JPH0618713U - Anchor bolt - Google Patents

Abstract

(57) [Summary] [Purpose] Eliminates the labor required after the anchor bolt is embedded. [Constitution] Head part (6) on hammer drill (24)
An anchor bolt body (1) is provided with a socket bolt (5) for fitting the socket bolt (5), ) It was formed with the threaded surface (3) left at one end.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, a base material such as concrete or bedrock is perforated, a capsule containing resin, a curing agent, and an aggregate is inserted into a hole in a sealed glass tube, and the anchor bolt main body is embedded in the hole. As a result, the capsule is destroyed and the content is filled in the gap between the anchor bolt body and the hole, and is chemically cured to fix the anchor bolt body to the base material.

[0002]

[Prior art]

 Conventionally, when embedding the anchor bolt body in the hole, a nut was double mounted on the anchor bolt body and a rotary impact was given with a hammer drill or the like.

[0003]

[Problems to be solved by the device]

 However, it is necessary to remove the double nut after fixing the anchor bolt body to the base material, but the double nut is so tight that it cannot be removed by hand, and a tool such as a monkey or spanner cannot be used. It had to be removed, which was troublesome.

[0004]

[Means for Solving the Problems]

 However, the present invention is equipped with a socket bolt that fits the head into a hammer drill, etc., and a plug part that fits in the socket groove formed at the tip of the socket bolt only in the axial direction is attached to one end of the anchor bolt body. It was formed with the screw surface left.

[0005]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Fig. 1 is an exploded view of a construction set of adhesive anchor bolts, and Fig. 2 is an assembly drawing thereof. In Fig. 1, (1) is an adhesive anchor bolt body, and as shown in Figs. Two quadrangular planes (2) and (2) that are axially cut out on both sides of one end of the body (1) and face each other in the diametrical direction, and the planes (2) and (2) are interrupted and diametrically oppose each other. A single letter-shaped plug portion (4) having two remaining threaded surfaces (3) (3) (3) as outer surfaces is formed at one end of the bolt body (1). Further, the other end of the bolt body (1) is cut obliquely with respect to the shaft center to be sharpened.

In the figure, (5) is a socket bolt, and as shown in FIG. 5, has a hexagonal head (6) to be fitted into a hammer drill. In addition, a socket groove (7) with a single letter is formed at the tip of the socket bolt (5) such as a slot for detachably fitting the plug portion (4). The socket groove (7) has a depth such that the lower part of the plug part (4) slightly protrudes when the plug part (4) is fitted, and the socket groove (7) has two flat surfaces (2) and (2) of the plug part (4). The rectangular flat surfaces (8) and (8) face each other, and the bottom surface (10) of the socket groove (7) faces the plug portion (4) upper surface (9) which is the upper surface of the bolt body (1). The two remaining screw surfaces (3) and (3) of (4) are formed so as to be exposed to the outside of the socket bolt (5) from both sides of the socket groove (7). Incidentally, (11) and (11) are two remaining threaded surfaces which are interrupted by the socket groove (7) and are opposed to each other in the diametrical direction.

In the figure, (12) is a cylindrical support, and as shown in FIG. 6, a female screw (13) into which the socket bolt (5) is screwed and inserted is provided from the upper end of the inner hole of the support (12) to the vicinity of the lower end. And the diameter of the lower end portion (14) of the inner hole without the female screw (13) is substantially the same as that of the bolt body (1).

In the figure, reference numeral (15) denotes a U-shaped protective cover that fits into the socket groove (7) and covers the outside of the plug portion (4). As shown in FIG. 7, the upper surface (9) of the plug portion (4) is also covered. ), Two leg portions (17) and (17) that cover the remaining threaded surfaces (3) and (3) of the plug portion (4) are formed so as to face each other from both sides of the upper surface (16).

FIG. 8 is an explanatory view of a capsule (18) which is an adhesive used for an adhesive anchor bolt, in which an aggregate such as a resin, a curing agent and gravel is contained in a sealed glass tube (19). Has been done.

Then, a procedure for constructing the adhesive anchor bolt will be described with reference to FIG. First, as shown in (a), the procedure for constructing an adhesive anchor bolt is to drill a hole (22) of a predetermined size with a drill (21) at a predetermined anchor bolt embedding position in a base material (20) such as concrete or rock. I do. Next, as shown in (b), the chips in the hole (22) are removed, the depth of the hole (22) is confirmed, and then the capsule (18) is inserted into the hole (22). At this time, a poly washer (23) is attached to the upper end of the capsule (18) to regulate the free movement within the hole (22). Then, as shown in (c) and FIG. 2, the socket bolt (5) is screwed and inserted from above the support (12), and the plug portion (4) of the anchor bolt main body (1) is inserted from below the support (12). Insert the plug part (4) into the socket groove (7) inside the support (12), and connect the anchor bolt body (1) to the tip of the socket bolt (5) only in the axial direction so as to be separable. . The protective cover (15) is fitted into the socket groove (7) in advance before fitting the plug portion (4) into the socket groove (7). The upper surface (16) of the protective cover (15) abuts the bottom surface (10) of the socket groove (7), and the left and right open parts of the socket groove (7) are closed by both leg parts (17) (17). Fit the groove (7) so that it opens only below the socket bolt (5). Therefore, in the plug portion (4), the upper surface (9) contacts the upper surface (16) of the protective cover (15), and the remaining screw surface (3) is formed on both legs (17) (17) of the protective cover (15). (3) is covered and fitted into the socket groove (7) with the flat surfaces (2) and (2) facing the flat surfaces (8) and (8) of the socket groove (7). After that, the anchor bolt body (1) and the socket bolt (5), which are connected together with the tip of the anchor bolt body (1) aligned with the hole (22), are erected vertically, and the socket bolt (5) A hammer drill (24) is fitted to the hexagonal head (6) of the machine, and a rotary impact is applied from the hammer drill (24) to the anchor bolt body (1) through the socket bolt (5), as shown in (b). Similarly, the anchor bolt body (1) is embedded in the hole (22). Here, the impact (vertical vibration) given to the socket bolt (5) from the hammer drill (24) causes the bottom surface (10) of the socket groove (7) to pass through the upper surface (16) of the protective cover (15). It is transmitted to the upper surface (9) of the plug part (4) via the anchor bolt body (1) and is applied to the socket bolt (5) from the hammer drill (24). It is transmitted from the planes (8) and (8) to the planes (2) and (2) of the plug portion (4) and applied to the entire anchor bolt body (1). Since the rotation of the anchor bolt main body (1) is performed on the axis of the socket bolt (5) by the support (12), the anchor bolt main body (1) can be well embedded in the hole (22). Also, when embedding so that one anchor bolt is broken from the middle, the anchor bolt main body (1) and the socket bolt (5) connected to each other are separated at the connecting portion, that is, the socket groove (7). The plug (4) can be prevented from coming off from the support (12), and the embedding work can be performed safely.

Then, when the anchor bolt (1) is embedded in the hole (22), the capsule (18) is broken and the contents flow out into the hole (22), as shown in (b), the anchor bolt. The contents are filled in the gap between the body (1) and the hole (22), and after a predetermined curing time, the anchor bolt body (1) is fixed to the base material (20) as shown in (e) and (f). It is done. Here, it is necessary to keep the anchor bolt body (1) stationary until a predetermined curing time has passed, but as shown in (e), the socket bolt (5), the support (12), and the protective cover (15). ) Can be removed integrally without moving the anchor bolt body (1) simply by pulling it upward, so this removal does not have hardening of the contents, that is, the anchor bolt body (1) is the base material (20). It can be done before it is completely bonded and fixed to the socket bolt (5), the support (12) and the protective cover (15) that were used for embedding the anchor bolt main body (1). You can immediately start the construction of the next anchor bolt body (1) with the help of multiple sets of socket bolts (5), supports (12) and protective covers (15). It is possible to deal with only one set, and the construction time per one can be shortened, and the socket bolt (5), support (12) and protective cover (15) can be handled by hand without using tools. It can be easily removed from the anchor bolt body (1), saves labor, and makes the effect of shortening the construction time more remarkable.

Then, as shown in (f), the bracket (27) for mounting various devices is fastened and fixed to the surface of the base material (20) via the anchor bolt body (1), the nut (25) and the washer (26). At this time, the nut (25) can be screwed to the anchor bolt main body (1) by the remaining screw surface (3) (3) of the plug portion (4). Accordingly, the plug portion (4) can also function as an anchor bolt, and as is well known, it is not necessary to provide a square shaft portion for transmitting rotation on the upper surface of the anchor bolt body (1), and the anchor bolt body (1) can be provided. ), The weight does not become heavy, and the product cost does not increase. Also, the remaining screw surface (3) (3) of the plug part (4), which is the starting end of the screw surface of the anchor bolt body (1), may come into contact with the ridge (13) of the support (12) and collapse when embedded. The protective cover (15) can prevent it, and the nut (25) can be smoothly screwed to the anchor bolt main body (1).

In the above embodiment, from the socket bolt (5) to the anchor bolt body (1), two planes (8) and (8) of the socket groove (7) and two planes (2) of the plug part (4) are provided. (2) That is, the rotation is transmitted on the two surfaces, but as shown in FIG. 10, the socket groove (7a) forming the three planes (8a), (8a), and (8a) for transmitting the rotation is provided with the socket bolt (7a). 5) Anchor has a plug part (4a) which is formed at the tip and which forms three planes (2a) (2a) (2a) facing the planes (8a) (8a) (8a) and receiving rotation. It may be formed on one end of the bolt body (1) so that the rotation is transmitted from the socket bolt (5) to the anchor bolt body (1) on three sides. Since the other structure is the same as that of the above-mentioned embodiment, the description thereof is given the same reference numeral and omitted.

[0014]

[Effect of device]

 As is apparent from the above embodiments, the present invention is provided with the socket bolt (5) for fitting the head (6) to the hammer drill (24), and the socket groove (7) formed at the tip of the socket bolt (5). ) Is formed by leaving the threaded surface (3) at one end of the anchor bolt main body (1) so that the anchor bolt main body (1) is embedded. After that, the socket bolt (5) can be easily removed by hand without the use of tools, so the work time after embedding can be saved, and the anchor bolt main body (1) can be installed easily and in a shorter time than before. In addition, since the threaded surfaces (3) and (3) are left on the plug part (4), the plug part (4) can also function as an anchor bolt, and the angular shaft part that transmits rotation is specially anchored. bolt It is not necessary to provide it on the upper surface of the body (1), the length of the anchor bolt main body (1) does not become long, the weight does not increase, the product cost does not increase, and the above-mentioned operation can be satisfactorily obtained. It has a great effect.

[Brief description of drawings]

FIG. 1 is an exploded view of a construction set of adhesive anchor bolts.

FIG. 2 is an assembly view of a construction set of adhesive anchor bolts.

FIG. 3 is a plan view showing a fitted state of a plug portion and a socket groove.

FIG. 4 is a plan view of the anchor bolt main body.

FIG. 5 is a bottom view of the socket bolt.

FIG. 6 is a plan view of a support.

FIG. 7 is a bottom view of the protective cover.

FIG. 8 is an explanatory diagram of a capsule.

FIG. 9 is an explanatory view showing a procedure for constructing an anchor bolt.

FIG. 10 is a plan view showing a modification of the plug part and the socket part.

[Explanation of symbols]

 (1) Anchor bolt body (3) (3) Residual screw surface (4) Plug part (5) Socket bolt (6) Head (7) Socket groove (24) Hammer drill

Claims (1)

[Scope of utility model registration request] 1. A socket bolt for fitting a head portion to a hammer drill or the like, and a plug portion fitted to a socket groove formed at a tip of the socket bolt so as to be movable only in an axial direction is screwed to one end of an anchor bolt main body. An anchor bolt characterized by being formed with the surface left.