JP3642391B2 - Work station - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a workstation for mounting an information device including a monitor such as a personal computer and a keyboard, and more specifically, a workstation capable of changing the positions of the monitor and the keyboard according to the posture of the user. About.
[0002]
[Prior art]
Conventionally, various desks and racks on which information devices including a monitor such as a personal computer and a keyboard are placed have been provided. For example, a PC rack is one in which shelves are fixed in multiple stages and the shelves are used as a monitor base and a keyboard base. However, the monitor base and the keyboard base are fixed, and are adapted to the posture and physique of the user. The height and position of the monitor base and keyboard base cannot be changed.
[0003]
There are also desks that can adjust the height of the monitor stand and keyboard stand. For example, in Japanese Patent Publication No. 7-114731, a column with a built-in gas spring is installed on the front and back of a common leg, a monitor table is mounted on each rear column, and a keyboard table is mounted on the front column. A mounting table that can be adjusted in height is described.
[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, but the monitor depends on the posture of the user sitting on the chair. The table and keyboard table cannot be adjusted. Therefore, when using such information equipment, if the user's posture changes, the interval and positional relationship with the monitor and keyboard will shift, so the user must maintain a preset posture, Maintaining the same posture for a long time is painful. Further, every time the user changes his / her posture, changing the height of the monitor base and keyboard base and the relative position with the chair requires time-consuming work.
[0005]
[Problems to be solved by the invention]
Therefore, in view of the above-described situation, the present invention intends to solve the problem that a monitor for mounting an information device including a monitor such as a personal computer and a keyboard and a monitor base according to the posture of the user. The object is to provide a workstation that can be changed easily and in a short time in conjunction with the position of the keyboard base.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a support base that is erected on a base body so that a monitor table can be raised and lowered, and a tiltable support arm that extends obliquely upward from the lower part of the support body or from the base body. A keyboard table is linked to the tip of the workstation, and a workstation that can be adjusted by synchronizing the moving operation of the keyboard table with the tilting of the support arm and the lifting operation of the monitor table is configured.
[0007]
Here, the keyboard base is linked to the support by the support arm so as to be movable in parallel, and the support is provided so that the height of the support can be adjusted with respect to the base. A keyboard base is linked to the tip of a tiltable support arm extending to the height, and the monitor base can be adjusted in height and moved back and forth with respect to the lift part of the support that moves up and down in synchronization with the keyboard base. It is a preferable configuration that it can be provided, or that the height of the keyboard base can be adjusted with respect to the tip holding portion of the support arm.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. 1 and 2 show the basic structure of the workstation of the present invention, and FIGS. 3 to 7 show examples of various operations, in which A is a workstation, B is a chair, C is a user, A base body, 2 is a support body, 3 is a monitor base, 4 is a support arm, and 5 is a keyboard base. In the figure, reference symbol P1 denotes a monitor composed of a flat panel such as a CRT or liquid crystal, P2 denotes a keyboard, and P3 denotes a mouse.
[0009]
As shown in FIGS. 2 to 3, the workstation A according to the present invention is provided with a monitor base 3 that can be moved up and down on a support body 2 standing on a base body 1 installed on a floor surface. A keyboard base 5 is linked to the tip of the tiltable support arm 4 extending obliquely upward from the lower part, and the movement operation of the keyboard base 5 and the lifting operation of the monitor base 3 are synchronized with the tilt of the support arm 4. It can be adjusted.
[0010]
More specifically, the base body 1 is a leg body extending in parallel on both sides, and the support body 2 is erected from the center of the base body 1 toward the rear. The support 2 is provided with an elevating part 6 that can be moved up and down, and the monitor base 3 is attached to the upper end of the elevating part 6. A support arm 4 is disposed obliquely upward from the lower portion of the support body 2, that is, toward the upper body of the user, and a base end portion of the support arm 4 is pivotally attached to the support body 2, and the support arm 4 is pivotally attached to a holding portion 7 to which the keyboard base 5 is attached, and the holding portion 7 moves in parallel even when the support arm 4 tilts. In the embodiment shown in FIG. 1, since the support body 2 is fixed to the base body 1, the base end portion of the support arm 4 may be pivotally attached to the base body 1.
[0011]
As an example of a mechanism for synchronizing the moving operation of the keyboard table 5 and the raising / lowering operation of the monitor table 3, the mechanism shown in FIG. 1 is a column-shaped lifting unit 6 slidable up and down with respect to the pipe-shaped support 2. And a guide pin 8 provided at the lower end of the elevating part 6 is positioned in a longitudinally long hole 9 opened in the side surface of the support 2, and an intermediate part between the guide pin 8 and the support arm 4. The keyboard base 5 is linked with a connecting rod 10 and moved back and forth along a rotation locus centering on the pivotal attachment portion 11 of the support arm 4 to the support 2 to be interlocked therewith. Thus, the elevating part 6 of the support body 2 moves up and down. Here, the amount of movement of the keyboard base 5 and the amount of elevation of the monitor base 3 can be set to an optimum relationship depending on the position of link connection by the connecting rod 10.
[0012]
Further, the monitor base 3 may be provided so as to be adjustable in height and movable back and forth with respect to the elevating unit 6, and may be adjustable in angle and adjustable in rotation so that the elevation angle of the monitor P1 can be adjusted. The keyboard base 5 may be adjustable in angle so that the elevation angle of the keyboard P <b> 2 can be adjusted with respect to the holding unit 7 that is supported by the support arm 4 and moves in parallel.
[0013]
Further, a document table 12 for placing or writing documents in the vicinity of the keyboard table 5 is held by a fixed arm 13 extending from the support 2, and the side of the keyboard table 5 is It is also preferable to provide a mouse base 14 supported by the holding part 7. It should be noted that the document table 12 can be independently adjusted for front and rear, right and left and rotation in a horizontal plane.
[0014]
Next, a usage example of the workstation A of the present invention will be briefly described with reference to FIGS. The workstation A shown in FIG. 3 has a structure in which the supporting body 2 and the holding portion 7 that holds the keyboard base 5 are connected by a parallel link using the two supporting arms 4. 6 and the keyboard base 5, that is, the support arm 4, includes a pinion provided on the shaft portion constituting the pivoting portion 11 of the support arm 4 and a rack provided on the elevating unit 6. It is possible to adopt a mechanism by meshing and other mechanisms. Further, the support body 2 is provided to the base body 1 so that the height can be adjusted by the first adjustment mechanism 15, and the height of the monitor base 3 is adjusted by the second adjustment mechanism 16 relative to the upper end of the elevating part 6. It is provided as possible. Further, the holding portion 7 is provided with a third adjustment mechanism 17 for adjusting the height of the keyboard base 5.
[0015]
First, as shown in FIG. 3, a user C sits on a chair B placed in front of the workstation A of the present invention, and the first adjustment according to the physique of the user C in the basic usage mode of the workstation A. The height of the monitor base 3 is optimally set by adjusting the mechanism 15 and the second adjustment mechanism 16, and the height of the keyboard base 5 is optimally set by adjusting the third adjustment mechanism 17. Normally, character input and CAD work are performed by operating the keyboard P2 and the mouse P3 with the posture normally seated on the chair B in the basic usage mode shown in FIG.
[0016]
Then, if you are tired of maintaining the same posture for a long time, take a reclining posture that leans deeply into the back of chair B as shown in Fig. 4, and operate the stopper mechanism (not shown) to release the locked state After that, when the keyboard base 5 is pulled to an optimal position, the monitor base 3 is lowered to an optimal height as the support arm 4 is tilted. Further, the monitor base 3 is moved forward to optimally adjust the distance between the monitor P1 and the eyes. It is also preferable that this back-and-forth movement of the monitor table 3 is interlocked with the lifting and lowering operation of the monitor table 3.
[0017]
Further, as shown in FIG. 5, when the user C tilts slightly rearward to move to a reclining posture and takes an easy posture with his legs crossed, the workstation A starts from the basic usage mode of FIG. The monitor table 3 is lowered and moved forward, but the third adjustment mechanism 17 is adjusted so that the user C's legs do not contact the keyboard table 5 to hold the holding unit 7. On the other hand, it is also possible to adopt a mode in which the keyboard base 5 is retracted slightly upward.
[0018]
FIG. 6 shows a basic usage mode of the workstation A when the physique of the user C is small and the monitor P1 is also small. In this aspect, the first adjustment mechanism 15 and the second adjustment mechanism 16 are in the state where the height is the lowest, and do not appear in the drawing. FIG. 7 shows a case where the monitor P1 is large. Needless to say, the height can be set to an optimum level according to the size of the monitor P1 placed on the monitor base 3, but the lifting / lowering operation of the lifting / lowering unit 6 with respect to the support 2 is supported by a built-in spring. In addition, if the tension of the spring can be adjusted according to the weight of the monitor P1, it is possible to lighten the monitor table 3 accompanying the moving operation of the keyboard table 5, that is, the monitor table 3 The monitor table 3 can be moved up and down by a substantially constant movement of the keyboard table 5 regardless of the weight of the monitor P1 placed on the monitor P1.
[0019]
The workstation A shown in FIGS. 8 and 9 is a more specific version of the workstation A shown in FIG. That is, the holding portion 7 that supports the keyboard base 5 is configured to be parallelly movable by forming a parallel link with the two support arms 4 and 4 with respect to the lower portion of the support body 2, and the inside of the pipe-shaped support body 2. The lower part of the columnar elevating part 6 is inserted into the upper and lower parts and can be slid up and down by rollers 18 and 18 provided on the elevating part 6, and a single support arm 4 and a guide pin 8 provided on the elevating part 6 are provided. A structure in which links are connected by a connecting rod 10 is employed.
[0020]
And what was illustrated as a stopper mechanism for fixing the setting position of the keyboard base 5 or the monitor base 3 in the holding | maintenance part 7 of the said keyboard base 5 centering on the pivoting part 19 of the upper end of the said support arm 4 is said. An arcuate gear portion 20 is formed at the end of the support arm 4, and the claw portion 22 of the lever 21 provided on the holding portion 7 so as to be movable back and forth is moved by the elastic biasing means comprising a compression coil spring 23 to the gear portion. 20 is a ratchet mechanism that meshes with 20. In this case, the lever 21 is pulled forward against the elastic biasing means, the claw portion 22 is separated from the gear portion 20, and the support arm 4 is moved by the upper pivot portion 19 and the lower pivot portion 11. After the keyboard 5 is moved to a desired position and the monitor 3 is moved up and down, the lever 21 is released and the claw 22 is engaged with the gear 20 again. Is fixed. In addition to the illustrated stopper mechanism, a brake wire as used in a bicycle brake mechanism is provided between the holding portion 7 of the keyboard base 5 and the support body 2, and it is moved up and down inside the support body 2. It is also possible to employ a mechanism that locks the lifting and lowering operation of the unit 6.
[0021]
【The invention's effect】
According to the workstation of the invention according to claim 1 as described above, the monitor stand is provided on the support body standing on the base body so as to be movable up and down, and extends obliquely upward from the lower part of the support body or the base body. The keyboard base is linked to the tip of the tiltable support arm, and the movement of the keyboard base and the lifting / lowering movement of the monitor base accompanying the tilting of the support arm can be synchronized to adjust the posture of the user. For example, the monitor base and the keyboard base can be simultaneously and easily changed to the optimal position in a short time according to the posture of sitting upright on the chair and the reclining posture leaning deeply into the backrest.
[0022]
According to the second aspect, since the keyboard base is linked to the support body by the support arm so as to be movable in parallel, the keyboard can always be used no matter how the keyboard base is moved. .
[0023]
According to a third aspect of the present invention, the height of the support body is adjustable with respect to the base body, and the keyboard base is linked to the tip of the tiltable support arm extending obliquely upward from the lower portion of the support body. Therefore, it is possible to set the initial height of the monitor base according to the user's physique and the size of the monitor, and then interlock the keyboard base and monitor base according to the user's posture. Even if it is adjusted, the optimum positional relationship is always maintained.
[0024]
According to the fourth aspect of the present invention, since the height of the monitor base can be adjusted and moved back and forth with respect to the lifting and lowering portion of the support body that moves up and down in synchronization with the keyboard base, The initial height of the monitor base can be set according to the height, and the optimal positional relationship is always maintained even if the keyboard base or monitor base is adjusted in conjunction with the user's posture after that. It is.
[0025]
According to the fifth aspect of the present invention, since the height of the keyboard base is provided so as to be adjustable with respect to the tip holding portion of the support arm, when the user's legs are long or when the legs are assembled, the user's The keyboard base can be retracted so that the legs do not hit the keyboard base, and the keyboard base can be adjusted to a desired height in the initial basic usage mode.
[Brief description of the drawings]
FIG. 1 is a simplified side view showing the basic structure of a workstation of the present invention.
FIG. 2 is a simplified plan view showing the positional relationship between the monitor placed on the monitor stand and the keyboard placed on the keyboard stand and the relationship between the document stand and the mouse stand.
FIG. 3 is a simplified side view showing a basic usage mode of the workstation of the present invention.
FIG. 4 is a simplified side view showing an aspect of a workstation used by a user in a reclining posture.
FIG. 5 is a simplified side view showing an aspect of a workstation used in a reclining posture in which a user crosses legs.
FIG. 6 is a simplified side view showing a basic usage mode of a workstation when used by a small user.
FIG. 7 is a simplified side view showing a basic usage mode of a workstation when a monitor is large.
FIG. 8 is a simplified side view showing a partially broken structure of a workstation having a stopper mechanism according to the present invention.
FIG. 9 is a partial cross-sectional view showing the stopper mechanism.
[Explanation of symbols]
A Work station B Chair C User P1 Monitor P2 Keyboard P3 Mouse 1 Base body 2 Support body 3 Monitor base 4 Support arm 5 Keyboard base 6 Lifting part 7 Holding part 8 Guide pin 9 Long hole 10 Connecting rod 11 Pivoting part 12 Document Base 13 Fixed arm 14 Mouse base 15 First adjustment mechanism 16 Second adjustment mechanism 17 Third adjustment mechanism 18 Roller 19 Pivoting part 20 Gear part 21 Lever 22 Claw part 23 Compression coil spring

Claims (5)

A monitor base is provided on the support body standing on the base body so as to be movable up and down, and a keyboard base is linked to the lower part of the support body or the tip of the tiltable support arm extending obliquely upward from the base body, A workstation characterized in that the movement operation of the keyboard table accompanying the tilting of the support arm and the raising / lowering operation of the monitor table can be synchronized and adjusted. The workstation according to claim 1, wherein the keyboard base is linked to a support body by the support arm so as to be movable in parallel. The support body is provided so that the height thereof can be adjusted with respect to the base body, and a keyboard base is linked to a tip end portion of a tiltable support arm extending obliquely upward from a lower portion of the support body. The listed workstation. 4. The workstation according to claim 1, wherein the height of the monitor table is adjustable with respect to the lifting / lowering portion of the support that moves up and down in synchronization with the keyboard table. The workstation according to any one of claims 1 to 4, wherein a keyboard base is provided so as to be adjustable in height with respect to a tip holding portion of the support arm.

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