JP2018119349A - Method for assembling peripheral frame of inspection hole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for assembling a peripheral frame of an inspection hole that prevents hands and feet from being caught with a joint portion between frame materials, which facilitates a construction work of a peripheral frame in a construction site.SOLUTION: A method for assembling an outer frame 20 of an inspection hole 10 formed by framing adjacent metal outer frame materials 21 at right angle includes: mounting a resin outer frame corner member 40 on one end 21A of the outer frame material 21; making the outer frame corner member 40 mounted on the one end 21A of the outer frame material 21 and other ends 21B of the outer frame material 21 adjacent to the outer frame material 21 with the outer frame corner member 40 mounted thereon abut each other so that the outer frame corner member 40 becomes a center portion of the corner of the outer frame 20; and caulking a connecting metal fitting 60 mounted between the abutted outer frame materials 21 to join the abutted outer frame materials 21 to each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for assembling a peripheral frame of an inspection port that is formed by orthogonally framing adjacent metal frame members.

  Conventionally, in this type of inspection port, metal frame members are butted together to form a rectangular peripheral frame in plan view, but limbs are in the butted portion of the frame members (joint portion of the frame members). There was a problem of getting caught. Therefore, as shown in Patent Document 1, an inspection port has been developed in which a resin corner member is fitted between metal frame members to form a peripheral frame.

  In the inspection port shown in Patent Document 1, fitting pieces that are orthogonal to each other are provided in the corner member, and the fitting pieces are fitted into the fitting portions provided in the frame member, so that the peripheral frame has a rectangular shape in plan view. Is formed, and sharp edge portions formed at the abutting portions of the frame members can be covered.

JP 2010-116738 A

  However, the inspection port as shown in Patent Document 1 needs to perform the assembly work of the peripheral frame at the construction site, and for a substantially L-shaped corner member in plan view arranged at the corner of the peripheral frame. Because the frame material is fitted, the shape of the peripheral frame formed by fitting the frame materials to the corner member becomes unstable and it is difficult to obtain the diagonal, so the construction of the peripheral frame of the inspection port at the construction site There was a problem that the work was complicated.

  Therefore, the present invention is an inspection port in which limbs are not caught on the joint portion between the frame members, and a method for assembling the peripheral frame of the inspection port capable of easily performing the construction work of the peripheral frame at the construction site The purpose is to provide.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, the method of assembling the peripheral frame of the inspection port according to the present invention is an assembling method of the peripheral frame of the inspection port configured by vertically framing adjacent metal frame members, and one end portion of the frame member A corner member made of resin, and a corner member attached to one end of the frame member such that the corner member is a central portion of the corner of the peripheral frame, and a frame member to which the corner member is attached The butted frame members are joined to each other by joining the other end portions of the adjacent frame members and caulking a connecting fitting attached between the joined frame members.

  In the method described above, the corner member has a fitting portion that fits with one end portion of the frame member on one surface thereof, and the other end portion of the frame member on the other surface. It has an abutting part to abut.

  According to the present invention, in a state in which a resin corner member for covering the joint portion between the frame members is attached to one end portion of the frame member, the other end portion of the frame member adjacent to the frame member is butted and butted. Since the frame members are joined together by caulking the connecting fittings attached between the materials, the shape of the peripheral frame formed by abutting the frame members can be stabilized, and the diagonal of the peripheral frame can be easily Can be put out. For this reason, it is possible to easily perform the construction work of the peripheral frame at the construction site and carry it into the construction site with the peripheral frame assembled.

It is a top view of the inspection port which concerns on this invention. It is a perspective view of the outer frame of the inspection port which concerns on this invention. It is a top view of the outer frame of the inspection port which concerns on this invention. It is a bottom view of the outer frame of the inspection port which concerns on this invention. It is a front view of the outer frame of the inspection port which concerns on this invention. It is an expansion disassembled perspective view of the corner | angular part of the outer frame of the inspection port which concerns on this invention. (A) is a perspective view of the outer frame corner member of the inspection port which concerns on this invention, (b) is a perspective view of the inner frame corner member of the inspection port which concerns on this invention. (A) is an enlarged plan view of the corner of the outer frame of the inspection port according to the present invention, and (b) is an enlarged bottom view of the corner of the outer frame of the inspection port according to the present invention. It is an enlarged plan view of the corner of the inspection port according to the present invention. (A) is an enlarged plan view of a corner portion (a corner portion excluding one outer frame material and an inner frame material) of the inspection port according to the present invention, and (b) is an AA arrow in FIG. 10 (a). FIG.

  First, the inspection port 10 according to the present invention will be described.

  As shown in FIG. 1, the inspection port 10 is provided in an opening provided in a floor or the like (not shown), and is used for inspection of the floor or the like. The inspection port 10 includes a rectangular outer frame 20 (an example of a “circumferential frame”) provided at the opening periphery of an opening such as a floor, and a rectangular inner frame 30 (an “circumferential frame” provided inside the outer frame 20. For example).

  As shown in FIG. 2 to FIG. 6, the outer frame 20 is configured by vertically framing adjacent metal outer frame members 21, and four outer frame members 21 having the same cross section are arranged on four sides. It arrange | positions, and it forms in square shape by joining 21A of one end part of the outer frame material 21, and the other end part 21B of the adjacent outer frame material 21. As shown in FIG. As shown in FIG. 6, the outer frame 20 is composed of an outer frame web plate 22 erected vertically and upper and lower outer frame flange plates 23, 24 provided at the upper and lower ends of the outer frame web plate 22. It is a frame material having a substantially Z-shaped cross section. The upper outer frame flange plate 23 extends from the upper end of the outer frame web plate 22 to the outside of the inspection port 10. The lower outer frame flange plate 24 extends from the lower end of the outer frame web plate 22 to the inside of the inspection port 10. The lower outer frame flange plate 24 has the inner frame 30 mounted on a mounting portion 24a extending in a planar shape inside.

  As shown in FIGS. 1 and 10, the inner frame 30 is configured by vertically framing adjacent metal inner frame members 31, and four inner frame members 31 having the same cross section are arranged on four sides. The other end 31B of the adjacent inner frame member 31 is joined to the other end 31B of the adjacent inner frame member 31 to form a quadrangular shape. The inner frame 30 is substantially U-shaped in cross-sectional view, and is composed of an inner frame web plate 32 erected vertically and upper and lower inner frame flange plates 33 and 34 provided at the upper and lower ends of the inner frame web plate. It is a frame material. The upper inner frame flange plate 33 extends from the upper end of the inner frame web plate 32 to the inside of the inspection port 10. The lower inner frame flange plate 34 extends from the lower end of the inner frame web plate 32 to the inside of the inspection port 10. The lower inner frame flange plate 34 is in contact with a lid member (not shown) that covers the opening of the inspection port 10 at its inner portion.

  The outer frame member 21 and the inner frame member 31 have an angle of 45 degrees at the one end 21A, 31A and the other end 21B, 31B so that the one end 21A, 31A and the other end 21B, 31B are abutted and become a right angle. Disconnected at. As for the outer frame material 21 and the inner frame material 31, the corner members 40 and 50 are attached to one end part 21A and 31A. When the corner members 40 and 50 abut the one end portions 21A and 31A of the outer frame member 21 and the inner frame member 31, and the other end portions 21B and 31B of the adjacent outer frame member 21 and inner frame member 31, It is arranged at the central portion of the corner portion 25 of the outer frame 20 and the corner portion 35 of the inner frame 30.

  As shown in FIGS. 6 to 8, the outer frame corner member 40 attached to one end portion of the outer frame member 21 is formed of a flat plate-like member made of resin and having a substantially Z shape in a side view. The outer frame corner member 40 is a flat plate-like vertical wall 41 erected in the vertical direction, a cover piece 42 that is provided on the upper portion of the vertical wall 41 and that protrudes in the horizontal direction from the upper portion of the vertical wall 41, Consists of

The vertical wall 41 is a portion that is sandwiched between one end 21A of the outer frame member 21 and the other end 21B of the adjacent outer frame member 21 when the outer frame members 21 are framed at right angles. And arranged along the diagonal T of the outer frame 20. The vertical wall 41 has a fitting portion 43 that fits with one end portion 21A of the outer frame member 21 on one surface formed in the vertical direction, and the other end portion 21B of the outer frame member 21 on the other surface. And an abutting portion 44 that abuts against.
The fitting portion 43 is formed so as to protrude in the horizontal direction from the lower portion of the surface on one side of the vertical wall 41 in accordance with the shape of the outer frame web plate 22 of the outer frame material 21, and is fitted to the end portion of the outer frame web plate 22. It is provided as possible. Specifically, the fitting portion 43 is configured such that a portion thereof can sandwich the end portion of the outer frame web plate 22 and the other portion is fitted into a concave groove portion formed in the outer frame web plate 22. Configured to be possible. That is, the fitting part 43 has a pair of protrusions 43 a that protrude so as to sandwich the end of the outer frame web plate 22, and a protrusion 43 b that protrudes so as to fit in the groove portion of the outer frame web plate 22. . By providing the outer frame corner member 40 with the fitting portion 43, the outer frame corner member 40 is attached to the one end portion 21A of the outer frame material 21, and the one end portion 21A of the outer frame material 21 and the adjacent outer frame thereof. The other end 21B of the material 21 can be abutted.
The abutting portion 44 is formed in a flat shape in accordance with the shape of the end surface of the outer frame member 21 so that the end surface on the other end 21B side of the outer frame member 21 can abut.
The vertical wall 41 is formed with a fitting portion 41a on the upper portion thereof, into which a connection fitting 60 described later is fitted. The fitting portion 41a is a groove-shaped portion having a substantially C shape in a side view, and is configured to be able to fit a plate-like connecting metal fitting 60 arranged in the vertical direction.

  When the outer frame members 21 are framed at right angles, the cover piece 42 is a joint portion (edge portion) between one end portion 21A of the outer frame member 21 and the other end portion 21B of the adjacent outer frame member 21. Is disposed along the diagonal T of the outer frame 20. The cover piece 42 is formed in a substantially arrow shape, and one end portion thereof is formed in an acute angle shape, and the other end portion is formed by a concave portion that is recessed in an acute angle shape. The covering piece 42 includes an upper protruding portion 42a protruding in the horizontal direction from the upper portion of the vertical wall 41, and a lower protruding portion 42b provided below the upper protruding portion 42a and protruding in the horizontal direction from the upper portion of the vertical wall 41. Have. The upper protruding portion 42a covers the outer frame flange plate 23 on the one end portion 21A side of the outer frame member 21 and the outer frame flange plate 23 on the other end portion 21B side of the adjacent outer frame member 21 from above. Formed as follows. The upper protruding portion 42a and the lower protruding portion 42b are the outer frame flange plate 23 on the one end portion 21A side of the outer frame member 21 and the outer frame flange plate on the other end portion 21B side of the adjacent outer frame member 21. 23 are formed in parallel in the vertical direction with a predetermined interval therebetween so as to sandwich 23. As described above, when the outer frame flange plate 23 is sandwiched between the upper projecting portion 42a and the lower projecting portion 42b, the edge portions of the outer frame material 21 are not exposed when the outer frame materials 21 are framed at right angles. It becomes.

As shown in FIG. 8, the outer frame corner member 40 is formed in a state in which the vertical wall 41 and the central portion in the longitudinal direction of the cover piece 42 are shifted to one side in a plan view. Specifically, the upper protruding portion 42 a of the covering piece 42 is formed so as to be shifted toward the contact portion 44 side of the vertical wall 41. By configuring the outer frame corner member 40 in this way, when the outer frame members 21 are framed at a right angle, the cover portion 42 is arranged so that the central portion in the longitudinal direction is on the diagonal T of the outer frame 20. The vertical wall 41 is disposed at a position shifted from the diagonal T of the outer frame 20 toward the one end 21 </ b> A of the outer frame member 21. That is, when the outer frame members 21 are framed at right angles, the edge of the other end portion 21B of the outer frame member 21 that contacts the contact portion 44 of the vertical wall 41 is disposed on the diagonal line T of the outer frame 20. In addition, the end edge of the one end 21 </ b> A of the outer frame member 21 that is fitted to the fitting portion 43 of the vertical wall 41 is disposed at a position that is shifted from the diagonal line of the outer frame 20 by the thickness of the vertical wall 41.
Thus, in the outer frame 20, when the outer frame members 21 are framed at right angles, the edge of the one end portion 21 </ b> A of the outer frame member 21 is disposed at a position shifted from the diagonal line T of the outer frame 20. The edge of the other end 21 </ b> B of the adjacent outer frame member 21 is disposed on the diagonal T of the outer frame 20. The vertical wall 41 of the outer frame corner member 40 is disposed in a space that is generated when the one end 21 </ b> A of the outer frame member 21 is displaced from the diagonal line T of the outer frame 20.

  As shown in FIGS. 7B and 9, the inner frame corner member 50 attached to one end of the inner frame member 31 is formed of a flat plate-shaped member made of resin and having a substantially U-shape in side view. The inner frame corner member 50 is a flat plate-like vertical wall 51 erected in the vertical direction, a cover piece 52 provided on the vertical wall 51 and protruding in the horizontal direction from the upper portion of the vertical wall 51, It is comprised from a pair of connection piece 53 which protrudes from the side part of the vertical wall 51 in a horizontal direction.

The vertical wall 51 is a portion that is sandwiched between one end 31A of the inner frame member 31 and the other end 31B of the adjacent inner frame member 31 when the inner frame members 31 are framed at right angles. And arranged along the diagonal T of the inner frame 30. The vertical wall 51 has contact portions 54 that are in contact with the one end portion 31A of the inner frame member 31 and the other end portion 31B of the adjacent inner frame member 31 on both sides formed in the vertical direction.
The abutting portion 54 is flat in accordance with the shape of the end surface of the inner frame member 31 so that the end surface on the one end portion 31A side of the inner frame member 31 and the end surface on the other end portion 31B side of the adjacent inner frame member 31 can abut. It is formed in a shape.

  When the inner frame members 31 are framed at right angles, the covering piece 52 is a joint portion (edge portion) between one end portion 31A of the inner frame member 31 and the other end portion 31B of the adjacent inner frame member 31. Is disposed along the diagonal line T of the inner frame 30. The cover piece 52 is formed in a substantially arrow shape, and one end portion thereof is formed in an acute angle shape, and the other end portion is formed by a concave portion recessed in an acute angle shape. The cover piece 52 has a protruding portion 52 a that protrudes in the horizontal direction from the upper portion of the vertical wall 51. The protruding portion 52a is formed so as to cover the inner frame flange plate 33 on the one end 31A side of the inner frame member 31 and the inner frame flange plate 33 on the other end 31B side of the adjacent inner frame member 31 from above. . In this way, by covering the inner frame flange plate 33 from above by the protruding portion 52a, when the inner frame members 31 are framed at right angles, the edge portion of the inner frame member 31 is not exposed.

  The connecting piece 53 is a part for joining one end portion 31A of the inner frame member 31 and the other end portion 31B of the adjacent inner frame member 31 when the inner frame members 31 are framed at right angles. is there. The connecting piece 53 is a flat plate-like member erected in the vertical direction, and is inclined 45 degrees with respect to the vertical wall 51 and protrudes in the horizontal direction. When the two inner frame members 31 are butted against the inner frame corner member 50, the connecting piece 53 comes into contact with the inner surface of the corner portion 35 of the inner frame 30 formed by the two inner frame members 31 butted. . The connecting piece 53 is provided with a screw hole 53a on the tip side thereof, and is fixed to the two inner frame members 31 by screwing a fixing member such as a screw into the screw hole 53a. That is, the two inner frame members 31 are joined via the connecting piece 53.

As shown in FIG. 9, the inner frame corner member 50 is configured such that the vertical wall 51 and the central portion in the longitudinal direction of the cover piece 52 are on the same straight line in plan view. By configuring the inner frame corner member 50 in this manner, when the inner frame members 31 are framed at right angles, the longitudinal central portions of the vertical wall 51 and the covering piece 52 are on the diagonal line T of the inner frame 30. It is arranged to become. That is, when the outer frame members 21 are framed at right angles, the end edge of one end portion 31A of the inner frame member 31 that contacts the contact portion 54 of the vertical wall 51 and the other end portion of the adjacent inner frame member 31. The edge of 31 </ b> B is arranged at a position shifted from the diagonal T of the inner frame 30 by the thickness of the vertical wall 51.
Thus, in the inner frame 30, when the inner frame members 31 are framed at right angles, the end of the one end portion 31A of the inner frame member 31 and the end of the other end portion 31B of the adjacent inner frame member 31 are used. The edge is disposed at a position shifted from the diagonal line T of the inner frame 30. Then, the vertical wall 51 of the inner frame corner member 50 is formed in a space generated when the one end portion 31A of the inner frame member 31 and the other end portion 31B of the adjacent inner frame member 31 are displaced from the diagonal line T of the inner frame 30. Be placed.

  As shown in FIGS. 1, 9, and 10, the inspection port 10 is configured by fitting an inner frame 30 inside an outer frame 20. Specifically, the inner frame 30 is placed on the outer frame 20 by placing the inner frame flange plate 34 below the inner frame member 31 on the placement portion 24 a of the outer frame flange plate 24 below the outer frame member 21. It is inserted in. At this time, in the inner frame corner member 50, the vertical wall 51 is placed on the upper portion of the vertical wall 41 of the outer frame corner member 40, and one acute end portion of the cover piece 52 is the cover piece 42 of the outer frame corner member 40. The outer frame corner member 40 is fitted into the concave portion of the other end. As a result, the joint portion (edge portion) of the outer frame member 21 and the joint portion (edge portion) of the inner frame member 31 are not exposed by the outer frame corner member 40 and the inner frame corner member 50.

Next, a method for assembling the outer frame 20 of the inspection port 10 will be described.
The outer frame corner member 40 is attached to one end of the four outer frame members 21 constituting the outer frame 20. At this time, one end portion 21 </ b> A of the outer frame member 21 is brought into contact with the outer frame corner member 40 and fitted into the fitting portion 43 of the outer frame corner member 40.

  When the outer frame corner member 40 is attached to the one end portion 21A of the outer frame member 21, the other end portion 21B of the other outer frame member 21 to which the outer frame corner member 40 is similarly attached becomes the contact portion of the outer frame corner member 40. 44. That is, the other end portion 21B of the other outer frame member 21 (the outer frame corner member 40 is not attached) from the side opposite to the side on which the one end portion 21A of the outer frame member 21 is attached (fitted). The outer frame corner member 40 and the other end portion 21B of the other outer frame member 21 are brought into contact with each other by bringing the outer frame corner member 40 into contact with the two outer frame members 21. Hold with. As a result, the two outer frame members 21 are framed at right angles, and the outer frame corner member 40 is disposed at the central portion of the corner portion 25 of the outer frame 20, so that the joint portion (edge) of the two outer frame members 21 is arranged. Cover part) from above. For this reason, the joining portion (edge portion) of the two outer frame members 21 is not exposed.

When the two outer frame members 21 are abutted, the connecting metal fittings 60 are attached between the two abutted outer frame materials 21, and the two outer frame materials 21 are joined by caulking the attached connecting metal fittings 60. To do. Specifically, a metal plate-like connection fitting 60 is fitted to the fitting portions 22a of the two outer frame members 21 that are abutted, and the two connection fittings 60 are caulked to thereby form two outer parts. The frame material 21 is joined. Here, the fitting portion 22 a of the outer frame member 21 is a groove-like portion into which the plate-shaped connecting fitting 60 arranged in the vertical direction can be fitted, and the outer frame member is formed on the outer surface of the outer frame web plate 22. It is formed along the longitudinal direction of 21. In addition, the connecting metal fitting 60 is fitted into the fitting portions 22a of the two outer frame members 21 that are abutted to each other, so that the outer surface of the corner portion 25 of the outer frame 20 that is formed by abutting the two outer frame members 21 together. Are attached so as to cover the outer frame corner member 40 and the two outer frame members 21.
Thus, the shape of the outer frame 20 formed by abutting the outer frame materials 21 can be stabilized by caulking the connecting metal fitting 60 attached between the two abutted outer frame materials 21. And the diagonal of the outer frame 20 can be taken out easily.
By repeating such a joining operation of the outer frame member 21 to the outer frame corner member 40 for the four outer frame members 21, the outer frame 20 having a rectangular shape in plan view is formed.

Next, a method for assembling the inner frame 30 of the inspection port 10 will be described.
The inner frame corner member 50 is attached to the inner frame material 31 constituting the inner frame 30. At this time, by bringing one end portion 31A of the inner frame member 31 and the other end portion 31B of the other adjacent inner frame member 31 into contact with the inner frame corner member 50, the inner frame corner member 50 and the two inner frames 31B The inner frame corner member 50 is sandwiched between the two inner frame members 31. As a result, the two inner frame members 31 are framed at right angles, and the inner frame corner member 50 is arranged at the central portion of the corner portion 35 of the inner frame 30, so that the joint portion (edge) Cover part) from above. For this reason, the joining portion (edge portion) of the two inner frame members 31 is not exposed.

When the two inner frame members 31 are abutted against the inner frame corner member 50, the connecting piece 53 of the inner frame corner member 50 is formed inside the corner portion 35 of the inner frame 30 formed by abutting the two inner frame members 31. It abuts on the side. Then, a fixing member such as a screw is screwed into the screw hole 53 a of the connecting piece 53 in contact with the inner frame member 31, and the connecting piece 53 is fixed to the two inner frame members 31. Thereby, the two inner frame members 31 are joined via the inner frame corner member 50.
By repeating the joining operation of the inner frame member 31 to the inner frame corner member 50 for the four inner frame members 31, the inner frame 30 having a rectangular shape in plan view is formed.

  As described above, in the method of assembling the outer frame 20 of the inspection port 10, the resin-made outer frame corner member 40 for covering the joint portion between the outer frame members 21 is attached to the one end 21 </ b> A of the outer frame member 21. In the (fitted) state, the other end portion 21B of the other outer frame member 21 adjacent to the outer frame member 21 is abutted, and the connecting metal fitting 60 attached between the abutted outer frame members 21 is caulked. Since the frame members 21 are joined together, the shape of the outer frame 20 formed by abutting the outer frame members 21 can be stabilized, and the diagonal of the outer frame 20 can be easily obtained. Therefore, the construction work of the outer frame 20 at the construction site can be easily performed, and the outer frame 20 can be carried into the construction site in an assembled state.

In the present embodiment, the two inner frame members 31 are joined by fixing the connecting piece 53 of the inner frame corner member 50 to the two inner frame members 31 by the fixing member. In the same manner as the outer frame 20, the two inner frame members can be obtained by attaching a metal plate-like connecting bracket 60 between the two inner frame members 31 and caulking the connecting bracket 60. 31 may be joined.
In the present embodiment, both sides of the vertical wall 51 of the inner frame corner member 50 are configured by the contact portions 54, but the present invention is not limited to this, and one side of the vertical wall 51 is connected to the inner frame material 31. And the other side of the vertical wall 51 may be the contact portion 54.

10 Inspection port 20 Outer frame (peripheral frame)
21 Outer frame material (frame material)
21A One end of the outer frame material (one end of the frame material)
21B The other end of the outer frame material (the other end of the frame material)
40 Outer frame corner member (corner member)
60 connecting bracket

Claims (2)

A method for assembling a peripheral frame of an inspection port configured by vertically framing adjacent metal frame members,
A corner member made of resin is attached to one end of the frame material,
A corner member attached to one end of the frame member such that the corner member is a central portion of the corner of the peripheral frame, and the other end of the frame member adjacent to the frame member to which the corner member is attached , Match
A method of assembling a peripheral frame of an inspection port, wherein the butted frame members are joined together by caulking connecting fittings attached between the butted frame members. The corner member is
It has a fitting part that fits with one end of the frame member on the one side surface,
The method for assembling the peripheral frame of the inspection port according to claim 1, further comprising: a contact portion that contacts the other end portion of the frame member on a surface on the other side.

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