JP2008079771A - Desk apparatus with elevating and lowering top plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a desk apparatus with an elevating and lowering top plate provided with a leg body, wherein design change when changing a size or specifications is easy, appearance is excellent and the degree of freedom in terms of design is high while securing the accuracy of elevating and lowering guide of a movable leg to a fixed leg by making a member constituting the outer surface of the fixed leg, a slide mechanism for vertically movably guiding the movable leg and a driving mechanism be respectively independent. <P>SOLUTION: The fixed leg 4 has a leg cover 6 having a flat box structure which constitutes an outer surface and is opened upwards, and a guide unit 7 provided inside the leg cover for vertically slidably guiding the movable leg 5. The guide unit is in a rectangular frame structure in which upper ends of a pair of vertical guide rods 20 disposed on both front and back sides are connected by an upper connecting member 21 and lower parts are connected by a lower connecting member 22. In the state of holding the movable leg between both vertical guide rods, the guide unit is attached inside the leg cover. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a desk device with a lifting plate.

  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, in Patent Document 1, a movable leg is supported in a fixed leg by a guide roller so as to be movable up and down, and a rear part of the top plate is supported by the movable leg in a cantilever manner. The structure which raises / lowers a movable leg with the drive mechanism by meshing | engagement with the rack provided in this and the pinion provided in the fixed leg is disclosed. Here, the fixed leg has an L-shape in a side view in which a leg plate portion is erected on the rear portion of the lower support member that contacts the floor surface. Since the movable leg is provided in the leg plate portion so as to be movable up and down, the lateral width of the movable leg is narrower than the leg plate portion in a side view, and the front and rear of the movable leg are normally open.

  In Patent Document 2, leg insertion holes are provided vertically in the left and right sleeve legs of the desk body, and the leg unit has a substantially C-shaped cross section in the same manner as the support legs having a substantially C-shaped cross section. The lifting leg is inserted so as to be able to move up and down, and a pinion provided inside the supporting leg so as to be pivotable at a fixed position is engaged with a vertical rack provided inside the lifting leg, and the leg is inserted. Fit the legs of the leg unit into the holes from above, and attach both sides of the top plate to the upper end of the lifting legs, connect the pinions on both sides with shafts, and rotate the rotating shaft crossing the shafts. There is disclosed a structure in which a top plate is moved up and down by being interlocked by a worm and a worm gear and rotated by a handle attached to the rotation shaft.

  In addition, as described in Patent Documents 3 and 4, as a driving mechanism for moving the movable leg up and down with respect to the fixed leg, a screw shaft is suspended inside the movable leg so as to be rotatable at a fixed position and fixed. A mechanism for raising and lowering the movable leg with respect to the fixed leg by screwing the screw shaft into a nut member provided inside the leg and rotating the screw shafts on both sides synchronously is known. However, the conventional drive mechanism is integrated into the fixed leg and the movable leg, both mechanically and structurally. When changing the size and specifications, the entire structure of the leg, including the drive mechanism, is included. Had to be redesigned. Conventionally, since the fixed leg directly forms the outer surface of the leg body, it has been manufactured by sheet metal processing with a shape and structure that emphasizes the appearance, but in a slide mechanism that guides the movable leg so that it can move up and down. In addition, due to the introduced clearance, manufacturing and assembly errors, there is a problem that the backlash increases and the top plate is not stable.

Also, since the outside surface of the desk leg and the side edge of the top plate are usually set to be the same vertical surface, multiple desks with elevating top plates are installed side by side. When a desk with a lifting table is placed next to a desk with a fixed top plate, if the legs of adjacent desks are installed in close contact with each other, the edges of the top plate interfere with each other so that they can be raised and lowered smoothly. Since it is not possible, it is necessary to install it with a gap between the legs. However, even if it is installed in such a state, the desk may move and the top plates may come into contact with each other, and in this case, the top plate cannot be raised and lowered smoothly. Here, it is considered to set the elevating table so as to be positioned on the inner side of the leg body, but it is not preferable that the leg body projects laterally in terms of appearance.
Japanese Utility Model Publication No. 57-113042 Japanese Utility Model Publication No. 62-19233 Japanese Utility Model Publication No. 61-3369 Japanese Patent No. 3669232

  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 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. A desk mechanism with a lifting / lowering top plate that is capable of moving the movable leg up and down and adjusting the height of the top plate attached to the upper end of the movable leg. Design when changing the size and specifications while ensuring the accuracy of moving guide of the movable leg relative to the fixed leg by making the component, the slide mechanism that guides the movable leg up and down, and the drive mechanism independent of each other An object of the present invention is to provide a desk device with an elevating top plate that is easy to change, has an excellent appearance, and has legs with high design freedom.

  In order to solve the aforementioned problems, the present invention 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 associated with the fixed leg and the movable leg. A desk device with a lifting / lowering top plate that can adjust the height of the top plate attached to the upper end of the movable leg, wherein the fixed leg has an upper opening that constitutes an outer surface And a guide unit provided inside the leg cover for guiding the movable leg so as to be slidable up and down. A rectangular frame structure in which the upper ends of the heels are connected by an upper connecting member and the lower portions are connected by a lower connecting member, and the guide is provided in the leg cover in a state where the movable leg is held between both vertical guide ridges. That the unit is installed. Configured the elevator ceiling plate with desk apparatus as symptoms (claim 1).

  Here, both vertical guide rods of the guide unit are formed of an aluminum extrusion mold material, and have a rail groove having a substantially U-shaped cross section on one side along the longitudinal direction, and a synthetic resin is formed at the upper end of the rail groove. A synthetic resin lower slider is fitted to the lower leg end face of the movable leg, and the movable leg is held on the guide unit so as to be slidable up and down via the vertical slider. (Claim 2).

  Further, a lower reinforcing member for attaching a rear portion of the lower support member is fixed to the lower end of the leg cover, the guide unit is dropped and fitted from an upper opening of the leg cover, and the upper connecting member of the guide unit is It is more preferable that the lower connecting member is placed on the lower reinforcing member and screwed from below while being placed on the upper opening edge of the leg cover.

  The telescopic portion extending in the vertical direction of the drive mechanism includes a bearing cylinder having a nut portion at least at an upper end portion and a screw shaft screwed into the bearing cylinder, and the bearing cylinder is disposed inside the movable leg. It is also preferable that the lower end of the guide unit is fixed to the lower connecting member of the guide unit so as not to rotate (Claim 4).

  According to the desk device with an elevating top plate of the invention according to claim 1 as described above, the leg cover that constitutes the outer surface of the fixed leg, the guide unit that guides the movable leg to be movable up and down, and the drive mechanism, respectively. By making it independent, it is easy to change the design when changing the size and specifications while ensuring the accuracy of moving guide of the movable leg with respect to the fixed leg, and it has excellent appearance and high design freedom. It is possible to provide a desk device with an elevating top board provided with legs.

  According to the second aspect of the present invention, the guide unit is configured by connecting the upper connecting member and the lower connecting member to the upper and lower ends of the pair of vertical guide rods formed of the aluminum extrusion mold material. Can be freely changed, and the vertical slider is made of synthetic resin, so the accuracy is high, and the movable leg can be slid up and down via the vertical slider in the guide groove of the vertical guide rod with high shape accuracy. By holding, the accuracy of the raising / lowering guide can be increased, thereby realizing a smooth operation without rattling.

  According to the third aspect, when the guide unit is connected to the leg cover to constitute the fixed leg, the guide unit is inserted from the upper opening of the leg cover in a state where the movable leg is slidably held by the guide unit. Simply drop-fit and place the upper connecting member of the guide unit on the upper opening edge of the leg cover, and simply place the lower connecting member on the lower reinforcing member of the leg cover and screw it from below. And it can be assembled firmly.

  According to the fourth aspect of the present invention, the extending and contracting portion extending in the vertical direction of the drive mechanism includes a bearing cylinder having a nut portion at least at an upper end portion thereof, and a screw shaft screwed into the bearing cylinder. Since the lower end of the movable leg is arranged so as to be non-rotatably fixed to the lower connecting member of the guide unit, the movable leg is held by the guide unit, and the extendable portion of the drive mechanism is It can be housed inside the leg cover of the fixed leg in the state of being placed and incorporated inside the movable leg, making assembly including the drive mechanism extremely simple, and the load including the top plate can be expanded and contracted. It is stable because it is supported by the lower connecting member of the guide unit, the lower reinforcing member and the lower supporting member of the leg cover through the section, and no load is applied to the leg cover body itself, so it is possible to design with emphasis on design. is there.

  Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. FIG. 1 is an overall side view of a desk device with a lifting table according to the present invention, FIG. 2 is a partial perspective view, and FIGS. 3 to 12 show details of each part. 3 is a curtain plate, 4 is a fixed leg, 5 is a movable leg, 6 is a leg cover, 7 is a guide unit, 8 is a lower support member, 9 is an upper support member, and 10 is a decorative member.

  As shown in FIGS. 1 to 4, the desk device with an elevating top plate according to the present invention supports both sides of the top plate 1 with legs 2 and 2 that can be raised and lowered, and on the rear end surfaces of both legs 2 and 2. The curtain plate 3 is attached between the upper end portions. The leg 2 has a structure in which the lower part of the movable leg 5 is supported inside the fixed leg 4 so as to be movable up and down, and a drive mechanism 11 is provided in association with the fixed leg 4 and the movable leg 5 so that the movable leg 5 is attached. The top plate 1 attached to the upper end of the movable leg 5 can be adjusted in height.

  Further, as shown in FIGS. 4 to 7, the fixed leg 4 includes a leg cover 6 constituting an outer surface and a guide unit 7 provided inside the leg cover 6 to guide the movable leg 5 so as to be slidable up and down. The rear portion of the lower support member 8 is fixed to the lower end of the leg cover 6 so as to be substantially L-shaped in side view. As shown in FIGS. 1 and 2, the movable leg 5 is configured such that the rear portion of the upper support member 9 is fixed to be substantially L-shaped when viewed from the side, and is formed on the upper surface of the upper support member 9. The top plate 1 is placed and screwed. Here, the movable leg 5 has a hollow and flat cross-sectional structure made by sheet metal working. Note that the rear ends of the top plate 1, the movable leg 5 and the upper support member 9 are set to be substantially the same vertical plane. A decorative member 10 is attached to the front end of the leg cover 6 of the fixed leg 4. Then, as shown in FIGS. 3 and 4, T-shaped brackets 12 are attached to the rear portions of the upper support members 9 and 9 constituting the legs 2 and 2 on both sides, respectively, and the T-shaped brackets 12 and 12 projecting inwardly. A beam 13 is connected between the two, and the top plate 1 is placed on the upper surface of the beam 13 and fixed with screws, and between the upper ends of the rear end surfaces of the leg covers 6 and 6 constituting the legs 2 and 2. The front surfaces of both ends of the curtain plate 3 are detachably connected.

  More specifically, as shown in FIGS. 4 to 7, the leg cover 6 constituting the fixed leg 4 is manufactured by sheet metal processing, and is formed by the side plates 14 and 14 and the rear plate 15 in a substantially U-shaped cross section. The rear end portions of the side plates 14 and 14 and the rear plate 15 are extended upward to form an extended cover portion 16 having a U-shaped cross section, and the lower end portion of the side plates 14 and 14 is opened downward. A flat box structure in which a U-shaped lower reinforcing member 17 is fixed and a front reinforcing member 18 having a U-shaped cross section opened forward is fixed between the front ends of both side plates 14 and 14 so as to open upward as a whole. It is. Here, since the upper portion of the leg cover 6 has the extension cover portion 16, it has a substantially L-shape when viewed from the side. Note that the height of the upper end of the extension cover portion 16 of the leg cover 6 substantially corresponds to the height of the fixed leg body in the desk having a normal fixed top plate.

  And in the groove | channel of the said lower reinforcement member 17, it screw-fixes in the state which fitted the rear part of the said lower support member 8, and also formed in the front side of the said front reinforcement member 18 with the aluminum extrusion die material. A decorative member 10 is attached to conceal the front reinforcing member 18. The lower end of the decorative member 10 is concavo-convexly engaged with the arcuate portion of the lower support member 8 to be continuous with the raised portion 8A, and the upper end is folded forward with the upper end of the front reinforcing member 18. It is screwed to the bent mounting piece 19.

  Further, the guide unit 7 that constitutes the fixed leg 4 and is inserted from the upper open part of the leg cover 6 and attached to the inside thereof is, as shown in FIGS. The upper connecting members 21 and 20 are connected to each other by an upper connecting member 21 and the lower portions are connected by a lower connecting member 22 to form a vertically long rectangular frame structure. Here, both the vertical guide rods 20, 20 are formed of an aluminum extruded mold having the same cross-sectional shape, and a rail groove 23 having a substantially U-shaped cross section is formed on one side along the longitudinal direction, and hollow on the other side. It has the general shape in which the housing part 24 is formed. Two protrusions 25, 25 are provided on the bottom surface of the rail groove 23 of the vertical guide rod 20, and three pilot holes 26 having a C-shaped cross section for screwing are provided inside the housing portion 24. , ... are formed.

  7 and 8, the upper connecting member 21 includes a connecting member 27 having a substantially U-shaped cross section and a cover member 28 having a front portion protruding forward from the connecting member 27. Mounting holes 29, 29 corresponding to the pilot holes 26, 26 on both sides of the guide rod 20 are formed at both ends of the member 27, and pilot holes 30 are formed closer to the ends between them. Is formed. The cover member 28 is a plate-like member that is disposed on the upper surface of the connecting member 27 and closes the upper open portion of the leg cover 6. Corresponding through holes 32 and 32 are formed, and an opening 33 having the same shape as the opening 31 is formed. Then, both ends of the connecting member 27 are overlapped on the upper ends of the vertical guide rods 20, 20 arranged in parallel on the front and rear sides, and screws 34 are passed through the mounting holes 29 from above and screwed into the lower holes 26. Link. Then, the cover member 28 is placed on the upper surface of the connecting member 27, and the screw 35 is passed through the through hole 32 from above and screwed into the lower hole 30.

  Further, as shown in FIGS. 7 and 8, the lower connecting member 22 is a plate-like member that connects the lower ends of the vertical guide rods 20 and 20, and has an attachment hole 36 formed at the center of both ends. In both cases, through holes 37 and 37 are formed on both sides of the mounting hole 36 so as to correspond to the pilot holes 26 and 26 on both sides, and a long hole 38 for mounting the drive mechanism 11 described later is further formed on the front side. ing. Then, both end portions of the lower connecting member 22 are overlapped with the lower end surfaces of the vertical guide rods 20, 20, and screws 34 are passed through the central mounting hole 36 from below and screwed into the central lower hole 26.

  Then, when the lower part of the movable leg 5 is assembled to the guide unit 7 so as to be slidable up and down, the upper ladders 39 and 39 made of synthetic resin and the lower sliders 40 and 40 are connected to the rail groove 23 of the vertical guide rod 20. Between the inner surface of the movable leg 5 and the front and rear end surfaces of the movable leg 5 so as to slide smoothly. As shown in FIGS. 9 and 10, the upper ladder 39 is fitted in the rail groove 23 of the vertical guide rod 20, and receives the side end face 41 of the movable leg 5 including its corners and slides. It comprises a sliding part 42 having a substantially U-shaped cross section in contact with a fixed piece 43 projecting on the opposite side of the sliding part 42, and the fixed piece 43 is connected to the upper end of the bottom surface part in the rail groove 23 of the vertical guide rod 20. In the state of being fitted into the notch 44 formed in the above, the connecting member 27 is pressed and held. The sliding portion 42 of the upper ladder 39 is formed with recesses 45, 45 that fit into the protrusions 25, 25 in the rail groove 23. The upper ladder 39 is attached to the vertical guide rods 20 and 20 when the guide unit 7 is assembled.

  Further, as shown in FIGS. 9 and 10, the lower slider 40 receives the side end face 41 of the movable leg 5 including its corners and externally fits the lower slider 40 to the rail groove 23 of the vertical guide rod 20. And a rectangular protrusion 47 projecting from the inside of the sliding part 46, and the protrusion 47 is formed at the lower end of the side end surface 41 of the movable leg 5. The sliding portion 46 is held by being slidably fitted into the rail groove 23 in a state of being fitted into the engaging hole 48.

  Here, in order to slidably attach the movable leg 5 to the guide unit 7, first, as described above, the upper slider 39 is respectively provided at the upper ends of both the vertical guide rods 20, 20 of the guide unit 7. In the fitted state, the upper ends of the vertical guide rods 20 and 20 are connected by the connecting member 27 constituting the upper connecting member 21. Then, the cover member 28 is placed on the connecting member 27 and screwed. The lower connecting member 22 is inserted between the lower ends of the movable leg 5 through the opening 33 of the upper connecting member 21 in a state where the lower connecting member 22 is not connected between the lower ends of both the vertical guide rods 20, 20. When the movable leg 5 is further pushed in, the length of the movable leg 5 is set to be longer than that of the vertical guide rod 20. Since the lower end portion appears below the rail groove 23 and the engagement hole 48 is exposed, the protrusion 47 of the lower slider 40 is fitted into the engagement hole 48 from the front and rear directions, and the state is maintained. The movable leg 5 is moved upward to accommodate the sliding portions 46, 46 of the lower sliders 40, 40 in the rail grooves 23, 23 of the vertical guide rods 20, 20, respectively. In this state, the lower connecting member 22 is connected between the lower ends of both vertical guide rods 20 and 20.

  Since the vertical guide rod 20 is a mold material, the dimensional accuracy of the rail groove 23 is high, and the dimensional accuracy of the upper slider 39 and the lower slider 40 which are synthetic resin molded products is also high. Since the ends are connected by the upper connecting member 21 and the lower connecting member 22, the parallelism of the vertical guide rods 20, 20 is also highly accurate, so that the movable leg 5 can be smoothly moved up and down with respect to the guide unit 7 without rattling. It can be slid. In addition, since the vertical guide rod 20 is a mold material, the size and specifications can be easily changed by cutting to a predetermined length.

  When the movable leg 5 and the guide unit 7 are assembled, as shown in FIG. 4, a telescopic part 11A extending in the vertical direction of the drive mechanism 11 is vertically penetrated into the movable leg 5. The lower end of the lower connecting member 22 is fixed to the lower connecting member 22 so as not to rotate. Here, the telescopic portion 11A of the drive mechanism 11 includes a bearing cylinder 49 having a nut portion at least at its upper end and a screw shaft 50 screwed into the bearing cylinder 49. Then, the rear end portion of the operation shaft portion 11B rotatably arranged in the front and rear direction inside the upper support member 9 and the upper end portion of the screw shaft 50 are changed in direction by a pair of bevel gears or a worm and a worm gear. It is connected by the part 11C. That is, the lower end of the bearing tube 49 is fixed to the lower connecting member 22 so as not to rotate using the long hole 38, and the upper end portion of the screw shaft 50 is rotated in place inside the upper support member 9. Further, they are connected to each other and further linked to the operation shaft portion 11B by the direction changing portion 11C. Furthermore, the drive mechanism 11 incorporated in the left and right legs 2 and 2 is horizontally provided on the lower surface side of the top plate 1 between the direction changing portions 11C and 11C, as shown in FIGS. The interlocking shaft 11D is interlocked so as to rotate in synchronization. In the present embodiment, the drive mechanism 11 is a general-purpose product.

  Thus, with the movable leg 5 and the guide unit 7 assembled, the guide unit 7 is dropped from the upper open portion of the leg cover 6 as shown in FIGS. And the lower connecting member 22 at the lower end are placed on the upper surface of the lower reinforcing member 17, and the front and rear end portions of the upper surface of the lower reinforcing member 17 are placed on the upper ends of the side plates 14, 14. A connecting bolt (not shown) that penetrates the rear portion of the lower support member 8 fitted in the recessed groove portion of the lower reinforcing member 17 from below is inserted into the through holes 51 and 51 respectively formed in Is inserted into the through holes 37 of the lower connecting member 22 and screwed into the lower holes 26 of both sides of the vertical guide rod 20. Thereby, the lower support member 8 can be connected to the leg cover 6 at the same time as the guide unit 7 is connected.

  As shown in FIGS. 1, 2, and 11, a synthetic resin decorative cover 52 is fitted on the front surface side of the extension cover portion 16 of the leg cover 6. For this purpose, triangular dowels 56 projecting on both side surfaces of the fitting portion 55 of the decorative cover 52 are inserted into square holes 54 and 54 formed on both side plates of the rear reinforcing member 53 fixed to the inner rear end of the leg cover 6. , 56 are engaged with retaining. As shown in FIGS. 1 and 2, the extension cover portion 16 of the leg cover 6 fills the space behind the movable leg 5 to enhance the appearance, and the curtain on the rear plate 15 of the leg cover 6. The plate 3 can be attached stably.

  As shown in FIGS. 11 and 12, on the upper portion of the fixed leg 4, that is, the rear plate 15 of the leg cover 6, a pair of upper and lower locking tools 57, 57 are arranged in two rows on the left and right, for a total of four. The locking tools 57,... Are attached by screws 58,. The locking member 57 constitutes an upward hook when attached to the rear plate 15. Then, a total of four locking holes 59,... Formed in the side edge of the front surface of the curtain plate 3 are fitted and locked to the locking tools 57,. It is preferable to restrict the upward movement of the curtain plate 3 with a pressing member (not shown) so that the locking hole 59 does not come off from the locking tool 57.

  Here, since the curtain plate 3 shares what is attached to a desk having a normal fixed top plate, the center line P of the left and right locking tools 57, 57 is connected to the rear plate 15 of the leg cover 6. When matched with the center line CL, the side end surface of the curtain plate 3 is designed to be flush with the fixed leg 4, that is, the side plate 14 on the outer side of the leg cover 6. Therefore, in this embodiment, as shown in FIG. 12, the center line P of the left and right locking members 57, 57 is located outside the center line CL of the rear plate 15 of the leg cover 6 by a distance D. When the locking holes 59,... Of the curtain plate 3 are locked to the locking tools 57,..., The side end surface of the curtain plate 3 is outside the fixed leg 4, that is, the leg cover 6. The side plate 14 protrudes to the side by a distance D. By setting in this way, as shown in FIG. 3, even when the two desk devices with the lifting table according to the present invention are installed close to the side, the curtain plates 3 and 3 of both adjacent desks are installed. With the side end surfaces in contact with each other, a 2D gap is formed between the top plates 1 and 1. Incidentally, the distance D is 3.5 mm in this embodiment.

  In other words, since a gap is secured between the top plates 1 and 1 of the desk installed closest to both sides, the height of the top plate 1 can be adjusted by raising and lowering the top plate 1 without interfering with other top plates. Can do. Here, even when the desk device with a lifting table according to the present invention is installed side by side with a desk having a normal fixed top, even when the adjacent curtain plates 3 and 3 are in contact with each other, Since the gap of D can be secured, the top plate 1 can be raised and lowered without interference with the fixed top plate. In this way, the formation of a gap between the top plate adjacent to the top plate 1 that moves up and down is important because it not only provides a functional advantage but also reduces the risk of unintentional finger clogging. However, simply setting the distance between the tops to be larger than the size of the finger not only impairs the appearance but also cannot effectively use the space. In the present embodiment, since the drive mechanism 11 for raising and lowering the top plate 1 is a screw shaft system constituted by a screw shaft 50 in which a telescopic portion 11A extending in the vertical direction is screwed into the bearing cylinder 49, the ceiling The ascending / descending speed of the plate 1 is slow, and there is no danger of pinching a finger between the top plate 1 and the adjacent top plate.

  As shown in FIGS. 1 to 3, in the desk device with an elevation board according to the present invention, a wiring duct 60 that is opened vertically is formed between the rear edge of the top board 1 and the upper end of the curtain board 3. A cord receiver 61 is appropriately provided below the wiring duct 60. The height of the upper end of the curtain 3 is made to substantially coincide with the height of the top of the normal desk having a fixed top so that the appearance can be unified when a plurality of different desks are installed side by side. . Also, the height of the desk top is usually set to 70 cm. On the other hand, in the desk where keyboard input work of OA equipment such as a personal computer is performed, the height of the top plate is often set to about 65 cm. Of course, there is a user's physique and preference for height, and the height of the top board is not determined uniformly depending on the type of work. In the desk device with an elevation board according to the present invention, a sufficient adjustment margin is set so that the height of the top board 1 can be changed from about 65 cm to about 80 cm. Even when the top plate 1 is lowered to the lowest, a 25 mm space is opened between the upper surface of the cover member 28 located at the upper end of the main body of the fixed leg 4 and the lower surface of the upper support member 9. , Eliminating the possibility of finger jamming during this time.

  Further, as described above, the height of the upper end of the main body portion of the fixed leg 4, that is, the height of the cover member 28 is set low, but the position of the fixed leg 4 along the rear portion of the movable leg 5 is Since the extension cover portion 16 extending upward is provided at the rear end portion of the leg cover 6, even if the upper end of the curtain plate 3 is substantially coincident with the height of the top plate of the normal desk, The upper and lower portions of the curtain plate 3 can be attached using the locking members 57,..., And sufficient attachment strength can be secured. Further, a space between the front surface of the curtain plate 3 and the rear ends of the top plate 1, the movable leg 5 and the upper support member 9, that is, a lateral space of the wiring duct 60 is filled with the extension cover portion 16. Therefore, it is possible to prevent clogging of the finger at this portion as well as the appearance.

It is a side view of the desk apparatus with a raising / lowering top board which concerns on this invention. It is a partial perspective view similarly. It is a fragmentary top view of the state which installed two desk apparatuses side by side. It is an abbreviated side view of a desk device. It is the XX sectional view taken on the line of FIG. It is a disassembled perspective view of the principal part of a leg. It is a vertical side view of the assembly state which shows the relationship between a movable leg and a guide unit. It is a disassembled perspective view which similarly shows the relationship between a movable leg and a guide unit. It is a partial exploded perspective view which shows the slide structure of the longitudinal guide rod and movable leg of a guide unit. Similarly, the slide structure of the vertical guide rod and the movable leg of the guide unit is shown, (a) is an upper transverse plan view, (b) is a lower transverse plan view. It is a disassembled perspective view which shows the upper structure of a leg cover, and the attachment structure of a curtain. FIG. 2 shows a structure of a leg mounting portion for attaching a curtain plate, wherein (a) is a side view of the desk device with the curtain plate omitted, and (b) is a partial rear view of the desk device with the curtain plate omitted.

Explanation of symbols

1 top plate, 2 legs,
3 curtains, 4 fixed legs,
5 movable legs, 6 leg covers,
7 Guide unit, 8 Lower support member,
9 upper support member, 10 decorative member,
11 drive mechanism, 11A telescopic part,
11B operation shaft part, 11C direction change part,
11D interlocking shaft, 12 T-shaped bracket,
13 beam, 14 side plate,
15 rear plate, 16 extension cover,
17 lower reinforcing member, 18 front reinforcing member,
19 mounting piece, 20 vertical guide rod,
21 upper connecting member, 22 lower connecting member,
23 rail groove, 24 housing part,
25 ridges, 26 pilot holes,
27 connecting members, 28 cover members,
29 mounting holes, 30 pilot holes,
31 openings, 32 through holes,
33 openings, 34 screws,
35 screws, 36 mounting holes,
37 through holes, 38 long holes,
39 Upper slider, 40 Lower slider,
41 side end face, 42 sliding part,
43 fixed pieces, 44 notches,
45 recesses, 46 sliding parts,
47 projections, 48 engagement holes,
49 bearing cylinder, 50 screw shaft,
51 through holes, 52 decorative covers,
53 rear reinforcing member, 54 square hole,
55 fitting part, 56 triangular dowel,
57 fasteners, 58 screws,
59 Locking hole, 60 Wiring duct,
61 code receiver,
CL center line of the rear plate,
P Center line of the locking tool on both sides.

Claims (4)

  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 a drive mechanism is provided in association with the fixed leg and the movable leg so that the movable leg can be raised and lowered. A desk device with an elevating top plate capable of adjusting the height of a top plate attached to the upper end of the movable leg, wherein the fixed leg comprises a leg cover having a flat box structure which is open upward and constitutes an outer surface; A guide unit that is provided inside the leg cover and guides the movable leg so that the movable leg can be slid up and down, and the guide unit connects the upper ends of a pair of vertical guide rods arranged on the front and rear sides with an upper connecting member. A lifting frame having a rectangular frame structure in which lower portions are connected by a lower connecting member, and the guide unit is mounted in the leg cover in a state where the movable leg is held between both vertical guide rods. Desk device with board.   Both vertical guide rods of the guide unit are formed of an aluminum extrusion mold material and have a rail groove having a substantially U-shaped cross section on one side along the longitudinal direction. A synthetic resin top is formed on the upper end of the rail groove. 2. A slider is fitted, and a synthetic resin lower slider is fitted to a lower end surface of the movable leg, and the movable leg is slidably held on the guide unit via an upper and lower slider. The desk apparatus with an elevator board as described.   A lower reinforcing member for attaching a rear portion of the lower support member is fixed to a lower end of the leg cover, the guide unit is dropped and fitted from an upper opening of the leg cover, and the upper connecting member of the guide unit is connected to the leg cover. The desk device with a lifting / lowering top plate according to claim 1 or 2, wherein the desk device is mounted on the upper opening edge of the head, and the lower connecting member is mounted on the lower reinforcing member and screwed from below. The expansion / contraction portion extending in the vertical direction of the drive mechanism includes a bearing cylinder having a nut portion at least at an upper end portion and a screw shaft screwed into the bearing cylinder, and the bearing cylinder is vertically moved inside the movable leg. The desk device with a lifting / lowering top plate according to any one of claims 1 to 3, wherein the desk device is arranged so as to penetrate through the lower end of the guide unit and fixed to the lower connecting member of the guide unit so as not to rotate.

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