JP3015517U - Furniture fall prevention device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a furniture overturn prevention device that prevents the furniture from overturning even in the unlikely event that it will not be displaced or come off due to vibration or shaking such as an earthquake. [Structure] A small-diameter pipe in which a sliding concave groove parallel to the central axis of the pipe is provided on one side of a peripheral wall, and locking concave portions are provided at appropriate intervals in the sliding concave groove, and a cylinder into which an engaging element is inserted. A large-diameter pipe having a tubular body fitted at its upper end is slidably and expandably fitted to each other, and the tubular body serves as a fixing means for shortening both pipes. The top and bottom ends of the furniture were fitted with a pressing body provided with a non-slip and leaf spring with spikes and a small hole for nail driving, to provide a furniture fall prevention device. [Effect] Since the upper and lower pressing bodies are provided with spiked leaf springs, the spikes do not separate due to the elastic restoring force even if the pressing body separates from the contact surface due to vertical vibration, and the device body does not shift or come off. Can be prevented from falling.

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing furniture such as a closet, a bookshelf, and a cupboard in a room from falling when it is subjected to vibration or shock due to an earthquake or the like.

[0002]

2. Description of the Related Art As a conventional furniture fall prevention device, a device for fixing a wall surface of a furniture back to a furniture top plate by a metal fitting, or a jack-up or a turn-up between a ceiling plate of a room and a furniture top plate. There are buckling-type devices that pull up and down, and seismic isolation devices that incorporate vibration damping members inside the furniture or on the pedestal on which the furniture is placed. In addition, the applicant of the present application has invented and applied for a "protruding and extending support column" in Japanese Patent Application No. 6-16184. The present invention further improves it and limits the purpose of use to a furniture fall prevention device.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above conventional device in which the wall surface and the top plate of the furniture are fixed with a metal, the wall surface or the furniture is seriously damaged as a mounting hole, and the furniture cannot be removed when the furniture is moved. It is not preferable because it is troublesome, and the seismic isolation device incorporating the vibration damping member has the drawbacks that the furniture becomes large and it does not fit the size of the existing furniture, and the device is complicated and therefore expensive. is there.

Therefore, in the present invention, the structure and the mounting method are the simplest, and moreover, a device for pulling the ceiling plate and the top plate of the furniture up and down without leaving noticeable scratches in the room or furniture. It is an object of the present invention to provide a device that prevents the furniture from tipping over by surely acting even in the unlikely event that the supporting position does not shift back and forth, left and right, or comes off due to vibration or shaking.

[0005]

Means for Solving the Problem A small-diameter pipe in which a sliding concave groove parallel to the central axis of the pipe is provided on one side of a peripheral wall, and locking concave portions are provided in the sliding concave groove at appropriate intervals. A large-diameter pipe with a mating element inserted in the upper end is slidably and telescopically fitted to each other, and the cylindrical body serves as a fixing means for shortening both pipes. In the projecting strut, the pressing body with anti-slip, leaf spring with spikes and nail driving small holes was attached to the upper and lower ends, respectively, to provide a furniture fall prevention device.

[0006]

[Advantage] The furniture fall prevention device according to the present invention is configured such that a large-diameter pipe and a small-diameter pipe are inserted inward and outward, and the entire length is appropriately expanded and contracted by mutual sliding and expanding / contracting operation, and is fitted to the upper end of the large-diameter pipe. After fixing the shortening of both pipes by engaging the engaging element inside the tubular body with the locking recess of the small diameter pipe, stand upright in the mounting space between the ceiling in the room and the top plate of the furniture Both pressing bodies are brought into contact with the upper material and the lower material, and the jack device at the lower portion is operated to project the bolt inserted in the large-diameter pipe downward, thereby generating a compressive force to support the upper and lower pressing bodies. The furniture is pressed down on the ceiling surface and the top plate surface of furniture to push the furniture downward.The engagement between the engaging element and the engagement recess ensures that both pipe joints are fixed and the jack device is Since the total length is not shortened even when the pressure is applied in the vertical direction, the upper and lower pressing bodies are crimped. The strength is sustained and the thrust effect is not reduced.

Further, even if the upper and lower pressing bodies are momentarily separated from the respective contact surfaces facing each other by vibrating vertically due to an earthquake or the like, the leaf spring in the pressing body is restored by the elastic force, so that the spikes at the tip of the spring cause the spikes on the ceiling surface. And the furniture does not separate from the furniture and the position of the pressing body does not shift. Even in the case of horizontal vibration, if it is more firmly fixed with anti-slip provided on the upper and lower pressing bodies, the pressing body will not shift back and forth and left and right if a small nail is driven into the small hole, preventing furniture from falling over. Can be done reliably.

[0008]

【Example】

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Each of the accompanying drawings illustrated as an embodiment of the present invention will be described. FIG. 1 is a perspective view showing an entire furniture fall prevention device according to the present invention, in which a small-diameter pipe 2 is slidably and telescopically inserted into a large-diameter pipe 1 so that the total length can be adjusted. The upper end of the cylindrical body 3 fitted to the upper end of the large-diameter pipe 1 is horizontally bent inward at the upper end, and the lower end is bent outwardly. A bolt 5a (not visible in the drawing) is fitted at the lower end, a cap 5b is inserted through the center of the bolt 5a, and the knob 5c is screwed into the bolt 5a protruding from the large diameter pipe 1. The jack device 5 has a lower pressing body 6 screwed to the lower end thereof.

Further, a sliding groove 2a parallel to the central axis of the pipe is formed on one side surface of the peripheral wall of the small-diameter tube 2 over the entire length, and the bottom of the sliding groove is provided at a plurality of positions at appropriate intervals. The cut recesses 2b ... Are formed, and the upper pressing body 7 is fitted to the upper end portion.

FIG. 2 is an exploded perspective view showing the furniture fall prevention device according to the present invention in an exploded manner. The bolt 5 a of the jack device 5 is a hexagonal bolt and is inserted into the lower end portion of the large diameter pipe 1. The central portion of the cap 5b having the rib 5b1 is inserted, the central portion of the knob 5c is screwed, and is screwed into the screw hole 6a of the central upper surface of the lower pressing body 6. Small holes 6b, 6b for nail driving are provided near the left and right ends of the lower pressing body 6, and a plate panel 8 having a U-shaped cross section is screwed by a screw 10 at the center on the pressing surface side. Nonslip 9, 9 is attached to the. The upper pressing body 7 has the same structure as the lower pressing body 6 except that the upper pressing body 7 has an insertion hole 7a in which the upper end portion of the small diameter tube 2 is fitted in the center of the lower surface. It should be noted that the left and right ends of the leaf spring 8 are provided with small protrusions to form a spike 8a.

FIG. 3 is a vertical cross-sectional view showing a state in which the ceiling plate T and the furniture K are stretched vertically by the fall prevention device according to the present invention, and the small holes 6b for nail driving of both upper and lower pressing bodies, A state in which a thin nail P is driven into the ceiling plate T and the furniture K through 7b is also shown.

FIG. 4 and FIG. 5 are vertical cross-sectional views showing an enlarged joint portion of the large-diameter pipe 1 and the small-diameter pipe 2, and FIG. 4 shows the small-diameter pipe 2 upward from the large-diameter pipe 1. FIG. 5 shows a state in which the small-diameter pipe 2 is slid downward and the hook recess 4b of the small-diameter pipe 2 is engaged with the hook piece 4a of the engaging element 4 so that the pressing force is applied from above and below. The cylindrical body 3 inserted into the upper end of the large-diameter pipe 1 is in a state in which the sliding contact is made by inserting the engaging element 4 as shown in the perspective view of FIG. A slant wall 3b is formed by slanting the upper end wall of the groove 3a toward the outside to form a wide empty portion 3c in the upper portion, and the upper portion of the engaging element 4 can be moved vertically and inward and outward in the empty portion 3c. I am doing it.

As shown in the perspective view of FIG. 6 (b), the engagement element 4 has a horizontal hook piece 4 a bent at the upper end thereof, and the tip end of the hook piece slides on the small-diameter pipe 2. Both sides are obliquely cut into a shape that makes sliding contact with the moving concave groove 2a, and a slanting piece 4b, a hanging piece 4c, and an outward bending piece 4d are continuously provided below the hook piece 4a. As shown in FIGS. 4 and 5, the tubular body 3 is fitted into the sliding groove 3a on one side.

FIG. 7 is a cross-sectional view showing a state in which the fall prevention device of the present invention is installed between the ceiling plate K2 and the ceiling plate T of the furniture K arranged with the wall plate W as the back and is vertically stretched. Since the ceiling plate T and the furniture top plate K2 are usually thin plates, and the strength is weak, the upper and lower pressing bodies are installed by the upper and lower pressing bodies to press the edge N of the ceiling and the edge frame material K1 of the furniture. Install it along the wall board W so that When the furniture K falls due to an earthquake or the like, the furniture K tilts forward around the X point and is displaced to K ′, and the Y point is displaced upward and forward to the Y ′ point. The tipping prevention device of the present invention prevents the furniture from tipping over by pressing the Y point downward to prevent the upward displacement.

8 and 9 are vertical cross-sectional views showing the jack device 5 and the lower pressing body 6 at the lower end of the large-diameter pipe 1, and FIG. 6 is pressed against the furniture K, and the leaf spring 8 is deformed into an M-shaped cross section by a pressing force, and the spikes 8a at both ends of the left and right are abutted against the furniture K by elastic restoring force.

FIG. 9 is a vertical cross-sectional view showing a case where vertical vibration is generated due to an earthquake or the like in the state of FIG. 8 and a gap is instantaneously created between the lower pressing body 6 and the furniture K. Is. The slip stoppers 9 and 9 are separated from the furniture K, but the leaf spring 8 returns to the original U-shaped cross section due to the elastic force, and the spikes 8a at both ends of the left and right ends come into contact with each other without separating from the furniture K. Holds the state. Although not shown in the drawing, the same operation is performed on the joint surface between the upper pressing body and the ceiling plate.

[0017]

[Effects of the Invention] When the engaging element is engaged with the locking recess and the strut is extended, the upper end hook piece of the engaging element is clamped between the upper end of the large diameter pipe and the lower end of the cut of the small diameter pipe. The pressing force of the jack device presses the hook pieces of the holding part from above and below to increase the holding force, so that the joint fixation of both pipes is strong and there is no reduction in the overall length, so the pressing force does not decrease, and the strut Since its thrusting force continues, it will not be useless in the unlikely event of long-term use.

When a vertical vibration is applied due to an earthquake, the indoor ceiling or floor vibrates vertically, and the distance between the ceiling and furniture momentarily increases or decreases. Then, since the pressing body of the fall prevention device separates from the contact surface, if vibration continues, the support position gradually shifts, and in the worst case, the fall prevention device may come off and fall.

In order to prevent this, leaf springs with spikes are screwed onto the upper and lower pressing bodies, and the leaf springs are pressed by being pulled up and down with a jack device, so that the leaf springs are bent against elasticity and the tip end is bent. The spikes in the area are brought into contact with the contact surface by the elastic restoring force (see Fig. 8). Therefore, at the same time as the pressing body is released, the leaf spring is restored to its original shape by the elastic force, so that the tip of the spike does not come off while catching the contact surface (see Fig. 9). It is kept in its original position without slipping, and furniture can always be prevented from falling.

Further, when an earthquake causes horizontal vibration, the frictional force generated by the pressing force of the vertical pressing body is further increased by the slip stoppers provided at both ends, and it is still insufficient. If you think that, through a small hole on the left and right of the pressing body, if you drive a thin nail into the field edge of the ceiling or the frame edge material of the furniture, the resistance against horizontal force will be further increased, and the fall prevention device will Since the support position does not shift, furniture can always be prevented from falling.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire embodiment of the present invention.

FIG. 2 is an exploded perspective view showing an embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view showing an intermediate portion omitted.

FIG. 4 is an enlarged vertical cross-sectional view showing a joint between a large diameter pipe and a small diameter pipe.

FIG. 5 is an enlarged vertical sectional view showing a joint portion between a large-diameter pipe and a small-diameter pipe in a state where shortening is fixed.

FIG. 6 is a perspective view in which a tubular body and an engaging element are separated and enlarged to partially show a cross section.

FIG. 7 is a vertical sectional view showing a usage state of an embodiment of the present invention.

FIG. 8 is a sectional view showing a lower portion and an abutting portion of furniture according to an embodiment of the present invention.

9 is a cross-sectional view showing a state where the lower pressing body is separated from the furniture in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Large-diameter pipe 2 ... Small-diameter pipe 2a ... Sliding groove 2b ... Locking recess 3 ... Cylindrical body 3a ... Sliding groove 3b ... Sloping wall 3c ... Empty part 4 ... Engagement member 4a ... Hook piece 4b ... Slanting piece 4c ... Hanging piece 4d ... Bending piece 5 ... Jack device 5a ... Bolt 5b ... Cap 5b1 ... Rib 5c ... Knob 6 ... Lower pressing body 6a ... Screw hole 6b ... Small hole 7 ... Upper pressing body 7a ... Inserting hole 7b ... Small Hole 8 ... Leaf spring 8a ... Spike 9 ... Anti-slip 10 ... Screw T ... Ceiling board K ... Furniture K1 ... Frame edge material K2 ... Top board P ... Fine nail N ... Wild edge W ... Wall board

Claims (3)

[Scope of utility model registration request] 1. Large and small pipes having different diameters are slidably and telescopically fitted to each other, an upper pressing body having a slip stopper is fitted to the upper end of the small pipe, and both pipes are attached to the upper end of the large pipe. Providing a fixing means for the pipe,
A furniture fall prevention device in which a lower pressing body having a slip stopper is fitted through a jack device having a bolt inserted at a lower end thereof. 2. A large and small pipe is expanded and contracted by forming a sliding groove parallel to the pipe center axis on one side of the peripheral wall of the small diameter pipe, and allowing the engagement element to slide in the sliding groove. It becomes possible, and by engaging the engaging element with the locking recesses formed by notching at appropriate intervals in the sliding recessed groove, and further into the sliding groove of the cylindrical body fitted on the upper end of the large diameter pipe. 2. The furniture fall prevention device according to claim 1, wherein in the extension and contraction support column that fixes the shortening of both pipes by inserting and fixing, a leaf spring having spikes of small protrusions is provided on both upper and lower pressing bodies. 3. The furniture fall prevention device according to claim 1, wherein the upper and lower pressing bodies are provided with nail driving small holes.