JP2022077189A - Furniture, overturning prevention device used for the same, and base unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fall prevention device for furniture mounted on a floor having a structure having a simple structure, easy to construct and excellent in versatility.
A fall prevention device (6) includes an elastic plate that is placed on a floor (F) below the furniture. The plate includes a plurality of connecting portions 8 connected to the fixture and a fixing portion 9 fixed to the floor F at a position between the plurality of connecting portions 8 in a plan view.
[Selection diagram] FIG. 4

Description

The present invention relates to furniture, a fall prevention device used for the fixture, and a base unit. Here, furniture such as cabinets and shelves (rack) is a typical example of furniture, but in addition, electric (electronic) products such as multifunction devices and refrigerators, display devices such as products, and fine arts are used. It includes a wide range of items that are placed on the floor, such as exhibition equipment, personal computer servers, and distribution boards, and that may tip over in the event of an earthquake.

Many means have been proposed to prevent cabinets from tipping over in the event of an earthquake. There are two ways to prevent falls, one is to allow the cabinets to shake while mitigating the degree of shaking, and the other is to prevent the cabinets from moving independently even in the event of an earthquake (since the building moves during an earthquake, the cabinets). The idea is that the kind also sways with respect to the ground, but does not move relative to the building.)

As an example of the former method, as disclosed in Patent Document 1, there is a seismic isolation device that moves cabinets relative to the floor. On the other hand, as a means for preventing the cabinets from moving independently, as disclosed in Patent Document 2, the top surface of the cabinets is connected to the wall of the building with brackets, or disclosed in Patent Document 3. As shown above, it has been proposed to place a fall prevention plate on which cabinets are placed and fixed inside the access floor.

Japanese Unexamined Patent Publication No. 2007-0379090 Japanese Unexamined Patent Publication No. 2016-002420 Japanese Patent No. 3541362

The means of Patent Document 1 is understood to be excellent in theory, but there is a problem that the structure becomes extremely complicated. On the other hand, the means of Patent Document 2 has a simple structure, but cannot be applied to a layout in which the cabinet is arranged away from the wall of the building (so-called island placement), or when the height of the cabinet is high, brackets are attached. There is a problem that it becomes troublesome. Further, the means of Patent Document 3 has a problem that it takes a lot of time and effort to install a fall prevention plate in the access floor, and a problem that it cannot be applied to a floor other than the access floor and is inferior in versatility.

The invention of the present application was made in the wake of such a situation, and an object of the present invention is to provide a fixture fall prevention technique having a simple structure, easy construction, and excellent practicality and versatility.

The present invention includes a floor-mounted fixture and a fall prevention device and a base unit used therein, the typical configuration of which is specified in each claim.

The fall prevention device for furniture of the present invention includes an elastic plate placed on the floor below the furniture, and the plate includes a plurality of connecting portions connected to the fixture and the plurality of connecting portions in a plan view. It includes a fixed portion fixed to the floor at a position between.

According to the furniture fall prevention device of the present invention, by fixing the furniture to the floor via the furniture fall prevention device, it is possible to prevent the furniture from falling due to an earthquake or the like. In addition, when the furniture swings due to an earthquake or the like, the plate of the fall prevention device is elastically bent and deformed, so that the force applied to the fixed portion can be reduced and the fall prevention device can be suppressed from peeling from the floor. In addition, since the fall prevention device and the fixture can be connected at least at two points sandwiching the fixed portion, the fixture can be suppressed from peeling from the floor of the fall prevention device, for example, against shaking in two directions in the front-rear direction or two directions in the left-right direction. Can prevent the fall.

In the fall prevention device for furniture of the present invention, the fixing portion may be provided with a screw insertion hole through which the shaft portion of the fixing screw screwed into the floor from above can be inserted.

According to such an aspect, the fall prevention device can be reliably and easily fixed to the floor by a simple operation of inserting the shaft portion of the fixing screw from above into the screw insertion hole of the fall prevention device and screwing it into the floor.

Further, the fixing portion may be provided with a plurality of the screw insertion holes.

According to such an embodiment, with the fall prevention device arranged at a desired position on the floor, there are more options for screwing positions of the fixing screws that connect the fall prevention device and the floor. For example, even if there is a member (for example, a reinforcing bar inside the floor) in which it is difficult to screw in the fixing screw below one screw insertion hole of the fall prevention device arranged at a desired position, another screw can be inserted. The holes can be used to secure the anti-tip device to the floor without changing its position. As a result, even if the screwing position of the fixing screw to the floor is limited, the fall prevention device can be fixed to the floor at the desired position, so that the degree of freedom in the layout of the furniture to which the fall prevention device is connected is improved. do. It is also possible to use a plurality of fixing screws to firmly fix the fall prevention device to the floor at a plurality of places.

In the fall prevention device for furniture of the present invention, the plate includes a plate-shaped base in contact with the floor surface, and the connecting portion is formed by bending the plate and extends upward from the end of the base. An upright portion, a flange portion extending from the upper end of the upright portion to the outside of the base portion, and an engaging hole for upper and lower openings provided in the flange portion, and for connection to be attached upward to the lower portion of the fixture. By inserting the shaft portion of the screw into the engaging hole, the connecting portion and the fixture may be configured to be connectable.

According to such an aspect, the fall prevention device for furniture can be formed with a simple structure formed by bending and drilling a plate. This makes it possible to realize a fall prevention device that is low in cost and easy to attach to furniture.

Further, the connecting screw may be configured by a screw-in type adjuster member provided in the lower part of the fixture.

According to such an aspect, the screw-in type adjuster member can connect the furniture and the fall prevention device with a low cost and a simple configuration without using a dedicated connecting screw.

The furniture base unit of the present invention includes a base on which the furniture body is mounted and a furniture fall prevention device attached to the lower part of the base, and the furniture fall prevention device is arranged on the floor below the base. The plate includes a plurality of connecting portions connected to the fixture and a fixing portion fixed to the floor at a position between the plurality of connecting portions in a plan view. It is something that is out.

The fixture of the present invention includes the fixture fall prevention device of the present invention or the fixture base unit of the present invention.

According to the fixture base unit and the fixture of the present invention, since it has the configuration of the fixture fall prevention device of the present invention, it has a simple structure, easy to install, and has a fall prevention function excellent in practicality and versatility. We can provide fixture base units and fixtures.

In the present invention, it is not excluded that the fixture has other functions such as a shock absorber in addition to the fall prevention device. It is preferable to have a device that assists the fall prevention device as a countermeasure against earthquakes in furniture.

The furniture fall prevention device, furniture base unit and furniture of the present invention can provide a furniture fall prevention device, furniture base unit and furniture having a simple structure, easy construction, and excellent practicality and versatility.

An embodiment is shown, (A) is a side view, and (B) is a perspective view seen from below. It is a separation perspective view which looked at the same embodiment from the upper side. (A) is a plan view showing a base and a fall prevention device, and (B) is a sectional view taken along line IIIB-IIIB of (A). 3 is a cross-sectional view of the base and the fall prevention device along the VI-VI position of FIG. 3A. It is a separated perspective view which shows the fall prevention device of the same embodiment. It is sectional drawing for demonstrating the vibration-damping action of the same embodiment. It is sectional drawing which shows the other embodiment. It is sectional drawing for demonstrating the vibration-damping action of the same embodiment. It is a top view which shows the base and the fall prevention device of still another embodiment. 9 is a cross-sectional view of the base and the fall prevention device along the XX positions of FIG. It is sectional drawing which shows the base and the fall prevention device of still another embodiment.

<Outline of one embodiment>
Next, an embodiment of the present invention will be described with reference to the drawings. First, one embodiment shown in FIGS. 1 to 6 will be described. This embodiment is applied to prevent the steel cabinet 1 formed in a horizontally long rectangular shape in a plan view from tipping over.

As shown in FIGS. 1 and 2, the cabinet 1 is made of a cabinet body 2 that opens forward, a horizontally rotatable double door 3 that opens and closes the opening, and a steel plate on which the cabinet body 2 is placed. It has a base 4. Since the depth of the cabinet 1 is much smaller than the height, it is easy to fall to the front or the back in the event of an earthquake. Therefore, the fall prevention device 6 is used.

As shown in FIGS. 1 and 4, the fall prevention device 6 is installed between the floor F and the cabinet 1 to prevent the cabinet 1 from falling. In the present embodiment, a pair of left and right fall prevention devices 6 are provided below the cabinet 1. The left and right fall prevention devices 6 have the same form, and are composed of elastic metal (steel plate) plates arranged on the floor F below the cabinet 1.

The fall prevention device 6 is provided at a position between a plate-shaped base 7 in contact with the floor surface F, a pair of front and rear connecting portions 8 provided at the front and rear ends of the base 7, and front and rear connecting portions 8 in a plan view. It has a fixing portion 9 provided in 7. The connecting portion 8 is connected to the base 4 of the cabinet 1 by a screw-in type adjuster member 23, while the fixing portion 9 is fixed to the floor F by the fixing screw 10, so that the cabinet 1 is connected to the floor F via the fall prevention device 6. It is fixed to the floor F.

In the present embodiment, by fixing the cabinet 1 to the floor F via the fall prevention device 6, it is possible to prevent the cabinet 1 from falling due to an earthquake or the like. On top of that, when the cabinet 1 swings due to an earthquake or the like, the base 7 of the fall prevention device 6 is elastically bent and deformed, so that the force applied to the fixed portion 9 can be reduced, and the fall prevention device 6 from the floor F can be reduced. Peeling can be suppressed.

Further, in the present embodiment, the fall prevention device 6 and the cabinet 1 are connected at two front and rear positions by using the front and rear connecting portions 8 sandwiching the fixing portion 9. As a result, it is possible to prevent the cabinet 1 from tipping over while suppressing the fall prevention device 6 from peeling off from the floor F against shaking in two front-back directions (forward and backward directions).

<Structure of fall prevention device>
As shown in FIGS. 3 to 5, the fall prevention device 6 has a substantially rectangular shape in the front-back length (vertical length) in a plan view, and the width dimension (horizontal direction dimension) of the fall prevention device 6 is a left-right horizontal frame-shaped base 4. It is formed to be about one-fifth of the width dimension of. Further, the depth dimension (front-back direction dimension) of the fall prevention device 6 is formed to be shorter than the depth dimension of the base 4. The plane shape and plane size of the fall prevention device 6 are not limited to this embodiment and can be changed as appropriate.

As described above, the fall prevention device 6 includes a plate-shaped base portion 7 in contact with the floor surface F, a pair of front and rear connecting portions 8 provided at the front and rear end portions of the base portion 7, and front and rear connecting portions 8 in a plan view. It has a fixing portion 9 provided on the base portion 7 at a position between them. The front and rear connecting portions 8 are formed by bending the front and rear edge portions of the steel plate plate constituting the fall prevention device 6.

As shown in FIGS. 3 to 5, the connecting portion 8 has an upright portion 81 extending upward from the front and rear ends of the base portion 7 and the outside of the base portion 7 from the upper end of the upright portion 81 (the base portion 7 is a plan view). It is provided with a flange portion 82 extending to the opposite side) and an engaging hole 83 for upper and lower openings provided in the flange portion 82. In the present embodiment, the upright portion 81 is provided in a vertical posture with respect to the base portion 7 in a horizontal posture, and the flange portion 82 is provided in a horizontal posture. Further, the engaging hole 83 is provided at the center position on the left and right of the flange portion 82.

The width dimension of the base portion 7 and the connecting portion 8 (standing portion 81 and flange portion 82) is the same. Further, the base portion 7 has a substantially rectangular shape in the front-rear length, while the upright portion 81 and the flange portion 82 have a substantially rectangular shape in the left-right longitudinal direction (horizontally long).

As shown in FIGS. 3 to 5, a screw-in type adjuster member 23 attached upward from below is provided at a portion near the four corners of the base 4 of the cabinet 1. The height of the base 4 can be adjusted by rotating the adjuster member 23. In the present embodiment, the adjuster member 23 constitutes a connecting screw that connects the base 4 and the fall prevention device 6.

In the fall prevention device 6, the distance between the front and rear engaging holes 83 is configured to be the same as the distance between the pair of adjuster members 23 arranged in the front-rear direction on the base 4. The left and right fall prevention devices 6 are inseparably connected to positions near the left and right edges of the base 4 by inserting the shaft portion of the adjuster member 23 into the engagement hole 83 of the connecting portion 8 from below.

Further, the fall prevention device 6 is configured so as not to protrude from the cabinet 1 (base 4) in a plan view when attached to the base 4. As a result, it is possible to prevent the fall prevention device 6 from coming into contact with the human eye and deteriorating the appearance, or preventing a person from stumbling on the fall prevention device 6.

As shown in FIGS. 3 to 5, the fixing portion 9 of the fall prevention device 6 includes a large number of screw insertion holes 91 arranged in a staggered pattern. Each screw insertion hole 91 is provided with a size capable of inserting the shaft portion of the fixing screw 10 screwed into the floor F from above. In the fixing portion 9, the arrangement region of the screw insertion holes 91 is provided separately on the left and right so as not to overlap with the auxiliary frame 21 of the base 4 described later in a plan view.

<Structure of base unit>
As shown in FIGS. 1 to 5, the basic structure of the base 4 is the same as that of the conventional one, and has left and right side frames 16 and a front frame 17 and a rear frame 18 connecting them. Each frame 16, 17, 18 is formed in a groove shape having an upper horizontal piece 19, a lower horizontal piece 20, and an upright piece 20a provided at the tip of the lower horizontal piece 20.

The lower horizontal piece 20 is narrower than the upper horizontal piece 19. Further, although the upper horizontal piece 19 of the front frame 17 is wider than the upper horizontal piece 19 of the rear frame 18, both may have the same width.

Auxiliary frames 21 extending in the front-rear direction are arranged on the left and right sides of the base 4. The auxiliary frame 21 has a U-shaped shape that opens upward, and both front and rear ends are fixed to the front frame 17 and the rear frame 18 by welding or the like.

As is shown in FIGS. 3B and 4, the bottom surface portion 22 of the auxiliary frame 21 is located above the lower end portion of the base 4. The connecting portions 8 of the fall prevention device 6 are inseparably connected to the front and rear ends of the bottom surface portion 22 of the auxiliary frame 21 by a screw-in type adjuster member 23 via a nut member 32.

As shown in FIG. 5, when the fall prevention device 6 is attached to the base 4, the shaft portion of the adjuster member 23 is placed in the engaging hole 83 of the connecting portion 8 of the fall prevention device 6 with the base 4 turned upside down. And screw it into the nut member 32 from above. As a result, the base 4 and the fall prevention device 6 can be connected with a low cost and a simple configuration without using a dedicated connecting screw. Further, the fall prevention device 6 can be connected to the base 4 by an easy and short-time operation of screwing the adjuster member 23 into the nut member 32.

It is also possible to connect the connecting portion 8 of the fall prevention device 6 to the auxiliary frame 21 by using a separately prepared fastener such as a connecting screw without using the adjuster member 23 and the nut member 32. .. Further, it is also possible to connect the fall prevention device 6 to another portion of the base 4 (for example, the lower horizontal piece 20) by using an adjuster member 23 or a fastener such as a dedicated connecting screw. Further, one connecting portion 8 may be connected to the base 4 with a plurality of fasteners.

<Floor composition>
As shown in FIG. 4, in the present embodiment, the floor F has a double floor structure called a so-called raised floor. Specifically, the floor F is on a floor base material 53 supported by a support leg 52 on a floor slab 51 such as a concrete slab with a space provided between the floor base material 53 and the floor base material 53. It is provided with a floor finishing material 54 such as a carpet laid on the floor. The floor base material 53 is made of, for example, metal or concrete. As shown in FIGS. 3 and 4, the fall prevention device 6 is fixed to the floor base material 53 of the floor F by using the fixing screws 10.

<Summary of one embodiment>
An example of the construction procedure of the fall prevention device 6 will be described. First, as shown in FIG. 5, the base 4 is arranged upside down. The fall prevention device 6 is connected to each of the left and right edges of the lower surface of the base 4 by using the adjuster member 23.

Next, the base 4 with the fall prevention device 6 on the lower side is placed at a desired position on the floor F. As shown in FIGS. 3 and 4, the shaft portion of the fixing screw 10 is inserted through the screw insertion hole 91 provided in the fixing portion 9 of the fall prevention device 6 from above, and penetrates the floor finishing material 54 to the floor. It is screwed into the base material 53 and fixed.

At this time, since the fixing portion 9 of the fall prevention device 6 is provided with a large number of screw insertion holes 91, the screwing position of the fixing screw 10 can be appropriately selected. For example, there is a case where a member (support leg 52 of the floor F) in which the fixing screw 10 is difficult to be screwed is present below one screw insertion hole 91 of the base 4 and the fall prevention device 6 arranged at a desired position. Also, another screw insertion hole 91 can be used to fix the base 4 and the fall prevention device 6 to the floor F without changing their positions.

In the present embodiment, the fall prevention device 6 is fixed to the floor F at two points sandwiching the auxiliary frame 21 in a plan view with respect to one fall prevention device 6. In this way, the fall prevention device 6 can be firmly fixed to the floor F at a plurality of places by using the plurality of fixing screws 10.

Next, the cabinet body 2 of the cabinet 1 is placed on the base 4, and the bottom of the cabinet body 2 and the upper horizontal piece 19 of the base 4 are firmly connected using a fixing tool such as a screw (not shown). do. As a result, the cabinet 1 is fixed to the floor F via the fall prevention device 6.

As shown in FIG. 6, when the floor F (building) sways during an earthquake and the cabinet 1 sways, the fall prevention device 6 has a fixing portion 9 fixed to the floor F by a fixing screw 10. The movement and tipping of 1 can be reliably prevented, and the force applied to the fixed portion 9 can be reduced by elastically bending and deforming the base portion 7 (including the fixed portion 9). For example, if the base 4 is directly fixed to the floor F with a fixing tool such as a screw, when the cabinet 1 shakes due to repeated earthquakes, a large pulling force is applied to the fixing tool and the fixing tool is pulled out from the floor F, and the cabinet 1 is moved. I will fall. On the other hand, in the present embodiment, the pulling force applied to the fixing screw 10 when the cabinet 1 shakes is reduced by the deformation of the base 7, so that the fall prevention device 6 is significantly suppressed from peeling from the floor F. be able to. Therefore, even if earthquakes occur repeatedly, the cabinet 1 can be prevented from moving and falling, and safety can be greatly improved.

Further, in the present embodiment, the fall prevention device 6 can be easily attached / detached by a simple operation by using the adjuster member 23 provided on the base 4. Even after the fall prevention device 6 is fixed to the floor F with the fixing screws 10, the height of the base 4 (cabinet 1) can be adjusted by rotating the screw-in type adjuster member 23, so that it is practical and versatile. Is high. Further, since the fall prevention device 6 is divided into two left and right for one base 4, the size of the fall prevention device 6 can be made smaller than that of the base 4, so that the fall prevention device 6 can be transported and stored. Convenience is improved. The left and right fall prevention devices 6 may be formed of one metal plate and connected to each other.

<Other embodiments>
In the embodiment shown in FIGS. 7 and 8, the structure of the floor F is different from that of the above embodiment. The floor F of the present embodiment is configured by laying a plurality of laying-type resin panels 55 on the floor slab 51 and laying a floor finishing material 54 on the resin panel 55.

In the present embodiment, the fixing screw 10 is screwed into the floor slab 51 through the floor finishing material 54 and the resin panel 55 by inserting the screw insertion hole 91 from above the fixing portion 9 of the fall prevention device 6. As a result, the fall prevention device 6 can be firmly fixed to the floor F, and the movement and fall of the cabinet 1 can be reliably prevented.

Further, since the fixing portion 9 of the fall prevention device 6 is provided with a large number of screw insertion holes 91, for example, below the screw insertion holes 91 of the base 4 and the fall prevention device 6 arranged at desired positions. Even if there is a member (reinforcing bar material inside the floor slab 51) where it is difficult to screw in the fixing screw 10, the base 4 and the fall prevention device 6 can be positioned by using the other screw insertion holes 91. It can be fixed to the floor F at a desired position without changing.

<Further Other Embodiment>
In the embodiment shown in FIGS. 9 and 10, the floor F is a floor type in which a plurality of resin panels 55 are spread on the floor slab 51, and the lower part is between the resin panel 55 and the floor finishing material 54. The plate 56 is arranged, and the fixing screw 10 is fixed to the lower plate 56. Although not shown, the lower plate 56 is fixed to the resin panel 55 by fixing means such as an adhesive, double-sided tape, and a hook-and-loop fastener. The lower plate 56 is a member that constitutes a part of the floor F.

As shown in FIG. 9, the lower plate 56 is configured such that the front-rear length is larger than the front-rear length (depth dimension) of the base 4, and is arranged so as to protrude from the front and back of the base 4 in a plan view. As a result, when the cabinet 1 swings due to an earthquake or the like, the lower plate 56 is replaced to prevent the cabinet 1 from tipping over. Since the lower plate 56 is covered with a floor finishing material 54 such as a carpet, deterioration of the appearance can be prevented.

Further, as shown in FIG. 11, a fixing screw 15 in which a nut member 57 is fixed to the upper surface of the lower plate 56 and a screw insertion hole 91 is inserted into the nut member 57 from above the fixing portion 9 of the fall prevention device 6. May be screwed in to fix the fall prevention device 6 to the floor F.

According to these embodiments, the lower plate 56 is arranged between the resin panel 55 and the floor finishing material 54 with respect to the floor F in which the floor slab 51 is laid with the laid-down resin panel 55. With this simple configuration, the fall prevention device 6 can be firmly fixed without damaging the floor slab 51.

<Others>
Although the embodiments of the present invention have been described above with the drawings, the present invention can be embodied in various ways. For example, the target furniture is not limited to cabinets, and as mentioned in the technical field, electrical / electronic equipment, vending machines, refrigerators, product display shelves, etc. are also targeted.

Further, in the above embodiment, the base 7 of the fall prevention device 6 has a flat plate shape, but for example, bending is added to the base 7 or the base 7 is formed into a corrugated plate shape. It is also possible to give the base 7 a desired rigidity (difficulty of deformation). Further, the floor F is not limited to the double floor structure, and may be, for example, a floor structure in which there is no space in which wiring or the like can be routed between the floor slab and the floor finishing material.

The invention of the present application can be embodied as a fall prevention device for furniture. Therefore, it can be used industrially.

1 Cabinet 4 Base 6 Fall prevention device 7 Base 8 Connecting part 9 Fixing part 10 Fixing screw 15 Fixing screw 23 Adjuster member 81 Standing part 82 Flange part 83 Engagement hole 91 Thread insertion hole F Floor

Claims (7)

With elastic plates placed on the floor below the fixtures,
The plate comprises a plurality of connecting portions connected to the fixture and a fixed portion fixed to the floor at a position between the plurality of connecting portions in a plan view.
Fall prevention device for furniture. The fixing portion includes a screw insertion hole through which a shaft portion of a fixing screw screwed into the floor from above can be inserted.
The fall prevention device for furniture according to claim 1. The fixing portion is provided with a plurality of the screw insertion holes.
The fall prevention device for furniture according to claim 2. The plate comprises a plate-like base in contact with the floor surface.
The connecting portion is formed by bending the plate, and has an upright portion extending upward from the end portion of the base portion, a flange portion extending outward from the upper end of the upright portion, and the flange portion. Equipped with an engaging hole for the upper and lower openings provided in the part,
By inserting the shaft portion of the connecting screw, which is attached upward to the lower part of the fixture, into the engaging hole, the connecting portion and the fixture can be connected to each other.
The fall prevention device for furniture according to any one of claims 1 to 3. The connecting screw is composed of a screw-in type adjuster member provided in the lower part of the fixture.
The fall prevention device for furniture according to claim 4. It is equipped with a base on which the fixture body is placed and a fall prevention device for fixtures that is attached to the bottom of the base.
The furniture fall prevention device comprises an elastic plate placed on the floor below the base, and the plate includes a plurality of connecting portions connected to the fixture and the plurality of connecting portions in a plan view. Includes a fixed portion, which is fixed to the floor at a position between.
Base unit for furniture. The furniture fall prevention device according to any one of claims 1 to 5 or the furniture base unit according to claim 6 is provided.
furniture.

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