JP6729666B2 - Wiring duct device for desk with lifting top plate - Google Patents

Description

The present invention relates to a wiring duct device for a desk with a lifting top plate, and more particularly to a wiring duct device for a desk with a lifting top plate in which a wiring duct is provided at the rear lower portion of the lifting top plate.

Conventionally, the legs arranged on both sides have a structure in which the lower part of the movable leg is supported to be vertically movable inside the fixed leg, and a drive mechanism is provided between the fixed leg and the movable leg to move the movable leg up and down. Various desk devices with a lifting top plate are provided in which the height of the top plate attached to the upper ends of the movable legs can be adjusted.

For example, in Patent Document 1, the leg bodies arranged on both sides have a structure in which the lower part of the movable leg is supported in the fixed leg so that the lower part of the movable leg can be moved up and down, and a drive mechanism is provided in association with the fixed leg and the movable leg. The movable legs can be moved up and down, and the height of the top plate attached to the upper ends of the movable legs can be adjusted, and the curtain plate is attached between the upper end portions of the rear end faces of the fixed legs of both legs, and the rear plate of the top plate is attached. There is disclosed a desk device with a lifting top plate in which a wiring duct is formed between an edge and an upper end of a curtain plate.

Further, in Patent Document 2, a locking piece is provided on the upper surface of a front end portion of a support substrate having a hinge portion that is vertically bendable toward the rear end portion, and a closing piece that is elastically deformable in the front-rear direction is provided at the rear end. The end of the duct unit, which is erected upwards, rearward of the hinge portion, is located at the upper end of the curtain plate that is erected so as to be spaced apart from the lower surface of the rear end of the top plate by the required dimension, and the upper end of the closing piece. Disclosed is a wiring duct structure for a desk or the like, characterized in that it is fixed so that the bottom surface of the table and the lower surface of the table come into contact with or close to each other, and the locking piece is detachably engaged with a reinforcing member below the table. Has been done.

However, the wiring duct device described in Patent Document 1 is provided below the wiring duct formed between the rear edge of the top plate and the upper end of the curtain plate. Since the cord receiver is fixedly installed, it takes a great deal of effort because it is possible to sneak under the top plate and force a cramped posture for wiring work. Further, in the wiring duct structure of the desk or the like described in Patent Document 2, if the engaging piece on the upper surface of the front end portion of the support substrate and the reinforcing member below the top plate are disengaged, the support substrate is lowered around the hinge portion. Since it pivots and tilts in the direction, it is possible to easily store the cable and the like in the duct from the front of a desk or the like, but since the supporting substrate tilts downward due to the elastic hinge portion, When heavy cords are mounted, the inclination angle becomes large and the cords may fall during the wiring work.

Japanese Patent No. 4797912 Japanese Utility Model Publication No. 7-981

Therefore, in view of the above situation, the present invention is to solve the problem that the leg bodies arranged on both sides have a structure in which the movable leg is supported so as to be vertically movable with respect to the fixed leg, and the movable leg is supported by the upper ends of the both movable legs. In a desk device with an elevating top plate that allows the height of the top plate to be adjusted, a desk with an elevating top plate that can easily perform wiring work to a wiring duct provided on the rear portion of the lower surface of the top plate in a comfortable posture. The point is to provide a wiring duct device.

In order to solve the above-mentioned problems, the present invention configures a wiring duct device for a desk with a lifting top plate as described below.

(1)
A desk with a lift top plate that has a structure in which the legs arranged on both sides are supported so that the movable leg can move up and down with respect to the fixed leg, and the height of the top plate supported by the upper ends of both movable legs can be adjusted. , A predetermined space is provided between the top plate and the rear part of the bottom plate, and the rear part of the duct cover having a rising plate at the front edge can be vertically rotated by a horizontal support shaft. And the duct cover is held in a substantially horizontal state by a retaining means that can be engaged and disengaged. With the duct cover opened, the angle between the lower surface of the top plate and the duct cover is 45° to 70°. A wiring duct device for a desk with an elevating top plate, characterized in that a regulating portion is provided at the rear end of the duct cover so as to be held at an angle so as to contact the lower surface of the top plate.

( 2 )
Both ends of a beam that extends in the lateral direction are attached to the upper ends of the movable legs of the legs on both sides, and the center of a supporting rod that extends in the front-rear direction is fixed to both sides of the beam. The top plate is mounted and mounted on the upper surface of the rod, and the rear side of the duct cover is attached to both support rods on the rear side of the beam by horizontal spindles so as to be vertically rotatable, and the duct cover is attached. (1) A wiring duct device for a desk with a lifting ceiling plate according to (1), wherein a holding means that can be engaged with and disengaged from the beam that holds the duct cover in a substantially horizontal state is provided at the front end portion of the above.

( 3 )
The duct cover has side plates that are rotatably supported by the support shafts on both rear sides of a support plate, and has a rising plate at the front edge, and the support plate is substantially flush with the lower surface of the beam. In a substantially horizontal state, locking tools as the holding means provided on both sides of the rising plate are releasably engaged with the rear surface of the beam, and the duct cover is formed at a predetermined angle on the rear end of the side plate. ( 2 ) A wiring duct device for a desk with a lifting top plate according to ( 2 ), wherein a regulation portion for holding the same is formed.

The above-described wiring duct device for the desk with the lifting top plate of the present invention has the following effects.

According to the configuration of (1), even if the duct cover is opened, the duct cover can be reliably held in a tilted state, and there is no risk that the cords will fall off due to movement of the duct cover during wiring work. Since the duct cover is opened at an inclination angle of 45° to 70°, wiring work to the wiring duct under the top plate can be easily performed in a comfortable posture, and wiring work from the front side is also easy. Further, even if the cords are mounted on the wiring duct, the duct cover is held at a constant angle, so that it does not fall off or slip off. Further, since the duct cover is provided on the rear portion of the lower surface of the top plate, the front portion below the top plate can be widely used. Furthermore, when the duct cover is opened and tilted, the rising plate serves as a receiving portion, which facilitates wiring work for cords.

According to the configuration of ( 2 ), the beam supporting the top plate and both supporting rods can be used to attach the duct cover to secure a sufficient duct space, and when the duct cover is closed, It becomes inconspicuous and has excellent appearance.

According to the configuration of ( 3 ), the structure has rigidity in spite of the simple structure, and when the duct cover is opened and tilted, the rising plate serves as a receiving portion and wiring of cords is performed. Work becomes easy.

It is a perspective view showing a desk with a lifting top plate according to the present invention. Similarly, it is an exploded perspective view of a desk with a lifting top plate. FIG. 3 is a perspective view showing a state in which two desks with a lifting top plate are installed adjacent to each other laterally and the top plate of one of the desks is raised. It is a perspective view of a duct cover. It is a partial perspective view of the state which closed the duct cover. It is a longitudinal cross-sectional view of the state of FIG. It is a partial perspective view of the state which opened the duct cover. It is a longitudinal cross-sectional view of the state of FIG. It is a partial perspective view of the state which removed the decorative cover. It is an exploded perspective view of a makeup cover. It is a partial perspective view which shows the end part structure of a beam.

Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. FIG. 1 shows a desk with a lifting top plate according to the present invention, and FIGS. 2 to 8 show the details thereof. In the figure, reference numeral 1 is a leg, 2 is a top plate, 3 is a beam, 4 is a support rod, and 5 is a support rod. The duct cover, 6 is a support shaft, and 7 is a locking tool.

As shown in FIGS. 1 and 2, the wiring duct device for the desk with the lifting top plate according to the present invention makes it possible to adjust the height of the top plate 2 supported by the upper ends of the legs 1, 1 arranged on both sides. A desk A with a lifting top plate, in which a predetermined space is provided between the top plate 2 and the lower surface of the top plate 2, and the rear part of the duct cover 5 is a horizontal support shaft 6 so that the front part is in the vertical direction. And the duct cover 5 is held in a substantially horizontal state by holding means 7 that can be engaged and disengaged. With the duct cover 5 open, the lower surface 8 of the top plate 2 and the duct cover are formed. The angle is set to be smaller than 90°.

Here, as shown in FIG. 2, the leg body 1 has a structure in which a movable leg 10 is supported so as to be vertically movable with respect to a fixed leg 9, and the movable legs 10 and 10 of the leg bodies 1 and 1 on both sides are supported. Both ends of the beam 3 extending in the lateral direction are attached to the upper end, and the central portions of the supporting rods 4 and 4 extending in the front-rear direction are fixed to both side portions of the beam 3 so as to fix the beam 3 and the supporting rod 4, respectively. The top plate 2 is placed and mounted on the upper surface of 4.

As shown in FIGS. 7 and 8, the present invention is to maintain the angle between the lower surface 8 of the top plate 2 and the duct cover 5 at an angle of 45° to 70° with the duct cover 5 opened. At the rear end of the duct cover 5, there are provided restricting portions 11, 11 that come into contact with the lower surface 8 of the top plate 2. It is particularly preferable that the angle formed by the lower surface 8 of the top plate 2 and the duct cover 5 is 60°.

Then, on the rear side of the beam 3, both side rear portions of the duct cover 5 are vertically rotatably attached to the support rods 4 and 4 by horizontal support shafts 6 and 6, and the front end portion of the duct cover 5 is attached. Further, there is provided a locking tool as a holding means 7 which can be engaged with and disengaged from the beam 3 which holds the duct cover 5 in a substantially horizontal state. Here, as the holding means 7, those using a magnet and various structures can be adopted, and the position where it is provided is not particularly limited. Hereinafter, in the embodiment, as an example of the holding means 7, a lock 7 having a barbed structure will be described.

Specifically, as shown in FIGS. 2 and 4, the duct cover 5 has side plates 13 and 13 rotatably supported by the support shafts 6 and 6 at rear portions on both sides of the support plate 12, and The locking member 7, which has a barbed structure, is provided on both sides of the rising plate 14 in a substantially horizontal state where the supporting plate 12 is substantially horizontal with the lower surface 15 of the beam 3 and has a rising plate 14 at the front edge. 7 is releasably engaged with the rear surface 16 of the beam 3, and a restricting portion 11 for holding the duct cover 5 at a predetermined angle is formed at the rear end of the side plate 13. Incidentally, the rear surface 16 of the beam 3 is formed with an engagement hole in which the claw portion 7A of the locking tool 7 is locked. The duct cover 5 is continuously provided on the rear side of the beam 3, the rising plate 14 and the rear surface 16 of the beam 3 are located close to each other, and the duct cover 5 extends from the duct space formed by the duct cover 5. 3 can be wired in the groove 24 through the cord insertion hole formed in the rear surface 16.

More specifically, as shown in FIGS. 1 to 3 and 5, the fixed leg 9 is provided with a grounding leg 17 extending in the front-rear direction at the lower end thereof, and at least the front and rear end portions of the grounding leg 17 are in plan view. The top plate 2 projects laterally beyond the side edge 18, and the lateral projections are contact portions 19, 19. Specifically, as shown in FIGS. 1 and 2, the fixed leg 9 of the leg body 1 fixes the center portion of the front and rear of the grounding leg 17 extending in the front-rear direction to the lower end of the tubular outer cylinder 20. The movable leg 10 is formed by a single or a plurality of tubular members provided inside the outer tubular member 20 to form a telescopic continuous tubular member. In the present embodiment, two expansion tubes, an inner cylinder 21 and an intermediate cylinder 22, are coaxially provided inside the outer cylinder 20.

FIG. 3 shows a state in which two desks A and B with a lifting top plate according to the present invention are installed laterally adjacent to each other. When the abutting portions 19, 19 provided on the fixed legs 9, 9 of the legs 1, 1 of the desks A, B with both lifts installed adjacent to each other are brought into contact with each other in the front and rear portions and installed in the closest state However, since a gap is formed between the side edges 18 of the adjacent tops 2 and 2, even if the top 2 of one of the desks A with the lifting tops is moved up and down, the other desk with the lifting tops. The lifting and lowering operation is performed without being interfered by the top plate 2 of B. Here, it is desirable that the contact portion 19 is formed of an elastic material such as rubber having a large contact friction resistance.

The mechanism for moving the movable leg 10 up and down with respect to the fixed leg 9 is stored inside the associated extension telescopic cylinder. As shown in FIG. 2, a mounting body 23 is fixed to the upper end of the inner cylinder 21, and a driving motor such as a servo motor or a stepping motor capable of controlling the rotation speed is built in the mounting body 23. In addition, an elevating mechanism section configured by a feed screw mechanism and the like provided inside the expansion and contraction connecting cylinder and the outer cylinder 20 is stored. Then, the mounting bodies 23 are mounted in both ends of the beam 3 which is open in the lateral direction and which is open upward, and the center portions of the supporting rods 4, 4 extending in the front-rear direction are fixed to the both sides of the beam 3, respectively. The top plate 2 is placed on the upper surfaces of the beam 3 and the support rods 4 and 4, and is attached by screwing from below.

In addition, an electronic control unit 25 for controlling a drive motor is installed inside the groove 24 of the beam 3, and an operation switch 26 of the electronic control unit 25 is provided with one switch as shown in FIG. 1, FIG. 5 and FIG. Is provided on the front side of the support rod 4, and its wiring is connected to the electronic control unit 25 from the inside of the support rod 4 through the groove 24 of the beam 3. In addition, it is also preferable to cover the entire support rod 4 with a cover 27 made of synthetic resin.

Further, on both sides of the rear part of the top plate 2, wiring function parts 28, 28 are provided in association with the wiring duct device including the duct cover 5 provided therebelow. The wiring function unit 28 is provided with a wiring cover 30 having a function for inserting wiring in an opening 29 formed vertically through the top plate 2, and an outlet 31 equipped with various connection terminals. Set up.

Further, it is necessary to supply electric power from the wiring duct device to the electronic control device 25 and the drive motor through the concave groove 24 of the beam 3 or wire a LAN cable for communication. Therefore, as shown in FIGS. 5 to 8, cords drawn from a floor surface such as an access floor are attached to the rear portion of the fixed leg 9 of the leg 1, and the upper end is left behind to the rear end of the top plate 2. A rising wiring duct 32 attached to the lower surface 8 of the section is provided. The start-up wiring duct 32 is made by fixing a flat core material made of a synthetic resin to a part of a tubular bag with a fastener by sewn, heat-welded, or fixed by adhering the cord to the core material. It is a structure that closes the fastener while holding it inside and holds it inside. Although the top plate 2 moves up and down, in the present embodiment, the height of the top surface of the top plate 2 is 1250 mm when it is raised most, and the height of the top surface of the top plate 2 is 650 mm when it is lowered most. A surplus portion 33 capable of absorbing the height is provided above the rising wiring duct 32. Here, the rising wiring duct 32 is deformed when the top plate 2 is moved up and down, but the deformation direction is constrained by the action of the above-mentioned core material, and the surplus portion 33 remains at the rear end of the top plate 2 even in the most lowered state. I try not to project backwards.

Also, as shown in FIGS. 1 and 5 to 8, a back panel 34 and side panels 35, 35 are attached to the lower surface of the top plate 2 by L metal fittings 36,... It is installed. Here, the back panel 34 and the side panel 35 are provided with a sufficient vertical dimension below the top plate 2, and even when the top plate 2 is raised to the maximum height, the adjacent top plates 2 are The back panel 34 and the side panel 35 at the lowest height are set to overlap each other. A space is also set between the side panels 35, 35 provided on the top plates 2, 2 of the adjacent desks A, B with the lifting top plate.

Further, the support plate 12 of the duct cover 5 has a plurality of elongated holes 37,... Formed in the vertical and horizontal directions. Hold. Further, since the duct cover 5 is made of a steel plate, it is possible to attract and hold the wiring equipment by using a magnet.

As shown in FIGS. 5 and 6, when the duct cover 5 is closed, the lower surface 15 of the beam 3 and the support plate 12 are supported in a substantially horizontal state so as to be substantially flush with each other. It becomes a thing and does not get in the way at all. Further, as shown in FIGS. 7 and 8, when the duct cover 5 is in an open state, the support plate 12 faces substantially the front when the lower side of the top plate 2 is looked obliquely from above, and Since the rising plate 14 serves as a receiving part, wiring work is easy, and even if the cords become heavy, the restricting parts 11 and 11 contact the lower surface 8 of the top plate 2 to restrict rotation. , The open position is stable.

As shown in FIG. 5, an attachment body 23 for supporting the leg body 1 is attached to the end portion of the beam 3, but since the groove 24 of the beam 3 is set slightly deep, Therefore, in order to eliminate the risk of pinching a finger between the upper ends of the outer cylinder 20 and the intermediate cylinder 22 of the leg 1 and the lower surface 15 of the beam 3, the lower surface including the lower surface 15 is notched. ing. A decorative cover 38 made of synthetic resin is attached to cover the notch 39 at the end of the beam 3 and the attachment body 23.

The structure for attaching the decorative cover 38 and the end of the beam 3 will be described with reference to FIGS. 5 and 9 to 11. The decorative cover 38 is a member having a substantially L shape in a front view and capable of covering the notch 39 and the end surface of the beam 3, and has a circular opening 40 for receiving the inner leg 21 of the leg 1, The diameter portion of the opening 40 is divided into left and right. That is, as shown in FIG. 10, the decorative cover 38 includes an inner cover 41 that covers the bottom surface side and an outer cover 42 that covers the side surface side and the bottom surface side, and are joined together by butting.

The inner cover 41 has an inclined portion 44 whose end portion is bent downward and extends from a horizontal portion 43 that covers the bottom surface side, and a semicircular hole that forms the opening 40 at the end edge of the horizontal portion 43. 40A is formed, engaging pieces 45, 45 extending downward are formed at both ends, and a plurality of engaging claws 46,..., Which are triangular dowels, are formed outside the engaging pieces 45, 45. The horizontal portion 43 has a shape in which an engaging step portion 47 that engages with a lower side of the cut edge of the lower surface 15 corresponding to the cutout portion 39 is formed at an end edge of the horizontal portion 43. On the other hand, the outer cover 42 is substantially L-shaped when viewed from the front, has a horizontal portion 48 that covers the bottom surface side and a vertical portion 49 that covers the end surface, and the opening 40 is formed at the edge of the horizontal portion 48. Forming a semi-circular hole 40B, and forming engaging pieces 50, 50 extending downward at both ends, and engaging claws 51,... Further, reinforcing pieces 52, 52 are continuously provided on the inner surface of the vertical portion 49 on both sides in the vicinity of the corner of the horizontal portion 48, and projections 53 are respectively provided on the inner lower ends of the reinforcing pieces 52. It is the formed shape.

Further, as shown in FIG. 9, the beam 3 is formed with a concave groove 24 having a lower surface 15, a rear surface 16 and a front surface 54 and having a substantially U-shaped cross section. The notch 39 is formed by notching the lower surface 15, the rear surface 16 and the lower portion of the front surface 54 at the end of the beam 3. At the end of the beam 3, a reinforcing member 55 for fixing the mounting body 23 is welded and fixed to the rear surface 16 and the front surface 54. The reinforcing member 55 is a member having a substantially U-shaped cross section which is opened downward, and is formed by bending downwardly extending hanging plates 57, 57 from both sides of the upper surface plate 56. The two hanging plates 57, 57 are joined to the inner surfaces of the rear surface 16 and the front surface 54 by spot welding while being set flush with each other. .. of the inner cover 41 and the engaging claws 51 of the outer cover 42 are simultaneously received and engaged with the hanging plates 57, 57 of the reinforcing member 55. 58, and the engaging recesses 59, 59 for receiving the reinforcing pieces 52, 52 of the outer cover 42 and engaging the protrusions 53, 53 are formed.

In order to attach the decorative cover 38 to the end portion of the beam 3, first, the engaging step portion 47 of the inner cover 41 is engaged below the end edge of the lower surface 15 of the cutout portion 39, and both engaging pieces are engaged. 45, 45 are inserted inside the hanging plates 57, 57 of the reinforcing member 55, and the locking claws 46,... Then, while both the reinforcing pieces 52, 52 of the outer cover 42 are slidably engaged with the engaging recesses 59, 59 of the reinforcing member 55 from below, both the engaging pieces 50, 50 both hanging plates 57 of the reinforcing member 55. , 57, and the locking claws 51,... Are directed toward the horizontally elongated holes 58, 58 to be engaged therewith. In this state, the semicircular hole 40A and the semicircular hole 40B form a circular opening 40 and surround the inner cylinder 21 of the leg 1.

It is also preferable that an instruction manual for the desk with the lifting top plate can be held on the inner surface side of the decorative cover 38. It is also preferable to display a logo, a brand name, or a description of the built-in object (instruction manual) on the surface of the vertical portion 49 of the outer cover 42 of the decorative cover 38.

A, B desk with lift top,
1 leg, 2 top plate,
3 beams, 4 support rods,
5 duct covers, 6 support shafts,
7 locking tool (holding means), 7A claw part,
8 lower surface, 9 fixed leg,
10 movable legs, 11 restriction part,
12 support plates, 13 side plates,
14 rising plate, 15 bottom surface,
16 rear surface, 17 grounding leg,
18 side edge, 19 contact part,
20 outer cylinder, 21 inner cylinder,
22 intermediate tube, 23 mounting body,
24 groove, 25 electronic control device,
26 operation switch, 27 cover,
28 wiring function part, 29 opening,
30 wiring cover, 31 outlet,
32 start-up wiring duct, 33 surplus part,
34 back panel, 35 side panel,
36 L metal fittings, 37 long hole,
38 makeup cover, 39 notch,
40 openings, 40A semi-circular holes,
40B semi-circular hole, 41 inner cover,
42 outer cover, 43 horizontal part,
44 inclined portion, 45 engaging piece,
46 locking claws, 47 engaging steps,
48 horizontal part, 49 vertical part,
50 engagement pieces, 51 locking claws,
52 reinforcing pieces, 53 protrusions,
54 front surface, 55 reinforcing member,
56 top plate, 57 hanging plate,
58 laterally long hole, 59 engaging recess.

Claims (3)

A desk with a lift top plate that has a structure in which the legs arranged on both sides are supported so that the movable leg can move up and down with respect to the fixed leg, and the height of the top plate supported by the upper ends of both movable legs can be adjusted. , A predetermined space is provided between the top plate and the rear part of the bottom plate, and the rear part of the duct cover having a rising plate at the front edge can be vertically rotated by a horizontal support shaft. And the duct cover is held in a substantially horizontal state by a retaining means that can be engaged and disengaged. With the duct cover opened, the angle between the lower surface of the top plate and the duct cover is 45° to 70°. A wiring duct device for a desk with an elevating top plate, characterized in that a regulating portion is provided at the rear end of the duct cover so as to be held at an angle so as to abut against the lower surface of the top plate. Both ends of a beam that extends in the lateral direction are attached to the upper ends of the movable legs of the legs on both sides, and the center of a supporting rod that extends in the front-rear direction is fixed to both sides of the beam. The top plate is mounted and mounted on the upper surface of the rod, and the rear side of the duct cover is attached to both support rods on the rear side of the beam by horizontal spindles so as to be vertically rotatable, and the duct cover is attached. of the front end portion, the wiring duct system of lifting the top plate desk with the beam according to claim 1, characterized in that provided disengageably retaining means relative to the duct cover is held substantially horizontal state. The duct cover has side plates that are rotatably supported by the support shafts on both rear sides of a support plate, and has a rising plate at the front edge, and the support plate is substantially flush with the lower surface of the beam. In a substantially horizontal state, locking tools as the holding means provided on both sides of the rising plate are releasably engaged with the rear surface of the beam, and the duct cover is formed at a predetermined angle on the rear end of the side plate. The wiring duct device for a desk with a lifting/lowering plate according to claim 2, wherein a regulating portion for holding the same is formed.

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