JPH0799234B2 - Furniture with columns - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to furniture including columns such as a table and a hanger stand.

[Conventional technology]

Conventionally, as one type of furniture equipped with columns, one column is erected on the center of a disk-shaped or other base, and this column is provided with, for example, a tabletop for a table or a hanger suspension arm for a hanger stand. The attached one is known.

In this case, as a means for connecting the pillar and the base with screws,
A base mounting seat is fixed to the lower end of the support, and the base mounting seat and the base are connected by a single screw on the suspension line of the support (= center of the base).

As this screw connection means, it is possible to make the base mounting seat sufficiently large and screw it to the base at a plurality of places so as to surround the column, but this makes the screw connection part exposed to the outside and the appearance is remarkable. It is not actually done because it is damaged.

[Problems to be Solved by the Invention]

However, according to the conventional furniture configuration in which the support member such as the top plate and the hanger suspension arm is attached to one pillar as described above,
It had the following drawbacks.

Taking a table as an example, I. As a general table configuration, one top plate is attached to the upper end of the column, so for example, like an OA table, a display device and a keyboard are placed with a step above and below. Can not meet the desire to support.

It is possible to attach the auxiliary top plate to the support column below the top plate, but this makes the display device and the keyboard misaligned back and forth and cannot be supported, and thus the usability becomes very poor.

In the II.OA table, there is a strong demand to freely adjust the height position of the display device or the keyboard according to the physical constitution of the user. In this case, it is possible to incorporate an elevating mechanism into the column to allow height adjustment of the column, but this height adjustment can be done only for both the display device and the keyboard, and these can be adjusted individually. I can't adjust.

Such defects were more or less common to base-type furniture.

By the way, as a means for solving such a problem, it is conceivable to erect two columns on the base at intervals. However, in this case, since the connection point between the base and the support becomes two, the structure becomes complicated and the assembly becomes troublesome. In addition, the base becomes large in size, which is very disadvantageous in terms of weight and cost. Therefore, it is not suitable for practical use.

On the other hand, as another problem, since the base mounting seat of the column and the base are connected with one screw, if a large rotational moment is applied to the top plate etc., the screw will loosen and the column will rotate easily. There was a drawback that it would end up.

Therefore, the present invention, while being a base type, allows a support member such as a top plate to be independently attached to the front and rear with respect to the column, and in a state where the lifting mechanism is incorporated into the column, the height can be adjusted separately. (EN) Provided is a piece of furniture that can be attached and that can surely prevent the pillar from rotating.

[Means for Solving the Problems]

According to the invention of claim 1, in a furniture in which a base for making the pillar stand on the floor surface is attached to the lower end of the pillar, the pillar has a front pillar, a rear pillar, and both pillars at front and rear intervals. It is composed of an integral connecting pipe part and a base mounting pipe mounted downward on the lower surface of the connecting pipe part, and a base mounting seat is fixed to the inside of the base mounting pipe. Is a screw hole, and a screw through hole is provided in the base on both front and rear sides of the center of the base mounting pipe, and two base mounting screws are screwed into the screw hole through the screw through hole. Is attached to the lower end of the base attachment pipe, and support members such as a top plate are attached to the front pillar and the rear pillar of the support column.

According to a second aspect of the present invention, in the configuration of the first aspect, the front column and the rear column of the support column are respectively attached to the pipe body and the cylinder, and the cylinder is movable with respect to the pipe body. And a first detent mechanism for preventing rotation of the cylinder with respect to the pipe, and a support for the cylinder between the cylinder and the support member. A second detent mechanism for preventing the rotation of the member is provided, and the first detent mechanism is a recess member having a vertical guide groove on either the outer surface of the cylinder of the gas spring or the inner surface of the tubular body. On the other hand, a convex member that engages with the guide groove through the entire expansion and contraction stroke of the gas spring is provided, and the second detent mechanism is mounted on the upper end of the cylinder. A tapered taper shaft, a taper pipe tightly fitted to the taper shaft on the lower surface of the support member, and a roll pin penetrating in the radial direction of the taper pipe on the upper part of the taper pipe, while the taper shaft The upper end surface of the roller has a curved surface corresponding to the outer surface of the roll pin, and is provided with an engaging groove into which the roll pin fits in a state where the tapered shaft and the tapered tube are closely fitted.

According to a third aspect of the present invention, in the configuration of the second aspect, the ventilation passage that communicates the inside and the outside of the pipe body is formed with a route that extends over the pipe body, the connecting pipe portion, the base mounting pipe, and the base. .

[Action]

According to the structure of claim 1, since substantially two columns, that is, a front column and a rear column, are provided, and support members such as a top plate are separately attached to them, the top plate is attached to both the columns in particular. With this configuration, the display device and the keyboard can be supported by being displaced in the front-rear direction, and the heights of the both can be adjusted individually, which is very convenient.

Also, since the base mounting seat and the base are connected with two screws and at both the front and rear sides of the center of the column, which is the direction in which the main load is applied, rotation of the column is reliably prevented and the load bearing force is Will be high.

Further, the inclination of the column in the front-rear direction can be arbitrarily adjusted at the front and rear screw connection portions.

On the other hand, according to the structure of claim 2, since the gas spring is used as the lifting mechanism for the front pillar and the rear pillar, the gear type lifting mechanism or the screw shaft and nut by the rack and pinion that has been conventionally used for this type of furniture. The lifting operation can be performed more easily than the screw type lifting mechanism.

In this case, if a gas spring is used as the lifting mechanism,
The following problems peculiar to gas springs occur.

I. Since the movable column cylinder and the fixed column rod are relatively rotatable, the cylinder rotates with respect to the tubular body.

B. Since the gas spring is filled with nitrogen gas and oil and is provided with a seal member which is weak against heat, welding means cannot be used as a connecting means for connecting the cylinder and a supporting member such as a top plate. Therefore, since the receiving member of the supporting member and the upper end of the cylinder cannot be directly welded, a possible means is to fit and connect the round shaft portion of the upper end of the cylinder and the tubular body on the receiving member side. Causes the support member to rotate.

Therefore, as it is, it becomes a problem in the case of furniture which is inconvenient when the support member rotates.

In this respect, according to the configuration of claim 2, the rotation of the cylinder with respect to the tubular body of the support column and the rotation of the support member such as the top plate with respect to the cylinder can be prevented by the first and second detent mechanisms, so that the practical value is increased. be able to.

Further, according to the third aspect of the invention, when the gas spring is expanded and contracted, air is allowed to flow in and out between the inside and outside of the pipe of the strut through the ventilation passage, so expansion and contraction resistance can be small. For this reason,
Height adjustment operation becomes easier.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

In this embodiment, the OA table is applied as an example.

A is a pillar, A1 is a front pillar constituting the pillar A, and A2 is a rear pillar.

The front pillar A1 and the rear pillar A2 are not provided by mounting the gas springs S1 and S2 with a lock mechanism as an elevating mechanism to fixed pipe bodies (hereinafter, referred to as front pipe and rear pipe) 1 and 2 made of round pipe material, respectively. It is configured so that it can be expanded and contracted in stages (height adjustment).
A front top plate U1 on which the keyboard B is placed is attached to the upper end of the front gas spring S1, and a rear top plate U2 on which the display device C such as a CRT is placed is attached to the upper end of the rear gas spring S2.

A connecting pipe 3 is attached between the lower ends of the front pipe 1 and the rear pipe 2 by so-called stop welding.
2 are connected together in a parallel state with front and rear spaces.

A base mounting pipe 4 is fixed to the lower surface of the central portion of the connecting pipe 3 downward, and a disk-shaped base 5 that makes the pillar A stand on the floor surface is attached to the lower end of the base mounting pipe 4.

In this way, the OA table is a base type, which is equipped with substantially two front and rear columns, a front column A1 and a rear column A2, and separate top plates U1 and U2 attached to these columns A1 and A2, respectively. Has been done.

Therefore, according to this OA table, the display device C
The keyboard B and the keyboard B can be supported in a state in which they are most easily used and are displaced from each other in the front-rear direction, and with a step having an arbitrary size in the vertical direction. Further, both of them can be individually adjusted to the optimum height position according to the physique of the user by the front and rear gas springs S1 and S2.

The base mounting pipe 4 and the base 5 are connected as follows.

The base 5 includes a base body 6 formed in a disk shape with a steel plate and the like, and a base reinforcing plate 7 fixed to the upper surface of the body 6.
And a weight 8 attached to the lower surface of the main body 6 and a plurality of ashtasters 9 attached to the weight 8.

The base 5 is provided with screw-through holes 10, 10 on both front and rear sides of the center of the base so as to straddle the base reinforcing plate 7, the main body 6 and the weight 8.

On the other hand, a base mounting seat 11 is horizontally fixed to the inside of the lower portion of the base mounting pipe 4. The base mounting seat 11 is provided with screw holes 12 and 12 on both front and rear sides of the pipe center, and two screws (bolts) 13 and 13 are inserted through the screw through holes 10 and 10 of the base 5. The base mounting seat 11 (base mounting pipe 4) and the base 5 are connected by being screwed into the screw holes 12, 12 from the lower side of the base.

In this way, the pillar A and the base 5 are connected to each other by the two screws 13,13.
Therefore, even if a large rotational force about the center of the support column is applied to the support column A, the rotation of the support column A can be reliably prevented by the two screw connection portions.

Moreover, since the pillar A and the base 5 are screw-connected to each other on the front and rear sides of the center of the pillar A, which is the direction in which the main load is applied in this table, the load supporting force of this connecting portion is high.

Also, since the screws are connected at the two front and rear locations, both side screws 13,1
By adjusting the number of the washers 14 and 14 of 3, etc., the inclination of the column in the front-back direction can be arbitrarily adjusted at the screw connection portion.

As shown in FIG. 5, the base mounting seat 11 is formed in a shape in which the left and right sides of the disc are cut, and the base mounting seat 11 is connected between the cut surface of the mounting seat 11 and the inner surface of the base mounting pipe 4. Pores 16, 16 are formed. In addition, as shown in FIGS. 4 and 5, the pipes 4 are connected to the connecting pipes 3 and the bases 5 of the support column A at positions facing the base mounting pipes 4, respectively.
Ventilation holes 15 and 17 communicating with the inside are provided. These ventilation holes 15, 16 and 17 form a ventilation path for communicating the inside of the front pipe 1 and the rear pipe 2 of the support A to the outside via the connecting pipe 3, the base mounting pipe 4 and the base 5.

Next, the ascending / descending structure of the front pillar A1 and the rear pillar A2 of the pillar will be described in detail with reference to FIGS. 4 and 6, 7.

Gas springs S1 and S2 of both columns A1 and A2 are
Is in the lower side (fixed side) and the cylinder 19 is in the upper side (movable side), and is fitted into the front pipe 1 and the rear pipe 2, and the lower end of the rod 18 is attached to the lower portion of the front pipe 1 and the rear pipe 2. Receiving member 20
Is fixed through. Therefore, this gas spring
When S1 and S2 are operated, the cylinder 19 moves up and down so that the front pillar A1 and the rear pillar A2 expand and contract.

The rod receiving member 20 is attached to the rod 18 by a step portion 18a at the lower end of the rod and a stop pin 21, and the front pipe 1 and the rear pipe 2 are attached.
In the state of being inserted into the inside, it is fixed by a screw 22 from the outer surface side of the same pipe. Reference numeral 23 denotes a cushion member fitted on the rod 18 on the upper surface of the rod receiving member 20.

A valve (not shown) that controls pressurization (extension) and pressure release (reduction) of the gas springs S1 and S2 is provided in the upper part of the cylinder. And the operating lever that operates this valve
24, 24 are laterally attached along the lower surface of the top plate from the cylinder upper part of the gas springs S1, S2 so as to be located near the widthwise ends of the top plates U1, U2.

In this way, when lowering the heights of the top plates U1, U2 by holding them in the width direction, the operation lever 24 can be simultaneously grasped and pulled up (pressure release operation). Therefore, even one person can easily perform the operation of lowering the top plate.

In this way, by using the gas springs S1 and S2 with the lock mechanism as the lifting mechanism, compared with the conventional gear type or screw type lifting mechanism, only the pushing operation of the operation lever 24 at the time of ascending and the operation at the time of descending are performed. Lever 24
By pulling up and pressing down the top plates U1 and U2 in a state where the pressure is released, it is possible to easily perform stepless height adjustment of the top plates U1 and U2.

When the gas springs S1 and S2 are expanded and contracted, air is supplied / exhausted between the inside and outside of the front pipe 1 and the rear pipe 2 by the above-mentioned ventilation passage. Therefore, the resistance of the expansion and contraction operations of the gas springs S1 and S2 can be small, and the top plate height adjusting operation can be smoothly performed. Moreover, since the ventilation passage is formed through the connecting pipe 3, the base mounting pipe 4, and the base 5, dust and water are not contained in the pipe as in the case where the ventilation holes are directly provided in the side walls of the front pipe 1 and the rear pipe 2. There is no risk of invasion of the etc. It is also aesthetically pleasing.

By the way, with only the above configuration, the cylinders 19 and 19 of the gas springs S1 and S2 rotate relative to the front tube 1 and the rear tube 2, and the top plates U1 and U2 rotate relative to the cylinders 19 and 19. Therefore, the top plates U1 and U2 may rotate during use.

Therefore, the following detent mechanism is provided.

(I) Anti-rotation mechanism of the cylinder 19 with respect to the front pipe 1 and the rear pipe 2 (first anti-rotation mechanism, see FIGS. 4 and 6) The front pipe 1 and the rear pipe 2 each have a vertically convex member on the inner surface. The strip-shaped guide plate 25 is fixed. In this guide plate 25, fixing pins 25a projecting from the upper and lower portions of the plate 25 are inserted into holes 26 provided in the peripheral walls of the front pipe 1 and the rear pipe 2 from the inside of the pipe and welded. It is fixed to both pipes 1 and 2 by.

On the other hand, in the gas springs S1 and S2, a cylindrical guide cylinder 27 as a recess member is fixed to the lower end of the cylinder 19. A guide groove (concave groove) 27a is provided on the outer peripheral surface of the guide cylinder 27 in the vertical direction, and a guide plate 25 is relatively slidably engaged in the guide groove 27a.
As a result, rotation of the cylinders 19 and 19 with respect to the front pipe 1 and the rear pipe 2 is prevented through the entire expansion and contraction strokes of the gas springs S1 and S2.

At the upper ends of the front pipe 1 and the rear pipe 2, there are cylinders, respectively.
A cylindrical cylinder guide member 28, through which 19 passes through on the center line of the pipe, is fitted and fixed. This cylinder guide member 28
Allows the cylinder 19 to be held vertically and at the same time
The engaged state between the guide plate 25 and the guide cylinder 27 is reliably maintained.

(II) Anti-rotation mechanism for top plates U1 and U2 with respect to cylinders 19 and 19 (second anti-rotation mechanism, see Figs. 4 and 7) At the upper end of cylinder 19, the outer peripheral surface has a narrow taper on the outer periphery. While the taper shaft 29 is integrally provided, the top plate U
1, a taper pipe 31 having an inner peripheral surface with a Morse taper on which the taper shaft 29 is tightly fitted is fixed to the central portion of the lower surface of the top plate fitting 30 fixed to the lower surface of U2. The basic detent action of the top plates U1 and U2 against is obtained.

However, only the connection structure by this taper fitting is enough for the top plate.
If a large rotational moment is applied to the U1 and U2 sides, it cannot be sufficiently countered.

Therefore, a roll pin (so-called C pin) 32 is attached to the upper end portion of the taper pipe 31 in a state of penetrating in the radial direction through the center of the pipe, while the taper shaft 29 and the taper pipe 31 are attached to the upper end surface of the taper shaft 29. An engagement groove 33 with which the roll pin 32 is engaged in a tightly fitted state is provided in the radial direction through the coaxial center.

The engagement groove 33 has a curved surface corresponding to the outer surface of the roll pin 32, and is formed with a depth dimension equal to or larger than the radius dimension of the pin 32 so that the roll pin 32 is not disengaged by the top plate rotating force.

Due to the engagement between the roll pin 32 and the engagement groove 33, even if a large rotation moment is applied to the top plate side, the taper shaft
It is possible to effectively prevent rotation of the taper pipe 31 (top plate U1, U2) with respect to 29 (cylinder 19).

Further, since the roll pin 32 is once held by the spring force of the roll pin 32, it is securely held at the attachment position (it does not come off even if an external force is applied), so that the original rotation preventing function is highly reliable.

Further, at the time of assembly, when the taper shaft 29 is fitted into the taper pipe 31, even if the planar positional relationship between the roll pin 32 and the engagement groove 33 is initially slightly distorted, the curved surface of the roll pin 32 causes the pin 32 to move. Since the guiding action that guides to the engagement groove 33 works,
Easy to assemble.

In this way, the top plate is provided by both the first and second detent mechanisms.
The rotation of U1 and U2 can be minimized to a slight amount. Therefore, during use, the top plates U1 and U2 rotate due to an external force and become unusable, and the rotation of the top plates U1 and U2 places them on top of each other, or between devices, or one top and the other. It is possible to prevent the installed devices from colliding with each other.

Other Embodiments (1) In the above embodiments, the OA table is applied as an example, but the present invention can be widely applied to a hanger stand and other base type furniture provided with columns.

(2) It is not always necessary to unify the front pipe 1, the rear pipe 2, and the connecting pipe 3 with the round pipe material as in the above-mentioned embodiment, and all or some of them may be square pipes or cross-section lengths. It may be used as a circular pipe, or a single pipe material may be bent to integrally form a front pipe and a connecting pipe portion, and a connecting pipe portion and a rear pipe in a perpendicular direction. .

(3) In the above-described embodiment, as the first detent mechanism, the guide cylinder 27 with the guide groove 27a as the recessed material is provided at the lower end portion of the cylinder 19 of the gas springs S1, S2, and the inner surface of the tubular body 1, 2 is provided with the convex member. Although the long guide plates 25 are provided above and below, respectively, the vertically long concave member may be provided on the cylinder 19 side and the convex member may be partially provided on the tube bodies 1 and 2. Alternatively, a convex member may be provided on the cylinder 19 side, and a concave member may be provided on the tube bodies 1 and 2 sides.

(4) In the above embodiment, gas springs S1 and S2 are attached to the front pipe 1 and the rear pipe 2 to form the expandable and contractible front pillar A1 and rear pillar A2, whereby the top plate height can be adjusted. However, according to the first aspect of the invention, the front tube 1 and the rear tube 2 are directly used as the front pillar A1 and the rear pillar A2 without attaching a height adjusting mechanism, and a supporting member such as a top plate is directly attached to them. Good.

〔The invention's effect〕

As described above, according to the present invention, since substantially two columns, that is, a front column and a rear column, are provided, and a support member such as a top plate is separately attached to these columns, the top plate is attached to both columns. If the table is configured by using the table, the display device and the keyboard can be supported by being displaced in the front-rear direction, and the heights of the display device and the keyboard can be adjusted individually, which is very convenient.

Also, since the base mounting seat and the base are connected with two screws and at both the front and rear sides of the center of the column, which is the direction in which the main load is applied, rotation of the column is reliably prevented and the load bearing force is Will be high.

Further, the inclination of the column in the front-rear direction can be arbitrarily adjusted at the front and rear screw connection portions.

On the other hand, according to the invention of claim 2, since the gas spring is used as the lifting mechanism for the front pillar and the rear pillar, the gear type lifting mechanism or the screw shaft and nut by the rack and pinion conventionally used for this type of furniture. The lifting operation can be performed more easily than the screw type lifting mechanism.

Further, in connection with the use of the gas spring as the lifting mechanism, the rotation of the cylinder with respect to the tubular body of the support column and the rotation of the support member such as the top plate with respect to the cylinder can be prevented by the first and second both-rotation preventing mechanisms. The practical value can be increased.

Further, according to the invention of claim 3, when the gas spring is expanded and contracted, air is allowed to flow in and out between the inside and outside of the pipe body of the strut through the ventilation passage, so expansion and contraction resistance can be small. For this reason,
The height adjustment operation is performed smoothly.

Moreover, since the ventilation path is formed through the pipe body, the connecting pipe, the base mounting pipe, and the base, there is a risk that dust, water, or the like will enter the pipe as in the case where a ventilation hole is directly provided in the side wall of the pipe body. There is no. It is also aesthetically pleasing.

[Brief description of drawings]

1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a side view of the same, FIG. 3 is a front view thereof, FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG. 3, and FIG. Fig. 4 V-V line, Fig. 6 the same VI-VI line,
FIG. 7 is an enlarged sectional view taken along line VII-VII of FIG. A ... prop, A1 ... front pillar that constitutes the pillar, A2 ... same rear pillar, 1,2 ... pipe body of both pillars, 3 ... connecting pipe (connecting pipe part),
4 …… Base mounting pipe, 5 …… Base, 10,10 …… Screw through hole, 11 …… Base mounting seat, 12,12 …… Screw hole, 13,
13 …… Mounting screws, 15,16,17 …… Ventilation holes that make up the ventilation path, S1, S2 …… Gas springs, 18 …… Gas spring rods, 19 …… Same cylinder, 25 …… First detent Guide plate as a convex member that constitutes the mechanism, 27 ... Guide tube as the concave member, 27a ... Same concave groove, 29 ... Tapered shaft that constitutes the second detent mechanism, 31 ... Same tapered tube, 32
...... Same roll pin, 33 ...... Same engagement groove.

Claims (3)

[Claims] 1. A furniture having a base attached to the lower end of a pillar to make the pillar stand on the floor surface.
A front pillar, a rear pillar, a connecting pipe part that integrally forms both of these pillars at a distance in front and back, and a base mounting pipe that is mounted downward on the lower surface of the connecting pipe part. A base mounting seat is fixed to the inside of the mounting pipe.Screw holes are formed in the base mounting seat, and screw holes are formed in the base on the front and rear sides with the center of the base mounting pipe in between. The base is attached to the lower end of the base mounting pipe by screwing the screw into the screw hole through the screw through hole, and the supporting members such as the top plate are attached to the front and rear columns of the column. Furniture equipped with columns that are characterized by that. 2. A front pillar and a rear pillar of the column are configured to be height-adjustable by a tube body and a gas spring with a locking mechanism attached to the tube body in a state where a cylinder is movable. A first detent mechanism for preventing rotation of the cylinder with respect to the tube body between the cylinder and the tube of the gas spring, and a second detent mechanism for preventing rotation of the support member with respect to the cylinder between the cylinder and the support member. Each of the mechanisms is provided, and the first detent mechanism is a recess member having a vertical guide groove on one of the outer surface of the cylinder of the gas spring and the inner surface of the tube body, and on the other side through the entire expansion / contraction stroke of the gas spring. The convex member engaging with the guide groove is provided, and the second member is formed.
The anti-rotation mechanism is provided with a taper shaft having an upper recess at the upper end of the cylinder and a taper pipe tightly fitted to the taper shaft on the lower surface of the support member, and the taper pipe penetrates in the upper part of the taper pipe in the radial direction. While a roll pin is provided,
The upper end surface of the taper shaft has a curved surface corresponding to the outer surface of the roll pin, and is provided with an engagement groove into which the roll pin fits when the taper shaft and the taper tube are tightly fitted. The furniture provided with the pillar according to claim 1. 3. A support column according to claim 2, wherein a ventilation path for communicating the inside and the outside of the pipe body is formed by a path extending over the pipe body, the connecting pipe portion, the base mounting pipe, and the base. Furnished furniture.