JP2018064978A - Wiring duct device of desk with liftable top plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring duct device of a desk with a liftable top plate having a structure where leg bodies arranged on both sides include movable legs supported so as to moved vertically with respect to fixed legs, capable of changing height of the top plate supported at an upper edge of both movable legs, and facilitating wiring work arranged in a lower face rear part of the top plate in an easy posture.SOLUTION: A predetermined space is arranged between a lower face rear part of a top plate 2 and the top plate, a rear part of a duct cover 5 is attached with a horizontal support shaft 6 so as to allow a front part to be rotated vertically, a front edge of the duct cover is kept in a generally horizontal state with an engagement tool 7 capable of being engaged/disengaged, and an angle formed by a lower face 8 of the top plate and the duct cover is smaller than 90° in an opened state of the duct cover. A restriction part 11 contacting the lower face of the top plate is arranged at a rear edge of the duct cover so as to keep the angle formed by the lower face of the top plate and the duct cover is 45°-70° in the opened state of the duct cover.SELECTED DRAWING: Figure 8

Description

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

  Conventionally, the legs arranged on both sides are structured so that the lower part of the movable leg can be moved up and down inside the fixed leg, and the movable leg can be moved up and down by providing a drive mechanism between the fixed leg and the movable leg. Various desk devices with an elevating top plate that can adjust the height of the top plate attached to the upper end of the movable leg are provided.

  For example, Patent Document 1 has a structure in which legs arranged on both sides are supported in a 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 leg can be raised and lowered, the height of the top plate attached to the upper end of the movable leg can be adjusted, and a curtain plate is attached between the upper end portions of the rear end surfaces of the fixed legs of both legs, There is disclosed a desk device with an elevating ceiling plate in which a wiring duct is formed between an edge and an upper end portion of a curtain plate.

  Further, in Patent Document 2, a locking piece is provided on the upper surface of the front end portion of the support substrate having a hinge portion that can be bent in the vertical direction near the rear end portion, and a closing piece that is elastically deformable in the front-rear direction is provided at the rear end. In each duct unit erected upward, the rear end part of the hinge part is placed on the upper end of the curtain plate erected at a required distance from the lower surface of the rear end of the top plate, and the upper end of the closing piece A wiring duct structure in a desk or the like is disclosed, wherein the locking piece is fixedly attached so as to be in contact with or in close proximity to the top plate and the engaging piece is detachably engaged with a reinforcing member below the top plate. Has been.

  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 portion of the curtain plate. Since the cord receiver is fixedly installed, it takes a lot of labor for wiring work because it gets under the top plate and is forced into a cramped posture. Further, in the wiring duct structure in a desk or the like described in Patent Document 2, if the engagement between the engaging piece on the upper surface of the front end portion of the support substrate and the reinforcing member below the top plate is released, the support substrate is lowered around the hinge portion. Since the cable can be easily accommodated in the duct from the front of a desk or the like, the support substrate is inclined downward by the elastic hinge portion. When heavy cords are loaded, the inclination angle becomes large and the cords may fall during wiring work.

Japanese Patent No. 4797912 No. 7-981

  Therefore, in view of the above-mentioned situation, the present invention intends to solve the problem that the legs arranged on both sides are structured so that the movable legs can be moved up and down with respect to the fixed legs, and are supported at the upper ends of 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 device with an elevating top plate that can easily perform wiring work to a wiring duct provided at the rear rear surface of the top plate in an easy posture. It is in providing a wiring duct device.

  In order to solve the above-mentioned problems, the present invention has a structure in which the legs arranged on both sides are supported so that the movable legs can be moved up and down with respect to the fixed legs, and the height of the top plate supported by the upper ends of both movable legs is set. A desk with an elevating and lowering top plate that can be adjusted, and a predetermined space is provided between the top plate and a rear surface of the top plate, and the front portion of the duct cover is moved up and down with a horizontal support shaft. The duct cover is mounted in a rotatable manner, and is held in a substantially horizontal state by a holding means that can be engaged and disengaged, and the angle formed between the lower surface of the top plate and the duct cover is more than 90 ° with the duct cover opened. A wiring duct device for a desk with an elevating top board, characterized in that the angle is set to a small angle (claim 1).

  Here, in a state where the duct cover is opened, the rear surface of the top cover and the bottom surface of the top cover are held at the rear end of the duct cover so that the angle formed by the bottom surface of the top cover and the duct cover is 45 ° to 70 °. It is preferable that a restricting portion that is in contact is provided (claim 2).

  Specifically, both ends of the beam extending in the lateral direction are attached to the upper ends of the movable legs of the legs on both sides, and the central part of the support rod extending 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 beam and the support rod, and the rear sides of the duct cover can be turned up and down by a horizontal support shaft on the rear side of the beam and on both support rods. At the same time, the holding means is provided at the front end of the duct cover so as to be able to be engaged with and disengaged from the beam held by the duct cover in a substantially horizontal state.

  Further, the duct cover has side plates that are rotatably supported by the support shafts at both rear portions of the support plate, and has a rising plate at a front edge, and the support plate is substantially flush with the lower surface of the beam. In one substantially horizontal state, engaging means as the holding means provided on both sides of the upright plate are detachably engaged with the rear surface of the beam, and the duct cover is further attached to the rear end of the side plate. It is more preferable to form a restricting portion for maintaining the angle (claim 4).

  The wiring duct device for a desk with an elevation board according to claim 1 as described above has a structure in which the legs disposed on both sides are supported so that the movable legs can be moved up and down with respect to the fixed legs. A desk with an elevating top panel that enables the height of the top panel supported at the upper end to be adjusted, and a predetermined space is provided between the top panel and a rear surface of the lower surface of the top panel so that the rear part of the duct cover is placed horizontally. The front part is attached to the support shaft so as to be pivotable in the vertical direction, the duct cover is held in a substantially horizontal state by a detachable holding means, and the duct cover is opened and the lower surface of the top plate Since the angle formed by the duct cover is smaller than 90 °, the angle between the lower surface of the top plate and the duct cover is smaller than 90 ° even when the duct cover is opened. Wiring work to the wiring duct performed in It can be easily performed in an easy posture, and 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. In addition, since the duct cover is provided at the lower rear portion of the top plate, the front portion below the top plate can be widely used.

  According to claim 2, in a state where the duct cover is opened, an angle between the lower surface of the top plate and the duct cover is maintained at an angle of 45 ° to 70 °. Since the restriction part that contacts the lower surface of the cable is provided, the duct cover can be securely held in an inclined state, the duct cover does not move during wiring work, and the cords do not fall off. Since it is opened at an inclination angle of 45 ° to 70 °, wiring work is facilitated from the front side.

  According to the third aspect, both ends of the beam extending in the lateral direction are attached to the upper ends of the movable legs of the legs on both sides, and the center part of the support rod extending 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 beam and the support rod, and the rear sides of the duct cover can be turned up and down by a support shaft that is behind the beam and is horizontal to both support rods. And a holding means capable of engaging and disengaging with respect to the beam held by the duct cover in a substantially horizontal state is provided at the front end portion of the duct cover. The duct cover can be attached by using it, and a sufficient duct space can be secured. In addition, when the duct cover is closed, the duct cover is not conspicuous from the front side, and the appearance is excellent.

  According to a fourth aspect of the present invention, the duct cover includes side plates that are pivotally supported by the support shafts at both rear portions of the support plate, and has a rising plate at a front edge, and the support plate is the beam. A locking tool as the holding means provided on both sides of the upright plate in a substantially horizontal state substantially flush with the lower surface of the beam is detachably engaged with the rear surface of the beam, and further on the rear end of the side plate. Since the restricting portion for holding the duct cover at a predetermined angle is formed, it has rigidity despite the simple structure, and when the duct cover is opened and inclined, The board becomes a receiving part, and wiring work of cords becomes easy.

It is a perspective view which shows the desk with a raising / lowering top plate which concerns on this invention. It is a disassembled perspective view of the desk with a raising / lowering top board similarly. It is a perspective view of the state which installed the desk with two raising / lowering top boards adjacent to the side, and raised the top board of one desk. It is a perspective view of a duct cover. It is a fragmentary perspective view of the state where the duct cover was closed. It is a longitudinal cross-sectional view of the state of FIG. It is a fragmentary perspective view in the state where a duct cover was opened. It is a longitudinal cross-sectional view of the state of FIG. It is a fragmentary perspective view of the state which removed the decorative cover. It is a disassembled perspective view of a decorative cover. It is a fragmentary perspective view which shows the edge 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 an elevating top plate according to the present invention, and FIGS. 2 to 8 show the details thereof, in which 1 is a leg, 2 is a top plate, 3 is a beam, 4 is a support rod, A 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 a desk with a lifting table according to the present invention makes it possible to adjust the height of the table 2 supported by the upper ends of the legs 1 and 1 arranged on both sides. A desk A with an elevating and lowering top plate, in which a predetermined space is provided between the top plate 2 and the top plate 2 at the back of the lower surface of the top plate 2, and the rear portion of the duct cover 5 is vertically supported by a horizontal support shaft 6. The duct cover 5 is held in a substantially horizontal state by a detachable holding means 7, and the duct cover 5 is formed between the lower surface 8 of the top plate 2 and the duct cover with the duct cover 5 opened. The angle is set to be smaller than 90 °.

  Here, as shown in FIG. 2, the leg 1 has a structure in which the movable leg 10 is supported so as to be movable up and down with respect to the fixed leg 9, and the movable legs 10, 10 of the legs 1, 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 center portions of the support rods 4, 4 extending in the front-rear direction are fixed to both sides of the beam 3. The top plate 2 is mounted on the upper surface of 4.

  As shown in FIGS. 7 and 8, in the present invention, the angle formed between the lower surface 8 of the top plate 2 and the duct cover 5 is maintained at an angle of 45 ° to 70 ° with the duct cover 5 opened. Further, at the rear end of the duct cover 5, restricting portions 11 and 11 that abut against the lower surface 8 of the top plate 2 are provided. The angle formed between the lower surface 8 of the top plate 2 and the duct cover 5 is particularly preferably 60 °.

  The rear side of the duct cover 5 is attached to the support rods 4 and 4 on both support rods 4 and 4 so as to be vertically rotatable on the support rods 4 and 4, and the front end portion of the duct cover 5. Further, a locking tool is provided as a holding means 7 that can be engaged and disengaged with respect to the beam 3 held by the duct cover 5 in a substantially horizontal state. Here, as the holding means 7, one using a magnet or various structures can be adopted, and the position where the magnet is provided is not particularly limited. Hereinafter, the embodiment will be described by using a hook-shaped locking tool 7 as an example of the holding means 7.

  Specifically, as shown in FIGS. 2 and 4, the duct cover 5 includes side plates 13 and 13 that are rotatably supported by the support shafts 6 and 6 at both rear portions of the support plate 12. The locking device 7 having a hook structure having a rising plate 14 at a front edge, and the supporting plate 12 provided on both sides of the rising plate 14 in a substantially horizontal state with the lower surface 15 of the beam 3. 7 is removably engaged with the rear surface 16 of the beam 3, and a restricting portion 11 is formed at the rear end of the side plate 13 to hold the duct cover 5 at a predetermined angle. In addition, 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 beam from the duct space formed by the duct cover 5. 3 can be wired in the groove 24 through a 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, and at least the front and rear end parts of the grounding leg 17 in the plan view. It protrudes to the side from the side edge 18 of the top plate 2, and the side protrusions are contact parts 19, 19. Specifically, as shown in FIGS. 1 and 2, the fixed leg 9 of the leg 1 fixes the front and rear central portions of the grounding leg 17 extending in the front-rear direction to the lower end of the cylindrical outer tube 20. The movable leg 10 is constituted by a single or a plurality of cylindrical members provided inside the outer cylinder 20 to form an extendable continuous cylinder. In the present embodiment, the inner cylinder 21 and the intermediate cylinder 22 are provided coaxially inside the outer cylinder 20 to constitute an extendable continuous cylinder.

  FIG. 3 shows a state in which two desks A and B with an elevation board according to the present invention are installed adjacent to each other in the lateral direction. 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 lifting and lowering boards installed adjacent to each other are abutted at the front and rear portions and installed in the closest state However, since a gap is formed between the side edges 18 and 18 of the adjacent top plates 2 and 2, even if the top plate 2 of the desk A with one lift table is raised or lowered, the other desk with the lift table It moves up and down without being interfered by the B top plate 2. Here, the contact portion 19 is preferably formed of an elastic material such as rubber having a large contact frictional resistance.

  The mechanism for moving the movable leg 10 up and down with respect to the fixed leg 9 is stored in the telescopic continuous tube in association with the above-described telescopic tube. 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. The elevating mechanism portion configured by the above-described telescopic continuous cylinder and the feed screw mechanism provided inside the outer cylinder 20 is stored. And the said attachment body 23 is attached in the both ends of the upward open beam 3 extended in the horizontal direction, The center part of the support rods 4 and 4 extended in the front-back direction is being fixed to the both sides of this beam 3, The top plate 2 is placed on the upper surface of the beam 3 and the support rods 4 and 4 and attached by screwing from below.

  Further, an electronic control device 25 for controlling the drive motor is incorporated in the concave groove 24 of the beam 3, and an operation switch 26 of the electronic control device 25 is set as shown in FIGS. The wiring is connected from the inside of the support rod 4 to the electronic control device 25 through the concave groove 24 of the beam 3. 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 portion of the top plate 2, wiring function portions 28, 28 are provided in relation to a wiring duct device comprising a duct cover 5 provided below the top plate 2. The wiring function unit 28 is provided with a wiring cover 30 having a function for inserting wiring inside an opening 29 formed through the top plate 2 so as to penetrate vertically, and an outlet 31 having various connection terminals. Or provide.

  Further, it is necessary to supply electric power from the wiring duct device through the concave groove 24 of the beam 3 to the electronic control device 25 and the drive motor, or to wire a LAN cable for communication. Therefore, as shown in FIG. 5 to FIG. 8, the cords drawn from the floor surface such as the access floor are attached to the back surface portion of the fixed leg 9 of the leg body 1, and the rear end of the top plate 2 leaving the upper end. A rising wiring duct 32 attached to the lower surface 8 is provided. The start-up wiring duct 32 is formed by sewing a flat core material made of a synthetic resin into a part of a cylindrical bag with a fastener, or by heat-welding or adhering the cord to the core material. The structure is such that the zipper is closed and held inside while keeping along. Although the top plate 2 moves up and down, in this embodiment, the height of the top surface of the top plate 2 is 1250 mm when it is most raised, and the height of the top surface of the top plate 2 is 650 mm when it is most lowered. A surplus portion 33 capable of absorbing the height is provided in the upper portion of the rising wiring duct 32. Here, the rising wiring duct 32 is deformed when the top plate 2 is raised and lowered, but the deformation direction is constrained by the action of the above-mentioned core material, and the surplus portion 33 is the rear end of the top plate 2 even in the lowest position. It is designed not to protrude backwards.

  Further, as shown in FIGS. 1 and 5 to 8, a back panel 34 and side panels 35, 35 are respectively provided on the lower surface of the top plate 2 with L brackets 36,. It is installed. Here, the back panel 34 and the side panel 35 are provided with sufficient vertical dimensions below the top plate 2, and even when the top plate 2 is raised to the maximum height, the adjacent top plate 2 is The back panel 34 and the side panel 35 at the lowest height are set to overlap each other. And it sets so that a clearance gap may be ensured also between the side panels 35 and 35 provided in the top plates 2 and 2 of the desks A and B with an adjacent elevating top plate.

  Further, the support plate 12 of the duct cover 5 has a plurality of elongated holes 37 formed vertically and horizontally, and the elongated holes 37 are used to connect wiring devices such as table taps and transformers with a binding band. Hold. Further, since the duct cover 5 is made of a steel plate, it is also possible to attract and hold the wiring device using a magnet.

  As shown in FIGS. 5 and 6, the duct cover 5 is excellent in appearance because the lower surface 15 of the beam 3 and the support plate 12 are supported substantially in a horizontal state in a closed state. It becomes a thing and does not get in the way at all. As shown in FIGS. 7 and 8, when the duct cover 5 is opened, the support plate 12 faces substantially in front when the lower side of the top plate 2 is looked into from the obliquely upward direction. Since the upright plate 14 serves as a receiving portion, wiring work is easy, and even if the cords become heavy, the restricting portions 11 and 11 are in contact with the lower surface 8 of the top plate 2 so as to restrict rotation. Open posture is stable.

  As shown in FIG. 5, an attachment body 23 that supports the leg 1 is attached to the end of the beam 3. However, since the concave groove 24 of the beam 3 is set slightly deep, In view of the above, in order to eliminate the risk of a finger being caught 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 portion including the lower surface 15 is cut away. ing. In order to conceal the notch 39 at the end of the beam 3 and the mounting body 23, a decorative cover 38 made of synthetic resin is attached.

  A 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 substantially L-shaped member that can cover the notch 39 and the end surface of the beam 3, and has a circular opening 40 that receives the inner leg 21 of the leg 1, The diameter 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 is butt-joined to each other.

  The inner cover 41 has an inclined portion 44 whose end portion is bent downward and extends from a horizontal portion 43 covering the bottom surface side, and a semicircular hole forming the opening 40 at an 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 locking claws 46,... Made of triangular dowels are formed outside the engaging pieces 45, 45, and At the end edge of the horizontal portion 43, an engagement step portion 47 is formed to engage with the lower side of the cutting edge of the lower surface 15 corresponding to the notch portion 39. On the other hand, the outer cover 42 is substantially L-shaped when viewed from the front, and 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. A semicircular hole 40B is formed, and engaging pieces 50, 50 extending downward are formed at both ends, and a plurality of locking claws 51,... Made of triangular dowels are provided outside the engaging pieces 50, 50. Further, on both sides in the vicinity of the corner portion of the horizontal portion 48, reinforcing pieces 52, 52 are continuously extended from the inner surface of the vertical portion 49, and a protrusion 53 is formed on the inner lower end of the reinforcing piece 52. It is the formed shape.

  Further, as shown in FIG. 9, the beam 3 forms a concave groove 24 having a substantially U-shaped cross section including a lower surface 15, a rear surface 16, and a front surface 54. 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. A reinforcing member 55 for fixing the attachment body 23 is welded and fixed to the rear surface 16 and the front surface 54 at the end of the beam 3. The reinforcing member 55 is a member having a substantially U-shaped cross section that opens downward, and is formed by bending drooping plates 57 and 57 downward from both sides of the upper surface plate 56, and the upper surface plate 56 is formed on the upper surface of the beam 3. The two hanging plates 57, 57 are integrated with the rear surface 16 and the inner surface of the front surface 54 and integrated by spot welding. In addition, the hanging plates 57, 57 of the reinforcing member 55 are provided with horizontally elongated holes 58, which simultaneously receive and engage the locking claws 46, ... of the inner cover 41 and the locking claws 51, ... of the outer cover 42, respectively. 58, and engaging recesses 59 and 59 for receiving the reinforcing pieces 52 and 52 of the outer cover 42 and engaging the protrusions 53 and 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 notch portion 39, and both engaging pieces are engaged. 45 and 45 are inserted inside the hanging plates 57 and 57 of the reinforcing member 55, and the locking claws 46 are fixedly engaged with the horizontally long holes 58 and 58, respectively. Then, the two hanging plates 57 of the reinforcing member 55 are slidably engaged with the engaging recesses 59, 59 of the reinforcing member 55 from below. , 57 is inserted into the inside of the elongated holes 58, 58 to engage with the locking claws 51,. 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.

  In addition, it is also preferable that an instruction manual of the desk with the liftable 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 a built-in item (instruction manual) on the surface of the vertical portion 49 of the outer cover 42 of the decorative cover 38.

A, B Desk with lifting table,
1 leg, 2 top plate,
3 beam, 4 support rod,
5 Duct cover, 6 Support shaft,
7 Locking tool (holding means), 7A Claw part,
8 bottom surface, 9 fixed legs,
10 movable legs, 11 regulating sections,
12 support plates, 13 side plates,
14 Rising plate, 15 Lower surface,
16 rear surface, 17 grounding leg,
18 side edge, 19 contact part,
20 outer cylinder, 21 inner cylinder,
22 intermediate cylinder, 23 mounting body,
24 concave groove, 25 electronic control device,
26 Operation switch, 27 Cover,
28 wiring function part, 29 opening,
30 Wiring cover, 31 Outlet,
32 startup wiring duct, 33 surplus part,
34 Back panel, 35 Side panel,
36 L metal fittings, 37 long holes,
38 cosmetic cover, 39 cutout,
40 opening, 40A semicircular hole,
40B semicircular hole, 41 inner cover,
42 outer cover, 43 horizontal section,
44 slope part, 45 engagement piece,
46 latching claw, 47 engaging step,
48 horizontal parts, 49 vertical parts,
50 engaging pieces, 51 locking claws,
52 reinforcing pieces, 53 protrusions,
54 front surface, 55 reinforcing member,
56 top plate, 57 hanging plate,
58 laterally long holes, 59 engaging recesses.

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

  Conventionally, the legs arranged on both sides are structured so that the lower part of the movable leg can be moved up and down inside the fixed leg, and the movable leg can be moved up and down by providing a drive mechanism between the fixed leg and the movable leg. Various desk devices with an elevating top plate that can adjust the height of the top plate attached to the upper end of the movable leg are provided.

  For example, Patent Document 1 has a structure in which legs arranged on both sides are supported in a 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 leg can be raised and lowered, the height of the top plate attached to the upper end of the movable leg can be adjusted, and a curtain plate is attached between the upper end portions of the rear end surfaces of the fixed legs of both legs, There is disclosed a desk device with an elevating ceiling plate in which a wiring duct is formed between an edge and an upper end portion of a curtain plate.

  Further, in Patent Document 2, a locking piece is provided on the upper surface of the front end portion of the support substrate having a hinge portion that can be bent in the vertical direction near the rear end portion, and a closing piece that is elastically deformable in the front-rear direction is provided at the rear end. In each duct unit erected upward, the rear end part of the hinge part is placed on the upper end of the curtain plate erected at a required distance from the lower surface of the rear end of the top plate, and the upper end of the closing piece A wiring duct structure in a desk or the like is disclosed, wherein the locking piece is fixedly attached so as to be in contact with or in close proximity to the top plate and the engaging piece is detachably engaged with a reinforcing member below the top plate. Has been.

  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 portion of the curtain plate. Since the cord receiver is fixedly installed, it takes a lot of labor for wiring work because it gets under the top plate and is forced into a cramped posture. Further, in the wiring duct structure in a desk or the like described in Patent Document 2, if the engagement between the engaging piece on the upper surface of the front end portion of the support substrate and the reinforcing member below the top plate is released, the support substrate is lowered around the hinge portion. Since the cable can be easily accommodated in the duct from the front of a desk or the like, the support substrate is inclined downward by the elastic hinge portion. When heavy cords are loaded, the inclination angle becomes large and the cords may fall during wiring work.

Japanese Patent No. 4797912 No. 7-981

  Therefore, in view of the above-mentioned situation, the present invention intends to solve the problem that the legs arranged on both sides are structured so that the movable legs can be moved up and down with respect to the fixed legs, and are supported at the upper ends of 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 device with an elevating top plate that can easily perform wiring work to a wiring duct provided at the rear rear surface of the top plate in an easy posture. It is in providing a wiring duct device.

In order to solve the above-mentioned problems, the present invention has a structure in which the legs arranged on both sides are supported so that the movable legs can be moved up and down with respect to the fixed legs, and the height of the top plate supported by the upper ends of both movable legs is set. A desk with an elevating ceiling plate that can be adjusted, wherein a beam extending inward is provided at an upper end portion of the movable leg, and one of front and rear portions of the duct cover is rotatably supported on the lower surface side of the top plate. At the same time, a wiring duct device for a desk with an elevating top plate is provided, wherein the other of the front and rear portions of the duct cover is supported on the rear surface of the beam .

Here, it is also preferable to have a space between the duct cover and the lower surface of the top plate with the duct cover closed (Claim 2).

The wiring duct device for a desk with an elevation board according to claim 1 as described above has a structure in which the legs disposed on both sides are supported so that the movable legs can be moved up and down with respect to the fixed legs. A desk with an elevating top plate that enables adjustment of the height of the top plate supported at the upper end, wherein a wire capable of extending in a lateral direction is provided between the upper ends of the movable legs, and a duct is formed on the lower surface side of the top plate. Since one of the front and rear portions of the cover is pivotally supported and the other front and rear portions of the duct cover are supported on the rear surface of the beam, if the duct cover is opened, the wiring duct to the wiring duct performed under the top plate is submerged. wiring work as possible out be easily performed in a comfortable posture.

It is a perspective view which shows the desk with a raising / lowering top plate which concerns on this invention. It is a disassembled perspective view of the desk with a raising / lowering top board similarly. It is a perspective view of the state which installed the desk with two raising / lowering top boards adjacent to the side, and raised the top board of one desk. It is a perspective view of a duct cover. It is a fragmentary perspective view of the state where the duct cover was closed. It is a longitudinal cross-sectional view of the state of FIG. It is a fragmentary perspective view in the state where a duct cover was opened. It is a longitudinal cross-sectional view of the state of FIG. It is a fragmentary perspective view of the state which removed the decorative cover. It is a disassembled perspective view of a decorative cover. It is a fragmentary perspective view which shows the edge 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 an elevating top plate according to the present invention, and FIGS. 2 to 8 show the details thereof, in which 1 is a leg, 2 is a top plate, 3 is a beam, 4 is a support rod, A 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 a desk with a lifting table according to the present invention makes it possible to adjust the height of the table 2 supported by the upper ends of the legs 1 and 1 arranged on both sides. A desk A with an elevating and lowering top plate, in which a predetermined space is provided between the top plate 2 and the top plate 2 at the back of the lower surface of the top plate 2, and the rear portion of the duct cover 5 is vertically supported by a horizontal support shaft 6. The duct cover 5 is held in a substantially horizontal state by a detachable holding means 7, and the duct cover 5 is formed between the lower surface 8 of the top plate 2 and the duct cover with the duct cover 5 opened. The angle is set to be smaller than 90 °.

  Here, as shown in FIG. 2, the leg 1 has a structure in which the movable leg 10 is supported so as to be movable up and down with respect to the fixed leg 9, and the movable legs 10, 10 of the legs 1, 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 center portions of the support rods 4, 4 extending in the front-rear direction are fixed to both sides of the beam 3. The top plate 2 is mounted on the upper surface of 4.

  As shown in FIGS. 7 and 8, in the present invention, the angle formed between the lower surface 8 of the top plate 2 and the duct cover 5 is maintained at an angle of 45 ° to 70 ° with the duct cover 5 opened. Further, at the rear end of the duct cover 5, restricting portions 11 and 11 that abut against the lower surface 8 of the top plate 2 are provided. The angle formed between the lower surface 8 of the top plate 2 and the duct cover 5 is particularly preferably 60 °.

  The rear side of the duct cover 5 is attached to the support rods 4 and 4 on both support rods 4 and 4 so as to be vertically rotatable on the support rods 4 and 4, and the front end portion of the duct cover 5. Further, a locking tool is provided as a holding means 7 that can be engaged and disengaged with respect to the beam 3 held by the duct cover 5 in a substantially horizontal state. Here, as the holding means 7, one using a magnet or various structures can be adopted, and the position where the magnet is provided is not particularly limited. Hereinafter, the embodiment will be described by using a hook-shaped locking tool 7 as an example of the holding means 7.

  Specifically, as shown in FIGS. 2 and 4, the duct cover 5 includes side plates 13 and 13 that are rotatably supported by the support shafts 6 and 6 at both rear portions of the support plate 12. The locking device 7 having a hook structure having a rising plate 14 at a front edge, and the supporting plate 12 provided on both sides of the rising plate 14 in a substantially horizontal state with the lower surface 15 of the beam 3. 7 is removably engaged with the rear surface 16 of the beam 3, and a restricting portion 11 is formed at the rear end of the side plate 13 to hold the duct cover 5 at a predetermined angle. In addition, 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 beam from the duct space formed by the duct cover 5. 3 can be wired in the groove 24 through a 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, and at least the front and rear end parts of the grounding leg 17 in the plan view. It protrudes to the side from the side edge 18 of the top plate 2, and the side protrusions are contact parts 19, 19. Specifically, as shown in FIGS. 1 and 2, the fixed leg 9 of the leg 1 fixes the front and rear central portions of the grounding leg 17 extending in the front-rear direction to the lower end of the cylindrical outer tube 20. The movable leg 10 is constituted by a single or a plurality of cylindrical members provided inside the outer cylinder 20 to form an extendable continuous cylinder. In the present embodiment, the inner cylinder 21 and the intermediate cylinder 22 are provided coaxially inside the outer cylinder 20 to constitute an extendable continuous cylinder.

  FIG. 3 shows a state in which two desks A and B with an elevation board according to the present invention are installed adjacent to each other in the lateral direction. 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 lifting and lowering boards installed adjacent to each other are abutted at the front and rear portions and installed in the closest state However, since a gap is formed between the side edges 18 and 18 of the adjacent top plates 2 and 2, even if the top plate 2 of the desk A with one lift table is raised or lowered, the other desk with the lift table It moves up and down without being interfered by the B top plate 2. Here, the contact portion 19 is preferably formed of an elastic material such as rubber having a large contact frictional resistance.

  The mechanism for moving the movable leg 10 up and down with respect to the fixed leg 9 is stored in the telescopic continuous tube in association with the above-described telescopic tube. 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. The elevating mechanism portion configured by the above-described telescopic continuous cylinder and the feed screw mechanism provided inside the outer cylinder 20 is stored. And the said attachment body 23 is attached in the both ends of the upward open beam 3 extended in the horizontal direction, The center part of the support rods 4 and 4 extended in the front-back direction is being fixed to the both sides of this beam 3, The top plate 2 is placed on the upper surface of the beam 3 and the support rods 4 and 4 and attached by screwing from below.

  Further, an electronic control device 25 for controlling the drive motor is incorporated in the concave groove 24 of the beam 3, and an operation switch 26 of the electronic control device 25 is set as shown in FIGS. The wiring is connected from the inside of the support rod 4 to the electronic control device 25 through the concave groove 24 of the beam 3. 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 portion of the top plate 2, wiring function portions 28, 28 are provided in relation to a wiring duct device comprising a duct cover 5 provided below the top plate 2. The wiring function unit 28 is provided with a wiring cover 30 having a function for inserting wiring inside an opening 29 formed through the top plate 2 so as to penetrate vertically, and an outlet 31 having various connection terminals. Or provide.

  Further, it is necessary to supply electric power from the wiring duct device through the concave groove 24 of the beam 3 to the electronic control device 25 and the drive motor, or to wire a LAN cable for communication. Therefore, as shown in FIG. 5 to FIG. 8, the cords drawn from the floor surface such as the access floor are attached to the back surface portion of the fixed leg 9 of the leg body 1, and the rear end of the top plate 2 leaving the upper end. A rising wiring duct 32 attached to the lower surface 8 is provided. The start-up wiring duct 32 is formed by sewing a flat core material made of a synthetic resin into a part of a cylindrical bag with a fastener, or by heat-welding or adhering the cord to the core material. The structure is such that the zipper is closed and held inside while keeping along. Although the top plate 2 moves up and down, in this embodiment, the height of the top surface of the top plate 2 is 1250 mm when it is most raised, and the height of the top surface of the top plate 2 is 650 mm when it is most lowered. A surplus portion 33 capable of absorbing the height is provided in the upper portion of the rising wiring duct 32. Here, the rising wiring duct 32 is deformed when the top plate 2 is raised and lowered, but the deformation direction is constrained by the action of the above-mentioned core material, and the surplus portion 33 is the rear end of the top plate 2 even in the lowest position. It is designed not to protrude backwards.

  Further, as shown in FIGS. 1 and 5 to 8, a back panel 34 and side panels 35, 35 are respectively provided on the lower surface of the top plate 2 with L brackets 36,. It is installed. Here, the back panel 34 and the side panel 35 are provided with sufficient vertical dimensions below the top plate 2, and even when the top plate 2 is raised to the maximum height, the adjacent top plate 2 is The back panel 34 and the side panel 35 at the lowest height are set to overlap each other. And it sets so that a clearance gap may be ensured also between the side panels 35 and 35 provided in the top plates 2 and 2 of the desks A and B with an adjacent elevating top plate.

  Further, the support plate 12 of the duct cover 5 has a plurality of elongated holes 37 formed vertically and horizontally, and the elongated holes 37 are used to connect wiring devices such as table taps and transformers with a binding band. Hold. Further, since the duct cover 5 is made of a steel plate, it is also possible to attract and hold the wiring device using a magnet.

  As shown in FIGS. 5 and 6, the duct cover 5 is excellent in appearance because the lower surface 15 of the beam 3 and the support plate 12 are supported substantially in a horizontal state in a closed state. It becomes a thing and does not get in the way at all. As shown in FIGS. 7 and 8, when the duct cover 5 is opened, the support plate 12 faces substantially in front when the lower side of the top plate 2 is looked into from the obliquely upward direction. Since the upright plate 14 serves as a receiving portion, wiring work is easy, and even if the cords become heavy, the restricting portions 11 and 11 are in contact with the lower surface 8 of the top plate 2 so as to restrict rotation. Open posture is stable.

  As shown in FIG. 5, an attachment body 23 that supports the leg 1 is attached to the end of the beam 3. However, since the concave groove 24 of the beam 3 is set slightly deep, In view of the above, in order to eliminate the risk of a finger being caught 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 portion including the lower surface 15 is cut away. ing. In order to conceal the notch 39 at the end of the beam 3 and the mounting body 23, a decorative cover 38 made of synthetic resin is attached.

  A 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 substantially L-shaped member that can cover the notch 39 and the end surface of the beam 3, and has a circular opening 40 that receives the inner leg 21 of the leg 1, The diameter 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 is butt-joined to each other.

  The inner cover 41 has an inclined portion 44 whose end portion is bent downward and extends from a horizontal portion 43 covering the bottom surface side, and a semicircular hole forming the opening 40 at an 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 locking claws 46,... Made of triangular dowels are formed outside the engaging pieces 45, 45, and At the end edge of the horizontal portion 43, an engagement step portion 47 is formed to engage with the lower side of the cutting edge of the lower surface 15 corresponding to the notch portion 39. On the other hand, the outer cover 42 is substantially L-shaped when viewed from the front, and 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. A semicircular hole 40B is formed, and engaging pieces 50, 50 extending downward are formed at both ends, and a plurality of locking claws 51,... Made of triangular dowels are provided outside the engaging pieces 50, 50. Further, on both sides in the vicinity of the corner portion of the horizontal portion 48, reinforcing pieces 52, 52 are continuously extended from the inner surface of the vertical portion 49, and a protrusion 53 is formed on the inner lower end of the reinforcing piece 52. It is the formed shape.

  Further, as shown in FIG. 9, the beam 3 forms a concave groove 24 having a substantially U-shaped cross section including a lower surface 15, a rear surface 16, and a front surface 54. 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. A reinforcing member 55 for fixing the attachment body 23 is welded and fixed to the rear surface 16 and the front surface 54 at the end of the beam 3. The reinforcing member 55 is a member having a substantially U-shaped cross section that opens downward, and is formed by bending drooping plates 57 and 57 downward from both sides of the upper surface plate 56, and the upper surface plate 56 is formed on the upper surface of the beam 3. The two hanging plates 57, 57 are integrated with the rear surface 16 and the inner surface of the front surface 54 and integrated by spot welding. In addition, the hanging plates 57, 57 of the reinforcing member 55 are provided with horizontally elongated holes 58, which simultaneously receive and engage the locking claws 46, ... of the inner cover 41 and the locking claws 51, ... of the outer cover 42, respectively. 58, and engaging recesses 59 and 59 for receiving the reinforcing pieces 52 and 52 of the outer cover 42 and engaging the protrusions 53 and 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 notch portion 39, and both engaging pieces are engaged. 45 and 45 are inserted inside the hanging plates 57 and 57 of the reinforcing member 55, and the locking claws 46 are fixedly engaged with the horizontally long holes 58 and 58, respectively. Then, the two hanging plates 57 of the reinforcing member 55 are slidably engaged with the engaging recesses 59, 59 of the reinforcing member 55 from below. , 57 is inserted into the inside of the elongated holes 58, 58 to engage with the locking claws 51,. 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.

  In addition, it is also preferable that an instruction manual of the desk with the liftable 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 a built-in item (instruction manual) on the surface of the vertical portion 49 of the outer cover 42 of the decorative cover 38.

A, B Desk with lifting table,
1 leg, 2 top plate,
3 beam, 4 support rod,
5 Duct cover, 6 Support shaft,
7 Locking tool (holding means), 7A Claw part,
8 bottom surface, 9 fixed legs,
10 movable legs, 11 regulating sections,
12 support plates, 13 side plates,
14 Rising plate, 15 Lower surface,
16 rear surface, 17 grounding leg,
18 side edge, 19 contact part,
20 outer cylinder, 21 inner cylinder,
22 intermediate cylinder, 23 mounting body,
24 concave groove, 25 electronic control device,
26 Operation switch, 27 Cover,
28 wiring function part, 29 opening,
30 Wiring cover, 31 Outlet,
32 startup wiring duct, 33 surplus part,
34 Back panel, 35 Side panel,
36 L metal fittings, 37 long holes,
38 cosmetic cover, 39 cutout,
40 opening, 40A semicircular hole,
40B semicircular hole, 41 inner cover,
42 outer cover, 43 horizontal section,
44 slope part, 45 engagement piece,
46 latching claw, 47 engaging step,
48 horizontal parts, 49 vertical parts,
50 engaging pieces, 51 locking claws,
52 reinforcing pieces, 53 protrusions,
54 front surface, 55 reinforcing member,
56 top plate, 57 hanging plate,
58 laterally long holes, 59 engaging recesses.

Claims (1)

  A desk with an elevating top plate that has a structure in which the legs arranged on both sides are supported so that the movable legs can be moved up and down with respect to the fixed legs, 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 top plate on the lower surface of the top plate, and the rear portion of the duct cover is mounted on a horizontal support shaft so that the front portion can be rotated in the vertical direction. The lifting / lowering ceiling is characterized in that it is held in a substantially horizontal state by a removable holding means, and the angle between the lower surface of the top plate and the duct cover is set to an angle smaller than 90 ° with the duct cover opened. Wiring duct device for desks with plates.

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