JP2013236892A - Turnover prevention device for furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously materialize both compactization of a width-direction dimension when shipping a product and an inherent function of the product of stabilizing furniture.SOLUTION: A turnover prevention device for furniture is used in a state that the turnover prevention device is interposed between a ceiling of a room and a top plate of the furniture in a stretching state. The turnover prevention device 1 includes: a strut 2 having a vertically telescopic inner/outer double-cylinder structure; an operation member 3 capable of changing over between an unlock state allowing the telescopic motion of the strut 2 and a lock state of restricting the retraction of the strut 2; and abutment members 4, 5 respectively installed to the upper end and the lower end of the strut 2. Each abutment member 4, 5 has: a central member 16 positioned in a central part in the right-and-left direction; and a pair of right and left expansion members 17 mounted to the central member 16 such that the expansion members 17 can come out/in, in the right-and-left direction, and expanding an abutment width of the abutment member 16 in a stretching state to the outside in the right-and-left direction.

Description

  The present invention relates to a furniture overturn prevention device that is used in a state of being stretched between a ceiling of a room and the top plate of the furniture.

  As a fall prevention device for this kind of furniture, it is possible to switch between a support column with an inner and outer double cylinder structure that is vertically expandable and contracted, an unlocked state that allows the column to be expanded and contracted, and a locked state that restricts the contraction of the column. A device including an operation member and contact members respectively attached to an upper end and a lower end of a support is known (see Patent Document 1).

In order to mount such a fall prevention device in the upper space of furniture such as a chest or a cupboard, first, the operation member is switched to the unlocked state so that the column can be expanded and contracted, and in this state, the lower contact member Is placed on the top plate of furniture and set so that the column is almost vertical.
After that, the column is extended until the upper contact member comes into contact with the ceiling of the room, and the operation member is switched to the locked state to restrict the contraction of the column. Set it so that it will be in a stretched state.

  JP 9-28489 A

In the above conventional fall prevention device, the upper and lower abutting members are made of a fixed-length bar-like material that is long in the horizontal direction, so that even if a relatively large shaking occurs due to an earthquake or the like, it is necessary to stabilize furniture. It is necessary to set the length of the rod-like material to a certain size.
However, when the length of the rod-like material is increased, there is a drawback that the width-direction dimension of the product at the time of factory shipment increases, and the storage and transport costs of the product increase.

  In view of such conventional problems, the present invention provides a furniture overturn prevention device that can achieve both a compact size in the width direction at the time of product shipment and the original function of the product that stabilizes the furniture. The purpose is to provide.

  The fall prevention device of the present invention is a fall prevention device for furniture that is used in a stretched state between the ceiling of the room and the top plate of the furniture, and has a support column with an inner and outer double cylinder structure that is vertically expandable and contractable. An operation member that can be switched between an unlocked state that allows expansion and contraction of the support column and a lock state that restricts contraction of the support column, and contact members attached to the upper end and the lower end of the support column, respectively. The abutting member is attached to a central member located at the center in the left-right direction and to the central member so as to be freely retractable in the left-right direction, and expands the abutting width of the abutting member in a state of protruding outward in the left-right direction It has a pair of left and right expansion members.

  According to the fall prevention device of the present invention, the contact members attached to the upper end and the lower end of the support column are a central member located at the central portion in the left-right direction, and a pair of left and right attached to the central member so as to be freely retractable in the horizontal direction Therefore, if the both expansion members are stored in the center in the left-right direction at the time of product shipment, the size in the width direction at the time of product shipment can be made compact.

Further, since the pair of left and right expansion members extend the contact width of the contact member in the state of extending outward in the left-right direction, the user is required to pull out the expansion member to use the extended state when using the product. For example, the original function of a product that stabilizes furniture can be exhibited.
Therefore, according to the overturn prevention device of the present invention, it is possible to achieve both compactness in the width direction at the time of product shipment and the original function of the product that stabilizes furniture.

In the overturn prevention device of the present invention, it is preferable that the contact width of the expansion member in the protruding state is set to be larger than the pitch width of the crosspieces to be constructed on the inner surface of the ceiling.
If such an expansion member is employed, by using the overturn prevention device with the expansion member in an overhanging state, at least one crosspiece is positioned within the range of the contact width of the contact member. The effect of preventing the furniture from falling over when shaking occurs can be improved.

In the overturn prevention device of the present invention, it is preferable that a holding member for holding the expansion member in an overhanging state is provided.
If such a holding member is employed, it is possible to prevent the fall-preventing effect from being lowered by pulling the expansion member toward the center due to shaking such as an earthquake.

In the fall prevention device of the present invention, the contact member is made of a rubber that is interposed between the mounting cylinder that receives the upper end or lower end of the column and the upper and lower ends of the mounting cylinder and the column. It is preferable to have a buffer cylinder.
In this case, the upper end or the lower end of the column is fitted to the mounting cylinder of the abutting member (specifically, the central member) via the buffer cylinder, so that the bending moment generated in the column mounting portion is buffered. It is relieved by the elastic deformation of the cylindrical body, and it is possible to prevent the attaching part of the support from being damaged early due to an earthquake or the like.

  As described above, it is possible to achieve both a compact size in the width direction at the time of product shipment and an original function of the product that stabilizes furniture.

  It is a perspective view of the fall prevention device concerning an embodiment of the present invention.   It is a front view of the same fall prevention device, (a) shows the contracted state of the support and the storage state of the expansion member, (b) shows the extended state of the support and the extended state of the expansion member.   It is an expanded sectional view for showing an example of a holding member.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG.1 and FIG.2, the fall prevention apparatus 1 of this embodiment is interposed between the ceiling (not shown) of the room and furniture (not shown) such as a chiffon or a library in a stretched state. The support column 2 that can be expanded and contracted in the vertical direction, the operation member 3 for locking or unlocking the expansion and contraction of the support column 2, and the contact members 4 respectively attached to the upper end and the lower end of the support column 2 are used. And 5. In addition, in FIG.2 (b), a part of contact member 4 is drawn by the cross section.

The support column 2 has an outer cylinder body 11 positioned on the lower side, and an inner cylinder body 12 inserted into the outer cylinder body 11 so as to be movable up and down. These cylinders 11 and 12 are each made of a steel cylinder having a substantially D-shaped cross section on the back side and made of steel (see FIG. 1).
As shown in FIG. 2, the operation member 3 is provided at the upper end portion of the outer cylindrical body 11. The operation member 3 includes a screw shaft 13 that passes through the front wall portion of the outer cylinder 11 and an operation knob 14 that is a head of the screw shaft 13.

The inner end portion of the screw shaft 13 passes through the slit 15 formed in the front wall portion of the inner cylindrical body 12 and reaches the inside of the inner cylindrical body 12. A nut member (not shown) set in a state that is slidable in the vertical direction with respect to the inner cylinder body 12 and is prevented from rotating is housed inside the inner cylinder body 12. Screwed into the inner end of the shaft 13.
Therefore, when the operation knob 14 is rotated in a certain direction (for example, counterclockwise), the clamping between the cylindrical wall portions by the operation knob 14 and the nut member is released, and the “unlock state” that allows the column 2 to expand and contract is allowed. It becomes.

Further, when the operation knob 14 is rotated in the opposite direction (for example, clockwise), the cylindrical wall portions are sandwiched between the operation knob 14 and the nut member, and the “lock state” in which the contraction of the column 2 is restricted. It is supposed to be.
As described above, the operation member 3 of the present embodiment can be switched between an unlocked state in which the expansion and contraction of the support column 2 is allowed and a locked state in which the contraction of the support column 2 is restricted.

As shown in FIGS. 1 and 2, the upper and lower contact members 4 and 5 of the present embodiment are made of a hard plastic member formed in substantially the same shape, and a central member 16 located in the central portion in the left-right direction. The central member 16 has a pair of left and right expansion members 17 disposed on the left and right sides.
Among these, the central member 16 is formed of a substantially square flat box body that is long in the left-right direction and the front-rear direction, and the front side surface of the box body is formed in a curved shape having a convex central portion. The lower and upper ends of the support column 2 are respectively attached to the center member 16 of the upper and lower contact members 4 and 5 at a position that is centered in the left-right direction and biased to the rear side in the front-rear direction.

That is, as shown in FIG. 1, the mounting position of the support column 2 with respect to the central member 16 is disposed at the central portion in the left-right direction, and is disposed at a position deviated from the rear portion (position close to the rear side surface) in the front-back direction. Has been.
The left and right extension members 17 are composed of a pair of front and rear slide arms 18 and a ground frame 19 that is long in the front-rear direction and integrally connects the ends of the slide arms 18. The slide arm 18 is slidably inserted into the left and right side surfaces of the central member 16, and the grounding frame 19 has a grounding surface 20 that is substantially flush with the grounding surface of the central member 16 (see FIGS. 2 and 3).

Accordingly, the left and right expansion members 17 are attached to the central member 16 so as to be movable in the left-right direction. When the grounding frame 19 is pushed in the left-right direction toward the side closer to the central member 16, FIG. ).
On the contrary, when the grounding frame 19 is pulled out to the side away from the central member 16 along the left-right direction, the projecting state shown in FIG. 2B is obtained, whereby the contact width of the contact members 4 and 5 is expanded. It is like that.

Here, in order to make it possible to prevent one piece of furniture from falling with one tipping prevention device 1, it is preferable to set the width dimension of the upper and lower contact members 4 and 5 to approximately 30 to 50 cm.
The reason for this is that the pitch width of the crosspieces on the ceiling of the house is often 30 cm or less. Even when the prevention device 1 is mounted, at least one crosspiece is positioned within the contact width range of the contact members 4 and 5, so that the effect of preventing the furniture from falling when a shake such as an earthquake occurs can be improved. Because.

  Therefore, the maximum width of the contact members 4 and 5 when the expansion member 17 is in the overhanging state shown in FIG. 2B is larger than the pitch width of the crosspieces to be constructed on the inner surface of the ceiling (specifically, , Approximately 30 to 50 cm) is preferable.

As shown in FIG. 2B, the center member 16 of the contact member 4 is integrally formed with a mounting cylinder 22 that receives the upper end portion of the support column 2, and the upper end of the support column 2 is formed inside the mounting cylinder 22. The parts are mated.
Further, the upper end portion of the support column 2 is not directly fitted into the mounting tube 22, but a rubber buffer cylinder 23 is interposed between the inner surface of the mounting tube 22 and the upper end portion of the support column 2. The bending moment generated in the mounting portion 2 is relaxed by the elastic deformation of the buffer cylinder 23.

Note that not only the central member 16 of the upper contact member 4 shown in FIG. 2 (b) but also the attachment portion between the central member 16 of the lower contact member 5 and the lower end portion of the support column 2 described above. The same buffer cylinder 23 is provided.
In the fall prevention device 1 of the present embodiment, a holding member 24 that holds the expansion member 17 in an overhanging state is provided. FIG. 3 is an enlarged cross-sectional view illustrating an example of the holding member 24.

As shown in FIG. 3, the holding member 24 includes a fitting claw 25 formed at the proximal end portion of the slide arm 18 of the expansion member 17 and a holding hole 26 into which the fitting claw 25 is fitted. The holding hole 26 is formed in the ground plate of the central member 16.
Therefore, when the fitting claw 25 is fitted into the holding hole 26, the expansion member 17 cannot slide to the center in the left-right direction, and the expansion member 17 is held in an overhanging state. The fitting claw 25 can be released from the holding hole 26 by pushing the fitting claw 25 downward with the tip of the driver.

In the fall prevention device 1 of the present embodiment, at the time of factory shipment, as shown in FIG. 2A, both the support column 2 and the expansion member 17 are in a contracted state.
In order to mount the fall prevention device 1 in the upper space of furniture such as a chiffon or a cupboard, the fall prevention device 1 is accommodated in the upper space of the furniture, and the rear side surface of the lower contact member 5 is attached to the furniture. After the fall prevention device 1 is placed on the top plate of the furniture so as to be substantially along the edge on the back side of the top plate, the expansion members 17 of the upper and lower contact members 4 and 5 are pulled out and extended. State.

Thereafter, the operation knob 14 is rotated in the loosening direction so that the support column 2 can be expanded and contracted. The support column 2 is extended until the upper contact member 4 contacts the ceiling. Regulate the shrinkage of
Thereby, the fall prevention device 1 is set so as to be stretched between the ceiling of the room and the top plate of the furniture.

According to the fall prevention device 1 of the present embodiment, the contact members 4 and 5 attached to the upper end and the lower end of the support column 2 protrude from the center member 16 located in the center portion in the left-right direction and the center member 16 in the left-right direction. And a pair of left and right expansion members 17 that are removably mounted.
Therefore, as shown in FIG. 2 (a), if the two expansion members 17 are stored in the center in the left-right direction at the time of product shipment, the size in the width direction at the time of product shipment can be made compact.

Further, since the pair of left and right expansion members 17 are configured to expand the contact width of the contact members 4 and 5 in a state of extending outward in the left and right direction, the user can use the expansion members 17 when using the product. By pulling out and making it overhang (state of FIG. 2 (b)), the original function of the product that stabilizes furniture can be exhibited.
Thus, according to the fall prevention device 1 of the present invention, it is possible to achieve both compactness in the width direction at the time of product shipment and the original function of the product that stabilizes furniture.

  In the illustrated embodiment, the expansion member 17 is provided only on the left and right sides of the central member 16. However, a similar expansion member (not shown) that can be retracted in the front-rear direction is used as the central member 16. It may be provided on the front side.

1: Fall prevention device 2: Support column 3: Operation member 4: Contact member (upper side)
5: Contact member (lower side)
16: Central member 17: Expansion member 22: Mounting cylinder 23: Buffer cylinder 24: Holding member

Claims (4)

A furniture fall prevention device that is used in a stretched state between the ceiling of the room and the top plate of the furniture,
A strut with an inner and outer double cylinder structure that can be vertically expanded and contracted,
An operation member that can be switched between an unlocked state that allows expansion and contraction of the column and a locked state that restricts contraction of the column,
Abutting members attached to the upper end and the lower end of the column, respectively.
The abutting member is attached to a central member located at the center in the left-right direction and to the central member so as to be freely retractable in the left-right direction, and expands the abutting width of the abutting member in a state of protruding outward in the left-right direction A furniture fall-preventing device comprising a pair of left and right expansion members.   2. The furniture overturn prevention device according to claim 1, wherein a contact width of the extension member in an overhanging state is set to be larger than a pitch width of a crosspiece constructed on the inner surface of the ceiling.   The furniture overturn prevention device according to claim 1 or 2, further comprising a holding member that holds the expansion member in an overhanging state.   The abutting member includes an attachment cylinder that receives an upper end portion or a lower end portion of the support column, and a rubber buffer cylinder that is interposed between the attachment tube and the upper end portion or the lower end portion of the support column. The fall prevention device for furniture according to any one of 1 to 3.

Images