JPS5855788A - Supervisor desk - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a super-by-day desk having a top section provided with a desk surface and the like, and the top section having at least one leg of adjustable length. Desks of this type are used, for example, in the control of power generation units and industrial processing plants, and are typically cabinets housing electrical appliances that communicate between, for example, a keyboard placed on or within the desk surface and a computer. It incorporates.

Such supervisory day desks are often staffed on a rotating basis 24 hours a day. Therefore, the operating surface of the desk can be raised and lowered, making it easy to accommodate the various body sizes of operators sitting facing the desk. It is desirable that the configuration be such that 111 adjustments can be made.

Desks according to the invention are often used in supervisor cabins for monitoring factories and the like. In such cases, it is required that the operator have a good view of the rear edge of the desk and be able to directly observe the manufacturing process within the factory from the cabin.

It is well known to construct supervisor desks with variable length vertical legs so that the vertical height of the desk surface can be adjusted for different operators.

However, designs that allow the desk surface to move only vertically provide sufficient leg room for tall operators and a good view of the rear edge of the desk for shorter operators on the same desk. Achieving both is difficult. Particularly for reasons of space, the desk cabinet rests above the floor below the rear edge of the desktop section and is secured to the desk stand section. If the horizontal dimension between the cabinet (or terminal section) and the front edge of the desk surface is adjusted to the length of a tall person's legs, a short person may Gives poor visibility.

One of the objects of the invention is to obtain a supervisory day desk of the above-mentioned type that is ergonomically adapted to the operator with regard to desk surface height, leg space and visibility to the rear edge of the desk.

The supervisor desk provided in accordance with the present invention includes a top section having a leading edge and a stand section having at least one leg of adjustable length, the top section having a height relative to the stand section. The at least one leg is supported upwardly on the legs such that the leading edge of the top section moves forward relative to the stand section as the length of the at least one leg increases. It is characterized by being inclined forward with respect to the vertical plane.

The supervisor desk shown in Figures 1 and 2 is
It comprises a top section 1 with a support frame 2, a desktop 3, two leg units (4a, 4b) placed at each end of the desk and a cabinet arrangement or terminal section 5 placed between the leg units. . Each leg unit has a foot 6 and an adjustable leg 7, the length of which can be varied so that the top section 1 can be set at different heights above the foot 6. FIG. 1 shows the top section 1 both in the lower position (solid lines) and in the upper position (dashed lines and dashed reference numbers).

The terminal section can be configured into a cabinet containing appliances intended for use by an operator seated at a desk.

Each adjustable leg 7 is a respective leg unit) 4a.

4bK is fixed and tilted at an angle α with respect to the vertical plane. Preferably, the angle α is a minimum of 15" and a maximum of 75°. Across all the illustrated embodiments, the angle α is 45°, which provides optimal ergonomic operating conditions. However, α angles in the range of 35° to 50° can also be used and are a preferred range for α.A desk constructed according to the invention allows for two changes in shim-to-shim engineering dimensions with a single adjustment movement. This results in a modified desktop height and a modified available leg space in front of the terminal section 5. At the same time, the viewing angle as well as the accessibility of the units located on the desk can be made flexible according to the requirements of the operator. can be changed to

The terminal section 5 of the first embodiment of the supervisor's desk shown in FIGS. 1 and 2 has a base unit 51, each side 52, 53 and 54 of which is comprised of a plurality of easily removable panels. There is. Such a design allows the terminal section to be easily stretched and easily cleaned. If necessary, the depth of the front and rear panels 52,54 can be made relatively large to provide space for equipment requiring large dimensions in that direction. An example of such a configuration is shown in FIG. 1, in which the front panel 52 projects forward of the stand section 4. The upper panel 53 of the terminal section forms an extension of the terminal section and may, for example, be another display section of a desk.

The adjustable legs 7 of the desk, which can be seen in detail in FIGS. 6-7, have two cylindrical leg sections, an outer leg 8 and an inner leg 9, both of rectangular shape. It has a cross section of The inner leg is telescopically housed within the outer leg. Figure 3 shows the lower end of the inner leg at its upper extreme position C.
(dotted line and dashed reference numbers) and in the lower extreme position (solid line). Five support rollers 10, 11 and 12 are used to guide the inner leg inside the outer leg, rollers 10 and 11 are journalled on the outer leg and roller 12 is mounted inside the inner leg. The bearing is mounted on the shaft. The rollers 11 are adjustable to set the relative lateral play between the legs.

The construction of these legs and the manner in which they engage with each other is clearly shown in the drawings of FIGS. 6-7,
I will not explain this further in the main text.

A drive unit for adjusting the height of the desktop includes a geared electric motor 13 that drives a shaft 14 on which a flexible belt 15 is stretched. The belt 15 is fixed to the inner leg 9 by means of a port 21 and its overall length is adapted to the length required when the leg 7 assumes its lower extreme position. The direction of movement of the belt is reversed around the circumference of the deflection roll 16 (which is journalled on a bracket 22 fixed to the outer leg 8), and the deflection roll 17 between the roll 16 and the drive shaft 14 is reversed.
and deflected with a circumference of 1B. The deflection roll 1B is adjustable to compensate for any differences in belt overall length and attachment of the drive belt at either end of the desk. Extension of the leg T is limited by the engagement of the end 20 of the bracket 22 with the stop pan 19 (fixed to the inner leg 9 by a bolt 21). An electrical switch (not shown) is used to shut off the motor powering the drive when members 19/20 engage each other, or this switch
It can be used for 20s and 20s.

The belt 15 may be a synthetic fiber belt or a flexible steel belt, and its relative elongation (linear distortion) under the effective load must be small.

A lip or wire can also be used in place of the belt. Turning rolls 17 and 18 can also be omitted.

By means of the drive device described above, the shive stop can be raised to any position between its upper and lower extreme positions. Lowering of the desktop is accomplished by reversing the direction of rotation of the shaft 14 and utilizing the weight of the top section 1. This drive can be used in conjunction with gas springs, one on each of the inner legs. Such gas springs can be used, for example, to obtain additional lifting force for augmenting mechanical drives. Furthermore,
The lowering of the desktop is facilitated by at least one gas spring acting in the opposite direction on the belt 15 and serving to overcome the initial friction of the inner leg 9 in the outer leg 8.

In lieu of a design that uses a drive belt to raise the desktop as shown in Figures 3 to 7, the supervisory desk can be raised to its upper extreme position by at least one gas spring. A drive belt or the like can then be used to lower the desktop surface to the desired level.

8 and 9 show another embodiment of an adjustable leg 7' for a supervisor's day desk. In this embodiment as well, two cylindrical telescopic legs are used, an outer leg 8 and an inner leg 9, both of which have a y-rectangular cross section.

The upper end of the inner leg 9 is provided with a fastening device 24 that is screwed to the support frame 2, while the lower end of the outer leg 8 is provided with a mounting device for screwing to the stand section 4 and the foot 6. 25 are provided. For guiding the inner leg, two sliding bearing rings 26, 27 made of, for example, tetrafluoroethylene are provided, one bearing 26 is fixed to the inner leg and the other bearing 27 is fixed to the outer leg. Fix it.

The drive device for the adjustable leg in the embodiment of FIGS. 8 and 9 is a purely mechanical device having a drive nut 28 and a rotary drive screw 29.

The drive nut 28 is fixed to the inner leg 9 and the drive screw 29 is driven via a gearing 30 which is fixed to the outer leg 8. The gear device 30 includes, for example, a worm gear driven by an electric motor (not shown) K or a bevel gear connected to a manual operation handle. The necessary driving force can be transmitted to the gearing via the input shaft 31, and the use of a common input shaft for all legs of the desk ensures simultaneous extension or retraction of all legs.

A hydraulic system can also be used in place of the mechanical drive system shown in FIG.
Replace with cylinder device. The hydraulic cylinders in all legs of the desk are then fed pressurized fluid via hoses and valves from a common electric hydraulic pump.

It is also possible to use a simple manual drive for the adjustable legs, using a gas spring to balance the weight of the top section 10 in place of the respective hydraulic piston-cylinder arrangement. The extension is mechanically locked by a specific manual retention device.

FIG. 10 shows an embodiment of a supervisor desk according to the invention, in which the terminal section 5 consists of two small units 5a, 5b; ) 4b and connected to the inside of each leg unit. This embodiment provides a greater amount of space for the operator seated behind the cabinet.

FIG. 11 shows an embodiment having a display panel 33, an operating panel 34 and a writing panel 35 on the top.

FIG. 12 shows another display section 36 mounted on an upwardly adjustable vertical leg 37 of the terminal section 5.
In some embodiments, the height of the display panel on section 36 can be adapted to the selected height of actuation panel 34.

FIG. 13 again shows another display section 36.
One embodiment is shown in which the section 36 is supported by two extension legs 38 mounted on the stand section 4. In this embodiment, the operator can see the display section 36.
A free view of the desk and the items through the gap between the top section 1 and the top section 1 of the desk is provided. An instruction panel 36a of the display section 36 is illuminated by a light source 39.

Alternatives to Spaced Extension Legs 38 1) A completely subdivided section can be provided below the display section 36 with additional display panels 36b, 36C.

! Figure 14 shows an embodiment with a visual display unit (40), which rests on a support leg (41) of adjustable length, pivoted at its lower end on the stand section (4) on the trailing edge of the top section (1). It is pivoted. With such a design, a suitable inclination of the visual display unit for each height position of the section 1 is easily obtained, optimizing the viewing (eg to prevent reflections from light sources).

A cable channel 32 (FIGS. 2 and 10) may be provided between the terminal section 5 and the top section 1 of the desk in each embodiment. FIG. 15 shows the cables placed in these channels and secured to the top section 111 and to the plate 43 which moves passively therewith. This plate 43 has a width equal to the width of the terminal section or a portion thereof. In the terminal section, e.g. rod 45
A cable channel 44 is arranged which is fixed to the. With this pressure, full movement of the adjustable leg from one extreme position to the other only moves the cable 42 relatively little.

The plate 43 as well as the cable are surrounded by a protective housing 46, which can be simply removed during operation. Separately, an easily removable rubber bellow for the protective housing 46 is used to connect the connecting piece on the underside of the top section 1 to the cable 4.
2 and the connecting piece on the terminal section 5 can be accommodated.

The invention is not limited to the desk of the illustrated embodiment, but slight modifications are obviously possible. For example, the terminal section 5 need not be used to house electrical components and can be dedicated as a protective screen for the operator.

[Brief explanation of the drawing]

Fig. 1 is a side view of the first embodiment of the supervisor desk of the present invention, Fig. 2 is a view of the desk of the first embodiment as seen from the rear, and Fig. 3 shows the drive device for the desk of the present invention. An axial cross-sectional view of one embodiment of the adjustable legs provided, FIG. 4 taken along line A of FIG.
- a local sectional view according to adjustments C--C and D--D taken along A; FIG. 8 is an axial sectional view of a second embodiment of an adjustable leg provided with a drive device for a desk according to the invention; FIG. 9 is a cross-sectional view of the adjustable leg taken along line E-E of FIG. 8; FIG. Figures 11, 12 and 13 are rear views of a second embodiment of the supervisor desk of the present invention with the working surface, stand and instruction section of the desk in various extensions. , a side view of the fourth and fifth embodiments, FIG. 14 is a side view of the sixth embodiment of the supervisor desk of the invention with a visual display unit, and FIG. 15 is a relative view of the supervisor desk of the invention. The electrical cables are shown extending between the movable sections. 1 nidotsubu section; 4 nistan r section y 4
am 4 b: leg unit 7; 7: freely adjustable legs; 8.9: outer and inner legs; 13: motor; 14: shaft;
15: 'Flexible Pel); 23: Display panel; 42:
Cable agent: Asamura, 4 people, F/6.2

Claims (1)

[Scope of Claims] (1) A supervisory day desk having a top section having a leading edge and a stand section having at least one leg of adjustable length, the leg being relative to the stand section. a stand section supporting the top section so that the height of the top section can be adjusted; and the at least one adjustable leg is configured such that when the length thereof is increased, the front edge of the top section A supervisor desk characterized by tilting forward relative to a vertical plane so as to move forward relative to a section. (2) A supervisor desk according to claim 1, wherein the angle between the at least one adjustable leg and the vertical plane is between 15° and 75°. (3) A Super Piday desk according to claim 2, wherein the angle is between 35° and 50'. (4) The super payday desk according to claim 1 or 2, wherein the at least one adjustable leg has two legs, one of which is movable telescopically within the other. A desk with coaxial legs, one leg being fixedly bent and forming a guide for the other leg. (5) A supervisor desk according to any one of claims 1, 2, or 4,
The desk further includes a drive unit for varying the length of said at least one adjustable leg. (6) The supervisor desk according to claim 4, further comprising a drive device for adjusting the length of the at least one adjustable leg, the cough drive device comprising a motor and a drive device for adjusting the length of the at least one adjustable leg. , a shaft driveable by the motor, and a flexible tensile member wound at one end on the shaft and fixed at the other end to one leg of at least one adjustable leg disposed in front. Desk with. - (7) The supervisor desk according to any one of Claim 1 (1), (2), or (4), further comprising a display device pivotally mounted on the top section, an upper end, and a stand section. A desk comprising a variable length support leg having a lower end pivotally mounted thereon and an apparatus for pivotally mounting a display device on the upper end of the support leg. (8) A supervisory day desk according to any one of claims 1m, 2, or 4,
It further includes a display section located above the top section and a support device that supports the display section directly from the stand section, the support device being such that an operator seated at the desk can move the display section between the display section and the top section. A desk configured to have a free view. (9) A supervisor desk as claimed in claim 1, having two adjustable legs between the top and the stand section, one leg located at each end of the desk to support the desk. In addition, there is a cabinet device adapted to house the electrical equipment, and the cabinet device is located between the legs of the desk. (a) A desk according to claim 9, wherein the cabinet device comprises two separate devices, each of which is configured adjacent to the other one of the legs. αυ A supervisor desk according to claim 9 or claim 10, wherein the top section has an actuation and/or display device connected through a cable to an electrical switch member in the cabinet arrangement, the cable being connected to the top section. and a desk fixed to a support device extending between the bottom section and fixed to the top section. ri2. A supervisor desk according to claim 11, wherein the cable between the top section and the cabinet equipment is enclosed by a housing that is easily removable.