JP3053267U - Hammer - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a hammer capable of giving a plurality of impacts to an object with one tap. SOLUTION: In a hammer 1 in which one end of a head 3 is attached to one end of a handle 2, a housing hole 4b is provided in the head 3 in the axial direction from the other end to one end, and one end is attached to the handle 2. The head body 4, the plurality of weights 5 accommodated in the accommodation hole 4b so as to be movable in the axial direction, the abutment member 7 abutting against the object, and the closing hole 6b abutting the weight 5 with the accommodation hole 4b. And a connecting member 6 for connecting the contact member 7 to the head main body 4.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a hammer for hitting a form to compact the concrete when the concrete is poured into the form.

[0002]

[Prior art]

 Usually, a rod-shaped vibrator, a wall vibrator or a mallet is used as a tool for compacting concrete or the like poured into a formwork. When casting concrete on a high part of a wall, the space inside the formwork is narrow, and reinforcing bars are arranged vertically and horizontally in the space inside the formwork, or support parts of the formwork are placed. Because of this, it is difficult to properly compact concrete using a vibrator, so while using a mallet to strike the formwork manually, the concrete is compacted based on changes in the reverberation sound. ing.

[0003]

[Problems to be solved by the invention]

 However, hitting the formwork with a mallet has the disadvantage that only one impact can be given to the formwork with a single hit of the mallet.

The present invention has been made to solve the above-mentioned inconvenience, and provides a hammer that can apply a plurality of impacts to an object with one tap.

[0005]

[Means for Solving the Problems]

 The present invention provides a hammer in which one end of a head is attached to one end of a handle, the head has a head body, an accommodation hole is provided in the axial direction from the other end to one end, and one end is attached to the handle. It comprises a weight accommodated in the accommodation hole so as to be movable in the axial direction, an abutting member for abutting against the object, and a connecting member for connecting the abutting member to the head main body. Then, the connecting member is provided with a closing portion for closing the receiving hole and abutting against the weight, further providing a plurality of weights, and further, the handle, the head body and the backing member are made of wood or wood equivalent. It is preferable that the weight and the connecting member are made of steel, and that the weight and the connecting member are made of steel.

[0006]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a hammer according to an embodiment of the present invention, FIG. 2 is an enlarged longitudinal sectional view of the hammer shown in FIG. 1, and FIG. 3 is an enlarged sectional view taken along line AA of FIG.

1 to 3, reference numeral 1 denotes a hammer, a handle 2 made of wood such as oak or oak, and a cylindrical head 3 having one end attached to one end of the handle 2. It is composed of The handle 2 has a hole 2a on the other end. The head 3 is composed of a head main body 4 made of wood such as oak and oak, a weight 5 made of steel, a connecting member 6 made of steel, and a wood made of oak and oak. The contact member 7 is constituted.

The head main body 4 has a mounting hole 4 a for fixing the inserted handle 2 at one end (rear end), and a housing hole 4 b extending from the other end (front end) to one end in the axial direction. Is provided, and a mounting step 4c is provided on the outer periphery of the other end. The connecting member 6 includes a cylindrical portion 6a into which the mounting step portion 4c of the head body 4 and the mounting step portion 7a of the backing member 7 are fitted inside, and a central portion inside the cylindrical portion 2, The part comprises a closing part 6b which closes the accommodation hole 4b of the main body 4 and which the weight 5 abuts.

The contact member 7 is provided with an attachment step 7 a fitted on the outer periphery of one end (rear end) of the connecting member 6 with the cylindrical portion 6 a of the connecting member 6. The weight 5 is spherical and is accommodated in the accommodation hole 4b of the head main body 4 so as to be movable in the axial direction.

Next, an operation and an operation will be described. First, when the other end side of the handle 2 is gripped and the contact member 7 is hit against the mold, the weight 5 moves to the rear end in the accommodation hole 4b by centrifugal force and stops, and the contact member 7 is stopped. Be beaten. Then, when the abutment member 7 abuts on the mold, the weight 5 abuts the closing portion 6b by centrifugal force and inertia at a predetermined time after the abutment member 7 abuts on the mold. Further, after the weight 5 collides with the closing portion 6b and rebounds, the weight 5 again collides with the closing portion 6b.

As described above, according to one embodiment of the present invention, the weight 5 abuts the closing portion 6b at least once by abutting the abutment member 7 against the formwork. A single impact can be applied to the formwork. Since the closing portion 6b is provided in the connecting member 6 and the weight 5 is abutted, the strength of the portion where the weight 5 abuts can be ensured. Further, since the plurality of weights 5 are provided, the impact given to the formwork by the weights 5 abutting against the closing portion 6b can be increased. Further, since the handle 2, the head body 4 and the backing member 7 are made of wood, and the weight 5 and the connecting member 7 are made of steel, they are light and easy to use.

In the above embodiment, the handle 2, the head body 4 and the backing member 7 are made of wood, but they may be made of plastic having the same mass and hardness. In addition, although the closing portion 6b is provided in the connecting member 6, even if the closing portion 6b is not provided, since the weight 5 abuts against the contact member 7 and rebounds, the same effect can be obtained. Further, although the weight 5 is spherical, the weight may be cylindrical, cylindrical, cylindrical weights having different lengths may be combined, or the weight may be reduced to one.

[0013]

[Effect of the invention]

 As described above, according to the present invention, the weight abuts against the closing portion or the abutment member at least once by abutting the abutment member against the target object. Can be given to the object. Since the closing portion is provided in the connecting member and the weight is abutted, the strength of the portion where the weight abuts can be secured. In addition, since a plurality of weights are used, the impact given to the target object by the collision of the weight with the closed portion can be increased. Further, since the handle, the head main body and the backing member are made of wood, and the weight and the connecting member are made of steel, it is light and easy to use.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a hammer according to an embodiment of the present invention.

FIG. 2 is an enlarged vertical sectional view of the mallet shown in FIG.

FIG. 3 is an enlarged sectional view taken along line AA of FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 hammer 2 handle 2a hole 3 head 4 head main body 4a mounting hole 4b receiving hole 4c mounting step 5 weight 6 connecting member 6a cylindrical section 6b closing section 7 contact section 7a mounting step

Claims (4)

[Utility model registration claims] 1. A hammer in which one end of a head is attached to one end of a handle, wherein the head is provided with an accommodation hole in an axial direction from the other end to one end, and the one end is attached to the handle. A main body, a weight accommodated in the accommodation hole so as to be movable in the axial direction, a contact member that abuts against an object, and a connecting member that connects the contact member to the head main body. And hammer. 2. The hammer according to claim 1, wherein the connecting member has a closing portion that closes the receiving hole and abuts the weight. 3. The mallet according to claim 1, wherein the plurality of weights are provided. 4. The hammer according to claim 1, wherein the handle, the head body, and the backing member are made of wood or plastic having a mass and hardness equivalent to wood. A hammer, wherein the weight and the connecting member are made of a steel material.