JP3164534B2 - Furniture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to movable furniture (including a partition wall having no storage section) provided with movable wheels at the bottom of a furniture body.

[0002]

2. Description of the Related Art Although movable furniture of this kind is convenient for the user to change the arrangement, it is necessary to lock the furniture at an installation position so that it cannot be easily moved when a person leans on or when an earthquake occurs. However, conventionally, the moving wheels are configured to be able to move up and down with respect to the furniture main body, and when the furniture is locked at the installation position, each moving wheel is raised relatively to the furniture main body so that it can be moved to the floor surface. On the other hand, the furniture main body is relatively lowered so that the trolley at the bottom of the furniture main body is grounded on the floor.

[0003]

In the above-described conventional configuration, when moving furniture, it is necessary to lower the moving wheels relatively to the furniture body and lift the furniture body to the floor. That is, it is necessary to secure a space between the upper end of the furniture main body and the ceiling surface with the furniture installed.
In other words, the furniture cannot be installed such that the upper end of the furniture body is close to or in contact with the ceiling surface for anti-earthquake measures and the like.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide furniture which can solve the above-mentioned conventional problems. The moving wheels 5 are provided on the bottom of the furniture body 1.
And the installation grounding body 10 are provided, and the installation grounding body 10 is attached to the furniture main body 1 so as to be able to ascend and descend between an upper position and a lower position with respect to the grounding level of the moving wheel 5, A plurality of lifting / lowering driving means 11a to 11f for driving the grounding body 10 in parallel with the furniture body 1
And one driving operation shaft 16, and interlocking means 17 for interlockingly connecting the plurality of lifting / lowering driving means 11 a to 11 f to the one driving operation shaft 16, wherein the installation grounding body 10 is moved The height of the furniture body 1 is lowered by raising the wheel 5 to a position above the ground level of the wheel 5, and the moving wheel 5 is grounded, and the mounting grounding body 10 is mounted.
Is furniture configured such that the height of the furniture main body 1 is increased by descending to a position below the ground level of the moving wheel 5, and the moving wheel 5 is floated.
The installation grounding body 10 has a plurality of levels that can be adjusted.
Is provided .

[0005] When the furniture of the present invention having the above-described configuration is embodied, the mounting grounding body 10 is fitted to the fixed bottom frame 3 disposed on the bottom of the furniture main body 1 so as to be vertically movable. The fixed bottom frame 3 and the lifting bottom frame 4
Thus, the base wheel 2 at the bottom of the furniture main body can be configured.

Further, the plurality of lifting / lowering driving means 11a to 11a
Each of 1f is fixedly mounted to the fixed grounding body 10 side, and is fixed to the fixed female screw body 12 or male screw body, and is rotatably supported on the bottom side of the furniture main body 1 and screwed to the fixed female screw body 12 or male screw body. The interlocking means 17 is provided with a rotating male screw body 13 or a female screw body of each of the lifting / lowering driving means 11a to 11f and the one driving operation shaft 16. 18 and 19, and an endless chain 20 that is horizontally hung over each of the tooth rings 18 and 19.

Further, the one driving operation shaft 16 is vertically supported on the bottom of the furniture main body 1, and the driving operation shaft 16 is provided with a vertical penetrating operation provided on the furniture main body bottom plate 6. The rotation operation unit 16a located inside or directly below the hole 22 can be provided at the upper end.

[0008]

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The basics of the present invention except for the main parts will be described below.
The configuration will be described with reference to the accompanying drawings.
Is a furniture body, and 2 is a pedestal formed on the bottom of the furniture body 1, and a fixed bottom frame 3 fixed to the bottom of the furniture body 1, and an elevating bottom fitted to the fixed bottom frame 3 so as to be able to move up and down. And a frame 4. Reference numeral 5 denotes a movable wheel (caster wheel) disposed at the bottom of the furniture main body 1 and inside the base wheel 2.

As shown in FIGS. 3 and 4, the fixed bottom frame 3 constituting the base wheel 2 is fixed to the lower side of the bottom plate 6 of the furniture body 1 and has a rectangular planar shape. The cover member 7 is fixedly hung down, and the inside of the frame 8a is provided at two places near both ends in the longitudinal direction and at five places at the central position in the longitudinal direction.
To 8e. Elevating bottom frame 4 constituting gantry 2
As shown in FIGS. 2 to 4, each of the fixed bottom frame 3 has the same shape and the same size as the fixed bottom frame 3. Place frame 8
a, 8c, and 8e, three frames 9a to 9c in the transverse direction are provided so as to correspond to right below,
And the frames 9a to 9c constitute an installation grounding body 10.

As shown in FIG. 2, between the fixed bottom frame 3 and the grounding member 10 for mounting, lifting drive means respectively disposed at positions near both ends of each of the frames 9a to 9c on the side of the grounding member 10 for mounting. 11a to 11f are provided. Each of these lifting / lowering driving means 11a to 11f has the same structure, and as shown in FIGS. 3 and 4, fixed female screw bodies (female screw bodies) which are vertically fixed on the respective frames 9a to 9c of the installation grounding body 10. ) 12 and the fixed female screw body 12
And a rotating male screw body 13 (which may be a female screw body). The rotating male screw body 13 is supported by a bearing 14 fixed to the frames 8a, 8c, 8e on the fixed bottom frame 3 side so as to be able to rotate only. ing.

A bearing 15 is mounted on the frame 8b on the fixed bottom frame 3 side.
Is fixed, and the driving operation shaft 16 is vertically supported on the bearing 15 so as to be able to rotate only. Reference numeral 17 denotes an interlocking means, which is a rotary male screw body 1 of each of the elevation driving means 11a to 11f.
3, a tooth wheel 18 fixed to the drive operation shaft 16, and a rotation of the drive operation shaft 16 causes the tooth wheels 18 of the rotary male screw bodies 13 to rotate in conjunction with each other in the same direction. And an endless chain 20 bridged over the respective tooth rings 18 and 19. Each bearing 14, 15
, A radial bearing can be provided so that each of the rotating male screw bodies 13 and the driving operation shaft 16 can rotate lightly and smoothly, and each of the rotating male screw bodies 13 on which the weight of the furniture body 1 acts has, for example, Tooth ring 18 and frame 8 on it
A thrust bearing 21 can be interposed between a, 8c, and 8e.

At the upper end of the driving operation shaft 16 is provided an angular shaft-shaped rotation operation portion 16a. The rotation operation portion 16a is provided inside the vertical operation hole 22 provided in the bottom plate 6 of the furniture main body (even directly below). Good) located. 3A and 4A
In the figure, reference numeral 23 denotes a rotation operation handle, and the rotation operation portion 16a of the drive operation shaft 16 has the through operation hole 2 formed therein.
2 is provided with a cylindrical shaft portion 23a which can be detachably fitted through the second shaft portion 2. In addition, a square hole may be provided as the rotation operation portion 16a of the drive operation shaft 16, and a square shaft portion detachably fitted to the square hole may be provided in the rotation operation handle 23.

The movable wheels 5 are attached to the fixed bottom frame 3 on the lower side near both ends of the frames 8b and 8d.
However, when the installation grounding body 10 is at the ascending limit position as shown in FIGS. 3A and 4A, the grounding level of each movable wheel 5 is lower than the lower end grounding surface 10 a of the installation grounding body 10. 3B and 4B, and by lowering the installation grounding body 10 as shown in FIGS. 3B and 4B,
The lower end ground surface 10a of the installation grounding body 10 can project downward from the ground level of each movable wheel 5.

As shown in FIG. 2, a tension adjusting tooth wheel 24 for adjusting the tension of the endless chain 20 of the interlocking means 17 is provided, for example, under the frame 8d on the fixed bottom frame 3 side as shown in the figure. It can be pivotally supported at an appropriate place.

When the furniture is moved on the floor surface 25 by using the movable wheels 5 as shown in FIG. 1A, the driving operation shaft 16 is turned by using the rotation operation handle 23. Is transmitted to the rotating male screw body 13 of each of the lifting / lowering driving means 11 a to 11 f via the endless chain 20 of the interlocking means 17 and the respective tooth rings 18 and 19, and is screwed into the fixed female screw body 12. 3A and 4A, the mounting grounding body 10 (elevating bottom frame 4 of the pedestal wheel 2) is driven through the fixed female screw bodies 12 by interlocking rotation driving of the rotary male screw bodies 13 in the moving direction. Furniture body 1
To the ascending limit position. As a result, the furniture main body 1 descends relatively to the floor surface 25, and the movable wheel 5 in the pedestal 2 abuts on the floor surface 25 as shown in FIG. Can be used to move furniture. At this time, the upper end 1a of the furniture body 1
There is a gap between the ceiling and the ceiling surface 26.

When the furniture, which has been moved to a predetermined position, is to be installed, the driving operation shaft 16 is driven to rotate in the reverse direction by using the rotation operation handle 23, and the rotational force is transmitted to the interlocking means 17.
Is transmitted to the rotating male screw body 13 of each of the lifting / lowering driving means 11a to 11f through the endless chain 20 and each tooth wheel 18 and 19, and the rotating male screw body 13 is driven to rotate in the direction in which the fixed female screw body 12 is fed out. 3B and 4B
As shown in (1), the grounding body for installation 10 (the bottom frame 4 of the pedestal 2) is moved down with respect to the furniture main body 1 via each fixed female screw body 12. As a result, the lower end ground surface 10a of the installation grounding body 10 (the lifting bottom frame 4 of the pedestal 2) falls below the grounding level of the movable wheel 5, and the installation grounding body 1
0 (elevation bottom frame 4 of the wheel 2), the bottom contact surface 10a is the floor surface 2.
5 abuts. Further, the grounding body 10 for mounting (the wheel 2
Is moved downward with respect to the furniture main body 1, the furniture main body 1 is raised with respect to the floor surface 25, and as shown in FIG.
5 and the upper end 1a of the furniture body 1
Can be brought into contact with the ceiling surface 26.

Of course, in the case of furniture having a low height, the upper end 1a of the furniture main body 1 can be maintained even if the installation grounding body 10 (the bottom frame 4 of the pedestal 2) is lowered to the lowermost position with respect to the furniture main body 1.
Does not contact the ceiling surface 26.

In the basic structure described above , since the lower end surface of the lifting bottom frame 4 of the undercarriage 2 and the lower end surfaces of the frames 9a to 9c are the lower end grounding surface 10a of the mounting grounding body 10, When the surface 25 is not completely horizontal, when the furniture is installed by descending the grounding body 10 for installation,
The furniture may rattle or tilt. In order to avoid this inconvenience, in the present invention, as shown in FIG. 5, frames 9a and 9c located at appropriate bottoms of the installation grounding body 10, for example, at both ends of the installation grounding body 10, are provided.
A plurality of grounding tools 27 whose level can be adjusted are attached at positions near both ends (near four corners of the mounting grounding body 10).
I have. Each grounding tool 27 in the illustrated embodiment includes a fixed female screw body 28 fixed on the frames 9a and 9c,
A male screw body 29 is vertically screwed through the fixed female screw body 28, and a grounding plate 30 rotatably attached to the lower end of the male screw body 29.
The rotary operation part 29a having a square axis formed at the upper end of the furniture main body is configured to be rotatable through a vertical operation hole 31 provided in the bottom plate 6 of the furniture main body. In this embodiment, the lower grounding surface 10a of the mounting grounding body 10 has four grounding members 2
7 is the lower end surface of the grounding board 30.

[0020]

As described above, according to the furniture of the present invention, when the furniture is moved on the floor surface by using the movable wheels, the furniture grounding body is raised with respect to the furniture body to move the furniture body to the floor. Since the moving wheels at the bottom of the furniture body are grounded on the floor surface, even if the height of the furniture at the time of installation is close to the ceiling surface, And the upper end of the furniture main body can be moved without fear of sliding.

In addition, when furniture is grounded on the floor surface by floating the moving wheels from the floor surface and the furniture is stably installed, the grounding member for installation is lowered to the furniture body and grounded, and the reaction force causes the furniture body to be grounded. Is lifted off the floor,
At the time of installation, the upper end of the furniture main body can be made to approach or contact the ceiling surface to prevent the furniture from falling down in the event of an earthquake or the like.

Further, since a plurality of lifting / lowering driving means for vertically moving the installation grounding body relative to the furniture main body are connected to one driving operation shaft by interlocking means, the first driving means is connected.
By operating only one driving operation shaft, a plurality of lifting / lowering driving means can be driven in conjunction with each other to drive the installation grounding body in parallel with the furniture body to move the furniture in a movable state and an installation state. Switching operation is easy.
The greatest feature of the present invention is that it is
Grounding on the floor with multiple attached level-adjustable grounding devices
The present invention according to
According to the configuration, even when the floor surface is not completely horizontal,
By adjusting the level of each grounding device according to the surface condition
Furniture can be installed horizontally and stably.

It is to be noted that the installation grounding body is a
A lift that fits up and down with respect to the fixed bottom frame provided at the bottom
A bottom frame is provided, and the fixed bottom frame and the lifting bottom frame are
If the base ring is configured , the grounding member for installation can be constituted by the lower half of the base ring disposed on the bottom of the furniture body, and the movable wheel can be hidden. In combination with the above, the appearance of the entire furniture can be configured to be the same as that of conventional one-off stationary furniture.

Further , each of the plurality of lifting / lowering driving means
With a female screw fixed vertically to the installation grounding body side.
Body or male threaded body and rotatable support on the bottom side of the furniture body
And screwed into the fixed female screw or male screw.
A male screw body or a female screw body;
The rotating male screw or female screw of each lifting drive
A toothed wheel mounted on one drive operating shaft, and
From the endless chain horizontally hung on each tooth ring
The means to drive the grounding body for lifting up and down in parallel
May be configured for the entire becomes simple and low cost implementation. Further, the one driving operation shaft is connected to the furniture main body.
It is supported vertically on the bottom, and the top of the drive shaft is
To the inside of the vertical penetration operation hole provided in the
Or, when the rotary operation unit located directly below is provided, the installation grounding body can be driven up and down from inside the furniture main body, so that the installation position of the furniture makes it difficult to move the installation grounding body up and down. No inconvenience.

[0025]

[Brief description of the drawings]

FIG. 1A is a side view showing furniture in a movable state, and FIG. 1B is a side view showing a state where furniture is installed on a floor surface in contact with ground.

FIG. 2 is a cross-sectional plan view showing an installation grounding body at the bottom of the furniture.

FIG. 3A is a vertical sectional front view showing the left half of the furniture bottom with the movable wheels grounded, and FIG. 3B is the right half of the furniture bottom with the installation grounding body grounded. FIG.

FIG. 4A is a longitudinal sectional side view showing a left end portion of the furniture bottom in a state where a movable wheel is grounded, and FIG. 4B is a left side of the furniture bottom in a state where an installation grounding body is grounded. It is a vertical side view which shows an end part.

FIG. 5 is a vertical sectional side view of a main part showing a modification.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Furniture main body 2 Base wheel 3 Fixed bottom frame 4 Elevating bottom frame 5 Free wheel for movement 6 Furniture main body bottom plate 7 Cover material around the base wheel 8a-8e Installation frame in fixed bottom frame 9a-9c Installation frame in lifting bottom frame DESCRIPTION OF SYMBOLS 10 Installation grounding body 10a Lower end grounding surface 11a-11f Elevating drive means 12 Fixed female screw body (or male screw body) 13 Rotating male screw body (or female screw body) 16 Driving operation shaft 16a Rotating operation part 17 Interlocking means 18, 19 Tooth ring Reference Signs List 20 endless chain 22, 31 penetration operation hole 23 handle for rotation operation 25 floor surface 26 ceiling surface 27 level adjustment grounding tool

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) A47B 9/00-9/20 A47B 27/00-27/18 A47B 45/00 A47B 46/00 A47B 91 / 00-91/16 A47B 97/00 B65G 7/00-7/12

Claims (1)

(57) [Claims] 1. A moving wheel and an installation grounding body are provided at a bottom of a furniture main body, and the installation grounding body can be moved up and down between an upper position and a lower position with respect to a grounding level of the moving wheel. A plurality of lifting / lowering driving means attached to the furniture main body and driving the installation grounding body in parallel with respect to the furniture main body, one driving operation shaft, and the plurality of lifting / lowering driving means as the one driving operation shaft Interlocking means for interlocking connection is provided, and the height of the furniture body is lowered by raising the installation grounding body to a position above the grounding level of the moving wheel, and the moving wheel is grounded, furniture der said transport wheel is configured to fly with use tread height of the furniture body is increased by lowering the lower position than the ground level of the transport wheel
Therefore, the installation grounding body has a level-adjustable complex.
Furniture with several grounding fixtures attached .