JPH052439B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tight frame welding device used when welding a tight frame to a beam.

[Prior Art] FIG. 4 is a perspective view of a roof plate 1 having a folded plate structure attached to a beam 2 to form a roof of a factory or the like. This roof is constructed by welding a rectangular corrugated tight frame 3 to the upper surface of a beam 2 of a roof base material made of H steel, and covering the same rectangular corrugated roof plate 1 having a folded structure on this tight frame 3. be done. Here, the tight frame 3 has a predetermined length, and is arranged on the upper surface of the beam 2 and welded so that it is continuous in the longitudinal direction of the beam 2, and screw rods 4 are respectively attached to the top side. The screw rod 4 is inserted into a mounting hole (not shown) of the roof board 1, and a tightening nut 5 is inserted.
The roof board 1 is attached by screwing the roof board 1 into the screw rod 4, and the ends of the roof board 1 are overlapped with the adjacent roof board 1 to form a roof.

When constructing such a roof, when welding the tight frame 3 to the upper surface of the beam 2, conventionally, a worker had to weld a large number of tight frames and carry a cap tire, which is an electrical cord, while walking on the beam 2 while welding the tight frame 3 to the upper surface of the beam 2. was welded to the top surface of beam 2.
And when the tight frame I owned ran out,
After receiving the tight frame, he performed similar work while walking on beam 2.

Therefore, such work not only requires a great deal of effort on the part of the worker, but also involves the risk of falling. In addition, the welding work is performed by the worker while wearing a tight frame, and there is a limit to the number of tight frames that can be carried, so there are problems in that work efficiency is poor and speed is lacking.

Conventionally, as a solution to these drawbacks,
The traveling bogie of Utility Model Application No. 56-61033 (Utility Model Application No. 57-172835) has been proposed. This traveling trolley consists of a base on which a person sits, a plurality of rolls rotatably supported on the underside of the base, and extensions extending downward from both sides of the rolls. The rolls are supported on the base via bearings so that the rolls are separated from each other at the front and back of the base and their rotational axes are parallel to each other. Each set of clamping rods is also spaced apart from each other at the front and rear of the base, and each set of clamping rods is connected to the base so that the distance between them can be freely adjusted. It travels by being placed on the shaped steel of the roof, and the clamping rods grip both sides of the shaped steel and run along the shaped steel.

[Problems to be Solved by the Invention] However, since the above-described conventional traveling cart has a plurality of rolls rotatably supported on the lower surface of the base, obstacles such as tight frames on the beam 2 may occur. If an object exists, there is a drawback that it is not possible to run on the beam 2. Therefore, tight frame welding work can only be done while backing up, and once the tight frame is installed, the vehicle cannot be driven, so cargo cannot be transported afterward.

In view of these points, it is an object of the present invention to provide a tight frame welding device that solves the above-mentioned drawbacks.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a frame on which a tight frame is mounted, and a frame whose interval can be adjusted so as to sandwich the tight frame welded to the upper surface of a beam of a roof base material. A wheel is attached to the lower end of the leg and rolls on the beam, and a bracket fixed to the frame is attached to the outer surface of the leg and is attached to the roof base material. The structure includes support rods 6 that are suspended at adjustable intervals so as to sandwich the beam.

[Function] The tight frame welding work device according to the present invention has the following features:
Can run on beams. It can also run regardless of whether a tight frame is installed on the beam. Capable of transporting large quantities of tight frames. In addition, the legs are sandwiched by a tight frame welded to the top of the beam,
Prevent falling from the beam. Further, the support rods sandwich the beam from both sides to prevent the device from falling.

[Example] Hereinafter, the present invention will be described in detail with reference to the illustrated example. FIG. 1 is a schematic perspective view of a tight frame welding work apparatus showing an embodiment of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a cross-sectional view taken along the line AA in FIG.

This device consists of frames 11, 14, legs 12, 13, wheels 15, and support rods 16.

The frame consists of an upper frame 11 constructed in a rectangular shape, and a lower frame 14 extending in the same direction as the longitudinal direction of the upper frame 11 between the legs 12 and 13. A tight frame in a free state before welding is installed inside. That is, a box (not shown) or the like is fitted into the upper frame 11, and the lower surface of the box is supported by the lower frame 14.The box is filled with a large number of tight frames to allow the mounting of the box. will be held.

The legs 12 and 13 are U-shaped, and their upper ends are attached to the lower surface of the upper frame 11 of the pedestal. Of these, the left leg 12 is fixed by welding 23 to the lower surface of the upper frame 11 as shown in FIG. 3, but the right leg 13 can be slid left and right with respect to the upper frame 11. ing. This slide mechanism employs a conventionally known means, but in this example, as shown in FIGS. 1 and 3, a long hole 24 is formed in the lower surface of the upper frame 11, and a bolt slides inside this long hole 24. The slider 21 with 21a is attached to the leg 13, and a locking tool 20, such as fixing the slider with a nut 22, is attached so that the leg 13 is fixed at an appropriate position. and,
By sliding the leg 13 on the right side, the legs 12 and 13
The distance between the left and right legs 12, 13 is adjusted.
The tight frame 3, which is welded to the upper surface of the beam 2, is sandwiched between the two, thereby preventing it from falling or falling when traveling on the beam 2. Such a leg body 12,
A wheel 15 is rotatably attached to the lower end of each of the wheels 13, and the entire device travels on the beam 2 by the rolling of the wheel 15. In this embodiment, three wheels 15 are attached to each of the front and rear ends and the middle part of each leg 12, 13, but the wheels in the middle part may be omitted.

The support rods 16 are attached to the side surfaces of the left and right legs 12 and 13 in pairs. That is, a bracket 17 is suspended from the left and right sides of the upper frame 11, a horizontal adjustment rod 18 is attached to this bracket 17 and connected to the left and right legs 12, 13, and a support rod 16 is attached to this adjustment rod 18. It is something that can be done. In this case, the adjustment rod 18 has a thread carved on its outer circumferential surface, and a handle 1 at the end of the adjustment rod 18.
By rotating 9, the support rod 16 can be adjusted to move left and right. Further, this support rod 16 is swingably attached to an adjustment rod 18. The support rods 16 are used to hold the beam 2 from both sides before starting the welding work to prevent the device from falling.

Next, the handling of this embodiment configured as above will be explained. This device is hoisted onto the beam 2 by a crane or the like before the work starts. Here, the left and right legs 12 and 13 are adjusted in advance to match the width of the tight frame 3 to be welded, and the spacing between them is adjusted until the support rods 16 sandwich the beam 2 from the left and right sides. Next, a box loaded with a large number of tight frames is lifted up by a crane, and the box is fitted into the frames 11 and 14. After the preparations have been completed as described above, the operator sits on the pedestal and pulls it with his legs, causing the entire device to move on the beam 2. Therefore, while performing this moving work, the worker takes out the tight frame from the box and welds the tight frame to the upper surface of the beam so that the tight frame is located between the legs 12 and 13, thereby making the tight frame continuous. Welding is done. Note that if there is a cross beam that is perpendicular to the beam 2, the support rod 16 will come into contact with the cross beam, but this contact will cause the support rod 16 to swing, so even if there is a cross beam, it will not interfere with the moving operation in any way. It won't happen.

Note that the present invention is not limited to the above embodiments, and various modifications are possible. For example, the support rod prevents the Tight Frame from falling before it is welded, and after the Tight Frame is welded onto the beam, the legs that hold the Tight Frame will surely prevent it from falling. May be omitted.
Further, the present device may be automatically moved on the beam by a motor or the like, and both the left and right legs may be made to slide.This sliding mechanism also uses elongated holes and sliders. Alternatively, it may be done by means such as a rack and pinion. Furthermore, the device can be used not only for transporting tight frames, but also for loading and transporting other roof components.

[Effects of the Invention] As described above, according to the present invention, the work of welding a tight frame to the upper surface of a beam can be quickly performed, and workability is improved. Also, falling from a beam,
This not only improves work safety by preventing falls, but also reduces worker effort.
Moreover, since it can run even when the tight frame is installed on the beam, it can work in either forward or backward motion, and it has the advantage of being able to transport cargo even after the tight frame is installed.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing an embodiment of the present invention;
FIG. 2 is a side view showing an embodiment of the present invention, FIG. 3 is a sectional view taken along line A--A in FIG. 2, and FIG. 4 is a perspective view of roof construction. 2... Beam, 3... Tight frame, 11, 14
... Frame, 12, 13... Legs, 15... Wheels.

Claims (1)

[Claims] 1. A pedestal on which the tight frame is mounted, legs attached to the pedestal in an adjustable interval so as to sandwich the tight frame welded to the upper surface of the beam of the roof base material, and legs attached to the lower end of the legs and placed on the beam. and a support rod that is positioned on the outer surface of the leg body from a bracket fixed to the frame body and is suspended at an adjustable interval so as to sandwich the beam of the roof base material. A tight frame welding work device characterized by: