JP7276834B2 - Ceiling plate fall prevention device and ceiling structure - Google Patents

Description

The present invention relates to a ceiling plate fall prevention device and a ceiling structure. More specifically, a ceiling plate for preventing the ceiling plate from falling in a ceiling structure comprising a ceiling plate, a plurality of support bars for supporting the ceiling plate, and support bar receiving members for connecting and fixing the plurality of support bars. It relates to a fall prevention device and a ceiling structure.

Conventionally, devices such as those described in Patent Documents 1 and 2, for example, are known as ceiling plate fall prevention devices as described above. In Patent Document 1, a sheet to which one end of a wire is connected is provided on the surface of the ceiling plate on the room side (Figs. 5 and 6 of the same document). In Patent Document 2, a penetrating member that penetrates the ceiling plate is provided on the indoor surface of the ceiling plate, and the penetrating member is engaged with a mounting member provided on the back surface of the ceiling plate, and the mounting member is connected to the suspension member with a wire. are connected. However, both methods require screwing and wire connection work at many places, and improvement in workability (workability) has been desired.

JP 2014-173394 A JP 2014-114594 A

In view of such conventional circumstances, it is an object of the present invention to provide a ceiling plate fall prevention device and a ceiling structure that are excellent in workability without impairing the fall prevention function of the ceiling plate.

In order to achieve the above object, the ceiling plate fall prevention device according to the present invention is characterized by a ceiling plate, a plurality of support bars that support the ceiling plate, and a support bar receiving member that connects and fixes the plurality of support bars. In the structure for preventing the ceiling plate from falling in the ceiling structure comprising: is provided with a wedge member whose one end is fitted into a recess formed in the support bar, the wedge member has an operation piece which is operated by an operator and is provided upright on the main body. By pressing the piece, the one end is fitted into the recess, and the end of the contact member is fixed to the support bar.

According to the above configuration, the abutting member is disposed in a direction intersecting the support bar and abuts on the surface of the ceiling panel on the outdoor side. It can prevent the plate from falling off. Moreover, since both ends of the abutment member are fixed to the support bars, the abutment member is held between the support bars simply by fixing both ends of the abutment member. improvement is possible.

Furthermore, by providing (equipping) the wedge member to the contact member, the contact member can be fixed to the support bar by operating the wedge member, so workability is good.

In this case, the wedge member may be attached to the contact member so as to be slidable along its longitudinal direction. Since all you have to do is slide it, workability is extremely high.

Also, one end of the wedge member may be a bent portion formed by folding back an end of the main body portion. As a result, it is preferable to bend the bent portion when fitting one end of the wedge member into the concave portion of the support bar, resulting in good workability. Moreover, since the end portion of the body portion is folded back, it is possible to prevent it from coming off from the concave portion.

A plurality of grooves may be formed on the upper surface of the bent portion at appropriate intervals in the longitudinal direction of the contact member. Versatility can be improved by forming a plurality of grooves according to the shape (depth) of the recess of the support bar. An opening of the concave portion may have a tapered shape, and a tapered fitting portion may be formed at one end of the body portion.

The abutting member may have a hanging portion that extends vertically from the head toward the interior of the room. As a result, the ceiling board can be arranged by bringing the ceiling board into close contact with the drooping portion (butting), and workability is good.

In such a case, a plate-like portion substantially parallel to the head portion may be provided at the lower end of the drooping portion. As a result, the ceiling panel is also supported (held) by the plate-shaped portion, so that the ceiling panel can be further prevented from falling.

On the other hand, the feature of the ceiling plate fall prevention device according to the present invention is that the ceiling structure includes a ceiling plate, a plurality of support bars that support the ceiling plate, and a support bar receiving member that connects and fixes the plurality of support bars. In the structure for preventing the ceiling plate from falling, a contact member is disposed in a direction intersecting the support bar and contacts the surface of the ceiling plate on the outdoor side, and the contact member has an end portion thereof. A wedge member having one end fixed to the support bar is provided, and the wedge member has a screwing portion that is screwed to the support bar and is provided upright on the main body. By fixing the wedge member to the support bar with the screw fastening portion, the ceiling board is held between the abutting member and the support bar, so that the ceiling board can be prevented from falling off.

In order to achieve the above object, the ceiling structure according to the present invention is characterized by: a ceiling plate; a plurality of support bars that support the ceiling plate; a support bar receiving member that connects and fixes the plurality of support bars; In the configuration provided with a ceiling plate fall prevention device for preventing the plate from falling, the ceiling plate fall prevention device is arranged in a direction intersecting the support bar and contacts the surface of the ceiling plate on the outdoor side. The contact member has a wedge member whose one end is fitted into a recess formed in the support bar. When the operation piece is pressed, the one end of the abutting member is fitted into the recess, the end of the abutting member is fixed to the support bar, and the ceiling plate is: It is sandwiched between the contact member and the support bar.

In order to achieve the above object, another ceiling structure according to the present invention is characterized by: a ceiling plate; a plurality of support bars that support the ceiling plate; a support bar receiving member that connects and fixes the plurality of support bars; In the structure provided with a ceiling plate fall prevention device for preventing the ceiling plate from falling, the ceiling plate fall prevention device is arranged in a direction intersecting the support bar and contacts the surface of the ceiling plate on the outdoor side. The abutment member has a wedge member, one end of which is fixed to the support bar. The screwing part is screwed to the support bar, the end of the abutment member is fixed to the support bar, and the ceiling plate is connected to the abutment member and the support bar. It is sandwiched by the bar.

According to the features of the ceiling panel fall prevention device and the ceiling structure according to the present invention, it is possible to improve workability without impairing the function of preventing the ceiling panel from falling.

Other objects, configurations and effects of the present invention will become apparent from the following detailed description of the invention.

1 is an upside down view showing an example of a ceiling structure using a ceiling panel fall prevention device according to a first embodiment of the present invention; FIG. FIG. 1b is a cross-sectional view taken along the arrow A in FIG. 1a; It is a B arrow sectional view of FIG. 1a. (a) is a partially enlarged view of a C portion in FIG. 1c, and (b) is a view showing a contact member. (a) is a partially enlarged front view of a portion D in FIG. 1b, and (b) is a view showing a first support bar. (a) is a partially enlarged front view of part E of FIG. 1b, and (b) is a view showing a second support bar. (a) is a partial enlarged view of the vicinity of the frame member of the F section of FIG. 1c, and (b) is a view showing the frame member. It is a figure which shows a wedge member, (a) is a perspective view, (b) is a front view. It is a figure explaining a construction procedure. It is a figure explaining a construction procedure. It is a figure explaining a construction procedure. It is a figure explaining a construction procedure. It is a figure which shows an example of the ceiling structure using the ceiling board fall prevention apparatus which concerns on 2nd embodiment of this invention. FIG. 12 is a partially enlarged cross-sectional view of a G portion of FIG. 11; FIG. 7 is a view corresponding to FIG. 6 showing a wedge member according to a second embodiment; It is a figure equivalent to Fig.2 (a) which shows the modified example of a contact member. FIG. 10 is a diagram showing a modification of the wedge member; FIG. 10 is a diagram showing another modification of the wedge member;

Next, the first embodiment of the invention will be described in more detail with reference to FIGS. 1-10.
A ceiling plate fall prevention device 1 according to the present invention is applied to, for example, a so-called system ceiling 10 as shown in FIGS. 1a to 1c.
As shown in the figure, the system ceiling 10 generally includes a ceiling plate 11, a plurality of support bars 12 that support the ceiling plate 11, and channel materials as support bar receiving members 13 that connect and fix the plurality of support bars 12. (lip channel steel). In the example shown in the figure, the support bars 12 are arranged side by side in a direction X orthogonal to the longitudinal direction Y (line type) with appropriate intervals, and the lighting fixtures L are arranged along the orthogonal direction X (arrangement direction X). is set up. A frame member 14 as shown in FIG.

In the present embodiment, the support bar receiving member 13 is supported by the steel frame beam (H-shaped steel) as the support member 16 via the connection member 15, but the form of the suspension support is limited to this. can't The ceiling material 11 is a plate-shaped member (board, panel) such as a rock wool sound absorbing board or a gypsum board, but the material is not particularly limited.

As shown in FIGS. 1 to 4, the ceiling plate fall prevention device 1 according to the present invention is arranged in a direction (perpendicular direction X) intersecting with the support bar 12, and hits the surface 11a of the outdoor side S1 of the ceiling plate 11. It has an abutting member 2 that makes contact. The ceiling panel fall prevention device 1 according to the present embodiment further includes a wedge member 3 whose one end 3a is fitted into a recess 125 formed in a support bar 12, which will be described later. The abutting member 2 is held between supporting bars 12 , 12 facing each other via the wedge member 3 .

Here, in this embodiment, the support bar 12 consists of a first support bar 12A and a second support bar 12B, as shown in FIGS. 1a-c. The first support bar 12A is used in the middle part of one line of the system ceiling 10 in the arrangement direction X, and the second support bar 12B is used in the end part of the same line. The first and second support bars 12A, 12B are produced by, for example, extrusion molding of an aluminum material.

The first support bar 12A, as shown in FIG. , 122 and a pair of concave portions 125 formed between the upper and lower connecting portions 123 and 124 . Protrusions 128 are erected on the lower surface portion 122 so as to face the side ends of the ceiling plate 11 . The upper surface portion 121 makes surface contact with the lower flange 13 a of the channel material 13 . A side end portion of the ceiling plate 11 is placed on the lower surface portion 122 .

On the other hand, as shown in FIG. 4, the second support bar 12B has the same basic configuration as the first support bar 12A, but the first support bar 12B is provided with each part only on one side instead of being symmetrically paired. Different from 12A. Further, as shown in FIG. 5, the frame member 14 includes a flat portion 14a on which the end portion of the ceiling plate 11 is placed, a fixed portion 14b fixed to the first support bar 12A, the flat portion 14a and the fixed portion 14b. and a connecting portion 14c for connecting the . The connection portion 14c is provided with a projecting portion 14d that projects toward the flat portion 14a (in the vertical direction Z). The ceiling plate 11 is inserted between the flat portion 14a and the projecting portion 14d (gap).

As shown in FIG. 2(b), the contact member 2 has a head portion 21 having a substantially square cross section and a head portion 21 extending downward from the central portion of the head portion 21 (in the vertical direction Z toward the indoor side S2). extending). The head portion 21 has a space 23 in which the wedge member 3 described later is inserted, and an opening 24 communicating with the space 23 is formed in the upper portion of the head portion 21 .

As shown in FIG. 6, the wedge member 3 includes a substantially rectangular plate-like body portion 31, an operation piece 32 erected from the other end 3b of the body portion 31, and one end 3a of the body portion 31 folded back. and a bent piece 34 that is bent toward the operation piece 32 via a bent portion 33 that is formed in the same way. In this embodiment, a groove portion 35 is formed on the upper surface of the bent piece 34 . The contact member 2 and the wedge member 3 are made of plastic, for example.

Next, a procedure for installing the ceiling panel fall prevention device 1 will be described with reference to FIGS.
First, the wedge member 3 is inserted from the end 2a of the contact member 2 into the space 23 from the operation piece 32 side (FIG. 7), and the space of the contact member 2 is opened by operating the operation piece 32 (pressing it with a finger). 23 is slid along the longitudinal direction (arrangement direction X) to bring the bent portion 33 into contact with the end portion 2a (FIG. 8). Although not shown, this is done at both ends of the contact member 2 . Then, the side end portion of the ceiling plate 11 is placed on the lower surface portion 122 of the support bar 12 . The projecting portion 128 erected on the lower surface portion 122 prevents the ceiling plate 11 from being displaced with respect to the longitudinal direction (arrangement direction X) of the contact member 2 .

Next, the abutting member 2 with the wedge member 3 inserted is placed on the edge of the ceiling plate 11 (FIG. 9). At this time, the end portion 2a of the contact member 2 comes into contact with the vicinity of the projecting portion 128 or the lower connection portion 124, so that the positional deviation of the contact member 2 in the longitudinal direction (arrangement direction X) occurs similarly to the ceiling plate 11. prevented. However, the wedge member 3 has not reached the opening 126 of the recess 125 .

Therefore, the operator presses the operating piece 32 of the wedge member 3 toward the opening 126 with a finger to slide the wedge member 3 within the space 23 to fit the bent portion 33 into the recessed portion 125 . At this time, one end 3 a of the wedge member 3 is fitted into the concave portion 125 by bending the bent portion 33 . Thereby, the groove portion 35 of the bent piece 34 and the opening 126 are fitted (FIG. 10). Therefore, the contact member 2 and the support bar 12 are firmly connected via the wedge member 3 . In the vicinity of the wedge member 3 , the lower surface 21 a of the head 21 contacts (presses) the upper surface of the ceiling plate 11 , and the lower surface-shaped portion 122 contacts the lower surface of the ceiling plate 11 . Therefore, the ceiling plate 11 is sandwiched between the head portion 21 and the lower surface portion 122 and will not fall off. In addition, the wedge members 3 at both ends of the contact member 2 can be fitted into the recesses 125, and there is no need to work at multiple locations as in the above-mentioned patent document, and work efficiency is extremely good. In addition, since the ceiling plate 11 is brought into close contact with the drooping portion 22 (butted), the lower end 22a is not exposed from the ceiling plate 11 and the appearance is not spoiled.

Next, a second embodiment of the invention will be described. In addition, the same code|symbol is attached|subjected to the member similar to the above-mentioned embodiment.
In the above-described first embodiment, the abutment member 2 of the ceiling panel fall prevention device 1 has the wedge member 3 at the end 2a thereof, the one end 3a of which fits into the recess 125 of the support bar 12 . However, in the second embodiment, as shown in FIGS. 11 and 12, the abutment member 2 is omitted and the wedge member 3' is used as the ceiling plate fall prevention device 1'.

As shown in FIG. 13, for example, the wedge member 3' includes a contact portion 36 that contacts the surface 11a of the outdoor side S1 of the ceiling plate 11, an extension portion 37 formed continuously from the contact portion 36, a fixing portion 38 provided at the end of the extension portion 37 and fixed to the support bar 12'. The fixing portion 38 is a fitting portion that fits one end of the extension portion 37 into the recess 125 of the support bar 12'. This fitting maintains the horizontal state of the contact portion 36 . The contact portion 36 corresponds to the main body portion 31 of the first embodiment, and the bent portion 33 and the bent piece 34 correspond to the extension portion 37 .

In the first embodiment described above, the groove 35 is formed on the upper surface of the bent piece 34 of the wedge member 3 . On the other hand, in this embodiment, the fitting portion 38 as the fixing portion is composed of the groove portion 35 provided on the upper surface of the extension portion 37 and the second groove portion 39 provided on the lower surface of the contact portion 36 . As shown in FIG. 12, the upper opening edge 126a is fitted into the groove 35 and the lower opening edge 126b is fitted into the second groove 39, so that the connection becomes stronger. It is possible to prevent the plate 11 from coming off.

Finally, mention is made of the possibilities of still other embodiments of the invention. In addition, the same code|symbol is attached|subjected to the member similar to the above-mentioned embodiment.
In the first embodiment described above, the drooping portion 22 of the contact member 2 is formed in a linear shape (plate shape) along the vertical direction Z. As shown in FIG. However, for example, as shown in FIG. 14, a plate-like portion 25 substantially parallel to the head portion 21 may be provided at the lower end of the drooping portion 22'. As a result, the ceiling plate 11 is supported by the plate-like portion 25, and the ceiling plate 11 can be prevented from falling. However, in this case, since the plate-like portion 25 is exposed on the room side S2, the above embodiment is superior in terms of design (beauty).

Also, the shape of the lower end 22a of the drooping portion 22 is not limited to being flat as in the above-described embodiment. For example, the lower end 22a may be hemispherical or sharp.

In the above-described first embodiment, the line-type system ceiling 10 in which the support bars 12 are arranged side by side in the direction X orthogonal to the longitudinal direction Y at appropriate intervals has been described as an example. However, it is possible to apply the present invention.

The shape and structure of each member such as the contact member 2, the wedge members 3 and 3', the support bar 12, etc. are not limited to the above embodiments.

For example, in the embodiment shown in FIG. 15 , the wedge member 5 has a screwing portion 52 that is screwed to the support bar 12 ′ and is erected on the body portion 51 . Unlike the first embodiment, the support bar 12' does not have the recess 125 into which the wedge member 3 (contact member 2) is fitted. Therefore, in this embodiment, the upper portion of the screwing portion 52 is inserted into the engaging portion 121a of the support bar 12', and the upper connection portion 123' of the support bar 12' is attached to the upper connection portion 123' of the support bar 12' with a fastener 9 such as a screw through the through hole 53. The wedge member 5 (contact member 2) is screwed. Also in this case, it is possible to prevent the ceiling panel 11 from coming off, as in the above-described embodiment.

Further, the main body portion 51 of the wedge member 5 has a substantially U-shaped cross section, and a space 54 with a part of the lower surface opened is formed therein. On the other hand, the contact member 4 has a substantially T-shaped cross section, and unlike the first embodiment, the contact member 4 does not have a space 23 formed therein. In this embodiment, these members 4 and 5 are connected by fitting the head portion 41 of the contact member 4 into the space 54 of the wedge member 5 . In this manner, the manner of connection between the contact member and the wedge member can be changed as appropriate.

The wedge member 6 shown in FIG. 16 has a tapered fitting portion 62 formed at one end of the body portion 61 instead of the bent portion 33 and the bent piece 34 of the first embodiment. A space 64 is formed in the interior of the main body 61 by partially opening the lower surface of the main body 61 . On the other hand, the shape of the opening 126 of the recess 125 of the support bar 12'' is also tapered. This prevents the wedge member 6 from falling out of the recess 125 .

Further, in the above-described first embodiment, one groove portion 35 is provided in the bent piece of the wedge member 3, but a plurality of groove portions may be provided. As indicated by the two-dot chain line in FIG. 13, by providing a plurality of grooves according to the depth of the recess 125 of the support bar 12, there is no need to prepare a wedge member 3 for each support bar 12 having a different shape. High versatility and good workability. Of course, it is possible to provide a plurality of pairs of upper and lower grooves 35 and 39 (fixed portions 38) in the wedge member 3' of the second embodiment, and the same applies to the other embodiments described above.

In the second embodiment, only the wedge member 3' is used. It may be used by being connected to the contact portion 36 of the member 3'. It should be noted that the gripping member 8 does not have to be long like the contacting member of the first embodiment.

INDUSTRIAL APPLICABILITY The present invention can be used as a ceiling plate fall prevention device for preventing a ceiling plate from falling from a system ceiling. Moreover, it can be used not only for system ceilings, but also as a fall prevention device for, for example, a ceiling base material of a ceiling structure provided with ceiling joists and ceiling joist receivers.

1: ceiling plate fall prevention device, 2, 2', 4: contact member, 2a: end, 3, 3', 5, 6: wedge member, 3a: one end, 3b: other end, 8: gripping member, 9: screw, 10: system ceiling (ceiling structure), 11: ceiling plate, 11a: outdoor surface, 11b: indoor surface, 12, 12': support bar, 12A: first support bar, 12B: second support Bar 13: Support bar receiving member (channel material) 13a: Lower flange 14: Frame member 14a: Flat portion 14b: Fixed portion 14c: Connection portion 14d: Projection portion 15: Connection member 15a: fixture (bolt), 16: support member (steel beam), 21: head, 21a: lower surface, 22, 22': hanging portion, 22a: lower end, 23: space, 24: opening, 25: plate-like portion, 31: body portion, 32: operation piece, 32a: reinforcement portion, 33: bending portion, 34: bending piece, 34a: projection portion, 35: groove portion, 36: contact portion (body portion), 37: extension portion, 38: fixed portion (fitting portion), 39: second groove portion, 41: head portion, 42: drooping portion, 42a: lower end, 51: body portion, 52: screwing portion, 53: through hole, 54: space , 61: body portion, 62: insertion portion, 64: space, 121: upper surface portion, 121a: engagement portion, 122: lower surface portion, 122a: end portion, 123: upper connection portion, 124: lower connection portion, 125: recess, 126: opening, 126a: upper opening edge, 126b: lower opening edge, 127: bottom, 128: protrusion, L: lighting device, S1: outdoor side, S2: indoor side, X: orthogonal direction (distribution direction), Y: longitudinal direction, Z: vertical direction

Claims (10)

A ceiling plate fall prevention device for preventing the ceiling plate from falling in a ceiling structure comprising a ceiling plate, a plurality of support bars for supporting the ceiling plate, and support bar receiving members for connecting and fixing the plurality of support bars. There is
a contact member disposed in a direction intersecting the support bar and in contact with the surface of the ceiling panel on the outdoor side;
The abutment member has a wedge member at one end of which one end fits into a recess formed in the support bar,
The wedge member has an operating piece that is operated by an operator and is erected on the main body,
A ceiling plate fall prevention device, wherein the one end of the contact member is fixed to the support bar by pressing the operation piece so that the one end is fitted into the recess. 2. The ceiling panel fall prevention device according to claim 1, wherein said wedge member is attached to said contact member so as to be slidable along the longitudinal direction thereof. 3. The ceiling panel fall prevention device according to claim 1, wherein one end of said wedge member is a bent portion formed by folding back an end of said body portion. 4. The ceiling panel fall prevention device according to claim 3, wherein a plurality of grooves are formed on the upper surface of the bent portion at appropriate intervals in the longitudinal direction of the contact member. 3. The ceiling panel fall prevention device according to claim 1, wherein an opening of said recess has a tapered shape, and a tapered fitting portion is formed at one end of said main body. The ceiling panel fall prevention device according to any one of claims 2 to 5, wherein the abutting member has a hanging portion extending vertically from the head portion toward the interior of the room. 7. The ceiling panel fall prevention device according to claim 6, wherein a plate-like portion is provided at the lower end of the hanging portion and is substantially parallel to the head portion. A ceiling plate fall prevention device for preventing the ceiling plate from falling in a ceiling structure comprising a ceiling plate, a plurality of support bars for supporting the ceiling plate, and support bar receiving members for connecting and fixing the plurality of support bars. There is
a contact member disposed in a direction intersecting the support bar and in contact with the surface of the ceiling panel on the outdoor side;
The abutment member has a wedge member at one end thereof fixed to the support bar,
The wedge member is a ceiling panel drop prevention device in which a screwed portion to be screwed to the support bar is erected on the body portion. A ceiling structure comprising a ceiling plate, a plurality of support bars that support the ceiling plate, a support bar receiving member that connects and fixes the plurality of support bars, and a ceiling plate fall prevention device that prevents the ceiling plate from falling. and
The ceiling plate fall prevention device has a contact member disposed in a direction intersecting the support bar and in contact with the surface of the ceiling plate on the outdoor side,
The abutment member has a wedge member at one end of which one end fits into a recess formed in the support bar,
The wedge member has an operating piece that is operated by an operator and is erected on the main body,
By pressing the operation piece, the one end is fitted into the recess, and the end of the contact member is fixed to the support bar,
In the ceiling structure, the ceiling plate is sandwiched between the contact member and the support bar. A ceiling structure comprising a ceiling plate, a plurality of support bars that support the ceiling plate, a support bar receiving member that connects and fixes the plurality of support bars, and a ceiling plate fall prevention device that prevents the ceiling plate from falling. and
The ceiling plate fall prevention device has a contact member disposed in a direction intersecting the support bar and in contact with the surface of the ceiling plate on the outdoor side,
The abutment member has a wedge member at one end thereof fixed to the support bar,
The wedge member has a screwed portion that is screwed to the support bar and is erected on the main body,
the screwing part is screwed to the support bar, and the end of the contact member is fixed to the support bar;
In the ceiling structure, the ceiling plate is sandwiched between the contact member and the support bar.

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