JP7223220B1 - Inspection opening structure - Google Patents

Abstract

An object of the present invention is to provide an inspection port structure capable of suppressing vibration of a putty layer with a strong fixing structure. [Solution] The inspection port structure includes a ceiling board fixed to a ceiling base material of a building, or an inner wall of a building, and an inspection port formed in the ceiling board, which is surrounded on the back side of the ceiling board. a fixed frame fixed to a ceiling plate or fixed to the inner wall in a state surrounding an inspection hole formed in the inner wall on the back side of the inner wall; and an outer fixed frame fixed to the inner surface of the fixed frame. The apparatus includes a frame, and a lid that is rotatably attached within the frame of the outer frame and opens and closes the inspection port. [Selection diagram] Figure 1

Description

The present invention relates to a ceiling inspection opening structure for inspecting a space behind the ceiling of a building, or an inspection opening structure for an inner wall for inspecting a space behind the inner wall of a building.

For example, in the ceiling structure of a building, it is known to form an inspection opening for inspecting the space above the ceiling in a ceiling panel that separates an indoor space from a space above the ceiling. An inspection opening structure constructed corresponding to a peripheral portion of the inspection opening includes a lid member that closes the inspection opening and a frame member that supports the lid member. The frame member is provided along the opening edge of the inspection door (see, for example, Patent Document 1).

In the inspection opening structure described above, a gap may occur between the opening edge of the inspection opening and the frame member. If such a gap occurs, the appearance of the inspection door structure when viewed from the interior space side is degraded. Therefore, construction is performed to form a putty layer by applying the putty agent over a predetermined range around the inspection opening while filling the gap with the putty agent. As a result, it is possible to improve the appearance of the inspection opening structure.

JP-A-2002-349054

In such an inspection opening, for example, when inspecting the ceiling space, vibration may be generated by opening and closing the lid. In order to keep the putty layer in a clean state so as not to cause cracks or the like due to the vibration, it is preferable that the inspection opening has a structure that suppresses the vibration applied to the putty layer or suppresses the generation of the vibration itself. The same applies to the case where an inspection opening structure is provided on the inner wall of the building.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an inspection opening structure capable of suppressing the vibration of the putty layer or suppressing the occurrence of the vibration itself by means of a strong fixing structure.

An inspection door structure according to one aspect of the present invention surrounds a ceiling plate fixed to a ceiling base material of a building , or an inner wall of a building and an inspection door formed in the ceiling plate on the back side of the ceiling plate. a fixed frame that is fixed to the ceiling plate in a state where the frame is open, or fixed to the inner wall in a state that surrounds an inspection opening formed in the inner wall on the back side of the inner wall ; a fixed outer frame; and a lid body that is rotatably attached within the frame of the outer frame and opens and closes the inspection opening. A plurality of slit holes for temporary fixing to a fixed frame are provided, and a plurality of screw holes for permanent fixing to the fixed frame provided along the vertical direction are provided at a plurality of locations, and the outer frame is provided with: It is formed in the shape of a rectangular frame, and L-shaped plates in plan view are provided inside the four corners. are arranged so as to abut on the upper surface of the lid.

According to this inspection opening structure, the fixed frame is firmly fixed to the ceiling plate, so that the fixed frame is firmly fixed. As a result, when a putty agent is applied over a predetermined range around the inspection opening to form a putty layer, for example, even if vibration is generated by opening and closing the lid, the putty layer is It is possible to suppress the vibration applied to or suppress the occurrence of vibration itself. As a result, the putty layer can be maintained in a clean state without the risk of cracks or the like occurring in the putty layer.

1 is a cross-sectional view of an inspection door structure 1; FIG. 2 is a cross-sectional view taken along line II-II shown in FIG. 1; FIG. FIG. 2 is a plan view of a fixed frame 10 shown in FIG. 1; 4 is a sectional view taken along line IV-IV shown in FIG. 3; FIG. 2 is a plan view of an outer frame 20 shown in FIG. 1; FIG. 6 is a cross-sectional view taken along the line VI-VI shown in FIG. 5; FIG. FIG. 2 is a plan view of a lid body 30 shown in FIG. 1; FIG. 3 is a partially enlarged view of FIG. 2; FIG. 5 is a plan view showing a modification of the outer frame according to the present invention; FIG. 10 is a cross-sectional view taken along the line XX shown in FIG. 9;

BEST MODE FOR CARRYING OUT THE INVENTION An inspection opening structure 1 according to the present invention will be described below with reference to the drawings.

As shown in FIG. 1 , the inspection door structure 1 of this embodiment includes a ceiling plate P, a fixed frame 10 , an outer frame 20 , a lid 30 , and the lid 30 is rotated with respect to the outer frame 20 . It mainly has a rotating member 40 that is movably connected. 1, 2 and 8, hatching is used to show the cross-sectional shape of the lid 30. As shown in FIG.

As shown in FIG. 2, in the ceiling space S2, a plurality of ceiling joist receivers 71 suspended from a plurality of hanging metal fittings (not shown) are arranged in a direction orthogonal to the ceiling joist receivers 71, and clips 73 A ceiling base material 70 consisting of a plurality of joists 72 attached to joist receivers 71 via is stretched.

As shown in FIG. 1, the ceiling plate P is a plate material that partitions the indoor space S1 and the ceiling space S2, and is fixed to the joists 72. As shown in FIG. The inspection opening O is an opening for inspecting the ceiling space S2. Although the shape of the inspection opening O is not particularly limited, it is rectangular, for example.

The fixed frame 10 serves as a frame that protects the periphery of the inspection opening O, as shown in FIG. The fixed frame 10 is arranged on the side of the ceiling space S2 with respect to the ceiling plate P and fixed to the ceiling plate P. As shown in FIG.

The fixed frame 10 is arranged along the opening edge of the inspection door O on the surface of the ceiling plate P on the ceiling space S2 side, as shown in FIG. As shown in FIG. 3, the fixed frame 10 has four elongated frame pieces 10A to 10D arranged corresponding to the four sides of a rectangular inspection opening O, respectively. As shown in FIG. 3, each frame piece 10A to 10D is provided with two screw insertion holes H1 for fixing to the ceiling plate P along the longitudinal direction.

As shown in FIG. 4, each of the frame pieces 10A and 10C has a substantially C-shaped cross section with an upward opening. The cross-sectional shapes of the frame pieces 10B and 10D are also the same as the cross-sectional shapes of the frame pieces 10A and 10C. As shown in FIG. 8, the frame body piece 10A of the fixed frame 10 includes a bottom plate portion 121 that forms the bottom surface of the fixed frame 10, a pair of side plate portions 122 and 123 that form the left and right side surfaces of the fixed frame 10, and a fixed portion. and a top plate portion 124 forming the upper surface of the frame 10 . The bottom plate portion 121 is fixed to the upper surface of the ceiling plate P positioned below it using screws N1. The side plate portion 122 is fixed to the side surface of the joist 72 located on the left side thereof using screws N2. The side plate portion 123 is fixed to the side surface of the frame portion 20A of the outer frame 20 located on the right side thereof using screws N3. The top plate portion 124 is fixed to the lower surface of the ceiling joist support 71 located above it using screws N4. Each of the frame pieces 10B to 10D is configured in the same manner as the frame piece 10A, and is fixed to each of the joist receivers 71 and 72 in the same manner.

The outer frame 20 is a frame-shaped member that supports the lid 30 so that the lid 30 can close the inspection opening O. As shown in FIG. As shown in FIG. 5, the outer frame 20 is formed in a rectangular frame shape having a rectangular opening in the center corresponding to the shape of the inspection opening O. As shown in FIG. The outer frame 20 is fixed to the inner surface of the fixed frame 10, as shown in FIGS. Specifically, as shown in FIG. 8, the outer frame 20 is fixed to the inner surface of the side plate portion 123 of the fixed frame 10 using screws N3.

As shown in FIGS. 5 and 6, each frame portion 20A to 20D of the outer frame 20 is provided with two slit holes H2 for temporary fixing to the fixed frame 10 so as to extend vertically. there is In this embodiment, as shown in FIG. 4, through holes H3 for screwing are drilled at predetermined locations of the fixed frame 10, and temporary screws (not shown) pass through the slits H2. It is adapted to be screwed into the through hole H3. By providing such a slit hole H2, when fixing the outer frame 20 to the fixed frame 10, temporary fixing is first performed, and the fixed position (height) and inclination of the outer frame 20 are properly fixed. It is possible to judge whether or not

As shown in FIGS. 5 and 6, each frame portion 20A to 20D of the outer frame 20 is provided with three vertical screw holes H4 for permanent fixing to the fixed frame 10. As shown in FIG. As shown in FIG. 5, three screw holes H4 are provided in each of the frame portions 20A to 20D. By providing such a screw hole H4, the outer frame 20 is temporarily fixed to the fixed frame 10, and after the position of the outer frame 20 is adjusted, the outer frame 20 is permanently fixed. can be fixed at the desired position. That is, in the permanently fixed state, the outer frame 20 is securely fixed to the fixed frame 10, and there is no fear of displacement. Further, by screwing a screw into any one of the screw holes H4 arranged at three upper and lower positions, the position in the vertical direction can be selected in three stages. As for the screw to be screwed into the screw hole H4, a fastener such as a conventional drill screw is preferably used.

The lid body 30 is for opening and closing the inspection opening O, and is attached to the frame of the outer frame 20 so as to be openable and closable. The cover 30 is made of a plate-like member formed in a size slightly smaller than the inspection opening O. As shown in FIG. As shown in FIG. 7, one side of the lid 30 is provided with two mounting holes 31 for mounting mounting brackets 42, which will be described later.

The rotating member 40 attaches the lid body 30 to the outer frame 20 so as to be rotatable about one end thereof. The inspection opening O is opened and closed by rotating the cover 30 . As shown in FIGS. 1 and 2, two rotating members 40 are provided on one side of the outer frame 20, and the rotating members 40 are arranged apart from each other. In this embodiment, as shown in FIG. 1, the rotating member 40 uses a hinge generally called a slide hinge, in which the hinge is provided with a damper. ) and a damper (not shown).

The hinge main body 41 is a member attached to the outer frame 20 side, as shown in FIG. In this embodiment, the hinge main body 41 is provided with a through-hole for screwing at a predetermined location, and the metal hinge main body 41 is attached to the inner surface of the outer frame 20 with a screw or the like (not shown). It is designed to be fixed by

The mounting bracket 42 is a member mounted on the lid body 30 side, as shown in FIG. In this embodiment, a mounting bracket 42 made of a plate-like member made of metal is fixed to the lid 30 via a mounting bracket (not shown). The mounting bracket 42 is rotatably connected to the hinge body 41 via a link (not shown).

A link (not shown) is a member that is rotatably attached to the hinge body 41 and the mounting bracket 42, and serves as link means that connects the mounting bracket 42 to the hinge body 41 so that it can be folded and deployed at a predetermined angle. Function.

A damper (not shown) is damping/attenuating means for damping/attenuating the rotation of the link so that when the mounting bracket 42 attached to the lid body 30 is moved in the folding direction, the movement of the mounting bracket 42 becomes gentle. is.

By providing the damper in this way, the damper's damping and damping force regulates the hinge so that it does not open or close rapidly. Due to the cushioning properties of the damper, gentle opening and closing operations are performed.

FIG. 1 shows the trajectory of the open/closed state of the lid body 30 attached to the outer frame 20 via the rotating member 40 according to this embodiment. (A) shows a state in which the lid body 30 is closed with respect to the outer frame 20, (B) shows a state in which the lid body 30 is opened about 20 degrees, and (C) shows a state in which the lid body 30 is opened. It shows a state of being deployed to the maximum deployment angle (approximately 110 degrees).

First, in the state (A) in which the cover 30 is closed with respect to the outer frame 20, the link (not shown) is folded toward the hinge main body 41, and the cover 30 is stored inside the outer frame 20 together with the mounting bracket 42. It is In this state (A), the lower surface of the lid body 30 is arranged flush with the lower surface of the ceiling plate P or slightly above it. In particular, when the lower surface of the lid body 30 is arranged slightly above the ceiling plate P, the appearance is beautiful and the appearance can be enhanced.

When the lid 30 is opened from state (A), the mounting bracket 42 fixed to the lid 30 via a link (not shown) rotates as shown in state (B). As the lid body 30 is further deployed, the link (not shown) rotates further, and is regulated and held so as not to rotate further at the maximum deployment angle position. Accordingly, the lid 30 is regulated so as not to expand beyond a predetermined angle (approximately 110 degrees in this embodiment) and held at that position.

When closing the unfolded lid body 30, the state (A) is reached via the state (C) through the state (B) in reverse to the above.

Moreover, the inspection door structure 1 of the present embodiment further includes locking means 50 for locking the lid 30 in the state (A) in which the lid 30 is closed with respect to the outer frame 20 . In this embodiment, a push latch structure is adopted as the locking means 50 . According to this structure, when the lid 30 is pushed in the closing direction, the lid 30 is locked in the closed position, and when the lid 30 is pushed again in the closing direction, the locked state of the lid 30 is released. As shown in FIG. 1, the locking means 50 mainly includes a latch case 51 attached to the outer frame 20 side and a protrusion 52 attached to the lid body 30 side. The latch case 51 accommodates a latch (not shown). The latch is provided with a pressed portion (not shown) that is pressed by the protrusion 52 and a pair of movable portions (not shown) capable of holding the tip of the protrusion 52 .

In the locking means 50, when the user pushes the lid 30 from the outside and the projection 52 presses the pushed portion (not shown), the latch (not shown) retreats into the latch case 51 and the pair of movable portions ( (not shown) sandwich the tip of the projection 52 . As a result, the lid body 30 is locked in the closed position (state (A) shown in FIG. 1) by the locking means 50 against the urging force acting in the opening direction, and the inspection opening O is blocked by the lid body 30. escape.

Further, when the lid 30 is pushed again in the closing direction from this state (A), the pair of movable parts (not shown) release the tips of the protrusions 52 and the locked state of the lid 30 is released. As a result, the lid body 30 rotates in the opening direction according to the urging force, and the inspection opening O is opened.

As described above, the fixed frame 10 is fixed not only to the ceiling plate P, but also to the ceiling base material 70 consisting of the ceiling joists 71 and 72, so that the fixed frame 10 can be firmly fixed. .

As shown in FIG. 8, in this embodiment, the ceiling plate P is adjusted and fixed such that the position of the lower end 22 of the outer frame 20 is substantially flush with the lower surface of the ceiling plate P. The lower end 22 of the outer frame 20 (on the side of the lid 30) is filled with the putty layer P1 near the corners of the lower surface around the inspection opening O (the gently inclined surface and the missing portion (missing portion)). It has a flattening treatment that makes it almost flush or flush with the edge), giving it a beautiful appearance. According to this flattening process, the screw head of the screw N1 is hidden, and by integrating (combining) the ceiling and the inspection door structure 1, a highly designed appearance quality is realized. Further, as described above, since the fixed frame 10 is firmly fixed, the putty layer P1 is not cracked by vibration, and the putty layer P1 can be maintained in a clean state. In this flattening process, the lower end 22 of the outer frame 20 may or may not be filled (covered) with the putty layer P1.

Further, in this embodiment, as shown in FIG. A protrusion 21 is provided for receiving the putty layer P1). As a result, the putty layer P1 is entangled with the protrusions 21, and the putty layer P1 is less likely to be displaced. Therefore, the putty layer P1 is less likely to crack, and the putty layer P1 can be maintained in a clean state.

As described above, according to the inspection opening structure 1 of the present embodiment, the vibration of the putty layer P1 can be suppressed by a strong fixing structure.

Further, in this embodiment, since the fixed frame 10 is fixed on the back side of the ceiling plate P, the fixed frame 10 can be hidden in the ceiling space S2. As a result, the appearance can be improved and the appearance can be enhanced.

Although the embodiments of the present invention have been described above, the specific examples are merely illustrated, and the present invention is not particularly limited. Further, the actions and effects described in the embodiments of the invention are merely enumerations of the most suitable actions and effects resulting from the present invention, and the actions and effects of the present invention are described in the embodiments of the invention. are not limited to those listed.

In the above embodiment, the fixed frame is configured to be fixed to both the ceiling plate and the ceiling base material, but the fixed frame does not necessarily have to be fixed to the ceiling base material. , the fixed frame may be configured to be fixed only to the ceiling panel.

Further, in the above embodiment, the case where the bottom surface of the fixed frame is fixed to the ceiling board and the upper surface and side surfaces of the fixed frame are fixed to the ceiling base material has been described, but the present invention is limited to this. not to be For example, the fixed frame may be configured such that the bottom surface is fixed to the ceiling board and at least a portion of the fixed frame is fixed to the ceiling base material.

Further, in the above embodiment, the outer frame may be configured to have plates inside the four corners of the frame. For example, the following modifications of the outer frame are conceivable. In addition, in the following modifications, since the code|symbol with the same last two digits as the said embodiment is the same thing, description may be abbreviate|omitted. Also, parts that are not particularly described are the same as those in the above-described embodiment, so description and illustration may be omitted.

As shown in FIG. 9, the outer frame 220 according to this modified example is formed in a rectangular frame shape having a rectangular opening in the center corresponding to the shape of the inspection opening O. As shown in FIG. Further, inside the four corners of the outer frame 220, L-shaped plates 280 (280A to 280D) are provided in plan view. This plate 280 is a reinforcing member for preventing deformation of the outer frame 220 and also functions as a positioning member for the lid 230 with respect to the outer frame 220 .

Specifically, as shown in FIGS. 9 and 10, the plate 280A is such that the lower end 280a of the plate 280A is positioned at a predetermined distance from the lower ends of the frame portions 220A and 220B inside the corner portions of the adjacent frame portions 220A and 220B. It is attached and fixed at a remote position with a screw or the like (not shown). In addition, the plate 280B is provided inside the corners of the adjacent frame portions 220B and 220C so that the lower end 280b of the plate 280B is located at a predetermined distance from the lower ends of the frame portions 220B and 220C, similarly to the plate 280A. ing. Further, the plate 280C is provided inside the corners of the adjacent frame portions 220C and 220D so that the lower end 280c of the plate 280C is located at a predetermined distance from the lower ends of the frame portions 220C and 220D, similarly to the plate 280A. ing. Further, the plate 280D is provided inside the corners of the adjacent frame portions 220D and 220A so that the lower end 280d of the plate 280D is at a predetermined distance from the lower ends of the frame portions 220D and 220A, similarly to the plate 280A. ing.

In addition, the predetermined distances when the plates 280A to 280D are attached to the four corners of the outer frame 220 are the same as the distance from the lower surface to the upper surface of the lid 230, or longer than the distance from the lower surface to the upper surface of the lid 230. The distance is set to be slightly longer, and when the lid 230 is closed with respect to the outer frame 220, the upper surface of the lid 230 contacts the lower ends 280a-280d of the plates 280A-280D.

For example, when the lid 230 is attached to the outer frame 220, if the predetermined distance is set to be the same as the distance from the bottom surface to the top surface of the lid 230, the bottom surface of the lid 230 is positioned between the ceiling plate P and the outer It can be arranged at a position flush with the lower surface of the frame 220 . Further, when the lid 230 is attached to the outer frame 220, if the predetermined distance is set to be slightly longer than the distance from the bottom surface to the top surface of the lid 230, the bottom surface of the lid 230 is attached to the ceiling plate P. and can be arranged slightly above the outer frame 220 .

Therefore, according to this modification, the plates 280 are provided inside the four corners of the outer frame 220, so that the outer frame 220 is firmly held in a rectangular frame shape, and deformation of the outer frame 220 is prevented. can do. Further, the plate 280 is provided so that the upper surface of the lid 230 contacts the lower ends 280a to 280d of the plates 280A to 280D when the lid 230 is closed with respect to the outer frame 220. , the lid 230 can be easily positioned with respect to the outer frame 220 when the lid 230 is attached to the outer frame 220 .

Further, the outer frame and the lid of the above embodiment can be rotated clockwise by 90°, 180°, or 270° while being held horizontally, and attached to the fixed frame, as in the above embodiment. It is possible to achieve the effects of

In addition, in the above embodiment, the case where the inspection opening structure is provided in the ceiling of the building has been described, but it is also applicable to the case where the inspection opening structure for inspecting the space between the inner wall and the outer wall is provided in the inner wall. .

1 Inspection Door Structure 10 Fixed Frames 10A, 10B, 10C, 10D Frame Pieces 20, 220 Outer Frame Frames 20A, 20B, 20C, 20D, 220A, 220B, 220C, 220D Frame 21 Projection 22 Lower Ends 30, 230 Lid 31 Mounting hole 40 Rotating member 41 Hinge main body 42 Mounting bracket 50 Locking means 51 Latch case 52 Projection 70 Ceiling substrate material 71 Ceiling support 72 Ceiling 73 Clip 121 Bottom plate portions 122, 123 Side plate portion 124 Top plate portions 280, 280A, 280B, 280C, 280D Plates 280a, 280b, 280c, 280d Lower end H1 Screw insertion holes H2, H202 Slit holes H3 Through holes H4, H204 Screw holes N1, N2, N3, N4 Screw O Inspection hole P Ceiling plate P1 Putty layer S1 Indoor Space S2 Ceiling space

Claims (5)

A ceiling plate fixed to the ceiling base material of the building, or an inner wall of the building,
It is fixed to the ceiling plate in a state in which the inspection port formed in the ceiling plate is surrounded on the back side of the ceiling plate, or in a state in which the inspection port formed in the inner wall is surrounded on the back side of the inner wall. a fixed frame fixed to the inner wall;
an outer frame fixed to the inner surface of the fixed frame;
a lid body that is rotatably attached within the frame of the outer frame and that opens and closes the inspection opening;
with
The outer frame has a plurality of vertically extending slit holes for temporary fixing to the fixed frame, and a plurality of vertical screw holes for final fixing to the fixed frame. located at multiple locations,
The outer frame is formed in the shape of a rectangular frame, and L-shaped plates are provided inside the four corners in a plan view,
The inspection port structure, wherein the plate is arranged such that a lower end of the plate abuts an upper surface of the lid when the lid is closed with respect to the outer frame. A ceiling plate fixed to the ceiling base material of the building, or an inner wall of the building,
It is fixed to the ceiling plate in a state in which the inspection port formed in the ceiling plate is surrounded on the back side of the ceiling plate, or in a state in which the inspection port formed in the inner wall is surrounded on the back side of the inner wall. a fixed frame fixed to the inner wall;
an outer frame fixed to the inner surface of the fixed frame;
a lid body that is rotatably attached within the frame of the outer frame and that opens and closes the inspection opening;
with
In a state in which the end portion of the outer frame on the lid side is adjusted and fixed so as to be substantially flush with the lower surface of the ceiling plate or the inner surface of the inner wall,
A putty layer is formed by applying a putty agent to the lower surface of the ceiling plate or the inner surface of the inner wall,
The putty layer is formed substantially flush with the lid-side end of the outer frame, or covers the lid-side end of the outer frame,
A missing portion is formed by missing at least a part of a corner portion of the ceiling plate or the inner wall on the outer frame side,
The missing portion is covered with the putty layer,
An inspection opening structure, wherein a projection for receiving the putty layer is formed on a part of the side surface of the outer frame on the ceiling plate side or the inner wall side. A ceiling plate fixed to the ceiling base material of the building, or an inner wall of the building,
It is fixed to the ceiling plate in a state in which the inspection port formed in the ceiling plate is surrounded on the back side of the ceiling plate, or in a state in which the inspection port formed in the inner wall is surrounded on the back side of the inner wall. a fixed frame fixed to the inner wall;
an outer frame fixed to the inner surface of the fixed frame and formed in a rectangular frame shape having four sides of a plate-like member;
a lid body that is rotatably attached within the frame of the outer frame and that opens and closes the inspection opening;
with
The outer frame has a plurality of vertically extending slit holes for temporary fixing to the fixed frame, and a plurality of vertical screw holes for final fixing to the fixed frame. located at multiple locations,
The temporary fixing slit hole and the permanent fixing screw hole are used so that the end portion of the outer frame on the lid side is substantially flush with the lower surface of the ceiling plate or the inner surface of the inner wall. adjusted and fixed by
A putty layer is formed by applying a putty agent to the lower surface of the ceiling plate or the inner surface of the inner wall,
The putty layer is formed substantially flush with the lid-side end of the outer frame, or covers the lid-side end of the outer frame. mouth structure. The inspection door structure according to any one of claims 1 to 3, wherein at least a part of said fixed frame is fixed to said ceiling base material or said inner wall. 4. The apparatus according to any one of claims 1 to 3, further comprising a push latch structure provided between the outer frame and the lid, and capable of locking/releasing the lid with respect to the outer frame. The inspection door structure according to any one of claims 1 to 3 .

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