JPH0335817Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention operates the switch by operating the operating body.
This invention relates to a door device that can be turned on and off and maintained in the on state as necessary.

Conventionally, lighting fixtures, heaters, etc. are turned on when entering and exiting a room, either by operating a switch before entering the room or by operating a switch after entering the room, but in both cases there is no way to turn on or off the lights. Therefore, it is necessary to operate a switch separate from the operation of opening and closing the door, and it is easy to waste electricity due to forgetting to turn off the switch.

In order to solve some of these drawbacks, the present inventors have proposed Japanese Patent Application No. 57-93753 (Japanese Unexamined Patent Publication No. 58-93753).
209823), operating bodies are provided on both sides of the door,
Moreover, by making it possible to close an electric circuit by closing an operating body, a door that can automate the lighting of lighting fixtures, etc., and also facilitates the lighting operation even when the room to be entered is a dark room. proposed a device.

However, this system automatically lights up when a single person enters or exits a room, such as a washroom, by operating an operating tool, and does not work well when multiple people enter or leave a room.

The present invention aims to provide a door device that can be suitably adopted in such cases, and one embodiment thereof will be described below with reference to the drawings.

1 to 4, the door device of the present invention can turn the switch S on and off using first and second operating bodies 3 and 4 arranged on both sides of the door D, and also has a holding metal fitting 5.
can be used to maintain the ON state.

Door D opens two spaces R inside and outside the building or inside the building.
1, open and close the opening provided in the wall W that partitions R2,
Further, the door D is formed, for example, as a single door that opens toward the space R2.

The first and second operating bodies 3 and 4 consist of handles that protrude from the lock body 1a and are rotatably attached to both sides of the door D. In addition, the lock body 1a, as illustrated in FIG.
A lock rod 11 is attached to the tip of the door D and is biased forward by a spring 10 inside the case 9.
This locking rod 11 has an abutment piece 12 formed from the tip thereof, which is at its full protruding position A where it abuts against the front 13, and when the locking rod 11 is pulled toward the front 13 side and retreated, and is almost inside the front 13. It is stored so that it can be reciprocated between a retracted position B where the door D can be opened by retracting. Further, the locking rod 11 has an engagement piece 15 on its upper surface, which has a cutout groove 14 recessed in its upper end surface.

Furthermore, the locking rod 11 is connected to the first and second levers 1.
When the pins 19a and 20a facing each other at the tips of 9 and 20 move the engagement piece 15 backward, the fully protruding position A
The spring 10 moves the pins 19a and 20a forward to the fully extended position A.

The first and second levers 19 and 20 extend from boss portions 22 and 23 of the first and second operating bodies 3 and 4, respectively, which are supported concentrically and movably separately on the case 9. Further, the lock rod 11 is provided with a rectangular groove 18 cut out at a predetermined depth on the lower surface, and the centers of the boss portions 22 and 23 are located approximately in the middle of the rectangular groove 18 in the height direction. Further, in a free state in which the handles 3a, 4a extending from the boss portions 22, 23 are horizontal and the lock rod 11 is located at its fully protruding position A, the first and second levers 19, 20 are tilted forward, and the pin 19a , 20a slightly in front of the engagement piece 15.
be located apart from each other.

Note that the spring 19a of the first operating body 3 extends inward to a position beyond the notch groove 14.

Further, a hanging piece 29 is attached to the lock main body 1a, which is pivotally supported by a bearing piece 27 that hangs down from the upper piece of the case 9, and which engages with the notch groove 14. The hanging piece 29 has a stepped portion 31 formed at the rear thereof, is pressed downward by a spring 32, and is fitted into the notched groove 14. Therefore, by retracting the engaging piece 15, the front surface of the engaging piece 15 can be locked, and the lock rod 11 can be held at the half-extended position C between the fully extended position A and the retracted position B. The pin 19a extends beyond the cutout groove 14, and in the forward movement state where the stepped portion 31 and the engaging piece 15 are aligned, the upper surface of the pin 19a touches the lower surface of the hanging piece 29. , pushed up above the notch groove 14. As a result, depending on the rotation operation of the first operating body 3,
The engagement between the hook piece 29 and the engagement piece 15 is prevented, and even when they are engaged, the engagement can be released.

In this way, the pin 19a is attached to the hanging piece 29 in this example.
It constitutes a release piece that releases the engagement between the engagement piece 15 and the engagement piece 15 together with the rotating operation of the operating body 3.

Note that both sides of the tip of the lock rod 11 are formed parallel to each other, so that when the lock rod 11 is protruded to the full protrusion position A by releasing the operating body 3, 4 after the door is opened,
A blocking portion 33 that prevents the door D from closing is configured.

Door D is attached to the opening frame F that the door is facing,
A receiving plate 1b into which the lock rod 11 is fitted is provided. Also receiving plate 1
A locking hole 35 into which the blocking portion 33 can be inserted is bored in b. The locking hole 35 communicates with a hole 36 recessed in the vertical frame member F, and the switch S made of, for example, a micro switch is housed in the hole 36 with its operating end 37 facing outward. . In this example, the switch S is normally closed, turning off when pressed, and is connected to an electric circuit EC to which electric appliances E such as a lighting fixture L, ventilation fan F, and heater H are connected, as shown in Fig. 4. Ru. In addition, switch S operates relay R by ON operation, making contact a (make contact).
The electric appliance E can be energized by r. Note that the electric circuit EC can also be directly driven by a switch without using the relay R.

The holding fitting 5 consists of a locking pin 40 that is loosely inserted into the outer wall 22a and inner wall 22b of the boss 22 shown in FIG. (shown in the figure) are facing each other. The locking pin 40 is connected to a spring 43 between the flange 42 that contacts the inner surface of the outer wall 22a and the inner wall 22b.
It can be pushed inward against the Also, locking pin 40
is the blocking surface 1 of the rectangular groove 18 due to its protrusion.
7 can be locked at the half-extended position C of the lock lever 11.

The extrusion piece 41 uses a threaded shaft that is screwed into a threaded cylinder 45 on the inner surface of the boss 23, and the cut-off portions 41a on both sides thereof engage with rotation prevention pieces 46 on the inner surface of the case to prevent rotation. Also, by providing a rough thread groove, the extrusion piece 4 can be pushed out by a small rotation of the boss 23.
1 protrudes, and the locking pin 40 in the protruding position
can be pushed back to its original position.

Next, the operation of the door device will be explained.

After exiting from space R2 to space R1, in the closed state where the person who enters the room does not exist in space R2,
The operating end 37 of the switch S is pressed by the lock 11 in the fully extended position A, turning it OFF and opening the electric circuit EC. As a result, electric appliance E is turned off.

Next, when entering the space R2 from the space R1, the handle 3a of the first operating body 3 is pushed down. the result,
As shown in FIG. 5, the pin 19a of the first lever 19 allows the locking rod 11 to be retracted to the retracted position B through the engagement piece 15, allowing the door D to be opened. Also lock rod 11
Switch S is turned on as the motor moves backward. As described above, the first operating body 3 does not engage the latch piece 29 and the engagement piece 15, and therefore the first operating body 3 can freely move the lock rod 11 forward and backward.

After opening the door D, enter the lit space R2, release the first operating body 3, and enter the space R2.
The second operating body 4 located on the side, that is, on the side through which the door D has passed, is grasped again. Also, the door D is closed using the handle 4a. As mentioned above, in the free state, the lock lever 1
1, that is, the blocking portion 33, protrudes to the fully protruding position A, and therefore, when closing, the second operating body 4 linked to the lock lever 11 must be operated. Therefore, the lock rod 11 is retracted to the retracted position B to enable the closing operation. Furthermore, as a result of this operation, the engagement piece 15 moves back to the retracted position B so that the lock lever 11 pressed by the pin 20a. Moreover, when the second operating body 4 is released to close the door, the stepped portion 31 of the hook 29 engages with the engagement piece 15 (as shown in FIG. 6) during the return stroke of the lock rod 11 by the spring 10. The lock rod 11 is positioned at the semi-protruding position C. In this position C, the operating end 37 of the switch S is spaced apart from the locking rod 11, so that the switch S maintains the illuminated state of the electric circuit EC. Note that even if the second operating body 4 is repeatedly operated, the hooking piece 29 and the engaging piece 15 are always locked. Therefore, when leaving the room, the first operating body 3 is maintained at the semi-extended position C until it is operated.

By operating the first operating body 3 when leaving the room,
As mentioned above, the pin 19a which is the release piece is connected to the hanging piece 29.
Push up to release the engagement with the engagement piece 15. As a result, the lock rod 11 protrudes and presses the switch S.
By turning OFF, the electric circuit EC is opened.

Next, the function of the holding fitting 5 will be explained.

If a person has already entered the room and the next person enters the room, the first operating body 3 is operated to release the engagement between the hooking piece 29 and the engaging piece 15 that was operated by the previous person. However, as described above, the lock 11 is retracted at the same time as the door is opened, and by turning on the switch S, the lighting state can be maintained in the same manner as when the room was first entered.

Furthermore, when the preceding person leaves the room while leaving the person in the room, the holding metal fitting 5 is used. When closing the door after leaving the room, the person in advance presses the locking pin 40 of the holding fitting 5 while operating the first operating body 3 . This results in
The locking pin 40 engages with the locking surface 17, and in this embodiment, the locking pin 40 allows the locking rod 11 to be "directly" moved to the semi-extended position C without using any other object. Lock it with. Therefore, the lighting state can be maintained.

On the other hand, when the remaining occupant leaves the room, by rotating the second operating body 4, the push-out piece 41 screwed into the threaded cylinder 45 pushes back the locking pin 40 as described above. Therefore, similar to the above,
The light goes out when the door is closed after leaving the room. Furthermore, at this time,
Naturally, the locking pin 40 is not pressed.

8 to 12 illustrate cases in which another lock body 1a is used, and in this example, the door D is a single-swinging door that opens toward the space R2 as shown in FIG.
A case will be explained taking as an example a case where a room R2, which is a living room, is entered from a space R1.

The first lever 19 of the first operating body 3 located on the space R1 side is fixed integrally with the boss portion 50.
The boss portion 50 has a square hole 5 in the center of which a support shaft 56 passes.
2 is bored, and a release piece 53 is rotatably supported on the outside. The release piece 53 has a circular shape, and a protrusion 54 that is smoothly connected to the outer peripheral piece in an arc shape is formed in a part of the release piece 53 . Further, in this embodiment, the release piece 53 engages with and disengages from the first lever 19 via the holding fitting 5, and as described later, the holding fitting 5 thereby holds the locking rod 11 at the semi-extended position C. It can be held "indirectly" via the first lever 19. The holding fitting 5 includes a locking pin 40 that can pass through a hole in the first lever 19 and be inserted into a hole 55 provided in the release piece 53. Also, this locking pin 40
protrudes outward at the tip of an arm 59 provided at the inner end of the sliding spring 57 passing through the support shaft 56 of the first operating body 3. Further, the sliding pin 57 is provided with a head 58 that protrudes from the first operating body 3, and by pressing the head 58, the locking pin 40 is pulled out from the hole 55. This prevents the release piece 53 and the first lever 19 from rotating together.

Further, the second lever 20 can revolve around the boss portion 60. Further, the second lever 20 is provided with a fan-shaped cutout groove 62 into which a contact piece 61 provided on the boss portion 60 is inserted with some play. The rear surface of the cutout groove 62 abuts against the contact piece 61 in the free position where the second lever 20 is tilted forward. Further, on the rear back surface of the second lever 20, the protruding portion 54 of the first lever 19 is provided.
A triangular protrusion 65 having a locking surface 63 with a smaller protrusion than the protrusion 54 is formed with a slightly different phase in the front direction than the protrusion 54 .

Also, inside the case 9 is a hanging piece 29 that moves horizontally and is biased forward by a spring 67.
is placed at a position separated by an angle of about 60 degrees from the locking surface 63 of the protrusion 65.

A guide groove 71 is provided in the lock rod 11, and pins 19a and 20a protruding in opposite directions at the tips of the first and second levers 19 and 20 can freely move in the guide groove 71. Further, the first and second levers 19 and 20 are always urged forward in a forward tilted state using springs. Similarly, the operating bodies 3 and 4 can be pressed down and rotated using appropriate spring means, and the handles 3a and 4a are normally positioned horizontally. Further, the release piece 53 can automatically insert the locking pin 40 into the hole 55 by means of a spring when the handle 3a is in a horizontal state in a free state by means of a biasing means and a positioning means (not shown).

Therefore, in this example, by tilting the first lever 19 backward using the operating body on the entry side, that is, the first operating body 3, as illustrated in FIG. It can be moved from an extended position A to a retracted position B and returned to a fully extended position A by means of a spring. In addition,
When the holding fitting 5 is not pressed, the protruding portion 54 of the release piece 53 freely retreats the hanging piece 29, and the lock rod 11 can be moved to the fully protruding position A. Also, by opening the door, switch S is turned on in the same manner as above.

Further, by operating the second operating body 4, the contact piece 61 pushes the rear surface of the notch groove 62, causing the second lever 20 to tilt backward. Thereby, the lock rod 11 can be similarly retracted to the retracted position B. At this time, the protrusion 65 is positioned over the hanging piece 29. Also, during the return stroke of the locking rod 11, the hooking piece 29 engages with the locking surface 63 of the protrusion 65, as shown in FIG. As a result, the second lever 20 is held in a backwardly tilted state, and therefore the lock rod 11 is held by the pin 20a. In this way, the latch 29 via the second lever 20 locks the lock rod 11 in the semi-extended position C between the fully extended position A and the retracted position B. Note that only the operating body 4 can go backwards and return horizontally through the notch groove 62.

Furthermore, when pressing and rotating the operating body 4 from the space R2 side when leaving the room, the lock rod 11 is simply moved between the semi-extended position C and the retracted position B by the second lever 20.
It moves back and forth between. After leaving the space R1, the first
When pressing down the operating body 3 and performing rotation operation, press the 13th
As shown in the figure, the protrusion 54 of the release piece 53 moves the hook 29 back beyond the locking surface 63 and releases the lock of the protrusion 65. This causes the second lever 20 to return to its forward tilted state and return to the free state shown by the solid line in FIG.

When exiting the room leaving the occupant behind, the first operating body 3
At the same time as the operation after leaving the room, the head 58 of the sliding pin 57 of the holding fitting 5 is pushed. As a result, the locking pin 40
is removed from the hole 55, and the release piece 53 stops rotating. Therefore, the hook 29 is connected to the second lever 2.
0 at the semi-extended position C, and keep the switch S in the ON state. As described above, in this embodiment, the locking pin 40, which is the holding fitting 5, is pulled out from the hole 55 and the release piece 53 is not operated, so that the lock rod 11 is "indirectly" moved to the semi-extended position C. This means that it can be maintained. Further, by releasing the head 58, the first lever 19 returns and the locking pin 40 is automatically inserted into the hole 55.

In this way, the door device of the present invention has a fully protruding position,
It includes a locking lever that is held in a retracted position and a semi-extended position therebetween. As a result, the lock lever can be opened and closed when the switch is moved to the fully extended position, and the ON and OFF states can be different between the fully extended position and the half extended position, and the device is used to automatically turn on and off the light when the door is opened and closed. It can be used as

Further, when the second operating body is operated, the lock rod which is locked by the latch in the semi-extended position can be returned to the fully extended position when the release piece of the first operating body is rotated, thereby improving operability. .

Further, the first operating body is further provided with a holding fitting capable of holding the lock rod in a semi-extended position. Therefore, by operating this holding fitting if necessary, the lock rod can be held in a semi-protruding position regardless of the release piece,
For example, it can be used to keep the lights on in a room even after one person leaves, and can be used as an automatic light-on/off device for a room where multiple people come in and out.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a perspective view illustrating the inside of the lock body, Figure 3 is a perspective view illustrating the holding fitting in detail, Figure 4 is a circuit diagram illustrating the electric circuit, and Figures 5 to 7 are line diagrams showing its operation. , FIG. 8 is a perspective view showing the lock body of another embodiment, FIG. 9 is a sectional view thereof, FIG. 10 is a diagram illustrating its installation, and FIGS. 11 to 13 are diagrams showing its operation. be. 3...First operating body, 4...Second operating body, 5
...Holding metal fitting, 29... Hanging piece, 19a, 53...
Release piece, D...door, E...appliance, S...switch.

Claims (1)

[Scope of utility model registration request] A lock body that is attached to the tip of a swinging door and has a lock that moves between a fully protruding position where the door protrudes from the door and a retracted position where the door can be opened; a switch that opens and closes when the door is moved to a fully protruding position; A first operating body and a second operating body that move the lock from the fully extended position to the retracted position, and a half-way between the fully extended position and the retracted position during the spring return stroke of the lock from the retracted position to the fully extended position. A latch piece that locks the lock rod at the protruding position, and the first operating body is configured to release the locking of the lock rod by the latch piece when the first operating body is rotated. A door device comprising a release piece and a holding fitting that holds the lock rod in a semi-extruded position.