JPS6133197Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a shading device, and more specifically, to a shading device for a horizontal blind.

In general, horizontal manual blinds have a rotating shaft with a polygonal cross section mounted horizontally in the head box, two or more drums for hanging slats are fitted to this rotating shaft, and a ladder-like structure is attached to the hanging drums. At the same time, a slat tilting drum is fitted and fixed to the other end of the rotating shaft, and a tilting cord for tilting the slat from side to side is wound and held around this drum. A configuration has been adopted.

However, in order to increase productivity, there is a gap between the top slat and the head box that is required for the tilting of the slats, and a cord that is wound directly around the drum to hang the slats and a cord that is wound directly around the drum in order to increase productivity. Since the lowering cord and the lowering cord are prepared separately, and the two cords are connected by a connecting metal fitting or the like during assembly, the width is increased by the distance required for the metal fitting and its attachment. Therefore, even if you try to use blinds instead of blackout curtains in audiovisual classrooms, there will be a gap between the top slat and the head box due to the reasons mentioned above, and sufficient light blocking performance will not be obtained, making it easier to handle than blackout curtains. Although they were much better than curtains, they were not used upright due to light leakage.

This invention aims to eliminate the above-mentioned drawbacks by adding a simple light shielding device.
Its features include a plate-shaped light-shielding piece with a length equal to the slat length or headbox length and a width equal to the distance between the headbox and the top slat, and one side of the light-shielding piece with a light-shielding piece on one side. hanging pieces parallel to each other with an interval therebetween; a sealing piece extending from one side of the hanging piece in the direction of one side of the light-shielding piece, and integrally forming a sealing piece at a connecting part of the light-shielding piece and the hanging piece; Hold the hanging piece of the light shielding plate using a bracket having a letter-shaped locking part, and place the sealing piece against the side or bottom surface of the head box.
To provide a light shielding device in which a bracket can be attached to a head box mounting fitting. An embodiment of this invention shown in the drawings will be described in detail below.

As shown in FIGS. 1 to 3, the light-shielding plate 1 of this invention is made by molding a molded resin such as vinyl chloride with the same coloring agent as the blind. A plate-shaped light shielding piece 11 whose width is the distance between the lower surface 21 and the mounting position of the uppermost slat 31, and the light shielding piece 1
A hanging piece 12 is parallel to one side of the light shielding piece 11 with an interval that allows insertion of a bracket (to be described later), and a light shielding piece 1 is connected to one side of the hanging piece 12 from one side of the hanging piece 12.
A seal made of soft vinyl or the like, which extends in one side direction of the head box 2 and has a flat surface 15 formed at the connecting portion 14 between the light shielding piece 11 and the hanging piece 12, and whose side surface is in contact with the side surface 22 or the bottom surface of the head box 2. Piece 1
3 are integrally formed.

As shown in FIGS. 1 to 4, the light-shielding piece 1 constructed in this manner includes a substantially U-shaped mounting bracket 4 for attaching the head box 2 to a building above the window, and bent portions formed at both ends of the mounting bracket 4. A bifurcated mounting piece 51 and a portion extending from one end of this mounting piece 51 are shown to be able to be attached to the one bent end 42 with a screw 44 together with a strip-shaped head box support fitting 43 screwed to 41 and 42. Locking part 52 bent into a U shape
Connecting portion 1 with a plurality of brackets 5 having
The flat part of the seal piece 13 is attached to the lower surface 21 of the head box 2, and the side surface of the seal piece 13 is attached to the side surface 21 of the head box 2.
2 and are attached to the front side of the slats that hang down from the head box.

The light shielding device of this invention has the above-mentioned configuration, and as shown in FIGS. 4 and 5, a hanging cord 61 with a slat 3 attached thereto is wound around a drum in a head box. code 6
2 through the coupling fittings 63, and when the slat 3 is tilted from a horizontal state to a substantially vertical state as shown in FIG. Light leakage from the gap a generated between the head box 2 and the lower surface 21 of the head box 2 is blocked by the light shielding piece 11, so that the light does not leak directly into the room, and does not interfere with the raising and lowering of the slats.

In this case, if a light absorbing material is attached to the slat side surface of the light shielding piece 11 or if the surface is made blackish, the amount of light reflected and leaking from this surface can be further reduced.

As mentioned above, this invention consists of a plate-shaped light-shielding piece whose length is approximately equal to the slat length and whose width is at least the distance between the headbox and the uppermost slat;
A hanging piece is formed on one side of the light shielding piece and is parallel to one surface of the light shielding piece with an interval therebetween, and a sealing piece is integrally formed at a connecting part between the hanging piece and the light shielding piece, and a letter-shaped engagement is formed. The hanging piece of the light-shielding plate is locked with a bracket having a stop part, and the bracket can be attached to the headbox mounting bracket so that the sealing piece is in contact with the side or bottom surface of the headbox, making it possible to create a horizontal blind. To be able to block light leakage from a gap between a top slat and a head box, which cannot be blocked due to the structure of the head box, by a simple structure and means, and to do so without interfering with the vertical and tilting movements of the slat, and in addition to spoiling the appearance. It has the effect that there is no

[Brief explanation of the drawing]

The figures show one embodiment of this invention. Figure 1 is a perspective view of the main parts before the light shielding plate is attached to the headbox, and Figure 2 is a perspective view of the main parts with the light shielding plate attached to the headbox. Figure 3 is a side view of the installation location, Figure 4 is a side view showing the relationship between the slat and the light shielding plate in the daylight condition, and Figure 5 is A of Figure 4.
- A sectional view at the disconnection point; FIG. 6 is a sectional view at the disconnection position showing the relationship between the slat and the light shielding plate in the light shielding state. DESCRIPTION OF SYMBOLS 1... Light shielding plate, 11... Light blocking piece, 12... Hanging piece, 13... Seal piece, 14... Connection part, 2...
...head box, 3... slat, 4... mounting bracket, 5... bracket, 61, 62... cord, 63... coupling metal fitting.

Claims (1)

[Scope of utility model registration request] a plate-shaped light-shielding piece having a length substantially equal to the slat length and a width at least equal to the distance between the head box and the uppermost slat; A sealing piece is integrally formed on a hanging piece and a connecting part between the hanging piece and the light shielding piece, and the hanging piece of the light shielding piece is locked with a bracket having a U-shaped locking part, 1. A light shielding device for a horizontal blind, characterized in that a bracket can be attached to a headbox mounting bracket so that a sealing piece is in contact with a side surface or a bottom surface of the headbox.