JPH0422703Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to the structure of a shutter case, and particularly to the assembly structure of a detachable case plate.

(Prior Art) First, the assembly structure of a case plate in a conventional shutter case will be described with reference to FIGS. 3 to 6.

The shutter case consists of left and right symmetrical end brackets 1, 1, and three corner beams 2, 3, 4 installed horizontally and across between the left and right end brackets 1.
and a lintel beam 5 extending inwardly facing the corner beam 4 are assembled as a skeleton, and a slat 6 is attached to the inner surface of each end bracket 1.
Bearings 7 are fixedly installed to hold both ends of the fixed winding shaft, and the upper end of a guide rail 8 is held between the corner beam 4 and the lintel beam 5.

By the way, the case plate 9 that covers the front side of the shutter case (the front side of the drawing in FIG. 3 is defined as the front) and the front half of the bottom side is composed of a vertical front plate 9a, a middle plate 9b forming an overhanging slope, and a horizontal bottom plate. 9c, a collar 9d projecting forward is formed at the upper end of the front plate 9a, and a collar 9e also rises from the rear end of the bottom plate 9c.

In the state shown in FIG. 6 in which the case plate 9 is assembled to the shutter case, the upper end of the front plate 9a is fastened to the front surface of the corner beam 2 by screws 10 at a plurality of places, and the bottom plate 9c The rear end portion is fastened to the bottom surface of the lintel beam 5 by screws 11 at a plurality of locations.

(Problem to be solved by the invention) However, according to such a conventional assembly structure of the case plate 9, there are many tapping points for the screws 10 and 11, so it takes time and effort to drill holes and tighten the screws. When tapping, the upper and lower ends of the case plate 9 must be held down by hand to the corner beams 2 and lintel beams 5, making assembly difficult. However, there was a problem in that it was difficult to attach the case plate 9.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a structure of a shutter case in which case plates can be easily and reliably assembled and can be assembled in a short time.

(Means for Solving the Problem) In order to achieve the object, in the configuration of the present invention, the shutter case is provided with a case plate 13 that covers the front surface and the first half of the bottom surface of the shutter case, which is detachably attached to the shutter case body. In this structure, a lintel beam 12 made of a beam material is provided along the front edge of the shutter curtain entrance, which is formed in the depths of the bottom of the shutter case body, extending almost all the way in the width direction. an inverted U-shaped engaged part 1 whose part is in the direction of the shutter curtain entrance/exit;
2a is integrally formed, and an inverted U-shaped engaging portion 13d whose opening is in the opposite direction to the shutter curtain entrance/exit is integrally formed on the rear edge of the case plate 13. The mating portion 13d and the engaged portion 1
2a are inserted and engaged with each other, and the upper edge of the case plate 13 is overlapped with the front surface of the corner beam 2 formed at the upper end of the front surface of the shutter case body so as to pass through the corner beam 2 almost completely in the width direction, and is secured with screws 10. It is characterized by

(Function) Due to this structure, when assembling the case plate, first insert the engaging part of the bottom plate of the case plate into the engaged part of the lintel beam, temporarily fix it to the lintel beam, and then While swinging the upper end of the case plate, push it up and press it against the corner beam, and in this state, the case plate can be fastened to the corner beam.

(Example) Hereinafter, the configuration of the present invention will be specifically described based on an example shown in FIGS. 1 and 2.

In the structure of the embodiment, the lintel beam 12 of the shutter case is formed into an angular S-shape in cross section, that is, the lower end of the lintel beam 12 bonded to the lower flange 1a of the end bracket 1 has a cross section of It is formed into a bag-like folded step 12a.

On the other hand, the front plate 13a, the middle plate 13b and the bottom plate 13
In the case plate 13 formed by c, the rear end of the bottom plate 13c is folded inward and a hooked edge is formed to form an engaging portion 13d. , an engaged portion 12 consisting of a folded step formed in a U-shape on the bottom surface of the lintel beam 12.
It is designed so that it can be inserted into a.

In the state shown in FIG. 1 in which the case plate 13 formed in this way is assembled to the shutter case, the engaging portion 13d at the rear end of the case plate 13 is connected to the lintel beam 1.
At the same time, the upper end of the front plate 13a of the case plate 13 is fastened and fixed to the corner beam 2 by screws 10 at a plurality of locations.

In the structure of the embodiment configured as described above, when attaching the case plate 13, as shown in FIG. Temporarily fix it to the lintel beam 12, and then push it up while swinging the upper end of the case plate 13 to attach the corner beam 2.
In this state, the case plate 13 can be fastened to the corner beam 2 with screws 10 at a plurality of locations.

In such assembly work, the case plate 13
The case plate 13 can be accurately held in the tightened position with a simple operation of temporarily fixing the case plate 13 and then pushing it up, and the number of tapping points has been reduced by half compared to the conventional method, making it easier to assemble. No special skill is required, and the work time is reduced to less than half of the conventional method.

In addition, in the conventional assembly structure, when the mounting hole of the guide rail 8 was viewed from below, the step of the flange 9e was visible and unsightly, but in the assembly structure of the embodiment, the smooth surface of the engaging portion 13d was It looks good and looks good.

In the configuration of the above-described embodiment, the rear end of the case plate 13 is held only by interlocking and locking, but in addition to this, it may be secured by tightening with screws.

(Effect of the invention) As described above, according to the structure of the shutter case according to the invention, the inverted U-shaped engagement provided on the rear edge of the case plate 13 that covers the front and front half of the bottom of the shutter case After inserting the portion 13d into the inverted U-shaped engaged portion 12a provided on the bottom surface of the lintel beam 12 on the shutter case main body side from below, the upper edge of the case plate 13 is inserted into the bottom surface of the lintel beam 12 on the shutter case main body side. By overlapping the front surface of the corner beam 2 and fixing the screw 10, the case plate 13
Since the case plate 13 is detachably assembled to the shutter case body side, the case plate 13 can be easily and reliably assembled, and the working time can be shortened.
It is possible to use a case plate with a hard structure such as an aluminum plate without the need to reduce or deform the case, and the work is safe because the case plate once shrunk during assembly will not bounce and cause injury. There are other effects.

In addition, in the present invention, the lower end engaging portion 13d of the case plate 13 is inserted into and engaged with the engaged portion 12a at the lower bottom of the groping beam 12 from below. Therefore, the space inside the shutter case is not narrowed and space efficiency is good. Furthermore, since the upper edge of the case plate 13 overlaps the front surface of the corner beam 2 and is fixed with screws 10, the screw fixing work can be done from the front of the shutter case, making the work easy. .

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the structure of a shutter case showing an embodiment of the present invention, Fig. 2 is an operational view of the lower half of Fig. 1, and Fig. 3 is a perspective view of the skeleton of the shutter case. 4 is a perspective view of a case plate of a conventional shutter case structure, FIG. 5 is a side sectional view of FIG. 4,
FIG. 6 is an assembled sectional view of the case plate of FIG. 5. 12... Lintel beam, 12a... Engaged part,
13... Case plate, 13c... Bottom plate, 13d...
Engagement part.

Claims (1)

[Scope of Claim for Utility Model Registration] In a structure of a shutter case in which a case plate 13 covering the front and front half of the bottom of the shutter case is removably attached to the shutter case main body, approximately The bottom surface of the lintel beam 12 made of beam material is provided along the front edge of the shutter curtain entrance, which is formed with an opening all the way through, and has an inverted U-shaped cover with the opening facing the shutter curtain entrance. Engagement part 1
2a is integrally formed, and on the rear edge of the case plate 13 is an inverted U-shaped engagement part 13d whose opening is in the direction opposite to the direction of the shutter curtain entrance/exit.
are integrally formed, the engaging portion 13d and the engaged portion 12a are inserted and engaged with each other, and the upper edge of the case plate 13 is formed to pass through the upper end of the front surface of the shutter case main body almost completely in the width direction. The structure of the shutter case is characterized in that the corner beam 2 is superimposed on the front surface of the corner beam 2 and fixed with screws 10.