JP2015081466A - Inspection port and method for installing the same on wall or ceiling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inspection port and an inspection port installation method, which do not require time and effort to install the inspection port and can improve appearance of an inspection port section by pasting a surface finish sheet on a surface of a frame body exposed to an indoor side.SOLUTION: An inspection port 10 comprises a frame body 200 to be installed to an opening on a wall or a ceiling in a room. The frame body 200 has an outer body which is fixed to the opening and an inner body 24 which is attached to the outer body in a manner that can be freely opened and closed. Surface treatment for pasting a wall or ceiling surface finish sheet is applied to a surface of the frame body 200 to be exposed to an indoor side when the frame body 200 is installed to the opening. Thus, the inspection port 10 enables the surface finish sheet to be pasted on the surface of the frame body 200 even when the frame body 200 is made of a material hard to make the surface finish sheet adhere to the frame body 200 with glue of the surface finish sheet.

Description

  The present invention relates to an inspection port attached to a wall or a ceiling of a building or a ship, and a method for installing the inspection port on a wall or a ceiling.

  In general, inspection ports are provided on the walls and ceilings of buildings such as houses and ships. As such an inspection port, an outer frame body fixed to an opening formed on a wall or a ceiling, and an inner frame body which is attached to the outer frame body so as to be opened and closed and into which a lid member is fitted. What is provided with the frame part which has is known. As an inspection port of the type consisting of the outer frame body and the inner frame body, it is roughly classified that the inner frame body covers the outer frame body and only the inner frame body appears in the room, so-called single frame type (for example, patent document) 1) and a so-called double frame type (for example, Patent Document 2) in which an inner frame body and an outer frame body are doubled and appear indoors. Whether it is a single frame type inspection port or a double frame type inspection port, a surface finish sheet such as a vinyl cloth, a paper cloth, a woven cloth, etc. is not attached to the surface exposed to the indoor side of the frame part. Used in an exposed state.

  Further, as a type of inspection port different from the type of inspection port composed of the outer frame body and the inner frame body, as shown in Patent Document 3, it was fitted so as to edge a wall hole formed in the wall. What is provided with the resin-made frame and the cover body engage | inserted by this frame is known. In the inspection port shown in Patent Document 3, the frame body has a peripheral wall portion that rises along the inner peripheral surface of the wall hole, a lid receiving flange portion that protrudes inward from the rear side edge of the peripheral wall portion, and a front side of the peripheral wall portion. It is formed in a cross-sectional crank shape by comprising a seating flange portion projecting outward from the edge at a right angle. The front surface of the frame is covered with a vinyl cloth so that it is inconspicuous from the surroundings. Here, in order to prevent the vinyl cloth from being peeled off from the frame body, the lid receiving flange portion is covered with the vinyl cloth, and in this state, the lid material is fitted so as to contact the lid receiving flange portion, and the lid material flange portion and the lid A vinyl cloth is sandwiched between the materials. The lid member is also covered with the same vinyl cloth as the vinyl cloth on the wall material side.

JP 2007-126942 A

JP 2012-127124 A

JP 2009-57711 A

  In the inspection port of the type consisting of an outer frame body and an inner frame body as in Patent Documents 1 and 2, as described above, the surface exposed to the indoor side of the frame body portion is a surface finish sheet for walls and ceilings. Since the frame body portion is used without being attached, the frame body portion has an appearance that does not have a sense of unity with the ceiling or the wall. The reason for this is that even if the surface of the frame is covered with a surface finish sheet such as a ceiling or a wall, it will peel off. The surface finish sheet is attached to the wall or ceiling using starch paste that is less harmful to the human body, so even if it is attached to a frame made of metal, resin, etc. The surface finish sheet peels off without obtaining an adhesion.

  Moreover, in the inspection port of the said patent document 3, since a frame and a cover body are covered with a vinyl cloth, there exists a sense of unity with an inspection port (frame body) and a wall material. However, as described above, the cover member is fitted in the state of the frame body covered with the vinyl cloth up to the cover receiving flange portion, and the frame body is covered by sandwiching the vinyl cloth between the cover material flange portion and the cover material. The vinyl cloth is prevented from peeling off. For this reason, the frame and the lid cannot be integrally covered with the vinyl cloth, and the process of covering the frame with the vinyl cloth and the process of covering the lid with the vinyl cloth must be performed separately. Therefore, the work of attaching a vinyl cloth to the inspection port is troublesome, and it takes time to install the inspection port.

  The present invention is for solving the above-mentioned problems, and does not take time to install the inspection port, and attaches a surface finish sheet to the surface exposed to the indoor side in the frame portion, An object is to provide an inspection port capable of improving the aesthetics of the portion and a method of installing the inspection port.

(1) In order to solve the above-described problem, the present invention includes a frame body portion installed in an opening formed in a wall or ceiling in a room, and the frame body portion is an outer frame body fixed to the opening; An inspection opening having an inner frame that is openably and closably attached to the outer frame, and the wall exposed to the indoor side of the frame body when the frame body is installed in the opening has a wall Alternatively, the inspection port is characterized by being subjected to a ground treatment for attaching a surface finish sheet on the ceiling.

According to the above configuration, since the ground treatment for attaching the surface finishing sheet of the wall or the ceiling to the surface exposed to the indoor side in the frame body portion is made, the surface finishing sheet is attached by the adhesive for applying the surface finishing sheet. Even when the frame body portion is formed of a difficult material, the surface finish sheet can be stuck to the surface of the frame body portion. As a result, the surface exposed to the indoor side of the frame body portion can be covered with the same surface finishing sheet as the wall or ceiling, so that the surface of the frame body portion has an external appearance with a sense of unity with the wall or ceiling.
Further, according to the above configuration, after the frame body portion is installed in the opening formed in the wall or ceiling, the installer is exposed to the indoor side of the frame body portion together with the wall or ceiling together with the wall or ceiling. The surface finish sheet can also be attached to the surface to be attached and the lid attached to the inside of the inner frame. Thereafter, the inner frame body can be opened and closed with respect to the outer frame body by cutting the surface finishing sheet along the outer peripheral edge of the surface of the inner frame body. Thus, in the process of attaching the surface finish sheet to the wall or ceiling, the surface finish sheet can be attached to the surface of the frame body and the lid at the same time. Attaching the surface finish sheet becomes easy, and it takes less time to install the inspection port.

(2) The inner frame body may have a flange that is formed so as to protrude outward from a peripheral edge disposed on the indoor side and covers a peripheral edge disposed on the indoor side of the outer frame body.

  According to the above configuration, since the surface of the outer frame body is not exposed to the indoor side, the ground treatment is not necessary, and thus the ground treatment can be easily performed.

(3) In the configuration of (1) or (2), the base treatment is to provide a base layer on the surface exposed to the indoor side of the frame body portion, and the base layer is the surface The binding force of the finishing sheet to the pasting paste may be greater than the surface of the frame body exposed to the room side.

  According to the said structure, a surface finishing sheet | seat can be stuck with respect to the surface of a frame part with glue through a base layer. Since the base layer has a larger binding force with the glue in the solidified state than the surface exposed to the indoor side in the frame body part, a material (for example, aluminum, aluminum alloy, etc.) in which the frame body part is difficult to stick with the glue. Even if it is formed of a light metal or a resin such as polyethylene or polypropylene, the surface finish sheet can be satisfactorily adhered to the surface of the frame body portion by glue through the base layer. Accordingly, the surface finish sheet can be satisfactorily adhered to the frame body portion, while using a paste that is less harmful to the human body as an adhesive.

(4) In the configuration of (3), the base layer may include a nonwoven fabric or a paper layer.

  According to the above configuration, by using a nonwoven fabric or a paper layer as the underlayer, the surface finish sheet is more excellent with respect to the surface of the frame body portion by the glue through the underlayer through mechanical bonding (anchor effect). Can be attached to.

(5) In the configuration of (4), the base layer may be impregnated with paste for pasting the surface finish sheet.

  According to the above configuration, since the base layer is impregnated with the paste, the affinity between the base layer and the paste is improved, and the surface finish sheet is bonded to the surface of the frame body portion with the paste through the base layer. It can be applied more satisfactorily.

(6) In the configuration of (1) or (2) above, the base treatment may be to attach one surface of a double-sided tape to the surface exposed to the indoor side of the frame body portion. Good.

  According to the said structure, a surface finish sheet can be favorably affixed with respect to the surface exposed to the room inner side in a frame part by the adhesive force of a double-sided tape. Also, apply a base treatment to attach a surface finish sheet on the wall or ceiling by simply attaching one surface of the double-sided tape to the surface exposed to the indoor side of the frame body. Can do.

(7) In order to solve the above-described problems, the present invention provides a frame body installed in an opening formed in a wall or ceiling in a room, an edge portion that is attached to the frame body so as to be openable and closable, and a lid that covers the inside thereof. In order to stick a surface finish sheet on the wall or ceiling to the surface exposed to the indoor side of the inspection port when the frame is installed in the opening. The inspection port is characterized by being subjected to a surface treatment.

According to the above configuration, since the surface treatment is applied to the surface exposed to the indoor side in the frame and the lid, the surface finish sheet is satisfactorily adhered to the surface exposed to the indoor side in the inspection port. Can do. As a result, the surface exposed to the indoor side at the inspection port can be covered with the same surface finish sheet as the wall or ceiling, so that the surface exposed to the indoor side at the inspection port has an appearance with a sense of unity with the wall or ceiling.
Furthermore, since the inspection port is provided with a lid in advance, and the surface treatment is applied to the surface exposed to the indoor side of the lid, the work of attaching the lid to the inspection port at the construction site can be omitted. While the construction can be simplified, the surface finish sheet can be better adhered to the inspection port.
Moreover, according to the said structure, after installing a frame in the opening formed in the wall or the ceiling, a construction person exposes the wall or ceiling together with the wall or the ceiling to the indoor side in the inspection port. A surface finish sheet can also be attached to (for example, a lid part, an edge part, the surface of a frame, etc.). Thereafter, the cover body can be opened and closed with respect to the frame body by cutting the surface finish sheet along the outer peripheral edge of the surface of the cover body. In this way, in the step of attaching the surface finish sheet to the wall or ceiling, the surface finish sheet can be attached to the surface exposed to the indoor side of the inspection port at the same time, so that it is exposed to the indoor side of the inspection port. Attaching the surface finish sheet to the surface becomes easy, and it takes less time to install the inspection port.

(8) In order to solve the above problem, the present invention includes a frame body portion including an outer frame body and an inner frame body that is attached to the outer frame body so as to be freely opened and closed. , A process of installing an inspection port in an opening formed in a wall or ceiling in a room, which has been subjected to a ground treatment for adhering a surface finish sheet, and the surface of the frame body part in the installed inspection port; A step of integrally attaching a surface finish sheet to at least a portion of the wall or ceiling around the inspection port; and
A method for installing an inspection port on a wall or ceiling, comprising a step of cutting the pasted surface finish sheet along the outer peripheral edge of the indoor-side surface of the inner frame.

  According to the above configuration, since the ground treatment for attaching the surface finishing sheet of the wall or the ceiling to the surface exposed to the indoor side in the frame body portion is made, the surface finishing sheet is attached by the adhesive for applying the surface finishing sheet. Even when the frame body portion is formed of a difficult material, the surface finish sheet can be stuck to the surface of the frame body portion. As a result, the surface exposed to the indoor side of the frame body portion can be covered with the same surface finishing sheet as the wall or ceiling, so that the surface of the frame body portion has an external appearance with a sense of unity with the wall or ceiling. Furthermore, in the step of attaching the surface finish sheet to the wall or ceiling, the surface finish sheet is also attached to the surface of the frame body and the lid material at the same time. Wearing work becomes easy, and it takes less time to install the inspection port.

  According to the above configuration, the installation of the inspection port does not take time, and the surface finish sheet is attached to the surface exposed to the indoor side of the frame body portion so that the surface of the frame body portion is the same as the wall or ceiling. Since the appearance can be experienced, the appearance of the inspection port portion can be improved.

It is a perspective view of the inspection port concerning this embodiment of the state installed in the ceiling. It is a perspective view of the inspection port which closed the inner frame from the state shown in FIG. (A) is a top view which shows typically the corner | angular part of the inspection port shown with a dotted line in FIG. 2, (b) is AA arrow sectional drawing in FIG. It is a partial expanded sectional view of the lower part of the back side of an inner frame object in Drawing 3 (b). (A) is a plan view of the opening / closing mechanism mounting bracket, (b) is a side view of the opening / closing mechanism mounting bracket, and (c) is a rear view of the opening / closing mechanism mounting bracket. (A) is a side view of the opening / closing component A, (b) is a side view of the opening / closing component B, (c) is a side view of the opening / closing component C, and (d) 4 is a side view of the opening / closing component D. FIG. (A) is a top view of the square bracket for outer frame bodies, (b) is a rear view of the square bracket for outer frame bodies, and (c) is a side view of the square bracket for outer frame bodies. . (A) is a top view of the square bracket for inner frames, (b) is a rear view of the square bracket for inner frames, and (c) is a side view of the square bracket for inner frames. . (A)-(c) is a figure which shows operation | movement of the opening-closing mechanism until it will be in an open state from the closed state shown in FIG.3 (b). (A) is a front view which shows the lock shaft which comprises a lock mechanism, (b) is the top view. (A) is a top view which shows the lock cam which comprises a lock mechanism, (b) is the side view. (A) is a figure which shows the attachment method of the cover material to an inner frame, (b) is a figure which shows the attachment method of the outer frame to the opening formed in the ceiling. (A) is a figure which shows the sticking method to the ceiling of a surface finishing sheet, a cover material, and a frame part, (b) is a figure which shows the cutting position (cut position) of a surface finishing sheet. . It is a figure which shows the inspection port which concerns on a modification, and the installation method to the ceiling or wall of this inspection port.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

(Outline of inspection port)
First, the outline | summary of the inspection port concerning this embodiment is demonstrated using FIG.1 and FIG.2. FIG. 1 is a perspective view of an inspection port according to the present embodiment installed on a ceiling. FIG. 2 is a perspective view of the inspection port with the inner frame closed from the state shown in FIG. In the present specification, the front side of FIGS. 1 and 2 will be described as the front. The inspection port 10 according to the present embodiment is installed in an opening 100 formed in a wall or ceiling of a building such as a house or a ship. The inspection port 10 includes a rectangular frame body part 200 in a plan view installed in the opening 100. The shape of the frame body portion 200 is not limited to a quadrangular shape in plan view, and may be, for example, another polygonal shape or a circular shape. The frame body portion 200 and an inner frame body 24 that is attached to the outer frame body 27 so as to be openable and closable by rotating around an outer frame body 27 fixed to the opening 100 and one side of the back side (back side). And have. The lid member 8 is attached inside the inner frame body 24. As a result, the opening 100 can be normally closed by closing the inner frame 24. Then, if necessary, the inner frame 24 is opened, and the opening 100 is opened, so that a person enters the back of the ceiling through the inspection port 10 and the like, and various kinds of devices disposed on the back of the ceiling or the inside of the wall. Wiring and piping can be maintained and inspected.

  In the inspection port 10 according to the present embodiment, when the frame body part 200 is installed in the opening 100, the surface exposed to the indoor side of the frame body part 200 (the surface on the indoor side of the inner frame body 24) is a wall. Alternatively, a base treatment for adhering the ceiling surface finish sheet 400 (FIG. 13) is applied (in FIG. 2, the base layer 23 is attached). Thus, even when the frame body portion 200 is formed of a material that is difficult to stick with the paste (starch paste) of the surface finishing sheet 400, the surface finishing sheet 400 is placed on the surface of the frame body portion 200. Can be attached. The frame body portion 200 is formed of, for example, a light metal such as aluminum or an aluminum alloy, or a resin such as polyethylene or polypropylene. The surface finish sheet 400 is, for example, a wallpaper such as a vinyl cloth, a paper cloth, or a woven cloth.

  By the above, since the surface exposed to the indoor side in the frame body part 200 can be covered with the same surface finishing sheet 400 as the wall or ceiling, the surface of the frame body part 200 has an appearance with a sense of unity with the wall or ceiling, The appearance of the inspection port 10 can be improved. Moreover, after installing the frame part 200 in the opening 100 formed in the wall or the ceiling by the above, the installer is exposed to the indoor side of the frame part 200 together with the wall or the ceiling together with the wall or the ceiling. The surface finish sheet 400 can also be attached to the surface to be covered and the lid member 8 attached to the inside of the inner frame body 24. Thereafter, the inner frame body 24 can be opened and closed with respect to the outer frame body 27 by cutting the surface finishing sheet 400 along the outer peripheral edge of the inner surface of the inner frame body 24. Thus, in the process of sticking the surface finishing sheet 400 to the wall or ceiling, the surface finishing sheet 400 can be stuck to the surface of the frame body part 200 and the lid member 8 at the same time. The attaching operation of the surface finish sheet 400 to the surface and the lid member 8 becomes easy, and it takes less time to install the inspection port 10.

(Details of inspection port configuration: overall configuration)
Details of the configuration of the inspection port 10 will be described below with reference to FIGS. First, the whole structure of the inspection port 10 is demonstrated using FIGS. 1-3. 3A is a plan view schematically showing a corner portion of the inspection port indicated by a dotted line in FIG. 2, and FIG. 3B is a cross-sectional view taken along line AA in FIG. As described above, the inspection port 10 according to the present embodiment has the rectangular frame body portion 200 in plan view. The frame part 200 can be installed not only in the ceiling but also in the opening 100 formed in the wall. In the following description, the frame body part 200 is described as being installed in the opening 100 formed in the ceiling. The frame body portion 200 has a side wall extending in the vertical direction, and includes a rectangular outer frame body 27 in plan view. The outer frame body 27 is formed in a shape that matches the shape of the opening 100 in plan view, and is arranged along the edge of the opening 100 and fixed to the opening 100.

  Inside the outer frame body 27, a small inner frame body 24 that is substantially similar to the outer frame body 27 and that is opened and closed by rotating about one side thereof is attached. Details of the opening / closing mechanism will be described later. The lid 8 is supported by the lower part inside the inner frame body 24 (flange 242 in FIG. 4). In addition, the cover material 8 consists of the same board | plate material as the wall or ceiling which installs the inspection port 10, and the lower surface is a surface state which is easy to stick the surface finish sheet 400 on it. Instead of this, a plate-like body made of a material to which the surface finish sheet 400 is easily attached may be laid under the lid member 8. With such a configuration, the surface finish sheet 400 can be more satisfactorily adhered to the indoor surface.

  A lock mechanism 300 is provided on one side of the inner frame 24 opposite to the one side that is the center of rotation. By operating the lock mechanism 300 from the outside with a screwdriver or the like, the state of the lock mechanism 300 is switched between a locked state in which the rotation of the inner frame body 24 is prohibited and a release state in which the rotation is permitted. Can do.

  In the present embodiment, the inner frame body 24 has a flange 245 formed so as to protrude outward from a peripheral edge disposed on the indoor side (lower end side when installed on the ceiling). The flange 245 protrudes to a position that covers the periphery of the outer frame body 27 that is disposed on the indoor side. Thereby, the inspection port 10 becomes a single frame type in which the surface of the outer frame 27 is not exposed to the indoor side. For this reason, if the ground surface treatment is performed on the indoor side surface of the inner frame body 24 (the lower surface of the flange 245, etc.), the ground surface treatment becomes unnecessary on the indoor side surface of the outer frame body 27, thereby simplifying the ground surface processing. Can be done. Thus, the surface finish sheet 400 can be satisfactorily adhered to the surface exposed to the indoor side of the frame body part 200 while performing the ground treatment easily. This ground processing is a feature of the present embodiment, and details will be described later.

(Details of inspection port configuration: opening and closing mechanism)
Next, the opening / closing mechanism of the frame part 200 will be described with reference to FIGS. As shown in FIGS. 3 (a) and 3 (b), an outer frame square bracket is provided outside the corner (the inner corner in FIGS. 1 and 2) where the opening / closing mechanism of the outer frame 27 is installed. 25 is attached. Fig.7 (a) is a top view of the square bracket for outer frames, (b) is a rear view of the square bracket for outer frames, and (c) is a side view of the square bracket for outer frames. It is. The outer frame body square bracket 25 is a plate-like body whose main surface is bent at a right angle. Two grooved through holes 25a and 25b for screwing bolts are formed on one surface, and the outer frame body 27 is connected to the outer frame body 27. A rectangular opening 25c used for fixing is formed, and rectangular openings 25d and 25e used for fixing to the outer frame body 27 are formed on the other surface. The outer frame square bracket 25 is fixed to the inner side of the outer frame 27 so that the surface side where the through holes 25a and 25b are formed is parallel to the side that is the center of rotation of the inner frame 24. The

  As shown in FIGS. 3 (a) and 3 (b), an opening / closing component is mounted on the inner side of the corner (the inner corner in FIGS. 1 and 2) where the opening / closing mechanism of the outer frame 27 is installed. A metal fitting 16 is attached. 5A is a plan view of the opening / closing component mounting bracket 16, FIG. 5B is a side view of the opening / closing component mounting bracket 16, and FIG. 5C is a rear view of the opening / closing component mounting bracket 16. It is. The opening / closing component mounting bracket 16 is a member for mounting an opening / closing mechanism (an opening / closing component A12 and an opening / closing component B15, which will be described later) inside the corner of the outer frame 27. The opening / closing component mounting bracket 16 is a plate-like member bent at a right angle, and one side serves as an outer frame mounting portion 16b and the other side serves as an opening / closing component mounting portion 16a. The outer frame attaching portion 16b is formed with a rectangular opening 160e used for fixing to the outer frame body 27 and two through holes 160c and 160d. The opening / closing component mounting bracket 16 is fixed to the inside of the corner of the outer frame body 27 so that the outer frame mounting portion 16b is parallel to the side that is the center of rotation of the inner frame body 24. The outer frame body 27 is sandwiched between the metal fitting 16 and the outer frame body square metal fitting 25.

  The opening / closing component mounting portion 16a is formed with two through holes 160a and 160b arranged in the height direction. The through holes 160a and 160b are used to open and close an opening / closing mechanism (an opening / closing component A12, which will be described later). Part B15) is pivotally supported. In addition, although the two opening / closing component mounting brackets 16 are used for the frame part 200, the two opening / closing component mounting brackets 16 are line-symmetric in plan view.

  In the present embodiment, the inner frame body square bracket 26 is attached to the outside of the corner part (the inner corner part in FIGS. 1 and 2) where the opening / closing mechanism of the inner frame body 24 is installed. An opening / closing mechanism is attached to the outer side of the inner frame square bracket 26. 8A is a plan view of the square bracket 26 for the inner frame body, FIG. 8B is a rear view of the square bracket 26 for the inner frame body, and FIG. 8C is a square bracket 26 for the inner frame body. FIG. The inner frame square bracket 26 is a plate-like body whose main surface is bent at a right angle, rectangular openings 26a and 26b for fixing to the inner frame 24 are formed on one surface, and the other A rectangular opening 26c for fixing the inner frame body 24 is formed on this surface. On the other surface, a plate-like body 110 is projected and formed by pressing, and the plate-like body 110 is used for pivotally supporting an opening / closing mechanism (open / close component C13, open / close component D14). The through holes 110a and 110b are formed side by side. In addition, it fixes to the inner frame 24 so that the surface in which the rectangular opening parts 26a and 26b are formed may be along the one side used as the center of rotation. In addition, two inner frame brackets 26 are used in the frame portion 200, but the two inner frame brackets are axisymmetric in a plan view.

  Next, the configuration of the opening / closing mechanism that is attached to the opening / closing component mounting bracket 16 and the inner frame bracket 26 will be described. The opening / closing mechanism is formed by connecting four flat opening / closing components (opening / closing component A12, opening / closing component B15, opening / closing component C13, opening / closing component D14). 6A is a side view of the opening / closing component A, FIG. 6B is a side view of the opening / closing component B, FIG. 6C is a side view of the opening / closing component C, and FIG. These are side views of the component D for opening and closing. FIGS. 9A to 9C are views showing the operation of the opening / closing mechanism from the closed state shown in FIG. 3B to the open state.

  The opening / closing component A12 is bent in a square shape when viewed from the side, and through holes 12a and 12b are formed at both ends thereof. The opening / closing component B15 is a member extending in a straight line when viewed from the side, and includes a first portion having a width of a predetermined dimension in the vertical direction and a second portion having a width in the vertical direction larger than this portion. A through hole 15a is formed at the tip of the first portion, and through holes 15b and 15c are formed at the upper end of the second portion so as to be arranged at a predetermined interval in the horizontal direction. The opening / closing component C13 has a shape that is bent zigzag three times in a side view. Specifically, the opening / closing component C13 includes a first straight line portion extending in the vertical direction, a second straight line portion extending substantially horizontally from the lower end of the first straight line portion and extending in the horizontal direction, and a tip of the second straight line portion. The third portion is bent at a substantially right angle and extends in the vertical direction, and the fourth straight portion is bent at a substantially right angle from the tip of the third portion and extends in the lateral direction. Through holes 13b and 13c are formed in this order from above at predetermined intervals so as to be aligned in the vertical direction in the first straight line portion, and a through hole 13a is formed at the tip of the fourth straight line portion. The opening / closing component D14 has a shape bent at a substantially right angle at a mid position in a side view, and includes a portion extending linearly in the vertical direction and a portion extending linearly in the horizontal direction. A through hole 14b is formed at the upper end of the portion extending linearly in the vertical direction, and a through hole 14a is formed at the tip of the portion extending linearly in the horizontal direction.

  As shown in FIG. 9A, the opening / closing component A12 is pivotally supported by the through hole 160a in the opening / closing component mounting bracket 16 through the through hole 12a, and is also opened and closed by the through hole 12b. It is pivotally supported by the through hole 13b in C13. The opening / closing component B15 is pivotally supported by the through hole 160b in the opening / closing component mounting bracket 16 via the through hole 15a. The opening / closing component B15 is pivotally supported by the through hole 15b in the through hole 13c in the opening / closing component C13, and is supported by the through hole 15c in the through hole 14b in the opening / closing component D14. Yes. In FIGS. 3A and 3B, reference numeral 17 denotes a shaft support member used for axial support, and reference numeral 18 is interposed between the opening / closing component D14 and the opening / closing component B15. Shows a washer. Although illustration is omitted, a shaft support member 17 and a washer 18 having the same function are disposed at each shaft support portion of the opening / closing mechanism.

  The opening / closing component C13 is pivotally supported by the through-hole 110a through the through-hole 110a through the through-hole 110a, and the opening-and-closing component D14 is through the through-hole 14a through the inner-frame body bracket 26. The opening / closing mechanism is fixed to the inner frame square bracket 26 by being pivotally supported by the through hole 110b.

  In the opening / closing mechanism, the opening / closing component A12, the opening / closing component B15, the opening / closing component C13, and the opening / closing component D14 are pivotally supported as described above, so that the through holes 12a, 12b (13b), 15b (13c), The link mechanism X is formed by four positions 15a, and the link mechanism Y is configured by four positions of the through holes 13a, 13c (15b), 15c (14b), and 14a. Thus, the through-hole 13c (15b) exists in common to both the link mechanisms X and Y, and both the link mechanisms X and Y are connected by the through-hole 13c (15b). As a result, when an external force is applied to the link mechanisms X and Y, the link mechanisms X and Y are gradually deformed while balancing the forces with each other around the through hole 13c (15b). The opening and closing operation of the inner frame body 24 becomes slow and smooth. 9A to 9C, the shaft support portions that are not directly supported by the inner frame body 24 or the outer frame body 27 are denoted as α, β, and γ. When the opening / closing mechanism performs the opening operation, as shown in FIGS. 9A to 9C, the positions of the shaft support portions α, β, and γ are changed.

(Details of inspection port configuration: lock mechanism)
Next, the lock mechanism 300 will be described with reference to FIGS. 3B, 10, and 11. FIG. 10A is a front view showing the lock shaft 21 constituting the lock mechanism 300, and FIG. 10B is a plan view thereof. FIG. 11A is a plan view showing the lock cam 19 constituting the lock mechanism 300, and FIG. 11B is a side view thereof. The lock mechanism 300 includes a rod-like lock shaft 21 attached so as to extend in the vertical direction, and a driver groove 21a for inserting a driver is formed on a lower end surface (left end surface in FIG. 10), and an upper end is formed on the upper end. A convex portion protruding upward is formed. A bottomed hole 21b is formed in the convex portion, and a lock cam 19 is attached to the convex portion.

  The lock cam 19 is a substantially rectangular flat plate member in plan view, and has a through hole 19a. The lock cam 19 is fixed to the upper end of the lock shaft 21 by inserting the fixing bracket 28 into the bottomed hole 21b with the convex portion of the lock shaft 21 disposed in the through hole 19a. The lock cam 19 is also rotated. One corner portion of the lock cam 19 is an inclined portion that is inclined upward. With this inclined portion, the lock cam 19 can be smoothly moved onto the upper end portion of the outer frame body 27 by the rotation of the lock cam 19. it can. When the lock cam 19 is positioned on the upper end portion of the outer frame body 27, the lock cam 19 is in a locked state, and when it is not positioned, the lock cam 19 is in an open state. Further, the diagonal portion of the inclined portion of the lock cam 19 is bent downward, and the bent portion functions as a stopper, thereby restricting the lock cam 19 from rotating beyond a certain range. it can.

(Details of inspection port configuration: surface treatment)
Hereinafter, with reference to FIG. 2, FIG. 3B, and FIG. 4, background processing for the inner frame 24, which is a feature of the present embodiment, will be described. FIG. 4 is a partially enlarged cross-sectional view of the lower part of the back side of the inner frame body in FIG. As shown in FIG. 4, the inner frame body 24 is formed with a flange 242 extending from the lower end of the side wall 241 to the inside at a substantially right angle. The lid member 8 is supported by the flange 242. Further, the inner frame body 24 is formed with an outward projecting portion 243 at a position slightly above the lower end of the side wall 241, and is formed at the tip of the projecting portion 243 in parallel with the inner frame body 24. A wall portion 244 is formed. A flange 245 extending from the lower end of the wall portion 244 to the outside at a substantially right angle is formed. As described above, the flange 245 protrudes to a position that covers the peripheral edge of the outer frame body 27 that is disposed on the indoor side. As a result, the inspection port 10 is a single that prevents the surface of the outer frame body 27 from being exposed to the indoor side. Frame type.

  In the present embodiment, the surface exposed to the indoor side in the frame body portion 200 is the lower surface of the flange 242 and the lower surface of the flange 245 in the inner frame body 24, with respect to the lower surface of the flange 242 and the lower surface of the flange 245. A base treatment for attaching the surface finish sheet 400 is performed. In the present embodiment, the base treatment is to provide the base layer 23 so as to cover the surface exposed to the indoor side in the frame body portion 200. The foundation layer 23 has a greater binding force with the adhesive paste of the surface finish sheet 400 than the surface exposed to the indoor side in the frame body portion 200. Accordingly, the surface finish sheet 400 can be adhered to the lower surface of the flange 242 and the lower surface of the flange 245 through the base layer 23 by glue. Since the base layer 23 has a larger binding force with the glue in the solidified state than the surface exposed to the indoor side of the frame body part 200, a material (for example, aluminum, aluminum, etc.) on which the frame body part 200 is difficult to stick with glue. Even if it is formed of a metal such as an alloy, or a resin such as polyethylene or polypropylene, the surface finish sheet 400 can be satisfactorily adhered to the lower surface of the flange 242 and the lower surface of the flange 245 through the base layer 23. It can be attached to. Accordingly, the surface finish sheet 400 can be satisfactorily adhered to the lower surface of the flange 242 and the lower surface of the flange 245 while using a paste that is less harmful to the human body as an adhesive.

  The underlayer 23 is a non-woven fabric in this embodiment, but may be a paper layer or the like. The non-woven fabric, paper layer, and the like can adhere the surface finish sheet 400 satisfactorily by mechanical bonding (anchor effect) by the glue entering and solidifying into the irregularities. The underlayer 23 is attached to the lower surface of the flange 242 and the lower surface of the flange 245 with double-sided tape or the like.

  In addition, the base layer 23 may be impregnated with paste for pasting the surface finish sheet 400, or may be dried in a state impregnated with paste. According to this configuration, the affinity between the glue and the base layer 23 is improved, and the surface finish sheet 400 can be satisfactorily adhered to the base layer 23.

  In the present embodiment, the ground treatment is performed in advance from the stage of shipping the inspection port 10, but when installing the inspection port 10 in the opening 100 formed on the ceiling or wall, the frame portion 200 may be subjected to a ground treatment.

(How to install the inspection port on the ceiling)
Below, the method to install the inspection port 10 in the opening 100 formed in the ceiling is demonstrated using FIG.12 and FIG.13. FIG. 12A is a diagram showing a method for attaching the lid member 8 to the inner frame body 24, and FIG. 12B shows a method for attaching the outer frame body 27 to the opening 100 formed in the ceiling. FIG. FIG. 13A is a diagram illustrating a method for attaching the surface finish sheet 400 to the ceiling and the inspection port, and FIG. 13B is a diagram illustrating a cutting position (cut position) of the surface finish sheet 400. .

  First, the process of installing the inspection port 10 in the opening 100 formed in the ceiling in the room is performed. Specifically, first, the ceiling is cut into a quadrangle (for example, 420 mm × 420 mm) to form the opening 100. As shown in FIG. 12 (a), the lid member 8 is fitted into the inner frame body 24 using the cut ceiling as the lid member 8. Note that, as shown in FIG. 12A, the lid member 8 may be screwed to the inner frame body 24. Thereafter, as shown in FIG. 12B, the outer frame body 27 is fitted into the opening 100 and, for example, screws are attached to the edge of the opening 100 from the inside of the outer frame body 27, so that the outer frame body 27 Is fixed to the opening 100. Thereafter, the inner frame body 24 is fitted into the outer frame body 27, and the lock mechanism 300 is brought into the locked state.

Next, the process of sticking the surface finishing sheet 400 integrally on the surface of the frame body part 200 in the installed inspection port 10 and at least the portion around the inspection port 10 on the ceiling is performed.
Specifically, as shown in FIG. 13A, the surface finish sheet 400 is attached to the ceiling, the lower surface of the inner frame body 24 (the lower surface of the flange 242 and the lower surface of the flange 245), and the lid member 8. To do.

  Then, a process of cutting the pasted surface finish sheet 400 along the outer peripheral edge of the indoor-side surface of the inner frame body 24 is performed. Specifically, the cutting position indicated by the alternate long and short dash line in FIG. 13B, that is, the position outside the lower surface of the inner frame 24 (the position outside the lower surface of the flange 245) is cut (cut) with a blade. ). As a result, the inner frame 24 can be opened and closed. In addition, although the installation method of the inspection port 10 to a ceiling was mentioned above, the installation method to a wall is also the same.

(Modification)
(1) In this embodiment, attaching the base layer 23 is a base process, but the base process is not limited to this process. For example, in the base treatment, not the base layer 23 but one surface of the double-sided tape is attached to the surfaces (the lower surface of the flange 242 and the lower surface of the flange 245) exposed on the indoor side in the frame body portion 200. It may be. According to this configuration, the surface finish sheet 400 can be satisfactorily adhered to the lower surface of the flange 242 and the lower surface of the flange 245 by the adhesive force of the double-sided tape. In addition, it is possible to perform a base treatment for adhering the surface finish sheet 400 by a simple process of adhering one surface of the double-sided tape to the surface of the frame body portion 200 exposed to the indoor side. .

(2) In the present embodiment, the surface of the outer frame body 27 is a single frame type inspection port 10 that is not exposed to the indoor side, but the surface of the inner frame body 24 'and the outer frame body as shown in FIG. Similar to the present embodiment, a ground treatment may be applied to a double frame type inspection port that doubles with the surface of 27 'and appears in the room. In this case, a base treatment such as sticking the base layer 23 is applied to both the surface exposed to the indoor side of the inner frame body 24 ′ and the surface exposed to the indoor side of the outer frame body 27 ′. Is done. In this case, the position of the boundary between the inner frame body 24 ′ and the outer frame body 27 ′ is the cut position.

(3) In the present embodiment, the inspection port 10 including the frame body portion 200 having the outer frame body 27 and the inner frame body 24 is described. However, a lid member that closes the inner side of the inner frame body 24 is provided in advance. Also good. For example, the frame body portion may not be provided with the inner frame body 24 but may be configured by a frame body including only the outer frame body 27. In this case, instead of the inner frame body 24, the inspection port is a lid body having an edge portion that is attached to the frame body so as to be freely opened and closed and a lid portion that closes the inside thereof. And when the frame is installed in the opening, the surface (the surface of the frame and / or the lid) exposed to the indoor side at the inspection port is a base for attaching a surface finish sheet of the wall or ceiling Processing has been applied.

According to the above configuration, since the ground treatment is applied to the surface exposed to the indoor side of the frame body and / or the lid body, the frame body or the frame body is difficult to be adhered by the paste of the surface finish sheet. Even when the lid is formed, the surface finish sheet can be attached to the surface exposed to the indoor side at the inspection port. As a result, the surface exposed to the indoor side at the inspection port can be covered with the same surface finish sheet as the wall or ceiling, so that the surface exposed to the indoor side at the inspection port has an appearance with a sense of unity with the wall or ceiling.
Furthermore, since the inspection port is provided with a lid in advance, and the surface treatment is applied to the surface exposed to the indoor side of the lid material, the work of attaching the lid material to the inspection port at the construction site can be omitted. While the construction can be simplified, the surface finish sheet can be adhered more favorably to the lid.
Moreover, according to the said structure, after installing a frame in the opening formed in the wall or the ceiling, a construction person exposes the wall or ceiling together with the wall or the ceiling to the indoor side in the inspection port. A surface finish sheet can also be attached to (for example, a lid part, an edge part, the surface of a frame, etc.). Thereafter, the lid body can be opened and closed with respect to the frame body by cutting the surface finishing sheet along the outer peripheral edge of the surface of the lid body (edge). In this way, in the step of attaching the surface finish sheet to the wall or ceiling, the surface finish sheet can be attached to the surface exposed to the indoor side of the inspection port at the same time, so that it is exposed to the indoor side of the inspection port. Attaching the surface finish sheet to the surface becomes easy, and it takes less time to install the inspection port.

DESCRIPTION OF SYMBOLS 10 Inspection port 23 Underlayer 24, 24 'Inner frame 245 Flange 27, 27' Outer frame 100 Opening 400 Surface finish sheet

Claims (8)

An outer frame body that is provided in an opening formed in a wall or ceiling in a room, the frame body section being fixed to the opening, and an inner frame body that is attached to the outer frame body so as to be freely opened and closed Having an inspection port,
When the frame body portion is installed in the opening, the surface exposed to the indoor side of the frame body portion is subjected to a ground treatment for attaching the surface finishing sheet of the wall or the ceiling. An inspection port characterized by that. The inner frame body is formed so as to protrude outward from a peripheral edge disposed on the indoor side, and has a flange that covers the peripheral edge disposed on the indoor side in the outer frame body,
The inspection port according to claim 1. The ground treatment is to provide a ground layer on the surface exposed to the indoor side of the frame body portion,
The base layer has a greater binding force with the paste for pasting the surface finish sheet than the surface exposed to the indoor side of the frame body part,
The inspection port according to claim 1 or 2, wherein The foundation layer includes a nonwoven fabric or a paper layer,
The inspection port according to claim 3. The base layer is impregnated with paste for pasting the surface finish sheet,
The inspection port according to claim 4 characterized by things. The base treatment is to adhere one surface of a double-sided tape to the surface exposed to the indoor side in the frame body portion.
The inspection port according to claim 1 or 2, wherein An inspection port comprising a frame body installed in an opening formed in a wall or ceiling in a room, and a lid body having an edge portion that can be freely opened and closed attached to the frame body and a lid portion that closes the inside thereof.
When the frame is installed in the opening, the surface exposed to the indoor side of the inspection port is subjected to a ground treatment for attaching the surface finishing sheet of the wall or the ceiling. Inspection port characterized by. A frame body portion including an outer frame body and an inner frame body that is attached to the outer frame body so as to be openable and closable is provided, and a surface treatment is applied to the surface of the frame body portion for attaching a surface finish sheet. Installing the inspection port in an opening formed in a wall or ceiling in the room,
A step of integrally attaching a surface finish sheet to the surface of the frame body portion in the installed inspection port and at least a portion of the wall or ceiling around the inspection port; and
A step of cutting the pasted surface finish sheet along the outer peripheral edge of the indoor-side surface of the inner frame,
A method of installing an inspection port on a wall or ceiling characterized by including

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