JP2013070975A - Fall-prevention device and fall-prevention structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrict the movement of a fall-prevention device for furniture which is caused by shaking.SOLUTION: The fall-prevention device 1 includes: a base 2 fixed to furniture 130 not to be displaceable; a contact part 4 brought into contact with a ceiling 110; and an adjustment part 3 for adjusting the height of the contact part 4 from the base 2. The contact part 4 includes a contact part body 41 eccentrically rotatable around a rotation axis extending in the height direction and is brought into contact with the ceiling 110.

Description

  The present invention relates to a fall prevention device and a fall prevention structure.

  Conventionally, various structures for preventing the fall of furniture and the like due to an earthquake are known. For example, Patent Document 1 describes a tipping prevention device that includes an extendable / contracting support and contact portions provided at both ends of the support. This fall prevention device expands and contracts the support so that the contact portions at both ends come into contact with the ceiling and the top plate of the furniture, respectively. In this way, the fall prevention device prevents the furniture from falling over by stretching the furniture and the ceiling. Since the fall prevention device is not completely fixed to the furniture and the ceiling, it can be flexibly applied to various types of furniture and the ceiling.

JP 9-28489 A

  By the way, the fall prevention device maintains the contact between the contact portion and the furniture or the ceiling by stretching the column. For this reason, if the furniture or the ceiling is shaken, the fall prevention device may move, and the tension state may not be maintained. As a measure for preventing the fall prevention device from moving, it is conceivable to bring the contact portion on the ceiling side of the fall prevention device into contact with the wall as well as the ceiling. By doing so, even if the fall prevention device vibrates, at least vibration toward the wall side can be suppressed.

  However, even if the contact portion on the ceiling side is brought into contact with not only the ceiling but also the wall, the fall prevention storage is not completely fixed to the ceiling and furniture, so the fall prevention device may gradually move due to vibration. . When the fall prevention device moves, a gap is gradually formed between the contact portion on the ceiling side and the wall. As a result, the contact portion on the ceiling side also vibrates toward the wall side, and the fall prevention device becomes easier to move.

  This invention is made | formed in view of this point, The place made into the objective is to suppress the movement of the fall prevention apparatus by a vibration.

  The present invention is directed to a fall prevention device for preventing furniture from falling. And this fall prevention device is provided with a base part fixed so that it cannot be displaced with respect to furniture, a contact part that is brought into contact with the ceiling, and an adjustment part that adjusts the height of the contact part from the base part, The contact portion has a contact portion main body that is eccentrically rotatable about a rotation axis extending in the height direction and is brought into contact with the ceiling.

  According to the above configuration, since the fall prevention device is fixed to the furniture through the base portion so as not to be displaced, the positional relationship between the fall prevention device and the furniture can be fixed. As a result, even if the fall prevention device vibrates due to an earthquake or the like, the fall prevention device can be prevented from moving with respect to the furniture.

  On the other hand, when the positional relationship between the fall prevention device and the furniture is fixed, it is difficult to simultaneously contact the wall when the contact portion of the fall prevention device is brought into contact with the ceiling. That is, a peripheral edge may be provided at the upper end of the wall. When the peripheral edge is provided, the contact portion on the ceiling side is brought into contact with the peripheral edge. However, the thickness of the peripheral edge varies. Furthermore, the peripheral edge may not be provided on the wall. That is, the dimension of the contact portion required for contacting the wall varies depending on the type of the peripheral edge and the presence or absence of the peripheral edge. Nevertheless, if the positional relationship between the fall-prevention device and the furniture is fixed, the fall-prevention device can be fitted to the furniture according to the presence or absence of the surrounding edge and the type of the surrounding edge in order to bring the contact portion into contact with the wall. Everything needs to be moved.

  On the other hand, according to the said structure, the said contact part main body is provided so that eccentric rotation with respect to the said rotating shaft is possible. Therefore, the dimension of the contact part in the direction orthogonal to the wall from the rotation axis can be adjusted by rotating the contact part. That is, the amount of protrusion of the contact portion toward the wall can be adjusted without moving the furniture. Thereby, a contact part can be made to contact a wall irrespective of the presence or absence of a surrounding edge, and the kind of surrounding edge. When the contact portion is in contact with the wall, the fall prevention device cannot vibrate to the wall side, and thus vibration of the fall prevention device can be suppressed. As a result, the contact between the contact portion and the ceiling can be maintained in an appropriate state.

  Therefore, in the said structure, the movement with respect to the furniture of the fall prevention apparatus resulting from a vibration etc. can be prevented by fixing the fall prevention apparatus to furniture so that it cannot displace. In addition, even if the contact body is configured to be eccentrically rotatable about the rotation axis extending in the height direction, the fall prevention device can be fixed to the furniture in a non-displaceable manner. Regardless of the type, the contact portion can contact not only the ceiling but also the wall. As a result, the contact between the contact portion and the ceiling can be maintained in an appropriate state.

  Another invention disclosed herein is directed to a fall prevention structure including a ceiling, a wall connected to the ceiling, furniture installed opposite to the wall, and the fall prevention device. In the fall prevention device, the base portion is fixed to the furniture so as not to be displaceable, and the contact portion main body is in contact with the ceiling and the wall.

  According to the above-described overturn prevention device, the size of the contact portion in the direction perpendicular to the wall from the rotation shaft can be adjusted by rotating the contact portion main body around the rotation shaft. Therefore, regardless of the presence or absence of the peripheral edge and the type of the peripheral edge, the contact portion body can be brought into contact with the wall when contacting the ceiling. In this configuration, even if the fall prevention device may vibrate due to an earthquake or the like, the fall prevention device cannot vibrate on the wall side, so that the vibration of the rolling prevention tool can be suppressed. As a result, the contact state between the contact portion and the ceiling can be maintained as much as possible, and the stretched state by the fall prevention device can be maintained.

  According to the fall prevention device, the furniture side of the fall prevention device is fixed to the furniture through the base portion so as not to be displaced. On the other hand, the ceiling side of the fall prevention device can be brought into contact with the ceiling while the contact portion is in contact with the wall regardless of the configuration of the wall. As a result, the fall prevention device can be prevented from moving, and the contact between the contact portion and the ceiling can be maintained in an appropriate state.

  According to the fall prevention structure, the furniture side of the fall prevention device is fixed to the furniture through the base portion so as not to be displaced. On the other hand, the ceiling side of the fall prevention device can be brought into contact with the ceiling while the contact portion is in contact with the wall regardless of the configuration of the wall. As a result, the fall prevention device can be prevented from moving, and the contact between the contact portion and the ceiling can be maintained in an appropriate state.

It is the perspective view which looked at the fall prevention structure concerning an embodiment from the front side. It is the perspective view which looked at the furniture which attached the fall prevention device from the back side. It is the fragmentary sectional view which cut | disconnected the fall prevention apparatus by the plane along a rotating shaft. It is a perspective view of the fall prevention device of the state where the contact part was extracted from the spacer. It is a top view of a contact part. It is a figure which shows the fall prevention structure in case a surrounding edge is provided in the wall. It is a figure which shows the fall prevention structure in case another kind of surrounding edge is provided in the wall.

  Hereinafter, exemplary embodiments will be described in detail with reference to the drawings. The perspective view which looked at the fall prevention structure 100 which concerns on FIG. 1 from the front side is shown in FIG. 1, and the perspective view which looked at the furniture 130 which attached the fall prevention apparatus 1 from the back side is shown in FIG.

  The fall prevention structure 100 includes a ceiling 110, a wall 120 connected to the ceiling 110, furniture 130 installed opposite to the wall 120, and two fall prevention devices 1, 1 for preventing the furniture 130 from falling. ing.

  The upper edge of the wall 120A is connected to the ceiling 110. The angle formed between the ceiling 110 and the wall 120A is substantially a right angle. The wall 120A shown in FIG. 1 is composed of a wall main body 121 and is not provided with a peripheral edge to be described later.

  The furniture 130 is a substantially rectangular parallelepiped wooden shelf. The furniture 130 includes a substantially rectangular top plate 131, two side plates 132 and 132 connected to both short sides of the top plate 131, and a back plate 133 connected to the long side on the back side of the top plate 131, It has at least a plurality of shelf plates 134, 134,... Provided between the side plates 132, 132. The front side of the furniture 130 may be referred to as “front” and the back side may be referred to as “rear”. The rear end portions of the side plates 132 and 132 protrude from the top plate 131 toward the back side. The fall prevention device 1 is attached to a portion of each side plate 132 that protrudes to the back side of the top plate 131.

  3 is a partial cross-sectional view of the overturn prevention device 1 cut along a plane along the rotation axis, FIG. 4 is a perspective view of the overturn prevention device 1 in a state where the contact portion 4 is extracted from the spacer 32, and FIG. The top view of the contact part 4 is shown.

  The fall prevention device 1 includes a base portion 2 attached to the furniture 130, a contact portion 4 brought into contact with the ceiling 110, and an adjustment portion 3 that adjusts the height of the contact portion 4 from the base portion 2.

  The base part 2 is a metal member having a substantially rectangular parallelepiped shape. The base part 2 is fixed to the furniture 130 so as not to be displaced. Specifically, the base portion 2 is disposed at a corner portion formed by a portion of the side plate 132 that protrudes to the back side from the top plate 131 and the back plate 133. The base portion 2 is bolted to the side plate 132. That is, the base portion 2 is fixedly attached to the side plate 132 on the back side of the back plate 133 and inside the side plate 132. The upper end surface of the base part 2 is substantially flush with the top plate 131. Further, the rear end surface of the base portion 2 is substantially flush with the rear end of the side plate 132.

  The adjusting unit 3 includes a male screw 31 provided on the base unit 2 and a spacer 32 that is screwed with the male screw 31.

  The male screw 31 is provided on the upper end surface of the base portion 2. The male screw 31 extends upward from the upper end surface of the base portion 2.

  The spacer 32 is a columnar metal member. The cross section of the spacer 32 has a substantially hexagonal shape. A female screw 33 is drilled in the axial direction of the spacer 32 at the lower end surface of the spacer 32. The female screw 33 is configured to be screwed with the male screw 31. That is, the spacer 32 is attached to the base portion 2 by screwing the female screw 33 with the male screw 31. Then, by rotating the spacer 32 around its axis, the spacer 32 moves up and down. Thus, the height direction position of the spacer 32 from the base portion 2 is adjusted. That is, the adjustment unit 31 has a screw mechanism including a male screw 31 and a female screw 33, and the height of the spacer 32 can be adjusted by this screw mechanism. On the other hand, a circular hole 34 having a circular cross section is formed in the upper end surface of the spacer 32 in the axial direction of the spacer 32. The contact portion 4 is disposed on the upper end of the spacer 32 through the round hole 34.

  The contact portion 4 includes a contact portion main body 41 that is brought into contact with the ceiling 110, and a rotating shaft 42 that is coupled to the contact portion main body 41.

  The contact portion main body 41 has a substantially rectangular shape in plan view, and has four sides 41a to 41d. Specifically, the contact portion main body 41 includes a metal plate 43 having a substantially rectangular shape in plan view and a resin plate 44 having a substantially rectangular shape in plan view. The resin plate 44 has a smaller area than the metal plate 43. The resin plate 44 is bonded to the upper surface of the metal plate 43. Four sides of the metal plate 43 constitute four sides 41 a to 41 d of the contact portion main body 41. When the contact part main body 41 contacts the ceiling 110, the resin plate 44 contacts the ceiling 110. The resin plate 44 is made of, for example, an elastomer, and functions as an anti-slip between the resin plate 44 and the ceiling 110 and also has a function of damping vibration.

  The rotating shaft 42 is connected to the lower surface of the metal plate 43. The outer diameter of the rotating shaft 42 is smaller than the inner diameter of the round hole 34 of the spacer 32. As shown in FIG. 5, the rotating shaft 42 is coupled to a position that is eccentric with respect to the center of gravity G of the metal plate 43. The rotation shaft 42 is a distance to each of the four sides 41a to 41d of the contact portion main body 41 (a distance from the connecting portion of the rotation shaft 42 to the contact portion main body 41 to each side in the direction of a perpendicular line extending to each side). Are different from each other. In this embodiment, the distance La from the rotation shaft 42 to the side 41a is the longest, and the distance Lb to the side 41b, the distance Lc to the side 41c, and the distance Ld to the side 41d are shortened in this order.

  In the contact portion 4 configured as described above, the rotating shaft 42 is inserted into the round hole 34 of the spacer 32. All the rotating shafts 42 are inserted into the spacers 32, and the metal plate 43 is placed on the upper end surface of the spacers 32. Since the rotation shaft 42 has a smaller diameter than the round hole 34, the contact portion 4 is provided to be rotatable with respect to the spacer 32. Here, since the contact portion main body 41 is eccentric with respect to the rotation shaft 42, the contact portion main body 41 is configured to be eccentrically rotatable about the rotation axis X extending in the height direction with respect to the spacer 32. The rotation axis X coincides with the axis of the round hole 34.

  Next, the installation of the furniture 130 and the fall prevention device 1 configured as described above will be described.

  The furniture 130 is installed with the back plate 133 facing the wall 120A. At this time, the furniture 130 is installed as close to the wall 120A as possible, preferably in contact with the wall 120A. In this embodiment, the rear ends of the side plates 132, 132 are in contact with the wall 120A. At this stage, the contact portion main body 41 is lower than the ceiling 110 and is not in contact with the ceiling 110.

  At this time, the contact portion main body 41 is disposed such that the side 41a having the longest distance from the rotating shaft 42 among the four sides 41a to 41d faces the wall 120A. The distance La from the rotation shaft 42 to the side 41a is equal to the distance from the rotation shaft 42 to the rear end of the side plate 132 in the direction orthogonal to the wall 120A. Therefore, when the rear end of the side plate 132 is in contact with the wall 120A, the side 41a of the contact portion main body 41 is also in contact with the wall 120A.

  Then, the spacer 32 is rotated around the axis of the spacer 32 using a spanner or the like. At this time, the spacer 32 is rotated in the direction in which the spacer 32 is displaced upward. As the spacer 32 rotates, the spacer 32 moves upward, and at the same time, the contact portion 4 also moves upward. Here, since the contact part 4 is rotatably provided with respect to the spacer 32, even if the spacer 32 rotates, the contact part 4 does not rotate and the contact between the side 41a and the wall 120A is maintained. .

  Eventually, the contact portion 4 comes into contact with the ceiling 110. At this time, the contact portion 4 is also in contact with the wall 120A via the side 41a. Thus, the installation of the furniture 130 and the overturn prevention device 1 is completed.

  When the installation is completed in this manner, the fall prevention device 1 is in a state of stretching the furniture 130 against the ceiling 110. Therefore, the furniture 130 is prevented from falling. Furthermore, since the furniture 130 side of the fall prevention device 1 is fixed to the furniture 130 through the base portion 2 so as not to be displaced, even if the fall prevention device 1 vibrates due to an earthquake or the like, the fall prevention device 1 is installed in the furniture 130. Can be prevented from moving. On the other hand, on the ceiling 110 side of the fall prevention device 1, the contact portion 4 is in contact with not only the ceiling 110 but also the wall 120A. Therefore, even if the fall prevention device 1 vibrates due to an earthquake or the like, the fall prevention device 1 cannot vibrate toward the wall 120 </ b> A, so that the vibration of the fall prevention device 1 can be suppressed. Thereby, the contact between the fall prevention device 1 and the ceiling 110 can be maintained in an appropriate state. In this way, the stretched state of the ceiling 110 and the furniture 130 by the fall prevention device 1 can be maintained. As a result, even when the fall prevention device 1 vibrates due to an earthquake or the like, the furniture 130 can be prevented from falling.

  Further, the contact portion 4 is in line contact with the wall 120A via the side 41a. Therefore, even if the fall prevention device 1 vibrates, the contact portion 4 is prevented from rotating around the rotary shaft 42. As a result, the rotation of the spacer 32 is also prevented, and it is possible to prevent the stretched state of the ceiling 110 and the furniture 130 by the fall prevention device 1 from being loosened. That is, in the configuration in which the height of the contact portion 4 is adjusted by the screw mechanism as in the present embodiment, when the contact portion 4 is rotated, the screw mechanism is also rotated, and the ceiling 110 by the fall prevention device 1 is rotated. In addition, the tension state of the furniture 130 may be loosened. On the other hand, in the present embodiment, in the fall prevention device 1 including the adjustment unit 3 that can be adjusted in height by a screw mechanism, the contact unit main body 41 that contacts the ceiling 110 is brought into line contact with the wall 120A, thereby the contact unit. It is possible to prevent the main body 41 from rotating around the rotation shaft 42. Thereby, rotation of the spacer 32 resulting from rotation of the contact part main body 41 can be prevented. Here, if the fall prevention apparatus 1 moves with respect to the furniture 130, the contact part 4 and the wall 120A will separate, and the contact part main body 41 will be in the state which can rotate. On the other hand, by fixing the toppling prevention device 1 to the furniture 130 so as not to be displaceable, it is possible to maintain a state in which the contact portion main body 41 makes a line contact with the wall 120A and cannot rotate. In this way, it is possible to prevent the stretched state of the ceiling 110 and the furniture 130 by the fall prevention device 1 from being loosened. That is, by bringing the contact portion main body 41 into line contact with the wall 120A, the effect of suppressing the vibration of the fall prevention device 1 and the effect of preventing the contact portion main body 41 from rotating are exhibited.

  Further, the contact portion 4 is configured to be eccentrically rotatable about the rotation shaft 42 as a rotation axis. As a result, the contact portion 4 has four sides 41 a to 41 d with different distances from the rotary shaft 42. Therefore, regardless of the configuration of the upper end portion of the wall 120A, the contact portion 4 can be brought into contact with the wall 120A while being brought into contact with the ceiling 110. As a configuration of the upper end portion of the wall different from the wall 120A shown in FIG. 1, there is a configuration in which a peripheral edge is provided on the wall. That is, the wall 120 </ b> B illustrated in FIG. 6 includes a wall main body 121 and a peripheral edge 122 </ b> B provided at the upper end portion of the wall main body 121. In addition, there are various types of margins, not just one. For example, the wall 120C illustrated in FIG. 7 includes a wall main body 121 and a peripheral edge 122C that is provided at the upper end of the wall main body 121 and is thicker than the peripheral edge 122B. It should be noted that the walls 120A, 120B, and 120C are simply referred to as “walls 120” without distinction when the presence / absence of the surrounding edges and the type of the surrounding edges are distinguished, that is, when referring to the walls in general. Since these peripheral edges 122B and 122C are provided at the upper end portion of the wall main body 121, the furniture 130 is installed in contact with the wall main body 121 regardless of the presence or absence of the peripheral edges and the type of the peripheral edges. That is, the positional relationship between the furniture 130 and the wall 120 is constant regardless of the presence or absence of the surrounding edge and the type of the surrounding edge. On the other hand, in the configuration in which the contact portion 4 is in contact with the upper end portion of the wall 120, when the peripheral edge is not provided, the contact portion 4 comes into contact with the wall body 121, and the peripheral edges 122B and 122C are provided. In this case, the contact portion 4 comes into contact with the peripheral edges 122B and 122C. That is, the distance from the rotary shaft 42 to the wall 120 is the distance from the rotary shaft 42 to the wall body 121 when no peripheral edge is provided, and when the peripheral edges 122B and 122C are provided, The distance is from the rotating shaft 42 to the peripheral edges 122B and 122C.

  Here, the contact portion main body 41 is configured to be eccentrically rotatable around the rotation shaft 42. That is, by rotating the contact part main body 41, the dimension of the contact part main body 41 in the direction orthogonal to the wall 120 from the rotation shaft 42 can be changed. Here, the distance Lb from the rotation shaft 42 to the side 41b of the contact portion main body 41 is set to the distance from the rotation shaft 42 to the peripheral edge 122B in a state where the rear end of the side plate 132 of the furniture 130 is in contact with the wall 120. ing. Further, the distance Lc from the rotation shaft 42 to the side 41c of the contact portion main body 41 is set to the distance from the rotation shaft 42 to the peripheral edge 122C in a state where the rear end 132 of the furniture 130 is in contact with the wall 120. Yes. Further, the distance Ld from the rotating shaft 42 to the side 41d of the contact portion main body 41 is different from the rotating shaft 42 in a state where the rear end of the side plate 132 of the furniture 130 is in contact with the wall 120 in another turn thicker than the peripheral edge 122C. The distance to the edge is set. That is, when the wall 120 has the peripheral edge 122 </ b> B, the contact portion main body 41 is rotated so that the side 41 b faces the wall 120. By doing so, as shown in FIG. 6, when the contact part main body 41 contacts the ceiling 110, the contact part main body 41 contacts the peripheral edge 122B via the side 41b. When the wall 120 has the peripheral edge 122 </ b> C, the contact portion main body 41 is rotated so that the side 41 c faces the wall 120. By doing so, as shown in FIG. 7, when the contact part main body 41 contacts the ceiling 110, the contact part main body 41 contacts the peripheral edge 122C via the side 41c. Further, when the wall 120 has another peripheral edge, the contact portion main body 41 is rotated so that the side 41 d faces the wall 120. By doing so, when the contact part main body 41 contacts the ceiling 110, the contact part main body 41 contacts the peripheral edge via the side 41d. Thus, by rotating the contact portion main body 41 around the rotation shaft 42, the contact portion main body 41 can be brought into contact with the wall 120 regardless of the presence or absence of the peripheral edge and the type of the peripheral edge. That is, the vibration of the overturn prevention device 1 can be suppressed as described above regardless of the presence or absence of the surrounding edge and the type of the surrounding edge. Furthermore, by making the distance from the rotating shaft 42 to each side of the contact portion main body 41 correspond to the presence / absence of the peripheral edge and the type of peripheral edge, the contact portion main body 41 regardless of the presence / absence of the peripheral edge and the type of peripheral edge. Can be in line contact with the wall 120. That is, regardless of the presence or absence of the peripheral edge and the type of the peripheral edge, as described above, the contact portion main body 41 is prevented from rotating around the rotary shaft 42 and the ceiling 110 and the furniture 130 are stretched by the fall prevention device 1. Can be prevented from loosening.

<< Other Embodiments >>
The present invention may be configured as follows with respect to the embodiment.

  For example, the furniture 130 is a wooden shelf, but is not limited thereto. That is, the furniture 130 may be any tool as long as it is a tool that needs to prevent falling. For example, the furniture in the present invention may include home appliances such as a refrigerator.

  Further, although the furniture 130 is installed in a state of being in contact with the wall main body 121, the furniture 130 may be installed apart from the wall main body 121.

  Moreover, although the said fall prevention apparatus 1 is attached to the rear-end part of the side plate 132 from the inner side, it is not restricted to this. The fall prevention device 1 may be attached to the side plate 132 from the outside or may be attached to the back plate 133. That is, the fall prevention device 1 may be attached to any part of the furniture 130.

  Moreover, although the said contact part main body 41 is formed in planar view substantially rectangular shape, it is not restricted to this. As long as the contact part main body 41 is eccentric with respect to the rotating shaft 42, it can be formed in arbitrary shapes. For example, the contact portion main body 41 may be substantially circular in plan view or substantially elliptical in plan view. However, the contact part main body 41 preferably has a planar shape with sides from the viewpoint of not only contacting the contact part main body 41 with the wall 120 having various configurations but also preventing the contact part main body 41 from rotating. This is because the contact part main body 41 can be prevented from rotating by bringing the side of the contact part main body 41 into contact with the wall 120. For example, the contact portion main body 41 may be triangular or hexagonal in plan view. However, in order to enable contact with various types of peripheral edges, a shape having a large number of sides with different distances from the rotation axis is preferable.

  Moreover, although the contact part main body 41 is comprised with the metal plate 43 and the resin plate 44, it is not restricted to this. For example, the contact part main body 41 may be comprised only with the metal or resin.

  The base portion 2 is bolted to the furniture 130, but is not limited thereto. That is, the base part 2 can be attached to the furniture 130 by an arbitrary method as long as it is fixed to the furniture 130 so as not to be displaced. For example, the base part 2 may be attached to the furniture 130 by bonding. The base unit 2 may be integrally formed with the furniture 130.

  Although the said adjustment part 3 is comprised with the external thread 31 and the spacer 32, it is not restricted to this. In other words, the adjustment unit 3 can employ any configuration as long as the height of the contact unit 4 can be adjusted. For example, a configuration in which a female screw is drilled in the upper end surface of the base portion 2 instead of the male screw 31 and a male screw is provided in the lower end of the spacer 32 may be employed. Even in such a configuration, it is possible to adjust the height of the spacer 32 by screwing the male screw of the spacer 32 with the female screw of the base portion 2, and consequently adjust the height of the contact portion 4. can do. Moreover, as a screw mechanism, you may employ | adopt not only a single thread screw but a double thread. By employing a double thread, it is possible to make it difficult to loosen the screw. Moreover, the adjustment part 3 is not restricted to metal, Resin may be sufficient. It is preferable to fasten the spacer 32 and the male screw 31 by screwing a tapping screw inward in the radial direction from the outer peripheral surface of the spacer 32. By doing so, the rotation of the spacer 32 can be prevented. Moreover, the adjustment part 3 may be comprised so that height adjustment is possible with an air cylinder or a spring instead of a screw mechanism.

  Moreover, in the said embodiment, although the contact part 4 is made to contact not only the ceiling 110 but the wall 120, it is not restricted to this. For example, although the contact part main body 41 is brought into contact with the ceiling 110, a gap may be provided between the wall 120 and the contact part main body 41. However, at this time, when the side of the contact portion main body 41 is opposed to the wall 120 and the contact portion main body 41 rotates through the gap between the contact portion main body 41 and the wall 120, the end of the side of the contact portion main body 41 becomes the wall. The gap is set to be equal to or smaller than the gap at which the rotation of the contact portion main body 41 is prevented. By doing so, the contact portion main body 41 can be prevented from rotating without the contact portion main body 41 being in contact with the wall 120. Further, the displacement of the contact portion main body 41 toward the wall 120 is limited by the wall 120. That is, since the displacement of the contact portion main body 41 toward the wall 120 can be suppressed without bringing the contact portion main body 41 into contact with the wall 120, the vibration of the overturn prevention device 1 can be suppressed.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or its use.

  As described above, the present invention is useful for the fall prevention device and the fall prevention structure.

DESCRIPTION OF SYMBOLS 100 Fall prevention structure 110 Ceiling 120 Wall 130 Furniture 2 Base part 3 Adjustment part 4 Contact part 41 Contact part main body 41a Side 41b Side 41c Side 41d Side X Rotation axis

Claims (5)

A fall prevention device for preventing the fall of furniture,
A base portion that is fixed so that it cannot be displaced with respect to furniture;
A contact portion that is brought into contact with the ceiling;
An adjustment unit for adjusting the height of the contact unit from the base unit,
The said contact part is a tipping prevention apparatus which has a contact part main body which can be eccentrically rotated around the rotating shaft extended in a height direction, and is made to contact a ceiling. The fall prevention device according to claim 1,
The said adjustment part is a fall prevention apparatus which has a screw mechanism in which height adjustment is possible by rotating. In the fall prevention device of Claim 2,
The contact part main body is a fall prevention device having a plurality of sides with different distances from the center of rotation. A fall prevention structure comprising a ceiling, a wall connected to the ceiling, furniture installed opposite to the wall, and the fall prevention device according to any one of claims 1 to 3,
In the fall prevention device, the base portion is fixed to the furniture so as not to be displaced,
The contact portion main body is in contact with the ceiling and is in contact with the wall. A fall prevention structure comprising a ceiling, a wall connected to the ceiling, furniture installed opposite to the wall, and the fall prevention device according to claim 3,
In the fall prevention device, the base portion is fixed to the furniture so as not to be displaced,
The contact part body is in contact with the ceiling, and one of the plurality of sides is in contact with the wall.

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