JP2986460B1 - Underfloor inspection door - Google Patents

Abstract

An object of the present invention is to make it possible to easily attach a heat insulating material to a lid member at an underfloor inspection port. A joist (2) is located at an opening (4) of an underfloor inspection port (3).
And a plate portion 5 at the lower end of the outer frame 5.
a cover material 9 placed on the inner frame 8 and surrounded by the inner frame 8;
The flange 13a around the upper end is received on the lower plate 8a, and is sandwiched between the lower plate 8a of the inner frame 8 and the lid 9 so that the heat insulating materials 14 and 17 are housed therein. A heat insulating box 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor inspection port formed on a floor of a building for inspecting underfloor.

[0002]

2. Description of the Related Art An underfloor inspection port generally known in the prior art basically has an opening formed in a part of a floor forming material, an outer frame is attached to the opening, and an inner frame received by the outer frame is provided. A lid made of the same material as the floor-forming material is attached to the frame, and the inner frame and the lid are integrally opened and closed with respect to the opening.

[0003]

In such a configuration, when used in a cold region, there is a problem that cool air from under the floor is transmitted to the floor forming material and the lid material, thereby lowering the indoor temperature.

Therefore, in cold regions, a heat insulating material is attached to the lower surface of the floor-forming material, and a heat insulating material is also attached to the lower side of the lid of the underfloor inspection port so as to minimize a decrease in room temperature. It has been done.

[0005]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides an outer frame attached to a joist positioned at an opening of an underfloor inspection port, and an inner frame mounted on a plate at a lower end of the outer frame. A lid material surrounded by a frame, a flange portion around an upper end is received on a plate portion at a lower end of the inner frame, and is sandwiched between a plate portion at a lower end of the inner frame and the lid material, and a heat insulating material is provided inside. It consists of a heat insulating box to be stored, and a receiving beam is attached to the joist so as to protrude toward the opening, and an outer frame is mounted on the receiving beam and attached, between the lower end outer surface of the insulating box and the receiving beam. The gist of the present invention is that the packing is interposed.

An object of the present invention is to solve such a problem, and an object of the present invention is to prevent a heat insulating material from being damaged during handling.

[0007]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides an outer frame attached to a joist positioned at an opening of an underfloor inspection port, and an inner frame mounted on a plate at a lower end of the outer frame. A lid material surrounded by a frame, a flange portion around an upper end is received on a plate portion at a lower end of the inner frame, and is sandwiched between a plate portion at a lower end of the inner frame and the lid material, and a heat insulating material is provided inside. The gist of the present invention consists of a heat insulating box to be stored. Further, according to the present invention, a receiving girder is attached to a joist located at an opening of an underfloor inspection port so as to protrude toward the opening, an outer frame is mounted on the receiving girder, and the lower end outer surface of the heat insulating box and the receiving girder are attached. And a gasket is interposed between them.

[0008] With this configuration, since the heat insulating material is covered with the heat insulating box, it is possible to prevent the heat insulating material from being damaged during handling. In addition, a receiving girder is attached to the joist located at the opening of the underfloor inspection port so as to protrude toward the opening side, and an outer frame is mounted on this receiving girder and attached. When the packing is interposed between the outer frame and the inner frame, it becomes difficult for cold air from under the floor to be transmitted to the outer frame and the inner frame, and the heat insulating effect can be enhanced.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment shown in FIG. 1 will be described. Reference numeral 1 denotes a floor forming material laid in a building, which is received on a joist 2. An underfloor inspection port 3 having a rectangular shape is provided. Underfloor inspection port 3 is floor forming material 1
A bracket 7 in which an outer frame 5 made of aluminum and having a substantially L-shaped cross section is attached to an opening 4 having a rectangular planar shape formed at a predetermined location and a joist 2 located at the opening 4 with screws 6. And a lid 9 made of the same material as the floor-forming material 1 surrounded by an inner frame 8 made of aluminum and having a substantially L-shaped cross section is detachably mounted on the outer frame 5. . More specifically, the outer frame 5 is an inverted L-shaped bracket 7 attached to the joist 2 with screws 6.
Male screw 10 which is received by the horizontal plate portion 7a of the outer frame 5 and protrudes downward from the plate portion 5a at the lower end of the outer frame 5.
a through a hole (not shown) formed in
A nut 11 is screwed into a male screw 10 projecting downward from the bracket 7 and is fixed to the bracket 7. The periphery of the lid member 9 is sandwiched between a plate portion 8a at the lower end of the inner frame 8 and a plate portion 8b at the upper end thereof, and is fixed to the inner frame 8 by screws 12. Further, a slight step 8c is formed at the lower end of the tip of the plate portion 8a at the lower end of the inner frame 8, and this step 8c is formed.
A flange 13a around the upper end of a heat-insulating box 13 made of aluminum or synthetic resin is received on the upper part of the box, and the flange 13a is sandwiched between the step 8c and the lid member 9. A heat insulating material 14 made of styrene foam or the like is provided inside the heat insulating box 13. Also,
At the center inside the heat insulating box 13, a reinforcing member 15 made of aluminum and having a substantially inverted U-shaped cross section is provided, and the upper end of the reinforcing member 15 abuts against the back surface of the lid member 9 so that a screw 16 Has been stopped. The same heat insulating material 17 as the heat insulating material 14 is provided inside the reinforcing material 15.

Further, in FIG. 1, reference numeral 18 denotes the lid 9
The cover member 9 is fitted into a concave portion (not shown) formed in
The handle 18 protrudes from the back side of the cover member 9, and the heat insulating material 14 is cut out at the position of the protruding portion of the handle 18, and the cut-out portion 19
The protrusion 18 of the handle 18 is configured to fit into the handle. Reference numeral 20 denotes a packing provided on the outer frame 5 so that the lower end corner of the inner frame 8 comes into contact when the inner frame 8 is placed on the plate 5a at the lower end of the outer frame 5. Although not shown in the drawings, a heat insulating material such as styrene foam is attached to the back surface of the floor forming material 1.

In the above configuration, the lid 9 for the inner frame 8
To install the heat insulating box 13 and the heat insulating materials 14 and 17, first, the handle 18 is attached to the cover material 9, the reinforcing material 15 is fixed with screws 16, and the heat insulating materials 14 and 17 are set inside the heat insulating box 13. 9 is set in the inner frame 8 with the heat insulating box 13 applied thereto. When the lid 9 and the heat insulating box 13 are set in the inner frame 8, the lid 9
Is sandwiched between the lower end plate portion 8a and the upper end plate portion 8b of the inner frame 8, so that one side of the lid member 9 of the inner frame member surrounding the four sides around the lid member 9 An opening is formed by removing only the corresponding inner frame material, and from this portion the lid 9 and the heat insulating box 13 are integrally inserted into the inner frame 8 from the side, and the removed inner frame is The opening is closed, and finally the lid 9 is fixed to the inner frame 8 with screws 12. When the heat insulating box 13 is applied to the cover 9, the reinforcing material 15 fixed to the back surface of the cover 9 by a screw 16 reinforces the heat insulating material 17 previously stored inside the heat insulating box 13. The material 15 comes to cover. As described above, the lid 9, the heat insulating box 13, and the heat insulating materials 14 and 17 are attached to the inner frame 8.

Next, a second embodiment shown in FIG. 2 will be described. In the second embodiment, the receiving beam 2 is projected from the joist 2 located at the opening 4 so as to project toward the opening 4.
1 is mounted by hitting a nail 22, the lower plate 5 a of the outer frame 5 is placed on the receiving bar 21, and the lower plate 5 a is mounted on the receiving bar 21 with screws 23. , The lower surface of the heat insulating box 13 and the receiving bar 2
A packing 24 is interposed between the outer frame 5 and the inner frame 8 so that cold air from under the floor is hardly transmitted to the outer frame 5 and the inner frame 8. The other configuration is the same as that of the first embodiment, and the description is omitted.

[0013]

As described above, according to the present invention, since the heat insulating material is covered with the heat insulating box, it is possible to prevent the heat insulating material from being damaged during handling. In addition, a receiving girder is attached to the joist located at the opening of the underfloor inspection port so as to protrude toward the opening side, and an outer frame is mounted on this receiving girder and attached. When the packing is interposed between the outer frame and the inner frame, it becomes difficult for cold air from under the floor to be transmitted to the outer frame and the inner frame, and the heat insulating effect can be enhanced.

[Brief description of the drawings]

FIG. 1 is a sectional view of an underfloor inspection port according to a first embodiment of the present invention.

FIG. 2 is a sectional view of an underfloor inspection port according to a second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 floor forming material 2 joist 3 underfloor inspection port 4 opening 5 outer frame 5a plate 6 screw 7 bracket 7a plate 8 inner frame 8a lower plate 8b upper plate 8c step 9 lid material 10 male screw 11 nut 12 screw DESCRIPTION OF SYMBOLS 13 Insulation box 13a Flange part 14 Insulation material 15 Reinforcement material 16 Screw 17 Insulation material 21 Receiving bar 22 Nail 23 Screw 24 Packing

────────────────────────────────────────────────── ─── Continued on the front page (56) References JP-A-10-169177 (JP, A) JP-A 1-152928 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04F 19/08 101 E04F 19/08 103

Claims (1)

(57) [Claims] 1. An outer frame attached to a joist positioned at an opening of an underfloor inspection port, a lid material placed on a plate at a lower end of the outer frame and surrounded by an inner frame, and a plate at a lower end of the inner frame. parts on Ri Do and a heat insulating box heat insulating material is housed in the pinched between the plate portion of the lower end of the inner frame being received is a flange portion of the upper periphery and said lid member, the opening in the joists Protruding to the side
And attach the outer frame on top of this
Attach, install between the outer surface of the lower end of the insulation box and the receiving bar.
Underfloor inspection port, wherein Rukoto such with intervening Kkin.