JPH0338331Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a ceiling hanging bolt mounting bracket used for a ceiling edge holder hanging device.

(Prior art and its problems) When installing a ceiling board in a building, it is necessary to attach a ceiling base to a ceiling slab, beam, or girder in a hanging state. There is a base and a wooden ceiling base. Of these, the 7th suspension device is used to attach a lightweight steel frame ceiling base to a ceiling slab with a lower surface in which convex stripes and concave stripes are alternately connected.
To explain with a diagram, one end of the ceiling hanging bolt mounting bracket A is attached to the slanted wall on the lower surface of the ceiling slab B, a ceiling hanging bolt C is attached to the other end in a hanging state, and the lower end of this hanging bolt C is attached to the other end. A hanger D is attached to the ceiling slab B, and a large number of such hanging bolts C and hangers D are hung from the ceiling slab B. Then, a field edge support E is bridged between the hangers D and D, and a field edge support E is installed between the hangers D and D. A grip F is attached to a proper position of E, a large number of field edges G are attached by this grip F, and a ceiling board H is attached to this field edge G. However, when attaching the ceiling suspension bolt mounting bracket A to the ceiling slab B, in the past, one end of the bracket A was attached to the deck plate I, which was installed in advance on the lower surface of the ceiling slab B.
It is fixed by welding as shown in the figure, and if such a deck plate I is not provided, drill a suitable hole in one end of the metal fitting A as shown in the figure. The metal fitting A was installed by driving rivets into the ceiling slab B using a rivet gun. However, when welding is used, the work is time-consuming and inefficient, welding cannot be performed without a deck plate, and when using rivets, the rivet part of metal fitting A simply makes a hole in the flat part. This makes it difficult to position each rivet, and the rivets must be held in the position of the hole by some kind of holding means before each driving operation using a rivet gun.

(Technical means for solving the problem) The present invention has been made in view of the above, and is particularly useful when driving rivets without requiring any holding means as in the past. It is an object of the present invention to provide a ceiling hanging bolt mounting bracket that can be held in a predetermined position and that allows proper rivet driving with a rivet gun or hand hammer, and the present invention meets this purpose. The characteristics of
A metal fitting 1 made of a band-shaped sheet metal whose one end is to be attached to a ceiling slab or the like, wherein a required part of one side of the one end is depressed and a raised part 3 is formed on the other side, and this raised part This is because a nailing hole 4 is provided at the top of 3. Note that the "nail" in the nailing hole here includes, of course, a rivet.

(Example) Examples of the present invention will be described below with reference to FIGS. 1 to 6.

Figure 1 shows the ceiling edge holder hanging device. In this figure, 1 is a nearly L-shaped ceiling hanging bolt mounting bracket that is fixed to the ceiling concrete slab B with rivets P, and is a flat iron plate. It is formed into a substantially L-shape using a press or the like to form a lower plate part 1a and an upright plate part 1b extending upwardly from one end of the lower plate part 1b in a slightly inclined shape. The lower plate portion 1a is provided with a screw hole 2, and the upper end portion of the upright plate portion 1b is recessed into a circular shape with an appropriate diameter on the outer side, and a conical raised portion 3 is formed on the inner side thereof. At the same time, a nailing hole 4 is bored at the top of the raised portion 3, and the nailing hole 4 can be inserted into the nailing hole 4 by manually pushing a stud P into the nailing hole 4 so that the tip of the nailing hole 4 is shaped like the one shown in FIG. 3, for example. It is formed to a size that allows it to fit relatively tightly under such conditions.

Reference numeral 5 denotes a ceiling hanging bolt that is screwed into the screw hole 2 of the ceiling hanging bolt attachment fitting 1 and attached to the fitting 1. A hanger 6 is engaged with an appropriate position of this ceiling hanging bolt 5, and the hanger 6 and the hanging bolt are connected to each other. A fixing member 7 engages with the hanger 6 to fix the hanger 6 to the hanging bolt 5. As is clear from FIGS. 4A and 4B, the hanger 6 is formed by pressing a flat iron plate, and includes a locking portion 8, which is curved to have a U-shaped cross section. A female thread 9 is formed on the inner peripheral surface to be screwed into the hanging bolt 5, and the lower part of the locking part 8 is bent slightly diagonally in the direction away from the hanging bolt 1 to form an inclined step part 10. A hook portion 11 having a substantially U-shape in side view is extended below the inclined step portion 10 for suspending the field edge support F. Therefore, the locking portion 8 can be easily screwed into contact with the hanging bolt 5 at a desired position from the outside. Further, as shown in FIG. 1 and FIG. 5 A and B, the fixing member 7 is formed by pressing an iron plate into a cylinder shape with a bottom, and has a through hole 12 in the center through which the ceiling hanging bolt 5 can be freely inserted. It consists of a flange-shaped upper wall part 13 provided with a flange-shaped upper wall part 13 and a peripheral wall part 14 formed in a tapered shape that slightly widens downward from the upper surface part 13.
A flat wall portion 15 is formed over a part of the area. As shown in FIG. 1, the fixing member 7 is loosely fitted into the ceiling hanging bolt 5 through the through hole 12, and as shown by the solid line, the fixing member 7 is loosely fitted into the ceiling hanging bolt 5.
The U-shaped locking portion 1 of the hanger 6 is screwed into contact with the
0 from above, and by holding the U-shaped locking part 8 from its outer peripheral surface side by its peripheral wall part 14, the female thread 9 of the locking part 8 is prevented from separating from the hanging bolt 5. is being prevented. The reason why the peripheral wall portion 14 of the fixing member 7 is formed in a tapered shape that widens downward is to make it easier to fit the fixing member 7 onto the locking portion 8 and to reduce rattling.
Further, the reason why the flat wall portion 15 is formed is to correspond to the U-shape of the locking portion 8 and to reduce wobbling.

When using the above-mentioned ceiling edge holder hanging device, first the ceiling hanging bolt mounting bracket 1 is fixed to the lower surface of the ceiling concrete slab B. The deck plate I is attached to the surface of the deck plate I, and the ceiling suspension bolt mounting bracket 1 is attached to the inclined wall part b of the ceiling concrete slab B. Apply the outer surface of the upper end of the upper plate part 1b to the nailing hole 4.
The tip of the stud P is fitted by hand into the hole, and as shown in FIG. Fix it on the inclined wall b in the state shown in Figure 1. In this case, the nailing hole 4 is
Since a certain space is provided between the rivet and the surface of the inclined wall part b, by fitting the tip of the rivet P into the hole 4 relatively tightly, it is possible to temporarily hold the rivet at the predetermined position to be driven. Therefore, when setting the rivet gun _M , the muzzle m ₁ is externally fitted onto the head portion of the rivet P held in position.
The operation is as simple as placing the tip of the gun on the raised part 3. Especially since the raised part 3 is conical, the muzzle
It becomes easy to align m ₁ and the stud P. After completing the setting operation of the gun M, the piston _m2 is actuated by pulling a trigger (not shown) to drive a rivet. Next, the upper end portion of the ceiling suspension bolt 5 is screwed into the screw hole 2 of the lower plate portion 1a of the metal fitting 1 fixed to the ceiling concrete slab B as described above. Then, the fixing member 7 is inserted from below the ceiling hanging bolt 5 using the through hole 12 as shown by the chain line in FIG. If the female screw 9 is screwed into the threaded part of the hanging bolt 5 by contacting the bolt 5, and the fixing member 7 is placed on the locking part 8 from above as shown by the solid line, the hanger 6 becomes the fixing member. When the locking part 8 is screwed into contact with the ceiling hanging bolt 5 by the peripheral wall part 14 of 7, the hanging bolt 5 is
The hook portion 11 of this hanger 6 is fixed to
Insert Noen-uke F into. A downward tensile load is applied to the hanger 6 due to the insertion of the field support F, but since the female thread 9 of the locking part 8 is engaged with the female thread of the hanging bolt 5, the hanger 6 slips downward. It is securely held in place without any problems. Further, since the peripheral wall portion 14 of the fixing member 7 has a tapered shape that spreads downward, it is easy to be covered with the locking portion 8, and the fixing member 7 has a flat wall portion 14 in a part thereof.
5, once it is fitted onto the locking portion 8, it will not rotate and there will be less chance of rattling. To change the height position of the hanger 6, the locking part 8 is released from the ceiling hanging bolt 5 by slightly lifting the fixing member 7 to the position shown by the chain line in FIG. can be moved to the position of Therefore, the hangers 6 connected to such a large number of ceiling hanging bolts 5 must be adjusted at the time of installation so that the height positions are aligned in advance, for example, in accordance with the horizontally stretched string for leveling. If you keep it,
The subsequent installation of base materials such as the field edge holder F can be carried out without any adjustment. Moreover, since the hanger 6 does not rotate after the field edge holder F is fitted into the hook portion 11, the position of the hanger 6 will not shift due to vibration or impact. Also,
Since the hanger 6 and the fixing member 7 can be easily manufactured by pressing iron plates, they are suitable for mass production and are inexpensive.

Figure 6 shows a substantially Z-shaped ceiling hanging bolt mounting fitting 21 that can be attached and fixed to a horizontal wall on the lower surface of a ceiling concrete slab, etc. This fitting 21 is a metal plate with a flat strip shape. The lower plate part 21a, the upper plate part 21b and the standing plate part 21 are formed into a Z-shape.
c, and the lower plate part 21a has a screw hole 2.
2 is provided, and the upper plate portion 21b is recessed into a circular shape at a required portion on the upper surface side, and a conical raised portion 23 is formed on the lower surface side.
A nailing hole 24 is provided at the top of the ceiling concrete slab B. When installing this metal fitting 21, the upper surface of the upper plate part 21b is attached to the horizontal wall part of the lower surface of the ceiling concrete slab B.
b', the tip of the stud P is tightly fitted into the nailing hole 24, and temporarily held, then the stud P is inserted into the ceiling concrete slab B using a nail gun.
I'm starting to focus on it internally.

In addition, after the ceiling hanging bolt mounting bracket 1 or 21 is fixed to the ceiling concrete slab B,
The lower surface of the ceiling concrete slab B is coated with a fireproof covering material (indicated by T in FIG. 1) made of asbestos wool or rock wire wool to an appropriate thickness.

(Effects of the invention) According to the ceiling hanging bolt mounting bracket of the invention,
Since nails can be driven into ceiling slabs etc. by driving nails through the nailing holes provided at one end, work efficiency is improved compared to conventional welding work, and the metal fittings can be fixed even if there is no part to be welded such as a deck plate. Moreover, in the case of the metal fitting of the present invention, the part where the nailing hole is provided forms a raised part and the nailing hole is drilled at the top of the raised part, so this nailing hole can be easily removed. A certain space is created between the nail and the mounting surface of the metal fittings on the ceiling slab, etc., and the tip of the nail can be inserted into this space through the nailing hole and held there temporarily. The nails can be easily positioned during nailing, and there is no need to hold the nails with special holding means each time when nailing with a nail gun or hand hammer, and the nailing work can be performed reliably and easily. By forming the raised portion into a conical shape, it becomes easy to align the muzzle and the rivet particularly when driving a rivet with a rivet gun, and the nail can be driven while the rivet is securely held in a fixed position.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional explanatory diagram showing a hanging device for a ceiling frame holder equipped with fittings for attaching ceiling hanging bolts according to the present invention, and Fig. 2 is a perspective view showing the fittings for attaching ceiling hanging bolts in the device of Fig. 1. Figures 3 and 3 are cross-sectional explanatory views showing the state in which metal fittings are being nailed to a ceiling slab using a nail gun, and Figures 4 A and 4 are front and plan views of the hanger in the apparatus shown in Figure 1. , Figures 5A and 5B are a plan view and a side view of the fixing member, Figure 6 is a side view showing another embodiment of the present invention, and Figure 7 is a diagram of a ceiling field equipped with a conventional ceiling hanging bolt mounting bracket. It is a perspective view showing a hanging device of an edge holder. 1...Ceiling hanging bolt mounting bracket, 2...Screw hole,
3... Raised portion, 4... Nailing hole, 5... Ceiling hanging bolt.

Claims (1)

[Claims for Utility Model Registration] 1. A fitting made of a band-shaped sheet metal whose one end is attached to a wall surface such as a ceiling slab and whose other end is adapted to be attached with a ceiling hanging bolt, A necessary part on one side is depressed to form a raised part on the other side, a nailing hole is provided at the top of this raised part, and a screw hole into which a ceiling hanging bolt can be screwed is provided at the other end. Ceiling hanging bolt mounting bracket provided. 2. The ceiling suspension bolt mounting bracket according to claim 1, wherein the raised portion has a conical shape.