WO1995034410A1

WO1995034410A1 - Draw tool for article fixation tool

Info

Publication number: WO1995034410A1
Application number: PCT/JP1995/001185
Authority: WO
Inventors: Yoshimichi Okawa
Original assignee: Yoshimichi Okawa
Priority date: 1994-06-16
Filing date: 1995-06-14
Publication date: 1995-12-21
Also published as: JPH081546A; AU2682295A

Abstract

A draw tool for article fixation tools comprises a rectangular base plate supported on a stationary surface of an article, two side plates provided upright along opposed major sides of the base plate, a draw nail body adapted to be guided slidably over a predetermined distance in a front area between the side plates in a direction perpendicular to the base plate, a fulcrum shaft disposed rearwardly of the draw nail body to extend between the side plates, and a lever supported swingingly on the fulcrum shaft and having an acting portion, of which a tip end provides a smoothly arcuate surface adapted to come into contact slidingly with the draw nail body, and an operating portion which extends rearward over a large extent.

Description

Incense

Technical field for pulling out fixtures

TECHNICAL FIELD The present invention relates to a pull-out tool for an article fixing tool such as a nail or an anchor bolt. Background art

As a conventional nail puller, a tool called an L-shaped bar with a tip is used. This is an application of leverage, but the corner of the L-shape becomes the fulcrum, and the point where the nail is sandwiched becomes the action point.

However, because the distance between the fulcrum and the point of action is constant, the nail will bend to the handle side of the burl when pulled out.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a puller in which a distance between a fulcrum and an action point automatically moves, and a fixing tool such as a nail is pulled out in a length direction thereof so that a bending force is not generated. Disclosure of the invention

In order to solve the above problems, the configuration of the present invention is as follows. That is, the first configuration is a rectangular base plate supported on an article fixing surface, two side plates erected along opposing long sides of the base plate, and the base plate at a front portion between the side plates. A pulling claw pot guided slidably at a fixed distance in the direction perpendicular to the shaft, a fulcrum shaft stretched between the sides behind the pulling claw body, and movably supported by the fulcrum shaft. In this case, the operating portion includes a smooth extended arcuate surface, which is in sliding contact with the pull-out claw body, and the operating portion includes a long elongated rear portion.

In the second configuration, in addition to the first configuration, a vertically long strip is provided at a position facing the front of the side plate. A lit is provided, and a guide projection slidably fitted to the slit is provided on the pull-out claw body.

The third configuration is characterized in that, in addition to the first or second carding, the pulling claw body is provided with an opening in which the operating portions of the levers are displaceably fitted to each other.

The bifurcated portion of the action portion of the pull-out claw body is inserted under the protruding head of the shaft, and the upper end of the outer cylinder is pressed through the circle by the base plate. Then, when the operating part of the lever is pushed down to the tip, 外 is strongly pulled upward while the outer cylinder remains as it is. At this time, the arc-shaped surface of the lever and the lower surface of the opening of the claw body make smooth sliding contact with each other, and the change in the distance between the fulcrum axis and the point of application of the force of the lever operating portion smoothly changes. Correspondingly, the force that bends the shaft does not work.

According to the first configuration of the present invention, the fixture is pulled out in its length direction, and no bending force is applied.

With the second configuration, in addition to the effects of the first configuration, the sliding guide of the pulling-out claw body is reliable and can be easily manufactured by press working.

With the third configuration, in addition to the first or second configuration, the pulling claw body can withstand a strong bow I punching force and can be easily manufactured by press working. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a right side view of one embodiment of the present invention.

FIG. 2 is a front view of one embodiment of the present invention.

FIG. 3 is a perspective view of the pull-out claw body.

FIG. 4 is a bottom view of FIG.

FIG. 5 is an explanatory diagram of a use state of the present invention.

FIG. 6 is a longitudinal sectional view of FIG. FIG. 7 is a longitudinal sectional view in a used state. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described with reference to an embodiment shown in the drawings. _{C In the} puller 10 according to the present invention shown in FIGS. 1, 2, 3, and 4, a rectangular base in plan view supported on an article fixing surface Two side plates 12 and 12 are erected along opposing long sides (left and right sides) of the plate 11 (the left and right sides in FIG. 4 are the front and rear sides and the upper and lower sides are the left and right sides). At the center of the front side of the base plate 11, a notch 11a for hooking the head of the fixture is provided. The side plate 1 2 has a short L-shape when viewed from the left and right sides, and tie bolts penetrating both side plates near both ends of the lower piece 1 2a and the upper part of the upper piece 1 2b. The space between them is maintained by the penetrated spacer cylinder 16. In addition, a vertically long slit 12c is provided in the front portion of the side plate (the left side in FIG. 2) at an opposing position.

In FIGS. 2 and 3, the pull-out claw body 13 is slidable in the vertical direction (orthogonal direction) at a fixed distance from the base 11 at the front of the side gap 12.2.12. You will be guided. That is, a rectangular plate-shaped main body 13b is formed above the hook-shaped acting portion 13a, and guide projections 13c at the left and right ends (left and right in FIGS. 2 and 3) are attached to the slit 12c. Sliding fit. These are integrally formed by press forming from one flat plate. Further, the main body 13b is provided with a vertically long rectangular opening 13d in which an action portion 15a of a lever 15 described later is displaceably fitted to each other. The hook-shaped acting portion 13a has a notch 13e for inserting a fixture such as a nail below the head, and has a bifurcated shape.

A fulcrum shaft 14 composed of a bolt extends right and left between the upper pieces 12 b of the side plates behind the pulling claw body 13.

A lever 15 is swingably supported by the fulcrum shaft, and the working portion 15a in front of the fulcrum shaft 14 has a smooth arcuate surface 15 with a smooth tip, and is pulled out. The engaging portion 13d is engaged with the opening 13d of the pawl body, and the operating portion 15c behind the fulcrum shaft 14 extends rearward and long.

FIGS. 5, 6, and 7 show an example of an article fixing tool (developed by the present inventors) in which the pull-out tool 10 is used. The outer cylinder 1 is made of steel and has a reduced diameter portion lb at the tip (lower end) of the cylindrical main body 1a. The shaft 2 is made of steel and has a countersunk head 2b with a driver groove at the end (upper end) of the rod-shaped main body 2a inserted inside the outer cylinder 1, and a male screw 2c near the end (lower end). The female screw member 3 is screwed to the male screw 2c near the tip of the shaft. A steel retaining member 4 is separately fixed to the female screw member 3, and a plurality of pointed radiating legs 4b centering around the center of the annular portion are formed at the distal end from the circular portion 4a.

The case where the waterproof sheet is laid on the surface of the ALC base material and fixed on the roof of a concrete building is explained above. In FIGS. 5 and 6, the first and second sheets Bl and B2 are laid on the base material A, and then a pilot hole H is drilled. Insert the shaft 2 into the outer cylinder 1 with the center of the disc C as the holding plate passing through the shaft 2 of the fixture, and insert the male screw 2 c at the tip of the shaft into the female screw member 3 to which the retaining member 4 is fixed. Screw. At this time, the radial leg 4b of the retaining member is in contact with the reduced diameter portion lb of the outer cylinder in a closed state. In this state, insert into prepared hole H. At this time, with the upper end of the outer cylinder almost facing the upper surface of the seat B2, the screwed portion of the shaft 2 is provided between the lower end of the shaft 2 and the bottom of the pilot hole H.

Below the head 2 b of the protruding shaft, the working part of the pull-out claw body 13

Insert the forked part of 13a, and press the upper end of the outer cylinder 1 with the base plate 11 via the disk C. Then, when the operating portion 15c of the lever is pushed down to the distal end, the outer cylinder 1 is kept as it is, and the shaft 2 is forcibly lifted upward. At this time, the arcuate surface 15b of the lever working part 15a and the lower surface of the opening 13d of the claw body 13 make smooth sliding contact, and the force of the fulcrum shaft 14 and the lever working part 15a Of the ffl point, smoothly responding to the engraving distance of the question, 轴 2 also bends No power works.

Also, as shown in Fig. 7, the retaining member 4 is forcibly pushed up, and the radiating leg 4b is guided by the outer cylinder reduced diameter portion 1b and opens radially to the upper end diagonally to the outside in the radial direction. The base material A gets into the layer. At this time, the radiating legs penetrate into the underlayer in order from the pointed tip, so that they penetrate the eyebrows without unnecessarily breaking the layer.

Next, when the shaft 2 is screwed forward, the female screw member 3 is in a fixed state, so only the shaft 2 advances downward, and the shaft head 2 b presses the upper surface of the disk C to seat the shaft. Fix B2. Next, the reinforcing disk sheet E is attached over the shaft head 2b with an adhesive.

In addition to the above, the pull-out tool of the present invention is widely used for pulling out fixing tools such as ordinary nails and anchor bolts.

The present invention is not limited to the examples and embodiments described above, and includes various modifications without departing from the spirit and scope of the claims.

Claims

The scope of the claims

1. a rectangular base plate supported by an article fixing surface, two side plates erected along opposing long sides of the base plate, and a front portion between the side plates with respect to the base plate. A pull-out claw body slidably guided at a predetermined distance in the orthogonal direction, a fulcrum shaft stretched between the side plates behind the pull-out claw body,

The operating portion includes a lever that is swingably supported by the fulcrum and has a smooth arcuate surface at the tip of the operating portion, that is in sliding contact with the pulling claw body, and that has an operating portion that extends rearward. Fixture puller to do.

2. A side-to-side front portion is provided with a vertically elongated slit at an opposing position, and a guide projection slidably fitted to the slit is provided on the pull-out claw body. Pull-out tool for the product fixture.

3. The pull-out tool according to claim 1 or 2, wherein the pull-out claw body is provided with an opening in which the action portions of the lever are displaceably fitted to each other.