JP2002045241A - Oa desk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an OA desk for placing thereon information equipment with a monitor and a keyboard, such as a PC, allowing a monitor top plate and a keyboard top plate to easily vary in position in combination and in a short time depending on a user's posture when the user's posture varies between an upstanding posture and a rearwardly reclined posture during operation. SOLUTION: The OA desk is adapted for placing electronic information equipment thereon and includes at least a monitor top plate 1 and a keyboard top plate 2. The keyboard top plate is movable along an inclined track between an upper rear part and a lower front part and the monitor top plate is longitudinally movable; as the keyboard top plate moves downwards and forwards, the monitor top plate is moved forwards.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal computer (hereinafter referred to as a "personal computer") for mounting an electronic information device provided with a monitor and a keyboard.
A desk.

[0002]

2. Description of the Related Art Conventionally, various desks and racks for mounting electronic information devices such as personal computers have been provided. For example,
Personal computer racks have shelves fixed in multiple stages, and the shelves are used as a monitor stand and a keyboard stand.
The monitor base and the keyboard base are fixed, and the height and the position of the monitor base and the keyboard base cannot be changed according to the posture and the physique of the user.

[0003] In addition, desks compatible with personal computers have been provided in which the heights of a monitor base and a keyboard base 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.

[0004] 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.

[0005]

SUMMARY OF THE INVENTION In view of the above situation, the present invention is to solve an OA desk for mounting an information device including a monitor such as a personal computer and a keyboard. When the user's posture during work changes between a standing posture and a reclined reclined posture, the position of the monitor top plate and the keyboard top plate are interlocked according to the user's posture, making it easy and quick. Another object of the present invention is to provide an OA desk that can be changed.

[0006]

According to the present invention, there is provided an OA desk for mounting an electronic information device provided with at least a monitor top plate and a keyboard top plate. The keyboard top plate is movable along an inclined trajectory between an upper rear portion and a lower front portion, and the monitor top plate is movable back and forth, and as the keyboard top plate moves down and forwards, An OA desk was configured so that the monitor top plate was moved so as to move forward.

In addition, guide rails which are inclined from upper rear to lower front are provided in the legs arranged on both sides,
A movable member fixed to a base end of an arm supporting the keyboard top plate is slidably connected to each guide rail, and a support frame is fixed to a fixed member provided between upper ends of both legs, and the support frame is fixed. In a preferred embodiment, the monitor top plate is provided on the frame so as to be movable back and forth, and the monitor top plate is linked by an interlocking mechanism such that the moving distance of the movable member is proportional to the longitudinal movement distance of the monitor top plate.

Further, a driving pulley is provided in the upper end of the leg so as to be rotatable about a horizontal rotation shaft, and a lower end of a support wire wound non-slidably around the driving pulley is connected to an upper portion of the movable member. At the same time, the guide wire, which is non-slidably wound around the drive pulley and extends downward from the tangent opposite to the support wire, is turned upward by a guide pulley provided at a lower portion in the leg portion, and its end is changed. A tension coil spring is incorporated along the leg while being fixed to the lower portion of the movable member, and a lower end of the tension coil spring is fixed to the lower portion of the leg, and a biasing wire linked to the upper end is connected to the drive pulley. More preferably, the drive pulley is non-slidably wound on a biasing pulley having a smaller diameter than the driving pulley fixed coaxially, and biased by the elastic restoring force of a tension coil spring in a direction in which the keyboard top plate moves upward. .

[0009] An interlocking pulley is fixed to an intermediate portion of the shaft provided between the two legs, and the front and rear ends of an interlocking wire wound around the center portion of the interlocking pulley are linked to the front and rear portions of the monitor top plate. In addition, it is further preferable that the rotation speed of the shaft is linked in proportion to the moving distance of the movable member. In this case, it is practical that the shaft is connected to the rotating shaft so that the shaft can rotate together.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. 1 to 4 most symbolically show the features of the OA desk according to the present invention,
In the figure, reference numeral 1 denotes a monitor top plate, 2 denotes a keyboard top plate, 3 denotes a leg, and 4 denotes an arm.

An OA desk according to the present invention is an OA desk for mounting an electronic information device having at least a monitor top plate 1 and a keyboard top plate 2, wherein the keyboard top plate 2 has an upper rear portion. The monitor table 1 can move forward and backward along an inclined trajectory between the monitor table 1 and the lower front part, and the monitor table 1 moves downward and forward with the keyboard table 2. Are linked to move forward.

The operation of the OA desk according to the present invention is shown in FIGS.
FIG. 2 shows a state in which the keyboard top plate 2 is located at the highest and rearmost position, and the monitor top plate 1 is located at the rearmost position. FIG. 3 shows a state in which the keyboard top plate 2 is located at the lowest position and forward, and the monitor top plate 1 is located forward.
FIGS. 1 and 4 show a state in which the keyboard top plate 2 and the monitor top plate 1 are located at an intermediate position between the extreme positions shown in FIGS. 2 and 3, and in the illustrated example, the keyboard top plate 2 and the monitor top plate 1 are shown.
And have shown the same height.

When a user operates an electronic information device, for example, a CAD, the keyboard or mouse is usually operated in a posture in which the upper body is raised, but in this posture, the height and the front and rear positions of the monitor and the keyboard are optimal. 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, and the amount of change varies non-linearly, it is not impossible to optimally set the keyboard top 2 and the monitor top 1 in all postures. It is not practical because it becomes a simple mechanism. The concept of the present invention is that the keyboard top 2 and the monitor top 1 are not in an optimal state according to the posture and the physique of the user, but can be changed in conjunction with a state close to the optimal state. Inexpensively.

Next, the overall configuration of the OA desk according to the present invention will be described with reference to FIGS. The desk for office automation according to the present invention is provided with guide rails 5 and 5 inclined from upper rear to lower front in legs 3 and 3 arranged on both sides, and the guide rails 5 and 5 are attached to the respective guide rails 5 and 5. A movable member 6 fixed to a base end of an arm 4 supporting the plate 2 is slidably connected to the movable member 6, and a support frame 8 is fixed to a fixed member 7 provided between upper ends of both legs 3, 3. The monitor top plate 1 is provided on the support frame 8 so as to be able to move back and forth, and is linked by an interlocking mechanism 9 so that the moving distance of the movable member 6 and the front and rear movement distance of the monitor top plate 1 are proportional.

More specifically, the leg portion 3 is a flat cylindrical member, and is fixed to the lower end in the front-rear direction.
At 0, a pair of right and left is erected in a rearwardly inclined state, and the upper ends of both legs 3, 3 are firmly connected by a hollow fixing member 7 having a triangular cross section. A guide rail 5 having a guide groove opened inward along the inner front edge of the leg 3 is fixed, and the movable member is located on the front surface of the leg and slightly inside the guide rail 5. Slit 11 to accept 6
Are formed.

The arm 4 is a hollow rod inside, and the movable member 6 is fixed to the lower end thereof so as to be substantially T-shaped when viewed from the side. Then, the movable member 6 is inserted into the inside of the leg 3 through the slit 11, and rollers 12, 12 provided side by side with the movable member 6 at an interval vertically.
Is rolled in the guide groove 13 of the guide rail 5, so that a trajectory along the guide rail 5 in a rearward inclined state,
That is, the keyboard top plate 2 changes along an inclined locus between the upper rear portion and the lower front portion.

Further, a driving pulley 15 is provided in the upper end of the leg portion 3 so as to be rotatable about a horizontal and horizontal rotation shaft 14, and a supporting wire 16 wound non-slidably around the driving pulley 15.
The lower end of the guide wire 1 is engaged with the upper portion of the movable member 6, and is also slidably wound around the drive pulley 15 and extends downward from a tangent opposite to the support wire 16.
7 is turned upward by a guide pulley 18 provided at a lower portion in the leg portion 3, and an end thereof is engaged with a lower portion of the movable member 6. Here, the support wire 16 and the guide wire 17 may be continuous, but the drive pulley 1
In order to wind the wire 5 without slipping, it is necessary to increase the number of turns, and it is necessary to configure the drive pulley 15 so as not to be completely loosened. Therefore, an elastic tension mechanism is also required. It gets complicated. Therefore, in the present embodiment, the ends of the support wire 16 and the guide wire 17 are respectively fixed to appropriate positions of the drive pulley 15 and then wound several times in opposite directions.

Further, a tension coil spring 19 is built in along the longitudinal direction of the leg portion 3, and the lower end of the tension coil spring 19 is locked to the locking piece 20 below the leg portion 3 and linked to the upper end. An urging wire 21 is non-slidably wound around an urging pulley 22 smaller in diameter than the driving pulley 15 which is coaxially fixed to the driving pulley 15. It is biased by restoring force. That is, the length of expansion and contraction of the tension coil spring 19 is set to be small with respect to the moving distance of the movable member 6, the change in the elastic force of the tension coil spring 19 is reduced, and the urging is performed when the keyboard top plate 2 moves up and down. The force applied is almost constant.

After the keyboard top plate 2 is set at a predetermined position, a lock mechanism 23 for fixing the state is provided. The lock mechanism 23 includes an engaging member 24 fixed inside the leg portion 3 in parallel with the guide rail 5 and a movable mechanism along the inside of the arm 4 so as to be detachable from the engaging member 24. It comprises an engaging rod 25 to be engaged, and an operation lever 26 provided on the lower surface of the keyboard top plate 2 for driving the engaging rod 25 so as to be movable back and forth. More specifically, an engagement pin 28 provided at the tip of the engagement rod 25 engages with a plurality of engagement recesses 27 formed at equal intervals along the front edge of the engagement member 24. This restricts the movement of the movable member 6, that is, the movement of the keyboard top plate 2. The engaging rod 25 and the operating lever 26 are linked, and when the operating lever 26 is pulled forward, the engaging rod 25 is displaced forward along the arm 4, and the engaging pin 28 is , The position of the keyboard top plate 2 can be changed. It is preferable that the operation lever 26 or the engagement rod 25 be held at a suitable position in the direction in which the engagement pin 28 engages with the engagement recess 27 by elastically biasing, engaging, or disengaging. In the embodiment, a two-way holding means 29 is provided on the back side of the keyboard top plate 2 in association with the operation lever 26.

Next, a description will be given of a front-rear sliding structure and a driving mechanism of the monitor top plate 1 with reference to FIGS. 6, 9 and 10. FIG. First, the front and rear sliding structure of the monitor top plate 1 is such that a pair of support frames 8 and 8 are arranged in the front and rear directions on the upper and lower left and right sides of the fixing member 7 provided between the upper portions of the both legs 3 and 3. Guide rollers 30, 30 are provided so as to protrude upward from front and rear ends of each support frame 8, while both side rods 32, 32 of a fixed frame 31 fixed to the lower surface of the monitor top plate 1 are downward. The support frame 8 is configured to receive the support frame 8 therein and to be supported by the guide rollers 30, 30 to be movable back and forth. Here, the support frame 8 is shorter than the side rod 32 of the fixed frame 31, and the distance that the support frame 8 relatively moves within the side rod 32 is the maximum stroke of the monitor top plate 1.

Next, the front and rear driving of the monitor top plate 1 is as follows.
This is performed by moving the keyboard top board 2 via the interlocking mechanism 9. That is, the shaft 33 is rotatably disposed along the inside of the fixing member 7, and both ends of the shaft 33 are coaxially and co-rotatably connected to the rotating shaft 14, respectively. It has been transferred between three and three. Then, two interlocked pulleys 34, 34 are fixed to the intermediate portion of the shaft 33,
The front and rear ends of the interlocking wire 35 wound around the central portion are connected to the front and rear portions of the monitor top plate, specifically, the fixed frame 3.
One of the front and rear horizontal bars 36, 36 is linked.

More specifically, the interlocking pulley 34 is disposed so that an upper end protrudes from an opening 37 formed in the upper surface of the fixing member 7, and the interlocking wire 35
Is wound around the interlocking pulley 34 a plurality of times,
From the upper end facing the front and back in the same tangential direction,
One of the front and rear interlock wires 35 is wound up with respect to the rotation of the interlock pulley 34, and the other is fed out. Therefore, the rotation of the interlocking pulley 34 causes the fixed frame 31 to move forward and backward, and the monitor table 1 fixed above the fixed frame 31 to move forward and backward. Here, the interlocking pulley 34 is set to be larger than the diameter of the driving pulley 15, and the keyboard top plate 2 along the guide rail 5 is set.
The moving stroke of the monitor top plate 1 is larger than the moving stroke of the monitor top plate 1. In the present embodiment, the two components are directly connected to each other to transmit the rotational force of the rotary shaft 14 to the shaft 33. However, other rotational force transmitting means, such as a timing belt, a gear, and a universal joint, are employed. It is possible,
Further, the support wire 16 can be extended and connected to the fixed frame 31 by changing the direction with a plurality of pulleys. In any case, it is desirable to configure the interlocking mechanism 9 to interlock the rotation speed of the shaft 33 in proportion to the moving distance of the movable member 6.

As described above, in the OA desk of the present invention, the keyboard top plate 2 and the monitor top plate 1 are moved in conjunction with each other, and the height, the front-rear position,
Although the relative position is changed, it is more preferable if the monitor top 1 and the keyboard top 2 can be initialized according to the physique of the user. Here, the height adjustment range with respect to the keyboard top plate 2 can sufficiently cope with the physique of the user as it is. Therefore, it is sufficient that the initial height of the monitor top plate 1 can be adjusted in several steps according to the user's physique. This can be solved by adjusting the height of the monitor top plate 1 with respect to the fixed frame 31 via the adjustment fitting 38 shown in FIGS. That is,
The adjusting bracket 38 has a rectangular parallelepiped shape having three sides different in length, width, and height, and has mounting holes for mounting on side surfaces of the side rod 32 of the fixed frame 31 on three adjacent surfaces. 39, 39 and a fixing hole 40 for fixing the lower surface of the monitor top plate 1 are formed. In FIG. 11, holes A, B, and C are assigned to holes used as a set, respectively. That is, when the mounting hole 39A and the fixing hole 40A are used, the height becomes H1, and the mounting hole 39B and the fixing hole 40B are used.
Is used, the height becomes H2, and when the mounting hole 39C and the fixing hole 40C are used, the height becomes H3.
Can be initially set at three levels of height.

As shown in FIG. 1, as an option, support plates 41, 41 are connected above the legs 3, 3, and a shelf plate 42 is attached to the upper end thereof to be used as an OA desk with an upper shelf. It is also possible. Note that the shelf plate 42 can also be attached to the upper and lower intermediate heights of the support plates 41, 41. Further, as shown in FIG. 2, FIG. 5, and FIG. 6, the support rods 43,
It is also preferable that the wiring duct 44 be provided laterally at the rear portion by extending the 43 and using the supporting rods 43, 43.

Further, as shown in FIG.
It is also preferable to provide a panel 46 at the rear end of each of the panels 3 and 43 via a bracket 45 so as to be adjustable in height. Further, as shown in FIG.
Alternatively, a cabinet 47 can be provided.

Further, as shown in FIGS. 15 and 16, the OA desk according to the present invention is installed at a corner formed by a partition panel or a wall surface, and in order to improve the space use efficiency,
By connecting the auxiliary table 48 having a trapezoidal shape in plan view and the auxiliary table 49 having a triangular shape in plan view to both sides, a workstation having an overall L-shape in plan view can be formed.
The auxiliary table 48 supports the outer end of the auxiliary top plate 48A with a leg 48B, and has the inner end on the upper surface of a connecting member 48C fixed between the leg 48B and the upper end of the leg 3. Are supported in parallel with the supporting member 48D. Similarly, the auxiliary table 49 has an auxiliary top plate 49A.
The supporting member 4 has its outer end supported by the leg 49B and the inner end fixed on the upper surface of a connecting member 49C fixed between the leg 49B and the upper end of the leg 3 in parallel with the leg 3.
It is supported by 9D. Here, the connecting member 48C and the connecting member 49C have a cross-sectional shape similar to the cross-sectional shape of the fixing member 7, and the inside can be used as a duct for wiring.

The OA of another embodiment shown in FIG.
In the desk, the leg 3 stands upright with respect to the grounding leg 10, and the monitor top 1 is attached to the upper end of the leg 3 so as to be movable back and forth, and along the leg 3 in front of the leg 3. Arm 4 so as to be able to move up and down, and a keyboard top plate 2 is attached to the rising portion at the front of the arm 4 so that the keyboard top plate 2 can move back and forth. The position can be adjusted in an interlocked manner by a simple interlocking mechanism 9.

[0028]

According to the first aspect of the present invention, the O
The desk A is an OA desk for mounting an electronic information device having at least a monitor top plate and a keyboard top plate, and the keyboard top plate has an inclined locus between an upper rear portion and a lower front portion. And the monitor top is movable back and forth, and the monitor top is moved forward and downward along with the keyboard top so as to move forward. When the posture of the middle user changes between the standing posture and the reclining posture leaning backward, the positions of the monitor top and the keyboard top are linked in accordance with the posture of the user in a simple and short time. It can be changed, and work efficiency can be improved, and it is most suitable as an OA desk for mounting an information device including a monitor such as a personal computer and a keyboard.

According to the second aspect, the monitor top plate is moved only in the front-rear direction, and the monitor top plate is provided on the support frame so as to be movable back and forth. It is expensive, and the load of operating the keyboard top does not change significantly due to the difference in the weight of the monitor.

According to the third aspect of the present invention, even when the keyboard top plate is lifted, the keyboard is urged by the elastic restoring force of the tension coil spring, so that the operation is light and the mechanism is simple, and the leg is easy. Since everything is housed in the department, the appearance is also refreshing.

According to the fourth aspect, the mechanism for moving the monitor top plate back and forth is simple, and the change ratio between the keyboard top plate and the monitor top plate can be easily adjusted by adjusting the ratio of the diameters of the drive pulley and the interlocking pulley. Can be set.

According to the fifth aspect, the moving mechanism of the keyboard top plate and the moving mechanism of the monitor top plate can be manufactured independently, and the rotating shaft and the shaft may be connected when assembling the whole. Manufacturing and assembly are greatly simplified.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an OA desk according to the present invention.

FIG. 2 is a simplified side view of a state in which a keyboard top is set highest and a monitor top is set most rearward.

FIG. 3 is a simplified side view showing a state in which a keyboard top is set at the lowest position and a monitor top is set at the frontmost position.

FIG. 4 is a simplified side view showing a state in which a keyboard top plate and a monitor top plate are set at the same height.

FIG. 5 is a side view of the OA desk of the present invention, partially broken away.

FIG. 6 is an enlarged side view showing a main part of the same, partially broken away.

FIG. 7 is a vertical sectional view of a keyboard top plate.

FIG. 8 is a simplified cross-sectional view of a leg.

FIG. 9 is a simplified vertical sectional front view showing a mechanism for moving a monitor top plate.

FIG. 10 is an exploded perspective view showing a moving mechanism of the monitor top plate.

FIG. 11 is a perspective view of an adjustment fitting for setting an initial height of the monitor top plate.

FIG. 12 is a partial perspective view showing a state in which an adjustment fitting is attached to a fixed frame.

FIG. 13 is a perspective view showing a state where a panel is attached to a rear portion.

FIG. 14 is a perspective view showing a state where a cabinet is mounted above a monitor top plate.

FIG. 15 is a plan view showing an example in which a workstation suitable for being arranged in a corner portion in combination with an auxiliary table is configured.

FIG. 16 is a front view of the same.

FIG. 17 is a simplified side view showing another example of the OA desk.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Monitor top plate 2 Keyboard top plate 3 Leg 4 Arm 5 Guide rail 6 Movable member 7 Fixed member 8 Support frame 9 Interlocking mechanism 10 Grounding leg 11 Slit 12 Roller 13 Guide groove 14 Rotation axis 15 Drive pulley 16 Support wire 17 Guide wire Reference Signs List 18 guide pulley 20 locking piece 21 urging wire 22 urging pulley 23 locking mechanism 24 engaging member 25 engaging rod 26 operating lever 27 engaging concave part 28 engaging pin 29 two-way holding means 30 guide roller 31 fixed frame 32 side Rod 33 Shaft 34 Interlocking pulley 35 Interlocking wire 36 Horizontal rod 37 Opening 38 Adjusting bracket 39 Mounting hole 40 Fixing hole 41 Support plate 42 Shelf plate 43 Support rod 44 Wiring duct 45 Bracket 46 Panel 47 Cabinet 48 Auxiliary table 49 Auxiliary table

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G06F 1/16 H05K 7/18 B H05K 7/18 D G06F 1/00 313A

Claims (5)

[Claims] 1. An OA desk for mounting an electronic information device having at least a monitor top plate and a keyboard top plate, wherein the keyboard top plate is an inclined locus between an upper rear portion and a lower front portion. And the monitor table is movable back and forth, and the monitor table is moved forward and downward as the keyboard table moves and moves forward. OA desk. 2. A movable member fixed to a base end of an arm for supporting the keyboard top plate, wherein guide rails inclined from upper rear to lower front are provided in legs arranged on both sides. Are slidably connected to each other, a support frame is fixed to a fixing member provided between upper ends of both legs, and the monitor top plate is provided on the support frame so as to be movable back and forth. The OA desk according to claim 1, wherein the OA desk is linked by an interlocking mechanism so that the front-back moving distance is proportional. 3. A drive pulley is provided in an upper end portion of the leg portion so as to be rotatable about a horizontal rotation shaft, and a lower end of a support wire wound non-slidably around the drive pulley is connected to an upper portion of the movable member. At the same time, the guide wire, which is non-slidably wound around the drive pulley and extends downward from the tangent opposite to the support wire, is turned upward by a guide pulley provided at a lower portion in the leg portion, and its end is changed. A tension coil spring is incorporated along the leg while being fixed to the lower portion of the movable member, and a lower end of the tension coil spring is fixed to the lower portion of the leg, and a biasing wire linked to the upper end is connected to the drive pulley. 3. The keyboard according to claim 2, wherein the driving pulley is coaxially fixed and is slidably wound around an urging pulley having a smaller diameter than the driving pulley, and is urged by an elastic restoring force of a tension coil spring in a direction in which the keyboard top plate moves upward. OA desk . 4. An interlocking pulley is fixed to an intermediate portion of a shaft provided between both legs, and front and rear ends of an interlocking wire wound around a center portion of the interlocking pulley are linked to front and rear portions of the monitor top plate. The OA desk according to claim 2 or 3, wherein the OA desk is interlocked so that the number of rotations of the shaft is proportional to the moving distance of the movable member. 5. The desk for office automation according to claim 4, wherein said shaft is rotatably connected to said rotating shaft.