TW201800682A - Fall prevention device - Google Patents

Abstract

The purpose of the present invention is to improve operability when attaching or removing a fall prevention device. Provided is a fall prevention device (1), which is attached between the upper surface of a piece of furniture (F) and a ceiling (C). The fall prevention device (1) comprises: a damper (7); a first assembly (15) and a second assembly (17) which make relative approaches to and recede from one another in accordance with a telescoping of the damper (7); a pulley (19) which is attached to one of either the first assembly (15) or the second assembly (17); and a rope (21), one end of which is attached to the other of either the first assembly (15) or the second assembly (17), and which is laid across the pulley (19).

Description

Anti-fall device

The present invention relates to an anti-falling device.

Patent Document 1 discloses a conventional anti-fall device. The anti-falling device includes a damper that expands and contracts to generate a damping force, and a pair of base portions. The anti-falling device is installed between the upper surface of the furniture provided on the floor and the ceiling. The pair of base portions pivotably support the two ends of the damper respectively around the rotation axis. One base portion abuts the upper surface of the furniture, and the other base portion abuts the ceiling. Therefore, if the anti-falling device tilts forward due to shaking of an earthquake or the like, the damper rotates about the rotation axis with respect to each base portion to expand and contract, and can maintain each base portion abutting on the upper surface of the furniture and The state of the ceiling. Therefore, the anti-falling device can suppress the tilt of the furniture and prevent the furniture from falling down by the damping force of the damper.

[Prior technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2015-6330

When the anti-fall device of Patent Document 1 is installed or removed between the upper surface of the furniture and the ceiling, it is necessary to shrink the damper by human force, and according to the resistance The type of the nipple requires considerable strength, so it is expected to improve workability.

The present invention has been made in view of the facts of the foregoing knowledge, and the object thereof is to improve the workability when installing or removing the anti-falling device.

The anti-falling device of the present invention is an anti-falling device installed between an upper surface of an article and a ceiling. The anti-fall device includes: a damper that expands and contracts to exert vibration damping force; a first assembly and a second assembly that are relatively farther away or closer to each other as the damper expands and contracts; a pulley, which is One of the first assembly and the second assembly; and a rope, one end of which is mounted on the other of the first assembly and the second assembly, and is placed across the pulley.

Here, the items include furniture, bookshelves, refrigerators, showcases, server racks, beds that connect a plurality of sleeping berths in the up-down direction, large televisions, and other earthquakes. The possibility of shaking and dumping. The term "rope" refers to a long strip having flexibility, such as a rope, a cable, a belt, and a chain.

The fall prevention device of the present invention may be equipped with a winch, which is mounted on the other of the first assembly and the second assembly to take up the rope.

In the anti-falling device of the present invention, the following aspects can be adopted. The damper includes a cylinder and a rod protruding from one end of the cylinder. The first assembly includes a cylinder and a first base portion connected to the other end of the cylinder and abutting the upper surface of the article. The second assembly includes a rod, a second base portion connected to the front end of the rod and abutting the ceiling, and a rod cover attached to the rod. The pulley is attached to the first base portion, and one end of the rope is attached to the rod cover.

In the anti-falling device of the present invention, a winch can be mounted on the second The structure of the base part.

1‧‧‧anti-fall device

3‧‧‧ cylinder

5‧‧‧ par

7‧‧‧ Damper

11‧‧‧ the first base part

13‧‧‧ 2nd base section

15‧‧‧The first assembly

17‧‧‧ 2nd assembly

19‧‧‧Pulley

19A‧‧‧ flange

19A, 19B, 19C‧‧‧ pulley

21‧‧‧ Rope (rope)

23‧‧‧ Junction

23A‧‧‧through hole

23B‧‧‧face

23C‧‧‧Lower

25‧‧‧ base body

27‧‧‧Slipstop

29‧‧‧ Bolt

29A‧‧‧Head

29B‧‧‧Shaft

31‧‧‧ lever sleeve

33‧‧‧ Upper wall

35‧‧‧ Hook

37‧‧‧ Hole

39‧‧‧Receiving Department

39A‧‧‧Plug-in hole

41‧‧‧ Bushing

41A‧‧‧Concave

41B‧‧‧outer surface

41C‧‧‧Inner peripheral surface

45‧‧‧nut

49‧‧‧axis

51‧‧‧Winches

53‧‧‧ Take-up Department

55A, 55B‧‧‧ round plate

57‧‧‧rotating drum

59‧‧‧ barrel

59A‧‧‧ (of the barrel shaft)

59B‧‧‧ (of the barrel shaft)

61‧‧‧Ratchet gear

63‧‧‧Tooth

64‧‧‧rotating handle

64A‧‧‧ Engagement Department

65‧‧‧Backstop claw

65A‧‧‧Front end

113‧‧‧ 2nd base section

113A‧‧‧Outer wall section

123‧‧‧Joint

123A‧‧‧upper (front end)

123B‧‧‧

123C‧‧‧through hole

123D‧‧‧ protrusion

139‧‧‧ Undertaking Department

139A‧‧‧Plug-in hole

211‧‧‧The first base part

C‧‧‧ ceiling

F‧‧‧Furniture (items)

W‧‧‧wall

FIG. 1 is a side view showing a state where the anti-fall device of Embodiment 1 is installed between the upper surface of the furniture and the ceiling.

Fig. 2 is a front view of the anti-falling device of the first embodiment.

Fig. 3 is a partial cross-sectional view of the anti-falling device according to the first embodiment.

FIG. 4 is a side view showing a use state in which the damper of the anti-falling device of Embodiment 1 is retracted.

Fig. 5 is a side view showing a state where the anti-fall device of the second embodiment is installed between the upper surface of the furniture and the ceiling.

Fig. 6 is a side view showing a second base portion and a lever according to the second embodiment.

Fig. 7 is a partial cross-sectional view showing a second base portion and a rod according to the second embodiment.

Fig. 8 is a side view of the third embodiment.

A first embodiment of the anti-falling device of the present invention will be described with reference to the drawings.

<Embodiment 1>

As shown in FIG. 1, the anti-falling device 1 according to the first embodiment is installed between the upper surface of the furniture F and the ceiling C. The furniture F is installed on the floor surface with the back surface facing the wall surface W extending in the vertical direction from the floor surface. The furniture F has a rectangular parallelepiped shape, and includes a door, a drawer, and the like (not shown). The furniture F can store clothes, accessories, and the like inside. When the furniture F is not equipped with the anti-falling device 1, there is a possibility of shaking due to an earthquake or the like The possibility of tilting and dumping in the forward direction (right direction in FIG. 1).

As shown in FIGS. 1 to 4, the anti-falling device 1 according to the first embodiment includes a damper 7 including a cylinder 3 and a rod 5 protruding from one end of the cylinder 3; a first base portion 11; 2Base section 13. The first base portion 11 is in contact with the upper surface of the furniture F. The second base portion 13 is in contact with the ceiling C. The first assembly 15 includes a cylinder 3 and a first base portion 11. The second assembly 17 includes a lever 5 and a second base portion 13. The first assembly 15 and the second assembly 17 are expanded and contracted by the damper 7 to change the relative positional relationship. A pulley 19 is attached to the first assembly 15. One end of a rope 21 (corresponding to the rope of the present invention) is attached to the second assembly 17. The rope 21 is straddled over the pulley 19, and the other end thereof is pulled out toward the second assembly 17.

The damper 7 includes a cylinder 3, a rod guide (not shown), a piston (not shown), a rod 5, and two joint portions 23, 23 provided at both ends. The cylinder 3 has a bottomed cylindrical shape. The rod guide closes the opening of the cylinder 3. The piston train is slidably inserted into the cylinder 3. The base 5 of the rod 5 is connected to the piston. In addition, the rod 5 is inserted through the rod guide, and the front end side protrudes toward the outside of the cylinder 3. The cylinder 3 is sealed with hydraulic oil and compressed gas.

The damper 7 is a compression damper having a vibration damping force that is smaller than a vibration damping force that is generated during an elongation action. Here, the extension operation of the damper 7 refers to an operation in which the length of the protrusion of the rod 5 from the cylinder 3 (the entire length of the damper 7) gradually becomes longer. The contraction operation of the damper 7 refers to an operation in which the protruding length of the rod 5 from the cylinder 3 (the entire length of the damper 7) gradually becomes shorter. In addition, the damper 7 has the air pressure of the compressed gas enclosed in the cylinder 3 acting on the elongation direction.

The mechanism for generating the damping force of the damper 7 is a well-known structure, and therefore the illustration will be omitted. The interior of the cylinder 3 is divided by a piston into a pressure chamber on the rod side that houses the base end of the rod 5 and a pressure chamber on the opposite side of the rod. The piston is formed with an orifice as a throttle valve that communicates between the two pressure chambers. The orifice functions as a damping force generating portion that generates resistance by causing the hydraulic oil accompanying the telescopic action of the damper 7 to flow between the pressure chamber on the rod side and the pressure chamber on the opposite side of the rod. Damping force. Further, the piston has a communication path formed between the two pressure chambers via a check valve. The check valve allows the hydraulic oil to flow from the pressure chamber on the rod side toward the pressure chamber on the opposite side of the rod and prevents it from flowing in the opposite direction. Therefore, when the damper 7 is extended, the flow path of the hydraulic oil from the pressure chamber on the rod side toward the pressure chamber on the opposite side of the rod is the path of the orifice and the communication path. On the other hand, when the damper 7 is retracted, the flow path of the hydraulic oil from the pressure chamber on the opposite side of the rod to the pressure chamber on the rod side has only an orifice. Therefore, the damping force generated when the damper 7 is extended is smaller than the damping force generated when the damper 7 is retracted.

As shown in FIG. 1, the first base portion 11 is connected to a joint portion 23 connected to the bottom of the cylinder 3. As shown in FIG. 1, the second base portion 13 is connected to a joint portion 23 connected to a front end portion of the rod 5. Although the pulley 19 is attached to the first base portion 11, the first base portion 11 and the second base portion 13 have other structures in common. Therefore, only portions of the first base portion 11 that are common to the first base portion 11 and the second base portion 13 will be described.

When the plan view of the first base portion 11 is viewed from above with the abutting and placed on the upper surface of the furniture F, the base portion body 25 has a rectangular outer shape (hereinafter, the base portion body will be in this plan view). 25 The direction in which the long side of the outer shape extends is called the "long side direction", and the direction in which the short side extends is called the "short side direction"). In addition, when the side view of the first base portion 11 is viewed in a short side direction while being placed in contact with and placed on the upper surface of the furniture F, the lower end edge of the base portion body 25 faces parallel to the upper surface of the furniture F. An arc shape that extends straight and the upper edge bulges upward from both sides of the lower edge (See Figure 1) Outer shape. In addition, when the side view of the first base portion 11 is viewed in the longitudinal direction in a state of being abutted and placed on the upper surface of the furniture F, the upper edge end of the base portion body 25 is substantially shorter than the lower edge end. Trapezoidal shape (see Figure 3).

A slip prevention portion 27 is formed on a portion of the first base portion 11 that abuts the upper surface of the furniture F. The outer shape of the anti-slip portion 27 is a similar shape (rectangular shape) slightly larger than that of the first base portion 11. The anti-slip portion 27 is made of a material with a high friction coefficient and is substantially flat. The anti-slip portion 27 is configured to have a flat surface that abuts the upper surface of the furniture F.

As shown in FIGS. 2 and 3, a pair of receiving portions 39 and 39 is formed on the first base portion 11. The pair of receiving portions 39 and 39 receives a shaft portion 29B of a bolt 29 for connecting the joint portion 23. . A space is formed between the receiving portions 39 and 39 in which the joint portion 23 of the damper 7 and a bush 41 described later are fitted. The interval between the inner wall surfaces of the pair of receiving portions 39 and 39 (the length in the short-side direction of the space) is only slightly larger than the length of the bushing 41. An insertion hole 39A through which the shaft portion 29B of the bolt 29 is inserted is penetrated through the pair of receiving portions 39 and 39 in the substantially center and in the short side direction. The inner diameter of the insertion hole 39A is set to be smaller than the head 29A of the bolt 29.

The rotating shaft member is composed of a bolt 29 inserted from one of the insertion holes 39A and a nut 45 screwed into the shaft portion 29B of the bolt 29. The center axis of the bolt 29 becomes the first base. The rotating shaft of the damper 7 of the part 11.

The bushing 41 is substantially cylindrical. The bushing 41 is an elastomer. The length of the bushing 41 is only slightly smaller than the distance between the pair of receiving portions 39 and 39. The bushing 41 is formed with a recessed portion 41A around the outer peripheral surface of the central portion. The outer diameter of the recessed portion 41A is substantially equal to the inner diameter of the through-hole 23A formed in the joint portion 23 of the damper 7. The outer peripheral surface 41B of both ends of the bushing 41 is reduced in diameter in the outward direction. Therefore, the bush 41 is inserted into the through hole 23A formed in the joint portion 23 of the damper 7 while being elastically deformed. Moreover, the bushing 41 The recessed portion 41A is fitted into the through hole 23A, and is thereby attached to the joint portion 23 of the damper 7.

The inner diameter of the central portion of the bushing 41 is only slightly larger than the outer diameter of the shaft portion 29B of the bolt 29. In addition, the inner peripheral surfaces 41C of both ends of the bushing 41 are enlarged in diameter in the outward direction. Therefore, the bushing 41 can freely rotate around the shaft portion 29B of the bolt 29. The bush 41 can be inclined with respect to the shaft portion 29B of the bolt 29 in a range where the inner peripheral surface 41C of both end portions of the enlarged diameter abuts against the outer peripheral surface of the shaft portion 29B of the bolt 29. That is, the bushing 41 is attached to the damper 7 of the joint portion 23, and can freely rotate around the shaft portion 29B of the bolt 29 and swing freely in a direction crossing the rotation direction. In addition, by the elastic deformation of the bushing 41, the damper 7 can swing more in a direction crossing the rotation direction.

As shown in FIG. 3, the joint portion 23 has a flat surface 23B formed on the upper portion, and the bottom of the cylinder 3 is attached to the surface 23B. The joint portion 23 has a bushing 41 attached to a through hole 23A formed in a substantially vertical intermediate portion while bending downward from the flat surface 23B of the upper portion. The joint portion 23 is bent twice below the through hole 23A of the middle portion, and a lower portion 23C is formed in a substantially vertical shape. A pulley 19 is attached to the lower portion 23C of the joint portion 23. The length of the lower portion 23C in the vertical direction is set to be slightly larger than the diameter of the pulley 19, and a shaft 49 is provided at approximately the center of the lower portion 23C. The shaft 49 is provided substantially parallel to the shaft portion 29B of the bolt 29. A pulley 19 is rotatably mounted on the shaft 49. The pulley 19 is set to a diameter that can be accommodated in a space lower than the bolt 29 of the first base portion 11. The pulley 19 has a structure in which a groove is provided between the two flanges 19A and 19A along the outer periphery of the disc so that the rope 21 is not detached.

As shown in FIGS. 1 and 2, a cylindrical rod cover 31 is attached around the rod 5 as an accessory. With the rod cover 31, adhesion of dust and the like to the rod 5 is suppressed. The rod cover 31 prevents the rod 5 from being damaged. The upper end of the rod cover 31 is provided with a disc-shaped The upper wall portion 33 is an engaging portion 23 fixed to the front end portion of the rod 5. On the other hand, the lower end of the rod cover 31 is open. It should be noted that the rod cover 31 is a constituent element of the second assembly 17.

One end of the rope 21 is installed at a position near the lower end behind the rod cover 31. The rope 21 is straddled over the pulley 19 of the first base portion 11, and the other end is pulled out toward the second base portion 13. A substantially J-shaped hook portion 35 is attached to the other end of the rope 21.

As shown in FIG. 1, a hole portion 37 having a hook portion 35 is formed at a position closer to the lower end side in front of the lever cover 31. The hole portion 37 is sized to allow the front end of the hook portion 35 to be bent. The length of the rope 21 is set to a length necessary to compress the damper 7 to a predetermined length and to hook the hook portion 35 to the hole portion 37 as shown in FIG. 4. Choose appropriately.

Here, a method of using the anti-falling device 1 according to this embodiment will be described. As shown in FIG. 1, in a state where the damper 7 is set to a predetermined length, the first base portion 11 is in contact with the upper surface of the furniture F, and the second base portion 13 is in contact with the ceiling C. Since the anti-falling device 1 is installed at a higher position than the upper surface of the furniture F, it is difficult to perform the operation. In particular, when the anti-falling device 1 has been installed, the pressure of the compressed gas enclosed in the cylinder 3 of the damper 7 acts on the elongation direction, making it difficult to disassemble the anti-falling device 1 between the ceiling C and the furniture F. In this state, it is not easy to disassemble the anti-falling device 1 by shrinking the damper 7.

In the anti-falling device 1 of this embodiment, when the rope 21 is pulled upward from this installation state, the pulley 19 functions as a movable pulley, the damper 7 is compressed, and the second base portion 13 gradually approaches the first base portion 13 Base part 11. When the damper 7 has a predetermined length, the hook portion 35 is hooked to the hole portion 37. In this way, tolerable Easily remove the anti-falling device 1.

In the anti-falling device 1 according to this embodiment, since the pulley 19 becomes a movable pulley, the damper 7 can be shortened with less force (half the force) than in the conventional case. Therefore, the workability at the time of disassembling the anti-falling device 1 can be improved. In addition, when the damper 7 is made to have a predetermined length, the hook portion 35 is hooked to the hole portion 37 to maintain the compressed state of the damper 7. Moreover, in the anti-falling device 1 according to this embodiment, since the damper 7 can be shortened by a simple operation of pulling the rope 21, workability is high.

When the anti-falling device 1 is installed, the damper 7 needs to be shortened. In this case, if the rope 21 is pulled upwards, since the pulley 19 also functions as a movable pulley, the damper 7 is compressed, and the second base portion 13 is gradually brought closer to the first base portion 11, so it can be used for comparison. It is known that less force (half force) shortens the damper 7 and improves workability. When the anti-falling device 1 is installed, the hook portion 35 is hooked to the hole portion 37, and the damper 7 is maintained in a compressed state and carried to the upper surface of the furniture F. Here, since the hook portion 35 is only required to be lifted from the hole portion 37 can be disassembled and the damper 7 can be extended, so that work can be performed smoothly.

Furthermore, in the first embodiment, one end of the rope 21 is attached to the rod cover 31, and a hole portion 37 for hooking the hook portion 35 is formed in the rod cover 31. Therefore, the rod cover 31 is used as a rod rather than 5 is used as a protective member, and the sleeve 31 can be used more effectively.

In the anti-falling device 1 according to this embodiment, the pulley 19 is built in the first base portion 11, so the appearance is relatively clean.

Here, the functions and effects of the first embodiment will be described in correspondence with the constitution of the scope of patent application. The anti-falling device 1 is an anti-falling device installed between the upper surface of the furniture F and the ceiling C. The anti-falling device 1 is provided with: a damper 7; The first assembly 15 and the second assembly 17 are relatively far away or approached with the expansion and contraction of the damper 7; the pulley 19 is mounted on one of the first assembly 15 and the second assembly 17 And the rope 21, one end of which is attached to the other of the first assembly 15 and the second assembly 17 and is straddled on the pulley 19.

As mentioned above, since the pulley 19 becomes a movable pulley, as described above, by pulling the rope 21, the damper 7 can be shortened with less force than in the conventional case. Therefore, workability at the time of mounting or dismounting of the anti-falling device 1 can be improved.

In the anti-falling device according to the first embodiment, the following aspects are adopted. That is, the damper 7 includes a cylinder 3 and a rod 5 protruding from one end side of the cylinder 3. The first assembly 15 includes a cylinder 3 and a first base portion 11 connected to the other end of the cylinder 3 and abutting the upper surface of the furniture F. The second assembly 17 includes a rod 5, a second base portion 13 connected to the front end of the rod 5 and abutting the ceiling C, and a rod cover 31 attached to the rod 5. The pulley 19 is attached to the first base portion 11, and one end of the rope 21 is attached to the rod cover 31. In this aspect, in addition to the conventional function, the rod cover 31 is also provided with a function as a mounting portion of the rope 21, whereby the rod cover 31 can be used more effectively.

<Embodiment 2>

Next, the anti-falling device according to the second embodiment will be described with reference to FIGS. 5 to 7. Furthermore, in the anti-falling device according to the second embodiment, the same components as those of the anti-falling device according to the first embodiment described above are denoted by the same reference numerals, and descriptions of their structures, functions, and effects are omitted. The second embodiment is different from the first embodiment in the following points. That is, in the anti-falling device according to the second embodiment, a winch 51 for winding a rope 21 suspended on a pulley 19 is incorporated in the second base portion 113.

A pair of receiving portions 139 and 139 are formed in the second base portion 113. The receiving portions 139 and 139 receive the shaft portion 29B of the bolt 29 for connecting the joint portion 123. The receiving portions 139 and 139 form a space in which the joint portion 123 of the damper 7 and the bushing 41 are inserted. In addition, an insertion hole 139A through which the shaft portion 29B of the bolt 29 is inserted is penetrated through the pair of receiving portions 139 and 139 in the substantially center and in the short side direction. The inner diameter of the insertion hole 139A is set to be smaller than the head 29A of the bolt 29.

The rotating shaft member is composed of a bolt 29 inserted into one of the insertion holes 139A and a nut 45 screwed into the shaft portion 29B of the bolt 29. The center axis of the bolt 29 becomes the second base portion 113. The rotating shaft of the damper 7.

The upper portion 123A of the joint portion 123 enters the second base portion 113. A winch 51 is attached to the upper portion 123A. The joint portion 123 has a flat surface 123B formed at the lower portion, and the front end portion of the rod 5 is attached to the surface 123B. The joint portion 123 is curved upward from the lower flat surface 123B, and a bushing 41 is attached to a through hole 123C formed in a substantially vertical intermediate portion. A shaft portion of the bolt 29 is inserted into the bushing 41 29B.

The joint portion 123 is bent twice more than the through hole 123C of the middle portion, and a front end portion 123A is formed in a substantially vertical shape. A winch 51 is attached to the front end portion 123A of the joint portion 123.

The winch 51 is provided with a drum 57 having two circular plates 55A and 55B on both sides of a cylindrical winding portion 53 which is slightly bulged on both sides. A drum shaft 59 is fixed to the center of the rotating drum 57, and one end 59A of the drum shaft 59 is rotatably mounted on the upper portion 123A of the joint portion 123. The rotating drum 57 is attached in a state where one circular plate 55A faces the upper portion 123A of the joint portion 123. A ratchet gear 61 is fixed to the barrel shaft 59 on the outer side of the other circular plate 55B. The anti-claw 65 engaged with the tooth portion 63 of the ratchet gear 61 is swingably attached to the upper portion 123A of the self-engaging portion 123 A protruding portion 123D protruding sideways. The other end 59B of the cylindrical shaft 59 has a rectangular column shape, and projects to the outer wall portion 113A of the second base portion 113 to be exposed to the outside. A rotating handle 64 having an engaging portion 64A which can be engaged with the other end 59B of a quadrangular column shape is detachably mounted on the other end 59B of the barrel shaft 59.

The backstop claw 65 applies potential energy to the ratchet gear 61 by the front end portion 65A by a spring (not shown), and the cooperating operation of the tooth portion 63 of the ratchet gear 61 and the backstop claw 65 causes the barrel shaft 59 to be in a normal state. It can only rotate in one direction. Therefore, even when the operator's hand leaves the rotary handle 64, the reverse rotation claw 65 engaged with the ratchet gear 61 can prevent the drum 57 from rotating in the reverse direction, and the coiled rope 21 can be prevented from being rolled. In this case, the damper 7 is extended in the middle. When the damper 7 is restored from its contracted state, the front end 65A of the backstop claw 65 is removed from the ratchet gear 61, and the damper 7 is restored to its original length.

Here, the function and effect of the second embodiment will be described in association with the constitution of the scope of patent application. The anti-falling device according to the second embodiment includes a winch 51 which is attached to the other of the first assembly 15 and the second assembly 17 (the second assembly 17) and winds the rope 21. By winding the rope 21 with the winch 51, the damper 7 can be shortened more easily, and workability can be improved. In the fall prevention device according to the second embodiment, the winch 51 is attached to the second base portion 13. If the winch 51 is mounted on the first base portion 11 having the pulley 19, the first base portion 11 has a complicated configuration in consideration of such arrangement and the like, in order to ensure the installation space of the pulley 19 and the winch 51. As in the second embodiment, a simple structure can be adopted by attaching the winch 51 to the second base portion 13 without the pulley 19.

<Embodiment 3>

Next, a fall prevention device according to a third embodiment will be described with reference to FIG. 8. Furthermore, in the anti-falling device according to the third embodiment, the same components as those of the anti-falling device according to the first embodiment described above are denoted by the same reference numerals, and the description of the structure, function, and effect is omitted. The third embodiment differs from the first embodiment in the following content. That is, in the anti-falling device according to the third embodiment, the pulleys in the first base portion 211 are set as a plurality of small pulleys 19A, 19B, and 19C, which is different from the first embodiment. That is, in the third embodiment, the plurality of pulleys 19A, 19B, and 19C are assembled to function as one movable pulley, and the force required for compressing the damper 7 can be halved. Therefore, it is possible to shorten the damper 7 compared to the conventional case (half of the force), thereby improving workability.

<Other embodiments>

The present invention is not limited to those described in the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

(1) In the aforementioned first to third embodiments, although the anti-falling device is mounted on the furniture F, it may also be mounted on an article such as a bookshelf, a refrigerator, or the like that may fall down due to an earthquake or the like.

(2) In the first to third embodiments described above, the pulleys 19, 19A, 19B, and 19C are attached to the first assembly 15, but the pulleys may be provided to the second assembly 17.

(3) In the foregoing first to third embodiments, although the state where one end of the rope 21 is attached to the rod cover 31 has been shown, one end of the rope 21 may be attached to the constituent member of the second assembly 17, It may be attached to the second base portion 13.

(4) In the aforementioned first to third embodiments, although the rod sleeve 31 is shown attached to the rod 5 It is like this, but it is also possible without the rod sleeve 31. In this case, one end of the rope 21 is attached to the second base portion 13.

(5) In the aforementioned embodiment, the compression damper 7 has been used, but as long as it exhibits a predetermined damping force during the contraction operation, it may be a dual-use compression damper.

(6) In the aforementioned first to third embodiments, although the damper 7 in which the hydraulic oil and the compressed gas are sealed in the cylinder 3 has been used, as long as it generates a predetermined damping force during the contraction operation, it may be Hydraulic dampers sealed with other liquids can also be other types of dampers.

(7) In the aforementioned first to third embodiments, although the compressed gas is enclosed in the cylinder 3 so that the expansion force of the compressed gas acts on the stretching direction, the force acting in the stretching direction may be generated in other ways.

(8) In the foregoing first to third embodiments, although the rope 21 has been described as an example of the rope, the rope is not limited to the rope, as long as it is a flexible material such as a cable, a belt, or a chain Those with long bars are fine.

(9) In the second embodiment described above, although the winch 51 is manually operated, it may be driven by power.

(10) In the aforementioned first to third embodiments, although the cylinder 3 is sealed with hydraulic oil and compressed gas, the coil spring may be accommodated instead of the compressed gas.

1‧‧‧anti-fall device

3‧‧‧ cylinder

5‧‧‧ par

7‧‧‧ Damper

11‧‧‧ the first base part

13‧‧‧ 2nd base section

15‧‧‧The first assembly

17‧‧‧ 2nd assembly

19‧‧‧Pulley

21‧‧‧ Rope (rope)

23‧‧‧ Junction

25‧‧‧ base body

27‧‧‧Slipstop

29‧‧‧ Bolt

31‧‧‧ lever sleeve

33‧‧‧ Upper wall

35‧‧‧ Hook

37‧‧‧ Hole

49‧‧‧axis

C‧‧‧ ceiling

F‧‧‧Furniture (items)

W‧‧‧wall

Claims (4)

An anti-falling device is installed between an upper surface of an article and a ceiling; characterized in that it includes: a damper that expands and contracts to exert vibration damping force; a first assembly and a second assembly, and the like It is relatively far away or approached as the damper expands and contracted; a pulley is mounted on one of the first assembly and the second assembly; and a rope is mounted on one end of the first assembly. The other one of the second component and the above-mentioned second assembly is placed on the pulley. For example, the anti-falling device of claim 1 includes a winch which is mounted on the other of the first assembly and the second assembly to take up the rope. The anti-falling device according to claim 2, wherein the damper includes a cylinder and a rod protruding from one end side of the cylinder, and the first assembly includes the cylinder and is connected to the other end of the cylinder to abut against The first base portion on the upper surface of the article, the second assembly includes the rod, a second base portion connected to the front end of the rod to abut the ceiling, and a rod cover attached to the rod. The pulley is mounted on the first base portion, and one end of the rope is mounted on the rod cover. The fall prevention device according to claim 3, wherein the winch is mounted on the second base portion.