Inversion prevention device

Abstract

To solve problems for example, since a part between the upper part of furniture and a ceiling is fixed by a tension rod, movement of the furniture is difficult, and there are pieces of furniture in which an inversion prevention device is included in a body of the furniture, therefore it is difficult to easily retrofit an inversion prevention device to existing furniture.SOLUTION: An inversion prevention device 1 mainly comprises: a front surface plate; a lower surface plate which is integrated with the front surface plate; a support plate 9 coupled to the front surface plate; and an actuation plate 10 for actuating the support plate 9. The inversion prevention device comprises a support plate lock 30, a support plate lock reception 31 and a support plate lock stop for holding an open state of the support plate 9. According to tilt of an object 4 caused by oscillation by earthquake or the like, the inversion prevention device 1 tilts, the actuation plate 10 shifts to an operation state, therefore a support plate extrusion body 19 actuates, and the support plate 9 protrudes in the tilt direction of the object 4. By the structure, inversion of the object 4 caused by oscillation by earthquake can be prevented.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a device for preventing an object from falling due to shaking such as an earthquake.

Background Art

[0002] As conventional anti - tipping devices, those with various structures are known. Patent Document 1 mainly discloses an anti - tipping device for preventing an object from tipping over. It includes a front panel provided on the bottom surface of the object and in contact with the front surface of the object, a lower panel on which the object is placed, a support plate for preventing the object from tipping over, and an activation plate for operating the support plate. When the object tilts, the anti - tipping device tilts in the same direction as the object. Starting from the support - plate operation starting point provided on the support plate, the support plate protrudes in the tilting direction of the object, and the bottom of the support plate touches the placement surface, thereby preventing the object from tipping over.

[0003] In the anti - tipping device shown in Patent Document 1, when an object tips over due to shaking such as an earthquake, the front panel tilts to support the object, thereby preventing the object from tipping over.

[0004] In the anti - tipping device shown in Patent Document 1, when a storage furniture tilts to a predetermined angle by using shaking such as an earthquake, a protruding body protrudes in the tilting direction, and the lower end of the protruding body touches the floor surface, thereby preventing the storage furniture from tipping over.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In the fall prevention device shown in Patent Document 1, in the fall prevention measures for the object, after the support plate tilts and opens, there is no holding mechanism for holding the opened state of the support plate, and if the support plate closes inadvertently, the object may fall.

[0007] The present invention has been made in view of the above circumstances, and an object thereof is to provide a fall prevention device that prevents an object from falling due to shaking such as an earthquake.

Means for Solving the Problems

[0008] A fall prevention device for preventing an object from falling, comprising a front panel provided on the bottom surface of the object and in contact with the front surface of the object, a lower panel on which the object is placed, a support plate for preventing the object from falling, and an activation plate for operating the support plate. When the object tilts, the fall prevention device tilts in the same direction as the object. Starting from the support plate operation starting point provided on the support plate, after the support plate protrudes in the tilting direction of the object, the support plate lock fixes the support plate in the previous stage, and the bottom of the support plate touches the placement surface, thereby preventing the object from falling.

[0009] Further, the fall prevention device of the present invention is characterized by comprising a transmission auxiliary structure capable of transmitting the movement of the activation plate to the support plate.

[0010] Further, the fall prevention device of the present invention is characterized by comprising an operation auxiliary structure capable of operating the support plate quickly.

[0011] Further, the fall prevention device of the present invention is characterized by comprising a support plate opening position stop capable of stopping the opening of the operated support plate at a predetermined position.

[0012] Further, the fall prevention device of the present invention is characterized by comprising a malfunction prevention structure for preventing malfunction during movement of the object.

[0013] Further, the fall prevention device of the present invention is characterized by comprising notification means for notifying the fall of the object.

Advantages of the Invention

[0014] A fall prevention device for preventing an object from falling, comprising a front panel provided on the bottom surface of the object and in contact with the front surface of the object, a lower panel on which the object is placed, a support plate for preventing the object from falling, and a starting plate for operating the support plate. When the object falls, the fall prevention device falls in the same direction as the object. Starting from the support plate operation starting point provided on the support plate, after the support plate protrudes in the falling direction of the object, the support plate lock fixes the previous support plate, and the bottom of the support plate touches the placement surface. With this structure, the fall of the object can be prevented.

[0015] Further, the fall prevention device of the present invention comprises a transmission auxiliary structure capable of transmitting the movement of the starting plate to the support plate. With this structure, the fall of the object can be prevented.

[0016] Further, the fall prevention device of the present invention comprises an operation auxiliary structure capable of operating the support plate. With this structure, the fall of the object can be prevented.

[0017] Further, the fall prevention device of the present invention comprises a support plate release position stop capable of stopping the release of the operated support plate at a predetermined position. With this structure, the fall of the object can be prevented.

[0018] Further, the fall prevention device of the present invention comprises a malfunction prevention structure for preventing malfunction during the movement of the object. With this structure, malfunction during the movement of the object, etc. can be prevented.

[0019] Further, the fall prevention device of the present invention comprises notification means for notifying the fall of the object. With this structure, when the object is in a fallen state, it can be made known that there is a risk of falling.

Brief Description of the Drawings

[0020]

Figure 1

Figure 2

Figure 3

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Figure 9

Embodiments for Carrying Out the Invention

[0021] Hereinafter, the fall prevention device 1 according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description of the present embodiment, the same members are generally denoted by the same reference numerals, and repeated descriptions are omitted. Also, the vertical direction indicates the height direction of the fall prevention device 1, the horizontal direction indicates the width direction of the fall prevention device 1, and the front-rear direction indicates the depth direction of the fall prevention device 1.

[0022] FIG. 1 is a perspective view for explaining the steady state 2 of the fall prevention device with an object mounted thereon according to an embodiment of the present invention (A), and a perspective view of only the fall prevention device 1 (B). FIG. 2 is a perspective view for explaining the operating state 3 of the fall prevention device with an object mounted thereon according to an embodiment of the present invention (A), and an enlarged perspective view for explaining the operating state 3 of the fall prevention device with an object mounted thereon (B).

[0023] As shown in FIG. 1(A), the fall prevention device 1 is in the steady state 2 of the fall prevention device with an object that is not operating normally mounted thereon, and on the left and right bottom surfaces in the direction in which the object 4 tilts, the front surface and the side surface of the object 4 are placed so as to be in contact with the back surface of the front panel 7 (see FIG. 2(B)) of the fall prevention device 1, the vertical guide plate 5, and the horizontal guide plate 6, respectively. Note that the object 4 represents all objects that can be prevented from falling by installing the fall prevention device 1, such as furniture, office equipment, home appliances, room dividers, outdoor equipment, walls, and other stationary items.

[0024] Also, as shown in FIG. 1(B), the fall prevention device 1 mainly includes a front panel 7 (see FIG. 2(B)), a bottom panel 8 having an integral structure with the front panel 7, a support plate 9 connected to the front panel 7, and a starting plate 10 for operating the support plate 9.

[0025] As shown in FIG. 2(A), when the object 4 tilts, the fall prevention device 1 mounted on the object 4 enters the operating state 3 of the fall prevention device with the object mounted thereon, thereby preventing the object 4 from falling.

[0026] Also, as shown in Fig. 2(B), in the operating state 3 of the fall prevention device with the object attached, the vertical guide plate 5 and the horizontal guide plate 6 can prevent the object 4 from laterally shifting and detaching from the fall prevention device 1.

[0027] Also, as shown in Fig. 2(B), in the operating state 3 of the fall prevention device with the object attached, in accordance with the tilting of the object 4, it shifts from the state of the starting plate 10 (refer to Fig. 1(B)) before operation to the operating state. The support plate operating starting point 9A provided at the upper part of the support plate 9 becomes the starting point when the support plate 9 operates, and the transmission arm 11 interlocking with the starting plate 10 pushes the support plate 9 forward, causing the bottom of the support plate 9 to contact the placement surface 15 (refer to Fig. 3(B)), and by supporting the object 4, the fall of the object 4 can be prevented.

[0028] Also, as shown in Fig. 2(B), in the operating state 3 of the fall prevention device with the object attached, a support plate slip reduction part 17 with a friction generating material such as rubber attached is provided below the support plate 9 pushed forward, and it is possible to reduce the fall prevention device 1 in the operating state 3 of the fall prevention device with the object attached from slipping out due to shaking such as an earthquake. Note that the friction generating material is not limited to materials such as rubber, and various design changes are possible as long as it is a material or structure that generates friction.

[0029] Also, as shown in Fig. 2(B), the support plate slip reduction part 17 can be stored in the support plate slip reduction part storage opening 18 provided on the front panel 7 in the steady state 2 (refer to Fig. 1(B)) of the fall prevention device with the object attached. That is, as shown in Fig. 1(B), the front surface of the support plate 9 can be stored compactly.

[0030] Fig. 3 is a (A) steady state side view and (B) operating state side view for explaining the transmission auxiliary structure of the fall prevention device 1 which is an embodiment of the present invention.

[0031] As shown in FIG. 3(A), the transmission auxiliary structure is composed of a transmission arm 11, a starting plate 10, a starting shaft 13 that connects the starting plate 10 and the transmission arm 11, and a starting shaft 14 that connects the transmission arm 11 and the support plate 9. When the fall prevention device with an object mounted thereon is in the steady state 2 (see FIG. 1A), the starting plate 10 is in a horizontal state and in contact with the mounting surface 15.

[0032] Also, as shown in FIG. 3(B), when the fall prevention device with an object mounted thereon is in the operating state 3 (see FIG. 2(A)), the starting plate 10 starts to operate with the starting shaft 12 as the starting point, and the transmission arm 11 operates with the starting shaft 13 as the starting point, and the support plate 9 connected to the starting shaft 14 can be pushed forward.

[0033] As a result, the operating fall prevention device 1 can support the tilted object 4, thereby preventing the object 4 from falling. Note that the transmission auxiliary structure is not limited to the structure including the transmission arm 11, the starting shaft 13, and the starting shaft 14, and various design changes are possible as long as the structure can push the support plate 9 forward.

[0034] FIG. 4 is a side view of the steady state (A), a side view of the operating state (B), and a side view of the operating state of an operating auxiliary structure different from (B) of the fall prevention device 1 according to an embodiment of the present invention.

[0035] As shown in FIG. 4(B), the operating auxiliary structure is composed of a support plate pusher 19 provided on the front panel 7, and is an operation assisting device for quickly operating the support plate 9 with the support plate operation starting point 9A provided on the upper part of the support plate 9 as the starting point.

[0036] As shown in FIG. 4(A), when the fall prevention device with an object mounted thereon is in the steady state 2 (see FIG. 1(A)), the support plate pusher 19 is in the folded support plate pusher storage state 19A and is stored in a state of being held by the support plate 9.

[0037] Also, as shown in FIG. 4(B), when the object 4 is in a tilted state (see FIG. 2(A)), the support plate extruding body 19 can quickly extrude the support plate 9 by being released from the folded state of the support plate extruding body storage state 19A (see FIG. 4(A)).

[0038] As a result, by operating the anti-tipping device 1 at the moment when the object 4 tilts, the tipping of the object 4 can be prevented.

[0039] As shown in FIG. 4(C), a modified example of the operation assisting structure composed of a coil spring can quickly extrude the support plate 9 by the spring-type support plate extruding body 19B. Note that the operation assisting structure is not limited to the structure composed of the support plate extruding body 19 and the spring-type support plate extruding body 19B, and various design changes are possible as long as the structure can quickly extrude the support plate 9 forward.

[0040] FIG. 5 is a (A) perspective view for explaining the structure of the support plate opening position stopper 16 of the anti-tipping device 1 which is an embodiment of the present invention, and (B) a side view for explaining a structure of the support plate opening position stopper different from (A). As shown in FIG. 5, when the support plate 9 is extruded forward by the support plate extruding body 19 (see FIG. 3(B)), the activation plate 10 contacts the support plate opening position stopper 16, so that the support plate opening position stopper 16 can stop the opening of the support plate 9 at a predetermined position without the support plate 9 opening too much.

[0041] As a result, by stopping the opening of the support plate 9 extruded forward at a predetermined position and preventing the opening angle of the support plate 9 from opening too much, it becomes possible to accurately support the object 4 and prevent the object 4 from tipping over.

[0042] As a result, the opening of the support plate 9 pushed forward is stopped at a predetermined position, and by preventing the opening angle of the support plate 9 from opening too much, it becomes possible to accurately support the object 4 and prevent the object 4 from tipping over.

[0043] As shown in Fig. 5(B), a modified example of the support plate opening position stopper 16 is that the upper-end type support plate opening position stopper 16A is provided at the upper part of the fall prevention device 1. When the support plate 9 is pushed forward, the support plate 9 comes into contact with the upper-end type support plate opening position stopper 16A, so that the support plate 9 cannot open too much and the opening of the support plate 9 can be stopped at a predetermined position. Note that the structure of the support plate opening position stopper 16 is not limited to the structure in which the support plate 9 comes into contact with the support plate opening position stopper 16, and various design changes are possible as long as the opening position of the support plate 9 can be stopped at a predetermined position.

[0044] Fig. 6 is a side view of the malfunction prevention structure of the fall prevention device 1 according to an embodiment of the present invention in (A) a steady state and (B) an operating state.

[0045] As shown in Fig. 6(A), the malfunction prevention structure is composed of a malfunction prevention hook 20 and a malfunction prevention pin 21. In a steady state where it does not operate normally, the malfunction prevention hook 20 is in a state of not contacting the malfunction prevention pin 21.

[0046] Also, as shown in Fig. 6(B), when the malfunction prevention structure operates, the malfunction prevention hook 20 is in a state of contacting the malfunction prevention pin 21, and the tip of the malfunction prevention hook 20 is caught by the malfunction prevention pin 21, so that even when the fall prevention device 1 is in a tilted state, by controlling the operation of the support plate 9, it is possible to prevent the fall prevention device 1 from operating.

[0047] As a result, it is possible to prevent the fall prevention device 1 from operating when it is not necessary to operate the fall prevention device 1 due to the tilting caused by the movement of the object 4 or the like.

[0048] Fig. 7 is a perspective view for explaining the pinching structure of the fall prevention device 1 according to an embodiment of the present invention.

[0049] As shown in Fig. 7, the clamping structure is composed of a right telescopic adjustment plate 22, a left telescopic adjustment plate 23, an adjustment plate 24, and an adjustment screw 25. The right telescopic adjustment plate 22 and the left telescopic adjustment plate 23 are each connected to the anti-tipping device 1.

[0050] Also, as shown in Fig. 7, the anti-tipping device 1 equipped with the clamping structure adjusts the length with the right telescopic adjustment plate 22 and the left telescopic adjustment plate 23 according to the size of the object 4 to be placed, and presses and fixes the adjustment plate 24 with the adjustment screw 25, so that it can be installed on objects 4 of various sizes.

[0051] Moreover, the anti-tipping device 1 equipped with the clamping structure firmly clamps and installs the object 4 (see Fig. 1(A)), so that even without fixing the object 4 and the anti-tipping device 1 with screws or the like, the anti-tipping device 1 can be prevented from coming off the object 4 due to shaking such as an earthquake.

[0052] As a result, when installing the anti-tipping device 1 on the object 4, it can be installed without processing the object 4 with mounting holes or the like. Note that the structure for adjusting the length of the clamping structure is not limited to the structure composed of the right telescopic adjustment plate 22, the left telescopic adjustment plate 23, the adjustment plate 24, and the adjustment screw 25. As long as the length can be adjusted and it is an integral structure with the anti-tipping device 1, various design changes are possible.

[0053] Fig. 8 is a (A) perspective view of a steady state and (B) perspective view of an operating state for explaining the structure of the anti-tipping device 1 according to an embodiment of the present invention provided with a notification means.

[0054] As shown in Fig. 8(A), the anti-tipping device 1 provided with the notification means can notify that the object 4 is in a tilted state by means of notification for vision by a light source notification device 26 such as a lamp or notification for hearing by a sound generation device 27 such as a buzzer when the object 4 is tilted. Also, inside the anti-tipping device 1, a battery box 28 for supplying power to operate the notification means is provided.

[0055] Further, as shown in FIG. 8(B), an alarm means activation switch 29 for activating the alarm means is provided. The alarm means activation switch 29 is pressed by the support plate 9 during normal times when the fall prevention device 1 is not operating (see FIG. 8(A)), and when the fall prevention device 1 operates, in accordance with the operation of the support plate 9, the alarm means activation switch 29 is released, thereby enabling the alarm means to be activated.

[0056] As a result, it is possible to notify that the object 4 is in a tilted state and the surroundings of the object 4 are in a dangerous state.

[0057] The structure of the support plate lock of the fall prevention device according to the embodiment of the present invention will be described: (A) Perspective view in a steady state, (B) Enlarged upper perspective view in a steady state, (C) Enlarged lower perspective view in a steady state, (D) Perspective view in an operating state, (E) Enlarged upper perspective view in an operating state, (F) Enlarged lower perspective view in an operating state, (G) Structural perspective view for explaining the operating structure of the support plate lock in a steady state, (G) Structural perspective view for explaining the operating structure of the support plate lock in a steady state.

[0058] As shown in FIGS. 9(A), (B), (C), and (G), the support plate lock structure is composed of a support plate lock 30 and a support plate lock receiver 31. In a steady state when not operating normally, the lower part of the support plate lock 30 is not in contact with the placement surface 15, protrudes from below the support plate 9, and the upper part of the support plate lock 30 does not reach inside the support plate lock receiver 31.

[0059] Also, as shown in FIGS. 9(D), (E), (F), and (H), when the support plate lock structure operates, the lower part of the support plate lock 30 is in contact with the placement surface 15, protrudes from above the support plate 9, and the upper part of the support plate lock 30 reaches inside the support plate lock receiver 31.

[0060] Support plate locks 32 are attached to the upper part of the support plate lock 30, or both the upper and lower sides. By operating the support plate lock 30 only within a predetermined position, it is possible to prevent the support plate lock 30 from detaching from the support plate 9.

[0061] As a result, when the fall prevention device 1 is in an operating state, it is possible to prevent the support plate 9 from accidentally closing. Note that the support plate locking structure is not limited to a structure composed of the support plate lock 30 and the support plate lock receiver 31, and various design changes are possible as long as the support plate 9 can be fixed.

Explanation of Signs

[0062] 1 Fall prevention device 2 Steady state of the fall prevention device with the object attached 3 Operating state of the fall prevention device with the object attached 4 Object 5 Vertical guide plate 6 Horizontal guide plate 7 Front panel 8 Bottom panel 9 Support plate 9A Starting point of support plate operation 10 Starting plate 11 Transmission arm (transmission auxiliary structure) 12 Starting shaft 13 Starting shaft A (transmission auxiliary structure) 14 Starting shaft B (transmission auxiliary structure) 15 Placing surface 16 Support plate open position stop 16A Upper end type support plate open position stop 17 Support plate sliding property reduction part 18 Support plate sliding property reduction part storage port 19 Support plate extruding body (operation assisting structure) 19A Support plate extruding body storage state (operation assisting structure) 19B Spring type support plate extruding body (operation assisting structure) 20 Maloperation prevention hook (maloperation prevention structure) 21 Maloperation prevention pin (maloperation prevention structure) 22 Telescopic adjustment plate right (clamping structure) 23 Telescopic adjustment plate left (clamping structure) 24 Adjustment plate (clamping structure) 25 Adjustment screw (clamping structure) 26 Light source notification device (notification means) 27 Voice notification device (notification means) 28 Battery box 29 Notification means operation switch (notification means) 30 Support plate lock 31 Support plate lock receiver 32 Support plate lock stop

Claims

1. A fall prevention device for preventing an object from falling, comprising a front panel provided on the bottom surface of the object and in contact with the front surface of the object, a bottom panel on which the object is placed, a support plate for preventing the object from falling, and a starting plate for operating the support plate. When the object tilts, the fall prevention device tilts in the same direction as the object. Starting from the support plate operation starting point provided on the support plate, after the support plate protrudes in the tilting direction of the object, the support plate lock fixes the support plate in the previous stage, and the bottom of the support plate touches the placement surface, thereby preventing the object from falling. A fall prevention device characterized by this.

2. The fall prevention device according to claim 1, characterized by comprising a transmission auxiliary structure capable of transmitting the movement of the starting plate to the support plate.

3. The fall prevention device according to claim 1, characterized by comprising an operation auxiliary structure capable of operating the support plate.

4. The fall prevention device according to claim 1, 2 or 3, characterized by comprising a support plate opening position stop capable of stopping the opening of the operated support plate at a predetermined position.

5. The fall prevention device according to claim 1, 2 or 3, characterized by comprising a malfunction prevention structure for preventing malfunction during the movement of the object.

6. The fall prevention device according to claim 1, 2 or 3, characterized by comprising a notification means for notifying the tilting of the object.

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