JP2000146188A - Hori-zataku (recessed low table) - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a HORI-ZATAKU (recessed low table) having a low table easily located and installed on an opening in a floor face and having locator pins that do not work interference when the low table is removed and used alone. SOLUTION: In a HORI-ZATAKU (recessed low table) wherein a square member 3 is installed in four peripheries of a floor face opening 2 having a stove box 1 included therein, four legs 5 at four corners of a low table are placed on corner parts at four corners of the square member 3 and the low table 4 is freely removably installed above the floor face opening 2, locator pins 9 is retractably provided in bottoms of the legs 5 of the low table 4 and the locator pins 9 protrude from the bottoms of the legs 9 to inside of corners of the floor face opening 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digging table, and more particularly to a digging table capable of easily positioning and setting a sitting table above a floor opening.

[0002]

2. Description of the Related Art A conventional digging table has a drawback that it cannot be used alone by removing the sitting table because the table is fixed on the floor opening.

[0003] For this reason, a detachable sitting table as shown in FIGS. 5 and 6 has been developed. This table is a furnace box 1
01 are placed on the four edges of the floor opening 102, and the four legs 105 of the table 104 are placed on the four corners of the frame 103, and the table 103 is placed on the floor opening 102. The tenon 104 formed at the lower end on the inside of each leg 105 is installed inside the four corners of the floor opening 102 so that the leg 105 does not fall into the floor opening 102. It is fitted and positioned.

As shown in FIG. 7, a dowel pin 107 is planted at a corner of the frame 103, and the dowel pin 107 is inserted into a hole 108 formed on the bottom surface of the leg 105 of the sitting table.
There is also a positioning device 05 that is positioned so as not to fall into the floor opening 102.

[0005]

However, FIG.
Since the tenon table 106 shown in FIG. 6 has the tenon 106 at the lower end of the leg 105, even if the table 104 is detached and used alone, the tenon 106 is difficult to use, and There was a problem that was also bad.

[0006] In the digging table shown in FIG. 7, when the table is removed, the dowel pins 107 project from the frame 103 and become obstructive.
In addition, there is a problem that the dowel pin 107 is easily broken.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to easily position and install a table above a floor opening, and to remove the table. It is an object of the present invention to provide a convenient digging table that does not have to worry about the positioning pin getting in the way when used alone.

[0008]

In order to achieve the above-mentioned object, a digging table according to claim 1 of the present invention is provided with frames at four peripheral edges of a floor opening in which a furnace box is placed, and at four corners of the frames. In a digging table where the four corners of the table are placed on the corners and the table is detachably mounted on the floor opening, positioning pins are provided on the bottom of the table legs so that they can come and go, and positioning is performed. The pin is projected from the bottom surface of the leg to the inside of the corner of the floor opening.

[0009] In the digging table having such a configuration, when the table is set on the floor opening by placing the four corner legs of the table on the four corners of the frame, the positioning pins are placed on the floor from the bottom of the legs. Since the position of the leg is determined by protruding inside the corner of the surface opening, there is no fear that the leg falls into the floor opening. When the sitting table is detached and used alone, the positioning pin is immersed in the bottom of the leg, so that it is not in the way and is not visible from the outside, so that the appearance is not spoiled.

Next, a digging table according to a second aspect of the present invention,
2. The digging table according to claim 1, wherein a screw hole is formed on the bottom surface of the leg of the table, a screw is cut on the upper portion of the pin, and a groove or hole for inserting a rotating tool is formed on a lower end surface of the pin. A positioning pin is provided at the bottom of the leg of the sitting table so as to be freely retractable by screwing into the hole.

The digging table having such a configuration is such that the rotating pin is inserted into a groove or a hole in the lower end face of the positioning pin and is rotated in the screwing direction or the opposite direction so that the positioning pin is immersed in or protrudes from the bottom of the leg. Or can be. Therefore, if the positioning table is placed above the floor opening by projecting the positioning pins from the screw holes on the bottom of the legs, the positioning can be performed so that the legs do not fall down. Into the screw hole on the bottom of the leg,
The positioning pins do not get in the way.

[0012] Further, a digging table according to claim 3 of the present invention,
The digging table according to claim 1, wherein a positioning pin having a large-diameter shaft portion and a small-diameter shaft portion is inserted from a large-diameter shaft portion into a hole formed in the bottom surface of the leg of the sitting table. A positioning pin is provided at the bottom of the leg of the sitting table so as to be able to protrude and retract by providing a stopper for preventing escape from the hole.

In the digging table having such a configuration, when the table is placed on the floor opening, the small-diameter shaft portion of the positioning pin is moved from the hole in the leg bottom surface to the floor opening by the weight of the positioning pin. Since the large-diameter shaft portion is prevented from being pulled out by the stopper while projecting to the inside of the corner, the positioning is performed so that the leg is not dropped by the protruding small-diameter shaft portion. When the table is removed and used on a floor or a tatami mat, the positioning pin is pushed into the hole in the bottom of the leg by the floor or the tatami mat, so that the positioning pin is not obstructed and the appearance is not impaired.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic sectional view of a digging table according to an embodiment of the present invention, and FIG. 2 is a partial sectional view of a leg of the sitting table.
(A) shows the state where the positioning pin is screwed into the screw hole,
(B) shows a state in which the positioning pins protrude from the screw holes. FIG. 3 is a perspective view of the leg of the sitting table as viewed obliquely from below.

This excavating table is provided with frames 3 at the four peripheral edges of a square floor opening 2 in which the furnace box 1 is placed, and on the four corners of the frame 3, the four legs of the table 4 The table 4 is detachably mounted on the floor opening 2 by displacing the table 5 slightly inward.

The furnace box 1 is a box made of FRP, synthetic resin, plywood or the like and having a depth of about 40 to 45 cm, and an electric heater 7 is installed on a bottom surface thereof. Then, a snowboard 6 is laid so as to cover the electric heater 7.

Since the distance between the legs of the sitting table 4 is set slightly smaller than the interval between the opposing frames 5, 5, the legs 5 at the four corners are slightly inward from the corners of the frame 3 as described above. It is placed at the position where it has shifted and entered. A screw hole 8 is formed in the bottom of the leg of the portion that has entered the inside, and a positioning pin 9 is attached to the screw hole 8 so as to be able to protrude and retract.

The positioning pin 9 is formed by cutting a screw into a pin upper part 9a having a large shaft diameter and a pin lower part 9a having a small shaft diameter.
A groove 9c (cross groove or single groove) for inserting a rotating tool is formed in the lower end surface of the pin b, and a threaded pin upper portion 9a is screwed into the screw hole 8 on the bottom of the leg from below and attached. . Accordingly, when the tip of a rotating tool such as a plus or minus screwdriver is inserted into the groove 9c of the positioning pin 9 and the positioning pin 9 is rotated in the screwing direction, as shown in FIG. 8
1 and 2 (b), the pin lower portion 9b of the positioning pin 9 projects from the bottom surface of the leg 5 to the inside of the corner of the floor opening 2 as shown in FIGS. Has become.

The digging table has the positioning pins 9 as described above.
Is projected to the inside of the corner of the floor opening 2 to fix the position of the legs 5, so that even if a lateral force is applied to the sitting table 4, there is no fear that the legs 5 fall into the floor opening 2. Absent. And when you remove the table and use it alone,
The positioning pin 9 can be completely immersed in the screw hole 8 of the leg 5 as shown in FIG.
Since it is not visible from the outside, it does not impair the appearance.

The positioning pin 9 in this embodiment is
Although the groove 9c for inserting the rotating tool is formed on the lower end face as described above, a hole (for example, a hexagon wrench hole) for inserting the rotating tool is formed on the lower end face of the pin, and a rotating tool such as a hexagon wrench is inserted. You may make it rotate.

FIGS. 4A and 4B are partial cross-sectional views of a leg of a digging table according to another embodiment of the present invention, wherein FIG. 4A shows a state in which a positioning pin is immersed in a hole, and FIG. 2 shows a state protruding from the camera.

In the drill table of this embodiment, a hole 80 is formed in the bottom surface of the leg 5 of the table, and the large-diameter shaft portion 90a and the small-diameter shaft portion 90 are formed.
The positioning pin 90 having the position b is inserted into the hole 80 from the large-diameter shaft portion 90a, and the stopper 10 for preventing the large-diameter shaft portion 90a from coming out is attached to the entrance of the hole 80. This stopper 10 has an opening diameter of a small diameter shaft portion 90b.
The stopper is made of a donut plate having a slightly larger opening than the large-diameter shaft portion 90a, but is not limited thereto. Any stopper that can prevent the large-diameter shaft portion 90a from slipping out is used. May be attached. Other configurations are the same as those of the above-mentioned embodiment,
Description is omitted.

In such a digging table, when the sitting table is set on the floor opening, the small-diameter shaft portion 90b of the positioning pin 90 is moved by its own weight as shown in FIG. 4B. The stopper 10 attached to the entrance of the hole 80 protrudes from the opening of the stopper 10 to the inside of the corner of the floor opening 2, and the stopper 10 prevents the large-diameter shaft 90a from coming off. Are positioned so that they do not fall. And remove the table,
When used on a floor or a tatami mat, the positioning pin 90 is completely pushed into the hole 80 in the bottom of the leg by the floor or the tatami mat as shown in FIG. Nor.

[0025]

As is apparent from the above description, the digging table of the present invention can easily and reliably position the legs of the table so that the legs of the table do not fall into the floor opening. When the locating pin is removed and used alone, there is a remarkable effect that the positioning pin can be immersed in the screw hole or hole at the bottom of the leg, so that it is not obstructive, and is not visible from the outside, so that the appearance is not spoiled.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a digging table according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of a leg of a table of the same table,
(A) shows the state where the positioning pin is screwed into the screw hole,
(B) shows a state in which the positioning pin protrudes from the screw hole.

FIG. 3 is a perspective view of the leg of the sitting table of the dug-up table, as viewed obliquely from below.

FIGS. 4A and 4B are partial cross-sectional views of legs of a digging table according to another embodiment of the present invention, wherein FIG. 4A shows a state in which a positioning pin is immersed in a hole, and FIG. It shows the state where it was turned on.

FIG. 5 is a schematic sectional view of a conventional digging table.

FIGS. 6A and 6B are partial perspective views illustrating a conventional positioning means for legs of a digging table, where FIG. 6A shows a state before the legs are placed on the corners of the frame, and FIG. This shows a state where the legs are placed.

FIGS. 7A and 7B are partial perspective views for explaining another conventional leg positioning means of a digging table, wherein FIG. 7A shows a state before the legs are placed on the corners of the frame, and FIG. This shows a state where the legs are placed on the corners.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Furnace box 2 Floor opening 3 Frame 4 Table 5 Leg 8 Screw hole 9,90 Positioning pin 9a Pin upper 9b Pin lower 9c Groove 90a Large diameter shaft portion 90b Small diameter shaft portion 10 Stopper

Claims (3)

[Claims] 1. A frame is provided on the four edges of the floor opening in which the furnace box is placed, and the four corners of the table are placed on the four corners of the frame to place the table on the floor opening. In the digging table that is detachably installed, a positioning pin is provided at the bottom of the leg of the table so that it can come and go,
A digging table characterized in that the positioning pins protrude from the bottom of the leg to the inside of the corner of the floor opening. 2. A positioning pin having a screw hole formed in the bottom surface of a leg of a sitting table, a screw cut into an upper portion of the pin, and a groove or a hole into which a rotating tool is inserted into a lower end surface of the pin is screwed into the screw hole. The digging table according to claim 1, wherein the positioning pin is provided at the bottom of the leg of the sitting table so as to be able to protrude and retract. 3. A stopper for inserting a positioning pin having a large-diameter shaft portion and a small-diameter shaft portion from the large-diameter shaft portion into a hole formed in the bottom surface of the leg of the sitting table, and preventing the large-diameter shaft portion from coming off. 2. A positioning pin is provided at the bottom of a leg of a sitting table so as to be able to protrude and retract by providing a hole at an entrance of the hole.
Digging table described in.