JPH06330918A - Anchor for member fixture - Google Patents

Abstract

PURPOSE:To prevent destruction of a driving layer by bending outward each end of a wire in inverted U form. CONSTITUTION:A rod-shaped anchor member 4 is interposed between the bottom of a shaft 2 and over a crest part 1d, wherein the bottom of the anchor member 4 confronts a hole 1c provided in an outer cylinder 1. The anchor member 4 is made from a round metal wire of steel and bent in inverted U form, and the ends 4a of the metal wire are laid down and bent as confronting the inside of the hole 1c. When the head 2b of the shaft 2 is driven by hammer, the outer cylinder 1 and shaft 2 are consolidated by a spacer 6, and the outer cylinder 1 is driven till a flange 1b to stop there. With another strike, the outer cylinder 1 is stopped moving by the flange 1b and compressed by the head of the shaft 2, and the spacer cylinder 6 is split and segregated. With a subsequent strike, attachment of adhesive 3 is released, and the shaft head 2b is driven to the surface of the flange 1b. At this time, the anchor member 4 emerges out of the hole 1c and intrudes into the underlay layer B without destruction of the layer, and thus anchor is achieved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor member for fixing members such as nails and scales.

[0002]

2. Description of the Related Art One example of conventional technology is disclosed in Japanese Utility Model Laid-Open No. 62-196914. In this technique, the leg portion of the nail is divided into a pair of leg pieces along the axial direction, and a thin strip plate which is easily bent is sandwiched between the leg pieces. Then, as the nail was driven into the aerated concrete, the concrete layer entered between the leg pieces from the bottom of the leg pieces,
The strip plate is folded upward in a zigzag shape, and the two leg pieces open in an eight-shape to form an anchor.

[0003]

However, in the above-mentioned technique, since the legs of the nail open in an eight-shape at the same time when the nail is driven in, the nail is undesirably destroyed and a cavity is formed.
The pullout resistance is weak.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide an anchor member used for a member fixing tool which does not disadvantageously destroy the driving layer when driving.

[0005]

In order to solve the above problems, the structure of the present invention is as follows. That is, the first configuration is that both ends of the inverted U-shaped wire are bent outward.

The second structure is that both ends of the l-shaped wire are bent outward.

The third configuration is that the strip-shaped thin plate piece is cut along the length direction from the lower side to the front side, and is bent in a human-character shape.

[0008]

[Operation] When you hit the head of the shaft with a hammer and drive it in,
The outer cylinder and the shaft are integrated, and the outer cylinder is driven up to the flange and stopped. The head is driven up to the surface of the flange of the outer cylinder by the subsequent impact. At this time, the anchor member goes out of the hole of the outer cylinder and enters the inside of the base material. This provides an anchor against the pulling force of the nail.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below based on an embodiment shown in the drawings.

1, 2 and 3, the outer cylinder 1 has a concentric round flange 1b at the upper end of a cylindrical main body 1a made of steel, and the lower end is bent to form a point 1d. In addition, holes 1c are provided at two diametrically opposed locations near the pointed portion 1d.

A cylindrical main body 2a of a steel shaft 2 is inserted from the upper end of the outer cylinder 1 and has a concentric round head 2b at the upper end. An adhesive (or an adhesive) 3 is provided on the outer circumference of the columnar body 2a
Is applied, and the shaft 2 is prevented from coming off by adhesion or friction with the inner surface of the cylindrical body 1a of the outer cylinder 1.

The rod-shaped anchor member 4 is interposed between the lower end of the shaft 2 and above the pointed portion 1c, and the lower end faces the hole 1c of the outer cylinder 1. The anchor member 4 is made of steel and is bent into an inverted U-shape, and both ends 4a of the wire are on the lower side. ing.

The spacer cylinder 6 includes an outer cylinder flange 1b and a shaft head 2.
It is interposed between b and. The spacer cylinder 6 is made of a plastic (synthetic resin) cylinder, and a plurality of grooves 6a along the axial direction are provided at equal intervals on the outer peripheral surface.

An adhesive 7 in a capsule is interposed between the shaft 2 and the anchor member 4.

In the above, in FIG. 4, the exterior material A such as roof tile or wood board is attached to the surface of the lightweight cellular concrete base material B.
The case of fixing with the nail of the present invention will be described. Axis 2 with a hammer
When the head 2b of the head is hit and driven, the outer cylinder 1 and the shaft 2 are
Since the spacer 6 is provided, the spacers 6 are integrated and the outer cylinder 1 is driven up to the flange 1b and stopped. When subsequently hit, the outer cylinder 1 is stopped from moving due to the flange 1b, so that it is compressed by the head of the shaft 2 and the spacer cylinder 6 spreads out in the circumferential direction and is separated. By the subsequent impact, the adhesion of the adhesive 3 is released, and the shaft head 2b becomes the flange 1b of the outer cylinder 1.
Is driven up to the surface of. At this time, the anchor member 4 sequentially comes out from the hole 1c of the outer cylinder in the axial direction and enters the inside of the base material B. This provides an anchor against the pulling force of the nail. In addition, the capsule 7 is destroyed and the adhesive is applied to the outer cylinder 1.
It flows into the inside, and the outer cylinder 1, the shaft 2 and the anchor member 4 are fixed.

FIG. 5 shows another embodiment. The hole 1c of the outer cylinder is cut out at the upper side and bent inward to form a guide piece 1e, and the lower end of the anchor member 4 is supported by this.

FIG. 6 shows another embodiment. A cylindrical guide member 5 is provided inside the lower portion of the outer cylinder 1 and between the pointed portion 1d and the hole 1c. The upper end of the guide member 5 is a flat surface that is substantially perpendicular to the axial direction of the outer cylinder 1. In this case, as shown in FIG. 6, the lower lower surface of the anchor member 4 receives a reaction force by the upper surface of the guide member 5 and is strongly pressed against the corner portion 5a of the peripheral edge of the upper surface of the guide member 5, so that the tip end of the anchor member 4 is pushed. Bends upwards. By the subsequent hammer impact, the upper surface of the portion where the anchor member 4 passes through the outer cylindrical hole 1c is also strongly pressed against the corner angle 1f of the outer cylindrical hole 1c. As a result, the anchor member 4 exits from the outer cylinder while being strongly sandwiched between the upper and lower surfaces in the portion passing through the outer cylinder hole 1c, so that the anchor member 4 is "squeezed" and draws a substantially arc upward. And bends.

FIG. 7 shows still another embodiment. The lower end of the guide member 5 is a cusp and is replaced with the outer cylinder cusp 1d. That is, the guide member 51 is the cylindrical body 1 of the outer cylinder 1.
At the lower end of the cylindrical portion 51a that is concentric with a
b is integrally formed, and the upper end is a flat surface. A circular groove 51c is provided on the outer circumference of the columnar portion 51a, and the bent piece 1g at the lower end of the outer cylinder 1 is fitted into the circular groove 51c by caulking.

Further, as shown in FIG. 8, the outer cylinder 1 is molded so as to have a plurality of concavo-convex stripes along the axial direction, and the fixing force increases. In this case, the anchor member 4 is placed between the ridges facing each other.
If the holes 1c are provided in these portions with the interposition of, the positioning of the anchor member 4 with respect to the hole 1c becomes easy and reliable. Further, in this case, the adhesive 3 can be omitted by slightly increasing the outer diameter of the shaft 2 to generate a "tightening margin". Further, even when the outer cylinder 1 has a rectangular (square) cross-section as shown in FIG. 9, the adhesive 3 can be omitted by slightly increasing the thickness of the shaft 2 to make a tight margin.

The anchor member 4 is replaced by the anchor member shown in FIGS.
As shown in FIG. 1, a l-shaped (lowercase alphabetic character) letter wire is bent outward at both ends, or
As shown in Nos. 2 and 13, a strip thin plate piece is cut along the length direction from the lower side to the front side and bent into a human-character shape (or a letter-shape). Alternatively, a J-shaped wire (not shown) may be used, and this wire may come out from one hole of the outer cylinder.

As the anchor member, a usual material for nails is used. Also, if you use spring material such as stainless spring steel,
Since it is rich in elasticity, even if the positional relationship between the outer cylinder 1 and the anchor member is displaced due to an earthquake or the like, the original state is restored and the fixing strength is strong.

When the spacer 6 is not provided, the adhesive force of the adhesive 3 is increased. Thereby, the outer cylinder 1
Until the end of driving,
After that, the adhesion of the adhesive 3 is released, and the shaft 2 is driven into the outer cylinder 1. Further, as shown in FIG. 14, instead of the adhesive 3, a plurality of convex portions 3 are provided on the outer periphery of the columnar main body 2a at equal intervals in the circumferential direction, and this is a "tightening margin (screw) with the inner surface of the outer cylinder 1. "), And both are integrated until the outer cylinder 1 is driven in. Instead of the convex portion 3, an axial convex strip is arranged and provided in the circumferential direction. Further, these convex portions or ridges may be formed so as to project inside the outer cylinder 1 by pressing (or striking) them from the outer side of the outer cylinder 1.
Alternatively, as shown in FIG. 15, a circumferential groove 2c may be provided on the outer circumference of the shaft 2 and the ring packing 9 may be fitted therein.

FIG. 16 shows another embodiment of the shaft. The shaft does not have a head, and the sealing material layer 8 is applied to the upper part of the shaft. In this case, after driving the shaft 2 into the outer cylinder 1, the sealing material layer 8
Prevent the ingress of rainwater.

The present invention can be applied to an extremely wide range of applications such as nails, drawing hooks, tatami hooks, and other member fixing tools.
In addition to the above, the material of the driven member is applied to wood wool cement board, wood, tatami mat and the like.

The present invention is not limited to the examples and embodiments described above, but includes various modifications without departing from the spirit and scope of the claims.

[0026]

According to the structure of the present invention, since the rod-shaped anchor member projects in the length direction from the tip of the rod from the side surface near the tip of the outer cylinder, the anchor member smoothly penetrates without breaking the layer. To do. Therefore, the stability of the base of the fixture is also good. Moreover, since the thickness is determined by the outer cylinder and the shaft or the outer cylinder and the anchor member, the thickness can be made thinner than the conventional one, and it is easy to drive and the waterproof around the driven nail is also easy. Moreover, the pull-out proof strength can be freely designed by selecting the thickness, material strength and length of the anchor member.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is an end view taken along the line III-III in FIG.

FIG. 4 is a sectional view showing a state of use.

FIG. 5 is a second embodiment of the lower portion of the outer cylinder.

FIG. 6 is a third embodiment of the lower portion of the outer cylinder.

FIG. 7 is a fourth embodiment of the lower portion of the outer cylinder.

FIG. 8 is another embodiment of the outer cylinder.

FIG. 9 is another embodiment of the outer cylinder.

FIG. 10 is a front view of a second embodiment of the anchor member.

11 is a left side view of FIG.

FIG. 12 is a front view of a third embodiment of the anchor member.

FIG. 13 is a right side view of FIG.

FIG. 14 is a view showing another embodiment of a temporary fixing portion between the outer cylinder and the shaft.

FIG. 15 is a view showing another embodiment of a temporary fixing portion between the outer cylinder and the shaft.

FIG. 16 is another embodiment of the upper part of the shaft.

[Explanation of symbols]

1 ... Outer cylinder 1a ... Cylinder body 1b ... Flange 1c ... Hole
1d ... Point 2 ... Shaft 2a ... Main body 2b ... Head 3 ... Adhesive 4 ... Anchor member 4a ... End 5 ... Guide member 6 ... Spacer 7 ... Capsule 8 ... Sealing material layer

Claims (3)

[Claims] 1. An anchor member for a member fixing tool, wherein both ends of the inverted U-shaped wire are bent outward. 2. An anchor member for a member fixing tool, characterized in that both ends of the l-shaped wire are bent outward. 3. An anchor member for a member fixing tool, characterized in that a strip-shaped thin plate piece is cut along a length direction from a lower side to a front side of the upper side and bent in a human-character shape.