided to be movable in the substantially horizontal direction;
A cam follower that moves up and down in accordance with the sliding motion of the slide cam device;
A lock spring that applies an urging force such that the latch lock moves in a direction of restraining the conversion device;
With
The latch lock is adapted to restrain the conversion device according to the vertical movement of the cam follower,
When the two sliding doors are closed and the push-out fitting presses the slide cam device according to the movement of the mover of the actuator, the cam follower and the cam follower according to the slide operation of the slide cam device, The latch lock is lowered by the urging force of the lock spring while receiving the reaction force from the lock operation control unit, and then the converter device is applied with the urging force of the lock spring and the holding force of the lock operation control unit being applied. Restrained,
When the two sliding doors are closed and the pull-in fitting pulls the slide cam device according to the movement of the actuator mover, the cam follower and the cam follower according to the slide operation of the slide cam device, The sliding door opening and closing device for a vehicle, wherein the latch lock is lifted against an urging force of the lock spring and a holding force of the lock operation control unit to release the restraint of the conversion device. The sliding door opening and closing device for a vehicle according to claim 8,
At least one sliding door rail attached to the vehicle body;
At least two rail moving bodies movably attached along the sliding door rail;
With
The sliding door opening and closing device for a vehicle, wherein the two sliding doors are respectively attached to the rail moving body. The sliding door opening and closing device for a vehicle according to claim 9,
Comprising a buffer for buffering the opening / closing driving force supplied from the mover of the actuator to the rail moving body;
The shock absorber is a sliding door opening and closing device for a vehicle, wherein the two sliding doors are kept closed over a predetermined distance even when the mover of the actuator moves. The vehicle sliding door opening and closing device according to any one of claims 8 to 10,
A sliding door opening and closing device for a vehicle, comprising a magnet stopper that holds the slide cam device by suction and stops it at a predetermined position. The vehicle sliding door opening and closing device according to any one of claims 8 to 11,
The converter is
A body having two substantially parallel surfaces;
Two racks movably attached so that teeth are opposed to each other on two substantially parallel surfaces of the main body;
One pinion meshing with the two racks;
With
The actuator mover supplies an opening / closing driving force to one of the two racks to rotate the pinion, and the other rack of the two racks opens / closes to the other sliding door. A sliding door opening and closing device for a vehicle characterized by supplying force. The vehicle sliding door opening and closing device according to any one of claims 8 to 12,
A sliding door opening and closing device for a vehicle, comprising: a connecting rod that transmits an opening and closing driving force supplied by a mover of the actuator to the conversion device. The sliding door opening and closing device for a vehicle according to claim 13,
A sliding door opening and closing device for a vehicle, comprising a connection adjusting mechanism for connecting the connecting rods while adjusting a connecting position.

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