JP2001145528A - Workstation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a workstation exclusively for the use of electronic information equipment for the pursuit of maximum use efficiency while securing a maximum depth for the installation of electronic information equipment inside a limited installation space in a workstation for the installation of electronic information equipment provided with a monitor and keyboard such as a personal computer. SOLUTION: In this workstation A provided with at least a monitor top plate 1 and a keyboard top plate 2 for the installation of electronic information equipment, the overall workstation A is approximately an L-shape in a plan view, the monitor top plate 1 and keyboard top plate 2 are arranged at locations and in directions usable from the direction opposite to a corner part D. The monitor top plate 1 and keyboard top plate 2 are interlocked with each other and displaced according to the attitude of a user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workstation for mounting electronic information equipment having a monitor such as a personal computer (hereinafter referred to as "personal computer") and a keyboard.

[0002]

2. Description of the Related Art Conventionally, the depth of a standard desk top plate is 70 mm.
cm, but when a monitor of an electronic information device such as a personal computer is placed in the depth direction of the
Since the RT monitor has a large depth width, a space may not be secured on the top plate in front of the RT monitor. Therefore, at the OA desk, the depth width of the top plate is set to 8
Generally, it is 0 cm.

[0003] It is also common practice to partition a space used by an individual with a partition panel arranged in a U-shape in plan view. The standard width of the space divided by the partition panel is often set to 180 cm in width and 120 cm in depth, but when a desk with a depth of 80 cm is installed in this space, the user can use the chair in a chair. This is inconvenient because it protrudes greatly toward the passage when sitting. In this case, either increase the depth of the section space or reduce the depth of the top plate to the standard 70c.
You have to choose m. Normally, changing the layout of the partition panels is a change in the layout of the entire room, which is large and costly, so a standard desk with a depth of 70 cm in the compartment space is formed into an L shape in plan view. The monitor is installed at the corner of the monitor and installed at an angle. In other words, a depth width of up to about 1.4 times the depth width of the top plate itself can be secured by the 45 ° inclined arrangement. However, if the two desks are arranged in an L-shape, a gap or a step often occurs at the joint, and the keyboard is placed over the joint, which is not convenient. In addition, if one top plate is formed in a substantially L-shape in plan view, not only is the top plate large, but it is impossible to adjust the height and front / rear position of the monitor and keyboard.

On the other hand, various desks and racks on which electronic information devices such as personal computers are mounted are provided. For example, in a personal computer rack, shelves are fixed in multiple stages, and the shelves are used as a monitor table and a keyboard table, but the monitor table and the keyboard table are fixed and can be adapted to the posture and physique of the user. It is not possible to change the height and position of the monitor base and keyboard base.

[0005] In addition, there has been provided a desk for personal computers in which the heights of a monitor table and a keyboard table can be adjusted. For example, in Japanese Patent Publication No. 7-147331, a support column with a built-in gas spring is erected before and after a common leg, a monitor table is mounted on each rear column, a keyboard table is mounted on a front column, and each is independently mounted. There is described a mounting table that can be adjusted in height.

[0006] However, the mounting table described in the above-mentioned publication can certainly adjust the height of the monitor table and the keyboard table according to the user's physique. However, the mounting table is in a posture in which the user is sitting on a chair. The monitor base and keyboard base cannot be adjusted accordingly. Therefore, when such an electronic information device is used, if the posture of the user changes, the distance and the positional relationship with the monitor and the keyboard are shifted, and the user must maintain the preset posture. ,
Maintaining the same posture for a long time is painful. In addition, every time the user changes the posture, changing the height of the monitor table or the keyboard table or the relative position with respect to the chair requires time-consuming work.

[0007]

SUMMARY OF THE INVENTION In view of the above situation, the present invention is to solve a problem in a workstation for mounting an electronic information device including a monitor such as a personal computer and a keyboard. An object of the present invention is to provide a workstation which is dedicated to the use of electronic information devices and pursues maximum use efficiency, while securing a maximum depth for mounting the electronic information devices in a limited installation space. Another object of the present invention is to provide a workstation in which the positions of the monitor table and the keyboard table can be changed easily and in a short time in conjunction with the position of the user.

[0008]

According to the present invention, there is provided a workstation for mounting an electronic information device having at least a monitor top plate and a keyboard top plate. The planar shape is substantially L-shaped,
The monitor top board and the keyboard top board are arranged in a usable position and direction from the direction toward the corner, and the monitor top board and the keyboard top board are displaced in conjunction with each other according to the posture of the user. Workstation.

A main top plate is provided on one side of the main body having the monitor top plate and the keyboard top plate, and an auxiliary top plate is provided on the other side portion. It is preferable that the keyboard top plate, the main top plate, and the auxiliary top plate have a substantially L-shape in plan view as a whole.

Further, the main top plate is fixed to the main body,
More preferably, the auxiliary top plate is linked to the main body so as to be able to move back and forth.

Then, the workstation of the present invention comprises:
It is characterized in that it can be installed along the partition panel in a space defined by the partition panel arranged in a U-shape in plan view.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. FIGS. 1 to 3 most symbolically show the features of the workstation according to the present invention. In the drawings, reference symbol A denotes a workstation, B denotes a desk with an elevating table, C denotes a partition panel, and 1 denotes a monitor panel. Board, 2
Denotes a keyboard top plate, 3 denotes a main top plate, 4 denotes an auxiliary top plate, P1 denotes a monitor, and P2 denotes a keyboard. Further, in FIG. 2, reference numeral H1 indicates a user having a height of 150 cm, and H2 indicates a user having a height of 180 cm.

FIG. 1 shows the relationship between a workstation A according to the present invention and a personal space S partitioned by a plurality of partition panels C,. This space S
Has a standard width of 180 cm in width and 120 cm in depth, and maximizes the effective use of the space so that electronic information devices such as a personal computer can be conveniently used in the space.

That is, the workstation A according to the present invention includes a desk B with an elevating and lowering board on which an electronic information device having at least a monitor top 1 and a keyboard 2 is mounted and used. Has a substantially L-shape in plan view, and the monitor top plate 1 and the keyboard top plate 2 are disposed at positions and directions that can be used from the direction toward the corner portion D, depending on the posture of the user H. The monitor top plate 1 and the keyboard top plate 2 are displaced in conjunction with each other. Also, the monitor top 1 and the keyboard top 2
And can be independently adjusted in the front-rear direction.

Further, as shown in FIG. 3, a main top plate 3 is provided on one side of a main body 5 of a desk B with a lift top plate provided with the monitor top plate 1 and the keyboard top plate 2. An auxiliary top plate 4 is provided on the other side, and the monitor top plate 1, the keyboard top plate 2, the main top plate 3 and the auxiliary top plate 4 have a substantially L-shape in plan view. Here, the main top 3 is
One end is supported by a leg 6 and the other end is fixed to the main body 5 for use for purposes such as writing or spreading a document like a normal tabletop. In addition, since the auxiliary top plate 4 is used by operating a mouse on an upper surface or mounting a material, the auxiliary top plate 4 is adjusted with respect to the main body 5 so that the position can be adjusted according to the position of the keyboard top plate 2. It is linked to move back and forth. Further, a shelf plate 7 capable of accommodating an electronic information device main body (not shown) is provided below the auxiliary top plate 4, and the whole is configured as a wagon-shaped side desk. The main top plate 3
The auxiliary top plate 4 and the auxiliary top plate 4 can also be used separately from the main body 5. As described above, when the monitor top 1 and the keyboard top 2 are installed obliquely to the corner D, preferably at an angle within a range of 45 ° ± 10 ° with respect to the depth direction of the main top 3. In addition, a sufficient depth for mounting the monitor P1 and the keyboard P2 can be secured.

Next, based on FIG. 2, in the workstation A according to the present invention, the monitor top plate 1 and the keyboard top plate 2 are changed in height and front-to-back position in conjunction with each other, so that an optimum use environment is obtained. The reason for the acquisition will be described. The height of the user H1 in FIG. 2A is 150 cm,
The height of the user H2 in (b) is assumed to be 180 cm. Ergonomically, in the relationship between the monitor P1 and the field of view, the arrangement where the screen of the monitor P1 is positioned at an angle of about 5 ° above and about 30 ° below the horizontal line of the eye level is optimized. ing. The distance between the user's eyes and the screen of the monitor P1 depends on the size of the screen and the preference of the user, but it is desirable that the distance be substantially constant regardless of the posture.

When a user operates an electronic information device, for example, a CAD, the user normally operates the keyboard P2 and the mouse in a posture in which the upper body is raised. In this posture, the height and the front-back position of the monitor P1 and the keyboard P2 are optimal. State exists. When operating while thinking in a relaxed state, it is often the case that the user leans deeply on the backrest of the chair to take a posture inclined backward. In this reclining posture, the position of the user's eyes is rearward and downward, and the height of the hand and the front and rear positions move as the elbow moves rearward and downward. However, since the amount of change between the eye and the hand is different, the monitor P1 and the keyboard P2 change in conjunction with each other according to the height of the eye and the hand and the front / rear position. To monitor P1
And the height and the front-back position of the keyboard P2 are in an optimum state.

However, if the physique of the user is different, the positions of the eyes and hands in the standing posture are different, and the amounts of change of the eyes and hands in the change from the standing posture to the reclining posture are different. Monitor P according to the user's physique
Initial setting so that the height and the front-back position of the keyboard 1 and the keyboard P2 are optimized can be achieved by allowing the front-back position of the monitor top plate 1 and the keyboard top plate 2 to be adjusted independently. However, it is not impossible to adjust the amount of change between the monitor top plate 1 and the keyboard top plate 2 according to the physique of the user. It goes beyond the category. Therefore, since the difference between the amount of change in the eyes and the hand due to the physique of the user is small, it is practically sufficient to set the amount of change between the monitor top plate 1 and the keyboard top plate 2 according to the user of standard height.

Next, the overall structure of the desk B with the elevating top plate will be described with reference to FIGS. In the desk B with a lifting top, the monitor top 1 and the keyboard top 2 move up and down and move in the front-back direction in conjunction with the main body 5, and the main body 5 has leg boards on both sides. With 8,8,
The rear portions of the two leg plates 8 are connected by a box body 9, and a balance device 10 described later is built in the box body 9. The front edge of the leg plate 8 is an inclined edge 11 inclined from upper rear to lower front, and a guide rail 12 having a substantially C-shaped cross section is fixed inside along the inclined edge 11. Then, a plurality of rollers 14, 14 provided on a support frame 13, 13 having a substantially V-shape in side view are attached to the left and right guide rails 12, respectively, in a state where the rollers 14, 14 are prevented from falling off. It can move along the guide rails 12, 12 which are inclined from the upper rear to the lower front. Further, the support frame 13 includes a rearwardly inclined frame 15 along the guide rail 12 and the rearwardly inclined frame 15.
Frame 16 rising diagonally forward from the lower end of the frame
The rearwardly tilting frame 15 extends above the forwardly tilting frame 16, and the monitor top plate 1 is attached to the upper portion of the rearwardly tilting frame 15 so as to be movable back and forth. Has the keyboard top plate 2 attached thereto.

The rearwardly inclined frame 15 of the support frame 13
The rollers 14, 14 are provided at two places, a lower end part and an intermediate part.
Is provided so as to be able to move up and down a distance substantially half of the entire length of the guide rail 12, but it is necessary to fix the support frame 13 at a predetermined height. For this purpose, engaging holes 17, which are opened to the front at regular intervals along the guide rail 12, are formed, while a locking rod 18 is provided in the rearwardly inclined frame 15 so as to be slidable back and forth in the width direction. A long hole 20 formed in the rearwardly inclined frame 15 is provided with an engagement pin 19 protruding outward from the lock rod 18.
And the engagement pin 19 is engaged with a predetermined engagement hole 17 by displacing the lock rod 18 in the front-rear direction. The left and right rearwardly inclined frames 1
In order to simultaneously drive the lock rods 18, 18 mounted on the rearwardly inclined frames 15, 15, an interlocking shaft 21 is rotatably supported by bearings 22, 22 between upper front surfaces of the rearwardly inclined frames 15, 15, and the interlocking shafts The connecting rods 23 are fixed to the respective ends of the connecting rod 21 in the direction along the rearwardly inclined frame 15, and the leading ends of the connecting rods 23 are pivotally attached to the front ends of the lock rods 18. The operation lever 24 is fixed to the shifted position so that the operation lever 24 can be operated below the keyboard top plate 2. In the case of this embodiment, by raising the operation lever 24 against an elastic urging force of a spring (not shown), the interlocking shaft 21 rotates, and the lock rod 18 slides forward through the connection rod 23. The engagement pin 19 is in the engagement hole 17
, The support frame 13 can be moved along the guide rail 12, and if the operation lever 24 is released after the height adjustment, the engagement pin 19 engages with the engagement hole 17 and its height is adjusted. Is maintained.

The height of the keyboard top plate 2 mounted on the upper part of the forwardly inclined frame 16 can be adjusted in the direction in which the forwardly inclined frame 16 extends. To do that,
The forward leaning frame 16 is formed in a pipe shape, and a telescopic rod 25 having the keyboard top plate 2 attached to the upper end thereof is slidably inserted into the inside thereof so that the position can be fixed after adjusting the height.

On the other hand, the monitor top plate 1 moves back and forth with respect to a fixed frame 26 mounted between the upper ends of the support frames 13 and 13 in conjunction with the operation of the support frame 13 moving up and down along the guide rails 12. It moves in the direction. That is, the monitor top 1 moves forward as it descends, and moves backward as it rises. In addition, the monitor top plate 1 has two support frames 13, 13.
The position can be adjusted in the front-rear direction independently of the vertical movement.

More specifically, as shown in FIGS. 4 to 12, the fixed frame 26 has a rectangular shape in plan view in which both ends of the front and rear horizontal rods 27, 27 are connected by side plates 28, respectively. 28, 28 to the rearward tilt frame 15,
At the upper end of the horizontal rods 27, the support rails 29 are fixed at symmetrical positions on the upper surfaces of the horizontal rods 27 in the front-rear direction. On the other hand, the support rails 29, 29
A pair of guide rails 30, 30 are fixed to the slightly outside position over the entire length of substantially the depth in the front-rear direction. Then, the upper ends of the support rails 29, 29 are protruded upward from the outer front and rear ends of the support rails 29.
So that the upper rolling piece 32 of the guide rail 30 rides on the rollers 31 and 31 so that the monitor top plate 1 can move lightly in the front-rear direction even if the heavy monitor P1 is placed thereon. ing. Further, at the lower end of the guide rail 30, a slight clearance is provided between the lower end of the roller 31 and the lower end of the roller 31 to form a regulating piece 33, thereby preventing the monitor top plate 1 from coming off and rattling.

The support rails 29 are members having a U-shaped cross section, and the grooves 34 face each other. And a driving force transmitting body 3 in the shape of a horizontally long plate having a narrow front and rear width.
5 are disposed between the support rails 29, 29, and rollers 36, 36 provided on both sides of the driving force transmitting body 35 are rolled in the grooves 34 of the support rail 29, respectively. The driving force transmission body 35 can be moved in the front-rear direction with respect to the fixed frame 26.

As shown in FIGS. 8 and 10 to 12, press-contact means 37 are attached to the left and right central portions of the monitor top plate 1 so as to intersect with the upper surface of the drive force transmitting member 35. The monitor top plate 1 moves back and forth together with the front and rear movement of the driving force transmission body 35 by the action of the frictional force caused by pressing against the upper surface of the force transmission body 35. The press-contact means 37 has an elongated shape extending in the front-rear direction, and has a channel-shaped base member 38 attached to the lower surface of the monitor top plate 1, and a vertical movement in the base member 38 is controlled so that the vertical movement is restricted. Between the base member 38 and the operating member 39, a U-shaped operating member 39 which is displaced toward the base member, a U-shaped pressing member 40 which is mounted on the base member 38 and moves up and down by the longitudinal displacement of the operating member 39. It is composed of a compression coil spring 41 interposed and a rubber sheet 42 attached or fitted to the lower surface of the pressing member 40 to increase the frictional force with the upper surface of the driving force transmitting body 35.

More specifically, vertically long holes 43, 43 are formed at the front and rear portions on both sides of the base member 38, and the inclined holes 44, 43 rising upward at corresponding positions on both sides of the operation member 39.
44 are formed, and through holes 45, 45 are formed at corresponding positions on both side surfaces of the pressing member 40.
3. The support shaft 46 is inserted into the inclined hole 44 and the through hole 45 to prevent it from falling off, and the handle plate 47 raised at the front end of the operating member 39 is vertically penetrated through the front end of the monitor top plate 1. It faces inside the formed opening 48. Normally, as shown in FIG. 12A, the operating member 39 is pushed downward by the elastic force of the compression coil spring 41, and
Is located below the long hole 43, that is, the pressing member 40 is pressed downward and the rubber sheet 42 is
Is pressed into contact with the upper surface. This state is a normal use state in which the driving force transmitting body 35 and the monitor top plate 1 are integrally driven back and forth as described above. Therefore, the handle plate 47
12B, the operating member 39 is displaced forward, and the support shaft 46 is pushed up by the inclined hole 44, that is, the pressing member 40 moves upward, as shown in FIG. The rubber sheet 42 is separated from the upper surface of the driving force transmitting body 35. In this state, the monitor top 1 can be freely moved in the front-rear direction by being guided by the rollers 31,... And the guide rails 30, 30, and the initial position of the monitor top 1 can be set. Here, if the hand is released from the handle plate 47, the operating member 39 is displaced rearward by the elastic force of the compression coil spring 41, and the pressing member 40 moves downward, and FIG.
The state becomes 2 (a).

Next, in conjunction with the operation of the support frame 13 moving up and down along the guide rail 12, the monitor top plate 1 is moved.
4, 5, and 7 show a link mechanism for moving the link in the front-rear direction.
This will be described with reference to FIG. A rotating shaft 49 is rotatably provided between the upper portions of the rearwardly inclined frames 15 and 15 of the support frame 13, and the bent portions of the pair of rotating rods 50 and 50 bent forward in a side view are formed. The rotating shaft 4 at an interval
9 and the operating rod 51 is fixed between the upper ends of the two rotating rods 50, 50.
0 is pivotally connected to one end of each of the link rods 52, 52 by a horizontal connecting pin 53 so as to be rotatable, and the other end of each of the link rods 52, 52 is placed horizontally above the main body 5. It is connected rotatably at a fixed position by a pivot shaft 54. Here, the rotating rod 50 and the link rod 52 are always set so that the connecting portion formed by the connecting pin 53 is bent rearward in a side view. On the lower surface of the driving force transmitting body 35, a pair of driving pieces 55, 55 are provided at intervals on the left and right, and the driving slits 56, 56 formed in the driving pieces 55, 55 are formed in the vertical slit grooves 56, 56. The operating rod 51 is vertically movably engaged. Further, since the rotating shaft 49 is long, it is necessary to suppress the bending of the intermediate portion. To this end, the intermediate portion of the rotary shaft 49 is rotatably supported by bearing plates 57, 57 fixed to the horizontal rod 27 of the fixed frame 26.

When the support frame 13 is lowered obliquely downward and forward along the guide rail 12 from the state where the monitor top plate 1 is highest (see FIG. 4), the rotation shaft 49 and the pivot shaft 54 are moved downward. And the connection pin 53
The linking rod 52 rotates about the rotating rod 50 while the connecting portion of the link is bent backward, and the operating rod 5 at the upper end thereof is rotated.
1 pushes the driving piece 55 forward while moving upward in the slit groove 56, thereby moving the monitor top plate 1 forward together with the driving force transmitting body 35 (see FIG. 5). Accordingly, the monitor top plate 1 is configured such that the front-rear displacement of the driving force transmitting member 35 with respect to the fixed frame 26 is added to the front-rear displacement of the fixed frame 26 in accordance with the inclination angle of the guide rail 12 by the link mechanism. This is larger than the longitudinal displacement of the keyboard top plate 2 which is only the longitudinal displacement of the fixed frame 26 according to the angle.

Next, the structure for setting the initial height of the keyboard top plate 2 will be described with reference to FIGS. 4, 5, 13 and 14. FIG. The extendable rod 25 slidably inserted into the forwardly inclined frame 16 has four rollers 58,... Provided on one side surface so as to protrude from the edge thereof, and rolls on the inner surface of the forwardly inclined frame 16. Therefore, it can be smoothly moved up and down in the direction in which the forwardly inclined frame 16 extends. Further, the structure in which the telescopic rod 25 is immovably locked with respect to the forwardly tilting frame 16 includes a regulating member 59 fixed to the inner surface of the forwardly tilting frame 16 and a stopper having one end rotatably attached to the telescopic rod 25. And a member 60. The regulating member 59 is mounted such that a front edge portion is located between the inner surface of the forward tilting frame 16 and the outer surface of the telescopic rod 25, and engagement recesses 61, 61 formed at the upper and lower portions of the edge portion. The lower end is pivotally attached to the outer surface of the telescopic rod 25 and the regulating member 59
Stopper member 60 elastically urged by leaf spring 62 in the direction of
The setting state is maintained by engaging the regulating pin 63 provided in the above. Here, the left and right stopper members 60, 6
Numeral 0 draws the upper part inward from the upper part of the telescopic rods 25, 25 and connects along the lower surface of the keyboard top plate 2 to form a lever 64. Therefore, when the lever 64 is pulled toward the user, the regulating pin 63 is disengaged from the engaging recess 61, so that the height of the keyboard top plate 2 can be adjusted. When the regulating pin 63 is engaged with the concave portion 61, the state is maintained. It is needless to say that the number of the engaging recesses 61 is further increased and the height and the front-rear position can be adjusted in multiple stages.

Next, a balance device 10 built in the box body 9 of the main body 5 will be described with reference to FIGS.
This will be described with reference to FIG. The monitor top plate 1 includes:
The monitor P1 is mounted. However, a monitor for CAD, which particularly requires a resolution, still has many CRTs, and a large screen has a large size, so that the weight is heavy. As a monitor used for general document creation and information processing, a CRT having a relatively small size and a lightweight flat panel such as a liquid crystal panel are used if resolution is not a problem. Therefore, it is assumed that monitors of various weights are placed on the monitor top 1. In this case, if the weight of the monitor is heavy, a large amount of labor is required for the lifting and lowering operation as it is, and when the user moves from the standing posture to the reclining posture, and vice versa, the monitor is performed according to the posture. The height and the front and rear positions of P1 and the keyboard P2 cannot be optimally changed in a short time by a simple operation. Therefore, the lifting / lowering operation is lightened by the balance device 10. However, when a simple coil spring is used as it is, its elastic force changes linearly in substantially proportion to the displacement, whereas the lifting mechanism according to the present invention has a higher height due to the displacement. It is necessary to always apply a constant force regardless of the difference, so that the weight balance shifts with the shift. Therefore, in the balance device 10 according to the present invention, when the compression coil spring is used for biasing the balance, initialization can be performed according to the weight placed on the monitor top 1 and the keyboard top 2, and The mechanism is such that a substantially uniform balance biasing force can be obtained at any height when adjusting the elevation.

Specifically, the balance device 1 according to the present invention
Numeral 0 changes the amplification factor for transmitting the elastic force to the elevating mechanism in accordance with the elastic force change depending on the degree of expansion and contraction of the compression coil springs 65, 65. A pair of guide frames 66, 66 are suspended from the inside of the box body 9 at intervals on the left and right.
An upper spring receiving member 67 and a lower spring receiving member 68 are independently arranged to be vertically movable therebetween. For example, vertical grooves 66A are respectively formed on the opposing surfaces of the guide frame 66, and the upper spring receiving members 67 are provided at both ends of the horizontal rail 67A with side frames 67B, 67B.
Are fixed in a right angle, and are substantially U-shaped in a front view.
Rollers 67C, 67C rolling in the vertical groove 66A are vertically provided on the outer surfaces of B, 67B. Similarly, the lower spring receiving member 68 has side frames 68B, 68B fixed to both ends of the horizontal rail 68A at right angles. It is substantially U-shaped when viewed from the front, and both side frames 68B, 68B
Rollers 68C, 6 rolling in the longitudinal grooves 66A
8C protrudes up and down.

At approximately the center of the upper plate 69 and the lower plate 70 of the box body 9, an adjusting screw shaft 71 is vertically rotatably provided at a fixed position so that the adjusting screw shaft 71 penetrates the upper plate 69. A rotating handle 72 is fixed to the upper end, and the adjusting screw shaft 71 is threaded through a screw hole 73 formed by welding a nut to the horizontal rail 67A of the upper spring receiving member 67. The through hole 74 formed in the horizontal rail 68A
The adjusting screw shaft 71 is loosely inserted into the shaft. Then, a small-diameter pipe 75 and a large-diameter pipe 76, which are vertically installed in opposing directions from the horizontal rail 67A and the horizontal rail 68A on both the left and right sides of the adjusting screw shaft 71, are inserted in a stretchable manner. The above-mentioned compression coil spring 65 is wound around the outer periphery of
Are interposed between the upper horizontal rail 67A and the lower horizontal rail 68A.

Further, support horizontal rails 77, 77 are provided so as to be sandwiched from the front and rear below the guide frames 66, 66, and guide horizontal rails 78 are provided on the upper rear surface side. The upper and lower ends of the guide frames 66, 66 are firmly fixed to the upper surface plate 69 and the lower surface plate 70. Furthermore,
A cylindrical rotary drum 79 is rotatably mounted on the left and right sides of the adjusting screw shaft 71 between the support horizontal rails 77 and 77 so as to be rotatable by front and rear support shafts. The eccentric cam 80 is integrally fixed. Here, the eccentric cam 80 has an approximately 1/4 elliptical shape whose distance from the rotation axis continuously changes, and projects behind the adjustment screw shaft 71 to the other side of the adjustment screw shaft 71, Further, a concave groove 81 is formed along the outer peripheral end surface of the eccentric cam 80. The rotating drum 79 has one end connected to the rotating drum 79.
Alternatively, the first wire 82 fixed at an appropriate position of the eccentric cam 80 is wound around the rotating drum 79 multiple times counterclockwise, and the other end is hung downward to be connected to the hook 83 fixed to the horizontal rail 68A of the lower spring receiving member 68. I'm wearing After passing the second wire 84 having one end fixed to an appropriate position of the eccentric cam 80 or the rotating drum 79, the eccentric cam 80 passes through the concave groove 81 from the large diameter side to the clockwise small diameter side. , And is hung on the upper portions of pulleys 86, 86 rotatably provided on the front and rear portions of the inside of the support member 85 protruding forward from the upper end portion of the box body 9 with a horizontal horizontal axis. After changing the direction, the other end is connected to the two support frames 13, 13.
Is connected to a connecting rod 87 provided between the rearwardly inclined frames 15 and 15. In addition, a pulley 88 rotatably provided on the front side of the guide horizontal rail 78 about a horizontal axis in the front-rear direction is oriented such that the direction of the second wire 84 is always the same as the direction of the rear pulley 86. I am adjusting.

Accordingly, the total weight of the portion of the electronic information equipment mounted on the monitor top plate 1 and the keyboard top plate 2 including the monitor P1 and the keyboard P2, which moves up and down together with the support frame 13, is the second wire 84, Eccentric cam 8
0, the rotary drum 79, the first wire 82, and the lower spring receiving member 68 are sequentially supported by the compression coil springs 65, 65 whose upper ends are fixed by the upper spring receiving member 67. In this case, as shown in FIGS. 4 and 16, when the elevating part S is located at the uppermost position, the compression coil spring 6
5 and 65 are in the most extended state, so that the radius R of the eccentric cam 80 at the portion where the second wire 84 is tangent to the eccentric cam 80 is minimized so as to balance the minimum elastic force. You have set. On the other hand, as shown in FIGS. 5 and 17, when the elevating portion S is located at the lowest position, the compression coil springs 65 are in the most contracted state. The radius R of the eccentric cam 80 at the portion where the second wire 84 is tangent to the eccentric cam 80 is set to be maximum. The change in the radius R of the eccentric cam 80 varies depending on the spring constant K of the compression coil spring 65 used, but is also nonlinearly affected by the total load F of the elevating portion S as described later. Is not uniquely determined in the range. However, it is possible to design with a value at the approximate center of the assumed total load F. And monitor P of electronic information equipment
1 and the keyboard P2 are placed at predetermined positions, the rotating handle 72 is rotated in either direction, the adjusting screw shaft 71 is rotated, and the upper spring receiving member 67 is moved up and down. The elastic force is adjusted at the initial stage of the springs 65, 65 so as to be substantially balanced with the total weight of the elevating portion S.

FIG. 18 shows the principle of the balance device 10.
, And the corresponding configurations are described with the same reference numerals. Figure
At 18, the symbol r is the radius of the rotary drum 79, and R is the bias.
The radius of the core cam 80, θ, is when the ascending / descending portion S is the highest
Contact of the eccentric cam 80 to the second wire 84
Counterclockwise angle (radian) with reference to radius R at
Is the spring constant of the compression coil spring 65 (here, two springs
, L) ₀Is the nature of the compression coil spring 65
Length and L are initialized by moving the upper spring receiving member 67 up and down.
The length of the compression coil spring 65, dx is the compression coil spring 6
5 is the change length, F is the total load of the elevating part S (however,
(Along the rail 12). Also, M₁Is the load F
Moment of force, M_TwoIs the bullet of the compression coil spring 65
Indicates the moment of force due to sexual force. Hereinafter, M₁And M_TwoBut fishing
Find the conditions that meet.

When θ = 0, FR = Kl, a minute increase dM ₁ = Fd of the moment M ₁ when the spring contracts by dx.
A minute increase dM ₂ = rKdx of the moment M ₂ when rotated by R and dθ. Since the relationship between dx and dθ is dx = rdθ, solving the differential equation with dM ₁ = dM ₂ gives R (θ) = (F / Kr ² ) θ + K1 / F. This solution is a linear expression of θ, but is not a linear expression for F. The two terms can be set to a constant value by adjusting the spring strength Kl when F is different. The coefficient alone cannot be constant. That is, R (θ) cannot be uniquely determined analytically over a wide range of F.
However, as described above, it is possible to approximately balance the strength of the spring and the total load of the lifting portion S. Therefore, in any state of the elevating part S, the elevating adjustment can be performed with a light force.

19, rollers 89,... Protrude from the upper and lower portions of the outer surface of the leg plate 8 of the main body 5 to support the auxiliary top plate 4 and the shelf plate 7. At the upper and lower portions of the outer surface of the plate 90, horizontal rails 91, 91 for receiving the rollers 89,... Are provided, and one or a plurality of casters 92,. It was done. Therefore, even if the main body of the electronic information device is placed on the shelf 7, the keyboard
It is possible to easily adjust the front-back position according to.

FIG. 20 shows another embodiment of a desk B1 with a lifting and lowering plate constituting a work station A, in which a leg plate 8 of the same main body 5 has two guides having different inclination angles. Rails 12A and 12B are provided, and a first support member 93 having the monitor top plate 1 attached to the upper end thereof is slid up and down by rollers 94 and 94 on one guide rail 12A, and a keyboard top plate 2 is attached to the upper end. 2 The support member 95 is slid up and down by rollers 96, 96 to connect the first support member 93 and the second support member 95 to a connecting rod 97.
The monitor top plate 1 and the keyboard top plate 2 are linked so that the height and the front-back position can be changed. Also in this case, the monitor top 1 can adjust the front and rear position independently of the interlocking adjustment, and the keyboard top 2 can also adjust the height independently.

[0039]

According to the first aspect of the present invention, there is provided a workstation for mounting an electronic information device having at least a monitor top plate and a keyboard top plate. The viewing shape is substantially L-shaped, and the monitor top plate and the keyboard top plate are arranged at a usable position and direction from a direction toward a corner, and the monitor top plate and the keyboard are set according to the posture of the user. Since the top plate and the top plate are displaced in conjunction with each other, the maximum depth for mounting electronic information devices in a limited installation space, especially in a personal space partitioned by partition panels, is secured. Meanwhile, the maximum use efficiency can be achieved by specializing in the use of electronic information devices.

According to the second aspect, the main tabletop can be used for the purpose of writing or spreading a document like a normal desk tabletop, and a mouse can be operated on the upper surface of the auxiliary tabletop. It is easy to use because it can be used by putting materials on it, and it can be adjusted according to the position of the keyboard top plate.

According to the third aspect, since the positions of the monitor table and the keyboard table can be changed easily and in a short time in accordance with the posture of the user, the work efficiency is greatly improved.

[Brief description of the drawings]

FIG. 1 is a simplified plan view showing a workstation according to the present invention.

FIG. 2 is an abbreviated side view for explaining an effect of adjusting a height and a front-rear position by interlocking a monitor top plate and a keyboard top plate. FIG. 2A illustrates a case where a user having a height of about 150 cm is used. b) shows the case of a user about 180 cm tall.

FIG. 3 is an overall perspective view of a workstation according to the present invention.

FIG. 4 is a simplified vertical sectional side view of a desk with an elevating top plate, which also constitutes the workstation, in a state where the top plate is raised most.

FIG. 5 is a simplified vertical sectional side view of a desk with an elevating top plate, which also constitutes the workstation, in a state where the top plate is lowered most.

FIG. 6 is a partially exploded perspective view showing a guide mechanism of a support frame.

FIG. 7 is a partially exploded perspective view of the same.

FIG. 8 is an exploded perspective view showing a mechanism for adjusting the front and rear positions of a monitor top plate.

FIG. 9 is an exploded perspective view of a fixed frame.

FIG. 10 is a simplified vertical side view showing an assembled state of a mechanism for adjusting a front and rear position of a monitor top plate.

FIG. 11 is a partial front view of the same.

FIG. 12 shows a mechanism for adjusting the front and rear positions of a monitor top plate,
(A) is a partial front view in a state interlocked with a keyboard top plate,
(B) is a partial front view of a state in which the front and rear positions of the monitor top are independently initialized.

FIG. 13 is a partially exploded perspective view showing a mechanism for initially adjusting the height of the keyboard top plate.

FIG. 14 is a sectional view of the same.

FIG. 15 is an exploded perspective view showing a balance device for a desk with a lift top plate according to the present invention.

FIG. 16 is a vertical cross-sectional front view when the elevating part is raised most.

FIG. 17 is a vertical cross-sectional front view when the elevating part descends most.

FIG. 18 is an explanatory diagram for explaining the principle of the balance device.

FIG. 19 is a partial front view showing a mechanism for moving the auxiliary top plate back and forth.

FIG. 20 is a simplified side view showing another embodiment of a desk with an elevating plate constituting a workstation according to the present invention.

[Explanation of symbols]

 Reference Signs List A Workstation B Desk with elevator top C Partition panel D Corner H User S Elevator 1 Monitor top 2 Keyboard top 3 Main top 4 Auxiliary top P1 Monitor P2 Keyboard 5 Main body 6 Leg 7 Shelf 8 leg plate 9 box body 10 balance device 11 inclined edge 12 guide rail 13 support frame 14 roller 15 backward inclined frame 16 forward inclined frame 17 engaging hole 18 lock rod 19 engaging pin 20 long hole 21 interlocking shaft 22 bearing 23 connecting rod 24 Operation lever 25 Telescopic rod 26 Fixed frame 27 Horizontal rod 28 Side plate 29 Support rail 30 Guide rail 31 Roller 32 Upper rolling piece 33 Restriction piece 34 Groove 35 Drive force transmitter 36 Roller 37 Pressure contact means 38 Base member 39 Operating member 40 Pressing member 41 Compression coil spring 42 Rubber seam 43 long hole 44 inclined hole 45 through hole 46 support shaft 47 handle plate 48 opening 49 rotation shaft 50 rotation rod 51 operating rod 52 link rod 53 connecting pin 54 pivot support shaft 55 drive piece 56 slit groove 57 bearing plate 58 roller 59 regulating member Reference Signs List 60 Stopper member 61 Engagement concave portion 62 Leaf spring 63 Regulator pin 64 Lever 65 Compression coil spring 66 Guide frame 66A Vertical groove 67 Upper spring receiving member 67 67A Horizontal rail 67B Side frame 67C Roller 68 Lower spring receiving member 68A Horizontal rail 68B Side frame 68C Roller 69 Upper plate 70 Lower plate 71 Adjusting screw shaft 72 Rotating handle 73 Screw hole 74 Through hole 75 Small diameter tube 76 Large diameter tube 77 Supporting horizontal bar 78 Guide horizontal bar 79 Rotating drum 80 Eccentric cam 81 Depressed groove 82 First wire 83 Hook 84 second wire 85 support member 86 pulley 87 connection Rod 88 Pulley 89 Roller 90 Vertical plate 91 Rail 92 Caster 93 First support member 94 Roller 95 Second support member 96 Roller 97 Connecting rod

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masafumi Yabuuchi 1-4-12-1 Imafukuhigashi, Joto-ku, Osaka-shi Itoki Crebio Co., Ltd. (72) Yoshiko Yagi 1-4-12 Imafukuhigashi, Joto-ku, Osaka-shi No. Itoki Crebio Co., Ltd.

Claims (4)

[Claims] 1. A workstation for mounting an electronic information device provided with at least a monitor top plate and a keyboard top plate, wherein the workstation has a substantially L-shaped plan view as a whole, and the monitor top plate and a keyboard. The top plate is located at a position and direction that can be used from the direction toward the corner,
A workstation, wherein the monitor table and the keyboard table are displaced in conjunction with each other according to the posture of the user. 2. A main table provided on one side of a main body provided with the monitor table and a keyboard table, and an auxiliary table provided on the other side, 2. The workstation according to claim 1, wherein the keyboard top plate, the main top plate and the auxiliary top plate have a substantially L-shape in plan view. 3. The workstation according to claim 2, wherein the main top plate is fixed to the main body, and the auxiliary top plate is linked to the main body so as to be movable back and forth. 4. The workstation according to claim 1, wherein the workstation can be installed along the partition panel in a space defined by the partition panel arranged in a U-shape in plan view.