JPS6351958B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hanging fixture, and more particularly to a hanging fixture that is hung on the hook of a crane and grips and lifts an article.

An object of the present invention is to provide a lifting bracket that can automatically grasp and lift an object by simply operating the crane, without requiring any sling work by a worker after it is hung on the hook of a crane. It's about getting.

According to the present invention, there is provided a central shaft made of a round bar having an eye fitting attached to a crane hook at the upper end and a flange at the lower end, and a sleeve that is slidably fitted into the central shaft and whose lower end abuts against the flange. and a plurality of brackets radially attached to the outside of the sleeve portion, the support member is rotatably fitted onto the central shaft and has its lower end abutted against the upper end of the support member, and is attached to the outer surface of the central shaft. A tubular part equipped with a set bolt that slidably fits into a carved guide groove, and a disc that is attached to the lower end of the tubular part and has a plurality of stopper protrusions arranged at predetermined intervals on the lower surface of the outer periphery depending thereon. a stopper member having a shaped flange portion, and an intermediate portion of the length thereof rotatably attached to each bracket of the support member, a lower end having a hook portion that engages with an object to be lifted, and an upper end thereof being latched to the stopper protrusion. A hanging metal fitting consisting of a plurality of claw members is obtained.

Now, an embodiment of the hanging fitting of the present invention will be described below with reference to the accompanying drawings.

Referring to FIG. 1, a hanging fitting 10 of the present invention is shown placed on top of an object W to be lifted and placed in a state immediately before grasping the object W to be lifted. The hanging fitting 10 of the present invention has an eye fitting 18 at the upper end that can be hung on a crane hook, and a horizontal flange 1 at the lower end.
It has a central shaft 1 made of a round bar with a diameter of 4.
The central shaft 1 is provided with a zigzag-shaped guide groove 12 carved on the outer periphery in the middle part of its length (8th
(see figure). A plurality of (three in the figure) brackets 4a, 4b, 4 arranged radially at equal intervals
A sleeve portion 3 with a sleeve 3 attached to the outside is slidably fitted on the outside of the central shaft 1, and is configured to move up and down relative to the central shaft 1 and come into contact with a flange 14 at the lower end of the central shaft. The sleeve portion 3 and the plurality of brackets 4a, 4b, 4c constitute a support member 2 for the claw members 9a, 9b, 9c, which will be described below. A stopper member 5 is provided with a tubular portion 6 that is loosely fitted outside the central axis 1 at the upper part of the support member 2 . The tubular portion 6 is configured not only to move up and down along the central axis 1 but also to rotate freely around the central axis 1. The tubular part 6 is provided at its lower end with a recess 23 for receiving and abutting the upper end of the sleeve part 3 of the support member 2;
It is adapted to rotate relative to the sleeve portion 3 of. The stopper member 5 further includes a disc-shaped flange 7 attached to the lower end of the tubular member 6. As shown in FIG. 3a, the disc-shaped flange 7 has three stopper protrusions 8a, 8b, and 8c arranged at equal intervals (120 degree intervals in the figure) on its periphery. There is only a lower surface of a disc-shaped flange in the middle part between two adjacent stopper projections 8a and 8b, and there is no claw member 9, which will be explained later.
This serves as a passage through which the upper ends of a, 9b, and 9c are passed in the radial direction. The stopper member 5 includes a set bolt 13 that is screwed in the diametrical direction of the tubular member 6 at the level of the upper surface of the disc-shaped flange 7, and the inner end of the set bolt 13 has a guide groove 12 ( (Fig. 8). Therefore, when the center shaft 1 moves up and down relative to the stopper member 5, the stopper member 5 rotates around the center shaft 1. Three claw members 9a, 9b, and 9c are rotatably attached to the brackets 4a, 4b, and 4c by pins 19a, 19b, and 19c, respectively, at portions adjacent to their upper ends. Each of the claw members 9a, 9b, 9c is provided with a hook portion 11a, 11b, 11c, which is hooked on the outer periphery of the object W to be lifted, respectively, at the lower end, and the upper end 15
a, 15b, 15c are adapted to engage with the inner surfaces of the stopper protrusions 8a, 8b, 8c, respectively. In the position shown in FIG. 1, each claw member 9a, 9
The upper ends 15a, 15b, 15c of b, 9c are pressed toward the central axis 1 by the inner surfaces of the stopper protrusions 8a, 8b, 8c, respectively, and the respective hook portions 1
1a, 11b, and 11c are expanded to accommodate the lifted object W therein.

In the above embodiment, three claw members 9a, 9b, 9
Although three stopper protrusions 8a, 8b, and 8c are shown, the number of claw members and stopper protrusions can be increased or decreased as appropriate depending on the shape and size of the object to be lifted.

Figure 4a shows four claw members 16a, 16b, 16 used for the rectangular object shown in Figure 7.
c, 16d, one pair of claw members 16a, 16b and another pair of claw members 16.
c and 16d are placed at mutually symmetrical positions, and two stopper protrusions 17 are provided corresponding to the two pairs of claw members.
a, 17b are provided.

FIG. 8 shows an example of a zigzag guide groove 12 carved on the outer periphery of the central shaft 1, in which the width b and depth d of the groove and the height h of the zigzag peak are 8 mm, respectively. They are 6mm and 80mm.

When used, the hanging bracket 10 is in the state shown in Figure 1.
are lowered by a crane, and the claw members 9a, 9b,
The lower surface of 9c is brought into contact with the object W to be lifted at points X1, X2, and X3, and the hanging fitting 10 is supported by the object W to be lifted in this state. When the crane hook 21 (Fig. 5a) is subsequently lowered, since the claw members 9a, 9b, 9c, the support member 2, and the stopper member 5 are supported by the object W to be lifted, only the center shaft 1 is lowered by its own weight. Descend. In such a case, the guide groove 12 of the central shaft 1 rotates the stopper member 5 via the set bolt 13 fitted therein. As a result, the stopper member 5 placed in the position shown in FIG. 3a is rotated 180 degrees and placed in the position shown in FIG. 3b. In the position of FIG. 3b, each pawl member 9
The upper ends 15a, 15b, 15c of a, 9b, 9c are separated from the stopper protrusions 8a, 8b, 8c, respectively, and placed in the gaps 20 between the stopper protrusions, and the upper ends 15a, 15b, 15c of each claw member can be freely rotated. The hook portions 11a, 11b, and 11c at the lower ends of the respective claw members can be brought closer to the object W to be lifted by protruding outward from the outer peripheral portion of the plate-like flange 7a. Therefore, when lifting the center shaft 1 by operating the crane, each claw member 9a, 9b, 9c is attached to the pin 1.
9a, 19b, and 19c, and hook the hook portions 11a, 11b, and 11c at the lower ends onto the peripheral portions of the object W to be lifted, reaching the state shown in Fig. 2, and the object W to be lifted can be continued to be lifted. can.

At this time, the load of the object W to be lifted acts directly on the central axis 1 via the support member 2, and no load from the object W to be lifted acts on the stopper member 5.

In addition, in the case of a hanging fitting used for a rectangular lifted object W shown in FIG. 7, two pairs of claw members 16a, 1
Stopper protrusions 17a, 17b press the upper ends of 6b, 16c, 16d toward the central axis 1 and hold the hook portions of the lower ends in an outwardly expanded state.
It is rotated 90 degrees from the position shown in the figure and placed in the position shown in Figure 4b. In the position shown in FIG. 4b, the stopper projection 17
a and 17b are a pair of claw members 16a and 16, respectively.
b, 16c, and 16d, each claw member swings its lower end in a direction to approach the object W to be lifted.

5a, 5b, and 5c show the process of hoisting the object W on the pedestal 22 using the device 10 of the present invention, and FIG. 5a shows each claw member 9a, as in FIG. 9b, 9c hooks 11a, 11b, 11
Fig. 5b shows a state in which the claw members 9a, 9b, 9c grip the object W to be lifted, similar to Fig. 2. FIG. 5c shows a state in which the object W to be lifted is lifted into the air from the position shown in FIG. 5b. FIG. 6 shows the upper surface of the device of the present invention gripping the object W to be lifted shown in FIG. 5b.

As described above, the device 10 of the present invention allows the center shaft 1 to be lowered by its own weight only by operating the crane by first hooking the eye fitting 18 at the upper end of the center shaft 1 onto the hook 21 of the crane. ，
After hooks 11a, 11b, 11c at the lower ends of 9b, 9c are hung around the outer periphery of the object W to be lifted and the object W to be lifted is securely gripped, it can be easily lifted. Therefore, when using the apparatus of the present invention, it is not necessary to have a worker on the ground, and a desired article can be automatically lifted by the operation of a crane operator, which is useful for saving labor. In addition, it is advantageous in terms of strength because the load of the object to be lifted is directly supported by the central axis.Moreover, the stopper member only locks or releases the swinging of the claw member, and the load from the object to be lifted is The structure can be made simple since no action is taken at all, and the claw member can be
Since it swings under its own weight, the number of parts can be reduced as a whole, and it is an advantage of the present invention that it can be manufactured at low cost.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing the device of the present invention in a state immediately before it starts operating, FIG. 2 is a cross-sectional view showing the device in FIG. 1 during operation, and FIG. 3a is a line 3a--3a in FIG.
3b is a sectional view along line 3b--3b of FIG. 2; FIG. 4a is a view similar to FIG. 3a of a modified embodiment of the apparatus of FIG. 1; FIG. Figures 5a and 5 similar to figure 3b of the variant embodiment of the figure.
Figures b and 5c are diagrams showing the process of hoisting an article using the device of the present invention, Figure 5a is a diagram similar to Figure 1, Figure 5b is a diagram similar to Figure 2, and Figure 5c. Figure 6 shows the state in which the object to be lifted is lifted.
FIG. 7 is a plan view showing a hanging fitting and an object to be lifted according to a modified embodiment of the present invention; FIG. 8 is a plan view showing a main part of the apparatus shown in FIG. 1; FIG. DESCRIPTION OF SYMBOLS 1... Central shaft, 2... Support member, 3... Sleeve member, 4a, 4b, 4c... Bracket, 5... Stopper member, 6... Tubular part, 7... Disc-shaped flange, 8a, 8b, 8c... Stopper protrusion, 9a ，
9b, 9c...claw member, 10...device of the present invention, 11
a, 11b, 11c... hook portion, 12... guide groove, 1
3...Set bolt, 14...flange, 15a,
15b, 15c...upper end of the claw member, 16a, 16
b, 16c, 16d...claw member (modified embodiment), 1
7a, 17b...stopper projection (modified embodiment),
18... Eye fitting, 19a, 19b, 19c... Rotating pin, 20... Gap between stopper protrusions, 21
... Crane hook, 22... Frame, 23... Recess.

Claims (1)

[Scope of Claims] 1. A central shaft consisting of a round bar having an eye fitting at the upper end that can be hung on the hook of a crane, a flange at the lower end, and an annular guide groove carved in the outer peripheral surface that meanders in the axial direction. a support member consisting of a sleeve portion that is slidably fitted onto the central shaft and whose lower end abuts against the flange; and a plurality of brackets that are radially attached to the outside of the sleeve portion; a tubular portion that is loosely fitted and is movable up and down and rotatable relative to the central axis, and has a lower end in contact with the upper end of the support member; a stopper member having a disc-shaped flange portion from which a plurality of stopper projections arranged at intervals are suspended; and a guide groove fixed to the stopper member and having an inner end carved on the outer surface of the central shaft. a set bolt that is slidably fitted into the support member and rotates the stopper member around the center axis as the center axis moves up and down; The part is attached to be swingable in the direction toward and away from the central axis, and has a hook part at the lower end that engages with the object to be lifted,
The upper end is engaged with the stopper protrusion to prevent the lower end from rotating in the direction of the central axis due to its own weight, and the engagement between the upper end and the stopper protrusion is released by rotation of the stopper member. A hanging metal fitting consisting of several claw members.