JPS597921Y2 - Balcony joist mounting device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for attaching joists for supporting decks of metal balconies.

A mounting material fixed to the outside of the building and a front beam spaced apart from the mounting material toward the outdoors are provided with receiving parts that protrude in opposition to each other. When fixing each receiving part and each end of the joist material by placing a was installed.

Therefore, firstly, it is necessary to make bolt through holes in both the front beam and the mounting material, which takes a lot of time.Secondly, if the length of the joist material is accurate, it will be difficult to make bolts. If an error occurs in the drilling position of the through-hole, the hole in the joist material and the hole in the receiving part will not match and the bolts cannot be tightened. There were drawbacks such as that it was not easy to position the front beam and the mounting material so that the bolt through holes matched perfectly.

Therefore, the object of this invention is to provide a joist mounting device that allows for easy positioning of the joist relative to the front beam and the mounting material, and also allows for easy fastening of bolts and nuts.

Next, an embodiment of this invention will be described based on the drawings.

A is a joist material, which has a hollow square rod-shaped joist body 1 and a lower part 2 of this joist body with mounting edges 3, 3' protruding outward on both sides in the width direction.
It consists of

At least one, preferably both, of the mounting edges are provided with holes 4 and 5 for bolt insertion at both ends in the longitudinal direction of the joist, and at least one of the holes is connected to a mounting material C to be described later. The hole 5 at the end on the opposite side is a notch opening outward in the width direction of the mounting edge.

Reference numeral B denotes a front beam separated from the outside of the building, which is shaped like a rectangular tube and has a handrail support part 6 on the upper surface, and a joist receiving part 7 protruding toward the building at the lower part of the inner wall. have.

Holes for bolt insertion are previously provided in the receiving portion at appropriate intervals in the longitudinal direction of the front beam.

C is a mounting material that is fixed horizontally to the outside of the building,
It integrally has a vertical part 9 and a joist receiving part 10 protruding in the direction of the front beam at the lower end of the vertical part, and has a substantially C-shaped cross section. , 8 are mounted at predetermined positions so as to protrude opposite each other.

The mounting member receiving portion 10 extends along the entire length of the mounting member in the longitudinal direction and has a groove 11 that is open on the upper surface.

To suspend and fix the above-mentioned joist material A between the front beam B and the mounting material C, one end of the joist material A is placed on the upper surface of the receiving part 7 of the front beam B, and the other end is placed on the upper surface of the receiving part 10 of the mounting material C. The bolts 12 are inserted from below the sockets by aligning the hole 4 at one end of the mounting edge with the hole 8 in the receiving part of the front beam, and the bolt 12 is inserted from above the mounting edge 3. Tighten nut 13.

In this case, a protruding strip 14 is provided on the upper surface of the end of the mounting edge, a square washer 15 is fixed to the nut 13, and this square washer is fitted between the protruding strip 14 and the side wall 16 of the joist main body 1. This prevents the nut from spinning when tightening the bolt.

In addition, when the joist is fixed to the front beam in a predetermined state perpendicular to the front beam and the mounting material, the bolt insertion hole 5 on the mounting material side of the mounting edge is inserted into the groove 11 of the receiving portion 10 of the mounting material. opposite.

A bolt 17 is inserted in advance into the groove 11 of the mounting member so that the bolt 17 can be slid freely at its head.

Therefore, after placing the joist material on the receiving part 10, the bolt 17
Slide the joist and insert its shaft into the hole 5, and tighten the washer 18 and nut 19 from above the mounting edge 3 to fix the joist to the mounting material.

As mentioned above, the notch hole 5 is provided at the end of the joist on the mounting material side, and the bolt 17 is slidably provided in the groove 11 in the receiving part 10 of the mounting plate. By sliding the bolt into the hole 5 and tightening the nut 19, the joist can be fixed to the mounting material, so the position of the joist can be restricted only at one end on the front beam side, and on the mounting material side. Since the other end is free, in other words, it is only necessary to align the hole 8 of the receiving part 7 of the front beam and the hole 4 of one end of the mounting material, so the work of installing the joists can be carried out extremely easily and smoothly. Therefore, when holes similar to holes 4 and 8 are provided in both the front beam and the mounting material, there is no possibility that the holes cannot be aligned due to positional deviation in the parallel direction between the front beam and the mounting material.

Similar to the receiving part 10 of the mounting material, the receiving part 7 of the front beam is also provided with a concave groove that opens on the upper surface, and the hole 4 at the end of the mounting edge of the joist A on the front beam side is also provided with the hole 4 at the end of the mounting material side. If it is notched like the hole 5, the joist material can be fixed at any position in the longitudinal direction of the front beam and the attachment material.

Note that the holes 4 and 5 can be provided in either or both of the mounting edges 3 and 3'.

As shown in FIG. 3, the tack D is placed on the joist material which has been fixed in the manner described above, and is fixed by screwing the screw 20 into the joist material.

As described above, according to this invention, the bolt insertion hole at at least one end of the mounting edge of the joist is made into a notch hole, and the joist receiving part provided in the horizontal part of the L-shaped mounting material is opened on the upper surface. A concave groove is provided, a bolt is slidably slid into the concave groove, and the bolt is inserted into the bolt insertion hole of the joist material, and a nut can be tightened to the bolt from above the mounting edge. The mounting position can be easily determined, and bolts and nuts can be easily tightened.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a perspective view showing the relationship between the joist and the front beam, Fig. 2 is a perspective view showing the relationship between the joist and the mounting material, and Fig. 3 is a perspective view showing the relationship between the joist and the mounting material. FIG. 2 is a perspective view showing a state in which a deck is placed on a joist. A...root edge material, 3,3'...mounting edge,
4, 5... Bolt insertion hole, B... Front beam, 7... Receptacle, 8... Hole, C...
...Mounting material, 10...Receiving part, 11...
Concave groove, 12.17... Bolt, 13.19...
····nut.

Claims (1)

[Scope of Claim for Utility Model Registration] (a) A mounting member fixed to the outer surface of the building and a front beam provided outdoors from the mounting member are provided with receiving portions that protrude in opposition to each other, At least the receiving portion of the mounting material is provided with a concave groove that is open on the upper surface and continuous in the longitudinal direction; At the same time, the mounting edge is provided with holes at both ends in the longitudinal direction of the joist for inserting bolts for fixing the mounting edge to the receiving portion of the front beam and the receiving portion of the mounting material with bolts and nuts. (c) Of the holes in the mounting edge, at least the holes at the end on the mounting material side are notched holes opening in a direction perpendicular to the longitudinal direction of the joist material; (2) Both ends in the longitudinal direction of the joist material are It is placed on the receiving part of the front beam and the receiving part of the mounting material, and at least a bolt is slidably inserted into the groove of the mounting material in advance, and (e) the notch of the joist is inserted into the mounting material. A balcony joist attachment device, characterized in that the shaft portion of the bolt that is slid in opposition to the recessed groove can be inserted into the notch hole.