JP2000210128A - Table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a table capable of adjusting the height of the top board easily and certainly. SOLUTION: A table capable of adjusting the height of its top board is equipped with a leg arrangement 1, screen plates 4a installed in the over-part of the leg arrangement at a smaller spacing than the width of the table board, and a link mechanism 5 installed between the screen plates and coupling the table board with the leg arrangement in such a way as capable of moving in the vertical direction. The configuration further includes a gas spring 17 installed in the link mechanism and to lift the table board through operation of the link mechanism from the falling to the rising attitude by means of elongation from the contracted condition and an operation lever installed on the table board and releasing the gas spring in locked condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table device capable of adjusting the height of a table plate.

[0002]

2. Description of the Related Art For example, a table device is installed in a dining room. As is well known, a table plate of this type is provided with a table plate at an upper end of a leg, and an article such as tableware is placed on the table plate.

A user sits on a chair and uses the upper surface of the table board. Therefore, the height of the table board is required to be a height that can be easily used by a user sitting on a chair.

In order to meet such a demand, it has been considered to be able to adjust the height of the table plate of the table device. When the height of the table plate is adjusted, for example, the table plate is provided so as to be slidable in the vertical direction with respect to the leg, and is raised to a predetermined height and held by a stopper.

However, according to such a structure,
When raising the table board, it must be lifted against its own weight, so operability may be poor and it may be difficult to use, and when lowering, if you do not support it securely, it may fall suddenly due to its own weight. Therefore, it may be difficult to perform the lowering operation.

[0006]

As described above, in order to make it easier to use the table apparatus, the height of the table plate is adjusted, but in the conventional structure, the height is adjusted. In some cases, the adjustment cannot be performed easily and quickly.

An object of the present invention is to provide a table device capable of adjusting the height of a table plate easily and quickly.

[0008]

According to a first aspect of the present invention, there is provided a table apparatus capable of adjusting the height of a table plate, wherein the leg is provided on an upper portion of the leg at a distance smaller than the width of the table plate. A provided curtain plate, a link mechanism provided between the curtain plates and connecting the table plate to the leg so as to be movable up and down, and a link mechanism provided on the link mechanism and extending the link mechanism from a reduced state so that the link mechanism falls down A gas spring for raising the table plate by operating from the upright position, and operating means provided on the table plate for releasing the locked state of the gas spring by an operation thereof.

According to a second aspect of the present invention, in the first aspect of the present invention, the link mechanisms are provided at one end and the other end in the longitudinal direction of the table plate, respectively, and each link mechanism is driven up and down. Are connected by a connecting rod so as to interlock, and the gas spring is provided with one end connected to one link mechanism and the other end connected to the interlocking rod.

According to a third aspect of the present invention, in the second aspect of the present invention, the link mechanism is provided such that one end thereof is raised and lowered in conjunction with the interlocking rod, and the other end thereof extends along a predetermined direction on the lower surface of the table plate. An undulating link that is movably provided and moves the table plate up and down by being driven up and down via the interlocking rod, and a length dimension is half of the undulating link, and one end is a longitudinal direction of the undulating link. The other end is pivotally attached to the lower surface of the table plate, and the table plate slides along the predetermined direction when the table plate is moved up and down by the undulating link. And a restriction link for blocking.

The invention according to claim 4 is the invention according to claims 1 to 3.
In any one of the inventions, the gas pressure of the gas spring is set to be substantially the same as the force required to lift the table plate.

According to a fifth aspect of the present invention, in the second aspect of the present invention, the curtain plate is provided with a first curtain plate provided at an interval smaller than a width dimension of the table plate and a lower portion of the first curtain plate. A second curtain plate provided at a smaller interval than the first curtain plate, the link mechanism is provided between the first curtain plates, and the interlocking rod is provided between the second curtain plates. It is characterized by having.

According to the first aspect of the present invention, the table plate is connected to the legs so as to be vertically movable by the link mechanism, and the gas spring is connected to the link mechanism. The operation can be easily and reliably performed by utilizing the gas pressure and lowering the table plate against the gas pressure of the gas spring when lowering the table plate. Further, since the link mechanism is provided between the curtain plates, it is possible to prevent a user's leg or the like from hitting the link mechanism when sitting on a chair and using the table device.

According to the second aspect of the present invention, the link mechanism is provided at one end and the other end in the longitudinal direction of the table plate, and these link mechanisms are interlocked by the interlocking rod. The one end and the other end in the direction can be reliably moved up and down in a well-balanced manner.

According to the third aspect of the present invention, when the table plate is moved up and down, the table plate can be moved up and down by the regulating link without sliding in the predetermined direction.

According to the fourth aspect of the present invention, the gas pressure of the gas spring is set to be substantially the same as the force required to lift the table plate. By operating the gas spring, the table plate can be easily pressed with a small force. Can be lifted.

According to the fifth aspect of the present invention, since the curtain plate is composed of the first curtain plate for accommodating the link mechanism and the second curtain plate for accommodating the interlocking rod, the user can use the link at the time of use. It is possible to prevent not only the mechanism but also the interlocking rod from hitting.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

The table apparatus of the present invention shown in FIGS. 1 and 2 has a leg 1. This leg 1 has four legs 2, each of which has an upper connecting lateral member 3a at the upper end.
And the lower connecting horizontal member 3b are connected at predetermined intervals. The pair of upper connecting horizontal members 3a are spaced apart from each other at a predetermined interval, and are connected by a pair of first curtain plates 4a having connecting plates 4c attached to both ends, and the lower connecting horizontal member 3b is connected to the first curtain plate. They are connected by a pair of second curtain plates 4b spaced apart from each other by a distance smaller than 4a.

A link mechanism 5 is provided at a portion between the pair of first curtain plates 4a at one end and the other end in the longitudinal direction, and these link mechanisms 5 are provided above the leg 1 above. The arranged table plate 10 is connected to be vertically movable as described later.

The interval between the pair of first curtain plates 4a is set sufficiently smaller than the width of the table plate 10. In this embodiment, they are provided at intervals of about one third of the width of the table plate 10. First curtain 4a
A first shaft 6 is rotatably supported at one end and the other end in the longitudinal direction.

The link mechanism 5 has a first link 7 and a second link 8 as undulating links, each of which is a set of two links. One end of each of the first and second links 7 and 8 is connected to one first shaft 6, and the other end is connected to a roller 9 at both ends.
The roller shaft 9b to which a is rotatably connected is fixed. The roller 9a is a pair of rails 11 having a U-shaped cross section provided on the lower surface of the table plate 10 along the longitudinal direction.
And is engaged so as to freely roll.

The middle part of the third link 12 is fixed to the middle part of the first shaft 6, and one end of the fourth link 13 is fixed to the middle part of the other first shaft 6. I have. One end and the other end of the interlocking rod 15 are pivotally connected to one end of the third link 12 and the other end of the fourth link 13, respectively. The interlocking rod 15 is housed between the pair of second curtain plates 4b.

A bracket 16 is provided on the upper surface of one end of the interlocking rod 15, and one end of a gas spring 17 is pivotally attached to the bracket 16. The other end of the gas spring 17 is pivotally connected to the other end of the third link 12. That is, the gas spring 17 is
Is provided on the upper surface side.

In the middle part of the pair of second links 8,
One end of a fifth link 18 serving as a restriction link is pivotally connected. The fifth link 18 has half the length of the second link 8 and one end of a connecting shaft 19 is pivotally connected to the other end. The other end of the connecting shaft 19 is connected to the rail 1 provided on the lower surface of the table plate 10.
It is pivoted to 1. The center of the connecting shaft 19 is located on the same vertical line as the center of the first shaft 6 as shown by a vertical line V in FIG.

Therefore, the fifth link 18 restricts the table plate 10 from sliding freely by the engagement between the rail 11 and the roller 9a via the connecting shaft 19, and the second link 18 When the arm 8 rotates in the upright direction as described later, the arm 8 rotates in a direction opposite to the second link 8. That is, the fifth link 18
When the table board 10 is moved up and down, the table board 10 is prevented from moving along its longitudinal direction (longitudinal direction of the rail 11), so that it can be moved up and down vertically.

As shown in FIG. 2, a substantially L-shaped operating lever 21 as operating means for releasing the locked state of the gas spring 17 is provided at one longitudinal end of the lower surface of the table plate 10. The part is pivoted. A spring 22 is stretched between one end of the operation lever 21 and the lower surface of the table plate 10.

One end of the operation lever 21 is connected to one end of an operation wire 23 inserted through a tube (not shown). The other end of the operation wire 23 is connected to an actuator 24 for releasing the locked state of the gas spring 17.

Therefore, if the operation lever 21 is turned in the direction shown by the arrow in FIG. 2 against the restoring force of the spring 22, the operation wire 23 is pulled and the operator 24 is turned. Therefore, the locked state of the gas spring 17 can be released by the actuator 24.

When the locked state of the gas spring 17 is released, the gas spring 17 expands from the contracted state, so that the third link 12 rotates in the upright direction, and one of the first shafts 6 interlocks with it. I do. Thereby, this first
The first link 7 connected to the shaft 6 also rotates from the state shown by the solid line in FIG. 2 in the upright direction as shown by the chain line.

At the same time, since the interlocking rod 15 having one end connected to the third link 12 slides in the direction shown by the arrow in FIG. 2, the fourth link 13 connected to the other end of the interlocking rod 15 Rotate in the upright direction. The fourth link 1 above
Since the other first shaft 6 rotates with the rotation of 3,
The second link 8, one end of which is connected to the first shaft 6, rotates from the solid line in the upright direction as shown by the chain line.

As described above, when the first link 7 of the one link mechanism 5 and the second link 8 of the other link mechanism 5 rotate in the upright direction, the other end of each of the links 7, 8 is provided with a roller. Since the roller 9a provided via the shaft 9b rolls on the rail 11 provided on the lower surface of the table plate 10, the table plate 10 rises from the lowered position shown by the solid line in FIG. 2 to the raised position shown by the chain line. Will be.

At this time, since the rail 11 provided on the table plate 10 and the fifth link 18 provided on the second link 8 are connected, the table plate 10 slides in the longitudinal direction. Is stopped and rises.

The gas pressure of the gas spring 17 is set substantially equal to the force required to raise the table plate 10. Thus, when the gas spring 17 is operated, the gas pressure of the gas spring 17 acts on the table plate 10 as a force for raising the table plate 10, so that the user can lift the table plate 10 with a light force. it can.

According to the above-structured table device, when the gas spring 17 is in a contracted state, the first and second links 7, 8 of the pair of link mechanisms 5 are in a lying state as shown by a solid line in FIG. Therefore, the table plate 10 connected to the link mechanism 5 is at the lowered position as shown by the solid line in FIG.

To raise the table plate 10, the operation wire 26 is pulled by operating the operation lever 26 provided on the lower surface of one end of the table plate 10. As a result, the actuator 24 of the gas spring 17 rotates, and the locked state of the gas spring 17 is released, so that the gas spring 17 is urged from the contracted state to the expansion direction by the pressure of the built-in gas.

When the table plate 10 is lifted in a state where the gas spring 17 is urged in the extension direction, the first link 7 of one of the link mechanisms 5 rises, and the third link 12 moves together therewith. Since the rotation of the third link 12 is transmitted to the second link 8 of the other link mechanism 5 by the interlocking rod 15, the second link together with the first link 7
Link 8 also rotates in the upright direction.

When the table plate 10 is lifted to a predetermined height, when the operator releases the operating lever 21,
Since the gas spring 17 is locked in a predetermined extended state, the table plate 10 is also held immovable up and down at that height.

When the table plate 10 is lifted while the gas spring 17 is operated, the gas pressure of the gas spring 17 acts on the table plate 10 via the pair of link mechanisms 5. In addition, the gas pressure of the gas spring 17 is set substantially equal to the force required to lift the table plate 10.

Therefore, the table plate 10 can be easily lifted by a light force irrespective of its own weight by the urging force of the gas spring 17. In addition, since the pair of link mechanisms 5 are interlocked by the interlocking rods 15, only one end of the table plate 10 can be lifted, and the other end can be lifted in the same state. The height can be adjusted in a horizontal state without any adjustment.

When lowering the table board 10 which has been raised to a predetermined height, the table board 10 is pressed in the lowering direction while the operation lever 21 is operated. Thereby,
Since the gas spring 17 contracts against the urging force of the gas pressure, the first and second links 7, 8 of the pair of link mechanisms 5 rotate from the standing state to the falling direction, and the table plate 10 descends. Will do.

That is, when the table plate 10 is lowered, even if the lock state of the gas spring 17 is released by the operating lever 26, the table plate 10 is not lowered unless the table plate 10 is pressed against the urging force of the gas spring 17. Therefore, the table plate 10 does not suddenly descend due to its own weight.

The operating lever 24 is provided on the lower surface of the table 10. Therefore, when the table plate 10 is lifted or lowered, one end of the table plate 10 can be lifted or pushed down with one hand operating the operation lever 24, and the other end can be lifted or pushed down with the other hand. The operability of the vertical movement of the table plate 10 can also be improved.

The pair of link mechanisms 5 are provided between a pair of first curtain plates 4a provided on the leg 1, and an interlocking rod 15 for interlocking the pair of link mechanisms is provided with a pair of second
Is provided between the curtain plates 4b.

Therefore, when the user uses the table device while sitting on a chair (not shown), the first curtain plate 4a is used.
The second curtain plate 4b prevents the knee portion of the user from hitting the link mechanism 5 or the interlocking rod 15.

Each pair of first curtain plate 4a and second curtain plate 4b
Is set sufficiently smaller than the width of the table 10. Therefore, when using the table device, even if the user pulls the chair sufficiently when sitting down, the knees rarely hit the curtain plates 4a and 4b.

Further, the link mechanism 5 and the interlocking rod 15 are covered and hidden by the curtain plates 4a and 4b, and are not exposed to the outside, so that the appearance of the table device is not deteriorated.

A gas spring 17 for operating the link mechanism 5 is provided on the interlocking rod 15. Therefore, it is not necessary to secure a dedicated installation space for installing the gas spring 17, so that the gas spring 17 can be prevented from protruding greatly below the table plate 10.

[0049]

According to the first aspect of the present invention, the table plate is connected to the legs so as to be vertically movable by the link mechanism, and the gas spring is connected to the link mechanism. Therefore, the table plate can be easily moved up and down using the gas pressure of the gas spring, and when the table plate is lowered, the table plate may be pushed down against the gas pressure of the gas spring. Can be easily and reliably performed.

Further, since the operation means for operating the gas spring is provided on the table plate, the table plate can be moved up and down while operating the operation means, so that the operability can be improved.

Further, since the link mechanism is provided between the curtain plates, it is possible to prevent the legs and the like of the user from hitting the link mechanism when using the table device while sitting on a chair. In addition, since the link mechanism can be prevented from being exposed to the outside, the appearance can be improved.

According to the second aspect of the present invention, the link mechanisms are provided at one end and the other end in the longitudinal direction of the table plate, and these link mechanisms are interlocked by the interlocking rod. Therefore, one end and the other end in the longitudinal direction of the table plate can be moved up and down in a well-balanced manner, so that the horizontal state of the table plate can be reliably maintained.

The gas spring for raising and lowering the link mechanism can be provided on the connecting rod by connecting one end to the link mechanism and providing the other end to the interlocking rod. In addition, there is no possibility that the gas spring protrudes greatly below the table plate and gets in the way.

According to the third aspect of the present invention, when the table plate is moved up and down, the table plate can be moved up and down by the regulating link without sliding the table plate in a predetermined direction.

Therefore, when the table board is moved up and down, it can be moved up and down along the vertical direction and does not move in the direction intersecting the vertical direction. Even so, the table plate can be moved up and down without fail.

According to the fourth aspect of the present invention, the gas pressure of the gas spring is set substantially equal to the force required to lift the table plate. Therefore, the table plate can be easily lifted with a light force by operating the gas spring. According to the invention of claim 5, the curtain plate is constituted by the first curtain plate in which the link mechanism is accommodated and the second curtain plate in which the interlocking rod is accommodated. Therefore, it is possible to prevent the user from hitting not only the link mechanism but also the interlocking rod at the time of use, and it is possible to prevent the link mechanism and the interlocking rod from being exposed to the outside and causing a reduction in appearance.

[Brief description of the drawings]

FIG. 1 is a perspective view of a table apparatus according to an embodiment of the present invention, from which a table plate is removed.

FIG. 2 is a front view of the same.

FIG. 3 is a plan view showing the table plate by a chain line.

FIG. 4 is a side view of the table device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Leg 4a ... 1st curtain 4b ... 2nd curtain 5 ... Link mechanism 7 ... 1st link 8 ... 2nd link 9a ... Roller 10 ... Table board 15 ... Interlocking rod 17 ... Gas spring 24 … Operation lever (operation means)

Claims (5)

[Claims] 1. A table device capable of adjusting the height of a table plate, comprising: a leg; a curtain provided above the leg at a distance smaller than the width of the table; A link mechanism provided to connect the table plate to the leg so as to be vertically movable; and a link mechanism provided in the link mechanism extending from a contracted state to actuate the link mechanism from a lying state to an upright state, thereby causing the table plate to move. A table apparatus comprising: a gas spring to be raised; and operating means provided on the table plate to release a locked state of the gas spring by an operation thereof. 2. The link mechanism is provided at one end and the other end in the longitudinal direction of the table plate, and each link mechanism is connected by a connecting rod such that the up-and-down drive is interlocked. The table apparatus according to claim 1, wherein the gas spring is provided with one end connected to one link mechanism and the other end connected to the interlocking rod. 3. The link mechanism according to claim 1, wherein one end of the link mechanism is provided so as to move up and down in conjunction with the interlocking rod, and the other end is provided movably along a predetermined direction on the lower surface of the table plate. A link for raising and lowering the table plate by being driven, a length dimension is half of the link for raising and lowering, one end is pivotally connected to a longitudinal middle portion of the link for raising and lowering, and the other end is the table plate. Pivoted on the underside of
The table apparatus according to claim 2, further comprising a regulating link for preventing the table plate from sliding along the predetermined direction when the table plate is moved up and down by the undulating link. 4. The table apparatus according to claim 1, wherein a gas pressure of the gas spring is set to be substantially equal to a force required to lift the table plate. 5. The first curtain plate provided at intervals smaller than the width dimension of the table plate, and the first curtain plate provided below the first curtain plate at a smaller interval than the first curtain plate. 3. The apparatus according to claim 2, further comprising a second curtain plate, wherein the link mechanism is provided between the first curtain plates, and the interlocking rod is provided between the second curtain plates. Table equipment.