JP6620298B2 - Door stopper - Google Patents

Description

  The present invention relates to a door stopper, and more particularly to a door stopper capable of locking a door at an arbitrary position.

  Conventionally, a door stopper having a substantially wedge-shaped outer shape is known as such a door stopper (see, for example, Patent Document 1). Such a conventional door stopper is configured to be inclined from a rear end portion to a sharp tip portion. With such a configuration, the distal end portion can be inserted into the gap between the floor surface and the door, so that the door can be pressed (locked) at an arbitrary position. However, in such a conventional door stopper, since it is necessary to install the front end portion so that it can enter the gap between the floor and the door, the user must bend the body, etc. There was a problem that it had to be installed, and the installation was troublesome (lack of easy installation). Further, in such a conventional door stopper, there is a problem that if the gap between the floor surface and the door is too narrow, the front end of the door stopper cannot be inserted, so that it cannot be used.

  As a door stopper for solving such a problem of the conventional door stopper, a door stopper using a spherical member is known (for example, see Patent Document 2). Such a spherical member is made of a material that exhibits a large frictional force against the floor surface and the door surface. With such a configuration, when the spherical member is pushed by the door, a large frictional force is generated at each contact point of the floor surface and the door surface, and a repulsive force is generated in the spherical member against the pressing of the door. It can be locked. As described above, since the door stopper described in Patent Document 2 is formed of a spherical member, it is not necessary to insert the door stopper into the gap between the floor surface and the door. Therefore, the door stopper is used even when the gap between the door and the floor surface is narrow. be able to.

  However, if such a spherical member is used as it is as a door stopper, it may fall over when the spherical member is stepped on. Further, if the spherical member is touched directly, the hand is soiled by dust or dirt on the floor surface adhering to the spherical member.

  Therefore, in order to solve such a problem, for example, as shown in FIG. 1A, a door stopper 100 is proposed that accommodates a spherical member 110 that generates a large frictional force in a container 120 having an opening through which the spherical member 110 can be exposed. (See Patent Document 2). The door stopper 100 presses and holds the door 6 by the frictional force between the spherical member 110 and the door surface 6A of the door 6 and the repulsive force of the spherical member 110 due to the frictional force between the spherical member 110 and the floor surface F. Can do. According to such a door stopper 100, since the spherical member 110 is accommodated in the container 120, the above-described problem of falling over the spherical member or the problem of dirty hands by directly touching the spherical member are solved. be able to.

However, for example, when the door 6 hits the door stopper 100 from the direction of the arrow G ₁ shown in FIG. 1B, the container 120 covering the spherical member 110 is interposed between the spherical member 110 and the door 6. The door surface 6 </ b> A cannot contact the spherical member 110. For this reason, since a frictional force is not generated between the spherical member 110 and the door surface 6A, the door 6 may not be locked. Therefore, in such a door stopper 100, it is necessary to adjust the direction of the door stopper 100 so that the door 6 and the spherical member 110 contact. For this reason, the user must also bend his body when installing the door stopper 100, and the above-described problem of installation ease cannot be solved.

Registered Utility Model No. 3033356 JP 2004-316392 A

  The present invention has been made in view of such problems of the prior art, and is excellent in installation ease in which a user can easily and surely lock a door without bending the body. The object is to provide a door stopper.

  According to one embodiment of the present invention, a door stopper excellent in installation ease is provided. The door stopper according to the present embodiment is installed on the floor surface to lock the door, and accommodates a spherical member that exhibits a first frictional force against the floor surface and the spherical member therein. And a containing body. The container exhibits a second friction force smaller than the first friction force with respect to the floor surface. Further, the container has at least one opening for exposing a part of the spherical member so that the spherical member can contact the door surface and the floor surface of the door. When the container is pushed by the door, the spherical member exposed from the opening is in contact with the door due to a difference in magnitude between the first and second frictional forces. The container is configured to move relative to the spherical member.

  With such a configuration, even when the user stands and throws the door stopper, the door can be locked securely, so that the body can be bent flexibly to install the door stopper properly. Thus, it is possible to provide a door stopper that is excellent in ease of installation and does not need to be.

  The container may include a top portion, a bottom portion, and a connecting portion that connects the top portion and the bottom portion. In this case, it is preferable that the at least one opening includes at least one bottom opening formed in the bottom and at least one connection opening formed in the connection.

The outer shape of the container may be a hexahedron, particularly a cube. With such a configuration, the door stopper can be stably installed on the floor surface. In this case, you may provide the contact part which protrudes toward the outer side from this surface in the surface which does not have the said connection part opening part among the several surfaces which comprise the said connection part . With such a configuration, the door can be reliably locked even when the floor surface is made of a carpet having a long bristle foot or the like. Here, you may comprise the said contact part as a member which has the inclined surface which descends | falls toward the outer side from the surface which does not have the said connection part opening part. With such a configuration, even when the gap between the carpet and the door is narrow, the inclined surface can enter the gap, so that the door can be locked.

  The at least one opening may include at least one top opening formed in the top. With such a configuration, the door can be reliably locked regardless of which surface is in contact with the floor surface.

  Further, at least one outer shape of the at least one opening may be a circle. As a result, the spherical member is exposed in a larger range, and as a result, the spherical member and the floor or door come in contact with each other in a larger range, so that a large friction force can be obtained.

  The bottom portion may be configured to protrude outward from outer edges of the top portion and the connecting portion. With such a configuration, the door stopper can be securely locked without falling down even if the user is standing and throwing the door stopper or moving it somewhat roughly with the tip of the foot. The door stopper excellent in the installation ease which does not need to bend a body in order to install can be provided. Moreover, since the said bottom part is comprised so that it may protrude outside from the outer edge of the said top part and the said connection part, a door stopper can be stably installed in a floor surface.

In this case, the at least one bottom opening gradually increases in width toward the connection opening so that the spherical member moves relatively toward the connection opening during the relative movement. It is preferable that Furthermore, it is preferable that the at least one connecting portion opening is two connecting portion openings formed so as to face each other across the center of the bottom. Further, the at least one bottom opening may include two substantially circular regions arranged in the vicinity of the two connecting portion openings, and the substantially circular region is interposed between the two substantially circular regions. A narrow portion having a narrower width may be formed. With such a configuration, the container relatively moves so that the spherical member moves to the substantially circular area while being guided by the constricted portion by the pressing of the door, so that the door can be more reliably locked. .

  The container may be formed so as to come into contact with the floor surface by curving so that an outer peripheral surface thereof is convex toward the outside. In this case, the relative movement may include movement of the container in a direction horizontal to the floor surface and a direction perpendicular to the floor surface. The container may be formed in a bowl shape. With such a configuration, even when the user stands and throws the door stopper, the door can be locked securely, so that the body can be bent flexibly to install the door stopper properly. Thus, it is possible to provide a door stopper that is excellent in ease of installation and does not need to be.

  It is preferable that the container further includes a weight portion provided in the vicinity of the at least one opening. Thereby, the part of the spherical member exposed from the bottom opening and the floor surface can be reliably brought into contact with each other. In this case, the at least one bottom opening and the at least one connection opening may be integrally formed. Thereby, when the said container rotates along the outer peripheral surface of the said spherical member, the said spherical member can be made to contact effectively with the said door and the said floor surface.

  The spherical member may be composed of ethylene propylene diene monomer (EPDM), polybutadiene rubber, or a combination thereof. Thereby, a large frictional force can be generated between the spherical member, the floor surface and the door.

  According to the present invention, the container moves relative to the spherical member due to the difference in magnitude between the first and second frictional forces, whereby the inner surface of the container contacts the outer peripheral surface of the spherical member. Further, due to the difference between the magnitudes of the first and second frictional forces, the container moves relative to the spherical member, whereby a part of the spherical member is exposed from the opening of the connecting portion, and the exposed portion Can be brought into contact with the door. As a result, even when the user stands and throws the door stopper, the door can be locked securely, so it is necessary to bend the body to install the door stopper properly. It is possible to provide a door stopper excellent in ease of installation.

It is sectional drawing in the side view of the conventional door stopper. It is sectional drawing in the side view of the conventional door stopper. It is a perspective view which shows typically the door stopper in the 1st Embodiment of this invention, and shows the door stopper arrange | positioned on the floor surface. It is a front view of the door stopper shown in FIG. It is a top view of the door stopper shown in FIG. It is the sectional view on the AA line of the door stopper shown in FIG. It is a front view of the door stopper shown in FIG. 2, and shows the state before installing on a floor surface. FIG. 3 is a side view of the door stopper shown in FIG. 2, schematically showing a state in which the door is locked by the door stopper. It is a top view which shows typically a motion of a door stopper until a door is latched by the door stopper shown in FIG. It is a perspective view which shows the modification of the door stopper shown in FIG. FIG. 10 is a front view of the door stopper shown in FIG. 9. It is sectional drawing which shows typically the case where a door contacts the latching member of the door stopper shown in FIG. It is sectional drawing which shows typically a motion of a door stopper until a door is latched by the door stopper shown in FIG. It is sectional drawing which shows typically a motion of a door stopper until a door is latched by the door stopper shown in FIG. It is an upper perspective view which shows typically the door stopper in the 2nd Embodiment of this invention, and shows the door stopper arrange | positioned on the floor surface. It is a side view of the door stopper shown in FIG. It is a front view of the door stopper shown in FIG. It is a perspective view which shows typically the bottom part of the container of the door stopper shown in FIG. It is a top view which shows typically the bottom part of the container of the door stopper shown in FIG. FIG. 15 is a side view of the door stopper shown in FIG. 14, schematically showing a state where the door is locked by the door stopper. It is a side view which shows typically the door stopper in the 3rd Embodiment of this invention, and shows the door stopper arrange | positioned on the floor surface. It is a bottom view of the door stopper shown in FIG. It is a front view of the door stopper shown in FIG. It is CC sectional view taken on the line of the door stopper shown in FIG. It is the DD sectional view taken on the line of the door stopper shown in FIG. FIG. 21 is a bottom view of the door stopper shown in FIG. 20, schematically showing a state where the door is locked by the door stopper. It is a front view which shows typically the latching state shown in FIG. FIG. 21 is a bottom view schematically showing the movement of the door stopper until the door is locked by the door stopper shown in FIG. 20. It is a side view which shows typically a motion of a door stopper until a door is latched by the door stopper shown in FIG. FIG. 21 is a bottom view schematically showing the movement of the door stopper until the door is locked by the door stopper shown in FIG. 20. It is a side view which shows typically a motion of a door stopper until a door is latched by the door stopper shown in FIG. FIG. 21 is a bottom view schematically showing the movement of the door stopper until the door is locked by the door stopper shown in FIG. 20. It is a side view which shows typically a motion of a door stopper until a door is latched by the door stopper shown in FIG.

  Hereinafter, an embodiment of a door stopper according to the present invention will be described in detail with reference to FIGS. 2 to 30, the same or corresponding components are denoted by the same reference numerals, and redundant description is omitted. In addition, in FIGS. 2 to 30, the scale and dimensions of each component are exaggerated, and some components may be omitted.

(First embodiment)
2 is a perspective view showing the door stopper 1 according to the first embodiment of the present invention, FIG. 3 is a front view of the door stopper 1 shown in FIG. 2, FIG. 4 is a plan view, and FIG. It is A sectional view. 2-5 has shown the state which installed the door stopper 1 in the floor surface F (refer FIG. 5). In addition, in this specification, the floor surface F shall represent the surface of the rug, when rugs, such as a carpet, are laid on the floor.

  As shown in FIGS. 2 to 5, the door stopper 1 includes a spherical member 10 and a container 20 having a housing space formed therein so as to house the spherical member 10 therein. The spherical member 10 is configured as a sphere having a diameter of about 5 cm and a weight of about 50 g using, for example, ethylene propylene diene monomer (EPDM), polybutadiene rubber, or the like. With such a configuration, the spherical member 10 exhibits a larger frictional force (first frictional force) with the floor surface F than the container 20.

  The container 20 has a cubic outer shape, and is configured to be extremely light compared to the spherical member 10 by using, for example, thin soft vinyl or plastic. With such a configuration, only a small frictional force (second frictional force) is generated between the container 20 and the floor surface F as compared with the frictional force between the spherical member 10 and the floor surface F. It has become.

  The container 20 includes a bottom surface (bottom portion) 21 defined as an installation surface on the floor surface F, an upper surface (top portion) 22 that faces the bottom surface 21, and four surfaces (connection portions) that connect the bottom surface 21 and the upper surface 22. (That is, the front surface 23, the right side surface 24, the rear surface 25, and the left side surface 26). As shown in FIG. 5, the thickness of each surface of the container 20 is extremely thin compared to the length of each surface of the container 20.

  As shown in FIG. 5, the distance between the opposing inner surfaces of the container 20 is configured to be longer than the diameter of the spherical member 10. With such a configuration, the spherical member 10 can move inside the container 20.

  A circular opening 51 (bottom opening) is formed on the bottom surface 21, and the diameter of the opening 51 is shorter than the diameter of the spherical member 10. With such a configuration, as shown in FIG. 6, when the door stopper 1 is lifted, only a part of the spherical member 10 protrudes downward due to the weight of the spherical member 10 and is exposed to the outside. 20 does not jump out of the outside. Similarly, circular openings (connecting portion opening portions) 53 to 56 having the same diameter as the opening portion 51 are formed on the four surfaces 23 to 26 of the connecting portion, respectively. Similarly, a circular opening 52 (top opening) having the same diameter as the opening 51 is formed on the upper surface 22. With such a configuration, a part of the spherical member 10 can be exposed from any surface of the container 20.

FIG. 7 is a side view schematically showing an example of a state in which the door stopper 1 installed on the floor surface F is engaged with the door 6 by contacting the door 6. In the example shown in FIG. 7, the portion of the spherical member 10 exposed from the opening 51 of the bottom surface 21 and the floor surface F are in contact with each other in the region P, and the portion of the spherical member 10 exposed from the opening 53 of the front surface 23 and the door. 6 in contact with the door surface 6A. At this time, in the region Q, a large frictional force is generated between the spherical member 10 and the door surface 6A. In the region P, as described above, a large frictional force is generated between the spherical member 10 and the floor surface F. As a result, the spherical member 10 hardly moves. Therefore, due to the frictional force between the frictional force and the spherical member 10 and the floor F between the even pressing the door 6 in the direction of arrow G ₂ with respect to the spherical member 10, the spherical member 10 and the door surface 6A Due to the repulsive force of the spherical member 10, the door 6 is pressed and locked in that position. In FIG. 7, for easy understanding, the bottom surface 21 and the floor surface F are drawn apart from each other, and similarly, the front surface 23 and the door surface 6 </ b> A of the door 6 are drawn apart from each other. Actually, the bottom surface 21 and the floor surface F are substantially in contact with each other, and the front surface 23 and the door surface 6A of the door 6 are substantially in contact with each other.

  Hereinafter, the movement of the door 6 and the door stopper 1 in the closing process will be described in detail with reference to FIGS. FIG. 8 schematically shows a state in which the door stopper 1 and the door 6 are viewed from above.

  When using the door stopper 1, the user can throw the door stopper 1 toward the vicinity of the door 6 (without bending the body). For example, it is assumed that the door stopper 1 is thrown on the floor surface F in the state shown in FIG. When the door 6 is closed in this state, the door 6 first comes into contact with the connecting portion 27 between the front surface 23 and the right side surface 24 of the container 20 (FIG. 8B). When the container 20 is further pushed from this state, only a frictional force (second friction force) smaller than the frictional force of the spherical member 10 is generated between the container 20 and the floor surface F. 20 moves (retreats) without resisting the pressing of the door 6 (FIG. 8C). Thereby, the spherical member 10 is exposed from the opening 53 of the front surface 23. Even when the container 20 is further pushed from this state, a large frictional force (first frictional force) is generated between the spherical member 10 and the floor surface F as described above. Absent. Therefore, the spherical member 10 hardly moves, and only the container 20 is pushed by the door 6 and moves in the horizontal direction (direction parallel to the floor surface F) along the outer peripheral surface of the spherical member 10. That is, the spherical member 10 is relatively moved (relatively moved) around the spherical member 10, and finally, the front surface 23 of the container 20 and the door surface 6 </ b> A face each other and are exposed from the opening 53 of the front surface 23. Will come into contact with the door surface 6A (FIG. 8D). Therefore, the door 6 is pressed and locked in that position by the frictional force between the spherical member 10 and the door surface 6A and the repulsive force of the spherical member 10 due to the frictional force between the spherical member 10 and the floor surface F. (State shown in FIG. 7).

  As described above, the case where the door 6 first contacts the coupling portion 27 has been exemplarily described. However, regardless of the position of the container 20 that the door 6 first contacts, the process is as shown in FIG. The door 6 is locked.

  As described above, according to the present embodiment, even when the spherical member 10 and the door 6 do not first contact, as a result of the relative movement of the container 20 with respect to the spherical member 10, the door 6 and the spherical member are finally obtained. The door 6 can be pressed and locked by contact with 10. Therefore, it is not necessary to install the door stopper 1 so that the door 6 and the part of the spherical member 10 exposed from the opening first contact each other. That is, for example, when the door stopper 1 is thrown and thrown, the door 6 can be surely pressed regardless of the direction of the door stopper 1, so that it is bothered to be installed at an appropriate position. Save time and effort. Thus, the door stopper 1 which concerns on this embodiment is excellent in installation ease.

  In addition, when the door 6 contacts the part of the spherical member 10 exposed from any of the openings 51 to 56 for the first time, between the spherical member 10 and the door surface 6A of the door 6 at the initial stage of contact. The repulsive force of the spherical member 10 due to the frictional force and the frictional force between the spherical member 10 and the floor surface F acts, so that the door 6 can be pressed and locked.

  Moreover, in this embodiment, although the container 20 is formed in the cube, the external shape of a container may be a hexahedron (for example, a rectangular parallelepiped). Moreover, you may chamfer the coupling | bond part of each surface. Furthermore, the openings 51 to 56 in the present embodiment are each formed as a circular hole having the same diameter. However, if a part of the spherical member 10 can be exposed, the circular holes having the same diameter are used. It is not always necessary that the outer shape is a circle. However, from the viewpoint of increasing the exposed area of the spherical member 10, the openings 51 to 56 are preferably circular holes.

  Moreover, if the opening part is provided in the bottom face 21 of the container 20, and any one of the four surfaces 23-26 which comprise a connection part, an opening part will not necessarily be provided in all the surfaces of the container 20. FIG. There is no need to provide it. However, in this case, depending on the installation state of the door stopper 1 (for example, when the upper surface 22 is not provided with an opening, the door stopper 1 is installed so that the upper surface 22 contacts the floor surface F). It is conceivable that the door cannot be pressed because the spherical member 10 and the floor surface F cannot contact each other. Therefore, from the viewpoint of preventing such a case from occurring, it is preferable to provide openings on all surfaces. It is also possible to provide a plurality of openings on each surface.

  By the way, according to the door stopper 1, when the floor surface F is constituted by a carpet having a long bristle, a sufficient frictional force cannot be obtained between the floor surface F and the spherical member 10, and the door 6 is engaged. It is thought that it cannot be stopped. In order to enable the door 6 to be locked even in such a case, as shown in FIG. 9, the locking member is attached to at least one of the four surfaces 23 to 26 constituting the connecting portion of the container 20. 200 (contact portion) may be provided.

  FIG. 9 is a perspective view showing the door stopper 4 provided with such a locking member 200, and FIG. 10 is a front view of the door stopper 4 shown in FIG. As shown in FIGS. 9 and 10, the right side surface 24 of the door stopper 4 is different from the other surfaces (the front surface 23, the rear surface 25, and the left side surface 26) constituting the connecting portion of the door stopper 4, and an opening is formed. The locking member 200 is attached to the lower part of the right side surface 24 (on the side in contact with the floor surface F). The locking member 200 may be attached to any surface of the surfaces 23 to 26 constituting the connecting portion as long as the opening is not formed, and the surfaces 23 to 26 constituting the connecting portion. May be attached to a plurality of surfaces in which no opening is formed.

  As shown in FIGS. 9 and 10, the locking member 200 is located on the same plane as the front portion 230 that is a right triangle in front view and the bottom surface 21 of the door stopper 4 when attached to the right side surface 24. A bottom portion 210 (lower surface), a side portion 240 (side surface) that contacts the right side surface 24, and an inclined surface 250 that is inclined downward from the right side surface 24 toward the outside of the door stopper 4, and is generally wedge-shaped. It is configured as a triangular prism member having an outer shape. That is, the door stopper 4 includes a locking member 200 that protrudes from the right side surface 24 toward the outside of the door stopper 4.

  With such a configuration, even when the floor surface F is configured by a carpet J (see FIG. 11) having a long bristle (hereinafter, sometimes simply referred to as a carpet J), the locking member 200 is provided. Thus, the door 6 can be reliably locked. When the gap between the carpet J and the door 6 is small, the door 6 can be locked by the inclined surface 250 of the locking member 200 entering the gap (see FIG. 11).

  Hereinafter, the process in which the door stopper 4 installed on the carpet J engages with the door 6 will be described in detail with reference to FIGS. 12 and 13 are diagrams schematically showing a cross section of the door stopper 4 in a front view.

  When using the door stopper 4, the user installs the door stopper 4 on the floor surface F (the carpet J) so that the right side surface 24 to which the locking member 200 is attached and the door 6 first come into contact with each other. Can do. In this case, the door 6 in the process of closing first contacts the right side surface 24. Then, as shown in FIG. 12, the frictional force generated between the container 20 and the carpet J is smaller than the frictional force generated between the spherical member 10 and the carpet J, so that the container 20 is applied to the spherical member 10. As a result of the retreat (relative movement), the spherical member 10 and the right side surface 24 come into contact with each other. As a result, a frictional force is generated between the spherical member 10 and the inner surface 24A of the right side surface 24.

  When the door stopper 4 (the right side surface 24 of the container 20) is further pressed from this state, a frictional force that is large enough to hold the spherical member 10 between the spherical member 10 and the carpet J is not generated. Therefore, the spherical member 10 that has been pressed by the door 6 rotates in the direction in which the door 6 is pressed while in contact with the right side surface 24. That is, as shown in FIG. 13, the spherical member 10 rotates counterclockwise while being in contact with the right side surface 24. In this case, as described above, a frictional force is generated between the spherical member 10 and the inner surface 24A of the right side surface 24 due to the contact between the spherical member 10 and the inner surface 24A. Along with the rotation, it moves relative to the spherical member 10 upward. When the door stopper 4 is pushed by the door 6 and the container 20 moves upward, the locking member 200 that protrudes outward from the right side surface 24 and the lower surface 6B of the door 6 finally come into contact with each other, whereby the container 20 Movement upward is restricted. When the door stopper 4 is further pressed from this state, the container 20 cannot move any further upward as described above. Therefore, the pressing of the door 6 is the direction in which the spherical member 10 is pressed against the carpet J as a reaction. Will act. Thereby, the spherical member 10 is strongly pressed against the carpet J, cannot be rotated any more, and remains in that position. That is, as shown in FIG. 13, after this state, even if the door 6 pushes the door stopper 4, the spherical member 10 does not move from the position, so the door 6 is pressed and locked at that position. .

  Thus, according to the door stopper 4, since the rotation of the spherical member 10 can be suppressed by the locking member 200, the door 6 is reliably locked even when installed on the carpet J or the like having a long bristle. be able to. Further, since the locking member 200 has a wedge-shaped outer shape as described above, when the gap between the carpet J and the door 6 is small, the locking member 200 enters the gap so that the door 6 is moved. It can also be locked.

  If the door 6 can be locked when installed on the floor surface F such as the carpet J having a long bristle foot, the locking member 200 does not necessarily need to be wedge-shaped.

(Second Embodiment)
14 is an upper perspective view showing the door stopper 2 according to the second embodiment of the present invention, FIG. 15 is a side view of the door stopper 2 shown in FIG. 14, and FIG. 16 is a front view. 14 to 16 show a state in which the door stopper 2 is installed on the floor surface F (see FIGS. 15 and 16).

  As shown in FIGS. 14 to 16, the door stopper 2 includes a spherical member 10 and a housing body 30 that houses the spherical member 10 movably therein. The container 30 has a cone-shaped outer shape in which a housing space is formed, and includes a vertex (top) 35, a bottom 31, and a connecting portion 34 that connects the vertex 35 and the bottom 31. Yes. The container 30 is configured to be extremely light compared to the spherical member 10 by using, for example, soft vinyl or plastic. With such a configuration, the container 30 exhibits a small frictional force with the floor surface F (see FIGS. 15 and 16) compared to the spherical member 10.

FIG. 17 is a perspective view schematically showing only the bottom 31 of the container 30. As shown in FIG. 17, the bottom portion 31 of the container 30 is formed of a plate-like member wider than the top portion 35 and the connecting portion 34, and has a substantially square outer shape defined by diagonal lines L ₁ and L ₂ . ing. The bottom 31 can be formed of, for example, soft vinyl or plastic having a thickness of about 2 mm. An opening 60 (bottom opening) is formed at the center of the bottom 31 so that a part of the spherical member 10 can be exposed (exposed to the outside of the container 30). Therefore, when the door stopper 2 is installed on the floor surface F, a part of the spherical member 10 is exposed from the opening 60 and comes into contact with the floor surface F.

As shown in FIGS. 14 to 17, the connecting portion 34 includes two support portions 32 and 32 provided so as to face each other on the diagonal line L ₁ of the bottom portion 31 with the center C ₁ of the bottom portion 31 interposed therebetween. The dome part 33 which connects the support | pillar parts 32 and 32 and the vertex 35 is included. With the support portions 32 and 32, the dome portion 33, and the bottom portion 31, two openings 65 and 65 (connection portion openings) are formed in the connection portion 34. The openings 65 and 65 are formed so as to face each other on the diagonal L ₂ (see FIG. 17) of the bottom 31 with the center C ₁ of the bottom 31 interposed therebetween. Such an opening 65 allows a part of the spherical member 10 to be exposed from the connecting portion 34.

Here, as shown in FIGS. 14 to 16, the maximum height from the bottom 31 of the opening 65 is formed lower than the diameter of the spherical member 10. Further, as shown in FIGS. 14 to 17, the outer side of the opening 65 on the diagonal line L ₂ of the bottom 31 is directed upward (vertical side) so as to face each other with the center C ₁ of the bottom 31 interposed therebetween. Bumps 40, 40 extending in the direction are provided. With such a configuration, since the maximum height of the opening 65 is lower than the diameter of the spherical member 10, the spherical member 10 can be prevented from jumping out of the opening 65. In addition, if the spherical member 10 does not protrude outside, it is not always necessary to provide such a raised portion 40.

FIG. 18 is a plan view schematically showing only the bottom 31 of the container 30. As shown in FIG. 18, the opening 60 formed in the bottom 31 has a bowl-shaped outer shape. The opening 60 is symmetrical with respect to the center C ₁ of the bottom 31, has an elongated outer shape along the diagonal L ₂ , and includes two substantially circular regions 61 and 61 formed in a substantially circular shape. Between these two substantially circular regions 61, 61, a constricted portion 62 having a width narrower than that of the substantially circular regions 61, 61 is formed. The substantially circular regions 61 and 61 are located on the openings 65 and 65 side (positions close to the openings 65 and 65), respectively, and the diameter of the approximately circular region 61 is smaller than the diameter of the spherical member 10. The constricted part 62 is located in the center part of the bottom part 31 (position far from the openings 65 and 65). Thus, the opening 60 has a bowl-shaped outer shape that gradually increases in width toward the opening 65 side.

  FIG. 19 is a side view schematically showing an example of a state in which the door stopper 2 installed on the floor surface F holds the door 6 in place. In the example shown in FIG. 19, the part of the spherical member 10 exposed from the opening 60 and the floor surface F are in contact with each other in the region P, and the part of the spherical member 10 exposed from the opening 65 and the door surface 6 </ b> A of the door 6. Are in contact in region Q. As a result, the door 6 is held in place and locked by the frictional force between the spherical member 10 and the door surface 6A and the repulsive force of the spherical member 10 due to the frictional force between the spherical member 10 and the floor surface F. Will be.

  According to the door stopper 2 having such a configuration, for example, the user can throw the door stopper 2 in the vicinity of the door 6 in an upright state (without bending the body) and shift it with the tip of the foot. The door 6 in the middle of opening and closing can be locked at a desired position. At this time, as described above, the bottom portion 31 is formed of a plate-like member wider than the top portion 35 and the connecting portion 34, so even if the bottom portion 31 is thrown away or moved a little roughly with a foot tip or the like, the door The stopper 2 is installed in a state where the bottom 31 and the floor surface F are in surface contact without falling down.

  In addition, according to the present embodiment, even when the spherical member 10 and the door 6 are not in contact with each other at first, the container 30 is in contact with the spherical member 10 so that the door surface 6A and the spherical member 10 are in contact. Move relatively. For example, when the door surface 6A of the door 6 first comes into contact with the support column 32, the container 30 is pushed by the door 6, but a large frictional force is generated between the spherical member 10 and the floor surface F. The member 10 hardly moves. On the other hand, the container 30 moves relative to the spherical member 10 without touching the inner surface of the support column 32 by the constricted portion 62 of the bottom portion 31, and the constricted portion 62 of the bottom portion 31 moves to the spherical member. 10 contacts the outer surface. When the container 30 is further pushed by the door 6, the container 30 moves relative to the spherical member 10 while the constricted portion 62 of the bottom 31 is guided by the outer surface of the spherical member 10. At this time, since the opening 60 gradually becomes wider toward the opening 65, the container 30 is relative to the spherical member 10 so that the spherical member 10 moves to any one of the substantially circular regions 61. Move to. As a result, a part of the spherical member 10 is exposed from the opening 65. Eventually, a part of the spherical member 10 exposed from the opening 65 and the door surface 6A face each other, and a portion of the spherical member 10 exposed from the opening 65 comes into contact with the door surface 6A. Therefore, the door 6 is pressed and locked in that position by the frictional force between the spherical member 10 and the door surface 6A and the repulsive force of the spherical member 10 due to the frictional force between the spherical member 10 and the floor surface F. (State shown in FIG. 19).

As described above, according to the present embodiment, even when the spherical member 10 and the door 6 do not contact with each other at the beginning, the spherical member 10 moves from the center C ₁ of the bottom portion 31 and the container 30 is moved to the spherical member 10. As a result of relatively moving and rotating around the spherical member 10, the door surface 6A and the spherical member 10 come into contact with each other, and the door 6 can be pressed and locked. Therefore, it is not necessary to install the door stopper 2 on the floor surface F so that the portion of the spherical member 10 exposed from the opening 65 comes into contact with the door 6 first.

  As described above, according to the present embodiment, the door 6 can be held down without depending on the position of the door stopper 2, and the bottom 31 is formed wider than the connecting portion 34 and the top 35. Even if the door stopper 2 is thrown away or moved slightly roughly with a toe or the like, it will not fall down, so it is easy to install. Therefore, it is possible to save time and labor for bending to install at an appropriate position.

  When the door 6 first comes into contact with the part of the spherical member 10 exposed from the opening 65, the frictional force between the spherical member 10 and the door surface 6A and the spherical member 10 are Since the repulsive force of the spherical member 10 due to the frictional force with the floor surface F acts, the door 6 can be pressed and locked at the initial stage of contact.

In addition, although the container 30 is formed in cone shape in this embodiment, the external shape of the container 30 is not restricted to cone shape. In addition, the bottom 31 that has a substantially square outer shape in the present embodiment does not necessarily have to be substantially square. The number of openings 65 is not limited to two and may be one or three or more. In the present embodiment, the two struts 32, 32 that are separated from each other are provided to form two openings 65. For example, without forming such a strut 32, a single opening 65 is formed. You may comprise the door stopper which has the formed connection part. However, like the door stopper 2, by providing the two openings 65, 65 so as to face each other across the center C ₁ of the bottom 31, the contactable area between the door stopper 2 and the door 6 can be expanded. Therefore, it is preferable to provide at least two openings 65.

(Third embodiment)
20 is a side view showing the door stopper 3 in the third embodiment of the present invention, FIG. 21 is a bottom view of the door stopper 3 shown in FIG. 20, FIG. 22 is a front view, and FIG. 23 is C shown in FIG. -C sectional view, FIG. 24 is a sectional view taken along the line DD shown in FIG. 20 to 24 show a state in which the door stopper 3 is installed on the floor surface F (see FIG. 23).

  As shown in FIG. 20 to FIG. 24, the door stopper 3 includes a spherical member 10 and a container 70 that accommodates the spherical member 10 so as to be movable inside. The container 70 includes a bottom portion 71, a top portion 72, and a connecting portion 73 that connects the bottom portion 71 and the top portion 72. The container 30 has an elliptical outer shape (see FIGS. 20 and 21) when seen in a plan view and a side view, and has a perfect outer shape (see FIG. 22) when viewed from the front. And has a generally bowl-shaped outer shape in which the connecting portion 73 is curved outward from the bottom portion 71 and connected to the top portion 72. With such a configuration, the container 70 substantially contacts the floor surface F and rotates on the floor surface F along a curved outer periphery. Therefore, there is only a small friction force (second friction force) between the container 70 and the floor surface F compared to the friction force (first friction force) generated between the spherical member 10 and the floor surface F. Does not occur.

  A single opening 80 is formed below the container 70 in FIG. 20 so that a part of the spherical member 10 can be exposed. In the bottom view shown in FIG. 21, the opening 80 has an oval outer shape extending from the bottom 71 to the lower half of the connecting portion 73. That is, the opening 80 is formed by integrating the opening formed in the bottom 71 (bottom opening) and the opening formed in the connecting portion 73 (connecting portion opening). When the door stopper 3 is installed on the floor surface F, the bottom portion 71 substantially contacts the floor surface F, and the portion of the spherical member 10 exposed from the opening 80 contacts the floor surface F (FIG. 23). reference). In addition, as shown in FIG. 21, since the short axis of the ellipse of the opening 80 is formed to be shorter than the diameter of the spherical member 10, the spherical member 10 jumps out of the opening 80 to the outside. There is nothing.

  As shown in FIGS. 23 and 24, weights 90 and 90 (weighting portions) are provided on both sides of the spherical member 10 inside the lower half of the container 70, respectively. The weight 90 allows the opening 80 to always face downward when the door stopper 3 is installed on the floor F. Therefore, the portion of the spherical member 10 exposed from the opening 80 and the floor F are removed. It can be reliably contacted. Note that such a weight 90 is not necessarily provided.

  FIG. 25 is a bottom view schematically showing an example of a state in which the door stopper 3 installed on the floor surface F holds down the door 6, and FIG. 26 is a front view of FIG. 25. In the example shown in FIGS. 25 and 26, the portion of the spherical member 10 exposed from the opening 80 and the floor surface F are in contact with each other in the region P, and the portion of the spherical member 10 exposed from the opening 80 and the door of the door 6 are used. The surface 6A is in contact with the region Q. As a result, the door 6 is held in place and locked by the action of the frictional force generated from the two locations of the region P and the region Q and the repulsive force of the spherical member 10 against the pressing of the door 6.

  Hereinafter, the movement of the door 6 and the door stopper 3 in the closing process will be described in detail with reference to FIGS. 27A, 28A, and 29 schematically show the door stopper 3 and the door 6 as viewed from the bottom, and FIGS. 27B, 28B, and 30 are FIGS. 27A, 28A, respectively. And the state which looked at these from the side corresponding to FIG. 29 is shown typically.

  When using the door stopper 3, the user can throw the door stopper 3 toward the vicinity of the door 6 (without bending the body). For example, assume that the door stopper 3 is thrown on the floor surface F in the state shown in FIGS. 27A and 27B. At this time, since the weight 90 is provided in the vicinity of the opening 80 as described above, the opening 80 can be reliably directed to the floor surface F. When the door 6 is closed in this state, the door 6 first contacts the left end portion 74 of the door stopper 3. When the door 6 is further pushed from this state, only a small frictional force is generated between the container 70 and the floor surface F, so the container 70 moves (retreats) without resisting the pressing of the door 6. . As a result, the weight 90 and the spherical member 10 come into contact (see FIGS. 28A and 28B). Thereby, the spherical member 10 comes to receive the press of the door 6 (via the container 70). However, as described above, since a large frictional force (first frictional force) is generated between the spherical member 10 and the floor surface F, the spherical member 10 hardly moves even when the door 6 is pressed. Therefore, the container 70 that receives the pressing of the door 6 rotates in the horizontal direction (direction parallel to the floor surface F) around the spherical member 10 (see FIG. 29). In addition, as described above, the container 70 has a curved surface in which the bottom 71 comes into contact with the floor surface F and the connecting portion 73 protrudes outward, so that the door 6 is in contact with the spherical member 10. When it is pressed, it is not able to resist the pressing of the door and rotates in the vertical direction (direction perpendicular to the floor surface F) along the curved surface of the connecting portion 73 (see FIG. 30). That is, the container 70 rotates on the floor surface F in the horizontal direction and rotates on the floor surface F in the vertical direction so that the bottom 71 moves upward from the floor surface F (FIGS. 29 and 30). reference). As a result, as shown in FIGS. 25 and 26, the container 70 rotates in the horizontal direction and the vertical direction, respectively, and the portion of the spherical member 10 exposed from the opening 80 comes into contact with the door surface 6A. The portion of the spherical member 10 exposed from the opening 80 contacts the floor surface F. As a result, the frictional force between the spherical member 10 and the door surface 6A and the repulsive force of the spherical member 10 due to the frictional force between the spherical member 10 and the floor surface F act. Pressed and locked.

  In FIGS. 27A to 30, the case where the door 6 first contacts the left end portion 74 has been exemplarily described. However, even when the door 6 first contacts any position of the container 70, as described above. It goes without saying that the door 6 is pushed down through the process as shown in FIGS. Therefore, according to the present embodiment, the door 6 can be held down without depending on the position of the door stopper 3. Therefore, since the user can throw the door stopper 3 on the floor F and throw the door stopper 3 in any direction, the door 6 can be surely pressed down (excellent ease of installation). It is possible to save the trouble of crouching to install in a proper position.

  Although one embodiment of the present invention has been described so far, the present invention is not limited to the above-described embodiment, and may be implemented in various forms within the scope of the technical idea. Note that the terms “lower”, “upper”, “left”, and other terms indicating positional relationships used in this specification are used in the context of the illustrated embodiment, and are relative to the apparatus. It changes depending on the positional relationship.

1-4 Door stopper 6 Door 6A Door surface 6B Lower surface 10 Spherical member 20, 30, 70 Housing 21 Bottom surface 22 Upper surface 23 Front surface 24 Right surface 24A Inner surface 25 Rear surface 26 Left side surface 27 Joint portion 31 Bottom portion 32 Column portion 33 Dome portion 34 Connection part 35 Top part 40 Raised part 51-56, 60, 65, 66, 80 Opening part 61 Substantially circular area 62 Constriction part 71 Bottom part 72 Top part 73 Connection part 74 Left end part 90 Weight 200 Locking member 210 Bottom part 230 Front part 240 side Part 250 inclined surface

Claims (17)

A door stopper installed on the floor to lock the door,
A spherical member that exhibits a first frictional force against the floor;
The spherical member is accommodated therein and exhibits a second frictional force smaller than the first frictional force with respect to the floor surface, wherein the spherical member is a door surface of the door and the floor surface. A container having at least one opening for exposing a part of the spherical member so as to be able to contact
When the container is pushed by the door, the spherical member exposed from the opening is in contact with the door due to a difference in magnitude between the first and second frictional forces. A door stopper configured to move relative to the spherical member. The container includes a top, a bottom, and a connecting portion connecting the bottom and the top,
The at least one opening is
At least one bottom opening formed in the bottom;
The door stopper according to claim 1, further comprising at least one connecting portion opening formed in the connecting portion.   The door stopper according to claim 2, wherein the outer shape of the container is a hexahedron.   The door stopper according to claim 3, wherein the hexahedron is a cube.   The contact part which protrudes toward the outer side from this surface is provided in the surface which does not have the said connection part opening part among the several surfaces which comprise the said connection part, or Claim 3 characterized by the above-mentioned. 4. The door stopper according to 4.   The door stopper according to claim 5, wherein the contact portion has an inclined surface that descends downward from a surface that does not have the connecting portion opening.   The door stopper according to any one of claims 2 to 6, wherein the at least one opening includes at least one top opening formed in the top.   The door stopper according to any one of claims 1 to 7, wherein an outer shape of at least one of the at least one opening is a circle.   The door stopper according to claim 2, wherein the bottom portion is configured to project outward from outer edges of the top portion and the connecting portion.   The at least one bottom opening gradually increases in width toward the connection opening so that the spherical member moves relatively toward the connection opening during the relative movement. The door stopper according to claim 9.   The door stopper according to claim 9 or 10, wherein the at least one connecting portion opening is two connecting portion openings formed so as to face each other across the center of the bottom portion. The at least one bottom opening includes two substantially circular regions arranged in the vicinity of the two connecting portion openings, and the width between the two substantially circular regions is narrower than the substantially circular region. The door stopper according to claim 11, wherein a constricted portion is formed. The container is formed so as to come into contact with the floor surface by curving so that an outer peripheral surface thereof is convex toward the outside,
The door stopper according to claim 2 , wherein the relative movement includes movement of the container in a direction horizontal to and perpendicular to the floor surface.   The door stopper according to claim 13, wherein the container further includes a weighting portion provided in the vicinity of the at least one opening.   The door stopper according to claim 13 or 14, wherein the container is formed in a bowl shape. Wherein said at least one bottom opening and said at least one door stopper according to any one of claims 13 to 15, connecting opening is characterized in that it is formed integrally.   The door stopper according to any one of claims 1 to 16, wherein the spherical member is made of ethylene propylene diene monomer, polybutadiene rubber, or a combination thereof.

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