JPH0425029Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention is a device that can be attached as a knob, pull, or hook to the door, drawer, or wall of furniture, etc.
The present invention mainly relates to a screw-on protrusion member made of synthetic resin.

(Prior art) When screwing such a protruding member,
Structures in which screws and nuts are exposed to the outside are unsightly in appearance, and may even be dangerous.
It is advisable to avoid it.

In view of this, conventionally, for example, as shown in FIG.
The nut 4 is recessed concentrically with the hole 3, and the nut 4 is fixed in an embedded manner by gluing the nut 4 to the nut receiving seat 2 with adhesive, and the protruding member 1 is inserted from the back side of the wall 5 for mounting There is one in which the screw 6 is screwed into the nut 4, and there is another in which the nut 4 is integrally injection molded with the projection member 1.

(Problem to be solved by the invention) However, in the above screw fastening structure, the nut 4 is only fixed to the protruding member 1 by being adhesively fixed to the nut seat 2, so it cannot be used as a hook, etc. As a result of repeated external forces such as tensile force and downward load acting on the protruding member 1, the adhesive state between the nut 4 and the nut receiving seat 2 weakens, and the protruding member 1 sometimes comes off.

In addition, the conventional protrusion member 1 has problems in that the process of adhesively fixing the nut 4 to the nut receiving seat 2 requires a lot of effort and the cost of the adhesive. Therefore, from the viewpoint of moldability and economic efficiency, when synthetic resin is used as a material, there is a lot of wasted material.
Further, in the case where the protruding member 1 and the nut 4 are integrally injection molded, the mold is expensive and the cost of the product is high. Therefore, the purpose of this high school proposal is to solve these problems.

(Means for Solving the Problems) The means for achieving the above object is a hollow protruding member which is integrally formed by bonding or welding a thin main body and a cap together. The main body is provided with a bottom plate having a through hole for a screw, and a nut receiving seat is formed on the inner surface of the bottom plate so that a nut can be fitted concentrically with the through hole, and A substantially cylindrical rod-shaped member is provided on the inner surface facing the bottom plate, facing toward the nut receiving seat, being close to the nut housed in the nut receiving seat, and through which a screw screwed into the nut can be inserted. The present invention also provides a screw-type protruding member configured to seal the nut to the nut receiving seat by mating the cap body and connecting the nut to the nut receiving seat by adhesive or welding means.

(Function) The nut is fixed in a sealed manner by the nut receiving seat and the rod-shaped member.

The protruding member is screwed by inserting the shaft of the screw attached to the wall or the like through the screw through hole and screwing it into the nut.

(Example) Next, a first example of the present invention will be described based on FIGS. 1 to 3.

The protruding member 7 of this embodiment is screwed to a thin plate-like mounting board 8, and the mounting board 8 is attached to a door or drawer of furniture, or a wall of a building with an adhesive, and furthermore, a mounting hole 9 is formed. By fixing with nails, screws, etc., it can be used as a handle, hanger, or other hanging hook.

The projecting member 7 consists of a main body 10 and a cap 11, each of which is integrally molded using thermoplastic resin.

The main body 10 is formed into a relatively thin cylindrical shape, and a flat bottom plate 12 that closes one end of the cylindrical main body 10 is provided on the base end side thereof. A through hole 13 for a screw is provided in the center of the bottom plate 12, and a nut receiving seat 14 is protruded in a low cylindrical shape from the inner surface of the bottom plate 12 around the through hole 13. The inner circumferential side of the cylindrical wall of the nut receiving seat 14 is a recess 15 for storing a nut, which has a hexagonal planar shape. A hexagonal nut 16 with a relatively small diameter is fitted and fixed. In addition, an air vent hole 1 is provided on the side of the nut receiving seat 14.
7 is provided.

Next, the cap 11 includes a relatively thin circular plate member 18 that can be attached to close the opening on the tip side of the main body 10, and a relatively thin circular plate member 18 that can be attached to the main body 10 so as to close the opening on the front end side of the main body 10.
It consists of a flange 19 that protrudes to the side and is closely attached to the peripheral wall of the tip of the main body 10. cap 1
The outer part of 1 has a nice rounded shape as shown in the figure. A thin cylindrical rod-shaped member 20 is projected from the center of the inner surface of the round plate body 18 toward the main body 10 .

The outer diameter of the ring-shaped end surface at the tip of this rod-shaped member 20 is the same as the outer diameter of the ring-shaped end surface of the rod-shaped member 20.
It almost matches the diameter of the hexagonal end face of No. 6, and
The ring-shaped end face approaches and opposes the end face of the nut 16, reaching a position leaving a slight gap. The inner diameter of the rod-shaped member 20 is formed so that the shaft portion of a fixing screw 21, which will be described later, can be inserted therethrough.

Such a protrusion member 7 is formed in the recess 15 of the main body 10.
When the nut 16 is fitted and fixed, the main body 10
The cap 11 is fitted from the tip side of the main body 10, and the flange 19 and the peripheral wall of the tip of the main body 10 are integrated by high frequency welding. is formed.

In addition, the protruding member 7 formed in this way has its bottom plate 12 brought into contact with the mounting board 8, and the shaft portion of the fixing screw 21 inserted into the screwing hole 22 from the back side of the mounting board 8 is passed through. It is screwed to the mounting board 8 by screwing it into the nut 16 through the nut 13 and screwing it all the way down. Then, as described above, the mounting board 8 is fixed to the wall of a suitable object. After the mounting board 8 is fixed to the wall, the mounting hole 9 or the head of the nail or screw passed through the mounting hole 9 is covered with a suitable color coating or the like.

This embodiment is carried out as described above, and has the following functions and effects.

First, the nut 16 is fitted into and fixed to the nut receiving seat 14, and the tip of the rod-shaped member 20 is located close to the nut 16, so the nut 16 is fixed to the nut receiving seat 14 in a sealing manner, and the protruding member It is securely fixed inside 7. That is,
The nut 16 is not allowed to rotate in the circumferential direction in the recess 15, and the rod-shaped member 20 also restricts the screw 21 from shifting in the axial direction.

Therefore, the fixing screw 21 can be screwed in reliably, and there is no possibility that the protrusion member 7 will come off from the mounting board 8 after screwing.

Further, since the main body 10 and the rod-shaped member 20 are formed into a thin-walled cylindrical shape as a whole with a hollow portion between them, the amount of resin material used for molding can be significantly reduced, and costs can be reduced.

Furthermore, since the nut 16 is sealed in the nut receiving seat 14 with the rod-shaped member 20, there is no need to use adhesive to fix the screw 21, and
Since the nut 16 does not need to be injection molded integrally with the protruding member 20, it can be manufactured easily and at low cost.

In the above embodiment, the main body 10 and the cap 11 may be integrated using an adhesive. In this case, the main body 10 and the cap 11 can be formed using a resin material other than thermoplastic resin, and the air vent hole 17 is not necessary.

Alternatively, the protruding member 7 may be directly screwed to the wall of the object to be mounted, without using the mounting board 8, using a fixing screw inserted from the back side of the wall.

Next, a second embodiment of the present invention will be described based on FIG. 4.

In this embodiment, three protruding members 7 are screwed to the horizontally long mounting board 23 at predetermined intervals in the horizontal direction, thereby forming a triple hook. The number of protruding members 7 to be attached may be two or four or more.

The configuration, operation, and effects of other points in this embodiment are the same as those in the first embodiment.

Next, a third embodiment of the present invention will be described based on FIG.

The protruding member 24 of this embodiment is used as a drawer pull, and has a hollow cylindrical arch shape as shown. The main body 25 and the cap 26 each have a shape in which the cylindrical protrusion member 24 is divided in half along the approximate center line in the longitudinal direction.
Thread holes 27 are provided at both ends of the main body 25.
A flat bottom plate 28 is provided (only the base on one end side is shown cut away), and a nut receiving seat 29 is provided on the inner surface of the bottom plate 28 to accommodate a square nut 30. A cylindrical bar member 31 for holding down the square nut 30 is protruded.

The other aspects of the structure and effects of this embodiment are the same as those of the first embodiment.

(Effects of the invention) The present invention has a structure in which the nut for screwing is sealed with a rod-shaped material, so that the protruding member can be securely screwed, and the function can be fully performed. There is no need to fix the nut using a holder or to injection mold the nut integrally with the rod-shaped material, and there is a hollow part between the main body and the rod-shaped material to form a thin overall shape. Since the amount of resin material can be greatly reduced, manufacturing can be done easily and at low cost.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the first embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A, Fig. 3 is a sectional view taken along line B-B of Fig. 1, and Fig. 4 is a second embodiment of the invention. FIG. 5 is a partially cutaway side view of the third embodiment of the present invention;
FIG. 6 is a sectional view of a conventional example. 7... Projection member, 10... Main body, 11... Cap, 12... Bottom plate, 13... Through hole, 14... Nut receiver, 16... Nut, 20... Rod-shaped material.

Claims (1)

[Scope of utility model registration request] A hollow protruding member formed integrally by bonding or welding a thin-walled main body and a cap, the main body having a bottom plate having a through hole for a screw, A nut receiving seat is formed on the inner surface of the bottom plate so that a nut can be inserted concentrically with the through hole, and a nut receiving seat is formed on the inner surface of the cap opposite to the bottom plate facing toward the nut receiving seat. A substantially cylindrical bar-shaped member is protruded close to the nut housed in the seat and allows the screw threaded with the nut to be inserted therethrough, and the cap and main body are mated and connected by adhesive or welding means. A screw-fastening protrusion member configured to allow the nut to be sealed in the nut receiving seat.