JPS6232308B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting structure for a floor inspection port installed on a floor and used for inspecting various types of wiring, piping, etc. arranged under the floor.

Conventionally, when installing a floor inspection port on a floor surface formed by laying floor finishing material over the subfloor material, a floor opening is drilled in the floor and the material is fixed to the subfloor material within this floor opening. The outer frame body is fitted and supported using a support member that is attached to the outer frame body.

However, in such conventional devices, in order to keep the floor surface, that is, the surface of the floor finishing material, and the top surface of the floor inspection opening on the same plane, it is necessary to fix the support member accurately at the fixed position. In addition, simply fixing the support member to the subfloor material will reduce the strength and rigidity of the floor surface caused by opening the floor opening, especially around the periphery of the floor opening. It had a drawback that it could not be compensated for sufficiently.

On the other hand, in order to deal with this problem, it has been proposed that the frame is supported by support rods set up on the ground so that its vertical dimensions can be adjusted, making it easier to level the frame (although this has not been implemented in practice). (Refer to Japanese Patent Publication No. 110659/1982), this structure is such that only the frame is supported from below by the support rods, which simplifies the installation work, but the openings are formed and the strength is reduced. It is not possible to strengthen even the weakened floor,
If the floor section were to be reinforced, it would be necessary to separately provide a reinforcing material, which had the drawback of increasing the number of installation steps as a whole.

The present invention has been made in response to these circumstances, and allows the installation height to be easily changed even after the installation of the floor inspection port.
It is an object of the present invention to provide a mounting structure for a floor inspection port that can simplify installation work and at the same time reinforce and stiffen a floor opening.

Hereinafter, the present invention will be explained with reference to FIGS. 1 and 2, which correspond to embodiments. In the figures, 2 indicates a floor opening opened in the floor 1, and the floor inspection opening is located at the opening edge of this floor opening 2. 3, and an inner frame 6 which is fitted into the outer frame 5 so as to be openable and closable.

At the lower end of the outer periphery of the outer frame 5 of this floor inspection opening, a holding seat 19 is supported by the upper end of an adjustment bolt 11, which will be described later, to hold the outer frame 5 at an appropriate height.
is provided.

On the other hand, a support device 4 is fixed to the lower surface of the floor at the opening edge 3 of the floor opening 2.

This support device 4 is constructed by protruding support seats 10 at positions corresponding to the holding seats 19 provided on the outer frame 5, and includes support rods 8 erected on the ground.
It is supported by the support rod 8 by being fixed to the upper end of the support rod 8.

An adjustment bolt 11 is interposed between the holding seat 19 of the outer frame 5 and the support seat 10 of the support device 4, and is operable when the inner frame body 6 is in the open state.

That is, in the present invention, the holding seat 19 of the outer frame 5 and the support seat 10 of the supporting device 4 are provided facing each other.
By interposing an adjustment bolt 11 that can be operated when the inner frame body 6 is open, even after the inspection port is installed, if the inner frame body 6 is opened and the adjustment bolt 11 is operated, The installation height can be easily changed, and the floor part at the opening edge 2 of the floor opening 3 is supported by the support rod 8, thereby reinforcing or stiffening the part. be.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 3, a floor inspection port installed using a floor inspection port mounting structure according to a first embodiment of the present invention is shown.

This embodiment shows a case where an inspection port is installed in a floor 1 made up of a subfloor material 27 and a finishing material 28, and the support device 4 has a support member 7 having a substantially cross-sectional shape of a hat, framed in a rectangular shape. It is attached to the lower surface side of the opening edge 3 of the floor opening 2 by means such as a fastener, and is supported from below by a support rod 8 having threaded portions at both ends. This support device 4 is provided with a flat plate-shaped support seat 10 having a screw hole 9 in its inwardly protruding portion, and an adjustment bolt 11 is screwed into the screw hole 9 of this support seat 10. are doing.

Further, the outer frame body 5 includes an outer frame piece 1 having a substantially L-shaped cross section and having an inner frame support portion 12 having an inwardly projecting edge shape at the lower end.
3 is formed into a rectangular frame, and a groove 14 is formed on the upper surface side of the inner frame support part 12 along the longitudinal direction of the root side, and an elastic buffer is formed along the longitudinal direction of the distal end side of the inner frame support part 12. A dovetail groove 16 into which the body 15 is fitted is formed. Further, a fitting groove 17 is formed along the longitudinal direction on the lower surface side of the inner frame support part 12 at a position below the groove 14.
A holding seat 19 having a through hole 18 is fitted into the inside of the holding seat 19 , and a through hole 20 concentric with the through hole 18 is formed in a partition wall separating the groove 14 and the fitting groove 17 . A nut 21 located in the groove 14 is screwed onto the upper end of the adjusting bolt 11 which is drilled and rotatably passes through each of the through holes 18, 20. This adjustment bolt 11 is attached to this nut 21.
The adjustment bolt 11 is rotatably attached to the inner frame support 12 by a screw, and a groove (not shown) is formed at the upper end of the adjustment bolt 11, and a screwdriver or the like can be inserted into this groove. The adjustment bolt 11 is rotated.

In this embodiment, the inner frame body 6 includes an inner frame piece 22 having a substantially L-shaped cross section, and a support piece 23 fixed to the inner surface of the inner frame piece 22 so as to be vertically adjustable.
and a support piece 23 provided at the tip of the inner frame piece 22.
Adjustment screw 24 for adjusting the vertical position of
and a lid 26 provided on the upper surface of the support piece 23 with a bottom plate 25 interposed therebetween. In addition, the reference numeral 27 in the figure is a subfloor material constituting the floor 1, and a floor finishing material 28 is laid on the upper surface thereof.

Therefore, according to the floor inspection port of this first embodiment,
When it is necessary to adjust the vertical position of the outer frame 5 supported by the support device 4 provided on the lower surface side of the opening edge 3 of the floor opening 2, the inner frame 6 can be removed. The adjustment bolt 11 can be rotated using a screwdriver or the like, and can be operated from above the outer frame 5.

FIG. 4 shows a modification of the first embodiment, in which the inwardly projecting portion of the support member 7 constituting the support device 4 is used as the support seat 10 and the through hole 2 is used as the support seat 10.
9 is bored and the support seat 1 is screwed into the through hole 29 with a pair of nuts 34 which are screwed onto the adjusting bolt 11 which is loosely fitted into the through hole 29.
It is fixed by inserting 0,
By operating these pair of nuts 34, the adjustment bolt 11 can be moved up and down, and the vertical position of the outer frame 5 can be adjusted.

Next, the floor inspection port of the second embodiment shown in FIG.
Unlike the case of the first embodiment, the support member 7 of the support device 4 is formed with a support portion 30 having a substantially U-shaped cross section. A locking protrusion 32 is provided that protrudes from the top and forms a locking groove 31, and the support seat 10 provided on the support device 4 is formed with a substantially inverted U-shape in cross section, and the lower ends of both walls thereof are provided with locking protrusions 32 facing in opposite directions. The adjustment bolt 11 is screwed into the screw hole 9 of the holding seat 19 fitted in the fitting groove 17 on the lower surface side of the inner frame support part 12 of the outer frame body 5. , the lower end of this adjustment bolt 11 is connected to the support seat 1
The adjustment bolt 11 is rotated by inserting a screwdriver or the like through a through hole 20 formed in the inner frame support part 12 so as to abut against the upper surface of the upper wall of the inner frame support part 12. In this embodiment, the center portion of the holding seat 19 protrudes downward, thereby forming a gap between the holding seat 19 and the inner frame support portion 12, so that the upper end portion of the adjustment bolt 11 is connected to the inner frame. The inner frame support part 12 of the outer frame body 5 and the support seat 1 of the support device 4 are configured so as not to protrude upward from the upper surface of the support part 12.
0, the outer frame body 5 is adjusted by the adjusting bolt 11.
After vertical positioning, it is fixed with a fastener (not shown).

According to the floor inspection port of the second embodiment, the locking groove 31 formed in the support portion 30 of the support member 7 and the support seat 1
The vertical position of the outer frame 5 is roughly adjusted by adjusting the engagement position with the engagement protrusion 33 of 0, and then the vertical position of the outer frame 5 is finely adjusted by rotating the adjustment bolt 11. As a result, the vertical position of the outer frame 5 can be adjusted accurately and quickly.

In each of the above embodiments, the support member 7 is framed in a rectangular shape to form the support device 4, and the support device 4 is arranged in a rail shape on the lower surface side of the opening edge 3 of the floor opening 2. A pair of supporting members 7 provided
Alternatively, the holding seat 19 provided on the lower surface side of the inner frame support part 12 of the outer frame body 5 may be formed integrally with the inner frame support part 12.

As is clear from the above description, according to the installation structure of the floor inspection port according to the present invention, the holding seat provided on the outer frame of the floor inspection port and the support seat provided on the support device are made to face each other. An adjustment bolt that can be operated when the inner frame body is open is interposed between the seat and the support seat, so even after installing the inspection port, if the inner frame body is opened and the adjustment bolt is operated,
Its installation height can be easily changed.

Therefore, when installing a floor inspection port, it is no longer necessary to set the installation height accurately as in the past, and after installing the floor inspection port at the appropriate height, the adjustment bolt can be operated. Since it is only necessary to make the height the same as the floor surface, the installation work can be made very simple.

Furthermore, a support device configured to provide a seat for the support rod by protruding a support seat is fixed to the lower surface of the floor at the opening edge of the floor opening, and
Since this support device is supported by support rods erected on the ground, it can simultaneously serve as a reinforcing material for the floor at the edge of the opening.

Therefore, it is possible to compensate for the strength or rigidity of the floor at the opening edge of the floor opening, which has decreased due to the opening of the floor opening, and even without the use of a separate reinforcing material or the like. Deflection of the floor surface can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the first embodiment of the present invention, FIG. 2 is an enlarged sectional view of the main part thereof, and FIG. 3 is a sectional view showing the case where the first embodiment is used on a thin floor for comparison.
FIG. 4 is an enlarged sectional view of a main part showing a modification of the first embodiment, and FIG. 5 is a sectional view showing a second embodiment. DESCRIPTION OF SYMBOLS 1... Floor, 2... Floor opening, 3... Opening edge, 4... Support device, 5... Outer frame, 6... Inner frame, 10... Support seat,
DESCRIPTION OF SYMBOLS 11... Adjustment bolt, 12... Inner frame support part, 19... Holding seat.

Claims (1)

[Scope of Claims] 1. In a floor inspection port formed by attaching an outer frame to the opening edge of a floor opening opened in the floor and fitting an inner frame to the outer frame, the lower end of the outer periphery of the outer frame A supporting device is provided with a holding seat and is fixed on the lower surface of the floor at the opening edge of the floor opening, and has a supporting seat located opposite to the holding seat of the outer frame body. The outer frame body is supported by a support rod, and the outer frame body is mounted so as to be adjustable in the vertical direction by interposing an adjustment bolt between the support seat and the holding seat, which can be operated when the inner frame body is open. Installation structure of floor inspection port.