JP3054585B2 - Door switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch which can be reliably turned on and off by operating a first and a second operating member having a handle portion which moves in the same direction as pushing and pulling of a door.
The present invention relates to a door switch device that can improve operability.

[0002]

2. Description of the Related Art A door switch device has been developed which automatically turns on and off electric devices such as a luminaire for a toilet and a ventilation fan by opening and closing an opening door.

[0003] As an example of such a door switch device, a device proposed in Japanese Patent Publication No. Hei 3-50066 is known. For example, since this device employs a so-called two-stage latch mechanism, it can be used from within a toilet. When the door is closed, unless the lever is securely operated until the end, a malfunction (switch off) often occurs.

[0004] Further, since the opening and closing of the hinged door and the operation of the lever do not completely coincide with each other, the operation tends to be difficult for a person who does not know the operating principle or the like.

[0005] Further, the conventional lever handle needs to be operated by twisting the wrist. Particularly, a weak person such as a child or the elderly often feels inconvenience.

According to the present invention, the operation of the first and second operating members having the handle portion which moves in the same direction as the push and pull of the opening door releases the locking by the locking member of the lock rod, The switch comes on when it comes into contact with the protruding operating piece by operating the operating body,
On the basis of turning off, for example, a malfunction due to the operation of the second operating body from inside the toilet can be reliably prevented, and the first and second doors are pushed and pulled in the same direction as the pushing and pulling directions.
It is an object of the present invention to provide a door switch device which can operate the operation body of the door switch and can improve convenience and operability.

[0007]

According to the present invention, there is provided a metal fitting (2) provided at one side edge of a wall opening, and a free end of a hinged door D pivotally supported at the other side edge of the wall opening. A lock switch (4) comprising a lock body (3) provided on an edge thereof, wherein the lock body (3) can protrude from a free edge of the opening door D and can move back and forth forward and backward. And a locking member (5) for locking the locking rod (4) in a protruding position so as not to retreat.
First and second operating bodies (12) and (13) having handle portions (11A) arranged on both sides of the opening door D and moving in the same direction as pushing and pulling of the opening door D; 2 operation bodies (1
2) and (13) release brackets (6), which move back and forth from the neutral position by the operation in the same direction, and release the locking of the locking rod (4) by the locking tool (5) by this forward and backward movement. 7),
Or a (6A), before the operation of the first operating body (12)
An operating piece (9) projecting from a free edge of the door D at a different position is provided, and the metal fitting (2) is provided with a hole (20) into which the lock rod (4) is fitted, and a projecting part. And a proximity switch (23) that is turned on and off by the operating piece (9).

The locking rod (4) has a front end portion having an engaging surface (14) extending in the front-rear direction and a guide surface (15) inclined with respect to the front-rear direction. The front fitting (17) which is pulled toward the free edge while falling toward the guide surface (15) by being pressed, receives the front fitting (17) and can be moved backward by the falling of the front fitting (17), and the spring A rear fitting (19) urged forward by means (21), and furthermore, a contact surface (22) on which the locking tool (15) is irreversibly locked by the rear fitting (19).
It is desirable to provide (A) and (22B).

The lock body (3) includes a first operating body (11).
Operation, a slide piece (10) is selectively held at a front position (U1) or a rear position (U2), and the operating piece (9) moves in conjunction with the slide piece (10). It is desirable.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 12, a door switch device 1 according to the present invention includes a metal fitting 2 provided on one side edge of a wall opening, and a free edge of an opening door D pivotally supported by the other side edge of the wall opening. And a lock body 3 provided in the main body.

As shown in FIGS. 1A, 2 and 3, the lock body 3 is engaged with the lock rod 4 in a rectangular parallelepiped case 25 embedded in the free end of the opening door D. Tool 5 and 2 in this embodiment
It has two release fittings, namely, first and second release fittings 6 and 7, an operating piece 9 and a slide piece 10, and moves on both sides of the door D in the same direction as the push and pull of the door D. First and second operating bodies 1 having handles 11A and 11B
2, 13 are provided.

In the present embodiment, the opening door D opens and closes the wall opening provided in a wall partitioning a small room R such as a toilet and a corridor C, and has a free edge side toward the corridor C. The first operating body 12 is opened, and the first operating body 12 is arranged on the surface of the opening door D facing the corridor C, and the second operating body 13 is arranged on the surface of the opening door D facing the small room R.

The lock lever 4 has an opening door D inside a rectangular parallelepiped inner case 26 mounted above the inside of the case 25.
Are arranged so as to be able to protrude and retract from the free edge thereof and to be able to move back and forth.

The locking rod 4 has a vertical engaging surface 14 extending in the front-rear direction and facing the corridor C, and a vertical guide surface 15 inclined obliquely to the front-rear direction and facing the small room R. And a front end 17 comprising a rear end 30 projecting rearward from the rear surface of the front end 16, and a front end which abuts on the rear end of the front end 17. 17 comprises a rear bracket 19 for receiving the rear portion 17.

The front bracket 17 has a front end 16 projecting from a hole formed in a front plate 27 for closing the front end of the case 25, and a projection 29 provided at the rear end between the upper and lower surfaces of the front end 16. .. Come into contact with the rear surface of the front plate 27 to be prevented from falling off.

The rear end portion 30 projects rearward at an intermediate position between the rear surface of the front end portion 16 and the front end portion 1.
6, and the front end 17 has a substantially parallelogram shape by forming the rear surface of the rear end portion 30 as an inclined surface 31 oblique to the front-rear direction and facing the corridor C.

The front bracket 17 is provided at the center of the metal base 1.
The contact portions 17B and 17C made of synthetic resin are fixed to both surfaces of 7A using screws or the like.

The front end 17 of the front bracket 17 has a tip 16 shown in FIG.
As shown in (A), (B), and (C), the hole 20 formed by the upper metal receiving piece 32 having a substantially hat-shaped cross section constituting the metal receiving piece 2.
FIG.
5 (B), as shown in FIG. 5 (B), the engaging surface 14 is pushed by the side edge of the upper receiving object 32 on the corridor C side, so that the engaging surface 14 falls (rotates) toward the guide surface 15. It can be moved to the immersion position Y which is retracted to the free edge side (hereinafter referred to as the fall of the front fitting 17).

The rear fitting 19 has a front part 1 at the front.
7 has a substantially rectangular parallelepiped shape provided with a concave portion 33 into which the rear end portion 30 can be fitted. The front metal member 17 is received by fitting the rear end portion 30 into the concave portion 33, and the inner case is formed by the fall of the front metal member 17. 26 can be moved backward and the rear bracket 19
Of the inner case 26 and a rear plate 26A of the inner case 26.

To the front of the rear fitting 19 and above and below the recess 33, contact plates 34, 34 made of synthetic resin are attached to facilitate smooth contact with the front fitting 17. On both sides of the rear end of the lower surface,
Are formed by the front surfaces of the notches 35, 35 cut forward from the rear end of the rear bracket 19.

As shown in FIGS. 1A and 2, the locking member 5 is a pair of engagement members pivotally supported by a shaft 36 provided between the side plates of the case 25 below the inner case 26. Stop fittings 37A, 37B and cylindrical connecting fitting 3 which penetrates the shaft body 36 and integrally connects the locking fittings 37A, 37B.
9

The front ends of the lock members 37A and 37B can lock the contact surfaces 22A and 22B of the rear metal member 19, and the front metal member 17 of the lock rod 4 is moved to the projecting position X.
Can be held irreversibly. The locking member 5 is urged by a suitable spring means in a direction in which its front end faces upward.

The downwardly protruding locking portions 40, 40 provided at the rear ends of the locking metal fittings 37A, 37B are respectively provided with the first and second locking members.
It is locked by the second release fittings 6 and 7. 1st, 2nd
The release metal fittings 6 and 7 are provided with concave portions 42 and 42 for locking the locking portions 40 and 40 on the upper surface of the vertical flat plate-like substrates 41 and 41 extending back and forth, and are provided on the upper front end of each substrate 41. A protruding piece 43 protruding forward is provided.

[0024] The first, between the second release bracket 6, FIG.
As shown in FIG. 7 (A), the upper
A slide piece 10 provided with a concave portion 44 having an opening on the surface is provided, and the operating piece 9 is linked to a lower end portion of the slide piece 10 via a connecting body 45 bent in a rectangular shape.

Further, the first and second release fittings 6 and 7 and the slide piece 10 are supported using a suitable receiving plate (not shown) so as to be movable in the front-rear direction, and the first and second release fittings are also provided.
Release brackets 6 and 7 move back and forth from the neutral position Z shown in FIG. 1A by operating the first and second operating bodies 12 and 13 in the same direction. In the neutral position Z, the locking portions 4 provided on the locking fittings 37A and 37B of the locking tool 5 are provided.
The front ends of the locking fittings 37A, 37B are locked to the contact surfaces 22A, 22B of the rear fitting 19 of the lock rod 4 by locking the 0, 40 into the recesses 42, 42. It is impossible to retreat.

The operating piece 9 includes an operating bracket 49 having a conical tip 47 projecting from a hole formed in the front plate 27 on a base 46 at the front end of which contacts the front plate 27 of the case 25. Therefore, the operating fitting 49 can freely move in and out when the door D is opened and closed.

The first and second operating bodies 12, 13 are
As shown in FIG. 3, the vertical handle portions 11A and 11B which move in the same direction as the push and pull of the opening door D are attached to the lever-like bodies 50 which are inclined backward and project from both sides of the opening door D, and the first. Of the operation body 12 are fixed to a vertical support shaft 51A which is provided upright in a recess provided on the corridor C side surface of the opening door D, and the first release fitting 6 The recess 4 of the slide piece 10 penetrates through the rectangular hole 52A.
A pin 53A to be inserted into the support shaft 4 is fixed on the corridor C side of the support shaft 51A.

Therefore, by gripping the handle 11A of the first operating body 12 and pushing and pulling it, the first release fitting 6
Can be moved back and forth from the neutral position Z via the pin 53A (forward when pushed, backward when pulled), and the locking portion 40 of the locking device 5 is disengaged from the concave portion 42 to release the locking device 5 The front is rotated downward about the shaft 36 to release the locking of the rear metal 19 of the locking rod 4 to the abutment surface 22A by the locking tool 5. In FIG. 3, the handle portion 11A is pushed and the pin 53A is pressed.
Is moved forward, and the first release fitting 6 is moved forward by a dashed line.

Further, the slide piece 10 is provided on the first operating body 1.
2 is selectively held forward (front position U1) or rear (rear position U2) via the pin 53A by the push-pull operation of FIG. As shown in FIG. 1A, the operating piece 9 is located below (the lower position V1) close to the lower plate of the case 25, and at the rear position U2, is higher (upper) than the lower position V1 as shown in FIG. Position V2).

As described above, the first operating body 12 is moved by pushing and pulling the handle 11A.
The operating piece 9 is moved so as to protrude at a different position, that is, the lower position V1 or the upper position V2, in conjunction with 0.

The lever-shaped members 50 of the second operating member 13.
A pin fixed to a vertical support shaft 51B that stands upright in a recess provided on the surface of the door D on the small room R side and inserted into the rectangular hole 52B of the second release fitting 7 53B is
The support shaft 51B is fixed to the small room R side.

Accordingly, by gripping and pushing and pulling the handle portion 11B of the second operating body 13, the second release fitting 7 moves back and forth from the neutral position Z (forward when pushed, backward when pulled). Rear fitting 1 of the lock rod 4 by the locking tool 5 by forward and backward movement
Release the lock of the contact surface 22B of No. 9 above. The case where the pin 53B is moved backward by pulling the handle 11B and the second release fitting 7 is moved rearward is shown by a dashed line in FIG.

The first and second operating bodies 12, 13 automatically return to the neutral position from the state where they are pushed and pulled by the spring means 54, 54 wound around the support shafts 51A, 51B.

The metal fitting 2 is a front metal fitting 1 for the lock rod 4.
The upper metal support 32 which forms the hole 20 into which the metal 7 is inserted.
And a lower receiving member 55 having a substantially hat-shaped cross-section provided with a switch 23 that is turned on and off by contact with the projecting operating piece 9.

[0035] The switch 23 is formed of a so-called proximity switch 24 which is turned on when in the result on the position V2 off when the operating piece 9 out collision is in the lower position V1.

Hereinafter, the door switch device 1 according to the present embodiment will be described.
Will be described. First, as shown in FIGS. 1 (A), 1 (B) and 1 (C), when a person does not enter a small room R such as a toilet or the like, the distal end portion 16 of the front metal member 17 of the lock rod 4 is connected to the metal member. The lock rod 4 is fitted into the second hole 20 and is locked at the projecting position X by the locking tool 5 so as not to be retracted. The first and second release fittings 6 and 7 are in the neutral position Z for locking the locking tool 5, and the rear edge of the pin 53A substantially abuts the rear of the recess 44 of the slide piece 10. and while the pin 53B is also arranged in the same position Chigae position vertically and the pin 53A and the longitudinal direction, the operating piece 9 is held protruding under position V1, <br/> by the proximity switch 24 The proximity switch 24 is turned off by contact.
Therefore, the electric appliances such as the lighting equipment and the ventilation fan in the small room R are not operating. The first and second release brackets 6 and 7 are:
At the neutral position Z, the projecting pieces 43 are held by pins (both not shown) passing through elongated holes extending in the front-rear direction provided in the projecting pieces 43 and being bridged in the case 25.

When a person tries to enter the small room R and slightly pulls the handle 11A of the first operating body 12 toward the corridor C as shown by the arrow in FIG. The first release bracket 6 is moved backward by the backward movement of the pin 53A,
By rotating the locking member 5 counterclockwise about the shaft 36 in FIG. 4A, the locking of the locking rod 4 to the rear fitting 19 by the locking member 5 is released. Therefore, the rear fitting 5 can be moved backward, and the front fitting 17 can fall down as shown in FIG.

Further, by pulling the handle portion 11A of the first operating body 12 toward the corridor C, the slide piece 10 is moved to the front position U by the backward movement of the pin 53A as shown in FIG.
1 to the rear position U2, and moves the operation piece 9 to the upper position V2 via the connecting body 45. Accordingly, the proximity switch 24 is turned on, and the lighting equipment of the small room R is
Activate electrical equipment such as ventilation fans. Further, as shown in FIG. 5B, the front metal member 17 once moves to the immersion position Y by falling down, and then opens as shown in FIG.
Is opened, the spring unit 21 returns to the original projecting position X by the forward movement of the rear bracket 19.

When the hand is released from the handle 11A of the first operating body 12, the first release bracket 6 is restored to the neutral position Z by the forward movement of the pin 53A, as shown in FIG.
The locking member 5 is locked to lock the rear fitting 19 immovably backward. Since the pin 53A moves forward in the recess 44, the slide piece 10 is held at the rear position U2, and therefore the operating piece 9 is also held at the upper position V2.

When a person enters the small room R and pulls the handle 11B of the second operating body 13 toward the small room R as shown by an arrow in FIG. 7B, the result is shown in FIG. 7A. So that the pin 53
By the backward movement of B, the second release fitting 7 is moved backward, and the locking of the rear fitting 19 by the locking tool 5 is released. Accordingly, the front fitting 17 can be moved backward. Also at this time, since the pin 53B moves backward in the recess 44, the slide piece 10 and the operating piece 9 are held at the rear position U2 and the upper position V2, respectively.

In this state, the handle 11 of the second operating body 13
When the user continues to pull B, as shown in FIG. 8, the guide surface 15 of the front fitting 17 hits one side edge of the wall opening to move the front fitting 17 backward. Is the hole 20 by the spring means 21.
(See FIG. 9B).

When the hand is released from the handle 11B of the second operating body 13, as shown in FIG.
The pin 53B moves forward to move the second release metal member 7 to the neutral position Z by the restoration by the spring means 54, whereby the locking member 5 locks the locking portion 40 to the concave portion 42 and At the front end, the rear bracket 19 of the locking rod 4 is immovably locked. Since the operating piece 9 is held at the upper position V2, the proximity switch 2
No. 4 will be kept on.

As described above, even when the door D is closed from the inside of the small room R, the switch 23 can be reliably held in the ON state by the natural operation of pulling the handle portion 11B of the second operating body 13, and the malfunction (switch failure) 23) can be prevented and the usability can be improved.

The opening door D is locked so as not to be opened by an appropriate locking means operable from inside the small room R.

Next, when a person leaves the small room R,
As shown by the arrow in FIG. 10B, the handle 11B of the second operating body 13 is pushed toward the corridor C. Accordingly, the pins 53
B further moves forward as shown in FIG. 10 (A) and moves only the second release fitting 7 forward from the neutral position Z. Therefore, the locking of the locking rod 4 by the locking tool 5 is released, and the front The metal fitting 17 is immersed by the fall, and the opening door D can be opened. At this time, the slide piece 10 is
Therefore, the moving piece 9 does not move because it does not collide with the moving member 9 and, therefore, the operating piece 9 is held at the upper position V2.

When the hand is released from the handle 11B of the second operating body 13 (see FIG. 11B), the pin 53B is automatically moved backward by the spring means 54 as shown in FIG. 11A. Then, the second release metal member 7 is returned to the neutral position Z, and the rear metal member 19 of the lock rod 4 is immovably locked by the locking member 5.
The slide piece 10 is held at the rear position U2.

Further, the person leaves the small room R and
When the handle 11A of the first operating body 12 is pressed as shown in FIG. 12B, the pin 53A moves forward as shown in FIG. 12A, and the first release bracket 6 is moved forward from the neutral position Z. To release the locking of the lock rod 4 by the locking member 5, the slide piece 10 also moves forward by the forward movement of the pin 53A and shifts to the front position U1. Accordingly, the operating piece 9 moves to the lower position V1 via the connecting body 45 and the front fitting 17
The guide surface 15 is pushed by the closing of the opening door D, moves backward once, and then fits into the hole 20. Further, the opening door D closes the wall opening and the handle 11 of the first operating body 12 is opened.
When the hand is released from A, the state returns to the state shown in FIG. At this time, since the operating piece 9 is in contact with the proximity switch 24,
The electric appliances such as the lighting equipment and the ventilation fan in the small room R are turned off, and their operations are stopped.

As described above, the door switch device 1 of the present invention
Handle 11 that moves in the same direction as the push / pull of the door D
By operating the first and second operating bodies 12 and 13 having A and 11B, the switch 23 can be turned on and off with a simple operation to open and close the opening door D, and the operability can be improved.

In this embodiment, the case where the opening door D is opened outward toward the corridor C is shown. However, the switch 23 is turned on when the switch 23 is moved upward, or when the operating piece 9 comes into contact with the switch 23 to turn on. By using a proximity switch that is turned off by doing so, the door D can be opened inward so as to open the small room R side.

FIGS. 13 to 16 show a door switch device 1 according to the present invention.
2 shows another embodiment of the present invention. In the present embodiment, the lock main body 3 provided at the free edge of the opening door houses a lock rod 4, a lock 5, a release fitting 6 </ b> A, a slide piece 10, and an operation piece 9 in a case 25.

The locking rod 4 has an engagement surface 14 and a guide surface 15.
A front bracket 17 which is drawn in from the protruding position X when the engagement surface 14 is pressed,
And a rear fitting 19 for urging the front fitting 17 forward.

The locking member 5 has a seesaw shape pivotally supported between the front end and the rear end, and locks the rear fitting 19 at the front end to hold the front fitting 17 at the protruding position X so as not to be retractable. At the same time, the release fitting 6A has a V-shaped groove portion 59 at the upper edge into which the rear end of the locking tool 5 is inserted, and is moved back and forth so that the locking tool 5
The rear end is pushed up by a V-shaped groove portion 59 to form a plate that releases the locking of the locking tool 5 to the rear fitting 19.

The slide piece 10 is arranged so as to be movable back and forth along with the release fitting 6A, and pivotally connects one end of a connecting body 45 pivotally supported by the case 25. As shown in FIG. 15 and FIG.
0 is tilted, and the two operating pieces 9, 9 are selectively projected from two different positions at the top and bottom. In the vertical state shown in FIG. 15, the wing piece 60 moves forward along the cylindrical tool 65 and is urged rearward by a spring 66. 13 and 14, the long hole 69 for the boss portion 67 projecting from the front surface of the wing piece 60 to be supported on the side plate of the case 25 so as to be able to move back and forth is indicated by a chain line.

A metal fitting 2 provided on one side edge of the wall opening
Is a hole 2 into which the front fitting 17 at the projecting position X is fitted.
0 pivot bracket 32 on with, and two positions where the operating piece 9, 9 projects, the normal on the switch 23 that operates by operating piece 9 projecting hits, the dummy portion 61 of the dead Lower bracket 55 housed in a position-replaceable manner
Equipped.

For example, in the case of an opening door that opens into the corridor, first, the pin 53A is moved backward by pulling the first operating body on the corridor side, and the release bracket 6A and the slide piece 10 are both moved backward to engage. The operation piece 9, which releases the locking of the locking rod 4 by the stopper 5 and hits the dummy portion 61, is moved to the slide piece 10.
And project through the connecting body 45 and the wing piece 60. When the door is opened, the switch 23 is turned on.

When the user enters the small room and pulls the second operating body, the pin 53B moves backward, and only the release bracket 6A moves backward to allow the locking rod 4 to retreat, and when the opening door is closed,
The operating piece 9 hits only the dummy section 61 and the switch 23
, The switch 23 keeps on.

When the second operating body is pushed to leave the room, the pins 53 are pressed.
B is moved forward, and only the release bracket 6A is moved forward to lock the lock rod 4.
Can retract and open the door. At this time, the switch 23 is kept on.

Next, when the first operating body is pressed to close the opening door, the release bracket 6A and the slide piece 10 both move forward by the forward movement of the pin 53A, and the closing by the opening door is enabled. At the same time, the operating piece 9 that is in contact with the switch 23 is made to protrude, and the normally operating switch 23 is turned off by being pushed by the operating piece 9.

In this embodiment as well, the opening door is open outward, but it can be opened inward. In this case, the push / pull operations of the first and second operating bodies are reversed, and the position changeable switch 23 is used. And the dummy part 61 are turned upside down,
A similar function can be obtained, and the number of part numbers can be reduced.

[0060]

As described above, the door switch device of the present invention has the following features.
First and second operating bodies having handles disposed on both sides of the opening door and moving in the same direction as the push and pull of the opening door, and a neutral position by operating the first and second operating bodies in the same direction. A lock that moves back and forth to release the locking of the locking rod by the locking tool, and an operating piece that protrudes at different positions by operating the first operating body and turns on and off a switch provided on the receiving tool. The main body is opened and placed on the door. Therefore, for example, since the movement of the operation piece due to the operation of the second operating body facing the toilet can be eliminated, an erroneous operation such as a switch cutoff due to the operation of the second operating body can be reliably prevented. Second
Open the handle of the operating body and operate it in the same direction as pushing and pulling the door to release the lock of the lock rod and turn on the switch,
Since it can be turned off, even a person who does not know the operation principle can operate the first and second operating bodies reliably and easily without erroneous operation, can improve the operability, and can improve the conventional lever handle. There is no need to twist the wrist like this, and the switch can be turned on and off automatically by opening and closing the door conveniently for children and the elderly.

Further, the switch is a proximity switch.
To ensure that the switch is turned on and off by the moving operating piece.
sell.

Note that the door switch device of the present invention
A so-called inward opening that opens toward a small room such as an ile and the door opens.
And open to the corridors etc.
Wear.

In the invention according to claim 2, the lock rod is
Front fitting that retracts while falling down, and fall of this front fitting
And a rear bracket that can be moved backward by
When the stopper is provided with a stop surface, the protrusion of the lock rod,
Operate the immersion smoothly by protruding and falling down of the front bracket
Release bracket that can be operated by operating the first and second operating bodies
In conjunction with the release of the locking device from the rear bracket due to the back and forth movement of
The hinged door can be opened and closed with good operability.

Further , in the invention according to claim 3, the first operation
It is alternatively held with the operation of the crop and is attached to the working piece.
A slide piece is provided that is linked to move this working piece.
Sometimes, through the slide piece by the operation of the second operating body
Movement of the operating piece can be prevented more reliably.
Error such as switch-off by the second operating tool in the
Movements can be eliminated and, for example, the first
Operation piece can be securely moved via slide
It can be moved, and switching on and off is convenient without malfunction
It can be done at will.

[Brief description of the drawings]

FIG. 1A is a cross-sectional view illustrating one embodiment of the present invention,
(B) is a plan view showing the locking rod in an enlarged manner, and (C) is a plan view showing a closed state of the opening door.

FIG. 2 is a partially exploded perspective view showing one embodiment of the present invention.

FIG. 3 is a transverse sectional view showing first and second operating bodies.

FIG. 4 is a diagram showing the operation of the door switch device of the present invention.

FIG. 5 is a diagram showing the operation of the door switch device of the present invention.

FIG. 6 is a diagram showing the operation of the door switch device of the present invention.

FIG. 7 is a diagram showing the operation of the door switch device of the present invention.

FIG. 8 is a diagram showing the operation of the door switch device of the present invention.

FIG. 9 is a diagram showing the operation of the door switch device of the present invention.

FIG. 10 is a diagram showing the operation of the door switch device of the present invention.

FIG. 11 is a diagram showing the operation of the door switch device of the present invention.

FIG. 12 is a diagram showing the operation of the door switch device of the present invention.

FIG. 13 is a sectional view showing another embodiment of the present invention.

FIG. 14 is a partial perspective view thereof.

FIG. 15 is a partial sectional view showing the operation of the operation piece.

FIG. 16 is a partial sectional view showing the operation of the operation piece.

[Explanation of symbols]

 2 Receiving Tool 3 Lock Body 4 Locking Rod 5 Locking Tool 6, 6A, 7 Release Metal 9 Working Piece 10 Slide Piece 11A, 11B Handle 12 First Operating Body 13 Second Operating Body 14 Engaging Surface 15 Guide Surface 16 Front end 17 Front fitting 19 Rear fitting 20 Hole 21 Spring means 22A, 22B For the time being 23 Switch 24 Proximity switch D Opening door X Projection position Z Neutral position

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05B 7/00 E05B 13/08 E05B 17/22

Claims (3)

(57) [Claims] 1. A metal fitting (2) provided on one side edge of a wall opening, and a lock body (3) provided on a free edge of an opening door D pivotally supported by the other side edge of the wall opening. A lock switch (4) comprising: a lock body (3), which can protrude from the free edge of the opening door D and can move forward and backward, and can move back and forth; (5) that locks irreversibly at the projecting position
First and second operating bodies (12) and (13) having grips (11A) and (11B) arranged on both sides of the opening door D and moving in the same direction as pushing and pulling of the opening door D; The first and second operating bodies (12) and (13) are moved back and forth from the neutral position by operating in the same direction, and the forward and backward movement causes the locking member (5) to lock the locking rod (4). The release bracket (6), (7), or (6A) to be opened and the first operating body (1
An operation piece (9) protruding at a different position from the free edge of the opening door D by the operation of 2), and the metal fitting (2) is provided with a hole (7) into which the locking rod (4) is fitted. 20) and a proximity switch (23) that is turned on and off by a protruding operating piece (9). 2. The locking rod (4) has an engaging surface (14) extending in the front-rear direction and a guide surface (1) oblique to the front-rear direction.
A front metal fitting (17) that is drawn toward the free edge side while being pushed down toward the guide surface (15) by being pressed against the engaging surface (14), and the front metal fitting (1).
7) The rear fitting (1) which can be moved backward by the fall of the front fitting (17) and is urged forward by the spring means (21).
9), and a rear surface (22A) in which the locking member (15) is locked to the rear fitting (19) so as not to be retracted;
The door switch device according to claim 1, wherein (22B) is provided. 3. The lock body (3) has a slide piece (10) that is selectively held at a front position (U1) or a rear position (U2) with the operation of the first operating body (12). 2. The door switch device according to claim 1, wherein the actuating piece moves in conjunction with the slide piece.