JP2007285110A - Door stopper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door stopper reliably fixed between a door and a floor by devising the shape of the wedge-shaped door stopper and formed in simple structure so that it can be formed of the same material and a single part so as not to increase a manufacturing cost. <P>SOLUTION: The rubber-like door stopper of wedge shape from the side view is protrusively provided with a rotating leg 6 formed of a cylinder laid at the bottom face and lacking a part in the rear. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rubber-like wedge-shaped door stopper, and by fixing the shape of the bottom surface of the door stopper, the swing door is more reliably fixed without increasing the manufacturing cost.

Technical background

  Conventionally, as a door stopper for fixing a swing door, in order to increase friction with a rubber-like wedge-shaped door, protrusions are provided on the contact surface or bottom surface of the door, or a material with high friction is provided on the bottom surface. Publication and registered utility model 3033356.

  In order to further increase the repulsive force of the door stopper itself by using the pressure of the door that rides on, there is JP-A-11-172986 in which the frictional force of the surface that contacts the door is lowered.

  In order to further increase the repulsive force of the door stopper itself using the pressure of the door to be climbed, there are JP-A Nos. 2004-21486 and 2000-80847 in which rotating members such as wheels and balls are attached.

  Reality 05-036932   Registered Utility Model 3033356   JP-A-11-172986   JP-A-2004-21486   JP2000-80847

  To consider a door stopper that can fix the swing door more securely without increasing the manufacturing cost in the rubber wedge door stopper.

  In Japanese Utility Model Publication No. 05-036932 and Registered Utility Model No. 3033356, a rubber-like wedge-shaped one is provided with protrusions on the contact surface and bottom surface of the door, or a material with high friction on the bottom surface. However, in this case, the protrusion on the surface in contact with the door obstructs the door, and the door cannot sufficiently slide up the inclination of the door stopper. As a result, the door stopper cannot generate a repulsive force that the projection on the bottom surface or the member with high friction acts, and is pushed by the door and slides back on the floor surface.

  Japanese Patent Application Laid-Open No. 11-172986 discloses a rubber-like door that reduces the frictional force of the contact surface of the door in order to further increase the repulsive force of the door stopper itself by utilizing the pressure of the door to be climbed. If you remove the protrusion on the surface that touches the door, you will always have a step at the location where the door hits, and the door stopper will not be able to create a repulsive force that the protrusion on the bottom surface or a member with high friction acts. Will push the floor and slide back. Moreover, if a hard board is provided to prevent this, the door will be damaged. These problems can be solved by sliding the contact surface of the door. However, if different parts and members are required, the manufacturing process increases and there is a concern about an increase in cost.

  Japanese Patent Laid-Open Nos. 2004-21486 and 2000-80847 are a combination of rotating members such as wheels and balls in order to further increase the repulsive force of the door stopper itself using the pressure of the door to be climbed. However, if different parts and members are required, the manufacturing process increases and there is a concern about an increase in cost.

  In order to solve this problem, the present invention provides a wedge-shaped rubber door stopper in a side view, and gradually reduces the size of a rotating foot with a cylinder lying on its bottom and partially missing the rear toward a sharp front. A plurality of protrusions were projected. In addition, in a wedge-shaped rubber-like door stopper as viewed from the side, a rotating foot having a cylinder lying on its bottom and partially missing the rear is protruded on the opposite side from the sharp front. By doing so, when this door stopper is inserted into the gap between the lower side of the door and the floor at a free position when the swing door is opened, the pressure from the wedge shape to push the door stopper back to close the door The door stopper is caused to move up and down via a rotating foot that plays the role of, and by using the lifting force, the door stopper between the lower side of the door and the floor is suddenly increased in frictional resistance to stop the door. It is the intended instrument.

  In order to make a wheel that functions as a wheel on the bottom of a rotating foot, but with a single rubber-like material lump, the joint with the wedge shape is minimized as shown in FIG. There must be. However, if there are few joints, the material is rubbery and damage such as tearing is expected. Conversely, if the number of joints is increased as shown in FIG. 6, the function as a wheel is lost. Therefore, if the shape behind the cylinder is partially cut off, the circle will be forward, creating the same effect as rotating the wheel. In other words, since the cylinder does not actually rotate but uses a defect, it is possible to increase the number of joint portions with the wedge shape, and at the same time, it is possible to prevent breakage such as tearing.

  As described above, according to the present invention, the force for closing the swing door is effectively converted into the frictional force and the repulsive force between the floor surface and the door stopper of the present invention, so that the door can be surely stopped. . In addition, it was realized by making the circle rotate by cutting part of the cylinder protruding from the bottom and making it part of the back, so there are many joints with the wedge shape, etc. Can be manufactured with the same material and single parts.

  The present invention will be described with reference to the drawings. The door stopper 1 is made of a rubber-like material and has a wedge shape. The door stopper 1 is provided with steps and small protrusions 3 on the surface that comes into contact with the door so that the door can be easily received. A plurality of rotating feet 6 with a part of the rear part of the bowl protruding are protruded, and stepped and small protrusions 5 are provided in a portion in contact with the floor to increase friction with the floor. Further, a portion 4 in which a part of the cylinder is laid down is partially cut out, and a wedge-shaped joint 7 and a rotating foot 7 are made large.

  The door stopper 2 is provided with only one rotary foot on the rear side.

  The rotary foot 6 is not limited to a cylinder, and may be spherical.

  There may be no steps or small protrusions 3 on the surface in contact with the door or steps or small protrusions 5 on the portion in contact with the floor.

Industrial applicability

  Since the door stopper according to the present invention can be industrially mass-produced, it has industrial applicability.

It is a right view of the door stopper which made the bottom face project several rotation feet. It is a top view of the door stopper which made the bottom face project several rotation legs. It is a bottom view of the door stopper which made the bottom face project several rotation legs. It is a right view of the door stopper which made one rotation leg protrude from the bottom face. It is a right view of what reduced the junction part of the cylinder which laid down with the wedge shape. It is a right view of what increased the junction part of the cylinder which laid down with the wedge shape.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door stopper of this invention 2 Door stopper of another Example 3 Steps and small protrusions on the surface where the door contacts 4 Portions where the rear of the laid cylinder is cut out 5 Steps and small protrusions on the portion contacting the floor 6 Rotating foot 7 Wedge shape And rotating foot joint

Claims (2)

Side view, wedge-shaped, rubber-like door stopper, characterized in that a rotating foot with a cylinder lying on its bottom and partially missing the rear is gradually reduced in size toward the sharp front and protrudes And door stopper. A wedge-shaped, rubber-like door stopper in a side view, wherein a rotating foot having a cylinder lying on its bottom surface and partially lacking the rear is protruded on the opposite side from the sharp front.

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