JPH069330U - Equipment for passage - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a lid that can easily and quickly open a branch wire drawing hole when it is necessary to introduce the branch wire into the room from the pit. [Structure] One or a plurality of annular thin-walled portions are provided at predetermined positions of a lid attached to a frame fixed to a pit lid, and branched by striking a portion in an area surrounded by the thin-walled portions. The wire lead-out hole is formed so as to open.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wire passing device for introducing a branch electric wire into a room from various cable electric wires in a wiring burying pit provided under the floor of a building.

[0002]

[Prior art]

 The inventor of the present invention has devised a wire passing device in which a frame is inserted and fixed in a bit lid provided on the floor of a building, and the lid is inserted and fixed in the frame. This device is known as Japanese Utility Model Publication No. 2-31871.

[0003]

[Problems to be solved by the device]

 The above Japanese Utility Model Publication No. 2-37181 has an advantage that the lid can be easily attached to and detached from the frame, and the insertion hole of the branch electric wire is preliminarily formed in the lid or is branched. Either method is adopted when the wire is pulled out. In the above, when a hole for drawing out the branch electric wire is previously formed in the lid, when the branch electric wire is not drawn out, dust or dirt may enter from the opening hole, which is not preferable for management. In the latter case, when a hole is to be bored during the work of drawing out a branch electric wire, it is necessary to prepare a tool such as a drill for making a hole at the time of drawing out the work, and the hole is troublesome. there were. In view of this, the present invention has been devised so that a hole for drawing out the branch electric wire can be provided extremely easily during the work for drawing out the branch electric wire.

[0004]

[Means for solving problems]

 In order to solve the above-mentioned problems, the wire passing device according to the present invention is provided with one or a plurality of annular thin-walled portions at predetermined positions of a lid fitted in the opening of the frame, and is surrounded by the thin-walled portions. It is formed so that the branch wire lead-out hole is opened by striking the inside of the area.

[0005]

[Action]

 When a hit is applied to an area surrounded by an annular thin portion provided at a predetermined position of a lid attached to the frame body, the lid portion in the area surrounded by the thin portion from the thin portion Is punched out to open the branch wire drawing hole.

[0006]

【Example】

 In FIG. 1 showing an embodiment of the present invention, 1 is a pit formed on the floor of a building, 2 is a cable wire laid in the pit 1, 3 is a pit lid, A synthetic resin frame 5 is slidably inserted into a U-shaped notch opening formed at the end of the cover plate 4 and fixed to the pit cover with a screw.

As shown in FIG. 5, the frame body 5 has a U-shaped opening 6, and a ridge 7 is horizontally provided on the inner side surface of the frame body 5 so as to project in the horizontal direction. On the outer side surface of the cover plate 4, a fitting groove 9 for fitting with the end edge 8 of the U-shaped cutout is provided in the end edge portion of the cover plate 4.

As shown in FIG. 5, the lid 10 made of synthetic resin that closes the opening 6 of the frame 5 has a groove 11 extending horizontally in the outer surface thereof, and the groove 11 of the lid 10 is formed. Is fitted to the ridge 7 of the frame body 5 and the lid body 10 is inserted into the opening 6 of the frame body 5, so that the surface of the lid body 10 becomes the surface of the frame body 5 as shown in FIG. It is configured to be flush with.

As shown in FIG. 2, the fitting portion between the frame body 5 and the lid body 10 is wide at the insertion port end side of the lid body 10 and slightly narrowed toward the insertion port end side. It is configured.

According to the first embodiment of the present invention, one substantially diamond-shaped annular thin-walled portion 12 is provided at a position substantially at the center of the lid body 10, and a portion within an area surrounded by the thin-walled portion 12 is provided. As shown in FIG. 4, when a blow is applied to, the part in the area surrounded by the thin portion is punched out to form the branch wire drawing hole 13.

In the first embodiment of the present invention, the number of the annular thin-walled portions 12 is one, but as in the second embodiment of FIG. 6, two circular annular thin-walled portions 12 may be provided. The annular shape and number of thin portions are not particularly limited.

Further, the attachment of the lid body to the frame body is not limited to the inserting means as described above, but may be screwed onto the ridge. Reference numeral 14 in the figure indicates a floor finishing material.

[0013]

[Effect of device]

 In the present invention, when it is necessary to branch the cable electric wire in the pit into the room and introduce it into the room, if a portion within the area surrounded by the thin portion is hit without the need for drilling, the thin portion will be cut. The portion in the area surrounded by the thin portion is cut and punched out, and the branch wire lead-out hole is opened easily and quickly. Therefore, the branch electric wire can be introduced into the room more quickly than the conventional product that requires drilling.

Further, since there is no hole in the lid until the branch electric wire needs to be introduced into the room, there is no risk of dust and dirt entering, which is preferable in terms of management.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment showing an implementation state of the present invention.

FIG. 2 is a plan view of an essential part of the present invention.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a cross-sectional view showing a state of a lid body in which a branch wire drawing hole is formed.

FIG. 5 is an exploded perspective view of a frame body and a lid body.

FIG. 6 is a plan view of an essential part of a second embodiment of the present invention.

7 is a cross-sectional view taken along the line BB of FIG.

[Explanation of symbols]

 1 Pit Lid 4 Lid Plate 5 Frame 6 Opening 7 Projection 9 Fitting Groove 10 Lid 11 Groove 12 Thin Wall 13 Branch Wire Extraction Hole

Claims (1)

[Scope of utility model registration request] 1. A ridge is provided on an inner side surface of a frame body having a U-shaped opening fixed to a pit lid, and a lid body supported by the ridge and fitted into the opening portion of the frame body. 1 in place
Or a plurality of annular thin-walled portions are provided, and the branch wire lead-out hole is formed by hitting a portion in an area surrounded by the thin-walled portions so that the branch wire outlet is opened. .