JP2018084063A - Hanger and system ceiling structure using hanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hanger which can be mounted on a ceiling bar with a single operation without requiring screw fixing work or folding work of sides, and in which earthquake resistance of a constructed system ceiling is high.SOLUTION: In a hanger 1, an upper end part is mounted on a hanging bolt 50 suspended from a ceiling slab, and a lower end part is mounted on a vertical piece 2b of a ceiling bar 2. The hanger 1 is constituted by a hanger body 1a and locking claws 33a, 33b. In the hanger body 1a, a cutout part 3 for striding over the vertical piece 2b of the ceiling bar 2 is formed at the lower end part, and the hanger body has a pair of left and right arm parts 21a, 21b in which, when installed astride on the ceiling bar 2, both sides of the cutout part 3 are along the surface and the rear surface of the vertical piece 2b. The locking claws 33a, 33b have the locking claws 33a, 33b which are inserted in locking holes 2d1, 2d2 of the vertical piece 2b and locked in the locking holes 2d1, 2d2 when the arm parts 21a, 21b are along the surface and the rear surface of the vertical piece 2b respectively.SELECTED DRAWING: Figure 2

Description

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

  Conventionally, in a 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 lifting projection provided at the upper end of the vertical piece. The ceiling structure of the system ceiling is constructed by sandwiching and fixing the hanging protrusions of the ceiling bar with a hanger fixed to a suspension bolt suspended from the ceiling slab, and combining the ceiling bars attached to the hanger in a lattice shape And the system ceiling was completed by fitting a ceiling plate into this framework structure (Patent Document 1).

The hanger used for the ceiling of this system has a plate-like hanger body provided with a hook-like portion that holds one side of the ridge for hanging the ceiling bar at the lower end and the other side of the ridge for hanging. It is comprised with the separate hook metal fitting which has a hook-shaped part holding the side.
A protrusion is provided on the upper end of the hook, and this protrusion is locked in the locking hole of the hanger body, and the protrusion that is locked by screwing the screw attached to the hook to the hanger body at the fulcrum. Based on this principle, the ridges for suspension are firmly clamped from both sides by the hook-shaped portions.

However, the hook-shaped portion of the hanger body and the hook-shaped portion of the hook metal fitting are merely formed by bending a flat plate into a substantially U-shape, and these hold the protrusions for hanging the ceiling bar. When the ceiling bar and hangers are combined to form a system ceiling framework structure, if the horizontal bar or torsional tensile force acts on the ceiling bar due to strong earthquakes, etc., the screws will loosen. The ridges for hanging the ceiling bar slide in the horizontal direction from between the hook-shaped portions of the hanger. As a result, the frame structure composed of the ceiling bars will be deformed, and the ceiling plate placed on the horizontal piece of the ceiling bar will fall from this deformed part and the system ceiling will collapse. It was.
In addition, the tightening operation using the screws not only takes time, but also there are variations in the tightening method of the screws, and the screws loosen from the weakly tightened portion, which easily causes the system ceiling to collapse.

On the other hand, the invention described in Prior Art Document 2 has been proposed as a technique for improving the strength of the hanger itself.
The invention described in Patent Document 2 is provided with two L-shaped cut-and-raised claws opposite to the hanger, and a cut-and-raised claw insertion hole through which an L-shaped cut and raised claw can be inserted into a vertical piece of the T-bar. Opened on the upper side of the nail insertion hole, provided with a narrow locking hole into which the base of the cut and raised nail enters, cut and raised the L-shaped cut and raised nail, inserted it into the nail insertion hole, then lowered the T bar and raised and raised the nail The T-bar is attached to the hanger by cutting and raising the base portion of the claw and moving it from the claw insertion hole to a narrow locking hole and locking the tip portion bent into the L shape of the claw to the locking hole. .

  In this invention, the L-shaped cut-and-raised claw in the opposite direction is locked in the narrow locking hole as described above. Therefore, although the construction is simple, the T-bar is rotated in the vertical and horizontal rotation directions depending on how the earthquake shakes. Shake and raise the claw up and down between the locking hole and the claw insertion hole, and if it receives a rolling motion during this time, the above-mentioned locking is released and the claw insertion hole is cut and raised and falls off the claw. There was a problem that the T-bar dropped.

  In contrast to this, an invention has been proposed in which a hanger is separately provided with a cut-and-raised piece and the T-bar suspension protrusion is pressed from above, but the cut-and-raised piece is operated after the locking operation as described above. The operator has to wake up and hold down the ridges for suspension from above, and there is a problem that a heavy burden is placed on the operator due to the high place work of the ceiling, similar to the fixing work by screw fixing.

Japanese Utility Model Publication No. 61-32022 JP 2004-197471 A

  The main object of the present invention is to use a hanger and a member that can be attached to a ceiling bar with one touch without requiring a screw fixing work, a claw or a side bending work, and the constructed system ceiling has high earthquake resistance. It is to provide a system ceiling structure.

The invention described in claim 1
An upper end is attached to a suspension bolt 50 suspended from a ceiling slab, and a 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. A hanger 1 attached to the vertical piece 2b of the ceiling bar 2 constituted by a horizontal piece 2c for use,
A notch 3 is formed at the lower end so as to straddle the vertical piece 2b of the ceiling bar 2, and when straddling the ceiling bar 2, a pair of left and right arms 21a and 21b along which both sides of the notch 3 extend along the front and back of the vertical piece 2b, respectively. The hanger body 1a,
When the arm portions 21a and 21b are respectively placed along the front and back of the vertical piece 2b, they are provided on the arm portions 21a and 21b, inserted into the locking holes 2d1 and 2d2, and locked to the locking holes 2d1 and 2d2. It is comprised by the latching claw 33a * 33b.

  With the above configuration, when an earthquake shake is input to the hanger 1, the locking claws 33 a and 33 b are inserted into the locking holes 2 d 1 and 2 d 2 even if the ceiling bar 2 is greatly shaken in the horizontal direction by front and rear, right and left and rotation. Therefore, there is no deviation between the ceiling bar 2 and the hanger 1. Since 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 to the locking holes 2d1 and 2d2 from the front and rear 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 and raising 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 of the vertical piece 2b. Engagement with the claw tips of the locking claws 33a and 33b protruding to the opposite side of the arm portions 21a and 21b with respect to the vertical piece 2b when locked along the hole edges of the locking holes 2d1 and 2d2, respectively. It becomes the toe 35a * 35b, It is characterized by the above-mentioned.

  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 damaged unless the locking claws 33a and 33b are broken and fall off from the locking holes 2d1 and 2d2. There is no such thing as the ceiling bar 2 coming off.

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

  As a result, even when vertical vibrations are input in addition to horizontal vibrations, the concave grooves 22a and 22b hold the protruding protrusions 2a from the front and back, so that they are also great for vertical vibrations. Indicates resistance.

Invention of Claim 4 is a system ceiling structure using the hanger 1 of Claim 1,
Suspension bolts 50 suspended from the ceiling slab;
A ceiling bar 2 provided with a horizontal piece 2c on the lower side of the vertical piece 2b;
The hanger 1 according to claim 1, wherein an upper end side is attached to the suspension bolt 50, and a lower end portion is straddled across the vertical piece 2 b of the ceiling bar 2 at the notch portion 3;
A system ceiling structure composed of a ceiling plate 4 attached to the horizontal piece 2c,
One arm portion 21a is disposed along the front side of the vertical piece 2b, and the other arm portion 21b is disposed along the back 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 to the locking hole 2d1, and the locking claw 33b of the other arm portion 21b is locked to the locking hole of the vertical piece 2b. It is inserted into 2d2 and is locked in the locking hole 2d2.

Invention of Claim 5 is a system ceiling structure using the hanger 1 of Claim 3,
Suspension bolts 50 suspended from the ceiling slab;
A ceiling bar 2 in which a horizontal piece 2c is provided on the lower side of the vertical piece 2b, and a protruding protrusion 2a is provided on the upper side of the vertical piece 2b;
The hanger 1 according to claim 3, wherein an upper end side is attached to the suspension bolt 50, and a lower end portion is straddled across the vertical piece 2b of the ceiling bar 2 at the notch portion 3,
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 hanging protrusion 2a, and the other arm portion 21b is fitted. The groove 22b of the other arm portion 21b is fitted to the back side of the ridge 2a for suspension while being 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 to the locking hole 2d1, and the locking claw 33b of the other arm portion 21b is locked to the locking hole of the vertical piece 2b. It is inserted into 2d2 and is locked in the locking hole 2d2.

As a result, when the hanger 1 is mounted on the ceiling bar 2, the lower end of the hanger 1 is straddled from the top of the ceiling bar 2 at the notch 3, and the hanger 1 is rotated as it is, so that the locking claws 33a and 33b are engaged. The locking claws 33a and 33b are returned to the locking holes 2d1 and 2d2 and are locked into the locking holes 2d1 and 2d2.
When the locking claws 33a and 33b are provided by cutting and raising from the claw members 31a and 31b provided on the arm portions 21a and 21b or by bending the claw members 31a and 31b, the locking claws 33a and 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 mounted on the ceiling bar 2 at a high place such as a ceiling portion by only rotating the hanger 1 without using a tool or a fastener such as a screw.

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 mounts the hanger of FIG. 1 to a ceiling bar. It is a front view which shows the usage condition of the hanger of FIG. FIG. 4 is a right side view of FIG. 3. FIG. 4 is a plan view of FIG. 3. It is a top view which shows the state to mount | wear of FIG.

  Hereinafter, the present invention will be described in detail according to illustrated embodiments. The hanger 1 shown in FIGS. 1 and 2 is for suspending and fixing a substantially inverted T-shaped ceiling bar 2 supporting a ceiling plate 4 to a suspension bolt 50 attached to a ceiling slab in a 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. And the upper side of the vertical piece 2b is provided with a ridge 2a for suspension with a width larger than that of the vertical piece 2b over the entire length as necessary. In the following examples, the case where the protruding protrusion 2a is provided will be described as a representative example.

The vertical piece 2b of the ceiling bar 2 is provided with vertically-long rectangular locking holes 2d1 and 2d2 with a predetermined interval S2 (see FIG. 2). An interval S2 between the locking holes 2d1 and 2d2 is the same width as an interval S1 between insertion ends 34a and 34b of locking claws 33a and 33b described later. Although not shown, the ceiling bar 2 includes a long main ceiling bar and a short sub main ceiling bar that is orthogonal to the main bar and is disposed between the main ceiling bars at regular intervals. The abutting end of the main ceiling bar with respect to the side surface of the main ceiling bar is connected in an orthogonal state by a connection fitting. The hanger 1 of the present invention can be attached to any ceiling bar 2.
The formation position of the pair of locking holes 2d1 and 2d2 is formed at a position away from the orthogonal position where they are orthogonal to each other. A plurality of pairs of locking holes 2d1 and 2d2 can be provided in one ceiling bar 2.

As the ceiling board 4, for example, a rock wool makeup sound absorbing board having a square or rectangular shape in plan view is used. However, the ceiling board 4 is not limited to this, and a plaster board, a wooden board, or the like can be used.
The ceiling plate 4 may be mounted on the horizontal piece 2c of the ceiling bar 2 for construction, or may be used by inserting the horizontal piece 2c into a groove provided on the side surface of the ceiling plate 4.

The hanger 1 includes a hanger body 1a and a pair of left and right claw members 31a and 31b.
The hanger body 1a includes a hanging portion 10 formed by bending a plate material, and a pair of left and right arm portions 21a and 21b screwed to the hanging portion 10. In the illustrated embodiment, the suspension portion 10 and the pair of left and right arm portions 21a and 21b are configured separately, but may be configured integrally. Hereinafter, the case of separate bodies will be described.

  The suspension portion 10 includes a horizontal suspension plate portion 12 having a suspension bolt hole 12a formed in the center thereof, a vertical suspension plate portion 13 obtained by bending one end of the horizontal suspension plate portion 12, and a suspension bolt from the vertical suspension plate portion 13. The arm suspension plate 14 that is suspended from the lower end of the inclined suspension plate portion 14 that extends directly below the hole 12a and that has the attachment surface 11a to which the arm portions 21a and 21b are attached coincides with the center of the suspension bolt hole 12a. It is comprised with the part 11 and the rib board part 15 provided in these sides. The arm mounting plate portion 11 is formed with a pair of nut holes for screwing the arm portions 21a and 21b.

  Each of the arm portions 21a and 21b is formed with a round hole, and is mounted from the lower edges of the mounted portions 23a and 23b that are screwed to the mounting surface 11a using the round holes. Arm vertical pieces 25a and 25b. At the upper ends of the arm vertical pieces 25a and 25b along the lower edges of the attached portions 23a and 23b, the arm vertical pieces 25a and 25b are bent in a U-shape to form concave grooves 22a and 22b. The inner dimensions of the concave grooves 22a and 22b are formed at a height and a depth at which the lifting protrusion 2a is fitted. The concave grooves 22a and 22b are provided so as to open in the opposite direction.

When the arm portions 21a and 21b are screwed to the mounting surface 11a of the suspension portion 10, the opposing inner sides of the portions where the arm vertical pieces 25a and 25b and the recessed grooves 22a and 22b are formed are cut out in an L shape so that 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 sides (sides opposite to the opposed inner sides) of the arm vertical pieces 25a and 25b including the concave grooves 22a and 22b extend outward from the outer vertical side of the arm mounting plate portion 11, and the concave grooves 22a and 22b The length is formed to be long.
In the above embodiment, the suspension part 10 and the pair of left and right arms 21a and 21b are screwed with screws 40, but welding, brazing, bonding or other joining may be used.

Since the claw members 31a and 31b are formed of, for example, a stainless steel plate or a spring steel plate having spring properties with respect to the hanger body 1a formed of a normal steel plate or a hard resin, in the embodiment of FIGS. The parts 21a and 21b are formed separately. The claw members 31a and 31b shown in the embodiment of FIGS. 1 and 2 are formed by bending a spring plate material. From the fixed portions 31a1 and 31b1 attached to the arm vertical pieces 25a and 25b, the fixed portions 31a1 and 31b1. The claw bodies 32a and 32b are bent at right angles, and the locking claws 33a and 33b are bent at an acute angle from the claw bodies 32a and 32b. The front ends 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 the opposite directions by screwing at 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 claw body 32a is the opening of the concave groove 22a of the claw member 31a to which the claw body 32a is attached. And the protruding direction of the other claw body 32b is the opening direction of the 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 main bodies 32a and 32b respectively face the corresponding concave grooves 22a and 22b.
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 main bodies 32a and 32b are cut and raised as shown in FIGS. May be formed. The front ends (locking ends 35a and 35b) of the locking claws 33a and 33b may be cut-off squares or rounded arcs.

  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 suspension bolts 50 suspended from the ceiling slab at predetermined intervals are inserted into the suspension bolt holes 12a formed in the horizontal suspension plate portion 12 of the hanger 1 and suspended. The hanger 1 is fixed to a predetermined height of the suspension bolt 50 by screwing the nut 51 onto the bolt 50 (see FIG. 2). The height can be adjusted by appropriately moving the attachment position of the nut 51 up and down.

Next, the mounting position of the hanger 1 with respect to the ceiling bar 2, that is, the intermediate position between the pair of locking holes 2 d 1 and 2 d 2 provided in the vertical piece 2 b, is provided on the notch 3 of the hanger 1 suspended by the suspension bolt 50. The vertical piece 2b of the ceiling bar 2 is inserted from below. The hanger 1 is rotated at the place where the upper end of the hanging protrusion 2a of the ceiling bar 2 hits 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 locking hole 2d1 is inserted and locked in the straddling state, the hanger 1 in the straddling state is rotated with the one locking hole 2d1 as a fulcrum, and the other engagement (The corresponding locking claw 33b may be inserted and locked into the stop hole 2d2.)
At this time, since the opening width H1 of the locking claws 33a and 33b with respect to the claw main bodies 32a and 32b is larger than the opening width H2 of the locking holes 2d1 and 2d2, the locking claws 33a and 33b are engaged with the locking holes 2d1 and 2d2. Is pushed and bent by the hole edge, and returns to the original opening width H1 when passing through the locking holes 2d1 and 2d2, and the locking edges 35a and 33b of the locking claws 33a and 33b are connected to the edge of the locking holes 2d1 and 2d2. 35b is locked. When the locking ends 35a and 35b are square, the entire tip comes into contact, and in the case of an arc, they come into contact at one point on the tip.

At this time, one arm portion 21a of the hanger 1 mounted is in 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 of the hanging protrusion 2a of the ceiling bar 2 is fitted into the recessed groove 22a of the arm portion 21a, and the opposite side surface side of the hanging protrusion 2a is the recessed groove 22b of the arm portion 21b. Fit into.
That is, as shown in FIGS. 5 and 6, one side surface of the suspending projection 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 the ridge 2a comes into contact with the side of the groove 22a into the groove 22a), the locking claw 33a of the arm portion 21a passes over the locking hole 2d1 and is locked from the opposite side of the vertical piece 2b. 2b is sandwiched from both sides.
Then, the side surface on the opposite side of the ridge 2a for suspension is fitted into the groove 22b of the arm portion 21b, and the side surface on the opposite side of the vertical piece 2b (the groove on the ridge 2a for suspension) 22b, the locking claw 33b of the arm portion 21b is locked from one side of the vertical piece 2b beyond the locking hole 2d2 to sandwich the vertical piece 2b. The depth of fitting into the concave grooves 22a and 22b is about half of the width of the ridge 2a for suspension.
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 symmetric with respect to the mounting position as described above, and the description thereof is omitted. To do.

By repeating such operations, a plurality of long main ceiling bars 2 are suspended from the slab at a certain height by a plurality of hangers 1, and a sub-ceiling bar (not shown) is orthogonally crossed. Arranged at predetermined intervals, the ends thereof are fixed to the main ceiling bar 2, and the ceiling bars are assembled into 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 system ceiling construction procedure is not limited to the above method, and depending on the structure of the ceiling plate 4, the system ceiling may be assembled while inserting a horizontal piece into the groove 4a on the side surface of the ceiling plate 4, as shown in FIG.

When the system ceiling constructed as described above is subjected to a large shaking such as itself, the system ceiling swings up and down, front and rear, right and left, and in the rotational direction.
The hanger 1 is point-symmetric with respect to the vertical piece 2b of the ceiling bar 2 and is sandwiched by the locking claws 33a and 33b and the arm portions 21a and 21b from the front and back of the hanger 1 so that the locking claws 33a and 33b are damaged. Thus, as long as it does not detach from the locking holes 2d1 and 2d2, it exhibits seismic resistance against horizontal shaking in the front-rear and left-right directions and in the rotational direction. The concave grooves 22a and 22b, in which the hanging protrusions 2a are fitted point-symmetrically from the front and back, also contribute to the improvement of the earthquake resistance against the horizontal shaking.
With respect to vertical shaking, the concave grooves 22a and 22b fitted in the lifting protrusions 2a symmetrically with respect to the vertical direction from the front and back sides with no gaps contribute to earthquake resistance.
If the height of the claw bodies 32a and 32b is substantially equal to the locking holes 2d1 and 2d2, the claw body 32a and 32b will contact with the vertical movement with a slight gap between the locking holes 2d1 and 2d2. However, it contributes to improving earthquake resistance against vertical shaking.

  As described above, in the mounted state, the arm portions 21a, 21b, which are arranged so that the arm portions 21a, 21b are point-symmetrical along the front and back of the vertical piece 2b of the ceiling bar 2 and are inserted into the locking holes 2d1, 2d2, respectively. Since the engaging claw 33a / 33b is fitted on the opposite side of 21b, and the lifting protrusion 2a is point-symmetrically fitted from the front and back to the concave grooves 22a / 22b, the front / rear / left / right and rotational directions In addition, it can withstand any shaking in the vertical direction.

  In the above case, the ridge 2a for suspension is provided on the ceiling bar 2 and the grooves 22a and 22b are provided on the arm portions 21a and 21b. If 2a is not provided, the grooves 22a and 22b may not be provided.

H1: Separation width (opening width) of the locking claw, H2: opening width of the locking hole, S1: interval between the insertion ends of the locking claw, S2: interval between the 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, 2d2: Locking hole, 3: Notch, 4: Ceiling plate, 4a: Groove, 10: Hanging part, 11: Arm attachment plate part, 11a: Attachment surface, 12: Horizontal suspension plate part, 12a: Hole for suspension bolt, 13: Vertical suspension plate part, 14: Inclined suspension 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 The locking end, 40: screw, 50: hanger rod, 51: nut.

Claims (5)

The upper end is attached to a suspension bolt suspended from the ceiling slab, and the lower end is formed of a vertical piece having a pair of locking holes and a lower piece of the vertical piece, and a horizontal piece for attaching the ceiling plate. A hanger attached to the vertical piece of the ceiling bar,
A hanger body in which a notch portion is formed at the lower end portion over the vertical piece of the ceiling bar, and both sides of the notch portion are a pair of left and right arms 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 each vertical piece, the arm portion is configured to include a locking claw provided on the arm portion and inserted into the locking hole and locked to the locking hole. Hanger to do.   The locking claw is provided by cutting and raising from the claw member provided in the arm part or by bending the claw member, and when the arm part is disposed along the front and back of the vertical piece, the arm is opposed to the vertical piece. The hanger according to claim 1, wherein a toe of a locking claw protruding to the opposite side of the portion becomes a locking end that locks to a hole edge of the locking hole.   For the ceiling bar provided with a ridge for suspension on the upper side of the vertical piece, a groove is provided in the arm portion into which the ridge for suspension is fitted from the front, and a groove that is fitted from the back is provided in the arm portion. The hanger according to claim 1 or 2, wherein the hanger is formed. Suspension bolts suspended from the ceiling slab,
A ceiling bar with a horizontal piece at the bottom of the vertical piece;
The hanger according to claim 1, wherein an upper end side is attached to the suspension bolt, and a lower end portion is straddled across a vertical piece of the ceiling bar at a notch portion,
A system ceiling structure composed of a ceiling plate attached to the horizontal piece,
One arm portion is disposed along the front side of the vertical piece, and the other arm portion is disposed along the back of the vertical piece,
The locking claw of one arm part is inserted into the locking hole of the vertical piece and locked to the locking hole, and the locking claw of the other arm part is inserted into the locking hole of the vertical piece to enter the locking hole. System ceiling structure characterized by being locked. In the system ceiling structure using the hanger of claim 3,
Suspension bolts suspended from the ceiling slab,
A ceiling bar provided with a horizontal piece on the lower side of the vertical piece, and a protrusion for suspension on the upper side of the vertical piece;
The hanger according to claim 3, wherein an upper end side is attached to the suspension bolt, and a lower end portion is straddled across a vertical piece of the ceiling bar at a notch portion,
A system ceiling structure composed of a ceiling plate attached to the horizontal piece,
One arm portion is disposed along the front side of the vertical piece, and the groove of one arm portion is fitted to the front side of the hanging protrusion, and the other arm portion is along the back side of the vertical piece. And the recessed groove of the other arm part is fitted to the back side of the protruding protrusion for suspension,
The locking claw of one arm part is inserted into the locking hole of the vertical piece and locked into the locking hole, and the locking claw of the other arm part is inserted into the locking hole of the vertical piece and engaged with the locking hole. System ceiling structure characterized by being stopped.

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