JP3154926B2 - Hinged door closing 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 hinged door closing device, and more particularly to a hinged door closing device provided with catch means for holding a hinged door at a closing limit position by a mechanical holding force or a magnetic attraction force.

[0002]

2. Description of the Related Art Conventionally, as a device for closing a hinged door, a magnet unit is mounted on one of an opening wall and a hinged door, and a ferromagnetic material is mounted on the other. So that a so-called magnet catch is applied, or a pair of rollers elastically supported opposite to each other is attached to one of the opening wall and the door, and the other door is closed. A so-called roller catch is known in which an arrowhead-shaped wedge member that can be fitted between the pair of rollers is attached to the pair of rollers while spreading the pair of rollers.

[0003]

In the above-mentioned closing device for a hinged door using a magnet catch or a 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 danger of causing uncomfortable feeling when the hinged door is easily closed in a state where the hinged door is closed. It is necessary to apply an operating force, and if the hinged door can be strongly held in a closed state, there is a problem that a large force is required to open the hinged door and the operation is difficult.

[0004] In particular, when an opening / closing operation tool for opening the hinged door is provided at an intermediate portion in the vertical direction of the hinged door, and the catch means is provided at an upper portion or a lower portion of the hinged door, when the hinged door is opened, the upper portion of the hinged door is not moved. Since the lower portion is kept at the closing limit position by the catching means with a predetermined force, the hinged door bends, and then the catch comes off suddenly, causing unpleasant vibration in the hinged door.

The present invention has been made in view of the above-mentioned conventional problems, and proposes a door closing device which can be easily opened in a door provided with catch means and does not cause unpleasant vibration when opened. Aim.

[0006]

In order to achieve the above object, the present invention provides a catching means (6) and a catch releasing means provided that reference numerals in the following embodiments are shown in parentheses for reference. (8), operating means (9) and hinged door (3)
When the closed limit position is reached, the engaged members (11, 41) automatically
To prevent the door (3) from opening.
The catch means (6) holds the opening door at the closing limit position by a mechanical holding force or a magnetic attraction force, and performs an opening operation at or above the mechanical holding force or the magnetic attraction force. It has a catch member (16) and a catched member (11, 41, 49) for allowing opening of the hinged door when a force acts on the hinged door, and the catch releasing means (8) is provided inside the catching means (6). The catch member (16) of the catch means (6) and the catch member (11, 41, 49)
And a pressing device (2) provided on the door (3) side to separate them from each other against their mechanical holding force or magnetic attraction force.
The operating means (9) includes an operating tool (27, 31) provided on the hinged door (3), and a pressing tool (27) provided on the operating tool (27, 31) and the catch release means (8). 23,47) have a an interlocking mechanism for interlocking the automatic engagement hooks (18) are hinged (3) is caught
When the closed position is held by the means (6), the engaged portion
Gap (20) in the opening and closing direction of the hinged door (3) between
Hook means (7) facing away and operating tools (27, 31)
To move the automatic engagement hook (18) away from the engaged members (11, 41).
A configuration having an interlocking mechanism for detaching is adopted.

The operating means (9) is specifically a rotary operating tool (2
7), 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)
Moving members (21, 45) coupled with
A push operation tool (31) mounted so as to be able to be pushed into the opening / closing knob (30) of (3), and a moving member which moves in conjunction with the push operation tool (31) and is coupled with the press tools (23, 47). (21,45).

[0008]

Further, the catch means (6), the catch release means (8), and the hook means (7) are disposed at either the upper position or the lower position of the hinged door (3) or both. The operating means (9) can be disposed at a position separated from the operating means (9).

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a door closing device according to an embodiment of the present invention; FIG.

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

The closing means 5 will be described in detail. A closing unit 10 is mounted on the door 3 side, and an L-shaped latch 11 is mounted on the opening wall 2 side. The latch 10 serves both as a catch member of the catch means 6 and an 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
A cylindrical portion 14 that is inserted and fitted into a through-hole 13 formed through the hinged door 3 is integrally connected to the door. An outer peripheral screw 14a having a diameter smaller than that of the base portion is formed on the outer periphery of the cylindrical portion 14, and the end is closed by an end wall 14b, and a through hole 14c is formed in the end wall. On the outer surface side of the hinged door 3, a cylindrical body 15 with a lid is disposed, and the cylindrical body part is fitted into the through hole 13, and a female screw 15 b formed on the inner periphery is screwed with the outer peripheral screw 14 a of the cylindrical part 14. Have been. A flange 15b is formed on the outer periphery of the lid of the tubular body 15 with a lid, the flange 15b engaging with the outer peripheral surface of the through hole 13 of the hinged door 3,
It is configured such that the opening unit 3 is sandwiched between the main body case 12 and the lid-attached cylinder 15 to fix the closing unit 10.
Also, a through hole 15c is formed at the center of the lid of the cylindrical body 15 with the lid.
Is formed, and a small-diameter stepped portion 15d in which the female screw 15b is not formed is formed at a rear end portion of the cylindrical body portion.

A magnet unit as a catch member is provided at a lower portion in the main body case 12 so as to partially project from the main body case 12 so as to be attracted to the latch 11 when the hinged door 3 reaches the closing limit position. 16 are provided. The magnet unit 16 is a well-known magnet unit in which a permanent magnet is disposed between a pair of yoke plates so as to be movable in a minute range. Demonstrate.

On the upper part of the main body case 12, an automatic engaging hook 18 is fixed to a support shaft 17 rotatably supported around a vertical axis. On the other hand, it is swingably supported between a position to be engaged from the back side of the opening 1 and a disengaged position. Reference numeral 19 denotes a torsion coil spring that urges the automatic engagement hook 18 to swing toward the engagement position. When the hinged door 3 is held at the closing limit position by the catch means 6, the automatic engagement hook 18 and the latch 11 are opposed to each other with the gap 20 therebetween in the opening and closing direction of the hinged door 3. It is configured.

A moving member 21 is provided on the side of the automatic engaging hook 18 in the main body case 12 so as to be movable in the opening and closing direction of the hinged door 3, and a part of the moving member 21 is fitted into the cylindrical portion 14.
An engagement piece 22 protruding from a side surface of the moving member 21 is engaged with a portion 20a eccentric from the rotation axis of the automatic engaging hook 18 at the engaging position, and the moving member 21 is opened and the door 3 is opened. When the automatic engagement hook 18 is moved in the closing direction, the automatic engagement hook 18 swings to the disengaged position against the urging force of the torsion coil spring 19. Further, when the hinged door 3 is held at the closing limit position by the catching means 6, the pressing member 23 is integrated with the moving member 21 toward the latching member 11 such that the front end contacts or approaches the latching member 11. It is protrudingly provided. This pressing tool 23 constitutes the catch release means 8.

A cam 24 is rotatably disposed in the cylindrical portion 14 and is urged by a torsion spring 25 to rotate toward a predetermined rotational position. The cam 24 has a cam surface 24a on its end face that engages with the moving member 21. When the cam 24 is rotated, the moving member 21 moves toward the back of the opening 1.

The end face of the cam 24 opposite to the cam surface 24a is inserted through the through hole 14c of the end wall 14b of the tubular portion 14 and the through hole 15c at the center of the lid of the tubular body 15 with the lid. One end of a square shaft 26 protruding from the shaft 26 is engaged, and a rotating operation knob 27 is attached to the other end of the square shaft 26 protruding outside. A positioning plate 28 is fixed in the middle of the square shaft 26,
This positioning plate 28 is used to connect the female screw 15
b, and is rotatably positioned between the ring-shaped plate nut 29 engaged with the stepped portion 19d at the back end thereof and the cylindrical body 15 with the lid. Is regulated, and the rotary operation knob 27 is positioned.

In the hinged door closing device having the above structure, when the hinged door 3 is closed, it is securely held by the catch means 6 at the closing limit position, so that there is no danger of rattling.
At the same time, since the automatic engagement hook 18 gets over the latch 11 and becomes engageable with the latch 11, the force for opening the hinged door 3 may act from the inside during an earthquake or the like. There is no possibility that the hinged door 3 is unexpectedly opened.

Further, when the swing door 3 is opened, if the rotary operation knob 27 is pulled while being turned, the automatic engagement hook 18 is moved from the engagement position with the latch 11 to the engagement release position with the rotation of the rotation operation knob 27. The swinging door 3 can be opened by swinging. At this time, in a state where the swing door 3 is held by the catching means 6, a gap is provided between the automatic engagement hook 18 and the latch 11 in the opening and closing direction of the swing door 3. Since there are 20, the operation can be performed very lightly without any resistance. Therefore, even if the hook means 7 is used in combination with the catch means 6 in order to prevent the hinged door 3 from unexpectedly opening, the hinged door 3 can be relatively easily opened and closed. Can be realized.

Furthermore, since the latch 11 is pressed by the pressing tool 23 with the rotation of the rotary knob 27, the magnet unit 16 of the catch means 6 is moved by the rotation force of the rotary knob 27. Therefore, even when the hinged door 3 is strongly held by the catch means 6 at the closing limit position, the hinged door 3 can be opened lightly.

In the above-described embodiment, the rotary operation knob 27 is provided as an operation tool of the operation means 9 and the moving member 21 is moved via the cam 24. However, as shown in FIG. A push operation tool 31 that can be pushed into the moving member 21 is attached to the push operation tool 31 and the moving member 21.
May be connected by a connection shaft 33. In FIG. 3, reference numeral 33 denotes a spring for urging the pushing operation tool 31 out.

In the above-described embodiment, as shown in FIG.
Although an example in which the closing unit 10 including the hook unit 7, the catch releasing unit 8 and the operating unit 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 operation means 9 is disposed at the opening / closing operation position of the hinged door 3, and the closing unit 40 provided with the catch means 6, the hook means 7, and the catch release means 8 is opened. The operation unit 34 and the closing unit 40 may be connected to each other by the connecting shaft 39 at the upper position or at the lower position as shown by a virtual line. Further, as shown in FIG. 7 (c), after the closing unit 10 of FIG. 7 (a) is disposed at the opening / closing operation position of the hinged door 3, it is further placed at the upper position, the lower position, or both of the hinged door 3. The closing unit 40 is provided and connected to the connecting shaft 3.
9 may be connected. Further, as shown in FIG. 7D, also in a double door having a pair of doors 3 and 3,
7B, the operation unit 34 and the closing unit 40 may be disposed on each hinged door 3 and connected by the connecting shaft 39.

The operation unit 34 is, as shown in FIG.
A swing member 36 is provided in an operation case 35 corresponding to the main body case 12 of the closing unit 10 and is fixed to a rotatable shaft 37 rotatably supported. Biased toward position.
The moving member 21 is disposed on the side of the swing member 36 in the operation case 35, and the engagement piece 22 is engaged with a portion of the swing member 36 eccentric from the rotation axis. As in FIG. 3, the moving member 21 is connected via a coupling shaft 32 to a pushing operation tool 31 mounted on an opening / closing knob 30. The rotation shaft 27 is connected to the connection 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.
Mounted on the ceiling wall. In this latch 41, the engaged portion 41a and the catched portion 41b are hung at an appropriate interval. A rotation shaft 43 connected to the connection shaft 39 is rotatably supported at one side of the main body case 42 of the closing unit 40, and the automatic engagement hook 18 is rotatably mounted on the rotation shaft 43, In addition, the torsion coil spring 19 is urged to swing toward the engagement position with the engaged portion 41a. A swing member 44 fixed to the rotating shaft 43 is provided on a side portion of the automatic engagement hook 18,
Further, a moving member 45 is disposed on a side portion of the swing member 44, and the engaged portion 41 is integrally formed with the moving member 45.
A pressing tool 47 is provided as catch release means 8 for pressing a. The moving member 45 is provided with an engagement piece 46 that is engaged with a portion of the swinging member 44 and the automatic engagement hook 18 that is eccentric from the rotation axis. The magnet unit 16 is provided on the other side of the main 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 swing member 44 swings via the rotating shaft 43 with the rotation, and the engaging member 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 catched portion 41b.

When the closing unit 40 is disposed at the upper position and / or lower position of the opening door 3 and the operating unit 34 is disposed at the intermediate position, as shown in FIG. When the closing unit 50 provided only with the unit 16 and the automatic engagement hook 18 and not having the pressing tool 47 as the catch releasing means 8 is provided, when the opening door 3 is opened using the opening / closing knob 30, Since the upper part and / or lower part of the door 3 is attracted to the magnet unit 16, the hinged door 3 bends as shown by the phantom line in FIG. Will occur. On the other hand, as shown in FIG. 5, the closing unit 40 is provided with the pressing tool 47 as the catch releasing means 8 and the magnet unit 16 is detached from the catched portion 41b at the initial stage of opening the opening door 3, thereby opening the opening door 3. Can be opened smoothly without generating unpleasant vibration.

FIG. 5 shows an example of a combination of the closing unit 40 provided along the upper edge of the hinged door 3 and the latch 41 attached to the ceiling surface.
Is disposed along the lower edge of the hinged door 3 and the latch 41 is attached to the floor surface.
A similar configuration may be used for mounting. As shown in FIG. 6, a closing unit 48 having no magnet unit 16 as a catch member is disposed on the opening door 3 side. Attach the member 49,
The magnet unit 16 as a catch member may be attached to a ceiling surface or a floor surface (a floor surface in the illustrated example) of the opening. Further, in the examples of FIGS. 5 and 6, an example in which the present invention is applied to a double door as shown in FIG.
0 and 48 are provided along the upper edge or lower edge of the hinged door 3, and the latches 41 are provided on the ceiling or floor.
When the present invention is applied to a one-way swing door as shown in (b) and (c), as shown in FIGS.
48 are arranged along the side edge of the hinged door 3,
1 may be attached to the side wall.

In the above embodiment, the catch means 6
As an example, the example of the magnet catch using the magnet unit 16 using the magnetic attraction force has been described, but it goes without saying that a known roller catch using the mechanical holding force may be used.

[0030]

The operation and effect of the present invention can be carried out as described above. When the hinged door is closed, it is securely held by the catch means at the closing limit position to cause rattling. There is no fear, and by operating the operating means when opening the hinged door, the catch member or the engaged member is pressed by the pressing tool of the catch release means, and the operating force causes the catch means to have its mechanical holding force or The door can be detached against the magnetic attraction force, so that the door can be opened lightly while the door is strongly held by the catch means. Moreover, when the swing door reaches the closing limit position,
Hook hand that allows the engagement hook to engage the engaged member
The ability to open doors in the event of an earthquake, etc., due to the use of steps
The door may be unexpected even if it may act from inside
Can be reliably prevented from opening in
According to the configuration of the present invention, the swing door is held by the catch means.
Is open between the automatic engagement hook and the engaged member.
Since a gap is secured in the opening and closing direction of the door,
Release the automatic engagement hook from the engaged member by operation
Can be performed very lightly without any resistance
Use a catch on the catch to prevent the door from accidentally opening.
Opening and closing the swing door relatively easily even when using
Doors that are easy to use and secure
Can be realized.

When the operating part of the operating means is constituted by a rotary operating tool or a push operating tool attached to the opening / closing knob, a series of opening operation of the opening door and a simple one-touch operation can be performed. Can be operated.

[0032]

If the catching means and the catch releasing means are arranged at the upper position and / or the lower position of the hinged door, rattling of the hinged door can be effectively prevented and the operating means can be easily operated. Even if it is placed in the place, the catch means is released by the catch release means with the operation of the operating means, so when opening the hinged door, make sure that the swinging door vibrates uncomfortably due to the recoil when the catch means is released. Can be prevented.

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

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view of a main part of an embodiment of a swing door closing device according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG. 1;

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.

4A and 4B show an operation unit according to another embodiment of the hinged door closing device of the present invention, wherein FIG. 4A is a cross-sectional plan view, FIG. 4B is a vertical front view, and FIG.

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

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

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

FIG. 8 is an explanatory view of a problem in a case where no catch release means is provided in the hinged door closing device of the present invention;
(A) is a side view, (b) is a front view.

[Explanation of symbols]

 REFERENCE SIGNS LIST 3 hinged door 5 closing device 6 catching means 7 hooking means 8 catch releasing means 9 operating means 11 latching member (catch member and engaged member) 16 magnet unit (catch member) 18 automatic engagement hook 20 gap 21 moving member 23 Pressing tool 24 Cam 27 Rotating operation knob 30 Opening / closing knob 31 Push-in operation tool 41 Hook metal fitting 45 Moving member 47 Pressing tool 49 Catching member

Claims (5)

(57) [Claims] Catch means (6) and catch release means
(8), the operating means (9) and the hinged door (3) reach the closing limit position.
Automatically engages with the engaged member (11, 41) when
An automatic engagement hook (18) for preventing the opening movement of the hinged door (3) , and the catching means (6) holds the hinged door at the closing limit position by a mechanical holding force or a magnetic attraction force. A catch member (16) and a catch member (11, 41, 49) for allowing the opening of the hinged door when an opening operation force greater than the holding force or the magnetic attraction force acts on the hinged door; 8) is incorporated in or located near the catching means (6), the catching member (16) of the catching means (6) and the catched members (11,
41, 49) are provided on the side of the hinged door (3) to separate them from each other against their mechanical holding force or magnetic attraction force, and the operating means (9) is , Operating devices (27, 3
1) possess a pressing tool (23,47) interlocked interlocking the mechanism of the operating member (27, 31) and a catch release means (8), automatic engagement hooks (18), hinged door (3 ) Catch means (6)
Is held at the closing limit position by the engaged member (11, 4
1) with a gap (20) in the opening and closing direction of the hinged door (3).
Interlocked with the opposing hook means (7) and operating tools (27, 31)
Remove the automatic engagement hook (18) from the engaged members (11, 41).
A closing device for a hinged door having an interlocking mechanism . The operating means (9) includes a rotary operating tool (27), a cam (24) that rotates in conjunction with the rotary operating tool (27), and a pressing tool that moves by rotating the cam (24). 2. A hinged door closing device according to claim 1, further comprising a moving member coupled to said movable member. The operating means (9) is a knob for opening and closing the hinged door (3).
(30), a push-in operation device (31) mounted so as to be able to be pushed in, and a push-in device (23, 4
And a moving member (21, 45) coupled with the moving member.
3. The device for closing a hinged door according to claim 1. 4. Catch means (6) and catch release means (8)
The upper or lower position of the hinged door (3) or its
Arrange the control means (9) at a position separated from them.
The swing door closing device according to any one of claims 1 to 3, which is disposed . The hook means (7) is opened at a position above the door (3).
Arranged in either or both lower positions and separated from them
5. The device for closing a hinged door according to claim 1 , wherein the operating means is disposed at the position where the operation is performed .