JPH09256531A - Ceiling hanger for deck plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to prevent a hanger from coming off even when a hanger bolt is slightly loosened by fittingly mounting a hanger which suspends a ceiling substrate on a reinforcing rib of a deck plate definitely. SOLUTION: This hanger comprises a horizontal member 3 and a hang bolt where the horizontal member 3 is provided with a horizontal plate and a slide plate 6. On inclined surface area 7A of the horizontal plate 5 is the length which fails to reach one reinforcing rib while a fit-in edge 5b, which is fitted into the other reinforcing rib, is formed at the tip of the other inclined surface area 7B. The slide plate 6 is slidably engaged with the inclined surface area 7A and is deformed toward the reinforcing rib along the inclined surface area 7A. When the horizontal member 3 is mounted on a deck plate, a fit-in edge 6b, which projects from the tip of the inclined surface area 7A is fitted in the reinforcing rib so that a locking portion 6c provided on the other end may come in contact with the hang bolt. Even when the hang bolt is loosened, the hang bolt prevents the movement of the slide plate 6 as long as it is engaged with the horizontal member 3 so that the hanger may not come off from the reinforcing rib.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling hanging hanger for a deck plate, and more specifically, for hanging a field frame receiver or the like on a deck plate when a hanging ceiling structure is constructed on a deck plate having a synthetic floor plate. It relates to hanger fittings used for.

[0002]

2. Description of the Related Art A deck plate is a steel plate in which horizontal ridges on the ridges and horizontal ridges on the valleys are repeated so as to be repeated through inclined webs, and some ridges having a constant cross-sectional shape are maintained. The corrugated plate is made of, for example, a plurality of steel corrugated beams arranged side by side, and concrete can be placed on the upper surface of the corrugated plate to form a composite floor plate of a building.

As shown in FIG. 8, a ceiling structure is constructed on the lower surface of such a synthetic slab deck plate 1 which forms a synthetic floor plate 12 in combination with cast concrete 11, but recently, The hanger 13 is attached using the recessed portion 1m of the stiffening rib 1M and the recessed portion 1n of the stiffening rib 1N provided on the inclined web stripe 1R so as to extend in the longitudinal direction, and the hanger 13 is attached to the hanger 13. Often adopted.

An example of the hanger is a real fair 7-420.
No. 16 publication. As shown in FIG. 9A, the hanger 13 is installed in a space below a ridge horizontal strip 1P forming an upper part of one strip 1A, and is curved or bent upward as a whole. It is composed of a horizontal member 14 and a hanging bolt 4 which has an upper end portion screwed into a screw hole 14a provided in the central portion of the horizontal member 14 and hangs down.
A field rim receiver 16 is attached to the lower end of the hanging bolt 4 via a hanging metal fitting 15 shown in FIG. 8, and a field rim 17 is fixed to the field rim receiver 16 via a clip or the like. A ceiling plate (not shown) can be attached.

In such a suspended ceiling structure, the above-mentioned horizontal member 14 has a substantially rectangular shape in a plan arrow view shown in FIG. 9 (b). The left and right lengths are stiffening ribs 1M, 1N
Of the lower protrusion of the stiffening rib 1M.
It is selected to be slightly longer than the length L ₁ between r and 1r.

Therefore, since the horizontal member 14 cannot be fitted in the recesses 1m and 1n in the mounting posture,
As shown by the chain double-dashed line, the strips are arranged obliquely with respect to the longitudinal direction in which the strips 1A extend, and then rotated in the direction of the arrow 18 so that their ends are recessed 1m, as shown in FIG. 9C. It fits in 1n. In order to make this fitting operation smooth, the horizontal length of the horizontal member 14 in the free state is
It is slightly shorter than the distance L ₂ between the bottoms of the recessed portions 1m and 1n (see FIG. 9B).

Next, the hanging bolt 4 is screwed into the screw hole 14a, and the upper end of the hanging bolt 4 is strongly abutted against the lower surface of the ridge horizontal strip 1P as shown in FIG. 9 (a). Member 14
As shown by the solid line from the state of the chain double-dashed line, the central portion is pushed down, and while the curved or bent state becomes slightly gradual, both ends of the horizontal member 14 are strongly pressed against the recessed portions 1m, 1n. Therefore, the horizontal member 14 becomes stretched, and the hangers 13 are securely fixed to the deck plate 1 by the reaction forces from the three places of the stiffening ribs 1M and 1N and the ridge horizontal strip 1P, so that the ceiling plate and the like can be secured. The hanging structure can be made strong.

According to the above-mentioned structure, the hanger has a simple shape and can be easily manufactured, and the mounting operation to the deck plate and the detaching operation for changing the position are also easy. . That is, with reference to FIG. 8, when it is desired to slightly change the mounting position of the hanger 13B when mounting the field edge receiver 16 on each hanging fitting 15, the hanging bolt 4 is reversely rotated to lower the upper end. When the horizontal member 14B returns to the free state and the restraint by the stiffening ribs 1M and 1N is released, the horizontal member 14B can be moved to a position in line with the horizontal member 14A.

[0009]

As can be seen from this, when the hanger 13 is rotated and mounted on the deck plate 1, the horizontal member 14 and the stiffening rib 1 which are in a free state are mounted.
Between the bottom of the concave portion 1m of M and the concave portion 1n of the stiffening rib 1N
The gap C shown in FIG. 9 (b) is required between the bottom and the bottom. Therefore, when the suspension bolt 4 is loosened by vibration such as an earthquake, the above-mentioned strong three-point support is released as in the case of the detaching work. More specifically, the horizontal member 14
Is rotated a little in the direction opposite to arrow 18, stiffening rib 1
There is a risk of falling off from M and 1N.

The present invention has been made in view of the above background, and an object thereof is to simplify the operation of attaching the hanger to the deck plate and to simplify the operation even if the suspension bolt is loosened due to vibration or the like. It is an object of the present invention to provide a ceiling hanger for a deck plate, which has such a structure that the horizontal member can be kept in a state where it does not come off from the recessed portion of the stiffening rib.

[0011]

According to the present invention, a horizontal ridge portion and a horizontal valley portion have a continuous corrugated cross section which repeats through an inclined web edge and extends in the longitudinal direction. A hanger for suspending a ceiling base under a deck plate for a synthetic slab, the two dents facing each other of a stiffening rib provided so as to extend in the longitudinal direction on the side of the inclined web are used. A horizontal member that is installed in the space below the horizontal edge of the ridge and that has an inclined surface portion that descends from the center toward each tip, and the upper end is screwed into the screw hole provided in the center of the horizontal member. The present invention is applied to a ceiling hanging hanger provided with a hanging bolt to which a hanging metal fitting is attached at a lower end portion that is hung down. The feature is that it is shown in FIG.
Referring to, the horizontal member 3 is provided with a horizontal plate 5 having left and right inclined surface portions 7A and 7B, and a slide plate 6 that is slidably displaced along one inclined surface portion 7A. The horizontal plate 5 has such a length that one inclined surface portion 7A thereof does not reach one of the concave portions 1m and 1n of the stiffening ribs 1M and 1N (see FIG. 3 (d)) facing each other. And the fitting edge portion 5b fitted into the other recessed portion 1n is provided at the tip of the other inclined surface portion 7B. The slide plate 6 is slidably engaged with the one inclined surface portion 7A, and is displaced toward the one recessed portion 1m along the inclined surface portion 7A, and one end thereof has the inclined surface portion 7A of the horizontal plate 5A. Is provided with a fitting edge portion 6b protruding from the tip end portion of the slide plate 6 and fitted into the recess portion 1m, and the other end of the fitting bolt edge portion 6b is brought into contact with the hanging bolt 4 (see (d) of FIG. 3) to retract the slide plate 6 thereof. That is, the locking portion 6c for restraining the displacement is formed.

According to this structure, the horizontal member 3 is mounted on the deck plate 1 with the slide plate 6 retracted.
(Refer to (a) and (b) of FIG. 3), the slide plate 6 is slidably displaced, and the left and right ends of the horizontal member 3 are surely recessed portions 1m and 1n of the stiffening ribs 1M and 1N. (See (c) of Fig. 3). When the suspension bolt 4 is screwed into the screw hole 7a of the horizontal plate 5 in that state, the side surface of the suspension bolt 4 abuts on the engaging portion 6c at the other end of the slide plate 6, and the subsequent displacement of the slide plate 6 is prevented. Blocked (see FIG. 3 (d)). When the hanging bolt 4 is screwed to bring its upper end into strong contact with the lower surface of the ridge horizontal strip 1P, the central portion of the horizontal plate 5 integrated with the slide plate 6 is pushed down, and the hanger 2 is raised. And it is strongly fixed by the reaction force from the left and right three points. Even if the hanging bolt 4 is loosened, the slide plate 6 is held in a restrained state unless the hanging bolt 4 is loosened so much that the hanging bolt 4 comes off the screw hole 7a. The hanger 2 is a recess 1 of the stiffening ribs 1M and 1N.
It is in close contact with m and 1n and does not fall off the deck plate 1 even if it receives a slight vibration or the like.

An engaging hook 6a is engaged with the slide plate 6 so as to be slidably displaced with respect to one inclined surface portion 7A.
Is provided. The horizontal plate 5 and the slide plate 6 do not separate in the vertical direction, and the slide plate 6
Is slidably displaced along the inclined surface portion 7A in a stable state.
On the contrary, as shown in FIG. 5A, the engaging hook 1 that engages slidably with the inclined surface portion 7A of the slide plate 6
7a may be provided on the inclined surface portion 7A, and the same function is achieved in this case as well.

Returning to FIG. 1, the slide plate 6 is so arranged that the upper surface of the slide plate 6 is in sliding contact with the inclined surface portion 7A.
Is attached to the lower surface of the inclined surface portion 7A, and the tongue portion 6A is bent so that the other end portion including the locking portion 6c is substantially horizontal.
Is provided (see FIG. 3 (c)). The slide plate 6 can be retracted to some extent without interfering with the horizontal member 3, and when it is advanced, the tongue 6A comes into contact with the suspension bolt 4 (see (d) of FIG. 3).

As shown in FIG. 5B, the slide plate 6 is attached to the upper surface of the inclined surface portion 7A so that the lower surface of the slide plate 6 is in sliding contact with the inclined surface portion 7A. In this case, it is preferable to form an operation portion 6r for displacing the slide plate 6 at a position where it does not overlap the inclined surface portion 7A of the slide plate 6. If it is pushed out using this operation portion 6r, the slide plate 6 can easily advance even from under the horizontal plate 5.

If a notch 6n (see FIG. 1) into which the suspension bolt 4 is fitted is formed at the center of the edge of the engaging portion 6c, even if there is some play in the engaging hook 6a, it will slide. The posture of the plate 6 is stably held by the suspension bolt 4.

[0017]

According to the present invention, the hanger is arranged in the space below the horizontal horizontal edge of the ridge of the deck plate without rotating the horizontal plate, and the slide plate is advanced to closely fix the stiffening rib. Can be kept. The displacement of the slide plate is prevented when the hanging bolt is attached to the horizontal plate, and the close contact state can be maintained. When the hanging bolt is screwed into the screw hole and the upper end is brought into contact with the lower surface of the horizontal ridge of the ridge, the center of the horizontal plate that is integrated with the slide plate is pushed down, and the hanger has three points on the top and left and right. It receives a large reaction force from and is strongly fixed. Even if the hanging bolt may loosen, the position of the slide plate does not change as long as the hanging bolt is screwed to the horizontal plate, and high adhesion between the hanger and the stiffening rib is maintained. The rattling of the hanger is suppressed as much as possible. Even if the hanger receives a rotational force, the fitting edge portion having a certain width and extending in the longitudinal direction is in at least line contact with the recess portion of the stiffening rib, and does not run out and come off.

If the slide plate is provided with an engaging hook that slidably engages with the inclined surface portion or the engaging hook is formed on the inclined surface portion, the slide plate is always kept integrally with the horizontal plate, It is also easy to slide the slide plate with respect to the inclined surface portion and advance it toward the recessed portion of the stiffening rib.

When the slide plate is attached to the lower surface of the inclined surface portion, a tongue-shaped portion is formed which is bent so that the other end portion including the locking portion is substantially horizontal. As a result, the locking portion of the slide plate can be brought into contact with the suspension bolt below the horizontal member, and the slide plate is prevented from retreating or falling off excessively.

When the slide plate 6 is attached to the upper surface of the inclined surface portion so that the lower surface of the slide plate is brought into sliding contact with the inclined surface portion, the operation portion for displacing the slide plate to a position where the slide plate and the inclined surface portion do not overlap. By forming the above, it is possible to move the slide plate from below the horizontal plate via the operation portion without turning the hand above the horizontal member, and the mounting work becomes easy.

If the notch for fitting the suspension bolt is formed at the center of the end edge of the engaging portion, even if there is a backlash in the engaging hook portion, a uniform pressing force slides through the notch. Acting on the plate, a stable fixing is achieved along the recess of the stiffening rib of the fitting edge.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a ceiling hanger for a deck plate according to the present invention will be described in detail with reference to the drawings showing an embodiment thereof. FIG. 3 shows a procedure for attaching a hanger to one striation of a deck plate for forming an upper floor structure. As shown in (a), the ridge portion 1A of the deck plate 1 has a constant corrugated cross section in which a ridge portion horizontal ridge side 1P and a valley portion horizontal ridge side 1Q are repeated so as to repeat through an inclined web ridge 1R. And extends in the longitudinal direction, that is, in the direction perpendicular to the paper surface. A hanger 2 shown in (d) is for suspending a ceiling base under the deck plate 1 for the synthetic slab, and is a stiffening rib 1M provided on the inclined web edge 1R so as to extend in the longitudinal direction. 1
It is installed in the space below the ridge horizontal strip 1P by utilizing the respective concave portions 1m and 1n facing each other.

The hanger 2 comprises a horizontal member 3 which is curved or bent upward as a whole, and a suspension bolt 4 which is screwed to the horizontal member 3. The horizontal member 3 is composed of a horizontal plate 5 and a slide plate 6 as shown in FIG. 2. The horizontal plate 5 is, as shown in FIG.
Inclined surface portions 7A, 7 descending from the center toward each tip
It is a press-formed steel sheet including B, and has a strip shape with a length of, for example, about 150 mm as seen in a plane arrow as shown in (a).

As shown in FIG. 3 (d), the hanging bolt 4 has a screw hole 7a provided in the central portion of the horizontal plate 5 and has an upper end portion screwed down and is hung down. Is a long threaded rod to which a hanging bracket (not shown) can be attached to attach a field frame support or the like for supporting the ceiling plate.

Incidentally, since the hanging bolt 4 can be displaced in the vertical direction with respect to the horizontal member 3,
It is necessary that the hanging bolt 4 and the horizontal plate 5 are securely screwed together. Since the horizontal plate 5 is a thin plate, the screw hole 7a is formed by a nut fixed by welding, or a screw is engraved on a cylindrical inner surface slightly stretched so as to be bent upward by burring. Good.

The horizontal plate 5 which constitutes the main part of the horizontal member 3 has a length such that one inclined surface portion 7A does not reach the one recessed portion 1m, and the other inclined surface portion 7B has a tip end. A fitting edge portion 5b fitted in the other recessed portion 1n is provided. In addition, this fitting edge 5b
Is the edge 5m, 5m, like the fitting edge 6b described later.
(See FIG. 1).

The slide plate 6 is arranged on the lower surface of the inclined surface portion 7A so that the upper surface thereof is in sliding contact with the one inclined surface portion 7A. As shown in FIG. 2 (a), engaging hooks 6a, 6a for engaging the inclined surface portion 7A are provided on both sides of the slide plate 6 and can be slidably displaced with the inclined surface portion 7A, but easily. Does not come off in the vertical direction. Therefore, as shown in FIG. 1, the slide plate 6 is extended from the state of the solid line as shown by the chain double-dashed line along the inclined surface portion 7A, and the slide plate 6 is slid as shown in FIGS. 3B to 3C. Plate 6 stiffening rib 1M recess 1m
Can be displaced toward.

In the vicinity of the tip of the inclined surface portion 7A, as shown in FIG.
A protrusion 5a slightly deformed by caulking or the like is provided. When the projection 5a comes into contact with the end surface of the engaging hook 6a, the slide plate 6 is prevented from being displaced further to the left and is prevented from falling off.
Incidentally, the protrusion 5a is formed after the slide plate 6 is attached to the inclined surface portion 7A.

One end of the slide plate 6 (left end in the figure)
A fitting edge portion 6b having a certain width in the longitudinal direction is formed on the slide plate 6 and the slide plate 6 is formed on the other end portion.
Is formed with a locking portion 6c for restraining the displacement. The fitting edge portion 6b projects from the tip end portion of the horizontal plate 5 and a recess portion 1m formed on the inner surface of the stiffening rib 1M shown in FIG. 3C.
The engaging portion 6c is a portion to be brought into contact with the suspension bolt 4 as shown in (d).

In the example of FIG. 1, two short edges 6m, 6m extending in the longitudinal direction are provided at the fitting edge portion 6b with a certain interval. Therefore, this fitting edge 6
When b is seated in the recess 1m, a small rotational force is applied to the horizontal member 3
The rotation can be prevented by the two edges 6m and 6m even when the above action is performed.

The other end portion of the slide plate 6 including the engaging portion 6c is a tongue portion 6A which is bent so as to be substantially horizontal as shown in FIG. 3 (d). this is,
This is to allow the slide plate 6 to be retracted in the state where the suspension bolt is not screwed onto the horizontal member 3 as in (a). That is, if it is straight like the two-dot chain line, the extended portion corresponding to the locking portion 6c secured for contacting the suspension bolt 4 will interfere with the horizontal plate 5. Of course, if it is retracted excessively, the tip of the locking portion 6c abuts the lower surface of the other inclined surface portion 7B as shown in (a), so the slide plate 6 is also prevented from coming off from the tongue portion 6A side. be able to.

At the center of the edge of the engaging portion 6c, as shown in FIG.
As shown in, a notch 6n into which the hanging bolt 4 is fitted is provided. Although the engaging hook 6a is provided, a slight lateral gap may be left between the slide plate 6 and the inclined surface portion 7A. Even in such a case, the hanging bolt 4 is formed in the notch 6n. The slide plate 6 will not be displaced laterally if it is fitted, and it becomes easy to keep the fitting edge 6b completely seated in the recess. The length of the slide plate 6 is preselected so that the notch 6n overlaps the screw hole 7a of the horizontal plate 5 when the fitting edge 6b of the slide plate 6 is completely seated in the recess. Has been done.

With the structure of the ceiling hanger for deck plate described above, the hanger 2 can be attached to the deck plate 1 without rotating the horizontal member 3. Referring to FIG. 3, first, as shown in FIG. 3A, the slide plate 6 is moved to the right, and the fitting edge portion 5b at the tip of the other inclined surface portion 7B is placed in the right recess portion 1n.

Next, the slide plate 6 is pushed up as shown in (b) so that the fitting edge portion 6b faces the left recessed portion 1m. Then, the slide plate 6 is displaced to the left and the fitting edge portion 6b is seated as shown in (c). In this operation, the slide plate 6 is advanced with a little force so as to leave as little space as possible between the fitting edges 6b, 5b and the bottoms of the recesses 1m, 1n.
At that time, the notch 6n of the locking portion 6c of the slide plate 6 is located immediately below the screw hole 7a of the horizontal plate 5.

As shown in (d), the suspension bolt 4 is inserted from below into the notch 6n and screwed into the screw hole 7a, and is screwed until the tip of the suspension bolt 4 abuts the lower surface of the ridge horizontal strip 1P. Let When the slide plate 6 is advanced, even if there is a slight gap left between the tips of the fitting edge portions 6b and 5b and the bottom surfaces of the recesses 1m and 1n, the ridge portion horizontal The slide plate 6 is more strongly pushed into the recess 1m by the suspension bolt 4 to which the reaction force from the striation 1P acts, and as a result, the fitting edge 5 of the horizontal plate 5 is attached.
b is also strongly pushed into the recess 1n.

That is, similarly to the case described with reference to FIG. 9A, the position of the screw hole 7a is slightly pushed down. However, the engaging portion 6c of the slide plate 6 is in contact with the side surface of the hanging bolt 4 to prevent the slide plate 6 from being displaced, and
Since the engaging hooks 6a (see FIG. 2 (b)) substantially come into close contact with the inclined surface portion 7A of the above and are prevented from separating in the vertical direction, a compressive force in the horizontal direction acts on the horizontal member 3. Then, it is received by the recesses 1m and 1n.

In this manner, the hanger 2 is firmly supported by the three-point support in the space below the horizontal ridge 1P. After that, the ceiling base can be attached to the lower end of the hanging bolt 4. If you want to change the mounting position of the hanger 2, attach the suspension bolt 4 to the screw hole 7a or the notch 6n.
If it is removed from the slide plate 6, the slide plate 6 can be retracted, and the position of the horizontal member 3 can be displaced.

The hanger 2 is fixed by the three-point support as described above, but vibration is applied to the deck plate 1 due to an earthquake or the like, and shaking from the ceiling base or the like acts on the hanging bolt 4 to cause the hanging bolt 4 to move. Is slightly slackened, the reaction force from the horizontal ridge 1P cannot be obtained. In this case, the horizontal member 3 is simply placed on the stiffening ribs 1M and 1N, but the displacement of the slide plate 6 is prevented as long as the locking portion 6c of the slide plate 6 is in contact with the suspension bolt 4. The horizontal member 3 does not come off from the deck plate 1.

Since the fitting edge portion 6b is provided with the two edges 6m, 6m shown in FIG. 1 and is in contact with the recess portion 1m at two places, the hanging bolt 4 is moved laterally when loosened. Even if a rotational force acts on the frame member 3 for some reason, the fitting edge portion 6b is prevented from rotating, and the horizontal member 3 is reinforced by the stiffening ribs 1M, 1M.
It does not fall from N.

By the way, the fitting edge 6b at the tip of the slide plate 6 and the fitting edge 5b at the other end of the horizontal plate 5 are provided.
May have a linear shape as shown in FIG. 4 (a). In short, it suffices to maintain a relatively long line contact with the bottom of the recess even if a rotational force acts on the horizontal member 3. On the other hand, the locking portion 6c does not necessarily have to be provided with the above-mentioned cutout 6n. As shown in the drawing, the locking portion 6c has a linear contact edge 6p and is brought into contact with the side surface of the hanging bolt 4 as shown in FIG. Can be kept and the shape is also simplified.

FIG. 4B shows an example in which the slide plate 6 is provided with different engaging hooks 16a which are slidably attached to the inclined surface portion 7A. The engaging hook 6 of FIG. 1 described above
Although a covers the both side edges of the inclined surface portion 7A, in this example, a rectangular engagement hole 7b is opened in the inclined surface portion 7A, and the center of the slide plate 6 is cut and bent to be bent so as to spread to both sides. It has become a thing.

The engaging hook 16a has a substantially semi-circular cross section, and the left and right sides of the engaging hook 16a may be fitted in the engaging hole 7b with the distance between the ridges 16m and 16m shortened. Engagement hook 1
If 6a is elastically restored to its original shape, slide plate 6
Keeps in close contact with the horizontal plate 5. In the case of this example, the engaging hook 16a is located on the left side edge 7c of the engaging hole 7b.
When the slide plate 6 contacts the horizontal plate 5,
Is prevented from falling off in the direction along the slope of.

By the way, the engaging hooks 6a are not provided on the slide plate 6, but are formed on both sides of the inclined surface portion 7A as shown in FIG. 5A, and the slide plate 6 is formed by the engaging hooks 17a. It may be slidably supported. In this case, it is not necessary to provide the caulking portion corresponding to the above-mentioned protrusion 5a. This is because the tongue portion 6A makes it impossible to perform an excessive rightward movement or a leftward movement.

Of course, by adopting the structure as shown in FIG. 4B, the slide plate 6 is provided with the one corresponding to the engaging hole 7b, and the inclined surface portion 7A is provided with the one corresponding to the engaging hook 16a. You may keep it. As can be seen from this, since the slide plate 6 does not disengage from the one inclined surface portion 7A in the vertical direction, and the sliding hook of the slide plate 6 can be brought into sliding contact with the horizontal plate 5, Although not shown, each of the slide plate 6 and the inclined surface portion 7A may be partially provided with a dovetail groove having a constant cross section so as to extend in the sliding direction, and both dovetail grooves may be fitted. .

FIG. 5B shows an example in which the slide plate 6 is arranged on the horizontal member 3. Therefore, the slide plate 6 is attached to the upper surface of the inclined surface portion 7A so that the lower surface thereof is in sliding contact with the horizontal plate 5. In the illustrated example, since the burring processed piece forming the screw hole 7a provided on the horizontal plate 5 is formed above, the other end portion of the slide plate 6 has a shape that is flipped up. ing. Incidentally, the drop-out preventing projection 5a is provided on the left side of the engaging hook 17a.

In such an example, when the slide plate 6 is moved back and forth, the hand may be turned over the horizontal member 3 to operate the slide plate 6. However, the inclined surface portion 7A
The slide plate 6 has an inclined surface 7
It is preferable to provide an operation portion 6r for displacing the slide plate 6 at a position where it does not overlap with A.

As shown in (c), the operating portion 6r may be an arcuate notch formed on the side edge or a hole indicated by a chain double-dashed line. Further, it may be a protrusion protruding laterally. It can also be formed by bending a part of the slide plate 6 as shown in (d). Of course, in terms of shape, even if the slide plate 6 is not positively deformed, a part that can be slid with a hand or a tool may be formed in a part of the slide plate 6.

As described above, also when the slide plate 6 is arranged on the upper surface of the horizontal member 3, the hanger 2 is moved through the operations shown in FIGS. 6A and 6B in the same manner as in the case of FIG. It can be fixed to the deck plate 1. The notch 6n is formed in the engaging portion 6c, or the engaging portion 6c is formed as shown in (c).
It is needless to say that the displacement of the slide plate 6 can be blocked by the hanging bolt 4 even if the contact edge 6p is provided in the simple shape.

FIG. 7A shows a case where the screw hole 7a is formed below the horizontal member 3, and the slide plate 6 may be a linear plate. (B) is a horizontal member 3
Is an example of an arch shape that bulges in an arc shape instead of an umbrella shape.
The slide plate 6 may be located above the horizontal plate 5 as shown, or may be located below (not shown). In any case, the horizontal member 3 including the horizontal plate 5 and the slide plate 6 may have a shape that can easily withstand a reaction force from the ridge horizontal strip 1P.

The engaging hooks 6a may be provided in two places dispersed as shown in FIG. 6 (c) and FIG. 7 (b).
In that case, even if the protrusions 5a for preventing falling are provided,
It is only necessary to form one between both engaging hooks. By the way, since the projection 5a needs to be formed after the slide plate 6 is attached to the horizontal plate 5, it can be easily provided by caulking the side edges as described above.

As can be seen from the above description, the horizontal member is arranged on the deck plate in a state where the slide plate is retracted without rotating the horizontal plate, and the slide plate is advanced and closely fixed to the stiffening rib. Can be kept. The displacement of the slide plate is prevented when the hanging bolt is attached to the horizontal plate, and the close contact state can be maintained. When the hanging bolt is screwed into the screw hole and the upper end is brought into contact with the lower surface of the horizontal ridge of the ridge, the center of the horizontal plate that is integrated with the slide plate is pushed down, and the hanger has three points on the top and left and right. It receives a large reaction force at and is fixed more strongly.

Even if the hanging bolt is loosened, the position of the slide plate does not change as long as the hanging bolt is screwed with the horizontal plate, so that the close contact with the stiffening rib of the hanger is maintained and the hanger is maintained. There is no rattling. Since the fitting edge having a certain width is at least in line contact with the recessed portion of the stiffening rib extending in the longitudinal direction, the horizontal member will sneak out even if it receives a rotational force for some reason. It does not come off. Of course, when removing the hanger from the deck plate, the suspension plate can be displaced by removing the hanging bolt from the horizontal plate, and the mounting position of the hanger can be easily changed.

[Brief description of drawings]

FIG. 1 is a perspective view of a horizontal member of a ceiling hanger for a deck plate according to the present invention.

FIG. 2 is an example of a horizontal member, (a) is a top view,
(B) is a front view and (c) is a bottom view.

FIG. 3 shows a procedure for attaching a hanger to a deck plate, (a) is an initial layout diagram, (b) is a layout diagram when the slide plate is exposed to the stiffening rib, and (c) is the slide plate advanced. (D) is a layout drawing after fixing the hanger to the deck plate by screwing the hanging bolts.

FIG. 4A is a top view of a horizontal bridging member having different shapes of a fitting edge portion and a locking portion, and FIG. 4B is a perspective view of the lateral bridging member including another example of the engaging hook.

FIG. 5 is a different example of a slide plate, (a)
Is a mounting diagram when a slide plate without a notch is in contact with a suspension bolt, (b) is a layout diagram when the slide plate is installed on the upper surface of the horizontal plate,
(C) is a top view of a different example when a slide plate is arranged on a horizontal plate, and (d) is a layout view showing an example of a different operation unit.

FIG. 6A is an initial layout diagram of a hanger mounting procedure when a slide plate is placed on a horizontal plate,
(B) is a layout drawing when the fitting edge of the slide plate is exposed to the stiffening rib, and (c) is a layout drawing when the locking portion is brought into contact with the suspension bolt.

FIG. 7A is a layout view of a horizontal bridge member when a linear slide plate is used, and FIG. 7B is a layout view when an arch-shaped horizontal bridge member is used.

FIG. 8 is a three-dimensional view of a structure for mounting a hanger on a deck plate and suspending a ceiling base on the hanger.

FIG. 9 (a) is a layout view of a conventional hanger attached to a deck plate, and FIG. 9 (b) is a cross-section of a stiffening rib when a horizontal member is placed under the deck plate in an oblique posture and rotated. A plan view explaining the operation to attach to the section,
(C) is a layout drawing of a state in which the horizontal member is placed in the recess.

[Explanation of symbols]

1 ... Deck plate, 1P ... Peak horizontal strip, 1Q ... Valley horizontal strip, 1R ... Inclined web strip, 1M, 1N ... Stiffening rib, 1m, 1n ... Recess, 2 ... Hanger, 3 ... Horizontal Frame member, 4 ... Hanging bolt, 5 ... Horizontal plate, 5b ... Fitting edge part, 6 ... Slide plate, 6A ... Tongue-shaped part, 6a ... Engaging hook, 6b ... Fitting edge part, 6c ... Engagement part , 6n ... Notches, 6r ... Operating part, 7A, 7B ... Inclined surface part, 7a ... Screw hole, 16a, 17a ... Engaging hook.

Claims (6)

[Claims] 1. A deck plate for a synthetic slab extending in the longitudinal direction having a constant corrugated cross section in which the horizontal ridges of the ridges and the horizontal ridges of the valleys are continuous so as to repeat through the inclined web edges. A hanger for suspending a ceiling substrate, which is a space below the horizontal ridge of the ridge part utilizing two facing recesses of a stiffening rib provided so as to extend in the longitudinal direction on the inclined web ridge. And a horizontal member having an inclined surface portion that is hung from the central portion toward each tip, and an upper end portion is screwed into a screw hole provided in the central portion of the horizontal member and is suspended at a lower end portion that hangs down. In a ceiling hanging hanger provided with a hanging bolt to which a metal fitting is attached, the horizontal member is slidably displaced along a horizontal plate having respective inclined surface portions on the left and right sides and one inclined surface portion. Equipped with slide plate, One of the inclined surfaces of the horizontal plate has a length that does not reach one of the opposing recesses of the stiffening rib, and the tip of the other inclined surface is provided with a fitting edge to be fitted into the other recess. The slide plate is slidably engaged with the one inclined surface portion and is displaced toward the one concave portion along the inclined surface portion, and one end of the horizontal plate is inclined at one end thereof. A fitting edge portion is provided which protrudes from the tip end of the surface portion and is fitted into the one recessed portion, and a locking portion for contacting the suspension bolt and restraining the backward displacement of the slide plate is provided at the other end. Ceiling suspension hanger for deck plate, which is characterized by being formed. 2. The deck plate according to claim 1, wherein the slide plate is provided with an engagement hook that engages with the one inclined surface portion so as to be capable of sliding contact displacement. Ceiling hanger for use. 3. The deck according to claim 1, wherein the one inclined surface portion is provided with an engagement hook that engages with the inclined surface portion of the slide plate in a slidable manner. Ceiling hanging hanger for plates. 4. The slide plate is attached to a lower surface of the inclined surface portion such that an upper surface thereof is in sliding contact with the one inclined surface portion, and the slide plate is bent so that the other end portion including the locking portion is substantially horizontal. The ceiling hanger for a deck plate according to any one of claims 1 to 3, wherein the tongue-shaped portion is formed. 5. The slide plate is attached to an upper surface of the inclined surface portion so that a lower surface thereof is in sliding contact with the one inclined surface portion, and the slide plate is provided at a position where the slide plate does not overlap with the one inclined surface portion. The ceiling hanger for a deck plate according to any one of claims 1 to 3, characterized in that an operating portion for displacing the deck is formed. 6. The cutout into which the suspension bolt can be fitted is formed at the center of the end edge of the locking portion, according to any one of claims 1 to 5. Ceiling suspension hanger for deck plate.