JPH026249Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a fastener for attaching objects to hollow structures such as walls and ceilings.

(Prior art) Conventional technologies for fasteners for attaching objects to hollow structures such as walls and ceilings include Japanese Patent Publication No. 43-24606 (first prior art), Publication of Utility Model No. 14861 (second prior art), Mikiakiaki
59-37414 (Third Prior Art), etc.

By the way, in the first prior art, a toggle member is loosely fitted to a fully threaded bolt by a pivot pin, and a spring is applied to move the toggle member in a fixed direction.
A screwdriver cutout for moving the fully threaded bolt in the axial direction is provided on the opposite side of the fully threaded bolt from the toggle member, and this part has a hexagonal head and a screw is attached inside. This is a toggle bolt into which a tubular sleeve member is screwed.

Further, the second prior art includes a plug main body having a locking head provided with a bolt insertion hole and a pair of parallel leg pieces at the lower end, and a plug body that is slidable between the leg pieces of the main body;
A non-return piece is provided with a rotatable pivot shaft, has a female threaded hole in the center, and has guide slopes for rotation at both ends of the head and tail, and is screwed onto the bolt, and has a locking head and a non-return piece. This plug consists of an adjustment pipe located between the two and an adjustment pipe that is compressed and deformed by tightening the bolt.

Furthermore, in the third prior art, when the tail portion serving as a rod-shaped locking portion is rotatably fitted onto the bolt and the pin connecting the two is horizontal, the tail portion makes the support point unbalanced in terms of weight. It is a locking tool that is made to hang under its own weight, and is equipped with a rotation regulating stopper mechanism that allows the bolt and tail to be in a straight line when rotated 180 degrees from this position on the same axis.

(Problems to be Solved by the Invention) The first prior art is a versatile toggle bolt that can be used for walls, ceilings, etc. in a suitable range of thicknesses. However, in order to use this toggle bolt in a place where a large force is applied, the entire toggle bolt must be made large, which makes it structurally unsuitable. In particular, since a pivot pin is used, there is a problem in that the protrusion of the toggle member that engages with the pivot pin determines the limit of the weight or external force that can be supported by the toggle bolt.

Also, the minimum thickness that can be tightened is determined by the length of the toggle member (shorter than the pivot pin support point) and the length of the tubular sleeve, so it can be used for a wide range of thick objects, but cannot be used for thin objects. There are also problems.

Next, the second prior art is a versatile plug that can be used depending on the wall thickness, ceiling thickness, etc., but this invention has concave guide grooves on the inner surface of both leg pieces of the plug main body. Since the plug is provided, the plug must be manufactured by molding, which poses problems such as the mold used for molding becomes complicated or the entire plug has to be taken out using a special method than the mold.

Furthermore, the check piece is provided with a pivot for rotating the check piece and a rotation stopper,
If the female screw at the center of the check piece is a commonly used size such as M4 or M6, the check piece will naturally be smaller due to its structure, and the pivot and stopper will also be smaller. A die-casting method using aluminum or zinc material is suitable for manufacturing products with such small protrusions.
However, if the non-ferrous metal material such as aluminum or zinc does not have enough strength for the internal thread of the check piece, then a steel or stainless steel material with higher mechanical properties must be selected.

However, die-casting of steel or stainless steel materials has not been put into practical use at present because there are problems that need to be solved.

On the other hand, there is also a method of making only the threaded parts of the check piece separately and casting them using a die-casting method using aluminum, zinc, etc., but this has problems such as the shape becomes large for strength, which is too large for the purpose of use, and the cost increases. .

There is also a method of attaching the protrusion of the check piece later by some method, but this method has the drawback of requiring a lot of processing time.

Furthermore, in the third prior art, since the bolt part and the tail part of the locking part are structurally fitted together rotatably using a pin, the structure of this fitting part is used in the same way as in the first prior art, so the strength of the bolt part is increased. There is a problem in that only very low values can be expected compared to .

(Means for solving the problem) In this invention, a nut is fixed at an offset position using a long and thin plate-like object, and a cut groove is provided on the longer side from the center of the nut to the edge, and a support hole is provided on the other side. It consists of a locking plate, a guide hanger made of a wire bent into a U-shape, and a seat plate with a through hole at the base end.
The guide hanger is inserted into a support hole of a locking plate and connected to the locking plate.

(Function) Hold the wire part of the guide hanger and the locking plate parallel to each other and insert it into the pilot hole of the object to be installed. When the locking plate reaches the opposite side of the object, the locking plate will move under its own weight. It is in a vertical state, and the nut of the locking plate corresponds to the extension line of the through hole of the seat plate of the guide hanger.

(Example) FIG. 1 is an overall sectional view, and FIGS. 2 and 3 are parts diagrams. The locking plate 1 is an elongated plate-like object, and is bent into a U-shaped cross section to form side plates 2, 2, and a nut 3 is fixed at a location shifted from the center position inside the side plates 2, 2. . Further, in the locking plate 1, a cut groove 4 is provided on the member having a longer distance from the center of the nut, extending from the end toward the nut mounting portion, and on the other hand, on the opposite side of the cut groove 4, a nut mounting portion is provided. A support hole 5 is provided nearby.

In addition, the installation of the locking plate 1 and the nut 3 is as follows.
Since the nut is held between the side plates 2, 2, it is fixed by spot welding from the side plates. Further, when the side plates 2, 2 are bent into a U-shape, only the nut portion may be folded back toward the upper surface of the nut, and the nut may be bitten and fixed. Further, the nut 3 is preferably attached to the locking plate 1 at a position where the ratio of the length of the member provided with the support hole 5 to the length of the member provided with the cut groove 4 is about 1:1.3 to 1.4.

Next, the guide hanger 6 is connected to the locking plate.
The wire rod is bent into a U-shape, one end of the U-shape is lengthened, and the end is formed into a circular attachment part 7 in a direction perpendicular to the length direction. The outer end surface of the circular mounting portion 7 has a through hole 9 having a diameter larger than that of the circular shape.
A seat plate 8 having a diameter is fixed to the seat plate 8. The seat plate 8 and the circular attachment part 7 are fixed together by, for example, extruding the through hole 9 part of the seat plate to one side to form a cylindrical part, inserting this cylindrical part inward from the circular attachment part 7, and tightening the cylindrical edge. Either fold the part outward and caulk it 10, or when forming a through hole, form two tongue pieces toward the center of the through hole, and connect these tongue pieces by locking them to the circular mounting part. You can.

The guide hanger may be an ordinary wire rod, but in consideration of packaging, transportation, construction, etc., it is better to use a spring wire rod so that it will not be deformed. However, it is also possible to use a strip-shaped plate material without using a wire rod.

Since the locking plate 1 and the guide hanger 6 are constructed as described above, simply inserting the free end 6a of the guide hanger 6 into the support hole 5 of the locking plate 1 from the outside of the plate toward the inside will separate the two. Assembled and combined.

Next, in order to attach an object using the present product, first, a pilot hole 21 with a diameter into which the guide hanger 6 can be inserted is drilled in the object 20 to be attached, such as a wall or ceiling. Next, with the locking plate 1 coupled to the guide hanger 6,
The locking plate 1 and the wire portion of the hanger are held parallel to each other and inserted into the pilot hole 21 from the U-shaped tip of the hanger (FIG. 4A). Then, when the hanger is inserted until the seat plate 8 contacts the object 20 to be attached, the locking plate 1 rotates downward in the part provided with the groove 4, and the nut 3 corresponds to the through hole 9 of the seat plate 8. (Figure 4B).

As described above, the nut 3 provided on the locking plate 1 is attached to the offset part, so the support hole 5 is located in the straight part that includes the free end 6a of the hanger, and this part includes the attachment part. As long as it is located above the straight line, the locking plate 1 is always vertical and parallel to the seat plate 8, and the nut 3
exists at the extended position of the through hole 9.

Next, attach the attachment 22 to the seat plate 8, screw the bolt 23 from the outside of the attachment into the nut 3 of the locking plate through the through hole 9, and tighten the bolt 23.
The nut 3 is attached to the object 2 along the guide hanger 6.
0, and after bonding to the back side of the object to be attached, the attachment 22 is firmly fixed (FIG. 4C).

(Effects of the invention) The present invention is for fixing an object to a wall, ceiling, etc. by tightening a bolt inserted through the object to a nut superimposed on the inside of the wall, ceiling, etc.
Since the force of the nut is received by the locking plate, it has the effect of being able to receive a large load or external force.

Further, since the guide hanger is a member that allows the locking plate to be inserted into a hole in an object to be attached such as a wall or ceiling and is attached to the opposite side, it may be made of a material such as plastic in addition to metal wire.

Furthermore, when the locking device of the present invention is inserted into an object to be attached such as a wall or ceiling, it is possible to attach the object as long as the locking plate can maintain a vertical posture on the opposite side of the object. It can be used for attached objects of different sizes and thicknesses.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the entire assembly, Figures 2 and 3.
The figures are parts diagrams: Fig. 2A is a plan view of the locking plate, B is a front view thereof, Fig. 3A is a side view of the guide hanger, B is a front view thereof, and Figs. 4A, B, and C are It is an explanatory diagram showing a construction order. DESCRIPTION OF SYMBOLS 1... Locking plate, 2... Side plate, 3... Nut, 4... Cut groove, 5... Support hole, 6... Guide hanger, 6a... Free end, 7... Circular mounting part, 8
...Seat plate, 9...Through hole, 10...Caulking stop, 2
0... object to be attached, 21... pilot hole, 22... object to be attached, 23... bolt.

Claims (1)

[Scope of utility model registration request] The nut is fixed in an deviated position with a long and thin plate, and a kerf is formed on the longer side from the center of the nut to the edge.
The other side consists of a locking plate each provided with a support hole, and a guide hanger made of a wire bent into a U shape and provided with a seat plate having a through hole at the base end, and the guide hanger is used as a support for the locking plate. A locking device characterized by being inserted into a hole.