JPH0622486B2 - Desk with built-in display - Google Patents

Description

TECHNICAL FIELD The present invention relates to a desk in which a display of an OA device is mounted on a top plate so as to be retractable.

<< Prior Art >> A variety of desks capable of smoothly performing both conventional office work that uses paper as an information medium and office work that uses an OA device, and a display of the OA device mounted on a desk top plate so that the display can be freely retracted. Has been proposed. In order to save the installation space, an OA device is disclosed in, for example, JP-A-62-118416.
The publication discloses a structure in which a display is provided at the center of a desk so as to be able to move up and down, and a structure is disclosed in which the display is lightly moved up and down by balancing it with a fixed pulley. Further, in Japanese Patent Laid-Open No. 63-43607, a display is mounted on an elevating table provided on the back side of a desk so that the display can be retracted and driven by an electric motor, and the back side top plate having a rear edge pivoted is opened rearward. There is disclosed a desk having a structure in which a front side top plate is slidably housed under the lifting table after the lifting table is moved upward, and a keyboard is pulled out from under the lifting table. Further, Japanese Utility Model Laid-Open No. 63-116802 discloses. , The display is rotatably mounted around the horizontal edge of the horizontal axis on the rear edge of the recess on the desk, and the back of the display becomes the desk top when the display is pushed down into the recess. A structured desk is disclosed.

<Problems to be solved by the invention> In actual office work, it is essential to take notes and confirm input data by referring to documents even in office work using an OA device. Writing instruments and paper clips are often placed on and off the desk. However, with the conventional structure as described above, a gap or a recess is formed between the keyboard and the display or between the display and the top plate surface of the desk when the display appears, so that a writing instrument, a clip, or a There is a problem that staples etc. fall down and hinder smooth office work, especially when the display is stored without noticing that the stationery dropped in the display storage part, the display surface and the lifting device were damaged. .

Further, for example, in the above-mentioned first conventional structure, since the lifting and lowering of the display is balanced by the weight, there is a problem that the desk becomes very heavy and delicate against vibrations. There is a problem that the lifting structure becomes very complicated.

Therefore, this invention can be widely used on the desk even when the display is used, and there is no gap or recess formed on the desk surface.
An object of the present invention is to obtain a desk with a built-in display that can be put in and taken out by a simple operation, has a simple structure, and can be provided at low cost.

<< Means for Solving the Problem >> The desk of the present invention has a display 11 on the back side of the desk.
Is provided so that it can be raised and lowered. The display 11 is mounted on elevators 16 and 16a mounted on storages 12 and 12a provided on the inner side below the desk top plate. Storage unit 12, 12a
Can be formed in the shape of a vertical hole inside the back plate 1c of the desk, or can be formed along the back of the back plate 1c of the desk as shown in FIG. Lifting table 16, 16a
Is mounted so that it can be vertically moved or rotated about a horizontal axis in the front-rear direction of the desk. At the upper ends of the storage parts 12 and 12a, an upper surface 1 which is flush with the top plate surface 1a of the desk when closed.
Lid plates 14, 14b having 4a are provided. This lid plate may be structured so as to be lifted up and down integrally with the lift stand 16a and opened and closed when the lift stand 16a is provided so as to be rotatable up and down, but when the lift stand 16 is vertically moved up and down,
It is a member separate from the lift table 16. Lifting table 16 and lid 14
By using as separate members, the inertia and operating space of the lifting / opening / closing member can be reduced, and the lid plate 1 when the lid plate is closed
It is possible to more easily realize a good close contact state between the desk 4 and the desk top plate 1.

It is easy to raise and lower the lifts 16 and 16a by a biasing spring 24 that biases the lifts 16 and 16a upward in the entire stroke range from the lower end to the upper end and the operator's pressing operation. . In this case, the storage unit 1
2 and 12a are provided with an automatic locking mechanism 25 that locks the lift tables 16 and 16a at their lowered positions, and a release mechanism 30 that releases the locking mechanism. When the cover plate 14 is provided separately from the lift table 16, the cover body 14 is also provided with an urging spring for urging in the opening direction and an automatic locking mechanism 29 for locking in the closed state, and the release mechanism 30 is provided. Therefore, it is convenient that the lifting mechanism 25 and the lid locking mechanism 29 are simultaneously opened. The automatic locking mechanism referred to here means the lift tables 16, 16
The locking projection is automatically pushed in by the lowering or closing operation of a or the lid plates 14 and 14b, and the lowering or closing end thereof is projected again by a spring or the like to lock the lifting table or the lid plate. Well, various structures are known.

As a structure for elevating and lowering the elevators 16 and 16a more safely and reliably, a structure in which the elevator detection sensors 51a and 51b and the elevator locking mechanisms 52a and 52b are provided at the ascending and descending positions of the elevator can be adopted. The locking mechanism 52a, 5
When the operator gives a release signal to 2b, it is possible to control the release operation of the locking mechanisms 52a and 52b by referring to the output signals of the sensors 51a and 51b and the operating state of the OA device.

The elevating tables 16 and 16a are mounted on the storage sections 12 and 12 when they are raised.
Display support 1 that fits in the opening 13 of a
Eight. The display 11 is preferably mounted on the display support 18 via a tilt mechanism 22.

When the computer main body and the storage device are also incorporated in the desk, as shown in FIG. 3, the main body 5 having an external storage device such as a flexible disk device is stored in the center of the sleeve portion of the desk, and the upper and lower drawer portions thereof are stored. It is convenient to use a tray 6 for storing small items and a file storage shelf 7 respectively.

<Operation> Considering the usability of the user, it is desired that the desk be widely used. For that purpose, it is effective to use a small space on the desk and a small surface area of the rising unit. The present invention, unlike the conventional one, realizes a space saving of the elevating unit on the desk and a large desk area when the display appears.

Display 11 when not in use
Is stored under the top plate behind the desk. At this time, the display storage units 12 and 12a are closed by the cover plates 14 and 14b, and the upper surface 14a of the cover plates is flush with the desk top surface 1a.

When the lid plates 14 and 14b are opened and the lifts 16 and 16a are raised, the display 11 is pulled out onto the desk top plate. The storage parts 12, 1 after the cover plates 14, 14b are opened
The opening 13 of 2a is closed by fitting the display support 18 of the lifted up / down table. At this time, the upper surface 18a of the display support 18 is at the same position as or higher than the top surface of the desk. Opening 1 of the storage part 12, 12a
Although the display support base 18 itself fitted in 3 cannot be tilted or rotated, if the display 11 is mounted on the display support base 18 via the tilt mechanism 22, the display 11 can be moved in the direction of the illuminating light and the physique of the operator. You can orient yourself in any direction you like. The keyboard 4 is operated in a state where it is pulled out by a top plate removing operation and a keyboard pulling out or reversing operation.

In the case where the urging spring 24 for raising the lifts 16 and 16a and the automatic locking mechanism 25 are provided, the display 1
When the user presses 1 by hand, the display 11 is stored in the storage portions 12 and 12a and is automatically locked, and when the release device 30 releases the automatic locking mechanism 25, the lifts 16 and 16a move the spring 24. It rises due to the biasing force. The lid plate 14 is provided separately from the lift table, and an urging spring for urging the cover plate 14 in the opening direction and its automatic locking mechanism 29 are provided. In the structure which is released together with the display 1, the display 1 is closed by pressing the display 11 by hand and then closing the cover plate 14.
1 is stored, the release device 30 automatically locks the mechanism 25,
By releasing 29 at the same time, the lid plate 14 having a small mass is first opened, and then the lift 16 is raised.

Lifting platform detection sensors 51a and 51b and lifting platform locking mechanisms 52a and 52b are provided at the raised and lowered positions of the lifting platforms 16 and 16a.
In the device provided with, for example, when the operator gives a release signal while the display is stored, the control power of the device is turned on to release the lower end locking mechanism 52b, the lift 16 is raised, and the upper end sensor 51a is activated. Is detected, the upper end locking mechanism 52a is operated to lock the elevating table 16 at the raised position, and then the display 11 is in a power-on state, and when the operator gives a release signal when the display is pulled out. The power of the display 11 is shut off, the upper end locking mechanism 52a is released, and the lower end locking mechanism 52b is operated when the lowered lift table 16 is detected by the lower end detection sensor 51b. The operation can be controlled more safely and securely.

In the case where the lift table 16 is guided by the rail 15 on one side thereof, by providing the anti-sway wheel 38 on the opposite side, it is possible to effectively prevent the shake of the lift table 16 during lifting.

<Embodiment> In FIGS. 1 to 4 showing an embodiment of the present invention, 1 is a top plate of a desk, 2 is a sleeve part of the desk, 3 is a drawer plate provided under the front top plate of the desk, 4 is a keyboard placed on a drawer board, 5 is a computer body stored in the center of the sleeve of the desk, 6 is a drawer type tray provided on the upper part of the sleeve, and 7 is a drawer type file provided on the lower part of the sleeve. It is a storage shelf.

The drawer plate 3 is mounted slidably in the front-rear direction of the desk by being guided by a rail (not shown), and allows the keyboard 4 mounted thereon to be pulled out from the front edge 1b of the top plate. Then, the keyboard 4 is housed by pushing it under the top plate.

Reference numeral 11 is a display, 12 is a storage hole of the display 11 provided on the back side of the desk, 13 is an opening of the storage hole, 14 is a cover plate for closing the opening 13, and 15 is a vertical direction provided on the back surface of the storage hole 12. Rails, 16 are lifts supported by a slide guide 17 on the rails 15 so as to be lifted and lowered. The lifts are provided with a display support 18 and a bracket 19, and the display 11 has a display support via a tilt mechanism 22. It is mounted on 18.

Reference numeral 23 is a take-up roller rotatably mounted on the bracket 19 of the lift table, and 24 is a take-up spring having a base end wound around the take-up roller 23 by its own elasticity and an upper end being fixed to a stationary member.
A constant force spring device 32 is configured by both. Reference numeral 25 is a bottom latch mounted on an immovable member so as to be movable back and forth, 26 is a locking piece formed on the bracket 19 of the lifting table, 27 is a release button, 28 is a latch rod, and 29 is an upper latch for locking the cover plate 14. Is. The upper latch 29 and the bottom latch 25 are connected by a latch rod 28 and are simultaneously released by a release button 27, and the whole of them constitutes a release mechanism 30.

The lid plate 14 is pivotally attached to the top plate 1 by a hinge 31, is biased in the opening direction by a coil spring (not shown) around the hinge 31, and the closed state is held by the upper latch 29. When the release button 27 is pressed, the upper latch 29 is unlocked and the lid plate 14 is opened. When closed, the cover plate 14 closes the opening 13 of the display storage hole without any gap, and the upper surface 14a thereof is flush with the top plate surface 1a.

The constant load spring device 32 urges the lift table 16 upward by the force of the winding spring 24 to wind the winding roller 23. When the lift table 16 is located at the lower end, the locking piece 2 is held.
6 engages with the bottom latch 25 to lock the lift table 16. When the release button 27 is pressed, the bottom latch 25 is retracted, the lifting base 16 is unlocked, and the display 11 is pulled out onto the top plate 1 by the biasing force of the constant force spring device 32. In the state in which the display is pulled out, the display support portion 18 of the elevator is fitted into the opening 13 without any gap, and the upper surface 18a thereof is flush with the top plate surface 1a.

The latch 29 that locks the cover plate 14 and the latch 25 that locks the lift 16 are simultaneously released by a single release button 27. When the latches 29 and 25 are simultaneously opened, the lid plate 14 having a small mass is opened quickly, and the display 11 is slowly lifted from the opening 13 after being opened. The mutual relationship between the operation of the cover plate 14 and the lift table 16 can be easily set by selecting the strength of the spring that urges both. The display 11 is preferably raised slowly and smoothly, and this requirement can be satisfied by using the constant force spring device 32 having the structure shown in the illustrated embodiment.

The tilt mechanism 22 includes an arc guide 35 on the upper surface of the display support 18 and a swing base 36 guided by the guide, and the elevation angle of the pulled-out display 11 can be freely set.

The display 11 in the pulled-out state is pushed into the storage hole 12 by being pushed down by hand, and the lifting platform 16 is locked by the bottom latch 25 at the lower end and stored. Thereafter, the lid plate 14 is similarly pressed down by hand to close the opening 13, and the lid plate 14 is locked by the upper latch 29. The bottom latch 25 and the abber latch 29 have a structure in which the locking projections are biased in the projecting direction by springs, and the upper surfaces of the locking projections are inclined.
6 and the closed lid plate 14 are automatically locked. Since such an automatic locking mechanism is known in various structures, any structure may be used, and solenoids or the like may be used to release the latches 25 and 29 by electric signals. You can also

In the embodiment shown in FIGS. 1 to 4, the rail 15 is arranged on the inner surface of the storage hole 12, and the elevating table 16 tends to move downward due to the weight of the display 11. Therefore, a wheel 38 that rolls on an auxiliary rail 37 that is vertically provided on the front surface of the storage hole 12 is provided in the upper front part of the lifting table 16 so that the wheel supports a moment in the forward tilt direction of the lifting table 16 to lift the lifting table. 16 The structure is designed to prevent runout in the front-down direction when moving up and down.

FIGS. 5 and 6 are views showing another example of the storage structure of the keyboard 4, and FIG. 5 is a reversible storage type in which the keyboard fixing plate 41 is pivotally supported on the top plate 1 by the pins 42. The figure shows a top plate detachable type having a structure in which a part 43 of the top plate located above the keyboard 4 is removed and dropped inward.

FIG. 7 shows another example of the lifting drive device for the lifting table 16, which has a structure in which a ball screw 45 driven by an electric motor 44 and a ball nut 46 mounted on the lifting table 16 are screwed together. In this structure, the power switch 30 of the electric motor 44 is
a serves as a release mechanism of the lifting table 16, and the power switch 3
The display 11 is pulled out and stored by inserting 0a in the forward or reverse direction.

Further, in FIG. 7, the tilt mechanism 22 is provided on the turntable 34 that is rotatably fitted to the display support portion 18 of the lifting table, and the elevation angle tilt mechanism 22 of the display 11 allows the tilt mechanism 22 to move in a horizontal plane. The direction can be freely set by the turntable 34.

FIG. 8 is a perspective view showing an example in which the lifting table is of a rotary lifting type. The lifting table 16a is pivotally supported by a stationary member on the desk side by a pivot pin 47, and is similar to FIGS. Constant force spring device 32
Is biased in the ascending direction, that is, in the counterclockwise direction in the figure. Reference numeral 21 in the drawing denotes an arc-shaped guide plate fixed to the elevating table 16a to receive the winding spring 24. The tip of the winding spring 24 is fixed to the tip of the guide plate 21, and the take-up roller 23 is located on the desk side. It is pivotally attached to a stationary member. The lid plate 14b is the lifting table 1
It is formed integrally with 6a into an L shape. The display 11 is mounted on the lift 16a via the tilt mechanism 22 and the turntable 34, as in the case of FIG.

The display storage portion formed on the desk may be formed along the outside of the back plate 1c of the desk, as shown in FIG. In the structure shown in FIG. 9, a recessed portion in the vertical direction is formed in the back plate 1c to form a storage portion 12a, and an elevating table 16 is provided in the storage recessed portion. Guide rail 15 of lift 16
Are provided on the left and right wall surfaces of the storage recess 12a, and the lid plate 14 is laterally opened. When the display 11 is further thinned, the rear plate 1c may be left as a flat plate and the rear edge of the desk top plate 1 may be slightly rearwardly protruded to form the display storage portion. If the display 11 is thin, the standing height when the cover plate 14 is opened can be set to a height that hides the support portion of the display. Therefore, a hinge is provided on the front side to cover the cover plate 14.
May be opened to the front side, and it is possible to more reliably prevent stationery and the like from falling into the storage portion without impairing the visibility of the display.

FIGS. 10 to 14 are views showing an embodiment in which lift detection sensors 51a and 51b and lift lock mechanisms 52a and 52b are provided above and below the display storage hole 12. The lifting table locking mechanism 52 has a structure in which the bottom latch 25 of the first embodiment can be released by a solenoid, and as shown in FIG. 11, it engages with the locking piece 26 on the lifting table 16 side. A spring 55 applies a biasing force in the engaging direction to a lock piece 54 having a stop tip 53, and a solenoid 56 causes the spring 5 to move.
The lock piece 54 can be retracted against 5 and the locking mechanism 29 of the lid plate 14 has the same structure.
Further, the illustrated lift detection sensor 51 is a transmission type photoelectric sensor as shown in FIG. 12, and has a structure in which the lift 16 blocks the optical path. Depending on the control mode, it is possible to use the locking mechanism 52 having the structure of releasing by the manual release mechanism as in the first embodiment or the structure of moving the locking tip 53 forward and backward only by the operation of the solenoid.
It is also possible to use a microswitch or other sensor as the sensor 51.

FIG. 13 is an electrical connection diagram of the device having the structure of FIG. 10, and 57 is a control device. With this control device, the display 11 can be turned on only when the upper end sensor 51a detects the lift table 16,
In addition, according to the output signal of the sensor 51, the lifting platform locking mechanism 5
The control power source is automatically shut off after the lower end sensor 51b detects the lift table 16 or after the lower end locking mechanism 52b is operated so as to operate the second solenoid 56.

Next, the control operation will be described in detail with reference to the flowchart of FIG. In the storage state of the display, the power of the control device 57 and the power of the display 11 are off, and in particular, the power of the display 11 can be turned on in the storage state. When the release button 27 is pressed in this state, the control power is not turned on, so the control branches to step 58, and the control power is turned on first. When the control device 57 is turned on, the lower end locking mechanism 52b is first
And the lid plate locking mechanism 29 is released, and the lift table 16 is provided in the opening 13 after the lid plate 14 is released by the constant force spring device 32.
Wait for the rising. When the lift table 16 reaches the rising end and the upper end sensor 51a outputs a detection signal, the upper end locking mechanism 52a operates to prevent the lowering of the lift table 16, and in this state, the display 11 can be turned on. Become.

On the other hand, when the display 11 is appearing on the desk, the power of the control device 57 is turned on. When the release button 27 is pressed in this state, the control branches to step 59. The upper end locking mechanism 52a is released. By this operation, the power of the display 11 is cut off, and the control device waits for the display 11 to be pressed. When the display 11 is pressed down and reaches the lower end, the lower end sensor 51b detects the lift table 16 and the lower end locking mechanism 52
b is advanced to hold the lift table 16, and the power supply of the control device 57 is cut off. Then, the operator closes the cover plate 14 to complete the storage of the display.

<< Effects of the Invention >> The desk of the present invention becomes a normal office desk by storing the display under the top plate, and becomes a computer operation desk by pulling it out, and the operation of pulling out and storing the display is extremely easy and takes a short time. You can do it smoothly, and you can smoothly handle frequent conversions. Further, when the display is pulled out, the opening of the storage part is completely closed and no recess or gap is formed on the desk top plate, so there is no risk of damaging the device by dropping a writing instrument or the like. Furthermore, the structure is extremely simple, the desk top plate surface can be widely used even when the display is pulled out, and it is also possible to mount the display via the tilt mechanism, turntable, etc. so that the direction of the screen can be freely set. A more suitable work environment can be provided.

[Brief description of drawings]

1 to 4 are views showing a first embodiment of the present invention. FIG. 1 is a sectional side view showing a state in which a display is pulled out, FIG. 2 is a sectional side view showing a stored state, and FIG. 3 is a stored state. FIG. 4 is a perspective view showing a state, and FIG. 4 is a perspective view showing a support mechanism of the lifting table. 5 and 6 are cross-sectional side views of a main part showing another example of the mounting structure of the keyboard, FIG. 7 is a cross-sectional side view showing another example of the lifting platform driving device, and FIG. 8 is a lifting platform. FIG. 9 is a perspective view of a main part showing another structure, and FIG. 9 is a perspective view showing another structure of the display storage part. FIGS. 10 to 14 are views showing a second embodiment of the present invention. FIG. 10 is a sectional side view showing a state in which a display is pulled out, FIG. 11 is a detailed side view of a locking mechanism, and FIG. 12 is a sensor. Detailed side view of the first
FIG. 3 is a wiring diagram of the control system, and FIG. 14 is a flow chart showing the control operation. In the figure, 1: desk top plate, 3: drawer plate 4: keyboard, 5: computer main body 11: display, 12,12a: storage part 13: storage part opening, 14,14b: lid plate 16,16a: lift Table, 18: Display support 22: Tilt mechanism, 24: Roll spring 25: Bottom latch, 27: Release button 29: Upper latch, 30: Release mechanism 32: Constant force spring device, 37: Auxiliary rail 38: Wheel, 51 : Lifting platform detection sensor 52: Lifting platform locking mechanism, 56: Solenoid 57: Control device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography SHO 62-111436 (JP, U) ACT 59-160330 (JP, U)

Claims (8)

[Claims] 1. A lid plate (1) that can be freely opened and closed on the back side below the top plate of the desk.
4) is provided with a storage unit (12, 12a), the storage unit is equipped with a linear movement type lifting platform (16), the lid plate is a separate body from the lifting platform and one side thereof. Is attached to the desk (1) by pivot, and the top plate surface (1a) of the desk is closed when the desk is closed.
Has a top surface (14a) that is flush with, and the elevator has a display support portion (18) that fits exactly into the opening (13) of the storage portion (12, 12a) when it is raised. A desk with a built-in display, characterized in that a thin display of a computer device is mounted on the display support. 2. A cover plate (1) that can be freely opened and closed on the back side below the top plate of the desk.
4b) is provided with a storage part (12, 12a), and a rotation-type lifting table (16a) that rotates about an axis parallel to the side of the top plate (1a) of the desk is attached to the storage part. The lid plate has an upper surface (14a) that is flush with the top plate surface (1a) of the desk when closed,
The elevating table has a display support (18) that fits exactly into the opening (13) of the storage (12, 12a) when it is raised, and a thin display of a computer device is mounted on this display support. A desk with a built-in display. 3. The lift table (16, 16a) is provided so as to be biased upward in the entire stroke range from the descending end to the ascending end, and the lift table is automatically locked at the descending end. A desk with a built-in display according to claim 1 or 2, further comprising a stop means (25) and a release device (30) for the locking means. 4. Locking means for automatically locking the lifting table (16, 16a) and a lid plate (14, 14a) separate from the lifting table (16, 16a) in the opening direction. (25) and a locking means (29) for automatically locking the cover plate in the closed position, and a release device (30) for simultaneously opening both locking means (25), (29)
The desk with a built-in display according to claim 3, wherein the desk is provided. 5. The storage part (12) is provided in the inside of the back plate (1c) of the desk in a vertical hole shape.
Alternatively, the desk with a built-in display described in 4. 6. The back plate (1c) of the desk, wherein the storage section (12a) is
The display-embedded desk according to claim 1, 2, 3, or 4, which is provided along a back surface of the desk. 7. An elevator table (16) which is elevated by being guided by a rail (15) provided in a storage section (12, 12a), wherein the elevator table (16) is provided on the side opposite to the side guided by the guide. Anti-sway wheels
The desk with a built-in display according to claim 1, wherein the desk (38) is attached. 8. A lid plate (1) which can be freely opened and closed on the back side below the top plate of the desk.
4, 14b) is provided with a storage section (12, 12a), and a direct-acting type or rotary type lifting platform (16, 16a) is attached to the storage section. (12, 12a) has a display support part (18) that fits exactly into the opening (13), and the storage part has an upper end sensor (51) for detecting the lift table (16, 16a) in the raised position.
a) and upper end locking means (52a) for preventing the lowering of the lifting table
And a lower end sensor (51b) that detects the lift table (16, 16a) in the lowered position and a lower end locking means (5) that prevents the lift table from rising.
2b), the release button (27) provided on the desk, and the output information of both sensors (51a, 51b) based on the output information of the both locking means.
A desk with a built-in display, comprising a control device (57) for controlling the operations of (52a, 52b).