WO2016068289A1 - Desk of height-adjustable top panel type - Google Patents

Abstract

A desk (1) of the height-adjustable top panel type has: a pair of legs each having a lower support body (8), an upper support body (9), and a height-adjustment mechanism unit (5) for extendably/contractably connecting the lower support bodies (8) and the upper support bodies (9); a connecting member (3) for connecting the upper support bodies (9) to one another; a top panel (4); and a control unit (6) for controlling the height-adjustment mechanism unit (5). Furthermore: the control unit (6) is positioned on the undersurface-side of the top panel (4); an operation unit (7) for inputting a raising/lowering operation signal for the height-adjustment mechanism unit (5) is connected to the control unit (6) via an operation-unit wiring cable (15), and is positioned on the undersurface-side of the top panel (4) in the front edge section thereof; an upper arm (11) for supporting the undersurface of the top panel (4) and provided on the upper end of the upper support body (9) extends in the front-rear direction; and the operation-unit wiring cable (15) is positioned inside the upper arm (11).

Description

Top and bottom lifting desk

The present invention relates to a table-top-and-bottom desk that can change the height of the table up and down according to the demands of the office worker in office spaces such as offices and public facilities.
This application claims priority based on Japanese Patent Application No. 2014-221893 filed in Japan on October 30, 2014, the contents of which are incorporated herein by reference.

In office spaces such as offices and public facilities, desks are generally arranged to provide work areas for office workers. In such a desk, the height of the top plate that is easy to work with varies greatly depending on the individual depending on the physique, sex, preferences, etc. of the office worker. However, since a general desk with a constant top plate height cannot cope with the above-described actual situation, there has conventionally been provided a top plate lift desk that can change the top plate height up and down.

By using such a top / bottom desk, it is possible to provide a work area with the height of the top according to the demands of the worker, improving work efficiency and reducing the burden on the worker's body. can do. As a method for changing the height of the top board up and down, use of a gas spring (see, for example, Patent Document 1 and Patent Document 2), use of a gear, and the like have been proposed. According to these methods, a relatively simple structure can be obtained, and the cost can be reduced.

However, these methods have a problem that they may be difficult to operate by a weak worker, and are easily affected by the poor operation posture at the height of the top board.
In view of these problems, it has been proposed to use an electric drive unit (elevating drive unit) capable of automatically changing the top plate height up and down as a method for improving the operability of the office worker (for example, Patent Documents). 3, Patent Document 4 and Patent Document 5). According to this method, the office worker can change the height of the top board with a simple operation. The drive control unit that performs drive control of the electric drive unit is usually disposed on the lower surface side of the top plate.

Japanese Patent No. 3371959 Japanese Patent No. 3391285 Japanese registered utility model No. 316439 Japanese Unexamined Patent Publication No. 2014-113505 Japanese Laid-Open Patent Publication No. 2014-140753

By the way, in a top-and-bottom desk that uses an electric drive unit, an inter-unit wiring cable that connects the electric drive unit and the drive control unit, a power cable that connects the power source and the drive control unit, and electric Various cables (electrical wiring) such as an operation unit wiring cable for connecting an operation unit for inputting a drive operation signal of the drive unit and the drive control unit are required.

Among these electrical wirings, especially for the operation unit wiring cable, it is necessary to connect the drive control unit arranged on the lower surface side of the top plate and the operation unit, so that it is drawn into the top plate elevating desk. Is done.
However, since the top plate position can be moved up and down as a characteristic of the desk (when it can be moved up and down), when the drive control unit and the operation unit are provided in the lifting part such as the top plate, the top plate can be moved up and down. The operation unit wiring cable is also displaced up and down.

For this reason, when changing the height of the top plate, there is a possibility that the operation unit wiring cable may be caught by other articles arranged around the top plate of the desk or below the top plate, and also by other wiring.
In addition, when performing normal work, there is a possibility of touching the operation unit wiring cable, which leads to a situation such as unexpected disconnection of the operation unit wiring cable and the drive control unit. It is possible and not preferred.

The present invention has been made in view of the above circumstances, and can prevent the operation portion wiring cable from coming into contact with the office worker and articles around the top plate, both at the time of work and at the time of changing the height of the top plate. An object of the present invention is to provide a top / bottom desk.

The top plate elevating desk according to the first aspect of the present invention includes a lower support disposed on the floor, an upper support disposed above the lower support, and a space between the lower support and the upper support. A pair of legs spaced apart from each other, a connecting member that connects the upper supports of the pair of legs, and an upper support of the pair of legs A top plate elevating desk having a flat top plate supported on a body and disposed on a connecting member, and a control unit for controlling both of a pair of leg raising and lowering mechanism units. An operation unit that inputs a lifting operation signal of the lifting mechanism unit is connected to the control unit via the operation unit wiring cable, and is also disposed on the lower surface side of the front edge of the top plate. The upper support is provided at the upper end of the upper support Upper arm supporting the can is disposed to extend in the longitudinal direction, the operation unit wiring cables, are disposed in the upper arm.

According to this configuration, the operation unit that inputs the lifting operation signal of the lifting mechanism unit is connected to the control unit via the operation unit wiring cable and is disposed on the lower surface side of the front edge of the top plate. Therefore, the operability when the office worker moves the top and bottom up and down is improved. In addition, the operation unit wiring cable is provided in the upper arm that is provided at the upper end of the upper support and extends in the front-rear direction to support the lower surface of the top plate. In either case, it is possible to prevent the operation unit wiring cable from coming into contact with the office worker and articles around the top plate. Furthermore, since the operation unit wiring cable is not exposed to the outside, the design of the appearance as a desk is improved.

Moreover, in the top-plate elevating desk according to the second aspect of the invention, the upper arm is extended downward from the top-plate mounting portion facing the lower surface of the top plate and the outer edge of the top-plate mounting portion. And a wiring holding part extending from the lower edge of the downward part toward the inside of the top plate mounting part, and the operation part wiring cable is held by the wiring holding part. Yes.
According to this configuration, the upper arm can have a simple and inexpensive structure, and the operation unit wiring cable can be reliably held in the upper arm.

In the top plate elevating desk according to the third aspect of the invention, a cap member for holding the operation unit wiring cable passed through the upper arm is attached to the tip of the upper arm.
According to this configuration, the operation unit wiring cable can be easily and reliably held in the upper arm by the cap member. Further, by covering the tip of the upper arm with a cap member, it is possible to improve the appearance design.

Moreover, in the top plate elevating desk according to the fourth aspect of the invention, the connecting member is configured to have a pair of connecting pieces spaced apart from each other in the front and rear, and a space formed between the front and rear connecting pieces. The control unit is disposed in the upper arm and the space formed between the connecting pieces is communicated via an insertion opening provided at the left and right end portions of the connecting pieces. An inter-unit wiring cable that connects the lifting mechanism unit and an operation unit wiring cable that connects the control unit and the operation unit are both connected to the space.
According to this configuration, since the inter-unit wiring cable and the operation unit wiring cable are both routed through the space portion, the inter-unit wiring cable and the operation unit can be used both at work and when the top plate height is changed. It is possible to prevent the distribution cable from coming into contact with the office worker and articles around the top plate. Furthermore, since the inter-unit wiring cable is not exposed to the outside, the design of the appearance as a desk is improved.

According to the top plate elevating desk of the present invention, since the operation unit wiring cable is arranged in the upper arm, the operation unit wiring cable can be used both at work and when the top plate height is changed. It is possible to prevent the worker and the objects around the top plate from coming into contact.

It is a perspective view which shows schematic structure of one Embodiment of the top-plate raising / lowering desk which concerns on this invention. It is a front view of the top-plate elevating desk shown in FIG. FIG. 2 is a rear view of the top / bottom desk shown in FIG. 1. FIG. 2B is a view taken along line AA in FIG. 2A. It is a cross-sectional view showing a schematic configuration of the upper support. It is a bottom view which shows the connection member attached between a pair of upper support bodies. It is a BB line arrow directional view of Drawing 2A. It is a perspective view which shows the connection part between a connection member and a leg. It is the perspective view which looked at the front-end | tip part of the upper arm provided with the cap member from the lower side. It is the perspective view which looked at the cap member from the inner side. It is a perspective view which shows an electronic device mounting part. It is a principal part side view for demonstrating the suspension structure of the electronic device mounting part to a top plate. It is a figure which shows the modification of a cap member, Comprising: It is a perspective view of the front-end | tip part of the upper arm provided with the cap member. It is a figure which shows the modification of a cap member, Comprising: It is a perspective view of a cap member.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a top / bottom desk according to the present invention will be described in detail with reference to the drawings.
In the following description, the length direction of the long side of the rectangular top plate of the top plate lifting desk is referred to as the left-right direction, and the length direction of the short side of the top plate is referred to as the front-rear direction.

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of a top / bottom desk according to the present invention, FIG. 2A is a front view of the top / bottom desk shown in FIG. 1, and FIG. It is a rear view of the top-plate elevating desk shown in FIG. 2A and 2B, the description of the electronic device placement unit 31 shown in FIG. 1 is omitted. In these drawings, reference numeral 1 denotes a top plate elevating desk.

The top plate elevating desk 1 is supported on a pair of legs 2 and 2 that are spaced apart from each other on the left and right, a connecting member 3 that connects the pair of legs 2 and 2, and the legs 2 and 2. And the flat plate 4 placed on the connecting member 3. The pair of legs 2, 2 is provided with the lift mechanism unit 5, so that the top plate 4 moves up and down. It is configured to be possible.
Further, the top plate elevating desk 1 is provided with a control unit 6 (see FIG. 5) for controlling both the pair of elevating mechanism units 5 and 5 as will be described later. An operation unit 7 for inputting is provided.

The leg 2 includes a lower support 8 disposed on the floor, an upper support 9 disposed above the lower support 8 and supporting the lower surface of the top plate 4, and the lower support 8 and the upper support. And an elevating mechanism unit 5 that is connected to the body 9 so as to be extendable and contractable.
The lower support 8 is a plate-like member extending in the front-rear direction, and is provided with an adjuster (not shown) at each of the front-rear ends so that the height from the floor surface can be finely adjusted. Yes.

The elevating mechanism unit 5 has a conventionally known configuration, and a plurality of square tubes having different dimensions are fitted to each other so as to be relatively movable, so that the elevating mechanism unit 5 can be expanded and contracted in the vertical direction by driving of a drive mechanism accommodated therein. ing. Thereby, the raising / lowering mechanism unit 5 has connected between the lower support body 8 and the upper support body 9 so that expansion-contraction is possible.

As shown in FIG. 3 which is an AA arrow view of FIG. 2A, the upper support 9 is disposed so as to extend in the front-rear direction of the top plate 4, and the lower surface of the side end portion in the left-right direction of the top plate 4 Support. The upper support 9 is lifted and lowered so that the front end side 9a which is the front side of the top plate 4 is longer than the lifting mechanism unit 5 and the rear end side 9b which is the rear side of the top plate 4 is shorter. It is integrally fixed to the upper end portion of the mechanism unit 5 by welding or the like. The upper support 9 is formed by bending a metal plate as shown in the cross-sectional view of FIG. 4, and is integrally formed with the outer plate 10 disposed outside in the left-right direction of the top plate 4 and the upper end of the outer plate 10. The upper arm 11 is formed.

As shown in FIG. 3, the outer plate 10 extends in the front-rear direction of the top plate 4 and is formed so as to hang downward from the lower surface of the top plate 4. The outer plate 10 is raised and lowered on both the front end side 9 a and the rear end side 9 b. The lower end edge is formed so as to be inclined so that the lower end edge gradually approaches the top plate 4 as it goes outward from the mechanism unit 5 side. It should be noted that the front end side 9a and the rear end side 9b are formed so that the lower end edge is curved and reaches the lower surface of the top plate 4 at the front end side.

The upper arm 11 extends from the connecting portion with the lifting mechanism unit 5 on the front end side 9 a of the upper support 9 to a position slightly ahead of the front end of the outer plate 10, and also from the connecting portion with the lifting mechanism unit 5 on the rear end side 9 b. The outer plate 10 extends slightly forward from the tip. As shown in FIG. 4, the upper arm 11 faces the lower surface of the top plate 4 and abuts and supports the top plate mounting portion 12, and the outer edge of the top plate mounting portion 12, that is, the outer plate 10. A downward portion 13 extending downward from the outer edge on the opposite side, and a lower edge of the downward portion 13 toward the inner side (outer plate 10 side) of the top plate mounting portion 12 and obliquely upward. And a wiring holding part 14 extending in the direction.

Under such a configuration, the upper arm 11 holds and draws various wiring cables on the inside thereof, that is, on the wiring holding portion 14 in the space formed by the downward portion 13 and the wiring holding portion 14. It can be turned (can be connected).

Specifically, as shown in FIG. 3, on the front end side 9 a on the side where the operation unit 7 is arranged, the operation unit wiring for connecting the control unit 6 (described later) and the operation unit 7 on the wiring holding unit 14. The cable 15 is held. Moreover, in the left-right direction of the top plate 4 shown in FIG. 1, in the upper support body 9 on the opposite side to the side where the operation unit 7 is arranged, the wiring holding of the upper arm 11 on the rear end side 9b as shown in FIG. A power cable 16 (see FIG. 1) is held on the portion 14.

As shown in FIG. 1, the power cable 16 connects between a power source provided in the office space where the top / bottom desk 1 is disposed and a control unit 6 which will be described later. It is pulled into the elevating desk 1. At that time, if the power cable 16 is arranged in a state of hanging below the top plate 4, the power cable 16 is arranged around the top plate 4 of the desk or below the top plate 4 when the top plate height is changed. Since it may be caught in another article and also other wiring, and a worker may accidentally touch the power cable 16, it is not preferable.

Therefore, in the present embodiment, the power cable 16 routed from the power source is first, in the upper arm 11 on the rear end side 9b of the one upper support 9 from the rear side of the top plate elevating desk 1, that is, the wiring holding It is drawn on the part 14. And it connects to the control unit 6 through the space part 19 formed in the connection member 3 mentioned later. The power cable 16 is held by a regulating member (not shown) that regulates the displacement of the power cable 16 until the power cable 16 is pulled into the upper arm 11 in the vicinity of the top / bottom desk 1. Yes. Since the power cable 16 is held by the regulating member, its free displacement is regulated so that the power cable 16 is displaced only in a predetermined direction when the top plate height is changed. Contact is prevented.

FIG. 5 is a bottom view showing the connecting member 3 attached between the pair of upper supports 9.
As shown in FIG. 5, the connecting member 3 is attached to the pair of upper supports 9, 9 by welding or the like, thereby connecting the upper supports 9 of the pair of legs 2, 2. This connecting member 3 is formed by bending a metal plate as shown in FIG. 6 which is a view taken along the line BB in FIG. 2A, and is a pair of connecting pieces disposed apart from the front and back of the top plate 4. 17 and 17 and a connection plate 18 that integrally connects the connecting pieces 17 and 17.

In this embodiment, the connecting piece 17 extends downward from each end edge in the front-rear direction of the connection plate 18 and extends downward from the lower end edge of the downward plate 17a. It consists of a horizontal plate 17b and an upward plate 17c extending upward from the inner edge of the horizontal plate 17b. A space 19 that opens downward is formed between the connecting pieces 17 and 17, that is, between the upward plates 17c and 17c.

As shown in FIG. 5, the space portion 19 is formed with a first space portion 19a having a wide width between the upward plates 17c and 17c, and a width between the upward plates 17c and 17c narrower than the first space portion 19a. The second space portion 19b. The first space portion 19 a is formed at two locations with a predetermined interval in the left-right direction of the connecting member 3. That is, the two first space portions 19 a are arranged symmetrically in the left-right direction of the connecting member 3. A second space portion 19b is formed between the first space portions 19a and 19a and on the outer sides in the left-right direction.

As shown in FIGS. 5 and 6, the control unit 6 is disposed in the first space 19 a and is fixed to the connecting member 3 by screws or the like and accommodated. The control unit 6 controls the lifting operation of the lifting mechanism units 5 and 5 provided in each of the pair of legs 2 and 2, and is operated by being connected to the power cable 16 and supplied with electric power therefrom. To do.
In addition to the power cable 16, inter-unit wiring cables 20, 20 that connect the control unit 6 and the pair of lifting mechanism units 5, 5 are connected to the control unit 6. The operation unit wiring cable 15 is also connected.

With such a configuration, the control unit 6 sends the power supplied from the power cable 16 to the lifting mechanism unit 5 and receives the lifting / lowering operation signal of the lifting mechanism unit 5 from the operation unit 7, based on the received signal. The raising / lowering operation of the raising / lowering mechanism unit 5 is controlled, and the height of the top plate is changed. The power cable 16, the inter-unit wiring cables 20 and 20, and the operation unit wiring cable 15 connected to the control unit 6 include a first space portion 19a different from the first space portion 19a in which the control unit 6 is disposed. The second space portion 19b is connected.

As shown in FIG. 6, a cover member 21 is attached to the lower surface side of the connecting member 3 so as to cover the front and rear connecting pieces 17 and 17 and the space 19 between them. The cover member 21 is formed by bending a metal plate, and has a front-rear dimension that is larger than the length dimension between the downward plates 17a, 17a of the front and rear connecting pieces 17, 17. As a result, the cover member 21 is attached to the lower surface side of the connecting member 3, and extends in either the front or rear direction of the connecting member 3. In this embodiment, although it extends to the rear side of the top plate 4, it may extend to the front side and may extend to both front and rear sides.

The extending portion is formed in a bowl shape having a recess extending in a groove shape in the left-right direction, and serves as a wiring mounting portion 22 for mounting a wiring, a table tap, or the like in the recess. As shown in FIG. 2B, the wiring mounting portion 22 has a cutout portion 22a in which a part of the outer portion is cut into a rectangular shape at the center portion in the left-right direction. On the other hand, as shown in FIG. 6, the cover body 23, which is a part covering the connecting member 3, is formed by bending a flat plate into an L shape, and can be attached to and detached from the horizontal plate 17 b of the connecting piece 17 by screwing. It is attached. Under such a configuration, the cover member 21 is suspended from the top plate 4 via the connecting member 3.

As shown in FIG. 7 which shows the connection part between the connection member 3 and the leg body 2, the connection member 24 is provided in the right and left both ends of the connection member 3. As shown in FIG. The connecting member 24 is provided between each end of the connecting member 3 in the left-right direction and the leg 2, that is, at a connecting portion between the upper support 9 of the leg 2 and the lifting mechanism unit 5. The cross-sectional shape seen from the left-right direction is formed in a U shape. The connecting member 24 is attached so as to cover the lower surface and both side surfaces of the connecting member 3 at the left and right end portions, and is attached so as to abut against the inner surface of the outer plate 10 of the upper support 9 in this state. Yes. Further, in this state, it is in contact with and covers the upper end of the lifting mechanism unit 5. And the connection member 24 is being fixed with respect to the connection member 3, the upper support body 9, and the raising / lowering mechanism unit 5, respectively by welding.

The side plate 25 of the connecting member 24 that contacts both side surfaces of the connecting member 3 communicates with the inside of the upper arm 11 of the upper support 9 to form a side plate insertion port 25a. The side plate insertion opening 25 a is formed so as to communicate with the wiring holding portion 14 in the upper arm 11 and is also formed so as to communicate with the space portion 19 between the connection pieces 17, 17 of the connection member 3. That is, the connecting piece 17 is also formed with an insertion port (not shown) that communicates with the side plate insertion port 25a. Thereby, the wiring cable passed through the wiring holding part 14 is drawn into the space part 19 through the side plate insertion opening 25 a and connected to the control unit 6.

Specifically, as described above, the operation unit wiring cable 15 passed through and held on the wiring holding unit 14 on the front end side 9a on the side where the operation unit 7 shown in FIG. It is drawn into the space 19 through 25 a and connected to the control unit 6. Further, the power cable 16 that is passed through and held in the wiring holding portion 14 on the rear end side 9b opposite to the side where the operation portion 7 is disposed is drawn into the space portion 19 through the side plate insertion opening 25a. , Connected to the control unit 6. Therefore, the operation unit wiring cable 15 and the power cable 16 are connected to the space unit 19 so as to be connected to the control unit 6 from opposite directions in the left-right direction.

Further, a cover member 21 is attached to the lower surface of the connecting member 3 so as to cover the lower surface side of the connecting member 3 as shown in FIG. A semicircular cutout 21 a is formed at the left and right ends of the cover member 21, and the cutout 21 a communicates with the space 19 between the connecting pieces 17 and 17.

The elevating mechanism unit 5 is provided with an inter-unit wiring cable 20 for supplying power for driving the elevating mechanism unit 5 and an elevating operation signal. The inter-unit wiring cable 20 is provided in the upper end of the elevating mechanism unit 5. It is pulled out from the opening 5 a formed on the side surface and drawn into the notch 21 a of the cover member 21. Then, it passes through the space 19 and is connected to the control unit 6. That is, the inter-unit wiring cable 20 is connected to the space 19.

The top plate 4 has a rectangular plate shape as shown in FIG. 1, and in this embodiment, wiring insertion holes 27 that penetrate between the top and bottom surfaces of the top plate 4 are formed in the left and right sides of the rear side. The wiring insertion hole 27 guides the connection wiring cable 29 of the display 28 placed on the top plate 4 to the lower side of the top plate 4 as indicated by a two-dot chain line in FIG. That is, as shown in FIG. 6, the wiring insertion hole 27 is disposed in the vicinity of the wiring placement portion 22 of the cover member 21, and thereby, the connection wiring cable 29 is passed through and easily guided onto the wiring placement portion 22. It becomes possible.

The connection wiring cable 29 guided on the wiring placement unit 22 can be connected to a table tap 30 arranged on the wiring placement unit 22 as indicated by a two-dot chain line in FIG. 6, for example.
However, in this embodiment, the connection wiring cable 29 is directly connected to a PC main body 32 (electronic device) mounted on an electronic device mounting portion 31 described later after passing over the wiring mounting portion 22. In addition, the table tap 30 arrange | positioned on the wiring mounting part 22 is arrange | positioned facing the outer side from the notch part 22a shown, for example in FIG. 2B. Thereby, for example, a relatively large connector such as an AC adapter that cannot be directly placed on the wiring mounting portion 22 can be connected to the table tap 30 through the cutout portion 22a. The wiring insertion hole 27 may be covered with a resin cover (not shown) that closes the wiring insertion hole 27 so as to be opened and closed.

As shown in FIGS. 1 and 3, an operation portion 7 is provided on the lower surface side of the front edge portion of the top plate 4. The operation unit 7 has an operation button for inputting an elevating operation signal to the elevating mechanism unit 5 and is attached to the lower surface of the top plate 4 via an attachment member (not shown). An operation unit wiring cable 15 is connected to the operation unit 7, and the operation unit wiring cable 15 is located on the same side as the operation unit 7 in the left-right direction of the top plate 4 as described above. Is pulled into the upper arm 11 on the front end side 9a.

As shown in FIG. 8A, a cap member 33 is provided at the front end side 9a of the upper support 9 into which the operation unit wiring cable 15 is drawn. The cap member 33 holds the operation unit wiring cable 15 passed through the upper arm 11 on the front end side 9a of the upper support 9, and is fitted into the distal end portion of the front end side 9a of the upper support 9 in this state. It is fixed to the upper support 9.

The cap member 33 is made of resin and includes a fitting portion 34 that is fitted into the distal end portion of the upper support 9 in the length direction of the upper support 9 and an outer end portion 35 that is engaged with the distal end of the upper support 9. It is an integrally molded product. Moreover, as shown in FIG. 8B which shows the inner side of the cap member 33, the cap member 33 includes a substantially U-shaped outer plate 33a along the outer shape of the fitting portion 34 and the outer end portion 35, and one of the outer plates 33a. It consists of a side plate 33b provided on the side.

In the outer plate 33a, a stepped portion 33c is formed between the fitting portion 34 and the outer end portion 35, and this stepped portion 33c is engaged with the tip of the upper support 9 as shown in FIG. 8A. It is a locking part.
On the outer end surface 35 a of the outer end portion 35, a notch 35 b for drawing in the operation unit wiring cable 15 is formed by notching and opening the top arm mounting portion 12 side of the upper arm 11.

As shown in FIG. 8B, the side plate 33 b on the fitting portion 34 side is formed with a contact portion 34 a that contacts the back surface of the top plate mounting portion 12 of the upper arm 11 of the upper support 9. The abutting portion 34a is formed so as to protrude toward the top plate placing portion 12 side, and the outer end surface 35a side is formed to be curved in a semicircular shape. A screw hole 34b for screw insertion is formed in the contact portion 34a.

The cap member 33 is formed with a substantially U-shaped groove 33d between the outer plate 33a and the abutting portion 34a on the inner surface side thereof. That is, the contact portion 34a is formed at the center portion in the width direction of the fitting portion 34, that is, in the direction orthogonal to the length direction of the upper support 9, so that the contact portion 34a is viewed from the outer end surface 35a side. A substantially U-shaped groove 33d is formed toward both sides.

Under such a configuration, the operation unit wiring cable 15 connected to the operation unit 7 is drawn into the groove 33d from the notch 35b of the outer end 35, and further passes through one outer side of the contact portion 34a. Is pulled into the upper arm 11. However, in actual assembly, it passes through the space 19 from the control unit 6 side shown in FIG. 5, and further passes through the insertion port of the connecting piece 17 and the side plate insertion port 25a of the connecting member 24 shown in FIG. The operation portion wiring cable 15 passed through is pulled out from the tip of the upper arm 11 shown in FIG. 8A. At that time, the operation unit 7 is connected to the operation unit wiring cable 15.

When the operation unit wiring cable 15 is pulled out from the tip of the upper arm 11 and extended in this way, the cap member 33 is fitted from the tip of the upper arm 11. At that time, the operation unit wiring cable 15 is passed through the groove 33d and further drawn out through the notch 35b. Thereafter, a screw 36 is inserted into the screw hole 34b of the abutting portion 34a, and a female screw portion (not shown) formed in the top plate 4 through a screw hole (not shown) formed in the top plate mounting portion 12 of the upper arm 11 is shown. Screw). About the operation part 7, it attaches to the lower surface of the top plate 4 with an attachment member.

By providing such a cap member 33 on the front end side 9a of the upper support 9, the operation portion wiring cable 15 can be easily accommodated in the upper arm 11 of the upper support 9, and a metal plate It is possible to cover the end face of the upper support body 9 made of the above without exposing it. That is, the cap member 33 facilitates accommodation of the operation unit wiring cable 15 and also functions as a decorative material that covers the end surface of the upper support 9.

Moreover, in this embodiment, as shown in FIG. 1, the electronic device mounting part 31 is suspended from the lower surface of the top plate 4. As shown in FIG. 9, the electronic device placement unit 31 includes a placement plate 37 that is disposed substantially parallel to the floor surface, and a pair of left and right side plates that extend upward from the left and right ends of the placement plate 37. 38, 38. In this embodiment, a part of the center part in the front-rear direction is cut out at the upper end of each of the pair of side plates 38, 38, and a wiring insertion opening 39 is formed. Is formed.

Further, a suspension support plate 40 is integrally formed on the electronic device mounting portion 31 between the upper end edges of the pair of side plates 38 and 38. The suspension support plate 40 is formed on each of the front side and the rear side of the wiring insertion opening 39, has a screw hole, and is attached to the lower surface of the top plate 4 by passing the screw through the screw hole. Thereby, the electronic device mounting part 31 is suspended from the lower surface of the top plate 4.

The electronic device mounting portion 31 having such a configuration is open on both the front side and the rear side. Therefore, as shown in FIG. 1, a PC main body (electronic device) 32 is easily provided in the electronic device mounting portion 31. Can be accommodated. Here, the PC main body 32 is connected to the display 28 placed on the top plate 4 to constitute a desktop personal computer, and is connected to the display 28 via a connection wiring cable 29.

Note that the PC main body 32 unexpectedly drops from the rear opening or the connection wiring cable 29 does not pass through the wiring insertion opening 39 as will be described later. In order to prevent connection to the display 28 through the opening, a lid 41 covering the rear opening may be attached to be openable and closable as shown in FIG.

Further, when the electronic device mounting portion 31 is suspended from the lower surface of the top plate 4, it is suspended across the connecting member 3 and the cover member 21 as shown in FIG. That is, the electronic device mounting portion 31 is disposed so that the connecting member 3 and the cover member 21 pass through the respective wiring insertion openings 39 and 39 of the pair of side plates 38 and 38, and is attached to the lower surface of the top plate 4. However, the wiring insertion openings 39, 39 are formed longer than the length of the cover member 21 in the front-rear direction, and therefore a part thereof is opened without being covered by the cover member 21.

In the present embodiment, the portions 39 a and 39 a that are opened without being covered by the cover member 21 of the wiring insertion openings 39 and 39 are arranged so as to be positioned in the vicinity of the wiring insertion holes 27 formed in the top plate 4. ing. That is, the electronic device mounting portion 31 is attached to and suspended from the lower surface of the top plate 4 so that the portions 39 a and 39 a are positioned in the vicinity of the wiring insertion hole 27. The connection wiring cable 29 of the PC main body 32 mounted on the electronic device mounting portion 31 under such a configuration passes through one wiring insertion opening 39 and temporarily passes through the wiring mounting portion 22 from, for example, the notch 22a. After being guided upward and further passed through the wiring placement portion 22 and partially held there, it is pulled out onto the top plate 4 through the wiring insertion hole 27 and connected to the display 28.

In the top plate elevating desk 1 having such a configuration, the elevating mechanism units 5 and 5 are driven together by operating the operation unit 7 shown in FIG. The height of can be changed arbitrarily. At that time, the power cable 16, the inter-unit wiring cables 20 and 20, the operation unit wiring cable 15, and the connection wiring cable 29 of the electronic device (PC main body 32, display 28) are connected to the space 19 and the cover of the connecting member 3. Since they are arranged on the wiring mounting portion 22 of the member 21, these wiring cables are hardly exposed to the outside, so that the wiring cables interfere with each other not only during work but also when changing the height of the top plate. Is prevented.

According to the top plate elevating desk 1 of the present embodiment, the operation unit 7 is connected to the control unit 6 via the operation unit wiring cable 15 and disposed on the lower surface side of the front edge of the top plate 4. Therefore, the operability when the office worker raises and lowers the top 4 is improved. In addition, since the operation unit wiring cable 15 is disposed in the upper arm 11, the operation unit wiring cable 15 is provided between the office worker and the top plate at any time during work and when the top plate height is changed. Contact with an article or the like can be prevented. Furthermore, since the operation unit wiring cable is not exposed to the outside, the design of the appearance as a desk is improved.

In addition, since the upper arm 11 is formed by the top plate placing portion 12, the downward portion 13, and the wiring holding portion 14, the upper arm can have a simple and inexpensive structure. Further, since the operation unit wiring cable 15 is held in the wiring holding unit 14, the operation unit wiring cable 15 can be reliably held in the upper arm 11.

Further, since the cap member 33 that holds the operation unit wiring cable 15 passed through the upper arm 11 is attached to the tip of the upper arm 11, the operation unit wiring cable 15 is attached to the upper arm 11 by the cap member 33. It can be easily and securely held inside. Further, by covering the tip of the upper arm 11 with the cap member 33, the cap member 33 can be made to function as a decorative material covering the end surface of the upper support 9, and thus the design of the appearance of the top / bottom desk 1 is improved. Can be increased.

Further, the connecting member 3 is composed of a pair of connecting pieces 17 and 17 which are arranged apart from each other in the front and rear, and a control unit is provided in a space portion 19 formed between these connecting pieces 17 and 17 before and after, The inside of the upper arm 11 and the space 19 formed between the connecting pieces 17 and 17 are communicated with each other through an insertion opening provided at the end in the left-right direction of the connecting piece 17 to connect the control unit 6 and the lifting mechanism unit 5. The unit-to-unit wiring cable 20 and the operation unit wiring cable 15 that connects the control unit 6 and the operation unit 7 are both connected to the space unit 19, so that it can be used during office work and when the top plate height is changed. In any case, it is possible to prevent the inter-unit wiring cable 20 and the operation unit wiring cable 15 from coming into contact with the office worker and articles around the top plate. Further, since the inter-unit wiring cable 20 is not exposed to the outside, the design of the appearance of the top / bottom desk 1 is improved.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.
For example, in the above embodiment, the connecting member 3 is an integrally molded product having a pair of connecting pieces 17 and 17 and a connecting plate 18 that integrally connects the connecting pieces 17 and 17. However, only a pair of connecting pieces 17 and 17 may be used, and these connecting pieces 17 may be attached to the top plate 4 with a space in the front and rear, and a space 19 may be formed between the connecting pieces 17 and 17.

In the above embodiment, as the electronic device mounting portion 31, the upper end portion of each of the pair of side plates 38, 38 is formed by cutting out part of the central portion in the front-rear direction to form the wiring insertion opening 39. The wiring insertion opening 39 may be formed by cutting out one side in the front-rear direction instead of the central portion.

Further, in the above embodiment, as shown in FIG. 8A, the cap member 33 is fitted into the front end portion 9a of the upper support 9 so that the abutting portion 34a faces the top plate 4 side. As shown in FIG. 11A, the cap member 51 is attached to the upper support 9 so that the boss portion 50 corresponding to the contact portion 34a faces the opposite side of the top plate 4, that is, the boss portion 50 is exposed. You may fit in the front-end | tip part of the front end side 9a. Here, the cap member 51 shown in FIG. 11A is different from the cap member 33 shown in FIG. 8B only in the shape of the boss part 50 and the corresponding contact part 34a. Are basically the same.

That is, the cap member 51 of the present example is the same as the cap member 33 shown in FIG. 8B except that the boss portion 50 is formed in an oval shape in plan view as shown in FIG. 11B. When such a cap member 51 is used, the operation portion wiring cable 15 may be simply passed to the side of the boss portion 50 as shown in FIG. 11A, but as shown in FIG. By winding the operation wiring cable 15 around the boss 50 once (or a plurality of rotations), the surplus length of the operation unit wiring cable 15 can be accommodated, and the operation unit wiring cable 15 can be prevented from coming off. In other words, the boss portion 50 can function as a stopper for the operation portion wiring cable 15. At this time, since the boss part 50 is formed in an oval shape, the operation part wiring cable 15 is easily wound around the boss part 50 without being caught. In addition, as a planar view shape of the boss | hub part 50, it can replace with an ellipse shape, for example, can also be made into an ellipse shape or a circular shape.

In the above-described embodiment, a desktop personal computer including the PC main body 32 and the display 28 is used as the electronic device, and the PC main body 32 is placed on the electronic device placement unit 31, but a router or the like is used as the electronic device. May be placed on the electronic device placement unit 31.

According to the top plate elevating desk of the present invention, since the operation unit wiring cable is arranged in the upper arm, the operation unit wiring cable can be used both at work and when the top plate height is changed. It is possible to prevent the worker and the objects around the top plate from coming into contact.

DESCRIPTION OF SYMBOLS 1 Top plate raising / lowering desk 2 Leg body 3 Connecting member 4 Top plate 5 Elevating mechanism unit 6 Control unit 7 Operation part 8 Lower support body 9 Upper support body 11 Upper arm 12 Top plate mounting part 13 Downward part 14 Wiring holding part DESCRIPTION OF SYMBOLS 15 Operation part wiring cable 16 Power supply cable 17 Connection piece 19 Space part 20 Inter-unit wiring cable 21 Cover member 22 Wiring mounting part 27 Wiring insertion hole 28 Display 29 Connection wiring cable 31 Electronic equipment mounting part 32 PC main body 33, 51 Cap member

Claims (8)

1. A lower support disposed on the floor, an upper support disposed above the lower support, and an elevating mechanism unit that connects the lower support and the upper support in an extendable manner. A pair of legs that are spaced apart on the left and right;
   A connecting member that connects the upper supports of the pair of legs, and
   A flat top plate supported on the upper support of the pair of legs and disposed on the connecting member;
   In the top plate elevating desk having a control unit for controlling both the elevating mechanism unit of the pair of legs,
   The control unit is disposed on the lower surface side of the top plate,
   An operation unit for inputting an elevating operation signal of the elevating mechanism unit is connected to the control unit via an operation unit wiring cable, and is disposed on the lower surface side of the front edge of the top plate,
   The upper support is provided with an upper arm provided at the upper end thereof and supporting the lower surface of the top plate, extending in the front-rear direction,
   A top-and-bottom desk where the operation unit wiring cable is disposed in the upper arm.
2. The upper arm has a top plate mounting portion facing the lower surface of the top plate, a downward portion extending downward from an outer edge of the top plate mounting portion, and a lower end edge of the downward portion The top plate according to claim 1, further comprising a wiring holding portion extending toward the inside of the top plate placement portion, and the operation portion wiring cable being held by the wiring holding portion. Lifting desk.
3. The top-plate elevating desk according to claim 1, wherein a cap member for holding an operation unit wiring cable passed through the upper arm is attached to a tip of the upper arm.
4. The top-plate elevating desk according to claim 2, wherein a cap member for holding the operation unit wiring cable passed through the upper arm is attached to the tip of the upper arm.
5. The connecting member is configured to have a pair of connecting pieces disposed to be separated in the front-rear direction,
   The control unit is arranged in a space formed between the front and rear connecting pieces,
   The space formed in the upper arm and between the connecting pieces is communicated through an insertion port provided at a left and right end of the connecting piece,
   The inter-unit wiring cable that connects the control unit and the lifting mechanism unit of the pair of legs and the operation unit wiring cable that connects the control unit and the operation unit are both connected to the space portion. The top-plate elevating desk according to claim 1.
6. The connecting member is configured to have a pair of connecting pieces disposed to be separated in the front-rear direction,
   The control unit is arranged in a space formed between the front and rear connecting pieces,
   The space formed in the upper arm and between the connecting pieces is communicated through an insertion port provided at a left and right end of the connecting piece,
   The inter-unit wiring cable that connects the control unit and the lifting mechanism unit of the pair of legs and the operation unit wiring cable that connects the control unit and the operation unit are both connected to the space portion. The top-plate elevating desk according to claim 2.
7. The connecting member is configured to have a pair of connecting pieces disposed to be separated in the front-rear direction,
   The control unit is arranged in a space formed between the front and rear connecting pieces,
   The space formed in the upper arm and between the connecting pieces is communicated through an insertion port provided at a left and right end of the connecting piece,
   The inter-unit wiring cable that connects the control unit and the lifting mechanism unit of the pair of legs and the operation unit wiring cable that connects the control unit and the operation unit are both connected to the space portion. The top-plate elevating desk according to claim 3.
8. The connecting member is configured to have a pair of connecting pieces disposed to be separated in the front-rear direction,
   The control unit is arranged in a space formed between the front and rear connecting pieces,
   The space formed in the upper arm and between the connecting pieces is communicated through an insertion port provided at a left and right end of the connecting piece,
   The inter-unit wiring cable that connects the control unit and the lifting mechanism unit of the pair of legs and the operation unit wiring cable that connects the control unit and the operation unit are both connected to the space portion. The top-plate elevating desk according to claim 4.

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