JPH10169340A - Opening/closing structure of shading film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop an openable/closable shading film in the space between a three-dimensional truss structure and sushes, by winding inside a tensile wire drawing the front head core material and a member body to the developing direction and a tensile wire with a shifted traveling direction and containing them, in the space between a vertical frame and a roof panel supported at the peripheral sides by the lateral frame. SOLUTION: One end of a tensile wire 17 is anchored to one of grooved drums 20 fitted to both ends of a winding-up pipe 18 for the wire and the other end thereof is anchored to another winding-up pipe 18 for the wire through one front head guide-traveling groove 36, the front head core material 15, and the other front head guide-traveling groove 36. That is, the wire 17 extended from the wire insertion hole of the front head core material 15 is deviated almost orthogonally at the front head guide 16 in a specified curvature, and arranged along the front head guide-traveling groove 36 and further, shifted againd at the almost right angle through a deviation sheave 22 in a winding-up wire-containing box 19 and led to a traverser 23 as a lateral transfer member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding film opening / closing structure, and more particularly, to a space truss structure which constitutes a space frame and which is incorporated between a sash for supporting a glass panel and a space truss structure. The present invention relates to a light shielding film opening / closing structure in which a light shielding film is developed in a space between the light shielding film and the structure.

[0002]

2. Description of the Related Art In recent years, various space structures have been realized in which the exterior surface of a three-dimensional truss structure constituting a so-called space frame is covered with a special glass sash for supporting a roof panel such as a sheet glass to enhance indoor lighting. The applicant has proposed various sashes for a roof panel in which a dedicated glass sash is supported by gloves corresponding to lattice points of a three-dimensional truss structure (Japanese Patent Application Laid-Open No. 5-25893, Japanese Patent Publication No. 7-3060).
No. 2, etc.). According to these roof panel sashes, the glass panel incorporated in the skylight is firmly supported by a functionally devised sash having a sectional shape.

Further, since a sealing member such as a synthetic rubber gasket is mounted around a roof panel made of sheet glass (hereinafter, referred to as a glass panel), it is required to maintain high watertightness against wind and rain. Can be. Each sash is systematized in shape and size, and modules of each standard are manufactured at the factory. For this reason, there is an advantage that work for assembling each module is mainly performed at the site, and construction can be easily performed in a short time. Although the skylight is also called a top light, in this specification, a lighting structure in which a transparent or transmissive glass is incorporated is called a skylight.

[0004] By the way, as described above, the space structure covered with the skylight can sufficiently take in natural light therein, but depending on the application, it may be necessary to block natural light. In response to such a demand, in a conventional space structure having a space truss structure, a method of developing a light shielding film or the like along the lower chord material of the space truss and shielding natural light radiating indoors has been adopted.

[0005]

However, conventional skylight sashes having a light-shielding film are often designed so that the light-shielding film is developed in an internal space covered with a three-dimensional truss structure. For this reason, there is a construction problem that the number of steps for attaching the light-shielding film to the three-dimensional truss structure increases, which leads to a complicated construction. In addition, since the light-shielding film is retrofitted, the appearance from below is poor, and the expanded light-shielding film partitions a part of the internal space, so that there is a problem that a sufficient space cannot be secured near the ceiling. . Further, there is a possibility that the light shielding film may flutter or be twisted due to the airflow from the air conditioner or the like flowing near the truss, which may hinder opening and closing.

Accordingly, the present invention solves the above-mentioned problems of the prior art and provides a light-shielding film which can be opened and closed in a space between a three-dimensional truss structure supporting a skylight glass and a sash. An object of the present invention is to provide a membrane opening / closing structure.

[0007]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a space truss structure and a roof panel whose periphery is supported by vertical and horizontal frames supported on lattice points of the space truss structure. A film take-up portion provided in a space between the first and second members and wound around the light-shielding film, and inserted into a top core material attached to the tip of the light-shielding film, and unfolds the top core material and the film body. And a tension wire accommodating portion for winding and accommodating the tension wire in which the traveling direction is deflected inside the tension wire is drawn out in the space position.

At this time, the tension wire accommodating portion is engaged with a rotatable drum having a spiral groove formed on the peripheral surface around which the tension wire is wound, and a part of the spiral groove of the drum is engaged, so that the rotation operation is suppressed. A lateral moving member accommodated in a state, the pulling wire is deflected in a traveling direction by the lateral moving member and guided into the spiral groove, and the drum is rotated to move the lateral moving member to the drum. Along the longitudinal movement while being engaged, the tension wire is wound into the spiral groove, and when a pulling force is applied to the tension wire, the lateral movement of the transverse movement member in the opposite direction causes the tension wire to move in the opposite direction. It is preferable that the tension wire is unwound from the spiral groove.

[0009] Further, it is preferable that the tension wire is stretched along a predetermined path by a single wire via a traveling direction deflecting member.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the light-shielding film opening / closing structure according to the present invention will be described below with reference to the accompanying drawings.
FIG. 1 shows a sash S for skylight comprising a light-shielding film opening / closing structure 10 of the present invention and a glass panel G supported by a vertical frame 30 and a horizontal frame 40 incorporating the light-shielding film opening / closing structure 10.
FIG. 3 is a schematic cross-sectional perspective view showing a truss structure 1 for supporting the skylight sash S. In this figure, the glass panel G and a part of the horizontal frame 40 are cut away so that the entire configuration of the light shielding film opening / closing structure 10 becomes clear.

FIG. 1 schematically shows a state in which the light shielding film 13 is drawn out and covers about 3/4 of the area of the glass panel G. This schematic perspective view shows a vertical frame 30 and a vertical frame 30.
The light-shielding film 13 is guided and developed by the leading guide running groove 36 (the configuration will be described later), a horizontal frame 40A provided between adjacent vertical frames 30, and a part of two intermediate horizontal frames 40B. Are shown. The film winding box 11 having a length substantially equal to the length between the adjacent vertical frames 30 is fixed to the horizontal frame 40A. The film take-up box 11 has a built-in light-shielding film take-up drum 12 that is rotated by a motor, and can house the wound light-shielding film 13 therein. On the other hand, a winding wire storage box 19 is fixed to a horizontal frame (not shown) at the other end of the skylight. In the winding wire storage box 19, a wire winding pipe 18 that winds a wire 17 as a pulling wire that is inserted and passed over the leading core material 15 at the tip of the light shielding film 13 is housed. The wire 17 is wound around a grooved drum 20 fitted on a wire winding pipe 18. In the three-dimensional truss structure 1 located below the skylight sash S and the light-shielding film opening / closing structure, a glove 3 as a lattice point and a part of a pipe 4 as a chord are indicated by two-dot chain lines. .

Hereinafter, the configuration of the light shielding film opening / closing structure 10 will be described. As shown in FIG. 2, the light shielding film opening / closing structure 10
It is symmetrical with respect to the center line C. The light-shielding film 13 is made of a conventional woven fabric of vinyl chloride resin or polyester resin, and one end is fixed to the film winding drum 12 so that the light-shielding film 13 can be accommodated in the film accommodating box 11 in a state where the entire length is wound. The other end of the light shielding film 13 is fixed to the leading core 15. As shown in FIG. 3, the leading core member 15 is formed of a hollow extruded aluminum material having a substantially flat elliptical cross section, and a wire insertion hole is formed at a substantially central position of the cross section in the longitudinal direction. Lead guides 16 are attached to both ends of the lead core 15. As shown in an enlarged manner in FIG. 4, the leading guide 16 has the same cross-sectional shape as the leading core 15 and has a flange 34 protruding from the side surface of the vertical frame 30.
And is accommodated in a leading guide running groove 36 defined by the base plate 32 and the bottom plate 32. Aramid resin (such as MC nylon as a product name) having excellent wear resistance is used for the top guide 16.

One wire 17 is used. One end of the wire 17 is fixed to one grooving drum 20 fitted to both ends of the wire winding pipe 18, and the other end is one leading guide running groove 36, leading core 1
5, via the other leading guide running groove 36, it is fixed to the other wire winding pipe 18.
That is, the wire 17 extending from the wire insertion hole of the leading core material 15 is deflected by the leading guide 16 at substantially a right angle at a predetermined curvature, is disposed in the groove along the leading guide running groove 36, and is further wound around the winding wire storage box. In 19, it is again deflected by a deflection sheave 22 at a substantially right angle, and is guided into a traverser 23 as a laterally moving member which is partially screwed into a spiral groove 21 on the surface of a grooving drum 20. The wire 17 further deflected at a substantially right angle by the traverser 23 is wound around the spiral groove 21. This reduces the time and effort for adjusting the length when the wire 17 is attached.

On the other hand, the film take-up drum 12 in the film accommodating box 11 is rotatably supported by a bearing attached to the end surface of the box. A cylindrical tube motor (not shown) is built in the film winding drum 12. During operation, the tube motor rotates in a direction indicated by an arrow A shown in FIG. 3, that is, in a film winding direction, at a predetermined rotation speed by a built-in speed reduction mechanism. Conversely, the tube motor in the wire take-up pipe 18 rotates in the direction of arrow B, and can take up the wire 17 in the spiral groove 21 of the groove-cut drum 20. When rotation in a direction opposite to the rotational operation direction is applied to any of the tube motors, a predetermined rotation resistance is applied by a built-in brake mechanism. The light-shielding film 13 and the wire 17 drawn out by the rotation resistance
Is given a predetermined tension.

In this embodiment, the opening / closing operation of the light-shielding film opening / closing structure 10, that is, the operation of rotating the motor of the film winding drum 12 and the wire winding pipe 18, is performed through the control circuit 28 to a position near the floor of the space. The switch 29 can be operated remotely. A power supply line and a control electric wire (not shown) for driving the motor are accommodated in the vertical frame 30. Thereby, it is possible to prevent the electric wire from being exposed to the outside of the vertical frame 30,
A design effect can be obtained.

FIGS. 5A and 5B are a front view and a side view showing the shape of the traverser 23 described above. On one surface of the traverser 23, a threaded portion 24 is formed in a range that forms an angle of approximately 45 ° with which the spiral groove 21 on the surface of the grooved drum 20 (FIG. 6) can be screwed. The threaded portion 24 has a trapezoidal square thread cross section, and the wire 17
Lead groove 24a is formed to guide the lead. The lead groove 24a has a predetermined curvature and is bent substantially at a right angle.
It faces the end face 23a. Lead groove 2
A holding plate 25 is provided for holding the wire in the groove after the wire 17 is placed in the wire 4a. This holding plate 2
5 can be fixed to the traverser 23 body by bolts 26.

FIG. 6 shows a part of the grooving drum 20. Pitch of the spiral groove 21 of the grooved drum 20,
The lead is set equal to the lead groove 24a of the traverser 23. A predetermined curvature is provided at the bottom of the groove so that the wire 17 can be easily accommodated in the groove. FIG. 2 exemplifies a wire 17 wound around the spiral groove 21. The screw direction of the traverser 23 and the grooved drum 20 is symmetrical with respect to the center line C so that the wire 17 is wound around the grooved drum 20 by one-way rotation of the wire winding pipe 18 as shown in FIG. One is set to the right screw and the other is set to the left screw.

FIG. 7 shows an end face of the grooved drum 20 fitted to the wire winding pipe 18. As shown in this end view, a part of the spiral groove 21 of the grooved drum 20 and the threaded portion 24 of the traverser 23 are screwed. At this time, the rear surface of the traverser 23 conforms to the inner shape of the winding wire storage box 19, and the step formed on a part of the rear surface causes the traverser 23 to rotate together with the rotation of the grooved drum 20, that is, the wire winding pipe 18. To prevent Accordingly, the traverser 23 moves laterally in the “winding” direction by rotating the wire winding pipe 18 in the direction of arrow B. When the light-shielding film 13 is wound, the wire 17 moves the traverser 23 in the “release” direction by moving the leading core material 15 in the arrow closing direction. Thereby, the wire is released from the grooving drum 20. At this time, a rotation resistance due to a brake is generated in the tube motor built in the wire winding pipe 18, and a constant tension is applied so that the wire 17 is not loosened.

FIG. 8 shows a state in which 40B of the leading core 15 is accommodated in the leading guide running groove 36 at the lower position of the vertical frame 30. At this time, the bearing portion 51 of the intermediate roller 50 is provided on the web 32 of the upper fastener 5A. The intermediate roller 50 is rotatably supported by the bearing 51 and is provided between the adjacent vertical frames 30.
The leading core material 15 is pulled out along the leading guide running groove 36 of the vertical frame 30 by winding the wire 17, so that the light shielding film 13 is pulled out so as to pass over the intermediate roller 50. When the drawn-out light-shielding film 13 is loosened by its own weight and hangs down, as shown in FIG. 7, the light-shielding film 13 is supported so as to ride on the intermediate roller 50, so that the light-shielding film 13 is prevented from sagging.

FIG. 9 is a partial end view of the fastener 5 supporting the intermediate roller 50 shown in FIG. 8, as viewed from the side.
The fastener 5 is fixed on a globe 3 which is a lattice point of a space truss. This fastener 5 is a web 12 of an upper fastener 5A whose height can be adjusted by meshing the tooth surfaces.
The mounting flange 5 of the intermediate roller 50 described above
2 is shown. The film body of the light shielding film 13 spread on the intermediate roller 50 is supported on the intermediate roller 50 so that the light shielding film 13 is prevented from hanging down at the intermediate roller 50 portion.

The above-described light-shielding film opening / closing structure can be used not only for a roof having a horizontal or predetermined slope using a sash S for skylight, but also for a curtain wall constituting an outer wall surface.

[Brief description of the drawings]

FIG. 1 is an overall configuration perspective view showing an embodiment of a light-shielding film opening / closing structure according to the present invention.

FIG. 2 is a plan view showing a light shielding film opening / closing structure shown in FIG. 1;

FIG. 3 is a side view of the light blocking film opening / closing structure shown in FIG. 2 as viewed from the side;

FIG. 4 is a partially enlarged perspective view showing a configuration of a leading guide portion.

FIG. 5 is a side view and a front view of a traverser housed in a winding wire housing box having a light shielding film opening / closing structure.

FIG. 6 is a partial front view of a wire winding pipe housed in a winding wire housing box having a light-shielding film opening / closing structure.

FIG. 7 is a side view showing a meshing state between the traverser housed in the winding wire housing box and the wire winding pipe.

FIG. 8 is a partially enlarged view of a vertical frame supporting position when the mounting state of the intermediate roller is viewed from the side.

FIG. 9 is a partially enlarged view of a vertical frame supporting position in a cross-sectional view of a mounting state of an intermediate roller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Three-dimensional truss structure 3 Glove 10 Light shielding film opening / closing structure 11 Membrane storage box 17 Wire 19 Winding wire storage box 20 Grooving drum 23 Traverser 30 Vertical frame 40 Horizontal frame 50 Intermediate roller G Glass panel

Claims (3)

[Claims] 1. A space between a space truss structure and a roof panel whose periphery is supported by a vertical frame and a horizontal frame supported on lattice points of the space truss structure. A film winding portion, a tension wire inserted into a leading core material attached to the tip of the light-shielding film, and pulling out the leading core material and the film body in a developing direction; and a tension wire whose traveling direction is deflected. A light-shielding film opening / closing structure, wherein a tension wire housing portion for winding and housing a wire inside is disposed at the space position. 2. The pulling wire accommodating portion is engaged with a rotatable drum having a spiral groove formed on the peripheral surface around which the pulling wire is wound, and a part of the spiral groove of the drum is meshed with the pulling wire accommodating portion. A lateral moving member accommodated in a state, the pulling wire is deflected in a traveling direction by the lateral moving member and guided into the spiral groove, and the drum is rotated to move the lateral moving member to the drum. Along the longitudinal movement while being engaged, the tension wire is wound into the spiral groove, and when a pulling force is applied to the tension wire, the lateral movement of the transverse movement member in the opposite direction causes the tension wire to move in the opposite direction. 2. The light-shielding film opening / closing structure according to claim 1, wherein the tension wire is unwound from the spiral groove. 3. The light-shielding film opening / closing structure according to claim 1, wherein the tension wire is stretched over a predetermined path by a single wire via a traveling direction deflecting member.