JP3043302B2 - Screen 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 screen device, for example, to shield a predetermined position in a building as a fire prevention section to prevent the spread and spread of smoke in the event of a fire. The present invention relates to a device that shields a building to maintain the temperature inside the building and to prevent wind and dust from entering the building.

[0002]

2. Description of the Related Art Heretofore, as this type of screen device, for example, a fire-resistant screen device that shields a predetermined position in a building as a fire protection compartment has been proposed. This refractory screen device includes, for example, a guide rail fixed to both sides of a predetermined position in a building and having insertion openings formed in the up-down direction facing each other, and a guide rail located above the guide rails on both sides. The winding drum is rotatably provided on the winding drum, and is wound around the winding drum so that both ends in the width direction are respectively inserted into the insertion openings of the guide rails on the both sides during the unwinding. A structure comprising: a non-combustible sheet that shields between the guide rails on both sides; and a weight attached to the lower end of the non-combustible sheet and land on the floor between the guide rails on both sides. Has been proposed.

[0003]

In the above refractory screen device, the guide rails on both sides are shielded by lowering the non-combustible sheet body and landing the weight on the floor surface. Since the weight is usually assembled at the lower end of the non-combustible sheet by factory production, the assembly accuracy of the non-combustible sheet or the finish accuracy of the floor at the site where the non-combustible sheet is installed is not sufficient. If enough,
Even if one end of the weight body is placed on the floor, the other end of the weight body is lifted on the floor surface, and a gap is opened between the lower surface of the weight body and the floor surface. This makes it easy for hot air or the like to flow out of the screen, making it impossible to satisfy the smoke shielding performance and fire resistance required for a fireproof screen.

Further, depending on the lower limit stop position of the non-combustible sheet body for rewinding and lowering the non-combustible sheet body from the winding drum to shield the shielded portion, that is, the lowering of the non-combustible sheet body is stopped earlier. In such a case, a gap is created between the lower surface of the weight body and the floor surface.If the noncombustible sheet body is lowered too much, the noncombustible sheet body is loosened and the noncombustible sheet body comes out of the guide rail. Therefore, there is a problem that wrinkles are formed on the non-combustible sheet body, and it becomes difficult to satisfy the smoke blocking performance and the fire resistance performance.

[0005] Further, in the case of a screen device in which a predetermined position in a building is shielded by a sheet member and a weight provided at a lower end portion of the sheet member to prevent wind and dust from entering the building, As in the case of the fireproof screen, a gap is opened between the lower surface of the weight body and the floor surface, so that outside air and the like can easily flow in from the gap, and the airtight performance that prevents wind and dust from entering the building is improved. There is a problem that it cannot be satisfied.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and in each site where a sheet such as a non-combustible sheet is installed, a lower limit lowering stop position of the sheet can be set in accordance with the floor surface. When the sheet body is lowered, the weight body can be airtightly placed on the floor surface without any gap between the lower surface of the weight body and the floor surface. Can meet smoke performance and fire performance,
It is an object of the present invention to provide a screen device capable of satisfying required airtightness in the case of a screen that prevents wind and dust from entering a building.

[0007]

According to a first aspect of the present invention, there is provided a screen device, comprising: a guide rail fixed to both sides of a shielded portion and having insertion openings formed in the vertical direction so as to face each other;
A bracket, which is fixed above and opposed to the guide rails on both sides and has a winding drum rotatably provided thereon, and a winding drum rewindably wound around the winding drum between the brackets on both sides. Sometimes a sheet body which is lowered in a state in which both side ends in the width direction are inserted into the insertion openings of the guide rails on both sides to shield the shielded portion, and a sheet member provided at a lower end portion of the sheet body, A weight body to land on the floor surface, wherein the sheet body is located between the brackets on both sides when the weight body landed on the floor surface and shielded the shielded portion. At both ends in the width direction, engaging projections projecting outward from the both ends are provided, and the brackets at the both sides are provided with the weight body landing on the floor surface. The time is defined as the lowermost lower limit position of the sheet body, With the engagement projection stopper member formed with engagement portions for engaging the end of each, those.

When the sheet body is rewound from the winding drum and lowered at the site where the sheet body is installed, the sheet body has both ends in the width direction along the insertion openings of the guide rails on both sides, and It is lowered smoothly by the weight of the weight. Further, when the weight body is landed on the floor surface of the shielded part, the shielded part is shielded by the sheet body having the weight body at the lower end, and both ends in the width direction of the sheet body are shielded. Engagement protrusions are located between the brackets on both sides.

At this time, between the lower surface of the weight and the floor surface, for example, even if one end of the weight is landed on the floor, the other end of the weight is lifted up on the floor. If there is a gap between the lower surface of the weight and the floor, the other end of the weight is pulled down on the floor, and the entire lower surface of the weight is airtight on the floor. Adjust to land on the ground.

The positions of the engaging projections at both ends in the width direction of the sheet member located between the brackets on both sides are defined as the lowermost lower limit stop positions of the sheet member. A stopper body having an engaging portion that engages with the engaging projections on both side ends in accordance with the engaging projections of the portion is attached to the brackets on both sides.

Therefore, at the site where the sheet body is installed, the lowermost lower limit stop position of the sheet body is defined as the lower limit stop position of the sheet body when the entire lower surface of the weight body is air-tightly landed on the floor surface. The engaging projection of the end portion is engaged with the engaging portion of the stopper body, and the sheet body is installed in a state in which the covered part is entirely airtightly shielded by the sheet body having the weight at the lower end. You.

Next, by winding the sheet around the winding drum, the weight at the lower end of the sheet is lifted to a predetermined standby position above the floor of the shielded portion. And it prepares when this sheet body and the weight body shield the part to be shielded.

Next, for example, in the event of a fire in which the shielded portion is shielded by the sheet body and the weight body, when the sheet body is rewound and lowered from the winding drum, the sheet body has both ends in the width direction. It is smoothly lowered along the insertion openings of the guide rails on both sides and by the weight of the weight body.

When the weight is landed on the floor of the shielded portion, the entire lower surface of the weight is air-tightly landed on the floor, and the weight is placed on the lower end. The shielded portion is shielded by the sheet body, and the engaging protrusions at both side ends in the width direction of the sheet body are engaged with the engaging portions of the stopper body attached to the brackets at both sides, and the sheet body is The descent is stopped as the descent lower limit stop position.

According to a second aspect of the present invention, in the screen device of the first aspect, the stopper body is provided on the bracket so as to be vertically adjustable.

When the weight is landed on the floor surface of the shielded portion, the shielded portion is shielded by the sheet having the weight at the lower end, and both sides of the sheet in the width direction are shielded. The engagement projections at the ends are located on the engagement portions of the stopper bodies provided on the brackets on both sides.

At this time, between the lower surface of the weight and the floor, for example, even if one end of the weight is landed on the floor, the other end of the weight is lifted up on the floor. If there is a gap between the lower surface of the weight and the floor, the other end of the weight is pulled down on the floor, and the entire lower surface of the weight is airtight on the floor. Adjust to land on the ground.

The positions of the engaging projections at both ends in the width direction of the sheet positioned between the brackets on both sides are defined as lower limit stop positions for lowering of the sheet, and both ends in the width direction of the sheet are defined. The stoppers provided on the brackets on both sides are adjusted to move up and down in accordance with the engagement projections of the sheet, and the engagement portions of the stoppers on both sides are engaged with the engagement projections on both ends in the width direction of the sheet body. Fix the stoppers on both sides to the respective brackets in a state where they are aligned with the position of.

Therefore, at the site where the sheet body is installed, the lower limit stop position of the sheet body is defined as the lower limit stop position of the sheet body when the entire lower surface of the weight body is air-tightly landed on the floor surface. The engaging projection of the end portion is engaged with the engaging portion of the stopper body, and the sheet body is installed in a state in which the covered part is entirely airtightly shielded by the sheet body having the weight at the lower end. You.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

Numerals 1 denote left and right vertical guide rails which are vertically fixed to opposing side walls of the shielded portion 2, respectively. The left and right guide rails 1 face each other and are vertically inserted. The opening 3 is formed to have a substantially U-shaped cross section. The insertion opening 3 is formed in the inner plate portion 4 of the guide rail 1, and has a vertical guide piece 5 formed opposite to the opening edge.

A screen box 7 into which the upper ends of the left and right guide rails 1 are inserted is fixed to an upper side wall 6 such as an upper frame of the shielded portion 2. The screen box 7 has a bracket 8 serving also as a side plate and fixed above and opposed to the left and right guide rails 1 and a bottom plate 9 fixed between lower end portions of the left and right brackets 8, respectively. The bottom plate 9 is provided with a left-right guide port 10 which is opened to communicate with the insertion ports 3 of the left and right guide rails 1 respectively.

A take-up shaft 12 having a take-up drum 11 in the left-right direction is rotatably mounted between the left and right brackets 8. One end of the take-up shaft 12 drives the take-up shaft 12. A rotating rotating wheel 13 is fixed. A forward / reverse rotatable motor 14 is fixed in the screen box 7, and a drive wheel 16 is fixed to an output shaft 15 of the motor 14 at a position facing the rotating wheel 13. An endless revolving body 17 is suspended between the reciprocating member 13 and 13.

The motor 14 is operated by an output signal such as a fire signal from control means (not shown). The output of the motor 14 is transmitted to the winding shaft 12 at a reduced speed. Further, the motor 14 is automatically stopped at a predetermined number of rotations set in accordance with a landing position where a weight body to be described later land on the floor surface 18 of the shielded portion 2. ing. The operation of the motor 14 is stopped by a stop signal from the control means, which receives a detection signal detected by a weight body described later landing on the floor surface 18 of the shielded portion 2. You may.

Next, an upper end portion of a vertically movable sheet member 19 for shielding the shielded portion 2 is fixed to the winding drum 11 and is wound around the winding drum 11 so as to be rewound freely. The end portions are formed as insertion portions 20 inserted into the insertion openings 3 of the left and right guide rails 1 so as to be able to move up and down, respectively. 20 is lowered with each of them inserted, so that the shielded portion 2 is shielded.

At the lower end of the sheet member 19, there are provided weight bodies 22, each formed as an insertion portion 21 having both ends inserted into the insertion openings 3 of the left and right guide rails 1 so as to be able to move up and down. The weight body 22 is adapted to land on the floor surface 18 of the shielded portion 2 when the sheet body 19 is lowered. The sheet member 19 is formed of a noncombustible sheet member 23. The noncombustible sheet body 23 is formed of, for example, a single piece of noncombustible cloth made of glass cloth, silica cloth, or the like. The weight body 22 is formed of a non-combustible weight body 24. Hereinafter, the sheet body 19 will be described as a non-combustible sheet body 23, and the weight body 22 will be described as a non-combustible weight body 24.

The non-combustible weight body 24 is folded at the lower end of the non-combustible sheet body 23, and the upper end of the folded piece 25 is overlapped with the non-combustible sheet body 23 to be integrally fixed to each other. A hollow bag-like body 26 formed by opening a portion, and a non-combustible flat plate-like body 27 inserted and housed in the bag-like body 26 through an opening at one end of the bag-like body 26. , Is configured.

The upper end of the folded piece 25 forming the bag-like body 26 is integrally fixed to the non-combustible sheet 23 with non-combustible sewing thread or the like. In addition, the bag-like body
The non-combustible weight 24 is formed into a relatively thin flat plate by accommodating the flat plate-shaped body 27 in 26, and the insertion portions 21 at both ends of the non-combustible weight 24 are inserted. The insertion openings 3 of the left and right guide rails 1 are formed by the flat plate-shaped insertion portions.
Openings are formed at relatively small intervals in accordance with the thickness of 21.

When the non-combustible weight body 24 is landed on the floor surface 18 of the shielded part 2 and shields the shielded part 2, the non-combustible sheet body 23 is located on the left and right sides of the screen box 7. There is a reinforcing member 28 in the width direction of the non-combustible sheet 23 which is located between the brackets 8 and reinforces the non-combustible sheet 23. The reinforcing member 28 includes a first mounting member 29 in the width direction of the non-combustible sheet member 23, a second mounting member 30 mounted along the first mounting member 29, and the first mounting member 29.
And a suspending member 31 fitted and attached along 29.

The first mounting member 29 includes a fitting concave portion 32 having a substantially U-shaped cross section in the width direction of the non-combustible sheet member 23 into which the hanging member 31 is fitted. And upper and lower abutting pieces 33 which are vertically formed in opposite directions to each other at the opening edge of the opening.

The second mounting member 30 includes a contact plate portion 34 in the width direction of the non-combustible sheet body 23 that contacts the outer surface of the fitting recess 32 via the non-combustible sheet body 23, A protruding plate portion 36 which protrudes from the upper end portion and the lower end portion of the abutting plate portion 34 so as to be opposed to each other and which abuts on the upper and lower abutting pieces 33 via the non-combustible sheet member 23. And is formed.

Further, the hanging member 31 is provided with the fitting recess.
32. A prism in the width direction of the non-combustible sheet body 23 fitted in 32.
37, both ends of which are both end portions in the width direction of the non-combustible sheet member 23, that is, engaging projections projecting outward from the insertion portions 20 in opposite directions.
It is formed as 38.

The fitting recess of the first mounting member 29
The contact plate portion 34 of the second mounting member 30 abuts on the outer surface of the non-combustible sheet member 23 via the non-combustible sheet member 23, and the non-combustible sheet contacts the upper and lower contact pieces 33 of the first mounting member 29. The contact ends 35 of the upper and lower protruding plate portions 36 of the second mounting member 30 are in contact with each other via the body 23, and the hanging member 31 is inserted into the fitting recess 32 of the first mounting member 29. The prisms 37 are fitted, and the engagement projections 38 at both ends of the prisms 37 project outward from the insertion portions 20 in opposite directions.

The contact plate 34 of the second mounting member 30
The fixing screws 40 are screwed into a plurality of screw holes 39 formed in the prism 37 at a predetermined interval from each other and tightened, so that they are integrally attached. The joint portion 38 is fixed in a state of projecting outward from the insertion portions 20 in opposite directions.

Next, the left and right brackets 8 of the screen box 7 are moved downward by the non-flammable sheet 23 when the non-flammable weight 24 is landed on the floor 18 of the shielded portion 2. As the lower limit position, that is, the non-combustible sheet 23
The stopper body 41 that engages with the engagement projections 38 at both ends of the prismatic body 37 that protrudes outward in opposite directions from the two insertion portions 20 of the incombustible sheet body 23 as the lower limit stop position of Each has.

The left and right stopper bodies 41 are formed on a vertical mounting substrate 42 to be mounted on the bracket 8 and formed on one side edge of the mounting substrate 42 in the width direction so as to be substantially perpendicular to the mounting substrate 42. A support plate 43 opposed to the winding shaft 12; and a lower end portion of the support plate 43, which is bent at a substantially right angle with respect to the support plate 43 and is formed with an engagement projection 38 at both ends of the prism 37. And a flat plate-shaped stopper 44 as an engaging portion protruding to the lowered position.

The mounting substrate 42 has a vertically long mounting hole 45 at a substantially middle portion in the width direction. The plate-like stopper 44 has a rising protruding piece 46 protruding upward at an edge portion opposite to the support plate 43. The mounting slot 45 of the mounting board 42 communicates with a screw hole 47 formed in the left and right brackets 8.

Then, in a state where the mounting boards 42 of the left and right stopper bodies 41 are respectively in contact with the left and right brackets 8, the left and right mounting boards 42 are formed on the left and right brackets 8 through the long mounting holes 45. Adjustment screw into the screw hole 47
The left and right stopper bodies 41 are attached to the left and right brackets 8 via the mounting slots 45 of the mounting board 42 with the adjusting screws 48 so that the positions of the stopper bodies 41 can be adjusted vertically. I have.

Next, the operation of the above embodiment will be described.

When the non-combustible sheet 23 is rewound from the winding drum 11 at the site where the non-combustible sheet 23 is installed, the non-combustible sheet 23 is inserted into the insertion portions 20 at both ends in the width direction. Along the insertion slot 3 of the guide rail 1
In addition, the insertion portions 21 at both ends in the width direction of the non-combustible weight 24 are smoothly lowered along the insertion openings 3 of the guide rails 1 on both sides due to the weight of the non-combustible weight 24.

Further, the non-combustible weight 24 is placed on the floor of the shielded portion 2.
By being placed on the floor 18, the shielded portion 2 is shielded by a non-combustible sheet 23 having a non-combustible weight 24 at the lower end, and both ends of a reinforcing member 28 attached to the non-combustible sheet 23. The engaging projections 38 of the sections are located between the brackets 8 on both sides of the screen box 7.

At this time, even if one end of the non-combustible weight body 24 lands on the floor 18 between the lower surface of the non-combustible weight body 24 and the floor surface 18, for example, When the other end of the non-combustible weight 24 is lifted onto the floor 18 and a gap is opened between the lower surface of the non-combustible weight 24 and the floor 18, the other end of the non-combustible weight 24 is The lower surface of the incombustible weight body 24 is adjusted so that the entire lower surface of the non-combustible weight body 24 is air-tightly landed on the floor surface 18.

The positions of the engaging projections 38 at both ends in the width direction of the noncombustible sheet member 23 located between the brackets 8 on both sides are defined as the lowermost lower limit stop positions of the noncombustible sheet member 23. A stopper body 41 having an engaging portion, that is, a stopper 44 that engages with the engaging protrusions 38 on both side ends in accordance with the engaging protrusions 38 on both side ends in the width direction of the non-combustible sheet body 23 is provided on both sides. Each is attached to the bracket 8.

That is, the mounting boards 42 of the left and right stopper bodies 41 abut on the left and right brackets 8 respectively, and the left and right brackets 8 are inserted through the mounting long holes 45 of the left and right mounting boards 42.
Adjusting screws 48 are screwed into screw holes 47 formed in
The left and right stopper bodies 41 are provided along the left and right brackets 8 through the mounting long holes 45 of the mounting substrate 42 through which the adjusting screws 48 are inserted.
And adjust the stoppers 44 of the left and right stopper bodies 41 to engage with the lower ends of the engaging projections 38 at both side ends in the width direction of the non-combustible sheet body 23, respectively. Then, the fixing positions of the left and right stopper bodies 41 are positioned, and in this state, the adjusting screws 48 are respectively tightened.

Thus, the left and right stopper members 41 are attached to the left and right brackets 8 respectively, and the stoppers 44 of the left and right stopper members 41 are used as the lower limit stop position of the non-combustible sheet member 23 for stopping the non-combustible sheet member 23. The engagement protrusions 38 at both ends in the width direction are respectively engaged and supported.

Further, at the site where the non-combustible sheet member 23 is installed, the left and right stopper members 41 may be previously mounted on the left and right brackets 8 via adjustment screws 48 so as to be vertically movable. In this case, the adjusting screws 48 to which the left and right stopper bodies 41 are attached are loosened, respectively, and the left and right stopper bodies 41 are respectively lowered and adjusted via the attaching long holes 45 of the attaching substrate 42 using the adjusting screws 48 as guides. The screw 48 is attached in a state where the upper end of the attachment long hole 45 is engaged.

The lower-limit lower-limit stop position of the noncombustible sheet body 23 is set, and the lower end of the engaging protrusion 38 at both ends in the width direction of the noncombustible sheet body 23 is attached to the mounting board.
The left and right stopper bodies 41 are respectively moved upward through adjustment screws 48 inserted through the mounting long holes 45 of the 42, and the stoppers 44 of the left and right stopper bodies 41 are respectively engaged with the lower ends of the engagement projections 38. After adjusting the position, the adjusting screws 48 are tightened respectively.
The engagement protrusions 38 at both ends in the width direction of the noncombustible sheet member 23 may be engaged and supported as the lowermost lower limit stop position of the noncombustible sheet member 23.

Therefore, at the site where the non-combustible sheet member 23 is installed, the lower limit of the lower limit of the non-combustible sheet member 23 is stopped when the entire lower surface of the non-combustible weight member 24 is air-tightly landed on the floor surface 18. The engagement protrusions 38 at both ends in the width direction of the non-combustible sheet body 23 are engaged with the stoppers 44 of the stopper body 41, and the non-combustible sheet body 23 having the non-combustible weight body 24 at the lower end is provided as a position. The non-combustible sheet member 23 is installed in a state where the shielded portion 2 is entirely air-tightly shielded by.

Next, the non-combustible sheet member 23 is
Is wound, the non-combustible weight 24 at the lower end of the non-combustible sheet 23 is raised to a predetermined standby position above the floor 18 of the shielded portion 2. The non-combustible sheet body 23 and the non-combustible weight body 24 prepare for shielding the shielded portion 2.

Next, when the motor 14 is activated by a fire signal during a fire in which the shielded portion 2 is shielded by the non-combustible sheet 23 and the non-combustible weight 24, winding is performed by the output from the motor 14. The shaft 12 is driven and rotated in the direction of rewinding the noncombustible sheet body 23, and the noncombustible sheet body 23 is sequentially rewound from the winding drum 11 of the winding shaft 12.

When the noncombustible sheet 23 is lowered, the insertion portions 20 at both ends in the width direction of the noncombustible sheet 23 are moved along the insertion openings 3 of the left and right guide rails 1.
In addition, the insertion portions 21 at both ends of the noncombustible weight body 24 are smoothly lowered along the insertion openings 3 of the left and right guide rails 1 by the weight of the noncombustible weight body 24.

Further, the non-combustible weight 24 is placed on the floor surface of the shielded portion 2.
By being landed on 18, the motor 14 rotates at a set predetermined number of rotations and stops, and the entire lower surface of the non-combustible weight body 24 is air-tightly landed on the floor surface 18; Incombustible weight
The shielded portion 2 is securely shielded by the non-combustible sheet member 24 and the non-combustible sheet member 23, and the engaging projections 38 at both end portions in the width direction of the non-combustible sheet member 23 are attached to the brackets 8 at both side portions. The stopper body 41 is engaged with the stopper 44 of the stopper body 41, and the lowering of the noncombustible sheet body 23 is stopped at the lowermost lower limit stop position.

Therefore, the lower surface of the noncombustible weight body 24 and the floor surface
The gap between the lower surface of the non-combustible weight body 24 and the floor 18 is hermetically closed without opening a gap between the non-combustible weight body and the non-combustible weight body.
The shielded portion 2 is entirely airtightly shielded by the non-combustible sheet member 24 and the non-combustible sheet member 23. The non-combustible sheet member 23 is prevented from being loosened, slipping out of the insertion opening 3 of the left and right guide rails 1, and forming a wrinkle, etc., and impairing the smoke shielding performance.

Next, even if the non-combustible sheet 23 is pushed by hot air or the like during a fire in which the shielded portion 2 is shielded by the non-combustible sheet 23 and the non-combustible weight 24, the non-combustible In the sheet member 23, the insertion portions 21 at both ends of the nonflammable weight body 24 at the lower end are inserted into the insertion openings 3 of the left and right guide rails 1, and the prism members 37 of the reinforcing member 28 at the upper part thereof. Are supported on the stoppers 44 having the rising protrusions 46 of the left and right stopper bodies 41, so that the engaging projections 38 are prevented from easily bending off from the left and right guide rails 1. You.

Further, due to the weight of the reinforcing member 28 and the non-combustible weight 24, the non-combustible sheet 23 is not easily bent and lifted. A gap through which hot air or the like flows out is not opened, and therefore, the airtightness performance such as smoke shielding and the fire resistance performance are prevented from being impaired.

Therefore, the non-combustible sheet 23 and the non-combustible weight 24 suffice as a fireproof screen in which the shielded portion 2 is shielded. Spread of fire can be prevented.

Next, in a state where the shielded portion 2 is shielded by the sheet body 19 and the weight body 22, the sheet body 19 is
Even if is pushed and pressed, as in the case of the refractory screen, the weight 22 is not lifted onto the floor 18, and between the lower surface of the weight 22 and the floor 18. There is no opening of a gap into which outside air or the like flows, so that outside air or the like hardly flows into the building, so that wind and dust are prevented from entering the building, and airtightness is obtained.

Accordingly, the sheet body 19 and the weight body 22 satisfy a sufficient airtightness as a screen shutter that shields the shielded portion 2 at a predetermined position in the building, so that wind and dust enter the building. Is prevented.

As described above, when the shielded portion 2 is shielded by the non-combustible sheet member 23 and the non-combustible weight body 24, the air-tightness and fire resistance such as sufficient smoke shielding are satisfied as a fire-resistant screen. Further, the shielded portion 2 is formed by the sheet body 19 and the weight body 22.
When the screen shutter is shielded, sufficient airtightness is satisfied as a screen shutter for preventing wind and dust from entering the building.

Next, in the above embodiment, the reinforcing member 28 is composed of a first mounting member 29, a second mounting member 30, and a suspending member 31 formed by a prism 37. Engagement projections 38 projecting outward from both end portions in the width direction of the sheet body 19 (the noncombustible sheet body 23) are provided at both ends of the holding member 31.
However, the present invention is not limited to this, and the reinforcing member 28 may be formed by a pipe body 49.

In this case, for example, as shown in FIG. 7, an insertion hole 50 having both ends opened at the position of the sheet member 19 (the incombustible sheet member 23) to which the reinforcing member 28 is attached in the above embodiment. The non-combustible bag-like body 51 is sewn with a non-combustible sewing thread 52 and attached integrally, and the pipe body 49 is inserted and fixed in the insertion hole 50 of the bag-like body 51. Both ends protrude outward from both ends in the width direction of the sheet body 19 (the noncombustible sheet body 23), and the protrusions at both ends are formed as engagement protrusions 53.

The other configuration is the same as that of the above-described embodiment, and therefore, the same components as those of the above-described embodiment are denoted by the same reference numerals used in the description of the above-described embodiment, and description thereof is omitted.

With this configuration, the sheet member
At the predetermined position of 19 (the noncombustible sheet body 23), the stopper 44
The reinforcing members 28 having the engaging projections 53 at both ends that engage with the reinforcing member 28 are easily attached. Further, the reinforcing member 28 has a small number of components constituting the reinforcing member 28 and has a simple configuration. Then, the same operation and effect as those of the above embodiment can be obtained.

Next, in the above embodiment, the winding drum
When the sheet body 19 (the noncombustible sheet body 23) unwound from the 11 is directly lowered along the insertion opening 3 of the left and right guide rails 1, the stopper bodies 41 are positioned vertically above the guide rails 1 respectively. Although the case where it is adjustable is described above, the present invention is not limited to this, and the sheet member 19 (the non-combustible sheet member 23) rewound from the winding drum 11 is inserted into the insertion openings 3 of the left and right guide rails 1 via the guide rollers 54. In the case of moving down, the stopper body 41 may be attached to the left and right brackets 8 between the winding drum 11 and the guide roller 54.

In this case, for example, as shown in FIG. 8, a left and right guide roller 54 is supported by the left and right brackets 8 at a position above the left and right guide rails 1.
A shaft is freely mounted at 55, and the stopper body 41 is positioned between the winding drum 11 and the guide roller 54 so that the stopper body 41 can be freely adjusted in the front-rear direction on the left and right brackets 8 in the front-rear direction. Attach the stoppers 44 of the left and right stopper bodies 41 to the movement positions of the engagement projections 38, 53 projecting outward from both side ends in the width direction of the sheet body 19 (the noncombustible sheet body 23). Place each.

Further, the engagement projections 38 at both ends of the reinforcing member 28,
The reference numeral 53 is attached to a predetermined position of the sheet member 19 (the noncombustible sheet member 23) as a lower limit lowering stop position of the sheet member 19 (the noncombustible sheet member 23).

The other configuration is the same as that of the above-described embodiment. Therefore, the same components as those of the above-described embodiment are denoted by the same reference numerals used in the description of the above-described embodiment, and description thereof will be omitted.

With this configuration, the sheet member 19 (the non-combustible sheet member 23) unwound from the winding drum 11 is formed.
Is lowered along the insertion openings 3 of the left and right guide rails 1 via the guide rollers 54, and the weight 22 (nonflammable weight 24) at the lower end of the sheet 19 (nonflammable sheet 23) is moved. By landing, the sheet member 19 (the non-combustible sheet member 23) is set at the lowermost lower limit stop position in the width direction of the sheet member 19 (the non-combustible sheet member 23) in the same manner as in the above embodiment. The two engaging projections 38 and 53 projecting outward from the ends are engaged with the stoppers 44 of the left and right stopper bodies 41, respectively.

Further, in each of the above embodiments, the sheet member 19 (the noncombustible sheet member 23) protrudes outward from both lateral ends of the sheet member 19 (the noncombustible sheet member 23). After the engagement projections 38 and 53 have been engaged with the stoppers 44 of the left and right stopper bodies 41, respectively, it is preferable to stop the rewinding and descent at the point where extra rewinding is performed so as to slightly overrun.

Next, in each of the above embodiments, the left and right stopper members 41 are provided with the adjusting screws inserted and screwed into the screw holes 47 of the left and right brackets 8 from the long mounting holes 45 of the mounting substrate 42 of the stopper members 41. Attach them to the left and right brackets 8 with 48, and with the adjusting screw 48 loosened,
When the left and right stopper bodies 41 are moved and adjusted vertically or forward and backward with respect to the adjustment screw 48 within the length direction, and the adjustment screw 48 is tightened at the set position to fix the left and right stopper bodies 41. However, the present invention is not limited to this, and the left and right stopper bodies 41 can be set up and down at the upper outside position of the screen box 7 without using the mounting slot 45 and the adjusting screw 48 inserted into the mounting slot 45. May be adjusted.

In this case, for example, as shown in FIG. 9, the left and right brackets 8 have a vertically flat plate-shaped bracket body 8a, and are integrally formed on the upper end of the bracket body 8a. A horizontal upper end contact plate portion 60 that contacts the lower surface of the top plate 7a of the
A horizontal lower end contact plate 61 formed integrally with the lower end of 8a and in contact with the upper surface of the bottom plate 9 of the screen box 7, and the upper end contact plate 60 and the lower end contact plate 61 facing vertically And a side end plate portion 62 in the vertical direction integrally formed between the end portions.

Further, an insertion hole 63 is formed in the upper end contact plate portion 60 near the upper end of the side end plate portion 62, and the insertion hole 63 is formed near the lower end portion of the side end plate portion 62. The insertion hole
Bearing members 64 are fixed on the lower end contact plate portion 61 immediately below 63, and the guide holes are located above the bearing members 64.
The support pieces 66 each having 65 are integrally fixed on the lower end contact plate portion 61, respectively.

The top plate 7a of the screen box 7
A vertical adjusting screw 68 having a male screw 67 on the outer peripheral surface is inserted into the insertion hole 63 of the upper end contact plate portion 60 and the guide hole 65 of the support piece 66 from above, and the lower end of the adjusting screw 68 is connected to the bearing. Each of the control heads 69 is rotatably supported by a body 64, and an operation head 69 having a diameter larger than that of the adjustment screw rod 68 integrally fixed to an upper end portion of the adjustment screw rod 68 is provided on the top plate 7a so as to be adjustable. . The operation head 69 is formed in a polygonal shape.

A nut-shaped moving body having a female screw 70 in which the male screw 67 of the adjusting screw 68 is screwed to the adjusting screw 68.
The stoppers 72 are integrally fixed to the moving body 71, respectively.

The stopper body 72 includes a vertical plate-like body 73 facing the bracket body 8a,
A vertical contact plate portion 74 formed integrally with one end portion in the width direction of 73 to abut on the side end plate portion 62 and prevent the plate-shaped body portion 73 from rotating, and an upper end of the plate-shaped body portion 73 A stopper 75 as an engaging portion which is formed by opening the upper surface of the portion and is formed at the lower position of the engaging protrusion 53 at both ends of the reinforcing member 28 and which engages and supports the engaging protrusion 53. It is formed.

The other configuration is the same as that of the above-described embodiment. Therefore, the same components as those of the above-described embodiment are denoted by the same reference numerals as used in the description of the above-described embodiment, and the description is omitted.

With this configuration, when the operation head 69 at the upper end of the adjusting screw 68 projecting above the top plate 7a of the screen box 7 is rotated, the adjusting screw
The moving body 71 is vertically moved via a female screw 70 screwed to the male screw 67 with a 68 male screw 67, and a stopper body 72 integrally fixed to the moving body 71 is vertically moved, respectively. The stoppers 75 as the engaging portions of the body 72 can be easily adjusted vertically.

Then, the stoppers 75 are adjusted and set to predetermined positions in the vertical direction, and the sheet members 19 (the non-combustible sheet members 23) are set to the lowermost lower limit position by the stoppers 75. Reinforcing member 28 provided for
Are engaged and supported.

At this time, the plate-like body portion 73 having the stopper 75
When the adjusting screw 68 is rotated, the moving body is moved by the vertical movement of the abutting plate 74 in a state where the abutting plate 74 is in contact with the side end plate 62 of the bracket 8 and along the side end plate 62. The up-down movement is smoothly adjusted in a state where the plate 71 and the plate-like body 73 integrated with the moving body 71 are not rotated without being rotated.

Further, by rotating the operation head 69 at the upper end of the adjusting screw 68 projecting on the top plate 7a of the screen box 7, that is, a stopper having a stopper 75 at the upper outside of the screen box 7 Since the body 72 is adjusted up and down, the adjustment operation of the set position of the stopper body 72 is easily performed as compared with the case where the stopper body 72 having the stopper 75 is adjusted up and down in the screen box 7.

Further, by rotating the adjusting screw 68 with the operation head 69 and vertically moving the stopper body 72 having the stopper 75 via the moving body 71, the sheet body 19 is moved by the stopper body 72. The lower lower limit position of the (noncombustible sheet member 23) is easily finely adjusted.

The vertical movement of the stopper bodies 72 on both sides may be adjusted by operating the operation heads 69 of the adjustment screw rods 68 by the same amount of rotation. 69 is a sheet member 19 (a non-combustible sheet member 23) by adjusting the rotation amount according to need.
The lowermost lower limit position of the sheet body 19 (the non-combustible sheet body 23) is easily finely adjusted in such a state that the weight body 22 (the non-combustible weight body 24) at the lower end is air-tightly landed.

Next, in the embodiment shown in FIG. 9, the left and right stopper bodies 72 are attached to the mounting slot 45 and the mounting slot 45.
The case where the set position is vertically adjusted at the upper position outside the screen box 7 without using the adjusting screw 48 inserted into the screen box 7 has been described. The set position may be adjusted vertically in the lower position.

In this case, for example, as shown in FIG. 10, the bottom plate of the screen box 7 is positioned just below the insertion hole 63 of the upper end contact plate portion 60 of the bracket 8. 9, a lower end of the adjusting screw 68 is rotatably inserted into the inserting hole 76 and the bottom plate 9, and the adjusting screw 68 projects downward from the bottom plate 9. An operation head 77 having a diameter larger than 68 is integrally fixed, and is located on the upper end contact plate 60 of the bracket 8 at the upper end of the adjusting screw 68 and is larger than the insertion hole 63 of the upper end contact plate 60. The retaining body 78 having a diameter is fixed integrally.

Since other configurations are the same as those of the above-described embodiments, the same components as those of the above-described embodiments are denoted by the reference numerals used in the description of the above-described embodiments, and description thereof is omitted.

With this configuration, when the operating head 77 at the lower end of the adjusting screw 68 protruding below the bottom plate 9 of the screen box 7 is rotated, the male screw 67 of the adjusting screw 68 is used. Female screw 70 screwed into male screw 67
The moving bodies 71 are respectively moved up and down through, and the stopper bodies 72 integrally fixed to the moving bodies 71 are respectively moved up and down, and the stoppers 75 as the engaging portions of the stopper bodies 72 are easily moved up and down respectively. Dynamically adjusted.

Then, the stoppers 75 are adjusted and set to predetermined positions in the vertical direction, and the sheet members 19 (the non-combustible sheet members 23) are set to the lowermost lower limit positions by the stoppers 75. Reinforcing member 28 provided for
Are engaged and supported.

Further, by operating the operating head 77 at the lower end of the adjusting screw 68 projecting below the bottom plate 9 of the screen box 7, that is, a stopper having a stopper 75 at the lower outside of the screen box 7. body
72 is adjusted up and down, so this screen box 7
The adjustment operation of the set position of the stopper body 72 is easily performed as compared with the case where the stopper body 72 having the stopper 75 is vertically moved.

The other operations are the same as those in the embodiment shown in FIG. 9 and the description of these operations will be omitted.

Next, in the embodiment shown in FIGS. 9 and 10, the adjusting screw 68 is located at the upper outside on the top plate 7a of the screen box 7 and at the lower outside below the bottom plate 9 of the screen box 7. A case has been described in which the stopper body 72 having the stopper 75 is vertically moved and adjusted by a rotating operation. However, the invention is not limited thereto, and the stopper body 72 having the stopper 75 is located on one surface in the front-rear direction of the screen box 7. The stopper screw 72 having the stopper 75 may be vertically adjusted by rotating the adjusting screw 68.

In this case, for example, an operation portion for rotating the adjusting screw 68 is provided on one surface in the front-rear direction of the screen box 7, and the adjusting screw 68 is provided on this operating portion via a gear mechanism such as a bevel gear. Interlock and link. Then, by rotating the operation unit, the adjusting screw 68 is rotated via the gear mechanism, and the stopper body 72 having the stopper 75 is vertically moved.

[0092]

According to the first aspect of the present invention, the sheet member is
Engagement projections protruding outward from both side edges at both side ends in the width direction located between the brackets on both sides when the weight body has landed on the floor and shields the shielded portion. The brackets on both sides respectively relate to the engaging projections on both side ends of the sheet body when the weight body is landed on the floor surface as the lowermost lower limit position of the sheet body. Since each of the stopper bodies has an engaging portion that fits, at each site where the sheet body is installed, the lowermost lower limit stop position of the sheet body can be set according to the floor surface, and when this sheet body is lowered The weight body can be air-tightly placed on the floor without any gap between the lower surface of the weight body and the floor surface, which affects the assembly accuracy of the sheet body and the finishing accuracy of the floor surface. The weight body can be air-tightly landed on the floor surface without being performed.

Therefore, for example, in the case of a fireproof screen in which the sheet body is a non-combustible sheet body and the weight body is a non-combustible weight body, the smoke shielding performance and the fire resistance performance can be improved. Diffusion and spread of fire can be reliably prevented, and also in the case of a screen shutter for preventing intrusion of wind and dust into the building with a sheet body and a weight body, the airtight performance can be improved. A screen device can be provided.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the stopper body is provided on the bracket so as to be vertically adjustable, the weight body is attached to the floor surface of the shielded portion. When the floor is laid, between the lower surface of the weight and the floor, for example, even if one end of the weight lands on the floor, the other end of the weight is lifted up on the floor. If there is a gap between the lower surface of the weight and the floor, the other end of the weight is pulled down on the floor, and the entire lower surface of the weight is airtight on the floor. The position of the engaging projections at both ends in the width direction of the sheet is defined as the lower limit stop position of the lower end of the sheet, and the engagement between the two ends in the width direction of the sheet is adjusted. The stoppers on both sides are adjusted to move up and down in accordance with the collision portion, and the engaging portions of the stoppers on both sides are adjusted at both ends in the width direction of the sheet body. It can be fixed stopper body on both sides to each bracket in a state in conformity with a position of the engaging projection.

Therefore, at the site where the sheet body is installed, the lower limit stop position of the sheet body is defined as the lower limit stop position of the sheet body when the entire lower surface of the weight body is air-tightly landed on the floor surface. The engaging projection of the end portion is engaged with the engaging portion of the stopper body, and the sheet body is easily sealed in a state in which the shielded portion is entirely airtightly shielded by the sheet body having the weight at the lower end. Can be installed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a part of a screen device showing an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a perspective view of a stopper body engaged with the engaging protrusion.

FIG. 4 is a perspective view of a reinforcing member having an engaging projection according to the first embodiment;

FIG. 5 is a front view of the same screen device.

FIG. 6 is a side view of the same.

FIG. 7 is a perspective view of a part of a sheet member showing another embodiment.

FIG. 8 is a side view of a part of a screen device showing still another embodiment.

FIG. 9 is a perspective view of a part of a screen device showing still another embodiment.

FIG. 10 is a perspective view of a part of a screen device showing still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide rail 2 Shielding part 3 Insertion opening 8 Bracket 18 Floor surface 19 Sheet body 22 Weight body 38,53 Engagement projection 41,72 Stopper body 44,75 Engagement part

Claims (2)

(57) [Claims] 1. A guide rail which is fixed to both sides of a shielded portion and has an insertion opening formed in a vertical direction so as to face each other, and is positioned and fixed above the guide rails on both sides. A bracket having a winding drum rotatably provided thereon, and both ends in the width direction at the insertion openings of the guide rails on the both sides at the time of rewinding and being rewound around the winding drum between the brackets on both sides thereof. A sheet body that is lowered in a state in which the sheet member is inserted and shields the shielded portion, and a weight body provided at a lower end portion of the sheet body and landing on a floor surface of the shielded portion, The body is directed outward at both side ends in the width direction located between the brackets on the both sides when the weight body touches the floor surface and shields the shielded portion. Each having a protruding engagement projection, the both sides The bracket has an engaging portion that engages the engaging protrusions on both side edges of the sheet body when the weight body has landed on the floor surface at the time of landing, as the lowermost lower limit position of the sheet body. A screen device, comprising: a plurality of stopper bodies. 2. The screen device according to claim 1, wherein the stopper body is provided on the bracket so as to be vertically adjustable.