JPH0941775A - Closing device for hinged door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve facility, to enhance safety and to conduct operation easily by installing a pushing tool on the hinged door side and opening and closing a hinged door by the interlocking mechanism of an operating tool arranged to the hinged door and the pushing tool. SOLUTION: When a closing unit is disposed at the upper place or lower place of a hinged door 3 or both places and an operating unit is arranged at an intermediate place, only a magnet unit and an automatic engaging hook 18 are disposed. When the closing unit, from which a pushing tool is removed, is arranged for releasing a catch, the hinged door 3 is deflected by the magnet unit when the hinged door 3 is opened by using an open-close knob. The hinged door is attracted and detached suddenly, and the discomfortable vibrations of the hinged door 3 are generated. On the other hand, the magnet unit is detached from a section to be caught at an initial stage when the pushing tool is fitted to the closing unit and the hinged door 3 is opened, and the generation of the discomfortable vibrations of the hinged door 3 is prevented and the hinged door is opened smoothly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for closing a hinged door, and more particularly to a device for closing a hinged door provided with catching means for holding the hinged door in a closed limit position by mechanical holding force or magnetic attraction force.

[0002]

2. Description of the Related Art Conventionally, as a device for closing a hinged door, a magnet unit is attached to one of the opening wall and the hinged door, and a ferromagnetic body is attached to the other, and when the hinged door is closed, the magnet unit is attracted to the ferromagnetic body and the hinged door is closed. To which the so-called magnet catch is applied, which is used to hold the door in the closed limit position, or a pair of rollers elastically supported facing each other is attached to one of the opening wall and the swing door, and the swing door is closed to the other. It is known to apply a so-called roller catch, which is formed by mounting a pair of arrow-shaped wedge members that can be fitted between the pair of rollers while pushing the pair of rollers apart.

[0003]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In the hinged door closing device using the above-mentioned magnet catch and roller catch, when the hinged door is closed, the hinged door is always held at the closing limit position by magnetic attraction force or mechanical holding force. Therefore, there is an advantage that there is no risk of rattling easily when the hinged door is closed, and there is no fear of discomfort, but when the hinged door is opened, the magnetic attraction force or mechanical holding force above the predetermined level is required. It is necessary to apply an operating force, and if the hinged door can be strongly held in the closed state, there is a problem that a large force is required to open the hinged door and it is difficult to operate.

In particular, when the opening / closing operation tool for opening the hinged door is arranged in the vertical middle portion of the hinged door and the catch means is arranged in the upper part or the lower part of the hinged door, the upper part of the hinged door or the upper part of the hinged door is opened. Since the lower part is held at the closing limit position by the catching means by a predetermined force, the hinged door is bent, and then the catch is suddenly released, which causes an unpleasant vibration in the hinged door.

In view of the above-mentioned conventional problems, the present invention proposes a hinged door closing device which can be easily opened in a hinged door provided with a catching means and which does not cause unpleasant vibration when the door is opened. To aim.

[0006]

In order to achieve the above object, the present invention provides a catching means (6) and a catch releasing means if the reference numerals in the following embodiments are shown in parentheses for reference. (8) and operating means (9), the catching means (6) holds the hinged door in the closed limit position by a mechanical holding force or a magnetic attraction force, and the mechanical holding force or the magnetic attraction force. Catch member (16) and member to be caught that allow the opening of the hinged door when an opening force greater than the force acts on the hinged door
(11, 41, 49), and the catch releasing means (8) is incorporated in the catching means (6) or disposed in the vicinity thereof, and the catching member (8) of the catching means (6) is 16)
The hinged door to separate the catching member (11, 41, 49) from each other against their mechanical holding force or magnetic attraction force.
The pressing means (23, 47) provided on the (3) side
(9) is an operating tool (27, 31) provided on the hinged door (3), and a pressing tool (23, 31) for the operating tool (27, 31) and the catch releasing means (8).
47) It employs a configuration having an interlocking mechanism that interlocks with.

The operation means (9) is specifically a rotary operation tool (2
7) and a cam (24) that rotates in conjunction with the rotary operation tool (27),
It moves by the rotation of the cam (24) and presses (23, 47)
With moving members (21,45) connected to the
(3) A push-pull operation tool (31) that can be pushed into the open / close knob (30), and a moving member that moves in conjunction with the push-in operation tool (31) and that has the push tools (23, 47) combined. With (21,45).

Preferably, the automatic engaging hook (18) and the engaged member which automatically engage when the hinged door (3) reaches the closing limit position and prevent the hinged door (3) from opening. (11, 41), the automatic engaging hook (18) and the engaged member (11, 41) are such that the hinged door (3) is held at the closing limit position by the catching means (6). The hook means (7) facing each other with a gap (20) between them in the opening / closing direction of the hinged door (3) and the operating tool (2
The automatic engaging hooks (18) are interlocked with the engaged members (11,
41) It can be provided with an interlocking mechanism for separating from.

Further, the catching means (6), the catch releasing means (8), and further the hooking means (7) are arranged at either or both of the upper position and the lower position of the hinged door (3), The operation means (9) can be arranged at a position separated from the.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a door closing device of the present invention will be described below with reference to FIGS. 1, 2 and 7 (a).

In FIGS. 1 and 2, 1 is an opening to be opened and closed by a hinged door 3, and 2 is an opening wall thereof. Hinged door 3
As shown in FIG. 7A, the base end side edge thereof is supported by a hinge 4 so as to be openable and closable, and a closing device 5 is arranged at an intermediate position in the vertical direction of the free end side portion. The closing device 5 is composed of a catching means 6, a hooking means 7, a catch releasing means 8 and an operating means 9.

The concrete structure of the closing means 5 will be described. The closing unit 10 is mounted on the side of the hinged door 3 and the hooking metal 11 having an L-shaped cross section is mounted on the side of the opening wall 2. The hook metal 10 serves as both the catch member of the catch means 6 and the engaged member of the hook means 7.

The main body case 12 of the closing unit 10 is attached to the inner surface side of the hinged door 3, and the main body case 12 is provided.
A cylindrical portion 14 that is inserted into and fitted into a through hole 13 that is formed through the hinged door 3 is integrally coupled therewith. An outer peripheral screw 14a having a diameter smaller than that of the base is formed on the outer periphery of the tubular portion 14, the end is closed by an end wall 14b, and a through hole 14c is formed in the end wall. The lid-equipped tubular body 15 is disposed on the outer surface side of the hinged door 3, and the tubular body portion is fitted into the through hole 13 and the female screw 15b formed on the inner periphery is screwed onto the outer peripheral screw 14a of the tubular portion 14. Has been done. Further, a collar 15b that engages with the outer peripheral surface of the through hole 13 of the hinged door 3 is formed on the outer periphery of the lid portion of the tubular body 15 with the lid,
The closing unit 10 is fixed by sandwiching the hinged door 3 between the main body case 12 and the tubular body 15 with a lid.
Further, a through hole 15c is formed in the central portion of the lid portion of the tubular body 15 with the lid.
Is formed, and a small-diameter step portion 15d that does not form the female screw 15b is formed at the rear end portion of the cylindrical body portion.

At the bottom of the main body case 12, a part of the magnet unit as a catch member is projected from the main body case 12 so that the hinged door 3 is attracted to the latching metal 11 when it reaches the closing limit position. 16 are provided. The magnet unit 16 is a well-known one in which a permanent magnet is arranged between a pair of yoke plates and is held so as to be movable in a minute range. Demonstrate.

An automatic engagement hook 18 is fixed to a support shaft 17 rotatably supported around a vertical axis in the upper portion of the main body case 12, and the automatic engagement hook 18 is attached to the hook metal fitting 11. On the other hand, it is swingably supported between a position where it engages from the inner side of the opening 1 and an engagement release position. Reference numeral 19 is a torsion coil spring that urges the automatic engagement hook 18 to swing toward the engagement position. Further, when the hinged door 3 is held at the closing limit position by the catching means 6, the automatic engagement hook 18 and the latch 11 are opposed to each other with a gap 20 therebetween in the opening / closing direction of the hinged door 3. It is configured.

A moving member 21 is movably arranged in the side of the automatic engagement hook 18 in the main body case 12 in the opening / closing direction of the hinged door 3, and a part of the moving member 21 is fitted in the tubular portion 14.
The engaging piece 22 protruding from the side surface of the moving member 21 is engaged with the portion 20a that is eccentric from the rotation axis of the automatic engaging hook 18 at the engaging position, so that the moving member 21 is opened. When moved in the closing direction, the automatic engagement hook 18 swings to the disengagement position against the biasing force of the torsion coil spring 19. Further, when the hinged door 3 is held at the closing limit position by the catch means 6, the pressing member 23 is integrated from the moving member 21 toward the latch 11 so that the tip of the hinge 3 abuts or approaches the latch 11. Has been projected. The pressing tool 23 constitutes the catch releasing means 8.

A cam 24 is rotatably arranged in the tubular portion 14 and is urged to rotate by a torsion spring 25 toward a predetermined rotation position. The cam 24 has a cam surface 24a that engages with the moving member 21 on its end face, and is configured such that when the cam 24 is rotated, the moving member 21 moves toward the inner side of the opening 1.

The end surface of the cam 24 opposite to the cam surface 24a passes through a through hole 14c in the end wall 14b of the tubular portion 14 and a through hole 15c in the center of the lid portion of the tubular body 15 with a lid, and is externally exposed. One end of the square shaft 26 projecting to is engaged with the other end of the square shaft 26 projecting to the outside, and a rotary operation knob 27 is attached to the other end. A positioning plate 28 is fixed in the middle of the square shaft 26,
The positioning plate 28 serves as the female screw 15 on the inner circumference of the tubular body 15 with a lid.
It is rotatably positioned between the ring-shaped plate nut 29 engaged with the step portion 19d at the rear end of the b and the tubular body 15 with the lid, whereby the protruding length of the square shaft 26 is increased. Is regulated and the rotary operation knob 27 is positioned.

In the device for closing a hinged door having the above-mentioned structure, when the hinged door 3 is closed, the catching means 6 securely holds the hinged door in the closed limit position so that there is no risk of rattling.
At the same time, the automatic engaging hook 18 goes over the latch 11 and becomes engageable with the latch 11, so that the force for opening the hinged door 3 may act from the inside in the event of an earthquake. However, the hinged door 3 does not open unexpectedly.

Further, when the hinged door 3 is opened, the rotary operation knob 27 is pulled while being rotated. As the rotary operation knob 27 rotates, the automatic engagement hook 18 moves from the engagement position with respect to the latch 11 to the engagement release position. The swinging door 3 can be opened by swinging, and at that time, in the state where the swinging door 3 is held by the catching means 6, there is a gap between the automatic engaging hook 18 and the latch 11 in the opening / closing direction of the swinging door 3. Since there is 20, the operation can be performed extremely lightly without resistance. Therefore, even if the hook means 7 is used together with the catch means 6 in order to prevent the hinged door 3 from opening unexpectedly, the hinged door 3 can be opened and closed relatively easily, and the hinged door is easy to use and highly safe. Can be realized.

Further, as the rotating operation knob 27 is rotated, the pressing member 23 presses the latching metal 11, so that the magnet unit 16 of the catching means 6 is locked by the rotating operation force of the rotating knob 27. Therefore, even when the hinged door 3 is strongly held by the catching means 6 at the closing limit position, the hinged door 3 can be lightly opened when the hinged door 3 is opened.

In the above embodiment, the rotary operation knob 27 is provided as the operation tool of the operation means 9 and the moving member 21 is moved via the cam 24. However, as shown in FIG. 3, the opening / closing knob of the hinged door 3 is opened. A push-in operation tool 31, which can be pushed in, is attached to 30, and the push-in operation tool 31 and the moving member 21 are attached.
May be connected by a coupling shaft 33. In FIG. 3, reference numeral 33 is a spring that biases the push-in operation tool 31 to project.

In the above embodiment, as shown in FIG. 7A, the catching means 6 is provided at the opening / closing operation position of the hinged door 3.
Although the example in which the closing unit 10 including the hook means 7, the catch releasing means 8 and the operating means 9 is provided is shown, the present invention is not limited to such an embodiment, and FIG.
As shown in (b), the operation unit 34 having the operating means 9 is arranged at the opening / closing operation position of the hinged door 3, and the closing unit 40 having the catching means 6, the hook means 7 and the catch releasing means 8 is provided. The operating unit 34 and the closing unit 40 may be connected to each other by the connecting shaft 39 by disposing the operating unit 34 and the closing unit 40 at the upper position, the lower position as shown by a phantom line, or both. Further, as shown in FIG. 7 (c), the closing unit 10 of FIG. 7 (a) is disposed at the opening / closing operation position of the hinged door 3, and further at the upper position or the lower position of the hinged door 3, or both of them. The closing unit 40 is arranged and they are connected to the connecting shaft 3
You may connect with 9. Further, as shown in FIG. 7D, in a double door having a pair of hinged doors 3 and 3,
As in FIG. 7B, the operation unit 34 and the closing unit 40 may be provided in each of the hinged doors 3 and connected by the connecting shaft 39.

The operation unit 34, as shown in FIG.
A swinging member 36 is disposed in an operation case 35 corresponding to the main body case 12 of the closing unit 10 and is fixed to a rotation shaft 37 which is rotatably supported, and the rotation shaft 37 is rotated by a torsion coil spring 38 to a predetermined rotation. Biased towards position.
The moving member 21 is disposed on the side of the swinging member 36 in the operation case 35, and the engaging piece 22 thereof is engaged with the portion of the swinging member 36 that is eccentric from the rotation axis. Further, similarly to FIG. 3, the moving member 21 is connected to the pushing operation tool 31 mounted on the opening / closing knob 30 via the coupling shaft 32. The rotating shaft 27 is connected to the connecting shaft 39. Needless to say, the operating means 9 including the rotary operation knob 27 and the cam 24 shown in FIG. 1 may be applied.

The closing unit 40 is arranged along the upper edge of the hinged door 3 in the example shown in FIG.
Installed on the ceiling wall of. In this hooking metal fitting 41, an engaged portion 41a and a caught portion 41b are suspended with an appropriate space. The rotary shaft 43 connected to the connecting shaft 39 is rotatably supported on one side of the main body case 42 of the closing unit 40, and the automatic engagement hook 18 is rotatably attached to the rotary shaft 43. In addition, the torsion coil spring 19 is urged to swing toward the engagement position with respect to the engaged portion 41a. A swinging member 44 fixed to the rotary shaft 43 is disposed on a side portion of the automatic engagement hook 18,
Further, a moving member 45 is disposed on the side of the swinging member 44, and the engaged portion 41 is integrated with the moving member 45.
A pressing tool 47 as a catch releasing means 8 for pressing a is provided. The moving member 45 is provided with an engaging piece 46 that engages with the swinging member 44 and a portion of the automatic engaging hook 18 that is eccentric from the axis of rotation. The magnet unit 16 is arranged on the other side of the body case 42 so as to face the catched portion 41b.

In the closing unit 40, when the connecting shaft 39 is rotated by the operation unit 34, the swinging member 44 swings through the rotating shaft 43 in accordance with the rotation, and through the engaging piece 46. As a result, the automatic engagement hook 18 swings to the disengagement position, and at the same time, the pressing tool 47 presses the engaged portion 41a to disengage the magnet unit 16 from the caught portion 41b.

In this way, when the closing unit 40 is arranged at the upper position and / or the lower position of the hinged door 3 and the operation unit 34 is arranged at the intermediate position, as shown in FIG. 8, a magnet as a catch member is provided. When only the unit 16 and the automatic engagement hook 18 are provided and the closing unit 50 that does not have the pressing tool 47 as the catch releasing means 8 is disposed, when the opening / closing knob 30 is used to open the hinged door 3, the hinged door 3 is opened. Since the upper part or the lower part or both of 3 is attracted to the magnet unit 16, the hinged door 3 bends as shown by a virtual line in FIG. Will occur. On the other hand, as shown in FIG. 5, the closing unit 40 is provided with a pressing tool 47 as the catch releasing means 8 and the magnet unit 16 is disengaged from the catched portion 41b at the initial stage of opening the hinged door 3, so that the hinged door 3 is opened. Can be opened smoothly without causing unpleasant vibration.

Although FIG. 5 shows an example of the combination of the closing unit 40 arranged along the upper edge of the hinged door 3 and the hooking metal fitting 41 attached to the ceiling surface, the closing unit 40
Is arranged along the lower edge of the hinged door 3, and the hook metal fitting 41 is attached to the floor surface.
The same configuration may be used when mounting the same, and as shown in FIG. 6, a closing unit 48 that does not include the magnet unit 16 as a catch member is provided on the side of the hinged door 3 and a catch target is provided near the closing unit 48. Attach the member 49,
The magnet unit 16 as a catch member may be attached to the ceiling surface or floor surface of the opening (floor surface in the illustrated example). Furthermore, in the example of FIGS. 5 and 6, the example applied to the double-door hinged door as shown in FIG.
Although 0 and 48 are arranged along the upper edge or the lower edge of the hinged door 3, and the hooking metal fitting 41 is arranged on the ceiling surface or the floor surface, as shown in FIG.
When applied to a single-door hinged door as shown in (b) and (c), as shown in FIGS. 1 to 3, the closing unit 40,
48 is arranged along the side edge of the hinged door 3, and
1 may be attached to the side wall.

Further, in the above embodiment, the catching means 6
As an example, the example of the magnet catch using the magnet unit 16 utilizing the magnetic attraction force is shown, but it goes without saying that a known roller catch utilizing the mechanical holding force may be used.

[0030]

The door closing device of the present invention can be implemented as described above. When the door is closed, it is securely held by the catching means at the closing limit position and rattling occurs. There is no fear, and by operating the operating means when opening the hinged door, the catching member or the engaged member is pressed by the pressing tool of the catch releasing means, and the operating force exerts a mechanical holding force on the catching means. It can be detached against the magnetic attraction force, and therefore the hinged door can be lightly opened while strongly holding the hinged door.

Further, when the operating portion of the operating means is constituted by a rotary operating tool or a push-in operating tool attached to the opening / closing knob part, a natural one-touch operation which is a series of opening operation of the hinged door is performed, and the hinged door is opened / closed without resistance. It can be operated.

Further, when a hook means is used in which the automatic engaging hook becomes engageable with the engaged member when the hinged door reaches the closing limit position, a force for opening the hinged door acts from the inside in the event of an earthquake or the like. Even if such a situation occurs, it is possible to reliably prevent the hinged door from being opened unexpectedly, and in the opening / closing direction of the hinged door between the automatic engagement hook and the engaged member while the hinged door is held by the catching means. By providing a gap in the engaging means, the automatic engaging hook can be made extremely light without any resistance when it is disengaged from the engaged member by the operation of the operating means, and therefore the catching means is provided to prevent the hinged door from being opened accidentally. Even when the hook means is used together, the hinged door can be opened and closed relatively easily, and the hinged door which is convenient and highly safe can be realized.

Further, when the catching means and the catch releasing means are arranged at either the upper position or the lower position of the hinged door or both, rattling of the hinged door can be effectively prevented and the operating means can be operated easily. Even if it is placed in a certain place, the catch releasing means releases the catching means with the operation of the operating means, so when opening the hinged door, be sure that the hinged door vibrates uncomfortably due to the reaction when the catching means is released. Can be prevented.

Further, if the hook means is also provided at the upper position and / or the lower position of the hinged door or both of them, it is possible to effectively prevent the hinged door from being opened accidentally, and the operating means is operated separately from them. By arranging it at a location that is easy to move, the operation can be performed easily.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view of an essential part of an embodiment of a hinged door closing device of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a cross-sectional plan view of a main part of another embodiment of the hinged door closing device of the present invention.

FIG. 4 shows an operation unit of another embodiment of the hinged door closing device of the present invention, (a) is a cross-sectional plan view, (b) is a vertical front view, and (c) is a vertical side view.

5A and 5B show the closing unit of the same embodiment, FIG. 5A is a cross-sectional plan view, and FIG. 5B is a sectional view taken along the line BB of FIG.

FIG. 6 is a plan view of an essential part of still another embodiment of the hinged door closing device of the present invention.

FIG. 7 is an explanatory view of various arrangements of each means constituting the hinged door closing device of the present invention.

FIG. 8 is an explanatory view of a problem in the case where the catch releasing means is not provided in the hinged door closing device of the present invention,
(A) is a side view and (b) is a front view.

[Explanation of symbols]

 3 Swing Door 5 Closing Device 6 Catch Means 7 Hook Means 8 Catch Release Means 9 Operating Means 11 Hooks (Catched Members and Engagement Members) 16 Magnet Units (Catch Members) 18 Automatic Engagement Hooks 20 Gap 21 Moving Member 23 Pressing tool 24 Cam 27 Rotating operation knob 30 Opening / closing knob 31 Pushing operation tool 41 Locking metal fitting 45 Moving member 47 Pressing tool 49 Catchable member

Claims (6)

[Claims] 1. A catching means (6) and a catch releasing means
(8) and operating means (9), the catching means (6) holds the hinged door in the closed limit position by a mechanical holding force or a magnetic attraction force, and the mechanical holding force or the magnetic attraction force. The catch release mechanism (8) has a catch member (16) and a catch target member (11, 41, 49) that allows the opening of the hinged door when an opening force greater than the force acts on the hinged door. It is built in the inside of (6) or arranged in the vicinity thereof, and the catch member (16) of the catch means (6) and the catched member (11,
41,49) and a pressing tool (23,47) provided on the side of the hinged door (3) for separating them from each other against their mechanical holding force or magnetic attraction force, and the operating means (9) is , The controls (27,3) provided on the hinged door (3)
A device for closing a hinged door having 1) and an interlocking mechanism for interlocking the operation tool (27, 31) with the pressing tool (23, 47) of the catch releasing means (8). 2. The operating means (9) comprises a rotating operation tool (27), a cam (24) which rotates in conjunction with the rotating operation tool (27), and a pressing tool which moves by rotation of the cam (24). The hinged door closing device according to claim 1, further comprising a moving member (21, 45) to which (23, 47) are coupled. 3. The operating means (9) is a knob for opening and closing the hinged door (3).
The push-in operation tool (31) mounted so that it can be pushed in the (30) and the push-in operation tool (23, 4
7. A moving member (21, 45) coupled with 7).
Swing door closing device described in. 4. An automatic engagement hook (18) and an engaged member (11) which automatically engage when the hinged door (3) reaches a closing limit position and prevent the hinged door (3) from opening. , 41) and the automatic engaging hook (18) and the engaged members (11, 41) are the hinged door (3).
The hook means (7) and the operating tools (27, 31) that face each other with a gap (20) in the opening and closing direction of the hinged door (3) when the catch means (6) are held in the closed limit position. The door closing device according to any one of claims 1 to 3, further comprising: an interlocking mechanism for interlocking with the engaged member (11, 41) to disengage the automatic engagement hook (18). 5. Catch means (6) and catch release means (8)
5. The door according to any one of claims 1 to 4, wherein the operating door (3) is provided at a position above or below the hinged door (3) or both, and the operating means (9) is provided at a position separated from them. Swing door closing device. 6. The hook means (7) is arranged at either or both of the upper position and the lower position of the hinged door (3), and the operating means (9) is arranged at a position separated from them. The closing device for the hinged door according to 4 or 5.