JP6778090B2 - Hanger and system ceiling structure using the hanger - Google Patents

Description

The present invention relates to a hanger that is attached to a hanging bolt and can be attached to a ceiling bar with one touch without screws or tools to form a system ceiling, and a system ceiling structure using the hanger.

Conventionally, in the system ceiling, a ceiling bar having a substantially inverted T-shaped cross section composed of a horizontal piece, a vertical piece erected from the horizontal piece, and a hanging ridge provided at the upper end of the vertical piece. The ceiling bar is sandwiched and fixed with a hanger fixed to a hanging bolt suspended from the ceiling slab, and the ceiling bars attached to the hanger are combined in a grid pattern to form the framework structure of the system ceiling. The system ceiling was completed by forming a ceiling plate and fitting a ceiling plate into this framework structure (Patent Document 1).

The hangers used for this system ceiling are a plate-shaped hanger body provided with a hook-shaped portion at the lower end that holds one side of the hanging ridge of the ceiling bar, and the other side of the hanging ridge. It is composed of a separate hook fitting having a hook-shaped portion that holds the side.
A protrusion is provided at the upper end of the hook metal fitting, and this protrusion is locked in the locking hole of the hanger body, and the screw attached to the hook metal fitting is screwed into the hanger body to use the locked protrusion as a fulcrum. Based on this principle, the suspension protrusions are firmly sandwiched by the hook-shaped portions from both sides.

However, the hook-shaped part of the hanger body and the hook-shaped part of the hook metal fitting are merely formed by bending a flat plate in a substantially U-shape, and by these, the ridges for suspending the ceiling bar are sandwiched. , When the ceiling bar and the hanger are combined to form the framework structure of the system ceiling, the screw loosens when the ceiling bar is subjected to horizontal or twisting tensile force due to rolling caused by a strong earthquake or the like. The hanging ridges on the ceiling bar will now slide horizontally from between the hooks on the hanger. As a result, the framework structure composed of the ceiling bar is deformed, and the ceiling plate placed on the horizontal piece of the ceiling bar may fall from this deformed part and the system ceiling may collapse. It was.
Not only does the tightening work with the screws take time, but there are variations in the tightening method of the screws, and the screws are loosened from the weakly tightened part, which tends to cause the system ceiling to collapse.

On the other hand, as a technique for improving the strength of the hanger itself, the invention described in Prior Art Document 2 has been proposed.
In the invention described in Patent Document 2, two L-shaped cut-up claws in opposite directions are provided on the hanger, and a cut-up claw insertion hole into which an L-shaped cut-up claw can be inserted into a vertical piece of a T-bar, and this cut-up claw are provided. An opening is made on the upper side of the nail insertion hole to provide a narrow locking hole into which the base of the cut-up nail enters, and after inserting the L-shaped cut-up nail into the cut-up nail insertion hole, lower the T-bar to cut-up nail. The T-bar is attached to the hanger by moving the base of the claw from the claw insertion hole to a narrow locking hole and locking the L-shaped tip of the claw in the locking hole. ..

In the present invention, as described above, the L-shaped cut-up claw in the opposite direction is locked in the narrow locking hole. Therefore, although the construction is easy, the T-bar moves in the vertical and horizontal rotation directions depending on how the earthquake sways. The claws that sway and cut up move up and down between the locking hole and the claw insertion hole, and if they are shaken during this time, the lock may be released and the claw insertion hole may fall off from the claws. Then, there was a problem that the T-bar fell.

On the other hand, an invention has been proposed in which a separate cut-up piece is provided on the hanger so that the hanging ridge of the T-bar is pressed from above, but the cut-up piece is worked after the above-mentioned locking work. It is necessary for a person to wake up and press the hanging ridge from above, and there is a problem that a heavy burden is placed on the worker in the high-altitude work such as the ceiling as in the fixing work by fixing the screws.

Jikkensho 61-32022 Gazette Japanese Unexamined Patent Publication No. 2004-197471

A main object of the present invention is to use a hanger and its members having high earthquake resistance of the constructed system ceiling, which can be attached to the ceiling bar with one touch without requiring screw fixing work or bending work of claws or sides. To provide a system ceiling structure.

The invention according to claim 1
The upper end is attached to a hanging bolt 50 suspended from the ceiling slab, and the lower end is provided on a vertical piece 2b having a pair of locking holes 2d1 and 2d2 and a lower side of the vertical piece 2b to attach the ceiling plate 4. A hanger 1 attached to the vertical piece 2b of the ceiling bar 2 composed of the horizontal piece 2c for use.
A notch 3 straddling the vertical piece 2b of the ceiling bar 2 is formed at the lower end portion, and a pair of left and right arm portions 21a and 21b on both sides of the notch 3 along the front and back sides of the vertical piece 2b when straddling the ceiling bar 2 are formed. Hanger body 1a and
When the arm portions 21a and 21b are placed along the front and back sides of the vertical piece 2b, they are provided in the arm portions 21a and 21b, inserted into the locking holes 2d1 and 2d2, and locked in the locking holes 2d1 and 2d2. It is characterized in that it is composed of locking claws 33a and 33b.

With the above configuration, when the shaking of an earthquake is input to the hanger 1, the locking claws 33a and 33b are inserted into the locking holes 2d1 and 2d2 even if the ceiling bar 2 shakes significantly in the horizontal direction due to front-back, left-right and rotation. Since they are locked together, the ceiling bar 2 and the hanger 1 do not deviate from each other. The vertical piece 2b of the ceiling bar 2 is sandwiched between the arm portions 21a and 21b and the locking claws 33a and 33b locked in the locking holes 2d1 and 2d2 from the front and back of the groove. Has great resistance to shaking.

The invention according to claim 2 is an example of the "locking claws 33a and 33b" of the hanger 1 according to claim 1.
The locking claws 33a and 33b are provided by cutting up from the claw members 31a and 31b provided on the arm portions 21a and 21b or by bending the claw members 31a and 31b, and the arm portions 21a and 21b are provided on the front and back surfaces of the vertical piece 2b. When arranged along each of them, the toes of the locking claws 33a and 33b protruding on the opposite sides of the arm portions 21a and 21b with respect to the vertical piece 2b are locked to the hole edges of the locking holes 2d1 and 2d2. It is characterized in that the toes are 35a and 35b.

In the above configuration, the locking claws 33a and 33b are locked to the vertical piece 2b in a fitted state, and the hanger 1 is not provided unless the locking claws 33a and 33b are damaged and fall out of the locking holes 2d1 and 2d2. The ceiling bar 2 does not come off from the ceiling bar 2.

The invention according to claim 3 relates to the hanger 1 according to claim 1 or 2.
With respect to the ceiling bar 2 provided with the hanging ridge 2a on the upper side of the vertical piece 2b, a concave groove 22a into which the hanging ridge 2a is fitted from the front is provided in the arm portion 21a and is fitted from the back. The concave groove 22b is formed in the arm portion 21b.

As a result, even when vertical sway is input in addition to horizontal sway, the concave grooves 22a and 22b hold the suspension ridges 2a from the front and back, so that the vertical sway is also large. Shows resistance.

The invention according to claim 4 is a system ceiling structure using the hanger 1 according to claim 1.
Suspension bolts 50 suspended from the ceiling slab and
A ceiling bar 2 having a horizontal piece 2c on the lower side of the vertical piece 2b,
The hanger 1 according to claim 1, wherein the upper end side is attached to the hanging bolt 50 and the lower end portion is straddled over the vertical piece 2b of the ceiling bar 2 at the notch 3.
It is a system ceiling structure composed of a ceiling plate 4 attached to the horizontal piece 2c.
One arm portion 21a is arranged along the front side of the vertical piece 2b, and the other arm portion 21b is arranged along the back side of the vertical piece 2b.
The locking claw 33a of one arm portion 21a is inserted into the locking hole 2d1 of the vertical piece 2b and locked in the locking hole 2d1, and the locking claw 33b of the other arm portion 21b is the locking hole of the vertical piece 2b. It is characterized in that it is inserted into 2d2 and locked in the locking hole 2d2.

The invention according to claim 5 is a system ceiling structure using the hanger 1 according to claim 3.
Suspension bolts 50 suspended from the ceiling slab and
A ceiling bar 2 provided with a horizontal piece 2c on the lower side of the vertical piece 2b and a ridge 2a for hanging on the upper side of the vertical piece 2b.
The hanger 1 according to claim 3, wherein the upper end side is attached to the hanging bolt 50 and the lower end portion is straddled over the vertical piece 2b of the ceiling bar 2 at the notch 3.
It is a system ceiling structure composed of a ceiling plate 4 attached to the horizontal piece 2c.
One arm portion 21a is arranged along the front side of the vertical piece 2b, and the concave groove 22a of one arm portion 21a is fitted into the front side of the suspension projection 2a, and the other arm portion 21b is fitted. It is arranged along the back side of the vertical piece 2b, and the concave groove 22b of the other arm portion 21b is fitted to the back side of the hanging ridge 2a.
The locking claw 33a of one arm portion 21a is inserted into the locking hole 2d1 of the vertical piece 2b and locked in the locking hole 2d1, and the locking claw 33b of the other arm portion 21b is the locking hole of the vertical piece 2b. It is characterized in that it is inserted into 2d2 and locked in the locking hole 2d2.

As a result, at the mounting position of the hanger 1 on the ceiling bar 2, the lower end of the hanger 1 is straddled from above the ceiling bar 2 by the notch 3, and when the hanger 1 is rotated as it is, the locking claws 33a and 33b are engaged. It is pushed into the stop holes 2d1 and 2d2, and the locking claws 33a and 33b return to lock in the locking holes 2d1 and 2d2 when they are completely inserted.
When the locking claws 33a / 33b are provided by cutting up from the claw members 31a / 31b provided on the arm portions 21a / 21b or by bending the claw members 31a / 31b, the locking claws 33a / 33b are locked. The ends 35a and 35b are fitted into the hole edges of the locking holes 2d1 and 2d2 and locked in a killing manner.
That is, the hanger 1 can be attached to the ceiling bar 2 only by rotating the hanger 1 without using tools or fasteners such as screws for work at a high place such as the ceiling.

It is a perspective view which shows the hanger of one Example of this invention. It is a perspective view which shows the state which the hanger of FIG. 1 is attached to a ceiling bar. It is a front view which shows the usage mode of the hanger of FIG. It is a right side view of FIG. It is a top view of FIG. It is a top view which shows the mounting state of FIG.

Hereinafter, the present invention will be described in detail according to the illustrated examples. The hanger 1 shown in FIGS. 1 and 2 is for suspending and fixing a substantially inverted T-shaped ceiling bar 2 supporting the ceiling plate 4 to a hanging bolt 50 attached to the ceiling slab in the system ceiling. is there.

The ceiling bar 2 is a long member having a substantially inverted T-shaped cross section in which the horizontal piece 2c extends over the entire length of the lower side on both sides of the lower side of the vertical piece 2b. A suspension ridge 2a having a width larger than that of the vertical piece 2b is provided on the upper side of the vertical piece 2b as necessary over the entire length thereof. In the following embodiment, a case where the suspension ridge 2a is provided will be described as a typical example.

Vertically long rectangular locking holes 2d1 and 2d2 are bored in the vertical piece 2b of the ceiling bar 2 at a predetermined interval S2 (see FIG. 2). The distance S2 between the locking holes 2d1 and 2d2 is the same width as the distance S1 between the insertion ends 34a and 34b of the locking claws 33a and 33b, which will be described later. Although not shown, the ceiling bar 2 has a long main ceiling bar and a short sub-main ceiling bar orthogonal to the main ceiling bar and arranged between the main ceiling bars at regular intervals. The abutting ends of the main ceiling bar with respect to the side surface of the main ceiling bar are connected in an orthogonal state by connecting fittings. The hanger 1 of the present invention can be attached to any ceiling bar 2.
The formation positions of the pair of locking holes 2d1 and 2d2 are formed at positions away from the orthogonal positions where the two are orthogonal to each other. It is also possible to provide a plurality of pairs of locking holes 2d1 and 2d2 in one ceiling bar 2.

As the ceiling board 4, for example, a rock wool decorative sound absorbing board having a square or rectangular plan view is used, but of course, the ceiling board 4 is not limited to this, and a gypsum board, a wooden board, or the like can be used.
The ceiling plate 4 has various forms such as being placed on the horizontal piece 2c of the ceiling bar 2 for construction, or the horizontal piece 2c being inserted into a groove provided on the side surface of the ceiling plate 4.

The hanger 1 is composed of a hanger body 1a and a pair of left and right claw members 31a and 31b.
The hanger body 1a is composed of a hanging holding portion 10 formed by bending a plate material and a pair of left and right arm portions 21a and 21b screwed to the hanging holding portion 10. In the embodiment shown in the figure, the hanging portion 10 and the pair of left and right arm portions 21a and 21b are formed separately, but may be integrally formed. Hereinafter, the case of a separate body will be described.

The suspension holding portion 10 includes a horizontal suspension plate portion 12 in which a suspension bolt hole 12a is bored in the center, a vertical suspension plate portion 13 in which one end of the horizontal suspension plate portion 12 is bent, and a suspension bolt from the vertical suspension plate portion 13. An arm mounting plate that is vertically hung from the lower end of the inclined suspension plate portion 14 that extends directly below the hole 12a, and whose mounting surface 11a for mounting the arm portions 21a and 21b coincides with the center of the suspension bolt hole 12a. It is composed of a portion 11 and a rib plate portion 15 provided on these side sides. The arm mounting plate portion 11 is provided with a pair of nut holes for screwing the arm portions 21a and 21b.

Each of the arm portions 21a and 21b is provided with a round hole and is vertically attached from the lower edge of the attached portion 23a and 23b and the attached portion 23a and 23b screwed to the mounting surface 11a using the round hole. It is composed of the arm vertical pieces 25a and 25b. A concave groove 22a / 22b is provided at the upper end of the arm vertical pieces 25a / 25b along the lower edge of the attached portions 23a / 23b by bending the arm vertical pieces 25a / 25b in a U shape. The inner dimensions of the recessed grooves 22a and 22b are formed at a height and a depth into which the hanging protrusions 2a are fitted. The concave grooves 22a and 22b are provided so as to open in opposite directions.

When the arm portions 21a and 21b are screwed to the mounting surface 11a of the suspension holding portion 10, the opposite inner sides of the formed portions of the arm vertical pieces 25a and 25b and the concave grooves 22a and 22b are cut out in an L shape to form the arm vertical pieces 25a. A notch 3 is formed from 25b to the tip of the lower edge of the arm mounting plate 11.
The outer vertical side (the side opposite to the opposite inner side) of the arm vertical pieces 25a / 25b including the concave grooves 22a / 22b extends outward from the outer vertical side of the arm mounting plate portion 11, and the concave grooves 22a / 22b. It is formed to be long.
In the above embodiment, the suspension holding portion 10 and the pair of left and right arm portions 21a and 21b are screwed together with screws 40, but welding, brazing, adhesion or other joining may be used.

Since the claw members 31a and 31b are formed of, for example, a spring-loaded stainless steel plate or a spring steel plate with respect to the hanger body 1a formed of a normal steel plate or a hard resin, in the examples of FIGS. It is formed separately from the parts 21a and 21b. The claw members 31a and 31b shown in the examples of FIGS. It is composed of claw bodies 32a and 32b bent at a right angle, and locking claws 33a and 33b bent at an acute angle from the claw bodies 32a and 32b. The tips of the locking claws 33a and 33b are the locking ends 35a and 35b, and the bent ends are the insertion ends 34a and 34b.
The separation width (opening width) H1 of the locking ends 35a and 35b with respect to the claw bodies 32a and 32b is larger than the opening width H2 of the slit-shaped locking holes 2d1 and 2d2.

The claw members 31a and 31b are attached to the arm portions 21a and 21b from opposite directions by screwing the fixed portions 31a1 and 31b1. Therefore, the protruding directions of the claw bodies 32a and 32b of the claw members 31a and 31b are opposite to each other, and the protruding direction of one of the claw bodies 32a is the opening of the concave groove 22a of the claw member 31a to which the claw body 32a is attached. The direction of protrusion of the other claw body 32b is the opening direction of the concave groove 22b of the other claw member 31b to which the claw body 32b is attached. Then, the locking claws 33a and 33b folded back at the tips (insertion ends 34a and 34b) of the claw bodies 32a and 32b face the corresponding concave grooves 22a and 22b, respectively.
The locking claws 33a and 33b are formed by bending the spring plate material as described above in FIGS. 1 and 2, but the present invention is not limited to this, and the claw bodies 32a and 32b are cut and raised as shown in FIGS. 3 to 8. May be formed. The tips of the locking claws 33a / 33b (locking ends 35a / 35b) may be a quadrangle with sharp corners or a round arc shape.

Next, a case where a system ceiling is constructed using the hanger 1 of the present invention will be described. When attaching the hanger 1 of the present invention, first, the hanging bolts 50 suspended from the ceiling slab at predetermined intervals are inserted into the hanging bolt holes 12a formed in the horizontal hanging plate portion 12 of the hanger 1 and suspended. By screwing the nut 51 to the bolt 50, the hanger 1 is fixed at a predetermined height of the hanging bolt 50 (see FIG. 2). The height can be adjusted by appropriately raising and lowering the mounting position of the nut 51.

Next, at the mounting position of the hanger 1 with respect to the ceiling bar 2, that is, at the intermediate position of the pair of locking holes 2d1 and 2d2 provided in the vertical piece 2b, the notch 3 of the hanger 1 suspended from the hanging bolt 50 is inserted. Insert the vertical piece 2b of the ceiling bar 2 from below. The hanger 1 is rotated when the upper end of the hanging ridge 2a of the ceiling bar 2 abuts on the inner end of the notch 3, and the locking claws 33a and 33b are inserted into the locking holes 2d1 and 2d2. (Alternatively, the locking claw 33a corresponding to one of the locking holes 2d1 is inserted and locked in the straddling state, and the hanger 1 in the straddling state is rotated around the one locking hole 2d1 as a fulcrum to engage the other. A locking claw 33b corresponding to the stop hole 2d2 may be inserted and locked.)
At this time, since the opening width H1 of the locking claws 33a and 33b with respect to the claw bodies 32a and 32b is larger than the opening width H2 of the locking holes 2d1 and 2d2, the locking claws 33a and 33b have the locking holes 2d1 and 2d2. It is pressed by the hole edge of the hole and bends, and when it passes through the locking holes 2d1 and 2d2, it returns to the original opening width H1, and the locking ends 35a of the locking claws 33a and 33b are placed on the hole edges of the locking holes 2d1 and 2d2. Each of 35b is locked. When the locking ends 35a and 35b are square, the entire tip is in contact, and when the locking ends are arcuate, the tip is in contact at one point.

At this time, one arm portion 21a of the mounted hanger 1 comes into contact with one surface of the vertical piece 2b of the ceiling bar 2 (the surface opposite to the surface with which the locking end 35a is in contact), and the other. The arm portion 21b is in contact with the opposite surface (the surface opposite to the surface with which the locking end 35b is in contact). At the same time, one side surface side of the hanging ridge 2a of the ceiling bar 2 is fitted into the concave groove 22a of the arm portion 21a, and the opposite side surface side of the hanging ridge 2a is the concave groove 22b of the arm portion 21b. It fits in.
That is, as shown in FIGS. 5 and 6, one side surface side of the suspension ridge 2a is fitted into the concave groove 22a of the arm portion 21a, and the arm portion 21a is one side surface of the vertical piece 2b (for suspension). When it comes into contact with the side surface of the ridge 2a on the fitting side into the concave groove 22a), the locking claw 33a of the arm portion 21a is locked from the opposite side of the vertical piece 2b beyond the locking hole 2d1 to be a vertical piece. 2b is sandwiched from both sides.
Then, the side surface of the hanging ridge 2a on the opposite side is fitted into the concave groove 22b of the arm portion 21b, and the arm portion 21b is the opposite side surface of the vertical piece 2b (the concave groove of the hanging ridge 2a). When it comes into contact with the side surface on the fitting side of 22b), the locking claw 33b of the arm portion 21b exceeds the locking hole 2d2 and locks from one side of the vertical piece 2b to sandwich the vertical piece 2b. The fitting depth into the recesses 22a and 22b is about half the width of the suspension projection 2a.
Then, it is clarified that the relationship between the other arm portion 21b, the concave groove 22b, the locking claw 33b, the vertical piece 2b, and the locking hole 2d2 is a point-symmetrical relationship centered on the mounting position, and the description thereof is omitted. To do.

By repeating such work, a plurality of long main ceiling bars 2 are hung from the slab at a certain height position by a plurality of hangers 1, and a sub-ceiling bar (not shown) is provided so as to be orthogonal to the slab. The ceiling bars are arranged at predetermined intervals, and the ends thereof are fixed to the main ceiling bar 2 to assemble the ceiling bar in a lattice structure. Finally, the ceiling plate 4 is placed on the horizontal piece 2c of the main / sub-ceiling bar to form a system ceiling.
The procedure for constructing the system ceiling is not limited to the above method, and depending on the structure of the ceiling plate 4, as shown in FIG. 2, the system ceiling may be assembled while inserting a horizontal piece into the groove 4a on the side surface of the ceiling plate 4.

When a large shake such as oneself is applied to the system ceiling constructed as described above, the system ceiling shakes up and down, front and back, left and right, and in the rotation direction.
Since the hanger 1 is point-symmetrically centered on the mounting position with respect to the vertical piece 2b of the ceiling bar 2 and is sandwiched from the front and back by the locking claws 33a / 33b and the arm portions 21a / 21b, the locking claws 33a / 33b are damaged. As long as it does not separate from the locking holes 2d1 and 2d2, it exhibits earthquake resistance against shaking in the front-back, left-right and horizontal directions in the rotation direction. The concave grooves 22a and 22b in which the suspension protrusions 2a are fitted from the front and back in a point-symmetrical manner also contribute to the improvement of seismic resistance against the above-mentioned horizontal shaking.
With respect to vertical shaking, the recessed grooves 22a and 22b, which are point-symmetrically fitted into the suspension projection 2a from the front and back without any gap in the vertical direction, contribute to earthquake resistance.
If the heights of the claw bodies 32a and 32b are almost equal to those of the locking holes 2d1 and 2d2, the claw bodies 32a and 32b will come into contact with the locking holes 2d1 and 2d2 with a slight gap against vertical shaking. However, it contributes to improving seismic resistance against vertical shaking.

As described above, in the mounted state, the arm portions 21a and 21b are point-symmetrically arranged on the front and back of the vertical piece 2b of the ceiling bar 2 so as to be along the arm portions 21a and 21b, respectively, and are inserted into the locking holes 2d1 and 2d2. The locking claws 33a and 33b on the opposite side of 21b are used to kill and kill, and in addition, the hanging ridges 2a are point-symmetrically fitted into the concave grooves 22a and 22b from the front and back, so that the front, back, left and right and the rotation direction In addition, it can withstand all vertical shaking.

In the above case, the ceiling bar 2 is provided with the suspension ridges 2a, and the arm portions 21a and 21b are provided with the concave grooves 22a and 22b. However, the ceiling bar 2 is provided with the suspension ridges 22a and 22b. If there is no 2a, the concave grooves 22a and 22b may not be provided.

H1: Separation width (opening width) of locking claw, H2: Opening width of locking hole, S1: Spacing of insertion end of locking claw, S2: Spacing between pair of left and right locking holes, 1: Hanger, 1a: Hanger body 2: Ceiling bar, 2a: Suspension ridge, 2b: Vertical piece, 2c: Horizontal piece, 2d1 and 2d2: Locking hole, 3: Notch, 4: Ceiling plate, 4a: Groove, 10: Suspended holding part, 11: Arm mounting plate part, 11a: Mounting surface, 12: Horizontal hanging plate part, 12a: Hole for hanging bolt, 13: Vertical hanging plate part, 14: Inclined hanging plate part, 15: Rib plate part, 21a ・ 21b: Arm part, 22a ・ 22b: Recessed groove, 23a ・ 23b: Attached part, 25a ・ 25b: Arm vertical piece, 31a ・ 31b: Claw member, 31a1 ・ 31b1: Fixed part, 32a ・ 32b: Claw Main body, 33a / 33b: locking claw, 34a / 34b: insertion end, 35a / 35b: locking end, 40: screw, 50: hanging bolt, 51: nut.

Claims (5)

The upper end is attached to a hanging bolt suspended from the ceiling slab, and the lower end is provided with a vertical piece having a pair of locking holes and a horizontal piece for mounting the ceiling plate provided on the lower side of the vertical piece. A hanger that can be attached to the vertical piece of the ceiling bar.
A hanger body in which a notch portion straddling the vertical piece of the ceiling bar is formed at the lower end portion, and both sides of the notch portion form a pair of left and right arm portions along the front and back of the vertical piece when straddling the ceiling bar.
When the arm portion is placed along the front and back of the vertical piece, the arm portion is provided with a locking claw that is inserted into the locking hole and locked in the locking hole. Hanger to do. The locking claw is provided by cutting up from a claw member provided on the arm portion or by bending the claw member, and when the arm portion is arranged along the front and back of the vertical piece, the arm with respect to the vertical piece. The hanger according to claim 1, wherein the tip of the locking claw protruding to the opposite side of the portion serves as a locking end for locking to the edge of the locking hole. For the ceiling bar provided with the suspension ridges on the upper side of the vertical piece, the arm portion is provided with a concave groove into which the suspension ridge is fitted from the front, and the concave groove fitted from the back is provided in the arm portion. The hanger according to claim 1 or 2, wherein the hanger is formed. Suspended bolts hung on the ceiling slab and
A ceiling bar with a horizontal piece on the bottom of the vertical piece,
The hanger according to claim 1, wherein the upper end side is attached to the hanging bolt and the lower end portion is straddled over the vertical piece of the ceiling bar at the notch.
It is a system ceiling structure composed of a ceiling plate attached to the horizontal piece.
One arm is arranged along the front side of the vertical piece and the other arm is arranged along the back of the vertical piece.
The locking claw of one arm is inserted into the locking hole of the vertical piece and locked in the locking hole, and the locking claw of the other arm is inserted into the locking hole of the vertical piece and into the locking hole. A system ceiling structure characterized by being locked. With the system ceiling structure using the hanger of claim 3.
Suspended bolts hung on the ceiling slab and
A ceiling bar with a horizontal piece on the lower side of the vertical piece and a ridge for hanging on the upper side of the vertical piece,
The hanger according to claim 3, wherein the upper end side is attached to the hanging bolt and the lower end portion is straddled over the vertical piece of the ceiling bar at the notch.
It is a system ceiling structure composed of a ceiling plate attached to the horizontal piece.
One arm is arranged along the front side of the vertical piece, the concave groove of one arm is fitted to the front side of the suspension ridge, and the other arm is along the back side of the vertical piece. In addition to being arranged in such a manner, the concave groove of the other arm portion is fitted to the back side of the suspension projection.
The locking claw of one arm is inserted into the locking hole of the vertical piece to lock the locking hole, and the locking claw of the other arm is inserted into the locking hole of the vertical piece to engage the locking hole. A system ceiling structure characterized by being stopped.

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