JP4544115B2 - Floor-standing tatami mat - Google Patents

Description

  The present invention relates to a floor-standing tatami stand, and more particularly, to a floor-standing tatami stand that is detachably attached to a top surface and can be pulled out and put out from a front opening.

  Conventionally, a floor-standing tatami stand whose inside is a storage space is known from Patent Document 1.

  The floor-standing tatami table disclosed in Patent Document 1 is configured by placing a lid body having a tatami section on an upper surface portion on a box body. There are two types of boxes: hatch boxes and drawer boxes.

  The hatch box is a box whose upper surface is an upper opening, and the lid that opens and closes the upper opening of the hatch box is opened to allow the stored items to be taken in and out. By closing, a person can sit or lie down on a lid having a tatami part on the upper surface.

  A lid with a tatami mat on the upper surface is placed on the drawer box so that people can sit or lie down on the lid with the tatami mat on the upper surface. In addition, a front opening is provided on the front surface, and a drawer can be taken in and out from the front opening.

  The drawer box is composed of a rear plate, left and right side plates, and a front plate having a shorter vertical length than the rear plate and the side plate, and a lower portion of the front plate having a short vertical length allows a drawer with casters to be taken in and out. It is a front opening for. However, in this conventional example, there is no bottom plate for taking in and out the drawer with a caster, and the lid is only detachably mounted on the drawer box, so the front plate, If only the framework of the rear plate and the left and right side plates is used, the shape cannot be maintained in a rectangular shape in plan view, and there is a risk of deformation into a parallelogram.

  Therefore, in the process leading to the present invention, the inventor provided a groove at a position that does not interfere with the withdrawal of the upper inner surface of each of the front plate, the rear plate, and the left and right side plates. By inserting and fixing the outer peripheral edge of the middle plate with an adhesive in the groove provided on the upper surface of each inner surface, the front plate, the rear plate, and the left and right side plates are framed. It was considered to prevent the plate from being deformed into a parallelogram by maintaining a rectangular shape in plan view.

  However, when the lid is removed, the middle plate is provided so as to close the upper opening of the drawer box, so that a person may accidentally sit on or sit on the middle plate. However, it has been found that the middle plate cannot use a thick plate material in terms of cost, and if the person gets on or sits down, the outer peripheral edge of the middle plate may come off the groove. Once the intermediate plate is removed, the amateur cannot fit it back into the groove unless the drawer box is disassembled.

It should be noted that the lid that has the tatami mat on the upper surface of the drawer box is made detachable in order to replace it when the tatami mat on the upper surface of the lid is damaged, or the drawer box and hatch. When the drawer box is arranged side by side so that the drawer box is located at the front and the hatch box is located at the rear, the drawer box located at the front of the front and rear adjacent lids Move the front cover to the front or remove it to expose the front end face of the hatch box cover located on the rear side, and then place your finger on the front end face of the hatch cover. This is because the lid can be opened.
JP 2004-324111 A

  The present invention was invented in view of the above-described conventional problems, and the drawer box can be kept in a rectangular shape in a plan view with a simple configuration, and when the lid is opened, it is kept in a rectangular shape. It is an object of the present invention to provide a floor-standing tatami stand that prevents the outer edge of the middle frame plate from coming out of the groove so that people cannot accidentally get on or sit on the middle frame plate for It is.

In order to solve the above-described problems, the floor-standing tatami mat according to the present invention includes a rear plate 5b, left and right side plates 5c and 5d, and a front plate 5a whose vertical length is shorter than that of the rear plate 5b and the side plates 5c and 5d. At the same time, the outer peripheral edge of the middle frame plate 10 is fitted and fixed to the grooves 14 provided in the upper portions of the inner surfaces of the front plate 5a, the rear plate 5b, and the left and right side plates 5c, 5d, and the upper and lower sides are opened. In addition, a drawer box 3a is formed in which the lower side of the front plate 5a becomes the front opening 1, and the middle frame plate 10 is provided with an opening 15 in the central portion, leaving only the outer peripheral portion. The front opening 1 of the drawer box 3a The drawer 4 with the casters 4a is detachably stored in the drawer box 3a, and the lid 2 having the upper surface portion is detachably mounted on the drawer box 3a. The opening 15 formed in the center part leaving only the part is the upper opening 16 of the drawer box 3a. Facing down, in a state in which the cover body is removed 2, it is characterized in that the upper opening 16 and the opening 15 is in communication with the vertical.

By adopting such a configuration, the front plate 5a, the rear plate 5b, and the left and right sides of the middle frame plate 10 are provided in spite of the structure in which the bottom plate is not provided so that the drawer 4 with casters can be smoothly inserted and removed. The drawer box 3a constructed by framing the side plates 5c and 5d can be held in a rectangular shape in a plan view and can be prevented from being deformed into a parallelogram, ensuring structural strength as a floor-standing tatami stand. Even if a person sits on the lid 2 or lies down, there is no problem. In addition, when the cover plate 2 is removed, the middle frame plate 10 is exposed at a position immediately below the upper opening 16 of the drawer box 3a. However, the middle frame plate 10 is provided with an opening 15 at the central portion, leaving only the outer peripheral portion. Since the opening 15 faces the upper opening 16 of the drawer box 3a in the vertical direction and the cover 2 is removed, the upper opening 16 and the opening 15 communicate with each other in the vertical direction. Even if a person puts a hand on the outer periphery of the middle frame plate 10 and pushes it downward, the inner end side of the pushed middle frame plate 10 is not By slightly bending downward, the hand slips and falls into the opening 15. Therefore, even if a person gets on the middle frame plate 10 or puts a hand, the outer peripheral end portion of the middle frame plate 10 does not come off the groove 14.

  The present invention can hold the rectangular shape of the drawer box in a plan view by the middle frame plate, and even if the middle frame plate is exposed with the lid removed, a person accidentally gets on or sits on the middle frame plate. The outer peripheral edge of the middle frame plate does not fall out of the groove.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. As the box 3 for constituting the tatami stand, there are two types, a drawer box 3a and a hatch box 3b.

  As shown in FIGS. 1 to 4, the drawer box 3a is constructed by assembling a front plate 5a, a rear plate 5b, left and right side plates 5c, 5d, and an inner frame plate 10.

  The vertical lengths of the rear plate 5b and the left and right side plates 5c, 5d are the same, and the vertical length of the front plate 5a is shorter than the vertical lengths of the rear plate 5b and the left and right side plates 5c, 5d.

In assembling the drawer box 3a, first, as shown in FIG. 3 (a), the rear plate 5b is installed with its front surface (inner surface) facing upward. Dowel holes 12 are provided at both left and right ends of the front surface of the rear plate 5b. Next, the left and right side plates 5c and 5d are erected with their front ends up, and the dowels 13 projecting from the rear end surface are applied to the dowel holes 12 provided at both ends of the rear plate 5b. Fit each one. Next, as shown in FIG. 3 (b), the inner frame with the adhesive applied to the grooves 14 provided slightly below the inner surfaces of the left and right side plates 5c, 5d and the upper end of the front surface of the side surface of the rear plate 5b. After the plate 10, the edge portions of the left and right sides are fitted into the dowels 13 provided above the front end surfaces of the left and right side plates 5c and 5d, and provided at both ends of the rear surface of the front plate 5a having a short vertical length. The dowel hole 12 is fitted with the adhesive applied, and the front edge of the middle frame plate 10 is fitted with the adhesive applied to the groove 14 provided on the rear surface of the front plate 5a. The left and right side plates 5c and 5d are abutted against the left and right end portions of the front surface, and the left and right end portions of the rear surface of the front plate 5a are abutted against the front end surfaces of the left and right side plates 5c and 5d. In this temporarily assembled state, the right and left side plates 5c are inserted by inserting the screw tool 6 from both ends of the rear surface of the rear plate 5b. with fixed screwed to the rear end portion of d, the side plate 5c of the left and right from both ends of the front surface of the front plate 5a by inserting the screw member 6, by fixing by screwing to the front end portion of 5d, FIG. 3 (c) As shown in FIG. 2, the drawer frame 3a having the middle frame plate 10 attached to the upper portion and the front opening 1 on the front surface is assembled.

  The middle frame plate 10 is open except for the outer peripheral portion, and the opening 15 of the middle frame plate 10 is an opening that is slightly smaller than the upper opening 16 of the drawer box 3a and is opposed vertically.

  Thus, when forming the drawer box 3a by framing the front plate 5a, the rear plate 5b, and the left and right side plates 5c, 5d, the upper ends of the inner surfaces of the front plate 5a, the rear plate 5b, and the left and right side plates 5c, 5d are used. Although the outer peripheral edge of the middle frame plate 10 is fitted and fixed to the groove 14 formed at a slightly lower position via an adhesive, the bottom plate is not provided for taking in and out the drawer 4 with casters 4a. The drawer box 3a is held in a rectangular shape in plan view by the middle frame plate 10, so that it does not deform into a parallelogram even when an external force is applied.

  A drawer stopper 7 is arranged at a corner formed by the rear plate 5b and the left and right side plates 5c, 5d inside the drawer box 3a, and the drawer stopper 7 is fixed to the left and right side plates 5c, 5d by screws 8. . The screw 8 is driven in a direction orthogonal to the left and right side plates 5c and 5d.

  As shown in FIG. 4, vertical grooves 17 are provided at the corners of the assembled drawer box 3a. In the embodiment shown in the accompanying drawings, vertical grooves 17 are provided in the vertical direction near the end portions on the outer surface side of the front plate 5a and the rear plate 5b, and the end portions and end surfaces of the inner surfaces of the front plate 5a and the rear plate 5b are further provided. An L-shaped paragraph portion is provided in a vertical direction at a corner portion formed by the above and a vertical groove 17 is formed by the L-shaped paragraph portion and the end surfaces of the left and right side plates 5c, 5d adjacent to each other.

  The corner cover member 18 that covers the protruding corner portion of the drawer box 3a is made of synthetic resin and has elasticity. As shown in FIG. 13, the inner surface side of both side pieces 19 having a substantially L-shaped cross section. Engaging protrusions 20 are provided at the respective front end portions, and the angle formed between the front end portions of the side pieces 19 is less than 90 ° in the state before the corner cover member 18 is attached. Then, with the corner cover member 18 elastically expanded so as to have an opening angle of 90 °, both the protruding protrusions 20 are inserted into the vertical grooves 17 from above, so that the protruding corner portion of the drawer box 3a is provided. The corner cover member 18 is attached so as to protrude outward, and the side cover of the front plate 5a, the side plate of the rear plate 5b, and the screw 6 are covered with the corner cover member 18 so that the appearance is improved. This eliminates the need for a separate decorative side plate as in the prior art.

  The lid 2 that can freely open and close the upper opening 16 of the assembled drawer box 3a is as shown in FIG. 1 (b), and the slip prevention leg 21 is located at a position slightly inward from the four corners of the back surface. The rear surface is projected downward and covers the upper opening 1 of the assembled drawer box 3a with a lid 2 and the periphery of the back surface of the lid 2 is placed on the upper surface of the drawer box 3a. The slip prevention legs 21 provided at positions slightly inward from the four corners are placed at the four corners on the upper surface of the middle frame plate 10 to prevent the lateral displacement of the lid 2. Thus, the slip prevention legs 21 provided at positions slightly inward from the four corners on the back surface of the lid 2 are placed on the four corners on the upper surface of the middle frame plate 10 to position and close the lid 2. In this state, the outer end of the lid body 2 is located outside the outer surfaces of the front plate 5a, the rear plate 5b, the left and right side plates 5c, 5d in plan view, and connects the protruding tips of the corner cover members 18 at the four corners. The lid body 2 is set to the same size as that in FIG. 1 or inside the line connecting the protruding tips of the corner cover member 18.

  Therefore, when the lid 2 is moved to the front or removed, a finger is placed on the portion of the end of the lid 2 that protrudes outward from the outer surface of the front plate 5a, and the end of the lid 2 is slightly raised. By pulling in the state of being lifted up, the lid 2 can be removed, or the rear end of the lid 2 can be shifted forward from the upper end of the rear plate 5b.

  A drawer 4 that opens upward as shown in FIGS. 1 and 2 is housed in the drawer box 3 a so as to be freely inserted and removed from the front opening 1. The drawer 4 has a caster 4a attached to its lower surface. When the drawer 4 is vigorously pushed into the drawer box 3 a, the left and right ends of the drawer 4 come into contact with the drawer stopper 7. Thus, the both ends of the rear surface portion of the drawer 4 abut against the drawer stopper 7 to stop the drawer 4 from colliding with the rear plate 5b. In addition, since the drawer stopper 7 is fixed to the left and right side plates 5c and 5d by screws 8, even if the drawer 4 collides with the drawer stopper 7, the rear plate 5b has a force that disengages from the left and right side plates 5c and 5d. Does not work. Therefore, the screw 6 that fixes the rear plate 5b and the left and right side plates 5c, 5d is loosened by the collision of the drawer 4, and the rear plate 5b is prevented from being detached from the left and right side plates 5c, 5d.

  Next, the hatch box 3b will be described. As shown in FIGS. 5 to 8, the hatch box 3 b is configured by assembling a front plate 5 a, a rear plate 5 b, left and right side plates 5 c and 5 d, and a bottom plate 30. That is, as shown in FIG. 6A, the front plate 5a is placed sideways with the rear surface (inner surface) facing upward. Dowel holes 12 are provided at the left and right ends of the rear surface of the front plate 5a. Next, the dowel holes 12 provided at both ends of the front plate 5a in a state where the left and right side plates 5c and 5d are erected with their rear ends up and the dowels 13 protruding from the front end surface are coated with adhesive. Fit into each. Next, as shown in FIG. 6 (b), in front of the bottom plate 30 in a state where an adhesive is applied to the inner surfaces of the left and right side plates 5c, 5d and the groove 31 provided in the lower end portion of the front surface of the front plate 5a, In the state where the edge portions of the left and right sides are fitted, and the dowel holes 12 provided at both ends of the front surface of the rear plate 5b are applied to the dowels 13 provided on the rear end surfaces of the left and right side plates 5c and 5d. The bottom plate 30 is fitted into the groove 31 provided at the lower end of the rear surface of the rear plate 5b with an adhesive applied, and left and right side plates 5c are attached to the left and right ends of the rear surface of the front plate 5a. The front end surface of 5d is abutted, and the left and right side plates 5c and 5d are temporarily assembled into a box shape with the left and right ends of the front surface of the rear plate 5b butted, and in this temporarily assembled state, the front plate 5a Screws 6 are inserted from both ends of the front surface and screwed into the front ends of the left and right side plates 5c and 5d and fixed. At the same time, the screw plate 6 is inserted from both ends of the rear surface of the rear plate 5b and screwed into the rear end portions of the left and right side plates 5c and 5d to be fixed to the bottom plate 30 as shown in FIG. 6 (c). Is assembled and the hatch box 3b having the upper opening 16 opened upward is assembled.

  As shown in FIG. 7, the link device 29 is attached to the rear upper ends of the side surfaces of the left and right side plates 5c and 5d of the hatch box 3b having the assembled bottom plate 30 and having the upper opening 16. The link device 29 has a lower end portion of a first link plate 34 pivotally supported by a shaft 35 on an upper portion of a front end portion of a side plate fixing portion 33 fixed to the left and right side plates 5c and 5d. The lower end portion of the second link plate 36 is pivotally supported by a shaft 37 at the lower portion of the rear end portion thereof, and is L-shaped to be fixed to both side portions of the rear end portion of the lower surface of the lid body 2. An upper end portion of the first link plate 34 is pivotally supported by a shaft 39 on an upper portion of a piece protruding from the lid body 2 of the lid side fixing portion 38, and further from the lid body 2 of the lid side fixing portion 38. The upper end portion of the second link plate 36 is pivotally supported by a shaft 40 at the lower portion of the protruding piece, and is further provided with a spring provided at a position higher than the pivot position by the shaft 37 of the second link plate 36. The coil spring is connected to the portion 25 and the spring mounting portion 26 provided below the shaft 35 of the side plate fixing portion 33. Install the 27 two ends of pulling the second link plate 36 is imparted a spring force which tries to rotate.

  Then, with the lid 2 opened as shown in FIG. 5A, the tension spring force acts on the second link plate 36 by the coil spring 27, so that the lid 2 shown in FIG. To be maintained. In the open state of the lid body 2 in FIG. 5 (a), the rear end surface of the lid body 2 is configured to rise slightly above the upper surfaces of the left and right side plates 5c and 5d and to stand forward from the rear plate 5b. It is.

  When the lid 2 in the opened state of FIG. 5 (a) is rotated in the direction of holding and closing the front end of the lid 2 by hand, the shaft 40 about the shaft 39 resists the spring force of the coil spring 27. By rotating, the lid body 2 can be closed. In this case, the first link plate 34 rotates clockwise about the shaft 35 in FIG. Since the shaft 40 at the upper end of the second link plate 36 rotates about the shaft 39, the second link plate 36 rotates clockwise about the shaft 37 in FIG. 5A, and FIG. As described above, the lid 2 closes the upper opening of the hatch box 3b.

  The link device 29 is configured to cover the left and right side plates 5c and 5d by attaching a link cover 28 thereto.

  A vertical groove 17 is provided at the corner of the hatch box 3b. In the embodiment shown in the accompanying drawings, the front plate 5a and the rear plate 5b are provided with a vertical groove 17 in the vertical direction near the end portion on the outer surface side, and further, end portions on the inner surfaces of the front plate 5a and the rear plate 5b, An L-shaped paragraph portion is provided in a vertical direction at a corner portion formed with the end surface, and a vertical groove 17 is formed by the L-shaped paragraph portion and the end surfaces of the left and right side plates 5c, 5d adjacent to each other.

  The corner cover member 18 that covers the protruding corner portion of the hatch box 3b is similar to the corner cover member 18 that covers the protruding corner portion of the drawer box 3a described above. In the state where the opening angle is widened, the two engaging projections 20 are inserted into the vertical grooves 17 provided at the protruding corners of the hatch box 3b from above, so that the protruding corners of the hatch box 3b are inserted. The corner cover member 18 is attached so as to protrude outward and the side cover surfaces of the front plate 5a and the rear plate 5b and the screw 6 are covered with the corner cover member 18 so that the appearance is improved. This eliminates the need for a separate decorative side plate as in the prior art.

  The upper surface of the lid 2 is a tatami part, and the tatami part is fixed to the lid body that supports the load on the lower part. The lid 2 is configured to close the upper opening of the hatch box 3b by closing as described above, but is placed on the upper end surface of the lid 2 hatch box 3b to apply a load. It comes to support.

  The size of the lid 2 that allows the upper opening 16 of the hatch box 3b to be freely opened and closed is such that the side edge of the lid 2 is a front plate 5a and a rear plate 5b in a plan view when the lid 2 is closed. And located outside the outer surfaces of the left and right side plates 5c and 5d and located on the same side as the line connecting the protruding tips of the corner cover members 18 at the four corners or inside the line connecting the protruding tips of the corner cover members 18. It is set to a large size.

Intended to be installed on the floor, such as a carpeted or flooring grayed such living drawer for box body 3a of the structure alone or as juxtaposed box body 3b and hatch, and the upper surface portion tatami portion of the lid 2 Therefore, it is used to sit on the lid 2 or lie down, and the box 3 is stored with stored items. Of course, the hatch box 3b can be used alone on the floor.

  When the drawer box 3a is used alone or in parallel with the hatch box 3b, the corner cover members 18 of the adjacent box 3 are brought into contact with each other, and the side plates 5c and 5d of the adjacent box 3 are contacted. A connecting member 9 having a U-shaped cross section as shown in FIG. 14 is provided in FIGS. 10 to 12 so as to straddle the upper end portion or to straddle the rear plate 5b of the adjacent box 3 and the upper end portion of the front plate 5a. As shown in FIG. 5, the side plates 5c and 5d are connected to each other, the front plate 5a and the rear plate 5b are connected to each other, and the upper horizontal piece 9a of the connecting member 9 is connected to the gap 11 between the side plates 5c and 5d. The gap 11 between the front plate 5a and the rear plate 5b is hidden. In this case, the opposing end surfaces of the adjacent lid bodies 2 are opposed to each other through contact or a slight gap, and the opposing portion of the side end surface of the adjacent lid body 2 is placed on the upper horizontal piece 9a of the connecting member 9. Even if dust enters from the opposite part of the side end face of the adjacent lid body 2, it can be received by the upper horizontal piece 9 a, and the garbage collected in the upper horizontal piece 9 a can be easily opened by opening the lid body 2. Can be removed.

  Here, when box 3 is arranged in parallel on a plurality of floors and connected with connecting member 9 as described above, hatch box 3b may be arranged anywhere, but drawer box 3a is It is necessary to arrange the front opening 1 at a position where the front opening 1 is not shielded by the wall or another box 3, that is, the position where the drawer 4 can be pulled out. By arranging in this way, the drawer 4 can be pulled out from the drawer box 3a, the stored items can be stored in the drawer 4, and again stored in the drawer box 3a from the front opening 1. In this case, as described above, even if the drawer 4 is pushed in vigorously, both ends of the rear surface portion of the drawer 4 come into contact with the drawer stopper 7 and stop, and the drawer 4 is prevented from colliding with the rear plate 5b.

  Further, in the case where a plurality of box bodies 3 are arranged side by side, in order to put the stored items in and out with the upper opening 16 of the hatch box body 3b opened, the following is performed.

  That is, as shown in FIG. 10, the end of the lid 2 is slightly placed by placing a finger on a portion protruding outward from the outer surface of the front plate 5a at the end of the lid 2 of the drawer box 3a located in front. The rear end of the lid 2 is shifted forward or removed from the upper end of the rear plate 5b by pulling it forward while being lifted up. As a result, the front end surface of the lid 2 of the rear hatch box 3b is exposed, so that the rear side can be turned by placing a finger on the front end surface of the lid 2 of the rear hatch 3b. The lid 2 of the hatch box 3b is opened, and the stored items can be taken in and out from the upper opening 1 of the hatch box 3b on the rear side.

  As described above, the front end face of the lid 2 of the hatch box 3b located at the rear side is exposed by pulling the lid 2 of the drawer box 3a toward the front and moving or removing it, and this exposed portion. When the lid 2 of the hatch box 3b is opened by placing a hand on the lid or when the tatami part on the upper surface of the lid 2 of the drawer box 3a is damaged, the lid 2 is replaced for replacement. Is removed, the upper opening 16 of the drawer box 3a is exposed, and the middle frame plate 10 is exposed at the upper opening 16 portion. However, the middle frame plate 10 leaves only the outer peripheral portion and the opening 15 at the center. Therefore, a person cannot accidentally ride on or sit on the middle frame plate 10, and therefore, a person may accidentally ride on or sit on the middle frame plate 10. The outer peripheral edge of the plate 10 does not come off the groove 14. Moreover, even if a person puts a hand on the outer peripheral portion of the middle frame plate 10 and pushes it downward, the inner end side of the pushed portion of the middle frame plate 10 is slightly bent downward so that the hand slips and the opening portion. 15, the outer peripheral end of the middle frame plate 10 does not come off the groove 14.

(A) is an exploded perspective view of the drawer box, lid, and drawer used in the present invention, and (b) is a perspective view of the lid turned upside down. (A) is a top view of the state which pulled out drawer | drawing-out with respect to the box for drawer used for this invention, (b) is sectional drawing. (A) (b) (c) is a perspective view which shows the assembly order of the box for drawer same as the above. (A) is a perspective view which shows attachment of a corner cover member same as the above, (b) is a principal part expansion perspective view. (A) is sectional drawing of the state which opened the cover of the hatch box same as the above, (b) is sectional drawing of the state which closed the cover. (A) (b) (c) is explanatory drawing which shows the assembly order of the box for hatches same as the above. It is a perspective view which shows a link apparatus same as the above. It is a perspective view which shows attachment of a corner cover member same as the above. It is a perspective view which shows the example which arranged the box body in multiple numbers by arrange | positioning in front of the drawer box body same as the above, and arrange | positioning the hatch box body to the rear side. It is a perspective view which shows the state which moved the cover body of the drawer | drawing-out box body arrange | positioned in this side in order to open the cover body of the hatch box body arrange | positioned at the rear side same as the above. It is a perspective view which shows the example which connects the box for drawers same as the above, and the box for hatches with a connection member. It is sectional drawing which shows the part connected with the connection member same as the above. It is sectional drawing of the corner cover member used for the same as the above. It is sectional drawing of the connection member used for the same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front opening 2 Lid 3a Drawer box 4 Drawer 4a Caster 5a Front plate 5b Rear plate 5c Side plate 5d Side plate 10 Middle frame plate 14 Groove 15 Opening

Claims (1)

The rear plate, the left and right side plates, and the rear plate and the front plate whose vertical length is shorter than that of the side plate, and the outer periphery of the middle frame plate in the grooves provided on the inner surfaces of the front plate, the rear plate, and the left and right side plates The end edge part is fitted and fixed with an adhesive to form a drawer box with the top and bottom open and the front plate lower part being the front opening. A drawer with a caster is slidably stored in the drawer box from the front opening of the drawer box , and a lid with a tatami mat on the upper surface is detachably mounted on the drawer box. The opening formed in the central portion leaving only the outer peripheral part of the plate is opposed to the upper opening and the upper opening of the drawer box, and the upper opening and the opening communicate with each other with the lid removed. A floor-standing tatami stand.

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