JP4583951B2 - Desk with lid on top plate - Google Patents

Description

  The present invention relates to a desk provided with a top plate, and a lid that can move between a closed position that covers a device placed on the top plate and an open position where the top of the device is opened.

  On a conventional desk or table, a lid (lid body) 2 capable of closing an upper portion of the deck 1 so as to cover an article placed on the deck (top plate) 1 has a hinge 11 at the rear end. The lid 2 is opened and closed by rotating around the hinge 11. One end of a foldable arm 15 is pivotally attached to the lid 2, and the other end of the arm is pivotally attached to a side plate 16 of the desk.

  With such a configuration, when the lid 2 is opened, the support base 3 is raised to the surface of the deck 1 by the link members 8 and 9, and the arm 15 extends linearly so that the lid 2 can be rotated backward. The structure is such that an article or the like can be placed on the support base 15 in the deck with the lid 2 opened. (For example, refer to Patent Document 1).

  In recent years, two link members 4 and 5 are paralleled in the front-rear direction to form a parallel link, and the lid 1 and the top plate 2 are pivotally attached to one end and the other end, respectively, so that the lid 1 by the top plate 2 is used. When the lid 1 is opened and the lid 1 is opened, the lid 1 is positioned slightly behind the top plate 2 so that the space on the top plate 2 does not give a feeling of pressure by the lid 1. is there. (For example, refer to Patent Document 2).

Japanese Utility Model Publication No. 50-90803 (pages 4 to 5, FIGS. 4 and 5) Japanese Patent Laying-Open No. 2005-6959 (paragraphs 0018 to 0024, FIGS. 1 and 2)

  However, in Patent Document 1, most of the arm 15 is exposed to the outside when the lid is opened, and the arm 15 is folded when the lid 2 is closed with respect to the deck 1. There was a risk of pinching.

  Similarly, in Patent Document 2, most of the portions of the parallel links 4 and 5 that support the lid 1 are exposed to the outside, and the front and rear link members are closed when the lid 1 is closed to the top plate 2. There was also a risk of the fingers being caught in the gaps of 4 and 5.

  The present invention has been made paying attention to such problems. When the lid is opened, the space on the top plate is not given a feeling of pressure by the lid, and when the lid is opened and closed. It is an object of the present invention to provide a desk having a lid on a top plate that can avoid the danger of pinching a user's finger as much as possible.

In order to solve the above problems, a desk provided with a lid on the top plate according to claim 1 of the present invention includes a top plate, a closed position that covers a device placed on the top plate, and the device. And a lid that is movable between an open position where the upper part of the lid is opened, and two links are provided on the inner surface of the plate member that hangs down from the left and right sides of the lid. One end of each member is pivotally mounted at a position separated from each other in the front-rear direction, and the other end of each of the link members is respectively attached to the inner surface of the base that is erected on the left and right sides of the rear portion of the top plate. It is assumed that it is pivotally attached and attached at a position separated from the front and rear, the plate member is positioned slightly outward from the base portion in a top view, and the lid body is opened and closed from the closed position to the open position. also in the process for, the one end portion that is pivotally attached to the link members is the plate The other end, which is axially mounted is characterized in that so as to be covered from the outside by the base portion.
According to this feature, since the lid body is opened using two link members, the lid body can be positioned slightly behind the top plate when the lid body is opened. It is released from the feeling of pressure by the lid. In addition, by placing the plate material close to the outside of the base portion in a top view, the risk of fingers being caught between the plate material and the base portion can be avoided, and the two link members are pivotally attached to the inner surface side of the plate material and the base portion. Therefore, when the lid body is opened and closed, both the link members can be almost covered with the plate material and the base portion, and it is possible to avoid pinching fingers between the link members. Moreover, since the base portion and the link member are shielded by the plate material at the closed position of the lid body, the appearance from the outside is good, and if a locking device is attached to the lid body, tampering from the outside can be prevented.

A desk provided with a lid on the top plate according to claim 2 of the present invention is a desk provided with a lid on the top plate according to claim 1, and the lower end of the plate material at the closed position of the lid. The portion is located above the top surface of the top plate by a predetermined distance.
According to this feature, a gap of a predetermined interval is formed between the lower end of the plate material and the top surface of the top plate, and by inserting a fingertip from this gap, the lid can be easily opened and closed, When the lid is closed, it is possible to avoid a situation in which the finger is caught between the lower end portion of the plate material and the top surface of the top plate and injured.

A desk provided with a lid on the top plate according to claim 3 of the present invention is a desk provided with a lid on the top plate according to claim 2, wherein the front side of the plate is inward A handle is formed in the longitudinal direction toward the front .
According to this feature, when the user opens the lid, the user lifts the handle with his / her finger, so that the burden on the finger due to the weight of the lid can be reduced, and the lid can be opened more easily. Can be made.

A desk provided with a lid on the top plate according to claim 4 of the present invention is a desk provided with a lid on the top plate according to any one of claims 1 to 3, wherein the desk is provided inward of the base. A support piece is provided, and the other end portions of the two links are pivotally attached between the support piece and the base portion.
According to this feature, the other end portions of both link members are stably pivotally mounted between the both side surfaces of the base portion and the support piece, so that the axial strength of both link members can be increased.

A desk provided with a lid on the top plate according to claim 5 of the present invention is a desk provided with a lid on the top plate according to claim 4, wherein the support members are pivotally attached to both link members. A hydraulic damper is provided on a surface opposite to the surface to be mounted, and the hydraulic damper is supported by a shaft portion on which at least one of the two link members is attached.
According to this feature, it is possible to prevent a sudden opening / closing operation of the lid body by the hydraulic damper, and it is possible to easily attach the hydraulic damper by using the shaft portion for attaching one of the link members.

A desk provided with a lid on the top plate according to claim 6 of the present invention is a desk provided with a lid on the top plate according to any one of claims 1 to 5, wherein the lid is in an open position. Is characterized in that it is stopped in a state where it is tilted slightly forward.
According to this feature, the lid is tilted slightly forward so that contact between the person on the back side of the desk and the lid is avoided as much as possible, and is placed on the top plate by the forward tilted lid. A part of light from above entering the display panel of the device can be shielded. For example, when the device is a notebook personal computer, the display panel can be more easily seen.

  Examples of the present invention will be described below.

FIG. 1 is a perspective view showing an overall front view in which a part of a lid is opened on a top plate of a desk according to an embodiment of the present invention, and FIG. 2 is a back view in which all lids of the desk are closed. It is a perspective view which shows the whole image,
FIG. 3A is a perspective view showing a process of attaching each member such as a rear link member and a hydraulic damper to a support piece attached to the base, and FIG. 3B shows a support piece to which each member is attached. FIG. 4A is a perspective view showing a process of attaching the front link member to the base, and FIG. 4A is a perspective view showing an assembly process of the base and the plate member to which the support piece and the link member are attached, and FIG. These are the principal part expanded sectional views of the BB line of Drawing 4 (a) which attached the board material to the base, and Drawing 5 is a sectional side view of the AA line of Drawing 2 showing the closed state of a lid. FIG. 6 is a side sectional view showing an open state of the lid.

  The desk according to the present invention is mainly installed in a specialized classroom in a school where a laptop computer or the like is permanently installed. When the classroom is not in use, the desk is closed by the device installed on the top of the desk. By locking this lid to the top board, it is used for the purpose of preventing theft of equipment and damage from the outside.

  As shown in FIG. 1, the desk 1 is mainly composed of a pair of leg posts 2, 2 ', a top plate 3 supported and fixed at the upper ends of the leg posts 2, 2', and a pair of leg posts 2, 2 '. And the three lid bodies 4 arranged in parallel along the length direction of the upper surface of the top plate 3. The top plate 3 is partitioned into three by these three lids 4, and the device 30 (see FIGS. 5 and 6) can be placed in each partition.

  Hereinafter, in the description of the present embodiment, the front side of the desk 1 is the front, the back side of the desk 1 is the rear, the one pedestal 2 side is the left, and the other pedestal 2 'side is the right. explain. In addition, since the structure of the three cover bodies 4 is the same structure, in a present Example, the structure of one cover body 4 is demonstrated below and description of the other cover bodies 4 and 4 is omitted.

  Accordingly, the lid 4 will be described. The lid 4 includes a lid 4e that constitutes the upper surface, a front plate 4a that supports the front end of the lower surface of the lid 4e, and plates 15 and 15 provided on the left and right of the lower surface of the lid 4e. And an engagement piece 4b having a substantially inverted L-shaped cross section provided on the back side of the front plate 4a. One end side of the front link member 10 and the rear link member 11, which will be described in detail later, is pivotally supported at the rear end portions of the plate members 15, 15, and is erected on the top plate 3 at the upper rear side. The other end sides of both link members 10 and 11 are pivotally supported by bases 5 and 5 which will be described later. The lid 4 is configured to be able to turn through both the link members 10 and 11.

  A wiring hole 3a penetrating up and down is formed in the rear of the top plate 3 for each section, and a signal cable such as a LAN for transmitting and receiving various signals such as a locking signal and an unlocking signal, an electric cord for supplying power, etc. It is possible to connect to a device placed on the top board 3 by inserting the communication cable 26 including the power feeding cable. The cover body 20 can be attached from the front side of the desk 1 so as to shield a part of the wiring hole 3a and the base portion 5 from the outside, and the wiring hole is formed through a notch groove 20a formed in the cover body 20. A communication cable 26 from 3 a is wired on the top plate 3.

  A key hole 3b is provided for each section at the front end of the top plate 3, and an engagement hole 4c slightly larger than the key hole 3b is formed at the center of the lower end of the engagement piece 4b of the lid 4. When the lid 4 is closed, the key hole 3b and the engagement hole 4c are overlapped at substantially the same position (see FIG. 5). A key unit 22 is provided on the lower surface of the front end portion of the top plate 3, and the locking / unlocking / unlocking (including the locking / unlocking lamp 22b, the full-locking lamp 22a, and the electric actuator that locks the lid 4 so as not to be opened from the front right side) (Hereinafter referred to as “locking / unlocking”) 21.

  As shown in FIG. 2, the rear frame 19 is erected slightly obliquely forward from the rear position on the top surface of the top plate 3, and even when the lid 4 is closed by the rear frame 19, The rear side of the body 4 is not open to the outside. At the closed position of the lid 4, the outer periphery of the device 30 is surrounded by the top plate 3, the lid member 4 e, the front plate 4 a, the engagement piece 4 b, the rear frame 19, and the plate members 15, 15, so that the device 30 is externally provided. The device 30 cannot be taken out unless the cover 4 can be opened upward. Further, at the closed position of the lid 4, the front link member 10 and the rear link member 11 are shielded from the outside by the plate material 15 and the base portion 5.

  Furthermore, by supporting the engagement pieces 4b provided on the back surface of the front plate 4a on the top plate so that the top surface of the cover member 4e is substantially horizontal with respect to the top surface of the top plate 3, The lid member 4e can be used as a substitute for the top board 3. In addition, a locking / unlocking lamp 19b and a total locking lamp 19a are provided at the left end of the back frame 19 corresponding to the lid 4 at the left position so that the locking / unlocking state can be confirmed from the back side.

  Next, the connection structure of the base 5 and the front link member 10 and the rear link member 11 and the plate member 15 will be described in detail with reference to FIGS. 3 and 4. First, as shown in FIG. 3A, the U-shaped base 5 is provided with a bottom 5e and left and right side portions 5d and 5d ', and the bottom 5e has bolt holes 5b and 5b' penetrating vertically. The side surface portions 5d and 5d ′ are formed with through holes 5a and 5a ′ penetrating left and right, respectively.

  The support piece 6 provided on the inner side of the base portion 5 includes a bottom portion 6e and a side surface portion 6d. Bolt holes 6b and 6b 'penetrating vertically are formed in the bottom portion 6e, and the side surface portion 6d has left and right sides. Through-holes 6a and 6a ′ are formed in front and rear, and screw holes 6c and 6c ′ are formed in the vicinity of the through-hole 6a ′. A hydraulic damper 9 can be attached to the side surface portion 6d. After the rotating shaft 9a provided in the hydraulic damper 9 is passed through the through hole 6a ′, two screws 14 are screwed on the hydraulic damper 9. It is fixed by screwing into the screw holes 6c and 6c ′ through the holes 9b and 9b.

  A shaft hole 11 b ′ formed in the other end portion 11 b of the rear link member 11 is fitted to the rotating shaft 9 a of the hydraulic damper 9 via a washer 12. A shaft hole 11 a ′ is formed in one end portion 11 a of the rear link member 11.

  Next, as shown in FIG. 3B, in order to attach the support piece 6 to the base portion 5, first, the hydraulic damper 9 is attached to the support piece 6 with the screw 14, and the rotating shaft 9 a is connected to the rear link via the washer 12. The member 11 is fitted into the shaft hole 11a to be integrated. Next, in a state where the receiving portion 8a of the support receiving member 8 is pivotally attached to the through hole 5a and the through hole 6a and the receiving portion 8a are positioned, the male screw portion 7a of the support shaft 7 is inserted from the through hole 5a of the base portion 5. A shaft hole 10 b ′ formed in the other end portion 10 b of the front link member 10 and a through hole 6 a of the support piece 6 through a washer 12 and screwed with a female screw portion formed in the receiving portion 8 a of the support receiving member 8. . Finally, the support piece 6 is attached to the base 5 by screwing the two bolts 13 into the top plate 3 while passing through the bolt holes 5b and 5b 'via the bolt holes 6b and 6b', respectively.

  At this time, the bearing portion 7b of the support shaft 7 can pivotally support the other end portion 10b of the front link member 10 through the shaft hole 10b '. A shaft hole 10a ′ is formed at one end 10a of the front link member 10, and a concave groove 10c is formed at an upper position of the other end 10b to avoid interference with the rear link member 11. Yes.

  As shown in FIG. 4A, in the closed position of the lid body 4, the one end portion 11a of the rear link member 11 is housed in the concave groove 10c of the front link member 10, The positions of the shaft holes 10 a ′ and 11 a ′ of both link members 10 and 11 are kept substantially horizontal with respect to the top plate 3. From the rear side of the inner surface 15f of the plate member 15, the front pin 15a and the rear pin 15b protrude forward and backward at the same interval width as the separation width of the shaft holes 10a ′ and 11a ′ of the link members 10 and 11, respectively. It is installed.

  By inserting the front pin 15a through the shaft hole 10a ′ and the rear pin 15b through the shaft hole 11a ′, the link members 10 and 11 can be attached to the plate member 15. The plate 15 is connected to the base 5 so as to be rotatable. In front of the inner side surface 15f of the plate member 15, a handle portion 15d is formed in the longitudinal direction toward the inside, and is used when the lid 4 is opened. Further, a support portion 15e for supporting the lid member 4e is formed at the upper rear end of the plate member 15 inward.

  Next, the relationship between the base 5 and the plate 15 in a state in which the lid 4 is closed on the top plate 3 will be described. As shown in FIG. 4B, the inner side 15 f of the plate 15 is a side 5 d ′ of the base 5. In a state of being close to each other, it is positioned slightly outward, and the base 5 is shielded from the outside. Further, the other end portions 10b and 11b of the front link member 10 and the rear link member 11, the hydraulic damper 9, the support receiving member 8 and the like are shielded from the surroundings by the side surface portions 5d and 5d 'of the base portion 5.

  By providing the support piece 6 in the base portion 5, the attachment interval width of the front link member 10 and the rear link member 11 is narrowed by the side surface portion 6 d, and to the left and right of both link members 10, 11 when the lid body 4 is opened and closed. It has a configuration that suppresses the blur width of the as much as possible. In addition, the other end portions 10b and 11b of the link members 10 and 11 can be stably attached between the side surface portion 5d 'of the base portion 5 and both side surfaces of the support piece 6d.

  In this way, both link members 10 and 11 are pivotally attached to the inner surface side of the plate member 15 and the base portion 5, the plate member 15 is positioned outside the base portion 5, and the interval width between the base portion 5 and the plate member 15 is made close. As a result, the gap width generated between the plate material 15 and the base portion 5 can be made as narrow as possible, so that fingers are prevented from being caught between the plate material 15 and the base portion 5 when the lid 4 is opened and closed. Since both the link members 10 and 11 can be almost shielded from the outside, it is possible to avoid pinching fingers between the link members 10 and 11. Moreover, since the base 5 and the link members 10 and 11 are shielded by the plate material 15 at the closed position of the lid 4, the appearance from the outside is good, and if a locking device is attached to the lid 4, mischief from the outside, etc. Can also be prevented.

  Further, the other end portion 10 b of the front link member 10 is stably supported by the support shaft 7 and the support receiving member 8 that are pivotally supported between the left and right side surface portions 5 d and 5 d ′, and the other end of the rear link member 11. Since the portion 11b is fitted to the rotation shaft 9a of the hydraulic damper 9, the rotation speed of the rear link member 11, that is, the opening / closing movement of the lid 4 can have a damping action. In particular, by using a hydraulic damper 9 that greatly restricts the moving speed of the lid body 4 in the closing direction, the lid body can be quickly opened, and the lid body can be slowly placed on the top plate 4 while the brake is applied. Can do.

  Next, the opening / closing movement of the lid 4 will be specifically described with reference to FIGS. 5 and 6. First, as shown in FIG. 5, in a state where the lid 4 is closed on the top plate 3, an engagement piece 4 b fixed to the back of the front plate 4 a with screws or the like is provided on the key unit 22. 21 is held unopenable.

  The locking / unlocking 21 has a communication cable 26 including a signal cable for transmitting and receiving various signals such as a locking signal and an unlocking signal, and a power supply cable for supplying power, and a relay device 25 provided inside the pedestal 2. Are connected to the relay device 25 via the communication cable 26, and are also connected to the relay device 25 via the communication cable 26 to lock and unlock the locking and unlocking 21 respectively. Lighting control is performed based on this (see FIG. 1). The full lock lamp 19a and the locking / unlocking lamp 19b provided on the back frame 19 are also connected to the relay device 25 via the communication cable 26 and controlled to be lit (not shown) (see FIG. 2).

  This relay device 25 is not particularly shown in the present embodiment, but is connected to a central control device provided in the classroom via a communication cable 26, and various signals such as a lock signal and an unlock signal are connected to the relay device 25. When the lid 4 is in the closed state, the electric actuator 21b in the lock / unlock 21 is driven so that the hook lock 21a is engaged with the engagement piece 4b and the lid 4 is locked so as not to be opened. Become.

  At the closed position of the lid 4, the lower end 15 c of the plate 15 is attached to the lid 4 e in advance so that the position of the lower end 15 c of the plate 15 is higher than the upper surface of the top plate 3. It is possible to easily open the lid 3 by inserting a finger into the gap. In addition, when the lid 4 is closed, it is possible to avoid a situation in which a finger is caught between the lower end portion of the plate member 15 and the top surface of the top plate 3 to be injured.

  In addition, the predetermined space | interval width of the board | plate material 15 and the top plate 3 is formed shorter than the thickness width of the apparatus 30 mounted on the top board 3, and it has the structure which cannot extract the apparatus 30 from the outside. Therefore, the device 30 is prevented from being stolen in the locked state of the closed position of the lid 4.

  In order to open the closed lid body 4, first, after the kama lock 21 a is unlocked from the engagement piece 4 b by the control of the locking / unlocking 21 by the relay device 25, a finger is placed between the plate material 15 and the top plate 3. Then, the finger 4 is further bent to be brought into contact with the handle portion 15d, and the lid body 4 is lifted using the handle portion 15d. By using the handle portion 15d, the pressure on the finger due to the weight of the lid 4 is dispersed, the burden on the user can be reduced, and the lid 3 can be opened and closed more easily. In addition, if the handle part is formed in the cover body 4, it is not necessary to use the handle part 15d of the board | plate material 15 dare.

  As the lid body 4 is lifted, the other end portion 10b of the front link member 10 starts to rotate about the bearing portion 7b, and the one end portion 10a gradually rotates in the direction indicated by the arrow. At the same time, the other end portion 11b of the rear link member 11 rotates about the rotation shaft 9a, and at the same time, the one end portion 11a moves in the direction indicated by the arrow.

  Then, as shown in FIG. 6, the lid 4 can be opened and stopped in a state where the lid 4 is slightly tilted forward by the rotation limiting means. Any known means can be adopted as the rotation limiting means. For example, a rotation restricting portion may be formed on one of the link members 10 and 11, or a hydraulic pressure having a rotation position restriction may be formed. A damper may be used, or an abutting material that abuts the top plate at the open position may be provided on the rear surface side of the lid 4.

  In this way, by making the opening position of the lid 4 slightly tilted forward toward the front of the top 3, contact between the person located on the back side of the desk 1 and the lid 4 is avoided as much as possible. In addition, a part of the light from above entering the display panel of the device placed on the top plate can be shielded by the tilted lid, for example, when the device is a notebook computer, There is an effect that is easier to see.

  In addition, by using the two link members 10 and 11, the lid can be positioned slightly behind the top plate when the lid is opened, and is released from the feeling of pressure by the lid in the space on the top plate. Is done.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. For example, in the above-described embodiment, by providing the support piece 6 in the base portion 5, both link members 10 and 11 are pivotally mounted between the side surface portions 5 d ′ and 6 d, but the present invention is limited to this. Instead, the link members 10 and 11 may be simply attached to the inner surface of the base 5 without providing support pieces.

  Moreover, in the said Example, although the handle part was provided in the inner surface side of the board | plate material 15, this invention is not limited to this, You may make it form a handle part in the outer surface of the board | plate material 15. FIG. .

  Moreover, in the said Example, although the hydraulic damper 9 was attached to the rear link member 11 side and the obstruction | occlusion speed of the cover body 4 was restrict | limited, you may make it provide the hydraulic damper 9 in the front link member 10 side. good. Further, an air damper or a spring type damper may be used instead of the hydraulic damper.

  Furthermore, from the viewpoint of strengthening the strength of the base 5 and strengthening the support of the front link member 10, in the above embodiment, the base has a U-shape with side portions 5d and 5d 'on the left and right. As long as the link members 10 and 11 can be securely attached to the shaft, any shape may be used. For example, an L shape or an I shape may be used.

It is a perspective view which shows the front whole image by which a part of cover body was open | released on the top plate of the desk in the Example of this invention. It is a perspective view which shows the back whole image with which all the cover bodies of the desk were closed. (A) is a perspective view which shows the process which attaches each member, such as a rear link member and a hydraulic damper, to the support piece attached to a base, (b) is the support piece and front link member to which each member was attached. It is a perspective view which shows the process of attaching to a base. (A) is a perspective view which shows the assembly process of the base part and board | plate material to which the support piece and the link member were attached, (b) is a principal part expansion of the BB line of (a) which assembled | attached the board | plate material to the base part. It is sectional drawing. It is a sectional side view of the AA line of FIG. 2 which shows the closed state of a cover body. It is a sectional side view which shows the open state of a cover body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Desk 3 Top plate 3a Wiring hole 3b Key hole 4 Cover body 4e Cover material 5 Base part 5a, 5a 'Through-hole 5b, 5b' Bolt hole 5d, 5d 'Side surface part 5e Bottom part 6 Support piece 6a, 6a' Through-hole 6b, 6b 'Bolt hole 6c, 6c' Screw hole 6d Side face part 6e Bottom part 7 Support shaft 7a Male thread part 7b Bearing part 8 Support receiving member 8a Receiving part 8b Tip part 9 Hydraulic damper 9a Rotating shaft 9b Screw hole 10 Front link member 10a one end 10a 'shaft hole 10b other end 10b' shaft hole 10c concave groove 11 rear link member 11a one end 11a 'shaft hole 11b other end 11b' shaft hole 15 plate material 15a front pin 15b rear pin 15c lower end 15d Handle portion 15e Support portion 15f Inner side surface 19 Back frame 20 Cover body 30 Device (PC, etc.)

Claims (6)

In a desk comprising a top plate, a closed position that covers a device placed on the top plate, and a cover body that can move between an open position where the top of the device is opened, the movement of the lid Means are pivotally attached to the inner side surface of the plate member hanging from the left and right side portions of the lid so that one end portions of the two link members can be pivoted at positions separated from each other in the front-rear direction. It is assumed that the other end portions of the link members are pivotally attached to the inner side surface of the base portion erected on the side portion at positions spaced apart from each other in the front-rear direction, and the plate material is viewed from above the base portion. In the process of slightly opening and closing the lid body from the closed position to the open position , the other end where the one end portions of the two link members are pivotally attached by the plate material are also attached. and wherein the part is to be covered from the outside by the base portion Desk with a lid on the top plate that.   The desk provided with a lid on the top plate according to claim 1, wherein a lower end portion of the plate material is positioned above the top surface of the top plate by a predetermined distance at the closed position of the lid. The desk provided with the cover body on the top plate according to claim 2, wherein a handle portion is formed in the front and rear longitudinal direction toward the inside in front of the inner surface of the plate material.   The top plate according to any one of claims 1 to 3, wherein a support piece is provided on an inner side of the base portion, and the other end portions of the two links are pivotally attached between the support piece and the base portion. Desk provided.   5. A hydraulic damper is provided on a surface of the support piece opposite to a surface on which the two link members are axially attached, and the hydraulic damper is supported by at least one of the two axially attached shaft portions of the link members. A desk with a lid on the top plate described.   The desk provided with the lid on the top plate according to any one of claims 1 to 5, wherein the lid is stopped in a state where the open position of the lid is slightly inclined forward.

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