JP2019048159A - Wiring duct device of desk with liftable top plate - Google Patents

Abstract

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 lift-top board desk, and more particularly to a wiring duct device for a lift-top board desk provided with a wiring duct at the rear of the lower surface of the lift top board.

  Conventionally, the legs arranged on both sides are structured such that the lower part of the movable leg is vertically movably supported inside the fixed leg, and a drive mechanism is provided between the fixed leg and the movable leg to elevate the movable leg There are various kinds of desk apparatus with a lifting and lowering top plate which can adjust the height of the top plate attached to the upper end of the movable leg.

  For example, in Patent Document 1, the legs arranged on both sides have a structure in which the lower part of the movable leg is vertically movably supported inside the fixed leg, and a driving mechanism is provided in association with the fixed leg and the movable leg. The movable leg can be moved up and down, and 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 apparatus with a lift 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 provided with a hinge portion that can be bent in the vertical direction near the rear end, and a closing piece that can be elastically deformed in the front and rear direction at the rear end. The upper end of the closing piece is provided at an upper end of a curtain plate which is erected so as to have an end portion rearward of the hinge portion in the duct unit erected upward and spaced apart from the rear end lower surface of the top plate by a required dimension. The wire duct structure in a desk or the like is characterized in that the fastening piece is fixed so as to be in contact with or close to the lower surface of the top plate and the locking piece is detachably engaged with the reinforcing member below the top plate. It is done.

  However, the wiring duct device described in Patent Document 1 is 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 provided, the wiring work is carried under the top plate and forced into a tight posture, requiring a great deal of labor. Further, in the wiring duct structure in a desk or the like described in Patent Document 2, when the engagement piece on the upper surface of the front end portion of the support substrate and the reinforcement member below the top plate are disengaged, the support substrate is lower centering on the hinge portion. Since the cable can be easily stored in the duct from the front of a desk or the like because it rotates and inclines in the opposite direction, the supporting substrate is inclined downward by the elastic hinge portion, so In the case of supporting heavy cords, the inclination angle is increased, and the cords may be dropped during wiring work.

Patent No. 4779712 gazette Japanese Utility Model Publication 7-981

  Therefore, in view of the above-described situation, the present invention has a structure in which the legs disposed on both sides are supported by the fixed legs so as to move the movable legs vertically and supported by the upper ends of the both movable legs. In a desk apparatus with a lift and a top plate capable of adjusting the height of the top plate, the desk with the lift and the top plate can easily perform wiring work to a wiring duct provided at the rear of the lower surface of the top in an easy posture. The point is to provide a wiring duct device.

  In order to solve the above-mentioned problems, the present invention constitutes a wiring duct device of a desk with a lift top plate shown below.

(1)
A desk with a lifting and lowering board which has a structure in which the legs arranged on both sides are supported so that the movable legs can move up and down with respect to the fixed legs and the height of the top supported by the upper ends of both movable legs can be adjusted A predetermined space is provided between the lower surface of the top plate and the top plate, and the rear portion of the duct cover is rotatably mounted in the vertical direction by a horizontal support shaft, and the duct cover is engaged Lifted holding means characterized in that it is held in a substantially horizontal state by removable holding means, and in the state where the duct cover is opened, the angle formed between the lower surface of the top plate and the duct cover is smaller than 90 °. Wiring duct device for desk with board.

(2)
A restricting portion which abuts against the lower surface of the top plate at the rear end of the duct cover so that the angle formed by the lower surface of the top plate and the duct cover is 45 ° to 70 ° in a state where the duct cover is opened The wiring duct apparatus of the desk with a lifting and lowering top plate as described in (1).

(3)
The ends of the laterally extending beam are attached to the upper ends of the movable legs of the legs on both sides, and the central portion of the longitudinally extending supporting rod is fixed to both sides of the beam, and the beam and the support are supported The top plate is mounted and mounted on the upper surface of the crucible, and both rear ends of the duct cover are rotatably mounted on the rear side of the beam with support shafts horizontal to both support rods, and the duct cover The wiring duct device for a lift-and-lift desk with desk according to (1) or (2) according to (1) or (2), further comprising: a holding means capable of engaging and disengaging with the beam.

(4)
The duct cover has side plates pivotally supported by the support shafts at both rear ends 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. Locking members as the holding means provided on both sides of the rising plate are engaged with the rear surface of the beam in a substantially horizontal state so as to be able to be engaged and disengaged, and the duct cover is set at a predetermined angle at the rear end of the side plate. (3) The wiring duct device for a desk with a lift and a ceiling plate according to (3), wherein the restriction portion for holding is formed.

  The wiring duct device for a desk with a lift top plate of the present invention as described above has the following effects.

  According to the configuration of (1), since 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, the wiring work to the wiring duct which is performed below the top plate Since the duct cover is held at a certain angle even when the cords are supported on the wiring duct, it does not fall off or slip off. Moreover, since the duct cover was provided in the lower surface rear part of the top plate, the front part under the top plate can be widely used.

  According to the configuration of (2), the duct cover can be reliably held in an inclined state, there is no fear that the duct cover moves during wiring work and the cords fall off, and the duct cover is 45 ° to 70 ° Since it opens at an inclination angle of °, wiring work becomes easy from the front side.

  According to the configuration of (3), the duct cover can be attached using the beam supporting the top plate and both supporting rods to secure a sufficient duct space, and from the front side when the duct cover is closed It becomes inconspicuous and has excellent appearance.

  According to the configuration of (4), although having a simple structure, it has rigidity, and when the duct cover is opened to be in an inclined state, the rising plate becomes a receiving portion and wiring of cords and the like Work becomes easy.

It is a perspective view showing a desk with a lift top board concerning the present invention. Similarly it is an exploded perspective view of a desk with a lift top plate. It is a perspective view in the state where two desks with a lift top board were installed adjacent to the side, and the top board of one desk was raised. It is a perspective view of a duct cover. It is a fragmentary perspective view in the state where a 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 the duct cover was opened. It is a longitudinal cross-sectional view of the state of FIG. It is a partial perspective view of a state where a makeup cover was removed. It is an exploded perspective view of a makeup 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 attached drawings. FIG. 1 shows a desk with a lift top plate according to the present invention, and FIGS. 2 to 8 show the details thereof, in which reference numeral 1 is a leg, 2 is a top plate, 3 is a beam, 4 is a support rod, 5 is a support A duct cover, 6 indicates a support shaft, and 7 indicates a locking tool.

  The wiring duct device of the lift top board desk according to the present invention, as shown in FIG. 1 and FIG. 2, makes it possible to adjust the height of the top board 2 supported by the upper ends of the legs 1, 1 arranged on both sides. A desk A with a lift top plate, and a predetermined space is provided between the bottom plate 2 and the top plate 2 at the rear of the lower surface of the top plate 2 so that the rear portion of the duct cover 5 is vertically supported by the horizontal support shaft 6 And the duct cover 5 is held in a substantially horizontal state by the detachable holding means 7 and the bottom surface 8 of the top plate 2 and the duct cover are in a state in which the duct cover 5 is opened. It is characterized in that the angle is set to an angle smaller than 90 °.

  Here, as shown in FIG. 2, the leg 1 has a structure in which the movable leg 10 is supported movably up and down with respect to the fixed leg 9, and the movable legs 10 and 10 of the legs 1 and 1 on both sides are At the upper end, both ends of the laterally extending beam 3 are attached, and to the both sides of the beam 3, the central portions of the longitudinally extending supporting rods 4, 4 are fixed. The top plate 2 is mounted on and attached to the upper surface of the upper cover 4.

  In the present invention, as shown in FIG. 7 and FIG. 8, the angle formed by the lower surface 8 of the top plate 2 and the duct cover 5 is maintained at an angle of 45.degree. At the rear end of the duct cover 5, there are provided regulating portions 11 and 11 which abut on the lower surface 8 of the top plate 2. It is particularly preferable that the angle between the lower surface 8 of the top plate 2 and the duct cover 5 be 60 °.

  Further, on the rear side of the beam 3, both side rear portions of the duct cover 5 are mounted so as to be vertically pivotable by supporting shafts 6 and 6 horizontal to both support rods 4 and 4, and a front end portion of the duct cover 5 Further, a locking tool as holding means 7 which can be engaged with and detached from the beam 3 which holds the duct cover 5 in a substantially horizontal state is provided. Here, as the holding means 7, one using a magnet or various structures can be adopted, and the position where it is provided is not particularly limited. In the following, the embodiment will be described using the hook 7 as an example of the holding means 7.

  Specifically, as shown in FIG. 2 and FIG. 4, the duct cover 5 has side plates 13, 13 rotatably supported by the support shafts 6, 6 at both rear ends of the support plate 12, The locking tool 7 having a wedge structure provided with a rising plate 14 at the front edge and provided on both sides of the rising plate 14 in a substantially horizontal state substantially flush with the lower surface 15 of the beam 3 with the support plate 12; A restricting portion 11 is formed on the rear end of the side plate 13 for retaining the duct cover 5 at a predetermined angle. In the rear surface 16 of the beam 3, an engagement hole is formed 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, and the rising plate 14 and the rear surface 16 of the beam 3 are positioned close to each other, and the duct space is formed by the duct cover 5. It is possible to wire in the recessed groove 24 through the cord insertion hole formed in the rear face 16 of the third.

  More specifically, as shown in FIGS. 1 to 3 and 5, the fixed leg 9 is provided with a ground contact leg 17 extending in the front and rear direction at the lower end, and at least the front and rear end portions of the ground leg 17 are planarly viewed in plan view. The side projection 18 projects laterally from the side edge 18 of the top plate 2, and the side projections form contact portions 19, 19. Specifically, as shown in FIG. 1 and FIG. 2, the fixed leg 9 of the leg 1 fixes the front and rear central portion of the ground contact leg 17 extended in the front and rear direction to the lower end of the cylindrical outer cylinder 20. The movable leg 10 is configured of an extendable continuous cylinder by a single or a plurality of cylindrical members provided inside the outer cylinder 20. In the present embodiment, two of the inner cylinder 21 and the intermediate cylinder 22 are coaxially provided inside the outer cylinder 20 to constitute a telescopic continuous cylinder.

  FIG. 3 shows a state in which the two desks A and B with the lift top plate according to the present invention are installed adjacent to each other in the lateral direction. When the contact parts 19, 19 provided on the fixed legs 9, 9 of the legs 1, 1 of the desks A, B installed adjacent to each other are in contact with each other in the front and back parts 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 lifting top plate is raised or lowered, the desk with the other lifting top plate The lifting and lowering operation is performed without being interfered with the top plate 2 of B. Here, it is desirable that the contact portion 19 be 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 interior by associating the above-described telescopic connecting cylinder. At the upper end of the inner cylinder 21, as shown in FIG. 2, a mounting body 23 is fixed, and a driving motor such as a servomotor or stepping motor capable of controlling the number of rotations is built in the inside of the mounting body 23. The elevating mechanism section configured of the above-described telescopic connecting cylinder and the feed screw mechanism provided inside the outer cylinder 20 is stored. Then, the mounting body 23 is mounted in both ends of the beam 3 extending upward in the lateral direction, and the central portions of the supporting rods 4 4 extending in the front and rear direction are fixed to both sides of the beam 3, The top plate 2 is placed on the upper surface of the beam 3 and the support rods 4 and 4 and screwed from below.

  Further, an electronic control unit 25 for controlling a drive motor is incorporated in the inside of the concave groove 24 of the beam 3 and the operation switch 26 of the electronic control unit 25 is one as shown in FIG. 1, FIG. 5 and FIG. The 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 whole support rod 4 with a synthetic resin cover 27.

  Further, on both sides of the rear portion of the top plate 2, wiring function parts 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 with a function for inserting a wiring inside an opening 29 formed by penetrating the top plate 2 vertically and vertically, or a socket 31 provided with various connection terminals. Set up.

  Further, it is necessary to supply power from the wiring duct device to the electronic control unit 25 and the drive motor through the inside of the concave groove 24 of the beam 3 or to wire a LAN cable for communication. Therefore, as shown in FIG. 5 to FIG. 8, the cords pulled out from the floor surface such as the access floor are attached to the back surface of the fixed leg 9 of the leg 1, leaving the upper end and the rear end of the top 2 A start-up wiring duct 32 attached to the lower surface 8 is provided. The start-up wiring duct 32 is formed by sewing, heat-sealing or adhering and fixing a flat core material made of synthetic resin to a part of a tubular bag with a fastener, and cords and the like The structure is such that the fastener is closed and held inside while keeping the Although the top 2 moves up and down, in the present embodiment, the height of the top of the top 2 is 1250 mm when it is the highest, and the height of the top of the top 2 is 650 mm when it is the lowest. An excess portion 33 capable of absorbing the height is provided at the top of the start-up wiring duct 32. Here, the raising wiring duct 32 is deformed when the top plate 2 is moved up and down, but the direction of deformation is restrained by the action of the core material described above, and the surplus portion 33 is the rear end of the top plate 2 even in the most lowered state. It does not project backward more than that.

  Further, as shown in FIG. 1 and FIGS. 5 to 8, the back panel 34 and the side panels 35 and 35 are respectively provided on the lower surface of the top plate 2 with L fittings 36,. It is attached. Here, the back panel 34 and the side panel 35 have sufficient vertical dimensions also 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. Further, it is set such that a gap is secured also between the side panels 35 and 35 provided on the top plates 2 and 2 of the desks A and B with lift top plates adjacent to each other.

  Furthermore, in the support plate 12 of the duct cover 5, a plurality of long holes 37, ... are formed in a matrix in the longitudinal and lateral directions, and using the long holes 37, wiring devices such as table taps and transformers can be connected with binding bands. Hold. Further, since the duct cover 5 is made of a steel plate, it is also possible to adsorb 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 flush and in a substantially horizontal state in the closed state. It's a thing and never gets in the way. Further, as shown in FIGS. 7 and 8, when the duct cover 5 is in the open state, the support plate 12 faces substantially in front when the lower side of the top plate 2 is viewed obliquely from above. Since the rising plate 14 serves as the receiving portion, the wiring operation is easy, and even if the cords become heavy, the restricting portions 11, 11 are in contact with the lower surface 8 of the top plate 2 to restrict rotation. , Open attitude is stable.

  As shown in FIG. 5, a mounting body 23 for supporting the leg 1 is attached to the end of the beam 3, but the concave groove 24 of the beam 3 is set a little deeper In order to eliminate the risk of pinching a finger between the upper end of the outer cylinder 20 and the middle cylinder 22 of the leg 1 and the lower surface 15 of the beam 3, the lower surface including the lower surface 15 is cut away. ing. In order to conceal the notches 39 at the end of the beam 3 and the mounting body 23, a cosmetic cover 38 made of synthetic resin is attached.

  The attachment structure of the cosmetic cover 38 and the end of the beam 3 will be described with reference to FIGS. 5 and 9 to 11. The cosmetic cover 38 is a substantially L-shaped member in front view that can cover the notch 39 and the end face of the beam 3, and has a circular opening 40 for receiving the inner leg 21 of the leg 1, It is divided into right and left at the diameter portion of the opening 40. That is, as shown in FIG. 10, the cosmetic cover 38 is composed of an inner cover 41 which covers the bottom side and an outer cover 42 which covers the side and bottom sides, and is butt-joined to each other.

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

  Further, as shown in FIG. 9, the beam 3 has a U-shaped concave groove 24 formed of a lower surface 15, a rear surface 16 and a front surface 54. The notch 39 is formed by cutting 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 fixed by welding to the rear surface 16 and the front surface 54. The reinforcing member 55 is a member having a substantially U-shaped cross section opened downward, and is formed by bending the hanging plates 57 57 downward from both sides of the upper surface plate 56, and the upper surface plate 56 is the upper surface of the beam 3. In the state where both of the hanging plates 57, 57 are joined to the inner surface of the rear surface 16 and the front surface 54, they are integrated by spot welding. Laterally 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, on both of the depending plates 57, 57 of the reinforcing member 55, While forming 58, the reinforcement pieces 52 and 52 of the said outer cover 42 are received, and the engagement recessed parts 59 and 59 which engage the said protrusion 53 and 53 are formed.

  In order to attach the cosmetic cover 38 to the end of the beam 3, first, the engagement step 47 of the inner cover 41 is engaged below the edge of the lower surface 15 of the notch 39 and both engagement pieces By inserting 45, 45 into the inside of the both depending plates 57, 57 of the reinforcing member 55, the locking claws 46,. Then, while the two reinforcing pieces 52, 52 of the outer cover 42 are slidingly engaged with the engaging recesses 59, 59 of the reinforcing member 55 from below, the two engaging plates 50, 50 both hanging plates 57 of the reinforcing member 55 , 57, and the locking claws 51,... In this state, the semicircular hole 40A and the semicircular hole 40B form a circular opening 40 so as to surround the inner cylinder 21 of the leg 1.

  Moreover, it is also preferable to be able to hold the operation manual of the desk with the lift top plate on the inner surface side of the cosmetic cover 38. Further, it is also preferable to display a logo, a brand name, or a description of an internal component (instruction manual) on the surface of the vertical portion 49 of the outer cover 42 of the cosmetic cover 38.

A, B desk with lift top plate,
1 body, 2 skyboards,
3 beams, 4 support rods,
5 duct cover, 6 spindles,
7 Locking tool (holding means), 7A claw,
8 bottom, 9 fixed legs,
10 movable legs, 11 regulatory units,
12 support plates, 13 side plates,
14 rising plate, 15 lower surface,
16 rear side, 17 ground contact legs,
18 side edges, 19 abutments,
20 outer cylinder, 21 inner cylinder,
22 middle cylinder, 23 mounting body,
24 recessed grooves, 25 electronic control units,
26 operation switches, 27 covers,
28 wiring functions, 29 openings,
30 wiring covers, 31 outlets,
32 start-up wiring ducts, 33 surplus parts,
34 back panel, 35 side panel,
36 L fittings, 37 long holes,
38 cosmetic covers, 39 notches,
40 openings, 40A semi-circular holes,
40B semi-circular hole, 41 inner cover,
42 outer cover, 43 horizontal parts,
44 ramps, 45 engagement pieces,
46 locking claws, 47 engagement steps,
48 horizontal parts, 49 vertical parts,
50 engagement pieces, 51 locking claws,
52 reinforcement pieces, 53 protrusions,
54 front, 55 reinforcements,
56 top plate, 57 hanging plate,
58 horizontal hole, 59 engagement recess.

Claims (4)

  A desk with a lifting and lowering board which has a structure in which the legs arranged on both sides are supported so that the movable legs can move up and down with respect to the fixed legs and the height of the top supported by the upper ends of both movable legs can be adjusted A predetermined space is provided between the lower surface of the top plate and the top plate, and the rear portion of the duct cover is rotatably mounted in the vertical direction by a horizontal support shaft, and the duct cover is engaged Lifted holding means characterized in that it is held in a substantially horizontal state by removable holding means, and in the state where the duct cover is opened, the angle formed between the lower surface of the top plate and the duct cover is smaller than 90 °. Wiring duct device for desk with board.   A restricting portion which abuts against the lower surface of the top plate at the rear end of the duct cover so that the angle formed by the lower surface of the top plate and the duct cover is 45 ° to 70 ° in a state where the duct cover is opened The wiring duct device of a desk with a lift top plate according to claim 1, wherein   The ends of the laterally extending beam are attached to the upper ends of the movable legs of the legs on both sides, and the central portion of the longitudinally extending supporting rod is fixed to both sides of the beam, and the beam and the support are supported The top plate is mounted and mounted on the upper surface of the crucible, and both rear ends of the duct cover are rotatably mounted on the rear side of the beam with support shafts horizontal to both support rods, and the duct cover 3. The wiring duct device for a lift-top-equipped desk according to claim 1 or 2, further comprising a holding means which can be attached to and detached from the beam which holds the duct cover in a substantially horizontal state.   The duct cover has side plates pivotally supported by the support shafts at both rear ends 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. Locking members as the holding means provided on both sides of the rising plate are engaged with the rear surface of the beam in a substantially horizontal state so as to be able to be engaged and disengaged, and the duct cover is made at a predetermined angle at the rear end of the side plate The wiring duct device for a desk with a lift and a ceiling plate according to claim 3, wherein a restriction portion for holding is formed.

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