JP5242468B2 - desk - Google Patents

Description

  The present invention relates to a so-called console desk used for operating and operating various electronic devices installed in, for example, broadcasting / video / audio-related business facilities.

  A conventional console desk is generally composed of a lower housing for storing various devices, an operation table unit, a monitoring display unit, and the like. Often designed as one.

  For this reason, the conventional console desk needs to be designed for each installation number and layout of various devices, which takes time and effort.

  In addition, when planning an introduction, in the case of a conventional console desk, it is difficult to calculate the cost at an early stage because it is not possible to start a specific design unless the equipment installed in each part and its layout are finalized. It is. In addition, each part is closely linked in the design, so the degree of freedom for change is small, and changes in any part may affect all parts, making major changes both in design and production. Inevitably, this results in a large cost burden. Even if these burdens are allowed and changed, it is difficult to obtain an excellent appearance of the design.

  In the case of a conventional console desk, since the design concept is completed in the layout at the time of introduction planning, there is almost no expandability after introduction.

  Further, among conventional console desks, as shown in Patent Document 1, for example, a configuration in which desk elements are attached so as to be split is proposed. That is, the console desk described in Patent Document 1 has a configuration in which a front console desk having a table portion and a panel portion is detachably attached to a side surface of the rear console desk.

  This console desk can be packaged by dividing the components, thereby reducing the volume and the planar shape at the time of packing, and therefore can be easily transported and loaded without removing the equipment stored at the time of loading. In addition, the table portion can be securely fixed, and does not solve the problems of the conventional console desk described above.

  On the other hand, as a conventional technique, there is known a method of forming a frame such as furniture by joining aluminum frames and alloy materials, such as a frame material in which axial nut mounting grooves are formed on the outer periphery, so-called aluminum frames. Yes. For example, see Patent Document 2 or Patent Document 3.

  However, there is no example in which such a frame configuration method is used as a solution to the problems of the conventional console desk described above.

Microfilm of Japanese Utility Model No. 60-148179 (Japanese Utility Model Application No. 62-57824) JP 2006-329305 A US Pat. No. 3,901,612

  The present invention is to solve the above-described problems of the conventional console desk, and the elements constituting the console desk are unitized and combined to form a console desk having a desired function. By doing so, it is an object to facilitate the design as a whole, to calculate the cost at an early stage, and to easily change or extend the cost.

In order to solve the above-described problems, in the present invention, a rectangular frame-shaped main frame is constituted by a frame material in which an axial nut mounting groove is formed on the outer periphery, and the front upper lateral frame material constituting the main frame A lower unit with a support arm protruding forward and fixed, a table plate fixed on the support arm of the lower unit, a side plate fixed to a frame material on the side of the lower unit, and an upper frame of the lower unit The frame material of the main frame has two nut mounting grooves, and the frame material on the side of the main frame is narrow in the horizontal direction of the desk. As a configuration having a single nut mounting groove, a plurality of the lower units are juxtaposed side by side in the lateral direction, and the lateral lower depth of each lower unit By fixing the connecting bracket to the nut mounting groove of the facing frame material and connecting each connecting bracket of adjacent lower units with bolts and nuts, multiple lower units juxtaposed side by side are connected. The upper unit is fixed to the upper side of each lower unit, a common table plate is fixed on the support arm of each lower unit, and the side plate is fixed to the lateral side of the lower unit arranged outside. We suggest been desk.

Further, in the present invention, a rectangular frame-shaped main frame is constituted by a frame material having an axial nut mounting groove formed on the outer periphery, and a support arm is protruded to the front side in the front upper side frame material constituting the main frame. A lower unit in which a support member is fixed from a front side to a rear side on a frame material in a horizontal upper depth direction constituting the main frame, a table plate fixed on the support arm of the lower unit, and a lower part A side plate that is fixed to the frame material on the side of the unit and an upper unit that is fixed to the frame material on the upper side of the lower unit, and a contact support portion that contacts the support member of the lower unit below the upper unit constitute the frame member of the main frame, along with a structure having a nut mounting groove of Article 2, of which the lateral side of the frame member, a horizontal desk The width is narrow and the structure has a single nut mounting groove, and a plurality of the lower units are juxtaposed side by side in the lateral direction, and the nut mounting of the frame material in the lateral lower depth direction of each lower unit is performed. A plurality of lower units that are juxtaposed in the lateral direction are connected by fixing the connection brackets in the grooves and connecting the respective connection brackets of adjacent lower units with bolts and nuts, and the upper side of each lower unit. A desk is proposed in which the upper unit is fixed, a common table plate is fixed on the support arm of each lower unit, and a side plate is fixed to the side of the lower unit arranged outside . Further, in this configuration, a desk is proposed in which the support piece of the support member is inclined downward from the front side toward the rear side.

  In the present invention, in the above configuration, the upper unit is a 4U equipment mounting unit, an 8U equipment mounting unit, a heavy equipment mounting unit having a mounting plate, or an axial nut mounting groove on the outer periphery. We propose a desk that is a support made of frame material.

  And in this invention, when an upper unit is a heavy equipment mounting unit which has a mounting plate body, the desk which this mounting plate body inclines below toward the back from the front side is proposed. .

  Further, the present invention proposes a desk having a structure in which a cover having a space portion can be detachably attached to the back side of the lower unit and the upper unit with a frame material in the above configuration. In the present invention, it is proposed that a plurality of the covers are combined to cover the back side of the lower unit and the upper unit.

  In the present invention, the desk having the above-described configuration is configured such that the device is supported by the device installation frame member on the support arm, an opening for device insertion is formed on the table plate, and the lower arm of the device is formed on the support arm. We propose a desk that supports the protective cover.

  The present invention proposes a desk having a wedge-shaped corner unit in which the widths of the front side and the back side are different between adjacent lower units and upper units.

  According to the present invention, with respect to a common lower unit, a plurality of types of upper units, for example, a mounting unit for 4U equipment, a mounting unit for 8U equipment, or a mounting plate that is horizontally or highly inclined at the front side The main part of the desk can be configured by selecting the upper unit that satisfies the conditions from the heavy equipment mounting unit with the body or the support made of the frame material and connecting it to the lower unit. And while fixing a table board on the said support arm of a lower unit, a side plate can be attached to the side of a lower unit, and a desired desk can be comprised.

  At this time, the coupling of the upper unit to the lower unit and the fixing of the table plate and the side plate can be easily performed using a coupling member mounted in a nut mounting groove formed in the frame material.

  According to the present invention, a plurality of lower units can be connected and integrated in the horizontal direction, and the upper unit can be coupled to the upper side of each of the integrated plurality of lower units to constitute the main part of the desk. it can. Thus, after connecting a plurality of lower units and upper units integrally in the lateral direction, a side plate is attached to the outside of the lower unit located at the left and right ends, and a common table plate is used for the support arm of each lower unit. A desk with a desired horizontal width can be configured by fixing.

  At this time, if a wedge-shaped corner unit with different widths on the front side and the back side is interposed between adjacent lower units and upper units, a plurality of lower units and upper units can be connected in a conical or convex manner. Can be arranged at an angle. That is, when the corner unit is coupled with the narrow side as the front side, the corner unit can be arranged in a conical shape, and conversely, the wide side can be coupled with the front side as a convex side.

  The upper unit coupled to each of the plurality of lower units integrated as described above may be the same type or different types.

  Further, in the present invention, as another configuration different from the configuration in which the plurality of lower units and the upper unit are integrally connected in the lateral direction as described above, the plurality of lower units and the upper unit are arranged on the lateral side at intervals. A plurality of lower units and upper units spaced laterally by fixing a common table plate by means of respective support arms of the lower units arranged laterally in this way Can also be integrated.

  The upper unit is connected to the lower unit by combining the upper unit of the lower unit and the frame member positioned on the lower side of the upper unit with a connecting member, as well as the upper side of the main frame. The support member is fixed to the frame material on the side from the front side to the rear side, and the contact portion with the support member is provided on the lower side of the upper unit, so that the load of the equipment installed in the upper unit is reduced. Can be better received by the lower unit.

  At this time, if the support member is configured to be inclined downward from the front side toward the rear side, the load of the equipment installed by being inclined to the upper unit can be favorably received corresponding to the inclination angle. .

  In the present invention, on the back side of the lower unit and the upper unit, if the cover having a space portion is configured to be detachably attachable with a frame material, the rear part of the equipment installed in the lower unit and the upper unit is protected, Maintenance of equipment and the like becomes easy, and wiring between equipment can be stored in the cover, which is excellent in aesthetics.

  In the present invention, the support arm is configured to support the device with the device installation frame member, the table plate is formed with an opening for device insertion, and the support arm is further configured to support the protective cover at the bottom of the device. By doing so, a heavy device can be supported at the location of the table plate, and variations in the installation location of the device can be further increased.

  Furthermore, in the present invention, since the frame material constituting the main frame has two nut mounting grooves, the degree of freedom of the mounting position of metal parts such as angle members and brackets for mounting devices on the lower unit is increased. high. At this time, if the frame material on the side is narrow in the horizontal direction of the desk and has a single nut mounting groove, it is necessary even if a plurality of lower units are connected and integrated in the horizontal direction. Since the width of the nut is not increased more than that, and the two nut mounting grooves are formed by juxtaposing and connecting the frame material having the structure with one nut mounting groove, the above-described freedom of the mounting position is achieved. The degree is not disturbed.

  Thus, the desk according to the present invention does not need to be designed for each number of installed devices and layouts, and therefore, unlike the conventional desk, it does not take time and cost. In the conventional case, since the design concept is completed in the layout at the time of introduction planning, there is almost no extensibility after introduction, but the extensibility after introduction is very high in the desk according to the present invention.

It is a perspective view which shows the state in the middle of comprising the desk which concerns on this invention. It is the perspective view which looked at the desk of FIG. 1 from the other direction. FIG. 5 is an explanatory perspective view showing constituent members of a main frame constituting the desk according to the present invention. It is a perspective view which shows the main frame which comprises the desk which concerns on this invention. It is the perspective view which looked at the main frame of Drawing 4 from the other direction. It is a perspective view which shows the state in the middle of comprising the lower unit of the desk which concerns on this invention. It is the perspective view which looked at the lower unit of Drawing 6 from the other direction. FIG. 3 is an explanatory perspective view showing a configuration example of a desk according to the present invention. It is explanatory explanatory drawing which shows the other structural example of the desk which concerns on this invention. FIG. 10 is an explanatory perspective view showing still another configuration example of the desk according to the present invention. It is a perspective view which shows the state in the middle of comprising the lower unit which concerns on this invention in parallel, and comprising a desk. It is a perspective view which shows the state in the middle of composing another desk by juxtaposing a plurality of lower units concerning the present invention. It is a perspective view of an example of a desk constituted by juxtaposing a plurality of lower units according to the present invention. FIG. 6 is a perspective view of another example of a desk configured by juxtaposing a plurality of lower units according to the present invention. It is the perspective view which looked at the desk of FIG. 14 from the other direction. It is a perspective view which shows the component of the other desk which comprises the lower unit which concerns on this invention, and comprises two or more. It is a perspective view of the desk comprised by the component of FIG. It is a perspective view which shows the component of the other desk which further comprises the lower unit which concerns on this invention, and comprises it. It is a perspective view which shows the component of the other desk which comprises the lower unit which concerns on this invention, and comprises two or more. It is a perspective view of the desk comprised by the component of FIG.

Next, a mode for carrying out the present invention will be described with reference to the accompanying drawings.
FIGS. 1-18 is explanatory drawing which shows embodiment of the desk based on this invention.
As shown in the figure, the desk according to the present embodiment has a frame material 2 (2fu, 2fd, 2bu, 2bd, 2fl, 2fr, 2bl, 2br, 2ul) in which an axial nut mounting groove 1 is formed on the outer periphery. , 2ur, 2dl, 2dr) constitutes a rectangular frame-shaped main frame 3, and a support arm 4 is protruded forward and fixed to at least the left and right sides of the frame material 2fu in the front upper lateral direction constituting the main frame 3. The lower unit D, the table plate 5 fixed on the support arm 4 of the lower unit D, and the side fixed to the side frame materials 2fl, 2fr, 2bl, 2br, 2ul, 2ur, 2dl, 2dr of the lower unit D It is characterized by comprising the plate 6 and the upper unit U fixed to the frame material 2bu, 2ul, 2ur on the upper side of the lower unit D.

  In this embodiment, the frame material 2 uses a so-called aluminum frame in which an axial nut mounting groove 1 is formed on the outer periphery as described above, and the frame material 2 made of this aluminum frame is used as a bracket or a bolt. The main frame 3 and the lower unit D are constructed by coupling using a coupling material 7 such as a nut. Since a method for constructing a frame using such an aluminum frame is well known, detailed description thereof will be omitted.

  In this embodiment, the frame materials 2fu, 2fd, 2bu, 2bd are formed with two nut mounting grooves 1 on the entire circumference, and the frame material in the front upper lateral direction that fixes the support arm 4 on the left and right sides. 2fu is twice the size of the other frame materials 2fd, 2bu, 2bd. In addition, the frame material 2fl, 2fr, 2bl, 2br, 2ul, 2ur, 2dl, 2dr on the side of the lower unit D is formed with half the width in the width direction corresponding to the horizontal direction of the desk and fitted with a single nut. The groove 1 is formed, and the other surface has the same dimensions as the other frame materials 2fd, 2bu, 2bd, and two nut mounting grooves 1 are formed.

  The main frame 3 is constructed using the frame material 2 and the bonding material 7 as shown in FIGS. 4 and 5. In the drawing, a corner bracket is shown as the binder 7.

  In this embodiment, the under table bracket 8 is fixed with the nut mounting groove 1 on the upper surface side of the frame material 2fu in the front upper lateral direction that fixes the support arm 4 with the nut mounting groove 1 on the front side. A table support piece 9 is formed to protrude from the front side of the table bracket 8, and a cable insertion port 10 is further formed. Further, a support member 11 is fixed from the front side to the rear side with a nut mounting groove 1 on the upper surface of the frame material in the horizontal upper depth direction constituting the main frame 3, that is, the frame materials 2ul and 2ur. In this embodiment, the support member 11 has the support piece 12 formed on the upper portion thereof inclined downward from the front side toward the rear, but depending on the configuration of the upper unit U described later, the support member 11 is not inclined. can do. Between the frame materials 2ul, 2dl; 2ur, 2dr, an angle material 13 used to support the storage device is fixed with the nut mounting groove 1 corresponding to the inside of the main frame 3, and further, the frame material 2dl. , 2dr, a connecting bracket 14 for connecting the lower unit D in the lateral direction is fixed with a nut mounting groove 1.

  6 and 7, the table plate 5 is fixed on the support arm 4 and the under table bracket 8, and the side frame materials 2fl, 2fr, 2bl, 2br, 2ul, 2ur, The lower unit D can be configured by fixing the side plate 6 to 2 dl and 2 dr, and the upper unit U is fixed on the upper frame material 2 bu, 2 ul and 2 ur and the support member 11, thereby providing a desk. Can be configured.

  The upper unit U shown in FIGS. 1 and 2 is a box-shaped 4U equipment mount unit, and an arm support mechanism is provided on the rear upper surface. That is, this arm support mechanism is provided with an arm rail 16 having a groove portion 15 in the lateral direction, and supports the arm support member 17 in the groove portion 16 so as to be slidable. The arm support member 17 has a function of installing a device such as a liquid crystal display at the end of an arm (not shown) projectingly supported thereon.

  In addition, as the upper unit U fixed on the upper side of the lower unit D, various types can be combined as illustrated in FIG. 8 or FIG.

  For example, in FIG. 8, the upper unit U of (a) is a mounting unit of 4U equipment provided with an arm support mechanism, as in FIGS. 1 and 2, while (b) is an 8U equipment provided with an arm support mechanism. A mount unit, (c) is a mount unit for 8U equipment not provided with an arm support mechanism, and (d) is a mount unit for 4U equipment not provided with an arm support mechanism.

  In FIG. 9, the upper unit U in FIG. 9A is a heavy equipment mounting that supports a mounting plate 19 having a cable insertion opening 18 on a support piece 12 of a support member 11 by an inclined support portion 20. (B) is a heavy equipment placement unit that supports a placement plate 19 that does not include a cable insertion opening 18 on a support piece 12 of a support member 11 by an inclined support portion 20. is there. In these heavy equipment mounting units, the mounting plate 19 is horizontally supported by the inclined support member 11 of the lower unit D, the support piece 12 and the inclined support portion 20 of itself. On the other hand, the upper unit U of (c) is a heavy equipment mounting unit that supports the mounting plate 19 on the support piece 12 of the support member 11 by a support portion 20 that is not inclined. In other words, the mounting plate 19 is supported by being inclined at an inclination angle between the support member 11 and the support piece 12. Further, the upper unit U in (d) is erected by connecting the support column 21 to the upper side of the frame material 2bu by the bracket 22, and, for example, a pivot arm (not shown) or the like is provided in the groove portion 24 of the arm rail 23 provided on the upper portion. This is a wall mount unit for supporting a device (not shown) such as a liquid crystal display via the.

  In the above, an example in which one upper unit U is attached to one lower unit D is shown, but it is needless to say that a plurality of non-exclusive upper units U can be attached to one lower unit D. It is. For example, FIG. 10 shows an example in which the heavy equipment mounting unit shown in FIG. 9B and the wall mount unit shown in FIG. As shown in FIG. 9, the wall mount unit support 21 can be attached along the rear side of the frame materials 2bl and 2br as well as being connected to the upper side of the frame material 2bu. .

  In the above embodiment, a desk is constituted by one lower unit D. However, in the present invention, a plurality of lower units D,... An upper unit U is fixed to each other, a common table plate 5c is fixed on the support arm 4 of each lower unit D, and a side plate 6 is fixed to the side of the lower unit arranged outside to constitute a desk. can do. At this time, door plates are attached to the front and rear sides of the main frame 3 serving as an opening as necessary. A step plate can be appropriately attached to the front side of the frame material 2fd of the main frame 3.

  FIG. 11 shows the state before connecting the main frame 3 constituting the two lower units D with the support arm 4 attached thereto, and FIG. 12 shows the four lower units D. 2 shows a state in which main frames 3 are juxtaposed and connected, and a support arm 4 is attached to each main frame 3. As shown in an enlarged view in the circle of FIG. 12, the adjacent lower units D are connected to each other by connecting the connecting brackets 14 fixed to the frame materials 2 dl and 2 dr of the respective lower units D with bolts and nuts 25. And can be done easily. At this time, when the frame material 2fl, 2fr, 2bl, 2br, 2ul, 2ur, 2dl, 2dr on the side is narrow in the lateral direction of the desk and has a single nut mounting groove, Even if a plurality of lower units D are connected and integrated in the lateral direction, the width does not increase more than necessary, and the frame material 2fl, 2fr, 2bl, 2br has a structure with a single nut mounting groove 1. , 2 ul, 2 ur, 2 dl, 2 dr are joined together to form the two nut mounting grooves 1, so that the degree of freedom of the mounting position of each member is not hindered. In the examples of FIGS. 11 and 12, the support arms 4 are attached to the left and right sides of the plurality of juxtaposed lower units D. In this case, the load resistance of the table plate 5c can be increased. However, in some cases, any of the adjacent support arms 4 of the adjacent lower unit D can be omitted.

  In FIG. 13, three lower units D are juxtaposed, a common table plate 5c is fixed on the support arm 4 of a plurality of connected lower units D, and a side plate 6 is placed on the lateral side of the lower units D arranged outside. An example of a fixed desk is shown. In this example, an upper unit U having the same configuration is attached to each of three juxtaposed lower units D to form a desk, but it goes without saying that upper units U having different configurations can be appropriately combined. It is not. Reference numeral 26 denotes a step plate attached to the front side of the frame material 2fd of the main frame 3 as described above.

  On the other hand, in the present invention, as in the embodiment shown in FIGS. 14 and 15, a wedge-shaped corner unit C in which the widths of the front side and the back side are made different between the adjacent lower unit D and upper unit U. Can be interposed.

  In such a configuration, a plurality of lower units D and upper units U can be arranged at an angle in the shape of a cape or convex as shown in the figure. That is, when the narrow side of the corner unit C is combined as the front side, it can be arranged in a conical shape as shown, and conversely, it can be arranged in a convex shape by connecting the wide side as the front side. it can.

  Further, in the present invention, as shown in FIGS. 16 and 17, the support arm 4 is configured to support a device such as a display by a device installation frame member 27, and the device plate opening 5 is provided with a device insertion opening 28. In addition, the supporting arm 4 is configured to support the protective cover 29 at the lower part of the device, so that a heavy device is placed on the table plate 5 by the device installation frame member 27 attached to the supporting arm 4. It is possible to support, and the variation of the installation location of the equipment can be further increased.

  Further, in the present invention, as shown in FIG. 18, a cover 31 having a space portion 30 is detachably attached to the back side of the single unit or the plurality of lower units D and the upper unit U with frame members 2bu, 2bd, 2bl, 2br. It can be configured to be attachable. At this time, another frame material 2ot can be added to the frame materials 2bu, 2bd, 2bl and 2br in order to enlarge the space.

  Furthermore, in the present invention, as shown in FIGS. 19 and 20, as another configuration different from the configuration in which the plurality of lower units D and the upper unit U are integrally juxtaposed in the lateral direction and connected together as described above. The plurality of lower units D and the upper unit U can be arranged laterally at intervals, and a common table plate 5c is formed by the support arms 4 of the lower units D arranged laterally in this way. By fixing, a plurality of lower units D and upper units U arranged at intervals on the lateral side can be integrated.

  In the figure, reference numeral 32 denotes a cable insertion opening provided on the table plate 5, and 33 denotes a door plate.

D Lower unit U Upper unit 1 Nut mounting groove 2 (2fu, 2fd, 2bu, 2bd, 2fl, 2fr, 2bl, 2br, 2ul, 2ur, 2dl, 2dr, 2ot) Frame material 3 Main frame 4 Support arm 5, 5c Table Plate 6 Side plate 7 Binder (bracket, nut, etc.)
8 Under table bracket 9 Table support piece 10 Cable insertion port 11 Support member 12 Support piece 13 Angle member 14 Connection bracket 15 Groove portion 16 Arm rail 17 Arm support member 18 Cable insertion port 19 Mounting plate 20 Support portion 21 Post 22 Bracket 23 Arm rail 24 Groove 25 Bolt / nut 26 Step plate 27 Equipment installation frame member 28 Equipment insertion opening 29 Protective cover 30 Space 31 Cover 32 Cable insertion hole 33 Door plate

Claims (12)

A lower frame unit, in which a rectangular frame-shaped main frame is formed by a frame material in which an axial nut mounting groove is formed on the outer periphery, and a support arm protrudes forward and is fixed to a frame material in the upper front lateral direction constituting the main frame. When, is composed of a table plate for fixing on the support arm of the lower unit, and the side plates secured to the side frame member of the lower unit, the upper unit is fixed to the upper frame member of the lower unit, the main The frame material of the frame is configured to have two nut mounting grooves, and the frame material on the side of the frame is narrow in the lateral direction of the desk and has a structure of one nut mounting groove. A plurality of the lower units are juxtaposed side by side in the horizontal direction and connected to the nut mounting groove of the frame material in the horizontal lower depth direction of each lower unit By connecting the connecting brackets of adjacent lower units with bolts and nuts, the multiple lower units juxtaposed in the lateral direction are connected to each other, and the upper part is placed on the upper side of each lower unit. A desk comprising a unit, a common table plate fixed on a support arm of each lower unit, and a side plate fixed to a lateral side of the lower unit arranged on the outside . A rectangular frame-shaped main frame is constituted by a frame material in which an axial nut mounting groove is formed on the outer periphery, and a support arm is protruded and fixed to the front side lateral frame material constituting the main frame, and fixed. A lower unit in which a support member is fixed from the front side to the rear side in a frame material in a horizontal upper depth direction constituting the main frame, a table plate fixed on the support arm of the lower unit, and a lateral side of the lower unit A side plate that is fixed to the frame material and an upper unit that is fixed to the upper frame material of the lower unit, and a lower portion of the upper unit that forms a contact support portion with the support member of the lower unit , The frame material of the main frame is configured to have two nut mounting grooves, and the frame material on the side of the main frame is narrow in the horizontal direction of the desk. A structure having a single nut mounting groove, a plurality of the lower units are juxtaposed side by side in the lateral direction, and a connection bracket is fixed to the nut mounting groove of the frame material in the lateral lower depth direction of each lower unit Then, by connecting the connecting brackets of the adjacent lower units with bolts and nuts, a plurality of the lower units juxtaposed in the lateral direction are connected, and the upper unit is fixed to the upper side of each lower unit. A desk comprising: a common table plate fixed on a support arm of each lower unit; and a side plate fixed to the lateral side of the lower unit disposed outside . The desk according to claim 2, wherein the support piece of the support member is inclined downward from the front side toward the rear side. The desk according to any one of claims 1 to 3, wherein the upper unit is a mount unit for 4U equipment . The desk according to any one of claims 1 to 3, wherein the upper unit is an 8U equipment mount unit . The desk according to any one of claims 1 to 3, wherein the upper unit is a heavy equipment mounting unit having a mounting plate . The desk according to claim 6 , wherein the mounting plate body is inclined downward from the front side toward the rear side . The desk according to any one of claims 1 to 3, wherein the upper unit is a support column made of a frame material in which an axial nut mounting groove is formed on the outer periphery . The desk according to any one of claims 1 to 3, wherein a cover having a space portion can be detachably attached to the back side of the lower unit and the upper unit with a frame material . The desk according to claim 9 , wherein the cover is configured to cover a back side of the lower unit and the upper unit by combining a plurality of covers . The support arm is configured to support the device by a device installation frame member, the table plate is formed with an opening for device insertion, and the support arm is configured to support the lower protective cover of the device. The desk according to any one of claims 1 to 10 . The wedge-shaped corner unit which made the width | variety of the front side and the back side differ between adjacent lower units and upper units is comprised, The one of Claims 1-11 characterized by the above-mentioned. of the desk.

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