JPS5942152B2 - Method for reversing large surface components and lifting jig for reversing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and a reversing jig for large surface components such as roofs and wall materials of housing units.

As shown in Figure 1, the large surface components of a housing unit, such as the roof 1, are assembled into units at a factory and then transported to the site by truck and installed, but transportation is prohibited under the Road Traffic Act.
It cannot be transported lying down, but it is transported vertically on the loading platform 2a of the truck 2, as shown in FIG.

At the site, in order to facilitate installation, the roof 1 was lowered from the truck 2, flipped horizontally, and laid on the ground. In many cases, the above-mentioned reversal has to be performed in the space above the truck bed, and the reversing operation is labor-intensive and dangerous.

This invention was made in order to eliminate the above-mentioned drawbacks of the conventional art, and is a large-sized surface that can automatically flip a large-sized surface component arranged upright to a desired posture in the space directly above it. The object of the present invention is to provide a method for reversing a component and a lifting jig for reversing.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In Figures 3 to 5, reference numeral 3 denotes a horizontal member made of I-beam steel, and a pair of eye plates 4゜4 are attached symmetrically to the center of the upper surface in the longitudinal direction at a predetermined distance. .

Eye plates 5, 5 are attached to the lower surface of the cross member 3 at both ends, and pulley frames 7.7 of the pulley device are suspended from the eye plates 5, 5 via shackles 6.6, respectively. It is being

The pulley frame 7.7 is supported so as to swing in a direction perpendicular to the longitudinal direction of the cross member 3.

Pulleys 71 and 71 are supported by shafts 8 on pulley frames 7 and 7, respectively.

Reference numeral 9 denotes a locking portion of the automatic locking device, and the lower half of the locking leg 10, 10ya is connected by a guide plate 11 in a U-shape.

Each lock leg 10.10 has an upper half 10a fixed to a guide plate 11, and a locking protrusion 10c that is supported by a pin 12 on the upper half 10a and protrudes inward at the end thereof. It consists of a lower end portion 10b.

One end and the other end of the spring 13 wound around the pin 12 are in contact with the outer surfaces of the upper half 10a and the lower half 10b, respectively, thereby exhibiting a snap-opening action.

Note that a leaf spring can be used as the spring 13.

The end surface A of the locking protrusion 10c is inclined in the same direction as the direction in which the lock leg 10 is inclined.

The guide plate 11 has a rope hole 11ak, and a guide tube portion 11b communicating with the rope hole 11a is erected on the upper surface thereof.

The locking part 9 of the automatic locking device connects the upper ends of frame plates 14 and 14 erected at both ends of the guide plate 11 with pins 15.
The pulley frame 70 is swingably supported by being supported by the outer surface of the front protruding portions 7a on both upper sides of the pulley frame 70.

The frame plate 14.14 extends below the pulley 71, and is supported so that the line connecting the pin 15 and the guide tube portion 11b passes through the circumferential groove 71afa:: of the pulley 71 when freely hanging down.

The frame plates 14, 14 may be swingably supported on the shaft 8.

16. 16 is a rope, from which the locking cone 17 of the automatic locking device is removed, and with this locking cone 17 on the front side of the cross member 3, the rope hole 11a of the guide plate 11 and the guide tube portion 11b are inserted. , and are hung on pulleys 7 and 7, respectively.

The lock cone 17 is constructed by splitting a cone in which a rope hole 11a is drilled into two parts and connecting them with a bolt 18.
Rope 16f2r: is locked and held between the locking protrusions iQc and 'ioc (has a smaller outer diameter on the upper surface and a larger outer diameter on the lower surface between these portions).

Next, a case will be described in which the method of reversing a large surface component according to the present invention is carried out using this reversing amount Q jig.

First, as shown in Figures 6 and 7 A, the rope 16.1
The ends of the locking cones 17 of 6 were connected to eyepoles 19 and 19 attached to the lower corners of the upright roof 1, and the other ends were attached to the upper corners of the roof 1. Connect to eye bolt 20°20.

Further, another fixing method is to connect one end of the rope 21 to the center of the upper width direction on the back side of the roof 1, and to connect the other end to a fixed part such as the track 2.

The fixed part may be not only the base but also the ground or other fixed object.

The fixed rope 21 is given a length such that tension is applied when the roof 1 is lifted up to a space large enough to turn over.

Also, the ropes 16, 16 are considerably longer than the upright height of the roof 1 (
(It is desirable.

After making the above preparations, the horizontal member 3 is lifted up using a crane or the like.

The roof 1 is lifted while maintaining the attitude shown in FIG. 7A until it reaches a height at which tension is applied to the fixed rope 21.

When the lifting height of the roof 1 reaches the height at which tension is applied to the fixed rope 21 (as shown in the opening in Figure 7), from then on, the roof 1
stops rising, and the connection point B between the fixed rope 21 and the roof 1
'A rotation moment is generated with the Y fulcrum, and the pulley 71.71
The engagement positions of the ropes 16 and 16 are respectively the locking cone 17,
17 side, the rotational moment increases.

Therefore, as shown in FIG. 7C, the opening degree of the ropes 16, 16 increases, and the roof 1 rotates clockwise in the figure, using the connection point B'Y as a fulcrum.

When the pulleys 71, 71 further move in the above direction, the locking cone 17 finally touches the end surface A of the locking protrusion 10c=10c.
K'>, the lower halves 10b and 1 of the lock legs 10 and 10, respectively.
0b and open it as shown by the chain line in Figure 4 (lock leg 10).
．． I was drawn in between 10 and 10.

When the locking cone 17 is completely retracted between the locking legs 10.10 as shown in FIG. locked in an immobile state.

Therefore, from now on, the roof 10 cannot be rotated, so lifting of the cross members 3 is stopped.

If the mounting position of the locking cone 17 is determined so that the above-mentioned locking is achieved when the roof 10 is rotated to the horizontal position shown in FIG. It is then lifted to a horizontal position and flipped over.

Note that the frame plate 14.14 may be swingably supported on the shaft 8.

Further, one end of the fixed rope 21 may be connected to the ground or other fixed object.

As described above, according to the reversing method according to the present invention, a rope is connected to the upper and lower parts of the upright large surface component via a pulley, and the upper part and other parts such as the large surface component and the mounting table are connected to each other. After connecting the above ropes with slack and then lifting the pulley, the other ropes were tensed.

The lifting force of the pulley automatically acts as a turning moment with the connection point between the other rope and the large surface component as a fulcrum, so the large surface component It can be tilted horizontally on the upper floor of the room.

Therefore, even if the site is small and there is not enough free space to invert the large surface component, it is possible to easily invert the large surface component if there is space for a table on which the large surface component is placed. Moreover, since there is no need for direct human intervention during the inversion, the large surface component can be inverted to a desired posture extremely safely.

Further, the reversing lifting jig according to the present invention has a pulley, a locking cone, and a pair of locking legs having a shape that exhibits a snap leg opening action to embrace and lock the locking cone,
The pair of locking legs were attached to a frame body swingably hanging down from the pulley device, and the locking cone was fixed at a predetermined position on a rope whose both ends were respectively connected to the large-sized surface component. When the locking cone is rotated by a predetermined angle in response to the above-mentioned rotational moment, the locking cone is drawn between the pair of locking legs and the large surface component becomes unable to rotate. It can be flipped accurately and automatically.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the roof of a housing unit, FIG. 2 is a diagram showing a method of transporting the roof, FIG. 3 is a front view of an embodiment of the reversing lifting jig according to the present invention, and FIG. 4 is a diagram showing the above-mentioned implementation. FIG. 5 is a partially enlarged cross-sectional view of the above-mentioned embodiment, and FIGS. 6 and 7 are explanatory views of an embodiment of the method for reversing a large surface component according to the present invention. Total...Horizontal material, 7...Pulley frame, 10
...Lock leg, 10a... Upper half, 1
0b...lower half, 10 c-", locking protrusion, 1
1... Guide plate, 11a... Guide hole, 13 =-=-... Spring, 14... Frame plate, 16... Rope, 17... ... Lock cone, 71 ... Pulley, 21 ... Fixed rope. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. Rope ends are connected through pulleys to one or more pairs of upper and lower parts of the surface-constituting members placed upright, and other fixed ropes with fixed ends are connected. A method for reversing a large-sized surface-constituting member, comprising connecting the free end of the rope to the upper part of the surface-constituting member with the fixed rope slackened, and then hoisting the pulley. 2. A guide plate that is attached to the lower end of the frame plate that is swingably supported by a pulley device and has a rope hole, and has a snap leg opening function, and is attached to the above-mentioned ``guide plate to form a letter shape, and has a rope hole attached to the lower end of the frame plate. A pair of lock legs each having an inward locking protrusion, which has a rope insertion hole and can be retracted between the lock legs, and whose lower surface outer diameter is between the opposite sides of the locking protrusion (such as a larger lock cone). A jig for raising a reversing amount of a large surface-constituting member, wherein the locking cone is fixed at a predetermined position on the guide plate side of a rope that is hung on the pulley through the rope hole of the guide plate.