JPH0676436U - Grip jig for anchor wire recovery device - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Grip used in an anchor steel wire recovery device that can quickly and easily fix the winding end of the anchor steel wire and prevent the anchor steel wire from breaking. Provide jig. [Structure] A drum-shaped reel having radial ribs 16 on an inner taper surface 14 is rotated, and an anchor is attached to the taper surface.
In the grip jig 4 for fixing the winding end portion of the anchor steel wire used in the device for winding and recovering the steel wire 21, the grip portion 43 rotatably mounted on the taper surface, Anchor steel characterized by having an insertion hole 41 for inserting an anchor steel wire and fixing it with a wedge, and a locking surface 42a for locking the rotation of the grip part by locking with a rib. It is a grip jig used for a wire recovery device.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a grip jig used in an anchor steel wire recovery device.

[0002]

[Prior art]

 Conventionally, when recovering a removable anchor steel wire, an apparatus as shown in FIG. 5 (Japanese Patent Application No. 3-244312) has been used. In this device, a drive cone 11 driven by a rotary motor 1 and a driven cone 12 which can be connected to and disconnected from the drive cone 11 constitute a reel 13, and the drum-shaped reel 13 is formed. The anchor steel wire 21 is wound and recovered from the anchor hole 2 by rotating.

[0003]

[Problems to be solved by the device]

 The above conventional technique has the following problems. That is, at the time of winding the anchor steel wire 21, it is necessary to fix the winding end, but conventionally, the anchor steel wire 21 is inserted into the fastening jig 3 fixed to the peripheral surface of the rotary motor 1 by welding or the like. And was fixed. However, in this case, since the anchor steel wire 21 is very hard and the exposed dimension from the anchor hole 2 is short, even if it is manually bent and inserted into the fastening jig 3, it is difficult to insert it depending on the angle. , It takes a lot of time. Further, since the anchor steel wire 21 is forcibly bent at the edge of the cone when the anchor steel wire 21 is wound up, the anchor steel wire 21 may be broken.

[0004]

[Purpose of the present invention]

 The present invention has been made to solve the above-mentioned problems, and an anchor that can fasten the winding end of an anchor steel wire quickly and easily and can prevent the anchor steel wire from breaking. -To provide a grip jig used in a steel wire recovery device.

[0005]

[Means for Solving the Problems]

 That is, the present invention is an apparatus for rotating a drum-shaped reel having radial ribs on the inner taper surface and winding up and recovering the anchor steel wire on the taper surface. In the grip jig used to fix the winding end of the anchor steel wire, to insert the anchor steel wire into the grip mounted rotatably on the taper surface and fix it with a wedge And a locking surface for locking the rotation of the grip part by locking the insertion hole of the grip part, and a grip jig used in the anchor steel wire recovery device.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 2 to 4, the grip jig 4 has a grip portion 43 in which an insertion hole 41 having a diameter larger than that of the anchor steel wire 21 is formed and two hooking surfaces 42 are formed, and a grip portion 43 thereof. It comprises a rotary shaft 44 formed integrally with the portion 43, and a screw portion 45 engraved at the end of the rotary shaft 44.

The grip portion 43 is a block-shaped steel material, and an insertion hole 41 of the anchor steel wire 21 is opened by penetrating one surface and the back surface thereof. As shown in FIG. 2, the insertion hole 41 gradually increases in diameter from one surface to the other surface, the small-diameter side opening serves as the insertion port 46 of the anchor steel wire 21, and the large-diameter side opening forms the wedge 5. It is designated as the ejection port 47. Further, on the surface of the grip portion 43 where the insertion opening 46 is opened, as shown in FIG. 4, two engaging surfaces 42a and 42b, which are two flat surfaces that abut each other at the central portion, are formed.

Next, the rotating shaft 44 will be described. As shown in FIG. 2, the rotating shaft 44 is such that the abutting line 48 of the two locking surfaces 42a and 42b and the axis of the rotating shaft 44 are parallel to each other. It is provided so as to protrude from one surface of the grip portion 43. The axial dimension of the rotary shaft 44 is longer than the mounting hole 15 formed in the taper surface 14 of the reel, and the threaded portion 45 is formed at the tip thereof. Then, the nut 6 is mounted on the screw portion 45, and the grip portion 43 is rotatably mounted on the taper surface 14.

[0009]

[Action]

 A reel 13 in FIG. 1 is a reel 13 composed of the driving cone 11 and the driven cone 12 described in FIG. 5, and the taper surface 14 of FIG. It is formed on the inner side of the drum shape, and a plurality of ribs 16 are radially projected on the surface thereof. The grip jig 4 configured as described above is mounted in a state where the locking surfaces 42a and 42b are close to the rib 16.

At the time of winding the anchor steel wire 21, first, the tip of the anchor steel wire 21 is inserted into the insertion hole 41 from the locking surface 42 side, and a wedge is driven into the insertion hole 41 from the opposite side. And fix it. At this time, if the grip portion 43 is adjusted to the insertion angle of the anchor steel wire 21, the anchor steel wire 21 can be easily inserted without forcibly bending. Next, when the reel 13 is rotated, the grip portion 43 also follows and rotates, so that the anchor steel wire 21 can be safely wound without applying an excessive bending force.

When the grip portion 43 rotates to some extent, the locking surface 42 locks with the rib 16 and rotation is stopped, so that a reaction force for winding the anchor steel wire 21 can be secured. By providing the grip jig 4 at two positions symmetrical with respect to the taper surface 14, it is possible to handle winding in forward and reverse rotations. Further, the mounting surface of the grip portion 43 of the taper surface 14 may be processed flat so that the grip portion 43 can be smoothly rotated.

[0012]

[Effects of the Invention] Since the invention is as described above, the following effects can be obtained. <a> Since the grip jig of the present invention can be swung freely, even if a hard anchor steel wire is attached, it can be attached without changing the angle of the jig without forcibly bending the anchor steel wire. . Therefore, the anchor steel wire can be mounted quickly and easily.

<B> The grip jig equipped with the anchor steel wire can rotate until its locking surface abuts against the rib. Therefore, when the anchor steel wire is wound, excessive bending of the steel wire occurs. It is possible to prevent breakage of the steel wire without applying force.

[Brief description of drawings]

FIG. 1 is an explanatory view of an anchor-steel wire winding method.

FIG. 2 is an explanatory diagram of a grip jig

FIG. 3 is an explanatory diagram of a grip jig

FIG. 4 is an explanatory diagram of a grip jig

FIG. 5 is an explanatory diagram of a conventional technique.

Claims (1)

[Scope of utility model registration request] 1. An inner taper surface is used for a device for rotating an hourglass-shaped reel having radial ribs, and winding and recovering an anchor steel wire on the taper surface. In a grip jig for fixing a winding end portion of an anchor steel wire, an insertion hole for inserting an anchor steel wire into a grip portion rotatably mounted on the taper surface and fixing it with a wedge. And a locking surface for locking the rotation of the grip part by locking the rib, and a grip jig used in an anchor steel wire recovery device.