JPH04293877A - Door lock device - Google Patents

Abstract

PURPOSE:To carry out the door lock releasing and the door lock operation continuously with the door opening and closing operation. CONSTITUTION:A door lock device 3 is installed to a door 2 by inserting the insertion plate 10 of an installing main body 7 to the glass inserting groove 2b of the door 2. A lock lever 8 is provided rotatable to the installing main body 7, a coil spring 9 pulls the lock lever 8 in a toggle form, and the lock lever 8 is positioned at a door locking position or a door lock releasing position. The lock lever 8 is moved to the door locking position or the door lock releasing position by pushing an operating member 16. The door locking position of the lock lever 8 is positioned to the closing side of the door 2, while the door lock releasing position is positioned at the opening side of the door 2.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a door lock device.
In particular, the present invention relates to a door lock device configured to facilitate door locking or door unlocking operations.

0002

2. Description of the Related Art For example, in a painting line for painting the bodies of automobiles, vehicles are transported with doors attached to the bodies so as to be openable and closable, and painting work is performed on the bodies and doors. On automobile assembly lines, after the painting process, the locking mechanism that locks the door in the closed position and the door window glass are assembled inside the door, so these parts are still assembled before painting. Not yet.

[0003] The painting line is equipped with an industrial robot for opening unlocked doors before painting the inside of the body and the inside of the door. This type of industrial robot has a robot that opens the door by pressing a vacuum cup installed at the end of the arm against the outside of the door and suctioning the air inside the vacuum cup, and a robot that uses a sensor to detect the glass storage groove in the door. There is a type of robot that rotates the door in the opening direction by inserting the rod of an air cylinder provided in the hand into the glass storage groove.

[0004] Conventionally, in the conveyance line for conveying bodies, the door is not locked, so that the door may open by itself due to vibrations or the like during conveyance before the painting process begins. In that case, there is a risk that the opened door may come into contact with peripheral equipment and damage it, or that the peripheral equipment may be damaged.

[0005] Therefore, it has been considered to attach a door lock device to the door to temporarily lock the door so that the door does not open while the body is being transported on the transport line.

[0006]

[Problems to be Solved by the Invention] However, in conventional door lock devices, the direction of operation for locking or unlocking the door is completely different from the direction of operation for opening and closing the door. When attempting to unlock a door and automate the opening/closing operation of the door, the robot hand must be provided with a mechanism for operating the door lock and a mechanism for opening/closing the door separately.

[0007] Therefore, not only does the configuration of the robot hand become complicated, but also the weight increases due to the increase in size, resulting in problems such as an increase in the burden on the robot.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a door lock device that solves the above problems.

[0009]

[Means for Solving the Problems] The present invention includes a mounting part body which is detachably attached to a door provided in a door frame so as to be freely openable and closable, and a first rotation part which is rotatably supported by the mounting part body. a lock lever provided with an abutting portion that abuts the door frame in a rotating position and extends away from the door frame in a second rotational position; and a first lock lever that abuts the door frame at a second rotational position. When the lock lever is in the first rotation position, the lock lever is held in the first rotation position, and when the abutting portion is in the second rotation position, the lock lever is held in the second rotation position. a holding member for holding the lock lever in position;
The second rotational position of the lock lever is located in the closing direction of the door, and the second rotational position of the lock lever is located in the opening direction of the door.

0010

[Operation] When closing the door, press the lock lever to rotate the door to the closed position, and when the lock lever is further pressed, the contact part of the lock lever contacts the door frame, which is the first rotation position. Turn to lock the door. When opening the door, when the lock lever is pressed in the door opening direction, the contact part of the lock lever rotates to the second rotation position where it is separated from the door frame, and the lock lever is further pressed in the same direction. If you continue, the door will open.

[0011]

Embodiment FIGS. 1 and 2 show an embodiment of a door lock device according to the present invention.

In both figures, a door lock is installed inside the window 2a of the door 2 to prevent the door 2 attached to the car body 1 from opening without permission while the car body 1 is being transported to the painting line. Device 3 is installed. Furthermore, window 2
Since the lock mechanism (not shown) built into the window glass and door 2 of a is assembled after the painting process, the door lock device 3 can be easily attached from the window 2a before painting.

[0013] Therefore, the door 2 of the body 1 being transported to the painting line is locked in the closed position by a door lock device 3.

An industrial robot 4 that operates to open the door 2 is installed at the entrance of the painting line. This industrial robot 4 is an articulated robot, and a wrist 5a at the tip of an arm 5 has a door opening/closing jig for unlocking the door lock device 3 and rotating the unlocked door 2 in the opening direction. A rod 6 is attached.

Next, the structure of the door lock device 3 will be explained with reference to FIGS. 3 to 5. 3 is a plan view showing the door lock device 3, FIG. 4 is a front view thereof, and FIG. 5 is a side view thereof.

In each figure, the door lock device 3 is roughly connected to the window 2a.
A lock lever 8 is rotatably supported on the mounting body 7, and the lock lever 8 is moved from the locking position (first rotational position) to the unlocking position (second rotational position). It consists of a coil spring (holding member) 9 that is energized in a toggle manner.

The mounting body 7 has an insertion plate 10 inserted into the glass mounting groove 2b of the window 2a at the bottom of a flat base 7a, and a shaft 11 for supporting a lock lever 8 and a lock lever at the top of the base 7a. It has stopper pins 12 and 13 that lock 8 in the locked position and the unlocked position. Further, a latching pin 14 on which one end of the coil spring 9 is latched stands up on the upper part of the base 7a.

The lock lever 8 has a contact portion 15 extending from the shaft 11 in the X1 direction, and an operating portion 16 extending from the shaft 11 in the X2 direction. This contact part 15 and the operation part 1
6 are opened at an angle of α=approximately 150 degrees, as shown in FIG. ) to the door lock position as the first pivot position opposite 1a.

Note that the contact portion 15 does not contact the inner wall of the pillar 1a when the door 2 is in the closed position, but it contacts the pillar 1a when the door 2 begins to rotate in the opening direction (direction E). The door 2 is locked so that it does not open any further.

As will be described later, the operating section 16 has a wide section 16a on the tip side that is pressed and operated by the industrial robot 4, and when the lock lever 8 rotates in the direction B, the stopper pin 1
3 and reaches the door lock release position (shown in FIG. 6), which is the second rotational position. At this time, the contact portion 15 is displaced to a position spaced apart from the pillar 1a of the body 1, and is in the door unlock position where it does not prevent rotation of the door 2 in the opening direction (direction E).

The door lock position of the lock lever 8 is A.
This direction A coincides with the closing direction of the door 2. Further, the door lock release position of the lock lever 8 is at a position rotated in the direction B, and
The direction coincides with the opening direction of the door 2.

Therefore, when opening the door 2, the only operation is to press the lock lever 8 in the direction of unlocking the door, and when closing the door 2, the only operation is to press the lock lever 8 in the direction of locking the door. .

Further, a locking pin 17 on which the other end of the spring 9 is hooked stands up on the upper part of the operating portion 16, and the lock lever 8 is biased in a toggle manner by the tensile force of the coil spring 9. . That is, when the lock lever 8 rotates in the A direction and is in the door lock position, the latch pin 17 is moved closer to A than the shaft 11.
Since the lock lever 8 is located in the A direction, the lock lever 8 is biased to rotate in the A direction by the spring 9.

Furthermore, when the lock lever 8 rotates in the direction B and is in the door unlock position, the locking pin 17 is located in the direction B relative to the shaft 11 as shown in FIG. 8 is rotationally biased in direction B by a spring 9.

Therefore, when the door is locked, the lock lever 8 is energized to the door lock position where the abutting portion 15 abuts the stopper pin 12 by the spring force of the single coil spring 9, and is held without rattling. When unlocking, the operating portion 16 is held at the door unlocking position where it comes into contact with the stopper pin 13.

In addition, the coil spring 9 biases the lock lever 8 in the direction A or B with the latching pin 17 as a boundary line connecting the centers of the latching pin 4 and the shaft 11 in FIG. When the lever 8 is pressed until the operating portion 16 crosses line C, the lever 8 is then rotated in the direction A or B by the spring force of the spring 9. Therefore, the lock lever 8 can be pressed with a small operating force.

Next, the opening and closing operations of the door 2 by the robot 4 will be explained.

Before the body 1 reaches the painting line for internal painting, the door lock device 3 having the above structure locks the window 2a of the door 2.
mounted on. This mounting operation is simply by inserting the insertion plate 10 of the mounting body 7 into the glass insertion groove 2b of the window 2a, so anyone can easily mount it. In addition, since the insertion plate 10 of the attachment part main body 7 fits into the glass insertion groove 2b without a gap, and the base 7a is placed on the upper part of the glass insertion groove 2b, the door lock device 3 is inserted into the window 2a of the door 2. Can be installed stably without wobbling.

When the door lock device 3 is installed, the lock lever 8 is held in the direction A, that is, in the door lock position. Therefore, the door 2 was closed before reaching the entrance of the painting line.
will not open automatically due to vibrations during transportation.

[0030] When the body 1 arrives at the entrance of the painting line,
The industrial robot 4 executes a door opening operation that has been taught in advance. That is, as shown in FIGS. 1 and 2, the industrial robot 4 moves the rod 6 attached to the wrist 5a into the window 2a of the door 2, and uses the tip of the rod 6 to lock the lock lever 8.
Press the operating section 16 in the direction B.

The door lock by the lock lever 8 is now released as shown in FIG. Since the door lock release direction (B direction) of the lock lever 8 matches the opening direction (E direction) of the door 2, if the robot 4 continues to press the operating part 16 in the same direction, the door 2 will move as shown in FIG. It rotates in the opening direction as shown by the dashed line.

In this way, the industrial robot 4
By simply pressing the operation part 16 of the lock lever 8 in direction B, the door can be unlocked and the door 2 can be opened continuously. There is no need to separately provide a mechanism for unlocking the door and a mechanism for opening and closing the door. Therefore, the rod 6 is simply attached to the wrist portion 4a of the industrial robot 4, which eliminates the need to use a complicated hand, and the tip of the arm can be made lightweight, reducing the burden on the arm 5 and the wrist portion 5a.

Further, when the painting inside the body 1 is completed and the body 1 arrives at the exit of the painting line, a robot similar to the industrial robot 4 performs a door closing operation.

In this case, the robot presses the operating portion 16 of the lock lever 8 in the door closing direction using the rod 6 at the tip of the arm. The door 2 is now rotated to the closed position. Note that since the wide portion 16a of the operating portion 16 has a considerably wider area than the rod 6, the operating portion 16 can be reliably pressed even if the pressing position of the rod 6 of the lock lever 8 is shifted.

Since the door lock direction coincides with the door closing direction, if the robot continues to press the operating section 16 in the same direction (direction A), the lock lever 8 will rotate to the door lock position as shown in FIG. to lock door 2.

In this manner, when closing the door 2, the robot continuously closes the door 2 and locks the door by simply pressing the operating portion 16 of the lock lever 8 in the door closing direction (direction D). be able to.

In addition to the above embodiment, a door opening/closing jig 18 having a rod whose tip is bent into a hook shape as shown in FIG. 7 may be attached to the tip of the arm of the robot 4. This door opening/closing jig 1
8, when opening the door 2, the hook portion 18a at the tip is hooked on the operating portion 16 of the lock lever 8, thereby easily unlocking the door and opening the door.

Furthermore, during the door closing operation, since the tip of the door opening/closing jig 18 extends in the hanging direction, the operating section 16 can be reliably pressed even if the position is slightly shifted relative to the operating section 16. Note that the operation of the door lock device 3 and the opening/closing operation of the door 2 can be performed using a device other than the robot 4. For example, as shown in FIG. 8, an air cylinder device 19 may be used.

In this air cylinder device 19, when the body 1 arrives at the entrance of the painting line, the solenoid valve unit 20 is operated to switch the supply of compressed air from the air source 21. As a result, the rod 19a of the air cylinder device 19 is displaced in the expansion/contraction direction, and the operating portion 16 of the door lock device 3 is pressed in the direction A or B to lock or unlock the door.

In the case of the air cylinder device 9, the rod 1
Since the lever 9 only moves back and forth, a magnet that attracts the operating portion 16 of the lock lever 8 may be attached to the tip of the rod 19a in order to easily release the door lock.

[0041] Furthermore, the door lock device 3 having the above configuration has the following features:
It goes without saying that the system is not limited to automation as in the above-mentioned embodiments, and that an operator manually locks and unlocks the door, as well as opening and closing the door 2.

Furthermore, although the above embodiment has been described as locking the door 2 of the automobile body 1, it goes without saying that the present invention can also be applied to door locks other than automobiles.

[0043]

As described above, in the door lock device of the present invention, the first rotational position where the abutting portion of the lock lever locks the door is located in the door closing direction, and the abutting portion of the lock lever is located in the door closing direction. Since the second rotational position spaced apart from the door frame is located in the door opening direction, the door lock release operation and door opening operation can be performed by pressing the lock lever in the door opening direction. By pressing the lock lever in the door closing direction, the door closing operation and door locking operation can be performed continuously. Therefore, when using a robot to open and close doors, there is no need to provide a hand with a door lock operation mechanism and a door opening/closing mechanism at the tip of the arm. It can reduce the burden. Furthermore, since the robot's motion is simplified, the teaching operation can also be simplified.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a state in which an embodiment of a door lock device according to the present invention is attached to an automobile body.

FIG. 2 is a plan view for explaining door opening/closing operations by a robot.

FIG. 3 is an enlarged plan view of the door lock device.

FIG. 4 is a front view of the door lock device.

FIG. 5 is a side view of the door lock device.

FIG. 6 is a plan view showing the unlocking operation of the door lock device.

FIG. 7 is a diagram showing a modification of the door opening/closing jig.

FIG. 8 is a plan view when the air cylinder device is used to open and close the door.

[Explanation of symbols]

1 Body 2 Door 3 Door lock device 4 Industrial robots 5 Arm 6 Rod 7 Mounting part main body 8 Lock lever 10 Insertion plate 12, 13 Stopper pin 15 Contact part 16 Operation section

Claims (1)

[Claims] 1. A mounting part main body that is removably attached to a door provided on a door frame so as to be freely openable and closable, and a mounting part main body that is rotatably supported by the mounting part main body and that abuts the door frame in a first rotational position. a lock lever provided with an abutting portion extending so as to be in contact with the door frame and to be separated from the door frame in a second rotational position; a holding member that holds the lock lever in a first rotational position, and holds the lock lever in a second rotational position when the abutting portion is in a second rotational position where the contact portion is spaced apart from the door frame; The first rotational position of the lock lever is located in the closing direction of the door, and the second rotational position of the lock lever is located in the opening direction of the door. Features a door lock device.