JP2002178275A - Nail puller, interval holder for nail puller and nail pulling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nail puller capable of easily and certainly pulling out a nail driven on a wooden material etc., and pulling out the nail in a straight state with no bending, an interval holder for nail pulling and a nail pulling method. SOLUTION: A holding body 2 to hold a head part b1 on the nail (b) by a support shaft 7 is mounted on the front side of a base body 1 free to revolve, an operating arm body 3 is mounted on the side on the base body and positioned on the other side part of the holding body at an angle, a fulcrum body 4 to make contact with a nail driving surface c1 by a shaft 12 of revolution is mounted on a connecting part of the base body and the operating arm body, and a first spring 5 suspended between the holding body and the base body and to return the holding body to a neutral position is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nail pulling device and a spacing for nail pulling which can pull out a nail struck on a wooden material or the like easily and reliably and pull out the nail in a straight state without bending. It relates to a tool and a method for pulling out a nail.

[0002]

2. Description of the Related Art Conventionally, for example, in the wooden construction industry and the like, a skeleton assembled by using structural members such as vertical members and horizontal members is formed by using a plate member having a predetermined length.
The following work is performed by driving with a nail having a length of 0 mm as a false stitch.

[0003] After performing this operation, the nail must be pulled out to remove the temporary streaks. If the nail is hit at a high position, the nail must be removed as shown in FIG.
As shown in (1), it is necessary to climb using a scaffold 60 such as a stepladder and to operate a crowbar 61 such as a nail puller at an unstable position where the scaffold is poor. for that reason,
The work is difficult to apply and the workability is extremely poor.
It was extremely dangerous because there was a risk of falling from zero.

Further, when the nail 64 to which the structural member 62 and the plate member 63 are fixed is hit to its head 64a, the nail 61 is inserted into the nail head 64a with the locking portion 61a of the crowbar 61 as it is. Therefore, as shown in FIGS. 10 and 11 (a), the engaging portion 61a must be hammered into the space between the nail head 64a and the hammering surface and pulled out. It was troublesome.

In particular, when the nail 64 is pulled out by the burl 61, as shown in FIG. 11 (b), the locking portion 61a makes an arc movement about the fulcrum 61b of the burl 61 as shown in FIG. Thus, the pulled-out nail 64 is bent, is disposable and cannot be reused for the next step, etc. or temporary fixing of a wrong line, is uneconomical, and is formed even if it is used temporarily. The bend must be straightened with a hammer. And other various problems.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems.
A gripping body for gripping the head of the nail is rotatably attached by a support shaft, and an operating arm is attached at an angle to a side of the base located on the other side of the gripping body, so that the base and the operating arm can be connected to each other. By providing a fulcrum body that abuts against the nail striking surface by a rotation shaft at the joint portion, and by providing a first elastic machine that spans the gripper and the base and returns the gripper to the neutral position, An object of the present invention is to provide a nail pulling device, a nail pulling interval holding tool, and a method of pulling out a nail which can pull out a nail struck on a wooden material or the like easily and reliably and pull out the nail in a straight state without bending. The purpose is.

[0007]

Means of the present invention for achieving the above object include a base, and a gripping body for gripping a head of a nail rotatably attached to a front side of the base by a support shaft. An operating arm body attached to the base body at an angle to a side located on the other side of the gripper, and rotatably mounted by a rotating shaft at a joint between the base body and the operating arm body, The nail pulling device includes a fulcrum body that comes into contact with the nail striking surface, and a first punch that hangs over the grip body and the base to return the grip body to a neutral position.

[0008] The gripping body comprises a forked nail support member having an opening on one side, and holding means for holding the pulled nail opposite to the nail support member.

[0009] In the nail-pickup interval holding device which forms a gap between the nail-striking surface and the nail head where the nail-supporting member is engaged, a cylindrical main body is formed. ,
A through hole through which the nail penetrates the main body, an upper flange body provided on the upper side of the main body and abutting on the lower surface of the head of the nail, and a lower side provided on the lower side of the main body and abutting on the hitting surface A lower collar body, wherein in the main body, a gap is formed between the upper collar body and the lower collar body, where a gap is formed in which the nail support member of the nail puller is engaged. .

Further, a gripper for gripping a nail head by a spindle is rotatably mounted on the front side of the base on which the operating arm is mounted on the other side of the base. In a nail pulling device in which a fulcrum body is rotatably attached by a shaft, the gripping body locks a head of a nail that is hammered on the nailing surface, and the fulcrum body abuts on the hammering surface. In this state, the operating arm body is rotated with the fulcrum body as a fulcrum, and a nail is pulled out from a hitting surface at a gripping body that is an action point, and the gripping body is rotated about the support shaft. A method for pulling out a nail, wherein the nail is pulled out substantially perpendicularly to the hitting surface while being maintained substantially parallel to the hitting surface during the step of pulling out the nail.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a nail pulling device, a nail pulling spacing holder and a nail pulling method according to the present invention will be described with reference to the drawings. In FIGS. 1 and 2 and FIGS. 7 and 8, A denotes a nail pulling-out device for pulling out a nail b hammered on an article c such as wood, and a base 1, a holding body 2, an operating arm 3, and a fulcrum. It is basically composed of the body 4, the first ammunition 5, and the second ammunition 6.

The base 1 is made of a rigid material such as metal and is formed in a horizontally long box shape, and corresponds substantially to the driving surface c1 of a nail b made of wood or the like.

The gripping body 2 grips the head b1 of the nail b rotatably attached to the front side of the base 1 by the support shaft 7, and serves as a point of action when the nail b is pulled out.
Then, as shown in FIGS. 2 to 4, a forked nail support member 8 having an opening 8 a on one side and a nail b pulled out opposite to the nail support member 8 are held. Holding means 9
Consists of

Of these, the forked nail support member 8 is a nail b
An inclined receiving surface is provided so as to match the tapered lower surface of the head b1, and the lower surface of the head b1 is supported and engaged by the receiving surface. In addition, the nail b is inserted into the head b1 of the nail b through the opening 8a, so that the nail b can be freely disengaged from the head b1.

The operating arm 3 is mounted on the side of the base 1 located on the other side of the grip 2 at a predetermined length and a predetermined angle α, for example, at a mounting angle of about 45 °. . (See FIG. 1) The operating arm 3 serves as a point of emphasis when pulling out the nail b, and includes an outer rod 3a, an inner rod 3b, and fixing means 10, and these outer rod 3a and inner rod 3b. The arm length can be arbitrarily adjusted by sliding in the length direction of the arm, and the length adjustment position can be fixed by the fixing means 10. A grip 11 is attached to the tip of the inner rod 3b.

The outer rod 3a and the inner rod 3b are formed in the shape of a pipe having a rectangular or circular cross section, and the inner rod 3b is fitted into the outer rod 3a with a gap capable of sliding freely. The operating arm 3 expands and contracts due to the sliding movement of the inner rod 3b. When the operating arm 3 is extended, it is convenient for nail removal work at a high position, and when contracted, it becomes convenient for storage, storage and movement.

The fixing means 10 can be selected from any means such as tightening with a set screw or screwing, a pin and a pin hole, and any means for fixing the inner rod 3b during use and storage. Good.

As shown in FIGS. 2 and 5, the fulcrum body 4 is rotatably mounted on the joint between the base body 1 and the operation arm 3 by means of a rotating shaft 12 so that the nail c can be driven into the striking surface c1. , And serves as a fulcrum when the nail b is pulled out. The contact surface 4a to the hitting surface c1 is provided in an arc shape that forms a motion locus about the rotation shaft 12. The fulcrum body 4 may be formed as a cylindrical roller. In this case, the outer peripheral surface is the contact surface 4a.
Therefore, the support shaft 7 of the gripping body 2 and the rotation shaft 1
2 is disposed so that a predetermined distance X is formed as shown in FIG.

The above-mentioned first ammunition 5 comprises a gripper 2 and a base 1
The gripper 2 is always returned to a neutral position, that is, a position substantially parallel to the lower surface of the base 1, and a coil spring, a leaf spring, or the like is used. When an external force is applied, the gripper 2 becomes rotatable about the support shaft 7 against the pulling force of the first elastic machine 5.

The above-mentioned second ammunition 6 comprises a base 1 and a fulcrum 4
To return the fulcrum body 4 to its original position, using a coil spring, a leaf spring, or the like. When an external force is applied, the fulcrum body 4 is rotatable about the rotation shaft 12 against the pulling force of the second ammunition 6.
Further, the second ammunition 6 is not always necessary when a roller or the like having a circular cross section is used for the fulcrum body 4.

Further, for example, when the article c is temporarily fixed with the nail b, after the predetermined operation is completed, the nail b is pulled out by the nail removing device A according to the embodiment of the present invention, and the article c is pulled out. Must be removed. In this case, FIG.
By using the nail pulling interval holding tool D as shown in (1), a gap L is formed between the nailing surface c1 of the nail b and the head b1 of the nail b so that the nail supporting member 8 for nail pulling engages. As a result, the gripping body 2 can be easily engaged with the head b1 of the nail b.

The main body 20 has a cylindrical shape, a through hole 21 through which the nail b penetrates the main body 20, and a lower surface of the head b1 of the nail b provided above the main body 20. An upper flange body 22 abutting on the b2 and a lower flange body 23 provided below the main body 20 and abutting on the striking surface c1 are provided.
Further, in the main body 20, a gap L is formed between the upper flange body 22 and the lower flange body 23 so that the nail support member 8 for nail removal is engaged.

The lower collar body 23 forms a receiving surface 23a which opposes a predetermined pressing force applied to the head b1 when the lower flange member 23 comes into contact with the hitting surface c1. Is suppressed from being embedded in the article c.

Therefore, the embodiment of the nail puller A and the method for pulling out nails according to the present invention, which are configured as described above, has the following effects. For example, in the wooden construction industry and the like, in a wooden frame construction method, a framework is first formed by structural members such as vertical members and horizontal members. At this time, as shown in FIG. 7, these structural members 30, 30 are temporarily staggered using a plate material c having a predetermined length as an article, and their positions are temporarily held until the next operation is completed. You.

In this false stitching, the structural member 30 and the plate member c are fixed together by using nails b having a predetermined length and being driven together.

When the next operation is completed,
The nail b is pulled out and the plate material c is removed. As shown in FIGS. 2 and 8A, the nail support member 8 of the gripping body 2 is removed.
Is made to correspond to the head b1 of the nail b from the opening 8a, and the head b1 of the nail b nailed to the striking surface c1 of the plate c is locked. Thereby, the head b1 of the nail b
Is in contact with the inclined surface of the upper part of the nail support member 8, and the support state and the contact state are maintained.

Further, in a state where the contact surface 4a of the fulcrum member 4 is in contact with the striking surface c1 of the plate member c, the operating arm 3 is used as a fulcrum with the fulcrum member 4 as a fulcrum as shown by an arrow p in FIG. Rotate in the direction shown.

Then, the operation arm 3 rotates about the rotation shaft 12 and the base 1 connected to the operation arm 3.
Lift up. Accordingly, the holding body 2 is also
With the nail b
Since the supporting state and the contact state of the lower surface b2 of the head b1 and the inclined surface at the upper part of the nail supporting member 8 are maintained, the gripping body 2 rises integrally with the plate material c and the nail b. . Therefore, with this rise, the gripper 2 attempts to maintain its posture in a substantially horizontal state, and the first
Against the base 1 against the pulling force of the base 1.

On the other hand, since the distance X between the support shaft 7 and the rotating shaft 12 is constant, while the support shaft 7 moves from the position indicated by the phantom line to the position indicated by the solid line in FIG. Moving shaft 12
Also try to move. That is, since the contact surface 4a of the fulcrum member 4 tends to change with respect to the striking surface c1, the fulcrum member 4 has the contact surface 4a with respect to the striking surface c1 around the rotation shaft 12 in FIG. It rotates while rolling from the position of the contact start point m shown to the moving point shown in FIG.

For this reason, the nail c pulled out from the plate material c
Is such that the position of the support shaft 7 is corrected so as to move in the vertical direction, and no external force is applied by the gripping body 2 during the process of pulling out the nail b. Maintained always in parallel, the nail b can be pulled out substantially perpendicular to the striking surface c1, as shown in FIGS. As a result, the pulled-out nail b can be maintained in a straight state without bending due to the external force applied, and the nail b can be reused for the next operation or the like.

The nail b pulled out from the plate material c is transferred to the nail supporting member 8 of the gripping body 2 by the head b1 of the nail b.
The holding means 9 opposed to the upper side holds the nail 2 even if the gripping body 2 is inclined and the nail b is likely to fall out from the opening 8a. Thereby, the nail b can be adsorbed. After the nail b is pulled out, it is manually removed from the opening 8a.

In particular, the nail removing device A in the embodiment of the present invention
Is effective for pulling out nails b hit in a high place in the above-mentioned frame. If the inner rod 3b of the operating arm 3 is pulled out and extended and fixed by the fixing means 10, As shown in FIG. 7, the worker can easily stand on a stable place without using a scaffold such as
Can be extracted.

Next, the operation of the nail puller spacing holder D of one embodiment according to the present invention will be described. First, nail b
Through the through hole 21 of the main body 20 in the nail puller spacing holder D.
Insert through.

In this state, when the nail b is driven into the article c with a hammer or the like, the nail b is integrated with the article c and the article c according to the pressing force, for example, embedded in a structural material. Go. The lower collar body 2 attached to the lower side of the main body 20
When the receiving surface 23a in 3 comes into contact with the striking surface c1,
Due to the supporting force of the receiving surface 23a, the nail b and the nail pulling spacing holder D are prevented from being further embedded in the article c at a predetermined pressing pressure.

Accordingly, a gap L between the nailing surface c1 of the nail b and the head b1 of the nail b, that is, the nail support member 8 of the gripping body 2 of the nailing device A is engaged.
The engagement operation of the nail support member 8 with the head b1 of the nail b can be performed easily and quickly, and is particularly suitable for a nail removal operation at a remote position such as a high place. Thus, the nail support member 8 is easily hooked by the formed gap L, and the operability is improved.

Note that this nail pulling interval holding tool D is a nail b
It is not always necessary to use the above-mentioned nail removing device A when pulling out, and the same effect can be exerted even when using a nail removing tool such as a common conventional bar.

[0037]

According to the first and fourth aspects of the present invention, the gripping body for gripping the nail is rotatably provided, so that the rotating motion by the operating arm can be prevented by the gripping. Because it can be converted to linear motion with respect to the body,
The nail supported by the gripper can be pulled out substantially perpendicularly from the striking surface, and the pulled out nail can be kept straight without bending. According to the second aspect of the present invention, since the pulled-out nail is temporarily held by the holding body by the holding means, the nail can be reliably collected without dropping while being pulled close to the hand. According to the third aspect of the present invention, a gap can be formed between the nailing surface and the head of the nail so that the nail supporting member for nailing can be engaged. The nail support member can be easily engaged with the portion, and the nail can be reliably pulled out. It has an exceptional effect.

[Brief description of the drawings]

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

FIG. 2 is a longitudinal sectional front view showing a part of the nail removing device in FIG. 1 in an enlarged manner.

FIG. 3 is a side view showing a grip body of the nail puller shown in FIG.

FIG. 4 is a perspective view showing a main part of a grip body of the nail puller in FIG. 1 as viewed from below.

FIG. 5 is a side view showing a fulcrum body of the nail removing device in FIG.

6 (a) and 6 (b) show one embodiment of a nail puller spacing holder according to the present invention, wherein FIG. 6 (a) is a perspective view and FIG. 6 (b) is a cross-sectional view.

FIG. 7 is an explanatory diagram showing a use state of the nail removing device in FIG. 1;

FIG. 8 is a front view showing each operation state of the nail puller of the nail puller in FIG. 1;

FIG. 9 is a longitudinal sectional front view of a main part showing a state where a nail is pulled out in the nail pulling device in FIG. 1;

FIG. 10 is an explanatory view showing a conventional nail pulling state at a high place.

FIG. 11 is an explanatory view showing each state of a conventional nail removal.

[Explanation of symbols]

 b Nail b1 Head c1 Striking surface D Nail-pulling spacing holder 1 Base 2 Gripping body 3 Operation arm 4 Support point 5 First ram 7 Support shaft 8 Nail support member 9 Holding means L Gap 20 Main body 21 Through hole 22 Top Tsuba body 23 Lower tsuba body

Claims (4)

[Claims] 1. A base, a gripper for gripping a head of a nail rotatably attached to a front side of the base by a support shaft, and a grip on the base located on the other side of the grip. An operating arm body attached at an angle, a fulcrum body rotatably mounted by a rotating shaft at a joint between the base and the operating arm body, and abutting against a nail striking surface; the gripping body and the base A nail clipper, wherein the gripper is returned to a neutral position. 2. A gripping body comprising: a forked nail support member having an opening on one side; and holding means for holding a pulled nail opposite to the nail support member. The nail puller according to claim 1, wherein: 3. A nail-pulling interval holding tool which forms a gap between a nail-striking surface and a head of the nail for engagement with a nail-supporting nail-supporting member. A through hole through which the nail can pass, an upper flange body provided above the main body and abutting against the lower surface of the head of the nail, and an upper flange body provided below the main body and abutting against the striking surface. A gap for engaging the nail support member of the nail puller is formed between the upper flange body and the lower flange body in the main body. Holder. 4. A gripping body for gripping a nail head by a support shaft is rotatably mounted on the front side of the base on which an operation arm is mounted on the other side of the base, and is rotated on the other side of the base. In a nail pulling device in which a fulcrum body is rotatably mounted by a shaft, the gripping body locks a head of a nail that has been hammered on the nailing surface, and the fulcrum body abuts on the hammering surface. In this state, the operating arm body is rotated with the fulcrum body as a fulcrum, and a nail is pulled out from a hitting surface at a gripping body that is an action point, and the gripping body is rotated about the support shaft. A method for pulling out a nail, wherein the nail is pulled out substantially perpendicular to the hitting surface while being maintained substantially parallel to the hitting surface during the step of pulling out the nail.