JP3269680B2 - Self-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 self-closing device for an opening of a sliding door type in an office building or a general house, and more particularly to a device for opening a window or the like when a fire or the like occurs. The present invention relates to a self-closing device for automatically and securely closing an opening.

[0002]

2. Description of the Related Art For example, at the opening of an entrance of an office building or a general house, a self-closing device for automatically closing an opening / closing body is provided.
No. 39107 and Japanese Utility Model Publication No. 57-7737.

[0003]

However, since such a conventional self-closing device is configured to always close the opening, the opening cannot be opened and closed by a normal operation. The opening cannot be left open, making it unsuitable for ordinary residential windows. On the other hand, in recent years, in general houses,
From the viewpoint of disaster prevention, there has been a demand for a self-closing device that can open and close the opening by a normal operation, and can reliably close the opening when a fire or the like occurs even if the opening is opened. The present invention has been devised in view of the above circumstances, and an object of the present invention is to enable opening and closing of an opening by a normal operation, and to ensure that the opening is open even in the event of a fire even if the opening is opened. It is to provide a self-closing device that can be closed.

[0004]

In order to achieve the above object, a self-closing device according to the present invention comprises: a sliding door type opening / closing body for opening and closing an opening; a winding drum disposed on the opening side;
A connection member wound around the winding drum, an urging means for urging the winding drum in a rotational direction for winding the connection member, and a winding speed of the connection member by the urging means. Engage with a damper and a leading end of a connecting member extended along a movement locus of the opening / closing body from the winding drum to a position facing at least a part of the opening / closing body located at a position where the opening is fully opened. Possible and
First engagement means for releasing the engagement state at a predetermined temperature or higher, and a second engagement means for engaging the connection member side with the opening / closing body side when the connection member moves from the extended state to the winding direction. (2) engaging means, wherein the biasing means is constituted by a torsion spring disposed in a closed space inside the winding drum, and the damper includes a number of orifices formed in the torsion spring; And a viscous fluid sealed in the closed space.

Further, the self-closing device according to the present invention comprises a sliding door type opening / closing body for opening and closing an opening, a winding drum arranged on the opening side, and a connection wound around the winding drum. A member, an urging means for urging the winding drum in a rotational direction for winding the connecting member, a damper for regulating a winding speed of the connecting member by the urging means, and a state in which the opening is fully opened. To a point facing at least a part of the opening / closing body located at a position to be engaged with the leading end of the connecting member drawn out along the movement locus of the opening / closing body from the winding drum, and at a predetermined temperature or higher. First engagement means for releasing the engagement state, and second engagement means for engaging the connection member side with the opening / closing body side when the connection member is moved from the extended state to the winding direction. With
A large number of holes are formed in the connection member at intervals in the longitudinal direction, and the damper has a sprocket that can be engaged with the hole, and a viscous material sealed between the sprocket and a spindle side of the sprocket. It is characterized by being composed of a fluid.

[0006]

Normally, since the opening and closing body and the connecting member are not engaged, the opening is opened and closed by the operation of moving the opening and closing body in the same manner as a normal opening having no self-closing device. Alternatively, the opening may be left open. When a fire occurs, the engagement state by the first engagement means is released,
The connection member is wound by the winding drum via the urging means. At this time, the opening / closing body and the connecting member are connected via the second engaging means, the opening / closing body moves together with the connecting member, and the opening is closed. The movement of the opening / closing body is performed gently by the damper, and the opening is securely closed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a sliding window of a general house will be described below. FIG. 1 shows a front view of the sliding window. 1 is a sliding window, 3 is a self-closing device, and the sliding window 1 is provided with a window frame 5 and two glass shojis 7 located inside and outside the building. Is shown at the right end of the opening 9 of the window frame 5, the left half of the opening 9 is open, and the glass sliding door 7 located inside the building is open. The opening 9 is closed by moving to the left end of 9. Self-closing device 3
Are provided corresponding to the two glass sliding doors 7, respectively, and both self-closing devices 3 have the same structure. Therefore, for convenience, a case where the present invention is applied to the glass sliding door 7 located inside the building will be described.

[0008] The window frame 5 includes a Kamoi 501, a threshold 503, a vertical frame 5
05, each glass shoji 7 is a frame 701,
And a glass plate 703 fitted in the frame 701. As shown in a perspective view of FIG. 2 and an exploded perspective view of FIG. 3, the self-closing device 3 includes a case 11, a winding drum 13 disposed in the case 11, the winding drum 13, and the glass. A non-combustible belt 15 (corresponding to a connecting member) for connecting the shoji, a belt-shaped spring steel plate 17 for urging the winding drum 13, and a damper 19 (see FIG. 4) are provided. And the like, a locking member 23 provided at the tip of the belt 15 to be engaged with the locking member 21 on the window frame 5 side so as to close when the window is open, and a glass shoji provided near the tip of the belt 15. And a locking tool 27 that engages with the locking tool 25 on the seventh side. In this embodiment, the locking members 21 and 23 correspond to first engagement means, and the locking members 25 and
27 corresponds to the second engagement means.

The case 11 is attached to the left end of the gate 501 and the upper end of the vertical frame 505. Case 1
Reference numeral 1 denotes a substrate 1103 having a shaft 1101 protruding therefrom, and a cover 1105 detachably coupled to the substrate 1103. The cover 1105 includes a bulging portion 1107 for accommodating the winding drum 13 and the like and a belt 15 Slot 110
9 are formed.

The winding drum 13 has an outer peripheral portion 1301 capable of winding the belt 15 and an outer peripheral portion 1301.
It comprises a cylindrical concave portion 1303 formed inside 301 and a circular lid 1305 for closing the concave portion 1303, and the concave portion 1303 and the lid 1305 form a space 1307.

The base end of the belt 15 is
1 and the locking tool 2
3, the locking tool 27 is provided near the tip. The locking tool 27 is provided with the U-shaped locking tool 25 of the glass sliding door 7 in a state where the glass sliding door 7 is located at the right end of the opening 9 and the locking tool 21 and the locking tool 23 are engaged. The belt 15 is located at a distant place on the right side, and is formed so as to engage with the locking member 25 when the belt 15 is wound up.

The shaft 1101 is inserted into the space 1307 through a hole 1309 in the end surface of the winding drum 13, and the spring steel plate 17 is formed with both ends formed in the groove 1111 of the shaft 1101 and the inner peripheral surface of the recess 1303. It is arranged in the form of a cord wound by locking. The spring steel plate 17 is urged in a direction in which the winding state is opened, whereby the winding drum 13 is urged in a direction in which the belt 15 is wound.

A large number of orifices 1701 are formed in the spring steel plate 17 at intervals in the longitudinal direction. FIG. 4A shows the spring steel plate 17 when the belt 15 is extended.
FIG. 4B shows the state of the spring steel plate 17 when the belt 15 is wound up. A viscous fluid 29 such as silicone oil is sealed in the space 1307. When the belt 15 is wound by the spring steel plate 17, the spring steel plate 17 is in a reduced diameter state as shown in FIGS. The viscous fluid located near the outer periphery of the space 1307 passes through the orifice 1701 through the orifice 1701 due to the movement of the spring steel plate 17 accompanying the winding of the belt 15.
7, the rotation speed of the winding drum 13 is suppressed to a predetermined value or less by the resistance of the viscous fluid 29 at this time. That is, the moving speed of the glass shoji 7 gradually increases due to the elastic force of the spring steel plate 17, and the glass shoji 7 is prevented from hitting the vertical frame 505 at the maximum speed.

The locking member 21 is attached to the upper end of the right vertical frame 505 via a fuse pin 31. The fuse pin 31 is used when the surrounding temperature becomes a predetermined value or more in a fire or the like. For example, it is configured to melt and break near 80 ° C. to 100 ° C.

Next, the operation of the self-closing device 3 will be described. First, pull out the belt 15 along the Kamoi 501,
The locking tool 23 at the tip is engaged with the locking tool 21 on the window frame 5 side. In this state, the winding drum 13 is
As a result, the belt 15 is urged in the winding direction, and a tensile force acts on the fuse pin 31. Since the locking tool 25 and the locking tool 27 are not engaged, the opening 9 can be opened and closed by the operation of moving the glass shoji 7 as in the case of the conventional window having no self-closing device. , Opening 9
Can be left open.

When the surrounding temperature rises to a predetermined value or more in the event of a fire or the like, the tensile force causes the fuse pins 31
Breaks, so that the belt 15
It is wound up. The movement of the belt 15 at this time causes the locking members 25 and 27 to engage, the belt 15 is connected to the glass shoji 7, and the glass shoji 7 is moved together with the belt 15 to close the opening 9. When the belt 15 is wound, the rotation speed of the winding drum 13 is suppressed by the action of the damper 19, whereby the moving speed of the glass shoji 7 is suppressed to a predetermined value or less. The opening 9 is securely closed by the glass shoji 7 without any occurrence.

Next, a second embodiment will be described with reference to FIGS. 5 is a perspective view of the sliding window, FIG. 6 is an exploded perspective view of the self-closing device, and FIG. 7 is a sectional view of the damper. The second embodiment is different from the first embodiment in the configuration such as attachment of a damper and a locking member. 41 is a sliding window, 4
3 is a self-closing device, the sliding window 41 is provided with a window frame 45, and two glass shojis 47 located inside and outside the building,
The self-closing devices 43 are respectively provided corresponding to the two glass shojis 47, and both the self-closing devices 43 have the same structure.
Similar to the first embodiment, a case where the present invention is applied to a glass shoji screen 47 located inside a building will be described.

The window frame 45 includes a Kamoi 4501, a threshold 4503,
Each glass sash 47 is composed of a vertical frame 4505 and a glass plate 470 fitted into the frame 4701.
3 is comprised. As shown in an exploded perspective view in FIG. 6, the self-closing device 43 includes a case 51, a winding drum 53 disposed in the case 51, and two guide drums 55.
, A rotary damper 57 and the winding drum 5
A belt-shaped spring steel plate 59 (corresponding to a connection member) for connecting the glass leaf member 3 to the glass screen 47, a guide 61, a fuse pin 63 connecting the tip of the spring steel plate 59 and the tip of the guide 61, And a locking tool 67 provided to engage with the locking tool 65 on the glass shoji 47 side. In this embodiment, the fuse pin 63 corresponds to a first engagement means,
The locking members 65 and 67 correspond to the second engagement means.

The case 51 comprises a substrate 5101 attached to the gate 4501 and a cover 5103 detachably connected to the substrate 5101. The winding drum 53, the guide drum 55, and the rotary damper 5
7 is a shaft 5105, 510 attached to the substrate 5101.
5,5105,5107 rotatably supported. The spring steel plate 59 has its base end attached to the take-up drum 53 and is urged to be wound in a helical shape at all times.
9 has a number of rack holes 590 spaced apart in the longitudinal direction.
1 is formed. The guide 61 guides the movement of the spring steel plate 59, and is attached to the Kamoi 4501, and the fuse pin 63 that locks the tip of the guide 61 and the tip of the spring steel plate 59 is, for example, near 80 ° C. to 100 ° C. And it is configured to be broken.

As shown in FIG. 7, the rotary damper 57 has a shaft 5107 attached to the base plate 5101 via a nut 5701 and a substantially conical shaft attached to the shaft 5107 via a stop ring 5703. Inner member 57
05 and a sprocket 5707 rotatably disposed outside the inner member 5705. An O-ring 5713 is formed between the sprocket 5707 and the inner member 5705. An O-ring 5713 is formed between the sprocket 5707 and the inner member 5705. The viscous fluid 69 is sealed in the gaps 5709 and 5711, and the sprocket 570 is rotated by the shear resistance of the viscous fluid 69 when the sprocket 5707 rotates.
7 is suppressed to a predetermined value or less.

Next, the operation of the self-closing device 43 will be described. First, the spring steel plate 59 is pulled out, and its tip and the tip of the guide 61 are engaged with the fuse pin 63 in advance. In this state, a tensile force acts on the fuse pin 63 by the elastic force of the spring steel plate 59 itself. And since the locking tool 65 and the locking tool 67 are not engaged, the window 41 can be opened and closed by the operation of moving the glass shoji 47 similarly to the conventional window having no self-closing device. The window 41 can be left open. When the ambient temperature rises to a predetermined value or more in the event of a fire or the like, the tensile force causes the fuse pin 6
3 is broken, and the spring steel plate 59 is wound by the winding drum 53. The movement of the spring steel plate 59 at this time causes the locking member 6 to move.
5 and 67 are engaged, the glass screen 47 moves together with the spring steel plate 59, and the opening 49 of the window frame 45 is closed. When the glass shoji 47 is closed, the rotary damper 57 is closed.
Thereby, the speed of the glass shoji 47 is suppressed to a predetermined value or less,
The opening 49 is securely closed without any gap being generated in the opening 49 due to rebound or the like.

Whether or not to provide a guide is optional. For example, when the belt 15 or the spring steel plate 59 is provided on the sill side, the guide is unnecessary.

[0023]

As is apparent from the above description, according to the present invention, the opening is normally opened and closed by the operation of moving the opening / closing body in the same manner as a normal opening having no self-closing device. Also, even if the opening is opened, the opening can be reliably closed in the event of a fire.

[Brief description of the drawings]

FIG. 1 is a front view of a sliding window to which a self-closing device according to a first embodiment is applied.

FIG. 2 is a perspective view of a self-closing device.

FIG. 3 is an exploded perspective view of the self-closing device.

FIG. 4 is a sectional view of a damper.

FIG. 5 is a perspective view of a sliding window to which the self-closing device according to the second embodiment is applied.

FIG. 6 is an exploded perspective view of the self-closing device.

FIG. 7 is a sectional view of a damper.

[Explanation of symbols]

 1,41 sliding window 3,43 self-closing device 5,45 window frame 7,47 glass shoji 9,49 opening 11,51 case 13,53 winding drum 15 belt 17,59 spring steel plate 19,57 damper 21, 23, 25, 27, 65, 67

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05F 1/16 E05F 3/14 A62C 2/24

Claims (3)

(57) [Claims] 1. A sliding door type opening / closing body for opening and closing an opening, a winding drum disposed on the opening side, a connection member wound around the winding drum, and the winding drum. Urging means for urging the connection member in the rotational direction for winding the connection member; a damper for regulating a winding speed of the connection member by the urging means; and at least an opening / closing member located at a position where the opening is fully opened. A first part that can be engaged with the leading end of the connecting member that is unreeled along the movement locus of the opening and closing body from the winding drum to a position facing a part thereof, and that releases the engaged state at a predetermined temperature or higher. and engaging means, and a second engagement means for engaging with said opening side and the connecting member side when moving in the direction in which the connecting member is wound from a state of being fed, the biasing means The internal density of the winding drum In a closed space
The torsion spring comprises a plurality of torsion springs.
It consists of a orifice and a viscous fluid sealed in the closed space.
A self-closing device characterized by being formed . 2. A sliding door type opening / closing body for opening and closing an opening, a winding drum disposed on the opening side, a connecting member wound on the winding drum, and the winding drum. How to rotate the connection member
Urging means for urging in the direction, and restricting a winding speed of the connecting member by the urging means.
A damper and a small number of opening / closing members located at a position where the opening is fully opened.
At least partly in front of the take-up drum
The tip of the connecting member extended along the movement path of the opening / closing body
And can be engaged at a predetermined temperature or higher.
First engagement means for releasing the state, and a direction in which the connection member is wound up from the extended state
Engaging the said opening side and the connecting member side when moving to
A second engaging means, wherein the connecting member has a plurality of holes spaced apart in a longitudinal direction.
Formed, the damper has a sprocket meshable with the hole,
Seal between this sprocket and the spindle side of the sprocket
A self-closing device , comprising: a viscous fluid contained therein . 3. The movement of the connecting member is guided to the opening.
3. A self-guide according to claim 1 or 2, wherein a guide is provided.
Closing device.