JP2013202340A - Smoke preventive drop curtain device and method for executing work of the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the smoke preventive effects.SOLUTION: A device includes right and left basic supports 10, 20 drooping from its ceiling part a, and a flexible drop curtain body 30 extending between the basic supports 10, 20. At least one of the basic supports of the right and left basic supports 10, 20 includes a nearly columnar winder 12 which can wind the drop curtain body 30, and a cylindrical support 13a rotatably covering and supporting the outer circumference of the winder 12 or the outer circumference of the drop curtain body 30 wound round the winder 12, so that the drop curtain body 30 can stretch by turing the winder 12 in the winding direction.

Description

  The present invention relates to a smoke proof banner device installed on a ceiling or the like in order to prevent the diffusion of smoke generated during a fire or the like, and a method for constructing the smoke proof banner device.

Conventionally, smoke proof curtains provided on the ceiling side of buildings and structures indoors have been made of flat glass from the viewpoints of not obstructing the field of view, not blocking the light from the room lights, and having good design. There were many things. However, since plate glass is heavy and may be damaged, care must be taken during transportation, construction, and storage, and in the unlikely event that it falls due to a disaster such as an earthquake, the impact is large.
Therefore, in recent years, there is a smoke proof curtain using a flexible sheet material. For example, in the smoke proof banner described in Patent Document 1, a flexible sheet material (5) and a sheet material roll in which both end sides are supported by bearings so as to wind up the left end side of the sheet material (5). (4), a box (3) for housing the sheet material winding body (4), and a frame body (8) for fixing the right end side of the sheet material (5). The sheet material (5) is stretched by the winding force of 4).

However, in the conventional smoke proof curtain device, since both ends in the axial direction of the sheet material winding body (4) are supported by the bearings, the vertical dimension of the box (3) for housing the sheet material winding body (4). Will become bigger.
Further, when the sheet material roll (4) is wound and rotated to pull the sheet material (5), the axial tension of the sheet material roll (4) is shifted by the tension of the sheet material (5). The sheet material (5) may be bent and the sheet material (5) may be bent, loosened, wrinkled, or the like.

JP 2007-29109 A

  This invention makes it an example of a subject to cope with the said conventional situation. That is, it is possible to prevent the vertical dimension of the entire apparatus from being increased by a mechanism for winding the hanging curtain body, to prevent the winding body that winds the hanging curtain body from being bent by the tension of the hanging curtain body, It is an object of the present invention to prevent the occurrence of slack, wrinkles and the like, and to improve the smoke-proofing effect.

  One means for solving the above-described problem is a smoke proof curtain comprising left and right support bases arranged in a hanging manner with respect to the ceiling, and a flexible curtain main body extending between the support bases. In the above-described left and right support bases, at least one of the substantially cylindrical winding body capable of winding the hanging curtain body, and the outer periphery of the winding body or the hanging curtain body wound around the winding body. And a cylindrical support portion that slidably contacts the outer peripheral portion and rotatably supports the outer peripheral portion, and the hanging curtain main body is stretched by rotating the winding body in the winding direction. And

  Since the present invention is configured as described above, it is possible to prevent the vertical dimension of the entire apparatus from being increased by a mechanism for winding the hanging curtain body, and to wind up the hanging curtain body by the tension of the hanging curtain body. The object of the present invention can be achieved, for example, preventing bending of the hanging curtain body, preventing bending, slackening, wrinkles, etc., and improving the smoke-proofing effect.

It is a front view which shows an example of the smoke-proof banner apparatus which concerns on this invention. It is a structural diagram of the smoke proof banner device. It is the (III)-(III) sectional view taken on the line of FIG. It is the (IV)-(IV) sectional view taken on the line of FIG. It is the (V)-(V) sectional view taken on the line of FIG. It is a principal part notch structure figure which shows an example of a one way rotation means. It is a front view which shows an example of the smoke-proof banner apparatus which concerns on this invention. FIG. 8 is a structural diagram of the smoke proof banner device of FIG. 7. It is the elements on larger scale of the smoke-proof banner apparatus of FIG.

The first feature of the present embodiment is that a smoke proof curtain comprising left and right support bases arranged in a hanging manner with respect to the ceiling portion and a flexible curtain main body extending between the support bases. In the above-described left and right support bases, at least one of the substantially cylindrical winding body capable of winding the hanging curtain body, and the outer periphery of the winding body or the hanging curtain body wound around the winding body. And a cylindrical support portion that slidably contacts the outer peripheral portion and rotatably supports the outer peripheral portion, and the hanging curtain main body is stretched by rotating the winding body in the winding direction.
According to this configuration, when the winding body is rotated in the winding direction, the cylindrical support portion is in sliding contact with the outer periphery of the winding body and the hanging curtain main body wound around the winding body, and the winding body The rotation continues. Since the outer peripheral portion of the winding body is rotatably supported by the cylindrical support portion, there is no need to use bearings on the upper and lower sides of the winding body, and the vertical dimension of the support base can be set to be relatively small. it can. In addition, since the structure covers and supports the drum body, it is possible to prevent the central side of the winder body from being bent by the tension of the hanging curtain main body. Further, since the gap hardly forms around the winding body, the airtightness inside and outside the hanging curtain body is good. Therefore, it is possible to prevent the hanging curtain body from being bent, slackened, and wrinkled due to the bending of the winding body, and to improve the smoke-proofing effect of the hanging curtain body.

As a second feature, the cylindrical support portion is provided with an opening through which the hanging curtain main body is inserted, and the cylindrical supporting portion has an edge along the opening on the front and back surfaces of the hanging curtain main body. Only one of them is in contact.
According to this configuration, the position of the hanging curtain main body in the thickness direction can be stabilized, and the hanging curtain main body can be pulled in the lateral width direction at the same thickness direction position. Further, since the edge is in contact with only one of the front and back surfaces of the hanging curtain main body, the airtightness of the contact portion is good, and the smoke prevention effect can be further improved.

  As a third feature, as a specific aspect for more effectively preventing the winding body from being bent, the cylindrical support portion is continuous over the entire length in the vertical direction of the hanging curtain body, and the hanging curtain is provided on the outer peripheral portion thereof. It has the said opening part which continues in an up-down direction so that a main body may be penetrated.

  As a fourth feature, as a more specific aspect, one-way rotating means for rotating the winding body only in the winding rotation direction is provided on one end side in the axial direction of the winding body.

  As a fifth feature, a jig engaging portion that allows the winding body to be rotated by a jig is provided at the lower end of the winding body so that the winding operation of the winding body can be performed satisfactorily. The jig engaging portion can be exposed.

  As a sixth feature, as a more specific aspect, the cylindrical support portions are provided on both the left and right support bases, and the winding body is provided only on one of the cylindrical support portions. One end side in the horizontal width direction of the hanging curtain main body is fixed to one cylindrical support portion provided with no winding body, and the other end side of the hanging curtain main body by the winding body in the other cylindrical support portion I was going to wind up.

  As a seventh feature, in order to improve the workability when the hanging curtain body is stretched, a guide rail is provided along the upper end of the hanging curtain body, and the guide rail has a holding portion that is movable in the left-right direction. The upper end side of the curtain main body is sandwiched in the thickness direction by the sandwiching portion.

  Further, the eighth feature is a construction method of a smoke proof banner device having particularly good workability, the step of fixing one end side in the width direction of the banner body to one support base, and A step of clamping the upper end side of the hanging curtain main body to the holding portion while extending the other end side of the horizontal width direction in the horizontal direction; and an outer peripheral portion of the winding body of the other supporting base on the other end side of the hanging curtain main body. And a process of fixing to.

In addition, some of the features described above can be independent inventions that do not include the features described above.
That is, one of the independent inventions is a smoke-proof hanging curtain provided with left and right support bases arranged in a hanging manner with respect to the ceiling portion, and a flexible hanging curtain main body extending between the support bases. A guide rail is provided along the upper end of the banner body, and a clamp portion is provided on the guide rail so as to be movable in the left-right direction. The upper end side of the banner body is clamped in the thickness direction by the clamp portion. It was made to do.
According to the present invention, the work of extending the hanging curtain main body can be performed if the upper end portion of the hanging curtain main body is sandwiched between the sandwiching portions, so that the workability is good. In addition, when the hanging curtain main body is pulled in the left-right direction, the pinching portion moves along the guide rail, so that the hanging curtain main body is less likely to be wrinkled, bent, or loosened.

  Next, a particularly preferred embodiment of the above embodiment will be described in detail with reference to the drawings.

FIG. 1 shows a smoke proof banner according to the present invention and an installation structure of the smoke proof banner.
The smoke proof banner device 1 includes left and right support bases 10 and 20 arranged in a hanging shape with respect to a ceiling portion a, and a curtain main body 30 that extends continuously in the left and right direction between the support bases 10 and 20. And a guide rail 40 along the upper end of the hanging curtain body 30, and the winding curtain body 30 in the support base 10 on one side (right side according to FIG. 1) is rotated in the winding direction so that the hanging curtain body 30 is stretched. I have to.

  As shown in FIGS. 3 and 6, one support base 10 (on the right side according to FIG. 1) includes a storage case 11, and a winding body 12 that winds up one end side of the hanging curtain body 30 within the storage case 11. A support member 13 that rotatably supports the winding body 12, a fixing member 14 that supports the base case side (the right end side in the drawing) of the storage case 11 and the support member 13 and fixes the winding body 12 to the wall surface b, Unidirectional rotating means 15 (see FIG. 6) for rotating the body 12 only in the winding direction.

The storage case 11 includes a first panel 11a and a second panel 11b provided on one side and the other side in the thickness direction of the hanging curtain body 30 and a cover for closing a space between the first panel 11a and the second panel 11b from below. It consists of member 11d.
The first panel 11 a is a panel having a substantially L-shaped cross section (see FIG. 3), is continuous in the vertical direction, and is formed slightly longer than the vertical width of the hanging curtain body 30. On the inner side surface of the first panel 11a on the base end side, a protrusion 11a1 for fitting with the fixing member 14 is formed. The projection 11a1 has a cross-sectional shape (substantially circular in the illustrated example) with the tip side widened, is formed continuously in the vertical direction, and is inserted into the fixing member 14 described later from the upper end or the lower end. And fit.
The second panel 11b is a member provided symmetrically with respect to the first panel 11a with the hanging curtain main body 30 therebetween, and has a protrusion 11b1 like the first panel 11a.
The first panel 11a and the second panel 11b are integrated so as to sandwich a fixing member 14 described later (see FIG. 3). Between the first panel 11a and the second panel 11b, a slit 11c for loosely inserting the hanging curtain body 30 is formed.

  The cover member 11d is detachably fixed to the lower end portions of the first panel 11a and the second panel 11b by a fixing tool such as a screw.

  The winding body 12 is a cylindrical member continuous in the vertical direction, and has a female screw hole 12a (FIGS. 3 and 6) for engaging a unidirectional rotating means 15 described later on the upper end side along the center line. And a jig engaging portion 12b (see FIGS. 2 and 3) for rotating the winding body 12 with a jig is exposed at the lower end side. Further, an engagement recessed portion 12c (see FIG. 3) for fitting one end side of the curtain main body 30 is provided on the outer peripheral portion of the winding body 12. The winding body 12 is formed to have substantially the same length as the vertical height of the hanging curtain body 30.

The jig engaging portion 12b is a hexagonal hole into which a rotation operation jig 100 (for example, a hexagon wrench) can be inserted.
Further, the engaged recess 12c is formed in a groove shape that extends in the axial direction of the winding body 12 and has a cross-sectional shape (in the illustrated example, a substantially circular shape) in which the interior is widened. An engaging portion 31 fixed to one end side of the hanging curtain main body 30 is inserted into the engaged recessed portion 12c from the lower end portion thereof.

  The support member 13 includes a cylindrical support portion 13a that rotatably covers and supports the outer periphery of the winding body 12 or the hanging curtain main body 30 wound around the winding body 12, and is fixed to the cylindrical support portion 13a. A connecting portion 13b connected to the member 14 is provided, and a space 13d for engaging a unidirectional rotating means 15 described later is secured between the cylindrical support portion 13a and the connecting portion 13b.

  The cylindrical support portion 13a is substantially in cross section with an inner diameter slightly larger than the outer diameter of the winding body 12 so as to be in sliding contact with the outer peripheral portion of the winding body 12 or the outer peripheral portion of the hanging curtain main body 30 wound around the winding body 12. It is formed in a C shape and is continuous over the entire length of the hanging curtain body 30 in the vertical direction. The cylindrical support portion 13a has an opening 13a1 that is continuous in the vertical direction so as to be inserted through the hanging curtain main body 30. Further, an engaged recess 13a2 is formed in the inner peripheral portion of the cylindrical support portion 13a.

The opening 13a1 is provided over the entire length of the cylindrical support portion 13a in the vertical direction, and passes through the hanging curtain body 30 from below. The opening 13a1 is arranged on one side of the hanging curtain main body 30 in the thickness direction (lower side according to FIG. 3). The center position of the opening 13a1 is shifted to one side in the circumferential direction of the cylindrical support portion 13a with respect to the hanging curtain main body 30.
And the cylindrical support part 13a has the edge part 13a3 and the edge part 13a5 along the up-down direction of this opening part 13a1 on the one side and other side which pinch | interpose the opening part 13a1 in the circumferential direction, and one of them (FIG. 3). The edge 13a3 on the upper side in the middle is brought into contact with the surface on the one side of the curtain main body 30 at a substantially right angle from the thickness direction side, and the opposite surface of the banner main body 30 (the lower side in FIG. 3) The surface of the surface is not touched.
According to this configuration, the position of the hanging curtain body 30 in the thickness direction can be stabilized, and the hanging curtain body 30 can be pulled in the width direction at the same thickness direction position. As well as improving, it is possible to suppress the bending, loosening, and wrinkles of the curtain main body 30. Further, since the edge portion 13a3 is in pressure contact with only one of the front and back surfaces of the hanging curtain main body 30, the airtightness of the pressure contact portion is good, and as a result, the smoke prevention effect can be improved.

  The engaged recess 13a2 is formed in a groove shape that extends in the vertical direction of the support member 13 and has a cross-sectional shape (in the illustrated example, a substantially circular shape) with an expanded interior. An engaging portion 31 fixed to one end side of the hanging curtain main body 30 can be inserted into and engaged with the engaged recess 13a2 without using the winding body 12.

  The connecting portion 13b is a portion having a substantially L-shaped cross section connected to the cylindrical support portion 13a, and is fastened to the fixing member 14 by a fastening tool 13c such as a bolt, a screw, or a rivet (in the illustrated example, the bolt ).

  The fixing member 14 includes a fastening member 14a fastened to the wall surface b by a fastening tool 14c, and a receiving member 14b into which the fastening tool on the connection portion 13b side is screwed, and is continuous in the vertical direction. doing.

  The fastening member 14a is a member having a concave cross section, and is fastened to the wall surface b by the fastening tool 14c. A fitting recessed portion 14a1 for fitting the protrusion 11a1 (or 11b1) of the storage case 11 is formed on one end side surface and the other end side surface of the fastening member 14a in the thickness direction of the hanging curtain body 30. Each of the recessed portions 14a1 to be fitted has a cross-sectional shape (in the illustrated example, a substantially circular shape) in which the inside is widened, and is formed in a groove shape extending over the entire length of the fixing member 14. The protrusion 11a1 of the first panel 11a or the protrusion 11b1 of the second panel 11b is inserted into the fitted recess 14a1 from the lower end or the upper end thereof.

  The receiving member 14b is fitted to the support member 13 side of the fastening member 14a. More specifically, two grooves 14a2 and 14a2 that are opposed to the hanging curtain body 30 in the thickness direction and are continuous in the vertical direction are provided on the inner side of the fastening member 14a having a substantially concave cross section. The receiving member 14b is formed in a rectangular plate shape that is long in the vertical direction, and fits between the two grooves 14a2 and 14a2. The receiving member 14b is provided with a female screw for screwing the fastener 13c.

  As shown in FIG. 6, the one-way rotating means 15 includes a ratchet device 15 a and a shaft-like member 15 b that fits into the ratchet device 15 a and rotates in one direction (winding direction of the winding body 12). Composed.

  The ratchet device 15a is configured to be bent so as to be bent with respect to the base portion 15a1, a base portion 15a1 mounted on the upper end portion of the support member 13, an annular engagement portion 15a2 that rotates only in one direction within the base portion 15a1. And a hook-like locking engagement portion 15a3 connected to the.

  The base portion 15a1 includes a mechanism (not shown) such as a claw gear mechanism or a one-way clutch mechanism inside, thereby supporting the annular engagement portion 15a2 so as to rotate only in one direction.

  The annular engagement portion 15a2 has a fitting portion that fits on the outer peripheral portion of the shaft-like member 15b on the inner peripheral surface thereof. According to the illustrated example, the fitting portion is a hexagonal hole.

The rotation engaging portion 15a3 is pivotally supported so as to rotate in the vertical direction with respect to the base portion 15a1, and when rotated downward, a cross section between the cylindrical support portion 13a and the connection portion 13b in the support member 13. It fits in the substantially concave space 13d (see FIG. 3).
Therefore, the anti-rotation engaging portion 15a3 abuts on the connection portion 13b of the support member 13 in one of the rotational directions (counterclockwise in the illustrated example), and the cylindrical support portion 13a in the other rotational direction. Since it contacts the protruding piece 13a4 protruding from the outer peripheral portion, it is held so as not to rotate in any of the circumferential directions.

The shaft-shaped member 15b includes a lower screw shaft portion 15b1, a first nut portion 15b2 connected to the upper end of the screw shaft portion 15b1, and a washer portion 15b3 connected to the upper end of the first nut portion 15b2. And a second nut portion 15b4 connected to the upper end of the washer portion 15b3, and is formed into an integral substantially bolt shape (see FIG. 6).
The screw shaft portion 15b1 is a shaft formed in a male screw shape that is screwed into the female screw hole 12a on the upper end side of the winding body 12.
The first nut portion 15 b 2 is a portion formed in a hexagonal nut shape that fits into the annular engagement portion 15 a 2 of the one-way rotating means 15.
The washer portion 15b3 is a washer-shaped portion formed so as to be in contact with the upper end surface of the annular engagement portion 15a2 of the one-way rotating means 15.
The second nut portion 15b4 is a hexagonal head portion located at the uppermost end portion, and a jig can be fitted to a spanner or the like.
The shaft-like member 15b of this embodiment is configured by screwing and welding a washer-attached nut consisting of a washer portion 15b3 and a first nut portion 15b2 to a bolt consisting of a second nut portion 15b4 and a screw shaft portion 15b1. .
The shaft-shaped member 15b having the above-described configuration is tightened by screwing the first nut portion 15b2 to the upper end side of the winding body 12. Therefore, according to this configuration, the shaft-shaped member 15b and the annular engagement portion 15a2 are unidirectionally disposed with respect to the non-rotatable support member 13 and the base portion 15a1 and the rotation-engaging engagement portion 15a3 of the one-way rotation means 15. It rotates only in the winding direction of the winding body 12.

As shown in FIG. 4, the support base 20 includes a storage case 21, a support member 23 that supports the other end portion (left end side in the illustrated example) of the hanging curtain main body 30 in the storage case 21, and a storage And a fixing member 24 that supports the base end side (the left end side in the drawing) of the case 21 and the support member 23 and fixes the case 21 and the wall surface c.
The storage case 21, the support member 23, and the fixing member 24 are members configured symmetrically with the storage case 11, the support member 13, and the fixing member 14 (see FIG. 3) described above, respectively.

That is, the storage case 21 includes the first panel 21a and the second panel 21b in the same manner as the storage case 11, and has a slit 21c through which the hanging curtain main body 30 is inserted. Moreover, the opening part of the lower end side of the 1st panel 21a and the 2nd panel 21b is block | closed with the detachable cover member 21d.
The support member 23 has a cylindrical support portion 23a, an opening portion 23a1, an engaged recess portion 23a2, an edge portion 23a3, a connection portion 23b, and the like in the same manner as the support member 13, and is fixed to the fixing member 24 by a fastening tool 23c. It is fixed.
Similarly to the fixing member 14, the fixing member 24 includes a fixing member 24a, a receiving member 24b, and the like, and is fixed to the wall surface c by a fixing tool 24c.

  Then, the support base 20 having the above-described structure fits the engaging portion 31 on the other end side of the curtain main body 30 directly into the engaged recess 23a2 in the cylindrical support portion 23a without the winding body 12 interposed. It is fixed.

In addition, the curtain main body 30 is, for example, a flame retardant fabric such as a glass cloth or a silica cloth, a vinyl chloride resin sheet material subjected to fluorine processing, a synthetic resin sheet material containing glass fibers, etc. Accordingly, it is constituted by a flexible sheet material having fire resistance (including flame retardancy). The banner body 30 is particularly preferably a flat surface that is long in the width direction from a translucent sheet material from the viewpoints of not obstructing the field of view, not obstructing the light of the room light, and having good design properties. It is formed in a substantially rectangular shape.
Engaging portions 31 are fixedly fixed to the left and right ends of the curtain main body 30. Each engagement portion 31 is a substantially round bar-shaped member made of a metal material, a synthetic resin material, or the like, and is fixedly fixed to the end portion of the hanging curtain main body 30.

  The hanging curtain body 30 having the above-described configuration is hung with the upper end portion sandwiched between guide rails 40 described later (see FIG. 5).

The guide rail 40 is a long member extending between the left and right support bases 10 and 20, and is fixed to the long ceiling-side fixing member a1 fixed to the ceiling portion a as shown in FIG. It is fastened and fixed by a tool a2 (for example, a screw or a bolt).
The guide rail 40 has a fixing member 41 fixed to the ceiling-side fixing member a1, an attaching / detaching piece 42 attached to and detached from the fixing member 41, and an internal space between the fixing member 41 and the attaching / detaching piece 42 in the left-right direction. A movable single or plural (two in the illustrated example) clamping part 43 is provided, and the upper end side of the curtain main body 30 is clamped by the clamping part 43 in the thickness direction.

  The fixing member 41 is a member having a substantially U-shaped cross section that is continuous between the left and right support bases 10 and 20, and supports a detachable piece 42 to be described later so as to be movable in the left-right direction. A concave groove 41a that is continuous in the left-right direction is provided. In addition, an opening 41b that exposes the clamping portion 43 to the outside is formed on one side of the fixing member 41 in the thickness direction of the hanging curtain body 30 (right side according to FIG. 5).

  The detachable piece 42 is a member that closes the opening 41b of the fixing member 41, is formed in an L-shaped cross section that is continuous in the left-right direction, and is fixed to the fixing member 41 by a fastener 42a (for example, a screw or a bolt). It is detachably fixed to.

The sandwiching portion 43 includes a slide piece 43a that is slidably fitted in the concave groove 41a of the fixing member 41, a sandwich piece 43b that sandwiches the upper end portion of the hanging curtain body 30 between the slide piece 43a, and the slide pieces 43a. And a fastening tool 43c for fastening the clamping piece 43b.
According to the illustrated example, the slide piece 43a is formed in a cross-sectional concave shape having an opening at the bottom, and one piece protruding downward is fitted into the groove 41a.
The sandwiching piece 43b is a member formed in an inverted L-shaped cross section that overlaps the other piece side of the slide piece 43a.
According to the illustrated example, the fastener 43c includes a butterfly screw that is inserted through the slide piece 43a and the sandwiching piece 43b, and a nut that is screwed onto the tip side of the butterfly screw.
The slide piece 43a and the holding piece 43b are short members provided in a part in the width direction with respect to the long fixing member 41 and the detachable piece 42.

Next, an example of a construction procedure for the smoke proof banner device 1 having the above-described configuration will be described in detail.
First, the guide rail 40 is attached to the ceiling part a, and the support bases 10 and 20 are attached to the left and right wall surfaces b and c. These mounting orders are arbitrary.

  Next, the engagement portion 31 on the end portion side (left end side in the illustrated example) of the hanging curtain main body 30 is fixed to the support member 23 in the support base 20. At this time, the end side of the curtain main body 30 is inserted from below into the storage case 21 with the cover member 21d removed. The hanging curtain main body 30 is inserted into the slit 21c between the first panel 21a and the second panel 21b, and the engaging portion 31 on the end side of the hanging curtain main body 30 is in the engaged recess 23a2 in the cylindrical support portion 23a. Is inserted from below. Then, the cover member 21d is attached.

Next, the upper end side of the curtain main body 30 is clamped by the clamping part 43 while the opposite end side of the banner main body 30 is extended to the support base 20 side.
More specifically, the upper end portion of the curtain body 30 is approached from the lower side to the guide rail 40 with the detachable piece 42 removed and the holding portion 43 exposed, and the upper end portion is a slide piece in the holding portion 43. It clamps between 43a and the clamping piece 43b, the fastening tool 43c is clamped, and the attachment / detachment piece 42 is mounted | worn after that. The curtain body 30 is inserted between the fixing member 41 and the sandwiching portion 43, and the upper end portion is sandwiched by the sandwiching portion 43 so that it does not fall downward.

  Next, the end side (right end side according to the illustrated example) of the curtain main body 30 is extended to the support base 10 side. At this time, since the sandwiching portion 43 slides freely within the guide rail 40, it is possible to prevent excessive tension or wrinkles from being generated on the hanging curtain body 30.

  And the said edge part side of the curtain main body 30 is inserted from the downward side with respect to the storage case 11 of the state from which the cover member 11d was removed. The hanging curtain main body 30 is inserted into the slit 11c between the first panel 11a and the second panel 11b, and the engaging portion 31 on the end side of the hanging curtain main body 30 is in the engaged recess 12c on the outer periphery of the winding body 12. Is inserted from below.

Next, the rotary operation jig 100 is fitted to the jig engaging portion 12b at the lower end of the winding body 12, and the rotary body 12 is rotated only in the winding direction by rotating the rotation operation jig 100. Rotating, and the curtain main body 30 is pulled.
A cover member 21 d is attached to the lower end of the storage case 21.

  Further, when it becomes necessary to loosen the hanging curtain body 30, the cover member 11d and the first panel 11a or the second panel 11b are removed, and the rotation engaging portion 15a3 of the ratchet device 15a is swung upward (FIG. 6). Reference), the shaft-like member 15b may be loosened.

Therefore, according to the smoke proof curtain device 1 having the above-described configuration, since the bearing is not used on the upper and lower sides of the winding body 12, the vertical dimension of the support bases 10 and 20 can be set to be relatively small. In addition, since the winding body 12 or the hanging curtain body 30 wound around the winding body 12 is covered and supported, it is possible to prevent the central side of the winding body 12 from being bent by the tension of the hanging curtain body 30. As a result, it is possible to prevent the hanging curtain body 30 from being bent, slackened, or wrinkled due to the bending of the winding body 12.
Moreover, since it is a structure with which a clearance gap is hard to produce around the winding body 12, airtightness is favorable and smoke prevention effect is comparatively high.
Furthermore, at the time of construction, the upper end portion of the hanging curtain main body 30 can be easily hung, the workability is good, and the clamping portion 43 holding the hanging curtain main body 30 slides freely. It is difficult to cause slack and wrinkles.

  Next, the embodiment shown in FIGS. Since the smoke proof banner device 2 of this embodiment is a partial modification of the configuration of the smoke proof banner device 1, the changed portion will be mainly described in detail, and the redundant description will be omitted.

  This smoke proof banner device 2 is different from the smoke proof banner device 1 having the above-described configuration in that the draping main body 30 is replaced with a draping main body 30 ′, a flexible long member 50 is provided on the lower end side of the draping main body 30 ′, The flexible elongate member 50 is provided with tension generating means 60 for generating a tension higher than the tension in the width direction of the hanging curtain body 30 ′.

The curtain main body 30 ′ is provided with a through-hole-shaped insertion portion 32 extending in the lateral width direction at a lower end side portion of the banner main body 30 having the above-described configuration.
The inserted portion 32 is formed in a bag shape in cross section by fastening the lower end side of the hanging curtain main body 30 'upward, and is capable of moving the flexible long member 50 in the lateral width direction and in the vertical direction. Insert so as not to move to.

According to the present embodiment, the flexible long member 50 is a metal wire.
The flexible long member 50 is inserted into the insertion portion 32 of the hanging curtain main body 30 ′, and at least one end side thereof is fixed to the non-moving portion (the support bases 10 and 20 in the illustrated example) via the tension generating means 60. Worn. In addition, according to the illustrated example, the tension generating means 60 is interposed on both ends, but the tension generating means 60 may be interposed only on one side, and the other may be directly attached to the immobile site.
The end of the flexible long member 50 exposed from the insertion part 32 is inserted into the fixing member 62 of the tension generating means 60, and the leading end side is pulled out to prevent the fixing member 62 from coming off. The stop member 51 (for example, a wire sleeve) is fastened.

  As shown in FIG. 9, the tension generating means 60 includes a shaft-like member 61 that is fixed to the immovable portion, and is inserted into the shaft-like member 61 in an annular shape so that the end of the flexible long member 50 is fixed. And a screwing member 63 that is screwed in an annular manner with the shaft-like member 61 on the hanging curtain main body 30 side of the fixing member 62.

  According to the illustrated example, the shaft-shaped member 61 is a bolt having a hexagonal hole in the head and a male threaded portion in the shaft, and is arranged so as to be substantially parallel to the flexible long member 50, and is on the distal end side. Is screwed into the receiving member 14b in the fixing member 14 which is a stationary part.

  The to-be-fixed member 62 is a plate-like member having a penetrating large-diameter hole 62a through which the shaft portion of the shaft-shaped member 61 is loosely inserted and a penetrating small-diameter hole 62b through which the flexible long member 50 is inserted. It is. The to-be-fixed member 62 is annularly attached to the shaft portion of the shaft-like member 61, and is held in a state where the flexible long member 50 is inserted through the small diameter hole 62b.

  According to the illustrated example, the screwing member 63 is a hexagonal nut, and is screwed to the hanging curtain main body 30 side with respect to the to-be-fixed member 62 in the shaft portion of the shaft-like member 61.

  In the same manner as the smoke curtain device 1, the smoke curtain device 2 having the above-described configuration is installed between the support bases 10 and 20, and then the left and right tension generating means 60 are screwed onto the support bases 10 and 20, respectively. Combined.

  Then, after applying tension to the curtain main body 30 ′ by winding the winding body 12, the screw member 63 of the tension generating means 60 is tightened to move the to-be-bonded member 62, and the flexible long member 50, tension higher than the tension of the curtain main body 30 ′ due to winding of the winding body 12 is generated.

Therefore, according to the smoke proof banner device 2 having the above-described configuration, when tension is generated in the flexible long member 50 by the tension generating means 60, the banner main body 30 ′ inserted through the flexible long member 50 is provided. The lower end side is difficult to bend in the thickness direction, and as a result, it is possible to prevent the lower end side of the curtain main body 30 'from rising due to hot air or a pressure difference at the time of a fire and impairing the smoke-proof function.
In particular, the smoke proof banner device 2 effectively exhibits the above-described effects when the dimension in the width direction is relatively long.

  According to the above embodiment, the left and right support bases 10 and 20 are mounted on the left and right wall surfaces b and c. However, as another example, one or both support bases 10 and 20 are suspended from the ceiling part a. It is also possible to adopt a structure that is fastened to the surface.

  Moreover, according to the said Example, although the cylindrical support part 13a was formed in the cross-sectional substantially cylindrical shape (in other words, cross-sectional C shape) which has the opening part 13a1, as an other example of a cylindrical support member, it is an opening. It is also possible to form in a square tube shape having a section (for example, a substantially triangular tube shape, a substantially square tube shape, a substantially hexagonal tube shape, etc.).

  Moreover, in the smoke proof banner device 1, the winding body 12 is provided only on one of the left and right support bases 10 and 20 (the support base 10 in the illustrated example). It is also possible to provide the winding body 12 so that the end of the hanging curtain main body 30 is fixed to the winding body 12.

Further, in the smoke proof banner device 2, the tension generating means 60 is linearly arranged on the extension line of the flexible long member 50. However, as another example, the flexible long member 50 is used as an immobile part. The direction is changed upward by hanging on the supported pulley-like member or U-shaped member, and the tension generating means 60 is provided between the upward end portion of the flexible long member 50 and the ceiling portion a. It is also possible to do.
Furthermore, as another example, it is possible to provide the tension generating means in the midway portion of the flexible long member 50 in the length direction.

  As another example of the tension generating means, a mode in which a turn buckle is provided between the end of the flexible long member 50 and the stationary part, or between the flexible elongated member 50 and the stationary part. It is possible to adopt an aspect in which an elastic body such as rubber or a tension spring is provided.

  In the smoke proof banner device 2, the tension generating means is connected in the length direction of the flexible long member. However, as another example of the tension generating means, the flexible long member itself is used. It is also possible to form a long elastic body such as rubber or a tension spring.

  Further, in the smoke proof banner device 2, the flexible long member 50 is inserted through the through-hole-like inserted portion 32 continuous in the lateral direction, but as another example, in the thickness direction on the lower end side of the banner body. It is also possible to provide penetrating through-holes at intervals, and to insert the flexible long member 50 into the plurality of through-holes in a wave stitch shape and pull both ends thereof.

  In the above embodiment, the hanging curtain body 30 (or 30 ') is formed in a flat surface shape. However, as another example, the hanging curtain body can be formed in a curved surface shape or a bent shape.

  Further, in the smoke proof curtain device 2, the insertion part 32 is formed integrally with the banner main body 30 '. However, as another example, a separate insertion part can be attached to the banner main body.

  Further, in the smoke proof curtain device 2, the inserted portion 32 is continuously provided over substantially the entire length in the width direction of the hanging curtain body 30 ′, but as another example, the inserted portion having substantially the same cross-sectional shape is provided. It is also possible to provide a part in the horizontal width direction, or to provide a plurality of insertion parts having substantially the same cross-sectional shape at intervals in the horizontal width direction of the hanging curtain main body.

  It is also possible to connect a plurality of smoke proof banner devices 1 (or 2) in the width direction. In this case, the support base 10 between adjacent smoke proof banner devices 1, 1 (or 2, 2) and The support base 20 may be connected by a fastening tool or the like, or adjacent smoke-proof banner devices 1, 1 (or 2, 2) may be connected via an intermediate member (not shown) such as a middle pillar. It is also possible to connect. Or you may make it connect smoke-proof banner apparatus 1,1 (or 2,2) via the member (not shown) of the shape which joined the support base 10 and the support base 20 back to back.

DESCRIPTION OF SYMBOLS 1, 2, Smoke prevention curtain device 10,20 Support base body 30,30 "Draft curtain main body 12 Winding body 12b Jig engaging part 13 Support member 13a Cylindrical support part 13a1 Opening part 13a3 Edge 15 One-way rotating means 40 Guide rail 43 Clamping part a Ceiling part b, c Wall surface

Claims (8)

In a smoke-proof hanging curtain provided with left and right support bases arranged in a hanging shape with respect to the ceiling, and a flexible hanging curtain main body extending between these support bases,
The at least one of the left and right support bases has a substantially cylindrical winding body capable of winding the hanging curtain main body, and the outer circumferential portion of the winding body, or the outer circumferential portion of the hanging curtain body wound around the winding body. And a cylindrical support portion that covers and supports the outer peripheral portion in a rotatable manner so that the hanging curtain body is stretched by rotating the winding body in the winding direction. Smokeproof curtain device.   The cylindrical support portion is provided with an opening through which the hanging curtain main body is inserted, and the cylindrical supporting portion abuts an edge portion along the opening with only one of the front and back surfaces of the hanging curtain main body. The smoke-proof banner device according to claim 1, wherein   The cylindrical support part is continuous over the entire length in the vertical direction of the hanging curtain main body, and has an opening that is continuous in the vertical direction so as to pass through the hanging curtain main body at the outer periphery thereof. 2. A smoke-proof banner device according to 2.   4. The smoke-proof device according to claim 1, further comprising: a one-way rotating unit configured to rotate the winding body only in a winding rotation direction on one end side in the axial direction of the winding body. Banner device.   2. A jig engaging portion that allows the winding body to be rotated by a jig is provided at a lower end portion of the winding body, and the jig engaging portion can be exposed. 4. A smoke-proof banner device according to any one of 4 above.   Both the left and right support bases are provided with the cylindrical support portions, and one of the two cylindrical support portions is provided with the winding body, and one of the cylindrical support portions does not include a winding body. The one end side in the width direction of the hanging curtain main body is fixed to a portion, and the other end side of the hanging curtain main body is wound up by the winding body in the other cylindrical support portion. The smoke-proof banner device according to any one of 5 to 5.   A guide rail is provided along the upper end of the hanging curtain main body, a holding portion is provided on the guide rail so as to be movable in the left-right direction, and the upper end side of the hanging curtain main body is held in the thickness direction by the holding portion. The smoke proof banner device according to any one of claims 1 to 6, wherein the smoke proof banner device is provided.   A step of fixing one end side of the banner body in the width direction to one support base, and the other end side of the banner body in the width direction being stretched in the horizontal direction, and holding the upper end side of the banner body in the holding portion The construction of the smoke proof banner device according to claim 7, further comprising: a step of attaching the other end side of the hanging curtain main body to an outer peripheral portion of the winding body of the other supporting base. Method.

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