JPS62209207A - Anchor nail - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an anchor nail used in a soft and porous material, namely foamed concrete (hereinafter simply referred to as ALC).

[Conventional technology and its problems]

Conventionally, in order to attach a member such as a hook to an ALC,
For example, an anchor nail C as shown in FIG. 13 has been used which has leg bodies A and B connected at a head a and having a tapered inclined surface formed on the inner surface of the tip. Therefore, as shown in the example,
Once the anchor nail C is driven into the foamed concrete d to attach the attached member e, the attached member e cannot be removed. In addition, in order to make the attached member e removable, a hole is made in the foamed concrete d, and by inserting it together with a screw into the chain hole and screwing it through, the entire length is contracted and the outer diameter is expanded, while the chain hole is It was necessary to attach the member e to be attached via a member that can be strongly press-fitted to the circumferential surface of the member e. Therefore, in order to use this member, it is first necessary to make holes in the foamed concrete d, which is troublesome, and furthermore, this member has the drawbacks of being complicated and increasing the cost.

An object of the present invention is to provide an anchor nail that overcomes the above-mentioned conventional problems and can easily attach and detach an attached member even when the attached member is attached to foamed concrete by driving. .

[Means for solving problems]

An anchor nail according to a first aspect of the present invention includes an anchor body having at least two leg bodies whose proximal ends are connected to a threaded rod and whose distal inner surfaces are formed into tapered inclined surfaces; A driving nut member having a screw hole that is screwed into the rod, and which is driven into the threaded rod to drive the anchor body into foamed concrete.

The second aspect of the present invention has a screw rod at the base end and two or more legs formed on the tip 8 [11 ("A slope) on the inner surface of the tip, and further, the screw rod has a screw portion and , and a hammer striking protrusion having an outer diameter smaller than the root diameter of the threaded portion.

[Effect]

Hit the driving nut screwed onto the threaded rod with a hammer or the like, or directly hit the hammer impact protrusion of the threaded rod without using this nut, to form the main body of A.
As the anchor nails are driven into the foamed concrete 1-1, the legs will expand and the anchor nails will be fixed to the foamed concrete 1-(ALC). In this state, in the former case, if the driving nut member is screwed back and removed from the screw rod, the screw rod will be in a state of protruding from the surface of the ALC. (In the latter case, it is not necessary to remove it.) Therefore, if the member to be attached is inserted into this threaded rod and the driving nand member or another slot is screwed, the member to be attached will be removed. Attached to ALC. Also, v
By removing the attached oak 1-, etc., the member to be attached can be removed. In the latter case, even if the hammer striking protrusion is plastically deformed and crushed, its outer diameter is small and there is no problem in threading the nut into and out of the threaded portion.

〔Example〕

Hereinafter, the present invention will be explained in detail based on drawings showing examples.

FIG. 1 shows an anchor nail according to the present invention, and in the same figure, reference numeral 1 denotes an anchor body having a pair of legs 3 whose distal inner surface is formed at a tip 811+ ('J slope 2), and this proximal end 4. is formed by connecting the base ends of the legs 3, 3.

That is, this anchor body 1 has a cross section of 2 having a substantially semicircular cross section.
The book legs 3, 3 are opposed to each other on their sides, and are integrally connected at a base end 4. Also, the facing surface 5 of each leg 3.3
．． 5 is connected by connecting piece G, 6.6. Note that the number of connecting pieces 6 is arbitrary. 7 is a sliding member that is interposed between the legs 3 and 3 and slides between the legs 3.3;
As shown in the figure, it consists of a connecting piece cutting member 8 made of a rectangular thin plate-like body, and a wedge body 9 connected to the tip of the connecting piece cutting member 8.

That is, a semi-elliptical notch 11 is formed in the base end surface 10 of the connecting piece cutting member 8, and when this anchor nail is driven, the connecting pieces 6 are sequentially cut at the notch 11. I'm going to go. In addition, the wedge body 9 is in the state before being driven into the leg body 3.
, 3 are interposed between the tapered inclined surfaces 2, 2.

12 is a threaded rod connected to the proximal end 4 of the anchor body l, as shown in FIGS. 4 to 7.
A driving nut member 14 for driving the anchor body into foamed concrete (ALC) 13 is screwed together. The driving nut member 14 is a rectangular cylinder with a bottom (that is, the outer periphery is shaped like a G angle when viewed from above as shown in FIG. 2).

), the hole portion of which is formed into a screw hole 15 that is screwed into the screw rod 12. Furthermore, when the length of the screw rod 12 is set longer than the depth of the screw hole 15 and the screw rod 12 is screwed into the screw hole 15 as shown in FIG.
A gap 22 is created between the distal end surface 16 of the driving nut member I4 and the proximal end surface 17 of the anchor body 1, and the proximal end surface 18 of the threaded rod 12 is set so as to come into contact with the bottom surface 19 of the screw hole 15. . Further, the bottom surface of the driving nut member 14 is formed with a head 21 having a groove 20 into which the tip of a driver for screwing the driving nut member 14 forward and backward is fitted. 22 is the tip surface 1 of the driving naso I/member 14
6 and the proximal end surface 17 of the anchor body 1, and is a length adjusting member that is screwed forward and backward through the gap 22.

The length adjusting member 23 is preferably either a circumferential body or a disc body, but the outer diameter dimension is the maximum outer diameter dimension of the anchor body 1 (
(in a state where the legs 3, 3 are not expanded) is set larger. Furthermore, the outer diameter of the driving nut member 14 is also set larger than the maximum outer diameter of the anchor body 1.

As shown in FIG. If you drive it in the direction of the arrow with a tool etc., the sliding member 7
As the wedge body 9 expands the legs 3, 3, the connecting piece cutting member 8 sequentially cuts the connecting pieces 6, and as shown in FIG. 5 (1), the length of this anchor nail is adjusted. The member 23 is driven in.

In this state, if the length adjusting member 23 and the nut member 14 are removed, the threaded rod 12 will be fixed as shown in FIG.
In other words, the protrusion dimension of this threaded rod 12 is from the proximal end surface 18 of the threaded rod 12 to the distal end surface 2 of the length adjusting member 23, as shown in FIG.
Dimensions up to 5. Therefore, from the state shown in FIG. 6(1) to the state shown in FIG. 7(1), the attached member 26, such as a hook,
By inserting the through-hole 27 into the threaded rod 12 and screwing the nut member 14 onto the threaded rod 12, the member to be mounted 26 can be attached to AlCl2.

In addition, if the length adjusting member 23 is moved toward the NAND member 14 side as shown in FIG. 8 and driven into AlCl2, as shown in FIG.
As shown in II), the threaded rod 12 is driven slightly into the AlCl3. Therefore, the protrusion dimension of the threaded rod 12 is the sixth
As shown in FIG. 7(n), it is shorter than the state shown in FIG. 6(1) above, and can correspond to the thickness dimension of the attached member 26, and as shown in FIG. 7(■), It is also possible to use another nut 28 in place of the nut member 14. That is, the length of the threaded rod 12 can be adjusted by the length adjusting member 23. That is, before driving, the position of the adjusting member 23 is set and adjusted to an arbitrary position.

Furthermore, as shown in FIG. 9, it is preferable to omit the length adjusting member 23, and in this case, the protruding dimension of the threaded rod 12 can be set even shorter than that shown in FIG. 8.

Therefore, if the driving nut member 14 as described above is used, the base end surface 18 of the threaded rod 12 and the bottom surface 19 of the threaded hole 15
Since they are in contact with each other, each screw thread will not be damaged when being driven.

Next, FIG. 10 shows another embodiment, in which the driving nut member 14 is made of a rectangular cylinder without a bottom. In this case, when driving an anchor nail, the proximal end surface 29 of the driving nand member 14 is made to protrude from the threaded rod 12, and the proximal end surface 29 is struck with a hammer or the like, as shown in the figure.

Also in this case, it is preferable to interpose the length adjusting member 23 used in the above embodiment as shown by the imaginary line.

Furthermore, FIG. 11 shows another embodiment, in which the anchor body 1
An outer flange 30 is integrally formed at the base end 4 of the holder. In addition, it does not have the sliding member 7 and the connecting piece 6. Further, the driving nand member 14 used has a spherical bottom surface. Therefore, this anchor nail is
If you drive it into the tsuba, it will be driven into the outer tsuba 3o.

Next, FIG. 12 shows another embodiment, in which the threaded rod 12 consists of a threaded portion 29 and a hammer striking protrusion 30, and has a stepped portion in the middle. The outer diameter of the striking protrusion 30 is set smaller than the root diameter of the threaded portion 29. As a result, as shown by the imaginary line in the figure, even if the protrusion 30 is crushed after being hit with a hammer, the nut can subsequently be screwed forward.

The present invention is not limited to the illustrated embodiment, and the settings may be changed without departing from the gist of the present invention. For example, the number of legs 3 of the anchor body l is not limited to two, but may be changed to two or more. It is also preferable that the cross-sectional shape of the leg body 3 is not limited to a semicircular shape, but is also preferably fan-shaped. Further, the nut member 14 can of course be made into a cylindrical body, but if it is made into a square cylinder as in the embodiment, the nut member 14 can be easily screwed forward and backward.

[Sixth effect of the invention] According to the first invention, if the driving nut member 14 is removed after driving into AlCl2, the threaded rod 12 can be made to protrude from the ALC 13.
The member 26 to be attached can be easily attached to this AlCl2 by inserting the member 26 to be attached and screwing it with a screwdriver or the like. Furthermore, by removing this nut, etc., the attached portion 26 can be easily removed. In other words, A
It can be attached to lCl3, and workability can be slightly improved compared to conventional ones. In addition, each component is simple and production costs can be reduced.

Further, according to the second invention, the driving nand member can be omitted, and the threads of the threaded portion 29 are not soaked even when hit with a hammer, and there is no problem in screwing the nut forward and backward.

And the same effect as the first invention is exhibited.

[Brief explanation of drawings]

FIG. 1 is a partially sectional side view showing one embodiment of the present invention;
Fig. 2 is a plan view of the driving nand member, Fig. 3M is an enlarged perspective view of the sliding member interposed between the legs, and Figs. 4 to 7 are partial cross sections for sequentially explaining how to use it. 8 is a partially cross-sectional side view of the main part showing one usage example, FIG. 9 is a partially cross-sectional side view of the main part showing another usage example, and FIG. 10 is a part showing another example. FIG. 11 is a partially sectional side view showing still another embodiment, and FIG. 12 is a side view of main parts showing another embodiment of the invention. FIG. 13 is a partially sectional side view showing a conventional example. l...Anchor body, 2...Tapered inclined surface, 3...
Leg body, 4... Base end portion, 12... Screw rod, 13...
Foamed concrete, 14... Nut member for pouring, 15
...screw hole, 29...screw part, 30...hammer strike 'J protrusion.

Claims (1)

[Scope of Claims] 1. A leg body 3 whose base end 4 is connected to a threaded rod 12 and whose tip inner surface is formed into a tapered inclined surface 2 is provided with at least two legs.
The anchor body 1 has a screw hole 15 that is screwed into the screw rod 12 of the anchor body 1, and the anchor body 1 is inserted into the foamed concrete 13 by being driven into the screw rod 12. An anchor nail characterized by comprising a driving nut member 14 for driving into. 2. Two or more legs 3 having a threaded rod 12 at the base end 4 and having a tip inner surface formed into a tapered inclined surface 2, and further, the threaded rod 12 has a threaded portion 29 and An anchor nail comprising a hammer striking protrusion 30 having an outer diameter smaller than the root diameter of No. 29.