JP3045168U - Blades for hand tools - Google Patents

Abstract

(57) [Problem] Since a plurality of recesses are formed between saw blades, the difficulty of work is pointed out, for example, the blades are easily chipped and easily hooked on the root in the soil. A blade (2) is pressed perpendicular to an excavation direction so as to communicate with at least an outer peripheral edge.
are formed, and polishing treatments 2c, 2c,... are obliquely applied to the free end face so as to become gradually sharper according to the cutting edge.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to the improvement of manual tools such as shovels, scoops, hoes, crane or tobikoku, etc.More specifically, during excavation work, light excavation and excavation without excavating roots in the soil. To a useful manual tool blade.

[0002]

[Prior art]

 Conventionally, as such a manual tool, for example, a tool disclosed in Japanese Utility Model Laid-Open No. 63-81958 is known. In the conventional manual tool blade, a blade having a rounded edge is formed in a saw blade shape around the blade, and a number of recesses are arranged between the saw blades at appropriate intervals.

[0003]

[Problems to be solved by the invention]

 However, the blade disclosed in Japanese Utility Model Laid-Open Publication No. 63-81958 has an advantage that it can easily enter the soil, but has a plurality of recesses formed between the saw blades. As a result, it was pointed out that the work was difficult, for example, the blade was easily chipped and easily caught on the roots in the soil.

The present invention has been made in view of such conventional problems and demands, and an object of the present invention is to provide a useful hand tool blade capable of excavating lightly without loosing roots in the soil. Things.

[0005]

[Means for Solving the Problems]

 In order to solve the conventional problems as described above and achieve the intended purpose, the gist of the present invention is to provide a handlebar having a desired shape and a blade protruding from the tip of the handlebar. In the provided hand tools such as shovel, scoop, hoe, bilke or toe mouth, the blades described above are used for hand tools having a blade pressed perpendicular to the digging direction so as to communicate at least with the outer peripheral edge. Exists in the blade.

It is preferable that the blade is polished obliquely with respect to the free end surface so as to become gradually sharper according to the blade edge.

[0007] The blade for a manual tool according to the present invention configured as described above has a configuration in which the blade forms a blade pressed perpendicularly to the excavation direction so as to communicate with at least the outer peripheral edge. And excellent strength.

In addition, the blade is polished in an oblique direction with respect to the free end surface so as to become gradually sharper in accordance with the blade edge, so that the more the blade is used, the more it is worn from the blade edge, so that the blade becomes naturally thinner and sharper. Becomes

[0009]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described with reference to the drawings. In the figure, A is a scoop showing an embodiment of the manual tool according to the present invention, and this scoop A is provided with a handlebar 1 formed in a hollow tubular shape and protruded from the tip of the handlebar 1. The grip 2 includes a blade 2 and a Y-shaped grip portion 3 protruding from a rear end of the handlebar 1.

The handle bar 1 is formed in a hollow tubular shape from an appropriate material such as wood or steel, and an insulating cover (see FIG. 5) made of an insulating plastic rubber or the like is provided on the surface thereof, if necessary. Is done.

The blade 2 is made of a suitable metal material such as steel. As shown in FIG. 2, a connecting pipe 2a for inserting a tip portion 1a of the grip handle 1 described later is connected to the center of the upper end. It is set up.

Further, the blade 2 is formed with streak-like blades 2b, 2b,. These blades 2b are pressed perpendicularly to the direction of digging so as to communicate at least with the outer peripheral edge, and are polished 2c obliquely to the free end surface so as to become gradually sharper according to the cutting edge. , 2c...

On the other hand, the grip portion 3 is made of a suitable material such as a metal material such as steel, wood or hard plastic, and is integrally connected to the rear end of the handle bar 1. According to the above, it may be detachably connected to the handlebar 1.

If necessary, the handle bar 1 and the blade 2 may be connected via a joint member 5 as shown in FIG. The joint member 5 is formed of a hard insulating material such as hard rubber or insulating plastic, and has connecting portions 5a at both ends in the longitudinal direction.

The connecting portion 5a on the distal end side is inserted into the connecting pipe 2a of the blade 2 and is prevented from coming off by caulking through a fastening member 6 such as an insulating rivet. It is.

Further, the connecting portion 5a on the rear end side is inserted into the opening at the front end of the handlebar 1 and, like the attachment to the blade 2, a fastening member 6 such as an insulating rivet. By caulking through, it is firmly retained.

The blade for a manual tool according to the present invention configured as described above has the blades 2 b, 2 b,... Pressed perpendicular to the excavation direction so that the blade 2 communicates with at least the outer peripheral edge. Since the blades 2b, 2b, 2b, ... have excellent strength, they are not easily broken, and the blades 2b, 2b,... …, The more you use it, the more it will wear from the cutting edge and become sharper, making it sharper and cutting the roots in the soil while digging.

If the handle bar 1 and the blade 2 are connected via a joint member 5 made of an insulating material (see FIG. 5), provisional command and ground are provided by the metal blade 2 at the tip during the work. Even if the electric cable or the like inside is cut or broken, it can be insulated by the joint member 5, so that there is no fear of electric shock or the like.

Furthermore, if the handle rubber 1 is covered with the insulating rubber 4 as required, safer insulation becomes possible and hand slippage during work can be prevented.

The blade A for a manual tool of the present invention is not limited to the present embodiment, but can be freely designed and changed within the scope of the purpose of the present invention. Is included. For example, in this embodiment, a scoop is described, but the present invention is not limited to this, and can be applied to a hand tool such as a hoe, a fire extinguisher, a double shovel, a hammer, a crane and the like. Yes, the present invention encompasses all of these.

The blade 2 and / or the grip portion 3 are detachably attached to the handle rod 1 so that the tubular space in the handle rod 1 can be effectively used. It has the advantage that it can store essential items such as flashlights, saw blades, drivers, emergency sets, bandages, radios, etc. necessary in the event of a disaster.

When a blade 2 such as a hoe or a toe mouth is used at the tip, it is preferable to replace the gripping portion 3 with a straight type (not shown) or a butt plug from the Y type. It goes without saying that a notch (not shown) can be formed in the surface of the blade 2 in order to improve the soil removal.

[0023]

[Effect of the invention]

 The present invention is configured as described above, and the blade is formed to have a blade pressed perpendicularly to the excavation direction so as to communicate with at least the outer peripheral edge. This has the effect that it can be used without breaking.

[0024] Further, the blade is polished obliquely with respect to the free end face so as to become gradually sharper according to the cutting edge, so that the more it is used, the more it is worn from the cutting edge, so that it naturally becomes thinner and sharper. This has the effect of improving sharpness and cutting the soil without escaping the roots.

As described above, the present invention can provide a blade for a manual tool that can excavate lightly without excavating roots in the soil during excavation work, and has a simple configuration. Implementing the present invention, such as being able to supply to consumers at a low price suitable for mass production, has enormous practical value.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a scoop as an embodiment of the manual tool according to the present invention.

FIG. 2 is an exploded perspective view of the scoop.

FIG. 3 is a front view of a blade used in the present embodiment.

4 (a) is a rear view of the blade, and FIG. 4 (b) is a sectional view taken along the line II shown in FIG.

FIG. 5 is an exploded perspective view showing another embodiment of the manual tool according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Handle rod 1a Tip part 2 Blade 2a Connecting pipe 2
b Blade 2c Polishing process 3 Gripping portion 3a Connecting portion 4 Insulating cover 5 Joint member 5a Connecting portion 6 Fastening member

Claims (2)

[Utility model registration claims] A shovel, a scoop, and a handlebar having a desired shape, and a blade protruding from a tip of the handlebar.
In a hand tool such as a hoe, a crane or a toy mouth, the blade is formed as a blade pressed perpendicularly to an excavation direction so as to communicate with at least an outer peripheral edge. 2. The manual tool blade according to claim 1, wherein the blade is polished obliquely with respect to the free end surface so as to become gradually sharper according to the cutting edge.