JPS6219111A - Desk for keyboard work - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention provides a display (hereinafter referred to as CRT)
The present invention relates to a desk for keyboard work in which the CRT plate is movable up and down, and the CRT plate is tilted in the front and back directions, and the CRT plate is tilted.

[Conventional technology]

FIG. 6 is a perspective view of a conventional keyboard work desk disclosed in, for example, Japanese Utility Model Application Publication No. 59-160330, with a personal computer set on the desk.

In Figure 6, (41 is the equipment upper and lower steps, (61
20 RT, (7142 keyboard, (8) is the equipment upper and lower stick support, 03 is the equipment mounting plate, α! 9th movable screw, aη is the desk board.

a. is the keyboard plate.

[Problem that the invention seeks to solve]

A conventional keyboard work desk is constructed as described above, and by placing the ○RT (IQ) on the device mounting plate 03 and moving the vertical stick (41) up and down, and rotating it around the movable screw α, The vertical height of the CRT+61 and the angle of the CRT screen could be adjusted.

Therefore, with conventional keyboard work desks, only the top, bottom and angle of the CRT can be adjusted by the keyboard worker.
When the RT screen was difficult to see, the operator had to move the CRT. Most of the workers find it bothersome to move the CRT, and it is common for them to continue working on the keyboard while keeping the CRT front and back positions fixed. Working on a keyboard under such conditions causes severe eye fatigue, causing fatigue not only in the eyes but also in the entire body, which is not good for health.

This invention was made to solve this problem, and the CRT plate is vertically oriented.

To provide a desk for keyboard work which can be moved in the front and back direction and can also tilt a KQRT plate.

[Means for solving problems]

A keyboard work desk according to this invention.

It is equipped with a mechanism that allows the CRT plate to be moved vertically and longitudinally within a predetermined range, and a mechanism that allows the screen angle of the CRT to be adjusted.

[Action to solve the problem]

In this invention, the height of the CRT plate.

The longitudinal position, as well as the inclination and angle of the CRT plate, can be continuously adjusted within a predetermined range.

The height and viewing distance of the CRT screen, as well as the screen angle, can be set to suit the worker's visual acuity, room brightness, and even sitting height. It can reduce fatigue and physical fatigue.

〔Example〕

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

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a side view, FIG. 4 is a control circuit diagram, and FIG. 6 is a perspective view.

(1) Main body frame, (2) lower plate, +31
(41 is the fixed shirt), +51 is the sliding shaft holder, (6) is the sliding shaft, (7) is the sliding bearing, (8
) is the sliding shaft upper holder, (9) is the bearing for ball screw 1, and the handle is ball screw 1.0011 bevel gear 1. A2 is a horizontal shaft bearing.

03 & horizontal axis bracket, α←1 horizontal axis t, a!
9ss horizontal axis 2. αQ is the motor bracket for the keyboard desk, aη is the motor coupling for the keyboard, Nishiki is the motor for the keyboard, (['JG1 keyboard fixing plate, ■42 spacer block, caIl is the bracket for CRT car 1, fi)'' jcRT desk bracket 2.C
13 is a bracket for CRT vehicle 3. (Foundation) is CRT shaft lower holder, (C) f'! CRT sliding shaft, rAl'jC
RT sliding bearing, @? )k-! CRT sliding shaft upper holder, @ is CRT horizontal shaft bearing 5 wire is polscrew 2. C31)j
Ball screw 2 bearing, oni'x spacer 1, 03, helical gear 11 (to) washer, CI<1, CRT horizontal shaft bearing 2. (to) is CRT bra bracket 4li is C
RT horizontal axis 1 (371 is the CRT table motor.

OI is CRT horizontal axis 2. (To) is CRT horizontal axis coupling, 2nd is CRT table motor coupling, tH'zC
Bracket for RT! , U Natsu RT bracket cX 6 , (4:I!j(! RT desk frame, mouth 4 & 1
Front and rear sliding shaft brackets 1. (C) shows the front and rear sliding shaft brackets 2. (c) is the front and rear sliding shaft holder, (47+ is the front and rear sliding shaft, (4e is the front and rear sliding shaft bearing, (c) is the front and rear sliding shaft bracket, 31 wheels are the front and rear pole screw brackets) 1. (5)
1) t'! Front and rear ball screw brackets 2. (52)
) 2 front and rear ball screw bearings.

(53) & are front and rear ball screws, (54) are front and rear ball screw brackets! , (55) are the front and rear plates, (
56) is front and rear motor bracket), (57) is front and rear motor coupling, (58) ttCRT bracket 7
Natsu 59) is a CRT plate, (60) is an OR'r bracket 8 (61) is an OR'l' support plate, (62) is a rotating shaft, (65) +1 rotating shaft bearing, (6
4)! tTilt bevel gear 1. (65) 42 gear guide, (6S)i'! Tilt bevel gear 2. (67
) i”j stroke screw.

(68) is a tilt bracket. 1. , (+59) is a thrust spacer, (70) is a sliding bearing, (
71) is the gear shaft.

(72) Hasberi bearing 2. (7,5))j tilt plate 1, (75) is the cam floor, (76) is the tilt spacer, (77) is the tilt bracket) 2,
(7B) is chilled plate 2. (79) is tilt plate 3, (80) is slide plate, (81)
k'! Slide °Kite.

(82) is a keyboard position detection bracket, (83)
) is the keyboard detection rotating worm foil, (84)
is the keyboard upper limit limiter bracket, (s5) is the keyboard limiter, (8ri is the keyboard lower limit limiter bracket, (87) is the keyboard lower limit limiter,
(88) Beam Mitta Dock, (89) is CRT
(Desk position detection bracket), (9o)+toRT upper limiter bracket, (91) is CRT lower limit Mituta bracket, (92) is CRT upper limiter, (9
3) is the C1RT limiter dot, (94) is the front/rear position detection bracket, (95)! 2 potentiometer bracket), (96) is potentiometer, (97
) is position detection gear, (98) Fj rack, (9
9) is the front and rear limiter bracket, (102) is the tilt limiter bracket), (104) is the level hood,
(105) is cover 1° (106) is cover frame, (107) is electrical component mounting frame, (10
8) 42 Electrical parts are mounted on a plate.

(109) is the front cover frame, (110) is the front cover +, (111) is the back cover, (112)
) are both armrests.

(11K) is bellows, (114) is main unit foot cover,
(115) is the back cover of the legs, (116) is the force bar for both sole arms.

(117) is the back cover of both armrests, (11B)6
2-car arm rear cover, (119) is CRT plate.

(1211) is the keyboard plate, (121)
is a caster.

(122) is a mechanism part holder, and (124) is a keyboard drive mechanism.

(125) is the mechanism frame, (126) is the keyboard pointing mechanism, (127) is the ball nut 1,
(12B) is keyboard bevel gear 1, (129
) it keyboard bevel gear 2, (130) is the keyboard bevel gear! , (131) is the keyboard bevel gear 4. (132) is an arm plate,
(133) is the CRT up/down finger mechanism, (134) is the pole nut 2. (135) is CRT frame bracket)
, (156) as one frame bracket, (1
36) is a frame spacer, (137) &! C
RT front and rear drive mechanism.

(13B) is the OR'r front and back pointing mechanism, (139) is the CRT front and rear motor, (140) is the front and rear bevel gear 1
．． (141) is the front and rear bevel gear 2. (142) 4'!
The ball nut 3° (143) is the CRT tilt drive mechanism,
(144) is the tilt motor bracket, (14
5) is the tilt motor, (146) is the tilt motor coupling, and (147) is the keyboard bevel gear.
(148) ftaRT underground drive mechanism.

(149) is helical gear 2. (150) is a helical gear 3° (151) and a helical gear 4. (152) is the slotted gear 5.

The configuration of the main points of this invention will be described below. Main body frame (11 has level 7 dots on both sides (1[14
) and casters (121), a mechanism receiver (125) that supports a keyboard finger mechanism (126) behind the foot, a keyboard drive mechanism (122) that connects both legs (122) and a keyboard drive mechanism ( It consists of a mechanism frame (125) that supports a mechanical frame (124).

The keyboard pointing mechanism (125) is attached to the mechanism receiving part (123) on both sides of the lower plate (21) and the upper plate (3) which is firmly fixed by the fixed shaft (41) above the lower plate. Consists of a sliding shaft (6) fixed in the sliding shaft holder (51) in the direction, and a sliding bearing (7) fitted to this sliding shaft (6) and firmly attached to the keyboard upper and lower plates a'avt. The structure is such that the keyboard fixing plate Q9 can smoothly move straight in the vertical direction.Keyboard drive mechanism (124) &'!

A keyboard ball screw (Il) is rotatably supported by a ball screw 1 bearing (9) in parallel with the mechanism receivers (123) on both sides and the keyboard pointing mechanism (126), and is screwed into this ball screw member to fix the keyboard. Plate H
&C Fixed pole nut 1 (127), mechanism frame (125) with keyboard motor bracket UE
A keyboard motor Ql is supported by C, a keyboard bevel gear 1 (12B) is fixed to the output shaft end of this keyboard motor lJ'& via a keyboard motor coupling a, and keyboard bevel gears are engaged with this bevel gear IK to the left and right. 2 (129).

Keyboard bevel gear 3 (130) is fixed to one end of the shaft, and keyboard bevel gear 4 (137) and keyboard bevel gear 5 (147) are fixed to the other end of the horizontal shaft (horizontal shaft bracket) (horizontal shaft 164 supported by the mechanism frame so as to be rotatable at 1 m). .Horizontal shaft 2G51. It is fixed to the lower end of the keyboard ball screw and is composed of keyboard bevel gear 4 (131), bevel gear 5 (147), and K-shaped bevel gear aυ, which transmits the rotational movement of the keyboard motor to the keyboard ball screw θIK and connects the keyboard fixing plate αj. is a linear motion in the vertical direction.

Keyboard play) (120) )JBoth arms fixed to the keyboard fixing play H9 (112) K are mounted horizontally.

CRT up/down finger mechanism (133), CR via keyboard up/down play H91j, spacer block (to)
The T vertical drive mechanism (148) is fixed.

The CRT up/down pointing mechanism (1!+3) is an L-shaped structure that is symmetrically connected to a CRT bracket 121) and a CRT bracket 2'a fixed to the keyboard fixing plate Q9 via a spacer block. CRT bra bracket 6Gll is fixed to the upper end of the CRT bra bracket 3g3, and CRT is firmly fixed between the CRT sliding shaft lower holder Q and the CRT upper sliding holder (5).
RT sliding axis C! ! 9 e a It is fixed to the RT frame bracket (135), is composed of a sliding bearing (c) fitted to the CRT sliding shaft (5), and is fixed to the upper part of the CRT frame bracket (135). To smooth the vertical movement of a CRT desk frame 03.

The CRT vertical drive machine 144 is a CRT bra bracket 6
A ball screw bearing (
The CRT upper and lower ball screws are rotatably supported by the CRT upper and lower ball screws, and the ball nuts 2 (134) are fixed to the CRT frame bracket (135) and the lower ends of the CRT upper and lower pole screws (c). Fixed helical gear 1p3. CRT bracket)
CRT table motor 6η coupled to lυ, helical gear 2 (149) fixed to the output end of this CRT table motor C371 (KCRT table motor coupling)
, a helical gear 3 (150) that meshes with the helical gear 2 (149) is fixed, and a helical gear 4 (151) that meshes with the helical gear 1 (to) at the other end.

The CRT horizontal shaft 1 (to) is connected in a straight line and rotatably supported by the CRT horizontal shaft coupling (to), the CRT horizontal shaft bearing (c), and the bracket to which the helical wheel 5 (152) is fixed.
.

Consists of CRT horizontal axis 2 (to), CRT desk motor C
The rotational motion of 17) is transmitted to the left and right CRT upper and lower ball screws @, causing the pole nut 2 (134) to move linearly in the vertical direction.

The CRT table frame Q:H is equipped with a KCRT front ridge drive front crosspiece drive mechanism 7) located approximately at the center, and a symmetrical KCRT front/rear motion mechanism (158). The CRT front and rear drive mechanism (137) has a front and rear ball screw bracket 1fA and a front and rear ball screw bracket (51) arranged at the front and rear of the CRT desk frame 01, and the front and rear ball screws are rotatably provided via six front and rear ball screw bearings (52). (55)C
Front and rear motor brackets in front of RT desk frame 03) (5
6), and the front and rear bevel gear 1 (140) fixed to the output shaft of the CRT front and rear motor (1!+9) via the front and rear motor coupling (57). The front and rear bevel gears 2 (14) are fixed to the front ends of the meshing front and rear ball screws (53).
It consists of 1). CRT front and rear finger mechanism (157)
The front and rear sliding shaft brackets 1 are installed before and after the CRT desk frame works.
Front and rear sliding bearings (C) fixed to the 0 front and rear brackets (C) and fitted with the front and rear sliding shafts QnK. It has a structure that allows it to move smoothly in the front and rear directions.

Furthermore, CRT front and rear drive mechanism (137) K is front and rear ball screw (53) K screwed in pole nut 3 (14)
2) is included. This ball neck) 3 (142) is fixed to the front and rear pole screw brackets) 3 (54) and the two left and right front and rear sliding shaft brackets) il (41) are fixed to the front and rear plates (55). K is the CRT tilt drive Mechanism (1
43) is provided.

CtRT tilt drive mechanism (145) G2. A tilt motor (145) fixed by the front and rear plates (55), a tilt motor bracket (144), and a tilt bevel gear 1 (fixed to the output shaft of the tilt motor (145) via a chilled motor coupling (146)). 6
4) K-engaged tilt bevel gear 2 (66).

A stroke screw (6
7) A cam floor (75) consisting of cam floors (75) provided at both ends of the tilt plate (73) fixed to the upper end of this stroke screw (67).
is tilt plate 2 (78).

Tilt plate) 3 (79)K, CRT plate (1
19) is slidably and rotatably attached to the square hole provided on the rear center back surface. Also, tilt bevel gear 2 (
66) is provided with a tilt bracket IK that can be rotated once by a thrust spacer (69) VC.

The CRT plate (119) is a part of the cam floor (75) of the above-mentioned CRT tilt drive mechanism (143).

CRT bracket 8 (6
0) The rotating shaft (62) and the rotating bearing (63) form one rotating shaft (62) at the top of the CRT support plate (61) fixed to K.
) is supported to serve as a fulcrum for tilting. CRT
Bracket 8 (60) )j OR'r plate (5
9),C is connected to the CRT bracket nut (5B)
RT front and back fingering mechanism (138) K-connected front and rear sliding bracket) (fixed to the upper end of 41).

In addition, motor 0B for keyboard, motor 071 for CRT only
, CRT front and rear motors (139), tilt motors (14)
5) both have control circuits that can switch between forward and reverse rotation, and these forward and reverse rotations cause the keyboard drive mechanism (124) and the CRT vertical drive mechanism (14B) to operate.
The direction of the linear movement changes upward and downward, the CRT front edge forward movement drive mechanism (143) moves forward and towards the edge, and the CRT tilt drive mechanism (143) moves the CRT plate (119) with respect to the horizontal. The structure is such that the front slopes down and the back slopes down.

In addition, the keyboard drive mechanism (124), CRT vertical drive mechanism (14a), CRT front and back drive mechanism (137)
, CRT tilt drive mechanism (143) K is the upper and lower limit of the movable range, the keyboard motor it
s.

CRT table motor 07), CRT front 1 motor 1 (139)
.

A safety mechanism is installed in each case to interrupt the control circuit of the tilt motor (145).

Also, the vertical position of the keyboard plate (12), CRT plate (119), and CRT plate (119).
), and the KCRT plate (119)
It is also equipped with a detection mechanism that detects the inclination angle and each state. Descriptions of the configurations of the safety mechanism and position detection mechanism will be omitted.

The general configuration of the control circuit for each motor is shown in Figure 1. The control circuits for each motor α and C (139) and (145) are of the same circuit type, and the control circuits for each motor are , each circuit is configured.For example, (153) is a motor, (154) is a capacitor, and (155) is a power supply.

(156) is a forward/reverse switch, (157) is an upper limiter, (15B) is a lower limiter, (15
9) is a forward rotating contact.

(160) is a counter-rotating contact.

In the keyboard work desk constructed as vc@ as described above, when the forward/reverse selector switch (156) of the control circuit of the keyboard motor ha is turned to the forward rotation contact (159) [ON, the keyboard motor α sand is rotated in the forward rotation direction. Rotate to .

This rotation is caused by the mechanism receivers (
123) K supported keyboard ball screw (lIK
, keyboard bevel gear 1 (12B), horizontal axis 10
4. Transmitted by the horizontal axis 20 and the bevel gear 1, etc., the keyboard ball screw αI of 9 double-length sides rotates, so the ball nut fixed to the keyboard top and bottom grates 0 starts to move up and down.

The keyboard upper and lower plates 0 are connected to both sides of the main body frame (1) by the keyboard fingering mechanism (12+6), that is, the sliding shaft (6) and the sliding bearing () attached to the keyboard fixing plate 09. Since it is supported, the keyboard fixing plate 09 moves upward very smoothly. Therefore, the keyboard plate (120) fixed to the keyboard fixing plate 09 via both the armrests (112) starts to move upward smoothly. Set the forward/reverse selector switch (156) to the forward rotation contact (159) side.
If you continue, the keyboard plate (120) 2 will continue to rise, and when the keyboard operator turns off the forward/reverse switch (156) at the desired height, it will stop at that height. Set the forward/reverse selector switch (156) to the forward rotation contact (159) side K.
ONI, if you continue, keyboard play at the upper limit height)
(120) reaches and the upper limiter (157) reaches 0IF
Since the IF switch turns off the power to the keyboard motor, the keyboard plate (120) stops at the upper limit height. Conversely, connect the forward/reverse selector switch (156) to the reverse rotation contact (
160) Side KOH and keyboard play) (120
) moves downward.

In the same way as moving keyboard play) (120) upward, when the desired height K is reached, press the forward/reverse switch (120).
156), the keyboard plate (120
) stops at its desired height. Further, if the keyboard plate (120) continues to be moved downward, it will stop at the lower limit height. Therefore, the keyboard operator can continuously set the height of the keyboard plate to a desired position between the upper and lower height limits. Keyboard fixing plate (CRT up and down finger mechanism (133) on I9, CR
Since the T vertical drive mechanism (148) is fixed, these also move simultaneously with the vertical movement of the keyboard plate (120). Therefore, the CRT up/down finger mechanism (1
33) and C fixed to the CRT vertical drive mechanism (148)
RT frame bracket (135) K fixed CR
CRT plate (t1
9) tL keyboard play) Moves up and down along with the up and down movement of (120). Then, connect the forward/reverse switch (156) of the control circuit of the CRT desk motor (b) to the forward rotation contact (1).
59) When the side KOH is turned on, the CRT desk motor G? ) rotates in the forward direction.

This rotation is caused by helical gear 2 (149) and helical gear 3.
(150), helical gear 4 (151), helical gear 5 (152), CRT horizontal axis 1 (to), CRT horizontal axis 2 (to), CRT bracket) 6 (4)
The CRT upper and lower ball screws on both sides supported between the CRT bracket 3) and the CRT bracket 3) are connected to the CRT upper and lower ball screws.
4) Move straight upward. CR fixed between CRT bracket 3) and CRT bracket 603
Smoothly move the CRT frame bracket (135) to which the sliding bearing (E) fitted to the T sliding shaft (2) and the ball nut (154) are fixed upward. Therefore, the CRT frame bracket (135) (119) 4'! (119) 4'! Smooth Ic0RT moves upward guided by the up and down finger mechanism (148). Similar to the operation of the keyboard plate (120) (1c CRT play) (11
9), the keyboard operator continuously changes the height of the CRT display (119) by operating the forward/reverse changeover switch (156).

A display (CRT, etc.) can be set at a height that is easy to see. When the CRT plate (119) is at the upper or lower limit, the power supply to the CRT desk motor (b) is cut off in the same way as the keyboard play (120).

Next, set the forward/reverse selector switch (156) of the control circuit of the KCRT front/rear motor (139) to the forward rotation contact (159) side IC0N.
Then, the CRT front and rear motors (139) rotate in the forward rotation direction. This rotation is caused by the front and rear bevel gears 1 (140) and the front and rear bevel gears 2 (141).
Front and rear ball screws (53
), and the rotation of the front and rear ball screws (55) causes the pole nut a (142) fixed to the two front and rear plates (55) to move straight forward. Front and rear plates (
55) is guided by the 9 front and rear plates (55) Gj by CRT front and back fingering mechanisms (138) fixed to the left and right sides of the CRT table frame (4m) and moves smoothly forward.

Therefore, the left and right front and rear sliding shaft brackets are attached to (55) 3 (41, CRT plat 7 (58)
, CRT plate (11) supported by CRT bracket 8 (60) and CRT tilt drive mechanism (143).
9) is a CRT forward and backward pointing mechanism (138) K that moves smoothly forward.

Keyboard plate (120) or CRT plate (1
19), the keyboard operator should move the forward/reverse switch (1
56), the forward and backward direction KCRTOR (
119) can be set. When the CRT blade (119) is at its front and rear limits, the power cut-off of the CRT front and rear motors (139>) is the same as the operation of the keyboard plate (120).

Further, when the forward/reverse selector switch (156) of the control circuit of the tilt motor (145) is turned to the forward rotation contact (159) side KOH, the tilt motor (145) rotates in the forward rotation direction.

The rotation of the tilt motor (145) is controlled by the tilt bevel gear 1.
(64) to the tilt bevel gear 2 (66), and the stroke screw (67) screwed into the nut of the tilt bevel gear 2 (66) moves upward.

CRT plate (119)! 1. It is pushed up by a sliding and rotatable cam floor (75) K attached to the upper end of the stroke screw (67) at the rear central back surface thereof.

The CRT plate (119) has two symmetrical plates in front of it.
CRT bracket) 8 (60) K fixed (3R
The CRT plate (119) is rotatably supported by the rotating shaft (62) at the top of the T-fulcrum play (61).
) slopes forward and downward. On the other hand, use the forward/reverse switch (156
) to the reverse rotation contact (160) side KOH, the CRT play (119) tilts backward downward. Therefore, the keyboard operator must use the CRT plate (119)
The T screen can be set to any desired angle by operating the forward/reverse switch (156). Please note that the CRT plate (
Tilt motor (119) at the upper and lower limits of the tilt angle
The power cutoff in 45) is the same as the operation in keyboard play) (120).

Next, the operations performed by the keyboard operator will be specifically explained. When starting to work on the keyboard, set the height of the chair and keyboard (120) so that you can sit comfortably and easily operate the keyboard, and set the height of the CRT plate (119) to the height of the CRT plate (119).
The line of sight of the keyboard operator and the height of the CRT screen can be set as desired by operating the forward/reverse switch (156) for the KCRT screen (for example, as shown in Figure 4).
119-1).

For example, the front/reverse position of the CRT play (119- Set as in 2). Furthermore, the tilt angle of the KCRTOR (119) can be determined by operating the forward/reverse tilt switch (156), depending on the vertical height of the CRT play (119), and the relationship between the CRT screen and the line of sight. (119-3)
Set it like this. Note that the setting order of the height 0 position (119) and the tilt angle can be set as desired by the operator to make it easier to read the CRT screen.

In the above embodiment, the CRT play) (119) and the k2 keyboard play) (119) can be moved in the vertical direction at the same time, but the invention is not limited to this.
, CRT plate (119) is keypad brake) (
119) may be configured to move up and down completely independently. The CRT plate (119) and the keyboard plate (120) can be driven simultaneously and the CRT plate (119) can be driven simultaneously.
If 9) can be driven further up and down, the CRT
This has the advantage that the driving range of the plate (119) only in the vertical direction can be reduced, and the driving/indicating mechanism can be simplified.

In the above embodiment, keyboard play) (120).

Each drive mechanism of the CRT plate (119) is composed of parts such as a forward/reverse rotation type heptad ball screw feeding mechanism, but is not limited to this, and may be composed of a hydraulic feeding mechanism or the like. It can even be something.

In this case, it is also possible to have a finger mechanism.

〔Effect of the invention〕

As explained above, this invention has a structure in which the CRT plate can be set to any three degrees of freedom, including vertical, longitudinal, and inclination, so that it can be used by both tall and short people, people with good and poor eyesight, and even people with good or poor eyesight. Depending on the brightness of the room, keyboard workers can easily set the position and angle of the KCRT screen to suit their own preferences.
It has the effect of being comfortable and allowing you to work on the keyboard without causing eye fatigue.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a top view, Fig. 3 is a side view, Fig. 4 is a perspective view, Fig. 5 is a configuration diagram of a control circuit, and Fig. 6 is a conventional FIG. 2 is a perspective view of a keyboard work desk. In the figure, (1) is the main body frame, and (6) is the sliding shaft. (7) is a sliding bearing, the wire is a keyboard ball screw, and Qlk
The keyboard motor 6a9 is the keyboard fixing plate, @ is the CRT sliding shaft, and (g) &'j is the CRT sliding bearing. W is the CRT top and bottom pole screw, 071&'ICRT desk motor, 雛 is the front and rear sliding shaft, (C) is the front and rear sliding bearing, (
53) are front and rear ball screws, (112) are both armrests, (119) is a CRT plate, and (120) is a keyboard plate. (124) is 1 keyboard drive mechanism, (126) is keyboard up and down finger mechanism, (127) is ball nut 1, (133) is CRT up and down finger mechanism, (1
34) is pole nut 2° (139) is the CRT front and rear motor, (142) is pole nut 3. (143) is C
RT tilt drive mechanism, (145) is the tilt motor,
(148) is the CRT vertical drive mechanism. (67) is a stroke screw, and (153) is a forward/reverse changeover switch. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] In a keyboard work desk having a keyboard plate on the body frame and a CRT plate behind the keyboard plate, a keyboard fixing plate equipped with the keyboard plate; a CRT sliding mechanism and a CRT vertical drive mechanism fixed to the keyboard fixing plate; , a CRT desk frame that is attached to the CRT sliding mechanism and the CRT vertical drive mechanism and moves linearly in the vertical direction; a CRT plate back-and-forth sliding mechanism and a back-and-forth drive mechanism provided in the CRT desk frame; and the above-mentioned back and forth fingering mechanism. A front and rear plate that is fixed to the front and rear drive mechanism and moves linearly in the front and back direction, and a CRT that is fixed to the front and rear plate and supports the CRT plate.
A keyboard work desk comprising a tilt drive mechanism, capable of driving a CRT plate in the vertical direction and front and rear directions, and further capable of tilting the CRT plate forward and downward relative to a horizontal state and backward and downward.