JPH06167163A - Self-closing device - Google Patents

Abstract

PURPOSE:To eliminate a rebounding motion in an opening and close a window definitely by inhibiting a rotary speed of a take-up drum with the action of a damper which consists of a large number of orifices installed in an enclosed space inside the drum and a viscous fluid. CONSTITUTION:A viscous fluid 29 is sealed in a space 1307 of a take-up drum 13 and the fluid is arranged to move further inside the space through orifices 1701, responding to the movement that a spring steel plate 17 tends to expand its size. When a belt 15 is pulled out so that a stopper 23 at the tip of the belt may be engaged with a stopper 21 by a window frame, stoppers 25 and 27 are not engaged. However, when a fuse pin 31 is broken down by a rise in the surrounding temperature caused by fire or the like, and the belt 15 is wound up by the take-up drum 13, the stopper 25 is engaged with the stopper 27. The belt 15 is connected to a sliding glass door 7 so that both the glass sliding door 7 and the belt 15 may be moved together, thereby closing the opening. When the door is closed, this construction makes it possible to inhibit the rotary speed of the take-up drum 13 by the action of a damper and eliminate rebounding or the like, thereby closing the door definitely.

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 a sliding door type opening in an office building or a general house, and more specifically, when an opening such as a window is opened when a fire occurs, The present invention relates to a self-closing device that automatically and surely closes an opening.

[0002]

2. Description of the Related Art For example, a self-closing device for automatically closing an opening / closing body is provided at an opening such as an entrance / exit of an office building or a general house.
-39107 and Jikho 57-7737 are known.

[0003]

However, since all such conventional self-closing devices are configured to always close the opening, the opening cannot be opened and closed by a normal operation, and The opening cannot be left open, which is not suitable for windows of ordinary houses. On the other hand, in recent years, in general housing,
From the standpoint of disaster prevention, the emergence of a self-closing device that can open and close the opening by a normal operation and that can surely close the opening even when a fire occurs, has been desired from the viewpoint of disaster prevention. The present invention has been devised in view of the above circumstances, and an object of the present invention is to open and close the opening by a normal operation, and even when the opening is opened, the opening can be reliably opened when a fire occurs or the like. 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 member for opening and closing an opening, a winding drum arranged on the opening side,
A connection member wound around the winding drum, an urging means for urging the winding drum in a rotation direction for winding the connection member, and a winding speed of the connection member by the urging means are restricted. Engage with the damper and the tip of the connecting member extended along the movement path 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
A first engagement means for releasing the engagement state at a predetermined temperature or higher, and a first engagement means for engaging the connection member side and the opening / closing body side when the connection member moves in the winding direction from the unrolled state. And two engaging means.

Further, according to the present invention, the urging means comprises a torsion spring arranged in a closed space inside the winding drum, and the damper has a large number of orifices formed in the torsion spring. And a viscous fluid enclosed in the closed space. Further, according to the present invention, a large number of holes are formed in the connecting member at intervals in the longitudinal direction, and the damper is provided with a sprocket that can be engaged with the holes, and between the sprocket and a support shaft side of the sprocket. It is characterized in that it is composed of an enclosed viscous fluid. Further, the invention is characterized in that a guide for guiding the movement of the connecting member is provided on the opening side.

[0006]

Since the opening / closing body and the connecting member are not normally engaged with each other, the opening / closing body is opened / closed by the operation of moving the opening / closing body as in the case of a normal opening without a self-closing device. Alternatively, the opening can be left open. When a fire occurs, the engagement state by the first engagement means is released,
The connection member is wound up by the winding drum via the biasing 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. Then, the opening / closing body is gently moved by the damper to surely close the opening.

[0007]

EXAMPLE An example 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. Reference numeral 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 screens 7 located inside and outside the building. FIG. 1 shows the inside and outside of the building. Shows a state in which the glass shoji 7 located at is located 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 shoji 7 located inside the building is the opening. The opening 9 is closed by moving to the left end of 9. Self-closing device 3
Are provided respectively corresponding to the two glass screens 7, and both of the self-closing devices 3 have the same structure. Therefore, for the sake of convenience, a case of applying the glass screens 7 located inside the building will be described.

The window frame 5 includes a kamoi 501, a sill 503, and a vertical frame 5.
05, each glass shoji 7 includes a frame body 701,
The glass plate 703 is fitted in the frame body 701. As shown in the perspective view of FIG. 2 and the exploded perspective view of FIG. 3, the self-closing device 3 includes a case 11, a winding drum 13 arranged 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 screen 7, a strip-shaped spring steel plate 17 for urging the winding drum 13, and a damper 19 (see FIG. 4) are provided, and when a fire occurs. Etc., a locking tool 23 provided at the tip of the belt 15 to engage with the locking tool 21 on the side of the window frame 5 and a glass sliding door provided near the tip of the belt 15 so as to be closed when the window is open. The locking tool 27 that engages with the locking tool 25 on the seventh side. In this embodiment, the locking tools 21, 23 correspond to the first engaging means, and the locking tools 25,
27 corresponds to the second engagement means.

The case 11 is attached to the left end of the kamoi 501 and the upper end of the vertical frame 505. Case 1
Reference numeral 1 denotes a substrate 1103 on which a shaft 1101 is provided, and a cover 1105 detachably coupled to the substrate 1103. The cover 1105 has a bulging portion 1107 for accommodating the winding drum 13 and the like, and a belt 15. Insertion and removal 110
9 is formed.

The winding drum 13 has an outer peripheral portion 1301 capable of winding the belt 15, and an outer peripheral portion 1 of the outer peripheral portion 1301.
It is composed of a cylindrical concave portion 1303 formed inside 301 and a circular lid 1305 that closes the concave portion 1303, and the concave portion 1303 and the lid 1305 form a space portion 1307.

The base end of the belt 15 is the outer peripheral portion 130.
1 is attached to the end of the belt 15, and
3, the locking tools 27 are provided near the tip ends, respectively. The locking member 27 has the U-shaped locking member 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 members 21 and 23 are engaged with each other. It is located at a distant position 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 the hole 1309 on the end surface of the winding drum 13, and the spring steel plate 17 has both ends in the groove 1111 of the shaft 1101 and the inner peripheral surface of the recess 1303. It is locked and arranged in a string. The spring steel plate 17 is biased in the direction in which the string winding state is opened, and thereby the winding drum 13 is biased in the 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 a spring steel plate 17 when the belt 15 is unwound.
4B shows the state of the spring steel plate 17 when the belt 15 is wound up. A viscous fluid 29 such as silicon oil is enclosed in the space 1307, and when the belt 15 is wound by the spring steel plate 17, as shown in FIGS. 4A to 4B, the spring steel plate 17 is in a reduced diameter state. And the viscous fluid located near the outer periphery of the space portion 1307 moves through the orifice 1701 by the movement of the spring steel plate 17 as the belt 15 is wound.
7, the rotational 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 elastic force of the spring steel plate 17 gradually increases the moving speed of the glass shoji 7 and prevents the glass shoji 7 from hitting the vertical frame 505 at the maximum speed.

The locking tool 21 is attached to the upper end of the right vertical frame 505 via a fuse pin 31, and the fuse pin 31 is used when the ambient temperature exceeds a predetermined value in the event of a fire or the like. , For example, is melted and broken 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 attached to the spring steel plate 17
Due to this, the belt 15 is biased 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 with each other, the opening 9 can be opened and closed by the operation of moving the glass shoji 7, as in the conventional window having no self-closing device. , Opening 9
You can leave it open.

When the ambient temperature rises above a predetermined value in the event of a fire, the pulling force causes the fuse pin 31
Rupture, which causes the belt 15 to take up the take-up drum 13
Is wound up in. By the movement of the belt 15 at this time, the locking members 25 and 27 are engaged, the belt 15 is connected to the glass screen 7, and the glass screen 7 is moved together with the belt 15 to close the opening 9. Then, when the belt 15 is wound up, 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 below a predetermined value, and a gap is formed in the opening 9 due to rebound. The opening 9 is surely closed by the glass shoji 7 without occurring.

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 tool. 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 screens 47 located inside and outside the building,
The self-closing devices 43 are provided respectively corresponding to the two glass shoji 47, and since both the self-closing devices 43 have the same structure,
Similar to the first embodiment, description will be given of the case of applying the glass shoji 47 located inside the building.

The window frame 45 includes a kamoi 4501, a sill 4503,
Each glass shoji 47 is composed of a vertical frame 4505, and each glass shoji 47 has a frame 4701 and a glass plate 470 fitted in the frame 4701.
3 and 3. As shown in the exploded perspective view of FIG. 6, the self-closing device 43 includes a case 51, a winding drum 53 arranged in the case 51, and two guide drums 55.
, The rotary damper 57, and the winding drum 5
3, a strip-shaped spring steel plate 59 (corresponding to a connecting member) for connecting 3 and the glass shoji 47, a guide 61, a fuse pin 63 for connecting the tip of the spring steel plate 59 and the tip of the guide 61, and a portion of the spring steel plate 59 near the tip. A locking tool 67 that is provided to engage with the locking tool 65 on the glass screen 47 side is provided. In this embodiment, the fuse pin 63 corresponds to the first engaging means,
The locking tools 65 and 67 correspond to the second engaging means.

The case 51 comprises a substrate 5101 attached to the Kamoi 4501 and a cover 5103 detachably connected to the substrate 5101. The winding drum 53, the guide drum 55, and the rotary damper. 5
Reference numeral 7 designates shafts 5105 and 510 attached to the substrate 5101.
5, 5105 and 5107 are rotatably supported. The spring steel plate 59 has its base end attached to the winding drum 53 and is urged so as to be wound in a string form at all times.
9 has a large number of rack holes 590 at intervals in the longitudinal direction.
1 is formed. The guide 61 guides the movement of the spring steel plate 59, and the fuse pin 63, which is attached to the kamoi 4501 and locks the tip of the guide 61 and the tip of the spring steel plate 59, is in the vicinity of 80 ° C to 100 ° C, for example. It is configured to melt and break at.

As shown in FIG. 7, the rotary damper 57 has a shaft 5107 attached to the substrate 5101 via a nut 5701 and a substantially conical shape attached to the shaft 5107 via a stop ring 5703. Inner member 57
05 and a sprocket 5707 rotatably arranged outside the inner member 5705. Between the sprocket 5707 and the inner member 5705, an annular gap 5709 centering on the shaft 5107 and parallel to the substrate 5101, and an annular gap 5711 centering on the shaft 5107 and extending in a conical surface form an O-ring 5713. The viscous fluid 69 is enclosed in the gaps 5709 and 5711 via 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.
The rotation speed of No. 7 is suppressed below a predetermined value.

Next, the operation of the self-closing device 43 will be described. First, the spring steel plate 59 is pulled out, and the tip of the spring steel plate 59 is engaged with the tip of the guide 61 by the fuse pin 63. In this state, the tensile force acts on the fuse pin 63 by the elastic force of the spring steel plate 59 itself. Since the locking tool 65 and the locking tool 67 are not engaged with each other, the window 41 can be opened / closed by the operation of moving the glass screen 47, similarly to the conventional window having no self-closing device. The window 41 can be left open. If the ambient temperature rises above a prescribed value in the event of a fire, this pulling force will cause the fuse pin 6 to
3 is broken, and the spring steel plate 59 is wound by the winding drum 53. By moving the spring steel plate 59 at this time, the locking tool 6
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 screen 47 is closed, the rotary damper 57
As a result, the speed of the glass shoji 47 is suppressed below a predetermined value,
The opening 49 is reliably closed without a gap being created in the opening 49 due to bounce and the like.

Whether or not a guide is provided is optional. For example, when the belt 15 and the spring steel plate 59 are provided on the threshold side, the guide is not necessary.

[0023]

As is apparent from the above description, in the self-closing device according to the present invention, the sliding door type opening / closing body that opens and closes the opening, the winding drum disposed on the opening side, and the winding device. A connection member wound around the take-up drum, an urging means for urging the take-up drum in a rotational direction for winding the connection member, and a damper for restricting a winding speed of the connection member by the urging means. A front end of a connecting member that is extended from the winding drum along a movement path of the opening / closing body to a position facing at least a part of the opening / closing body located at a position where the opening is fully opened. Also, the first engaging means for releasing the engaged state at a predetermined temperature or higher, and the connecting member side and the opening / closing body side when the connecting member is moved in the winding direction from the unrolled state. The second engaging means Therefore, the opening is usually opened and closed by moving the opening and closing body in the same way as a normal opening that does not have a self-closing device. Can be securely closed.

[Brief description of drawings]

FIG. 1 is a front view of a sliding window to which a self-closing device according to a first exemplary 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 a self-closing device according to a second exemplary 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 reference numerals] 1,41 Slide 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

Claims (4)

[Claims] 1. A sliding door type opening / closing body that opens and closes an opening, a winding drum disposed on the opening side, a connection member wound around the winding drum, and the winding drum. At least an urging unit that urges the connection member in a rotation direction, a damper that restricts a winding speed of the connection member by the urging unit, and an opening / closing body located at a position where the opening is fully opened. A first part that can be engaged with a tip part of a connecting member that is extended along the movement trajectory of the opening / closing body from the winding drum to a portion facing a part and that is released from an engagement state at a predetermined temperature or higher. An engaging means; and a second engaging means for engaging the connecting member side and the opening / closing body side when the connecting member moves in a winding direction from a fed state. Self-closing device. 2. The biasing means is composed of a torsion spring arranged in a closed space inside the winding drum, and the damper includes a large number of orifices formed in the torsion spring and the closed space. The self-closing device according to claim 1, which is composed of a viscous fluid enclosed therein. 3. A large number of holes are formed in the connecting member at intervals in the longitudinal direction, and the damper is provided with a sprocket which can be engaged with the holes, and between the sprocket and a support shaft side of the sprocket. The self-closing device according to claim 1, which is composed of a viscous fluid enclosed therein. 4. The self-closing device according to claim 1, wherein a guide for guiding the movement of the connecting member is provided on the opening side.