JP4140335B2 - Fastener for hollow part - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fastener capable of firmly fastening an attachment device such as a handrail member with a screw in a place where a hand cannot be entered inside, such as a hollow wall portion on which a plasterboard or the like is stuck.
[0002]
[Prior art]
The conventional means of attaching handrails and other attachments with screws to places where the inside of the wall is not accessible, such as a hollow wall, inserts after adapting holes in the wall, and then attaches attachments such as handrails to the screws. Insert a metal or resin board anchor that opens the leg on the back side of the hollow surface of the wall surface, or insert two holes on the back side of the wall surface hollow portion with an insertion hole. What is fixed to a cross character (Japanese Patent Laid-Open No. 11-310964) is known.
[0003]
[Problems to be solved by the invention]
By the way, the above-mentioned conventional metal or resin board anchors or fasteners that have an insertion hole in the wall surface and two plate-like objects on the back side of the hollow surface of the wall surface to be fixed in a cross shape are in any case. Since the position to be fixed using screws and bolts is limited to a specific place, the degree of freedom is lost, and there is a problem that the operation is difficult or limited to specific equipment.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to provide a fastener that can be used for attaching various equipments, using a general-purpose product as a screw used for fastening a screw, and having a degree of freedom in adjusting the fixing position of the screw.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention of claim 1 is a plate-like body having a U-shaped cross section, and has a short upper surface plate portion, long lower surface plate portion, upper surface plate portion, and lower surface plate. is composed from the connection portion connecting the parts, the upper surface at both side ends of the connecting portion, the two plate portions are protrusions shaped horn projecting toward the extending direction of the lower surface is provided, the length in the shorter top plate portion has a cut groove which is open towards the end of the direction, also has an elongated long hole in the longitudinal direction of the long lower face plate portion becomes a parallel positional relationship with the elongated long hole and the cut groove, and wherein elongated hole is a on an open extension of the cut groove, and a fastener, characterized in that it comprises a recess that is recessed toward the outer direction to induce the mounting screws to the elongated hole periphery.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
As shown in FIG. 1, the fastener 1 has a plate-like body and has a U-shaped cross section. The fastener 1 has a short upper plate 2, a long lower plate 3, an upper plate 2, and a lower plate 3. The upper surface plate portion 2 has a cut groove 5 opened toward the end in the length direction, and the lower surface plate portion 3 has an elongated slot 6 in the length direction. And it is formed in the peripheral part of the long hole 6 by the hollow part 7 depressed toward the outer direction.
[0011]
Further, it is formed at both side ends of the connecting portion 4 that connects the upper surface plate portion 2 and the lower surface plate portion 3 with a protrusion 8 in the shape of a protrusion protruding in the direction in which the two plate portions on the upper surface and the lower surface extend. .
[0012]
The cut groove 5 opened toward the end of the upper surface plate 2 in the length direction and the elongated hole 6 elongated in the length direction of the lower surface plate 3 are in a parallel positional relationship.
[0013]
An elongated hole 6 elongated in the length direction of the lower surface plate portion 3 is provided longer toward the end portion than the cut groove 5 opened toward the end portion in the length direction of the upper surface plate portion 2.
[0014]
In order to attach an attachment device 10 such as a handrail member to a hollow wall portion that cannot be reached inside, for example, a gypsum board wall 9, etc., as shown in FIG. The opening hole 11 having such a size as to pass through is drilled by means such as a drill.
[0015]
Next, as shown in FIG. 2 (b), the lower surface plate portion 3 of the fastener 1 is inserted into the opening hole 11, and the gypsum board wall 9 is sandwiched between the upper surface plate portion 2 and the lower surface plate portion 3, and the protrusions in the shape of one piece 8 is pressed against the side wall 12 of the opening hole of the gypsum board wall 9 and the fastener 1 is fixed to the opening hole 11 of the gypsum board wall 9.
[0016]
Further, as shown in FIG. 2 (C), an attachment device 10 such as a handrail member is applied from the upper part of the upper surface plate portion 2, and a screw 13 is screwed from the opened cut groove 5.
[0017]
The tip of the screw penetrates the gypsum board wall 9, is screwed into an elongated slot 6 parallel to the open cut groove 5, and is tightened with a screw 13 to fix the lower surface plate 3 to the gypsum board wall 9. Attract to the back side and finish the fastening work.
[0018]
In performing the above-described fastening operation, even if the screwing operation cannot be performed in the cut portion of the cut groove 5, the bottom plate portion 3 is elongated in the length direction as long as it is on the open extension line of the cut groove 5. Since the hole 6 exists in a position parallel to the cut groove 5, a series of operations such as screwing, screwing, and tightening can be performed.
[0019]
Furthermore, even if the screwing direction of the screw is slightly changed from side to side in the direction orthogonal to the length direction of the fastener 1 during the series of operations, the tip of the screw is formed by the recessed portion 7 that is recessed outward from the long hole 6. Is guided to the long hole 6, and the screw tip is easily screwed into the long hole 6.
[0020]
The fastener of the present invention is configured as described above, and a clip-type nut having a U-shaped cross section disclosed in Japanese Utility Model Publication No. 7-40724 and a gypsum board wall disclosed in US Pat. No. 3,376,911. Although it is similar in appearance to the conventional drive-in type plate nut, it does not pay attention to obtaining the degree of freedom of the fixed position adjustment which is one of the objects of the present invention. Naturally, the configuration is also different.
[0021]
A construction example of a handrail bracket that uses the fastener 1 and is fixed at three positions will be further described as an example. The size of handrail brackets that are generally marketed varies and, of course, the screw holes used are not in a fixed position. Even if the fastener 1 cannot be screwed in the cut portion of the cut groove 5, an elongated slot 6 that is elongated in the length direction is formed in the bottom plate portion 3 as long as it is on the open extension line of the cut groove 5. Since it exists at a position parallel to 5, a series of operations such as screwing, screwing and tightening can be performed. Screws can be fastened and fixed without considering the handrail bracket diameter and screw hole position. Moreover, even if there are two screw holes and four screw holes, it can be used by sandwiching the same number in the opening hole 11.
[0022]
In addition, if the handrail bracket is screwed, the same type of fastener also rotates in the direction of screw rotation, which makes it difficult to fix the screw. However, the fastener 1 of the present invention sandwiches the wall from the inside and outside with two plates, In addition, since the ridge-shaped protrusion 8 is pressed against the side wall 12 of the opening hole of the gypsum board wall 9 and is fixed, there is no occurrence of co-rotation, and it is possible to perform a secure screw fastening operation.
[0023]
【The invention's effect】
As described above, even if the size of the mounting equipment such as the handrail bracket and the screw position are different, the fastener of the present invention has a high degree of freedom in the fixing position and can be used for a wide range of equipment.
[0024]
In addition, the hollow surface of the wall that cannot be reached on the inside is sandwiched between two plates and fixed with one of the projections 8, and the front side has an open notch groove 5 with a guide mechanism that helps the screw to enter, When screwing attachment screws such as handrails in places where hands cannot be inserted inside, the bottom plate to be inserted on the back side is provided with a screw insertion long hole 6 and the wall is sandwiched from inside and outside by screwing in from the front side. There is no occurrence of co-rotation in the lower surface plate portion provided with the screw insertion elongated holes, and there is no situation where the fastening is impossible.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a fastener according to the present invention. FIGS. 2A, 2B, and 2C are cross-sectional views showing a step of attaching a fastener to an attachment. FIG. FIG. 4 is a front view showing the surface of the hollow portion and attachment equipment in an attachment example. FIG. 5 is a drawing showing a fastener shown in Japanese Utility Model Publication No. 7-40724. FIG. Drawing showing fastener shown in No. 911 【Explanation of symbols】
1. Fastener 2. 2. Upper plate part Lower plate part 4. Connection part 5. Open cut groove 6. Elongated elongated hole 7. 7. Indentation part 8. One protrusion 9 Gypsum board wall 10. Mounting equipment 11. Open hole 12. 12. Side wall of opening hole screw

Claims (1)

The plate-shaped body has a U-shaped cross section, and is composed of a short upper surface plate portion, a long lower surface plate portion, a connection portion that connects the upper surface plate portion and the lower surface plate portion, at both ends of the connection portion. The upper and lower plates are provided with two protrusions protruding in the extending direction, the short upper plate has a cut groove opened toward the end in the length direction, and The long bottom plate has a long slot in the length direction, the cut groove and the long slot are parallel to each other, and the long hole is on the open extension line of the cut groove, and its length The fastener characterized by having the hollow part dented toward the outer direction which induces an attachment screw in a hole peripheral part.

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