JP2018035523A - Door stopper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solution to the problem that, while conventionally wedge-shape door stoppers of high-frictional shapes or material have been used to stop and hold doors by being inserted between the bottom of the door and the floor, actually the door stopper may end up moving together with the door when the door is closed (or opened) because of the insufficient frictional force between the floor surface and the bottom surface of the stopper.SOLUTION: A door stopper in this invention rather slides between it and a door, as such, the door slides on the door stopper increasing the downward force from the door stopper to the floor surface so that the door stopper with the effect of the friction between the door stopper and the floor surface easily stops and holds the door without moving on the floor when the door is closed (or opened).SELECTED DRAWING: Figure 1

Description

The present invention relates to a door stopper that is placed in a gap between a bottom portion of a door and a floor surface and is fixed in an open state.

Conventionally, in order to fix the door in an open state, a method of placing and fixing a wedge-shaped door stopper in the gap between the bottom of the door and the floor surface is often used.

This is because the gap between the bottom of the door and the floor is widened with a wedge, the pressure as the repulsive force is used to increase the frictional force between the bottom of the door and the floor, and the door stopper itself is fixed. The door is fixed in position.

For this reason, the friction resistance of the bottom of the door and the upper surface of the wedge, the floor surface and the lower surface of the wedge greatly affects its function, and in order to effectively perform these functions, the materials and shapes of Patent Documents 1 to 16 are used. Improvements have been made.

JP 2010-127068 (Door stopper including sliding surface) JP2004-316392 (using rubber balls) JP2004-211486 (top plate and rotating body) JP2000-080847 (with eccentric wheel) ACT 02-077273 (Improvement of wedge effect by material and shape) ACT 02-025668 (Expansion of applicable height by stacking) Mito 3138574 (Improvement of wedge effect by material and shape) Mito 3050043 (Expansion of applicable height by stacking) Noto 3033356 (Improvement of wedge effect by material) Joto 3003031 (provided flexibility and durability through through holes) JP2008-267094 (Anti-slip material and uneven material are used) JP2008-115573 (Expansion of applicable height by using portrait and landscape) JP-A 2005-139646 (C shape and flat plate combination) JP2004-084430 (Convenience improvement by circular wedge shape) JP2002-121954 (Expansion of applicable height by using both sides) JP 11-125052 (wedge shape using strip)

Since the wedge-shaped door stopper is used by being inserted into the gap between the bottom of the door and the floor, a shape or material having a large frictional force is used on the contact surface between the bottom of the door and the floor. This increases the force to fix the door.

As shown in Patent Documents 1 to 16, the past wedge-shaped door stoppers have been devised in various material shapes in order to increase the friction of the bottom surface.

However, there is a problem that the door stopper moves together with the opening and closing movement of the door, and the door stopper is opened and closed by pressing the foot with the foot until friction with the floor occurs, or the door stopper is fixed. It has fallen into a situation where it is plugged down.

As described in Patent Document 1, there are some which have a wedge-shaped door stopper that is divided into two upper and lower parts and a slide surface formed between them, but there is a tendency that the structure becomes complicated.

As disclosed in Patent Documents 2 to 4, some attempts have been made to effectively increase friction with the floor by combining rotating bodies, but there is a tendency that the structure becomes complicated.

As shown in FIG. 3, the upper surface of the door stopper has a soft structure with high slidability, while the bottom surface of the door stopper has a structure with high friction by providing grooves or protrusions or using an adhesive material. A soft material was used throughout.

In FIG. 4, the situation from when the door contacts with the door stopper during the opening / closing operation until it stops will be described.

Assume that the door is moving to the left. The door 2 comes into contact with the sliding surface material 3 at the upper part of the door stopper 1 at the lower left end of the door.

The door has a momentum to move, and the upper surface of the door stopper is very slippery so that it moves to the position 2a. The sliding face material 3 is slightly deformed to become 3a, and the door stops and is fixed.

The door 2a comes into contact with the lower left end of the door 2a at a position slightly higher than the door 2, and the door stopper receives a downward force and is pressed against the floor 4. And the friction between the floor 4 and the door stopper becomes strong, and the door stopper is fixed.

The door is stopped and fixed by the reaction force from the door stopper.

At the position where the door stopper is placed as described above, the door can be stopped and fixed without the door stopper moving by the opening and closing operation of the door. This door stopper has a simple structure and can be easily manufactured.

Basic perspective view of door stopper Usage guide of door stopper Elevated view of door stopper with different top and bottom friction conditions Elevation to explain the effect

The door stopper that stops and fixes the door without moving with the door when opening and closing the door is realized with a simple structure.

As shown in FIG. 3, a soft face material (plastic or the like) having a strong sliding property is provided on the upper part of a wedge-shaped elastic member (rubber or the like), and a serrated array of the same material is provided on the bottom surface to increase the friction. Door stopper.

This door stopper can be used in a room in a home or a public / multi-person room, a conference room, a meeting place, or a room with a door in a workshop party. Production is also possible without complicated processes.

1 Door stopper body 2 Position where the door contacts the door stopper 2a Position where the door is fixed 3 Sliding surface material 3a Shape of the sliding surface material when the door is moved and fixed 4 Floor

Claims (1)

A wedge-shaped door stopper that is used by placing it between the door and the floor, which are made by elastically fixing the friction surface and the slip surface diagonally facing each other.

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