JP2832814B2 - Hanging bolt mounting jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting jig for mounting a suspension bolt to a ceiling insert.

[0002]

2. Description of the Related Art In buildings such as buildings and factories, suspension bolts are suspended from ceilings for electrical work, air conditioning work, wiring / pipe work, and duct laying work.
Conventionally, the hanging bolts are attached to the ceiling, or a worker climbs on the assembled scaffold, and as shown in FIG. 7, a hole 2a of a plastic ceiling insert 2 buried in a concrete ceiling 1, The upper end of the suspension bolt 3 is slightly screwed in, the lower end of the suspension bolt 3 is gripped by a gripper 5 attached to the tip of a general-purpose electric drill 4, and the gripper 5 is rotated by the electric drill 4 and gripped. By rotating the suspension bolt 3 integrally with the body 5, the suspension bolt 3 is screwed into the ceiling insert 2 and fixed.

[0003]

However, in such a conventional mounting method, it is troublesome to use a stepladder or assemble a scaffold since it does not reach the ceiling.
In addition, there is a problem that danger is involved because the work is performed at a high place on a stepladder or a scaffold. An object of the present invention is to provide a hanging bolt mounting jig which can be mounted from the floor without using a stepladder or a scaffold.

[0004]

In order to achieve the above object, a hanging bolt mounting jig according to the present invention has, at a lower end portion of a rod-shaped body, a shaft fitted to a rotating portion of an electric drill. An upper end portion of the rod-shaped body having a fitting hole into which a fitting shaft of a hanging bolt gripper for an electric drill is fitted, and transmitting rotation of the electric drill to the gripper via the rod-shaped body. It is characterized by doing so.

Accordingly, the shaft at the lower end of the rod is fitted to the electric drill, and the fitting shaft of the gripper of the electric drill is fitted to the fitting hole at the upper end of the rod. The hanging bolt can be gripped and the hanging bolt can be rotated integrally with the rod-shaped body. Further, if the grip body is rotatably fitted to the rod-shaped body, if the operator grips and holds the grip body, the rod-shaped body can be rotated inside the grip body.
Work becomes easier.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a hanging bolt mounting jig of the present invention. In FIG.
Reference numeral 0 denotes a hanging bolt mounting jig according to an embodiment of the present invention. The jig has a polygonal cross section fitted to the tip of the electric drill 4 at the lower end of a rod 11 made of a cylindrical hollow pipe. The upper end of the shaft body 12 is fitted and fixed with a pin 12a.

The shaft body 12 is fitted into a polygonal hole of the rotating part 4a at the tip of the electric drill 4, and is formed in the same polygon so as to be rotated by the rotating part 4a. The shaft 12 and the rod 11 are integrally rotated by the rotating part 4a of the drill 4.

At the upper end of the rod 11 is provided a fitting hole 13 into which the fitting shaft 6 of the grip 5 of the electric drill 4 is fitted. The fitting hole 13 is formed in the same polygonal hole as the fitting shaft 6. Because of this, the rod 1
1, the fitting shaft 6 is fitted so as not to rotate.

A polygonal surface 14 is formed on the outer peripheral surface of the upper end of the rod 11 and an annular step 15 is provided at the lower end of the polygonal surface 14 (see FIG. 2). This polygon surface 14
In addition, a ring 16 whose inner diameter is smaller than the outer diameter of the rod-shaped body 11 and which cannot move below the annular step portion 15 is externally fitted.

The ring 16 has a horizontal screw hole 16.
The bolt 17a of the tightening bolt 17 is screwed into the screw hole 16a, and the tip of the bolt 17a passes through the hole 14a penetrating through the polygonal surface 14 of the rod 11 to form the fitting hole 13a. It is possible to enter within.

Therefore, as shown in FIG. 2, the knob 17a of the tightening bolt 17 is used to connect the bolt 17a to the ring 16a.
Into the fitting hole 13 by screwing into the screw hole 16a of
The top end of the bolt 17a is prevented from being pulled out of the fitting shaft 6 by being inserted into the annular concave portion 6a in the middle of the fitting shaft 6 of the gripping body 5.

While the rod 11 is being rotated by the electric drill 4 slightly above the lower end of the rod 11,
A cylindrical grip body 30 for an operator to grip by hand is rotatably fitted to the rod body 11. This grip 3
E-rings 33 and 34 are fitted and fixed by providing annular grooves 31 and 32 at two upper and lower portions of the rod 11 so that the O does not move more than a predetermined amount in the axial direction of the rod 11.

Next, how to use the hanging bolt mounting jig 10 will be described. As shown in FIG. 1, the gripper 5 is removed from the rotating part 4 a at the tip of the electric drill 4, and the shaft 12 at the lower end of the rod 11 of the hanging bolt mounting jig 10 is rotated at the rotating part at the tip of the electric drill 4. 4a.

The fitting shaft 6 of the gripping body 5 removed from the electric drill 4 is fitted into the fitting hole 13 at the upper end of the rod 11, and the tightening bolt 17 is screwed into the screw hole 16 a of the ring 16. The tip of the bolt 17a is inserted into the annular concave portion 6a of 6 to prevent the bolt 17a from being removed. The hanging bolt 3 is inserted into the holding hole 5a of the holding body 5.
Insert the bottom edge of

In this way, the operator grips the grip 30 pivotally attached to the rod 11 with one hand,
Holding the electric drill 4 with the other hand, insert the upper end of the suspension bolt 3 into the ceiling insert 2 to operate the electric drill 4. The rotation of the rotating part 4 a of the electric drill 4 is transmitted from the shaft 12 to the rod 11 and the gripper 5,
2. The rod 11, the grip 5 and the suspension bolt 3 are integrally rotated, and the upper end of the suspension bolt 3 is screwed and fixed to the ceiling insert 2.

As described above, the worker can mount the suspension bolts 3 on the ceiling insert 2 at a position lower by the length of the rod-shaped body 11, so that the worker can build a scaffold and climb on it or stepladder. This eliminates the need to work on the ground, and eliminates the danger of working at heights.

When the ceiling is higher, two or more mounting jigs of the present invention can be used in combination. That is, as shown in FIG. 3, the fitting hole 13 at the upper end of one rod 11
What is necessary is just to insert the shaft body 12 at the lower end of the other one rod-shaped body 11 and fix it by tightening it with the tightening bolt 17.

The fitting shaft 6 of the grip 5 inserted into the fitting hole 13 at the upper end of the rod 11 or another rod 1
Various methods are available for preventing the lower end of the shaft body 12 from being pulled out, in addition to the above-described method of the fastening bolt 17.

For example, as shown in FIG. 4, a circumferential horizontal hole 20 is provided at the upper end of the rod 11 and an elastic pin 21 having both ends of a metal "C" curved outward is attached to the rod. 11
And the center of the elastic pin 21 is
It can also be prevented from slipping out by entering the inside of the fitting shaft 6 and positioning it in the annular concave portion 6a of the fitting shaft 6. According to this method, the structure of the stopper is extremely simple.

Further, as shown in FIG. 5, a window hole 22 is provided at the upper end of the rod 11. A bent portion 23b, which is bent outward from the two legs 23a, 23a having a
3b, the elastic member 23 is used to form the window hole 2.
2 to the bent portions 23 on both sides in the fitting holes 13 of the rod-shaped body 11.
B, 23b may be bent inward and inserted, and the two legs 23a, 23a may be positioned in the annular concave portion 6a of the fitting shaft 6, so that they can be prevented from being removed. In this method, the structure of the retaining is extremely simple.

Further, as shown in FIG. 6, if the polygonal fitting hole 13 at the upper end of the rod 11 is formed with a tapered surface 24 so that the inside diameter becomes gradually smaller, the fitting of the grip 5 can be achieved. By pushing the shaft 6 downward strongly, it can be stopped. In order to remove the gripper 5 from the rod 11, a hole 25 for inserting a driver is provided below the tapered surface 24, the blade of the driver is inserted, and the gripper 5 is fitted around the edge of the hole 25 as a fulcrum. The fitting shaft 6 can be pulled out of the fitting hole 13 by prying up the tip of the joint shaft 6 upward.

In order to prevent the suspension bolt 3 whose lower end is gripped by the gripping body 5 from fluctuating, it is desirable to use a steady rest guide 40 as shown in FIG. As shown in FIG. 2, the steady rest guide 40 includes an outer fitting body 41 that is fitted over the gripping body 5 of the electric drill 4 from outside, and a pipe-shaped steady rest support body that accommodates the suspension bolt 3 therein. 42
The outer fitting body 41 is externally fitted to the holding body 5 to
A screw 43 is screwed into one of the screw holes 41 a to fix the outer fitting body 41 to the holding body 5, and the suspension bolt 3 is inserted from the upper end of the steady rest support 42 to fit into the holding hole 5 a of the holding body 5.

The use of the anti-sway guide 40 reduces the fluctuation of the upper ends of the suspension bolts 3, so that the suspension bolts 3 can be easily inserted into the ceiling insert 2, and the rotation of the suspension bolts 3 can be reduced. Since blurring is reduced, attachment to the ceiling insert 2 is further facilitated.
When the suspension bolts 3 having different dimensions are used, the holding body 5 corresponding to the dimensions may be attached to the upper end of the rod 11.

[0024]

As described above, according to the first aspect of the present invention, the lower end of the rod has a shaft fitted to the rotating part of the electric drill, and the upper end of the rod has the electric drill. Has a fitting hole into which a fitting shaft of a hanging bolt gripper for fitting is fitted, so that rotation by an electric drill can be transmitted to the gripper via the rod-shaped body, and therefore, it can be hung on a ceiling insert. When installing bolts, there is no need to work on a scaffold or on a stepladder, and you can work directly from the floor, preventing the danger of working at heights on conventional scaffolds and stepladders it can.

Further, if a grip body rotatably fitted to the rod-like body is provided as in claim 2, the rod-like body can be rotated inside the grip body while holding and holding the grip body. , Work becomes easier.

Further, when the fitting hole at the upper end of the rod-shaped member is formed in a polygonal shape so that the fitting shaft of the gripper is non-rotatably fitted, only the fitting shaft of the gripper is inserted. Therefore, the mounting of the gripping body becomes easy.

Further, if a tightening screw which can enter the fitting hole is provided at the upper end of the rod-shaped body as in claim 4, the fitting shaft of the holding body can be easily fixed.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention.

FIG. 2 is a sectional view showing an example of a use state of the embodiment of the present invention.

FIG. 3 is a sectional view showing another example of a use state of the embodiment of the present invention.

FIG. 4 is a perspective view showing a main part of another embodiment of the present invention.

FIG. 5 is a perspective view showing a main part of another embodiment of the present invention.

FIG. 6 is a sectional view showing a main part of another embodiment of the present invention.

FIG. 7 is a sectional view showing a conventional hanging bolt mounting method.

[Explanation of symbols]

 2 Ceiling Insert 3 Hanging Bolt 4 Electric Drill 5 Gripping Body 6 Fitting Shaft 10 Hanging Bolt Mounting Jig 11 Rod 12 Shaft 13 Fitting Hole 30 Grip

Claims (4)

(57) [Claims] 1. A rod having a shaft fitted to a rotating part of a rechargeable drill driver at a lower end of a rod-shaped body, and a fitting shaft of a suspension bolt gripper for an electric drill mounted on an upper end of the rod-shaped body. A hanging bolt mounting jig, wherein the jig has a fitting hole into which the rotation of the electric drill is transmitted to the gripping body via the rod-shaped body. 2. A hanging bolt mounting jig according to claim 1, further comprising a grip body rotatably fitted to said rod-shaped body. 3. The jig according to claim 1, wherein the fitting hole at the upper end of the rod-like body has a polygonal shape which fits the fitting shaft of the gripping body so that it cannot rotate. . 4. A hanging bolt mounting jig according to claim 1, wherein a tightening screw is provided at an upper end portion of said rod-shaped body so as to be able to enter said fitting hole.