JPS62858Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a staple nail driving hammer used when wiring indoor wires with staple nails.

Conventionally, for driving staple nails, a staple nail driving tool is known in which a plastic staple mold with a groove for holding the staple nail is attached to the end of the handle of a hammer. When using a conventional staple nail hammer, the staple nail is held in the staple nail mold, and the hammer is strongly pressed against the indoor wire to be installed for temporary hammering, but the staple nail does not fall off. For this reason, it is extremely labor-intensive to use a hammer to drive in the wiring when the area to be laid is in a narrow corner or the material into which the staple nail is driven is plywood, a hard new building material. It often happens that the staple nail falls out.

This invention takes this point into consideration, and the main spring, hammer,
A cylindrical casing that houses the trigger and center rod is installed inside the handle of the hammer, and by using the repulsive force of the main spring, the trigger is activated and the hammer is used to deliver a powerful blow to the staple nail holder attached to the center rod. To provide a hammer for driving a staple nail that can apply a force.

The stapling nail driving hammer of the present invention has a cylindrical housing inside the handle of the hammer, which has one end closed and the other end opened with an edge, and has a step on its inner circumferential wall. The center rod, which is inserted from the direction of the open edge of the housing, has a base at its end for fixing the staple nail holder, a stop ring at its center for stopping at the edge of the housing, and a center rod that is inserted from the direction of the open edge of the housing. A guide ring that is close to the other end of the rod and is guided in contact with the inner circumferential wall of the housing, and a return spring is provided between the stop ring and the guide ring, and a cylindrical shape that contacts the other end of the center rod. The hammer and the main spring that contacts the hammer are stored. At the position where the hammer and the end of the center rod touch, a hole is drilled in the hammer along the center axis to insert the end of the center rod, and a semi-cylindrical trigger is housed in the hammer perpendicular to the hole. The trigger is housed in the through hole by a leaf spring, and a hole with the same diameter as the hammer hole is provided in the center of the trigger.

An embodiment of the staple nail driving hammer of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of the staple nail driving hammer of the present invention. This hammer for driving staple nails is provided with a staple nail holding part 14 at the end 12 of the handle 10 of the hammer, and a cylindrical housing 16 made of hard and easily machined metal is built in the handle 10.
The casing 16 is open at one end 18, has an edge 19 at the other end, and has a step 20 on the inner circumferential wall in the center thereof. Here, the cylindrical housing 16
The step 20 on the inner circumferential wall can be constructed by connecting a tubular body having a radius slightly different from the central axis of the housing 16. In addition, by other processing methods,
For example, a step may be provided by drawing the tubular body. Furthermore, the housing 16 can be constructed by fixing a pre-molded tubular body having the edge 19 to a tubular body having a step on the inner circumferential wall with screws in the portion having the opening provided with the edge 19 .

FIG. 2 shows the main components of the staple nail driving hammer of the present invention housed in the housing 16.
The center rod 22 inserted through the opening is made of a steel rod. The center rod 22 transfers the driving force to the staple holding portion 14.
It is given to At one end of the center rod 22 is a base 24 for fixing the staple nail holder 14.
Install. The staple retainer 14 is typically molded from reinforced polyester resin and is provided with a groove for retaining the staple. A staple nail can be easily held by pushing the stem of the staple nail into the groove with the nail portion facing outward. The staple retainer 14 is secured to the base 24 in any suitable manner. A stop ring 26 is fixed to the center of the center rod 22. The stop ring 26 abuts against the edge 19 of the housing 16 and stops the movement of the center rod 22 at this edge 19.
A guide ring 28 is movably fitted to the center rod 22 near the other end 32 of the center rod 22 . The outer periphery of the guide ring 28 has a size that contacts the inner circumferential wall of the housing 16 with a large radius that forms the step 20, and serves to guide the movement of the center rod 22 within the housing 16. A return spring 30 is provided between the stop ring 26 fixed to the center rod 22 and the guide ring 28 movably fitted.
is fitted, and the return spring 30 is compressed against the stop ring 26 against the movement of the center rod 22 during driving, and then serves to return the center rod 22 in the opposite direction. End 32 of center rod 22 contacts hammer 34 . Contact with the hammer 34 causes the main spring 36 to be stored near the closed portion 18 of the housing 16 .

Figure 3 shows the hammer 34, trigger 38 and leaf spring 4.
8. FIG. The hammer 34 is a cylindrical steel member housed within the cylindrical housing 16.
A hole 42 into which the end 32 of the center rod 22 is inserted is formed in the hammer 34 in the direction of the center axis of the hammer 34 from a portion in contact with the end 32 of the center rod 22 . Further, the hammer 34 is provided with a through hole 44 for accommodating the trigger 38 from a direction perpendicular to the hole 42. A semi-cylindrical trigger 38 machined from hard metal is housed in the through hole 44, and a leaf spring 48 is curved to close one end of the through hole 44.
is brought into contact. The leaf spring 48 connects the trigger 38 to the housing 1.
It acts so as to press against the inner circumferential wall of 6. trigger 3
8 has a hole 4 with the same diameter as the hole 42 of the hammer 34.
6 is provided. Initially, the trigger 38 is in contact with the inner peripheral wall of the housing 16 having a large radius, and in this state, the hole 46 of the trigger 38 does not merge with the hole 42 of the hammer 34. Therefore, the end 32 of the center rod 22 is connected to the trigger 3
It is stopped by 8. When the staple nail holder is brought into contact with the object and force is applied to the stud, the hammer 34 moves within the housing 16 while compressing the main spring 36. The trigger 38 moves together with the hammer 34;
By passing through the step 20 and coming into contact with the inner circumferential wall having a small radius, it moves in the through hole 44 toward the center of the hammer 34 against the leaf spring 48 . As the trigger 38 moves, the hole 46 of the trigger 38 and the hole 42 of the hammer are brought together, and the end 32 of the center rod 22 is fitted into the hole of the hammer. In this state, the trigger 38 is activated. The main spring 36 has a hammer 3 attached to the center rod 22.
The return spring 30 is a spring that is compressed by the movement of the center rod 22 when the center rod 22 receives a repulsive force from the hammer 34. , is weaker than the main spring, the wire diameter of the spring wire is approximately one-half that of the main spring, and the spring diameter is also small.

The method of using the staple nail driving hammer of the present invention will be explained.

First, insert the staple nail into the staple nail holder, grasp the handle of the staple nail driving hammer with your hand, and bring the staple nail into contact with the location where the indoor wire is to be wired. Hereinafter, the object in contact will be referred to as a target object. When the staple nail driving hammer is pushed into the staple nail by gradually applying force, the hammer 34 is pushed by the center rod 22 and moves within the housing 16 while compressing the main spring 36, causing the trigger 38 to release the hammer 34. When the inner circumferential wall with a smaller radius comes into contact with the inner circumferential wall with a smaller radius due to the movement, the hole 46 of the trigger 38 and the hole 42 of the hammer 34 match, and the end 3 of the center rod fitted into the hole 42
2 and the hole 46 of the trigger 38 match. The positional relationship between the hammer 34 and the end portion 32 of the center rod 22 in this state is shown in FIG. 4a. As a result of the alignment between the end 32 of the center rod 22 and the hole 46 of the trigger 38, the force compressing the main spring 36 from the center rod 22 via the hammer 34 is released, causing the main spring 36 to rebound, causing the hammer 34 to rebound. As a result, a large driving force is applied to the staple nail at the tip of the central rod 22, and the staple nail is driven into the object. Hammer 3 with main spring 36 rebounding
4 and the end 32 of the center rod 22 are shown in Fig. 4b.
Shown below. The center rod 22 does not jump out of the housing 16 because the stop ring 26 stops at the edge 19 of the housing 16.

After the staple is driven into the object, the center rod 22 returns the trigger 38 and hammer 34 to their initial positions by the repulsive force of the return spring. Of course, in this state, the hole 46 of the trigger 38 and the hole 42 of the hammer are connected to the trigger 3.
It is closed by moving 8. The staple nail driving hammer of the present invention triggers the repulsive force of the main spring 36.
As a result of this movement, the staple nail of the staple nail holder 14 can be strongly driven into the object because it is applied directly to the center rod 22 via the hammer 34.

As explained above, the staple nail driving hammer of the present invention can drive staple nails extremely efficiently by effectively utilizing the repulsive force of the main spring, so the benefits are extremely large.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the staple nail driving hammer of the present invention, and Fig. 2 shows the main components housed in the casing installed in the handle of the staple nail driving hammer of the present invention. Figure 3 is a perspective view showing the hammer, trigger, and leaf spring, Figure 4a is the relationship between the hammer and the central axis before the trigger is activated, and Figure 4b is the relationship between the hammer and the central axis after the trigger is activated. It is a figure showing the relationship with a central axis. DESCRIPTION OF SYMBOLS 10... Hammer handle, 14... Step pull nail holding part, 16... Housing, 20... Step on peripheral wall within the housing,
22... Center rod, 26... Stop ring, 28... Guide ring, 30... Return spring, 32... End of center rod,
34...hammer, 36...main spring, 38...trigger.

Claims (1)

[Scope of Claim for Utility Model Registration] A staple nail driving hammer with a staple nail holding portion provided at the end of the handle of the hammer, with one end 18 closed within the handle and an edge 19 at the other end. A cylindrical casing 16 is provided and opened and has a step 20 on the inner peripheral wall, and a center rod 22 inserted from the open edge 19 of the casing 16 has a staple nail holding portion at its end. a base 24 for fixing the casing 16; a stop ring 26 in the center thereof for stopping at the edge 19;
a guide ring 28 that contacts and guides the inner peripheral wall of the center rod; a return spring 30 is provided between the stop ring 26 and the guide ring 28; a cylindrical hammer 34 that contacts the end 32 of the center rod 22; Main spring 3 in contact with hammer 34
6, and a hole 42 drilled along the central axis of the hammer 34 at a position where the hammer 34 touches the end 32 of the center rod 22, and a hole 4 of the hammer 34.
A through hole 44 for housing a semi-cylindrical trigger 38 is provided perpendicular to the trigger 38, and the trigger 38 is housed in the through hole 44 with a leaf spring 48.
2. A staple nail driving hammer characterized by having a hole 46 having the same diameter as 2.