JPH06135677A - Horizontal suspending-up device for pca plate - Google Patents

Abstract

PURPOSE:To disperse with an insertion nut and an eyebolt and shorten the construction time at a site. CONSTITUTION:Each longitudinal cut groove 7 is formed on both the sides of a suspending plate 6 having a suspending hole 5, and a suspending-up rope 12 having the equal length on the left and right side is fixed in the suspending holes 5 of a pair of suspending tools 3 having a projectingly installed hooking plate 11 whose upper edge 9 is installed on the lower side from the upper surface 10 of a Pca plate 1, on both the sides of the groove wall 8, and connected with an equillibrium rod 13. Accordingly, an insertion nut and an eyebolt can be omitted, and the execution time can be shortened, and further, the manufacture of the Pca plate can be simplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal lifting device for Pca plates (precast concrete plates) used as foundation slabs for industrialized fabric foundations.

[0002]

2. Description of the Related Art Conventionally, in order to horizontally suspend a Pca plate, an insert nut embedded in two places on the upper surface is previously used.
The eye bolts were screwed together at the site, and the hooks of the hanging rope were hung on them.

In the conventional technique, an insert nut is embedded in the process of manufacturing a Pca plate. Further, the eye bolt is screwed in advance to the insert nut immediately before it is lifted at the site. Then hook the eyebolts. The above-mentioned steps are required, and in particular, the construction time on site is long, which is a drawback that causes an increase in cost.

[0004]

When the Pca plate is lifted up, the use of eyebolts is eliminated, thereby eliminating the need for embedding insert nuts, and further eliminating the work of screwing and removing eyebolts in the field, thus shortening the process. Reduce the construction time on site.

[0005]

In order to achieve the above-mentioned object, convex flat dents for fitting a hanging plate and a hanging plate, which constitute a hanging tool, are formed in the longitudinal direction of the Pca plate and on the center left and right sides. Provide the upper wall of this flat hollow with the upper end of the hanging plate of the hanging device connected to the hanging rope that is lowered from the crane arm, and lift it, omitting the work of embedding the insert nut on the upper surface of the Pca plate as in the past, thus using eye bolts. The work to be done is omitted, the manufacturing and working steps are shortened, and the construction time is shortened.

[0006]

EXAMPLES Examples will be described with reference to the drawings.
This device utilizes the shear strength of Pca concrete and the bending tensile strength of a metal plate (iron plate), and has a constant width, length, and thickness. In 2), a flat recess (4) having a convex side surface for fitting the suspender (3) is provided as shown in FIGS.

On the other hand, as shown in FIG. 3, vertical notches (7) are provided on both sides of the suspension plate (6) having a single or a plurality of suspension holes (5), and further suspended inside the suspension plate (6). Right angle to the plate (6) or with the tip facing downward, the lower surface of the plate (22) is set to P
Aligned with the ca plate (1) upper surface (10) or tilted recess (2
It is projected to match 3) and prevents the hanging device (3) from falling.
In this case, in order to eliminate the directionality of the support plate (22), the support plate (22) can be placed side by side with the suspension plate (6) interposed therebetween. Furthermore, on both sides of the groove wall (8),
The upper end (9) is projected from the Pca plate (1) and the hanging plate (11) provided on the left and right sides so as to support the Pca plate (1), that is, the Pca plate (1) and the upper wall surface (21) below the upper surface (10). And a lifting rope (3) is configured, and lifting ropes (12) of the same length are fixed on the left and right sides in the hanging holes (5) of the pair of hanging tools (3) described above, and further, The other end is connected to the balancing rod (13), and diagonally hanging ropes (14) are connected to both ends of the balancing rod (13).
It is configured to hang the hook of 5) and lift the Pca plate (1).

In this case, in order to prevent the hanging tool (3) from falling off the Pca plate (1), both ends are bent in the same direction (16) and a handle (18) is provided in the middle, as shown in FIG. Alternatively, as shown in FIGS. 5 and 8, one or a plurality of flat plate-like stoppers (17) are dropped from above the vertical notch (7), and the outsides of the left and right suspension plates (6) are stopped (17). , Folding (1
The clip (6) sandwiches the suspension (3) with the flat recess (4) and the wall surface (19), and the suspension (3) is attached to the Pca plate (1).
Is configured to prevent the dropout of. However, it is not always necessary to use the stopper (17) when vertically lifting with the two lifting ropes (12) on the left and right.

Further, the groove bottom (20) of the vertical notch (7) and Pc
The a-plate (1) may be flush with the upper surface (10), and the groove bottom (20) may be above or below the upper surface (10). Further, the groove bottom (20) can be freely selected whether it is circular or flat. Further, the thickness and length of the Pca plate (1) on which the hanging plate (11) is applied are determined from the concrete cross-sectional area that can resist the shear stress of the concrete that acts when lifting the Pca plate (1) and the concrete shear strength. . The upper wall surface (21) of the flat recess (4) on which the upper end (9) of the hanging plate (11) is placed may be horizontal as shown in FIGS.

Further, the hanging tool (3) is made of a metal flat plate (iron plate), and the depth of the flat recess (4) of the Pca plate (1) is such that the lifting tool (3) does not come off when lifted. It only needs to be high. Also, a flat recess (4) for fitting the hanging tool (3)
6, the suspending tool (3) may be embedded in the Pca plate (1) and the side surface (2) so that the suspending tool (3) does not vertically descend. Further, the suspending tool (3) can be made of a single metal flat plate, and the lower end of the suspending plate (6) can be overlapped and welded to the inside and outside at the center of the hanging tool (11) as shown in FIG. 7.

Next, in order to lift the Pca plate (1),
As shown in FIG. 8, a pair of hoists (3) fixed to the hoisting rope (12) are attached to the flat recess (4) of the Pca plate (1) with Pc.
a The plate (1) is fitted from the left and right, and the support plate (22) is
Place the folding (16) of the retainer (17) on the upper surface (10) of the ca plate (1) downwardly into the vertical chip groove (7),
(Two stoppers (17) may be used on the left and right.) Hoisting with a crane, in this case, the hanging plate (1) of the hanging tool (3).
In 1), the Pca plate (1) can be hoisted horizontally by the hoisting because the hoisting hole (5) for fixing the hoisting rope (12) is protruded outward to the left and right with the same length. Next, the hoisting rope (12) is lowered with a predetermined position and grounded, the hook (18) of the stopper (17) is lifted up and removed, and the hoisting tool (3) is removed outside. As described above, the present invention provides the fitting of the hanger (3),
There is an advantage that the removal time is very simple compared to the conventional one.

[0012]

Since the present invention is configured as described above, it has the following effects.

Since the insert nut is not required, screwing and removing work of the lifting eyebolt can be omitted and the construction time can be shortened.

Since it is not necessary to embed the insert nut in the Pca plate (1), the manufacture of the Pca plate (1) can be simplified.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a Pca plate and a flat recess.

FIG. 2 is a plan view of a Pca plate.

FIG. 3 is a perspective view of a suspender.

FIG. 4 is a front view of a stopper.

FIG. 5 is a cross-sectional view of a main part in which a suspending tool is bent to stop the suspending tool.

FIG. 6 is a front view of a main part showing another example of the flat depression.

FIG. 7 is a front view in which a hanging plate and a hanging plate are overlapped and fitted.

FIG. 8 is a perspective view of a Pca plate lifted up.

FIG. 9 is a cross-sectional view of a main part in which a hanging plate of a hanging tool is hung on an upper wall surface and a supporting plate is further placed on the upper surface.

[Explanation of symbols]

1 Pca board (precast concrete board) 18
Claw 2 side 19
Wall 3 Hanging equipment 20
Groove bottom 4 Flat depression 21
Upper wall 5 Hanging hole 22
Support plate 6 Hanging plate 23
Inclined hollow 7 Vertical notch 8 Groove wall 9 Upper end 10 Upper surface 11 Hanging plate 12 Lifting rope 13 Balance rod 14 Diagonal hanging rope 15 Hanging rope 16 Bending 17 Stopper

Claims (1)

[Claims] 1. A Pca plate (1) having an upper end (9) on both sides of a hanging plate (6) having a hanging hole (5), and a hanging plate (11) provided below the upper surface (10) in a protruding configuration. The lifting rope (12) is fixed to the hanging holes (5) of the pair of hanging devices (3), and the other end is connected to the balance rod (13). It features a structure in which a hanging rope (14) is connected. Horizontal lifting device for Pca board.