JP3155420B2 - Suspension device for self-closing door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-closing of an open door, and a predetermined time until the self-closing is started.
This is a temporary stop device for the self-closing door body in which the open posture is maintained.

[0002]

2. Description of the Related Art In general, a self-closing mechanism for automatically closing an opened door body has a weight attached to the other end of a wire connected at one end to a support member of the door, and a pulley attached to the door body. The weight is moved up and down according to the movement of the door body, and the door body is automatically closed by the lowering of the weight, and a winding machine that winds the wire with a predetermined strength instead of the weight is provided. There was something.

[0003] Such a self-closing door body operates in such a direction that the door body immediately closes when an open hand is released. Therefore,
When this is installed at the entrance of a hospital room, when moving a bed, when a person with a low walking speed such as a pregnant woman or an infant passes, or when passing through a wheelchair, etc. Sometimes it was in the way.

Therefore, several techniques have been devised for a temporary stop device for temporarily stopping the self-closing of the door while a pedestrian or the like passes through the opened door body. As one of them, a self-closing mechanism forcibly transferring the door body in the closing direction, an operating body that moves with the opening operation of the door body, a timer device that is set in response to the movement of the operating body,
A regulating mechanism is provided for regulating the closing operation of the self-closing mechanism in connection with the setting of the timer device, and an operating body is set between the operating body and the regulating mechanism with respect to the timer device. In some cases, a restricting means for restricting the restricting operation of the restricting mechanism is provided. (Actual fairness 5
No. 33654)

According to the above construction, the operation plate mounted on the timer device containing the mainspring spring and the swing lever are integrally rotated by the operation pin that moves together with the door to set the timer device. -The door is opened against the mainspring when the swing lever rotates.
There has been a problem that a change occurs in the opening force and the opening speed, and a smooth movement cannot be obtained when the door is opened.

If the door is accidentally closed while the operating body is in the set operation range with respect to the timer device, the door is not related to the self-closing device (operating wire).
The transfer member attached to the wire remains positioned on the winding device side on the door bottom side. In this state, the operation time of the timer device is expired and the self-closing function is restored, and when the wire, that is, the transfer member is suddenly moved to the closing side with the winding operation of the winding device on the door end side, the transfer member is attached to the operation bracket. A collision may occur, generating a loud collision sound or damaging the operation bracket or the transfer member, which has a problem of affecting the operation of the door.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem. When the door is opened beyond a width that allows a person to pass through, the opening posture is always maintained for a predetermined time and the opening posture is maintained. It is an object of the present invention to provide a very practical door body suspension device which is excellent in usability without being replaced by the self-closing operation after a predetermined time has elapsed even if the door is closed by mistake.

[0008]

Means for Solving the Problems To solve the above problems,
The first feature of the present invention is that when the door is opened beyond the pass width of a person, the timer is set in response to the movement of the door, and the function of the self-closing device when the timer is set. A self-closing restricting device that temporarily stops, and a self-closing return device that stops the function of the self-closing restricting device when the door moves in the closing direction when the timer is activated, and sets the timer to an initial state. is there.

A second feature of the present invention is that the timer is closed by an instantaneous closing of the first limit switch which is instantaneously closed and opened when the door is opened and opened more than the passage width of a person. A timer is set in accordance with the closing of the switch, the self-closing restricting device is linked with a solenoid operated by closing of the relay switch, and the self-closing return device opens when the door moves in the closing direction when the timer operates. The timer and the solenoid are returned to the initial state by the second limit switch, and the relay switch is opened by the instantaneous opening of the time limit relay of the timer which opens and closes momentarily with a time limit.

[0010] A third feature of the present invention is that the self-closing restricting device is provided with a position for preventing the self-closing of the door by pressing against a wire that pulls the door in the closing direction in conjunction with the movement of the solenoid; And a pressure contact member which can be shifted to a position where the door is closed by being separated from the door.

A fourth feature of the present invention is that the pressure contact member comprises a roller which is rotatable for the movement of the wire in the direction in which the door opens, and which is non-rotatable for the movement of the wire in the closing direction. It is.

A fifth feature of the present invention is that the self-closing return device opens the second limit switch in accordance with the slack of the wire generated when the door is moved in the closing direction when the door is temporarily stopped. It has a switch operating body.

[0013]

According to the first feature of the present invention, even if the door moves in the closing direction when the timer is activated,
The function of the self-closing restriction device is stopped by the self-closing return device, the timer is initialized, and the operation is the same as when the door is self-closed.

According to a second feature of the present invention,
The timer, the self-closing restriction device, and the self-closing return device are each electrically operated instantly without being affected by the opening speed of the door.

According to a third feature of the present invention,
The pressure contact member of the self-closing control device is moved to a position where it presses against the wire of the self-closing device and a position where it is separated from the wire, so that the movement of the wire in the self-closing direction is prevented or not. Depending on the position of the press-contact member, it is in either a self-closed state or a non-self-closed state.

According to a fourth feature of the present invention,
The crimping member is rotatable for the movement of the wire in the direction in which the door opens, and cannot be rotated for the movement in the closing direction, so the door does not self-close, but does not block the movement in the opening direction. .

According to a fifth feature of the present invention,
The second limit switch is opened according to the looseness of the wire generated when the door moves in the closing direction during the timer operation, so that the timer and the solenoid return to the initial state.

[0018]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view showing a state in which a door pocket panel and a rammer panel are removed from a hanging door device provided with the present invention for explaining the outline of the present invention. Reference numeral 1 denotes a suspension door support member disposed between upper portions of left and right columns of a three-way frame attached to a wall opening, and reference numeral 2 denotes a slide holding member and a slide member provided on the suspension door support member 1. 2 shows a door slidably suspended through the door.

The door 2 has a function of self-closing when the hand is released at a manually opened position by a self-closing device including a wire 20, a pulley 21, a second pulley 23, and a weight 22.

That is, the weight 22 is held inside the end of the door pocket so as to be able to move up and down, and the end of the wire 20 attached to the upper end is attached to the open end of the hanging door support member 1. It is attached to a wire holding member 24 provided on the closed side of the door 2 via a pulley 21 and a second pulley 23 provided above the closed side end of the suspension door support member 1.

When the door 2 moves to the left (to open the door) in FIG. 1, the end of the wire 20 is attached to the wire holding member 24 of the door 2, so that the second pulley 23 and the pulley The weight body 22 moves upward with the movement of the door 2 via 21. Then, when the hand is released in a state where it is moved to the desired range, the weight of the weight body 22 is loaded on the pulley 21 and the second pulley 23 via the wire 20, and the second pulley 23 is attached to the hanging door support member 1. The wire 20
Pulls the door 2 rightward (closing direction) to close it.

Reference numeral 5 denotes a self-closing restricting device provided near the pulley 21. Reference numeral 7 denotes a self-closing return device having the second pulley 23. The self-closing control device 5 includes a limit switch 1 attached to the suspension door support member 1.
1, a timer 12, a relay switch 13, and a solenoid 14 mounted adjacent to the self-closing control device 5. Reference numeral 15 denotes a terminal board, and reference numeral 16 denotes a second limit switch provided near the self-closing return device 7. In addition, the wire holding member 24 protrudes above the hanging door support member and also serves as an operation projection for operating the limit switch 11 when the door 2 is opened.

When the door 2 is in the closed state, the distance between the limit switch 11 and the wire holding member 24 is set to be equal to or larger than the passage size of a person (60 cm in the embodiment).
That is, the self-closing restriction device 5, the self-closing return device 7, the limit switch 11, the second limit switch 16, the timer 1
2. Wiring work is easy because all members that require electrical wiring processing, such as the relay switch 13 and the solenoid 14, are attached to the suspension door support member 1 side (fixed member side).
Further, if it is assembled in a factory or the like to form one member and is attached to the suspension door support member 1, the assembling work is further facilitated.

When the limit switch 11 is momentarily closed by the wire holding member 24 with the movement of the door 2 to the open side as shown in FIG. 9, the relay switch 13 (130) is closed. The time limit relay 12 incorporated in the timer 12 and the solenoid 14, which are opened immediately after the time limit, operate. The self-closing control mechanism 5 is operated by the operation of the solenoid 14, and the door 3 is kept open for a predetermined time after the timer 12 is operated in a state where the opening operation of the door 2 is completed.

When a predetermined time has elapsed, the time limit relay 121 incorporated in the timer 12 is instantaneously opened, and accordingly, the relay switch 13 (1) is opened.
30) is in an open state, the solenoid 14 is returned, the operation of the self-closing control device 5 is stopped, and the closing movement of the door 2 starts.

On the other hand, if the door 2 is accidentally closed while the door 2 is opened and temporarily stopped (the self-closing restricting device 5 is in operation),
As the wire 20 becomes loose, the second limit switch 16
Is opened, whereby the relay switch 13 (130)
Is opened, the time limit relay 121 is also opened, the timer 12 and the solenoid 14 are returned to the initial state, and in conjunction with this, the operation of the self-closing restriction device 5 is stopped, and the door 2 is closed by self-closing. It becomes the same state as.

As shown in FIGS. 2 to 5, the self-closing restricting device 5 is mounted on the board 6 together with the solenoid 14 and the pulley 21, and the board 6 is composed of a front piece 61, a horizontal piece 62 and a rising piece 63. A rubber sheet 60 is stuck on the back surface of the front piece 61 and the horizontal piece 62, and the door support member 1 is formed.
It is screwed to. The rubber sheet 60 absorbs electric vibration of the solenoid 14.

The solenoid 14 is attached to the back side of an L-shaped solenoid mounting seat 140 fixed to the horizontal piece 62 of the board 6. A connecting fitting 64 is pivotally connected to the end of the plunger 141 on the side of the self-closing restricting device 5 by a connecting screw 142 so as to be rotatable in the horizontal direction, and the other end of the connecting fitting 64 is laterally L-shaped. The end of the operating rod 65 formed of a round bar on the solenoid 14 side is fitted.

The operating rod 65 is a synthetic resin operating rod holding member provided on the front side of an L-shaped mounting seat 66 which is mounted on the horizontal piece 62 of the substrate 6 with a screw so that the mounting position can be changed to a predetermined size. 67 is slidably held in the left-right direction. The end of the operating rod 65 on the solenoid 14 side is a compression spring 65 which is fitted to the small-diameter support projection 65.
2 and a rubber sheet 653, which are fitted into the connection fitting 64, and the other end of the operation plate 5 of the self-closing restricting device 5 whose upper end is pivotally connected to the rising piece 63 of the substrate 6.
1 is in contact with the front of the lower end.

At the upper end of the operating plate 51, a pressure contact member 54 having an outer peripheral protruding edge 53 which is located on the side of the pulley 21 and can be fitted into a concave groove 211 formed on the periphery of the pulley 21 is attached. Lower end of operation plate 51 and rising piece 63 of substrate 6
The pressure contact member 54 is normally urged to be separated from the pulley 21 by a predetermined distance by a tension spring 56 stretched between them. The pulley 21 is rotatably mounted on the rising piece 63 of the substrate 6, and the height position of the rotation center of the pulley 21 and the height position of the rotation center of the operating plate 51 are substantially the same, and the pressing member 54 It is in contact with the outer peripheral end of the pulley 21 at a slightly higher position.

The pressing member 54 is a rotating body having a so-called one-way bearing, and is rotatable counterclockwise in FIG. 2, but has a structure not rotating clockwise.

The self-closing control device 5 is configured as described above,
When the door 2 moves to the open side, the limit switch 11 is momentarily closed by the wire holding member 24, whereby the relay switch 13 (130) is closed, and further, the timer 12 is opened immediately after a predetermined time period. The built-in time limit relay 121 and the solenoid 14 operate.

At the same time, the plunger 141 of the solenoid 14 protrudes toward the door bottom, and the operating rod 65 is moved to the compression spring 6.
It is moved to the door bottom side via 52. Then, the other end of the operating rod 65 pushes out the lower end of the operating plate 51 toward the door ass, rotates the operating plate 51, presses the pressing member 54 against the pulley 21, and moves the wire in the concave groove 211. The outer peripheral edge 53 is pressed against 20.

In this state, when the door 2 is further opened, the wire 20 moves in a direction to raise the weight 22 and rotates the pulley 21 clockwise. At this time, since the pressure contact member 54 is configured to be rotatable counterclockwise, the movement of the wire 20 is not prevented, and the movement of the door 2 to the open side can be smoothly performed without any trouble. Can be.

When the door 2 attempts to move in the closing direction due to the weight of the weight 22 while the opening movement is stopped, the outer peripheral edge 53 of the pressing member 54 comes into pressure contact with the wire 20, and the pressing member 54 Since the weight 54 does not rotate in the direction in which the weight 22 descends (clockwise direction), the weight 22 is connected to the pressing member 54 and the pulley 21 via the wire 20.
And the door 2 does not self-close.

When the predetermined time has elapsed, the time limit relay 121 incorporated in the timer 12 is instantaneously opened, and the relay switch 13 (13
0) is in an open state, and the solenoid 14 is
6 returns to the initial state together with the operating plate 51 and the operating rod 65, the pressing member 54 is also separated from the pulley 21, and the door 2 self-closes.

As shown in FIGS. 6, 7 and 8, the self-closing return device 7 is attached to a mounting plate 71 having an L-shaped cross section, which is screwed to the door end side of the suspension door support member 1. A switch operating body 72 for operating the second limit switch 16,
It is composed of a second pulley 23.

The mounting plate 71 includes an operating body mounting portion 73 for rotatably holding the switch operating body 72 and a switch operating body 7.
The second limit switch 16 is attached to the switch mounting part 74, which is integrally formed at a position above the door tip side of the second door switch, and the second limit switch 16 is normally closed. ing.

The switch operating body 72 mounted on the operating body mounting portion 73 is a flat plate-shaped pulley on the rear side of the operating body mounting portion 73 on the rear surface side, on which the second pulley 23 is rotatably mounted. The switch operating portion 722 is formed integrally with the mounting portion 721 and a lower portion of the pulley mounting portion 721, has a U-shape in the front-rear direction, and has a substantially central portion pivotally connected to the operating body mounting portion 73 so as to be rotatable. Is formed.

The lower end of the switch operating section 722 is close to the switch section 143 of the second limit switch 16, and slightly above the pivoted portion of the switch operating body 72 with the operating body mounting section 73, and the mounting plate 71. By extending a tension spring 720 between the spring mounting seats 710 provided at the front end of the switch operating body 72 in FIG. The second pulley 23 is rotatably mounted on the back side of the pulley mounting portion 721 of the switch operating body 72.

After the wire 20 has been wound around the second pulley 23 and the pulley 21 from the wire holding member 24, the cone 22 is attached to the end of the wire 20 so that the door 2 can be used in a normal use state. The switch operating body 72 is urged in the counterclockwise direction against the tension spring 720 via the second pulley 23, and the switch operating section 722 and the switch section 143 of the second limit switch 16 are separated by a predetermined distance. It is in a state where it has been done. Reference numeral 711 denotes a stopper for preventing the second pulley 23 attached to the switch actuating body 72 from moving more than a predetermined amount to the side of the door due to the weight of the cone 22, and reference numeral 230 denotes a bridge extending over the second pulley 23. 4 shows a retaining cover for preventing the wire 20 from accidentally coming off.

The self-closing return device 7 is configured as described above. If the door 2 is erroneously moved in the closing direction while the self-closing restricting device 5 is in operation, the wire 20 is connected to the pulley 2.
Since the wire 20 is held by the pressure contact member 1 and the pressure contact member 54, the wire 20 sags between the pulley 21 and the wire holding member 24 of the door 2. Then, since the weight of the cone 22 hanging on the second pulley 23 is released, the switch operating body 72 is rotated clockwise in FIG. 6 by the tension spring 720, and the switch operating portion 722 is moved to the second position. It is pressed against the switch part 143 of the limit switch 16.

As a result, the second limit switch 16 is opened as described above, and the relay switch 13 (1
30) is opened, the time limit relay 121 is also opened, the timer 12 and the solenoid 14 also return to the initial state, and in conjunction with this, the operation of the self-closing restriction device 5 is stopped, and the door 2 is in a self-closed state. Closed.

[0044]

According to the present invention, when the door is accidentally closed in the temporary stop state, the self-closing function is restored when the temporary stop state of the door is released after a predetermined time. Even if there is no collision sound or damage to members caused by the accident, even if it is closed accidentally in the state where the opening posture is maintained, after the lapse of a predetermined time, it does not change at all from the self-closing, and it is excellent in usability It is very practical.

(1) Therefore, according to the first aspect of the present invention, when the door is closed when the timer is activated due to the provision of the self-closing return device for setting the timer to the initial state, the self-closing restricting device is provided. Since the function is stopped, the door is closed in the same state as at the time of the self-closing, and there is no influence on the subsequent opening and the like, which is very convenient.

(2) According to the second aspect of the present invention, in addition to the effect of the above (1), the timer, the self-closing restricting device, and the self-closing return device are each electrically operated and operate instantaneously. Therefore, since it is not affected by the opening / closing speed of the door, it can be used effectively regardless of the movement of the bed or the passing of a pregnant woman, infant or the like.

(3) According to the third aspect of the invention, in addition to the effects of (1) and (2), the pressing member is shifted to a position where the pressing member is pressed against the wire and a position where the pressing member is separated from the wire. There are cases where the movement of the wire in the self-closing direction is prevented and cases where the movement is not performed, and the door can be in a self-closing state or in a state where it is not.

(4) According to the fourth aspect of the invention, in addition to the effects of (1), (2), and (3), the pressing member is rotatable in the movement of the wire in the direction in which the door opens. Because the door is not rotatable in the closing direction, even if the pressure-contact member presses against the wire during the opening of the door and the self-closing restriction function is activated, the movement of opening the door will be accompanied by the movement of the wire. Since the pressure contact member rotates, the movement of the door does not change or the opening force does not increase at all.

(5) According to the fifth aspect of the present invention, in addition to the effects of (1), (2), (3), and (4), the switch that opens the second limit switch as the wire becomes loose. If the door is erroneously closed while the self-closing restricting device is functioning, the wire laid over the second pulley is loosened, and at the same time, the switch is moved to the second limit. When the switch is opened and the door is in the same state as when the door is self-closing, if the door is closed and the specified width is opened again,
The self-closing control device is operated again, and is not affected by the method of use, and is very convenient.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of the present invention.

FIG. 2 is a front view of a self-closing control device.

FIG. 3 is a plan view of a self-closing control device.

FIG. 4 is a side view of the self-closing control device.

FIG. 5 is a cross-sectional view of a main part of a connecting bracket.

FIG. 6 is a front view of the self-closing return device.

FIG. 7 is a plan view of a self-closing return device.

FIG. 8 is a side view of the self-closing return device.

FIG. 9 is a circuit diagram of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hanging door support member 11 Limit switch 12 Timer 13 Relay switch 14 Solenoid 2 Door 20 Wire 21 Pulley 22 Conical body 23 Second pulley 5 Self-closing restricting device 54 Press-contact member 7 Self-closing return device 72 Switch operating body

Claims (5)

(57) [Claims] 1. A self-closing door having a self-closing device, wherein when the door is opened beyond a pass width of a person, the timer is set in response to movement of the door, and the self-closing device is set when the timer is set. A self-closing restricting device for temporarily stopping the function of the automatic closing control device, and a self-closing return device for stopping the function of the self-closing restricting device when the door moves in the closing direction when the timer is activated and for setting the timer to the initial state. A temporary stop device for a self-closing door body. 2. The timer is set in accordance with the closing of a relay switch which is closed by the momentary closing of a first limit switch which is momentarily closed and opened when the door is opened more than the passage width of a person. The self-closing restriction device,
Interlocking with a solenoid operated by closing the relay switch, the self-closing return device returns the timer and the solenoid to an initial state by a second limit switch that opens when the door moves in the closing direction when the timer is operated, The temporary stop device according to claim 1, wherein the relay switch is opened by an instantaneous opening of a time limit relay of a timer that opens and closes instantaneously with a time limit. 3. The self-closing control device includes a position where the door is constantly pressed against a wire that pulls the door in the closing direction to prevent the door from being closed automatically, in conjunction with the movement of the solenoid, and the door is separated from the wire and the door is automatically closed. The temporary stop device for a self-closing door body according to claim 1, further comprising a press-contact member that can be shifted to a closing position. 4. The pressure contact member according to claim 3, wherein the pressure contact member comprises a roller which is rotatable for movement of the wire in a direction in which the door is opened, and which is non-rotatable for movement in a direction in which the wire is closed. The temporary stop device in the self-closing door body as described in the above. 5. The self-closing return device according to claim 1, further comprising a switch actuating body for opening the second limit switch in accordance with the looseness of the wire generated when the door moves in the closing direction when the door is temporarily stopped. The temporary stop device for a self-closing door body according to claim 1 or claim 2, claim 3 or claim 4.