JPH0554799U - Slat prevention device for shutter slats - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a lateral deviation prevention device for a slat that can always smoothly move up and down in a shutter having a slat whose hollow portion is filled with a heat insulating material without a guide member. [Structure] In the lateral displacement prevention device for the slat 2, rollers 9 are attached to the upper ends of a pair of left and right guide rails 3 with predetermined gaps from the left and right edges of the slat 2. Each roller 9 is rotatably supported by the bottom wall 13 of the guide rail 3 via a bracket 10.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a device for preventing lateral displacement of slats in a shutter.

In this specification, front, rear, left and right are based on the outer wall of the building, the front side is the front, the opposite side is the rear, and the left and right are the fronts.

[0003]

[Prior Art]

 Conventionally, the shutter (31) is provided with a slat (32) in which a plurality of slat pieces (32a) filled with a heat insulating material are connected to each other and a pair of left and right guide rails (33). A device shown in FIG. 7 is known as a lateral displacement prevention device for slats. This device for preventing lateral displacement of slats has guide members (34) for guiding the slats (32) along the guide rails (33) in a staggered pattern on the left and right edges of each slat piece (32a). The guide member (34) is fitted into the guide rail (33) while the flange (34a) of the guide member (34) covers the lower end of the edge of the adjacent upper slat piece (32a). By loosely contacting the bottom wall (35) of the slat, the lateral displacement of the slat (32) is prevented. The guide member (34) is fitted into the hollow portion of the slat piece (32a) and then fixed to the slat piece (32a) by filling the hollow portion with a heat insulating material.

FIG. 8 shows the shutter (36) when the width of the mounting portion is narrow. In this case, the slats obtained by cutting the left and right edges of the ready-made slats (32) along the chain line in FIG. (37) was used.

[0005]

[Problems to be solved by the device]

 In the above-mentioned conventional shutter (31), when cutting the left and right edges of the slat (32), the guide member (34) interferes with the cutting, so it is necessary to remove it, but for that purpose first It was necessary to remove the heat insulating material filled in the hollow part of each slat piece (32a), and there was a problem that the work was extremely troublesome.

Further, after cutting both edges of the slat (32), it is difficult to fit the guide member (34) into the heat insulating material of the cut slat piece (37a), so the guide member (34) Without it, the slat pieces (37a) are displaced laterally alternately, as shown in FIG. 8, and the displacement increases toward the bottom. The cause of this is unknown, but it seems that some force is exerted as the slats (37) are repeatedly moved up and down. When the deviation becomes large, the edges of the slat pieces (37a) directly contact the bottom walls (35) of the left and right guide rails (33), and the slats (37) cannot be smoothly moved up and down.

An object of the present invention is to provide a lateral displacement prevention device for a slat in a shutter that can smoothly raise and lower the slat without a guide member.

[0008]

[Means for Solving the Problems]

 A device for preventing lateral displacement of slats in a shutter according to the present invention is a device provided with a shutter having a pair of left and right guide rails, and a slats in which a plurality of slats having a heat insulating material filled in a hollow portion are connected to each other. In the device, rollers are attached to the upper end of each guide rail with a predetermined gap from the left and right edges of the slat.

[0009]

[Action]

 In the device for preventing lateral displacement of slats in the shutter according to the present invention, rollers are attached to the upper ends of a pair of left and right guide rails with predetermined gaps from the left and right edges of the slats. When the slat is moved up and down and the lateral displacement becomes large, the slat comes into contact with the roller and the lateral displacement is prevented by the roller.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

The shutter (1) in FIGS. 1 to 6 is a window shutter attached to the outer wall (A) of the building, and has a plurality of slat pieces (2a) having a hollow portion filled with a heat insulating material (25). The slats (2) that are connected vertically, the pair of left and right channel-shaped guide rails (3), the shutter case (4), the take-up shaft (5), and the take-up shaft (5) via bearings. And a bracket (7) supported on it.

The slat (2) side slip prevention device is one in which rollers (9) are attached to the upper end of each guide rail (3) with a predetermined gap from the left and right edges of the slat (2). Is. Each roller (9) is rotatably attached to the bracket (10), and each bracket (10) is fixed to the bottom wall (13) of each guide rail (3) by a rivet (26).

The guide rail (3) is made of an extruded aluminum material and has a front wall (11), a rear wall (12) and a bottom wall (13). The rear wall (12) and the bottom wall (13) are integrally formed, but the front wall (11) is a separate member from them, and the front wall (11) is the bottom wall (13). It is detachably attached to.

As shown in FIG. 3, the front wall (11) of the bottom wall (13) of the guide rail (3) has a U-shaped fitting recess (14) at its opening at the side edge. The bottom wall (13) of the front wall (11) is provided with a U-shaped fitting projection (15) on the side edge of the front wall (11) with its opening facing rearward. It is provided in a protruding shape. The fitting concave portion (14) and the fitting convex portion (15) both have some elasticity. There are hook-shaped engaging inner protrusions (16) on the inner surfaces of both side walls of the mating recess (14), and hook-shaped outer engaging protrusions (17) on the outer surfaces of both side walls of the mating protrusion (15). ) Are provided respectively.

Then, the fitting convex portion (15) of the front wall (11) is fitted into the fitting concave portion (14) of the bottom wall (13), and the engaging outer protruding portion (17) and the engaging inner protruding portion (17). The front wall (11) is attached to the bottom wall (13) by engaging the part (16). The engagement between the outer protrusion (17) and the inner protrusion (16) is such that the front wall (11) is disengaged by pulling it strongly toward you.

A vertical frame (6) is fixed to the outer wall (A) of the building by a screw (20), and the guide rail (3) is fixed to the outer wall (A) of the building through the vertical frame (6). Has been done. The rear wall (12) of the guide rail (3) is provided with a mounting wall (12a) fixed to the vertical frame (6) with screws (21).

In addition, the opening of the guide rail (3) has a groove with a substantially U-shaped cross section at the edges of the front wall (11) and the rear wall (12) of which the edges are bent inward. (18) is provided, and the mohair (19) is fitted into the groove (18) to close the gap between the slat (2) and the opening of the guide rail (3).

As shown in FIG. 5, each slat piece (2a) is provided at its upper portion with an engaging portion (22) having an inverted J-shaped cross section over the entire length, and at its lower portion, it is provided with an inverted portion. An inwardly projecting engagement portion (24) that engages with the J-shaped engagement portion (22) is provided over the entire length thereof with an engagement portion storage portion (23) having a substantially U-shaped cross section with an opening at the bottom. There is. Then, the inverted J-shaped engaging portion (22) of the lower slat piece (2a) is fitted into the engaging portion storage portion (23) of the upper slat piece (2a), and the required number of slat pieces (2a) are obtained. Connected to form slats (2).

When the shutter is repeatedly moved up and down in this shutter, as shown in FIG. 6, the slat pieces (2a) are displaced laterally alternately, and the displacement increases toward the bottom. When the lateral displacement of 2a) becomes large, the slat piece (2a) comes into contact with the roller (9) when moving up and down (see Fig. 4), and further lateral displacement is prevented by the roller (9).

[0020]

[Effect of the device]

 According to the slat lateral deviation prevention device of the present invention, the lateral deviation of the slat piece is blocked by the roller, and the laterally displaced slat piece does not hit the bottom wall of the guide rail. , The slat can always be raised and lowered smoothly.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a shutter in which a device for preventing lateral displacement of slats in the shutter according to the present invention is used.

FIG. 2 is a perspective view showing a lateral shift prevention device.

FIG. 3 is a horizontal sectional view of a shutter.

FIG. 4 is a vertical sectional view of a main part of a shutter.

FIG. 5 is a perspective view of a slat.

FIG. 6 is a partial vertical sectional view of a lateral deviation prevention device.

FIG. 7 is a partial front view in which a part of a conventional shutter is cut away.

FIG. 8 is a partially cutaway front view showing a case where the width is narrowed in the conventional shutter.

[Explanation of symbols]

 (1) Shutter (2) Slat (2a) Slat piece (3) Guide rail (5) Winding shaft (9) Roller (25) Insulation

Claims (1)

[Scope of utility model registration request] 1. A device for preventing lateral displacement of a slat provided in a shutter provided with a slat having a plurality of slat pieces connected to each other and having a hollow portion filled with a heat insulating material, and a pair of left and right guide rails. A device for preventing lateral deviation of slats in a shutter in which rollers are attached to the upper end of the slats with predetermined gaps from the left and right edges of the slats.