JP3044569U - Lifting bracket - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a lifting metal fitting for safely lifting and transporting sheet piles or the like that are stacked in multiple stages. SOLUTION: A hook portion 3 is provided at an upper end portion of a rod having a required length, and a crank-shaped hooking portion 6 bent in two steps is provided at a lower end portion, and the hooking portions 6 are stacked in multiple stages. The sheet pile unit 7a is inserted into a bolt hole 9 penetrating the side wall of the sheet pile unit 7a so as to be vertically erected, and in this state, the loop portion 12 at the tip of the wire 11 is hooked on the hook portion 3 at the upper end to form the multistage. The stacked sheet piles 7 can be safely lifted.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a lifting metal fitting used when a pile of sheet piles or the like stacked in multiple stages is lifted by a wire hook for transportation.

[0002]

[Prior art]

 Conventionally, for example, when excavating the ground at a power transmission construction site, many metal sheet piles are bolted together to prevent soil from collapsing.At this time, multiple sheet piles are stacked in multiple stages. It is hung up and transported by the wire. More specifically, straight metal rods are inserted and fixed in the bolt holes penetrating the left and right vertical side walls of the sheet pile, and the annular portion of the wire tip is fitted to the portion protruding outward from the bolt holes. . Then, a hook at the lower end of the wire of the crane is hooked on the wire to be lifted.

[0003]

[Problems to be solved by the device]

 However, since the above-mentioned sheet pile is usually formed by bending an iron plate, the stability of the metal rod is poor, so it is necessary to carefully and firmly fix the metal rod so that it will not come out of the bolt hole. Therefore, it was a factor that it took a long time to install the work and delayed the work. Also, while the piles stacked in multiple stages are being hoisted and transported, the metal rod inserted into the bolt holes may become loose and tilt, and the annular portion of the wire tip may come off the metal rods, causing the piles to drop accidentally. There was a problem that an accident would occur. Therefore, an object of the present invention is to provide a hoisting metal fitting that can easily and firmly hang up a bolt hole without requiring time, and can hoist and safely transport sheet piles stacked in multiple stages. To do.

[0004]

[Means for Solving the Problems]

 In order to achieve such an object, the lifting metal fitting according to the present invention is a lifting metal fitting that is used when lifting and transporting a sheet pile or the like that prevents collapse of earth and sand by hanging a wire, and has a required length. The vertical rod has a hook portion at its upper end portion and a lower end portion integrally provided with a crank-shaped hooking portion bent in two steps. Then, the bolts at the lower end of the lifting metal fittings are respectively inserted into the bolt holes penetrating the right and left vertical side walls of the stacked sheet piles, and the upper end of each lifting metal fitting is hooked. Hook the loops at both ends of the wire. In this state, the wire is hooked by the hook at the lower end of the wire of the crane and lifted to move the sheet pile.

[0005]

[Embodiment of the invention]

 At this time, since the hooking portion bends inside the bolt hole and acts as a stopper, it does not slip out of the bolt hole even if the lifting metal fitting is pulled up, and the sheet pile can be transported safely.

An embodiment of a lifting metal fitting according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a lifting metal fitting. The lifting metal fitting 1 is made of a metal rod which is a rod having a required length and a diameter slightly smaller than a bolt hole 9 of a sheet pile 7 which will be described later, and has an arc shape whose lower end is opened at the upper end portion of the linear portion 2. A curved hooking portion 3 is provided. Further, a stopper piece 4 is rotatably supported by a pin 5 at the tip of the hook portion 3 via a pin 5. The stopper piece 4 is positioned so as to always close the lower portion of the hook portion 3 by the biasing force of a built-in spring.

Further, the lower end of the linear portion 2 includes a horizontal bent portion 6a bent substantially horizontally and a vertical bent portion 6b bent vertically downward from the tip of the horizontal bent portion 6a. A crank-shaped hooking portion 6 that is bent in two steps is integrally provided. The horizontal bent portion 6a preferably has a length such that the distance between the linear portion 2 and the vertical bent portion 6b is not too large, and the vertical bent portion 6b is also preferably not too long.

Next, an example of use of the lifting metal fitting 1 of the present invention thus formed will be described. In FIGS. 2 and 3, reference numeral 7 is a sheet pile for preventing the collapse of the earth and sand when excavating the ground at the power transmission construction site, and is divided and formed into sheet pile units 7a of an appropriate size. Each of the divided sheet pile units 7a is formed by bending an iron plate, and a plurality of bolt holes 9 for connecting with bolts and nuts are formed through the left and right side walls, that is, the joint end walls 8 and 8. Therefore, the sheet pile units 7a, 7a ... Divided and formed in this way are collectively bound together by the tightening bands 10 and 10 in a state where they are appropriately stacked as shown in FIG.

Then, the bolt holes 9 and 9 located diagonally to each other on the right and left vertical side surfaces of the sheet pile unit 7a at the bottom of the sheet pile units 7a, 7a ... As shown in the drawings, the tip of the hooking portion 6 of the lifting metal fitting 1 is inserted into the bolt holes 9 from the horizontal direction, and the entire lifting metal fitting 1 is erected vertically while the horizontal bending portion 6a is inserted. Let Next, the annular portions 12 formed at both ends of the wire 11 are inserted into the hook portions 3 at the upper end. In this state, a hook 14 at the lower end of the wire 13 provided on a crane (not shown) is hooked at the center of the wire 11 and lifted.

At this time, in the lifting metal fitting 1, the horizontal bent portion 6a of the hook portion 3 is inserted into the bolt hole 9 of the joint end wall 8 of the sheet pile unit 7a as shown in FIG. The vertical bent portion 6b is abutted against the inner surface of the joining end wall 8 and the straight portion 2 above the hooking portion 6 is abutted against the outer surface of the joining end wall 8 and is irremovably hooked.

Further, the annular portion 12 of the wire 11 inserted into the hooking portion 3 is not pulled out by the stopper piece 4 pivotally supported at the tip of the hooking portion 3 even if the wire 11 is loose. Thus, the lifting metal fitting 1 according to the present invention always has good workability and can be used safely.

[0012]

[Effect of the invention]

 As described above, in the lifting metal fitting according to the present invention, the hook is provided on the upper end of the vertical rod, and the crank-like hook that is bent in two steps is integrally provided on the lower end. The hooking part can be hooked in the bolt hole of the sheet pile or the like without being removed, and the mounting work is easy, so workability is good, and the hooking part does not come off from the bolt hole. It has the effect that transportation work by hoisting etc. can be performed extremely safely.

[Brief description of the drawings]

FIG. 1 is a perspective view of a lifting metal fitting according to the present invention.

FIG. 2 is a perspective view of the same use state.

FIG. 3 is an enlarged perspective view showing a main part of FIG.

FIG. 4 is a sectional view showing a main part of FIG. 3;

[Explanation of symbols]

 1 Lifting Metal Fitting 3 Hooking Part 6 Hooking Part 7 Sheet Pile 7a Sheet Pile Unit 8, 8 Side Wall (Joint End Wall) 9 Bolt Hole 11 Wire 12 Ring Part

Claims (1)

[Utility model registration claims] 1. A lifting metal fitting for use when a pile sheet pile or the like for preventing collapse of earth and sand is hung on a wire for transportation, and the wire tip is provided on an upper end portion of a vertical rod having a required length. A hooking part that can hook the annular part of the part is provided, and a crank-like hooking part that is bent in two steps and is inserted into a bolt hole penetrating the vertical side wall of the sheet pile or the like is integrally provided at the lower end part. A metal fitting for lifting that is characterized.