JPH03267471A - Nut positioning jig of housing unit - Google Patents

Abstract

PURPOSE:To enhance the construction efficiency by erecting bar members to a base member so as to correspond to bolt insertion holes to form a nut positioning jig, and using the jig to weld nuts to a beam into which mounting bolts used for a panel, etc., are screwed. CONSTITUTION:Bolt holes 9 for mounting a pile, etc., are bored in a beam 5 of which a frame work of a housing unit is constituted. Bar members 13 are erected to a base member so as to correspond to the bolt holes 9 to form a nut positioning jig 11. After that, the jig 11 is fitted to the beam 5, and nuts 10 are inserted into the bar members 13 to weld the nuts to the beam 5 to fix. Then, the jig 11 is removed, and the panel, etc., are mounted to the beam 5 with bolts. According to the constitution, work efficiency can be promoted.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a nut positioning jig for a housing unit.
It is used when welding nuts for attaching panels, etc. with bolts to the beams that make up the framework of housing units.

[Background Art] As shown in Fig. 6, in a unit house 1 using the unit construction method, housing units 2 are manufactured in a factory, and these housing units 2 are transported by truck to a construction site, where they are constructed using a crane or the like. Can be assembled. As shown in FIG. 7, the frame 3 of such a housing unit 2 is constructed by connecting an upper beam 5 and a lower beam 6 between the upper ends and lower ends of four pillars 4 at the four corners, respectively. The housing unit 2 is manufactured by attaching panels, ceiling materials, etc. (not shown) to the frame 3 at a factory.

As shown in FIGS. 8 to 10, such a housing unit 2
A plurality of bolt insertion holes 9 are formed in the upper beam 5 and the lower beam 6 for attaching exterior members such as the shutter case 7, panel 8, and sash with bolts 16 and nuts 10, and the bolt insertion holes 9 correspond to the bolt insertion holes 9. A nut 10 is welded to the back surface of the beams 5 and 6.

As shown in the figure, for example, the rain shutter case 7 is attached directly to the upper beam 5, and the panel 8 is attached via a bracket 17.

These nuts 10 are welded to the beams 5 and 6 in advance at regular intervals based on the standardized module dimensions of the housing unit so that exterior members can be arbitrarily attached to the frame 3 as needed.

In the conventional housing unit 2, such nuts 10
The welding to the beams 5 and 6 was carried out by the worker while holding the nuts 10 one by one on the back of the bolts 5 and 6 using an appropriate gripping tool, aligning them with the positions of the bolt insertion holes 9. .

[Problems to be Solved by the Invention] According to the conventional nut welding work described above, the worker positions each nut in the bolt insertion hole 9 one by one using a gripping tool. The bolt insertion hole 9 sometimes deviates from the position of the bolt insertion hole 9, making it difficult to accurately position it. In addition, performing welding work while holding a large number of nuts 10 in this manner takes time and impedes efficiency in manufacturing housing units.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a nut positioning jig for manufacturing housing units that allows accurate positioning of the nut with respect to the bolt insertion hole when welding the nut to the beam.

[Means for Solving the Problems] The present invention provides a structure in which the frame of a housing unit is constructed by connecting an upper beam and a lower beam between the upper ends and lower ends of four pillars at the four corners, respectively, and The nut positioning jig is used when welding a nut to the casing in alignment with a plurality of bolt insertion holes, and the nut is inserted into the base member from the tip thereof through the bolt insertion holes. The present invention is characterized in that a plurality of rod members are provided at intervals corresponding to the intervals between the bolt insertion holes.

Further, in this nut positioning jig, a magnet may be provided at the base of the rod member in order to prevent the nut from moving during the cutting and welding work. This magnet only needs to be able to hold the nut on the beam with magnetic force, and may be integrated with the base member or separate from it. Further, either a permanent magnet or an electromagnet may be used.

[Operation] When welding a nut to a beam, the rod member of the jig is inserted into each bolt insertion hole of the beam, and then the nut is inserted from the tip of the rod member to position the nut in each bolt insertion hole. In this state, each nut is welded.

[Example code] The present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 to 3, the housing unit nut positioning jig II according to the first embodiment has a plurality of rod members 13 on one side of a plate-shaped base member 12 at predetermined intervals by welding or the like. Installed and configured. The number of these rod members 3 and the spacing between the rod members 3 correspond to the number of bolt insertion holes 9 formed in the upper beam 5 and the spacing between the bolt insertion holes 9.

Further, the diameter of each rod member 13 is slightly smaller than the diameter of the nut 10 so that the nut 10 can be inserted therethrough.

Note that the upper beam 5 in FIG. 1 shows only the upper beam portion of the frame that constitutes the housing unit.

In manufacturing housing units, the nut positioning jig 11 is used as follows.

That is, as shown in FIGS. 1 and 2, when welding nuts 10 to the upper beam 5 of the frame, a jig 11 is inserted into the bolt insertion hole 9 formed on the side surface of the upper beam 5 for attaching a shutter case or the like. The respective rod members 13 are inserted simultaneously.

Next, the nuts 10 are inserted from the tip of the rod member 13 inserted into the bolt insertion hole 9, and each nut 10 is positioned in the bolt insertion hole 9 while making contact with the back surface of the upper beam 5.

Next, with each nut 10 supported by the rod member 13 in this manner, the nut IO is welded.

The welding operation of the nut 10 described above has been explained by taking as an example the case where it is performed on the upper beam 5, and is also performed in the same manner when welding the nut 10 to the lower beam 6 shown in FIG.

As shown in FIG. 10, FIG. 3 shows the jig 11 of this embodiment on the upper beam 5 for attaching panels etc. via brackets.
The case where the nut 10 is positioned using is shown. This upper beam 5 has bolt insertion holes 9 formed in its lower part, and the rod members 1 of the jig 11 are inserted into these bolt insertion holes 9.
3, and position the oak (10) in the same manner as in the above embodiment.

According to the above embodiment, when each nut 10 is positioned in the bolt insertion hole 9 of the thread 5, since each nut 10 is supported by the rod member 13 of the jig 11, a large number of nuts l
O can be positioned at the same time, and an accurate positioning state can be obtained.

Therefore, the welding work of the nut 10 becomes easier, and the efficiency of manufacturing the housing unit can be improved.

As shown in FIGS. 4 and 5, a nut positioning jig 14 according to a second embodiment of the present invention includes a rod member 1 of the jig 11.
For example, a ring-shaped permanent magnet 15 is fixed to the surface of a base member 12, which is the base of the magnet 3.

When this jig 14 is used, when positioning the nut 10, the nut 10 is attracted to the back surface of the nut 5 by the magnetic force of the permanent magnet 15.
0 drift is prevented, making welding work easier. Therefore, especially as shown in FIG.
Even if the nut lO is formed on the upper part of the jig 14, there is an advantage that the nut lO will not fall down from the rod member 13 of the jig 14.

In the above embodiment, the number of rod members 13 provided in the jig 11 was set to correspond to the number of bolt insertion holes 9 formed in the upper beam 5. With half the number of holes 9, the jig may be used twice for one thread 5 when positioning the nuts IO.

Further, in the second embodiment, the ring-shaped permanent magnet 15 is provided on the surface of the base member 12, but the permanent magnet 15 may be embedded in the base member 12 so as to coincide with the bar member 13, or The member 12 itself may be magnetized. Further, in this embodiment, an electromagnet may be used instead of the permanent magnet 15.

Furthermore, in the above embodiment, the upper beam 5 of the assembled frame
Although the nut 10 is welded to the upper beam 5, the nut 10 may be welded to the upper beam 5 first, and then the frame may be assembled using such an upper beam 5.

[Effects of the Invention] According to the nut positioning jig according to the present invention, accurate positioning can be easily obtained when welding the nut to the housing unit, so that the efficiency of manufacturing the housing unit can be improved. .

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a nut positioning operation using a nut positioning jig according to a first embodiment of the present invention, and FIGS. 2 and 3 show a nut positioning operation using this nut positioning jig. 4 and 5 are cross-sectional views showing the nut positioned on the beam using the nut positioning jig of the second embodiment. FIG. 6 is a perspective view of the unit house. , Fig. 7 is a perspective view of the frame of the housing unit, Fig. 8 is a perspective view showing the nut welded to the beam, and Fig. 9 is a perspective view of the frame of the housing unit.
This figure and FIG. 10 are side views showing the state in which the exterior member is attached to the beam. l...unit housing, 2...housing unit, 3...
- Frame, 5... Upper beam, 6... Lower beam, 9... Bolt insertion hole, lO... Nut, 11.14... Nut positioning jig, 12... Base member, 13 ... Bar member, 15... Permanent magnet.

Claims (2)

[Claims] (1) The frame of the housing unit is constructed by connecting upper and lower beams between the upper and lower ends of four pillars at the four corners, respectively, and aligns with the plurality of bolt insertion holes formed in the beams. A nut positioning jig used when welding a nut to the beam, wherein a plurality of rod members are inserted into the bolt insertion hole into the base member and the nut is inserted from the tip thereof into the bolt insertion hole. A housing unit nut positioning jig characterized by being provided in correspondence with the spacing. (2) The housing unit nut positioning jig according to claim 1, wherein a magnet is provided at the base of the rod member.