JP3068906U - mat - Google Patents

Abstract

(57) [Summary] [Problem] To be used in a tray on which a dedicated toilet or the like is placed or in the vicinity thereof, sheets for preventing the dirt can be easily replaced, installed in various pet cases, and laid below. The present invention provides a mat that can be used by appropriately changing its size even when used. SOLUTION: A top plate 3 having a rectangular planar shape, peripheral walls 4a, 4b, 4c, 4d suspended from an outer peripheral edge of the top plate 3, and at least peripheral walls 4a, 4c, 4b, 4d opposed to each other are provided. A substrate 2 having a first connecting portion 5 and a second connecting portion 6, and arranging one or a plurality of the substrates 2 adjacent to each other, and detachably attaching sheets to the upper surface of the top plate 3. Things.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 In the present invention, a plurality of boards are arranged adjacent to each other so that they can be connected freely, and sheets can be attached and detached on the upper surface of the boards. It is related to a toilet or tableware, trays for dishes, trays for cages, circles, beds and kennels, or a tray or a floor plate provided on the lower part of the toilet floor, and a mat which can be used as a playground for pets.

[0002]

[Prior art]

 A large number of pet trays have been proposed as pet trays or trays provided at the lower part of pet toilets, dish trays, or pet cases such as cages and circles.

[0003] As an example, there is a bottom plate constituting a companion animal stall disclosed in Japanese Utility Model Publication No. 4-24931. The bottom plate is formed in a rectangular shape in which a basket is placed around the upright front wall, the rear wall, the left side wall, and the right side wall, and the engagement projections and the engagement projections are fitted to the front wall. At least one pair of engagement holes is formed. Then, when the front walls of the two bottom plates are opposed to each other and pressed against each other, the engagement projections of one bottom plate are fitted into the other engagement holes, and the two bottom plates are joined to each other, and the bottom plate for one head ( In the livestock barn), the bottom plate (livestock barn) for two heads is replaced (prior art 1).

A laboratory animal breeding cage disclosed in Japanese Utility Model Laid-Open Publication No. 57-84865 is inserted into a cage-shaped body so as to be freely inserted into and removed from a cage-shaped bottom plate provided at a lower portion of a box-shaped cage body. The tray has a U-shaped saucer with a vertical cross-section facing upward, and a deodorant sheet impregnated with a deodorant is detachably disposed in the saucer so as to cover the upper surface of the saucer. When an animal is housed in a cage body and raised, the odor of the animal and the odor of the discharged matter are deodorized by the deodorant sheet (prior art 2).

Further, Japanese Patent Application Laid-Open No. 7-327541 discloses a pet tray used for a dedicated toilet, a dish tray, and the like. This pet tray includes a tray body and a pressing member shaped to fit the periphery of the tray body fixed to the tray body by a plurality of fixing means. Sheets laid on the tray body are held by the pressing member. This is a pet tray for pressing and holding, wherein the holding member is formed of a member having a predetermined elasticity, and between the fixing means is formed in a curved shape protruding in the sheet pressing direction. Then, the pet tray is placed on an indoor floor, for example, and used as a dedicated toilet or dish tray. At this time, the pressing force is applied to the sheets by the restoring force of the pressing member that presses the sheets of the pet tray, so that the pet moves around on the sheets, and even if the claws are raised, the sheets are displaced or turned. It is prevented from rising (prior art 3).

[0006]

[Problems to be solved by the invention]

 In the prior art 1 as described above, the engaging projection and the engaging hole provided on the bottom plate of the one-stall barn are fitted with the engaging hole and the engaging protrusion provided on the bottom plate of another one-stall barn. By doing so, the two can be connected and rearranged to a two-headed barn. However, when breeding pets in a barn, toilets and dishes for pets are placed directly on the top of the bottom of the bottom plate, so the top of the bottom may be contaminated with food and waste. The cleaning was also troublesome. To prevent this, it is conceivable to lay newspaper etc. on the bottom upper surface of the bottom plate. There was a problem that it could not be prevented. In addition, since the bottom plate of this barn is used, for example, placed directly on the floor indoors, pets moving around in the barn may scatter food or the like on the floor, and the floor around the barn may be damaged. There was also the problem of getting dirty. Furthermore, the bottom plate that can be connected was exclusively used for this barn, and could not be used for various pet cases such as cages, circles and kennels of different shapes and sizes.

In the above-mentioned prior art 2, since the tray is inserted and removed so as to be able to be taken in and out of the cage body, even when the tray is soiled with bait or the like, cleaning can be easily performed. However, in practice, the pet is a slanted bottom plate for the pet to move around.The slanted bottom plate is difficult to clean and easy to put in and out, and the shape and size of the pan and the slanted bottom plate are limited. As a result, it could not be used for various pet cases.

In the above-described prior art 3, the sheet laid on the tray body prevents the tray body from being directly stained. However, since the sheets are pressed down by pressing force on the sheets by the restoring force of the pressing member, replacing the dirty sheets is very troublesome. Further, although the sheet prevents the tray body from being stained, there is a problem in that, for example, an indoor floor surface on which the pet tray is directly placed is soiled by scattered bait or the like.

The present invention has been made to solve the above-mentioned problems, and can be used on or around a tray and a tray on which a dedicated toilet or a dish tray is placed. Sheets can be easily replaced, and can be installed in a variety of pet cases, such as cages, circles and kennels of different shapes and sizes, or used under a pet case. The purpose of the present invention is to provide a mat which can be used by appropriately changing its size.

[0010]

[Means for Solving the Problems]

 The mat according to the present invention includes a top plate having a rectangular planar shape, a peripheral wall vertically suspended from an outer peripheral edge of the top plate, and a first connecting portion and a second connecting portion provided at least on the opposing peripheral walls. And a single or a plurality of the substrates are arranged adjacent to each other, and sheets are detachably mounted on the upper surface of the top plate.

The mat according to the present invention has a rectangular top plate having a plurality of mounting holes, a stopper having a cutout on the upper surface, and a stopper which is detachably mounted in the mounting hole. A substrate having a peripheral wall vertically suspended from an outer peripheral edge of the plate and at least a first connecting portion and a second connecting portion provided on at least the opposing peripheral walls. The sheets are to be arranged and the sheets are detachably attached to the cutouts of the stoppers on the top plate.

In the mat according to the present invention, the first connecting portion is provided on one adjacent peripheral wall of the substrate, and the second connecting portion is provided on the other adjacent peripheral wall of the substrate. The plurality of connecting portions are connected to the second connecting portion of another substrate, and are arranged adjacent to each other.

In the mat according to the present invention, the first connecting portion has a pair of left-right symmetrical flat portions substantially parallel to the peripheral wall of the substrate, and a pair of flat surface portions protruding from the pair of flat wall portions to the peripheral wall side. A pair of ribs having a substantially L-shape and a symmetrical front shape formed integrally, a concave portion formed from the upper surface to a substantially intermediate portion on the peripheral wall of the substrate between the pair of flat portions, and a lower portion of the concave portion. A notch, and a second connecting portion having a locking piece projecting outward at a lower end portion and locking the notch in the first connecting portion, and having a width equal to that of the first connecting portion. The width between the pair of flat portions is substantially equal to or slightly smaller than the width between the pair of flat portions, and the engaging portion fitted between the pair of flat portions and the pair of ribs of the first connecting portion are fitted respectively, so that the peripheral wall of the substrate is formed. A fitting portion that fits into a gap formed by the flat portion of the first connecting portion, the rib, and the peripheral wall of the substrate is formed. The plane formed has a substantially L-shape and is constituted by a pair of slits formed symmetrically on both sides of the locking portion.

In the mat according to the present invention, the first connecting portion includes a pair of left-right symmetrical plane portions substantially parallel to the peripheral wall of the substrate, and a pair of flat surface portions protruding from the pair of planar portions toward the peripheral wall side. The integrally formed front shape is constituted by a pair of symmetrical ribs having a substantially L-shape and the width of the second connecting portion is substantially equal to the width between the pair of flat portions of the first connecting portion. It is slightly narrower, and the engaging portion fitted between the pair of flat portions and the pair of ribs of the first connecting portion are fitted respectively, so that the peripheral wall of the substrate has the flat portion of the first connecting portion, the rib and The flat portion forming a fitting portion that fits into the gap formed by the peripheral wall of the substrate is substantially L-shaped, and is constituted by a pair of slits formed symmetrically on both sides of the locking portion.

In the mat according to the present invention, one adjacent peripheral wall provided with the first connection portion of the substrate is vertically provided on the outer peripheral edge of the top plate of the substrate with a step portion at a position lower than the top plate. In addition, the other adjacent peripheral wall on which the second connecting portion of the substrate is provided is vertically disposed inside so as to have a protruding portion mounted on a step portion of another substrate.

[0016]

[Embodiment of the invention]

 Embodiment 1 FIG. FIG. 1 is a plan view, a right side view, and a front view of a substrate according to Embodiment 1 of the present invention, FIG. 2 is a perspective view of the substrate, and FIG. 3 is an enlarged view of a main part of the substrate.

In the drawing, reference numeral 2 denotes a substrate made of a synthetic resin and constituting a mat 1 (see FIG. 7) by arranging one or a plurality of adjacent ones. The substrate 2 comprises a substantially rectangular top plate 3 and peripheral walls 4a, 4b, 4c, 4d suspended from the outer peripheral edge thereof. At least one of the adjacent peripheral walls 4a, 4b (here, 2 ) Are provided, and at least one (here, two) first connecting portions 5 connected to the first connecting portion 5 of another substrate 2 are provided on the other adjacent peripheral walls 4c and 4d. Two connecting portions 6 are provided, respectively. One of the adjacent peripheral walls 4a, 4b is vertically provided with a stepped portion 7 at a position lower than the top plate 3 on the outer peripheral edge of the top plate 3, and the other adjacent peripheral walls 4c, 4d are connected to another substrate. The projections 8 are provided on the inner side so as to have the protruding portions 8 placed on the two step portions 7.

The top plate 3 is provided with a plurality (four in this case) of mounting holes 9 in which sheet stoppers to be described later are detachably mounted. As shown in FIGS. 1 and 6, the mounting hole 9 has a substantially elliptical planar shape, a step 9a on the inner periphery and a recess 9b inside the step 9a, and a plurality of holes ( In this case, four (4) engaging holes 9c are provided, and a sheet stopper receiving portion 9d protruding from the inner periphery of the concave portion 9b to above the step portion 9a is formed in a bottomed long cylindrical shape.

As shown in FIGS. 2 and 3B, the first connecting portion 5 has a pair of left-right symmetrical flat portions 51 having a substantially triangular front shape and substantially parallel to the peripheral wall 4a (4b). The protrusions projecting toward the peripheral wall 4a (4b) from the respective lower portions of the pair of flat portions 51 and the opposite side portions of the flat portions 51 to form the flat portion 51 and the peripheral wall 4a (4b) integrally. A pair of ribs 52 whose surfaces are substantially L-shaped and bilaterally symmetric, and a peripheral wall 4a (4b) between the pair of flat portions 51 are formed from the stepped portion 7 to a substantially intermediate portion, and a second connection described later. The locking portion of the portion 6 is constituted by a concave portion 53 in which the locking portion is guided, and a notch portion 54 formed at a lower portion of the concave portion 53 and locked by a locking piece of the second connecting portion 6.

As shown in FIG. 2 and FIG. 3A, the second connecting portion 6 projects outward from the lower end and is engaged with the notch 54 of the first connecting portion 5. A locking portion 61 having a width substantially equal to or slightly smaller than the width between the pair of flat portions 51 of the first connecting portion 5, and a locking portion 61 fitted between the pair of flat portions 51; The pair of ribs 52 of the connecting portion 5 are fitted respectively, and the peripheral wall 4c (4d) is a gap G formed by the flat portion 51, the rib 52, and the side wall 4a (4b) of the first connecting portion 5 (see FIG. 4). The pair of slits 63 which are formed substantially symmetrically on both sides of the locking portion 61 and have a substantially L-shaped planar shape forming a fitting portion 64 to be fitted in (1).

Then, as shown in FIG. 4, the first connecting portion 5 provided on one substrate 2 and the second connecting portion 6 provided on another substrate 2 are opposed to each other, and the second connecting portion 5 is provided. The pair of slits 63 of the second connecting portion 6 are fitted into the pair of ribs 52 of the first connecting portion 5 while the locking portions 61 of the first connecting portion 5 are along the concave portions 53 from above the first connecting portion 5. Then, the locking piece 62 of the locking portion 61 of the second connecting portion 6 is locked in the cutout portion 54 of the first connecting portion 5, and the fitting portion 64 of the second connecting portion 6 is locked in the first connecting portion 6. It is located in the gap G formed by the connecting portion 5 and the peripheral wall 4a (4b). Thereby, the first and second connecting portions 5 and 6 are connected.

Reference numeral 10 denotes a sheet stopper which is removably mounted in each of the mounting holes 9 provided in the top plate 3, as shown in FIG. 5 and FIG. For example, a top portion 11 having a cut portion 11a formed of a lightning-shaped slit and a plurality of substantially Y-shaped slits orthogonal thereto, and an engagement hole 9c of a mounting hole 9 on the outer periphery. And has a plurality of (four in this case) locking claws 12a having a plurality of (in this case, four) locking claws 12a which are locked to the step 9a of the mounting hole 9, and reach below the locking claws 12a. The lower end of the long cylindrical portion 12 with a cover is fitted into the recess 9 b of the mounting hole 9, and is received inside by the sheet stopper 9 d of the mounting hole 9. Then, the sheet stopper 10 has the covered long cylindrical portion 12 inserted into the mounting hole 9 from the lower end and fitted into the concave portion 9b and the sheet stopper receiving portion 9d. 12a is engaged with the engaging hole 9c and is also engaged with the step 9a to be mounted in the mounting hole 9.

In the first embodiment configured as described above, for example, when a plurality of (here, four) substrates 2 are connected and laid under a dedicated toilet or the like and used, first, as shown in FIG. The first connecting portion 5 provided on the peripheral wall 4a of the first substrate 2 and the second connecting portion 6 provided on the peripheral wall 4c of the second substrate 2 are connected to each other as shown in FIG. Then, a mat 1 including two substrates 2 is formed. At this time, the protruding portion 8 of the second substrate 2 is placed on the step 7 of the first substrate 2, and the gap between the connected substrates 2 is almost eliminated.

Next, the third substrate 2 and the fourth substrate 2 are connected in the same manner, respectively, and the first connecting portion 5 provided on the peripheral wall 4 b of the third substrate 2 and the fourth peripheral wall The first connecting part 5 provided on the peripheral wall 4d of the first substrate 2 and the second connecting part 6 provided on the peripheral wall 4d of the second substrate 2 The parts 6 are connected to each other to form a mat 1 composed of four substrates 2.

Next, for example, sheets having the size of two substrates 2 or the size of four substrates 2 are spread on the top surface of the top plate of the mat 1 composed of four substrates 2, and the sheet stopper 10 is provided. The sheet covering the sheet is pressed from above with a finger, bites into the cutout 11a of the sheet stopper 10, and is fixed. The sheets need only be fixed to the extent that the sheets do not shift or flip up, and do not need to be fixed at all locations where the sheet stopper 10 is provided.

Next, the mat 1 to which the sheets are attached is placed directly on, for example, an indoor floor, and a dedicated toilet or the like is placed on the upper surface thereof. At this time, the sheet of the mat 1 is not displaced or turned up even if the pet moves up or moves up or raises a claw on the upper surface of the mat 1, and the floor around the exclusive toilet etc. is soiled by the mat 1. Is prevented. If the sheets of the mat 1 on which the exclusive toilet etc. are placed become dirty, move the exclusive toilet etc. to a place other than the mat 1, and then move the sheet to a portion where the sheets are not dirty (for example, the end of the sheet). Section) and remove the sheets biting into the cuts 11a of the sheet stoppers 10. Then, the dirty sheet is replaced with a new sheet, and the sheet is mounted on the upper surface of the mat 1 as described above.

As described above, the plurality of substrates 2 provided with the sheet stoppers 10 to which sheets are bitten into the top plate 3 are attached to the first link provided on the peripheral walls 4a, 4b, 4c, and 4d. By connecting the connecting portion 5 and the second connecting portion 6 respectively, the mat 1 having a desired size is formed, and the sheets can be detachably mounted on the upper surface of the top plate. Thus, if a dedicated toilet or tableware tray is placed on the floor via the mat 1, the mat 1 can prevent dirt around the place where the dedicated toilet or the like is placed, and can also prevent the sheets from becoming dirty. It can be easily replaced even if it gets dirty, and it is easy to clean. In addition, since the mat 1 can be formed to a desired size by connecting a plurality of substrates 2, the mat 1 can be stored in various pet cases such as cages, circles and kennels having different shapes and sizes. It can be installed or laid under a pet case and used, and a mat 1 that has a wide range of use and is easy to use can be obtained. Further, the gap 7 can be almost eliminated by the stepped portion 7 and the protruding portion 8 between the connected substrates 2, so that the food does not fall into the gap, and the pet is not caught by the gap or the appearance is prevented. Thus, the mat 1 having good usability and design can be obtained.

Embodiment 2 FIG. 8 is a perspective view of a substrate according to a second embodiment of the present invention. In the second embodiment, the first connecting portion provided on the peripheral walls 4a and 4b of the substrate 2 according to the first embodiment. 5, the notch 53 of the second connecting portion 6 and the notch 54 of the second connecting portion 6 provided on the peripheral walls 4c and 4d are omitted. The pair of slits 63 of the second connecting portion 6 are fitted to the pair of ribs 52 of the first connecting portion 5 while the stop portion 61 is fitted between the pair of flat portions 51 from above the first connecting portion 5. The first and second connecting portions 5, 5 are positioned by fitting the fitting portion 64 of the second connecting portion 6 into the gap G formed by the first connecting portion 5 and the peripheral wall 4a (or 4b). 6 are connected.

With this configuration, substantially the same operations and effects as those of the first embodiment can be obtained, and the notch 54 of the first connecting portion 5 and the locking of the second connecting portion 6 locked to the notch 54 are provided. By omitting the locking pieces 62 of the portion 61, the connection of the plurality of substrates 2 can be more easily disconnected, and the mat 1 with good workability can be obtained.

In the first and second embodiments, the case where the front shape of the flat portion 51 of the first connecting portion 5 is substantially triangular has been described. However, the present invention is not limited to this. It may be rectangular or fan-shaped. Further, the case where the planar shape of the mounting hole 9 and the sheet stopper 10 is an elliptical shape is shown, but the present invention is not limited to this, and the planar shape may be a circular shape, a rectangular shape, a polygonal shape, or the like.

[0031]

[Effect of the invention]

 As described above, the mat according to the present invention includes a top plate having a rectangular planar shape, a peripheral wall suspended from an outer peripheral edge of the top plate, and a first connecting portion provided on at least the opposing peripheral wall. A board having a second connecting portion is provided, and the boards are arranged alone or adjacently, and sheets are detachably mounted on the top surface of the top plate. Can be placed via a mat without directly placing it on a floor or the like, and this mat can prevent direct contamination on the floor or the like. In addition, even if the sheets of the mat on which the dedicated toilet etc. are placed become dirty, the sheets can be cleaned immediately by simply changing the sheets, and the sheets can be easily replaced, so that the cleanliness is easy to clean and easy to use. You can get a mat. Furthermore, since the mat can be formed to a desired size by connecting a plurality of substrates, it can be installed in various pet cases such as cages, circles and kennels of different shapes and sizes. It can be used by laying it under a pet case, and a wide range of use and a convenient mat can be obtained.

The mat according to the present invention includes a top plate having a rectangular shape in plan view, which includes a plurality of mounting holes, a notch having a cutout on an upper surface, and a stopper which is detachably mounted in the mounting hole. A substrate having a peripheral wall vertically suspended from an outer peripheral edge of the plate and at least a first connecting portion and a second connecting portion provided on at least the opposing peripheral walls. The sheet is placed and the sheet is detachably attached to the notch of the stopper on the top of the top plate, so that the sheet can be attached and removed with simple work, and the pet can move up to the top of the mat and move around Even when standing up, the sheets can be prevented from being displaced and turned up, and the mat and the surrounding floor surface can be prevented from being stained.

In the mat according to the present invention, the first connecting portion is provided on one adjacent peripheral wall of the substrate, and the second connecting portion is provided on the other adjacent peripheral wall of the substrate. Since a plurality of the connecting portions are arranged adjacent to each other by connecting the second connecting portion of another substrate, a mat which can easily connect the substrates can be obtained.

In the mat according to the present invention, the first connecting portion has a pair of left-right symmetrical planes substantially parallel to the peripheral wall of the substrate, and a pair of the planar parts protruding from the pair of planes toward the peripheral wall. A pair of ribs having a substantially L-shape and a symmetrical front shape formed integrally, a concave portion formed from the upper surface to a substantially intermediate portion on the peripheral wall of the substrate between the pair of flat portions, and a lower portion of the concave portion. A notch, and a second connecting portion having a locking piece projecting outward at a lower end portion and locking the notch in the first connecting portion, and having a width equal to that of the first connecting portion. The width between the pair of flat portions is substantially equal to or slightly smaller than the width between the pair of flat portions, and the engaging portion fitted between the pair of flat portions and the pair of ribs of the first connecting portion are fitted respectively, so that the peripheral wall of the substrate is formed. A fitting portion that fits into a gap formed by the flat portion of the first connecting portion, the rib, and the peripheral wall of the substrate is formed. Since it consists of a pair of slits that are formed almost symmetrically on both sides of the locking part with a substantially L-shaped planar shape, it is possible to connect multiple boards with a simple operation and to make it any size You can get a mat that can.

In the mat according to the present invention, the first connecting portion is formed by a pair of left-right symmetrical plane portions substantially parallel to the peripheral wall of the substrate and a pair of the flat surface portions projecting toward the peripheral wall side. The integrally formed front shape is constituted by a pair of symmetrical ribs having a substantially L-shape and the width of the second connecting portion is substantially equal to the width between the pair of flat portions of the first connecting portion. It is slightly narrower, and the engaging portion fitted between the pair of flat portions and the pair of ribs of the first connecting portion are fitted respectively, so that the peripheral wall of the substrate has the flat portion of the first connecting portion, the rib and Since the flat portion forming the fitting portion that fits into the gap formed by the peripheral wall of the substrate is substantially L-shaped and is constituted by a pair of slits formed symmetrically on both sides of the locking portion, it is simple. Multiple substrates can be connected by operation and can be formed to any size In both cases, connection and disconnection of the substrate can be easily performed, and a mat with good workability can be obtained.

In the mat according to the present invention, one adjacent peripheral wall provided with the first connecting portion of the board is provided with a stepped portion at a position lower than the top plate on the outer peripheral edge of the top plate of the board. At the same time, the other adjacent peripheral wall on which the second connecting portion of the substrate is provided is vertically disposed inside so as to have a protruding portion mounted on the step portion of another substrate. The gap between the substrates can be almost eliminated, and a mat having good usability and design can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view, a right side view, and a front view of a substrate according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the substrate according to the first embodiment of the present invention.

FIG. 3 is an enlarged view of a main part of the substrate according to the first embodiment of the present invention.

FIG. 4 is a sectional view taken along line AA of FIG. 3 and an operation explanatory view thereof.

FIG. 5 is an enlarged view of a main part before the sheet stopper of the substrate according to the first embodiment of the present invention is mounted.

FIG. 6 is a sectional view taken along the line BB of FIG. 5 and an operation explanatory view thereof.

FIG. 7 is an operation explanatory view of the first embodiment of the present invention.

FIG. 8 is a perspective view of a substrate according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mat 2 Substrate 3 Top plate 4a, 4b, 4c, 4d Peripheral wall 5 1st connection part 6 2nd connection part 7 Step part 8 Projection part 9 Mounting hole 10 Sheet stopper 11a Cut part 51 Flat part 52 Rib 53 recessed part 54 Notch 61 Locking part 62 Locking piece 63 Slit 64 Fitting part G Gap

Claims (6)

[Utility model registration claims] 1. A top plate having a rectangular planar shape, a peripheral wall suspended from an outer peripheral edge of the top plate, and a first connecting portion and a second connecting portion provided on at least the opposing peripheral walls. A mat comprising: a substrate having one or a plurality of substrates arranged adjacent to each other; and sheets being detachably mounted on a top surface of a top plate. 2. A top plate having a rectangular shape in plan view having a plurality of mounting holes, a stopper having a cutout on the upper surface, and being detachably mounted in the mounting hole, and an outer peripheral edge of the top plate. And a first wall provided on at least the opposite peripheral wall.
Comprising a substrate having a connecting portion and a second connecting portion, wherein one or more of the substrates are arranged adjacent to each other, and a sheet is detachably attached to a cutout portion of the stopper on the top surface of the top plate. A mat characterized by the following. 3. A first connecting portion is provided on one adjacent peripheral wall of the substrate, and a second connecting portion is provided on the other adjacent peripheral wall of the substrate, and the first connecting portion of one substrate is separated from the other. The mat according to claim 1, wherein a plurality of the second connecting portions of the substrates are connected and arranged adjacent to each other. 4. A first connecting portion comprising: a pair of left-right symmetrical flat portions substantially parallel to a peripheral wall of a substrate; and a first projecting portion protruding from the pair of flat portions toward the peripheral wall, and the flat portion and the peripheral wall are integrated. A pair of ribs whose front shape is substantially L-shaped and symmetrical,
A concave portion formed from the upper surface to a substantially intermediate portion on the peripheral wall of the substrate between the pair of flat portions, and a cutout portion formed at a lower portion of the concave portion, and a second connecting portion is formed at a lower end portion. A locking piece that protrudes outward and locks the notch of the first connecting portion, and has a width substantially equal to or slightly smaller than a width between the pair of flat portions of the first connecting portion;
A locking portion fitted between the pair of flat portions;
Planes which respectively fit into a pair of ribs of the connecting portion, and form a fitting portion in which the peripheral wall of the substrate fits into a flat portion of the first connecting portion, a gap formed by the rib and the peripheral wall of the substrate. The mat according to any one of claims 1 to 3, wherein the mat is constituted by a pair of slits which are substantially L-shaped and formed symmetrically on both sides of the locking portion. 5. A pair of left and right symmetrical flat portions substantially parallel to a peripheral wall of a substrate, and a first connecting portion protruding from the pair of flat portions toward the peripheral wall, and the flat portion and the peripheral wall are integrally formed. The front shape to be formed is constituted by a pair of ribs which are substantially L-shaped and bilaterally symmetric, and the second connecting portion has a width substantially equal to or slightly equal to the width between the pair of flat portions of the first connecting portion. A locking portion that is narrowly fitted between the pair of flat portions and a pair of ribs of the first connecting portion, and the peripheral wall of the substrate is a flat portion of the first connecting portion; A planar portion forming a fitting portion that fits into a gap formed by the rib and the peripheral wall of the substrate is substantially L-shaped, and is constituted by a pair of slits formed symmetrically on both sides of the locking portion. Claims 1 to 3
The mat according to any of the above. 6. An adjacent peripheral wall provided with a first connection portion of a substrate is vertically provided on an outer peripheral edge of a top plate of the substrate with a step portion at a position lower than the top plate, and The other adjacent peripheral wall provided with a second connecting portion of the substrate is vertically disposed inside so as to have a protruding portion mounted on a step portion of another substrate. Item 6. The mat according to any one of Items 1 to 5.