JP6697290B2 - Inspection device - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection port device attached to an inspection port formed for inspecting a pipe or the like arranged on a wall surface or a ceiling of a house.

  Conventionally, an inspection port provided for inspecting the inside of a wall surface of a building is closed by an inspection port cover (cover member). The inspection lid is opened when inspecting the inside of the wall surface and closed after the inspection is completed. Patent Documents 1 and 2 disclose an example of such an opening / closing structure for an inspection port.

  The inspection port device disclosed in Patent Document 1 includes a frame member (hanging frame part) attached to the inner peripheral surface of the inspection port, a lid mounting frame part extending from the frame member toward the center side of the inspection port, and the frame. It has a pressing piece formed in an arcuate shape from each side of the member toward the lid mounting frame portion, and a lid member (inspection lid) sandwiched by the upper surface of the lid mounting frame portion and the lower end of the pressing piece. (See FIG. 1 of Patent Document 1).

  In the procedure for attaching the inspection port device disclosed in Patent Document 1, first, a frame member is attached to the inspection port. Then, the lid member is fitted into the opening of the frame member, and the lid member is arranged so that the lid member is sandwiched between the lid mounting frame portion and the pressing piece to close the opening of the frame member. By arranging the lid member in this way, the pressing piece presses the peripheral edge portion of the lid member toward the lid mounting frame portion, so that the rattling of the lid member attached to the frame member can be suppressed.

  As another conventional example, for example, Patent Document 2 discloses a configuration of an inspection port frame member attached to the inner peripheral surface of the inspection port. The inspection port frame member disclosed in Patent Document 2 has an abutting portion that abuts the lid member on the space behind the wall, and a cover portion that presses the lid member from the indoor space side. The lid member is prevented from coming off the inspection port frame member by pressing the peripheral portion of the lid member on the indoor space side with the cover portion while abutting the wall space side of the lid member on the contact portion.

Japanese Utility Model Publication No. 62-20585 Design Registration No. 1263713

  In the inspection port device disclosed in Patent Document 1, when the lid member is removed from the state in which the frame member is attached to the lid member, the lid member is pushed once to release the holding by the pressing piece, and then the lid member is tilted to tilt the frame member. Since it is necessary to remove the lid member from the lid, the work of removing the lid member is troublesome. Further, in the inspection port device disclosed in Patent Document 2, since the cover member that presses the peripheral edge portion of the lid member is made of a hard material, if the thickness of the lid member attached to the frame member changes subtly, the cover member causes In some cases, the peripheral edge of the lid member cannot be pressed firmly.

  The present invention has been made in view of the above circumstances, and provides an inspection port device in which the lid member can be firmly attached to the frame member even if the thickness of the lid member is slightly different, and the lid member can be easily removed. The purpose is to provide.

In order to solve the above problems, the inspection port device of the present invention is a frame member provided along an edge of an inspection port formed in a wall that separates an indoor space and a back wall space, and an opening included in the frame member. A plate-shaped lid member attached so as to close the cover, and an engaging portion that is detachably engaged with the engaged portion formed on the frame member, and the engaging portion is the engaged portion. A cover member that covers the peripheral portion of the lid member held by the frame member from the indoor side in a state of being engaged with the cover member, and a state in which the engaging portion is attached to the engaged member and the engaged portion engages with the engaged portion. And an abutting piece that comes into contact with the peripheral edge of the lid member from the indoor space side, the abutting piece being made of a flexible material, and the abutting piece on the opposite side of the abutting piece from the abutting piece. An attachment position at which an end portion is attached to the cover member is closer to the engaging portion than an inner peripheral edge of the cover member in a state where the engaging portion engages with the engaged portion, and the abutting piece is An inclined portion that extends from the attachment position toward the inner peripheral edge of the cover member and is formed along a surface that is non-parallel to a surface that is orthogonal to the surface of the lid member; and the inclined portion that is formed integrally with the inclined portion. A vertical portion extending from the tip of the portion toward the surface of the lid member and formed along a surface orthogonal to the surface of the lid member (claim 1).

  According to the present invention, the cover member can be attached to the frame member by engaging the engaging portion of the cover member with the engaged portion of the frame member, and the peripheral portion of the lid member is fixed by the attached cover member. It can be covered from the indoor side. This can prevent the lid member from coming off the frame member. Moreover, since the abutting piece made of a flexible material comes into contact with the peripheral edge of the lid member from the indoor space side in a state where the engaging portion is engaged with the engaged portion, Whether the contact member is elastically deformed or pressed against the peripheral edge portion of the lid member, the lid member may be elastically deformed regardless of whether the thickness of the lid member is slightly thick or thin or the wallpaper is attached to the surface of the lid member. Can be fixed to the frame member. Further, since the contact piece is elastically deformed, the gap between the lid member and the cover member is narrowed, so that it is possible to make it difficult to see the step between the lid member and the cover member, and it is possible to obtain a good appearance. Moreover, when a finger is inserted into the gap between the cover member and the lid member, the contact piece is deformed and the finger can be inserted into this gap, so by inserting the finger into this gap and pushing up the finger, It is also possible to easily release the engagement of the engaging portion that is engaged with the engaged portion of the frame member.

Moreover, since the attachment position of the contact piece is located inside the cover member rather than the end portion of the cover member, it is easy to hook a finger in the gap between the cover member and the lid member. The cover member can be easily removed from the frame member by pushing up.

Further, since the contact piece is bent at the connecting portion between the inclined portion and the vertical portion, when the contact piece is sandwiched between the cover member and the lid member, the contact piece is deformed and the peripheral edge portion of the lid member is deformed. Can be pressed from the indoor space side. In addition, even if the thickness of the entire lid member including the wallpaper is increased by attaching the wallpaper to the lid member, the contact piece is deformed to absorb the thickness of the wallpaper and absorb the peripheral portion of the lid member. Can be pressed from the indoor space side. Moreover, since the contact piece has a shape that is easily bent, the contact piece is easily deformed when a finger is inserted into the gap between the cover member and the lid member, and the finger is pushed up to engage the engaged portion of the frame member. It is possible to easily release the engagement of the engaging portion engaged with the.

In the above structure, preferably, the inner peripheral edge of the cover member and the inner peripheral edge of the vertical portion are substantially flush with each other ( claim 2 ).

  According to the above configuration, in the state where the engaging portion is engaged with the engaged portion (that is, the state where the contact piece presses the peripheral edge portion of the lid member), the contact piece acts as the cover member from the indoor space side. Since it is hidden and cannot be seen, it is possible to improve the appearance of the inspection port device from the indoor space side with the lid member attached to the frame member.

In the above-mentioned configuration, preferably, one of the engaged portion and the engaging portion is a concave portion in which a projecting piece is formed on the inner wall, and the other of the engaged portion and the engaging portion has a thickness. The large thickened portion is a convex portion formed at the tip, and the engaging portion engages with the engaged portion by inserting the convex portion into the concave portion and allowing the thickened portion to pass over the projecting piece. ( Claim 3 ).

  According to the above configuration, by lightly pushing the convex portion into the concave portion, the thickened portion can ride over the projecting piece and easily engage the convex portion with the concave portion. By lightly pulling the convex portion in this engaged state, the thickened portion rides over the projecting piece in the direction opposite to the direction in which the convex portion is pushed, and the convex portion can be easily removed from the concave portion. In this way, the engaging portion can be easily engaged with the engaged portion, and the engaged state can be easily released.

In the above configuration, preferably, the projecting piece includes an inclined surface having a thickness that gradually increases from the indoor space side tip toward the back wall space side, an end portion of the tilted surface on the back wall space side, and an inner wall. And a step that vertically connects the two, and the thickened portion has a substantially circular cross section ( claim 4 ).

  According to the above configuration, when the engaging portion is pushed into the engaged portion, the thickened portion having a substantially circular cross section slides on the inclined surface of the engaged portion. Can be smoothly operated to engage the engaging portion with the engaged portion. In addition, when the engagement portion is engaged, the thickened portion is caught on the step, so that the engagement state is less likely to be released. Moreover, even when the engaging portion cannot be completely engaged with the engaged portion due to the large thickness of the lid member, the curved surface having a substantially circular cross section of the engaging portion is partially attached to the tip of the engaged portion. By bringing them into contact with each other, a frictional force is exerted between the curved surface of the engaging portion and the tip of the hook-shaped portion of the engaged portion, so that the engaged portion can be prevented from coming off the engaging portion. Also in this case, since the contact piece can press the peripheral portion of the lid member, it is possible to fix the lid member having a slightly thick thickness or the lid member having the decorative sheet attached thereto to the frame member. ..

  According to the present invention, it is possible to provide an inspection port device in which the lid member can be firmly attached to the frame member even if the thickness of the lid member is slightly different, and the lid member can be easily removed.

It is the front view which looked at the inspection mouth apparatus (the state which attached the lid member to the frame member) concerning the 1st embodiment of the present invention from the indoor space side. It is the II-II sectional view taken on the line in FIG. It is the III-III sectional view taken on the line in FIG. FIG. 4 is a partially enlarged view of the periphery of the engaged portion in FIG. 3. It is a perspective view of a corner connection member. It is a partially cutaway perspective view of a frame member after attaching two side members to a corner connecting member. It is sectional drawing which shows the state before attaching a lid member to a frame member at the time of attaching the inspection port apparatus shown in FIG. It is sectional drawing which shows the state which inserted the cover member in the opening of a frame member at the time of attaching the inspection port apparatus shown in FIG. FIG. 4 is a view corresponding to FIG. 3 when a lid member having a larger thickness is attached to the inspection port device of the first embodiment. FIG. 10 is a view corresponding to FIG. 3 when wallpaper is attached to the lid member of FIG. 9.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiments are examples of embodying the present invention and do not limit the technical scope of the present invention.

<First Embodiment: Configuration of Inspection Port Device>
FIG. 1 is a front view of an inspection port device (a state in which a lid member 2 is attached to a frame member 1) of the present embodiment viewed from the indoor space side, and FIG. 2 is a sectional view taken along line II-II in FIG. . As shown in FIGS. 1 and 2, the inspection port device 100 of the present embodiment is provided along the periphery of the inspection port T1 of the wall material K (only FIG. 2 is shown) that partitions the indoor space S1 and the space behind the wall S2. A substantially rectangular frame member 1, a plate-like lid member 2 attached to the frame member 1, and a cover detachably attached to the frame member 1 for fixing the peripheral edge of the lid member 2 to the frame member 1. And a member 5.

  The wall material K is fixed to the base girder material SK as shown in FIG. 2, and is a horizontal wall that connects the floor and the ceiling and is parallel to the vertical direction. The base girder material SK is made of, for example, a wood material, a lightweight steel frame, or a steel pipe. The inspection port T1 is a substantially rectangular opening formed in the wall material K.

  The frame member 1 is a substantially quadrangular frame body that is provided along the peripheral edge of the inspection port T1 and has an opening T2 in the center. Side members (upper side member 1a, lower side member 1b, The left side member 1c and the right side member 1d) and the corner connecting members 3a to 3d provided at the four corners of the frame member 1 for connecting the side members 1a to 1d, respectively. Each of the side members 1a to 1d is a long isosceles trapezoid whose both ends are cut off at an angle of 45 ° obliquely, and by connecting the abutting portions of the side members 1a to 1d with the corner connecting members 3a to 3d. It is integrated. Hereinafter, the corner connecting members 3a to 3d may be referred to as "corner connecting member 3".

  Each of the side members 1a to 1d and the corner connecting members 3a to 3d is made of a hard material having a strength to support the lid member 2. Examples of the hard material include hard vinyl chloride resin, ABS resin, polystyrene resin, polyethylene resin, polypropylene resin, aluminum or aluminum alloy.

  The lid member 2 is a plate member having a substantially rectangular flat plate shape and having a predetermined thickness that can close the opening T2 of the frame member 1. In FIG. 1, the broken line indicates the outer circumference of the lid member 2. As shown in FIG. 1, the outer periphery of the lid member 2 is located outside the inner peripheral edge of the cover member 5, so that the lid member 2 does not come off to the indoor space S1 side of the frame member 1. .. Here, "outside" means the side away from the center of the inspection port T1, and "inside" means the center side of the inspection port T1.

  The cover member 5 fixes the lid member 2 in the frame member 1 by pressing the peripheral edge of the lid member 2 from the indoor space S1 side. Four cover members 5 are attached to each of the side members 1a to 1d of the frame member 1 on the indoor space S1 side, and a total of four cover members 5 are provided to press the peripheral edge of the lid member 2 from the indoor space S1 side. It has a connecting portion 52 that connects the cover main body portion 51 and the frame member 1. The connecting portion 52 is made of a flexible material, and by deforming this portion, the cover main body portion 51 can be attached to or removed from the frame member 1. Details of the cover member 5 will be described later.

  FIG. 3 is a sectional view taken along line III-III in FIG. As shown in FIG. 3, each of the side members 1a to 1d forming the frame member 1 integrally includes a side wall 11, a base portion 12, a support portion 13, an outer peripheral end portion 14, and a lid edge support portion 15. Have.

  The side wall 11 is a flat plate-shaped member provided so as to face the edge of the inspection port T1 and is provided over the entire inner edge of the inspection port T1. The side wall 11 includes an outer side wall 11a facing the wall material K, an inner side wall 11b disposed inside the outer side wall 11a and spaced apart substantially in parallel to the outer side wall 11a, and an inner side wall 11a and an outer side wall 11a. And a connecting wall 11c for connecting to.

  Ends of the outer wall 11a and the inner wall 11b on the wall back space S2 side serve as the fitted portion 11d. The fitted portion 11d has a concave groove shape that is open to the back wall space S2 side, and is provided over the entire longitudinal direction of the side members 1a to 1d. The side members 1a to 1d are fixed to the corner connecting members 3a to 3d, respectively, by inserting the below-described fitting portion 33 of the corner connecting member 3 into the fitted portion 11d.

  As shown in FIG. 3, the outer side wall 11a and the inner side wall 11b form an engaged portion 11e closer to the indoor space S1 than the connecting wall 11c. FIG. 4 is a partially enlarged view of the periphery of the engaged portion 11e in FIG. The engaged portion 11e has a concave groove shape that is open to the indoor space S1 side, and is provided over the entire side members 1a to 1d in the longitudinal direction. A hook-shaped portion (projection piece) 11h protruding toward the outer wall 11a is formed at the end of the inner wall 11b forming the engaged portion 11e on the indoor space S1 side. By inserting an engaging portion 53 of the cover member 5 described later into the hook-shaped portion 11h, the engaging portion 53 engages with the engaged portion 11e, and the cover member 5 is fixed to the frame member 1. As shown in FIG. 4, the hook-shaped portion 11h includes an inclined surface 11g whose thickness gradually increases from the tip on the indoor space S1 side toward the back wall space S2 side, and an end of the inclined surface 11g on the wall back space S2 side. There is a step 11i that vertically connects the portion and the inner wall 11b. The inclined surface 11g is inclined at an angle that guides the engaging portion 53 into the engaged portion 11e when the engaging portion 53 contacts. The step 11i prevents the engaging portion 53 from being easily disengaged from the engaged portion 11e by hooking the engaging portion 53.

  Returning to FIG. 3, the base portion 12 is a flat plate-like member extending inward from the end portion of the inner wall 11b on the back wall space S2 side, and the lid member 2 is placed on the back wall space S2 side of the frame member 1. It is provided to prevent it from coming off. The inner end of the base 12 serves as the inner peripheral edge of the frame member 1. The surface of the base portion 12 on the wall back space S2 side abuts a base contact portion 31 of the corner connecting member 3 described later. As shown in FIG. 2, the base portion 12 is formed with an insertion hole 7 into which the shaft portion of the fixing member N such as a screw or a nail is inserted.

  The support portion 13 includes a lid-side extension portion 13a extending from the inner end portion of the base portion 12 at right angles to the indoor space S1 side, and a base-side extension portion extending from the inner end portion of the base portion 12 at right angles to the back wall space S2 side. And a portion 13b. The lid-side extension 13a supports the vicinity of the outer periphery of the lid member 2 from the wall back space S2 side, and the base-side extension 13b contacts the base girder SK with the frame member 1 attached to the inspection port T1. Contact. An end portion of the lid-side extending portion 13a on the indoor space S1 side is substantially flush with a surface of the lid edge support portion 15 to be described later on the indoor space S1 side. The extension length of the base-side extending portion 13b toward the back wall space S2 side is substantially the same as the thickness of the base contact portion 31 of the corner connecting member 3 described later.

  As shown in FIG. 3, the outer peripheral end portion 14 includes an outer extending portion 14a extending outward from an end portion of the outer wall 11a on the indoor space S1 side, and an outer extending portion 14a extending from the outer end portion to a wall space. It has a wall material contact portion 14b extending to the S2 side. The outer extending portion 14a is a portion that comes into contact with an extending contact portion 34 of the corner connecting member 3 described later, and the connecting portion 52 is attached to an end portion of the outer extending portion 14a on the indoor space S1 side. The extension length of the wall material contact portion 14b from the outer extension portion 14a to the back wall space S2 side is substantially the same as the thickness of the extension contact portion 34. The frame member 1 is attached to the inspection port T1 by bringing the end of the wall material contact portion 14b on the back wall space S2 side into contact with the wall material K around the inspection port T1.

  The lid edge support portion 15 is a portion that supports the wall back space S2 side of the lid member 2 together with the tip end portion of the lid side extending portion 13a, and extends inward from the inner side surface of the inner wall 11b. As described above, the lid-side extending portion 13a and the lid-edge supporting portion 15 support the wall back space S2 side of one side of the lid member 2 at two points.

  The cover member 5 has a cover body 51, a connecting portion 52, and an engaging portion 53.

  As shown in FIG. 1, the cover main body portion 51 is a flat plate-shaped member that is provided over the entire lengthwise direction of the side members 1a to 1d and holds the lid member 2 at the peripheral edge of the opening T2 from the indoor space S1 side. As shown in FIG. 4, in the state where the cover member 5 is fixed to the frame member 1 (that is, the engagement portion 53 is engaged with the engaged portion 11e), the inner peripheral edge 51a of the cover main body portion 51 is covered by the lid member 2. By being located inside the outer peripheral edge 2a, the lid member 2 is prevented from coming off to the indoor space side of the frame member 1. The contact piece 6 is attached to the engagement portion 53 side of the inner peripheral edge 51 a of the cover body 51.

  The contact piece 6 contacts the peripheral edge portion of the lid member 2 from the indoor space S1 side in a state where the engaging portion 53 is engaged with the engaged portion 11e, and the tip of the contact piece 6 is the lid member 2. Is projected to the back wall space S2 side so as to contact with. As shown in FIG. 3, the contact piece 6 contacts the indoor space S1 side of the lid member 2 and the lid side extending portion 13a and the lid edge support portion 15 of the frame member 1 side the wall back space S2 side of the lid member 2. The lid member 2 is fixed to the front and rear in the thickness direction by abutting against.

  The contact piece 6 is made of a flexible material, and as shown in FIG. 4, integrally includes an inclined portion 61 and a vertical portion 62. The type of material having flexibility here is not particularly limited, and examples thereof include soft vinyl chloride resin and thermoplastic elastomer. The thickness of the abutting piece 6 is 0 for the purpose of achieving a balance between strength that can prevent the lid member 2 from moving forward and backward and flexibility that can be easily deformed when pushed by a finger. It is set to 0.3 mm or more and 1 mm or less. The mounting position at which the end of the contact piece 6 on the side opposite to the lid member 2 is mounted on the cover member 5 is more engaged than the inner peripheral edge of the cover member 5 in a state where the engaging portion 53 is engaged with the engaged portion 11e. It is the joint portion 53 side.

  The inclined portion 61 is attached to the engagement portion 53 side of the inner peripheral edge 51a of the cover body 51, extends toward the lid member 2 from the attachment position with the cover body 51, and covers the cover member 5 as well. Is inclined toward the inner peripheral edge (inner side). In other words, the inclined portion 61 is inclined obliquely inward from the position where it is attached to the cover body 51. The vertical portion 62 is formed integrally with the inclined portion 61, and extends from the tip of the inclined portion 61 toward the surface of the lid member 2 perpendicularly to the surface of the lid member 2. In the contact piece 6 before being elastically deformed (so-called natural state), the inclined portion 61 and the vertical portion 62 intersect each other at a predetermined angle. The tip of the vertical portion 62 is vertically in contact with the surface of the lid member 2, and as shown in FIG. 4, the inner peripheral edge 51 a of the cover member 5 (cover main body portion 51) and the inner peripheral edge of the vertical portion 62. 62a and the substantially same plane. Here, the intersection angle between the inclined portion 61 and the vertical portion 62 is set to 20 ° or more and 70 ° or less. By using the contact piece 6 having such an intersecting angle, the contact piece 6 is appropriately deformed and contacts the peripheral edge portion of the lid member 2 even if the thickness of the lid member 2 becomes slightly thicker or thinner. ..

  The connecting portion 52 is provided at an outer end portion of the cover main body 51, and connects the cover main body 51 and the outer extending portion 14a. One end of the connecting portion 52 is integrated with the cover body 51, and the other end of the connecting portion 52 is integrated with the outer extending portion 14a. The connecting portion 52 is also made of the same flexible material as the contact piece 6. By deforming the connecting portion 52, the engagement of the engaging portion 53 engaged with the engaged portion 11e can be released.

  The engaging portion 53 is a convex portion that is inserted into the engaged portion 11e of the frame member 1, and is provided over the entire longitudinal direction of the cover body portion 5a. The engaging portion 53 includes a flat plate-shaped neck portion 53a protruding from the surface of the cover body portion 5a that is in contact with the lid member 2, and a thickened portion 53b having a substantially circular cross section integrally provided at the tip of the neck portion 53a. I have it. The neck portion 53a is a flat plate-shaped portion that protrudes from the surface of the cover body portion 5a on the wall back space S2 side and extends over the entire longitudinal direction of the cover body portion 5a. As shown in FIG. 4, the diameter of the thickened portion 53b is slightly smaller than the distance between the outer wall 11a and the inner wall 11b, and the thickness of the neck portion 53a is smaller than the diameter (thickness) of the thickened portion 53b. It is getting smaller. As shown in FIG. 4, in a state where the engagement portion 53 of the cover member 5 is engaged with the engaged portion 11e, the step 11i of the hook-shaped portion 11h causes the boundary portion between the neck portion 53a and the thickened portion 53b ( (Constricted portion).

  Next, the connection of the side members 1a to 1d by the corner connecting members 3a to 3d will be described. FIG. 5 is a perspective view of the corner connecting member, and FIG. 6 is a partially cutaway perspective view of the frame member 1 after the two side members are attached to the corner connecting member. The corner connecting member 3 is for connecting the abutting portions of the side members 1a to 1d as shown in FIG. 6, but is not limited to the connecting function, but is also for reinforcing the connecting portion. As shown, the base contact part 31, the side wall contact part 32, the fitting part 33, and the extension contact part 34 are integrally provided.

  The base contact portion 31 has an L-shaped flat plate shape in a top view, and four welding protrusions 35 are provided in an L shape in the extending directions of the two sides of the L shape. By welding the base parts 12 of the side members 1a and 1d to the two sides of the base contact part 31, respectively, the two side members 1a and 1d are integrated as shown in FIG. The welding here is performed by bringing the base portions 12 of the two side members 1a and 1d into contact with the base contact portion 31 of the corner connecting member 3 and then irradiating ultrasonic waves from the lower side of the base contact portion 31 to make the welding convex. This is done by melting the part 35. After such welding, the welding protrusion 35 is melted and becomes thin, so that it is not impossible to confirm the welding protrusion 35 in the finished product of the frame member 1 as shown in FIG. It will be difficult. This welding method is not limited to the ultrasonic welding described above, and various welding means can be used.

  The surface of the base contact portion 31 on the back wall space S2 side (that is, the lower side surface in FIG. 5) is the end surface on the back wall space S2 side of the four corners of the frame member 1. A side wall contact portion 32 extending toward the indoor space S1 is integrally provided at an outer end of the base contact portion 31. Further, the fitting portion 33 is integrally provided inside the side wall contact portion 32 and spaced apart substantially parallel to the side wall contact portion 32.

  Each base contact portion 31 extending in two directions is provided with a U-shaped notch 7a at each tip. Since the cutout portion 7a is a portion through which the fixing member N passes when the fixing member N such as a screw or a nail is inserted into the insertion hole 7 of the side member 1a to 1d, the above-described side members 1a to 1d. Is provided below the insertion hole 7.

  The side wall contact portion 32 is a flat plate-shaped member that extends from the outer end of the base contact portion 31 toward the indoor space S1 side, and is a portion that contacts the outer side of the side wall 11 of the side members 1a and 1d attached to the corner connecting member 3a. is there. The side wall contact portion 32 extends from the outer end of the base contact portion 31 to the indoor space S1 side by substantially the same length as the length from the end of the outer wall 11a on the indoor space S1 side to the end on the back wall space S2 side. I have put it out. By pressing the outer side surfaces of the outer side walls 11a of the side members 1a and 1d by the side wall contact portions 32, it is possible to prevent the side members 1a and 1d from spreading outward even when a force is applied to the side members 1a and 1d. This prevents the frame member 1 from being deformed.

  The fitting portion 33 is a flat plate-like member that fits into the fitted portion 11d of the side member 1a (between the outer side wall 11a and the inner side wall 11b), and the corner connecting members 3a to 3d and the side members 1a to 1d. It is provided to facilitate the alignment with. The side wall contact part 32 and the fitting part 33 are substantially parallel to each other, and the outer wall 11 a is attached between the side wall contact part 32 and the fitting part 33. Two fitting portions 33 are provided, one for each of the two sides of the L-shape of the base contact portion 31, and the fitted portions 11d of the side members 1a and 1d are fitted to the respective fitting portions 33. To combine.

  As shown in FIG. 5, the fitting portion 33 includes a base wall 32a having a thickness smaller than a gap (distance between the inner wall 11b and the outer wall 11a) of the fitted portion 11d, and a side surface of the base wall 32a. A protrusion 32b that is a part of the protrusion 32b protruding in the thickness direction. Four protrusions 32b are provided in the longitudinal direction of the base wall 32a so as to be separated from each other, and the fitting portion 33 inserted into the fitted portion 11d is unintentionally disengaged from the fitted portion 11d. Prevent it from getting lost.

  The extension contact portion 34 is a portion that extends outward from the end of the side wall contact portion 32 on the indoor space S1 side (upper side in FIG. 5), and is a wall back space of the outer extension portion 14a of the side members 1a to 1d. Contact the S2 side. The outer peripheral portion of the frame member 1 is reinforced by the extension contact portion 34 contacting the outer extension portion 14a. The outer extending portion 14a and the extending contact portion 34 may be welded together with the side members 1a and 1d attached to the corner connecting member 3. The thickness of the extension contact portion 34 is substantially the same as the length of protrusion of the wall material contact portion 14b from the outer extension portion 14a. Therefore, when the side members 1a to 1d are attached to the corner connecting member 3, the surface of the wall member abutting portion 14b on the wall back space S2 side and the extended contact portion 34 form substantially the same plane.

<How to use the inspection port device>
First, as shown in FIG. 7, the frame member 1 in which the engaging portion 53 of the cover member 5 is removed from the engaged portion 11e is inserted into the inspection port T1. At this time, the frame member 1 is inserted to a position where the end portions of the corner connecting member 3 and the support portion 13 on the wall back space S2 side abut the base girder SK. At this time, the end portion of the wall material contact portion 14b on the wall back space S2 side also contacts the wall material K. Then, the frame member 1 is fixed to the base girder SK by inserting a fixing member N such as a screw into the insertion hole 7 of the base portion 12 and screwing it into the base girder SK.

  Next, as shown in FIG. 8, the lid member 2 is inserted into the opening T2 of the frame member 1, and the surface of the lid member 2 on the back wall space S2 side becomes the lid side extending portion 13a and the lid edge supporting portion 15. The lid member 2 is pushed to the abutting position.

  Next, as shown in FIG. 2, by pushing the engaging portion 53 of the cover member 5 into the engaged portion 11e of the side members 1a to 1d, the thickened portion 53b of the engaging portion 53 becomes the hook-shaped portion 11h. Engage. Since the tip of the engaging portion 53 has an arcuate cross section, by pushing the engaging portion 53 into the engaged portion 11e, the thickened portion 53b smoothly slides on the inclined surface 11g and inside the engaged portion 11e. Will be guided to. In the state in which the engagement portion 53 of the cover member 5 is engaged with the engaged portion 11e, the thickened portion 53b is caught by the step 11i, so that the engagement state of the engagement portion 53 is hard to be released and the engagement is locked. It is in a state of being Moreover, since the tip of the contact piece 6 is in contact with the surface of the lid member 2 on the indoor space S1 side, it is possible to prevent the lid member 2 from coming off the frame member 1.

  When the lid member 2 is removed from the frame member 1 to inspect the inside wall space S2, the work may be performed in the reverse order of attaching the lid member 2 to the frame member 1 described above. Specifically, first, in the state shown in FIG. 2, a finger is put in the gap between the cover member 5 and the lid member 2. Since the contact piece 6 located between the cover member 5 and the lid member 2 is made of a flexible material, the contact piece 6 elastically deforms when a finger is put in the gap. It becomes possible to easily insert a finger. Then, by pulling up the finger, the engaged state of the engaging portion 53 by the engaged portion 11e is released, and the engaging portion 53 of the cover member 5 is removed from the frame member 1 as shown in FIG. Then, by pulling the lid member 2 toward the indoor space S1 by holding a handle (not shown) provided on the surface of the lid member 2 on the indoor space S1 side, the lid member 2 is moved to the frame member 1 as shown in FIG. Remove from. In this way, the inside of the back wall space S2 can be inspected from the opening T2 of the frame member 1.

<Effects, etc.>
In the inspection port device 100 of the above-described embodiment, the frame member 1 provided along the edge of the inspection port T1 formed in the wall material K that divides the indoor space S1 and the back wall space S2, and the opening T2 of the frame member 1. And a plate-like lid member 2 attached so as to close the engaging member 53 and an engaging portion 53 that is detachably engaged with the engaged portion 11e formed on the frame member 1. Since the cover member 5 covers the peripheral portion of the lid member 2 held by the frame member 1 from the indoor side in a state of being engaged with the mating portion 11e, the engagement portion 53 of the cover member 5 is formed by the frame member. The cover member 5 can be attached to the frame member 1 by engaging the engaged portion 11e of No. 1 and the peripheral portion of the lid member 2 can be covered from the indoor side by the cover member 5 attached here. This can prevent the lid member 2 from coming off the frame member 1.

  Since the cover member 5 is provided with an abutting piece 6 that abuts the peripheral edge of the lid member 2 from the indoor space S1 side in a state where the engaging portion 53 is engaged with the engaged portion 11e, The lid member 2 is firmly fixed to the frame member 1 by the abutting piece 6 abutting the peripheral edge portion of the lid member 2 from the indoor space S1 side with the engaging portion 53 engaged with the engaging portion 11e. You can

  FIG. 9 is a view corresponding to FIG. 3 when the cover member having a larger thickness in the above embodiment is attached, and FIG. 10 is a view corresponding to FIG. 3 when the wallpaper 21 is attached to the cover member. As shown in FIG. 9, even when the lid member 2'having a slightly thicker thickness is attached to the frame member 1, the wallpaper 21 is attached to the surface of the lid member 2'as shown in FIG. In this case, since the contact piece 6 is made of a flexible material, the contact piece 6 is elastically deformed and presses the peripheral edge of the lid member 2 ′ to move the lid member 2 ′ to the frame member 1. Can be fixed to.

  Moreover, since the contact piece 6 located between the lid member 2'and the cover member 5 is elastically deformed, the gap between the lid member 2'and the cover member 5 is narrowed, so that the lid member 2 ' A step with the cover member 5 can be made difficult to see, and a good appearance can be obtained. In addition, when a finger is inserted into the gap between the cover member 5 and the lid member 2 ', the contact piece 6 is deformed and the finger can be inserted into this gap. By pushing up, it becomes possible to easily release the engagement of the engaging portion 53 engaged with the engaged portion 11e of the frame member 1.

  In the above-described embodiment, the attachment position where the end of the contact piece 6 on the side opposite to the lid member 2'is attached to the cover member 5 is the cover member 5 in a state where the engaging portion 53 is engaged with the engaged portion 11e. Since it is closer to the engaging portion 53 than the inner peripheral edge of, the contact piece 6 is located inside the cover member 5 rather than the end portion of the cover member 5. For this reason, it becomes easy to hook a finger in the gap between the cover member 5 and the lid member 2 ', and the cover member 5 can be easily removed from the frame member 1 by inserting the finger into this gap and pushing up the finger.

  In the above embodiment, the contact piece 6 has a bent shape at the connecting portion between the inclined portion 61 and the vertical portion 62, so that the contact piece 6 is sandwiched between the cover member 5 and the lid member 2 ′. When the contact piece 6 is broken, the contact piece 6 is deformed, and the peripheral edge portion of the lid member 2 ′ can be pressed firmly from the indoor space S1 side. Also, as shown in FIG. 10, when the wallpaper 21 is attached to the lid member 2 ′, the contact piece 6 has the thickness of the wallpaper 21 even when the entire lid member 2 ′ including the wallpaper 21 is thick. It is possible to absorb the thickness error of the wallpaper 21 by deforming only the amount. That is, when the thickness of the wallpaper 21 is thin, the contact piece 6 is hardly elastically deformed, and when the thickness of the wallpaper 21 is thick, the contact piece 6 is largely elastically deformed, so that the wallpaper 21 having different thicknesses can be attached. The contact piece 6 contacts the surface of the wallpaper 21 while absorbing the difference in the thickness of the wallpaper 21. Moreover, since the contact piece 6 is made of a flexible material, when the finger is put in the gap between the cover member 5 and the lid member 2 ', the contact piece 6 is easily deformed, and the contact member 6 of the frame member 1 is deformed. The engagement of the engagement portion 53 engaged with the engaged portion 11e can be easily released.

  In the above embodiment, since the inner peripheral edge 51a of the cover member 5 and the inner peripheral edge 62a of the vertical portion 62 are substantially flush with each other, the engagement portion 53 is in engagement with the engaged portion 11e (that is, The contact piece 6 is hidden by the cover member 5 from the indoor space S1 side in a state where the contact piece 6 presses the peripheral edge of the lid member 2 and becomes invisible. Therefore, it is possible to improve the appearance of the inspection port device 100 from the indoor space S1 side with the lid member 2 attached to the frame member 1.

  In the above embodiment, the engaged portion 11e is a concave portion in which the hook-shaped portion 11h is formed on the inner side wall 11b, the engaging portion 53 is a convex portion in which the thickened portion 53b having a large thickness is formed at the tip, The engaging portion 53 is engaged with the engaged portion 11e by inserting the engaging portion 53 into the engaged portion 11e and allowing the thickened portion 53b to ride over the hook-shaped portion 11h. By lightly pushing the engaging portion 53 into the engaged portion 11e, the thickened portion 53b can ride over the hook-shaped portion 11h and easily engage the convex portion with the concave portion. By lightly pulling the convex portion, the thickened portion 53b rides over the hook-shaped portion 11h in the direction opposite to that when the convex portion is pushed in, and the convex portion can be easily removed from the concave portion. Thus, the engaging portion 53 can be easily engaged with the engaged portion 11e, and the engaged state can be easily released.

  In the above embodiment, the hook-shaped part 11h includes an inclined surface 11g having a thickness that gradually increases from the tip on the indoor space S1 side toward the back wall space S2 side, and an end portion of the inclined surface 11g on the wall back space S2 side. Since the thickened portion 53b has a stepped portion 11i that vertically connects the inner wall 11b and the thickened portion 53b has a substantially circular cross section, when the engaging portion 53 is pushed into the engaged portion 11e, the thickened portion having a substantially circular cross section is formed. 53b slides on the inclined surface 11g of the engaged portion 11e and smoothly operates the thickened portion 53b until it exceeds the step 11i of the engaged portion 11e to engage the engaging portion 53 with the engaged portion 11e. be able to. Moreover, when the engagement portion 53 is engaged, the thickened portion 53b is caught by the step 11i, and thus the engagement state is hard to be released.

  Further, as shown in FIG. 10, even when the engaging portion 53 cannot be completely engaged with the engaged portion 11e due to the thickness of the wallpaper 21, the engaging portion 53 has a curved surface having a substantially circular cross section. Since it can be brought into contact with the tip of the engaged portion 11e, frictional force is exerted between the curved surface of the engaging portion 53 and the tip of the hook-shaped portion 11h of the engaged portion 11e to engage the engaged portion. It is possible to prevent 11e from coming off from the engaging portion 53. Also in this case, since the contact piece 6 can press the peripheral portion of the lid member 2 ′, even if the lid member 2 ′ is slightly thicker or the lid member 2 ′ with the wallpaper 21 attached, the frame member 1 Can be fixed to.

  In the above-described embodiment, since the side members 1a to 1d and the corner connecting members 3a to 3d that configure the frame member 1 are all made of a hard material, the frame member 1 will not be affected even if an external force is applied to the frame member 1. The lid member 2'can be firmly supported with almost no deformation.

  In the above embodiment, since the end portion of the lid-side extending portion 13a on the indoor space S1 side is substantially flush with the surface of the lid edge support portion 15 on the indoor space S1 side, the wall space behind the lid member 2 '. The outer periphery on the S2 side and the region in the vicinity thereof can be supported by the lid-side extending portion 13a and the lid-edge supporting portion 15 at two points. Moreover, the lid member 2 ′ is sandwiched by the lid-side extending portion 13a and the lid edge support portion 15 on the back wall space S2 side of the lid member 2 ′ and the contact piece 6 on the indoor space S1 side of the lid member 2 ′. Thus, it is possible to prevent the lid member 2 ′ attached to the frame member 1 from rattling in the frame member 1.

  In addition, since the extension length of the base-side extending portion 13b toward the back wall space S2 side is substantially the same as the thickness of the base contact portion 31 of the corner connecting member 3, which will be described later, the side members 1a to 1d have the same length. When the corner connecting members 3a to 3d are attached, both the surface of the base contact portion 31 on the back wall space S2 side and the surface of the base-side extending portion 13b on the wall back space S2 side contact the base girder SK. The frame member 1 attached to the base girder SK is easy to stabilize.

  Moreover, the extension length of the wall material contact portion 14b from the outer extension portion 14a to the back wall space S2 side is substantially the same as the thickness of the extension contact portion 34. Since the wall member abutting portion 14b and the extended contact portion 34 both come into contact with the wall material K when the wall member 1 is attached, the frame member 1 attached to the wall material K is easily stabilized.

  Since the cover member 5 is integrated with the side members 1a to 1d via the flexible connecting portion 52, the cover member 5 is connected to the side members 1a to 1d by bending and extending the connecting portion 52. The cover member 5 can be operated with respect to the side members 1a to 1d in the state. That is, since the cover member 5 is not completely separated from the side members 1a to 1d, it is possible to prevent the cover member 5 from being lost when the engaging portion 53 is disengaged.

  In the above embodiment, the hook-shaped part 11h is formed at the tip of the inner wall 11b, but the hook-shaped part 11h may be formed at the tip of the outer wall 11a, or the hook-shaped part 11h may be formed on the inner wall. It may be formed on both 11b and the outer wall 11a. When the hook-shaped portion 11h is formed on the outer wall 11a, the hook-shaped portion 11h projects toward the inner wall 11b.

  In the above-described embodiment, the engaged portion 11e is formed on the side wall 11 and the engaging portion 53 is formed on the cover member 5. However, conversely, the engaged portion 11e is formed on the cover member 5, and the side wall 11 is formed. You may form an engaging part in.

  In the above-described embodiment, the side wall 11 is provided with the outer wall 11a and the inner wall 11b that are spaced apart from each other in parallel, and the substantially central portion thereof is connected by the connecting wall 11c. For example, the outer wall 11a and the inner wall 11b form an integral plate-shaped member, and one recessed groove (engaged part and engaged part and an inner wall space S2 side) of the plate-shaped member, respectively. A fitted part) may be provided.

  In the above-described embodiment, the thickened portion 53b in which the cross-section of the tip of the engaging portion 53 has a substantially circular cross-section has been described, but the thickened portion 53b may have a triangular (arrowhead) cross-sectional shape. Good.

  In the above embodiment, the case where four L-shaped welding protrusions 35 are provided for the base contact portion 31 has been described, but the number of the welding protrusions 35 is not limited to four, and three or less. Or 5 or more.

  Although the case where the wall material K attached to the inspection port device 100 is a side wall has been described in the above embodiment, it may be attached to the inspection port on the ceiling or the inspection port under the floor.

K Wall material N Fixing member S1 Indoor space S2 Back wall space T1 Inspection port T2 Opening 1 Frame member 2 Lid member 3 Corner connecting member 5 Cover member 6 Abutment piece 11 Side wall 11d Fitted part 11e Engaged part 11g Inclined surface 11h Hook (projection piece)
11i Step 21 Wallpaper 31 Base contact part 32 Side wall contact part 33 Fitting part 34 Extending contact part 35 Welding convex part 51 Cover body part 52 Connecting part 53 Engaging part 53a Neck part 53b Thickening part 61 Inclined part 62 Vertical part 62a Edge 100 inspection port device

Claims (4)

A frame member provided along the edge of the inspection port formed in the wall that partitions the indoor space and the space behind the wall,
A plate-shaped lid member attached so as to close the opening of the frame member,
The frame member has an engaging portion that is detachably engaged with the engaged portion formed in the frame member, and is held by the frame member in a state in which the engaging portion engages with the engaged portion. A cover member that covers the peripheral portion of the lid member from the indoor side,
A contact piece that is attached to the cover member, and abuts against the peripheral edge portion of the lid member from the indoor space side in a state where the engaging portion engages with the engaged portion,
The contact piece is made of a flexible material ,
The attachment position at which the end of the contact piece on the side opposite to the lid member is attached to the cover member is more than the inner peripheral edge of the cover member in a state where the engaging portion is engaged with the engaged portion. It is the engaging part side,
The abutting piece is integrally formed with an inclined portion that extends from the attachment position toward the inner peripheral edge of the cover member and is formed along a surface that is non-parallel to a surface that is orthogonal to the surface of the lid member. An inspection port device , which includes a vertical portion that is formed, extends from the tip of the inclined portion toward the surface of the lid member, and is formed along a plane orthogonal to the surface of the lid member . The inspection port device according to claim 1 , wherein an inner peripheral edge of the cover member and an inner peripheral edge of the vertical portion are substantially flush with each other. One of the engaged portion and the engaging portion is a recess in which a projecting piece is formed on the inner wall, and the other of the engaged portion and the engaging portion has a thickened portion with a large thickness at the tip. a formed protrusion, by the increase of the thickness portion by inserting said protruding portion in the recess rides over the protrusion, according to claim 1 or 2 wherein the engaging portion is engaged with the engaged portion Inspection door device described in. The projecting piece has an inclined surface whose thickness gradually increases from the front end on the indoor space side toward the back wall space side, and a step that vertically connects the end portion on the back wall space side of the tilted surface and the inner wall. Have,
The inspection port device according to claim 3 , wherein the thickened portion has a substantially circular cross section.

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