JP2500127Y2 - Door latches and safety devices - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door (doorway) capable of opening and closing a door body with respect to a door frame in both directions inside and outside a room.

[0002]

2. Description of the Related Art Doors are dangerous when they are pushed open. In particular, if you inadvertently open a door that cannot see the outside or the inside, you may hit a person approaching from the opposite side or a person passing by may collide. For doors that open in both directions, special
In addition, in the case of a door with a poor visibility, even a used person can not predict which way to open it, so when I tried to open it, it suddenly opened from the opposite side and fell forward
I Ri, or collision as described above in reverse.

[0003]

[Problems to be solved by the invention] This invention is a door
An object of the present invention is to provide a door latch and a safety device that can be opened only when the body is pulled forward from both the inside and outside of the room and can be securely locked in the closed position.

[0004]

A door catcher, an inner stopper pin, and an outer stopper pin are arranged inside a portion of a door frame on a door tip side (a side opposite to a hanging source in a width direction). The door catcher engages with the edge of the door body on the front end side and rotates within a predetermined angle range with the closed position of the door body as a neutral point. The inner stopper pin is driven by an inner solenoid and automatically returns by a spring to prevent the door body from rotating inside the room. The outer stopper pin is driven by the outer solenoid and automatically returned by the biasing member , and prevents the door body from being rotated to the outside of the room.

When power is supplied to both solenoids, the stopper pin releases the rotation prevention of the door body . Inner solenoid circuit is closed by operating the inner operation section, the inner operation section contacts open circuit by letting go of the operation unit to open the circuit when the door catcher is in the neutral point, closes the circuit deviates neutral point first It is connected to the power supply through a circuit in which one neutral point contact is connected in parallel. Similarly, the outer solenoid
Closed circuit by operating the operation portion, and the outer operation section contacts open circuit by letting go of the operation unit to open the circuit when the door catcher is in the neutral point, a second closing the circuit deviates neutral point
It is connected to the power supply through a circuit in which the neutral point contacts are connected in parallel.

[0006]

The inner stopper pin and the outer stopper pin respectively allow and prevent the door body from being opened inward or outward. Inner operating contact and first
The circuit in which the neutral point contacts of the door are connected in parallel is the door with the inner stopper pin when the inner operation part is operated to open the door.
To release the inner rotation blocking body, allowing the door is pulled inward, also close Misao the door body in which a previously opened
Make sure that the inner stopper pin does not return even if you release your hand from the work area so that the door is completely closed. The same applies to the circuit in which the outer operating portion and the second neutral point contact are connected in parallel.

[0007]

1 shows a door 1, in which a door body 3 is pivotally supported by a hinge 4 on a door frame 2. The door frame 2 is formed into a rectangular shape by upper and lower horizontal frames (not shown) and left and right vertical frames 5 and 6, and the door body 3 is pivotally supported by one of the vertical frames 5 and is located in both the outside and inside directions of the room. Can be turned to . The vertical frame 5 is located on the suspension base side, and the vertical frame 6 is located on the door tip side. The door body 3 has an outside operation portion 7 (outside knob) on the outside and an outside indicator 8 in the vicinity thereof,
The inside operation part 9 (inside knob) and the inside indicator 10 are provided inside.

On the other hand, a disk-shaped door catcher 11, an outer stopper pin 12 and an inner stopper pin 13 are mounted inside the vertical frame 6 on the door-front side. Door catcher 11 is rotatably mounted about a longitudinal axis 14, a latch groove 15 to receive and engage a door leading side edge of the door 3 in the door side, the wall side is its symmetrical position Is provided with a latch protrusion 16. Outer and inner stopper pin 1
The solenoids 2 and 13 are driven by the outer solenoid 17 and the inner solenoid 18, respectively. When electric power is supplied, the solenoids 17 and 18 are excited to pull in the stopper pins 12 and 13, and the power is cut off to deactivate the solenoid. When this is done, the stopper pins 12, 13 are returned by the biasing member and the stopper pins 12, 13 are projected.

The door catcher 11 has a latch groove 15 when the door body 3 is closed with respect to the door frame 2 as shown in FIG.
The door tip side of the door body 3 is engaged with the
Is at a neutral point located between the outer stopper pin 12 and the inner stopper pin 13 in the protruding state. The outer stopper pin 12 is located inside the latch protrusion 16, and the inner stopper pin 13 is located outside. The latch projection 16 is also an armature for operating the position detection switch 19 arranged between the outer and inner stopper pins 12 and 13, and the position detection switch 19 is turned off only when the door catcher 11 is in the neutral position. Thus, two contacts, that is, the first neutral point contact R1 and the second neutral point contact R2 (FIG. 2) are opened simultaneously.

Each of the outer operating portion 7 and the inner operating portion 9 has a so-called touch sensor function, and closes the outer operating portion contact Rex and the inner operating portion contact Rin, which are relay contacts, when a human hand comes into contact therewith. The outer display 8 and the inner display 10 are issuing elements such as LEDs, and notify that there is someone on the other side of the door 3 and the door 3 is about to be opened.

As shown in FIG. 2, the inside indicator 8 and the outside solenoid 17 are connected in parallel, and the outside operation is performed.
The external display 10 and the inner solenoid 18 are connected in parallel through the parallel circuit 20 of the internal contact Rex and the first neutral point contact R1 to connect the internal operating section contact Rin and the second neutral point contact. Power supply 21 via parallel circuit 22 of R2
It is connected to the. Reference numeral 23 is a power switch, which is arranged inside the room. Reference numeral 24 is a relay circuit for the outer operation portion , reference numeral 25 is a relay circuit for the inner operation portion , and reference numeral 26 is a relay circuit for the position detection switch 19.

[0012] In the door 3 is closed neutral position (FIG. 1), unless touch the outer operation section 7 or the inner operation section 9, the outer operation section contacts Rex, both the inner operation section contacts Rin open And the door catcher 11 is at the neutral point, the first and second neutral point contacts R1, R2
Is also open, even if the power switch 21 is turned on, the outer solenoid 17 and the inner solenoid 1
No. 8 is deenergized, and both the outer and inner stopper pins 12 and 13 project. That is,
The door 3 is closed and in a locked state, and does not sway inward or outward due to wind pressure or rattling.

Then, when an outside person touches the outer operating portion 7 to open the door body 3, the relay circuit 24 closes the outer operating portion contact Rex of the parallel circuit 20. As a result, the outer solenoid 17 is excited, the outer stopper pin 12 is pulled in, and the door catcher 11 is rotatable only outward. Therefore, if the outer operating portion 7 is pulled toward you, the door body 3 pivots outward and the door 1 opens. At this time, even if the door body 3 is pushed and opened, the inner stopper pin 13 is still protruding, so that the latch projection 16 of the door catcher 11 collides with the inner stopper pin 13 and the door 1 cannot be opened. Therefore, the door body 3 does not hit the person inside and the person inside does not collide with the door body 3. Moreover, since the inner indicator 8 attached to the inner surface of the door 3 is turned on at the same time when the outer operation portion contact point Rex is closed, a person inside can predict that the door 3 is opened to the outside. or surprised door 3 is open to the outside unexpectedly, benefit nor fell dramatically forward.

When the door body 3 is opened to the outside, the door catcher 11 is also pivoted outward about the shaft 14 by engaging with the door tip portion thereof, so that the latch projection 16 deviates from the neutral point and the position is detected. The switch 19 causes the first circuit through the relay circuit 26.
The neutral point contact R1 of is closed. That is, after the door body 3 is pulled toward you, the outer operating portion 7 may be released to enter the inside of the door 1. Therefore, even if the outer operating portion contact Rex is opened, the first neutral contact R1 is closed. Since the outer solenoid 17 remains excited, the outer stopper pin 1
2 is kept in the retracted state. Therefore,
When the door body 3 is closed without touching it by using the momentum at the time of closing, it is prevented that the outer stopper pin 12 projects and the door catcher 11 cannot return to the neutral point and the door 1 is not completely closed. be able to.

In this case, the second neutral contact R2 of the parallel circuit 22 is also closed, the inner solenoid 18 is excited, and the inner stopper pin 13 is retracted, so that the door body 3 temporarily moves in both the outer and inner directions. It is in a rotatable and free state. However, since the door body 3 rotated from the outside always passes through the position where the door catch 11 is the neutral point, when the two-way door 3 is closed, the second position detection switch 19 causes the second door 3 to move.
The neutral point contact R2 is opened, and the inner stopper pin 13 stops the door 3 at the closed position. That is, the door 1 returns to the initial closed neutral state. Also, the inner display 8
Turns off. The above-described operation of stopping the door body 3 at the closed position by the inner stopper pin 13 is surely performed by using the door closer. Even when the door body 3 is opened from the inside, it is the same as the above except that the outside and the inside are replaced.

In the above description, for example, the outside operating part 7 pulled by the outside person may be turned to the inside operating part 9 to enter the inside, and the door 3 may be closed. In this case, the inner operating portion 9 is held and the door 3 is pulled to close it, so that the inner operating portion contact Rin is closed and the inner stopper pin 13 is pulled in. Therefore, the door catcher 11 can rotate inward beyond the neutral point, and the door body 3 rotates inward beyond the closed position. However, a person who comes in from the outside immediately notices the inconvenience, and therefore either releases the door body 3 or pushes it back to the outside, so that when the door catcher 11 returns to the neutral point, that is, the door 1 When the door is closed, the first neutral point contact R1 of the parallel circuit 20 is opened, and the outer operating portion 7 is not touched by the hand.
The rotation of the door 3 is prevented by the step 2, and it is felt that the door body 3 is in the closed position due to the noise and the resistance of the contact with the outer stopper pin 12. If the hand is separated from the inner operation portion 9 at that time, the door body 3 is locked at that position. When going from the inside to the outside, it is the same as the above except that the outside is changed to the inside.

When the power switch 23 (inside) is opened with the door 1 closed, the latch and the safety device do not function, and the door body 3 is provided with the stopper pin 1 on the outside and inside.
2 and 13 lock it in that position and ensure safety. To release this state from the outside, a ten-key lock or the like for turning on the power switch 23 by remote control is used.

The above is one embodiment. To drive the relay circuit for use outside the operation section and the inner operation section, not only method of the touch sensor, such as a switching system which is closed by turning the operation portion, ON · by operating the operating unit
Anything can be used as long as it can be turned off.

Further, if the function of the outer operation section relay circuit 24 is invalidated by switching and the door 3 can be opened only from the inner side, this device can function as a crime prevention device at a doorway of a house. it can.

[0020]

The door according to the present invention can be opened by pulling the door from both sides without fail to prevent the danger of the door body being pushed out. The outer and inner indicators can prevent surprises and hazards caused by the abrupt opening of the two-way door. In the door, the closed door body can be reliably locked.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing a door.

FIG. 2 is a block diagram of a latch and a safety device.

FIG. 3 is a schematic plan view showing the operation of the door.

FIG. 4 is a schematic plan view showing another operation of the door.

[Explanation of symbols]

1 door 2 door frame 3 door 6 Migitatewaku 7 outer operation section 8 outside display 9 inside the operation portion 10 inside the display unit 11 door catcher 12 outside the stopper pin 13 inside the stopper pin 15 latch groove (door end side vertical frame) 16 Latch protrusion 19 Position detection switch

Claims (2)

(57) [Scope of utility model registration request] [Claim 1] A door having an operation portion on both the inner and outer chambers and axially supported to the door frame, in a door that is opened and closed and out in both directions of the room, the inside of the door end side locations of the door frame To
A door catcher that engages an edge of the door body on the front end side and that rotates within a predetermined angle range with the closed position of the door body as a neutral point; and a door catcher that is driven by an inner solenoid and automatically returns by a biasing member. An inner stopper pin that prevents the catcher from rotating inside the room and an outer stopper pin that prevents the door catcher from rotating outside the room by being automatically driven by an urging member while being driven by the outer solenoid are installed. solenoid is intended to release the power supply is the rotation preventing the door by the stopper pin of the inner solenoid circuit is closed by operating the inner operation section, the inner operation section circuit is opened by letting go of the operation portion Connects to the power supply through a circuit that connects the contacts and the first neutral point contact in parallel, which opens the circuit when the door catcher is at the neutral point and closes the circuit when the door catcher is out of the neutral point Is, outside the solenoid Similarly, outer
Closed circuit by operating the operation portion, and the outer operation section contacts open circuit by letting go of the operation unit to open the circuit when the door catcher is in the neutral point, a second closing the circuit deviates neutral point
Door latch and safety device, characterized in that it is connected to the power supply via a circuit in which the neutral point contacts are connected in parallel. 2. An inward opening indicator light that lights up when the inner operating portion contact is closed is provided on the outer surface of the door body , and an outer opening indicator light that lights up when the outer operating portion contact is closed is provided on the inner surface of the door body. The door latch and safety device according to claim 1, wherein: