JP7293402B2 - lid - Google Patents

Description

The present invention relates to a lid for opening and closing an opening.

2. Description of the Related Art Lids for opening and closing inspection ports and various openings have been known. On the surface of one side end of such a lid, there is a case where an operation part operated when unlocking or opening/closing the locking device is provided.
For example, Patent Literature 1 below discloses a lid locking device provided with a lid that opens and closes an inspection opening with an arbitrary side as the center of opening and closing. Further, a locker for holding a locked portion provided at the opening/closing free end portion of the lid body is installed around the inspection opening portion. Further, the locker is provided with an unlocking lever portion which is operated to unlock by an unlocking tool inserted through a gap between the cover and the inspection opening.

JP 2018-204369 A

However, with the lid described in Patent Document 1, when opening the unlocked lid, it is necessary to hold the end of the lid, etc., and further improvement is desired.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lid body that can improve the opening and closing operability while improving the appearance.

In order to achieve the above object, a lid according to the present invention has a rectangular flat plate shape, and a first end in a first direction is rotatably held on a first edge side of four peripheral edges defining an opening, A locking portion that is locked to a locked portion provided on a side of a second edge facing the first edge is provided at a second end in the first direction, and the locking portion is: an operation portion that is operated when releasing the locked state with respect to the locked portion by means of a jig inserted into the gap between the first direction second end portion and the second edge portion; a knob that is in a non-protruding position that does not protrude from the gap and that is in a protruding position that protrudes from the gap toward the surface side in a released state; The part is provided substantially at the center in a second direction orthogonal to the first direction and the thickness direction of the lid .

Since the lid according to the present invention is configured as described above, the opening and closing operability can be improved while the appearance can be improved.

(a) and (b) schematically show an example of a lid according to an embodiment of the present invention, (a) being a schematic plan view and (b) being a partially broken schematic side view. (a) is a partially broken schematic plan view schematically showing the state in which the same lid is installed, and (b) is a partially broken schematic longitudinal section corresponding to the X1-X1 line arrow view in FIG. 6 (a) It is a plan view. It is a partially broken schematic plan view made to correspond to Fig.2 (a). 2(a) and 2(b) are schematic vertical cross-sectional views, partially cut away, corresponding to the X2-X2 line in FIG. 2(a). (a) is a partially broken schematic exploded perspective view corresponding to the Z section in FIG. . (a) is a partially broken schematic plan view corresponding to the Z section in FIG. 2 (a), (b) is a schematic bottom view showing an example of the locking portion, It is a schematic vertical cross-sectional view corresponding to the X3-X3 arrow view in b). FIG. 3 is a partially broken schematic exploded plan view with a part omitted schematically showing the same lid. (a) to (c) are schematic perspective views partially broken away corresponding to the Z section in FIG. 2(a). 6(a) to 6(c) are schematic longitudinal cross-sectional views, partially cut away, corresponding to the YY line in FIG. 6(a). 6(a) is a schematic vertical cross-sectional view taken along line X1-X1 in FIG. 6(a); FIG. It is a partially broken schematic perspective view corresponding to the Z section in Fig.2 (a). 6(a) is a schematic vertical cross-sectional view taken along line X1-X1 in FIG. 6(a); FIG.

An embodiment of the present invention will be described below with reference to the drawings.
It should be noted that some of the detailed reference numerals attached to other drawings are omitted in some of the drawings.
Further, in the following embodiments, directions such as the vertical direction will be described with reference to the state in which the lid body according to the present embodiment is installed.
1 to 12 are diagrams schematically showing an example of the lid according to this embodiment.

As shown in FIGS. 1(a) and 1(b), the lid 2 according to the present embodiment has a rectangular flat plate shape and is configured to open and close an opening 6 (see FIG. 3). In this embodiment, the cover 2 constitutes an inspection door panel for opening and closing an opening 6 that constitutes an inspection door provided in the ceiling.
In this embodiment, as shown in FIG. 3, the opening 6 is partitioned by a plurality of ceiling panels 2A. The opening 6 has a substantially rectangular shape when viewed in the vertical direction (panel thickness direction), which is the opening direction. The opening 6 includes two ceiling panels 2A, 2A spaced apart in a first direction orthogonal to the vertical direction, and spaced apart in a second direction orthogonal to the vertical direction and the first direction. It is partitioned so as to be surrounded on all four sides by two ceiling panels 2A, 2A.

A first edge portion 7 on one side in the first direction of the four peripheral edges defining the opening 6 is constituted by a second end portion 4A on the other side in the first direction of the ceiling panel 2A on one side in the first direction. there is A second edge portion 8 on the other side in the first direction of the four peripheral edges is formed by a first end portion 3A on the one side in the first direction of the ceiling panel 2A on the other side in the first direction. In addition, the second direction side edges of the four peripheral edges are constituted by the held end portions 5A, 5A as the second direction end portions of the ceiling panels 2A, 2A on both sides in the second direction facing each other. It is
These ceiling panels 2A are held by ceiling joists 9, 9 which constitute ceiling bases which are long and extend in the first direction and are arranged parallel to each other at intervals in the second direction.

The joists 9 may be wooden joists, but in this embodiment, they are made of steel made of a ferromagnetic material. Such a joist 9 may be made of a light iron material and constitute a so-called light ceiling base (steel ceiling base). In addition, the joist 9 may be of a channel steel shape (channel shape) that opens upward, and is provided with a lip portion formed so as to be folded back on the upper end of both side walls. It's okay. In addition, a plurality of joists 9 are arranged in parallel in the second direction at substantially equal intervals (at substantially equal pitches) to form a ceiling base structure.
In addition, as the steel ceiling base, the steel joist supports are arranged in parallel in a long shape extending in the second direction at substantially equal intervals in the first direction (at substantially equal pitch). 9 may be used. The ceiling joist receiver may be of a channel shape (channel shape) that opens sideways, or may be configured to support the ceiling joist 9 via a known clip as appropriate. In addition, as the steel ceiling base, it is equipped with a joist joint that joins the joists 9, 9 adjacent in the longitudinal direction, and a joist joint that joins the joist supports that are adjacent in the longitudinal direction. It's okay. The steel ceiling base may be provided with a hanger for suspending and supporting the ceiling joist support, or with a suspension bolt inserted through an insertion hole of the hanger and fixed with a nut.

The lid 2 according to this embodiment may constitute the ceiling panel device 1 together with the ceiling panel 2A. Moreover, the lid 2 and the ceiling panel 2A may be constructed as ceilings of relatively small buildings such as residences and offices, and relatively large various types of buildings such as gymnasiums, halls, shopping malls, factories, and schools. It may be constructed as a ceiling of a building.
The lid 2 and ceiling panel 2A may have a mass per unit area (1 m ² ) of 2.0 kg or less, preferably 1.0 kg or less, more preferably 0 kg or less. .78 kg or less may be used. In addition, the mass per unit area (1 m ² ) of the lid ² and ceiling panel 2A is 2 The mass may be set appropriately so as to be 0 kg or less.
Further, the lid body 2 and the ceiling panel 2A are provided with a lid body 10 and a panel body 10A each having a rectangular flat plate shape. In this embodiment, the lid body 10 of the lid body 2 and the panel body 10A of the ceiling panel 2A have the same configuration. That is, the lid main body 10 and the panel main body 10A have the same size and shape and the same layer configuration. With such a configuration, the lid body 10 of the lid body 2 and the panel body 10A of the ceiling panel 2A, which constitute the inspection door panel, have the same appearance, and the lid body 2 can be made inconspicuous.

The lid main body 10 and the panel main body 10A are substantially rectangular in plan view (in the thickness direction). The lid main body 10 and the panel main body 10A may be substantially rectangular in plan view, but are substantially square in the illustrated example. In addition, the size of the lid body 10 and the panel body 10A in a plan view may be an appropriate size from the viewpoint of handleability, workability, etc. For example, the length of one side is 0.3 m or more. 2.0 m or less may be used. In the substantially square lid body 10 and panel body 10A, the length of one side may be 0.4 m or more and 1.5 m or less, and may be about 0.9 m to 1.2 m. Anything is fine. Further, the lid body 10 and the panel body 10A having a substantially rectangular shape may have a short side length of 0.3 m or more and a long side length of 2.0 m or less. Also, the thickness of the lid body 10 and the panel body 10A may be, for example, about 3.0 mm to 15.0 mm, depending on the layer structure and the like.

The lid body 10 and the panel body 10A may be made of a gypsum board, a calcium silicate board, or the like, but in the present embodiment, as shown in FIG. It is said to be composed. With such a configuration, the lid body 10 and the panel body 10A can be made lighter than when the lid body 10 and the panel body 10A are made of a wooden board, a gypsum board, or the like.
Examples of the foamed resin base material 11 include those formed from resin compositions such as polyurethane resin, polystyrene resin, polyethylene resin, polypropylene resin, phenol resin, and epoxy resin. Examples of the fiber base material 11 include those formed from mineral fibers such as glass wool and rock wool. In the illustrated example, the base material 11 is a foamed resin layer. The base material 11 occupies most of the lid body 10 and the panel body 10A, and may have a thickness of, for example, about 80% to 99% of the thickness of the lid body 10 and the panel body 10A.
Further, the lid main body 10 and the panel main body 10A are configured such that a surface layer 12 is provided on one side in the thickness direction of the base material 11, which is the indoor side. The surface layer 12 may include a flame-retardant layer.

The flame-retardant layer as described above may have an appropriate structure so that the lid 2 and ceiling panel 2A meet the technical standards regarding the performance required for non-combustible materials and the like stipulated in the Building Standards Act. For example, the lid 2 and the ceiling panel 2A may be configured to meet the standard of "flame-retardant material" in the technical standards, preferably, those configured to meet the standard of "quasi-noncombustible material" or, more preferably, one configured to meet the criteria for "noncombustible materials." Further, for example, the flame-retardant layer may be a thin foil-shaped aluminum sheet.
Further, the surface layer 12 may be provided with a reinforcing layer containing reinforcing fibers such as glass fibers. The reinforcing layer may be a reinforcing fiber sheet such as glass cloth, or a fiber-reinforced resin layer such as a glass fiber-reinforced resin layer in which a reinforcing fiber sheet is impregnated with a resin. In addition, the surface (indoor side) facing the lower side (indoor side) of the surface layer 12 may be a decorative surface that has been subjected to appropriate surface decorative treatment such as attachment of a decorative sheet, printing, painting, etc. Alternatively, it may be a base surface to which an appropriate decorative sheet is adhered.

Further, the lid main body 10 and the panel main body 10A are configured such that a reinforcing layer 13 is laminated on the back side of the base material 11 (ceiling base side). With such a configuration, it is possible to suppress sagging by the reinforcing layer 13 on the back side while reducing the weight by the base material 11 as described above. The reinforcing layer 13 may be a reinforcing fiber sheet such as glass cloth, or a fiber-reinforced resin layer such as a glass fiber-reinforced resin layer in which a reinforcing fiber sheet is impregnated with resin.
Further, the lid body 10 and the panel body 10A are configured such that edge layers are provided on the four side edge surfaces of the substrate 11 . This end face layer may have the same structure as the surface layer 12 . Further, the edge layer may be provided continuously from the surface layer 12, or may be provided separately in the form of an edge sheet. In addition, the drawings show an example in which a watermark-like gap is provided between the end surfaces of the lid body 10 and the panel body 10A that are adjacent in the first direction and the second direction (Fig. 2(a), ( b) and FIG. 4(a)). This gap may be about 1 mm to 15 mm.

As shown in FIGS. 2(a), 4(a) and 4(b), the lid 2 is rotatable so that the first end 3 in the first direction moves toward the first edge 7 defining the opening 6. retained. In this embodiment, the first end portion 3 of the lid body 2 is detachably hooked and held on the hooked portion 23A provided on the second end portion 4A of the ceiling panel 2A constituting the first edge portion 7. It has a configuration in which a hook portion 16 is provided. In addition, the first end portion 3A of each ceiling panel 2A is also detachably hooked and held with respect to the hooked portion 23A provided at the second end portion 4A of the ceiling panel 2A adjacent in the first direction. A hook portion 16 similar to that of the lid body 2 is provided.
In addition, as shown in FIGS. 2A and 2B, the second end 4 of the lid body 2 in the first direction has a to-be-locked portion provided on the side of the second edge 8 that defines the opening 6 . A locking portion 30 that is locked to the portion 44 is provided.

Further, in this embodiment, the lid body 2 is configured such that the held end portions 5, 5 as the second direction side end portions are held by the joists 9, 9. As shown in FIG. In addition, in this embodiment, magnets 15, 15 to be attracted to the attracted portions of the joists 9, 9 are provided on the back side of the held end portions 5, 5 on both sides of the lid 2 in the second direction. there is With such a configuration, the hooking portion 16 of the first end portion 3 is hooked to the hooked portion 23A of the ceiling panel 2A adjacent in the first direction, and the held end portions 5, 5 on both sides in the second direction are hooked. The magnets 15, 15 can be attracted to the attracted portions of the joists 9, 9 to attach (close) the lid 2 or temporarily fix it. As a result, even when the lid body 2 has a large size similar to that of the ceiling panel 2A as in the present embodiment, the lid body 2 can be easily installed. Magnets 15 and 15 to be attracted to the attracted portions of the joists 9 and 9 are also provided on the back side of the held end portions 5A and 5A as the second direction side end portions of each ceiling panel 2A, similarly to the lid body 2. 15 are provided.

As shown in FIG. 1(a), the magnets 15 are provided at a plurality of locations (five locations in the figure) at the held end portion 5 at intervals in the first direction. The magnet 15 may be configured to hold (temporarily hold) the lid 2 by being attracted to the joists 9, 9 on both sides in the second direction. Alternatively, the magnet 15 may be a neodymium magnet having a relatively large magnetic force. The size and the number of the magnets 15 to be installed are appropriately determined from the standpoint of holdability (temporary holdability) of the lid body 2, from the standpoint of suppressing sagging of the lid body 2 in the middle of the first direction, from the standpoint of weight reduction, and the like. may be the size or the number of installed units.
Further, the figure shows an example in which the magnet 15 is fixed to the held end portion 5 via a holding member 14 that holds the magnet 15 . The holding member 14 may be a resin molded product made of a synthetic resin material and configured to hold the magnet 15 so that the magnet 15 does not come into direct contact with the joist 9 . Also, the holding member 14 may be fixed to the held end portion 5 by a suitable adhesive, adhesive material, or fastener such as a screw.

The magnet 15 is not limited to one fixed to the held end portion 5 via the holding member 14, and may be directly fixed to the held end portion 5 or embedded. It can be anything.
In addition, when the joist 9 is made of a ferromagnetic material as described above, the attracted portion of the joist 9 attracted by the magnetic force of the magnet 15 is the entire lower surface (indoor side surface) of the joist 9. Become. In addition, instead of such a mode, a suitable sheet-shaped magnet, sheet-shaped ferromagnetic material, etc. is provided as a part to be attracted in an attached or embedded form on the lower surface side of the joist 9 made of a non-magnetic material. may be In addition, instead of or in addition to such a magnet 15, hook-and-loop fasteners or adhesives can be used as the held portions for holding the held ends 5, 5 on both sides of the lid body 2 in the second direction by the joists 9, 9. It may be a material or the like, and furthermore, a configuration in which such a held portion is not provided may be employed.

As shown in FIG. 1A, in the present embodiment, the hooking portions 16 of the lid body 2 are provided at a plurality of locations (four locations in the figure) at the first end portion 3 at intervals in the second direction. It is Since these hooking portions 16 have the same configuration, one hooking portion 16 will be described below as an example.
As shown in FIGS. 1(a) and 1(b), the hook portion 16 is located at the leading end portion of the extending portion extending outward in the first direction from the first end portion 3 of the lid body 10. , and a hook-shaped portion 17 formed so as to be bent toward the room side and further folded back inward in the first direction. Further, as shown in FIG. 4(a), the hooking portion 16 has a fixing piece portion 16a fixed to the first end portion 3 of the lid body 10 (see also FIG. 6(a)). The fixing piece portion 16a is configured to be inserted into the layer of the lid body 10 through a cut portion opened on the back surface of the first end portion 3. As shown in FIG. In addition, a holding member is disposed along the back surface of the first end portion 3 and holds the back surface side layer (layer to be sandwiched) 13a of the lid body 10 so as to be sandwiched between the fixing piece portion 16a and the fixing piece portion 16a. A strip 18 is provided. The illustrated example shows an example in which the holding piece portion 18 is provided separately from the fixed piece portion 16a. Further, a fastener such as a screw which penetrates the holding piece portion 18 is attached to the fixed piece portion 16a. With such a configuration, in a state in which the sandwiched layer 13a is sandwiched between the fixed piece portion 16a and the holding piece portion 18, the hook portion 16 is held at the first end portion by the fastener fixed to the fixed piece portion 16a. 3, it can be fixed mechanically.

The sandwiched layer 13 a may be formed by the reinforcing layer 13 on the back side of the lid body 10 . A portion of the substrate 11 may be included in the sandwiched layer 13a. In addition, although the illustrated example shows an example in which the fixing piece portion 16a extending in the first direction is inserted into the layers of the lid body 10 via the cut portion extending in the second direction, the embodiment is limited to such an aspect. can't Further, in the illustrated example, a concave portion for receiving the fixing piece portion 16a is provided on the back side of the lid body 10 so that the fixing piece portion 16a does not protrude from the back surface of the lid body 10, but such a case is shown. It is not limited to modes.
Further, the fixing piece portion 16a may be provided with a fixing hole to which the shaft portion of the fixture is fixed. Such a fixing hole may be a female threaded hole into which the shaft of the fastener is screwed, or a prepared hole into which the shaft of the fastener is screwed. Further, the holding piece portion 18 may be provided with an insertion hole through which the shaft portion of the fastener is inserted. In addition, although the example in the drawing shows an example in which the holding piece portion 18 has a substantially disk shape, it is not limited to such an aspect. Further, the mode of fixing the hook portion 16 to the lid body 10 is not limited to such a configuration, and various other modifications are possible.

The extending portion of the hook portion 16 is provided in a series at the first direction outer end portion of the fixed piece portion 16a. This extending portion extends outward in the first direction from the upper end of the rising piece provided so as to rise upward (toward the joist 9 side) from the first direction outer end of the fixed piece 16a. It is set to extend.
The hook-shaped portion 17 is provided so that its tip faces inward in the first direction. The hook-shaped portion 17 is provided so that the tip, which is the lowest end, is located slightly above the back surface of the lid body 10 (on the side of the ceiling joist 9). Further, in the example of the drawing, the hook-shaped portion 17 is shown as an example in which it is substantially U-shaped when viewed in the second direction. , a shape having a plurality of bending portions, or the like. It should be noted that the hook portion 16 may be appropriately formed in a series by pressing, bending, or the like. Alternatively, the hook portion 16 may be made of an appropriate metallic material.

A hooked portion 23A on which the hooking portion 16 of the lid 2 is hooked is provided so as to extend in the second direction at the second end portion 4A of the ceiling panel 2A. It is provided in a reinforcing portion 20A fixed to 9 by a fastener. With such a configuration, the second end portion 4A of the ceiling panel 2A that constitutes the first edge portion 7 that partitions the opening 6 can be reinforced by the reinforcing portion 20A, It is possible to suppress the sagging of the second end 4A side portion of the ceiling panel 2A that is passed over. In addition, both the second direction end portions of the second end portion 4A of the ceiling panel 2A can be fixed to the joists 9, 9 on both sides by fasteners via the reinforcing portion 20A, thereby improving the fixing strength. can be done. In addition, the hooking portion 16 of the lid body 2 can be hooked and held on the reinforcing portion 20A of the ceiling panel 2A fixed to the joists 9 and 9 in this way, and the first end portion 3 side of the lid body 2 can be held. It can be held stably. The reinforcing portion 20A is provided not only on the ceiling panel 2A forming the first edge portion 7 that partitions the opening 6, but also on the second end portion 4A of the other ceiling panel 2A.

As shown in FIGS. 3 and 4A, the reinforcing portion 20A is elongated in the second direction, and includes a base plate-like portion 21A along the back surface of the second end portion 4A and the base plate-like portion 21A. and a mounting portion 22A provided in the portion 21A for mounting the reinforcing portion 20A to the panel main body 10A.
The base plate-like portion 21A is provided over substantially the entirety of the panel body 10A in the second direction, and has a plate shape whose thickness direction is along the thickness direction of the panel body 10A. In this embodiment, the base plate portion 21A is provided over the entire second direction of the panel main body 10A. Further, in the example of the drawing, an example is shown in which a plurality of long holes having a long diameter in the second direction are provided in the base plate portion 21A at intervals in the second direction. In addition, the portion of the base plate portion 21A that protrudes from the end surface of the second end portion 4A outside the portion provided with the long hole in the first direction is a portion of the panel main body 10A and the lid main body 10 that are adjacent in the first direction. It is arranged so as to partition the bottom side of the gap formed therebetween. In addition, on the bottom side of the gap formed between the panel main body 10A and the lid main body 10 adjacent in the second direction, the lower surface of the joist 9 is arranged to partition the bottom side of the gap. there is

The attachment portion 22A is provided in series so as to extend inward in the first direction from the first direction inner end portion of the base plate portion 21A, and has the same thickness as the base plate portion 21A. It is In this embodiment, the mounting portion 22A is fixed to the second end portion 4A via the mounting fixture 19. As shown in FIG. Further, in the illustrated example, the mounting portion 22A and the mounting fixture 19 are provided at a plurality of locations (three locations in the illustrated example) at intervals in the longitudinal direction of the base plate portion 21A.
The fixture 19 has an insertion piece 19a that is inserted into the layers of the panel body 10A through a cut that opens on the back surface of the second end 4A. The attachment portion 22A is arranged along the back surface of the second end portion 4A, and is configured to sandwich and hold the back surface side layer (sandwiched layer) 13a of the panel main body 10A with the insertion piece portion 19a. . Further, in the illustrated example, the mounting fixture 19 is provided with a holding piece portion 19b that holds the mounting portion 22A so as to be sandwiched by the insertion piece portion 19a. A fixing tool such as a screw passing through the holding piece portion 19b and the mounting portion 22A is fixed to the insertion piece portion 19a. With such a configuration, the reinforcing portion 20A can be mechanically fixed to the second end portion 4A in substantially the same manner as described above.

The insertion direction tip of the insertion piece 19a of the fixture 19 is tapered when viewed in the thickness direction of the insertion piece 19a (see FIG. 7). Further, the holding piece portion 19b of the fixture 19 is provided with a gripping portion which is provided so as to rise toward the upper side (toward the joist 9 side).
The inserting piece 19a and the holding piece 19b of the mounting fixture 19 are formed in series by bending or the like so that the mounting portion 22A and the sandwiched layer 13a can be inserted between them. can be anything. Further, the insertion piece portion 19a may be provided with a fastening hole to which the shaft portion of the fastener is fastened. Such a fastening hole may be a female threaded hole into which the shaft portion of the fastener is screwed, or a prepared hole into which the shaft portion of the fastener is screwed. Further, the holding piece portion 19b and the attachment portion 22A may be provided with insertion holes through which the shaft portion of the fixture is inserted. Further, the mode of fixing the reinforcing portion 20A to the panel main body 10A is not limited to such a configuration, and various other modifications are possible.

The hooked portion 23A of the reinforcing portion 20A is hooked to the lid 2 in a state in which the first end 3 of the lid 2 adjacent in the first direction is positioned above the second end 4. It is configured such that the portion 17 can be hooked and held. With such a configuration, the hook-shaped portion 17 of the lid body 2 is hooked from the lower side with the first end portion 3 side facing upward to the hooked portion 23A of the ceiling panel 2A that has already been constructed. The body 2 can be held. As a result, it is possible to improve the mountability compared to a device that needs to be moved horizontally while held horizontally at a high place. In addition, from the state in which the first end portion 3 side is held in this way, the second end portion 4 side is raised by rotating around the first end portion 3 side as a fulcrum, and is engaged with an engaged portion 44 described later. The portion 30 can be locked. In particular, in this embodiment, since the magnets 15, 15 are provided at the held ends 5, 5 as described above, the second end 4 side is moved from the state where the first end 3 side is held. When lifted, the lid body 2 can be easily held (temporarily held) on the joists 9, 9 by the magnets 15, 15 of the held end portions 5, 5. As shown in FIG.

The reinforcing portion 20A has a lid body 2 that protrudes outward in the first direction from the back side of the second end portion 4A of the panel body 10A, is fixed to the joist 9, and is adjacent to the lower side in the first direction. A fixed piece portion 24A is provided. With such a configuration, the fastener is fixed toward the ceiling joist 9 from the indoor side (lower side) via the fixing piece portion 24A projecting outward in the first direction from the second end portion 4A. The ceiling panel 2A can be fixed to the joist 9. In addition, the first end of the lid 2 adjacent in the first direction to the hooked portion 23A of the second end portion 4A of the ceiling panel 2A fixed to the ceiling panel 9 via the fixing piece portion 24A in this way The hook portion 16 of the portion 3 can be hooked. Further, since the fixed piece portion 24A is configured to protrude outward in the first direction from the back surface side of the panel body 10A, when the lid body 2 adjacent in the first direction is installed, the lid body 2 can The fastener can be made inconspicuous from the surface side.

The contact surface of the fixed piece portion 24A that contacts the joist 9 and the contact surface of the magnet 15 (holding member 14 in this embodiment) that contacts the joist 9 are substantially coplanar. It is In addition, the fixed piece portion 24A is arranged between the fixed piece portion 24A and the rear surface of the lid body 2 (lid main body 10) adjacent in the first direction arranged on the lower side of the fixed piece portion 24A. It is provided so that a gap larger than the dimension along the axial direction of the head of the fixture fixed to 9 is formed. The fixed piece portion 24A is provided so as to rise upward (toward the joist 9 side) from the tip portion of the base plate portion 21A provided so as to protrude from the end face of the second end portion 4A. It is provided so as to extend outward in the first direction from the upper end of the piece. Further, the fixed piece portion 24A is provided over the entire length of the reinforcing portion 20A. Insertion holes 24Aa, 24Aa through which fasteners for fixing the reinforcing portion 20A to the joists 9, 9 on both sides are inserted are provided at both ends in the longitudinal direction (second direction) of the fixed piece portion 24A. Further, these insertion holes 24Aa, 24Aa are elongated holes extending in the second direction. Further, in the illustrated example, a plurality of elongated holes extending in the second direction at intervals in the second direction are provided in the fixed piece portion 24A.

As shown in FIGS. 4A and 4B, the hooked portion 23A is provided at the tip of a base plate-shaped portion 21A that protrudes from the end face of the second end portion 4A. The hooked portion 23A has a plate-like shape with the thickness direction along the first direction, and is provided so as to rise from the base plate-like portion 21A toward the upper side (toward the joist 9 side). The projecting dimension of the hooked portion 23A is set to an appropriate dimension so that the hook-shaped portion 17 of the hooking portion 16 can be hooked and held. In the illustrated example, part of the above-described rising piece portion is used as the hooked portion 23A. Further, an insertion hole 25A through which the hook-shaped portion 17 of the hook portion 16 is inserted is provided at the upper end portion of the rising piece portion and the portion of the fixed piece portion 24A on the side of the rising piece portion. The dimensions of the insertion hole 25A and the hooked portion 23A along the second direction are larger than the dimensions of the hook portion 16 along the second direction. In addition, the insertion hole 25A and the hooked portion 23A are provided at a plurality of locations along the second end portion 4A of the panel body 10A at intervals in the second direction so as to be positioned according to the hooked portion 16 ( , four places) (see FIG. 3). Note that the reinforcing portion 20A may be formed in a series from an appropriate metallic material by pressing, bending, or the like. Further, as a mode in which the first end portion 3 of the lid body 2 is rotatably and detachably held with respect to the second end portion 4A of the ceiling panel 2A constituting the first edge portion 7 that defines the opening 6, , various modifications are possible without being limited to the embodiments described above. Further, instead of the mode in which the first end portion 3 of the lid body 2 is detachably held with respect to the second end portion 4A of the ceiling panel 2A, a mode in which it is non-detachably held by a connecting member such as a hinge may be used. good too.

As shown in FIGS. 9 and 10, the locking portion 30 of the lid body 2 is locked by a jig 49 inserted into the gap between the second end portion 4 and the second edge portion 8 that defines the opening 6. It has an operation portion 34 that is operated when the locked state with respect to the portion 44 is released. The locking portion 30 also has a knob portion 36 which is in a non-protruding position where it does not protrude from the gap in the locked state, and which is in a protruding position where it protrudes from the gap toward the surface side in the released state. With such a configuration, in the locked state, the operating portion 34 and the knob portion 36 do not protrude toward the front surface side, making them inconspicuous and improving the appearance. In addition, it is possible to open the lid body 2 that can be opened by releasing the locked state by gripping the knob portion 36 that is projected toward the surface side from the gap in the unlocked state. Also, when closing the lid body 2, the knob portion 36 can be gripped and closed, so that the opening/closing operability can be improved. As a result, even when the lid body 10 of the lid body 2 has the above-described layered structure in order to reduce the weight of the lid body 2 and has a structure in which dents or the like are likely to occur on the surface when pressed by a finger or the like, the knob portion can be easily removed. By gripping 36 and performing the opening/closing operation, deterioration of the design of the surface can be suppressed.

Further, in this embodiment, as shown in FIG. 1A, the locking portion 30 is provided on the reinforcing portion 20 provided to extend in the second direction along the second end portion 4 of the lid body 10. It is With such a configuration, the second end portion 4 side of the lid body 10 can be reinforced while the weight of the lid body 10 is reduced. Deformation or the like of the lid body 10 when opening and closing the lid can be suppressed. In addition, in this embodiment, one locking portion 30 is provided at substantially the center in the longitudinal direction of the reinforcing portion 20 elongated in the second direction.
As shown in FIGS. 1(b) and 7, the reinforcing portion 20 is elongated in the second direction and extends along the back surface of the second end portion 4, as shown in FIG. 1(b) and FIG. and a mounting portion 22 provided on the base plate-like portion 21 for mounting the reinforcing portion 20 to the lid body 10 .

The base plate-like portion 21 is provided over substantially the entirety of the lid body 10 in the second direction, and has a plate-like shape with the thickness direction along the thickness direction of the lid body 10 . In this embodiment, the base plate portion 21 is provided over the entirety of the lid body 10 in the second direction. The reinforcing portions 20 and 20A provided over substantially the entirety of the lid body 10 and the panel body 10A in the second direction have a length of 7/10 or more of the dimension along the second direction of the lid body 10 and the panel body 10A. It may be the one that has been specified. Further, in the example of the drawing, similarly to the above, an example is shown in which a plurality of long holes having a long diameter in the second direction are provided in the base plate portion 21 at intervals in the second direction.

Further, at the first direction outer end portion of the base plate-shaped portion 21, an end surface covering piece hangs down toward the lower side (inside the room) and is arranged along the end surface of the second end portion 4 of the lid body 10. A portion 23 is provided in series. In other words, unlike the reinforcing portion 20A of the ceiling panel 2A, the base plate-like portion 21 does not have a portion that protrudes outward in the first direction from the end surface of the second end portion 4 . With such a configuration in which the end surface covering piece portion 23 is provided, the strength of the reinforcing portion 20 can be improved. Moreover, it is possible to prevent the lid body 10 from being damaged by the jig 49 inserted into the gap between the second end portion 4 and the second edge portion 8 .
The end face covering piece portion 23 is formed in a plate shape with a thickness direction along the first direction. The end face covering piece 23 may be provided over at least a portion near the engaging portion 30 , or may be provided over substantially the entire base plate portion 21 . In addition, although the figure shows an example in which the lower end of the end surface covering piece portion 23 is positioned slightly above the interior side surface of the lid body 10, the present invention is not limited to such an aspect.

The attachment portion 22 is provided in series so as to extend inward in the first direction from the first direction inner end portion of the base plate portion 21 in the same manner as described above, and has the same thickness as the base plate portion 21 . It is said to be part-shaped. As shown in FIGS. 2(b) and 7, this mounting portion 22 is fixed to the second end portion 4 via a mounting fixture 19 similar to that described above. With such a configuration, the reinforcing portion 20 can be mechanically fixed to the second end portion 4 in substantially the same manner as described above.
Further, similarly to the above, an example is shown in which the mounting portions 22 and the mounting fixtures 19 are provided at a plurality of locations (three locations in the figure) spaced apart in the longitudinal direction of the base plate-like portion 21 . Also, one of the plurality of mounting portions 22 and mounting tools 19 is provided substantially at the central portion where the engaging portion 30 is provided. The manner in which the reinforcing portion 20 is fixed to the lid body 10 is not limited to such a configuration, and various modifications are possible. Alternatively, the reinforcing portion 20 may be formed in series from an appropriate metallic material by pressing, bending, or the like.

As shown in FIGS. 5A and 9, the locking portion 30 is slidable along the second direction with respect to the base portion 25 fixed to the second end portion 4 and along the first direction. It is rotatably held around a shaft (support shaft) 27 . The engaging portion 30 is configured such that the knob portion 36 is brought to a projecting position as the engaging portion 30 rotates around the support shaft 27 . The base portion 25 prevents the rotation of the support shaft 27 when the locking portion 30 is slid in the second direction between the locking position and the unlocked position, while the locking portion is in the unlocked position. 30 is configured to allow rotation around the support shaft 27 . With such a configuration, the locking portion 30 is prevented from rotating about the support shaft 27 with respect to the base portion 25 fixed to the second end portion 4, and is positioned between the locking position and the position just before the release. It is held so as to be slidable in the second direction. As a result, when the engaging portion 30 is slid between the engaging position and the position before releasing, the knob portion 36 is in the non-protruding position, so that the knob portion 36 can be made inconspicuous. Further, by setting the locking portion 30 to the unlocked position and rotating the locking portion 30 around the support shaft 27 to move the knob portion 36 to the projecting position, the lid body 2 can be opened by gripping the knob portion 36 . can. In addition, for example, compared to the case where the lid 2 is pushed in the thickness direction to be unlocked, the insertion dimension of the jig 49 for operating the operation portion 34 can be effectively reduced. 49 can be suppressed from interfering with other members.

As shown in FIGS. 5A and 7, the base portion 25 is elongated in the second direction. The base portion 25 is fixed in a mounted state on the base plate portion 21 of the reinforcement portion 20 (see also FIG. 2(b), FIG. 9, etc.). In addition, fastening portions 26 and 26 of fasteners for fixing the base portion 25 to the reinforcing portion 20 are provided at both ends in the longitudinal direction of the base portion 25 . The base portion 25 has a substantially plate-like shape along the thickness direction of the lid including the fastening portions 26, 26 on both sides in the longitudinal direction. The figure shows an example in which these fixing portions 26, 26 are provided with a fixing hole such as an internal thread hole or a prepared hole for fixing the shaft portion of the fastener so as to open in the thickness direction of the lid. there is The reinforcing portion 20 is provided with base fixing piece portions 24 , 24 arranged so as to be superimposed on the fastening portions 26 , 26 . These base fixing piece portions 24, 24 are arranged from the upper end portion of the rising piece portion provided so as to rise from the first direction inner end portion of the base plate portion 21 toward the upper side (toward the joist 9 side). It is provided so as to extend toward the direction outside. Further, these base fixing piece portions 24, 24 are provided with insertion holes through which the shaft portions of the fasteners are inserted so as to correspond to the fastening holes of the fastening portions 26, 26. As shown in FIG.

The base portion 25 is fixed on the base plate-like portion 21 of the reinforcing portion 20, and the outer surface in the first direction is the surface of the end surface covering piece portion 23 of the reinforcing portion 20, as shown in FIG. 2(b). are provided so as to be substantially coplanar with (see also FIG. 11).
As shown in FIGS. 5A and 7, the base portion 25 is provided with a support shaft 27 that rotatably holds the engaging portion 30. As shown in FIGS. The support shaft 27 is positioned substantially in the center of the base portion 25 in the longitudinal direction and protrudes outward in the first direction. In addition, the support shaft 27 is provided at a portion provided so as to protrude upward (toward the joist 9 side) from the first direction inner portion of the substantially plate-like base portion 25 in the longitudinal direction substantially central portion. is provided.

In the present embodiment, the base portion 25 also includes, as shown in FIG. 9, an abutted portion provided on the locking portion 30 when the locking portion 30 is slid from the unlocking front position to the unlocking position. A guide portion 29 is provided that abuts on the knob 31a and rotates the knob portion 36 to the protruding side. With such a configuration, when the engaging portion 30 is slid from the position before the release to the releasing position, the engaging portion 30 rotates to the side where the knob portion 36 protrudes due to the guiding action of the guide portion 29 of the base portion 25. Thus, it is possible to improve the operability of rotating the knob 36 toward the projecting position. In this embodiment, when the knob 36 is displaced from the protruding position to the non-protruding position, the guide portion 29 is brought into contact with the contacted portion 31a provided on the locking portion 30, and is positioned in front of the non-protruding position. It also functions as a braking portion that brakes the rotation of the locking portion 30 toward the non-protruding position. With such a configuration, the knob 36 displaced to the non-projecting position side is braked, and it becomes necessary to displace the knob 36 to the non-projecting position against this braking. As a result, the knob 36 protrudes at a position where the rotation of the knob 36 toward the non-protruding position is insufficient and the guide portion 29 brakes the knob 36 . As a result, the operator can be made to recognize that the knob portion 36 is not in the non-protruding position, that is, the locking portion 30 is not in the locking position. In other words, the operator can be made to recognize that the work is incomplete, and can be urged to operate the locking portion 30 toward the locking side. The specific configurations of the guide portion 29 and the contacted portion 31a will be described later.

As shown in FIGS. 8(a) and 9(a), the locking portion 30 is elongated in the second direction in the locked state, and is shown in FIGS. 8(c), 9(c) and 10. As shown in Fig. 2, the lid is elongated in the thickness direction of the lid in the released state. The engaging portion 30 has a substantially plate shape with a thickness direction along the first direction. In the present embodiment, a shaft insertion hole 32 through which the support shaft 27 provided on the base portion 25 is inserted is provided in the locking portion 30 so as to penetrate in the first direction. Further, the shaft insertion hole 32 is elongated in the second direction when the locking portion 30 is locked. In other words, the locking portion 30 extends in the second direction between the locking position and the near release position with respect to the base portion 25 along the longitudinal direction of the shaft insertion hole 32 through which the support shaft 27 of the base portion 25 is inserted. can be slid freely. The state in which the support shaft 27 is positioned at one end in the longitudinal direction of the shaft insertion hole 32 of the locking portion 30 is defined as the locking position of the locking portion 30 (the non-protruding position of the knob portion 36). On the other hand, the state in which the support shaft 27 is positioned at the other end in the longitudinal direction of the shaft insertion hole 32 of the locking portion 30 is the release position of the locking portion 30 (protruding position of the knob portion 36). Note that, instead of such a mode, a configuration in which a shaft is provided on the locking portion 30 side and a shaft insertion hole is provided on the base portion 25 side may be adopted.

The shaft insertion hole 32 of the locking portion 30 is provided at substantially the center in the longitudinal direction of the locking portion 30 elongated in the second direction in the locked state. The locking portion 30 and the base portion 25 are connected to each other in a state in which movement in the first direction is restricted by a fixture 39 such as a screw secured to the support shaft 27 through the shaft insertion hole 32 . ing. In the illustrated example, the inner side of the shaft insertion hole 32 in the first direction has a smaller diameter than the outer side in the first direction, and a stepped bottom facing the outer side in the first direction is provided in the middle of the axial direction of the shaft insertion hole 32, and this stepped bottom is fixed. An example is shown in which the tool 39 is sandwiched between the brim-like portion of the head portion of the tool 39 and the base end portion of the support shaft 27 . It should be noted that the aspect of connecting the locking portion 30 and the base portion 25 so as not to move in the first direction is not limited to this aspect, and various other modifications are possible.

Further, as shown in FIGS. 5 and 9, the locking portion 30 is brought into contact with the supporting surface portion 28 provided on the base portion 25 when sliding between the locking position and the position before releasing. A supported surface portion 31 whose rotation is restricted is provided. The support surface portion 28 of the base portion 25 is provided so as to face upward (toward the joist 9 side) and to extend in the second direction below the support shaft 27 (inside the room). In the illustrated example, the support surface portion 28 is formed as a recess opening upward and outward in the first direction in the first direction outer portion of the substantially plate-shaped base portion 25 as described above. An example of the bottom surface is shown. In other words, the first direction outside portion of the base portion 25 is made thinner than other portions so as to form a recess in the base portion 25 for receiving the portion of the locking portion 30 provided with the supported surface portion 31. It is configured.

The supported surface portion 31 of the locking portion 30 is provided so as to face downward (inside the room) in the locked state and extend in the second direction below the shaft insertion hole 32 . The supported surface portion 31 is formed on the outer periphery of a protrusion provided so as to protrude inward in the first direction from the surface of the engaging portion 30 facing inward in the first direction and surround the shaft insertion hole 32 . composed of faces. In a state in which the supported surface portion 31 and the supporting surface portion 28 face each other and are arranged substantially parallel to each other, rotation of the locking portion 30 about the support shaft 27 with respect to the base portion 25 is suppressed. As shown in FIGS. 9(c) and 10, the locking portion 30 has a handle 36 that engages with the support shaft 27 while facing the support surface portion 28 of the base portion 25 with the knob portion 36 at the projecting position. A stopper surface 31b is provided to restrain the downward movement of the stop portion 30 . The stopper surface 31b is provided so as to be continuous with the other side of the supported surface portion 31 in the second direction (the other side of the shaft insertion hole 32 in the major axis direction), and faces the other side in the second direction when the knob portion 36 is in the non-protruding position. In addition, the knob 36 is provided so as to face downward at the projecting position. A boundary portion between the supported surface portion 31 and the stopper surface 31b is formed in a projecting curved surface shape so that the knob portion 36 can be displaced between the non-projecting position and the projecting position when the locking portion 30 is in the released state. The stopper surface 31b is configured to prevent displacement of the knob 36 at the projecting position to a side different from the non-projecting side.

Further, in the present embodiment, a contact portion 31 a is provided so as to be continuous with the supported surface portion 31 . The abutted portion 31a is provided so as to be connected to one side of the supported surface portion 31 in the second direction (one side of the shaft insertion hole 32 in the longitudinal direction), and has a projecting curved surface shape.
The guide portion 29 of the base portion 25 is provided so as to come into contact with the contacted portion 31a of the locking portion 30 at the position before releasing, as indicated by the chain double-dashed line in FIG. 9(b). The guide portion 29 is provided so as to be positioned on one side of the support surface portion 28 in the second direction (one side of the shaft insertion hole 32 in the major axis direction) (see also FIG. 5A and the like). Further, the upper surface of the guide portion 29 is located above the support surface portion 28 so as to raise the abutted portion 31a when the locking portion 30 moves from the position before the release to the release side, and supports the contact portion 31a. It has an inclined surface that slopes upward with increasing distance from the surface portion 28 .
Further, the guide portion 29 is provided with a gap from the support surface portion 28, and extends from the inner wall defining the one side in the second direction of the recess of the base portion 25 toward the other side in the second direction. It is provided in the shape of a cantilever so as to protrude. The guide portion 29 is configured to be slightly elastically deformed by the contact of the contacted portion 31a.

With the configuration described above, when the locking portion 30 is moved from the position before the release to the release side, as shown by the solid line in FIG. 29 and displaces upward. Along with the upward displacement of the abutted portion 31a, the knob portion 36 is displaced from the non-protruding position to the downward protruding side (see also FIGS. 8A and 8B). As a result, a knob portion 36, which will be described later, protrudes toward the interior of the room from the surface of the lid body 10 facing toward the interior of the room, and the knob portion 36 can be pulled out with fingers or the like.
On the other hand, when the knob portion 36 is displaced from the projecting side to the non-projecting side, as shown by the solid line in FIG. It abuts against the guide portion 29 and brakes the displacement to the non-protruding side. In this state, similarly to the above, the knob portion 36 protrudes toward the interior of the room from the surface of the lid body 10 facing toward the interior of the room. From this state, if the knob 36 is pushed in and displaced upward, the engaging portion 30 is released from the release position with the elastic deformation and guiding action of the guide portion 29 with which the abutted portion 31a abuts. It is displaced to the front position, and the knob part 36 is set to the non-protruding position.

Further, in the present embodiment, as shown in FIG. 9A, the locking portion 30 has a first movement suppressing portion 32a that suppresses the movement of the locking portion 30 to the release side in the locking position. is provided. With such a configuration, it is possible to suppress the movement of the locking portion 30 at the locking position to the release side. The first movement suppressing portion 32a also functions as a click feeling imparting portion that imparts a click feeling when the locking portion 30 is moved from the release side to the locking position. With such a configuration, it is possible to impart a sense of detent when moving the locking portion 30 from the release side to the locking position, so that the operator can recognize that the locking portion 30 has reached the locking position. can be made In the illustrated example, the first movement suppressing portion 32a is a projecting portion that protrudes in the opposite direction from the inner peripheral surface of the shaft insertion hole 32 on one side in the long diameter direction and is in contact with the outer peripheral surface of the support shaft 27. (see also FIG. 5(b)). The inner diameter between the first movement suppressing portions 32 a, 32 a may be slightly larger than the outer diameter of the support shaft 27 .

When the locking portion 30 is in the locked position, the support shaft 27 of the base portion 25 is brought into contact with the first movement suppressing portions 32a, 32a, and movement of the locking portion 30 with respect to the support shaft 27 toward the release side is restricted. When the operator operates to move the locking portion 30 from this locking position to the release side, the support shaft 27 relatively climbs over the first movement restraining portions 32a, 32a to release the locking portion 30. It is possible to move to the side.
On the other hand, if the operator operates to move the locking portion 30 from the release side toward the locking position, the support shaft 27 relatively overcomes the first movement suppressing portions 32a, 32a, thereby moving the locking portion. 30 can be moved to the locking position. Thus, when the support shaft 27 relatively climbs over the first movement suppressing portions 32a, 32a, a sense of moderation is imparted. It should be noted that the first movement suppressing portion 32a that suppresses the movement of the latching portion 30 at the latching position to the release side is not limited to the configuration described above, and various other modifications are possible. is.

In addition, in the present embodiment, as shown in FIGS. 9B and 9C, the locking portion 30 is provided with a second movement mechanism that suppresses the movement of the locking portion 30 to the locking side when the locking portion 30 is in the unlocked position. A restraining portion 32b is provided. With such a configuration, it is possible to suppress the movement of the locking portion 30 at the unlocked position to the locking side. The second movement suppressing portion 32b also functions as a click feeling giving portion that gives a click feeling when the locking portion 30 is moved from the release position to the release position. With such a configuration, it is possible to impart a sense of easiness when moving the engaging portion 30 from the position before the release to the releasing position, so that the operator can recognize that the engaging portion 30 has reached the released position. be able to. Further, the second movement suppressing portion 32b also functions as a braking portion that brakes the rotation of the engaging portion 30 toward the non-protruding position at a position before the non-protruding position in cooperation with the guide portion 29 described above. In the illustrated example, in substantially the same manner as described above, the second movement suppressing portions 32b protrude from the inner peripheral surfaces of the shaft insertion holes 32 on the other side in the major diameter direction, facing each other, and contact the outer peripheral surface of the support shaft 27. An example of a contacting projection is shown (see also FIG. 5(b)). The inner diameter between these second movement suppressing portions 32b, 32b may be slightly larger than the outer diameter of the support shaft 27 as described above.

When the engaging portion 30 is at the released position, the support shaft 27 of the base portion 25 is brought into contact with the second movement suppressing portions 32b, 32b, and movement of the engaging portion 30 with respect to the support shaft 27 toward the engaging side is restricted. When the operator operates to move the locking portion 30 from this release position to the locking side, the support shaft 27 relatively overcomes the second movement suppressing portions 32b, 32b, and the locking portion 30 is engaged. It is possible to move to the stop side. At this time, the engaging portion 30 is moved from the released position to the engaging side with the elastic deformation and guiding action of the guide portion 29 with which the abutted portion 31a abuts.
On the other hand, if the operator operates to move the locking portion 30 from the locking side toward the unlocking position, the support shaft 27 relatively overcomes the second movement suppressing portions 32b, 32b to move the locking portion. 30 can be moved to the release position. At this time, the knob portion 36 is displaced to the projecting side with the abutment of the abutted portion 31a against the guide portion 29 described above. In addition, when the support shaft 27 relatively climbs over the second movement suppressing portions 32b, 32b in this manner, a sense of moderation is imparted. It should be noted that the second movement suppressing portion 32b that suppresses the movement of the locking portion 30 at the unlocked position to the locking side is not limited to the configuration described above, and various other modifications are possible. is.

As shown in FIG. 9A, the operating portion 34 of the locking portion 30 is operable by a jig 49 inserted from below when the locking portion 30 is in the locking position. In the present embodiment, as shown in FIG. 5, the locking portion 30 of the operating portion 34 opens on the surface side which is one side in the thickness direction of the lid 2 at the locking position, and extends in the first direction. A penetrating receiving recess 35 is provided. With such a configuration, it is possible to slide the locking portion 30 in the second direction by inserting the jig 49 into the receiving recess 35 of the locking portion 30 at the locking position. Further, since the receiving recess 35 is penetrated in the first direction, it is possible to reduce the thickness of the operation portion 34 in the first direction. Further, as shown in FIG. 6(b), locking portions 30 extend in the thickness direction of the lid body 2 at the locking position on both side wall portions defining both sides of the receiving recess 35 in the second direction, It has a configuration in which receiving grooves 35b, 35b that open in directions facing each other are provided. With such a configuration, the side portion of the jig 49 can be engaged with the receiving groove 35b while the thickness is reduced as described above. Detachment or the like of the jig 49 from the can be suppressed.

Further, in this embodiment, as shown in FIG. 6(c), a receiving groove 35a is also provided in the bottom wall portion that defines the bottom side of the receiving recess 35. As shown in FIG. With such a configuration, the tip of the jig 49 can be engaged with the receiving groove 35a on the bottom side, and the jig 49 can be detached from the receiving recess 35 when the locking portion 30 is slid. can be suppressed more effectively.
The receiving recess 35 is opened at the operation side surface 33 facing downward when the locking portion 30 is locked, and penetrates the locking portion 30 in the thickness direction (first direction). In the illustrated example, the receiving recess 35 is provided closer to the knob 36 than the shaft insertion hole 32 is. Also, an example is shown in which the receiving recess 35 has a substantially rectangular shape when viewed in the thickness direction of the locking portion 30 .
The receiving groove 35a on the bottom side is provided so as to extend in the longitudinal direction of the locking portion 30, and has a substantially V-shaped groove shape when viewed in the longitudinal direction of the groove. The receiving grooves 35b, 35b on both side walls are substantially V-shaped when viewed in the longitudinal direction of the groove. A minus screwdriver may be used as the jig 49 inserted into the receiving recess 35 that constitutes the operation portion 34 . Further, the operation portion 34 and the receiving recess 35 constituting the operation portion 34 are not limited to those configured as described above, and various other modifications are possible.

As shown in FIGS. 1(b) and 2(b), the operation side surface 33 is provided so as to be substantially flush with the surface of the lid body 10 facing the interior when the locking portion 30 is in the locked state. ing. In this embodiment, as shown in FIG. 6(b), the operation side surface 33 is provided with a marking portion that serves as a reference when operating the operation portion 34 to the release side and the locking side. In the illustrated example, an arrow pointing to the release side and the "O" mark are provided as the release side indicating portion, and an arrow pointing to the locking side and the "C" mark are provided as the locking side indicating portion.
The knob portion 36 of the locking portion 30 is arranged so as not to project downward from the surface of the lid body 10 in the non-protruding position. On the other hand, as shown in FIGS. 10 and 11, the knob portion 36 projects downward from the surface of the lid body 10 at the projecting position and can be gripped. The knob portion 36 is provided so as to be positioned on the other side in the second direction of the shaft insertion hole 32 and extend toward the other side in the second direction when the locking portion 30 is locked. Further, the knob portion 36 is arranged along the first direction outer side of the base portion 25 at the non-protruding position, and is configured to be displaced between the non-protruding position and the protruding position on the first direction outer side of the base portion 25. It is The projecting dimension of the knob 36 at the projecting position and the vertical dimension at the non-projecting position may be set appropriately so that the user can easily grip the knob at the projecting position. It should be noted that the knob portion 36 is not limited to the configuration described above, and various other modifications are possible.

Further, in this embodiment, as shown in FIG. 11, on one side of the knob 36 in the thickness direction (first direction), there is a mark that serves as a reference when displacing the knob 36 to the projecting side and the non-projecting side. department. The figure shows an example in which a double-headed arrow pointing to the projecting side and the non-projecting side is provided as a marking part, an "O" mark is provided as a projecting side marking part, and a "C" mark is provided as a non-projecting side marking part. ing.
Further, as shown in FIG. 5, the grip portion 36 is provided with a locking recess 37 for receiving a locked portion 44, which will be described later. When the locking portion 30 is locked, the locking recess 37 opens toward the other side in the second direction (longitudinal direction outer side of the locking portion 30) and penetrates the knob portion 36 in the thickness direction. is provided in Moreover, this locking recess 37 is formed in a slit shape elongated in the longitudinal direction of the locking portion 30 . Also, both walls of the opening side portion of the locking recess 37 are made to expand toward the opening side. In addition, of the two walls defining the locking recess 37, the portion defining the side wall facing upward in the locked state is arranged outside the portion defining the side wall facing downward in the longitudinal direction of the locking portion 30. It is configured to protrude toward. When the locking portion 30 is slid from the unlocked position to the unlocked position as described above, the front end portion of the part defining the side wall facing upward in the locked state of the locking recess 37 protrudes to form a handle portion. becomes.

In this embodiment, as shown in FIGS. 10 to 12, the locking portion 30 has a thickness direction of the lid body 10 that is on a side different from the projecting side of the knob portion 36 when the knob portion 36 is at the projecting position. It has a configuration in which an insertion guide portion 38 protruding toward the other side is provided. The insertion guide portion 38 is provided so as to be positioned on one side of the shaft insertion hole 32 in the second direction when the locking portion 30 is locked, and to extend toward the one side in the second direction. Further, the distal end portion of the insertion guide portion 38 is tapered toward the distal side when viewed in the second direction in the projected state. In addition, the surface facing inward in the first direction on the base end side (shaft insertion hole 32 side) connected to the distal end portion of the insertion guide portion 38 is an inclined surface that inclines outward in the first direction toward the base end side. It is said that
The latched portion 44 to which the latching portion 30 is latched is inserted into the latching recess 37 to open the lid 2 when the lid 2 is closed and the latching portion 30 is locked. restrain the movement of In addition, when the locking portion 30 is in the locked state, the insertion guide portion 38 is also arranged facing the locked portion 44 and locked.

In the present embodiment, as shown in FIGS. 2(a) and 3, the engaged portions 44 are elongated in the first direction and arranged parallel to each other at intervals in the second direction. It is provided in a crosspiece member 40 arranged so as to be bridged between the joists 9, 9 constituting a pair of ceiling bases. With such a configuration, the locked portion 44 can be provided between the pair of joists 9, 9, compared to a structure in which the locked portion 44 is provided on the joists 9, 9. , sagging of the central portion of the second end portion 4 of the lid 2 can be suppressed. Further, in the present embodiment, the crosspiece member 40 is provided at the first end portion 3A of the ceiling panel 2A arranged so that the first end portion 3A faces the second end portion 4 of the lid body 2. It has a configuration in which a hooked portion 43 on which the hooking portion 16 is hooked is provided (see also FIGS. 1(a) and 6(a)). With such a configuration, the crosspiece member 40 can also function as a holding member that holds the first end portion 3A of the ceiling panel 2A adjacent to the lid body 2 in the first direction. The crosspiece member 40 may constitute the ceiling panel device 1 with the lid 2 and the ceiling panel 2A.

The crosspiece member 40 is elongated in the second direction. The cross member 40 is fixed to the joists 9, 9 while being held by the second end 4 of the lid 2, as shown in FIG. In this embodiment, as shown in FIGS. 1(b) and 6(a), the crosspiece member 40 is provided with a magnet 48 for attracting the reinforcing portion 20 of the lid 2. As shown in FIGS. With such a configuration, the crosspiece member 40 can be firmly held by the second end portion 4 of the lid body 2 by means of the magnets 48 . Moreover, when the lid 2 is closed, the second end 4 of the lid 2 can be temporarily held by the crosspiece member 40 arranged to bridge between the joists 9 and 9 .
As shown in FIGS. 1(b) and 9, the locked portion 44 is placed on the base plate portion 21 of the reinforcing portion 20 of the lid 2 while the cross member 40 is held by the lid 2. It is composed of plate-shaped portions arranged so as to be stacked. The locked portion 44 has a plate-like shape whose thickness direction is parallel to the thickness direction of the lid body 2 . It is arranged so as to extend outward in one direction. Also, the locked portion 44 is provided over the entire length of the crosspiece member 40 . 2(b) and 12, the locked portion 44 has a rear surface of the first end portion 3A of the ceiling panel 2A adjacent to the lid body 2 in the first direction. They are arranged to face each other closely or abut against each other. The engaged portion 44 is configured to partition the bottom side of the gap formed between the panel main body 10A and the lid main body 10 that are adjacent in the first direction.

As shown in FIGS. 5(a) and 7, the bar member 40 includes a rising piece rising upward from the end of the locked portion 44 on the side of the first direction cover, and the rising piece. An extending piece portion 46 extending from the upper end portion of the upper piece portion toward the first direction lid body side is provided over the entire length of the bar member 40 .
In this embodiment, a magnet 48 is provided below the extension piece 46 . A hanging piece hanging downward is provided at the end of the extending piece 46 on the side of the first direction cover body. An opening is provided to constitute the receiving recess 47 (see FIGS. 8(a) and 9(a)). In addition, the opening of the hanging piece is made smaller than the opening of the rising piece, and a stopper 44c for preventing the magnet 48 from coming off is cut and raised from the locked portion 44 on the first direction opposite the lid side of the opening of the rising piece. shows an example provided in The magnets 48 may be configured to temporarily hold the second end portion 4 of the lid 2, or may be provided at a plurality of locations spaced apart in the longitudinal direction of the crosspiece member 40. good. Also, the magnet 48 may be a neodymium magnet as described above. Further, the mode for holding the magnet 48 is not limited to the mode described above, and various other modifications are possible. Further, in the illustrated example, an example is shown in which a plurality of elongated holes with long diameters extending in the second direction are provided in the extending piece portion 46 at intervals in the second direction.

Further, the cross member 40 is provided with a positioning piece portion 44b that abuts against the end face (the end face cover piece portion 23 in this embodiment) of the second end portion 4 of the lid body 2 (see FIG. 12). ). With such a configuration, it is possible to easily align the lid body 2 and the crosspiece member 40 along the first direction. The positioning piece portion 44b is provided so as to protrude downward from the lower surface of the locked portion 44, and has a plate shape with a thickness direction along the first direction. The positioning pieces 44b may be provided at a plurality of locations in the longitudinal direction of the cross member 40 at intervals. Further, the positioning piece portion 44b may be provided in a cut-and-raised shape from the locked portion 44. As shown in FIG.

5(a), 6(a) and 7, the base portion 25 and the locking portion 30 in the released state are inserted into the crosspiece member 40 so as to receive them. An opening 45 is provided so as to pass through the locked portion 44 in the thickness direction. The receiving opening 45 is provided at a substantially central portion in the longitudinal direction of the bar-like member 40, and is provided at the first direction lid side portion of the engaged portion 44, the first direction opposite lid side portion of the rising piece portion and the extending piece portion 46. It is formed so as to penetrate over the portion.
As shown in FIGS. 11 and 12, the receiving opening 45 is capable of receiving the insertion guide portion 38 projecting from the rear surface side (ceiling base side) of the lid body 10 (FIG. 8(c)). )).
Further, the dimension of the receiving opening 45 in the second direction is smaller than the dimension in the second direction of the locking portion 30 in the locked state. The insertion guide portion 38 of the locking portion 30 in the locked state is arranged to face and locked to a portion defining one side of the receiving opening 45 in the second direction. Further, when the knob portion 36 is displaced to the non-protruding side and the locking portion 30 is set to the locking position while receiving the insertion guide portion 38 in the protruding state, the reception opening 45 is positioned on the other side in the second direction. is inserted into the locking recess 37 of the locking portion 30 and locked.

In this embodiment, as shown in FIGS. 11 and 12, a portion defining the receiving opening 45 on the side opposite to the lid in the first direction is provided below the locked portion 44 on one side in the thickness direction. It has the structure which provided the protrusion part 44a which protrudes towards. The protruding piece 44a prevents the end surface of the first end 3A of the ceiling panel 2A adjacent to the lid 2 in the first direction from contacting the jig 49 for operating the operation part 34 or the tip of the insertion guide part 38. , so as to cover this end face. With such a configuration, the end surface of the first end portion 3A of the ceiling panel 2A adjacent to the lid body 2 in the first direction can be protected. The protruding piece 44a is formed by bending a plate-like engaged portion 44 in a series. The projecting dimension of the projecting piece 44a is substantially the same as the thickness dimension of the panel body 10A. In the figure, the projecting piece 44a is slightly below the front surface of the panel body 10A when the rear surface of the panel body 10A is in contact with the lower surface of the locked portion 44. Although an example of projecting dimensions is shown, it is not limited to such an aspect. Moreover, the dimension of the projecting piece 44a in the second direction may be set appropriately according to the operation range of the jig 49 for operating the operation portion 34 in the second direction.

Further, in the present embodiment, as shown in FIGS. 5A, 11 and 12 , the second side in the thickness direction of the locked portion 44 is provided at a portion defining the first direction lid side of the receiving opening 45 . It has the structure which provided the protrusion part 46a which protrudes toward the upper direction which becomes. The protruding piece 46a is provided at a position corresponding to the protruding insertion guide portion 38 in the second direction. With such a configuration, the distal end portion of the insertion guide portion 38 and the proximal end portion side of the distal end portion are shaped as described above. It is possible to suppress the tip portion of the insertion guide portion 38 from being caught in the site and deformation due to the hooking. The protruding piece 46a is formed by bending a plate-like extending piece 46 in series.

In addition, while being held by the lid body 2, the crosspiece member 40 protrudes outward in the first direction (opposite to the lid body side) from the back surface side of the second end portion 4 of the lid body 10, A fixed piece portion 41 is provided on which the ceiling panel 2A that is fixed and adjacent in the first direction is arranged on the lower side. With such a configuration, the fixture is directed from the indoor side (lower side) toward the joist 9 via the fixing piece portion 41 projecting from the second end portion 4 toward the outside in the first direction (opposite side of the lid). can be fixed to the joist 9 so that the crosspiece member 40 held by the lid body 2 can be fixed. Further, in a state where the ceiling panel 2A adjacent in the first direction is installed, the fixture can be made inconspicuous from the surface side by the ceiling panel 2A.

This fixed piece 41 is arranged on the lower side of the fixed piece 41 and is adjacent to the ceiling panel 2A (panel main body 10A) in the first direction. It is provided so that a gap larger than the dimension along the axial direction of the head of the fixture to be fixed is formed. Further, the fixed piece portion 41 is provided over the entire length of the crosspiece member 40 . The fixing piece 41 is connected to the plate-shaped locked portion 44 via the rising piece provided so as to rise upward from the end of the locked portion 44 opposite the lid in the first direction. are provided in the form of
In addition, as shown in FIGS. 1(a) and 7, fasteners for fixing the crosspiece member 40 to the joists 9, 9 on both sides are provided at both ends in the longitudinal direction (second direction) of the fixed piece portion 41. are provided with insertion holes 41a, 41a through which are inserted. Further, these insertion holes 41a, 41a are elongated holes having long diameters in the second direction. Further, in the example of the drawing, an example is shown in which a plurality of long holes having a long diameter in the second direction are provided in the fixed piece portion 41 at intervals in the second direction.

The hooked portion 43 is substantially similar to the hooked portion 23A of the ceiling panel 2A described above, and the first end portion 3A of the ceiling panel 2A adjacent to the lid body 2 in the first direction is positioned above the second end portion 4A. It is configured such that it can be held by hooking the hook-shaped portion 17 of the ceiling panel 2A in the state of being positioned at the position of the ceiling panel 2A.
The hooked portion 43 is constituted by a portion of a rising piece provided to rise from the end of the hooked portion 44 on the side opposite to the lid in the first direction. Further, an insertion hole 42 through which the hook-shaped portion 17 of the hook portion 16 is inserted is provided at the upper end portion of the rising piece portion and the portion of the fixed piece portion 41 on the side of the rising piece portion. The dimensions of the insertion hole 42 and the hooked portion 43 along the second direction are larger than the dimensions of the hooking portion 16 along the second direction, as shown in FIG. 6(a). In addition, the insertion hole 42 and the hooked portion 43 are spaced apart in the longitudinal direction of the crosspiece member 40 (the second direction along the second end portion 4 of the lid body 10 ) so as to be positioned according to the hooked portion 16 . are provided at a plurality of locations (four locations in the example shown) (see FIG. 1(a)). Note that the bar-shaped member 40 may be formed in series from a suitable metallic material by pressing, bending, or the like. Further, the crosspiece member 40 forming the locked portion 44 to which the locking portion 30 is locked is not limited to the structure described above, and various other modifications are possible. Further, the engaged portion 44 is not limited to being provided on the crosspiece member 40 as described above, and may be provided on the ceiling base or the adjacent ceiling panel 2A side.

When installing the lid body 2 configured as described above, the crosspiece member 40 is held by the second end portion 4, and the locking portion 30 is set to the locking position. 2, the hooking portion 16 of the first end portion 3 is hooked to and held by the hooked portion 23A on the side of the first edge portion 7 defining the opening 6. As shown in FIG. Then, as shown in FIG. 4( a ), the lid body 2 is rotated around the first end part 3 side so that the second end part 4 side of the lid body 2 is lifted and the held end part 5 is rotated. , 5 are attracted to the joists 9, 9 and temporarily held. Further, the fixed piece portion 41 of the bar-shaped member 40 is fixed to the joists 9, 9 by a fastener. As a result, the lid 2 is installed with the opening 6 closed. When opening the lid body 2 installed in this way, as shown in FIGS. 8 to 10, the engaging portion 30 is slid to the release side to project the knob portion 36, and the knob portion 36 is gripped. to open it. When closing the opened lid 2, as shown in FIGS. 11 and 12, the knob 36 at the projecting position is gripped and the lid 2 is rotated with the first end 3 side as a fulcrum. The second end portion 4 side of the lid body 2 is lifted so as to move upward. As a result, the magnets 15, 15 of the held end portions 5, 5 are attracted to the joists 9, 9, and the reinforcing portion 20 is attracted to the magnets 48 of the bar member 40 and temporarily held. In this temporarily held state, if the knob portion 36 is displaced to the non-protruding side and the locking portion 30 is slid to the locking side to reach the locking position, the locking portion 30 will move to the locked portion 44 . locked against.

In the above-described embodiment, the cover 2 is an inspection door panel that opens and closes the opening 6 that constitutes the inspection door provided in the ceiling. Openings provided in various casings, containers, etc. may be opened and closed. In this case, the latched portion 44 to be latched by the lid body 10 or the latching portion 30 may be appropriately deformed as necessary.
Further, in the above-described embodiment, an example in which the locking portion 30 is provided on the reinforcing portion 20 provided along the second end portion 4 of the lid body 10 is shown, but the present invention is not limited to such an aspect.
In addition, in the above-described embodiment, an example in which the lid body 10 includes the foamed resin-based or fiber-based base material 11 is shown, but the present invention is not limited to such an aspect. The configuration of each part of the lid body 2 according to the above-described embodiment is not limited to the aspect described above, and various other modifications are possible.

2 lid 3 first end (first end in first direction)
4 second end (first direction second end)
REFERENCE SIGNS LIST 10 Lid body 11 Base material 20 Reinforcement part 25 Base part 27 Support shaft (axis along the first direction)
29 guide part (braking part)
30 Locking portion 31a Contacted portion 34 Operating portion 35 Receiving recess 35b Receiving groove 36 Knob 44 Receiving portion 6 Opening 7 First edge 8 Second edge 49 Jig

Claims (6)

It is shaped like a rectangular flat plate, and the first end in the first direction is rotatably held on the first edge side of the four peripheral edges defining the opening, and the second end in the first direction faces the first edge. A locking portion that is locked to the locked portion provided on the side of the second edge is provided,
The locking portion is an operation portion that is operated when releasing the locking state of the locked portion with a jig inserted into a gap between the first direction second end portion and the second edge portion. a knob that is in a non-protruding position that does not protrude from the gap in the locked state and that is in a protruding position that protrudes from the gap toward the surface side in the released state; The lid , wherein the locking portion including the portion is provided substantially at the center in a second direction orthogonal to the first direction and the thickness direction of the lid. In claim 1,
The locking portion is held slidably along the second direction and rotatable about an axis along the first direction with respect to a base portion fixed to the second end in the first direction, The grip portion is set to the projecting position as the engaging portion rotates about the axis,
The base portion prevents rotation about the axis when the locking portion is slid in the second direction between a locking position and a position before releasing, while the locking portion is in the releasing position. A lid body, characterized in that it is configured to allow rotation of the part about the axis. In claim 2,
The base portion is provided on a side that is brought into contact with a contacted portion provided on the locking portion when the locking portion is slid from the unlocking front position to the unlocking position, and projects the knob portion. A lid, characterized in that it is provided with a guide part for rotation. In claim 2 or 3,
When the knob portion is displaced from the protruding position to the non-protruding position, the base portion abuts against the abutted portion provided on the locking portion, and at a position before the non-protruding position, the A lid body, comprising a braking portion for braking rotation of the locking portion toward the non-protruding position. In any one of claims 2 to 4,
The operating portion is provided with a receiving recess that is open on a surface side, which is one side in the thickness direction of the lid when the locking portion is in the locking position, and penetrates in the first direction. Both side wall portions defining the two sides in the second direction are provided with receiving grooves that extend in the thickness direction of the lid when the locking portion is in the locking position and open in directions facing each other. Featured lid. In any one of claims 1 to 5,
a rectangular plate-shaped lid body including a base material of foamed resin or fiber ; and a reinforcing portion having a stop portion.

Images