JPH072620U - Screw receiver - Google Patents

Abstract

(57) [Abstract] [Purpose] It can be easily inserted and fixed in the hole of the wall surface, but it has great resistance to removal from the hole, and it has a large wall thickness and a thin wall surface. A flexible screw receiver that can be used is provided at low cost by an integrally molded product made of synthetic resin. [Structure] An integrally molded product made of a synthetic resin material having appropriate flexibility and toughness, and a trunk portion (1) having a screw insertion hole (2) in a shaft core, and a lower end of the trunk portion (1) A pair of left and right legs (4), (4) that are flexibly connected to each other, and a connecting band (5) that connects the ends of the legs (4), (4) to each other. (5) is formed so as to be bendable in the central portion, and further the leg portions (4), (4)
The upper surface of the structure is formed in an arc shape in a cross-sectional shape along the width direction, and a plurality of arc-shaped engaging projections (7) are provided at regular intervals in the length direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention can be applied to telephones, lighting equipment, hooks, etc. for wall surfaces made of synthetic wood, particle board, gypsum board, concrete, etc. that have a small holding power for screws or materials that are difficult to form screws. The present invention relates to a screw receiver that can hold the set screw of the device in detail. Specifically, it can be easily inserted and fixed in the hole in the wall surface, but it has great resistance to removal from the hole. The present invention relates to a screw receiver made of a synthetic resin integrally molded product.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, there are various types of screw receivers of this type that are used by fitting them into holes formed in a wall surface. For example, after fitting it on the wall surface, insert the bolt or screw to expand the outer diameter of the shaft and bring it into close contact with the inner peripheral surface of the hole, or expand it in the space that penetrates the hole and open the opening edge of the hole. There is one that is adapted to be engaged with.

[0003]

[Problems to be solved by the device]

 However, such conventional screw receivers often require bolts to expand the shaft after they are inserted into the holes, and the structure is complicated. Type that is used by inserting into a wall, and one that is used by penetrating through the insertion hole of the front wall surface made of thin material, such as a wall surface formed by a double wall structure with a space inside. Was used properly. As described above, the conventional screw receiver has a complicated structure and lacks flexibility, or if the screw receiver has a simple structure, there is a problem with the holding force when the screw receiver is expanded and held in the hole. There was a point.

Therefore, a main object of the present invention is to integrally insert a screw receiver having synthetic resin into a hole in a wall surface so that the screw can be easily fixed in the hole. It is to provide a simple structure that can be manufactured by means.

Another important object of the present invention is to fix a large holding force to a wall surface formed of a material having a small holding force against screws such as synthetic wood, particle board, gypsum board, concrete and the like. The purpose is to provide a screw receiver that can be used. Furthermore, while it can be embedded and fixed in a bottomed hole formed in a thick wall surface, it can also be inserted into a through hole formed in a thin wall surface to insert it. It is also one of the major objects of the present invention to provide a flexible screw receiver that can be fixed by enlarging the portion.

[0006]

[Means for Solving the Problems]

 The structure of the screw receiver according to the present invention for achieving the above object will be described with reference to the reference numerals in the drawings corresponding to the embodiments. An integral body made of a synthetic resin material having appropriate flexibility and toughness. A molded product, which has a stem (1) having a screw insertion hole (2) in the shaft core, and a pair of left and right legs (4) flexibly connected to the lower end of the stem (1), (4) and a connecting band (5) that connects the ends of the legs (4) and (4) to each other, and the connecting band (5) is formed so that it can be bent at the center. The upper surfaces of the legs (4), (4) are formed in an arc shape in a cross-sectional shape along the width direction, and a plurality of arc-shaped engaging projections (7) are formed at regular intervals in the length direction. The structure is provided.

[0007]

[Action]

 As shown in FIG. 6, the screw receiver constructed as described above pushes the center part of the connecting band (5) with a fingertip or the like to form the connecting band (5) and the legs (4), (4). After they have been folded into a single shaft-like posture in close contact with each other, press fit into the bottomed hole (C) formed in the thick wall surface (W) as shown in FIG. After that, install the necessary equipment on the wall by screwing a wood screw (or tapping screw) (E) into the screw insertion hole (2). When the screw receiver of the present invention is used by penetrating through a hole in a wall surface formed of a thin material such as a wall surface formed of a double wall structure having a space inside, FIG. As shown in Fig. 9, after inserting the connecting band (5) and the legs (4), (4) axially engaged with each other into the hole (C) of the thin wall surface (W), , Press down the folded upper end of the connecting band (5) with a suitable thin rod or a rod-shaped tool (E) prepared in advance, and set the legs (4), (4) in the space behind the wall (C). ) Left and right legs can be opened and fixed. After this, as in the case of the use example shown in FIG. 7, by inserting a wood screw (or tapping screw) (E) into the screw insertion hole (2), the necessary equipment (F) is provided as shown in FIG. It can be attached to the wall.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 9, the screw receiver is integrally formed of a synthetic resin material having appropriate flexibility and elasticity, such as vinyl chloride or nylon, and has a large diameter at its upper end. Stem (1) having a flange (3) and a screw insertion hole (2) in the shaft core, and a pair of left and right legs (flexibly connected to the lower end of the stem (1)). 4) and (4), and a connecting band (5) connecting the tips of the legs (4) and (4).

The screw insertion hole (2) of the trunk portion (1) is set to a size such that a used wood screw (D) (see FIG. 10) can be screwed in while tapping. Further, the trunk portion (1) is formed with a plurality of vertically extending detent ridges (8), for example, as shown in the drawing, on the outer peripheral surface thereof. These anti-rotation ridges (8) ... also serve as reinforcement of the trunk (1). Moreover, the legs (4) and (4) are structured so that they can be bent at the connecting part (a) with the trunk part (1), and the connecting band (5) is also formed so as to be bendable at the central part. ing. With such a configuration, by pushing the central portion of the connecting strip (5) with a fingertip or the like from the open state of FIG. 1 as shown in FIG. 6, the connecting strip (5) and the legs (4), ( 4) It can be folded into a position where and are in close contact with each other. In this way, when the left and right legs (4), (4) are folded in a state in which they are in close contact with each other as shown in Fig. 7, the outer diameter of the shaft is the wall surface (B) to be inserted. The size is set so that it can be press-fitted into the hole (C).

Further, a small hole (6) penetrating vertically is provided in the central portion of the connecting band (5). As shown in FIG. 10, the small hole (6) is dimensioned so that the thin tip of the wood screw (D) used can be screwed in. Further, the upper surfaces of the leg portions (4), (4) are formed in an arc shape in a cross-sectional shape along the width direction, and a plurality of arc-shaped engaging projections are arranged at regular intervals in the length direction. (7) ... is provided.

When the screw receiver having such a structure is used for a bottomed hole (C) formed in a thick wall surface (W) such as a concrete wall as shown in FIG. As shown in 6, the central part of the connecting belt (5) is pushed in with a fingertip or the like so that the connecting belt (5) and the legs (4), (4) are in close contact with each other to form a single shaft. After folding in the posture, press it into the hole (C) as shown in Fig. 7. If it is difficult to enter at this time, it is better to hit with a hammer. After fixing the screw receiver in the hole (C) in this way, the necessary equipment can be attached to the wall by screwing the wood screw (or tapping screw) (E) into the screw insertion hole (2). Wear. When the screw receiver is fixed in the hole (C), since the upper surfaces of the legs (4) and (4) are formed in an arc shape in the cross-sectional shape along the width direction, the hole (C) The ridge line portion of the engaging projection (7) engages with the inner surface of the in line contact or surface contact, thereby obtaining a large holding force.

In addition, when the screw receiver of the present invention is used by penetrating a hole in a wall surface formed of a thin material such as a wall surface formed of a double wall structure having a space inside, As shown in Fig. 8, after inserting the connecting band (5) and the legs (4), (4) axially interleaved into the hole (C) of the thin wall surface (W), As shown in Fig. 9, push down the folded upper end of the connecting band (5) with an appropriate thin rod or a rod-shaped tool (E) prepared in advance, and press the leg (4) in the space behind the wall (C). , (4) can be fixed by opening the legs to the left and right. After this, as in the case of the use example of FIG. 7, by screwing a wood screw (or tapping screw) (E) into the screw insertion hole (2), the necessary equipment (F) is attached to the wall as shown in FIG. It is something that can be done.

In the above embodiment, the arcuate engagement protrusions (7) formed on the upper surfaces of the leg portions (4), (4) are formed in a substantially semicircular shape as shown in the sectional view of FIG. Although an example is shown, as shown in FIGS. 11 to 13, both side edge portions (7a) of the engaging projection (7) may be vertically cut.

The above has shown a typical embodiment of the present invention, but the present invention is implemented by appropriately modifying it within the scope of achieving the above-mentioned objects and the following effects by having the above-mentioned constitutional requirements. Is something that can be done.

[0015]

[Effect of device]

 Since the screw receiver of the present invention is constructed as described above, the central part of the connecting band is pushed in such that the left and right leg parts and the connecting part are in close contact with each other to form a single axis. By folding it, it can be easily inserted and fixed in the hole in the wall surface, and since the arc-shaped engaging projections are provided on the upper surface of the arc-shaped leg part, the inner surface of the hole on the wall surface On the other hand, the ridge line portion of the engaging projection engages with each other by line contact or surface contact, which allows fixing to the hole of the wall surface with a large holding force. Particularly, in the present invention, it is possible to fix it with a large holding force to a wall formed of a material having a small holding force for screws such as synthetic wood, particle board, gypsum board, concrete, etc. It is very convenient because it can be used over a wide range of surfaces from thin walls to thin walls, and in addition, it has a simple structure that can be manufactured by an integral molding method using synthetic resin, so it can be offered to the market at low cost. It has various remarkable effects.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a screw receiver according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the same.

4 is a sectional view taken along the line AA in FIG.

5 is a sectional view taken along line BB in FIG.

FIG. 6 is a front view showing a folding operation of the screw receiver according to the present invention.

FIG. 7 is a front view showing a first example of use of the screw receiver of the present invention.

FIG. 8 is a front view showing a first step of a second usage example of the screw receiver of the present invention.

FIG. 9 is a front view showing a second step of the second usage example.

FIG. 10 is a front view showing the final process of the second usage example.

FIG. 11 is a front view showing another embodiment of the present invention.

FIG. 12 is a plan view of the same.

13 is a sectional view taken along the line GG in FIG.

[Explanation of symbols]

 (1) Trunk (2) Screw insertion hole (4) Leg (5) Connecting band (7) Engagement protrusion,

Claims (1)

[Scope of utility model registration request] 1. An integrally molded product made of a synthetic resin material having appropriate flexibility and toughness, wherein a screw insertion hole is formed in a shaft core portion.
(2) a trunk portion (1), a pair of left and right leg portions (4), (4) flexibly connected to the lower end of the trunk portion (1), and the leg portions (4), (4) The connecting band (5) for connecting the tips of the
Is formed so that it can be bent at the center, and
The upper surfaces of (4) and (4) are formed in an arc shape in a cross-sectional shape along the width direction, and are provided with a plurality of arc-shaped engaging projections (7) at regular intervals in the length direction. Screw receiver.