JPWO2008129721A1 - Door stopper - Google Patents

Abstract

Provided is a door stopper (1) that is not restricted by the gap between the bottom surface of the door and the floor surface, and that is not restricted by the state of the floor surface, and that also considers safety. Specifically, the door stopper (1) has both a wedge shape and a spherical shape, and a ball (2) in which a central axis hole is formed is connected to the wedge-shaped frame (3) and used in an upright manner. Friction that occurs on the bottom of the wedge-shaped frame body without worrying about the state of the floor surface as a door stopper using the friction force generated on the ball without worrying about the gap between the bottom surface of the door and the floor surface It functions as a door stopper using force.

Description

  The present invention relates to a door stopper for stopping a door at an arbitrary position, and in particular, a door stopper having both a ball and a wedge shape made of a material having a high repulsive force and generating a large friction between the door and the door. It is about.

  Conventionally, there are a wedge-shaped door stopper and a spherical door stopper as door stoppers for stopping the door at an arbitrary position.

  As shown in Patent Document 1, the wedge-shaped door stopper is inserted into a gap between the bottom surface of the door and the floor surface to stop the door. In addition, as shown in Patent Document 2, the spherical door stopper places the ball on the door surface and prevents the ball from rotating by the strong frictional force generated simultaneously at the two contact points between the floor surface and the door surface. To do.

  Moreover, what is shown to patent document 3 exists as a door stopper which has a wedge shape and a spherical shape. This is to stop the door by obtaining a large frictional force by inserting a sphere into the wedge-shaped top plate portion.

Utility Model Registration No. 3033356 (FIGS. 2 and 5) Japanese Patent Laying-Open No. 2004-316392 (FIG. 1, specification [0005]) Japanese Patent Application Laid-Open No. 2004-21486 (FIGS. 1 to 3)

  However, the conventional wedge-shaped door stopper (Patent Document 1) is used when there is only a small gap between the bottom surface of the door and the floor surface, for example, when the apex angle portion of the door stopper is larger than the gap. There is a problem that you can not. There is also a problem that it takes time to insert the door stopper into the gap.

  In addition, the conventional spherical door stopper (Patent Document 2) can be easily put on the door just by placing it in front of the door, but on the other hand, a floor with a thick carpet or a carpet with long hairs, a wet floor Alternatively, when used on a floor covered with dust, the frictional force is weakened, so that the ball is likely to slip and the door cannot be retained. In addition, placing a single ball on the floor has a problem of accidentally riding on the ball and falling.

  Further, the conventional wedge-shaped door stopper (Patent Document 3) cannot be used if the tip of the insertion portion is larger than the gap between the bottom surface and the floor surface of the door. There is no change in having the same problem. Also, since the ball is not fixed to the top plate, only the ball rolls, and there is a risk of accidentally getting on the ball and falling over, so there is the same problem as the conventional spherical door stopper There is no change.

  The present invention has been made to solve such a problem, and the object thereof is not limited to the gap between the bottom surface of the door and the floor surface, and is also limited to the state of the floor surface. It is to provide a door stopper that is also safe.

  In order to solve the above-described problems, the door stopper of the present invention has a wedge shape and a spherical shape, and can be used by selectively using each feature, and a ball having a central shaft hole formed therein. Is connected to a wedge-shaped frame and used as a door stopper that uses the frictional force generated on the ball without worrying about the gap between the bottom surface of the door and the floor surface. It functions as a door stopper that utilizes the frictional force generated on the bottom surface of the wedge-shaped frame without worrying about the state.

  More specifically, the present invention provides the following.

  (1) A substantially wedge-shaped second member having a spherical first member formed with a central shaft hole, and a coupling hole formed on both side surfaces, and a space for rotatably accommodating the first member. And a bar-shaped third member that is inserted into the central shaft hole and held in the connecting hole.

  (2) When the center of the first member is a center point, the front surface of the second member has a substantially semi-elliptical shape centered on the center point, and the gap is centered on the center point. A door stopper characterized by a substantially semi-elliptical shape.

  (3) A door stopper, wherein an uneven plate-like body is formed on the back surface of the second member.

  According to the present invention, a wedge-shaped function and a spherical-shaped function can be selectively used with one door stopper in accordance with various floor surfaces and the state of gaps between the bottom surfaces of doors.

  That is, by using the first member while standing in contact with the floor surface, the door can be stopped at an arbitrary position even when there is almost no gap between the bottom surface of the door and the floor surface. In this case, the first member functions as a door stopper, and the second member functions as a member that restricts movement of the first member other than in the rotation direction. Further, the second member functions as a handle when the door stopper is placed on the floor.

  In addition, when the gap between the bottom surface of the door and the floor surface is too large and there is a gap larger than the radius of the first member, a sufficient frictional force cannot be obtained on the first member. When the door is placed in contact with the floor surface and used, it can be inserted into the gap between the bottom surface of the door and the floor surface to stop the door at an arbitrary position. In this case, the second member functions as a door stopper. Furthermore, a large frictional force can be obtained by the uneven plate-like body formed on the floor surface and the back surface of the second member when laid down.

  Moreover, since the displacement direction of the 1st member with respect to a 2nd member is controlled by connecting a 1st member and a 2nd member with a 3rd member, rolling of a 1st member can be suppressed.

  In addition, since the connection hole of the second member is formed with an play capable of displacing the first member, the rolling of the first member can be suppressed while the rolling range of the first member is widened, so the second member is used in a laying state. Even in this case, the first member can be appropriately positioned so that the first member does not interfere with the floor surface.

  In addition, according to the present invention, the door stopper has a gap having a substantially semi-elliptical shape having a larger diameter than the first member with respect to the second member having a substantially semi-elliptical shape. By accommodating one member in a rotatable manner, a sufficient frictional force can be generated in the first member even when used in an upright position.

  (4) The door stopper, wherein the diameter of the first member is smaller than the diameter of the substantially semi-elliptical shape of the gap.

  According to the present invention, the first member is rotatably accommodated in the second member. The side surface of the second member has a substantially triangular shape or a substantially trapezoidal shape, and the two sides of the surface on which the first member is located are both acute angles, so that the side surface of the second member has a substantially triangular shape. Alternatively, it has a substantially trapezoidal shape, and since the two corners of the surface on which the first member is located are both acute angles (0 <angle <90 °), the apex angle is located in the center point direction. When one corner of the surface on which the first member is located is a right angle or an obtuse angle, the balance of the door stopper cannot be maintained, and it may be difficult to use it upright. This prevents the door stopper from falling down.

  As described above, according to the present invention, when the floor is covered with flooring, tiles or thin carpet and is not covered with dust or wet, the ball-shaped door stopper of the first member is provided. If it is placed toward the door, even if the door is closed, the door can be held by the large frictional force generated at the contact point between the ball and the floor and the door and the repulsive force of the ball returning to its original shape. . Moreover, since it is such a mechanism, there is almost no clearance between the bottom surface of the door and the floor surface, and it is effective for a door into which a wedge cannot be inserted. On the other hand, a wedge type door stopper may be used for a case where the floor surface is slightly wet or covered with dust, or a thick carpet is laid and the ball type door stopper slips.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  Drawing 1 is a schematic diagram showing door stopper 1 concerning an embodiment of the invention, (a) is a side view and (b) is a top view.

  The door stopper 1 includes a ball 2 as a first member, a wedge 3 as a second member, and a shaft 4 as a third member.

  The ball 2 is made of a material that is rich in repulsive force and generates a large frictional force between the ball 2 and the contacted material. For example, the ball 2 is mainly a material such as EPDM or polybutadiene rubber, and is a sphere having a diameter of less than 5 cm and a weight of less than 50 g. . A central axis hole 5 is formed in the central axis of the ball 2, and the shaft 4 is inserted into the central axis hole 5.

  The wedge 3 is formed with connecting holes on both side surfaces, irregularities on the back surface, and a substantially semi-elliptical gap 6 for rotatably accommodating the ball 2. The wedge 3 appears in FIG. 2 as two semi-elliptical shapes having the same center point, presents a horizontally long semi-elliptical outer frame, and has a semi-elliptical inner frame having a smaller diameter than the horizontally long semi-ellipse. A void is formed by the above. Further, the bottom surface of the wedge 3 is formed with a leg 3a that protrudes on the opposite side of the gap, so that the wedge 3 can stand up even when the wedge 3 is erected. Further, since the ball 2 is located in the gap portion, the ball 2 and the foot 3a can be used independently. Since the door stopper 1 can stand up in this way, it is more compact and unobtrusive when placed in front of the door or when stored.

  Further, on both side surfaces of the wedge 3, hands 3b projecting outward in the same direction as the foot 3a are formed, and a wedge shape smaller than the wedge 3 is exhibited. Since the tip of the hand 3b is thinner than the tip of the wedge 3 main body, even if the gap between the door and the floor is narrower, it is made to function as a door stopper by the tip of the hand 3b instead of the tip of the wedge 3. Can respond.

  FIG. 2 is a diagram showing a usage example of the door stopper 1 according to the embodiment of the present invention.

  By attaching handles 8 and straps to the door stopper connected via the frame 7, it is easy to operate while standing without bending down, so that not only healthy people but also handicapped people and wheelchair attendants can manually Also useful when passing through the hinged door.

  FIG. 3 is a schematic view showing the door stopper 1 according to the embodiment of the present invention, in which (a) is a rear view and (b) is a side view.

  Unevenness for preventing slipping is formed on the back surface.

  4A and 4B are diagrams showing an example of use of the door stopper 1 according to the embodiment of the present invention, where FIG. 4A shows a case where the door stopper 1 is used in an upright position, and FIG.

  When used in a standing position, the gap between the bottom surface of the door and the floor surface can be 0 to 30 mm with a ball 2 having a diameter of 5 cm. Further, in the case of an inwardly open door, there is an advantage that the door can be locked with the door closed only by placing the door stopper 1 on the door side of the room surface.

  In particular, in a general house, there was almost no key in each room, and even when people did not want to temporarily enter when changing clothes etc., the door could not be locked, According to such a door stopper 1, the door cannot be opened from the outside of the room, so that it can be used with peace of mind. Even if the door is forced to open, only a large force is applied to the ball. However, if the ball is pushed harder, the stronger the friction and repulsive force are generated, the more the door can be stopped at an arbitrary position.

  FIG. 5 is a view showing the door stopper 1 according to the embodiment of the present invention, in which (a) is a bottom view, (b) is a left side view, (c) is a front view, and (d) is a right side view. (E) is a rear view, and (f) is a plan view.

  The door stopper according to the present invention is useful as a product considering safety without being restricted by a gap between the bottom surface of the door and the floor surface or a state of the floor surface.

It is the schematic which shows the door stopper which concerns on embodiment of this invention. It is a figure which shows the usage example of the door stopper which concerns on embodiment of this invention. It is the schematic which shows the door stopper which concerns on embodiment of this invention. It is a figure which shows the usage example of the door stopper which concerns on embodiment of this invention. It is a figure which shows the door stopper which concerns on embodiment of this invention.

Explanation of symbols

1 Door stopper 2 Ball (first member)
3 Wedge (second member)
4 Shaft (third member)
5 Center shaft hole 6 Air gap 7 Frame 8 Handle

Claims (4)

A spherical first member in which a central shaft hole is formed;
A substantially wedge-shaped second member having connecting holes formed on both side surfaces and a space for rotatably accommodating the first member;
A rod-shaped third member inserted into the central shaft hole and held in the connection hole;
The door stopper characterized by being comprised by.   When the center of the first member is a center point, the front surface of the second member has a substantially semi-elliptical shape centered on the center point, and the gap is a substantially semi-ellipse centered on the center point. The door stopper according to claim 1, wherein the door stopper has a shape.   The door stopper according to claim 1 or 2, wherein a diameter of the first member is smaller than a diameter of the substantially semi-elliptical shape of the gap.   The door stopper according to any one of claims 1 to 3, wherein an uneven plate-like body is formed on the back surface of the second member.

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