JP2007189805A - Closing lid for wiring takeout port of floor panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a closing lid that does not cause the connecting part of a breakage guide groove to be exposed to the inside of a wiring takeout port that is formed into an almost recessed shape at a panel side, while being constituted of such a type that posteriorly removes a cut piece by breaking the connecting part of the breakage guide groove and formes a wire passage port thereat. <P>SOLUTION: In the closing lid 1 for the wiring takeout port S in which a notch exhibiting an almost recessed shape from a plane view is formed at a proper position at the external periphery of a floor panel P as the wiring takeout port S, and which is detachably placed at a supporting side Q formed at the internal peripheral edge of the notch and having a proper width in depth, the breakage guide groove 2 that is made communicate with the external periphery of the lid 1 is formed for forming the wire passage port 4 so that the connecting part 2a of the guide groove 2 and the lid 1 is overlapped on the supporting side Q. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a closing lid that can be detachably attached to a closing lid that is detachably attached to a notch provided as a wiring outlet on a floor panel that forms a free access floor so that a through hole can be formed. .

  Conventionally, when a large number of floor panels are laid on a ground floor such as a concrete floor, a double floor structure called a free access floor that forms a space for cable wiring etc. between the bottom surface of the floor panel and the top surface of the ground floor There is.

  On the free access floor using the rear panel as described above, cables such as power cables and signal cables for computer terminals and communication devices can be freely routed in the space below the floor. Since it is necessary to take out the wiring under the floor to the floor upper surface side in order to connect to the terminal device, communication device, etc. arranged on the upper surface side of the floor, even in the conventional floor panel, the wiring outlet is in various modes. Is formed.

  The form of the wiring outlet in the known floor panel is such that the panel has a substantially semi-circular shape, semi-elliptical shape, or rectangular shape when viewed from the plane at least at one location on the outer periphery of the floor panel. A notch with a generally concave shape recessed inward is formed as a wiring outlet, and a closing lid provided with a cut piece that can be broken to form a through hole later is placed in this notch through a guide groove. A structure to be mounted has been proposed, and some are put into practical use.

  For example, in Patent Documents 1 and 2, a breaking guide groove extending from the edge on the outer periphery of the closing lid to the inner side of the lid is formed, and the portion surrounded by this groove is used as a cut piece for later breaking and cutting. The technique which can open an opening of a wiring line by this is disclosed.

  However, the fracture guide groove formed in the closing lid of Patent Documents 1 and 2 has a concave notch (wiring) in which a connecting portion between the cut piece surrounded by the groove and the closing lid body is formed on the panel side. When the connecting part is broken to form a through hole, the burr at the broken part remains exposed inside the wiring outlet, and the exposed burr passes therethrough. There are problems such as damaging the sheath of the cable that goes in and out of the wire opening and damaging the operator's finger.

In view of such a point, the inventors of the present invention, like a line opening that is formed by rupturing later, by previously forming the opening of the closing lid by punching the lid with a press or the like. A closing lid that does not leave burrs has been proposed (see Patent Document 3), but the user wants to form the opening of the closing lid on a panel at a desired position among a number of installed panels. It turns out that there are many requests.
JP 2000-240263 A Japanese Patent No. 3384621 JP 2002-315158 A

  Therefore, in the present invention, it is a type of closing lid that breaks the connecting portion of the breaking guide groove of the closing lid later and removes the cut piece, and forms a through hole there, but is formed in a substantially concave shape on the panel side. It is an object of the present invention to provide a closing lid in which the connecting portion of the fracture guide groove is not exposed inside the wiring outlet (the portion through which the wiring is inserted, hereinafter the same).

  The structure of the closure cover of the present invention made for the purpose of solving the above problems is formed in a suitable position on the outer periphery of the floor panel, with a notch portion having a substantially concave shape when viewed from the plane as a wiring outlet, In the closing cover of the wiring outlet, which is detachably mounted on a support side having an appropriate depth width formed on the inner peripheral edge of the notch, a break that leads to the outer periphery of the lid to form a through hole The guide groove is provided such that a connecting portion between the guide groove and the lid is positioned so as to overlap the support side.

  In the present invention, a reinforcing concave groove portion along at least a part of the fracture guide groove may be provided at an intermediate portion on the outer periphery of the lid where the break guide groove for the through hole is not provided. Further, there is a relationship between the reinforcing concave groove portion and the outer periphery of the closing lid where the break guide groove for the through hole is not provided and corresponding to the edge of the support edge of the wiring outlet by the notch portion. If the stopper claw piece is cut and raised downward, it can be easily and reliably attached to and detached from the wiring outlet (notch portion) formed on the panel side of the closing lid of the present invention. In some cases, a hole reinforcing concave groove is provided in the vicinity of the hole from which the locking claw piece is cut and raised.

  In the present invention, a notch portion having a substantially concave shape when viewed from above is formed as a wiring outlet at an appropriate position on the outer periphery of the floor panel, and has an appropriate depth width formed at the inner peripheral edge of the notch portion. In the closing lid of the wiring outlet that is detachably mounted on the support side, a breakage guide groove leading to the outer periphery of the lid is formed as a connecting portion between the guide groove and the lid in order to form a wiring opening. Since it is provided so as to overlap with the support side to form a closing cover for the wiring outlet on the panel side, it occurs when the connecting portion of the break guide groove with the cover is cut to form a through hole The cutting burr overlaps on the support side on which the lid is placed, so that the burr is not exposed to the inside of the wiring outlet from the inner edge of the support side. The finger of the person doing the work is injured It is possible to prevent.

  Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state before an example of a closing lid of the present invention is attached to a notch portion (wiring outlet) formed in a floor panel, and FIG. 2 is a perspective view of the closing lid of FIG. FIG. 3 is a front view of the closing lid of FIG. 2, FIG. 4 is an enlarged cross-sectional view of the lid shown in FIG. 2, and FIG. 5 is a view of the lid B shown in FIG. -B arrow expanded sectional view, (a)-(f) of FIG. 6 is a top view which shows the example of a pattern of the ditch | groove part for reinforcement in this invention closing cover.

  1 to 5, reference numeral 1 denotes a metal closing lid formed by pressing a steel plate or the like to close a wiring outlet S to be described later, and has a substantially concave shape formed on the outer periphery of the floor panel P as appropriate. It is detachably attached to the wiring outlet S by the notch. Q is a support side having an appropriate depth width formed at the inner peripheral edge of the wiring outlet S by the notch, and the lid 1 is mounted on the wiring outlet S by the notch by being placed on the supporting side Q. The

2 is formed in the outer periphery 1a (corresponding to the inner side of the concave notch) of the closing lid 1 attached to the outlet S with a narrow, substantially U-shaped groove so as to communicate with the outer periphery 1a. In the breaking guide groove, the cut piece 3 surrounded by the groove 2 is broken at the connecting portion 2a and removed to form the through hole 4 (see FIG. 4). In this example, the guide groove 2 is formed at two locations on the left and right of the outer periphery 1a. Although two connecting portions 2a are set in one guide groove 2, the number of connecting portions 2a is not limited to this example.
Cables Cs (see FIG. 4) such as a power cable and a signal cable for a terminal device such as a computer and a communication device (see FIG. 4) break the connecting portion 2a with the lid side in the fracture guide groove 2 and remove the cut piece 3. It is made to pass through the through hole 4 having a substantially U shape formed in a plane. In the present invention, the two connecting portions 2a of the fracture guide groove 2 for forming the through hole 4 formed by removing the cut piece 3 are formed at a portion overlapping the support side Q as shown in FIG. Therefore, the burr 2b generated when the connecting portion 2a is broken always exists on the support side Q. Therefore, the burr 2b damages the covering of the cable Cs inserted through the wiring port 4. There is no risk of damaging the operator's finger.

  5 is along the outer periphery of the floor panel P in the middle part between the inner back end of the line opening 4 and the outer periphery 1b of the closing lid 1 on the side where the line opening 4 is not provided (see FIG. 2). ) Or a reinforcing groove provided at an intersecting angle (see FIG. 6), which is an elongated groove having a concave cross section as illustrated in FIG. The reinforcing groove portion 5 can effectively disperse the load applied to the substantially central portion of the closing lid 1 of the present invention depending on the cross-sectional shape thereof, so that the strength of the closing lid 1 can be improved.

  6 is between the above-described reinforcing concave groove portion 5 and the outer periphery 1b of the closing lid 1 (the side where the through hole 4 is not provided), and in a portion corresponding to the periphery of the support side Q of the wiring outlet S A claw piece for locking formed by cutting and raising a part of the lid 1 downward. When the locking claw piece 6 is cut and raised, a hole 6a is formed in the shape of the claw piece 6. The reinforcing recessed groove portion 5 illustrated in FIG. 2 is positioned at a position where the space between the hole 6a and the innermost portion of the through hole 4 is divided. For example, when a load is applied to the approximate center of the closing lid 1 Further, it is possible to effectively prevent a crack that is likely to occur between the hole 6a due to the cut and raised and the innermost part of the through hole 4.

  Reference numeral 7 denotes a reinforcing groove portion for preventing deformation provided in the vicinity of the hole 6a so as to be substantially orthogonal to the reinforcing groove portion 5. The cross-sectional shape is the same as that of the reinforcing groove portion 5. Therefore, the concave groove portion 7 mainly functions to prevent the hole 6a from being deformed by a load and distorting the claw 6.

  Reference numeral 8 denotes a reinforcing groove portion for preventing deformation provided in a direction substantially orthogonal to the reinforcing groove portion 5 on the side of the innermost portion of the wiring port 4 or in the vicinity thereof, and the cross-sectional shape thereof is the reinforcing groove. It is substantially the same as the groove part 5. The recessed groove portion 8 mainly prevents the innermost periphery of the through hole 42 from being deformed by a load. The deformation-preventing concave groove portion 8 and the reinforcing concave groove portion 5 bulge (see FIG. 5) in a substantially dome shape on the back surface side of the lid 1, so that as shown in FIG. When Cs is obliquely inserted into the innermost part of the through-hole 4, the cables are forcibly bent by the angulated edges of the innermost part of the through-hole 4 by the recessed groove 5 and the bulging part of the same 8. In addition to preventing the cable Cs from being caught, the cable Cs is also prevented from being damaged by the corners of the through hole 4.

  Reference numeral 9 denotes a vertical recess for a small amount of wiring formed vertically on the outer periphery 1b of the closing lid 1 located on the same side as the outer periphery of the floor panel P. In addition, since this recessed part 9 becomes circular hole shape between these recessed parts 7 when laying two floor panels P by which the same closing cover 1 was mounted | worn with the wiring outlet S facing each other, a certain amount of Even if it is the wiring of, it can be inserted.

  Reference numeral 10 denotes a notch formed on the left and right sides of the closing lid 1 for removing the closing lid 1. In the closing lid 1 of the present invention mounted on the floor panel P, the projection 6b formed at the lower end of the locking claw piece 6 is engaged with the support side Q of the wiring outlet S by the notch of the floor panel 1. Then, a bit of a flathead screwdriver is inserted into the notch 10 to lift the closing lid 1 and remove the lid 1 from the floor panel P.

  In the closing lid 1 of the present invention, the reinforcing groove portions 5, 7, and 8 are arranged in the groove groove pattern shown in FIGS. 6A to 6F in addition to the above-described example described with reference to FIGS. There is also. 6 (a) to 6 (f), reference numeral 51 denotes a groove corresponding to the groove 5 in the previous embodiment, 71 denotes a groove corresponding to the groove 7 in the previous embodiment, and 81 denotes the previous groove. It is a ditch | groove part corresponding to the ditch | groove part 8 in an Example. In the example of FIGS. 6A to 6F, each of the recessed groove portions 51, 71, 81 is formed as a recessed groove having a form of communication instead of being individually independent.

  The wiring outlet closing cover 1 of the present invention may be made of plastic in addition to metal, but metal is more advantageous in terms of cost. Further, the structure of the floor panel P to which the closing lid 1 of the present invention is applied is not limited to a specific structure. For example, either an internal hollow type panel or a type of panel in which a filler is filled inside may be used.

  The closing cover of the wiring outlet of the present invention is as described above, and in order to form a through hole in the closing cover, a breaking guide groove leading to the outer periphery of the cover is provided as a connecting portion between the guide groove and the cover. Is provided so as to overlap the support side on which the closing lid is placed, so that the cutting burr generated when the connecting portion of the fracture guide groove with the lid is cut to form a through hole is provided for the support. As a result, the burrs will not be exposed to the inside of the wiring outlet from the inner edge of the support side, so that the burrs will damage the wiring cover or damage the fingers of the person performing the wiring work. Can be prevented.

  Further, the closing lid of the present invention does not bend even if a large load is applied to the central portion of the lid, so that it does not bend, and is formed on the closing lid by this reinforcing groove. It is possible to prevent a crack from occurring in a portion sandwiched between the through hole and the cut and raised hole of the locking claw piece. Furthermore, since a groove for preventing deformation is provided in the vicinity of each of the through-holes and the cut-and-raised holes so as not to cause a notch effect due to these openings and cut-and-raised holes, cracks are formed in the peripheral edges of these And the occurrence of defects can be effectively prevented.

  Furthermore, since the lid of the present invention has a simple structure, it can be easily manufactured by pressing a single plate-like metal material or molding a plastic material. In addition, the cost can be reduced compared to the conventional plastic molding lid.

The perspective view which shows the state before mounting | wearing the notch part (wiring exit) formed in the floor panel with an example of the closing cover of this invention. The top view which shows the state which mounted | wore the notch part of the floor panel with the closing lid | cover of FIG. FIG. 3 is a front view of the closing lid of FIG. 2. The AA arrow expanded sectional view of the lid | cover shown in FIG. The BB arrow expanded sectional view of the lid | cover shown in FIG. (a)-(f) is a top view which shows the example of a pattern of the ditch | groove part for reinforcement in the closure lid of this invention.

Explanation of symbols

P Floor panel S Wiring entry (notch)
Support side of Q closing cover
Cs Cables 1 Closing cover for wiring outlet S 2 Breaking guide groove
2a Connecting part 3 Cut piece 4 Connection port 5 Reinforcing groove part 6 Locking claw piece 7, 8 Reinforcing groove part 9 Vertical recessed part
10 Notch

Claims (4)

  A notch having a substantially concave shape when viewed from above is formed as a wiring outlet at an appropriate position on the outer periphery of the floor panel, and is attached to and detached from a support side having an appropriate depth width formed at the inner periphery of the notch. In the closing lid of the wiring outlet, which is placed freely, a breakage guide groove that leads to the outer periphery of the lid is formed in order to form a through hole, and a connecting portion between the guide groove and the lid is formed on the support side. A closing cover for a wiring outlet of a floor panel, characterized in that it is positioned so as to overlap.   2. A closing cover for a wiring outlet according to claim 1, wherein a reinforcing concave groove portion along at least a part of the breaking guide groove is provided at an intermediate portion on the outer periphery of the lid where the breaking guide groove for the through hole is not provided. .   A claw piece for locking at a portion corresponding to the edge of the support side of the wiring outlet by the notch portion between the reinforcing groove and the outer periphery of the closing lid where the break guide groove for the through hole is not provided. 3. The closing cover for the wiring outlet according to claim 1 or 2, wherein the wiring outlet is formed by cutting downward. The closing cover for a wiring outlet according to any one of claims 1 to 3, wherein a hole reinforcing concave groove is provided in the vicinity of the hole in which the locking claw piece is cut and raised.

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