JP2001279920A - Cover body for ceiling inspection hole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover body having a cover-plate pushing-mounting structure, by which a holding member is installed by simple works without using a screw when a cover plate is pushed and mounted to an inner frame for the ceiling inspection hole and an execution time and cost of which can be held down. SOLUTION: The cover body A for the ceiling inspection hole is formed in the structure in which a holding member 20 is inserted into an inserting port 13 bored to the main edge section 11 of the inner frame 10 and a holding piece 22 is abutted against the cover plate 5 and pushed and mounted, and the slipping-off preventive piece 23 of the holding member 20 is bent and detaching from the inner frame 10 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid for a ceiling inspection port installed on a ceiling of a building.

[0002]

2. Description of the Related Art In a conventional lid A of a ceiling inspection opening,
As shown in FIG. 7, in order to fix the cover plate 5 fitted in the inner frame 10, a plurality of vertically extending slide holes 9 are formed in the main edge 11 of the inner frame 10, and the screw holes 7 are formed. An abutment member 6 in which an angle is provided is brought into contact with an upper surface of the cover plate 5 fitted in the inner frame 10, and a screw 8 is screwed into a screw hole 7 provided in the holding member 6 from outside the inner frame 10. Structures that are fixed together have been used. However, with such a structure, the inner frame 1
When the cover plate 5 is fixed to 0, the construction time required for the operation of tightening the screw 8 increases, and since it is necessary to perform the thread cutting process on the angle-shaped mounting piece 6, there is a problem that extra cost is required. .

[0003]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is that when a cover plate is formed by fixing a cover plate to an inner frame of a ceiling inspection port, a simple holding member is used without using screws. An object of the present invention is to provide a lid of a ceiling inspection port provided with a lid plate pressing structure that can be attached by work and can reduce construction time and cost.

[0004]

According to the first aspect of the present invention, a cover plate is inserted into an inner frame which is openably and closably mounted on an outer frame, and the inner frame is provided with a cover plate. In a lid of a ceiling inspection opening in which the cover plate is fixed by a holding member attached to a main edge portion, the holding member is a holding member that can be inserted into an insertion hole formed in a main edge portion of the inner frame. And a fixing piece that restricts insertion at the base end of the holding piece, and a retaining piece that can be inserted into the insertion port and bendable, and protrudes from the lower end of the main edge of the inner frame. The upper surface of the lid plate mounted on the mounting rim is pressed with a pressing piece of the pressing member inserted through the insertion port, and the pressing member is bent by the bent stopper piece to form the inner frame. It was configured to be fixed to the main edge.

[0005] With the above structure, the holding member can be attached to a predetermined position simply by inserting the holding piece into the main edge of the inner frame and bending the retaining piece, and without using screws. The lid plate can be pressed with a simple operation. As a preferable aspect of this configuration, as described in claim 2 or 3, a plurality of insertion holes formed in the main edge portion of the inner frame are formed at different heights according to the thickness of the cover plate. It is possible to fine-tune the contact position of the holding piece by inverting the holding member so that the holding position of the holding member can be selected or the holding piece of the holding member is bent upward or downward. I have.

On the other hand, in the invention according to claim 4, a cover plate is fitted into an inner frame which is openably and closably mounted on the outer frame, and the cover plate is attached to the main frame of the inner frame by a pressing member. In the lid of the ceiling inspection port fixed, the pressing member includes a bending piece that can be bent and a retaining piece that can be bent by being inserted into the insertion hole formed in the inner frame. The upper surface of the lid plate mounted on the mounting protrusion protruding from the lower end of the main edge portion of the inner frame is pressed with the pressing piece of the pressing member that is bent, and the pressing member is inserted. Then, it is configured to be fixed to the main edge of the inner frame by the bent stopper pieces.

With the above arrangement, the retaining member is designated simply by inserting the retaining piece into the main edge of the inner frame, bending the retaining member, and bending the retaining member in accordance with the lid plate fitted in the inner frame. The cover plate can be pressed by a simple operation without using screws. As a preferable aspect of this configuration, as described in claim 5 or 6, a plurality of insertion holes formed in the main edge of the inner frame are formed at different heights, and the number of insertion holes is changed according to the thickness of the cover plate. The mounting position can be selected, and by providing multiple notched bent parts on the side of the holding side of the holding member, the force required to bend the holding piece can be reduced. And

[0008]

(First Embodiment) FIGS. 1 to 3
FIG. 1 shows a first embodiment of the present invention. FIG. 1 is a perspective view showing the entirety of a ceiling inspection port according to the present embodiment.
And the cover A are separated from each other. The outer frame 1 is attached to an opening in the ceiling surface by fixing means (not shown) such as hanging metal fittings. The cover body A fits the cover plate 5 into the inner frame 10,
It is formed fixed by the holding member 20. The outer frame 1 and the lid A are detachably mounted on a pair of shafts 2 projecting to a position biased toward one end of the lid A and a pair of bearings 3 of the outer frame 1 corresponding thereto.

Each of the outer frame 1 and the inner frame 10 is made of an extruded aluminum material, and the extruded material is cut into a predetermined length.
It is formed by a connecting tool 4 into a rectangular frame. The shaft 2 protrudes from each of two connecting members 4 on one side of the inner frame 10. The bearing 3 is made of a synthetic resin, is integrally attached to a predetermined position of the outer frame 1 by a suitable fixing means, and engages the shaft 2 of the inner frame 10 rotatably and detachably. When the cover plate 5 is mounted, the inner frame 10 can be separated from the outer frame 1 for work. The lid plate 5 is the same as the ceiling finishing material used for the ceiling surface on which the ceiling inspection opening is installed, which is cut in accordance with the dimensions of the inner frame 10 and has various thicknesses according to the ceiling finishing material. Is used.

FIG. 2 is a perspective view showing the holding member 20 and the inner frame 10. The main frame 11 of the inner frame 10 has a slot 13
Are provided in parallel with each other, and two rows of the insertion ports 13 are provided at appropriate intervals on each side as shown in FIG. Reference numeral 12 denotes a mounting projection of the inner frame 10, on which the cover plate 5 to be fitted is mounted. The pressing member 20 is formed by pressing a thin metal plate, and a pressing piece 22 that can be inserted into the insertion port 13 is bent at a substantially right angle to the fixing piece 21 at the base end. Further, a retaining piece 23 is formed on the pressing piece 22 in the same plane.

The preferred embodiment of the inner frame 10 will be described in more detail.
3 are drilled at the same height on the same side and the opposite side, six at a pitch of 4 mm per row. Then, for the other two opposite sides, six insertion ports 13
Drill by mm. Therefore, an optimum position can be selected at a pitch of 2 mm according to the thickness of the cover plate 5.

The holding member 20 will be described in detail. The fixing piece 21 is formed to be wider than the insertion port 13.
The insertion of the base end of the holding piece 22 is regulated. On the other hand, the retaining piece 23 is formed on the same plane as the retaining piece 22 by cutting out the center of the retaining piece 22 in a substantially U-shape, and the cover plate 5 is pressed by the retaining piece 22. After wearing
As shown in FIG. 3A or 3B, the main edge portion 11 is held between the side piece of the retaining piece 23 and the fixing piece 21 by being bent upward and fixed.

An inclined bent portion 24 is formed at the distal end of the holding piece 22. When the distal end of the bent portion 24 faces downward as shown in FIG. When the cover plate 5 is pressed down by the tip of the cover plate 5 and turned upside down as shown in FIG. 3B, the cover plate 5 is pressed down on the horizontal surface on the base end side of the pressing piece 22. Therefore, fine adjustment according to the thickness of the lid plate 5 is possible by the height of the bent portion 24.

Next, a method of assembling the lid A in the present embodiment will be described. First, the cover plate 5 is fitted into the inner frame 10 and mounted on the mounting rim 12. Next, the pressing piece 22 of the pressing member 20 is inserted from the outside of the inner frame 10 into the insertion opening 13 corresponding to the thickness of the cover plate 5. At this time, the holding piece 22 can be reliably brought into contact with the cover plate 5 by inserting the holding piece 22 either upward or downward according to the thickness of the cover plate 5. Since the retaining piece 23 is inserted inside the inner frame 10 in a state where the fixing piece 21 is inserted until the fixing piece 21 contacts the outside of the main edge portion 11 of the inner frame 10, the retaining piece 23 is moved upward by approximately 90 degrees. It is bent so that the holding member 20 does not separate from the inner frame 10. Retaining piece 2
The operation of bending 3 can be easily performed using a tool such as a screwdriver. Thus, the lid plate 5 is pressed to the inner frame 10.

3 (a) and 3 (b) show a state in which cover plates 5 and 5 'having slightly different plate thicknesses a and b are pressed and fixed by turning the pressing member 20 upside down. FIG.
FIG. 3A illustrates a case where a thin cover plate 5 is used, and FIG. 3B illustrates a case where a thick cover plate 5 ′ is used. As a preferred embodiment, by setting the height difference of the pressing surface by inversion to 1 mm, the pitch (2
mm), commonly used ceiling finishing materials 6 to 27
It is possible to cope with a plate thickness of 1 mm at a pitch of 1 mm.

(Second Embodiment) FIGS. 4 to 6 show a second embodiment of the present invention. FIG. 4 is a perspective view showing the entire ceiling inspection port according to the present embodiment, and includes an outer frame 1 and a lid A.
Are shown in a separated state. The outer frame 1 is attached to an opening in the ceiling surface by fixing means (not shown) such as hanging metal fittings. The cover A is formed by fitting the cover plate 5 into the inner frame 10 and fixing the cover plate 5 with the pressing member 20. The outer frame 1 and the lid A are detachably mounted on a pair of shafts 2 projecting to a position biased toward one end of the lid A and a pair of bearings 3 of the outer frame 1 corresponding thereto.

Each of the outer frame 1 and the inner frame 10 is made of an extruded aluminum material, and the extruded material is cut into a predetermined length.
It is formed by a connecting tool 4 into a rectangular frame. The shaft 2 protrudes from each of two connecting members 4 on one side of the inner frame 10. The bearing 3 is made of a synthetic resin, is integrally attached to a predetermined position of the outer frame 1 by a suitable fixing means, and engages the shaft 2 of the inner frame 10 rotatably and detachably. When the cover plate 5 is mounted, the inner frame 10 can be separated from the outer frame 1 for work. The lid plate 5 is the same as the ceiling finishing material used for the ceiling surface on which the ceiling inspection opening is installed, which is cut in accordance with the dimensions of the inner frame 10 and has various thicknesses according to the ceiling finishing material. Is used.

FIGS. 5A and 5B show the holding member 30.
FIG. Main edge 1 of inner frame 10
1, a plurality of insertion holes 15 are formed in parallel, and a row of the insertion holes 15 is provided two rows at appropriate intervals on the side where the shaft 2 protrudes as shown in FIG. Is provided. Reference numeral 12 denotes a mounting projection of the inner frame 10, on which the cover plate 5 to be fitted is mounted. The holding member 30 is formed by pressing a thin metal plate, and a retaining piece 33 that can be inserted into the insertion port 15 is bent at substantially a right angle to a holding piece 32 that is integrally continuous at the base end. ing.

The preferred embodiment of the inner frame 10 will be described in more detail.
5 are pierced at the same height on the same side and opposite sides by two at a pitch of 10 mm.

The holding member 30 will be described in detail. An outer peripheral piece obtained by cutting a substantially rectangular metal thin plate into a substantially inverted U-shape by pressing is a holding piece 32, and an inner peripheral piece is a retaining piece 33. The pressing piece 32 is formed wider than the insertion opening 15, and regulates the insertion of the base end of the retaining piece 33. The retaining piece 33 is bent at a substantially right angle to the pressing piece 32 at substantially the center, and a notch 35 is further provided near the bent portion to facilitate bending downward.

A notch-shaped bent portion 34 is formed on the side of the holding piece 32, and a force required when bending the holding piece 32 according to the thickness of the cover plate 5 is formed. Is being reduced. In the present embodiment, the lid plate 5 is frequently used as a 9 m which is frequently used as an existing ceiling finishing material.
m and 12 mm thick, the bent portion 34 is 9 mm and 12 m from the lower end of the holding member 30.
By forming the cover plate 5 at the position of m, when using the cover plate 5 having such a thickness, the pressing piece 32 can be easily bent at an optimum position for pressing the cover plate 5.

Next, a method of assembling the lid A according to the present embodiment will be described. First, as shown in FIG. 5A, in a state where the cover plate 5 is not fitted, the retaining piece 33 of the pressing member 30 is inserted into the insertion port 15 formed in the main edge portion 11 from the inside of the inner frame 10. It is inserted and bent downward by using the notch 35. Next, the cover plate 5 is fitted into the inner frame 10 and mounted on the mounting rim 12. When the holding piece 32 is bent inward in this state, the holding piece 32 is bent at a position corresponding to the thickness of the cover plate 5 with the contact portion with the cover plate 5 as a fulcrum, and the cover plate 5 is pressed. I do. When the fixing member 30 is attached, the cover plate 5 is securely pressed by selecting the insertion port 15 corresponding to the thickness of the cover plate 5 and inserting the retaining piece 33 of the holding member 30. be able to. These operations can be performed without using tools or the like. Thus, the lid plate 5 is pressed to the inner frame 10.

FIGS. 6A and 6B show a state in which cover plates 5 and 5 ′ having slightly different plate thicknesses a and b are pressed and fixed by changing the bending position of the holding piece 32. Show. When a thin lid plate 5 is used in FIG.
(B) illustrates a case where a thick lid plate 5 'is used.
As described above, if the thickness of the cover plate 5 capable of bending the holding piece 32 can be bent in a stepless manner, the above-described two insertion holes 15 are formed at a pitch of 10 mm. By doing so, it is possible to cope with a lid plate 5 having a thickness of 6 to 27 mm, which is a commonly used ceiling finishing material, without increasing the size of the pressing member 30.

[0024]

As described above, claim 1 is as follows.
In the invention described, the pressing member is inserted from the insertion hole formed in the inner frame, the pressing piece is brought into contact with the lid plate, and the lid plate is pressed only by bending the retaining piece. Because you can
Work becomes easy, and the time required for construction can be reduced. Also, screws required for conventional holding members,
Since threading of parts is not required, parts costs and processing costs can also be reduced, and overall costs can be reduced.

According to the second aspect of the present invention, since a plurality of insertion holes are formed at appropriate intervals, various cover plates having different thicknesses can be formed by changing the insertion holes for inserting the holding members. Each can be securely pressed.

According to the third aspect of the present invention, by providing the holding portion with a bent portion, it is possible to accommodate two types of plate thicknesses for one insertion port, and to use a plate thickness of a lid plate to be used. This makes it possible to reliably bring the holding piece into contact with the upper portion of the cover plate even when the values are different.

According to the fourth aspect of the present invention, by inserting the holding member through the insertion hole formed in the inner frame, the retaining piece is bent so that the holding member does not fall out of the inner frame. By inserting a lid plate inside the inner frame to which the holding member is attached, placing it on the mounting rim of the inner frame, and bending the holding member at a position that matches the plate thickness ,
Since the lid plate can be pressed, work can be performed without the need for tools, facilitating assembly work at the construction site of the ceiling inspection opening, and shortening the time required for construction. . Further, since screws required for the conventional holding member and screw processing for components are not required, component costs and processing costs can be reduced, and overall cost can be reduced.

According to the fifth aspect of the present invention, since a plurality of insertion holes are formed at appropriate intervals, the insertion hole for inserting the holding member can be provided for the difference in the thickness of the cover plate. This can be dealt with by changing the thickness, and the cover plate having a wide range of thickness can be securely pressed by the same pressing member.

According to the sixth aspect of the present invention, a plurality of notched bent portions are provided on the side of the holding piece, so that the force required when bending the holding piece is reduced. can do.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire ceiling inspection port in a first embodiment of the present invention.

FIG. 2 is a perspective view showing a pressing member and an inner frame according to the first embodiment of the present invention.

FIGS. 3A and 3B are cross-sectional views illustrating a mounting state of a cover plate according to the first embodiment of the present invention. FIG. 3A illustrates a case where the cover plate is thin, and FIG. 3B illustrates a case where the cover plate is thick. Shown respectively.

FIG. 4 is a perspective view showing an entire ceiling inspection port according to a second embodiment of the present invention.

FIGS. 5A and 5B are perspective views of a pressing member and an inner frame according to a second embodiment of the present invention, wherein FIG. 5A shows an exploded state, and FIG.

FIGS. 6A and 6B are cross-sectional views illustrating a mounting state of a cover plate according to a second embodiment of the present invention, wherein FIG. 6A illustrates a state where the cover plate is thin, and FIG. 6B illustrates a state where the cover plate is thick; Shown respectively.

FIG. 7 is a perspective view showing a conventional lid pressing structure of a ceiling inspection opening.

[Explanation of symbols]

 A Lid 1 Outer frame 2 Shaft 3 Bearing 4 Linker 5, 5 'Lid plate 6, 20, 30 Pressing member 7 Screw hole 8 Screw 9 Sliding hole 10 Inner frame 11 Main edge 12 Mounting ridge 13, 15 Insertion port 21 Fixing piece 22, 32 Holding piece 23, 33 Retaining piece 24 Bending part 34 Bending part 35 Notch part

Claims (6)

[Claims] 1. A lid for a ceiling inspection opening in which a lid plate is fitted into an inner frame which can be freely opened and closed to an outer frame, and the lid plate is fixed by a pressing member attached to a main edge portion of the inner frame. A press piece that can be inserted into an insertion hole formed in a main edge of the inner frame; a fixing piece that restricts insertion at a base end of the press piece; The insertion plate is formed of a stopper piece that can be inserted and bent, and the upper surface of a lid plate mounted on a mounting protrusion protruding from a lower end of the main edge of the inner frame is inserted through the insertion port. A lid for a ceiling inspection opening, wherein the lid is pressed with a pressing piece of a pressing member, and the pressing member is fixed to the main edge of the inner frame by a bent retaining piece. 2. A plurality of the insertion ports are formed at different heights of the main edge of the inner frame.
The lid of the ceiling inspection door described. 3. The lid of the ceiling inspection opening according to claim 1, wherein the pressing piece of the pressing member is bent upward or downward at a distal end portion. 4. A lid for a ceiling inspection opening in which a lid plate is fitted into an inner frame which is openably and closably mounted on an outer frame, and the lid plate is fixed by a pressing member mounted on a main edge portion of the inner frame. The pressing member includes a bending pressable piece and a stopper piece that can be inserted into an insertion hole formed in the inner frame and bendable, and protrudes from a lower end of a main edge of the inner frame. The upper surface of the lid plate mounted on the mounting protruding edge to be provided is pressed with the pressing piece of the pressing member to be bent, and the pressing member is inserted by the bent stopper piece by the bent stopper piece. A lid for a ceiling inspection opening fixed to a main edge of an inner frame. 5. A plurality of insertion holes are formed at different heights of the main edge of the inner frame.
The lid of the ceiling inspection door described. 6. The lid for a ceiling inspection opening according to claim 4, wherein a plurality of notched bent portions are provided on a side of the holding piece of the holding member.