JP2595735Y2 - Chair mounting table - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair mounting table.

[0002]

2. Description of the Related Art A chair constructed so that a seat or the like can be moved up and down so that an elderly person or the like can sit and stand up easily can not change its direction when placed on a floor or the like as it is. For this reason, conventionally, such a chair as described above, a fixed plate placed fixedly on the floor surface, and a rotating plate that is rotatably mounted on the vertical axis via a metal ball on the fixed plate. The chair was placed on a chair-mounting table so that the direction of the chair could be easily changed.

[0003]

The present invention is to provide a However, mounting a conventional chair
At the table, multiple rollers are dissipated during cleaning,
Assemble them again as well as gather
Was also troublesome and time-consuming. Therefore, the present invention
Solve the above problem and disassemble and separate the fixed plate and the rotating plate.
When cleaning, do not dissipate multiple rollers.
Easy to do and easy to reassemble
It is an object of the present invention to provide a chair mounting table capable of carrying out.

[0004]

In order to achieve the above-mentioned object, a chair mounting table according to the present invention comprises a lower fixing plate and an upper chair mounting rotating plate which are rotatable about a vertical axis. co When connected, between the upper Symbol fixed plate and the rotary plate, a chair mounting table was Zaisa via re tape <br/> Na plate, of the retainer plate
A plurality of mounting holes are provided in the vicinity of the outer edge to
A roller is disposed inside each of the holes, and the shape of the roller is
Has a cylindrical shape, and is rotatably mounted on a frame via a shaft member.
The frame body is attached to a rectangular frame portion in plan view and a lower end portion of the frame portion.
An outer flange portion protruding horizontally outward, and a flat surface of the frame portion.
The external dimensions of the mounting hole are
Are set to be almost the same as the internal dimensions
A notch for positioning the shaft member is formed in the attachment hole.
And the side of the rectangular frame is pulled out from the retainer plate.
A claw portion for stopping is protruded, and the frame, the shaft member, and the
Rollers are integrated into the mounting hole of the retainer plate.
In the mounting state in which the outer flange portion is mounted by being fitted from below,
Abuts against the lower surface of the retainer plate, and the claw is
It is configured to be locked on the upper surface side of the tena plate .

[0005]

[ Function ] Since the frame has a claw, it is separated from the retainer plate.
And a plurality of rollers are integrally formed with this frame.
The roller is integrated when the retainer plate is lifted
Lifted in the form.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.

FIG. 4 shows a use state of the chair mounting table according to the present invention. The chair mounting table 1 enables a chair 2 configured so that an elderly or sick person can easily sit and stand up so that the chair 2 can be easily turned. For rotatably supporting around a vertical axis.

The chair 2 includes a chair main body support portion 3 mounted on the chair mounting table 1 in an upright position, and leg portions 8 and 8 attached to the lower left and right portions of the support portion 3 so as to protrude forward. A chair body 7 having a seat 4, a back 5 and arms 6, 6 and attached to the chair body support 3 so as to be able to move up and down electrically.

As shown in FIGS. 1 and 2, the chair mounting table 1 comprises a lower horizontal and square fixing plate 9 and an upper horizontal and square rotating plate 10 for chair mounting. A plastic cylindrical roller 11... And a retainer plate 12 interposed between the fixed plate 9 and the rotating plate 10 are provided.

The fixed plate 9 and the rotating plate 10 are rotatably connected around a vertical axis L. Specifically, a bolt member 13 is fixed to the center of the fixing plate 9 as an upwardly projecting shape, and the bolt member 13 is inserted into a hole formed through the center of the rotating plate 10 and the upper surface of the rotating plate 10 is And bolt member 13 to nut member
Screw 14 in.

[0011] Further, the plastic cylindrical rollers 11 ...
A plurality of retainer plates 12 are arranged radially around the vertical axis L. The retainer plate 12 is formed of a circular metal plate, and is rotatably supported by a bolt member 13 around a vertical axis L.

As shown in FIG. 3, the plastic cylindrical roller 11 has a rectangular plastic frame 30 when viewed in plan.
Is rotatably mounted on a shaft member 31 via a shaft member 31. Frame 30
Comprises a rectangular frame portion 33 and an outer flange portion 32 protruding horizontally outward from the lower end of the frame portion 33. On the side surface of the rectangular frame portion 33, a claw portion 39 for preventing the rectangular frame portion 33 from coming off from the retainer plate 12 is provided.

The retainer plate 12 has a mounting hole near the outer edge.
Has 34. The inner dimensions of the mounting holes 34 are set to be substantially the same as the outer dimensions of the rectangular frame 33 of the frame 30 in plan view. The mounting hole 34 has cutouts 35 for positioning the shaft member 31.

Thus, the mounting hole 34 of the retainer plate 12 is provided.
Then, the rectangular frame 33 of the frame 30 is press-fitted from below, and the roller 11 is attached to the retainer plate 12.

With the above configuration, if the nut member 14 on the upper surface side of the rotating plate 10 is removed, the rotating plate 10 and the retainer plate 12 can be separated from the fixed plate 9 (see FIG. 1). further,
By hitting the plastic frame 30 downward with respect to the retainer plate 12, the roller 11 can be easily removed, and the roller 11 can be easily replaced (see FIG. 3).

Returning to FIGS. 1 and 2, the fixing plate 9 includes a substrate 15 on the lower surface side and a thin copper metal plate 16 stuck on the upper surface side of the substrate 15. The metal plate 16 is circular when viewed in plan. Note that the metal plate 16 may be formed of a metal other than copper.

At one position on the outer edge of the metal plate 16 of the fixing plate 9, a stopper member 17 for preventing the rotation plate 10 from rotating more than one rotation is fixed. That is, the lower end of the stopper projecting member 18 fixed to the rotating plate 10 abuts on the stopper member 17 to prevent the rotating plate 10 from rotating.

The stopper projecting member 18 includes a guide member 28 fixed to the outer end edge of the rotary plate 10 and a vertical rod 29 with a knob which is vertically movably inserted into the guide member 28 and whose lower end projects downward. And consisting of

A plurality of vertical rods 29 with knobs of the stopper projecting member 18 are provided at a plurality of positions on the outer edge of the metal plate 16 of the fixing plate 9.
Are provided with stopper holes 21.

The stopper holes 21 are fixed to the fixing plate 9.
Are provided at a pitch of about 90 ° with the center at the center. As a result, the rotating plate 10 and the chair 2 placed thereon can be stopped about every 90 °.

It is preferable that the stopper holes 21 are provided at a plurality of four or more places. By doing so, the rotating plate 10 can be stopped at every angle smaller than 90 °.

The rotary plate 10 comprises a substrate 19 and a thin copper metal plate 20 attached to the lower surface of the substrate 19.

The chair placing table has a chair placing / positioning means 26 for placing the lower part of the chair 2 to determine the position (see FIG. 2). The chair placing / positioning means 26 includes the chair 2
Chair fixing parts 22 and 22 for detachably fixing the lower part of the rotating plate 10 to the upper surface of the rotating plate 10, and protruding ridges 27 protruding from the chair fixing parts 22 and 22 in the left-right direction as long. .

The chair fixture 22 includes a fixture 24 having an arch-shaped holding piece 23 for pressing the upper half of the leg 8 of the chair 2 downward, and an upper and lower part provided at the base of the fixture 24. Screw with a thumb that is inserted from above into the hole in the direction and that is screwed into the screw hole that opens in the upper surface of the rotating plate 10 so that it can advance and retreat
25 (see FIG. 1).

As shown in FIG. 4, when the chair 2 is positioned, the ridge 27 of the chair placing / positioning means 26 and the chair fixtures 22 are well balanced on the rotary plate 10 when the chair 2 is positioned. It is provided at a position where it is placed.

The lower front edge of the chair main body supporting portion 3 of the chair 2 is brought into contact with the rear edge of the ridge 27,
The legs 8, 8 of the chair 2 are connected to the holding pieces 23,
If it is located below 23, the chair 2 can be positioned.

Furthermore, the screws with knobs of the chair fixtures 22, 22
By tightening 25, the legs 8, 8 (that is, the chair 2) can be fixed on the rotating plate 10 (FIGS. 1 and 4).
reference).

Next, FIG. 5 shows a modification of the chair fixtures 22 and 22. This chair fixture 22 has a rear opening hole into which the tip of the leg 8 of the chair 2 is removably inserted. A block-shaped member 37 having a portion 36, and a knob screw 38 which is screwed from the upper surface of the block-shaped member 37 into a screw hole formed in a communicating manner with the internal hole 36 so as to be able to advance and retreat.

The chair 2 can be fixed on the rotating plate 10 by inserting the leg 8 of the chair 2 into the rear opening 36 of the block-shaped member 37 and tightening the thumb screw 38. .

FIG. 6 shows another embodiment of the chair placing table of the present invention. In this case, the chair placing / positioning means 26 comprises:
An engaging portion 41 having a hole 40 into which the tip of the leg portion 8 of the chair 2 is removably inserted, and a ridge portion 42 abutting on a lower rear edge of the chair body support portion 3 of the chair 2. Become.

Thus, the chair 2 is placed on the rotary plate 10 as shown by the arrow A in FIG.
Then, if the tip of the leg 8 is inserted, the chair 2 can be fixed on the rotating plate 10. When the chair 2 is pulled in the direction opposite to the arrow A, the chair 2 can be removed from the rotating plate 10.

It should be noted that the present invention is not limited to the above-described embodiment, and the design can be freely changed without departing from the scope of the present invention. For example, in FIG.
27 is formed as a single horizontal character, but it is also possible to form two horizontal splits. Instead of the ridge 27, a concave portion into which the bottom of the chair main body supporting portion 3 of the chair 2 is fitted from above may be provided on the upper surface of the rotary plate 10.

FIG. 2 shows that 16 retainers are provided on the retainer plate 12.
11 are radially arranged for each predetermined center angle. However, the number of rollers 11 can be freely set to about 8 to 15 or about 17 to 20.

Furthermore, although the fixed plate 9 and the rotating plate 10 are square in plan view, they may be circular in plan view.

[0035]

[Effect of the Invention] The present invention is configured as described above.
The following effects are obtained.

For cleaning, the fixed plate 9 and the rotating plate 10 are separated.
When disengaged, the claw portion 39 of the frame 30 is engaged with the upper surface of the retainer plate 12.
Stop, and the roller 11 is formed integrally with the frame 30
And lifted with the retainer plate 12 and thus dissipated
Cleaning can be performed easily, and
Assembly can be easily performed after the cleaning.

Even if the hardness and rigidity of the opposing surfaces (metal plate 16 and metal plate 20) of the fixed plate 9 and the rotary plate 10 are low (because the area where the plastic cylindrical rollers 11 abut is sufficiently large) is used In this case, it can be sufficiently endured. Therefore, an easily available and inexpensive material such as a copper plate can be used as a material for the facing surfaces of the fixed plate 9 and the rotating plate 10, and the chair mounting table can be manufactured easily and inexpensively.

[Brief description of the drawings]

FIG. 1 is a partially cutaway rear view of an embodiment of the present invention.

FIG. 2 is a partially broken plan view.

FIG. 3 is an enlarged perspective view of a main part.

FIG. 4 is a perspective view showing a use state.

FIG. 5 is a perspective view showing a modification of the chair fixture.

FIG. 6 is a simplified cross-sectional side view of another embodiment of the present invention.

[Description of Signs] 9 Fixing plate 10 Rotating plate 11 Plastic cylindrical roller 12 Retainer plate 22 Chair fixing device 26 Chair mounting positioning means L Vertical axis

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47C 3/18 A47B 11/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A lower fixing plate 9 and an upper chair mounting rotary plate 10 are rotatably connected around a vertical axis L.
A, between the upper Symbol fixing plate 9 and the rotary plate 10, Li retainer plate
A chair mounting table was Zaisa via 12, of the retainer plate 12
A plurality of mounting holes 34 are provided near the outer edge to
The rollers 11 are disposed inside each of the holes 34, and the rollers 11
The shape of 11 is cylindrical, and the shaft member is rotatable on the frame 30.
The frame 30 is connected to a rectangular frame 33 in a plan view.
An outer flange 32 projecting horizontally outward from the lower end of the frame 33
The outer dimensions of the frame 33 in plan view are the same as those described above.
Almost the same size as the internal shape of the attachment hole 34 in plan view
And the shaft member 31 is inserted into the mounting hole 34.
The positioning notches 35, 35 are formed, and the rectangular
On the side of the frame part 33, a claw part for retaining from the retainer plate 12
39, the frame 30, the shaft member 31, and the roller 11
Is integrated into the mounting hole 34 of the retainer plate 12.
In the mounting state in which the outer flange portion is mounted by being fitted from below,
32 abuts against the lower surface of the retainer plate 12, and
39 is configured to lock on the upper surface side of the retainer plate 12.
Chair mounting table, characterized in that there.