JP2018016936A - Floor inspection port - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor inspection port that enables a packing to be fitted readily and held firmly, and enhances waterproofing and deodorizing functions.SOLUTION: A floor inspection port includes an outer frame 10 fitted in an opening part 2 of a floor part 1, a cover body 30 having an inner frame 20 fitted on a peripheral edge, the inner frame being fitted detachably inside the outer frame, and a packing material 40 fitted on a cover body receiving part 12 provided on the outer frame and press-contacting the cover body. The cover body receiving part comprises a horizontal piece 15 extending at a bottom edge of a vertical wall 11 of the outer frame, a vertical piece 16 rising from an inner edge of the horizontal piece 15, and an upper horizontal piece 17 extending at a top edge of the vertical piece. The vertical wall, the horizontal piece, the vertical piece and the upper horizontal piece form a packing fitting part 19 that opens upward. The packing material is formed to be elastic and endless, with a stepped cross-section and a cut-out corner part. A protrusion 41 of the packing material is brought in contact with an undersurface side of the upper horizontal piece, while the other protrusion 42 is held in an engaged state with a top edge protruding outward than the upper horizontal piece.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a floor inspection port, and more particularly, to a floor inspection port having a waterproof and deodorizing function.

  Conventionally, as a waterproof / odor-proof floor inspection port, an outer frame attached to a substantially rectangular opening such as a square or a rectangle provided on the floor, and a peripheral edge of a lid that is detachably fitted in the outer frame There is known a floor inspection port having a structure in which the inner frame is fixed by a fixing means such as a fixing screw through a packing held by the outer frame (for example, see Patent Document 1).

  In the floor inspection port described in Patent Document 1, a horizontal plate portion extending inwardly at the lower end of the rising plate portion of the outer frame, a plate portion rising from the inner end portion of the horizontal plate portion, A packing having a rectangular cross section is housed and held in a recess formed by an upper plate extending outward from the upper end. In this case, the upper flat surface of the packing is held in a state of protruding upward from the recess.

Japanese Patent No. 5623057 (paragraph 0011, FIG. 2)

  However, in the floor inspection port described in Patent Document 1, since the packing is held in a state where a gap is left in the recess, the holding is not sufficient, and there is a concern that the airtightness is impaired due to falling.

  In order to hold the packing sufficiently, a method of sticking the packing to the bottom of the recess using double-sided tape can be considered, but sticking double-sided tape requires great care, and once it is pasted, it is difficult to remove it Therefore, there is a problem that the work is troublesome. Further, when the double-sided tape is applied, the packing is fixed in the recess and the length does not change. Therefore, it is necessary to connect straight objects shorter than one side of the inspection port, and there is a problem that workability is poor.

  The present invention was made in view of the above circumstances, and it is an object to provide a floor inspection port that can facilitate the attachment of the packing and can strengthen the holding and can improve the waterproof and deodorizing function. To do.

  In order to solve the above-described problems, the present invention provides an outer frame that is attached to a substantially rectangular opening provided in a floor, an inner frame that is detachably fitted into the outer frame, and the inner frame that has a peripheral edge. A floor inspection port comprising: a lid body to be attached to; and a packing material that is attached to a lid body receiving portion extending inwardly from a lower end of the outer frame, and is in pressure contact with an outer periphery of a lower surface of the lid body, The lid receiving portion includes a horizontal piece extending inward from the lower end of the vertical wall of the outer frame, a vertical piece standing vertically from an inner end of the horizontal piece, and an upper end of the vertical piece. A packing mounting portion is formed of an upper horizontal piece extending outward, and the upper portion is formed by the vertical wall, the horizontal piece, the vertical piece, and the upper horizontal piece, and the packing material has an elastic corner. It is formed in a stepped cross-sectional shape, and is formed in an endless shape. One protrusion of the packing material is in contact with the lower surface side of the upper horizontal piece, and the upper end of the other protrusion is held in an engaged state protruding from the upper horizontal piece. ).

  By configuring in this way, one protrusion of the packing material formed into a stepped cross section with a corner portion cut out is inserted into the opening of the packing mounting portion, and the vertical wall of the outer frame and the packing material are in contact with each other. By pushing the part, one protrusion can be in contact with the lower surface side of the upper horizontal piece, and the upper end of the other protrusion can be held in an engaged state protruding from the upper horizontal piece.

  In the present invention, the packing material may be solid, but may be formed in a hollow shape having a longitudinal hollow portion. By comprising in this way, elasticity can be given to packing material further.

  Moreover, in this invention, it is preferable that the said packing material is formed with a sponge rubber shape material, and the skin layer is formed in the surface (Claim 3).

  By comprising in this way, since a cut surface does not appear on the surface of a packing material and the surface becomes a smooth state without a dent, the adhesiveness of the state press-contacted to the cover body can be made favorable.

  According to this invention, since it is configured as described above, the following excellent effects can be obtained.

  (1) According to the first aspect of the present invention, one protrusion of the packing material formed in a stepped cross section with a corner portion cut out is in contact with the lower surface side of the upper horizontal piece of the packing mounting portion, and the other Since the upper end of the protrusion can be held in an engaged state protruding from the upper horizontal piece, the packing can be easily attached and the holding can be strengthened, and the waterproof and deodorizing functions can be improved. .

  (2) According to the invention described in claim 2, since the packing material can be further elastic, in addition to the above (1), the mounting can be further facilitated.

  (3) According to the invention described in claim 3, since the adhesiveness in a state of being pressed against the lid can be improved, in addition to the above (1) and (2), further waterproof and deodorizing function In addition, the wear resistance and the life can be increased.

It is sectional drawing which shows the use condition of the floor inspection opening which concerns on this invention. It is sectional drawing which shows the principal part of the floor inspection opening which concerns on this invention. It is a disassembled sectional view which shows the principal part of the floor inspection opening which concerns on this invention. It is an expanded sectional view which shows the attachment state of the packing material in this invention. It is an expanded sectional view which shows another shape of the packing material in this invention. It is a disassembled perspective view which shows the outer frame, inner frame, and packing material in this invention. It is a cross-sectional perspective view which shows the state which attached the packing material to the said outer frame. It is a schematic sectional drawing which shows the state which attaches the packing material in this invention to an outer frame.

  Hereinafter, an embodiment of a floor inspection port according to the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIGS. 1 and 2, the floor inspection port according to the present invention includes an outer frame 10 attached in an opening 2 having a substantially square shape (specifically, a square) provided in the floor 1, and The inner frame 20 is detachably fitted into the outer frame 10, the lid 30 is attached to the periphery of the inner frame 20, and the lid receiving portion 12 extending inward from the lower end of the outer frame 10, And a packing material 40 that is pressed against the outer periphery of the lower surface of the lid 30.

  The floor portion 1 has a floor surface formed by affixing floor tiles 4 to the surface of a mortar 3, and an outer frame 10 is attached by an anchor 6 connected to an incisor 5 embedded in the mortar 4. It has been.

  The outer frame 10 is formed of, for example, a stainless steel member having a substantially square shape (specifically, a square shape) in plan view, and a lid on the inner side of the lower end of the vertical wall 11 constituting the base of the outer frame 10. A body receiving part 12 is provided. Further, screw receiving portions 14 having screw holes 13 are provided inside the four corners of the lower end portion of the outer frame 10.

  The lid receiving portion 12 includes a horizontal piece 15 extending inward from the lower end of the vertical wall 11, a vertical piece 16 standing upright from the inner end of the horizontal piece 15, and an outer side from the upper end of the vertical piece 16. A packing mounting portion 19 is formed by an upper horizontal piece 17 extending in the direction, and the vertical wall 11, the horizontal piece 15, the vertical piece 16, and the upper horizontal piece 17 have an opening 18 on the upper side.

  In this case, the opening dimension of the opening 18 is formed to be the same or slightly wider than the dimension between the horizontal piece 15 and the upper horizontal piece 17.

  The inner frame 20 is formed in a substantially square shape (specifically, a square shape) in plan view with, for example, a stainless steel member. Further, it is formed in a box shape by a stainless steel bottom plate 22 connected to the lower end of the vertical wall 21 constituting the base portion of the inner frame 20, and fixing screws 50 are screwed into the four corners inside the upper end portion of the inner frame 20. A fixing screw mounting portion 24 having an insertion screw hole 23 inserted therewith is provided.

  In this case, as shown in FIG. 2 and FIG. 3, the fixing screw mounting portion 24 includes a plate-like base portion 26 having a circular concave portion 25 provided with an insertion screw hole 23 in the bottom portion, a lower surface of the circular concave portion 25, and the bottom plate 22. It is comprised with the guide cylinder part 27 arrange | positioned and fixed between the upper surfaces. The guide tube portion 27 communicates with the insertion screw hole 23 and a lower insertion hole 22 a provided in the bottom plate 22.

  The lid body 30 is formed by a mortar 31 filled in a space portion excluding the guide cylinder portion 27 between the inner frame 20 and the bottom plate 22, and a tile 32 stuck on the surface of the mortar 31.

  As shown in FIGS. 2 and 3, the fixing screw 50 is provided with a male screw portion 51 that is screwed into the insertion screw hole 23 of the fixing screw mounting portion 24 and the screw hole 13 of the screw receiving portion 14 at the distal end portion. The plate-shaped head 52 accommodated in the circular recessed part 25 is provided in the part. The fixing screw 50 formed in this way is screwed into the screw hole 13 of the screw receiving portion 14 via the ring-shaped packing 53 disposed in the circular concave portion 25, so that the airtightness of the fixing screw 50 portion is improved. To be maintained.

  Next, the packing material 40 will be described. The packing material 40 is formed of an extruded product of sponge rubber having a stepped cross section with corners cut away, for example, silicon sponge rubber having good chemical resistance, and both end portions in the longitudinal direction are formed. It is formed in an endless shape (annular shape) bonded via a silicon sealant. The packing material 40 has a hardness of about 25 ° so that the silicon is compressed to obtain a water stop effect.

  In this case, the packing material 40 is formed in an L-shaped cross-section by cutting out one corner of a square cross section at a right angle, and one L-shaped projection 41 (hereinafter referred to as a first projection). The width dimension of the other L-shaped protrusion 42 (hereinafter referred to as the second protrusion 42) is formed to be the same.

  As shown in FIG. 4, the packing material 40 formed by the extrusion-molded product in this way has a skin layer 40 a formed on the surface, so that a cut surface does not appear on the surface of the packing material 40, and the surface is depressed. There will be no smooth state. Therefore, the entire surface of the packing material 40 becomes a skin layer 40a having a water repellent effect.

  In addition, although FIG. 4 demonstrated the case where the packing material 40 was solid, for example, as shown to Fig.5 (a), it is a circular shape with a long through at the center part of the corner | angular part facing a notched corner | angular part The hollow packing material 40A having the hollow portion 43a may be used, or as shown in FIG. 5B, the hollow packing material 40B having the L-shaped hollow portion 43b may be used. The shape of the hollow portion is not limited to a circular shape or an L shape, and may be other shapes.

  In order to attach the packing material 40 to the packing attaching part 19, it carries out in the following procedures. First, as shown in FIG. 8A, one of the L-shaped first protrusions 41 of the packing material 40 is made to have the same or slightly wider dimensions as the width dimensions of the first and second protrusions 41 and 42. It inserts in the opening 18 of the formed packing mounting part 19. At this time, the packing material 40 is inserted obliquely from above.

  Next, as shown in FIG. 8 (b), a pressing plate 60 such as a thin plate-like spatula or ruler is inserted into the contact portion from above the contact portion between the vertical wall 11 of the outer frame 10 and the packing material 40, and the packing material. The first protrusion 41 is brought into contact with the lower surface side of the upper horizontal piece 17 while elastically deforming 40, and the upper end of the other L-shaped second protrusion 42 protrudes from the upper horizontal piece 17. Hold. In this manner, the packing material 40 can be fitted into the packing mounting portion 19 provided on the four circumferences of the outer frame 10.

  In addition, when the dimension between the horizontal piece 15 of the packing attachment part 19 and the upper horizontal piece 17 is narrower than the width dimension of the 1st protrusion 41 of the packing material 40, the packing material 40 is in a state where it is slightly crushed. Therefore, the engagement state can be kept good.

  In addition, although the said embodiment demonstrated the case where the packing material 40 in this invention was formed in cross-sectional L shape, if the cross-section by which the corner part was notched is stepped, it will be in another shape. There may be.

  According to the floor inspection port of the embodiment configured as described above, the packing materials 40, 40A, and 40B can be easily attached and the holding can be strengthened. Further, since the packing materials 40, 40A and 40B are attached in a stable state without falling down, the inner frame 20 and the lid body 30 are fitted into the outer frame 10 and fixed with the fixing screws 50. Since the flat surface of the second protrusion 42 of the packing materials 40, 40 </ b> A, 40 </ b> B is in pressure contact with the bottom of the lid body 30, the waterproof / deodorant function can be improved.

  In addition, when the hollow packing materials 40A and 40B are used, the packing materials 40A and 40B can be given more elasticity, so that the mounting can be further facilitated.

  Moreover, since the skin layer 40a is formed on the surface by forming the packing materials 40, 40A, and 40B by an extruded product of silicon sponge rubber, a cut surface appears on the surface of the packing materials 40, 40A, and 40B. In other words, the surface is smooth without any depressions. Therefore, since the adhesiveness in a state of being pressed against the lid body 30 can be improved, the waterproof and deodorizing functions can be further improved, and the wear resistance can be improved and the life can be increased.

DESCRIPTION OF SYMBOLS 1 Floor part 2 Opening part 10 Outer frame 11 Vertical wall 12 Lid body receiving part 15 Horizontal piece 16 Vertical piece 17 Upper horizontal piece 18 Opening 19 Packing attachment part 20 Inner frame 30 Lid 40, 40A, 40B Packing material 40a Skin layer 41 First protrusion (one L-shaped protrusion)
42 2nd protrusion (L-shaped other protrusion)
43a Circular hollow part 43b L-shaped hollow part

Claims (3)

An outer frame that is attached to a substantially rectangular opening provided in the floor, an inner frame that is detachably fitted in the outer frame, a lid that is attached to the periphery of the inner frame, and the outer frame A floor inspection port comprising a packing material attached to a lid receiving portion extending inwardly from a lower end and in pressure contact with the outer periphery of the lower surface of the lid,
The lid receiving portion includes a horizontal piece extending inward from the lower end of the vertical wall of the outer frame, a vertical piece standing vertically from an inner end of the horizontal piece, and an upper end of the vertical piece. A packing mounting portion formed of an upper horizontal piece extending outward and having an upper opening formed by the vertical wall, the horizontal piece, the vertical piece, and the upper horizontal piece;
The packing material is formed in an endless shape with a cross-sectional step shape with a cut corner having elasticity,
The packing material is held in an engaged state in which one protrusion of the packing material is in contact with the lower surface side of the upper horizontal piece and the upper end of the other protrusion protrudes from the upper horizontal piece.
A floor inspection opening characterized by that. In the floor inspection opening according to claim 1,
The floor inspection port according to claim 1, wherein the packing material is formed in a hollow shape having a longitudinal hollow portion. In the floor inspection opening according to claim 1 or 2,
The floor inspection port according to claim 1, wherein the packing material is formed of a sponge rubber shape, and a skin layer is formed on the surface.

Images