JPS6321787B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an outer frame that is attached to a gutter box provided under the floor for storing various types of piping, wiring, etc.

In recent years, offices, factories, etc. have become more mechanized and computers and other electronic equipment have come into use.

Additionally, various types of air conditioning equipment have been introduced to improve the working environment.

Therefore, in order to operate these devices, gutters are formed under the floor, and various piping, wiring, etc. are arranged within the gutters.

By the way, in order to construct this gutter under the floor,
As shown in Fig. 3, a recess for a side gutter is formed in the concrete D under the floor, and an outer frame A with a box B attached thereto is placed in the recess with a gap between the concrete D and box B. Complete the gutter by pouring mortar into the gap formed between the outer frame A
The inner frame C was fitted to cover the gutter opening.

When constructing these side gutters, there are cases where the outer frame is attached directly to the mortar without using box B, but this has the disadvantage that it is impossible to achieve a good-looking finish using mortar E alone. Therefore, it became necessary to cover the mortar E with a U-shaped box B made of steel plate to give it a nice appearance.

In addition, since most of the underfloor areas for wooden structures are openings, the openings had to be partitioned off with mortar B and gutters installed.

By the way, in order to attach Box B to the outer frame, conventionally, as shown in Fig.
The horizontal flange 12 of the outer frame A and the supporting flange 3 of the outer frame A were aligned and fixed with the mounting screws 7 from above the horizontal supporting rim 3 of the outer frame, but the inner frame C is fitted to the outer frame. At this time, the head of the mounting screw 7 collided with each other, causing the inside to rattle and possibly damaging the inner frame.

In order to solve this problem, there was a method of forming an outer frame and fixing it from the side with mounting screws 7 as shown in Fig. 1, but the method of fixing from the side was very difficult to implement.

Therefore, the present invention provides an inclined main edge that is inclined so as to expand outward from the bottom to the top,
A horizontal support protrusion is horizontally protruded inward from the lower part of the inclined main edge, and a plurality of gasket fitting grooves each having openings opening in vertically opposite directions are formed in the support protrusion; Further, a screw storage groove is provided on the bottom surface of the seal fitting groove, and a side groove with the inside of the inclined main edge as a vertical plane located below the opening surface of the seal fitting groove in which the opening opens downward. By providing an outer frame, screws can be secured from the top of the outer frame when attaching the box to the outer frame, making it easier to attach the box and preventing the screw heads from being exposed to the outer frame. This protects the inner frame, eliminates rattling of the inner frame, and allows the outer frame to be used as an outer frame even if it is reversed.

An embodiment of the present invention will be described below with reference to the drawings. First, in Figures 2 and 3, D is the concrete under the floor, a recess for the side gutter is formed in this concrete D, and an outer frame A with box B attached is placed in this recess at a distance from the recess. Then, mortar E is poured into the gap between the concrete D and box B to form a side gutter, and an inner frame C is fitted to this outer frame A to cover the opening of the side gutter.

Therefore, the structure of the outer frame A and the attachment structure between the outer frame A and the box B, which are the essential parts of this invention, will be explained. As shown in Figs. 4 and 5, the outer frame A is composed of an aluminum formwork with a substantially L-shaped cross section, and has an inclined main frame that expands outward from the bottom. The upper end of the inclined main edge 1 projects horizontally to the outside, and the projecting end hangs down a little to form an upper locking flange 2. By tilting this main edge, the inner lid F
Easy to open and close.

Further, a horizontal supporting ridge 3 is formed at the lower part of the inclined main edge 1 to project inward in the horizontal direction. Two gasket fitting grooves 4 are provided in parallel on this horizontal support flange 3.

The openings of the two gasket fitting grooves 4 into which the gaskets 5 are inserted are opened in vertically opposite directions, and screw storage grooves 6 are provided in the bottom surfaces of the two gasket fitting grooves 4, respectively. That is, the gasket fitting groove 4 is structured in two stages, upper and lower, with the gasket 5 being fitted in the upper layer, and the box B being attached to the lower layer using the mounting screws 7.

Therefore, the gasket 5 is fitted onto the screw housing groove in which the screw 7 that attaches the box B is fixed, and the inner frame C is placed on the gasket 5, so that the inner frame C is placed on the gasket 5. The frame and the head of the mounting screw 7 will not collide, and the inner frame C will not be damaged or rattled.

An opening surface 4 of a packing fitting groove 4a whose opening is open downward among the two packing fitting grooves 4.
The inner side of the inclined main edge located below a' is formed into a vertical surface 1a, the end of the vertical surface 1a projects horizontally outward, and the horizontal end is bent slightly upward to engage the lower part. A stop flange 8 is formed.

By arranging the upper end 8a of the lower locking flange and the lower end 2a of the upper locking flange so as to correspond to each other on a vertical plane, a triangular metal fitting groove 9 with a wide base is formed on the outside of the inclined main edge. is formed to facilitate insertion of the anchor fitting 10.

A gasket 5 fitted into the gasket fitting groove 4
is made of soft synthetic resin or rubber, has a substantially elongated flat plate shape, and has a convex portion 5a formed at the bottom, and is placed on the support ridge 3 by fitting the convex portion 5a into the packing fitting groove 4. The space between it and the inner frame is airtight. As a result, it is possible to block odor and cold air from entering from under the floor, to prevent water from leaking under the floor, and to prevent corrosion of piping, wiring, etc., and with the interposition of this gasket 5, it is possible to connect the inner frame C to the support projection. Since there is no direct contact with the edge 3, metallic sounds can be prevented.

Furthermore, when the gasket 5 is fitted into the gasket fitting groove 4, the screw storage groove 6 provided on the bottom of the gasket fitting groove 4 is hidden by the gasket 5, which gives a good appearance and prevents dirt from filling up. 5, the inner frame C fits well.

The box B, which is attached to the outer frame A by the mounting screws 7, is made of metal and is approximately U-shaped.The upper end of the side plate 11 is bent horizontally inward to form a horizontal flange 12, and this horizontal Screw holes 13 are provided at required locations on the flange 12 to be screwed into the mounting screws 7.

To attach this box B to the outer frame A, first place the end of the horizontal flange 12 of the box B against the vertical surface 1a of the inclined main edge of the outer frame, and then attach the horizontal flange 12 with the mounting screws 7. Fix the supporting edge 3 of the outer frame, and then insert the gasket 5 into the gasket fitting groove 4.
is fitted to cover the mounting screw 7, and the inner frame C is placed on top of it.

FIG. 6 shows the outer frame A having the above structure installed on a wooden floor. The supporting flange 3 is fixed to the wooden frame 15 with screws 14 instead of using anchor fittings 10 or the like to install the outer frame A. It was constructed.

As explained above, in the present invention, the side grooves are formed by simply aligning the support flange of the outer frame and the horizontal flange of the box and screwing them together from the top surface.
Easy to construct.

In addition, we formed a two-stage groove on the support ridge, a gasket fitting groove and a screw storage part, and covered the screws in the screw storage groove with the gasket so that the inner frame could fit, so the inner frame could be directly connected to the screw head. There is no contact. As a result, the inner frame will not be damaged or rattled. At the same time, the screw storage groove is hidden by the gasket, so it looks good, there is no risk of it getting filled with dirt, etc., and the gasket allows the inner frame to fit better.

Furthermore, since the inside of the inclined main edge located below the opening surface of the packing fitting groove that opens downward is a vertical plane, when installing the box, the end of the horizontal flange of the box is aligned with this vertical plane. You can position it by applying it, and at the same time when you use it inverted,
It is very convenient because it can use a cover plate made of steel plate or the like with the vertical front as the side wall, and can be used with various flooring materials.

In addition, we have provided a plurality of seal fitting grooves with openings opening in opposite directions up and down on the support protrusion, so that when the seal is turned over, the seal fitting grooves with openings facing downward will be removed. Since the box opens upward and the box can be attached from above the opening with mounting screws, it is convenient because it can be used as an outer frame even if it is reversed.

Further, since the slanted main edge is slanted so as to expand outward from the bottom to the top, there are advantages such as ease of opening and closing of the lid plate.

[Brief explanation of the drawing]

Figure 1 shows the conventional method of attaching the outer frame and box.
Figure 2 is a plan view of the gutter closed with a cover plate.
Figure 3 is a sectional view of Figure 2, Figure 4 is the outer frame,
Fig. 5 is a perspective view of the box and packing. Figure 5 shows how the outer frame, box, and packing are installed. Fig. 6 is an example of installation on a wooden floor. A...Outer frame, B...Box, C...Inner frame, 1
... Slanted main edge, 3 ... Supporting edge, 4 ... Packing fitting groove, 5 ... Packing, 6 ... Screw storage groove,
7...Mounting screw.

Claims (1)

[Claims] 1. An inclined main edge formed to be inclined to expand outward from the bottom upwards, and a horizontal support ridge formed to protrude horizontally inward from the lower part of the inclined main edge. , a plurality of packing fitting grooves formed in the supporting protrusion with openings opening in vertically opposite directions, a screw storage groove provided on the bottom surface of the packing fitting groove, and a screw storage groove opening downwardly. An outer frame for a side gutter, wherein the inner side of the inclined main edge, which is located below the opening surface of the gasket fitting groove, is a vertical surface.