JPH0721777Y2 - Automatic door electric lock device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric door lock device for an automatic door, which can be used both as a type for locking at the time of power failure and as a type for unlocking at the time of power failure.

[0002]

2. Description of the Related Art Generally, an automatic door emits a signal when a sensor detects a person approaching the door to drive a driving device to open the door, and when the human moves out of a detection range of the sensor, the driving device is driven. Reverse and close the door. Therefore, the door can be opened by hand when the drive device stops operating due to a power failure or other failure.

However, since the automatic door is not used at night or on holidays, when the power is turned off, the solenoid is energized and demagnetized to move the operating rod back and forth to lock the door so that the door cannot be opened by hand. An electric lock can be attached or removed. Conventionally, electric locks for this purpose have been
There are two types: one that energizes the solenoid and locks it, and then unlocks it with a coil spring or the like when there is a power failure. It

[0004]

As described above, in the conventional electric lock, the solenoid is excited to lock the lock, and the coil spring is used to unlock the lock when a power failure occurs. The solenoid is excited to unlock the lock to prevent a power failure. Sometimes the structure is completely different from the type that locks with a coil spring or the like, so there is a problem that there is no compatibility and usability is poor.

An object of the present invention is to provide an electric door lock device for an automatic door, which can be used both as a type for locking at the time of power failure and as a type for unlocking at the time of power failure by simply changing some parts. It is a thing.

[0006]

The present invention provides a solenoid 5
The spring 54 is interposed in the operating rod 55 which moves forward and backward by 2, and the operating rod 55 passing through the connecting pin 58 is mounted on the tip of the operating rod 55 at the first point of the link member 60 by the connecting pin 58.
A fulcrum shaft 61 is provided so as to be displaced from the axis line of the link member 60, and the second point of the link member 60 is pivotally mounted on the fulcrum shaft 61 to serve as a fulcrum of rotation.
8 is formed toward the guide hole 63, the guide pin 64 fixed to the lock pin 65 is engaged with the guide hole 63, and the lock pin 69 is engaged with and disengaged from the lock pin 65 at the upper portion of the suspension frame 14. An electric lock device for an automatic door, characterized in that a locking plate 67 formed with is fixedly attached.

[0007]

When the solenoid 52 is excited, the spring 54
Since the actuating rod 55 is attracted against the contact rod 58 and the connecting pin 58 at the tip is pulled in, the link member 60 has the first fulcrum shaft 61.
The lock pin 65 projects upward through the guide pin 64 that engages with the guide hole 63. Therefore, the lock pin 65 has the lock hole 69 of the locking plate 67.
It will not be locked and will not fit. When there is a power outage
The solenoid 52 is demagnetized, and the spring 54 causes the operating rod 5 to move.
5, the link member 60 rotates about the first fulcrum shaft 61 as a fulcrum, and the guide pin 64 engages with the guide hole 63.
The lock pin 65 is projected downward through the lock pin 67 and is fitted into the lock hole 69 of the locking plate 67 to be locked.

The above is the type that locks at the time of power failure. Next, when it is used as the type that unlocks at the time of power failure, the link member 60 is removed and inverted, and the first point is again connected to the connecting pin 58. The third point is engaged with the guide pin 64, but only the second point is mounted on the second fulcrum shaft 62. Then, when the solenoid 52 is excited, the link member 60 rotates in the opposite direction with the second fulcrum shaft 62 as a fulcrum to lower the lock pin 65 to lock it, and at the time of power failure, the link member 60 is locked by the spring 54. The second fulcrum shaft 62 is used as a fulcrum to rotate in the forward direction to raise the lock pin 65 to unlock it.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 11 is a channel member for housing the drive unit of the automatic door. Inside the channel member 11, in addition to a drive motor, a control circuit, etc., pulleys 45 are attached to both ends by a bracket 50 via a belt tension adjusting device 48, and a drive belt 46 is spanned. Further, an upper rail 12 is attached inside the channel member 11, and a suspension vehicle 1 rolling on the upper rail 12 is provided.
3, an opening / closing door 26 is attached via the suspension vehicle frame 14 so as to be openable / closable. In the case of a single-opening automatic door, the bracket 50 is provided with an electric lock device 49 together with the belt tension adjusting device 48.
A locking plate 67 is fixed on the suspension frame 14 located in the lower part of the.

In the electric lock device 49, a solenoid 52 is housed and fixed in the bracket 50 having an elongated box shape, a shaft pin 53 protruding from the solenoid 52 is connected to an operating rod 55, and a spring 54 is provided. Intervened. The guide pins 56 on both sides of the operating rod 55 are loosely fitted in the long holes 57 of the bracket 50. The operating rod 55
The front end of is fitted in a mounting block 59 provided in the bracket 50 so as to be able to move back and forth. At the tip of this operating rod 55, a first point of a triangular link member 60 is axially mounted by a connecting pin 58. In this connecting pin 58,
A rubber O-ring is built in to absorb the swing and prevent the generation of noise. Actuating rod 5 passing through this connecting pin 58
A first fulcrum shaft 61 and a second fulcrum shaft 62 are provided at equal distances on the left and right around the axis of 5.

The second point of the link member 60 is mounted on the first fulcrum shaft 61 or the second fulcrum shaft 62 to serve as a fulcrum of rotation. A guide hole 63 is formed at the third point of the link member 60 toward the connecting pin 58. A lock pin 65 orthogonal to the axis of the operating rod 55 is provided on the mounting block 59 so as to be able to move forward and backward, and both end portions thereof penetrate a hole 66 of the bracket 50 and project to the outside. Then, the guide pin 64 fixed to the center of the lock pin 65 projects from the long hole of the mounting block 59,
It engages with the guide hole 63.

A locking plate 67 shown in FIG. 4 is fixedly mounted on the upper portion of the suspension frame 14 by a mounting piece 70. The locking plate 67 is provided with lock holes 69 at both ends of the horizontal portion, and is provided with inclined plates 68 to form a left-right symmetrical shape, and is made usable for both left and right.

When the automatic door is one-sided, an electric lock device 49 is attached to the bracket 50 together with the belt tension adjusting device 48. A bolt 71 penetrates both ends of the bracket 50, and the nut 7 is attached to the protruding portion.
5 is screwed. This bolt 71 has a bracket 5
The shaft 72 is loosely fitted in the inside of 0, the spring 73 acting as a coil-like compression force is loosely fitted, and the moving piece 74 is screwed. This moving piece 74 is made up of bolts 71
The rotation of the bracket 50 causes the side wall of the bracket 50 to rotate while being prevented from rotating.

The small-diameter shaft portion of the shaft body 72 penetrates through the long hole 76 of the bracket 50 and projects upward, and a pointer 78 is provided so that the position of the pointer 78 can be adjusted. A pulley 45 is rotatably attached.

First, the operation of the electric lock device 49 having the above configuration will be described. When the solenoid 52 is excited when there is no power failure, the spring 54
Against the shaft pin 53 and the operating rod 55, the operating rod 5
Since the connecting pin 58 at the tip of 5 is pulled in, the link member 60 rotates about the first fulcrum shaft 61 as a fulcrum in the solid line state (clockwise direction) in the figure, and therefore, via the guide pin 64 that engages with the guide hole 63. Locking pin 65 projects upward in the drawing. Therefore, the lock pin 65 does not fit into the lock hole 69 of the locking plate 67 and is in the unlocked state. Here, when a power failure occurs, the solenoid 52 is demagnetized and the spring 54
As a result, the shaft pin 53 and the operating rod 55 project, and the link member 60 rotates about the first fulcrum shaft 61 as a fulcrum (counterclockwise direction) as shown by a chain line in the drawing, and the guide pin 64 engaged with the guide hole 63 is fixed. The lock pin 65 protrudes downward through the drawing and fits into the lock hole 69 of the locking plate 67 to be locked.

If the lock pin 65 projects downward due to a power failure while the open / close door 26 is not closed, the lower end of the lock pin 65 rides up on the inclined plate 68 when the open / close door 26 is manually closed. , The lock pin 65 rises against the spring 54, and when the guide pin 64 and the lock hole 69 are aligned, the lock pin 6
5 is again lowered by the spring 54 and fitted and locked.

The above is the type that locks at the time of power failure. Next, when used as the type that unlocks at the time of power failure, the connecting pin 58 of the link member 60 and the first fulcrum shaft 6
1 and the guide hole 63 is removed from the guide pin 64, the link member 60 is inverted, and the link member 60 is turned on again.
The first point of the above is mounted on the connecting pin 58 and the third point is engaged with the guide pin 64, but only the second point is mounted on the second fulcrum shaft 62. Then, when the solenoid 52 is excited,
The link member 60 rotates counterclockwise about the second fulcrum shaft 62 as a fulcrum to lower the locking pin 65 to lock it, and at the time of power failure, the link member 60 causes the link member 60 to rotate around the second fulcrum shaft 62 as a fulcrum by the spring 54. The lock pin 65 is lifted by rotating in the direction to unlock.

In the above-mentioned embodiment, the case where the belt tension adjusting device 48 and the electric lock device 49 are housed in the bracket 50 has been described, but only the electric lock device 49 may be housed. In this case, when changing to a different type, the link member 60 may be inverted or the entire device may be inverted. In the above-described embodiment, the first fulcrum shaft 61 and the second fulcrum shaft 62 are formed by spring pins and implanted in advance. However, if a screw with a head is used, when replacing,
You may make it unscrew and screw in from one to the other. In the above-described embodiment, the electric lock device 49 is attached to both ends of the channel member 11 in the case of the single-opening door. However, in the case of the double-opening door, the two opening / closing doors to be opened / closed are closed. The upper part of the door stop. in this case,
The electric lock device 49 and the belt tension adjusting device 48 cannot be housed together in the bracket 50.

The adjusting operation of the belt tension adjusting device 48 will be described. First, the bolt 71 is reversely rotated to move the moving piece 74 to the most nut 75 side, and the pulley 4 is moved.
Loosen the tightening bolt 5 and move the pulley 45 to the right in the drawing as much as possible. In this state, the drive belt 46 is stretched over the pulley 45, and then the bolt 71 is normally rotated. Then, the moving piece 74 starts moving leftward in the figure, and the spring 73 also tries to move leftward together.
However, since the drive belt 46 is stretched around the shaft body 72, the movement of the shaft body 72 is restricted and a compressive force is generated in the spring 73, and this compressive force is generated via the shaft body 72.
Given to 6. When the bolt 71 is further rotated in the forward direction, the moving piece 74 gradually moves to the left, but the shaft 72 hardly moves due to the tension of the drive belt 46, and the spring 73 gradually generates a large compressive force. Since the position where the pointer 78 and the moving piece 74 coincide with each other is set in advance so as to have an appropriate compression force, the tightening bolt is tightened at the time of this coincidence. Then, the shaft body 72 and the spacer 77
And the top plate portion of the bracket 50 is fixedly fastened, and the pulley 45 is fixed to a predetermined position of the bracket 50. As a result, the compression force of the spring 73 and the drive belt 46 are fixed in a separated state, and a predetermined tension is applied to the drive belt 46.

[0020]

Since the present invention is constructed as described above,
The link member has a completely same structure for the type that energizes the solenoid and locks it, and unlocks it with a coil spring etc. in the event of a power failure, and the type that unlocks it by exciting the solenoid and locks it with a coil spring etc. in the event of a power failure. Only by reversing 60 or reversing the entire device left and right, there is an effect of being compatible and being excellent in usability.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of an electric lock device for an automatic door according to the present invention.

2 is a cross-sectional view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is a perspective view of a locking plate 67.

[Explanation of symbols]

11 ... Channel material, 12 ... Upper rail, 13 ... Suspended vehicle, 14 ... Suspended vehicle frame, 26 ... Open / close door, 45 ... Pulley,
46 ... Drive belt, 48 ... Belt tension adjusting device, 49 ...
Electric lock device, 50 ... Bracket, 52 ... Solenoid, 5
3 ... Shaft pin, 54 ... Spring, 55 ... Actuating rod, 56 ... Guide pin, 57 ... Long hole, 58 ... Connecting pin, 59 ... Mounting block, 60 ... Link member, 61 ... First fulcrum shaft, 62 ... Second Support shaft, 63 ... Guide hole, 64 ... Guide pin, 65 ...
Lock pin, 66 ... Hole, 67 ... Locking plate, 68 ... Inclined plate, 69
... Lock hole, 70 ... Mounting piece, 71 ... Bolt, 72 ... Shaft,
73 ... Spring, 74 ... Moving piece, 75 ... Nut, 76 ... Long hole, 77 ... Spacer, 78 ... Pointer.

Claims (3)

[Scope of utility model registration request] 1. An operating rod 55 which advances and retreats with a solenoid 52.
A spring 54 is interposed between the actuating rods 55, and a link pin 60 is mounted on the tip of the actuating rod 55 at a first point by a connecting pin 58. , The second point of the link member 60 is the fulcrum shaft 61
The link member 60 is rotatably supported by the guide hole 63 at the third point toward the connecting pin 58.
A locking plate 67 is formed by engaging a guide pin 64 fixed to the lock pin 65 with the guide hole 63, and forming a lock hole 69 at the upper part of the suspension frame 14 for engaging and disengaging the lock pin 65.
An electric lock device for an automatic door, characterized in that it is fixedly attached. 2. A first fulcrum shaft 61 and a second fulcrum shaft 61 which are displaced from the axis of the operating rod 55 passing through the connecting pin 58 and are equidistant from each other.
A fulcrum shaft 62 is provided, and the second point of the link member 60 is inverted to one of the first fulcrum shaft 61 and the second fulcrum shaft 62 for axial purposes to serve as a fulcrum of rotation. The electric lock device for the automatic door described. 3. The electric lock device for an automatic door according to claim 1, wherein the entire device is turned upside down according to the purpose of use.