JPH082239Y2 - Anchor device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor device for erecting a reinforcing bar on a concrete floor surface or the like.

[0002]

2. Description of the Related Art In constructing a concrete floor surface, if a reinforcing bar for fixing a partition is erected in a rising shape at a portion where a partition or the like is to be attached, it will interfere with concrete placing work. After the construction of, the steel bars with anchors are driven upright on the concrete floor.

In the anchor for concrete, one end side of an anchor cylindrical body made of metal is divided into a plurality of slits in the axial direction, and a truncated cone-shaped wedge body is inserted into one end side of the anchor cylindrical body. When the anchor cylinder is driven while it is inserted into the pilot hole provided in the concrete, the divided part of the anchor cylinder expands in the concrete due to the wedge body, and it becomes a retaining state. Reinforcing bars connected to the anchor cylinder are erected on the floor.

Conventionally, the connection between the anchor and the reinforcing bar is to insert the reinforcing bar from the other end side into the anchor cylinder body, then draw the outer periphery of the other end side of the anchor cylinder body, and crimp the end portion of the anchor cylinder body. To fix the rebar.

[0005]

By the way, when the end portion of the anchor cylinder is subjected to drawing, material escape occurs on the outer peripheral surface, and the outer peripheral surface of the anchor cylindrical body partially has a large diameter. The prepared hole formed in the concrete has to have a large diameter, which lowers the anchoring strength of the anchor and causes a problem that the reinforcing bars are apt to be smashed.

Therefore, an object of the present invention is to provide an anchor device capable of connecting the anchor and the reinforcing bar without increasing the outer diameter of the anchor cylindrical body, and firmly fixing the reinforcing bar to the concrete so as not to cause a grazing. Will be done.

[0007]

In order to solve the above problems, the present invention is to connect an anchor in which a wedge body is fitted to one end side of an anchor cylinder body divided into a plurality of slits and the anchor. A structure in which a horizontal hole is provided in the peripheral wall of the other end side of the anchor cylinder, and the reinforcing bar inserted from the other end side into the anchor cylinder and the anchor cylinder are fixed by welding at the portion of the horizontal hole. Is adopted.

[0008]

[Operation] When the anchor cylinder and the reinforcing bar are connected by welding at the portion of the lateral hole provided in the anchor cylinder, the diameter does not change on the outer peripheral surface of the anchor cylinder, and the pilot hole provided in the concrete is the anchor. Anything that fits the outer diameter of the tubular body may be used, and there is no rattling between the pilot hole and the anchor tubular body when the anchor is driven, and the reinforcing bar can be firmly fixed through the anchor.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in the drawing, the anchor 1 is made of a metal cylindrical body, and one end side is divided into a plurality of anchor slits 2 by an axial slit 2. A concave step portion 5 is formed on the outer peripheral surface of the anchor cylinder body 3 in order to obtain pull-out strength against concrete.

Inside the anchor cylinder 3, one end side from the substantially middle portion is a driving hole 6 of the wedge body 4 and the other end side is a reinforcing bar insertion hole 7 having a diameter larger than the driving hole 6, and the reinforcing bar 8 is of both holes. It is inserted so as to abut the stepped portion 9.

In order to connect the anchor cylinder 3 and the reinforcing bar 8, the peripheral wall on the other end side of the anchor cylinder 3 is provided with lateral holes 10 on both sides of the axis, and the reinforcing bar 8 is inserted in the insertion hole 7. Welding 11 is performed in the lateral hole 10 in a state in which is inserted, and by this welding 11, the anchor cylinder 3 and the reinforcing bar 8 are fixedly coupled.

The welding 11 is applied to fill the lateral hole 10 so that the welding 11 does not appear on the outer peripheral surface of the anchor cylinder 3 and the outer diameter of the anchor cylinder 3 does not change.

The anchor device of the present invention is constructed as described above, and the anchor cylinder 3 and the reinforcing bar 8 are joined by welding 11 and the wedge body 4 is set under the anchor cylinder 3 as shown in FIG. 1 (B). In order to erect the reinforcing bar 8 on the concrete floor A in this state, as shown in FIG. When the anchor cylinder 3 is driven in with 1 inserted, the anchor cylinder 3 enters the wedge body 4 that stops at the inner end of the pilot hole B, and the slit 2 of the anchor cylinder 3
The part divided by is expanded in the pilot hole B, the anchor cylinder 3 is fixed to the concrete in a retaining shape, and the reinforcing bar 8 is fixed on the concrete floor A in an upright state.

The reinforcing bars 8 erected on the concrete floor A in this way are used for various partitions and wall materials.

[0016]

As described above, according to the present invention, a lateral hole is provided in the peripheral wall of the anchor cylinder, and the anchor cylinder and the reinforcing bar are fixed by welding at this lateral hole portion. The connection can be done without changing the outer diameter of the anchor cylinder, and the pilot hole provided in the concrete can be formed so as to match the outer diameter of the anchor cylinder, so that there is no rattling of the anchor cylinder against the pilot hole, Reinforcement can be firmly fixed.

[Brief description of drawings]

FIG. 1A is an exploded perspective view of an anchor device, and FIG. 1B is a vertical cross-sectional view showing an assembled state of the same.

[Fig. 2] Vertical sectional view of the anchor device fixed to the concrete floor.

[Explanation of symbols]

 1 Anchor 2 Slit 3 Anchor cylinder 4 Wedge body 8 Reinforcing bar 10 Side hole 11 Welding

Claims (1)

[Scope of utility model registration request] 1. A combination of an anchor in which a wedge body is fitted to one end of an anchor cylinder divided into a plurality of slits and a reinforcing bar connected to the anchor, and a lateral hole is formed in the peripheral wall of the other end of the anchor cylinder. The anchor device is characterized in that the rebar inserted into the anchor cylinder from the other end side and the anchor cylinder are fixed by welding at the lateral hole portion.