JP2016047195A - Fall prevention device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve usability when attaching a fall prevention device.SOLUTION: A rail member 6 is provided along a cross direction above furniture 1 on a ceiling wall 3. A first base part 11 to be placed on an upper face of the furniture 1 is arranged at one end of a damper 8, and a second base part 13 to be connected to a side of the rail member 6 is arranged at the other end thereof. The second base part 13 has a slider 14 capable of sliding along the rail member 6. A setscrew 21 is fitted into the slider 14 via a slit 20 of the rail member 6, and by positioning the slider 14 at an arbitrary position, an attaching position of the damper 8 to the rail member 6 can be freely adjusted, and thereby the damper 8 can be set at an appropriate attachment angle.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fall prevention device for preventing the fall of furniture or the like.

  The following patent document 1 can be mentioned as a conventional fall prevention device. Here, an overturn prevention device having a configuration including an upper base plate, a lower base plate, and a column attached between the upper and lower base plates is disclosed.

Utility Model Registration No. 3028334

  In the above-described fall prevention device, the furniture is prevented from overturning by applying a spring force between the furniture and the ceiling wall. Therefore, since both ends of the fall prevention device are held only by the frictional force, there is a possibility of causing a shift. As a countermeasure, at least one end side, for example, the ceiling wall side of the fall prevention device, may be a fixed end. Specifically, it is conceivable to attach a bracket to the ceiling wall side and connect the end portion of the fall prevention device to this bracket.

  However, with such a countermeasure, once the bracket is attached to the ceiling wall, the attachment position cannot be changed, so that there is a problem in that it is not easy to use when attaching the fall prevention device.

  The present invention has been completed based on the above-described circumstances, and an object thereof is to provide a fall prevention device that is excellent in ease of use in installation.

The overturn prevention device of the present invention includes an overturn prevention tool that is interposed between an upper surface of an article and a ceiling wall and exhibits a function of preventing the article from overturning. A first base portion connected to the upper surface of the article is provided on one end side of the fall prevention tool. On the other end of the fall prevention tool,
A second base portion is provided in which an attachment position to the fixing member whose arrangement direction with respect to the ceiling wall is one direction can be changed with respect to the arrangement direction of the fixing member.

  Here, the term “connection between the tipping prevention device and the article” means that the end of the tipping prevention device on the article side does not easily move with respect to the article, and is screwed, bolted, riveted, In addition to hooking using a hook or the like, the concept includes a state in which the article is simply abutted against an article or a fixed portion and is not easily moved by a frictional force. The term “article” includes furniture, bed, large TV, refrigerator, bookcase, showcase, server rack, and the like that may fall down due to the occurrence of an earthquake or the like.

  In the fall prevention device of the present invention, the end portion of the fall prevention tool on the article side is connected to the upper surface of the article by the first base portion, and the end portion on the ceiling wall side is provided on the ceiling wall by the second base portion. By being attached to, the articles can be prevented from falling. Particularly, since the mounting position of the second base portion can be changed with respect to the fixing member disposed along one direction of the ceiling wall, the flexibility when connecting the fall prevention device to the ceiling wall side is improved. Can do.

  In the overturn prevention device, the fixing member is a rail member formed so as to extend in one direction and a cross section is formed in a channel shape, and the second base portion has a continuous mounting position along the extending direction of the rail member. It is preferable that the configuration can be changed.

  According to such a structure, since the attachment position of the 2nd base part with respect to a rail member can be changed continuously, the convenience on the attachment of a fall prevention apparatus can be improved further.

  Further, in the overturn prevention device, the second base portion has a slider that is fitted inside the rail member and can be displaced along the rail member, and the slider rotates so that the channel groove of the rail member It may be possible to displace between a retaining position where the retaining edge is locked to the inside of the opening edge of the opening and an attaching / detaching position where it can be incorporated into and removed from the opening of the channel groove.

  According to such a configuration, after the rail member is attached to the ceiling wall side, the slider of the second base portion is placed in the attachment / detachment position with respect to the rail member, thereby being fitted into the rail member through the opening of the channel groove. be able to. After the fitting, the slider, that is, the whole tipping prevention tool can be attached to the rail member in a state of being prevented from coming off by rotating the slider and displacing it to the retaining position.

Side sectional view which shows the state in which the damper was set in Embodiment 1. Sectional drawing which similarly shows the connection structure of a rail member and a damper side Sectional drawing which shows the state which looked at the assembly structure of a rail member and a slider from the lower surface side of the rail member Side sectional view which shows the state in which the damper was set in Embodiment 2.

Next, Embodiment 1 and Embodiment 2 that embody the fall prevention device of the present invention will be described with reference to the drawings.
<Embodiment 1>
1 to 3 show a tipping prevention device according to Embodiment 1 of the present invention. The fall prevention device of the first embodiment is intended to prevent the furniture 1 (article) from falling over due to an earthquake or the like. The furniture 1 shown in the figure has a rectangular parallelepiped shape with a smaller depth dimension in the front-rear direction (a dimension in the left-right direction in FIG. 1 and the like) than in the height direction. Therefore, the direction indicated by the arrow P in FIG. 1 is the direction in which the furniture 1 is assumed to fall. In the following description, the right side in FIG. 1 is called “front” and the left side is called “rear”.

  The furniture 1 is installed in the interior of a house with a small gap from the side wall 2 with the side wall 2 as the back. An interval is also set between the upper surface of the furniture 1 and the ceiling wall 3 in the room. As shown in FIG. 2, the ceiling wall 3 is supported by hanging horizontally from a frame beam 4 via a suspension fitting 5. The illustrated hanging metal fitting 5 extends along the front-rear direction as shown in FIG. Flange 5 </ b> A is formed to project from both upper and lower ends of the suspension fitting 5, and both flanges 5 </ b> A are formed over the entire length of the suspension fitting 5.

  A rail member 6 (fixing member) is attached to the ceiling wall 3 above the furniture 1. The rail member 6 is extended along the length region where the lower flange 5A of the suspension fitting 5 is in contact with the ceiling wall 3, that is, along the front-rear direction, and the screws 7 are arranged at a constant pitch. It is fixed to the ceiling wall 3 by tightening.

  One end side of a damper 8 (falling prevention tool) is connected to the rail member 6. The damper 8 has a bottomed cylindrical cylinder 9 filled with hydraulic oil (working fluid), a piston (not shown) slidably inserted into the cylinder 9, and a base end connected to the piston. A tip 10 is provided with a rod 10 protruding to the outside of the cylinder 9. The damper 8 further includes a rod guide (not shown) that seals the opening on the tip side of the cylinder 9 and a seal member (not shown) that seals between the inner periphery of the rod guide and the outer periphery of the rod 10. I have.

  The damper 8 generates a damping force as it contracts. Here, the contraction operation of the damper 8 means an operation in which the protruding length of the rod 10 from the cylinder 9 and the entire length of the damper 8 become shorter. Since the mechanism for generating the damping force of the damper 8 has a well-known structure, a description thereof is omitted. The inside of the cylinder 9 is partitioned by a piston into a rod side pressure chamber (not shown) that accommodates the proximal end portion of the rod 10 and an anti-rod side pressure chamber. The piston is formed with an orifice (not shown) that is a throttle valve for communicating between the two pressure chambers. The orifice functions as a damping force generator that generates a damping force by applying resistance to the flow of hydraulic oil between the rod-side pressure chamber and the non-rod-side pressure chamber accompanying the expansion / contraction operation of the damper 8.

  The piston is provided with a check valve (not shown). When the damper 8 contracts, the check valve closes, and the flow of hydraulic oil from the non-rod side pressure chamber to the rod side pressure chamber in the check valve is prevented. Accordingly, during the contracting operation, the flow path of the hydraulic oil from the non-rod side pressure chamber to the rod side pressure chamber is only the orifice. The check valve opens when the damper 8 extends to allow the hydraulic oil to flow from the rod-side pressure chamber to the non-rod-side pressure chamber. Here, the extension operation of the damper 8 means an operation in which the protruding length of the rod 10 from the cylinder 9 and the entire length of the damper 8 become longer. In addition, a spring (not shown) is provided in the rod-side pressure chamber to generate elasticity that resists the extension operation as the damper 8 extends.

  A first base portion 11 is provided on the protruding end side (furniture 1 side) of the rod 10 in the damper 8, and is connected to the protruding end portion of the rod 10 so as to be rotatable by a first pin 12. The 1st base part 11 is formed in a substantially disk shape, The lower surface is formed flat, and it abuts on the upper surface of the furniture 1 in the surface contact state.

  On the other hand, a second base portion 13 that is movable along the rail member 6 is provided at an end portion of the damper 8 on the cylinder 9 side (end portion on the ceiling wall 3 side). The second base portion 13 includes a slider 14 that can move along the rail member 6 and a connecting piece 16 that protrudes from the lower surface of the slider 14. The connecting piece 16 is rotatably connected by a second pin 15 to a connecting bracket 17 attached to the end of the cylinder 9 of the damper 8.

  The rail member 6 is made of a metal such as an aluminum alloy, for example. As shown in FIG. 2, the rail member 6 is formed in a channel shape having a substantially C-shaped cross section, and the channel groove 18 that opens along the longitudinal direction is opened downward. It is attached to the ceiling wall 3 in such a posture. A pair of slits 20 are provided on both side pieces 6A of the rail member 6, and these are formed so as to penetrate a predetermined length range along the front-rear direction. When the slider 14 is in a retaining position to be described later, screw holes 14A are formed on both sides of the rail member 6 facing both side pieces 6A. With respect to the slider 14, the set screw 21 is tightened through both slits 20, and the slider 14 is tightened until the head portion 21 </ b> A of the set screw 21 comes into pressure contact with the outer surfaces of both side pieces of the rail member 6. Can be fixed to an arbitrary position of the rail member 6.

  As shown in the bottom view of FIG. 3, the slider 14 has a shape that is long on one side and short on the other. The length of the long side of the slider 14 is formed longer than the groove width of the channel groove 18, and the length of the short side is formed shorter than the groove width of the channel groove 18. The slider 14 is chamfered at four corners 19 and can be rotated inside the rail member 6. At a position where the long side direction of the slider 14 is directed to the longitudinal direction of the rail member 6 (position indicated by an imaginary line in FIG. 3: attachment / detachment position), the slider 14 can be incorporated into the rail member 6. Conversely, it can be removed from the rail member 6. The slider 14 is rotated approximately 90 degrees from the state in which the slider 14 is assembled in the rail member 6 at the attachment / detachment position, and the position in which the short side direction faces the longitudinal direction of the rail member 6 (the position indicated by the solid line in FIG. 3). : The retaining position), the slider 14 is retained from the rail member 6. Further, when the slider 14 is in the retaining position, the both screw holes 14A face the corresponding slits 20 in the rail member 6.

  Next, an example of the work in the case of setting the fall prevention device between the furniture 1 and the ceiling wall 3 in the fall prevention device according to the first embodiment configured as described above will be described. First, the rail member 6 is previously attached along the front-rear direction at a corresponding portion of the ceiling wall 3 above the furniture 1. Thereafter, an operation of connecting the second base portion 13 of the damper 8 to the rail member 6 is performed. In this operation, the both set screws 21 are removed from the slider 14. In this state, the slider 14 is opposed to the channel groove 18 of the rail member 6 at the attachment / detachment position (position indicated by an imaginary line in FIG. 3). Then, the slider 14 is fitted into the rail member 6 through the channel groove 18. Thereafter, when the entire damper 8 is rotated approximately 90 degrees around the central axis in the vertical direction, the slider 14 reaches the retaining position (the position indicated by the solid line in FIG. 3) and is connected to the rail member 6 in the retaining state. Is done. At this time, both screw holes 14A of the slider 14 face the corresponding slits 20 and the set screws 21 are shallowly tightened into the both screw holes 14A via the slits 20.

  On the other hand, the first base portion 11 of the damper 8 is placed on the upper surface of the furniture 1. As a result, the damper 8 is interposed between the ceiling wall 3 side and the furniture 1 side, and the posture of the damper 8 at this time is a predetermined inclination angle range (15 degrees to 25 degrees with respect to the vertical direction). ) Is preferable. In such a case, by sliding the slider 14 along the rail member 6, the mounting angle of the damper 8 can be easily adjusted to the optimum angle range. Thereafter, the slider 14 is fixed to the rail member 6 by tightening the two set screws 21 and bringing the head 21 </ b> A of the set screw 21 into pressure contact with both side pieces of the slider 14. Thus, the damper 8 can be held in a desired inclined posture.

  As described above, the damper 8 set between the furniture 1 and the ceiling wall 3 is arranged such that when an earthquake occurs and the furniture 1 tries to tilt forward (in the direction of arrow P in FIG. 1), the damper 8 becomes a rod. A damping force is generated to act to contract 10. For this reason, the inclination angle and inclination speed to the front of the furniture 1 are suppressed, and the furniture 1 can be prevented from falling in the direction away from the side wall 2.

  In addition, the damper 8 according to the first embodiment is not of a type that resists the swinging of the furniture 1 by its own rigidity, but the swinging of the furniture 1 is suppressed to a certain extent, and thus the movement is suppressed even if the seismic intensity increases. There is also an effect of not reaching.

  As described above, in the first embodiment, the slider 14 (second base portion 13) can be continuously displaced along the rail member 6 in the front-rear direction, so that the damper 8 is adjusted to an optimum mounting angle. And it is very convenient.

  Further, by displacing the slider 14 between the attachment / detachment position and the retaining position with respect to the rail member 6, the damper 8 can be easily connected to and removed from the rail member 6. Therefore, also in this sense, the overturn prevention device of the first embodiment is excellent in usability in attaching to the rail member 6.

  Further, in the first embodiment, the rail member 6 is attached along the direction in which the hanging metal fitting 5 is arranged in the ceiling wall 3. That is, since the rail member 6 is attached along the reinforced part of the ceiling wall 3, even if it receives a force in the compression direction from the damper 8 side, it can effectively resist this. However, if the rail member 6 is sufficiently long in the front-rear direction, the stress can be distributed over a wide range even when subjected to the force in the compression direction on the damper 8 side. It is not necessary to be provided along the site.

<Embodiment 2>
FIG. 4 shows Embodiment 2 of the present invention. In the second embodiment, instead of the rail member 6 of the first embodiment, a plurality of fixing members (two cases are shown in the figure, but the number of installation members may be three or more) are arranged at predetermined intervals in the front-rear direction. The mounting position on the damper 8 side with respect to the ceiling wall 3 is adjusted by selecting one of the fixing members.

  Both the fixing members of the second embodiment are configured by L-shaped brackets 22. That is, the L-shaped bracket 22 is formed of a mounting plate 22A for mounting on the ceiling wall 3 and an upright plate 22B that stands downward from one side edge of the mounting plate 22A. A second base portion 13 provided at an end portion of the damper 8 on the cylinder 9 side (end portion on the ceiling wall 3 side) of the damper 8 is connected to the upright plate 22 </ b> B via a second pin 15.

Also in the second embodiment configured as described above, the mounting position of the damper 8 with respect to the ceiling wall 3 can be selected and adjusted. Even in such a stepwise adjustment means, the preferable angle in the mounting posture of the damper 8 has a width (range of 15 to 25 degrees with respect to the vertical direction) as described above. Adjustment in the range is sufficiently possible. Therefore, also in Embodiment 2, it is convenient to adjust the damper 8 to a suitable mounting angle.
Other configurations are the same as those of the first embodiment.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the second embodiment, the mounting position of the damper 8 with respect to the ceiling wall 3 can be selectively adjusted by arranging a plurality of L-shaped brackets 22 at intervals in the front-rear direction. However, instead of this method, a plurality of attachment portions may be arranged at a fixed pitch on one fixing member, and the attachment position of the damper 8 may be adjusted in a plurality of stages.

  (2) In the first embodiment, the pair of set screws 21 are tightened from both sides of the slider 14 to perform positioning with respect to the rail member 6. However, the set screw 21 may be tightened only on one side of the slider 14.

DESCRIPTION OF SYMBOLS 1 ... Furniture (article) 3 ... Ceiling wall 6 ... Rail member (fixing member) 8 ... Damper (falling prevention tool) 11 ... 1st base part 13 ... 2nd base part 14 ... Slider 18 ... Channel groove 22 ... L-shaped bracket (Fixing member)

Claims (3)

An anti-tip tool interposed between the upper surface of the article and the ceiling wall and exhibiting the function of preventing the article from falling;
A first base portion disposed on one end side of the tipping prevention tool and connected to the upper surface of the article;
A second base portion disposed on the other end side of the overturn prevention device, wherein an attachment position to a fixing member having an arrangement direction relative to the ceiling wall is changeable with respect to an arrangement direction of the fixing member; A fall prevention device characterized by comprising:   The fixing member is a rail member formed so as to extend in one direction and a cross section is formed in a channel shape, and the mounting position of the second base portion can be continuously changed along the extending direction of the rail member. The fall prevention device according to claim 1, wherein the fall prevention device is provided.   The second base portion has a slider that is fitted in the rail member and can be displaced along the rail member, and the slider rotates to be inside the opening edge portion of the channel groove of the rail member. The fall prevention device according to claim 2, wherein the fall prevention device is displaceable between a retaining position that is locked and prevented from slipping, and an attaching / detaching position that can be incorporated into and removed from the opening of the channel groove. .

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