Anti-upside-down appliance

Abstract

The structure is simple, installation is easy, the installation state of the installed component is stable, and the anti-reversing performance of the installed component can be improved. An anti-upside-down tool (1) is provided with: a rod-shaped member; the claw component (3) is provided with at least two groups of claw parts (7) which are mounted on the rod-shaped component (2) in a manner of relatively moving along the length direction, and two claw parts (7) form one group; and a stopper member (4) that restricts a claw (7), which is movably attached to the rod-like member (2), in the longitudinal direction with respect to the rod-like member (2).

Description

Technical Field

[0001] The present disclosure relates to an anti-inversion device. Background Art

[0002] Conventionally, as an anti-falling device for H-shaped steel, for example, the following structure is well known.

[0003] The anti-inversion device described in Patent Document 1 is arranged in parallel by making the upper surface of the upper flange of the H-shaped steel contact the lower surface of the upper flange of other H-shaped steels, and is clamped and integrated by the first abutment part and the second abutment part installed on the rod-shaped body, thereby preventing multiple H-shaped steels from being inverted.

[0004] The anti-inversion device described in Patent Document 2 uses clamps rotatably mounted on both ends of a sleeve-shaped pipe whose length can be adjusted, and connects multiple H-shaped steels to each other for integration even when there is a height difference, thereby preventing the multiple H-shaped steels from inverting.

[0005] However, the former inversion prevention device must arrange a plurality of H-shaped steels in a state where the upper and lower surfaces of the flanges are in contact with each other. Therefore, the preparation of the preceding steps for preventing the inversion of the H-shaped steels using the inversion prevention device is complicated.

[0006] On the other hand, the latter anti-reversal device must adjust the length of the sleeve-shaped pipe and grasp the flange of the H-shaped steel with a clamp, so the adjustment operation is cumbersome. In addition, if the number of H-shaped steels increases, the number of anti-reversal devices that must be prepared also increases accordingly.

[0007] Patent Document 1: Japanese Patent No. 3868478

[0008] Patent Document 2: Japanese Patent Publication No. 2003-90131 Summary of the invention

[0009] The object of the present disclosure is to provide an anti-reversal device which has a simple structure, is easy to install, has a stable installation state on a mounted component, and can improve the anti-reversal property of the mounted component.

[0010] As a solution to the above-mentioned problem, the present invention provides the following anti-inversion device, which comprises: a rod-shaped component; a claw component, the claw component having at least two groups of claws, each of which is mounted on the rod-shaped component so as to be relatively movably along the length direction of the rod-shaped component, and the claw component is mounted on the rod-shaped component so as to be relatively movably along the length direction of the rod-shaped component; and a limiting component for limiting the claws movably mounted on the rod-shaped component in the length direction relative to the rod-shaped component.

[0011] According to the above structure, a plurality of mounted components can be easily connected by moving the claws along the rod-shaped component, clamping the mounted component with a set of claws, and limiting the position of the moved claws with the limiting component. It is also a simple structure in which a plurality of claws are movably mounted on a single rod-shaped component and the claws are limited by the limiting component. In addition, a pair of claws can clamp a mounted component from both sides. Therefore, the mounting state can be stabilized and the anti-inversion property of the mounted component can be improved.

[0012] Preferably, the claw portion includes a cylindrical portion, and the cylindrical portion is slidably disposed on the rod-shaped member.

[0013] According to the above configuration, the structure is simple, and not only the claw portion alone but also the claw portion as a whole has excellent rigidity.

[0014] Preferably, the rod-shaped member has an external thread portion on its outer periphery, and the stopper member has an internal thread portion meshing with the external thread portion.

[0015] According to the above structure, the position of the limiting component relative to the rod-shaped component in the length direction can be changed by simply rotating the limiting component relative to the rod-shaped component to change the meshing position of the internal thread portion relative to the external thread portion.

[0016] The rod-shaped member preferably includes a flat surface extending in a longitudinal direction and placed on the mounted member.

[0017] According to the above configuration, the arrangement state of the rod-shaped member with respect to the mounted member can be stabilized, so that the user does not need to perform additional work such as positioning the rod-shaped member, and workability can be improved.

[0018] It is preferable that the internal thread portion includes a handle portion capable of gripping the internal thread portion so as to perform a rotation operation of the internal thread portion.

[0019] According to the above structure, the user can easily rotate the stopper by grasping the gripping portion. In addition, after the user grasps the gripping portion and applies force in the rotation direction, the stopper can continue to rotate by utilizing the inertial force. Therefore, the stopper can be easily moved.

[0020] Preferably, the handle portion is slidably mounted to the internal thread portion.

[0021] According to the above configuration, when operating the grip portion, the grip portion can be moved to a position where it is easy to hold and operate.

[0022] It is preferable that the claw portion includes an inclined surface along the shape of a flange portion of the H-shaped steel.

[0023] According to the above configuration, the mounting state of the claw portion to the mounted component can be stabilized, and the coupled state between the mounted components can be strengthened.

[0024] Preferably, the claw portion is attached to the attached member so as to be rotatable around a support shaft extending vertically downward.

[0025] According to the above structure, even if the positional relationship of the plurality of mounted components is not parallel and is slightly inclined, the components can be reliably gripped by rotating the claws. Therefore, it does not take time to arrange the mounted components, and workability can be improved.

[0026] In addition, as a solution for solving the above-mentioned problem, the present disclosure provides the following anti-inversion device, which comprises: a rod-shaped component; a first claw component, having a first claw portion fixed to the rod-shaped component and a second claw portion movably installed along the length direction of the rod-shaped component relative to the first claw portion; a second claw component, which is movably installed along the length direction of the rod-shaped component relative to the first claw component, and the second claw component has at least one group of two second claw portions, and the two second claw portions are relatively movably installed along the length direction of the rod-shaped component; and a limiting component, which limits the second claw portion of the first claw component and the second claw portion of the second claw component in the length direction relative to the rod-shaped component.

[0027] According to the present disclosure, a simple structure can be formed in which only the claw part and the stopper part are installed on the rod-shaped part. By clamping one installed part with a set of claws and connecting multiple installed parts with multiple sets of claws, the installation state can be stabilized. Therefore, the anti-inversion property of the installed part can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a perspective view showing a part of the inversion preventing device according to the present embodiment.

[0029] Figure 2 yes Figure 1 A front view of the anti-inversion device is shown.

[0030] Figure 3 yes Figure 2 AA line section view.

[0031] Figure 4 yes Figure 1 A three-dimensional view of the first claw portion.

[0032] Figure 5 yes Figure 1 A three-dimensional view of the second claw portion.

[0033] Figure 6 Yes means Figure 1 A perspective view of an example of the anti-inversion device in use.

[0034] Figure 7 It is a side view showing a gripping portion shown in another embodiment.

[0035] Figure 8 It is a front view showing a claw portion according to another embodiment.

[0036] Fig. 9 It is a side view showing a stopper member according to another embodiment. DETAILED DESCRIPTION

[0037] <Implementation Method>

[0038] Hereinafter, the embodiments of the present disclosure will be described with reference to the accompanying drawings. In addition, in the following description, terms indicating specific directions and specific positions (for example, terms including "upper", "lower", "side", and "end") are used as needed, but the use of these terms is to facilitate the understanding of the invention with reference to the accompanying drawings, and the technical scope of the present disclosure is not limited by the meaning of these terms. In addition, the following description is essentially just an example and is not intended to limit the present disclosure, its applications, or its uses. Furthermore, the accompanying drawings are schematic diagrams, and the ratios of various dimensions, etc. are sometimes different from the actual ratios.

[0039] (Anti-inversion device 1)

[0040] Figure 1 2 is a perspective view of the anti-inversion device 1 according to the present embodiment. Figure 2 : is a front view of the anti-inversion device 1. The anti-inversion device 1 includes a rod-shaped component 2, a claw component 3 and a limiting component 4. As the material of the anti-inversion device 1 (rod-shaped component 2, claw component 3 and limiting component 4), it is preferably formed of rolled steel of conventional structure (SS400, etc.). However, various other materials can also be used in the case where the installed parts are integrated and have effective strength for preventing inversion. Furthermore, the material of the anti-inversion device 1 (rod-shaped component 2, claw component 3 and limiting component 4) is not particularly limited, and examples thereof include metal, synthetic resin, fiberglass reinforced plastic (FRP), carbon, wood, etc.

[0041] (Rod-shaped member 2)

[0042] The rod-shaped member 2 is in a rod shape. The rod-shaped member 2 is preferably circular in a cross section perpendicular to the axial direction (length direction) of the rod-shaped member. However, the shape is not limited to a circle, and the cross section perpendicular to the axial direction (length direction) of the rod-shaped member may be an ellipse, rectangle, triangle, quadrilateral, pentagon, hexagon, octagon, rhombus, parallelogram, etc.

[0043] The rod-shaped member 2 is constructed by a threaded shaft extending from one end to the other end. A pair of parallel flat surfaces 5 extending in the length direction are formed on the threaded shaft (at Figure 1 In the figure, the lower surface side is not shown, and a part of the external thread portion 6 is removed. The flat surface on one side (lower surface side) is used to be placed on the upper plane of the flange of the H-shaped steel 19 as the mounted component described later in a surface contact state. Therefore, the flat surface 5 can also be formed only on one side (on the lower surface side).

[0044] (Claw part 3)

[0045] The claw member 3 has at least two groups of claws 7, each group of two claws 7 being mounted on the rod-shaped member 2 so as to be relatively movable along the length direction. Figure 1 As shown, the claw member 3 has a plurality of claw portions 7 (in Figure 1 Two sets of claws 7 are shown in the figure. The claws 7 are configured as a group of two so as to clamp one end and the other end of the mounted component (for example, in the flange of the H-shaped steel, the right flange and the left flange extending from the end of the web of the H-shaped steel in the height direction to the two sides of the web) respectively to prevent the mounted component described later from being reversed. In addition, the multiple sets of claws 7 are configured to be movable to the position of clamping one mounted component respectively. The so-called movable includes not only sliding movement as in the present embodiment, but also the case where it can be fixed at any position in a detachable manner.

[0046] The claw 7 has a combination of two claws, a first claw 8 and a second claw 9, and a combination of two second claws 9. In this embodiment, the first claw 8 is fixed to one end of the rod-shaped member 2. The second claw 9 is slidably arranged on the external thread portion 6 of the rod-shaped member 2.

[0047] A first claw 8 is fixed to one end of the rod-shaped member 2, and a second claw 9 is arranged on the other end of the rod-shaped member 2. In the present embodiment, one first claw 8 is arranged on one end of the rod-shaped member 2, and three second claws 9 are arranged on the other end of the rod-shaped member 2. As a combination other than this, all second claws (claws that can slide) may be used.

[0048] like Figure 4As shown, the first claw portion 8 is constructed by a first fixing plate 10 and a first abutting plate 11 fixed to the first fixing plate 10. The first fixing plate 10 is in the shape of a flat plate, and is constructed by a fixing portion 10a directly fixed to one end of the rod-shaped member 2 by welding or the like, and an inclined portion 10b connected to the fixing portion 10a and extending obliquely. The inner edge 12 constructed by a first inclined edge 12a and a second inclined edge 12b is formed by the fixing portion 10a and the inclined portion 10b. The first abutting plate 11 is in the shape of a flat plate, and is formed by bending along the first inclined edge 12a and the second inclined edge 12b to form the first abutting portion 11a and the second abutting portion 11b. The first abutting portion 11a and the second abutting portion 11b are respectively fixed to the first inclined edge 12a and the second inclined edge 12b by welding or the like, and are orthogonal to the first fixing plate 10.

[0049] In this way, the first claw portion 8 is lightened by forming the first fixing plate 10 and the first contact plate 11 in a flat plate shape. The second contact portion inclined by bending the first contact plate 11 is formed to contact the lower inclined surface of the upper flange 20 of the H-shaped steel 19 as the mounted component described later. Therefore, the state of being mounted to the H-shaped steel 19 can be stabilized. Since the first fixing plate 10 is orthogonal to the first contact plate 11, it can be supported with sufficient strength in the direction in which the force acts on the first contact plate 11.

[0050] like Figure 5 As shown, the second claw 9 is composed of a cylinder 13, a second fixing plate 14 fixed to the cylinder 13, and a second abutting plate 15 fixed to the second fixing plate 14. The cylinder 13 is slidably arranged around the rod-shaped component 2, that is, arranged on the outer peripheral portion of the external threaded portion 6. The contact portion between the external threaded portion 6 of the rod-shaped component 2 and the cylinder 13 is only the most protruding portion of the thread teeth, so that the contact area between the external threaded portion 6 of the rod-shaped component 2 and the cylinder 13 is small and is not easily affected by friction resistance. Therefore, even if too much force is not applied, the second claw 9 can be smoothly moved relative to the rod-shaped component 2. In addition, since the structures of the second fixing plate 14 and the second abutting plate 15 are the same as the structures of the first fixing plate 10 and the second abutting plate 15 of the first claw 8, their description is omitted.

[0051] (Limiting component 4)

[0052] The limiting member 4 limits the position of the claw 7 movably mounted on the rod-shaped member 2 in the length direction relative to the rod-shaped member 2. The limiting member 4 is configured to limit the position of the claw 7. The limiting member 4 is provided as a separate body from the claw member 3 (claw 7). However, as described later, the limiting member 4 may also be provided integrally with the claw member 3 (claw 7). The limiting member 4 may also have a structure that limits the position of the claw 7 as a part of the claw member 3.

[0053] like Figure 3 As shown, the limiting component 4 is constructed by a barrel 16 and a holding portion 17. An internal thread portion 18 is formed on the inner circumferential surface of the barrel 16. The internal thread portion 18 meshes with the external thread portion 6 of the rod-shaped component 2. By rotating the barrel 16, the meshing position of the internal thread portion 18 and the external thread portion 6 changes, and the position of the limiting component 4 can be moved in the length direction relative to the rod-shaped component 2. The barrel 16 is in the same shape as a hexagonal bolt whose outer circumferential surface is constructed by six planes, so that the cross section of the barrel 16 is a regular hexagon. However, the shape of the barrel is not limited to a regular hexagon in cross section, and can also be an ellipse, rectangle, triangle, quadrilateral, hexagon, octagon, rhombus, parallelogram, etc. in cross section.

[0054] The grip portion 17 is composed of a portion that is welded and integrated with one flat surface of the cylindrical portion 16 and a portion that is bent at a right angle and extends from the portion and is gripped by hand.

[0055] The anti-inversion device 1 with the above-mentioned structure is used to connect multiple installed parts to achieve integration and prevent them from inverting. The installed parts are preferably H-shaped steel. Among them, as the installed parts, for example, H-shaped steel, I-shaped steel, T-shaped steel, Z-shaped steel, cross-shaped steel, mountain-shaped steel and channel-shaped steel can also be used. In this embodiment, H-shaped steel is used as an example for description.

[0056] like Figure 6 As shown, the H-shaped steel 19 is a steel material having an H-shaped cross section formed by connecting the center portions of the upper flange 20 and the lower flange 21 via a web 22 .

[0057] Hereinafter, a method of using the inversion prevention tool 1 for preventing the H-shaped steel 19 from inverting will be described.

[0058] The plurality of H-shaped steels 19 are arranged in parallel with the lower surface of the lower flange 21 placed on the ground. In addition, the positions and intervals of the claws 7 of the anti-inversion device 1 are adjusted so that the claws 7 are located on both sides of the upper flange 20 of the H-shaped steels 19 arranged in parallel.

[0059] After this preparation, the tip of the first claw 8 on one end of the rod 2 is brought into contact with the edge of the upper flange 20 of the H-shaped steel 19. Then, the flat surface 5 on one side (lower side) of the rod 2 is brought into contact with the upper surface of the upper flange 20 of the H-shaped steel 19.

[0060] Next, the second claw 9 is moved along the rod-shaped member 2, and the upper flange 20 of the H-shaped steel 19 is sandwiched between the first claw 8 and the second claw 9. Then, the gripping portion 17 is grasped to rotate the stopper 4. When the stopper 4 rotates, centrifugal force is applied by the protruding gripping portion 17. Therefore, if the gripping portion 17 is grasped to apply a rotational force, the stopper 4 will continue to rotate due to the inertial force even if the hand leaves the gripping portion 17.

[0061] In this way, if the meshing position between the external threaded portion 6 of the rod-shaped member 2 is changed, the limiting member 4 abuts against the second claw 9, the gripping portion 17 is grasped and tightened, and the second claw 9 is pressed to the edge of the upper flange 20 by the limiting member 4 for limiting. In this state, the first abutting portion 11a of the first abutting plate 11 of the first claw 8 abuts against one side edge of the upper flange 20, and the second abutting portion 11b abuts against one side lower inclined surface of the upper flange 20. In addition, the first abutting portion 15a of the second abutting plate 15 of the second claw 9 abuts against the other side edge of the upper flange 20, and the second abutting portion 15b abuts against the other side lower inclined surface. Therefore, the anti-inversion device 1 is in a state where the rod-shaped member 2, the first claw 8 and the second claw 9 abut against the upper flange 20, and is firmly attached to the upper flange 20.

[0062] In other H-shaped steels 19, the corresponding pair of second claws 9 are moved along the rod-shaped member 2, and the upper flange 20 of each H-shaped steel 19 is clamped. In this case, the stopper member 4 is rotated relative to each second claw 9 to perform the stopper. Thus, the anti-reversal device 1 is firmly attached to the upper flange 20 of the H-shaped steel 19 through the pair of second claws 9. And, by clamping the upper flange 20 of all H-shaped steels 19 with each pair of claws 7, all H-shaped steels 19 can be integrated by the anti-reversal device 1.

[0063] Thus, the anti-reversal device 1 according to the present embodiment is a simple structure in which the claw portion 7 is slidably mounted on the rod-shaped member 2 and only the internal thread portion 18 of the stopper member 4 is engaged with the external thread portion 6 of the rod-shaped member 2. As a preliminary preparation, it is only necessary to arrange the H-shaped steel 19 in parallel. Moreover, the installation operation can be easily completed by only moving the claw portion 7 along the rod-shaped member 2 and rotating the stopper member 4 for tightening. Moreover, all the H-shaped steels 19 can be fixed separately by a pair of claw portions 7 so as to be in an integrated state. Therefore, it is easy to obtain a state in which the H-shaped steel 19 has excellent anti-reversal performance.

[0064] <Other Implementation Methods>

[0065] In addition, the present disclosure is not limited to the structure described in the above embodiment, and various changes can be made. In the above embodiment, H-shaped steel 19 is described as an example of a mounted component using the anti-reversal device 1, but it is not limited to H-shaped steel 19. For example, other steel materials such as I-shaped steel, T-shaped steel, Z-shaped steel, cross-shaped steel, mountain-shaped steel, and channel-shaped steel are also the same. If the anti-reversal device 1 involved in the above embodiment is used, reversal can be effectively prevented. In addition, although the size of the steel is not specifically mentioned, various existing sizes can be coped with. The length of the rod-shaped member 2 and the size of the claw 7 can be changed according to the number and size of the steel.

[0066] In the above embodiment, the structure of the position-limiting member 4 is set as a structure in which the holding portion 17 is fixed to the cylinder portion 16. Figure 7 As shown, the gripping portion 17 may also be slidably mounted on a support piece 16a protruding from the barrel 16 along the axial direction of the gripping portion 17. If the gripping portion 17 can be positioned at two locations on the opposite sides protruding from the barrel 16, the gripping portion 17 can be moved to a position that is easy to grip, which is preferred.

[0067] Although the claw portion 7 is fixed in the above embodiment, Figure 8 As shown, the claw 7 may be configured to be rotatable about the support shaft 7a. Thus, even if the mounted components are not arranged in parallel or are slightly tilted, the mounted components can be clamped from both sides by rotating the claw 7. Thus, the workability can be further improved.

[0068] Although the limiting member 4 is set to be separate from the second claw 9 in the above embodiment, Fig. 9 As shown, the cylindrical body 13 of the second claw portion 9 can also be divided into two parts that can be opened and closed around the rotating shaft 13a, and fastened by fasteners such as bolts 13b and nuts 13c, so that the inner circumference of the cylindrical body 13 is pressed against the outer circumference of the rod-shaped component 2.

[0069] Furthermore, in another example, the position of the cylindrical body (claw) can be limited by inserting a wedge inside the cylindrical body. Positioning can also be limited by other methods.

[0070] Description of Reference Numerals

[0071] 1 Anti-inversion device

[0072] 2 Rod-shaped parts

[0073] 3-claw parts

[0074] 4 Limiting components

[0075] 5 Flat surface

[0076] 6 External thread

[0077] 7 Claws

[0078] 8 First claw

[0079] 9 Second claw

[0080] 10First fixing plate

[0081] 11 first contact plate

[0082] 12Inside edge

[0083] 13 Cylinder

[0084] 14 Second fixing plate

[0085] 15 Second contact plate

[0086] 16 barrel

[0087] 17Handling part

[0088] 18 Internal thread

[0089] 19H steel

[0090] 20 Upper flange

[0091] 21 Lower flange

[0092] 22 belly plate

Claims

1. An anti-inversion device, comprising: Rod-shaped parts; A claw member, the claw member having at least two groups of claws, each group of two claws being mounted on the rod-shaped member so as to be relatively movably mounted along the length direction of the rod-shaped member, and the claw member being mounted on the rod-shaped member so as to be relatively movably mounted along the length direction of the rod-shaped member; and The limiting member limits the position of the claw portion movably mounted on the rod-shaped member in the longitudinal direction relative to the rod-shaped member.

2. The anti-inversion device according to claim 1, wherein: The claw portion has a cylindrical portion that is slidably disposed on the rod-shaped member.

3. The anti-inversion device according to claim 1, wherein: The rod-shaped member has an external threaded portion on its outer periphery. The limiting component has an internal thread portion engaged with the external thread portion.

4. The anti-inversion device according to any one of claims 1 to 3, wherein: The rod-shaped member includes a flat surface extending in a longitudinal direction and placed on a mounted member.

5. The anti-inversion device according to claim 3, wherein: The internal thread component includes a handle portion that can hold the internal thread component so as to perform a rotation operation of the internal thread component.

6. The anti-inversion device according to claim 5, wherein: The handle portion is slidably mounted on the internal thread component.

7. The anti-inversion device according to claim 1, wherein: The claw portion includes an inclined surface along the shape of the flange portion of the H-shaped steel.

8. The anti-inversion device according to claim 1, wherein: The claw portion is attached to the attached member so as to be rotatable around a support shaft extending vertically downward.

9. An anti-inversion device, comprising: Rod-shaped parts; a first claw member having a first claw portion fixed to the rod-shaped member and a second claw portion movably mounted relative to the first claw portion along the length direction of the rod-shaped member; a second claw member, which is movably mounted relative to the first claw member along the length direction of the rod-shaped member, and the second claw member has at least one set of two second claw portions, and the two second claw portions are relatively movably mounted along the length direction of the rod-shaped member; and The limiting member limits the positions of the second claw portion of the first claw member and the second claw portion of the second claw member in the length direction relative to the rod-shaped member.

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