JP7329233B2 - CEILING BOARD SUPPORT, CEILING STRUCTURE AND CONSTRUCTION METHOD THEREOF - Google Patents

Description

The present invention relates to a ceiling plate support, a ceiling structure, and a construction method thereof.

As a ceiling plate support for supporting a ceiling plate on a support member provided in the ceiling space, a structure including an upper member fixed to the support member and a lower member fixed to the upper member from below is known. (See Patent Documents 1 and 2). In this structure, the upper member is formed with a groove that opens downward, and the lower member is formed with a ridge that is fitted into the groove from below. The inner side surface of the groove and the outer side surface of the ridge are formed with stepped portions that mesh with each other to prevent the ridge inserted into the groove from coming off. The lower member is further formed with a lower surface supporting portion that supports the ceiling plate from below, and supports the edge portion of the ceiling plate.

JP 2018-71338 A JP-A-2000-17770

In the support tool, when the protrusion is inserted into the groove, the step of the protrusion passes through the inside of the step of the groove, so the groove needs to widen. However, in the supports of Patent Documents 1 and 2, since the groove is formed in the upper member fixed to the upper support member, the base end of the groove is pressed by the support member and is difficult to spread, resulting in workability. There was a problem that it was bad.

Accordingly, it is an object of the present invention to provide a ceiling plate support, a ceiling structure, and a method for constructing the ceiling plate support, in which grooves are easily widened and workability is excellent.

A first invention for solving the above-mentioned problems is a ceiling panel support that allows a ceiling panel to be supported by a support member provided in the ceiling space. Such a ceiling panel support includes a first member supported by the support member and a second member fixed to the lower portion of the first member. The first member is made of metal, and the second member is made of resin. The first member includes a rib that protrudes outward in the width direction and a connecting ridge that extends downward under the rib, and the second member includes a connecting groove that engages with the connecting ridge. and a support portion that protrudes outward in the width direction from the lower end portion of the connecting groove portion and supports the ceiling panel from below. The ceiling plate is sandwiched between the rib and the support portion while the second member is connected to the first member.

According to such a ceiling plate support, since the connecting groove is provided in the second member that is not fixed to the supporting member, the connecting groove can be easily expanded, and workability is improved. Further, by providing the connecting groove portion on the lower side, the outer wall surface of the connecting groove portion can be made flat. If the end surface of the ceiling plate is brought into surface contact with the second member, it is possible to prevent moisture in the room from penetrating into the space above the ceiling. Furthermore, by configuring the first member from metal, it is possible to fly over a long span. Since the second member is made of resin, the connecting groove can be expanded more easily, and workability can be further improved.

Moreover, in the ceiling panel support of the present invention, it is preferable that the tip of the rib is curved downward, and the tip surface of the rib presses the upper surface of the ceiling panel. According to such a configuration, the tip surface of the rib linearly presses the upper surface of the ceiling panel, so that the pressing force per unit area can be increased. Furthermore, when a soft ceiling plate made of foam material or the like is used, the tip surfaces of the ribs can be made to bite into the ceiling plate, thereby further enhancing the airtightness between the room and the space above the ceiling.

Further, in the ceiling plate support of the present invention, the connecting ridge has a plurality of stages of hooks that spread upward, and the connecting groove is a hook-shaped recess that engages with the hooks. is preferably provided in a plurality of stages in the vertical direction. According to such a configuration, it is possible to change the mounting height of the second member by changing the hook with which the hook-shaped recess is engaged. This makes it possible to accommodate variations in the thickness of the ceiling panel. Furthermore, by engaging the hook-shaped concave portion with the hook portion of the lower end portion, the second member can be temporarily fixed in a state in which the gap dimension between the support portion and the rib is larger than the thickness dimension of the ceiling plate, Better workability.

A second invention for solving the above problems is a ceiling structure comprising a ceiling panel, a support member provided in the ceiling space, and a ceiling panel support that allows the support member to support the ceiling panel. The ceiling panel support includes a first member supported by the support member and a second member fixed to a lower portion of the first member, the first member including ribs projecting outward in the width direction. , a connecting ridge extending downward on the lower side of the rib, and the second member includes a connecting groove that engages with the connecting ridge, and a ceiling that protrudes outward in the width direction at the lower end of the connecting groove. and a support for supporting the plate from below. The ceiling plate is sandwiched between the rib and the support portion while the second member is connected to the first member.

According to such a ceiling structure, the connecting groove can be easily expanded, and workability is improved. In addition, if the end surface of the ceiling plate is brought into surface contact with the second member, it is possible to make it difficult for the humidity in the room to enter the space above the ceiling.

In the ceiling structure of the present invention, the ceiling plate is made of a foam material, the rib extends over the entire longitudinal length of the first member, and the tip of the rib curves downward. It is preferable that the top surface of the rib bites into the upper surface of the ceiling plate. According to such a configuration, it is possible to improve the airtightness between the room and the space above the ceiling.

A third aspect of the invention for solving the above problems is a construction method for a ceiling structure in which a ceiling panel support is used to support a ceiling panel on a support member provided in the ceiling using the ceiling panel support. In this construction method, the lowermost hook portion of the connecting ridge of the first member is engaged with the upper hook-shaped concave portion among the plurality of hook-shaped concave portions of the connecting groove portion of the second member. a temporary fixing step of temporarily fixing the second member to the first member; and inserting an edge portion of the ceiling plate between the support portion of the second member and the rib of the first member. a step of installing the ceiling plate, and pushing up the second member to engage the lowermost hook portion of the connection ridge of the first member with the hook-shaped concave portion below the connection groove portion of the second member. and a final fixing step of holding the ceiling plate between the support portion and the rib.

According to the construction method of the ceiling structure, the connection groove of the ceiling plate support can be easily expanded, and the workability is improved. Moreover, since the ceiling board is installed after the second member is temporarily fixed, the temporary fixing of the second member and the installation of the ceiling board can be easily performed, and workability is further improved.

ADVANTAGE OF THE INVENTION According to this invention, a connection groove part becomes easy to spread and it can improve workability.

It is the side view which showed the ceiling structure which concerns on embodiment of this invention. It is the perspective view which showed the ceiling structure which concerns on embodiment of this invention. 1(a) is an enlarged side view showing a ceiling structure according to an embodiment of the present invention, and FIG. 1(b) is an enlarged side view showing an enlarged main part. It is a principal part expansion perspective view which showed the ceiling structure which concerns on embodiment of this invention. 1 is an exploded side view showing a ceiling board support according to an embodiment of the present invention; FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram for explaining a ceiling structure construction method according to an embodiment of the present invention, in which (a) is a side view showing a temporary fixing step and a ceiling board installation step, and (b) shows a permanent fixing step; It is a side view.

A ceiling structure and support members according to embodiments of the present invention will be described in detail with reference to the drawings. In this embodiment, a ceiling installed in a humid space such as an indoor pool or a bathroom will be described as an example. As shown in FIGS. 1 and 2, the ceiling structure 1 includes a ceiling panel 2 (not shown in FIG. 2), support members 3, and ceiling panel supports 10. As shown in FIGS.

The ceiling plate 2 is a rectangular plate member forming the surface of the ceiling. In this embodiment, the ceiling plate 2 is a soft and lightweight plate made of foam.

The support member 3 is a member that supports the ceiling plate 2 and the ceiling plate support 10, and is provided in the ceiling space. The support member 3 is made of a lightweight steel channel material having a U-shaped cross section. The support member 3 is fixed to an upper structure 4 such as a beam on the upper floor via a suspension bolt 5 . A plurality of supporting members 3 are arranged in parallel at predetermined intervals.

As shown in FIGS. 3 and 4 , the ceiling panel support 10 is a member that allows the support member 3 to support the ceiling panel 2 . The ceiling panel support 10 includes a first member 11 arranged on the upper side and a second member 12 arranged on the lower side. The first member 11 is a member fixed to the support member 3, and is made of metal (in this embodiment, an extruded profile made of an aluminum alloy). As also shown in FIG. 5 , the first member 11 includes a web portion 13 , an upper end locking portion 14 , ribs 15 and connecting ridges 16 .

The web portion 13 has a vertical plate shape that spreads in the vertical direction and extends in the horizontal direction. The web portion 13 constitutes the trunk portion of the first member 11 . The upper end locking portion 14 is a portion for locking the first member 11 to the support member 3, and has a U-shaped cross section extending in the thickness direction of the web portion 13 at the upper portion of the web portion 13. ing. A concave portion 14a that is recessed upward is formed on the lower side of the bottom surface of the groove. The first member 11 is fixed to the support member 3 by clips 18 (see FIGS. 3 and 4).

The clip 18 consists of a pair of locking members 18a, 18a. The pair of locking members 18a, 18a are combined to form a portal shape, and are locked to the support member 3 from above. The lower end portion of the locking member 18a is bifurcated and sandwiches the upper end locking portion 14 from both sides. A contact plate portion 19 that contacts the side surface of the web portion 13 is formed at the lower end portion of the locking member 18a. The contact plate portion 19 is inserted into the concave portion 14a of the upper end locking portion 14 from below and locked. A thread groove 20 is linearly formed on the inner side surface of the groove of the upper end locking portion 14, and the first member 11 may be fixed to the support member 3 by screwing from above.

The rib 15 is a portion that reinforces the web portion 13 and presses the ceiling plate 2 from above. The rib 15 protrudes outward in the width direction (thickness direction of the web portion 13 ) of the first member 11 from the lower end portion of the web portion 13 and extends over the entire longitudinal length of the first member 11 . In this embodiment, the ribs 15 are provided on both sides in the width direction. The base ends of the ribs 15 are perpendicular to the web portion 13 . The tip portion of the rib 15 is curved downward, and the normal line of the tip surface 15 a of the rib 15 is parallel to the web portion 13 . A rib tip surface 15 a is a flat surface that extends along the thickness direction of the rib 15 and connects the front surface and the back surface of the rib 15 . A reinforcing ridge 17 is formed on the upper surface of the base end portion of the rib 15 so as to protrude upward.

The connecting ridge 16 is a part that connects the second member 12 . The connecting protrusion 16 protrudes downward from the lower end of the web portion 13 on the lower side of the rib 15 and extends over the entire longitudinal length of the first member 11 . The connecting ridge 16 has a plurality of stages of hook portions 22 extending upward on both sides in the width direction of the support member 3 . In this embodiment, the hook portion 22 is formed in two upper and lower stages at the lower end portion of the connecting protrusion 16 .

The second member 12 is a member fixed to the lower portion of the first member 11 . The second member 12 is made of resin and is softer than the metal first member 11 . The second member 12 has a support portion 25 and a connecting groove portion 26 . The support portion 25 is a portion that supports the edge portion of the ceiling plate 2 from below, and is formed in a flat plate shape. The support portion 25 protrudes outward from the connecting groove portion 26 in the width direction of the second member 12 (the width direction of the connecting groove portion 26). In this embodiment, the support portions 25 are provided on both the left and right sides in the width direction. The left and right support portions 25, 25 are formed on the same plane. The support portion 25 extends over the entire longitudinal length of the second member 12 .

As shown in (b) of FIG. 3, the connecting groove portion 26 is a portion that engages with the connecting ridge 16, and is composed of a pair of partition walls 26a, 26a that partition the connecting groove, and the connecting groove is formed inside. It is The partition wall 26 a extends upward from the support portion 25 . The connecting groove portion 26 is open upward, and the connecting ridge 16 is inserted into the interior (between the pair of partition walls 26a, 26a) from above. Hook-shaped concave portions 27 that engage with the hook portions 22 of the connecting ridges 16 are formed in a plurality of stages in the vertical direction on the wall surfaces (inner side of the connecting groove portions 26) of the partition walls 26a, 26a facing each other. In this embodiment, the hook-shaped concave portion 27 is formed in three upper and lower stages. Like the hook portion 22, the hook-shaped concave portion 27 is a space having a cross-sectional shape that widens toward the top. The width dimension of the upper end of the hook-shaped concave portion 27 (distance between opposing side walls) is larger than the width dimension of the upper end of the hook portion 22 . Larger than the width of the groove. At the upper end of each hook-shaped recess 27 , a stepped portion 28 protrudes from the wall surface that defines the hook-shaped recess 27 . When the connecting ridge 16 is inserted into the connecting groove 26 , the upper surface of the hook portion 22 is engaged with the lower surface of the stepped portion 28 , thereby engaging the connecting ridge 16 with the connecting groove 26 . A wide portion 29 is formed at the lower portion of the hook-shaped recess 27 at the lowest stage to increase the width of the recess. As a result, the wall thickness of the lower end portion of the partition wall 26a is reduced. The outer surface of the connecting groove portion 26 is a flat surface.

In order to support the ceiling plate 2 with the ceiling plate support 10 configured as described above, as shown in FIG. The connecting ridges 16 of the member 11 are inserted into the connecting grooves 26 . The connecting protrusion 16 is inserted so that the hook portion 22 at the lower end thereof is engaged with the hook-shaped concave portion 27 at the lower end of the connecting groove portion 26 . In this state, the tip surface 15a of the rib 15 contacts the upper surface of the ceiling plate 2. As shown in FIG. A tip surface 15 a of the rib 15 presses the upper surface of the ceiling plate 2 . Thereby, the ceiling plate 2 is sandwiched between the first member 11 and the second member 12 . Here, since the ceiling plate 2 is made of a soft resin material, the tip surfaces 15a of the ribs 15 slightly bite into the upper surface of the ceiling plate 2. As shown in FIG.

Next, a method for constructing the ceiling structure 1 having the ceiling panel support 10 having the configuration described above will be described. This construction method includes a first member fixing step, a second member temporary fixing step, a ceiling board installing step, and a final fixing step.

The first member fixing step is a step of fixing the first member 11 of the ceiling panel support 10 to the support member 3 . As shown in FIGS. 3 and 4 , in this embodiment, a clip 18 is used to fix the first member 11 to the support member 3 . A pair of locking members 18a, 18a constituting the clip 18 sandwich the support member 3 from both sides, and the upper ends of the locking members 18a, 18a are bolted. The contact plate portion 19 at the lower end portion of the locking member 18 a is brought into contact with the side surface of the web portion 13 of the first member 11 . The contact plate portion 19 of one locking member 18 a contacts one side surface of the web portion 13 , and the contact plate portion 19 of the other locking member 18 a contacts the other side surface of the web portion 13 . there is The contact plate portions 19 , 19 are inserted from below into the recesses 14 a on the lower surface of the upper end locking portion 14 , so that the first member 11 is locked by the clip 18 . The first member 11 is supported by the clip 18 at the arrangement pitch of the supporting members 3 arranged in parallel. Here, since the first member 11 is made of metal, it can fly over a long span.

The second member temporary fixing step is a step of temporarily fixing the second member 12 to the first member 11 . As shown in (a) of FIG. 6 , in the second member temporary fixing step, the lowermost hook portion 22 of the connecting ridge 16 of the first member 11 is attached to the hook portion 22 of the connecting groove portion 26 of the second member 12 . The upper hook-shaped recess 27 (in this embodiment, the uppermost hook-shaped recess 27) of the recesses 27, 27 is locked. At this time, since the second member 12 that is not fixed to the support member 3 is provided with the connecting groove portion 26, the second member 12 is easily deformed and the connecting groove portion 26 is easily expanded. Therefore, it is easy to insert the connecting protrusion 16, and workability is good. In addition, since the second member 12 is made of resin, the connecting groove portion 26 can be expanded more easily. Furthermore, since the wide portion 29 is formed in the lower portion of the hook-shaped concave portion 27 at the lowest stage, the wall thickness of the lower end portion of the connecting groove portion 26 is reduced, making it easier to expand. Therefore, workability is further improved. In this process, the distance between the support portion 25 and the rib 15 in the temporarily fixed state is larger than the distance between the ceiling plate 2 and the fixed ceiling plate 2 .

The step of installing the ceiling plate is a step of installing the ceiling plate 2 between the second member and the first member. Specifically, the edge of the ceiling plate 2 is inserted between the support portion 25 of the second member 12 and the rib 15 of the first member 11, and the ceiling plate 2 is placed on the support portion 25. . At this time, since the distance between the supporting portion 25 and the rib 15 is larger than the plate thickness of the ceiling plate 2, the ceiling plate 2 can be easily inserted. The edges of each side of the ceiling plate 2 are placed on separate support portions 25 of the second members, and the ceiling plate 2 is held in a stable state.

The final fixing step is a step of holding the ceiling plate 2 between the first member 11 and the second member 12 and fixing the same. As shown in (b) of FIG. 6 , in the final fixing step, the second member 12 is pushed up so that the lowermost hook portion 22 of the connecting ridge 16 of the first member 11 is engaged with the connecting groove portion 26 of the second member 12 . , and engaged with the hook-shaped concave portion 27 at the lowest stage. At this time, the ceiling plate 2 is lifted together with the second member 12 because it is engaged with the second member 12 . Since only the second member 12 needs to be pushed up during construction, workability is improved. The distance between the support portion 25 and the rib 15 is slightly smaller than the plate thickness of the ceiling plate 2 , and the tip surface of the rib 15 bites into the upper surface of the ceiling plate 2 . Furthermore, in the final fixing step, as in the second member temporary fixing step, the connecting groove portion 26 is likely to widen, so workability is good.

As described above, in the constructed ceiling structure 1, the ceiling plate 2 is sandwiched between the support portions 25 and the ribs 15, so airtightness between the room and the space above the ceiling can be maintained. Further, the tip of the rib 15 is curved, and the tip surface 15a of the rib 15 presses against the upper surface of the ceiling plate 2, so that the rib 15 presses the ceiling plate 2 linearly. Therefore, the pressing force per unit area of the tip surface 15a of the rib 15 is increased, and the airtightness can be further improved. As a result, it is possible to suppress the leakage of moisture from the indoor pool or bath to the ceiling space.

Moreover, according to the ceiling panel support 10 according to the present embodiment, it is possible to fly over a long span, and to improve workability. Further, in the second member 12, the partition walls 26a, 26a extend in two rows in the longitudinal direction, so that structural rigidity is enhanced.

Further, in the ceiling plate support 10, the hook portions 22 of the connecting ridges 16 and the hook-shaped concave portions 27 of the connecting groove portions 26 are formed in multiple stages, respectively. By changing 22, the mounting height of the second member 12 can be changed. This makes it possible to accommodate variations in the thickness of the ceiling panel. Furthermore, by engaging the hook-shaped concave portion with the hook portion of the lower end portion, the second member can be temporarily fixed in a state in which the gap dimension between the support portion and the rib is larger than the thickness dimension of the ceiling plate, Better workability.

Further, according to the ceiling panel support 10, if the end surface of the ceiling panel 2 is brought into surface contact with the outer flat surface of the connecting groove 26, the airtightness between the room and the ceiling space can be further enhanced.

Although the embodiments for carrying out the present invention have been described above, the present invention is not limited to the above-described embodiments, and design changes such as materials, shapes, and sizes can be made as appropriate without departing from the gist of the present invention. be. For example, in the above embodiment, the first member 11 is made of metal and the second member 12 is made of resin, but the present invention is not limited to this. For example, the second member 12 may be made of relatively soft metal, and the first member 11 may be made of relatively hard resin.

In the above-described embodiment, the ribs 15 of the first member 11 and the support portions 25 of the second member 12 are provided on both the left and right sides, but they may be provided on only one side. A ceiling plate support having ribs 15 and support portions 25 formed only on one side can be used as a peripheral edge along a wall.

Also, in the above embodiment, the first member 11 is fixed to the support member 3 via the clip 18, but the present invention is not limited to this. The first member 11 may be fixed to the support member 3 by screwing from the upper support member 3 side to the screw groove 20 formed in the inner side surface of the groove of the upper end locking portion 14 .

REFERENCE SIGNS LIST 1 ceiling structure 2 ceiling plate 3 support member 10 ceiling plate support 11 first member 12 second member 15 rib 15a tip surface 16 connecting protrusion 22 hook 25 support 26 connecting groove 27 hook-shaped concave portion

Claims (4)

A ceiling plate support that supports a ceiling plate on a support member provided in the ceiling space,
A first member supported by the support member and a second member fixed to the lower part of the first member,
The first member is made of metal, the second member is made of resin,
The first member includes a rib projecting outward in the width direction and a connecting ridge extending downward below the rib,
The second member includes a connecting groove portion that engages with the connecting ridge, and a support portion that protrudes outward in the width direction from the lower end portion of the connecting groove portion and supports the ceiling plate from below,
With the second member connected to the first member, the ceiling plate is sandwiched between the rib and the support portion ,
The rib extends over the entire longitudinal length of the first member,
The tip of the rib is curved downward,
The tip surface of the rib presses the upper surface of the ceiling plate over the entire length in the longitudinal direction of the first member with a width equivalent to the plate thickness of the rib.
A ceiling panel support, characterized by: The connecting ridge has a plurality of stages of hooks extending upward in the vertical direction,
The ceiling panel support according to claim 1 , wherein the connecting groove portion includes a plurality of hook-shaped recesses that engage with the hook portion in the vertical direction. A ceiling structure comprising a ceiling plate, a support member provided in the ceiling, and a ceiling plate support for supporting the ceiling plate on the support member,
The ceiling panel support includes a first member supported by the support member and a second member fixed to a lower portion of the first member,
The first member includes a rib projecting outward in the width direction and a connecting ridge extending downward below the rib,
The second member includes a connecting groove portion that engages with the connecting ridge, and a support portion that protrudes outward in the width direction from the lower end portion of the connecting groove portion and supports the ceiling plate from below,
With the second member connected to the first member, the ceiling plate is sandwiched between the rib and the support portion ,
The ceiling panel is made of a foam material,
The rib extends over the entire longitudinal length of the first member,
The tip of the rib is curved downward,
The tip surface of the rib is cut into the upper surface of the ceiling plate over the entire length in the longitudinal direction of the first member with a width equivalent to the plate thickness of the rib.
A ceiling structure characterized by: A method for constructing a ceiling structure in which a ceiling plate is supported by a support member provided in the ceiling using the ceiling plate support according to claim 2 ,
The lowermost hook portion of the connecting ridge of the first member is engaged with the upper hook-shaped concave portion among the plurality of hook-like concave portions of the connecting groove portion of the second member, and the second A temporary fixing step of temporarily fixing a member to the first member;
a ceiling panel installation step of inserting an edge portion of the ceiling panel between the support portion of the second member and the rib of the first member;
By pushing up the second member, the lowermost hook portion of the connection ridge of the first member is engaged with the hook-shaped concave portion below the connection groove portion of the second member, and the ceiling plate is and a final fixing step of sandwiching the rib between the supporting portion and the rib, and biting the top surface of the ceiling plate over the entire length of the first member in the longitudinal direction of the tip surface of the rib. Construction method of the ceiling structure.

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