JPH0620784Y2 - Concrete block hanger - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a hoisting tool used for hoisting, transferring, and transporting a concrete block having a hole in the center.

(Prior Art) Conventionally, for lifting, transferring, or carrying a concrete block having a hole in the center, a wire is passed through a hole in the concrete, the wire is hung on a hook, and the crane is lifted and moved.

(Problems to be solved by the invention) In the conventional method, since the concrete block is hung by the wire hanging, the suspended state of the concrete block is unstable and dangerous, and it is difficult to control the attitude of the concrete block when landing. It was Moreover, the work efficiency was also low. An object of the present invention is to solve the above-mentioned drawbacks of the related art and to provide a lifting tool that can be stably placed in a desired posture and that has a high work efficiency.

(Means for Solving the Problems) The gist of the present invention which has solved the above problems is as follows: 1) Extend horizontally horizontally to the upper part of a substantially U-shaped hanging device main body with the tip of the lower horizontal part projecting slightly upward, A long hole that is short and tilted downward from the end is provided, and a vertical long hole is provided below the suspender body, and hook receiving shafts are slidably attached to the upper long hole and the lower long hole, respectively. The hook receiving shaft locking groove is formed at the upper side position of the left and right ends of the long hole and the tilt starting point of the horizontal end, and the hook receiving shaft locking groove is provided at the right side position of the upper and lower ends of the lower hole. 2) The concrete block suspension according to claim 1, wherein a movement prevention frame is pivotally attached to a lower horizontal portion of the suspension main body.

(Operation) In the present invention, when moving the concrete block lying down so that the hole becomes horizontal, first move the hook bearing shaft to the locking groove at the starting point of the inclination of the horizontal end of the upper long hole, and move this position. Use the hook to drop the hanger, and insert the lower horizontal part into the hole in the concrete block. In this state, the horizontal part of the hanger is kept horizontal and can be easily inserted into the hole.

Next, the hook receiving shaft is moved to the left end locking groove of the horizontal portion of the upper slot. After that, the hook is lifted to lift the concrete block in the left end locking groove, horizontally moved in a desired direction, and lowered at a target position. In this way, when inserting the lower horizontal part of the lifting device into the hole of the concrete block, hang it at the right end of the upper slot near the horizontal position of the center of gravity of the lifting device itself. Hang with the left end of the slot near the horizontal position of the center of gravity. When further inverting the concrete block, after inserting the lower horizontal portion of the suspender, the hook receiving shaft is set in the concrete skeleton by being stopped in the engaging groove at the position where the horizontal end of the slant starts. If you lift it at this position, the concrete block will be held in a slightly tilted state, move it in this state, and lower it to the concrete block at the required place again, ground the concrete block and use that ground point as a fulcrum. The concrete block falls down by its own weight, and the hook receiving shaft also slides on the inclined part of the long hole to the locking groove at the right end, and the concrete block is smoothly inverted. When the concrete block falls about the grounding point, the hook bearing shaft in the locking groove at the right end of the horizontal portion of the elongated hole above the hanger also tries to rotate around this grounding point. At this time, at the start of rotation, the hook receiving shaft moves mainly in the leftward horizontal direction, so the hook receiving shaft moves in the direction in which it separates from the hook. Because the long hole is almost horizontal due to the inclination of the hanger,
The hook receiving shaft does not rotate together with the hanger, but escapes into this slanted long hole portion, the hook receiving shaft does not move much with the hook, and the concrete block tilts. As a result, the hook receiving shaft does not easily come off from the hook and can be safely hung. When the concrete block / hanging tool is largely rotated, the hook does not move horizontally and the vertical movement is the main one, so the hook receiving shaft hardly comes off from the hook.

Next, in the case of installation work, the hook receiving shaft is moved in the locking groove above the lower elongated hole, the hanging tool is hung at this position, and the lower horizontal portion is inserted vertically into the hole of the concrete block. After that, the hook receiving shaft is moved to the lower engaging groove to lift, move, and descend to install the concrete block. In this way, concrete blocks with vertical holes are lifted, moved, and
When lowering only the hanger when lowering, bring the hook receiving shaft into the locking groove at the upper end of the lower long hole near the center of gravity of the hanger and hang it with the hook at this position. Can be moved stably. Next, when hoisting and moving the concrete block in this state, bring the hook receiving shaft into the locking groove at the lower end of the lower slot near the center of gravity of the concrete block, and hang it at this position. Can be stably lifted and moved. Further, by pivotally attaching the movement prevention frame, movement of the hanger can be prevented, and a safer one can be obtained.

(Example) Hereinafter, an example will be described with reference to the drawings.

FIG. 1 is a front view showing the present embodiment, FIG. 2 is a plan view of the same, FIG. 3 is an explanatory view showing a mounting structure of a movement prevention frame, and FIG. 4 is an explanatory view showing a shape of an upper long hole, FIG. 5 is an explanatory view showing the shape of the lower long hole, and FIGS. 6, 7 and 8 are explanatory views showing the usage state.

In the figure, (A) is a concrete block to be worked, (1) is a suspender body formed by connecting two thick steel plates, (2) is a lower horizontal part, and (3) is a protrusion of the tip of the lower horizontal part. Part, (4) is the upper slot, (5) is the lower slot, (6) is the left end locking groove of the slot (4), (7) is the inclination of the horizontal end of the slot (4). Locking groove at the starting point, (8) is the locking groove at the right end of the slot (5), (9) is the locking groove on the upper right side of the slot (5), (10) is the slot (5) Lower right side of the locking groove, (1
1) is the hook bearing shaft attached to the long hole (4), (12) is the long hole (5)
The hook receiving shaft attached to the, (13) is a movement preventing frame pivotally supported at the center of the lower horizontal portion (2) of the lifting device body (1), (14) is a pivot of the movement preventing frame, (15) Is the wire attached to the movement prevention frame,
(A) is a hole in the center of the concrete block (A),
(B) is a leg part of the concrete block (A).

In this embodiment, when the concrete block (A) is placed laterally, it may be set as shown by the solid line in FIG. 1, lifted and moved, and vertically lowered at a required place, or may be lowered. After landing, the hanger can be moved and the concrete block (A) can be tilted as shown in FIG. 7 to bring it into a normal installation state. Also, of course, the posture of the installed state is the 8th
As shown in the figure, you can lift it up and place it where you want it.

(Effect of the Invention) As described above, according to the present invention, the concrete block with holes can be relatively easily lifted in both vertical and horizontal states.
It can be moved reliably and safely, and the efficiency of moving work can be greatly enhanced.

[Brief description of drawings]

1 is a front view showing an embodiment, FIG. 2 is a plan view of the same, and FIG.
FIG. 4 is an explanatory view showing the mounting structure of the movement prevention frame, FIG. 4 is an explanatory view showing the shape of the upper long hole, FIG. 5 is an explanatory view showing the shape of the lower long hole, and FIGS. It is explanatory drawing which shows a state. (A): Concrete block (a): Hole, (b) ... Leg (1): Lifting tool body, (2): Lower horizontal part (3): Projection, (4), (5): Long hole (6), (7), (8), (9), (10): Locking groove (11), (12): Hook bearing shaft

Claims (2)

[Scope of utility model registration request] 1. A substantially U-shaped hoisting tool main body having a tip of a lower horizontal part projecting slightly upward, extending horizontally horizontally, and providing a long hole which is short and inclined downward from the horizontal end of the hoisting tool main body. A vertical long hole is provided in the lower part, and hook receiving shafts are slidably attached to the upper long hole and the lower long hole, respectively. A concrete block hanger, characterized in that a locking groove for the shaft is formed, and a locking groove for the hook receiving shaft is provided on the right side of the upper and lower ends of the lower slot. 2. The concrete block hanger according to claim 1, wherein a movement preventing frame is pivotally attached to a lower horizontal portion of the hanger body.