JP3243185U - handheld pile driver - Google Patents

Abstract

[Problem] To provide a hand-held pile driver that reduces the burden on a worker in a work environment in which the upper end of a pile is lower than the waist of the worker. A hand-held pile driver according to the present invention comprises a pile driver body and a handle connected to the pile driver body and extending upward. The pile driver main body has a tubular portion and a lid portion provided at the upper end of the tubular portion. The upper end of the handle is located above the lid. [Selection drawing] Fig. 3

Description

The present invention relates to a handheld pile driver.

As for conventional hand-held pile drivers, for example, a prop hammer described in Patent Document 1 is known. The prop hammer described in Patent Literature 1 includes a prop hammer main body and a pair of grips that can be gripped near the shoulders of an operator. A striking part is provided on the bottom side of the post hammer body, and a notch is provided in the post hammer body along the longitudinal direction of the post hammer body.

The prop hammer described in Patent Document 1 can easily extract the prop without the upper end of the prop hammer main body coming into contact with the ceiling or the like when the prop hammer is extracted from the prop hammer body.

Utility Model Registration No. 3218282

However, the pile driver (post hammer) described in Patent Document 1 needs to be used while bending down when the upper end of the pile to be driven is lower than the worker's waist, which is a burden on the worker. rice field.

SUMMARY OF THE INVENTION An object of the present invention is to provide a hand-held pile driver that reduces the burden on the worker in a working environment where the upper end of the pile is lower than the waist of the worker.

A handheld pile driver according to a first embodiment of the present invention includes a pile driver body and a handle connected to the pile driver body and extending upward, wherein the pile driver body includes a tubular portion, and a lid portion provided on the upper end of the tubular portion, wherein the upper end of the handle is located above the lid portion.

A handheld pile driver according to a second aspect of the present invention is the handheld pile driver according to the first aspect, wherein the lid is solid metal.

A handheld pile driver according to a third aspect of the present invention is the handheld pile driver according to the first or second aspect, further comprising an extension portion provided at the upper end of the lid portion and extending upward. , the handle is connected to the driver body through the extension.

A handheld pile driver according to a fourth aspect of the present invention is the handheld pile driver according to the first or second aspect, wherein the handle includes a rod-shaped grip and a lower end of the grip. and a collar.

A handheld pile driver according to a fifth aspect of the present invention is the handheld pile driver according to the first or second aspect, wherein the cylindrical portion has a cylindrical shape.

A hand-held pile driver according to a sixth aspect of the present invention is the hand-held pile driver according to the fifth aspect, wherein the lid portion has a columnar shape with the same diameter as the outer diameter of the cylindrical portion. .

A handheld pile driver according to a seventh embodiment of the present invention is the handheld pile driver according to the third embodiment, wherein the handle includes a rod-shaped grip and a flange provided at the lower end of the grip and

The hand-held pile driver of the present invention reduces the burden on the worker in a working environment where the top of the pile is lower than the waist of the worker.

FIG. 1 is a front view showing the structure of a handheld pile driver 10. FIG. FIG. 2 is a bottom view showing the structure of the handheld pile driver 10. FIG. FIG. 3 is a sectional view showing the structure of the handheld pile driver 10. As shown in FIG. FIG. 4 is an explanatory diagram showing how the handheld pile driver 10 is used. FIG. 5 is an explanatory diagram showing how the handheld pile driver 10 is used.

(First embodiment)
[Structure of handheld pile driver 10]
Below, the structure of the handheld pile driver 10 according to the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing the structure of a handheld pile driver 10. FIG. FIG. 2 is a bottom view showing the structure of the handheld pile driver 10. FIG. FIG. 3 is a sectional view showing the structure of the handheld pile driver 10. As shown in FIG. In addition, in FIG. 3 , the hatched portion shows the cross-sectional structure of the hand-held pile driver 10 .

In this specification, directions are defined as follows. A pile driver body 20 of the handheld pile driver 10 extends vertically. Also, the front-back axis, the left-right axis, and the up-down axis are orthogonal to each other. The upward direction, downward direction, leftward direction, rightward direction, forward direction, and backward direction are defined for convenience of explanation. Therefore, these directions do not have to match the directions in which the hand-held pile driver 10 is used. Further, the upward direction and the downward direction may be interchanged, the left direction and the right direction may be interchanged, and the forward direction and the rearward direction may be interchanged.

In this specification, extending in the front-rear direction includes extending in a direction parallel to the front-rear axis and extending in a direction slightly inclined with respect to the front-rear axis. Extending in the left-right direction includes extending in a direction parallel to the left-right axis and extending in a direction slightly inclined with respect to the left-right axis. Extending in the vertical direction includes extending in a direction parallel to the vertical axis and extending in a direction slightly inclined with respect to the vertical axis.

In this specification, unless otherwise specified, each part of the first member is defined as follows. By front of the first member is meant the front half of the first member. A rear portion of the first member means the rear half of the first member. The left portion of the first member means the left half of the first member. The right portion of the first member means the right half of the first member. By top of the first member is meant the top half of the first member. A lower portion of the first member means a lower half of the first member. The front end of the first member means the front end of the first member. The rear end of the first member means the rearward end of the first member. The left end of the first member means the left end of the first member. The right end of the first member means the right end of the first member. The upper end of the first member means the upper end of the first member. The lower end of the first member means the downward end of the first member. The front end of the first member means the front end of the first member and its vicinity. The rear end of the first member means the rear end of the first member and its vicinity. The left end of the first member means the left end of the first member and its vicinity. The right end of the first member means the right end of the first member and its vicinity. The upper end of the first member means the upper end of the first member and its vicinity. The lower end of the first member means the lower end of the first member and its vicinity.

In this specification, the first member is connected to the second member means that the first member is directly connected to the second member, and that the first member is connected to the first member via the third member. including when connected to

It should be noted that the disclosure is merely an example, and those that a person skilled in the art can easily conceive of appropriate modifications while maintaining the gist of the invention are naturally included in the scope of the present invention. In order to make the description clearer, the drawings may be schematically shown compared to the actual embodiments, but they are only examples and are not intended to limit the interpretation of the present invention.

In addition, in this specification and each figure, the same reference numerals are given to constituent elements that exhibit the same or similar functions as those described above with respect to the previous figures, and redundant detailed description may be omitted.

As shown in FIGS. 1-3, the handheld pile driver 10 includes a pile driver body 20, an extension 30, and a handle 40. As shown in FIGS.

The pile driver main body 20 has a tubular portion 22 and a lid portion 24 . The lid portion 24 is provided at the upper end of the tubular portion 22 . More specifically, the tubular portion 22 has a cylindrical shape. The lid portion 24 has a cylindrical shape. The lid portion 24 is solid. The outer diameter of the cylindrical portion 22 is the same as the diameter of the lid portion 24 . The lid portion 24 and the cylindrical portion 22 are integrally formed. The vertical length of the lid portion 24 is preferably 130 mm or more. This is to improve driving force and durability of the pile driver body 20 . In this embodiment, the vertical length of the lid portion 24 is 135 mm. The material of the pile driver body 20 is, for example, metal. More particularly iron. Moreover, preferably, the vertical length of the tubular portion 22 is about 250 mm. This is to make it easier to insert the pile into the pile driver main body 20 and to prevent the pile from coming off during operation.

The extension portion 30 is provided at the upper end of the lid portion 24 and extends upward. More specifically, extension 30 has a cylindrical shape. The diameter of the extension portion 30 is smaller than the outer diameter of the tubular portion 22 . The material of the extension part 30 is metal, for example. More particularly iron.

Handle 40 has a grip portion 42 and a collar portion 44 . A handle 40 is connected to the driver body 20 . Handle 40 extends upward. A flange portion 44 is provided at the lower end of the grip portion 42 . Collar 44 is connected to the upper end of extension 30 . That is, the handle 40 is connected to the driver body 20 via the extension 30 . More specifically, the grip portion 42 has a rod-like shape. In this embodiment, the grip portion 42 has a cylindrical shape. The outer diameter of the grip portion 42 is larger than the diameter of the extension portion 30 . Also, the flange portion 44 has a hollow disk-like shape. The inner diameter of the flange portion 44 is equal to the outer diameter of the grip portion 42 , and the outer diameter of the flange portion 44 is larger than the outer diameter of the grip portion 42 . The upper end of extension 30 is inserted inside grip 42 and collar 44 . An upper lid 46 is provided at the upper end of the grip portion 42 . The top lid 46 has hooks 48 . An upper end 40 a of the handle 40 is located above the lid portion 24 . Preferably, the vertical distance from the upper end of the handle 40 to the upper end of the lid portion 24 is about 200 mm. The material of the handle 40 is rubber, for example.

[Operation of handheld pile driver 10]
Next, how to use the handheld pile driver 10 will be described. 4 and 5 are explanatory diagrams showing how to use the handheld pile driver 10. FIG.

As shown in FIG. 4 , the worker first inserts the pile 50 into the hand-held pile driver 10 so that the upper end of the pile 50 enters inside the tubular portion 22 . Then, the lower end of the pile 50 is brought into contact with the planned installation site A of the pile 50, and the pile 50 is supported at a predetermined angle with respect to the plane of the planned installation site A. In this embodiment, the planned installation location A is the ground, and the pile 50 is perpendicular to the planned installation location A.

After that, as shown in FIG. 5, the operator grasps the handle 40 and slides the hand-held pile driver 10 upward once and then downward so that the lower surface of the lid portion 24 is aligned with the upper end of the pile 50 . to hit. At this time, the attitude of the pile 50 is maintained. The operator repeats this operation until the pile 50 is fixed to the planned installation location A.

[effect]
The handheld pile driver 10 includes a pile driver body 20 and a handle 40 extending upward. The pile driver main body 20 also has a cylindrical portion 22 and a lid portion 24 . The upper end of the handle 40 is positioned above the lid portion 24 . This allows the operator to operate the handle 40 above the pile driver body 20 (that is, above the pile to be installed). As a result, in a working environment in which the upper end of the pile is lower than the waist of the worker, changes in the posture of the worker are suppressed, and the burden on the worker is reduced.

Lid 24 is solid metal. As a result, driving force and durability of the pile driver main body 20 are improved.

The handheld pile driver 10 further comprises an extension 30 extending upward. The handle 40 is connected to the driver body 20 via the extension 30 . This further suppresses changes in the worker's posture.

The handle 40 has a bar-shaped grip portion 42 and a flange portion 44 provided at the lower end of the grip portion 42 . This makes it easier to operate the handle 40 with one hand.

The tubular portion 22 has a cylindrical shape. As a result, the pile can be easily inserted into the pile driver main body 20, and the pile can be prevented from coming off during operation.

The lid portion 24 has a cylindrical shape with the same diameter as the outer diameter of the cylindrical portion 22 . This makes it easier for the operator's force to be transmitted from the lid portion 24 to the pile.

(Other embodiments)
The handheld pile driver according to the present invention is not limited to the handheld pile driver 10, and can be modified within the scope of the gist thereof.

Note that the hand-held pile driver 10 can be installed on, for example, an inclined surface or a wall surface other than the ground.

The length of the extension portion 30 in the vertical direction may be adjusted. For example, the extension part 30 may be vertically extendable.

10 Hand-held pile driver 20 Pile driver main body 22 Cylinder portion 24 Lid portion 30 Extension portion 40 Handle 42 Grip portion 44 Collar portion 46 Upper lid 48 Hook 50 Pile A Planned installation location

Claims (7)

A pile driver body and a handle connected to the pile driver body and extending upward,
The pile driver body has a cylindrical portion and a lid portion provided at the upper end of the cylindrical portion,
the upper end of the handle is positioned above the lid;
Hand-held pile driver. the lid is solid metal;
A hand-held pile driver according to claim 1. further comprising an extension part provided at the upper end of the lid part and extending upward,
The handle is connected to the pile driver body via the extension.
A handheld pile driver according to claim 1 or 2. The handle has a rod-shaped grip and a flange provided at the lower end of the grip,
A handheld pile driver according to claim 1 or 2. the tubular portion has a cylindrical shape,
A handheld pile driver according to claim 1 or 2. The lid has a columnar shape with the same diameter as the outer diameter of the cylinder,
A handheld pile driver according to claim 5. The handle has a rod-shaped grip and a flange provided at the lower end of the grip,
A handheld pile driver according to claim 3.