JP4289166B2 - Sleeve structure, desk - Google Patents

Description

  The present invention relates to a sleeve structure disposed on a sleeve portion of a desk.

Conventionally, the side portion of the desk is often provided with a structure for storing articles such as a fixed sleeve and a movable wagon. In this type of structure, it is customary that the drawers that move forward and backward from the housing are arranged in a plurality of stages above and below, so that articles can be stored in the storage space held by each drawer (for example, the following patent document reference).
JP 2001-190337 A JP 2003-199632 A

  However, in reality, the storage capacity of the sleeve structure is not fully utilized, and articles tend to overflow on the top plate or on the user's feet.

  The present invention made in view of the above is intended to realize a sleeve structure in which usability is further improved and storage capacity is sufficiently utilized by a user.

  In order to solve the above-described problems, in the present invention, in a sleeve structure provided with a plurality of drawers and a housing for housing these drawers and arranged on a sleeve portion of the desk, at least the uppermost drawer is provided in the desk. It was assumed to open from the inside to the top. That is, a drawer opened on the side of the user who uses the desk is provided at least in the uppermost stage, and the act of putting in and out the article to the drawer is further simplified. A user using the desk can easily access the storage space of the drawer. In addition, the complexity of frequently storing articles in the drawer or taking out desired articles from the drawer is reduced. Further, the drawer at the top is less likely to interfere with the leg feathers of the chair on which the user is seated or the user's own feet when pulled out, and is suitable as a storage place for articles that are frequently taken in and out. As a result, it is possible to avoid the situation in which the storage capacity of the sleeve structure is fully utilized by the user and the articles are scattered on the top plate of the desk or the user's feet. The sleeve structure according to the present invention may be a fixed sleeve provided integrally with a desk, or may be a wagon, a cabinet, or the like that can be separated from the desk.

  The drawer has a bottom plate and a pair of side plates rising from both side edges of the bottom plate, and has a storage space between both side plates, and the height of the inner side plate in the desk is the height of the outer side plate in the desk. If it is set to be lower than the dimensions, the drawer can keep the stored articles properly.

  In recent offices, it is common to use paper of a predetermined size (typically A4) as document paper, and often a file standardized according to the paper size is handled. However, the existing sleeve structure is not necessarily optimized for storing such a large number of files, and there is a problem that the files overflow and press the work space. In the present invention, paying attention to the above-mentioned problem for the first time, a lottery optimized for the purpose of storing many files of a predetermined standard is provided. For example, it is assumed that at least the uppermost drawer has a storage space whose inner dimension in the width direction corresponds to the cover width of a predetermined standard file. Here, the cover width refers to the dimension of the front cover or back cover of the file in the direction leading to the spine, and the correspondence refers to a dimension that is substantially the same or slightly larger than that. With such a configuration, it is possible to efficiently store a file of a predetermined standard in a state in which the cover width direction is along the width direction of the storage space, that is, in a state where the back is directed inward on the desk. The user using the desk can visually recognize the back of the file stored there simply by pulling out the drawer. Further, if the storage space is configured to store the files of the predetermined standard with the cover height direction facing up and down, as in the case of storing a plurality of files side by side on a bookshelf, A plurality of files can be displayed with the back facing inward.

  In addition, at least the lowermost drawer may have a storage space whose inner dimension in the depth direction corresponds to a plurality of times the cover height dimension of a file of a predetermined standard. Here, the cover height refers to the dimension of the front cover or back cover of the file in the direction perpendicular to the cover width direction. If this is the case, it is possible to store a number of files efficiently because a plurality of files of a predetermined standard can be stored side by side with the cover height direction aligned with the depth direction of the storage space. Become. Further, if the storage space is configured to store the file of the predetermined standard with the cover width direction thereof being directed up and down, the file can be stored with the back of the file facing upward. The user using the desk can visually recognize the back of the file stored there simply by pulling out the drawer. Incidentally, in a widely used S (Side Opening) type file, the cover width dimension is often smaller than the cover height dimension. Therefore, it is also conceivable to reduce the height of the drawer, as it stores the short cover width direction along the height direction of the storage space when storing files in the drawer.

  It is preferable that the partition plate that partitions the storage space of the drawer forward and backward is not obstructed when an article is taken in and out of the drawer if the upper corner portion on the inner side of the desk is cut off.

  If shelf support means for supporting one end side of the shelf arranged in the lower limb space of the desk is provided on the inner side surface of the housing of the casing, files and other articles are placed on the shelf. The lower limb space of the desk can be used for storage. The shelf support means is generally constituted by a hook hole formed on the side surface of the housing and a shelf holder that engages with the hook hole and is attached to the side surface of the housing. Support the side. However, it does not prevent the shelf holder from being attached to the side surface of the casing in a manner other than engaging with the hook hole (that is, fastening with bolts, adhesion, welding, etc.). Moreover, when the engaging claw is provided in the shelf and the engaging claw is engaged with the hook hole to support the one end side of the shelf on the side surface of the housing, the shelf holder becomes unnecessary.

  A desk in which the sleeve structure described above is arranged in the sleeve portion is easy to use and can be used to easily put in and take out articles. In particular, since a file of a predetermined standard can be efficiently stored, it is extremely suitable for use in a recent office or the like.

  In addition, if a concave portion that can be put on a finger is formed on the outer side surface of the casing, in other words, the outer side surface of the sleeve structure, this can be used for carrying the desk.

  According to the present invention, it is possible to realize a sleeve structure that is more user-friendly and that can fully utilize its storage capacity.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The desk shown in FIGS. 1 and 2 is a desk used in an office or the like. The desk of the present embodiment is provided on the top plate 3, the left and right sleeve structures 1 and 2 that support the top plate 3, and the lower limb space under the top plate 3 provided at the rear end (non-use end) of the desk. The curtain plate 4 is provided.

  The left sleeve structure 1 on the left side when viewed from the user who uses the desk mainly includes a housing 11 provided integrally with the desk, and a plurality of drawers 12 and 13 accommodated in the housing 11. This is a component. When the drawers 12 and 13 are pushed into the housing 11, only the end plates 121 and 131 appear on the front. If the drawers 12 and 13 are pulled out of the housing 11, the storage spaces SU and SD formed behind the end plates 121 and 131 can be exposed.

  The housing 11 contains an internal space that can accommodate the drawer. The front surface of the housing 11 is open, and the internal space of the housing 11 communicates with the outside through the opening, but is shielded from the side, the rear, and the top.

  In the present embodiment, upper and lower two-stage drawers 12 and 13 are arranged on the left sleeve structure 1. As shown in FIGS. 2 and 3, the upper drawer 12 is joined to the bottom plate 122, a pair of side plates 123 and 124 that rise from both side edges of the bottom plate 122, and the bottom plate 122 and the rear edges of the side plates 123 and 124. The rear plate 125 and the end plate 125 and the end plate 121 joined to the front edges of the side plates 123 and 124, and the storage space SU surrounded by the bottom plate 122, the side plates 123 and 124, the rear plate 125 and the end plate 121 are provided. Have. Then, the height of the inner side plate 124, ie, the right side plate 124, is set lower than the outer side plate 123, ie, the left side plate 123, so that the storage space SU is opened from the inner side to the upper side. I have to.

  The lower drawer 13 also includes a bottom plate 132, a pair of side plates 133 and 134 rising from both side edges of the bottom plate 132, a rear plate 135 joined to the rear edges of the bottom plate 132 and both side plates 133 and 134, a bottom plate 132, and The end plate 131 is joined to the front edges of the side plates 133 and 134, and has a storage space SD surrounded by the bottom plate 132, the side plates 133 and 134, the rear plate 135 and the end plate 131. Also in the lower drawer 13, the height of the inner side plate 134 is set lower than that of the outer side plate 133, and the storage space SD is opened from the inner side to the upper side.

  Rail mechanisms 14 and 15 extending in the depth direction are provided on the inward surfaces of the side walls 111 and 112 of the housing 11 in correspondence with the drawers 12 and 13 in the upper and lower stages, respectively. Each of the rail mechanisms 14 and 15 employs, for example, a known slide rail mechanism, suspension rail mechanism, or the like. The fixed portions of the rail mechanisms 14 and 15 are attached to the inward surfaces of the side walls 111 and 112, and the movable portions are mounted. The drawers 12 and 13 are attached to the outer surfaces of the side plates 123, 124, 133 and 134, and the drawers 12 and 13 are supported so as to be slidable back and forth through relative movement between the fixed part and the movable part. Usually, the rail mechanisms 14 and 15 are provided so as to be paired at the same height position on the left and right. The inner dimension in the depth direction of the storage space SD of the lower drawer 13 is larger than the inner dimension in the depth direction of the storage space SU of the upper drawer 12. Accordingly, as shown in FIGS. 4 and 5, the pull-out stroke of the rail mechanism 15 that supports the lower drawer 13 is longer than that of the rail mechanism 14 that supports the upper drawer 12.

  The drawers 12 and 13 are configured so as to be suitable for storing a plurality of files of A4 size that are standardized in order to bind A4 size paper sheets. More specifically, the inner dimension in the width direction of the storage space SU of the upper drawer 12, in other words, the distance between the side plates 123 and 124 is set in correspondence with the cover width L 1 of the file F of the predetermined standard. . Further, the storage space SU can store a file F having a predetermined standard in a state where the cover height L2 direction is directed up and down. More specifically, the height dimension of the storage space SU of the upper drawer 12, in other words, the distance from the bottom plate 122 to the vicinity of the upper end of the end plate 121 is set to be larger than the cover height L2 dimension of the file F of the predetermined standard. is doing. As a result, as shown in FIG. 4, with the back F1 of the file F facing inward in the desk, that is, in the state facing the user using the desk, the plurality of files F are arranged along the depth direction. It is possible to stand up and display. Since the upper drawer 12 is located relatively close to the user's line of sight, the user can view the storage space SU of the upper drawer 12 from the side, and the drawer can be stored only by pulling out the drawer 12. The back F1 of the file F is easily visible. In addition, since the storage space SU of the drawer 12 is also opened inward, the user using the desk can easily use the file F and other items. The upper drawer 12 is suitable for storing files F that are relatively frequently used.

  In addition, the inner dimension in the depth direction of the storage space SD of the lower drawer 13, in other words, the distance from the end plate 131 to the rear plate 135 corresponds to a plurality of times the cover height L2 dimension of the file F of the predetermined standard. Yes. Further, the storage space SD can store a file F having a predetermined standard in a state where the cover width L1 direction is directed up and down. More specifically, the height dimension of the storage space SD of the lower drawer 13 is set to be larger than the cover width L1 dimension of the file F of the predetermined standard. Therefore, as shown in FIG. 5, it is possible to arrange a plurality of files F (two in the illustrated example) along the depth direction with the back F1 of the file F facing upward. is there. Since the lower drawer 13 is located relatively far from the user's line of sight, the user looks down on the storage space SD of the lower drawer 13, but stores a plurality of files F as described above. If this is done, the back F1 of the file F stored therein can be easily visually recognized by simply pulling out the drawer 13. In this embodiment, the storage space SD of the lower drawer 13 is also opened inward so that the user using the desk can easily put in and out the file F and other items. The lower drawer 13 is suitable for storing files F that are relatively infrequently used.

  Each of the drawers 12 and 13 can be equipped with one or a plurality of partition plates 16 that divide the storage spaces SU and SD into front and rear. The partition plate 16 is a thin plate body having a substantially trapezoidal shape when viewed from the front, and an engagement piece 161 protruding outward is formed on the lower edge and one side edge of the partition plate 16. Engaging grooves 126 and 136 corresponding to the engaging pieces 161 of the partition plate 16 are formed in the bottom plates 122 and 132 and the outer side plates 123 and 133 of the drawers 12 and 13. Usually, the engagement grooves 126 and 136 are intermittently drilled along the depth direction. The partition plate 16 can be attached to the drawers 12 and 13 by inserting the engagement pieces 161 into the engagement grooves 126 and 136. In addition, the partition plate 16 in the present embodiment has its upper corner cut off so that the upper end of the other side edge where the engagement piece 161 is not formed is lower than the upper end of the one side edge. is there. In a state where the partition plate 16 is mounted on the drawers 12 and 13, the side where the upper corner of the partition plate 16 is cut off is located on the inner side of the desk, and the upper end of the side edge is the side plate 124 on the same side of the drawers 12 and 13. , 134 close to the upper end. This is due to the fact that the storage spaces SU and SD are open from the inside upward, and the partition plate 16 interferes with the user's fingers when the file F or the like is inserted into or removed from the storage spaces SU and SD. It has the effect of avoiding it.

  Further, as shown in FIG. 6, one end side of the shelf 5 passed to the lower limb space of the desk is placed on the inner side surface of the housing 11 of the left sleeve structure 1, in other words, on the outer surface of the side wall 112 on the inner side. Shelf support means 17 for supporting is provided. The shelf 5 has a front-rear width that is about half of the depth dimension of the desk, and is arranged near the back of the desk. The shelf 5 is a second sleeve of the right sleeve structure 2 described later from the side surface of the housing 11 of the left sleeve structure 1. It extends to the storage space S2. The shelf support means 17 of this embodiment includes a hook hole 171 formed on the outer surface of the side wall 112 of the housing 11 and a shelf holder 172 attached to the side wall 112 of the housing 11 by engaging with the hook hole 171. And the element. Usually, the hook hole 171 is intermittently formed along the height direction. One side end of the shelf 5 is supported by the housing 11 via a shelf holder 172.

  As shown in FIGS. 7 and 8, the right sleeve structure 2 on the right side as viewed from the user who uses the desk can store the article from the first storage space S1 in which the article can be taken in and out from the front. Second storage space S2. The right sleeve structure 2 in the present embodiment is provided with a storage 21 containing the first storage space S1 integrally with the desk, and the second storage space S2 behind the first storage space S1. Formed.

  The storage 21 includes an upper wall 211, a lower wall 212, left and right side walls 213 and 214, and a rear wall 215 that shield the first storage space S1, and opens forward. A hinged door 22 is attached to the front surface of the storage 21 via a hinge, and the hinged door 22 opens and closes an opening that communicates the first storage space S1 with the outside. Hook holes 216 are intermittently formed along the height direction on the inward surfaces of the side walls 213 and 214, and the shelf holder 217 can be attached by engaging with the hook holes 216. By using these, the shelf 218 can be installed in the first storage space S1 so that the height position can be changed.

  The storage 21 is configured to be suitable for storing a plurality of files F having a predetermined standard. More specifically, the inner dimension in the height direction of the first storage space S1 in the storage 21, in other words, the distance from the upper wall 211 to the lower wall 212, the cover height L2 dimension of the file F of the predetermined standard. It corresponds to multiple times. Further, the inner dimension in the depth direction of the first storage space S1, in other words, the distance from the vicinity of the front end of the storage 21 to the rear wall 215 is set to be larger than the cover width L1 dimension of the file F of the predetermined standard. . As a result, as shown in FIG. 9, a plurality of files F can be set up and down and displayed in a plurality of levels (in the illustrated example, two levels) with the back F1 of the file F facing forward. Yes.

  Thus, the second storage space S <b> 2 exists between the rear wall 215 of the storage 21 and the curtain plate 4. The inner dimension in the depth direction of the second storage space S2 is substantially equal to the inner dimension in the depth direction of the first storage space S1. The second storage space S2 is opened to the inner side of the desk, that is, to the left, and communicates with the lower limb space. On the other hand, the outer side, that is, the right side is closed. In the illustrated example, the second storage space S2 is shielded from the outer side by extending the side wall 214 of the storage case 21 located outward from the rear wall 215. The rear of the second storage space S2 is shielded by the curtain plate 4.

  One or a plurality of shelves 5 and 6 are provided in the second storage space S2. One of them is the shelf 5 passed to the lower limb space of the desk as described above. One end of the shelf 5 is supported by the casing 11 of the left sleeve structure 1, but the other end is the latter half of the side wall 214 of the storage 21 that shields the second storage space S <b> 2 from the outside. Supported by In order to support the other end side of the shelf 5, a shelf support means 23 similar to that provided in the housing 11 of the left sleeve structure 1 is provided in the rear half of the side wall 214 of the storage 21. That is, the hook hole 231 is intermittently formed along the height direction on the inward surface of the rear half of the side wall 214, the shelf holder 232 is attached to be engaged with the hook hole 231, and the other end side of the shelf 5 is It is supported via a shelf holder 232. The height position of the shelf 5 can be adjusted by changing the hook holes 171 and 231 with which the shelf holders 172 and 232 are engaged. However, the aspect in which the other end side of the shelf 5 is supported by the rear wall 215 of the storage 21 or the curtain plate 4 is not disturbed. The other is a shelf 6 whose both ends are accommodated in the second storage space S2. The shelf 6 does not protrude into the lower limb space. The shelf 6 is supported by the rear half of the side wall 214 of the storage 21, the rear wall 215 of the storage 21, or the curtain 4. In this embodiment, the shelf 6 is provided below the shelf 5 described above. In the illustrated example, it is installed at the lower end of the desk, near the lower edge of the curtain plate 4. The shelf 6 is assumed to be mainly used for placing footwear, bags, etc. of the user who uses the desk, and a part of the shelf 6 is cut out.

  By the way, on both outer sides of the desk, that is, the outer side surface of the housing 11 of the left sleeve structure 1 and the outer side surface of the storage 21 of the right sleeve structure 2, recesses 7 on which fingers can be hung are formed. It is. These recesses 7 are used when carrying the desk.

  A drawer 8 is also provided between the left sleeve structure 1 and the right sleeve structure 2 and immediately below the top plate 3. The central drawer 8 is set to have a deep internal dimension in the height direction so as to accommodate a notebook personal computer or the like.

  According to the present embodiment, in the sleeve structure 1 that includes the plurality of drawers 12 and 13 and the casing 11 that accommodates the drawers 12 and 13 and is arranged on the sleeve portion of the desk, at least the uppermost drawer 12 is provided. The desk is open from the inside to the top. In other words, the drawer 12 that is open also on the side of the user who uses the desk is provided, and the act of putting in and out the article to the drawer 12 is further simplified. Since the user who uses the desk can easily access the storage space SU of the drawer 12, there is a feeling of complexity in frequently storing articles in the drawer 12 or taking out desired articles from the drawer 12. To reduce. Further, the upper drawer 12 is less likely to interfere with the leg feathers of the chair on which the user is seated or the user's own feet when pulled out, and is suitable as a storage place for articles that are frequently taken in and out. As a result, it is possible to avoid a situation in which the storage capacity of the sleeve structure 1 is fully utilized by the user and articles are scattered on the top 3 of the desk, the user's feet, and the like.

  The drawer 12 includes a bottom plate 122 and a pair of side plates 123 and 124 rising from both side edges of the bottom plate 122. The drawer 12 has a storage space SU between the side plates 123 and 124, and the height of the inner side plate 124 in the desk. Since the dimension is set to be lower than the height dimension of the outer side plate 123 on the desk, the drawer 12 can continue to hold the stored articles appropriately.

  Since at least the uppermost drawer 12 has a storage space SU whose inner dimension in the width direction corresponds to the cover width L1 of the file F having a predetermined standard, the cover width L1 direction is aligned with the width direction of the storage space SU. It is possible to efficiently store the file F of a predetermined standard in the folded state, that is, with the back F1 facing inward on the desk. The user using the desk can visually recognize the back F1 of the file F stored therein only by pulling out the drawer 12. Further, since the storage space SU is configured to store the file F of the predetermined standard with the cover height L2 facing up and down, the plurality of files F are stored side by side on the bookshelf. As described above, a plurality of files F can be displayed with the back F1 facing inward.

  Since at least the lowermost drawer 13 has a storage space SD whose inner dimension in the depth direction corresponds to a multiple of the cover height L2 dimension of the file F with a predetermined standard, the storage space in the cover height L2 direction is stored. A plurality of predetermined standard files F can be stored side by side along the SD depth direction, and a number of files F can be stored efficiently. Further, since the storage space SD is configured to be able to store the file F of the predetermined standard with the cover width L1 direction thereof being directed up and down, the storage space SD is stored with the back F1 of the file F facing upward. obtain. The user using the desk can visually recognize the back F1 of the file F stored therein only by pulling out the drawer 13.

  Since the partition plate 16 that divides the storage spaces SU, SD of the drawers 12, 13 back and forth is formed by cutting off the upper corners on the inner side of the desk, it is obstructed when articles are put into and out of the drawers 12, 13. It is difficult to become and is preferable.

  The shelf 11 is provided with shelf support means 17 for supporting one end side of the shelf 5 arranged in the lower limb space of the desk on the inner side surface of the desk. Other items can be placed, and the lower limb space of the desk can also be used for storage.

  The desk in which the sleeve structure 1 described above is arranged on the sleeve portion is an easy-to-use one that allows articles to be easily put in and out. In particular, since the file F of a predetermined standard can be efficiently stored, it is extremely suitable for use in a recent office or the like.

  In addition, if a recess 7 is formed on the outer side surface of the casing 11, in other words, the outer side surface of the sleeve structure 1, if a recess 7 on which a finger can be hung is formed, this is used for carrying the desk. it can.

  The present invention is not limited to the embodiment described in detail above. First, the left sleeve structure 1 (the casing 11 thereof) in the above embodiment is fixed to the desk, but it does not prevent it from being removable from the desk like a wagon or cabinet.

  The sleeve structure 1 according to the present invention may be provided not on the left side of the desk but on the right side. The arrangement of the left sleeve structure 1 and the right sleeve structure 2 can be interchanged.

  The number of drawers included in the sleeve structure 1 is not limited to two, and may be three or more.

  In the sleeve structure 1 of the present embodiment, the dimension in the height direction of the upper drawer 12 and the dimension in the height direction of the lower drawer 13 are substantially the same, but they may be different dimensions. For example, in the S-type file F, the cover width L1 dimension is often smaller than the cover height L2 dimension. Therefore, when the S-type file F is to be stored, it can be considered that the height of the lower drawer 13 is made smaller.

  Of course, the storage spaces SU and SD included in the drawers 12 and 13 of the left sleeve structure 1, the first storage space S1 and the second storage space S2 included in the right sleeve structure 2 do not necessarily store A4 version files. It is not necessarily configured as. Files of various standards such as B5 size files, receipts, and files for binding invoices are distributed in the market, and it is naturally considered that the files can be optimized to files other than the A4 version. That is, the internal size of the storage space is not uniquely limited, and is changed according to the standard of the file to be stored.

  Other specific configurations of the respective parts are not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

The perspective view which shows the desk in one Embodiment of this invention. The front sectional view showing the desk in the embodiment. The sectional side view which shows a left sleeve structure. The perspective view which shows the drawer of the upper stage. The perspective view which shows the lower drawer. The sectional side view which shows the shelf support means provided in a left sleeve structure. The plane sectional view showing the right sleeve structure. The sectional side view which shows a right sleeve structure. The perspective view which shows a storage.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Sleeve structure 11 ... Housing | casing 12, 13 ... Drawer 122,132 ... Bottom wall 123, 133 ... Outer side wall 124, 134 ... Inner side wall SU SD ... Storage space F ... File L1 ... Cover width L2 ... Cover height

Claims (9)

A sleeve structure that includes a plurality of drawers and a housing that houses these drawers, and is arranged on a sleeve portion of a desk,
At least the uppermost drawer has an opening from the inside to the top of the desk ,
The drawer includes a bottom plate and a pair of side plates rising from both side edges of the bottom plate, and has a storage space between both side plates, and the height dimension of the inner side plate in the desk is the same as that of the outer side plate in the desk. A sleeve structure that is set lower than the height dimension . At least the uppermost drawer is sleeve structure according to claim 1, further comprising a receiving space inside dimension in the width direction corresponds to the cover width of a predetermined standard file. The sleeve structure according to claim 2 , wherein the storage space is configured to store the file of the predetermined standard in a state in which a cover height direction is directed up and down. The sleeve structure according to claim 1, 2 or 3, wherein at least the lowermost drawer has a storage space whose inner dimension in the depth direction corresponds to a plurality of times the cover height dimension of a predetermined standard file. The sleeve structure according to claim 4 , wherein the storage space is configured to be able to store the file of the predetermined standard in a state where the cover width direction is directed up and down. Further comprising a partition plate provided to partition the storage space of the drawer into the front and rear,
The sleeve structure according to claim 1, 2, 3, 4 or 5 , wherein the partition plate is formed by cutting off an upper corner portion on an inner side of the desk. Wherein the side surface of the inner side in the desk of the housing, according to claim 1, 2, 3, 4 is provided with a shelf support means for supporting one end of the shelf that is disposed leg space of the desk or The sleeve structure according to 6 . A desk comprising the sleeve structure according to claim 1, 2, 3, 4, 5, 6 or 7 arranged on a sleeve portion. The desk according to claim 8, wherein a concave portion on which a finger can be hung is formed on an outer side surface of the casing.

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