JP2020053923A - Panel attachment structure - Google Patents

Abstract

To prevent corrosion caused by rust of a tension coil spring sufficiently and stably, and to maintain an attachment state of a decorative panel to a surface of a ceiling plate over a long time stably.SOLUTION: A panel attachment structure 10 includes: a tension coil spring 36 for pressing a decorative panel 30 to a surface 12a of a ceiling plate 12 with upward biasing force; and a hook member 40 in which a base end part is coupled to an end part of the tension coil spring 36 and which engages with a hook part 32 of the decorative panel 30. A holder 18 is formed with a through hole 42 for allowing communication between the surface 12a side and the back surface 12b side of the ceiling plate 12. The hook member 40 is inserted into the through hole 42 of the holder 18 and the tension coil spring 36 does not exist in the through hole 42 of the holder 18.SELECTED DRAWING: Figure 1

Description

  TECHNICAL FIELD The present invention relates to a panel mounting structure for mounting a decorative panel on a surface of a ceiling plate so as to cover a lower side of a holder that holds an electric device such as a speaker, which is installed around a ceiling opening of the ceiling plate.

  As a conventional panel mounting structure, there is one shown in Patent Document 1, and the configuration of the panel mounting structure will be briefly described as follows.

  A tension coil spring for pressing the decorative panel against the surface of the ceiling plate by an upward urging force is provided on the electric device side, and both end portions of the tension coil spring respectively hang from the top (upper part) of the electric device. doing. Each end of the extension coil spring is engaged and connected to a corresponding hook provided on the back side of the decorative panel. Further, the holder has a plurality of through holes (communication holes) for communicating the front side and the back side of the ceiling plate. Each end of the tension coil spring is inserted into a corresponding through hole of the holder, and the inner diameter of each through hole of the holder is set slightly larger than the outer diameter of the tension coil spring.

  On the inner peripheral surface of each through hole of the holder, a plurality of ribs that contact the tension coil spring are formed at intervals in the circumferential direction. The extension coil spring does not contact the inner peripheral surface of the corresponding through hole of the holder. Thus, the contact area between the inside of the through hole of the holder and the extension coil spring can be reduced, and the surface tension of water in the through hole of the holder can be reduced. As a result, water hardly accumulates in the through hole of the holder, and corrosion of the extension coil spring due to rust can be prevented.

Japanese Patent No. 6248640

  By the way, as described above, in the conventional panel mounting structure as well, although corrosion due to the rust of the tension coil spring can be prevented to some extent, water transmitted from the plurality of ribs to the tension coil spring may accumulate in the through hole of the holder. is there. Therefore, corrosion due to rust of the tension coil spring cannot be sufficiently and stably prevented, and it is not easy to stably maintain the state of attachment of the decorative panel to the surface of the ceiling panel for a long period of time. .

  Therefore, an object of the present invention is to provide a panel mounting structure capable of sufficiently reducing water accumulated in a through hole of a holder while keeping a tension coil spring in a state of being easily dried.

  An embodiment of the present invention is directed to a panel for mounting a decorative panel on a surface of a ceiling plate so as to cover a lower side (bottom side) of a holder which is installed on a peripheral edge of a ceiling opening of the ceiling plate and holds an electric device. In the mounting structure, a tension coil spring for pressing the decorative panel against the surface of the ceiling plate by an upward urging force, and a base end connected to an end of the tension coil spring, provided on a back side of the decorative panel. A hook member to be locked to the hook portion. And a through hole (communication hole) for connecting the front side and the back side of the ceiling plate to the holder is formed, the hook member is inserted through the inside of the through hole of the holder, and the tension coil spring is It does not exist in the through hole of the holder.

  According to the present invention, corrosion of the tension coil spring due to rust can be sufficiently and stably prevented, and the state of attachment of the decorative panel to the surface of the ceiling plate can be stably maintained for a long period of time.

FIG. 1 is a schematic sectional view showing a panel mounting structure according to the first embodiment of the present invention. 2A is an enlarged view showing an IIA part in FIG. 1, and FIG. 2B is an enlarged view showing a state of a hook member before a decorative panel is attached to a surface of a ceiling panel. FIG. 3 is a schematic sectional view showing a panel mounting structure according to a second embodiment of the present invention.

  Hereinafter, a first embodiment and a second embodiment of the present invention will be described with reference to the drawings. In the drawings, “U” indicates an upward direction, and “D” indicates a downward direction.

(1st Embodiment)
First, with reference to FIG. 1, a description will be given of a configuration serving as a premise of a panel mounting structure 10 according to a first embodiment of the present invention.

  As shown in FIG. 1, a holder 18 that holds a speaker 16 as an electric device is installed on the periphery of the ceiling opening 14 on the surface 12 a of the ceiling plate 12. The holder 18 has an annular baffle board 22 as a holder base provided on the surface 12 a of the ceiling plate 12 at the periphery of the ceiling opening 14 by a plurality of clamp members 20. The baffle board 22 is made of, for example, a synthetic resin such as an acrylic resin, a pet resin, or a polycarbonate resin. An annular speaker attachment portion 24 is formed on the inner peripheral side of the baffle board 22, and the speaker attachment portion 24 is integrally connected to a flange portion 26 formed on the speaker 16 by, for example, screwing. The holder 18 has a cabinet 28 that is provided above the baffle board 22 and houses the speaker 16. The cabinet 28 is located on the back surface 12b side of the ceiling plate 12, and is made of, for example, a synthetic resin such as an acrylic resin, a pet resin, or a polycarbonate resin.

  Note that, instead of the speaker 16, for example, an illumination unit (not shown) or the like may be used as the electric device. Instead of the plurality of clamp members 20, the baffle board 22 may be provided on the periphery of the ceiling opening 14 on the surface 12 a of the ceiling plate 12 by screwing. Further, the baffle board 22 may be provided on the periphery of the ceiling opening 14 on the back surface 12b of the ceiling plate 12 instead of the periphery of the ceiling opening 14 on the surface 12a of the ceiling plate 12. Further, the cabinet 28 may be omitted from the components of the holder 18.

  Subsequently, a configuration of the panel mounting structure 10 according to the first embodiment of the present invention will be described.

  As shown in FIG. 1 and FIG. 2A, the panel mounting structure 10 according to the first embodiment of the present invention has a decorative structure so as to cover the lower side of the holder 18 including the lower side (bottom side) of the speaker 16. This is a structure for attaching the panel 30 to the surface 12a of the ceiling plate 12. Here, the decorative panel 30 is made of, for example, a synthetic resin such as an acrylic resin, a pet resin, or a polycarbonate resin. A plurality of hooks 32 are formed on the back surface of the decorative panel 30.

  In the cabinet 28, a plurality of guide grooves 34 are formed at intervals in the circumferential direction of the cabinet 28, and each guide groove 34 extends from the top of the cabinet 28 to the side wall. In each guide groove 34, a tension coil spring 36 for pressing the decorative panel 30 against the surface 12a of the ceiling panel 12 by an upward urging force is provided. One end of each tension coil spring 36 is integrally connected to the upper part of the corresponding guide groove 34 via a set screw 38. Each tension coil spring 36 is made of, for example, a stainless steel wire.

  When the cabinet 28 is omitted from the components of the holder 18, one end of each of the extension coil springs 36 is integrated with a part of the speaker 16 instead of the upper part of the guide groove 34 which is a part of the cabinet 28. Link.

  The base end of the hook member 40 is locked and connected to the other end of each tension coil spring 36, and each hook member 40 is locked to the corresponding hook 32 of the decorative panel 30. Each hook member 40 is made of, for example, a stainless steel wire, and the wire diameter of each hook member 40 is not particularly limited. However, considering the strength and durability of each hook member 40, the tension coil spring 36 It is preferable to set the diameter to at least twice the wire diameter. The base end of each hook member 40 is formed in a U-shape by bending, and the distal end side of each hook member 40 is formed in an S-shape by bending.

  Note that instead of engaging and connecting the base end of the hook member 40 corresponding to the other end of each tension coil spring 36, the hook member 40 may be integrally connected. In other words, the hook members 40 corresponding to the respective extension coil springs 36 may be constituted by the same components. The shapes of the base end side and the distal end side of each hook member 40 can be appropriately changed.

  A plurality of through-holes (communication holes) 42 for connecting the front surface 12a side and the back surface 12b side of the ceiling plate 12 are formed at a boundary portion (connection portion) between the baffle board 22 and the cabinet 28 in the holder 18. . Each through hole 42 of the holder 18 communicates with the corresponding guide groove 34, and the inner diameter of each through hole 42 of the holder 18 is set slightly (about 5 mm) larger than the outer diameter of the extension coil spring 36. . Further, each hook member 40 is inserted through the through hole 42 of the holder 18, and each tension coil spring 36 does not exist in the through hole 42 of the holder 18. Further, as shown in FIG. 2B, in a state before the decorative panel 30 is attached to the surface 12 a of the ceiling plate 12, each hook member 40 is attached to the holder 18 by the upward urging force of the extension coil spring 36. It is engaged with the lower peripheral portion of the corresponding through hole 42.

  Next, the operation and effect of the first embodiment of the present invention will be described.

  As described above, each tension coil spring 36 does not exist in the through hole 42 of the holder 18. Therefore, the tension coil spring 36 can be kept in a state where it is easy to dry.

  Further, as described above, each hook member 40 is inserted through the through hole 42 of the holder 18. Therefore, if the tension coil spring 36 is inserted through the through hole 42 of the holder 18, the inner peripheral surface of the through hole 42 of the holder 18 and the hook member 40 The contact area with the substrate can be extremely reduced. As a result, water remaining in the through hole 42 of the holder 18 can be sufficiently reduced.

  Further, as described above, the wire diameter of each hook member 40 is set to be at least twice the wire diameter of the extension coil spring 36. Therefore, even if the rust of the hook member 40 causes corrosion, a sufficient time until the hook member 40 is broken can be secured.

  Therefore, according to the first embodiment of the present invention, corrosion of the extension coil spring 36 due to rust is sufficiently and stably prevented, and the state of attachment of the decorative panel 30 to the surface 12a of the ceiling plate 12 is stabilized for a long period of time. Can be maintained.

(2nd Embodiment)
As shown in FIG. 3, the panel mounting structure 44 according to the second embodiment of the present invention places the decorative panel 30 on the surface 12 a of the ceiling plate 12 so as to cover the lower side of the holder 18 including the lower side of the speaker 16. It is a structure for mounting. The panel mounting structure 44 has the same configuration as the panel mounting structure 10 (see FIG. 1), and only the configuration of the panel mounting structure 44 that is different from the configuration of the panel mounting structure 10 will be described. Note that among the plurality of components in the panel mounting structure 44, components corresponding to the components in the panel mounting structure 10 are denoted by the same reference numerals in the drawings.

  Guide grooves 46 are formed in the cabinet 28, and each guide groove 46 extends from one side wall of the cabinet 28 to the other side wall via the top. In the guide groove 46, a tension coil spring 48 for pressing the decorative panel 30 against the surface 12a of the ceiling panel 12 by an upward urging force is provided. Both ends of the extension coil spring 48 hang down from the top (upper part) of the cabinet 28, respectively. The extension coil spring 48 is made of, for example, a stainless steel wire.

  When the cabinet 28 is omitted from the components of the holder 18, the extension coil spring 48 is provided on the speaker 16 side, and both ends of the extension coil spring 48 hang down from the top of the speaker 16.

  A base end of a hook member 50 is locked and connected to each end of the extension coil spring 48, and each hook member 50 is locked to a corresponding hook 32 of the decorative panel 30. Each hook member 50 is made of, for example, a stainless steel wire, and has the same configuration as the hook member 40 (FIGS. 2A and 2B).

  Each hook member 50 passes through the through hole 42 of the holder 18, and the extension coil spring 48 does not exist in the through hole 42 of the holder 18. In addition, before the decorative panel 30 is attached to the surface 12 a of the ceiling plate 12, each hook member 50 is provided on the lower peripheral edge of the corresponding through hole 42 of the holder 18 by the upward urging force of the extension coil spring 48. To the part.

  Further, in the second embodiment of the present invention, as described above, the tension coil spring 48 does not exist in the through hole 42 of the holder 18. Each hook member 50 passes through the through hole 42 of the holder 18. Therefore, the second embodiment of the present invention has the same operation and effect as the first embodiment of the present invention.

  The present invention is not limited to the description of the above-described embodiment, but can be implemented in various other modes by making appropriate changes. Further, the structure in which the panel mounting structure 10 (or 44) and the holder 18 are combined can be regarded as an electric device mounting structure for mounting the speaker 16 as an electric device on the back surface 12b side of the ceiling plate 12. The scope of rights included in the present invention is not limited to the above-described embodiment.

DESCRIPTION OF SYMBOLS 10 Panel mounting structure 12 Ceiling board 12a Front surface 12b Back surface 14 Ceiling opening 16 Speaker (electric equipment)
18 holder 20 clamp member 22 baffle board (holder base)
24 Speaker mounting part 26 Flange part 28 Cabinet 30 Decorative panel 32 Hook part 34 Guide groove 36 Tension coil spring 38 Set screw 40 Hook member 42 Through hole (communication hole)
44 Panel mounting structure 46 Guide groove 48 Tension coil spring 50 Hook member

Claims (5)

In a panel mounting structure for mounting a decorative panel on the surface of the ceiling panel, so as to cover a lower side of a holder that holds an electric device and is installed on a periphery of a ceiling opening of the ceiling panel,
A tension coil spring for pressing the decorative panel against the surface of the ceiling panel by an upward urging force;
A hook member having a base end connected to an end of the extension coil spring and engaging with a hook provided on the back side of the decorative panel;
A through hole is formed in the holder to connect the front side and the back side of the ceiling plate, the hook member is inserted through the through hole of the holder, and the extension coil spring is connected to the through hole of the holder. A panel mounting structure characterized in that it does not exist inside.   The number of the tension coil springs and the number of the hook members are respectively plural, and one end of each tension coil spring is connected to the holder or a part of the electric device, and the other end of each tension coil spring has the hook member. 2. The panel mounting structure according to claim 1, wherein a base end is connected, and each hook member is engaged with a corresponding hook provided on a back side of the decorative panel. 3.   The number of the hook members is plural, and both end sides of the extension coil spring respectively hang down from the top of the holder or the electric device, and the base end of the hook member is connected to each end of the extension coil spring, 2. The panel mounting structure according to claim 1, wherein each hook member engages with a corresponding one of the hooks provided on a back side of the decorative panel. 3.   4. The panel mounting structure according to claim 1, wherein a wire diameter of the hook member is set to be twice or more a wire diameter of the extension coil spring. 5.   The panel mounting structure according to any one of claims 1 to 4, wherein the electric device is a speaker.

Images