JP3136657U - Nail extraction device - Google Patents

Abstract

There is provided a nail extraction device in which a nail extracted by a nail extraction operation can be easily detached from a nail head hooking portion.
A nail head hooking portion 12 having a notch 11 for hooking a head 17 of a nail 15 holding an asbestos-containing material 26 formed at a tip portion, and a bent portion 13 at a base portion of the nail head hooking portion 12. A nail extraction device 10 having a nail extraction main body 10a having a handle portion 14 connected thereto via a bar-like portion 16 of a nail 15 in a state of being nipped in a rear intermediate portion of the cut 11 A stopper portion 18 for preventing the stop is provided.
[Selection] Figure 1

Description

The present invention relates to a nail extraction device used when, for example, removing a roof material containing asbestos nailed to a field board, a nail that has stopped the roof material containing asbestos is removed.

For example, as described in Patent Document 1, it has been proposed to use asbestos slate as a roofing material laid under a tile or the like, but in recent years, asbestos has a carcinogenicity and is directed toward elimination. Yes. Since this asbestos slate is generally nailed on a base plate, it was necessary to remove the nail using a nail punch before removing the asbestos slate. However, when the nail that stops the asbestos slate is extracted using this nail extractor, dust is generated, so that the asbestos-containing roof material stopper remover (nail extractor) 50 (as described in Patent Document 2) (See FIG. 3). In this nail punch 50, the portions 52 and 53 located on both sides of a V-shaped cut 51 which is a nail head hooking portion formed at the tip are formed in a flat blade shape, and the tip of the nail punch 50 is placed on the asbestos-containing roof material 55. Prevents biting and prevents the asbestos from scattering. In FIG. 3A, 54 indicates a handle and 56 indicates a nail as an example of a stopper.

And as shown in FIG. 4, it is described in patent document 2 that the cover part 58 which attracts the dust which generate | occur | produces at the time of nail extraction is provided, and the connection tool connected with the hose of a cleaner in the front side of this cover part 58 59a (an example of a connection port) is provided, and the dust generated when the nail is pulled out is sucked with a vacuum cleaner and is not leaked to the outside. The cover 58 is provided with a frame 59, and both ends of the pin 62 inserted into the horizontal hole 61 provided on the front side of the bent portion 60 of the nail extractor 50 are supported by the frame 59 to improve the workability. Yes. Reference numeral 64 denotes a transparent cover supported by the frame 59.

Japanese Patent Laid-Open No. 5-52005 Utility Model Registration No. 3131133

However, as shown in FIG. 3B, when the tip portion of the nail punch 50 is viewed in plan, the V-shaped cut 51 becomes an acute triangle, and when this is used to nail, the V-shaped There is a case in which the bar-like part (straight part) 57 of the nail 56 bites into the cut 51, and the removed nail 56 may not easily come off the V-shaped cut 51.

The present invention has been made in view of such circumstances, and an object thereof is to provide a nail extraction device in which a nail extracted by a nail extraction operation can be easily detached from a nail head hooking portion.

A nail punching device according to a first aspect of the present invention, comprising: a nail head hooking portion having a notch for hooking a head of a nail holding an asbestos-containing material at a front portion; and a base portion of the nail head hooking portion. A nail extraction device having a nail extraction body with a handle portion connected via a bent portion,
A stopper portion for preventing the bar-shaped portion of the nail from being locked in a state of being sandwiched at the back side of the notch is provided at an intermediate position on the back side of the notch.

The nail extraction device according to a second aspect of the present invention is the nail extraction device according to the first aspect, wherein the width of the notch at the tip of the stopper portion is larger than the diameter of the bar-shaped portion of the nail, It is smaller than the diameter of the part.
A nail extraction device according to a third device is the nail extraction device according to the first device, wherein the bottom surface of the nail head latching portion is planar and the tip of the nail head latching portion is a flat blade. The notch is formed in the center.

A nail extraction device according to a fourth aspect of the present invention is the nail extraction device according to the first aspect, wherein the stopper portion is inclined downward toward the front side.
A nail extraction device according to a fifth aspect of the present invention is the nail extraction device according to the first aspect, wherein a cover portion for sucking dust generated at the time of nail extraction is provided around the nail head latching portion, and the cover portion is cleaned. It has a connection port connected to the machine hose.

A nail extraction device according to a sixth aspect of the present invention is the nail extraction device according to the fifth aspect of the present invention, wherein the base side of the nail head latching portion or the bent portion has a long hole in the front-rear direction (a long hole inclined forward). The nail extraction main body and the cover portion are connected by a pin inserted through the horizontal hole.
Further, a nail extraction device according to a seventh aspect is the nail extraction device according to the fifth aspect, wherein a horizontal hole is provided on a base side of the nail head latching portion or the bent portion, and the nail extraction main body and the cover portion are provided. Are connected by a pin that is inserted into the horizontal hole and a bearing hole that is provided in the cover portion and has a long hole in the front-rear direction (including a long hole inclined forward).

The nail removal device according to any one of claims 1 to 7 is provided with a stopper portion that prevents the nail rod-like portion from being locked in a state of being pinched to the inner side of the notch at the inner side of the incision. The rod-shaped part does not cut further into the cut. Therefore, the nail that has come off is simply placed on the notch, and can be easily removed from the nail head latching portion (for example, by vibration or wind).

In particular, in the nail extraction device according to claim 2, the width of the notch at the tip position of the stopper portion is larger than the diameter of the nail rod-shaped portion and smaller than the diameter of the nail head. It can be held securely, and the nail bar does not bite into the cut.
The nail extraction device according to claim 3, wherein the bottom surface of the nail head latching portion is flat and the tip of the nail head latching portion is a flat blade shape, and a notch is formed in the center thereof. The hook does not bite into the asbestos-containing material.

In the nail extraction device according to the fourth aspect, since the stopper portion is inclined downward toward the front side, the head of the nail is placed on this portion, and a pulling force can be applied to the head of the nail when the nail is extracted.
The nail removal device according to claim 5 is provided with a cover portion for sucking dust generated at the time of nail removal around the nail head latching portion, and the cover portion has a connection port connected to the hose of the vacuum cleaner. As a result, the removed nail is sucked into the connection port together with dust.

The nail extraction device according to claim 6 is provided with a horizontal hole which is a long hole in the front-rear direction on the base side or the bent portion of the nail head latching portion, and the nail extraction main body and the cover portion are provided by a pin inserted into the horizontal hole. The nail removal device according to claim 7 is provided with a horizontal hole in the base side or the bent portion of the nail head latching portion, and the nail extraction body and the cover portion are long in the front-rear direction provided in the cover portion. Since it is connected by the pin which penetrates the bearing hole which became the hole, and the horizontal hole, the nail extraction main body can be connected to the cover part so as to be movable in the front-rear direction. Therefore, at the time of nail extraction, if the nail extraction main body is positioned in a state of being retracted with respect to the cover part and the nail extraction operation is performed, even if the rear part of the nail extraction main body is hit with a hammer or the like, the hitting force is not directly applied to the pin. Pin bending can be prevented.
In this way, by connecting the nail extraction body and the cover part, the load applied to the nail extraction body is transmitted to the asbestos-containing roof material through the cover part when removing the nail, and the asbestos-containing material is difficult to break when removing the nail. There is no generation of dust including asbestos that occurs when cracked, and there is an advantage that the working environment is not deteriorated.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIG. 1 (A) is an explanatory view of a nail removal device according to an embodiment of the present invention, (B) is a cross-sectional view taken along the line AA in FIG. 1 (A), and (C) is FIG. BB arrow sectional drawing in FIG. 2, FIG. 2 is a use explanatory drawing of the nail extraction apparatus.

As shown in FIGS. 1A to 1C, a nail extraction device 10 according to an embodiment of the present invention has a nail extraction main body 10a made of steel, and the nail extraction main body 10a has a notch 11 formed at a tip portion. The nail head hooking portion 12 is provided, and a handle portion 14 connected to the base portion of the nail head hooking portion 12 via a bent portion 13 is provided. A stopper 18 that prevents the bar-shaped portion 16 of the nail 15 from being locked in a state of being held in the back of the cut 11 is provided at the middle position on the back of the cut 11. These will be described in detail below.

The bottom surface 19 of the nail head latching portion 12 has a flat shape, and the tip portion of the nail head latching portion 12 has a flat blade shape with a blade angle α of 15 to 40 degrees as viewed in plan in the center. A character-shaped cut 11 is formed. As shown in FIG. 1B, the width w of the tip portion of the nail head latching portion 12 having a flat blade shape is 0.5 to 1 times the width a of the base side of the nail head latching portion 12. It has become. In addition, the cut 11 has a U-shaped inclined surface 20 formed in a plan view at an angle of 20 to 45 degrees with respect to the bottom surface 19 at a portion continuous with the lower end of the cut 11 in the same manner as a normal nail punch. The head 17 of the nail 15 is placed.

A handle portion 14 is provided on the base side of the nail head latching portion 12 via a bent portion 13. The angle between the handle portion 14 and the nail head latching portion 12 is about 85 to 95 degrees. . The bent portion 13 on the base side of the nail head latching portion 12 is formed with a long hole that is long in the front-rear direction, and a horizontal hole 22 having a minimum diameter of 5 to 8 mm is formed. In addition, the horizontal hole 22 may be formed in the base side of the nail head latching | locking part 12, and a cross-sectional circle may be sufficient as a horizontal hole.
Further, a second nail head latching portion having substantially the same structure as that of the nail head latching portion 12 can be connected to the base side of the handle portion 14 via a second bent portion. It can also be used as a nail head hooking portion.

A stopper 18 is provided on the back side of the cut 11 to form the bottom of a U-shaped groove. In this embodiment, the tip of the stopper portion 18 is arcuate, but may be perpendicular to the axis of the notch 11.
The groove bottom of the notch 11 becomes the tip of the stopper portion 18, and its width k is larger than the diameter d of the rod-shaped portion 16 of the nail 15 and smaller than the diameter f of the head portion 17 of the nail 15. As a result, the bar-like portion 16 of the nail 15 does not bite into the cut 11. The stopper portion 18 is inclined downward toward the front side, so that the head portion 17 of the nail 15 is easily placed thereon.

When the nail (including screws) 15 that stops the asbestos-containing roof material (an example of asbestos-containing material) 26 is pulled out using the nail extraction device 10, the notch 11 is caught in the head 17 of the nail 15 and is shown in FIG. In this way, the nail 15 is removed by rotating the handle portion 14 counterclockwise. In this case, since the head 17 of the nail 15 is only placed on the notch 11, the nail removal device 10 is connected to the cover portion 58 via the pin 62 inserted into the horizontal hole 22, as shown in FIG. When the nail head latching portion 12 is covered with the cover portion 58, the removed nail 15 is blown off together with dust generated when the nail is pulled out by an air flow and easily sucked into the connecting device 59a. Is done. This eliminates the need for removing the nail 15 extracted from the nail extraction device 10 after the nail 15 has been extracted.

Next, with reference to FIG. 2, another example using the nail extraction device 10 of the present embodiment will be described.
A cover portion 29 is placed on the nail 15 holding the asbestos-containing roof material 26 so that the nail extraction main body 10a is taken out from the opening portion 28. The cover portion 29 is provided with a connection port 32 that communicates with the cleaner 31 through the dust collecting tool 30. The dust collecting tool 30 has an air inlet 33 and an air outlet 34, and accumulates the dust sent by the vacuum hose 35 in the box 36, and the air from which the dust has been removed passes the vacuum hose 37 from the air outlet 34. To the vacuum cleaner 31. As a result, dust including the nail 15 is not sucked into the cleaner 31. The dust collecting tool 30 collects dust by reducing the wind speed in the box 36, and further removes dust contained by the filter.

Therefore, when the nail 15 is pulled out by using the nail extraction device 10, the removed nail 15 has only its head 17 placed on the nail head hooking portion 12. The air flows to the box 36 and is eventually transported by air. Of course, dust including asbestos generated during the nail extraction operation is also prevented from being scattered by the cover portion 29 and can be recovered.

As shown in FIG. 4 and as indicated by a two-dot chain line in FIG. 1, when the nail extraction body 10a is fixed to the frame 59 sandwiching the nail extraction body 10a, the horizontal hole 22 provided in the nail extraction body 10a. Is a long hole extending in the front-rear direction, and the bearing hole 59b formed in the frame 59 through which the pin 62 inserted through the horizontal hole 22 passes is circular in cross section. Alternatively, the horizontal hole provided in the nail punch main body 10a is a hole having a circular cross section, and the bearing hole of the frame 59 that supports the pin 62 inserted through the horizontal hole is a long hole that is long in the front-rear direction (including the obliquely downward direction). It can also be left.
As a result, the pin 62 is not restrained in the front-rear direction, so that the nail extraction body 10a can be arranged rearward with respect to the frame 59 in a state where the nail extraction body 10a is fixed to the frame 59. However, the impact is not directly transmitted to the pin 62, and the bending of the pin 62 can be prevented. In FIG. 1, reference numeral 40 denotes a cover body, and 41 denotes a connection port (suction port) attached thereto.

Although the said embodiment was demonstrated using the specific number, this invention is not limited to this number, A numerical value can be changed in the range which does not change the summary of this invention.
Moreover, in the said embodiment, a cover part is not necessarily an essential requirement, but this invention is applied also when nailing without performing a cover part.

(A) is explanatory drawing of the nail extraction apparatus which concerns on one embodiment of this invention, (B) is AA arrow sectional drawing in FIG. 1 (A), (C) is BB in FIG. 1 (B). It is arrow sectional drawing. It is use explanatory drawing of the nail extraction apparatus. (A), (B) is explanatory drawing of the extraction tool of the stopper of the asbestos containing roof material which concerns on a prior art example, respectively. It is partial explanatory drawing of the apparatus which extracts the stopper of the asbestos containing roof material which concerns on a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10: Nail extraction apparatus, 10a: Nail extraction main body, 11: Cutting, 12: Nail head hooking part, 13: Bending part, 14: Handle part, 15: Nail, 16: Rod part, 17: Head part, 18: Stopper part 19: bottom, 20: inclined surface, 22: horizontal hole, 26: asbestos-containing roofing material, 28: opening, 29: cover, 30: dust collecting tool, 31: vacuum cleaner, 32: connection port, 33: Air inlet, 34: Air outlet, 35: Vacuum hose, 36: Box, 37: Vacuum hose, 40: Cover body, 41: Connection port, 58: Cover part, 59: Frame, 59a: Connector, 59b: Bearing hole 62: Pin

Claims (7)

A nail head hooking portion having a notch for hooking the head of the nail holding the asbestos-containing material formed at the tip thereof, and a handle portion connected to the base of the nail head hooking portion via a bent portion A nail extraction device having a nail extraction body,
A nail removal device, wherein a stopper portion for preventing the bar-shaped portion of the nail from being locked in a nipped state on the back side of the notch is provided at an intermediate position on the back side of the notch. 2. The nail punching device according to claim 1, wherein a width of the notch at a tip position of the stopper portion is larger than a diameter of the bar-shaped portion of the nail and smaller than a diameter of the head portion of the nail. 2. The nail extraction device according to claim 1, wherein a bottom surface of the nail head latching portion is flat and a tip portion of the nail head latching portion is a flat blade shape, and the notch is formed in the center thereof. Nail extraction device characterized by. The nail extraction device according to claim 1, wherein the stopper portion is inclined downward toward the front side. 2. The nail extraction device according to claim 1, wherein a cover for sucking dust generated during nail extraction is provided around the nail head hooking portion, and the cover has a connection port connected to a hose of a vacuum cleaner. A nail punching device characterized by that. 6. The nail extraction device according to claim 5, wherein a horizontal hole which is a long hole in the front-rear direction is provided on a base side of the nail head latching part or the bent part, and the nail extraction main body and the cover part are the horizontal hole. A nail punching device, characterized in that the nail removal device is connected by a pin inserted through the pin. 6. The nail extraction device according to claim 5, wherein a horizontal hole is provided on a base side or the bent portion of the nail head latching portion, and the nail extraction main body and the cover portion are long in the front-rear direction provided in the cover portion. A nail punching device, wherein the nail punching device is connected by a pin that is inserted into the bearing hole that is a hole and the horizontal hole.

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