JPH0767413B2 - Desk for OA equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an OA equipment desk. More specifically, it is a desk for installing desktop OA equipment (hereinafter simply referred to as OA equipment) such as a personal computer, a word processor, and a workstation, which can store OA equipment when not in use inside the desk.
Regarding the desk for equipment.

[Prior Art] Conventionally, OA devices have been installed and used in ordinary office desks or dedicated desks. However, the desk with the OA equipment installed in this way cannot be used as a flat desk even when the OA equipment is not used, so it is necessary to separately provide the desk for the OA equipment and the flat desk.

As a desk that solves this problem, for example, the top plate has a two-layer structure, OA equipment is installed in the lower layer, and the top plate height that has been conventionally used for learning desks as shown in FIG. 6 is used. Adopting an elevating mechanism for adjustment to elevate and lower the top plate of the two-layer structure. When using OA equipment, the top plate of the lower layer is used, and when using it as a flat desk, the top plate of the upper layer is used. A desk can be considered.

In the conventional desk lifting mechanism shown in FIG. 6, the support rod (52) stands up from the base (51), while
An outer cylinder (54) is attached to the lower surface of the top plate (53).
Screws are formed on the surface of the support rod (52) and the inner surface of the outer cylinder (54), respectively, and are engaged with each other, and the outer cylinder (54) is rotated around the central axis by an external operation. Has become. That is, in the conventional desk elevating mechanism, one of the support rod (52) and the outer cylinder (54) is attached to the base (51), the other is attached to the top plate (54), and either one is rotated. The outer cylinder (54) and the support rod (52) move relative to each other, and the top plate (53) is moved up and down.

[Problems to be Solved by the Invention] However, in the conventional desk elevating mechanism, the outer cylinder (54) and the support rod (52) are vertically arranged below the top plate (53) and are screwed in a nested manner. Due to the structure, the vertical movement distance of the top cannot theoretically be more than 1/2 of the maximum height of the top, and is practically limited to about 1/3. Therefore, in a two-layer structure desk that employs such a lifting mechanism, since the amount of lifting is limited as described above, the top plate of the lower layer on which the OA equipment is installed does not descend sufficiently, and therefore can be installed and stored. There is a problem that the size of OA equipment is significantly limited. This indicates that the conventional desk elevating mechanism is suitable only for height adjustment and not suitable for storage.

Further, in the above conventional desk elevating mechanism, since the upper end of the support rod fixed to the base is a free end, the support rod receiving the load from the top plate is flexed by repeated use, and therefore fits with the outer cylinder. There is also a problem that the mating screw is likely to be damaged to cause a lifting operation failure, and that the screw cannot be put to practical use depending on the frequency of use of the lifting mechanism.

Further, since the upper layer of the two-layer structure as described above does not obstruct the use of the lower layer as the ceiling plate, it cannot be greatly extended toward the user, that is, forward. Therefore, the size of the upper layer in the front-rear direction is equal to or smaller than that of the lower layer, and a front projecting portion that does not move up and down is provided in front of the ascending top plate portion. It is conceivable to adopt a configuration that forms a sheet of paper, but in that case, especially when the upper layer is used as a top board as a flat desk, for example, paper etc. will fall between the upper layer and the front overhang. There is also a problem in that a small gap is created, and not only the appearance but also the function as a desk becomes a major defect, which greatly reduces the commercial value.

In addition, when the OA equipment is installed, it is generally desired that the height of the keyboard installation base be slightly lower (for example, about 2 cm) than the general height of an ordinary flat desk. In order to meet such a demand in a desk having a two-layer structure having a portion, it is necessary to further provide a dedicated height adjusting mechanism on the front overhang portion.

The present invention has been made in view of the problems in the conventional desk for OA equipment, has a large storage space, high durability of the lifting mechanism, it is possible to install various OA equipment,
It is a desk for office equipment that can be used both as a desk for equipment and as a flat desk, and can achieve a significant space saving. Furthermore, the above-mentioned gap that hinders appearance and function is not formed in the top plate, and The purpose is to provide a desk for OA equipment in which a keyboard installation stand of an appropriate height is formed when the lower layer on which OA equipment is installed is used as a top plate without requiring an additional height adjustment mechanism. To do.

MEANS FOR SOLVING THE PROBLEM The present invention relates to frame-shaped leg portions provided on both sides, an auxiliary top plate that extends forward and forms a part of a top plate, and a storage space formed by the leg portions. A main top plate having a lower layer that is supported to rise and fall inside and outside and that forms a part of the top plate when rising and an upper layer that forms a part of the top plate when descending, and the auxiliary top plate Sometimes, the height is slightly lower than that of the lower layer, and it is moved to a position that greatly extends forward, and when the main top plate descends, the height and the horizontal position at which it is pressed against the front end face of the upper layer at the same height as the upper layer are different. A plurality of support rods having teeth formed on the surface thereof are vertically supported at both ends by being supported by the leg portions via link mechanisms attached to the leg portions on both sides so as to take two or more positions. Fixed to each leg A drive device equipped with a gear that meshes with the teeth of the plurality of support rods and a transmission mechanism and a braking mechanism that rotate the gears in synchronization with each other is attached to the lower surface of the main top plate. OA equipment desk.

[Operation] In the desk for OA equipment of the present invention, since the supporting member for restricting the elevation is not provided below the main top plate, the lower layer of the main top plate can descend until it almost contacts the floor surface. . Therefore, the storage space formed by the upper layer and the lower layer becomes large.

Further, since both ends of the support rod are fixed to the legs, the support rod is not bent and the screw thread is less likely to be damaged.

In addition, the auxiliary top plate has different heights and horizontal positions.
Since it is supported by the legs via the link mechanism so that it can take one or more positions, if the upper layer becomes the top plate when the main top plate is lowered, the auxiliary top plate By moving it to the position, it is pressed against the front end surface of the upper layer at the same height as the upper layer, preventing the formation of a gap where paper, clips, etc. may drop, and with the main top plate raised, the OA equipment When the lower layer on which is installed becomes the top board, the auxiliary top board is moved to the front and lower positions to form the keyboard installation base of an appropriate height.

[Embodiment] Next, the desk for office equipment of the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a schematic side view showing an example of a desk for OA equipment of the present invention in a state where the main top plate is raised, and FIG. 2 is a schematic side view showing a state where the main top plate is lowered in the desk shown in FIG. 3 and 4 are schematic front views of the desk shown in FIG.

1 to 3, the desk (1) for OA equipment is a leg (2).
An auxiliary top plate (3) that extends forward and forms a part of the top plate, a lower layer (6) that is supported in a vertically movable manner and forms a part of the top plate and a part of the top plate when descending. And a main top plate (4) having an upper layer (5) to be formed. Further, the auxiliary top plate (3) is supported by the leg portion (2) via the link mechanism (7), and the main top plate (4) is attached to the leg portion (2) via the support rod (8). It is supported so that it can be raised and lowered.

The lower layer (6) of the main top plate (4) is an installation space for OA equipment, and the OA equipment is in a used state when the main top plate (4) is raised and in a stored state when the main top plate (4) is lowered.

A support rod (8) having teeth formed on its surface is vertically fixed to both ends of the frame-shaped leg (2). The legs (2) are provided on both sides of the desk (1) for OA equipment,
Support rods (8) are also provided on the legs (2) on both sides, respectively. A support rod (8) fixed to the leg (2) on one side
The number may be one or two or more.

On the lower surface of the lower layer (6) of the main top plate (4), each support rod (8)
A gear (9) that meshes with the teeth of and a drive device (10) that rotates or brakes the gear (9) are provided. The main top plate (4) is moved up or down by rotating the gear (9) while meshing with the teeth of the support rod (8).
At this time, the plurality of gears (9) are rotated in synchronization with each other. The drive device (10) is preferably small, has high output, smooth movement, and low sound.
In the desk shown in the figure, an electric motor provided with a speed change mechanism and a braking mechanism is used, but other drive devices using hydraulic pressure, pneumatic pressure, springs or the like may be used.
When a motor with a braking mechanism is used as the drive unit (10), the main top plate (4) can be stopped at any height with the OA equipment installed, but the highest position and the lowest position. A locking mechanism for supporting and fixing the main top plate (4) at the position may be provided on the leg portion (2) if necessary.

As shown in FIG. 3, on the lower layer (6), the main body of OA equipment such as personal computers, word processors, workstations, printers, displays, keyboards, etc. are mounted, and when these are used, they are mainly used. It is raised together with the top plate (4) and is lowered and stored when not in use.

Since the desk for OA equipment of the present invention has a highly reliable lifting mechanism having a smooth and stable lifting ability, it is possible to install two or more personal computers in such a large size and It is a big desk to realize economically. That is, in the desk of the present invention, the economy can be greatly improved by appropriately selecting the capacity of the drive device and by setting the size such that a plurality of personal computers can be installed.

Further, the elevating mechanism including a support rod, a gear, and a driving device may be used in combination with an elevating mechanism having a different structure. For example, two telescopic rods are attached below the main top plate (4) so that one end is tiltably attached to the main top plate (4) and the other end is tiltably attached to the leg portion (2). Arranged so as to intersect with each other, the two telescopic rods expand and contract in synchronism with each other, whereby the main top plate (4) is raised or lowered, and is attached diagonally to the back surface of the leg portion. By using together with a configuration in which a plurality of telescopic rods that expand and contract in the axial direction and the main top plate (4) are connected by interlocking members such as cables and pulleys, OA equipment with excellent economic efficiency is provided. Can be done. The OA of the present invention
The machine desk includes such a desk combined with another structure.

In the case where the above-mentioned different structure is used, it is difficult to obtain a smooth and stable lifting function, and it is difficult to increase the size of the top plate and increase the lifting weight, which is not preferable.

Further, with the configuration shown in FIGS. 1 to 3, the lower layer (6) can be lowered almost to contact with the floor surface, and a sufficient storage space capable of storing a large OA device is secured.

Furthermore, since both ends of the support rod (8) are fixed to the leg portion (2), the moment acting on the support rod (8) is small,
Deflection is also less likely to occur, and therefore the risk of damage to the threads of the support rod (8) is reduced.

As shown in FIG. 1, a guide roller (11) rolling on the inner surface of the leg portion (2) is provided at the end of the lower layer (6), whereby the main top plate (4) is inclined. Is prevented.

Instead of the guide roller (11), a rail made of a pipe or the like may be attached to the leg portion (2), and an outer fitting member that slidably fits with the rail may be provided at the end of the lower layer (6). Good. It is preferable that the rail and the external fitting member are made of a material having a small friction coefficient.

The auxiliary top plate (3) is supported by a link mechanism (7) so as to be able to take two or more positions having different heights and horizontal positions. The legs (2) are provided on both sides of the desk (1) for OA equipment, and the link mechanism (7) is also attached to the legs (2) on both sides. When the main top plate (4) as shown in Fig. 1 rises,
The link mechanism (7) is made to extend forward, and the auxiliary top plate (3) is slightly lowered in height, so that it can be moved to a position where it is extended to the front. On the other hand, when the main top plate (4) as shown in FIG. 2 descends, the link mechanism (7) is in a folded state, and the auxiliary top plate (3) has a slightly high height, so that the forward protrusion is small. Can be moved to the position.

By properly setting the heights of these two positions, when used as a flat desk (Fig. 2), the height that is most commonly used as a flat desk will be uniform throughout the flat desk. , When used as a desk for OA equipment (1st
In the figure), a keyboard installation table is formed which is slightly lower than the above-mentioned flat desk height and is the most suitable height as a desk for OA equipment.

Further, the front-rear dimension of the lower layer (6) is determined according to the leg portion (2), the front-rear dimension of the upper layer (5) is made smaller than that of the lower layer (6), and the front-rear dimension of the auxiliary top plate (3) and the link are set. By determining the member dimensions of the mechanism (7) so that the upper layer (5) and the auxiliary top plate (3) are in contact with each other without a gap,
When used as a desk for OA equipment (Fig. 2), the upper layer (5) does not interfere, and when used as a flat desk (Fig. 1), the auxiliary top plate (3) and the upper layer (5) are used. ) And form a top plate with no gap.

FIG. 4 is a schematic side view showing an example of an upper layer mounting structure, and FIG.
The drawing is an enlarged sectional view showing a hinge portion of the mounting structure of FIG.

In FIG. 4, the upper layer (5) of the main top plate (4) is a connector (1
It is attached to the rest of the main top plate (4) via 3) and a hinge (12). As shown in FIG. 5, the hinge (12) has a first member having one end attached to the upper layer (5) and a hook (15) formed at the other end connected via a hinge, and a main top plate. Attached to the rest of (4), the first
Second holding the other end of the member slidably only in the vertical direction
It consists of a member (16). The hook (15) is second
It has such a size and shape that it cannot pass through the inside of the member (16).

Therefore, the upper layer (5) attached as shown in FIGS. 4-5 is relative to the lower layer (ie, the main top plate (4)).
(Relative to the rest of the above), it is movable up and down within a range determined by the length of the other end side portion where the hook (15) is formed. As a result, when the user accidentally sandwiches his / her finger between the upper surface of the leg and the lower surface of the upper layer when lowering the main top plate (4), the mechanical force of the drive device is applied to the pinched finger. And the weight of the lower layer and the equipment installed there does not work,
Since only the weight of the upper layer acts, the safety of the lifting operation is improved. Furthermore, even if the upper surface of the leg and the lower surface of the upper layer do not match due to distortion of the leg or the main top plate, the levelness of the upper layer is adjusted to match the upper surface of the leg.

The structure in which the upper layer is attached to the lower layer so as to be vertically movable is not limited to the example shown in FIGS. 4 to 5, and various structures such as a structure using a hinge having an elongated hole can be adopted.

In FIG. 4, (14) is a keyboard storage member. Further, the switch for raising and lowering operation can be arranged, for example, on the lower surface of the upper layer that can be opened and closed.

[Advantages of the Invention] By adopting such a configuration, the storage capacity is large,
It can store various OA equipment that is already widely used, and when used, it can be used in the same posture and usage as when the OA equipment is installed on a dedicated desk. Therefore,
Although it can be used both as a desk for OA equipment and as a flat desk, there is almost no restriction on the models and usage methods that can be used, so the operability when using OA equipment is not impaired.

Further, the desk for OA equipment of the present invention can be further improved in economical efficiency and space saving by using a desk having a size capable of installing two or more OA equipment and a lifting ability.

In addition, the auxiliary top plate has different heights and horizontal positions.
Since it is supported by the legs via the link mechanism so that it can take one or more positions, if the upper layer becomes the top plate when the main top plate is lowered, the auxiliary top plate By being moved to the position, it is pressed against the front end surface of the upper layer at the same height as the upper layer, preventing the formation of gaps that would cause paper etc. to fall, and installing the OA equipment with the main top plate raised. If the lower layer is a top plate,
By moving the auxiliary top plate to the front and lower positions, a keyboard mount having an appropriate height is formed.

Also, since the upper layer is a part of the top plate, even if it is raised in a substantially horizontal state, it does not become an obstacle when used as a desk for OA equipment. Therefore, when changing from the state of a flat desk to a desk for OA equipment, the desk can be lifted as it is, and it is not necessary to move the object on the upper layer to another place.

In addition, the upper layer is configured to be movable up and down with respect to the lower layer, so that the weight of the installed equipment does not act even if the user accidentally pinches his finger when lowering the main top plate. Can be operated safely.

That is, since the desk of the present invention has a large storage space for OA equipment, there are few restrictions on the types of OA equipment that can be installed and stored, and the durability of the lifting mechanism is high, which is an obstacle to appearance and function. A gap is not formed in the top plate, and a keyboard installation base with an appropriate height is formed when the lower layer on which OA equipment is installed is used as the top plate without requiring an additional height adjustment mechanism. A desk for OA equipment is provided. Especially when it is used as an educational desk, it has the effect of efficiently using the limited floor space and contributing to the improvement of time efficiency and educational contents at the educational site.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an example of a desk for OA equipment of the present invention in a state where the main top plate is raised, and FIG. 2 is a schematic side view showing a state where the main top plate is lowered in the desk shown in FIG. Fig. 3, Fig. 3 is a schematic front view of the desk of Fig. 1, Fig. 4 is a schematic side view showing an example of a mounting structure of an upper layer, and Fig. 5 is an enlarged sectional view showing a hinge portion of the mounting structure of Fig. 4. , FIG. 6 is a schematic side view showing a typical example of a conventional desk lifting mechanism. (Main symbols in the drawing) (1): Desk for OA equipment (2): Leg (3): Auxiliary top plate (4): Main top plate (5): Upper layer (6): Lower layer (7): Link mechanism (8): Support rod (9): Gear (10): Drive device

Claims (2)

[Claims] 1. A frame-shaped leg portion provided on both sides,
An auxiliary top plate that extends forward and forms a part of a top plate, a lower layer that is supported up and down inside and outside of the storage space formed by the legs and forms a part of the top plate when rising, and a top plate when descending A main top plate having an upper layer forming a part of the main top plate, and the auxiliary top plate is moved to a position slightly lower in height than the lower layer when the main top plate is raised, and the main top plate is extended. When the plate is descending, there are link mechanisms attached to the leg portions on both sides so that the plate can take two or more positions at the same height as the upper layer and pressed against the front end face of the upper layer and in different horizontal positions. A plurality of support rods having teeth formed on the surfaces thereof are fixed to the leg portions at both ends in the vertical direction, and are supported by the leg portions, and teeth of the plurality of support rods are provided on the lower surface of the lower layer of the main top plate. Gears that mesh with Transmission mechanism for rotating in unison with respective gear and the braking mechanism and the desk for OA equipment driving device is mounted with a. 2. The upper layer of the main top plate is attached to the lower layer of the main top plate so as to be vertically movable.
Desk for OA equipment.