KR200454579Y1 - Resin-made multipurpose shovel with reinforced blade - Google Patents

Abstract

The present invention was designed to be convenient, durable, and conducive to cost reduction by reinforcing the blade of a multi-purpose shovel with a thickness of 3 ~ 5mm, which is made of synthetic resin, without burdening the blade. In the multipurpose shovel 1, which is formed of synthetic resin and has a blade thickness within 3 to 5 mm, the width of the cutting edge portion 1a is wide, and the upper end of both side walls is formed by the bent portion 1b, the blade portion 1a. It is formed to be 7 ~ 9cm in width and 3.5 ~ 5cm in length so as to be attached to the part leading to both side bends (1b) from the tip, and the outer end is formed as an upward bent part (2a) to fit the curved surface of the side wall of the blade, 3 to 4 connecting holes 2d formed on the opposite end of the buried portion 2 ', which is composed of a horizontal bent portion 2c, followed by an upward bent portion 2b, and penetrated up and down, respectively. Serrated projection 2e is formed on the upper circumferential surface of the connection hole 3-4 fasteners (2 ") are formed, and the reinforcement plate (2) made of iron plate having a thickness of 0.7-1.0 mm is closely adhered to the bottom of the blade so that the bottom of the reinforcement plate is exposed to the same height as the blade bottom, and the buried portion (2 ') and the binding part (2 ") penetrates into the blade and joins the reinforcing plate to the injection mold inner surface to be combined, and injection molding to make the reinforcing plate and the blade integral with each other. Shovel

Description

Versatile plastic shovel with synthetic resin shovel

The present invention was developed to be convenient, durable, and cost-effective by reinforcing the blade of a synthetic resin multipurpose shovel that is molded of synthetic resin and keeps the blade thickness of 3 ~ 5mm without burdening the weight. More specifically, the method of injection molding by combining a reinforcing plate to the inner surface of the injection mold so that a thin metal reinforcing plate penetrates from the bottom of the blade to the inside to attach the thin metal reinforcing plate to be reinforced within the range of maintaining the existing blade thickness at the end of the blade. It was developed so that the durability of the blade can be further exerted by attaching the reinforcing plate and attaching the reinforcing plate of the structure in which the reinforcing plate is connected between the bent portions of both side walls at the cutting edge.

The synthetic resin shovel is a synthetic resin product made so that the thickness of the blade part is within the range of 3 ~ 5mm and the blade tip is made wider and flatter than the general shovel so that it can be used to work such as cereals, compost or minerals, aquatic products and snow removal. When the resistance of the blade tip is weak and resisted, there is a problem that it is easily bent and broken, especially when the snow is melted and the ice is rubbed on the frozen part of the blade, the blade tip is fragile and the ice cannot be taken out. There was a defect that was uncomfortable to do

In order to compensate for the above defects, a plurality of holes are formed at the tip of the blade to bury a reinforcement plate to be inserted into the hole, or to cover the outer surface of the tip of the shovel with a reinforcing plate, or to cover the outer edge of the blade with a reinforcement plate and cover it with rivets. It is known to reinforce the blade tip by means of fixing.

However, the preceding measures have a problem that the thickness of the blade is thicker than the existing blade because of the reinforcement plate, so that the blade is thin and weighted, which burdens the worker when using it, and the manufacturing process is complicated, thereby increasing the production price. There was a flaw.

The present invention has been developed to solve the above conventional drawbacks.

The present invention incorporates a metal reinforcement plate thinner than the thickness of the synthetic resin blade blade penetrates from the bottom of the blade to the inside between the bends of the side walls of the blade tip of the synthetic resin multipurpose shovel so that it is integrated into the mold. By attaching to the injection molding by bonding to the unit to be integrally attached, it is possible to reinforce the blade without the thickness of the blade is coarse, it is configured to reinforce the blade while avoiding the burden in terms of weight and price.

In this way, the present invention is a method of penetrating a metal reinforcement plate thinner than the blade thickness into the blade from the bottom of the blade to the inside of the blade at a position leading to both side bent portions 1b of the side from the bottom of the blade portion 1a of the synthetic resin shovel. By reinforcing the gap between the blade tip and the two bent parts by reinforcement plate, it is possible to reinforce the blade's strength without making the blade tip coarse and to remove the frozen part or dense deposits by melting the snow. When hitting frozen or sediment, the edge of the blade is firmly reinforcement and has the advantage of easy hitting.

In particular, the metal reinforcing plate (2) of the present invention is composed of a thin steel plate of 0.7 ~ 1.0mm thickness, the binding portion (2 ") and the buried portion (2 ') formed in the reinforcement plate penetrates into the inner surface from the blade under the blade body and Since the bottom of the reinforcement plate is attached to be exposed to the same height as the blade bottom, the stepped portion does not occur in the attachment portion, and the tooth hole formed along the connecting hole 2d and the circumferential edge of the connection hole constituting the binding portion 2 ". Since the blade body and the reinforcing plate are integrated by the protrusion part 2e and the buried part 2 ', it is possible to attach the reinforcing plate to the blade body without using a separate fastening mechanism such as a rivet, thereby increasing the blade thickness. There is an advantage that can be attached to the reinforcement plate, and because the surface is smooth because there is no protruding part than the blade surface height, the input resistance is small, so it is easy to use and the weight of the blade is greatly increased. Because there are advantages that may make a difference in this without burdening the operator to long term use blades it can be strengthened.

1 is a perspective view of the present invention
FIG. 2 is a cross-sectional view of FIG.
3 is a perspective view of the reinforcing plate of the present invention.

The present invention is formed of synthetic resin, the blade thickness is within 3 ~ 5mm, the blade portion (1a) in the multi-purpose shovel (1), the width of the tip side is wide and the upper end of both side wall is formed by the bent portion (1b), 1a) 7 to 9 cm in length and 3.5 to 5 cm in length so as to be attached to the part leading to both side bent portions (1b) from the tip, and formed as an up-curved part (2a) so that the outer end is fitted to the curved surface of the side wall of the blade 3 to 4 connecting holes formed on the opposite end portion of the buried portion 2 'including the horizontal bending portion 2c followed by the upward bending portion 2b and penetrated vertically through the upward bending portion and the middle portion, respectively. 2d) and 3-4 fastening parts 2 "having tooth-shaped protrusions 2e formed on the upper surface of the connecting hole and reinforced with a steel plate of 0.7 ~ 1.0mm thickness in close contact with the bottom of the blade part. The bottom of the plate is exposed to the same height as the blade bottom, and the buried portion 2 'and the binding portion 2 "penetrate into the blade to be joined. Coupling the plate to the inner surface of the injection mold, and injection molding is a configuration such that the reinforcing plate integral with each other and the blades.

1: Shovel 1a: Blade part
1b: both side bends 2: reinforcement plate
2a: upward bending part 2b: upward bending part
2c: horizontal bend 2d: connector
2e: Serrated protrusion 2 ': Landfill
2 ": binding

Claims (1)

In the versatile shovel 1, which is formed of synthetic resin and has a blade thickness within 3 to 5 mm, and a wide width at the tip side of the blade portion 1a, and an upper end of both side walls is formed as a bent portion 1b, the blade portion 1a tip In order to be attached to the side leading to both sides of the bent portion (1b) to be 7 to 9cm in length, 3.5 to 5cm in size and the outer end is formed as an upward bent portion (2a) to fit the curved surface of the blade side, the opposite side 3 to 4 connecting holes 2d whose ends are formed of a buried portion 2 'composed of a horizontal bent portion 2c followed by an upwardly bent portion 2b and penetrated up and down respectively in an upwardly curved portion and a middle portion thereof; The bottom surface of the reinforcing plate is formed by contacting the bottom of the blade with a reinforcing plate 2 made of steel plate having a serrated protrusion 2e having a serrated protrusion 2e formed thereon and having a thickness of 0.7 to 1.0 mm. It is exposed to the same height as the blade bottom, and the buried portion 2 'and the binding portion 2 "penetrate into the blade and eject the reinforcement plate to be combined. Multi-use shovel made of synthetic resin with reinforced blade edges, which is bonded to the mold inner surface and injection-molded so that the reinforcement plate and the blade are integrated with each other.

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