Hanging balance

Abstract

To provide a hanging balance which is capable of handling a wider range of sizes of hanging loads than conventional ones and is particularly excellent in portability.SOLUTION: A hanging balance comprises a main member 10 supported by a hoisting machine via an upper suspension portion 11, and an extension member 20 that can be inserted into and removed from both ends of the main member 10 and has a lower suspension portion 21 for supporting a suspended load.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a hanging balance that can be used when lifting a suspended load. [Background technology]

[0002] Traditionally, at construction sites, etc., a sling balance has been used to lift heavy or long loads in a well-balanced manner. It was necessary to prepare an appropriate sling balance each time according to the size (especially the length) of the load.

[0003] Furthermore, as a conventional hoist, for example, Patent Document 1 discloses a device in which the distance between two chain hoists supporting a load is adjusted by horizontally moving the hoist using an electric motor depending on the load. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 08-192988 Summary of the Invention [Problem to be solved by the invention]

[0005] According to the guidelines of the Ministry of Health, Labor and Welfare's Labor Standards Bureau, the lifting angle should be within 90°, and in addition, when using jigs such as clamps, the lifting angle should be within 60°. In other words, if an appropriate lifting scale according to the size of the load is not used, the lifting angle will be large, putting a large load (tension) on the wire, etc., which may lead to the load falling due to breakage.

[0006] However, in order to comply with the above guidelines and carry out work safely, in conventional technology it is necessary to prepare an appropriate lifting scale according to the size of the load each time, which increases the cost of the temporary equipment, causes the trouble of transporting it, and creates problems with securing storage space.

[0007] Furthermore, the invention disclosed in the above Patent Document 1 has a rather large and complicated device configuration, and is not a hanging balance that can be easily transported to and used at a construction site, for example.

[0008] In view of the above problems, the present invention has an object to provide a hanging balance that is capable of accommodating a wider range of load sizes than conventional ones and that is particularly excellent in terms of portability. [Means for solving the problem]

[0009] The invention related to (1) is a lifting balance characterized by having a main body member having an upper hanging part and supported by a lifting machine, and an extension member that can be inserted and removed from both ends of the main body member, has a lower hanging part, and supports a load.

[0010] The invention related to (2) is the hanging balance described in (1) above, wherein the main body member has an extension member accommodating section capable of accommodating the extension member, and the main body member and / or the extension member have moving rollers along which the extension member can slide.

[0011] The invention related to (3) is the hanging balance described in (1) or (2) above, in which the main body member is provided with an extension fixing member capable of fixing the extension position of the extension member. Effect of the Invention

[0012] According to the present invention, the load can be supported by providing insertable and removable extension members at both ends of the main body of the hoist, making it possible to lift a wider range of loads than before while maintaining an appropriate hoisting angle. This makes the device particularly easy to transport and saves space during storage. [Brief description of the drawings]

[0013] [Figure 1] FIG. 2 is a cross-sectional view of a hanging balance in one embodiment of the present invention. [Diagram 2]FIG. 2 is an enlarged cross-sectional view of an extension member in an extended state in one embodiment of the present invention. [Diagram 3] FIG. 2 is a front view showing a state in which a 2 m soundproof panel is suspended in one embodiment of the present invention. [Figure 4] FIG. 2 is a front view showing a state in which a 4 m soundproof panel is suspended in one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. It should be noted that the present invention is not limited to the following embodiment.

[0015] Fig. 1 shows a cross-sectional view of a hanging balance 1 according to one embodiment of the present invention. As shown in the figure, the hanging balance has at least a main body member 10 provided with an upper hanging part 11 and supported by a lifting machine, and an extension member 20 that can be inserted and removed from both ends of the main body member 10, is provided with a lower hanging part 21, and supports a suspended load.

[0016] To explain in more detail, in the example shown in the figure, the main body member 10 has an extension member accommodating section 12 capable of accommodating the extension member 20, and is configured so that the extension member 20 can be inserted and removed from the extension member accommodating section 12.

[0017] This allows the downward hanging part 21 provided on the extension member 20 to be moved horizontally, making it possible to lift a long load at an appropriate hanging angle. The cross sections of the main body member 10 and the extension member 20 may be rectangular or circular, and are not particularly limited.

[0018] 2 is an enlarged view showing the state in which the stretching member 20 is pulled out from the stretching member storage section 12. In the illustrated embodiment, an internal moving roller 22 (moving roller) on which the stretching member 20 can slide is provided at the end of the stretching member 20.

[0019] More specifically, two internal movable rollers 22 (movable rollers), one above and one below, are provided at the end of the extension member 20, allowing the extension member 20 to slide within the extension member accommodating section 12 and be smoothly inserted and removed from the main body member 10.

[0020] It should be noted that the present invention is not limited to the illustrated embodiment, and the diameter of the internal movable roller 22 (moving roller) may be increased to provide one internal movable roller 22 (moving roller), or the rollers may be provided at the upper and lower parts of the extension member 20 instead of at the ends of the extension member 20. Of course, it is also possible to dispose a plurality of movable rollers at predetermined positions in the extension member accommodating section 12 of the main body member 10.

[0021] 2, an external moving roller 13 can be fixedly disposed below the end of the main body member 10. That is, the main body member 10 and / or the extension member 20 can be provided with a moving roller on which the extension member 20 can slide at any position that supports the extension member 20.

[0022] 2, the main body member 10 is provided with an extension fixing member 15 capable of fixing the extension position of the extension member 20. This makes it possible to adjust the extension amount of the extension member 20 from the main body member 10 and fix the main body member 10 and the extension member 20 at any position.

[0023] The extension fixing member 15 may be, for example, a bolt, but any of various known methods may be used as appropriate as long as the main body member 10 and the extension member 20 can be fixed together.

[0024] 2, a stopper 23 is provided to prevent the extension member 20 from accidentally falling out of the extension member accommodating portion 12 of the main body member 10. For example, a protrusion may be provided on the extension member 20, and the protrusion may be locked in the extension member accommodating portion 12 to prevent the extension member 20 from falling out. The stopper 23 may also be provided on the main body member 10.

[0025] 1 and 2, in this embodiment, an additional downward hanging part 14 having a plurality of downward hanging holes 141 formed therein is provided below the main body member 10. This makes it possible to support a suspended load using a plurality of wires or the like. Furthermore, even when supporting a suspended load that is shorter than the lateral dimension of the main body member 10, the additional downward hanging part 14 can be effectively used to enable safe lifting operations.

[0026] Next, Fig. 3 shows a state where a 2m soundproof panel is hoisted by the hoist balance 1 of this embodiment, and further, Fig. 4 shows a state where a 4m soundproof panel is hoisted. As shown in Fig. 3, by using the hoist balance 1 of this embodiment, it is possible to hoist a 2m soundproof panel at a hoisting angle of 8°, and even a 4m soundproof panel, which is twice as long, can be safely hoisted at a hoisting angle of 60° as shown in Fig. 4, satisfying the above-mentioned guidelines.

[0027] Although Figures 3 and 4 show an example in which a soundproof panel is suspended by the suspension balance of the present invention, the application of the present invention is not necessarily limited to soundproof panels and can be applied to various suspended loads.

[0028] Although one embodiment of the present invention has been described above, the above-described embodiment of the invention is intended to facilitate understanding of the present invention and does not limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and the present invention includes equivalents thereof. Furthermore, the components described in the claims and specification may be combined or omitted within the scope of solving at least part of the above-mentioned problems or achieving at least part of the effects. [Explanation of symbols]

[0029] 1 Hanging balance 10 Body material 11 Upper hanging part 12 Extension member storage section 13 External moving roller (moving roller) 14 Additional lower suspension 141 Lower suspension hole 15 Stretching and fixing member 20 Extension member 21 Lower hanging part 22 Internal moving roller (moving roller) 23 Stopper

Claims

1. A main body member provided with an upper suspension part and supported by a lifting machine; and an extension member that can be inserted and removed from both ends of the main body member and is provided with a lower hanging portion to support a suspended load. A hanging balance characterized by the above.

2. The main body member includes an extension member accommodating portion capable of accommodating the extension member, The body member and / or the extension member may comprise moving rollers on which the extension member may slide. The hanging balance according to claim 1.

3. The body member includes an extension fixing member capable of fixing the extension position of the extension member. The hanging balance according to claim 1 or 2.

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