JP2001238734A - Table with movable top plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To optimize a working condition at all times correspondingly to the attitude of a seated worker by conveniently moving a tap plate of a table. SOLUTION: A base portion 10 of a horizontal top plate support 8 is supported on a support 1 with a vertical main shaft 3 in a rotationally movable manner and a horizontal top plate 14 is supported on the upper face of a loose end 11 of the top plate support 8 with a vertical sub-shaft 15a in a rotationally movable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table capable of suitably moving a top plate in accordance with a sitting posture of an operator.

[0002]

2. Description of the Related Art As shown in FIG. 7, a worker (B) sitting on a chair (A) places a backrest (C) in an upright posture (B) shown by a solid line.
There is a case where office work or desk work is performed as 1) or the backward tilted position (B2) indicated by the two-dot chain line. On the other hand, the conventional table (D) generally has the following problems since the top plate (E) is fixed.

[0003]

For example, a worker (B)
However, if the posture is changed from the upright posture (B1) to the backward leaning posture (B2), the interval between the upper body of the worker (B) and the top plate (E) becomes too wide, so that an optimal working state is obtained. Chair, as you can
Move either (A) or table (D)
(B) The distance between the upper body and the top plate (E) must be reduced, but the operation is troublesome.

The present invention has been made in view of the above-mentioned problems in the conventional table, and has been developed in accordance with the sitting posture of the worker.
It is an object of the present invention to provide a table having a movable top plate that can always obtain an optimal working state by moving the top plate purposefully.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) The base of the horizontal top support is rotatably supported on the support by a vertical main axis, and the top is supported by a vertical sub-axis at an appropriate position on the top surface of the top support. .

(2) In the above item (1), the support is a column erected on a support leg, and the base of the top plate support is rotatably supported on the top of the column.

(3) In the above item (1) or (2), one side edge of the top plate in the left-right direction is disposed between a vertical main axis and a vertical sub-axis, and And an auxiliary top which has a concave side edge complementary to the side edge of the top plate at the base of the top support, and whose upper surface is aligned with the upper surface of the top plate. A plate is provided.

(4) In any one of the above items (1) to (3), the first restricting means for restricting the rotation of the top support relative to the support within a predetermined range around the vertical main axis. And second restricting means for restricting the rotation of the top plate with respect to the top plate support within a predetermined range around the vertical sub-axis.

(5) In any one of the above items (1) to (4), the top plate support is supported by a height adjusting means provided between the support and the top plate support so that the height can be adjusted. .

(6) In the above item (5), the vertical main shaft and the vertical adjusting means are vertically supported by a column erected on a support leg so as to be rotatable in the horizontal direction and slidable in the vertical direction. As a gas spring which can expand and contract in the direction, the upper end of the cylinder of the gas spring is fixed to the base of the top plate support.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In the following description, the lower side of FIG. 2 and the left side of FIG. 6 are referred to as “front”, and the upper side of FIG. 2 and the right side of FIG.

(1) is a cylindrical column as a supporter erected at the center of one side of an H-shaped support leg (2) in a plan view, and has a vertical main shaft and vertical adjustment means inside. Cylinder (3) in a gas spring (3)
a) is fitted via a bush (4) so as to be rotatable in the horizontal direction and slidable in the vertical direction. Prop (1)
Before and after the outer peripheral surface of the lock screw (5), set screw
(6) is fixed.

The gas spring (3) is a known one in which a piston rod (3b) is slidably inserted into a cylinder (3a).
(3b) extends in the longitudinal direction, and when the push of the lock plug (3c) is released, the piston rod (3b) is locked at an arbitrary expansion / contraction position. The lower end of the piston rod (3b) is fixed to a block (7) fixed to the lower inside of the column (1).

(8) is a top plate support, which is formed by bending a pipe in a horizontal oblong shape in a plan view and joining the free ends to each other by welding or the like at the inner left end portion and the center portion of a frame (9). Each of the first support plate (10) and the second support plate (11) is joined by welding or the like, and a cylindrical boss (10a) fixed substantially at the center of the first support plate (10) is formed. By firmly fitting the gas spring (3) on the upper part of the cylinder (3a), the gas spring (3) can be turned horizontally above the support (1) and the height can be adjusted by expansion and contraction of the gas spring (3). Supported.

As shown by a solid line in FIG. 2, the rotation range of the top plate support 8 is within a predetermined range in a clockwise direction and a counterclockwise direction from a neutral position in which the longitudinal direction is in the left-right direction. In order to be able to rotate, it is regulated by first regulating means described later.

(12) is a cylindrical cover having a required length in the vertical direction, which is externally fitted to the column (1) so as to be vertically movable and rotatable, and has an upper end formed on the first support plate (10). ) Is fixed to a joint piece (10b) fixed to the lower surface of the base plate with a set screw (13) so as to be able to rotate and move up and down integrally with the top plate support (8).

As shown in FIG. 4, a plurality of vertical ridges (12a) are provided on the inner peripheral surface of the cylindrical cover (12) so as to be able to abut on the side ends of the locking pieces (5). I have.

The first regulating means includes a locking piece (5) and a ridge (12).
a) and the cylindrical cover (12) is provided with a top plate support (8)
When the ridge (12a) is rotated by a predetermined angle with the
By contacting the side edge of the top plate support member 8, the amount of rotation of the top plate support member (8) is regulated.

(14) is a top plate (14) having a horizontally-long oblong shape, and a lower surface near the base end is provided with a pivot (15a) as a vertical sub-axis on the upper surface of the second support plate (11). Supported by a rotating disk (15) having the same, and is rotatable around a cylinder (3a) together with a top plate support (8), and is rotatable around a pivot (15a) of the rotating disk (15). It has become.

The side edge (14a) of the base end of the top plate (14) is formed in an arc shape centered on the pivot (15a), between the cylinder (4a) and the pivot (15a).

As shown by the solid line in FIG. 2, the top plate (14) is moved from the neutral position where the longitudinal direction is directed to the left and right within a predetermined range in the clockwise and counterclockwise directions. , And the rotation range is regulated by second regulating means described later.

The turntable (15) is provided with a set screw on the second support plate (11).
A rectangular fixing plate (15b) fixed with (16) and a fixing plate
A movable plate (15c) pivotally supported on the (15b) with a pivot (15a) and fixed to the lower surface of the top plate (14). A suitable bearing (1) is provided between the fixed plate (15b) and the movable plate (15c).
5d) is provided.

The second regulating means includes an arc hole (11a) centered on the pivot (15a) formed in the second support plate (11), and a top plate (1).
4) a stepped pin-shaped stopper pin (14b) projecting from the lower surface of the top plate (14) and capable of being inserted into the arc hole (11a).
With the rotation of the stopper pin, the stopper pin (14b) moves in the arc hole (11a) and comes into contact with one of its edges,
The amount of rotation of the top plate (14) is regulated.

A first support plate on the base side of the top plate support (8)
On top of (10), an auxiliary top plate (17) shaped to cover the frame (9) and the first support plate (10) from above is fixed, and a left side of the top plate (14) is fixed. Right side edge (17a) facing side edge (14a)
Is formed in a concave arc shape complementary to the circular side edge (14a) of the top plate (14), and the upper surface thereof is aligned with the upper surface of the top plate (14), 14) and no step is created.

Since the side edge (17a) of the auxiliary top plate (17) has a concave arc shape complementary to the side edge (14a) of the top plate (14),
The gap between the boundary between (14) and the auxiliary top plate (17) is minimized, so that when the top plate (14) rotates, the side edges do not interfere with each other and always have a good appearance. be able to.

(18) is a mounting hole (17) provided in the auxiliary top plate (17).
b) Push in the push button that protrudes upward, push the lock plug (3c) of the gas spring (3) to allow the gas spring (3) to expand and contract.
4) The vertical position can be adjusted.

The fixed plate (15b) and the movable plate (15c) between the cylinder (3a) and the bush (4), and the rotating plate (15).
An appropriate resistance force is applied between the top and bottom so that the top plate support (8) and the top plate (14) do not rotate unnecessarily.

As shown in FIGS. 5 and 6, the worker (B) working with the top plate (14) in the neutral position shown by the solid line.
Changes the posture from the upright posture (B1) shown by the solid line to the backward tilting posture (B2) shown by the two-dot chain line, and performs work in that posture, the top plate (14) and the top plate support (8) ) Is moved from the neutral position shown by the solid line to the operator (B) side as shown by the two-dot chain line.

That is, as shown in FIG. 2, the top plate support (8) is moved to the cylinder (3) so that the top plate (14) moves backward.
Rotate counterclockwise around a)
When (14) is rotated clockwise about the pivot (15a) (at this time, the top support (8) performs a crank motion), the top support (8) becomes a ridge (12a). Abuts against the side end of the locking piece (5), stops at the position shown by the two-dot chain line, and the top plate (14)
The stopper pin (14b) comes into contact with one end of the arc hole (11a) and stops at a position translated from the neutral position to the rear left as shown by a two-dot chain line.

Further, by pushing the push button (18) to make the gas spring (3) extendable, the top plate (14) is pushed down to an appropriate lowered position as shown by a two-dot chain line in FIG. By releasing the push button (18) and fixing the top plate (14) at that position, the operator (B) can work on the top plate (14) in an optimal state.

In the upright posture (B1), the worker (B) and the top plate
When the distance from the top plate (14) is small, the top plate support (8) is rotated clockwise in FIG.
In contrast to the case shown by the two-dot chain line, the device can be used by being translated forward. In this way, the top plate (14) can be moved to various positions according to the body type and the like of the worker (B).

The present invention is not limited to the above embodiment. For example, the auxiliary top plate (17) may be omitted and the top plate (1) may be omitted.
Only 4) may be provided on the top plate support (8). In this case, it is preferable that the top plate (14) is formed in such a shape that the top plate (8) always covers the entire top plate support (8) from the upper surface in consideration of appearance.

Further, the support may be a bracket fixed to the wall surface or the side of the pile, or the like, and the top plate support (8) may be rotatably supported by the bracket with a vertical main axis.

[0034]

According to the present invention, the following effects can be obtained. (a) According to the first aspect of the present invention, the top board supporter performs a crank motion and the top board moves in parallel, so that the top board is moved according to the posture and physique of the worker sitting on the chair. It can be moved easily and conveniently while sitting down, and an optimal working state can always be obtained.

(B) According to the second aspect of the present invention, the top plate can be freely moved to the work place together with the table, and it is not necessary to move the entire table or the chair when the operator takes off or takes a seat. This is convenient because only the top plate can be easily moved to secure the space required for taking and taking off seats.

(C) According to the third aspect of the present invention, the gap between the top plate and the auxiliary top plate is minimized, and the step between the top plate and the auxiliary top plate is eliminated, so that their surfaces are continuous. It has a good shape, looks good, and can make the work space on the top plate large.

(D) According to the fourth aspect of the invention, the top plate can be reliably stopped in a state where the top plate support is caused to crank and the top plate is moved in parallel, and
It is possible to prevent the top plate support and the top plate from rotating to an unbalanced position and the table from tipping over.

(E) According to the fifth aspect of the invention, the top plate can be vertically adjusted according to the posture of the worker.
A more optimal working state can be obtained.

(F) According to the sixth aspect of the present invention, the gas spring can also serve as the vertical main shaft and the vertical adjusting means, so that the number of parts can be reduced. Since the gas spring is housed in the support, the appearance is good.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a vertical sectional front view taken along the line III-III in FIG. 2;

FIG. 4 is a cross-sectional plan view taken along the line IV-IV in FIG. 3;

FIG. 5 is a plan view showing a use state of the table.

FIG. 6 is a side view of the same use state.

FIG. 7 is a side view showing a use state of a conventional table.

[Explanation of symbols]

 (1) Post (support) (2) Leg (3) Gas spring (vertical main shaft and vertical adjustment means) (3a) Cylinder (3b) Piston rod (3c) Lock plug (4) Bush (5) Locking piece (6) Set screw (7) Block (7a) Concave hole (8) Top plate support (9) Frame (10) First support plate (base) (10a) Boss (10b) Joint piece (11) Second (11a) Circular hole (12) Cylindrical cover (12a) Ridge (13) Set screw (14) Top plate (14a) Side edge (14b) Stopper pin (15) Turntable (15a) Axis (vertical counter shaft) (15b) Fixed plate (15c) Movable plate (15d) Bearing (16) Set screw (17) Auxiliary top plate (17a) Side edge (17b) Mounting hole (18) Push button (A) Chair (B) Worker (C) Backrest

Claims (6)

[Claims] 1. A base of a horizontal top support is rotatably supported on a support with a vertical main axis, and the top is mounted on a suitable upper surface of the top support with a vertical sub-axis. A table provided with a movable top plate that is supported. 2. The supporting body is a support standing upright on a support leg,
The table provided with the movable top plate according to claim 1, wherein a base of the top plate support is rotatably supported on the top of the support. 3. One side edge of the top plate in the left-right direction is
It is arranged between a vertical main axis and a vertical sub-axis to form an arc centered on the vertical sub-axis, and forms a complementary shape with the side edge of the top plate at the base of the top support. The table provided with the movable top plate according to claim 1 or 2, further comprising an auxiliary top plate having a concave side edge and having an upper surface aligned with an upper surface of the top plate. 4. A first restricting means for restricting rotation of the top plate support relative to the support within a predetermined range around a vertical main axis, and a top plate support around a vertical sub-axis. The table provided with the movable top plate according to any one of claims 1 to 3, further comprising a second restricting means for restricting rotation of the top plate with respect to a predetermined range. 5. The movable top plate according to claim 1, wherein the top plate support is supported by a height adjusting means provided between the support and the top plate support so as to be height-adjustable. A table comprising. 6. A vertical main shaft and a vertical adjusting means are vertically extending and contracting gas springs which are housed in a column erected on a support leg so as to be rotatable in the horizontal direction and slidable in the vertical direction. A table provided with a movable top plate according to claim 5, wherein an upper end portion of a cylinder of the gas spring is fixed to a base portion of a top plate support.