JP2000170737A - Deck fixing washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably feed washers one by one to a washer fitting tool with a feed pawl by arranging lugs for providing intervals between stacked washers around washer fixing holes. SOLUTION: A washer 1 is a metal or plastic round or angular plate with the diameter of 70-100 mm, and it is provided with a washer fixing hole 2 at the center, reinforcing circular recess sections 3, 4 around it and a protruded edge 5 for fixing a heat insulating material on the peripheral edge. Three or more lugs 7 protruding the surface side of the washer 1 to the back face side are arranged nearly uniformly around the hole 2 by a press so that the washers 1 have gaps between them without being kept in close contact with each other when the washers 1 are stacked and fed to a washer fitting tool one by one. Uniform gaps are provided between the stacked washers 1, and the washers 1 can be reliably fed to the screw bit section of a washer fixing tool via a feed pawl.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washer for fixing a deck on a roof or a roof of a prefab in the construction field.

[0002]

2. Description of the Related Art Recently, an uneven deck plate has been attached to the roof or roof of a prefabricated building, and the upper surface thereof has been covered with a heat insulating material, and a synthetic resin sheet has been attached to the surface, thereby reducing weight and saving labor. Is attached.

In order to fix the heat insulating material or the synthetic resin sheet to the lower deck plate, a self-drilling screw screw is screwed to the deck plate through a slightly large washer.

For screwing through this deck plate, washers are supplied one by one from a deck plate magazine in which a large number of deck plates are stacked, to a lower portion of a screw bit of a washer attachment, and the washer is fixed at the center of the washer. Screw screws are inserted into the holes and screwed to the lower deck plate.

[0005]

However, when the above-mentioned washers for fixing the deck are laminated, these washers overlap with almost no gap between the washers, and the stacked washers are screwed by a feed pawl into a screw for an automatic washer attachment. It was difficult to feed to the bit portion, and a feed error of the washer occurred.

[0006] For this reason, even though it is a washer attachment capable of saving labor, it is not possible to sufficiently exhibit its performance, and there has been a demand for improvement.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above points, and in order to solve the above problems, a heat insulating material such as urethane foam is screwed onto a deck plate such as a rooftop or a roof. A washer for fixing the deck through the washer, and providing a gap between the washers to be stacked so that the stacked washers can be supplied one by one to the screw bit portion of the washer attachment with a feed claw. An object of the present invention is to provide a washer for fixing a deck, wherein the washer is arranged substantially uniformly around the fixing hole.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A deck fixing washer according to the present invention is a deck fixing washer for fixing a heat insulating material such as urethane foam to a deck plate such as a prefabricated roof or a roof via a screw screw. The protrusions that provide a gap between the washers to be stacked so that the washers can be supplied one by one to the screw bit part of the washer attachment one by one without fail are provided almost uniformly around the washer fixing holes. Features.

The deck fixing washer 1 is a disk or square plate of metal or plastic having a diameter of 70 to 100 mm as shown in FIGS. 1 and 2, and has a hole 2 for fixing the washer at the center thereof. Circular recesses 3 and 4 for reinforcement are provided therearound, and projections 5 for fixing the heat insulating material are provided on the periphery.

3 and 4, the deck fixing washers 1 are stacked and supplied one by one to the washer attachment 6, so that the deck fixing washers 1 do not come into close contact with each other. At least three projections 7 are provided around the washer fixing hole 2 so as to form a gap between the washers 1 so that the front surface side of the washer 1 for fixing the deck is pressed by a press or the like so as to protrude to the back side. are doing.

The projection 7 is, as shown in FIGS. 1 and 2, for example, non-axially symmetric with respect to the washer fixing hole 2 slightly shifted by x from an axially symmetrical position such as a 120 degree angular gap with a radius R. The positions and the pitch circle diameters R at the axially symmetric positions are slightly changed, so that the concave portions 8 on the front side and the projections 7 on the rear side of the deck fixing washers 1 to be laminated are all fitted unless the whole number exactly matches. Since they do not match, it is preferable that a predetermined gap can be reliably formed between the deck fixing washers 1 as shown in FIG.

The amount of protrusion of the projection 7 is 1.0 to 1.0.
It is preferable that the deck fixing washer 1 having a thickness of about 3.0 mm can be reliably sent to the lower portion of the screw bit 10 by the feeding claw 9. If it is less than 1.0 mm, it is difficult to catch on the feed claw 9, and if it is more than 3.0 mm, the deck fixing washers 1 are undesirably bulky when laminated.

As the projection 7, a circular or hemispherical one is preferable because it is easy to manufacture, but it can also be square or notched, and three or more around the washer fixing hole.
Preferably, three deck fixing washers 1 are provided to provide three points support when the deck fixing washers 1 are overlapped.
Although it is preferable that a gap can be uniformly formed around the projection, the shape and the number of the protrusions can be appropriately selected based on the above-described purpose of the present invention.

[0014]

1 to 4 show one embodiment of the present invention. A 35 mm pitch circle is formed around a washer fixing hole 2 at the center of a deck fixing washer 1 made of a steel material having a diameter of 85 mm. From the axially symmetric position, one half of the diameter of the projection 7.
It is formed by pressing three places at non-axisymmetric positions shifted by 5 mm each.

The washer 1 for fixing the deck, in which the protrusion 7 having a diameter of 3 mm protruded 1.5 mm to the back side, is shown in FIG.
And stack them as shown in FIG.
, And feed the screw bit 10 to the lower part of the screw bit 10 using the feed claw 9.
Could be sent. 12 is a deck plate, and 13 is a heat insulating material such as urethane foam.

In particular, as a result of projecting the projections at non-axially symmetric positions, uniform gaps are generated between the laminated deck fixing washers, which is practical.

It is to be noted that the number of the protrusions is increased, the protrusions are arranged in an inner and outer double shape, and it is theoretically possible to completely prevent the protrusions on the rear surface from being fitted into the recesses on the front surface. Can also be.

In the above, the disc-shaped washer for fixing the deck has been described. However, the present invention can be similarly applied to a square-shaped or other shaped washer, and is also applicable to a rooftop, a roof, a wall surface, and other deck plate mounting portions. You can do it.

[0019]

As described above, according to the present invention, a uniform gap is provided between the deck fixing washers to be laminated by the projections, and the deck fixing washers are surely placed one by one via the feed claws. Can be fed to the screw bit portion of the washer fixture.

In particular, the projection of the washer is pressed to the front surface to project the projection to the back side, and the projection of another washer is inserted into the recess of the projection on the front side of the washer, so that the interval between the washers is not lost. By arranging the projections at non-axially symmetric positions as described above, even if the projections are pushed out by a press or the like on the deck fixing washer and project, the projections on the back side fit into the recesses on the front side. Can be avoided almost certainly, a uniform gap is provided between the deck fixing washers to be stacked, and the deck fixing washers are surely fed one by one to the screw bit part of the washer fixing tool via the feed claw. can do.

Further, by arranging the projections at three or more locations in a non-axisymmetrically protruding manner at a height of 1.0 to 3.0 mm, the deck fixing washers can be uniformly laminated at the projections. At the same time, the deck fixing washers can be laminated without becoming too bulky.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view of one embodiment of the present invention,

FIG. 2 is a side sectional view of the above,

FIG. 3 is a side sectional view showing a state in which the above-mentioned deck fixing washers are stacked;

FIG. 4 is an explanatory cross-sectional view of a use state attached to the washer attachment according to the first embodiment.

[Explanation of symbols]

1 ... washer for fixing the deck 2 ... hole for fixing the washer
3 ... Washer attachment 7 ... Protrusion 8 ... Recess
9: Feeding claw 10: Screw bit 12: Deck plate
13 ... Insulation material

Claims (3)

[Claims] Claims 1. A deck fixing washer for fixing heat insulating material such as urethane foam to a deck plate such as a rooftop or a roof via a screw screw, wherein a laminated washer is a screw bit portion of a washer attachment one by one. A washer for fixing a deck, wherein projections providing a gap between washers to be stacked so as to be surely supplied by a feed claw are arranged substantially uniformly around a hole for fixing the washer. 2. A washer is pressed to project a projection on the back side by pressing the front surface of the washer, and a projection of another washer enters a recess on the front surface side of the washer of the projection, so that a gap between the washers does not disappear. 2. The deck fixing washer according to claim 1, wherein the protrusions are arranged at non-axially symmetric positions. 3. The washer for fixing a deck according to claim 1, wherein the projections are arranged at three or more non-axisymmetrical positions so as to protrude to a height of 1.0 to 3.0 mm.