JPS644961Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an internally tightened battledore bolt for fastening a vertical frame, a beam, and a girder.

A conventional battledore bolt 1 has a screw 2 at one end, as shown in FIG.
were screwed together and a battledore part 4 was provided on the other end, so after passing the bolt 1 through the column 5 of the frame to be set up, screw the nut 3 onto the screw 2 and attach it to the outside of the frame. Put the outer siding 6 on the frame, set up the frame, and connect the girders and beams 7 to the columns 5 of this frame. Drill holes 9 in the girders and beams 7 to match the bolt holes 8 of the battledore part 4. If the battledore part 4 is fixed to the girder and beam 7 by inserting the bolt 10 into the hole 9 and screwing the nut 11, the column 5 of the framework and the girder and beam 7 will be temporarily connected by the battledore bolt 1. However, since it is not possible to tighten the pillars 5, girders, and beams 7 by turning the nuts 3, the joints become loose, making houses built vulnerable to wind and earthquakes, and the nuts 3 cause vibrations. The problem was that the joint could become loose and fall off, causing the joint to lose its function.

The present invention was developed to eliminate this drawback, and provides an internally tightened battledore bolt that uses tambuckles to securely connect columns, girders, and beams inside the framework. The purpose is to

Next, an example of implementation of the internal tightening type battledore bolt related to the present invention will be described below with reference to the drawings.

In FIGS. 2 and 3 of the drawings, 12 and 13 are a pair of bolts, one of which has a head 14, the other of which has a battledore portion 15 formed by pressing, and a bolt hole 16 is provided in this portion. Further, opposite threads 17 and 18 are formed at the corresponding ends of both bolts 12 and 13. 19 is a connecting tube with opposite screws 20 and 21 at both ends.
A tool holder 22 is formed in the middle part into a rectangular shape so that a spanner can be hung thereon, or a tool holder 22' is provided with a hole for inserting and turning a rod.
23 is a washer fitted to one of the bolts 12, and the head 1
This is to prevent 4 from getting stuck in pillar 5.

Next, the effects of the internal tightening type battledore bolt related to the present invention will be explained.

Insert the bolt 12 with a head through the column 5 of the shaft assembly to be built upright, and attach the connecting tube 1 to the screw 17.
After screwing together the screws 20 of 9, put the outer panel 6 on the outside of the frame, stand the frame on the foundation, insert the ends of the girders and beams 7 into the notches provided in the column 5, and attach the column 5. , the girder and the beam 7 are temporarily joined, and the connecting tube 19 is attached.
Drill a bolt hole 9 in the girder or beam 7 to match the hole 16 in the battledore part 15 of the bolt 13 screwed to the other end, insert the bolt 10 through this hole 9 and the hole 16 in the battledore part 15, This bolt 10 and nut 11
and tighten the nut 11, the battledore part 1
5 is firmly fixed to the girder and beam 7, in this state, if you apply a tool to the tool hook 22 or 22' and turn the connecting tube 19, the bolts 12 and 13 will be pulled together by the action of the opposite screws 20 and 21. Pillar 5
This is to strongly connect the girder and beam 7 to each other.

As mentioned above, the internal tightening type battledore bolt related to the present invention involves passing a headed bolt through the pillar of the framework to be built up, and bolting the bolt having the battledore part to the girder or beam to be connected to the pillar. The opposite threads of the connecting cylinder are screwed together with the opposite threads of both bolts, and the connecting cylinder is rotated by hanging a tool on the tool rack inside the shaft assembly, and the pulling action of the opposite screws is used to turn the connecting cylinder. Because columns, girders, and beams can be firmly connected, the constructed house is strong and has excellent vibration resistance, and is resistant to earthquakes and typhoons.
If the connecting tube is nailed to the girder or beam using the hole in the tool hook, it has the unique effect of not loosening the connection even when vibrations or shocks are applied.

[Brief explanation of drawings]

FIG. 1 is a front view showing the state in which a conventional battledore bolt is used, with a column and girder being longitudinally sectioned. FIG. 2 is a plan view of the internal tightening type battledore bolt of the present invention. FIG. 3 is a partially longitudinally sectional front view of the connecting tube and battledore portion same as above. Figure 4 is a side view of the same as above. FIG. 5 is a front view showing the state in which the internal tightening type battledore bolt of the present invention is used, with the column and girder being longitudinally sectionalized. In the figure, 12 is a bolt with a head 14, 13 is a bolt with a battledore portion 15, 17 and 18 are opposite threads, 1
9 is a connection tube, 20 and 21 are opposite threads, 22 and 2
2' is a tool rack.

Claims (1)

[Scope of utility model registration request] A bolt with a head and a bolt with a battledore part are formed with opposite threads corresponding to each other, and these opposite threads are screwed together with an opposite thread provided on a connecting tube having a tool hook. Tightening type battledore bolt.