JPH0417340Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) This invention is a nail push-in method used when nailing a hook to a weak wall such as a plasterboard or pulling out the nail. It's about the ingredients.

(Prior Art) In recent years, hooks for hanging wall clocks, picture frames, etc. on pillars or walls have been developed that can be nailed to weak walls such as plasterboard.

As shown in FIG. 4, this hook has a protruding arm 20 protruding from the front side of a board 11, and a plurality of nail holes 12 are diagonally drilled in the board 11 in different directions. When the nails 15 are inserted into the plaster wall 14 through each nail hole 12 while the plaster wall is placed at a desired position, the nails 15 intersect inside the plaster wall 14 and are firmly attached.

Here, when inserting the nail 15, it was necessary to push in the head of the nail with a flat metal fitting such as a coin, since driving it with a hammer may cause cracks in the fragile wall.

On the other hand, as shown in Japanese Utility Model Application Publication No. 50-122977, a cylindrical body is fixed to the head with a screw, and a magnetic pin push rod is provided in the center of the cylindrical body. An insect pin driving device was devised in which a spring was provided between the cylinder and the insect pin pushing rod, and the insect pin guide cylinder was held at the tip of the cylinder by a stopper of the guide cylinder.

Further, the head of this insect pin driver, which is opposite to the tip of the cylindrical body, was equipped with a pin tapping part and a pin puller at both ends, like a general hammer.

(Problem that the invention aims to solve) When attaching the above hook to the wall, if you push the nail into the wall with your fingertip through a coin, there will be no problem with one or two hooks, but interior construction work When a trader has to successively install a large number of hooks as part of his work, there is a problem in that his fingertips gradually become sore and he is unable to install the hooks skillfully.

Also, when removing hooks or replacing them in a different position, you can pick up the nails with your fingertips and pull them out if the wall is a fragile wall like plasterboard, but if there are too many hooks, your fingertips will hurt. There was a problem in that the hook could not be removed or replaced in a different position.

Furthermore, if you use the insect pin driver mentioned above,
Although there is no danger of hurting the fingertips even if there are a large number of hooks, there is a drawback that it is necessary to switch the front and back of the hand each time the hooks are replaced, which impairs the efficiency of work.

Therefore, the present invention was developed based on the above-mentioned circumstances, and it is possible to quickly attach, remove, and replace hooks to fragile walls without hurting the fingertips, and also to provide a nail that does not cause damage to fragile walls. The purpose of this invention is to provide a pushing tool.

[Structure of the idea]

(Means for Solving the Problems) A nail pushing tool according to the present invention for achieving the above-mentioned object has a hollow part in the body, and a step part with a through hole narrower than the hollow part at the tip of the body. A cylindrical body with a flange that engages with the stepped part is loosely fitted into the through hole, and the cylindrical body is biased in a direction protruding from the body by a spring provided in the cavity, and the body is A nail pushing tool in which a metal core fixed therein is inserted into a cylindrical body is characterized in that a concave notch is provided on the inner circumferential surface of the tip of the cylindrical body, intersecting the longitudinal direction of the cylindrical body.

(Example) An example of the nail pushing tool according to the present invention will be specifically described with reference to the drawings.

The body 1 has a substantially cylindrical base 2 and a conical tip 3 screwed together, and the body 1 has a cylindrical cavity 4 extending from the base 2 to the tip 3.
A through hole 5 is provided in the. This through hole 5 is the hollow part 4
It is longer and communicates with the cavity 4 via the step 6.

A cylindrical body 7 is loosely fitted into the through hole 5, and has a flange 8 at the rear end of the cylindrical body 7 that engages with the stepped part 6.
The cylindrical body 7 is urged in the direction, the flange 8 engages with the stepped portion 6, and the cylindrical body 7 protrudes from the body tip 3 so as not to escape. The cylindrical body 7 is configured to completely enter into the body 1 by contraction of the coil spring 9.

Further, a core metal 10 that slightly protrudes from the fuselage tip 3 is fixed in the fuselage base 2, and the core metal 10 protrudes into the cylinder body 7, so that the cylinder body 7 protrudes more than the core metal 10. , the nail can be inserted into the cylindrical body 7 from the distal end side.

Further, a recessed notch 21 is provided on the inner circumferential surface of the tip of the cylinder 7 in a direction intersecting the longitudinal direction of the cylinder 7, that is, half a circumference in the circumferential direction, and an edge 22 on the tip side of the recessed notch 21 is provided inside. It is formed into a wedge-shaped cross section with a sharp point on the circumference.

The pushing tool of the present invention is constructed as described above, and when attaching the hook 13 to the wall 14, a nail is inserted into the cylindrical body 7 of the pushing tool of the present invention, and the hook is placed at a desired position on the wall 14 as shown in FIG. 13, place the tip of the cylinder 7 on the nail hole 12 of the hook 13,
Hold the body 1 and press it against the wall 14.

At this time, the cylinder 7 retreats into the body 1 while holding the nail 15 so that it does not bend, and the core bar 10 fixed to the body 1 gently pushes the nail 15 from the nail hole 12 into the wall 14. .

When removing the hook 13, insert a part of the head of the nail 15 into the recessed part 21 as shown in FIG. Gently pull out 15. Here, since the hook 13 described above is almost always attached to a weak wall such as a plasterboard, the nail 15 can be removed relatively easily.

Furthermore, when changing the hook 13 to a different position on the wall 14 (including when attaching the hook 13 incorrectly), pull out the nail 15 from the wall 14 with the original pushing tool, remove the hook 13 from the wall 14, and then remove the hook 13 from the wall 14. Simply move it to the correct position on the wall 14, leave it there, and then push the nail 15 into the wall 14 along the nail hole 12 of the hook 13 using the original pushing tool. that time,
Since there is no need to change hands between pushing in and pulling out the nail 15, the work can be done efficiently.

[Effect of idea]

The nail pushing tool according to the present invention has a core metal for pushing the nail fixed to the body as described above, and a cylindrical body that holds the nail from its periphery when pushing the nail in, and is attached to the body so that it can move forward and backward but cannot be detached. This allows you to quickly and accurately drive multiple nails into a weak wall without hurting your fingertips. Moreover, the fragile walls will not be damaged at this time.

In addition, since the proposed pushing tool has a recessed part on the inner circumferential surface of the tip of the cylindrical body that can lock a part of the nail head, it is possible to remove a large number of nails pushed into a fragile wall with the tip of a finger. It can be pulled out quickly without causing any damage, and unlike conventional insect pin drivers,
You can push in and pull out nails without having to switch hands.

Therefore, the pushing tool of this invention can be used by interior construction contractors, etc., to quickly attach and remove a large number of hooks to fragile walls, or to replace them in different positions, and the finished product is also in good condition. It has the following effects.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the nail pushing tool according to the present invention, Fig. 2 is an enlarged sectional view of the tip of the cylindrical body, Fig. 3 is a front view of the tip of the cylindrical body, and Figs. 4 and 5 are of the present invention. FIG. 3 is a cross-sectional view of the main parts of the pushing tool showing how it is used. 1...Body, 4...Cavity, 5...Through hole, 6...
... Stepped portion, 7 ... Cylindrical body, 8 ... Flange, 9 ... Spring, 10 ... Core bar, 21 ... Concave cutout.

Claims (1)

[Scope of utility model registration request] The body 1 has a cavity 4, a through hole 5 which is narrower than the cavity is provided at the tip of the body and communicates with the cavity through a step 6, and the through hole has a flange 8 that engages with the step. The cylindrical body 7 is loosely fitted, and the cylindrical body is biased in the direction of protruding from the body by a spring 9 provided in the cavity, and the core bar 10 fixed in the body is pushed into the cylinder by a nail pushing tool inserted into the cylindrical body. A nail pushing tool characterized in that a recessed notch 21 intersecting the longitudinal direction of the cylindrical body is provided on the inner circumferential surface of the tip end of the body.