JP2020195667A - Overturn suppression device - Google Patents

Abstract

To suppress an overturn of an installed matter by a further simpler constitution, and to make installation easy.SOLUTION: An overturn suppression device 10 has: a lower-side member 12 placed on an installation face F; an upper-side member 14 arranged above the lower-side member 12, fixed below an installed matter, and tiltable upward with respect to the lower-side member 12 when the installed matter is forwardly inclined; and an auxiliary leg 16 accommodated between the lower-side member 12 and the upper-side member 14 in a state of being energized frontward FR by an energization member at a normal time, and made to be partially protrusive frontward FR of the lower-side member 12 by an energization force of the energization member at an inclination of the upper-side member 14 accompanied by a front inclination of the installed matter.SELECTED DRAWING: Figure 3

Description

The present invention relates to a fall suppression device.

Conventionally, as a fall prevention method for preventing an installed object from falling toward the front side when a shaking such as an earthquake occurs, the installed object is fixed to a floor surface or a wall surface with seismic metal fittings. Further, as another fall prevention method, the installation object is fixed between the floor and the ceiling by applying tension by interposing a stretchable rod between the upper surface of the installation object and the ceiling.

However, these methods are aesthetically problematic because marks of seismic metal fittings remain on the floor, walls, or ceiling when the installation is removed. In addition, with these methods, if the shaking is large, the floor or wall will be destroyed by the installation object fixed with the seismic metal fittings, or the position of the stretchable rod will shift due to the lateral shaking, and it will not be possible to maintain sufficient tension. There is a risk that the installation will fall over.

On the other hand, in the fall prevention method described in Patent Document 1, when the upper pedestal moves forward with respect to the lower pedestal, the front rotating body as a front fulcrum descends from the upper pedestal and comes into contact with the installation surface. The installation object is fixed to the fall prevention device. Then, in the fall prevention device described in Patent Document 1, when the upper pedestal moves forward with respect to the lower pedestal, the installation object is supported by the front fulcrum and the rear rotating body as the rear fulcrum. ..

Japanese Patent No. 5650788

However, in the above-mentioned conventional example, a mechanism that allows the upper pedestal to move forward with respect to the lower pedestal, or a mechanism that the front rotating body descends from the upper pedestal and comes into contact with the installation surface when moving to the front of the upper pedestal. Etc., a complicated mechanism is required. In addition, it is considered that there is room for improvement in the ease of installing the fall prevention device.

An object of the present invention is to make it possible to suppress a fall of an installed object with a simpler configuration and to facilitate the installation.

The fall suppressing device according to the first aspect is provided on the lower member placed on the installation surface and the lower member, fixed under the installation object, and when the installation object tilts forward, the lower member The upper member that can be tilted upward with respect to the side member and the upper member that is normally urged forward by the urging member are stored between the lower member and the upper member and in front of the installation object. It has an auxiliary leg that can partially project forward of the lower member due to the urging force of the urging member when the upper member is tilted due to tilting.

In this fall suppression device, the fall suppression device is placed on the installation surface so that the lower member abuts on the installation surface, the installation object is placed on the upper member, and the upper member and the installation object are fixed to fix the installation object. It is installed between the and the installation surface. Therefore, it is easy to install the fall suppression device.

When the installation object tilts forward due to shaking such as an earthquake, the upper member tilts upward with respect to the lower member as the installation object tilts forward. At this time, a part of the auxiliary leg stored between the lower member and the upper member protrudes forward of the lower member due to the urging force of the urging member. When the auxiliary legs come into contact with the installation surface, it is possible to prevent the installation object from tipping over.

The second aspect is the fall suppressing device according to the first aspect, wherein the upper member is provided with a support portion for supporting the locking member, and the auxiliary leg is locked when the auxiliary leg is retracted. An engaging portion that engages with the member is formed, and the locking member is lifted by the supporting portion and disengaged from the engaging portion as the upper member tilts upward with respect to the lower member. Has been done.

In this fall suppression device, a locking member supported by a support portion of the upper member is normally engaged with an engaging portion of the auxiliary leg. As a result, the auxiliary leg is normally urged forward by the urging member, and the state of being stored between the lower member and the upper member is maintained.

On the other hand, when the installed object tilts forward due to shaking such as an earthquake and the upper member tilts upward, the locking member is lifted by the support portion of the upper member and disengages from the engaging portion of the auxiliary leg. As a result, the holding of the auxiliary leg by the locking member is released. As a result, a part of the auxiliary leg protrudes forward of the lower member due to the urging force of the urging member.

A third aspect is the fall suppressing device according to the first aspect or the second aspect, in which the upper member is located at a front side portion located on the front side of the lower member member and behind the lower member member. It has a rear side portion that is movable in the front-rear direction with respect to the lower member.

In this fall suppression device, by moving the rear side portion of the upper member back and forth, the length from the front side portion to the rear side portion of the upper member can be adjusted according to the depth of the installation object. For this reason, it is possible to cope with an installation having a depth from the most contracted length to the most extended length of the fall suppressing device.

A fourth aspect is the fall suppressing device according to any one of the first to third aspects, in which the auxiliary leg has a notch that engages with the bottom surface portion of the lower member after the auxiliary leg protrudes. Is formed, and the bottom surface portion is inserted into the notch so that the lower surface of the protruding portion of the auxiliary leg is flush with the lower surface of the bottom surface portion.

In this fall suppression device, a notch formed in the auxiliary leg is engaged with the bottom surface portion of the lower member after the auxiliary leg protrudes. As a result, it is possible to prevent the once protruding auxiliary leg from being pushed back. Further, since the bottom surface portion of the lower member is inserted into the notch of the auxiliary leg, the lower surface of the protruding portion of the auxiliary leg is flush with the lower surface of the bottom surface portion, so that the area from the lower member to the protruding portion of the auxiliary leg can be changed. Make uniform contact with the installation surface. Therefore, as compared with the case where the protruding portion of the auxiliary leg does not touch the installation surface, it is possible to further suppress the fall of the installed object.

A fifth aspect is the fall suppressing device according to any one of the first to fourth aspects, wherein the auxiliary leg is fixed to the lower member and has a removable fixing member.

In this fall suppressing device, the protruding function of the auxiliary leg can be invalidated by fixing the auxiliary leg to the lower member by the fixing member. As a result, it is possible to prevent the auxiliary leg from unexpectedly protruding when the fall suppressing device is carried or installed. Further, since the fixing member is removable, the protruding function of the auxiliary leg can be enabled by removing the fixing member after installation.

In the sixth aspect, in the fall suppressing device according to any one of the first to fifth aspects, a protective member for the installation surface is provided on the lower edge of the front end of the auxiliary leg.

In this fall suppressing device, since a protective member for the installation surface is provided on the lower edge of the front end of the auxiliary leg, it is possible to suppress damage to the installation surface when the auxiliary leg protrudes.

According to the fall suppression device according to the present invention, it is possible to suppress the fall of the installed object with a simpler configuration and to facilitate the installation.

FIG. 5 is a perspective view of a fall suppressing device according to the first embodiment as viewed from above in a normal state in which the overall length is shortened. It is a perspective view which looked at the state in the normal state in which the total length was shortened in the fall suppression apparatus which concerns on 1st Embodiment from below. FIG. 1 is a perspective view showing a state in which a part of the auxiliary leg protrudes forward. FIG. 2 is a perspective view showing a state in which a part of the auxiliary leg protrudes forward. FIG. 5 is a perspective view of a fall suppressing device according to a first embodiment as viewed from above in a normal state in which the entire length is extended. FIG. 5 is a perspective view of a fall suppressing device according to the first embodiment, as viewed from below in a normal state in which the entire length is extended. FIG. 5 is a perspective view showing a state in which a part of the auxiliary leg protrudes forward. FIG. 6 is a perspective view showing a state in which a part of the auxiliary leg protrudes forward. It is a perspective view which looked at the lower member and the front side part of the upper member from above. It is a perspective view which looked at the lower member and the front side part of the upper member from below. It is a perspective view which looked at the auxiliary leg from above. It is a perspective view which looked at the auxiliary leg from below. It is a perspective view which looked at the rear side part of the upper member from above. It is a perspective view which looked at the rear side part of the upper member from the lower side. FIG. 5 is a vertical cross-sectional view showing a state in a normal state in which the overall length of the fall suppressing device according to the first embodiment is reduced. FIG. 15 is a cross-sectional view showing a state in which a part of the auxiliary leg protrudes forward. (A) is an enlarged cross-sectional view showing a state in which the locking member is engaged with the engaging portion of the auxiliary leg. (B) is an enlarged cross-sectional view showing a state in which the locking member is lifted by the support portion of the upper member and disengaged from the engaging portion of the auxiliary leg. (A) is a side view showing a normal state in which the overall length of the fall suppressing device is shortened. (B) is a side view showing a state in which a part of the auxiliary leg protrudes forward in (A). (A) is a side view showing a state in a normal state in which the entire length of the fall suppressing device is extended. (B) is a side view showing a state in which a part of the auxiliary leg protrudes forward in (A). (A) is a perspective view which shows the normal state of the fall prevention device arranged between a shelf body and an installation surface. (B) is a perspective view showing a state in which a part of the auxiliary leg protrudes forward in (A). It is a perspective view which shows the state in the normal state which combined the fall suppression apparatus which concerns on 2nd Embodiment in the opposite direction. FIG. 21 is a perspective view showing a state in which a part of the auxiliary legs is projected. It is an enlarged sectional view which shows the attachment state of the fixing member which fixes the auxiliary leg with respect to the lower member. It is a figure which shows. It is a perspective view which shows the modification which set the length of the upper member long in the fall suppression apparatus which concerns on 1st Embodiment. (A) is a perspective view showing a modified example in which the length in the front-rear direction is set to be relatively short in the fall suppressing device according to the first embodiment. (B) is a perspective view showing a modified example in which the length in the front-rear direction is set to be relatively long in the fall suppressing device according to the first embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the present embodiment, the "forward FR" means the direction in which the auxiliary leg 16 described later protrudes. This "front FR" may coincide with the front side of the installation, or may coincide with the rear side of the installation. Further, the "front-back direction" means a direction including the above-mentioned "front FR" and the rear RR which is the opposite direction.

[First Embodiment]
In FIG. 20, the fall suppression device 10 according to the present embodiment is installed and used between the shelf body 1 and the installation surface F as an example of the installation object. In FIGS. 1 to 8, the fall suppressing device 10 has a lower member 12, an upper member 14, and an auxiliary leg 16.

(Lower member)
The lower member 12 is a member placed on the installation surface F (FIG. 20), and the front-rear direction is the longitudinal direction. In FIGS. 9 and 10, the lower member 12 has a bottom surface portion 12A and a side surface portion 12B that are in contact with the installation surface F (FIG. 20). For example, rectangular through holes 12C are formed at both ends of the bottom surface portion 12A in the substantially central portion in the front-rear direction in the width direction W.

At the center of the width direction W at the end of the front FR of the bottom surface portion 12A, a stopper portion 12D that stands upright upward from the bottom surface portion 12A is formed. The stopper portion 12D is a portion that limits the protruding length of the auxiliary leg 16. The stopper portion 12D is formed by cutting up a part of the bottom surface portion 12A, for example.

Further, a spring support portion 12E that stands upright upward from the bottom surface portion 12A is formed at the center of the width direction W at the end portion of the rear RR of the bottom surface portion 12A. The spring support portion 12E is a portion that supports the end portion of the rear RR of the compression spring 40 (FIGS. 15 and 16) described later from the rear RR side. The spring support portion 12E is formed by, for example, cutting up a part of the bottom surface portion 12A.

A spring guide portion 18 is provided between the stopper portion 12D and the spring support portion 12E at the center of the upper surface of the bottom surface portion 12A in the width direction W. The spring guide portion 18 is formed as a space having a rectangular cross section by, for example, connecting a member having a substantially hat-shaped cross section to the upper surface of the bottom surface portion 12A. The top 18B on the rear RR side of the spring guide 18 is closed, but the top on the front FR side is an opening 18A that opens upward. A spring receiving portion 42C (FIG. 14) of the auxiliary leg 16 described later is inserted into the opening 18A from above. The spring receiving portion 42C is adapted to move forward in the spring guide portion 18 when the auxiliary leg 16 protrudes.

In the bottom surface portion 12A, a guide portion 22 for guiding the locking member 24, which will be described later, is provided on the RR behind the spring support portion 12E. The guide portion 22 is formed by, for example, connecting a member having a substantially hat-shaped cross section to the upper surface of the bottom surface portion 12A. A through hole 22B (FIG. 17) into which the locking member 24 is inserted is formed in the top portion 22A of the guide portion 22. The locking member 24 is always inserted into the through hole 22B of the guide portion 22.

The side surface portions 12B of the lower member 12 are erected upward from both ends of the bottom surface portion 12A in the width direction W, for example, over the entire length of the bottom surface portion 12A. That is, the bottom surface portion 12A and the side surface portion 12B of the lower member 12 are formed in a substantially U shape when viewed from the front FR side. Two upper and lower rivet holes 12T and one screw hole 12F are formed at the front FR side end of the side surface portion 12B. Further, one screw hole 12R is formed at a position close to the locking member 24 in the front-rear direction of the side surface portion 12B. Female screws are formed in the screw holes 12F and 12R, respectively.

A reinforcing member 26 for reinforcing the end portion of the lower member 12 on the front FR side is provided. The reinforcing member 26 has an upper surface portion 26A and a side surface portion 26B. The upper surface portion 26A extends in the width direction W so as to connect the upper ends of the side surface portions 12B of the lower member 12. The side surface portion 26B is erected downward from both ends of the upper surface portion 26A in the width direction W. The height dimension of the side surface portion 26B is the same as the height dimension of the side surface portion 12B of the lower member 12 excluding the thickness of the bottom surface portion 12A. Two rivet holes 26T are formed in the side surface portion 26B, respectively. The lower member 12 and the reinforcing member 26 are rivet-joined by using the rivet hole 26T and the rivet hole 12T formed in the side surface portion 12B of the lower member 12. The reinforcing member 26 reinforces the lower member 12 with a closed cross-sectional structure at the end of the front FR.

(Upper member)
In FIGS. 1 to 8, the upper member 14 is provided above the lower member 12, fixed under the shelf body 1 (FIG. 20), and with respect to the lower member 12 when the shelf body 1 tilts forward. It is said that it can be tilted upward. The upper member 14 has a front side portion 34 located on the front FR side of the lower member 12 and a rear side portion 44 located on the rear RR of the lower member 12 and movable in the front-rear direction with respect to the lower member 12. And have.

In FIGS. 1 to 8, the front side portion 34 of the upper member 14 is a member attached to the end portion of the front FR of the lower member 12 by using, for example, a screw 28. The screws 28 are fastened to the screw holes 12F (FIGS. 9 and 10) of the lower member 12. The front side portion 34 has an upper surface portion 34A and a side surface portion 34B, and is formed in a substantially inverted U shape. The side surface portion 34B is erected downward from both ends of the upper surface portion 34A in the width direction W. Through holes 34C are formed in the side surface portions 34B, respectively. The screw 28 is passed through the through hole 34C. The diameter of the through hole 34C is larger than the outer diameter of the screw 28. Further, the front side portion 34 is not completely fixed to the lower member 12 by the screw 28. As a result, the front side portion 34 can be displaced in the vertical direction with respect to the lower member 12 and in the rotational direction about the screw 28 within the range of the gap between the screw 28 and the through hole 34C.

In FIGS. 9 and 10, a flange 34F is erected upward at the central portion in the width direction W at the edge of the front FR of the upper surface portion 34A of the front side portion 34. A through hole 34D is formed in the flange 34F. Fixing tools (not shown) such as tapping screws for fixing the shelf body 1 to the front side portion 34 are passed through the through hole 34D.

In FIGS. 1 to 8, the rear side portion 44 of the upper member 14 is a member attached to the lower member 12 using, for example, a screw 38. The screw 38 is fastened to the screw hole 12R (FIGS. 9 and 10) of the lower member 12. The rear side portion 44 has an upper surface portion 44A and a side surface portion 44B, and is formed in a substantially inverted U shape. The side surface portion 44B is erected downward from both ends of the upper surface portion 44A in the width direction W. Penetrating elongated holes 44C extending in the front-rear direction are formed in the side surface portions 44B, respectively. The position of the rear side portion 44 is movable in the front-rear direction within the range of the through elongated hole 44C. The screw 38 is passed through the elongated hole 44C. The vertical width of the through slot 44C is larger than the outer diameter of the screw 38. Further, the rear side portion 44 is not completely fixed to the lower member 12 by the screw 38. As a result, the rear side portion 44 can be displaced in the vertical direction with respect to the lower member 12 within the range of the gap between the screw 38 and the through elongated hole 44C.

In FIG. 11, a flange 44F is erected upward at the central portion in the width direction W at the edge of the rear RR of the upper surface portion 44A of the rear side portion 44. A through hole 44D is formed in the flange 44F. Fixing tools (not shown) such as tapping screws for fixing the shelf body 1 to the rear side portion 44 are passed through the through hole 44D.

In this way, the upper member 14 is divided into a front side portion 34 and a rear side portion 44, which makes the rear side portion 44 movable and adjusts the range of the upper member 14 in the front-rear direction to the depth of the shelf body 1. This is so that it can be changed. As shown in FIGS. 18 and 19, the front side portion 34 and the rear side portion 44 are fixed under the shelf body 1, respectively. Therefore, in the event of an earthquake or the like, the front side portion together with the shelf body 1 is fixed. The 34 and the rear side portion 44 are designed to move integrally.

In FIG. 12, a support portion 32 for supporting the locking member 24 is provided on the lower surface of the upper surface portion 44A of the rear side portion 44. The support portion 32 is formed at a position away from the lower surface portion, for example, by connecting a member having a substantially inverted hat-shaped cross section to the lower surface portion of the upper surface portion 44A. This is because, as shown in FIG. 17, the head portion 24A of the locking member 24 is arranged between the lower surface of the upper surface portion 44A and the support portion 32. The locking member 24 is, for example, a pin having a head 24A.

The support portion 32 extends long in the front-rear direction according to the movement range of the rear side portion 44. The support portion 32 is formed with a slit 32A extending in the front-rear direction. Considering the assembly of the rear side portion 44 with respect to the lower side member 12, the end portion on the front FR side of the slit 32A is open, and the end portion on the rear RR side is closed. A locking member 24 is passed through the slit 32A of the support portion 32. When the rear side portion 44 is moved back and forth, the locking member 24 relatively moves in the slit 32A. Therefore, the locking member 24 does not hinder the front-back movement of the rear side portion 44.

Of the lower surface of the upper surface portion 44A of the rear side portion 44, the rear end leg portion 36 is provided on the rear RR side of the support portion 32. The rear end leg portion 36 is formed by connecting, for example, a member having a substantially inverted hat-shaped cross section to the lower surface of the upper surface portion 44A. As shown in FIGS. 2 and 15, in a normal state, the rear end leg portion 36 is flush with the lower surface of the bottom surface portion 12A of the lower member 12 so as to be in contact with the installation surface F (FIG. 20). It has become. In particular, as shown in FIG. 8, when the rear side portion 44 is moved to the rear RR to extend the overall length of the fall suppression device 10, the rear end leg portion 36 comes into contact with the ground to improve stability. It is possible to increase it.

(Auxiliary leg)
In FIGS. 1 to 8, the auxiliary leg 16 is normally between the lower member 12 and the upper member 14 in a state of being urged to the front FR by a compression spring 40 (FIG. 15) as an example of the urging member. It is stored. Further, a part of the auxiliary leg 16 can be projected to the front FR of the lower member 12 by the urging force of the compression spring 40 when the upper member 14 is tilted due to the forward tilt of the shelf body 1 (FIG. 20). ..

Specifically, in FIGS. 13 and 14, the auxiliary leg 16 has an upper surface portion 16A, a side surface portion 16B, and a front surface portion 16C. The side surface portion 16B is erected downward from both ends of the upper surface portion 16A in the width direction W. The front surface portion 16C is erected downward from the edge on the front FR side. The front surface portion 16C closes the front end of the auxiliary leg 16. As a result, the inside of the auxiliary leg 16 in the normal state cannot be seen from the outside.

A slit 16D extending in the front-rear direction is formed at the center of the upper surface portion 16A in the width direction W. The rear RR side of the slit 16D is open, but the front FR side is closed. As shown in FIGS. 15 and 16, the support portion 32 of the upper member 14 is inserted into the slit 16D.

The side surface portion 16B is formed with a notch 16E that engages with the bottom surface portion 12A of the lower member 12 after the auxiliary leg 16 protrudes. By inserting the bottom surface portion 12A into the notch 16E, the lower surface of the protruding portion of the auxiliary leg 16 is configured to be flush with the lower surface of the bottom surface portion 12A. The protruding portion of the auxiliary leg 16 is the portion on the front FR side of the notch 16E. The notch 16E is adapted to include a portion of the bottom surface portion 12A of the lower member 12 from the edge on the front FR side to the through hole 12C. The portion on the rear RR side of the notch 16E is a convex portion 16F that enters the through hole 12C. The bottom surface portion 12A is inserted into the notch 16E, and the convex portion 16F is further inserted into the through hole 12C so that the lower surface of the protruding portion of the auxiliary leg 16 is flush with the lower surface of the bottom surface portion 12A. Further, by engaging the auxiliary leg 16 and the lower member 12 in the front-rear direction, it is possible to prevent the once protruding auxiliary leg 16 from being pushed back.

The auxiliary leg 16 is formed with an engaging portion 42 that engages with the locking member 24 when the auxiliary leg 16 is retracted. The engaging portion 42 is configured by, for example, connecting a member having a substantially inverted hat-shaped cross section to the lower surface of 16A. A through hole 42A is formed at the rear end of the engaging portion 42 on the rear RR side. On the rear RR side of the through hole 42A, an inclined surface 42B that descends toward the rear RR side is formed. When the auxiliary leg 16 is pushed in the rear RR direction and stored, the lower end of the locking member 24 is guided by the inclined surface 42B and smoothly guided to the through hole 42A.

A spring receiving portion 42C is erected downward at the front end of the engaging portion 42 on the FR side. The front end of the compression spring 40 comes into contact with the spring receiving portion 42C. The spring receiving portion 42C is inserted into the opening 18A of the spring guide portion 18 from above (FIGS. 15 and 16).

In the auxiliary leg 16, the locking member 24 is lifted by the support portion 32 and disengaged from the engaging portion 42 as the upper member 14 is tilted upward with respect to the lower member 12.

(Action)
The present embodiment is configured as described above, and its operation will be described below. In FIG. 20A, in the fall suppression device 10 according to the present embodiment, the fall suppression device is placed on the installation surface F so that the lower member 12 abuts on the installation surface F, and the shelf body 1 is placed on the upper member 14. Is placed and the upper member 14 and the shelf body 1 are fixed, so that the upper member 14 and the shelf body 1 are installed between the shelf body 1 and the installation surface F. FIG. 20A shows an example of a wall surface arrangement in which the back surface of the shelf body 1 is close to the wall surface WA, and the direction in which the shelf body 1 may tip over is mainly in front of the shelf body 1. Therefore, the fall suppression device 10 is installed so that its front FR coincides with the front of the shelf body 1.

As shown in FIGS. 18 and 19, the flange 34F of the front side portion 34 is fixed to the front surface of the shelf body 1 using tapping screws or the like (not shown), and the flange 44F of the rear side portion 44 is fixed to the shelf body 1. Can be fixed to the rear surface. As a result, the front side portion 34 and the rear side portion 44 of the upper member 14 are integrated with the shelf body 1. As described above, in the present embodiment, the fall suppression device 10 can be easily installed.

As shown in FIGS. 1, 2, 5, 6, 18, 18 (A), and 19 (A), the depth of the shelf body 1 is obtained by moving the rear side portion 44 of the upper member 14 back and forth. The length from the front side portion 34 to the rear side portion 44 of the upper member 14 can be adjusted according to the above. Therefore, the fall suppressing device 10 can correspond to the shelf body 1 having a depth from the most contracted length to the most extended length.

As shown in FIG. 17A, in the fall suppression device 10, the locking member 24 normally supported by the support portion 32 of the upper member 14 is inserted into the through hole 42A in the engaging portion 42 of the auxiliary leg 16. It is plugged in and engaged. Further, the locking member 24 is also inserted into the through hole 22B of the guide portion 22 and is locked in the guide portion 22. As a result, the auxiliary leg 16 is urged to the front FR by the compression spring 40, and the state of being stored between the lower member 12 and the upper member 14 is maintained (FIG. 15).

On the other hand, since the upper member 14 can move with respect to the lower member 12 within the range of the gap between the screw 28 and the through hole 34C and the gap between the screw 38 and the through elongated hole 44C, the shelf is affected by shaking such as an earthquake. When the main body 1 is tilted forward, the upper member 14 is tilted upward with respect to the lower member 12 as the shelf main body 1 is tilted forward. At this time, for example, in FIG. 18, the upper member 14 is tilted so that the front side portion 34 and the rear side portion 44 fixed to the shelf body 1 are integrally lifted around the screw 28 on the front FR side. To do. As a result, as shown in FIG. 17B, the locking member 24 is lifted upward (in the direction of arrow UP) by the support portion 32 of the upper member 14, and is disengaged from the engaging portion 42 of the auxiliary leg 16. The inclination angle of the upper member 14 from which the locking member 24 disengages from the engaging portion 42 is, for example, 1 °. As a result, the holding of the auxiliary leg 16 by the locking member 24 is released, and as shown in FIG. 16, a part of the auxiliary leg 16 stored between the lower member 12 and the upper member 14 is compressed by a compression spring. The urging force of 40 projects to the front FR of the lower member 12 (FIG. 16). The protruding length of the auxiliary leg 16 is limited by the stopper portion 12D. Specifically, the protrusion of the auxiliary leg 16 is stopped when the spring receiving portion 42C abuts on the stopper portion 12D. When the protruding auxiliary leg 16 comes into contact with the installation surface F, a reaction force is generated against the moment when the shelf body 1 tends to tilt forward, and the shelf body 1 can be suppressed from tipping over.

For example, as shown in FIG. 4, after the auxiliary leg 16 protrudes, the auxiliary leg 16 falls due to its own weight, so that the notch 16E (FIGS. 13 and 14) formed in the auxiliary leg 16 is formed by the lower member 12 Engage with the bottom surface portion 12A of. Similarly, the convex portion 16F of the auxiliary leg 16 enters the through hole 12C of the bottom surface portion 12A. As a result, it is possible to prevent the once protruding auxiliary leg 16 from being pushed back. Here, it is conceivable that the fall suppressing device 10 is bent and deformed so that the lower member 12 is lifted with respect to the auxiliary leg 16 that has touched the ground. Along with this, even if the engagement between the front FR-side end of the notch 16E and the front FR-side edge of the bottom surface 12A of the lower member 12 is loosened, the rear RR-side end of the convex portion 16F The engagement between the lower member 12 and the through hole 12C of the lower member 12 is difficult to loosen. Therefore, it is possible to prevent the once protruding auxiliary leg 16 from being pushed back.

Further, the bottom surface portion 12A of the lower member 12 is inserted into the notch 16E of the auxiliary leg 16, and the convex portion 16F of the auxiliary leg 16 is inserted into the through hole 12C of the bottom surface portion 12A, so that the lower surface of the protruding portion of the auxiliary leg 16 is formed. It is flush with the lower surface of the bottom surface portion 12A (FIG. 16). Therefore, the lower member 12 to the protruding portion of the auxiliary leg 16 come into uniform contact with the installation surface F. Therefore, as compared with the case where the protruding portion of the auxiliary leg 16 does not uniformly touch the installation surface F, the shelf body 1 can be further suppressed from tipping over.

Due to the depth adjustment, the distance from the screw 28, which is the center of tilt, to the locking member 24 changes regardless of whether the overall length of the fall suppression device 10 is shortened or the overall length is extended. Since there is no such thing, the inclination angle of the shelf body 1 (upper member 14) that operates the auxiliary leg 16 can be made substantially constant. By using an urging member such as a compression spring 40 as a drive source for projecting the auxiliary leg 16, the structure is simple and inexpensive as compared with the case where an electric or chemical drive source is used.

As described above, according to the present embodiment, it is possible to suppress the fall of the shelf body 1 with a simpler configuration and to facilitate the installation.

After the auxiliary leg 16 protrudes, the auxiliary leg 16 is lifted with respect to the lower member 12, the auxiliary leg 16 and the lower member 12 are disengaged, and the auxiliary leg 16 is moved in the rear RR direction. It is also possible to repeatedly use the fall suppressing device 10 by pushing the locking member 24 into the engaging portion 42 again. At this time, the lower end of the locking member 24 is guided by the inclined surface 42B and smoothly guided to the through hole 42A.

[Second Embodiment]
In FIGS. 21 to 24, the fall suppressing device 20 according to the present embodiment has a fixing screw 46 as an example of the fixing member. The fixing screw 46 is designed so that the auxiliary leg 16 can be fixed to the lower member 12 and can be removed. Specifically, in FIG. 22, a through hole 16G is formed in the front surface portion 16C of the auxiliary leg 16, and a fixing screw 46 can be inserted into the through hole 16G. As shown in FIG. 23, the fixing screw 46 can be fastened to the stopper portion 12D of the lower member 12. As a result, the auxiliary leg 16 in the retracted state can be fixed to the lower member 12. The fixing member is not limited to the fixing screw 46, and may be a pin, a clip, or the like.

A protective member 48 against the installation surface F is provided on the lower edge of the front end of the auxiliary leg 16. The protective member 48 is, for example, an elastic member such as rubber, elastomer, or foamed resin formed in a U-shaped cross section, and is fitted into the lower edge so as to cover the lower edge of the front end of the auxiliary leg 16.

In the example shown in FIGS. 21 and 22, the two fall suppressing devices 20 are arranged in opposite directions to each other. As shown in FIG. 24, if the cabinet 2 as an example of the installation object is fixed on these two fall suppression devices 20, it is possible to cope with an island-like arrangement in which the wall surfaces are not close to each other around the cabinet 2. .. The means for fixing the fall suppressing device 20 and the cabinet 2 is not limited to screwing, and may be a strong adhesive tape (for example, double-sided tape). The rear end of the fall suppressing device 20 on the rear RR side is closed by the cover 50 from the viewpoint of appearance.

In the fall suppressing device 20, the protruding function of the auxiliary leg 16 can be invalidated by fixing the auxiliary leg 16 to the lower member 12 with the fixing screw 46. As a result, it is possible to prevent the auxiliary leg 16 from unexpectedly protruding when the fall suppressing device 20 is carried or installed. Further, since the fixing screw 46 is removable, the protruding function of the auxiliary leg 16 can be activated by removing the fixing screw 46 after installation.

Further, since the protective member 48 against the installation surface F (FIG. 24) is provided on the lower edge of the front end of the auxiliary leg 16, damage to the installation surface F when the auxiliary leg 16 protrudes can be suppressed. The protective member 48 may be omitted.

Since the other parts are the same as those in the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

(Modification example)
The length of the upper member 14 in the fall suppressing device 10 in the front-rear direction can be arbitrarily changed according to the depth of the installed object. In the modified example shown in FIG. 25, the length of the upper member 14 is set longer than that in the example shown in FIG. The upper member 14 can be slidable in the front-rear direction as in the first embodiment.

Further, as shown in FIGS. 26A and 26B, even if the front-rear sliding mechanism of the upper member 14 with respect to the lower member 12 is omitted and the length of the fall suppressing device 10 in the front-rear direction is fixed in advance. Good. In the example shown in FIG. 26 (A), the upper member 14 is integrated without being divided into front and rear members, and the length of the fall suppressing device 10 is set to be relatively short. On the other hand, in the example shown in FIG. 26B, the length of the fall suppressing device 10 is set to be relatively long.

The upper surface 14A is a combination of the upper surfaces 34A and 44A in the first embodiment. Similarly, the side surface 14B is a combination of the side surfaces 34B and 44B. The through hole 14C corresponds to the through hole 34C in the first embodiment. The flanges 14F and 14G correspond to the flanges 34F and 44F in the first embodiment. The through hole 14D corresponds to the through hole 34D in the first embodiment. The through hole 14E corresponds to the through hole 44D in the first embodiment.

In the examples shown in FIGS. 26A and 26B, since the upper member 14 is integrated, the upper member 14 is upper than the case where the upper member 14 is divided back and forth as in the first embodiment. The flexural rigidity of the member 14 as a whole is high. Therefore, the fall suppression device 10 is suitable for applications that require higher bending rigidity, such as when the installed object is heavy.

[Other Embodiments]
Although an example of the embodiment of the present invention has been described above, the embodiment of the present invention is not limited to the above, and other than the above, various modifications can be made within a range not deviating from the gist thereof. Of course there is.

In the first embodiment, the auxiliary leg 16 is formed with a notch 16E that engages with the bottom surface portion 12A of the lower member 12 after the auxiliary leg 16 protrudes, and the bottom surface portion 12A is inserted into the notch 16E to assist. The lower surface of the protruding portion of the leg 16 is assumed to be flush with the lower surface of the bottom surface portion 12A. However, the present invention may have a configuration that does not have such a notch 16E.

Although the compression spring 40 is mentioned as an example of the urging member, the urging member is not limited to this, and a tension spring may be used. Further, the front side portion 34 and the rear side portion 44 of the upper member 14 are fixed under the shelf body 1, respectively, and when a shaking such as an earthquake occurs, the front side portion 34 and the rear side portion 44 are integrated together with the shelf body 1. Although it is assumed to move, the rear side portion 44 may be configured to move separately from the front side member 34. For example, the end of the rear RR of the rear member 44 is attached to the installation object, and when the installation object tilts forward, the end of the rear RR of the rear member 44 is lifted, whereby the front FR of the rear side member 44 is lifted. The side end may be in contact with the lower member 12 and may be tilted about the end. Further, a limiting member (not shown) may be provided on the rear RR side of the screw 38 to limit the upward tilt angle of the upper member 14.

1 Shelf body (installed object)
2 Cabinet (installed object)
10 Fall suppression device 12 Lower member 12A Bottom part 14 Upper member 16 Auxiliary leg 16E Notch 20 Fall suppression device 24 Locking member 34 Front side (upper member)
40 compression spring (urging member)
44 Rear side (upper member)
46 Fixing screw (fixing member)
48 Protective member F Installation surface FR Front RR Rear W Width direction

Claims (6)

The lower member placed on the installation surface and
An upper member provided on the lower member, fixed under the installation object, and capable of tilting upward with respect to the lower member when the installation object tilts forward.
Normally, it is stored between the lower member and the upper member in a state of being urged forward by the urging member, and when the upper member tilts due to the forward tilt of the installation object, the urging member is attached. Auxiliary legs that can be partially projected forward of the lower member by force, and
Fall suppression device with. The upper member is provided with a support portion for supporting the locking member.
The auxiliary leg is formed with an engaging portion that engages with the locking member when the auxiliary leg is retracted.
The fall suppressing device according to claim 1, wherein the locking member is lifted by the support portion and disengaged from the engaging portion as the upper member tilts upward with respect to the lower member. .. A claim having an upper member having a front side portion located on the front side of the lower member member and a rear side portion located behind the lower member member so as to be movable in the front-rear direction with respect to the lower member member. The fall suppression device according to claim 1 or 2. The auxiliary leg is formed with a notch that engages with the bottom surface portion of the lower member after the auxiliary leg protrudes.
The method according to any one of claims 1 to 3, wherein the lower surface of the protruding portion of the auxiliary leg is flush with the lower surface of the bottom surface portion by inserting the bottom surface portion into the notch. The fall suppression device described. The fall suppressing device according to any one of claims 1 to 4, wherein the auxiliary leg has a fixing member that can be fixed to the lower member and is removable. The fall suppressing device according to any one of claims 1 to 5, wherein a protective member for the installation surface is provided on the lower edge of the front end of the auxiliary leg.