JP7445063B2 - Door lock devices, door lock systems, and door control devices - Google Patents

Description

The present invention relates to a door lock device that locks a door in a closed state, a door lock system that includes the door lock device, and a door control device that has a lock portion that locks a door in a closed state.

Railway vehicles have automatic doors (see Patent Document 1). This automatic door has cushion rubber attached to the door tip. Further, this automatic door has an opening/closing part that operates the door to open and close the door opening (passenger entrance) and a locking part that locks the door in a closed state.

Automatic doors for railway vehicles are required to have a function (locking function) that allows the doors to close and lock without leaving any gaps at the door edge. In addition, this automatic door has a system that detects when a foreign object becomes stuck in the door and prevents the door from closing and locking (so-called door jamming condition) and interrupts the door closing operation. Functions such as door jamming detection function are also required.

Patent No. 5886859

Here, there are individual differences in the softness (hardness) and shape of the cushion rubber, and there are variations in the mounting position of the cushion rubber. Therefore, even if a door to which such cushion rubber is attached is simply attached to a railway vehicle, the above-mentioned locking function and door jamming detection function may not be properly obtained. For this reason, in the above-mentioned automatic door, after the door, the opening/closing part, and the locking part are attached to the railway vehicle, work is performed to adjust the mounting position of the door so that both the locking function and the door jamming detection function can be obtained. Since such adjustment work is complicated, there is a need to perform the adjustment work with a high degree of freedom in order to simplify it. In addition, it is also required to perform the adjustment work with a high degree of freedom in automatic doors that do not have cushion rubber attached to the door edge, such as automatic doors installed in buildings.

The present invention has been made in view of such circumstances, and an object thereof is to provide a door lock device, a door lock system, and a door control device that can perform adjustment work with a high degree of freedom. .

A door lock device for solving the above problems includes: a lock part that locks the door so as to keep the door opening closed; a drive part that generates a driving force so that the lock part locks; and a drive part that generates a driving force so that the lock part locks. and a changing part that changes the driving force of the part.

According to the above configuration, even though the door should not be locked by the lock part (the door jammed state), the door is locked by the lock part. In this case, the driving force for driving the locking portion by the driving portion can be reduced to prevent the locked state from occurring. Furthermore, if the door is caught in a situation where the door should be in the locked state, the driving force for driving the locking portion can be increased to bring the door into the locked state. According to the above configuration, the adjustment work of the door lock device can be performed not only by adjusting the mounting position of the door, but also by changing the driving force that drives the lock part as described above. . Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

A door lock device for solving the above problems includes a lock part that locks the door so as to maintain the door opening in a closed state, a storage part that stores set values in a rewritable manner based on an external signal, and the lock part that locks the door so as to keep the door opening closed. and a drive section that applies a driving force to the lock section according to a set value stored in the storage section so that the lock section is locked.

According to the above configuration, when the door is locked by the lock unit even though the door should be in the locked state, the drive that drives the lock unit by rewriting the set value The force can be reduced to avoid locking. Additionally, if the door is stuck even though it should be in the locked state, the setting value can be rewritten to increase the driving force that drives the locking unit, so that the locked state can be achieved. be able to. According to the above configuration, the adjustment work of the door lock device is not only performed by adjusting the mounting position of the door, but also by changing the driving force that drives the lock part by rewriting the setting value as described above. can also be done. Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

A door lock device for solving the above problems includes a lock part that locks the door to maintain the door opening in a closed state, and a lock part that locks when the door is in the closed state of the door opening. The driving device includes a driving section that generates a driving force such that the driving force is increased, and a limiting section that limits the driving force of the driving section.

According to the above structure, when the door is locked by the locking part even though the door should be in the jammed state, the locking part is stopped by restricting the driving force by the restricting part. By reducing the driving force, it is possible to prevent the locking state from occurring. In addition, if the door is caught in a situation where it should be in the locked state, the driving force for driving the locking part can be increased by relaxing the restriction on the driving force by the restricting part, and the locking state can be increased. You can make it so that According to the above configuration, the adjustment work of the door lock device can be performed not only by adjusting the mounting position of the door, but also by changing the driving force by limiting the driving force that drives the lock part as described above. It can also be done by Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

A door lock system for solving the above problems includes a plurality of the door lock devices, and uses a signal as the external signal to collectively rewrite the setting values stored in the storage units of the plurality of door lock devices. Equipped with an external device for output.

According to the above configuration, in a door lock system having a plurality of door lock devices, when the adjustment work of one door lock device is completed, the adjusted setting values stored in the same door lock device are transmitted through the external device. This can be reflected in the remaining door lock devices. Thereby, adjustment work for a plurality of door lock devices can be performed efficiently.

A door control device for solving the above problems includes: an opening/closing unit that operates the door to open and close the door opening; a locking unit that locks the door to maintain the door opening in a closed state; and a driving section that applies a driving force to the locking section and the locking section, and a changing section that changes the driving force of the driving section.

According to the above configuration, when the door is locked by the locking part even though the door should be in the jammed state, the driving force for driving the locking part is reduced. , it is possible to prevent it from becoming locked. Furthermore, if the door is caught in a situation where the door should be in the locked state, the driving force for driving the locking portion can be increased to bring the door into the locked state. According to the above configuration, the adjustment work of the door control device can be performed not only by adjusting the mounting position of the door, but also by changing the driving force that drives the lock part as described above. . Therefore, the adjustment work of the door control device can be performed with a high degree of freedom.

A method of adjusting a door lock device to solve the above problem includes a driving step of closing the door while holding a pinched object placed on the opening/closing path of the door between the tip of the door, and closing the door opening. The present invention further includes a setting step of setting a driving force by a driving part for locking a locking part for locking the door so as to maintain a state in which the door is held in place, depending on a state of the door when the door is in a jammed state.

According to the above adjustment method, if the door is locked by the locking part even though the door should be in the jammed state, the driving force for driving the locking part is reduced. You can prevent it from entering the locked state. Furthermore, if the door is caught in a situation where the door should be in the locked state, the driving force for driving the locking portion can be increased to bring the locking state into the locked state. Thus, according to the above adjustment method, the adjustment work of the door lock device can be performed not only by adjusting the mounting position of the door, but also by changing the driving force that drives the lock part as described above. can. Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

A method of adjusting a door lock device to solve the above problem is such that when the door is closed and driven, the door opening is closed with a first clipping object placed on the opening/closing path of the door being clipped at the door tip. a first detection step of detecting whether or not a lock unit that locks the door is in a locked state in which the door is locked, and it is detected in the first detection step that the lock unit is not in the locked state; In this case, the driving force of the lock section is increased until the lock state is detected in the first detection step, and then the detection in the first detection step is performed repeatedly, and the lock state is achieved. a first calculation step of determining the driving force of the lock when the door is detected; and a second clip that is thicker than the first clip and is placed on the opening/closing path of the door when the door is driven to close. a second detection step of detecting whether or not the locked state is reached with an object caught between the doors; and a second detection step when the locked state is detected in the second detection step; When it is detected that the locked state is not achieved by repeatedly reducing the driving force of the lock portion and then performing the detection in the second detection step until it is detected that the locked state is not achieved. and a second calculation step of determining the driving force of the lock portion.

According to the above adjustment method, if the relatively thin first object is caught in the door, the driving force that drives the lock portion is repeatedly increased until it becomes locked. By doing so, it is possible to determine the driving force of the lock portion suitable for locking the door. In addition, if the door becomes locked when a relatively thick second object is caught in the door, the door can be locked by repeatedly reducing the driving force that drives the lock until the object becomes stuck in the door. It is possible to determine the driving force of the lock portion suitable for preventing the locked state. Therefore, the adjustment work of the door lock device can be performed not only by adjusting the mounting position of the door, but also by adjusting the driving force that drives the lock portion as described above. Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

A method of adjusting a door lock device to solve the above problem is to adjust the thickness of the door lock device to confirm that the door is in the locked state by the lock portion that locks the door so as to maintain the door opening in the closed state. a driving step of driving the door closed so that a pinched object placed on the opening/closing path of the door is caught between the door end of the door; and a driving step of driving the door in an unlocked state in a closed position. and a setting step of increasing the driving force of the driving section that drives the locking section when the locking section is reached.

According to the above adjustment method, if the door is closed with an object of the thickness required to confirm that it is in the locked state (lock thickness) caught in the door edge, the lock part will not lock the door. The driving force for driving the locking part can be adjusted as desired. Therefore, the adjustment work of the door lock device can be performed not only by adjusting the mounting position of the door, but also by adjusting the driving force that drives the lock portion as described above. Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

A method for adjusting the door lock device to solve the above problem is to maintain the door opening in a closed state with the object placed on the opening/closing path of the door caught in the door when the door is closed and driven. a detection step of detecting whether or not the door is in a locked state by a lock unit that locks the door; The locking section when the locking state is detected by repeatedly increasing the driving force of the locking section and then performing the detection in the detecting step until the locking state is detected in the step. and a calculation step of determining the driving force.

According to the above adjustment method, if an object with a lock thickness is caught in the door and the object becomes stuck in the door, the driving force that repeatedly drives the lock portion until it becomes locked is increased. Accordingly, it is possible to determine the driving force of the lock portion suitable for locking the door. Therefore, the adjustment work of the door lock device can be performed not only by adjusting the mounting position of the door, but also by adjusting the driving force that drives the lock portion as described above. Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

A method for adjusting a door lock device to solve the above problem is to adjust the thickness of the door lock device to ensure that the door is not locked by the lock portion that locks the door so as to maintain the door opening in a closed state. a driving step of driving the door closed so that an object disposed on the opening/closing path of the door is held between the door end of the door; and a locking step in which the door is locked when the door is in a closed position. and a setting step of reducing the driving force of the driving part that drives the locking part when the locking part is in the state.

According to the above adjustment method, if the door is closed with an object of the thickness required to confirm the door jamming condition (door jamming thickness) caught in the door tip, the lock part will close the door. The driving force for driving the lock portion can be adjusted so that the lock is not locked. Therefore, the adjustment work of the door lock device can be performed not only by adjusting the mounting position of the door, but also by adjusting the driving force that drives the lock portion as described above. Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

A method for adjusting a door lock device to solve the above-mentioned problem is such that when the door is driven to close, an object placed on the opening/closing path of the door is caught in the door, and the door opening is closed. a detection step of detecting whether or not the door is in a locked state in which the door is locked by a lock unit that locks the door so as to maintain the door; When it is detected that the locked state is not achieved by repeatedly reducing the driving force of the lock portion and then performing the detection in the detecting step until it is detected that the locked state is not achieved in the detecting step. and a calculating step of determining the driving force of the lock portion.

According to the above adjustment method, if the door becomes locked when an object of the same thickness as the door is caught in the door, the driving force that drives the lock portion is repeatedly reduced until the door becomes stuck. By doing so, it is possible to determine the driving force of the lock portion suitable for preventing the door from being locked. Therefore, the adjustment work of the door lock device can be performed not only by adjusting the mounting position of the door, but also by adjusting the driving force that drives the lock portion as described above. Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

A method for adjusting a door lock device to solve the above problem includes a first step of setting the driving force by the adjustment method for one door lock device among the plurality of door lock devices; When setting the driving force using the adjustment method for another door lock device among the door lock devices, the driving force for the one door lock device that has already been set in the first step is set by adjusting the driving force for the other door lock device. a second step of setting the driving force for the door lock device; and a third step of setting the driving force for the other door lock device using the adjustment method.

According to the above adjustment method, the optimum value for the driving force of the lock portion obtained by the adjustment work of one door lock device can be reflected in other door lock devices to which the adjustment work is performed later. Thereby, the difference between the actual value and the optimum value of the driving force of the locking portion in other door lock devices can be made small in advance, so that the adjustment work of the door lock device can be performed efficiently.

According to the present invention, adjustment work can be performed with a high degree of freedom.

FIG. 1 is a side view of an embodiment of a door lock device in a railway vehicle and its surroundings. A schematic diagram showing the structure of a door lock device. FIG. 3 is a plan view of the locking mechanism in an unlocked state when the door body is open. FIG. 3 is a plan view of the locking mechanism in an unlocked state when the door body is closed. FIG. 3 is a plan view of the locking mechanism in a locked state. Graph showing the relationship between motor output torque and motor rotation phase. A side view showing a state where a foreign object is caught in the door. Flowchart showing the procedure for performing lock adjustment work. Flowchart showing the procedure for performing door jamming adjustment work. A side view showing a multi-contact switch. 1 is a schematic diagram showing a schematic configuration of a railway vehicle having a plurality of door lock devices. 7 is a flowchart showing a procedure for performing adjustment work according to another embodiment.

Hereinafter, one embodiment of a door lock device, a door control device, and a door lock system will be described.
As shown in FIG. 1, a door opening 21 (more specifically, a passenger entrance) of a railway vehicle (hereinafter simply referred to as a vehicle 20) has a pair of double sliding doors that can be opened and closed. Door bodies 22R and 22L are provided. A guide rail 23 is provided above the door opening 21 and extends in the front-rear direction of the vehicle 20 (left-right direction in FIG. 1). A hanger 24R and a hanger 24L are attached to the guide rail 23 so as to be movable in the front-back direction. The hanger 24R and the hanger 24L have a plurality of door rollers 25 built therein, and are attached to the guide rail 23 via the door rollers 25. A door body 22R is fixed to the hanger 24R in a hanging manner, and a door body 22L is fixed to the hanger 24L in a hanging manner. A cushion rubber 26 made of a soft synthetic rubber material is attached to the tip of each door body 22R, 22L. When the door bodies 22R, 22L are in a closed state (the state shown in FIG. 1), the cushion rubbers 26 abut each other.

As shown in FIGS. 1 and 2, the vehicle 20 includes an opening/closing unit 30 that operates the door bodies 22R and 22L to open and close the door opening 21, and a door body that operates the door bodies 22R and 22L to open and close the door opening 21. A lock section 40 that locks 22R and 22L, and a motor 50 (FIG. 2) as a drive section that generates a driving force that drives the opening/closing section 30 and the lock section 40 are attached.

An electronic control device 51 configured with, for example, a microcomputer is attached to the vehicle 20. Further, a rotational phase sensor 52 is provided near the motor 50 to detect the rotational phase of the motor 50 (motor rotational phase RM). This motor rotation phase RM is detected as an index value of the movement position of the door bodies 22R, 22L or an index value of the operating state of the lock portion 40. Further, a close sensor 53 is provided between the hangers 24R and 24L to detect that the door bodies 22R and 22L are closed when the distance between the hangers 24R and 24L becomes short. Further, the vehicle 20 is provided with a lock sensor 54 that detects that the lock portion 40 is in the locked state based on the operating state of the lock portion 40 (specifically, the planetary carrier of the planetary gear mechanism described later). There is.

The electronic control device 51 receives detection signals from various sensors 52 to 54. The electronic control device 51 performs various calculations based on the output signals of various sensors, and controls the operation of the motor 50 based on the calculation results. The electronic control device 51 has a nonvolatile memory 51A (specifically, an EEPROM) as a storage section. This memory 51A stores a memory value (set value VB) regarding the output torque of the motor 50. The electronic control device 51 causes the motor 50 to generate a driving force according to the set value VB so that the lock portion 40 is locked. Further, the electronic control device 51 can be connected to an external device 27 (specifically, a notebook computer). Then, by operating the external device 27 while connected to the electronic control device 51 and outputting an external signal, it is possible to rewrite the set value VB in the memory 51A. Therefore, the electronic control device 51 functions as a changing unit by changing the set value VB of the memory 51A.

Hereinafter, the structure of the opening/closing section 30 will be explained in detail.
The opening/closing section 30 has a pair of rack gears 31R and 31L extending in the front-rear direction (left-right direction in FIG. 1). These rack gears 31R, 31L are mounted above the door opening 21 in the vehicle 20 so as to be movable back and forth in the front and back direction. The rack gear 31R is integrally provided with an arm portion 32R (FIG. 1) that protrudes upward, and one end (the right end portion in FIG. 1) of the rack gear 31R is fixed to the upper portion of the arm portion 32R. Further, the rack gear 31L is integrally provided with an arm portion 32L that projects upward, and one end (the left end portion in FIG. 1) of the rack gear 31L is fixed to the upper portion of the arm portion 32L.

The opening/closing section 30 has a planetary gear mechanism 33. A sun gear 34 of the planetary gear mechanism 33 is connected to a motor 50. The outer gear 35 of the planetary gear mechanism 33 is arranged so as to be sandwiched between a pair of rack gears 31R and 31L. Specifically, one rack gear 31R is arranged below the outer gear 35 and meshes with the outer gear 35, and the other rack gear 31L is arranged above the outer gear 35 and meshes with the outer gear 35.

In the opening/closing section 30, the outer gear 35 of the planetary gear mechanism 33 and the rack gears 31R and 31L constitute a rack and pinion. When the outer gear 35 rotates in the closing direction (clockwise direction in FIG. 1) through the drive of the motor 50, the door bodies 22R and 22L (more specifically, the hangers 24R and 24L) move toward each other, and the door The main bodies 22R and 22L are driven to close. On the other hand, when the outer gear 35 rotates in the opening direction (counterclockwise in FIG. 1) through the drive of the motor 50, the door bodies 22R, 22L move in a direction away from each other, and the door bodies 22R, 22L are driven to open. Ru.

Hereinafter, the structure of the lock part 40 will be explained in detail.
As shown in FIG. 2, the lock portion 40 has a lock slider 41. As shown in FIG. The lock slider 41 is for operating a lock mechanism 60, which will be described later. The lock slider 41 has a plate-shaped portion (plate-shaped portion 41A) that extends in the horizontal direction. The plate-shaped portion 41A of the lock slider 41 is provided below the lock mechanism 60 so as to be able to reciprocate in the front-back direction (left-right direction in FIG. 2) with respect to the lock mechanism 60. This lock slider 41 is connected to the planetary gear 36 (specifically, the planetary carrier 36A) of the planetary gear mechanism 33 via a connection mechanism 43. The coupling mechanism 43 includes a converting section 43A that has a gear mechanism and converts the rotational motion of the planetary carrier 36A into a linear motion in the front-back direction, a traction member 43B for pulling the lock slider 41 in the front-back direction, and a traction member 43B for pulling the lock slider 41 in the front-back direction. The lock slider 41 includes a spring 43C provided between the lock slider 41 and the lock slider 41.

When the planetary carrier 36A rotates in the locking direction (counterclockwise in FIG. 2), the lock slider 41 moves in the locking direction (rightward in FIG. 2). On the other hand, when the planetary carrier 36A rotates in the unlocking direction (clockwise in FIG. 2), the lock slider 41 moves in the unlocking direction (leftward in FIG. 2).

A cylindrical actuation pin 44 is integrally provided on the upper surface of the plate-like portion 41A of the lock slider 41. This actuating pin 44 is engaged with a locking mechanism 60. When the lock slider 41 moves in the front-back direction, the operating pin 44 also moves in the front-back direction, and the lock mechanism 60 comes to operate. Specifically, when the lock slider 41 moves from the unlocked position in the locking direction (to the right in FIG. 2), the locking mechanism 60 is activated by the operation of the operating pin 44, and the locking mechanism 60 is placed in the locked state. Become. On the other hand, when the lock slider 41 moves from the locked position in the unlocking direction (to the left in FIG. 2), the locking mechanism 60 is activated by the operation of the actuating pin 44, and the locking mechanism 60 enters the unlocked state.

The structure of the lock mechanism 60 will be described in detail below.
The lock mechanism 60 is attached above the plate-like portion 41A of the lock slider 41 so as to be adjacent to the lock slider 41. The hanger 24R integrated with the door body 22R is integrally provided with a cylindrical lock protrusion 28R that protrudes upward, and the hanger 24L integrated with the door body 22L has a cylindrical lock protrusion 28L that protrudes upward. are integrated. The locking mechanism 60 closes the door bodies 22R, 22L by gripping the locking convex portions 28R, 28L of each hanger 24R, 24L so as to draw them toward each other. lock in position).

As shown in FIGS. 3 to 5, the locking mechanism 60 has a link portion 63 configured by three link members (operating member 61, connecting links 62R, 62L).
The operating member 61 is a link member that is operated when the lock mechanism 60 is activated. This operating member 61 is arranged at the center in the front-rear direction, and is rotatably supported by a base member 65 of the locking mechanism 60 via a connecting pin 64. The operating member 61 has a bifurcated engaging portion 61A extending in the horizontal direction. The actuating pin 44 of the lock slider 41 is fitted into this engaging portion 61A. When the operating pin 44 moves in the front-back direction, the operating member 61 rotates.

The connecting link 62R is connected to one end (right end in FIG. 3) of the operating member 61 in the front-rear direction so as to be swingable in the horizontal direction. An engagement pin 67R that projects upward is attached to the swing end 66R of the connection link 62R. An elongated guide groove 68R extending in the front-rear direction is formed in the base member 65 of the locking mechanism 60 at a position facing the engagement pin 67R. The distal end portion of the engagement pin 67R of the connecting link 62R is fitted into the guide groove 68R of the base member 65. Therefore, the engagement pin 67R is guided in the front-rear direction by the guide groove 68R, so that the swing end 66R of the connecting link 62R reciprocates in the front-rear direction.

The connecting link 62L is connected to one end (left end in FIG. 3) of the operating member 61 in the front-rear direction so as to be swingable in the horizontal direction. An engagement pin 67L that protrudes upward is attached to the swing end 66L of the connection link 62L. An elongated guide groove 68L extending in the front-rear direction is formed in the base member 65 of the locking mechanism 60 at a position facing the engagement pin 67L. The distal end portion of the engagement pin 67L of the connecting link 62L is fitted into the guide groove 68L of the base member 65. Therefore, the engagement pin 67L is guided in the front-rear direction by the guide groove 68L, so that the swing end 66L of the connecting link 62L reciprocates in the front-rear direction.

The link section 63 operates as follows.
First, when the locking mechanism 60 is in the unlocked state (the state shown in FIG. 3), the rotational position of the operating member 61 is at a virtual position connecting the swinging center CR of the connecting link 62R and the swinging center CL of the connecting link 62L. The position is such that the line VL intersects with the front-rear direction (left-right direction in FIG. 3). As a result, the connecting links 62R and 62L are in a state where they are drawn toward the operating member 61 side. As a result, the moving positions of the engagement pins 67R, 67L become the positions closest to the operating member 61 in the guide grooves 68R, 68L.

On the other hand, when the lock mechanism 60 is in the locked state (the state shown in FIG. 5), the rotational position of the operating member 61 is such that the virtual line VL is parallel to the front-rear direction. The rotational position of the operating member 61 is a position obtained by rotating the operating member 61 in one direction (clockwise direction) by a predetermined angle from the rotational position of the operating member 61 in the unlocked state (see FIG. 3). In this rotational position, the connecting links 62R, 62L are in a state of protruding away from the operating member 61. As a result, the moving positions of the engagement pins 67R, 67L become the furthest positions from the operating member 61 in the guide grooves 68R, 68L.

The locking mechanism 60 includes a gripping member 69R that grips the locking projection 28R of the hanger 24R, and a gripping member 69L that grips the locking projection 28L of the hanger 24L. The gripping member 69R is provided on one side of the link portion 63 in the front-rear direction (the right side in FIG. 3), and the grip member 69L is provided on the other side of the link portion 63 in the front-rear direction (left side in FIG. 3). These gripping members 69R, 69L are supported by the base member 65 so as to be rotatable in the horizontal direction. The gripping members 69R and 69L have shapes that are symmetrical with respect to a line extending in the width direction of the vehicle 20 (vertical direction in FIG. 3) as an axis of symmetry. These gripping members 69R and 69L both have a gripping portion 70 and a holding portion 71, which are cut out portions in the shape of an elongated hole. The locking mechanism 60 includes a spring 43C that connects the gripping members 69R and 69L.

FIG. 3 shows the locking mechanism 60 in a locked state when the door bodies 22R, 22L are open.
As shown in FIG. 3, at this time, due to the biasing force of the spring 43C, the distance between the gripping portions 70 of the gripping members 69R and 69L becomes wider as they move outward (upwards in FIG. 3). , 69L are held. Note that each of the gripping members 69R and 69L is such that when the door bodies 22R and 22L are driven to close and the locking projections 28R and 28L move in a direction toward each other, the locking projections 28R and 28L enter the inside of the gripping portion 70. It is located in a position that allows you to

Further, at this time, the holding portions 71 of the respective gripping members 69R, 69L are in a state where the distance becomes narrower as they go outward (upward in FIG. (in the direction perpendicular to the plane of the paper) with almost no overlap. Therefore, even if the motor 50 is driven in this state and a force is applied to move the lock slider 41 in the locking direction, the connecting links 62R, 62L will abut against the outer surfaces of the gripping members 69R, 69L, and the operation member 61 will be removed from the operating member 61. Movement of the connecting links 62R, 62L in the direction in which they are projected away from each other is restricted. As described above, in this embodiment, when the door bodies 22R, 22L are open, the link portion 63 does not operate, so the planetary carrier 36A does not substantially rotate in the locking direction, and the locking mechanism 60 does not operate.

FIG. 4 shows the lock mechanism 60 in an unlocked state when the door bodies 22R, 22L are closed.
When the door bodies 22R, 22L are driven to close, the lock protrusions 28R, 28L enter the gripping portions 70 of the gripping members 69R, 69L. At this time, each of the gripping members 69R, 69L is pressed by the lock protrusions 28R, 28L, and thereby rotates so as to hold the lock protrusions 28R, 28L against the biasing force of the spring 43C. As a result, as shown in FIG. 4, the distance between the gripping portions 70 of the gripping members 69R and 69L becomes narrower toward the outside (upward in FIG. 4). In this way, the lock protrusions 28R, 28L are gripped by the gripping members 69R, 69L (gripping state).

Further, at this time, the holding portions 71 of each of the gripping members 69R, 69L are both opened on the operation member 61 side and extended in the front-back direction, and most of them overlap with the guide grooves 68R, 68L in the vertical direction. become. That is, the state is such that the swinging ends 66R, 66L of the connecting links 62R, 62L can enter the holding portions 71 of the gripping members 69R, 69L. As described above, in this embodiment, when the door bodies 22R and 22L are closed, the link portion 63 can be operated, that is, the planetary carrier 36A is rotated in the locking direction to operate the locking mechanism 60. It becomes possible to do something.

FIG. 5 shows the lock mechanism 60 in a locked state when the door bodies 22R, 22L are closed.
When the motor 50 is driven to move the lock slider 41 in the locking direction in the gripping state (see FIG. 4), the operating member 61 rotates and the connecting links 62R, 62L protrude away from the operating member 61. be in a state of being As a result, as shown in FIG. 5, the swinging ends 66R, 66L of the connecting links 62R, 62L enter and fit into the holding portions 71 of the gripping members 69R, 69L (the state shown in FIG. 5). In this way, the connecting links 62R and 62L of the link portion 63 are inserted into the holding portions 71 of the gripping members 69R and 69L, thereby restricting the rotation of the gripping members 69R and 69L. As a result, the lock mechanism 60 enters a locked state in which the door bodies 22R and 22L are locked so as to maintain the door opening 21 in a closed state.

The operation control of the motor 50 when driving the door bodies 22R, 22L to close will be described below.
As shown in FIG. 6, when the door bodies 22R, 22L are driven to close, the output torque of the motor 50 is at a large value (large torque TA1). Note that the door fully open position PF is determined by the rotational phase of the motor 50 when the door bodies 22R, 22L are fully open. As a result, for a while after the closing drive of the door bodies 22R, 22L is started, the door bodies 22R, 22L are driven to close with a large driving force in order to quickly close the door bodies 22R, 22L.

Thereafter, when the motor rotation phase RM reaches the first closed position P1, the output torque of the motor 50 is gradually reduced until the motor rotation phase RM reaches the second closed position P2. Then, the output torque of the motor 50 is set to a small value (small torque TA2) from when the motor rotation phase RM reaches the second closed position P2 until it reaches the fully closed position PC. The fully closed position PC is the rotation of the motor 50 when the tips of the door bodies 22R and 22L (more specifically, the cushion rubber 26) are in contact with each other, unless a foreign object is caught between the tips of the door bodies 22R and 22L. The phase is determined. As a result, the output torque of the motor 50 is reduced just before the door ends of the door bodies 22R, 22L come into contact with each other, and the closing speed of the door bodies 22R, 22L is reduced, and the door ends come into contact with each other. There is.

When the motor rotation phase RM reaches the fully closed position PC, the output torque of the motor 50 is a value even smaller than the small torque TA2 (lock torque TB) until the motor rotation phase RM reaches the lock position PR. Set. Note that the period from when the motor rotation phase RM changes from the fully closed position PC to the locked position PR is the period during which the lock portion 40 operates. In this way, in this embodiment, the output torque of the motor 50 (lock torque TB) when the lock part 40 is activated is different from the output torque of the motor 50 (large torque TA1, small torque TA2). The reason for this will be explained below.

As shown in FIG. 7, even if a foreign object is caught between the door bodies 22R and 22L, the cushion rubber 26 at the door edge is crushed, causing the door bodies 22R and 22L (more specifically, the lock protrusions 28R and 28L) to be crushed. They become close to each other. As a result, the locking portion 40 is activated and enters the locked state (the state shown in FIG. 5).

However, at this time, due to the elastic force of the elastically deformed cushion rubber 26, each door body 22R, 22L (more specifically, the lock protrusions 28R, 28L) is urged in a direction (arrow F1 in FIG. 5) to move away from each other. It becomes like this. As a result, each gripping member 69R, 69L is biased in the direction of rotation (arrow F2 in FIG. 5), and as a result, the inner surface of the holding portion 71 of the gripping member 69R, 69L is pushed to the swinging end of the connecting link 62R, 62L. It comes to be pressed against the outer surfaces of 66R and 66L.

As the force (prying force) with which the inner surface of the holding portion 71 is pressed against the outer surface of the connecting links 62R, 62L increases, the force required to remove the connecting links 62R, 62L from the holding portion 71 increases, so that the locking mechanism The force required to bring 60 into the unlocked state also increases. Therefore, if the output torque of the motor 50 is increased when the locking part 40 is activated so that the locking part 40 is in the locked state even when a large foreign object is caught in the door, the foreign object will be removed from each door body 22R, 22L. The reaction force received by the lock portion 40 increases, and the prying force increases, making it difficult to bring the lock portion 40 into the unlocked state. Additionally, if the door bodies 22R, 22L are locked with a foreign object caught in the doorway, station platform staff may manually open the door bodies 22R, 22L to enable the removal of the foreign object. However, this task also becomes difficult. Based on this, in the present embodiment, the output torque of the motor 50 is reduced when the lock portion 40 is activated.

In this embodiment, a set value VA1 corresponding to the large torque TA1, a set value VA2 corresponding to the small torque TA2, and a set value VB corresponding to the lock torque TB are stored in the memory of the electronic control device 51. Based on these set values VA1, VA2, and VB, the operation of the motor 50 is controlled when the door bodies 22R and 22L are driven to close. The set value VB corresponding to the lock torque TB is stored in the memory 51A of the electronic control device 51, and can be rewritten by outputting an external signal through the operation of the external device 27 connected to the electronic control device 51. It is now possible.

In addition, when controlling the operation of the motor 50 when driving the door bodies 22R and 22L to close, a foreign object is caught in the door edge and the door bodies 22R and 22L cannot be locked in the closed state (so-called door jamming condition). Sometimes we try to detect this. Specifically, when the rotation of the motor 50 is stopped while the door bodies 22R, 22L are being driven to close, and the duration of the stoppage exceeds a predetermined time, it is detected that the door is stuck. Furthermore, when the rotation of the motor 50 is stopped while the locking section 40 is in operation and before the locking section 40 is in the locked state, it is also detected that the door is stuck. When the door jam condition is detected in this manner, operation control of the motor 50 (door jam release control) is executed to enable removal of foreign matter from the door tip. In the door jam release control of this embodiment, the drive of the motor 50 is stopped and the output torque is set to "0". In this embodiment, the locking state of the locking portion 40 means that the closing sensor 53 detects that the door bodies 22R, 22L are in the closed state, and the locking sensor 54 detects that the locking portion 40 is locked. The determination is made based on the fact that the condition is detected.

The door control device of this embodiment, which is composed of the opening/closing section 30, the locking section 40, the motor 50, the electronic control device 51, etc., has the ability to exhibit both the locking function and the door jamming detection function described below. Desired.

(Lock function) To confirm that the door bodies 22R and 22L are locked by the lock part 40, a clip 29A (see FIG. 7) with a lock thickness (10 mm in this embodiment) is placed at the door. When the door bodies 22R, 22L are driven to close in the sandwiched state, the lock portion 40 enters the locked state.

(Door jamming detection function) To confirm that the door is jammed, the door body 22R, 22L is closed and driven with the jamb 29B having the thickness of the door jamb (15 mm in this embodiment) being clamped at the door tip. In this case, the door jamming condition is detected without the lock part 40 being in the locked state.

Here, there are individual differences in the softness (hardness) and shape of the cushion rubber 26 attached to the door, and there are variations in the attachment position of the cushion rubber 26. Therefore, even if the door bodies 22R, 22L to which such cushion rubber 26 is attached are simply attached to the vehicle 20, the above-mentioned locking function and door jamming detection function may not be properly obtained. For this reason, in this embodiment, the operation mode of the door bodies 22R, 22L during closing operation is adjusted so that both the locking function and the door jamming detection function can be obtained.

In this work, first, the door bodies 22R and 22L having the cushion rubber 26, the opening/closing part 30, and the locking part 40 are attached to the vehicle 20. The door bodies 22R, 22L are attached to the vehicle 20 in a predetermined manner, specifically, in such a manner that the cushion rubbers 26 of the door tips abut each other if no foreign matter is caught in the door tips. Thereafter, the external device 27 is connected to the electronic control device 51. Then, in this state, a lock adjustment work to satisfy the "lock function" and a door jamming adjustment work to satisfy the "door jamming detection function" are performed. Note that in this embodiment, these adjustment operations correspond to a setting step for setting the driving force of the lock portion 40.

The lock adjustment work will be specifically explained below.
As shown in FIG. 8, in the lock adjustment work, first, a locking-thickness clip 29A is placed on the opening/closing path of the door bodies 22R, 22L (step S11). Thereafter, the closing drive of the door bodies 22R, 22L is started (step S12), and it is determined whether the lock portion 40 is in the locked state (step S13). If the locking section 40 is in the locked state (step S13: YES), it is assumed that the locking function is properly obtained, and this operation is ended (step S14).

On the other hand, if the lock portion 40 is not in the locked state (step S13: NO), that is, if the door is stuck, the output torque of the motor 50 is increased by a predetermined value (step S15). In this process, the setting value VB stored in the memory 51A of the electronic control unit 51 is rewritten to a value larger by a predetermined value α (=VB+α) through the operation of the external device 27. Thereby, thereafter, the output torque of the motor 50 when the lock portion 40 is activated increases by an amount corresponding to the predetermined value α. Therefore, the force that drives the lock slider 41 in the locking direction increases, and the force that inserts the swinging ends 66R, 66L of the respective connecting links 62R, 62L into the holding portions 71 of the gripping members 69R, 69L increases. In this way, the connecting links 62R, 62L are inserted into the holding portion 71, and the locking portion 40 is thereby placed in the locked state.

In this case (step S13: NO), the processes of steps S11 to S13 and S15 are repeatedly executed until it is determined that the locked state is reached in the process of step S13. Then, in the process of step S13, if it is determined that the lock unit 40 is in the locked state (step S13: YES), this process is ended (step S14).

In this embodiment, step S11 corresponds to a placement step and a first placement step, step S12 corresponds to a drive step, step S13 corresponds to a detection step and a first detection step, and steps S13 to S15 correspond to calculation steps. and corresponds to the first calculation step.

The door jamming adjustment work will be explained in detail below.
As shown in FIG. 9, in this door clip adjustment work, first, a clip 29B having a door clip thickness is placed on the opening/closing path of the door bodies 22R, 22L (step S21). Thereafter, the closing drive of the door bodies 22R and 22L is started (step S22), and it is determined whether or not the door is caught in the door (step S23). If the locking unit 40 becomes stuck in the door (step S23: YES), it is determined that the door trap detection function is properly obtained, and this process is ended (step S24).

On the other hand, if the door is not stuck (step S23: NO), that is, if the locked state is reached, the output torque of the motor 50 is decreased by a predetermined value (step S25). In this process, the setting value VB stored in the memory 51A of the electronic control unit 51 is rewritten to a value smaller by a predetermined value α (=VB−α) through the operation of the external device 27. Thereby, thereafter, the output torque of the motor 50 when the lock portion 40 is activated is reduced by an amount corresponding to the predetermined value α. Therefore, the force that drives the lock slider 41 in the locking direction becomes smaller, and the force that inserts the swinging ends 66R, 66L of each connecting link 62R, 62L into the holding part 71 of the gripping members 69R, 69L becomes smaller. In this way, it is possible to prevent the connecting links 62R, 62L from being inserted into the holding portion 71, and thereby to prevent the locking portion 40 from being locked.

In this case (step S23: NO), the processes of steps S21 to S23 and S25 are repeatedly executed until it is determined that the door is stuck in the process of step S23. Then, in the process of step S23, if it is determined that the lock part 40 is stuck in the door (step S23: YES), this process is ended (step S24).

In this embodiment, step S21 corresponds to a placement step and a second placement step, step S22 corresponds to a drive step, step S23 corresponds to a detection step and a second detection step, and steps S23 to S25 correspond to calculation steps. and corresponds to the second calculation step.

By performing such lock adjustment work and door jamming adjustment work, both the "lock function" and the "door jamming detection function" can be obtained.
Hereinafter, the effects of the door lock device of this embodiment will be explained.

In the lock adjustment work (see FIG. 8), if the door is stuck even though it should be in the locked state, the output torque of the motor 50 is changed by rewriting the set value VB in the memory 51A. By increasing the driving force for driving the lock portion 40, the lock portion 40 can be brought into a locked state.

Specifically, when it is detected that the lock section 40 is not in the locked state, the driving force of the lock section 40 is controlled by rewriting the set value VB of the memory 51A until it is detected that the lock section 40 is in the locked state. The process of enlarging it is repeated. Through this work, when it is detected that the locking part 40 is in the locked state, the driving force of the locking part 40 is applied to the door body even when the locking-thickness object 29A is caught in the door. This is determined and set as the driving force of the lock portion 40 suitable for bringing 22R and 22L into the locked state.

In this way, even if the door bodies 22R, 22L are closed with the lock-thickness jamb 29A caught in the door edge, the door bodies 22R, 22L can be locked by the lock portion 40. , the driving force for driving the lock portion 40 can be adjusted.

In addition, in the door jamming adjustment work (see Fig. 9), if the door jamming condition should occur but the door is locked, the motor 50 can be adjusted by rewriting the set value VB of the memory 51A. By reducing the output torque to reduce the driving force of the lock portion 40, it is possible to prevent the lock portion 40 from entering the locked state.

Specifically, when it is detected that the door jam condition does not occur, the work of reducing the driving force for driving the lock unit 40 by rewriting the set value VB of the memory 51A is performed until the door jam condition is detected. It is done repeatedly. Through this work, the driving force that drives the locking part 40 when a door jamming condition is detected is the same as the driving force that drives the locking part 40 when the door jamb is detected, and the door body 22R, 22L is in a locked state when a jamb 29B of the thickness of the door jamb is caught in the door tip. This is determined and set as the driving force of the lock portion 40 suitable for preventing this from occurring.

In this way, when the door bodies 22R, 22L are closed with the jamb 29B having the thickness of a door jamb being caught in the door edge, the door bodies 22R, 22L are not locked by the lock part 40, and the door jamb occurs. The driving force of the lock portion 40 can be adjusted so that the state is achieved.

According to the present embodiment, the adjustment work of the door lock device is not only performed by adjusting the mounting positions of the door bodies 22R and 22L, but also by rewriting the set value VB of the memory 51A to adjust the driving force of the lock unit 40 (in detail, This can also be done by adjusting the output torque of the motor 50 when the lock portion 40 is activated. Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

As explained above, according to this embodiment, the effects described below can be obtained.
(1) If the door is stuck even though it should be in the locked state, it is possible to increase the driving force that drives the locking part 40 to bring the locking part 40 into the locked state. can. In addition, if the locking state occurs even though the door should be in a jammed state, the driving force for driving the locking portion 40 is reduced to prevent the locking portion 40 from becoming locked. be able to. In this way, the adjustment work of the door lock device can be performed not only by adjusting the mounting positions of the door bodies 22R and 22L, but also by adjusting the driving force that drives the lock part 40. Therefore, the adjustment work of the door lock device can be performed with a high degree of freedom.

(2) The set value VB for the output torque of the motor 50 when the lock portion 40 is activated is stored in the nonvolatile memory 51A of the electronic control device 51. Then, the motor 50 is caused to generate a driving force according to the set value VB so that the lock portion 40 is locked. Therefore, the driving force of the lock section 40 can be changed by rewriting the set value VB of the memory 51A.

(3) In the lock adjustment work, when it is detected that the lock part 40 is not in the locked state, the driving force for driving the lock part 40 is increased until it is detected that the lock part 40 is in the locked state. Work is repeated. Through this operation, the driving force of the lock part 40 when it is detected that the lock part 40 is in the locked state can be adjusted to the door body 22R, 22L even when a lock-thick object 29A is sandwiched between the door ends. can be determined and set as a driving force for the locking portion 40 suitable for bringing the locking state into the locked state.

(4) In the door jamming adjustment work, when it is detected that the door jamming condition does not occur, the work of reducing the driving force that drives the lock part 40 is repeatedly performed until it is detected that the door jamming condition occurs. . Through this work, the driving force of the locking part 40 when a door jamming condition is detected is such that the door bodies 22R, 22L do not become locked when a jamb 29B of the same thickness as the door jamming is caught in the door tip. It is possible to determine and set the driving force of the lock portion 40 suitable for this purpose.

Note that the above embodiment may be modified and implemented as follows.
- The setting value VB of the memory 51A of the electronic control device 51 may be rewritten not through the operation of the external device 27 but through the operation of an on-vehicle device mounted on the vehicle 20.

In the example shown in FIG. 10, a multi-contact switch 80 is attached to the electronic control device 51 (FIG. 2). When the multi-contact switch 80 is operated, an external signal corresponding to the operating position is output to the electronic control device 51, and the set value VB in the memory 51A of the electronic control device 51 is rewritten. According to this configuration, the setting value VB stored in the memory 51A can be rewritten using the multi-contact switch 80 without using the dedicated external device 27.

In the example shown in FIG. 11, the vehicle 20 is provided with a plurality of door lock devices 90 (six in this embodiment). This vehicle 20 has a vehicle control section 91 that executes control related to vehicle operation, and the vehicle control section 91 has an operation section 92 that is operated by an operator. Then, when the operator operates the operation section 92, an external signal corresponding to the operation mode is output from the vehicle control section 91, and the set value of the memory 51A of each electronic control device 51 is rewritten. There is. According to this configuration, the setting value VB stored in the memory 51A can be rewritten using the vehicle control unit 91, which is an on-vehicle device, without using the dedicated external device 27. Further, according to the above configuration, in addition to rewriting the set values VB for the plurality of door lock devices 90 individually, it is also possible to rewrite the set values VB to the same value all at once.

- In a door lock system having multiple door lock devices, an external device 27 that can output an external signal for rewriting the set value VB stored in the memory 51A of the multiple door lock devices at once is adopted. You may. According to such a configuration, when the adjustment work of one door lock device among the plurality of door lock devices is completed, the adjusted setting value VB stored in the same door lock device is transmitted through the operation of the external device 27. , can be reflected in the setting value VB stored in the remaining door lock devices. Thereby, adjustment work for a plurality of door lock devices can be performed efficiently.

- In a door lock system having a plurality of door lock devices, the adjustment work for the door lock devices may be performed as follows. As shown in FIG. 12, first, adjustment work for one door lock device is performed (step S31 as a first step). Then, the set value VB stored in the door lock device for which the adjustment work has been completed is overwritten with the set value VB stored in the door lock device for which the adjustment work has not been completed (step S32 as a second step). . Thereafter, the adjustment work for the door lock device for which the adjustment work has not been completed is performed (step S33 as the third step).

According to such an adjustment method, the optimum value for the driving force of the lock unit 40 (specifically, the set value VB) obtained by the adjustment work of one door lock device is applied to other door locks to be adjusted later. It can be reflected on the device. Thereby, the difference between the actual value and the optimum value of the setting value VB in other door lock devices can be made small in advance, so that the adjustment work of the door lock device can be performed efficiently.

- A variable resistor may be provided between the motor 50 and the electronic control device 51. With such a configuration, it is possible to change the driving force transmitted from the motor 50 to the lock section 40 by changing the resistance value of the variable resistor. In the above configuration, the variable resistor corresponds to a limiting section that limits the driving force (specifically, the driving current of the motor 50) transmitted from the motor 50 to the lock section 40.

Further, a speed change mechanism may be provided between the motor 50 and the lock slider 41. With such a configuration, it is possible to change the driving force transmitted from the motor 50 to the lock portion 40 by changing the gear ratio in the transmission mechanism. In the above configuration, the speed change mechanism corresponds to a limiting section that limits the driving force transmitted from the motor 50 to the locking section 40 .

- The adjustment work of the above embodiment can be performed not only during the initial adjustment before shipping the vehicle 20, but also during maintenance of the vehicle 20 or when the door lock device is replaced due to a failure or the like.

- The door lock device and adjustment method of the above embodiments are applicable to a door control device having a rack-and-pinion type opening/closing part 30 and a motor 50 which is a driving part, a door control device having a belt type opening/closing part, and a driving part. It can also be applied to a door control device having a pneumatic cylinder. In addition, a door control device in which the drive unit that drives the opening/closing unit and the drive unit that drives the lock unit are separate, such as a door control device that has a first motor that drives the opening/closing unit and a second motor that drives the locking unit. The door lock device and adjustment method of the above embodiment can also be applied.

- The door lock device and adjustment method of the above embodiments are applicable not only to automatic doors consisting of double sliding doors, but also to automatic doors consisting of single sliding doors, automatic doors consisting of double doors, automatic doors consisting of folding doors, etc. can also be applied.

- The door lock device and adjustment method of the above embodiments can be applied not only to automatic doors of railway vehicles but also to platform doors installed on railway station platforms, automatic doors installed in elevators of buildings, etc. .

20...Vehicle, 21...Door opening, 22R, 22L...Door body, 23...Guide rail, 24R, 24L...Hanger, 25...Door wheel, 26...Cushion rubber, 27...External equipment, 28R, 28L...Lock protrusion, 29A , 29B... Pincer, 30... Opening/closing part, 31R, 31L... Rack gear, 32R, 32L... Arm part, 33... Planetary gear mechanism, 34... Sun gear, 35... Outer gear, 36... Planetary gear, 36A... Planetary carrier, 40 ...Lock part, 41...Lock slider, 41A...Plate part, 43...Connection mechanism, 43A...Conversion part, 43B...Traction member, 43C...Spring, 44...Operation pin, 50...Motor, 51...Electronic control unit, 51A ...Memory, 52...Rotation phase sensor, 53...Closing sensor, 54...Lock sensor, 60...Lock mechanism, 61...Operation member, 61A...Engagement or portion, 62R, 62L...Connection link, 63...Link portion, 64... Connection pin, 65... Base member, 66R, 66L... Swinging end, 67R, 67L... Engaging pin, 68R, 68L... Guide groove, 69R, 69L... Gripping member, 70... Gripping part, 71... Holding part, 80... Multi-contact switch, 90...door lock device, 91...vehicle control section, 92...operation section.

Claims (3)

a lock portion that locks the door to keep the door opening closed;
a storage unit that rewritably stores setting values based on external signals;
a driving section that generates a driving force according to a set value stored in the storage section so that the locking section locks ;
a change unit that rewrites the set value ,
The changing unit is configured to reduce the driving force by a predetermined value until it is detected that the door is in a door-caught state where the object is not locked by the locking unit while the object is being held between the doors. A door lock device that repeatedly drives the door to close and rewrites the set value to the driving force when it is detected that the door is stuck . A plurality of the door lock devices according to claim 1 are provided,
A door lock system comprising: an external device that outputs, as the external signal, a signal for collectively rewriting the setting values stored in the storage units of the plurality of door lock devices. an opening/closing part that operates the door to open and close the door opening;
a lock portion that locks the door to maintain the door opening in a closed state;
a storage unit that rewritably stores setting values based on an external signal;
a drive unit that applies a driving force to the opening/closing unit and the locking unit according to a set value stored in the storage unit ;
a change unit that rewrites the set value ,
The changing unit operates the driving unit by decreasing the driving force by a predetermined value until it is detected that the door is stuck in a door jammed state in which the door is not locked by the locking unit while the object is caught in the door. A door control device that repeatedly drives the door closed and rewrites the set value to the driving force when the door jamming condition is detected .