Spectator tray

Abstract

We provide a user-friendly spectator tray. [Solution] The spectator tray 1 consists of a tray-shaped horizontal plate portion 2 having one side, a vertical plate portion 3 having one side opposite to the side of the horizontal plate portion 2 and being rotatable and slidable relative to the horizontal plate portion 2, and a belt portion 4. By rotating and sliding the vertical plate portion 3 relative to the horizontal plate portion 2, it is possible to switch between a first state in which the vertical plate portion 3 overlaps with the horizontal plate portion 2 and a second state in which the vertical plate portion 3 is substantially perpendicular to the horizontal plate portion 2. The belt portion 4 consists of a pair of horizontal belts 27, 27 connecting two ends of the horizontal plate portion 2 away from the side and two ends of the vertical plate portion 3 away from the side corresponding to the two ends of the horizontal plate portion 2, and a single vertical belt 28 connected to first fasteners 29, 29 provided on the pair of horizontal belts 27, 27. The position of the first fasteners 29, 29 on the pair of horizontal belts 27, 27 can be changed.

Description

Technical Field

[0005] , , , ,

[0001] The present invention relates to a viewing tray.

Background Art

[0002] Conventionally, when watching baseball games or the like at a baseball stadium, a viewing tray for placing food and drinks has been proposed (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The conventional viewing tray as described above is used by placing it on the knees of a user sitting on a chair or the like, and has a problem of poor usability. Specifically, during the use of the conventional viewing tray, the user had to align both knees and maintain the same posture while paying attention not to let the viewing tray tilt. Also, the user could not use the conventional viewing tray while standing up. Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a viewing tray with good usability.

Means for Solving the Problems

[0005] In order to solve the above problems, the present invention comprises a tray-shaped horizontal plate portion having a side extending linearly, a vertical plate portion having a side extending linearly opposite to the side of the horizontal plate portion and provided rotatably and slidably with respect to the horizontal plate portion, and a belt portion connected to the horizontal plate portion and the vertical plate portion. <0By rotating and sliding the vertical plate portion relative to the horizontal plate portion, it is possible to switch between a first state in which the vertical plate portion overlaps with the horizontal plate portion and a second state in which the vertical plate portion is substantially perpendicular to the horizontal plate portion. The belt portion consists of a pair of horizontal belts connecting two ends of the horizontal plate portion that are away from one side and two ends of the vertical plate portion that are away from one side and corresponding to the two ends of the horizontal plate portion, and a single vertical belt connected to first fasteners provided on each of the pair of horizontal belts. The present invention provides a spectator tray characterized in that the position of the first fastener in the pair of horizontal belts can be changed.

[0006] Furthermore, the present invention is It consists of a tray-shaped horizontal plate portion having one side extending in a straight line, a vertical plate portion having one side extending in a straight line opposite to the side of the horizontal plate portion and being rotatable and slidable relative to the horizontal plate portion, and a belt portion. By rotating and sliding the vertical plate portion relative to the horizontal plate portion, it is possible to switch between a first state in which the vertical plate portion overlaps with the horizontal plate portion and a second state in which the vertical plate portion is substantially perpendicular to the horizontal plate portion. The present invention provides a spectator tray characterized in that the belt portion consists of a belt connecting two ends of the vertical plate portion that are separated from one side. [Effects of the Invention]

[0007] According to the present invention, a user-friendly spectator tray can be provided. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1(a) is a perspective view showing the use of the spectator tray according to an embodiment of the present invention, Figure 1(b) is a side view, and Figure 1(c) is a rear view. [Figure 2] Figure 2(a) is a rear view showing the spectator tray in a folded state, Figure 2(b) is a front view, and Figure 2(c) is a side view. [Figure 3]Figure 3(a) shows the first side of the side panel of the spectator tray, Figure 3(b) shows the second side of the side panel, Figure 3(c) is a side view of the side panel, and Figure 3(d) is a cross-sectional view of Figure 3(a) along line IIId-IIId. [Figure 4] Figure 4(a) shows the first view of the vertical plate section of the spectator tray, Figure 4(b) shows the second view of the vertical plate section, and Figure 4(c) is a side view of the vertical plate section. [Modes for carrying out the invention]

[0009] A spectator tray according to an embodiment of the present invention will be described based on the attached drawings. As shown in Figure 1(a), the spectator tray 1 consists of a horizontal plate portion 2, a vertical plate portion 3 that is rotatable and slidable relative to the horizontal plate portion 2, and a belt portion 4 connected to the horizontal plate portion 2 and the vertical plate portion 3.

[0010] The horizontal plate portion 2 is made of plastic and consists of a rectangular plate-like member. As shown in Figures 1(a) and 3(a), the edge portion of the horizontal plate 2 is bent outward in the thickness direction along its entire circumference, more specifically perpendicular to the first surface side of the horizontal plate 2, to form the edge portion 5. The horizontal plate 2 is not limited to a rectangular shape and may have other shapes, such as a square shape. As shown in Figure 3(a), the first surface of the horizontal plate 2 has a circular recess 6 formed in the center of the longitudinal direction and on one side of the short direction for placing beverage containers, etc. Therefore, as shown in Figure 3(c), the second surface of the horizontal plate 2 (left side in Figure 3(c)) partially protrudes outward in the thickness direction, more specifically towards the second surface side.

[0011] On one side of the horizontal plate portion 2 in the short direction (the lower side in Figure 3(a)), a pair of plate-shaped first claw portions 7, 7 are integrally provided near both ends in the longitudinal direction. As shown in Figure 3(c), the first claw portion 7, when viewed from the side, extends outward in the short direction from the tip of the edge portion 5 (downward in Figure 3(c)), and is further bent outward in the thickness direction, specifically towards the second surface side (left side in Figure 3(c)), forming an L-shape.

[0012] At one edge 5 in the short side direction of the horizontal plate portion 2, on the inner side positions of the first claw portions 7, 7, a pair of plate-shaped second claw portions 8, 8 are integrally provided. As shown in FIG. 3(d), when viewed from the side, the second claw portion 8 extends from the tip of the edge 5 outward in the short side direction (the lower side in FIG. 3(d)), and further bends outward in the thickness direction, specifically, to the first surface side (the right side in FIG. 3(d)), and has an L-shaped configuration in which a cylindrical portion 8a is integrally provided at its tip. Note that the axial length of the cylindrical portion 8a is designed to be larger than the width of the second claw portion 8.

[0013] On the other edge 5 (the upper side in FIG. 3(a)) in the short side direction of the horizontal plate portion 2, at both end positions in the longitudinal direction, a pair of rectangular protrusions 9, 9 having rectangular through holes 9a penetrating in the thickness direction of the horizontal plate portion 2 are integrally provided. The protrusion 9 is integrally provided with a plate-shaped portion 9b that extends inward in the longitudinal direction of the horizontal plate portion 2 and whose tip is bent inward in the short side direction. On the second surface of the horizontal plate portion 2 shown in FIG. 3(b), near one end in the short side direction and at the same position as the second claw portions 8, 8 in the longitudinal direction, a pair of rectangular groove portions 10, 10 extending in the longitudinal direction are formed.

[0014] The vertical plate portion 3 is made of plastic and consists of a rectangular plate-shaped member. Specifically, the vertical plate portion 3 is designed such that the length in the longitudinal direction is slightly smaller than the length in the longitudinal direction of the horizontal plate portion 2 and the length in the short side direction is about half the length in the short side direction of the horizontal plate portion 2 so that it can be housed within the edge 5 of the horizontal plate portion 2.

[0015] As shown in FIG. 4(a), at one end (the lower side in FIG. 4(a)) in the short side direction of the vertical plate portion 3, a plate-shaped extending portion 11 is integrally provided. As shown in FIG. 4(c), when viewed from the side, the extending portion 11 extends from one end in the short side direction of the vertical plate portion 3 outward in the short side direction (the lower side in FIG. 4(c)), and further bends perpendicularly outward in the thickness direction, specifically, to the first surface side (the left side in FIG. 4(c)), and has an L-shaped configuration.

[0016] The extending portion 11 is provided at the central position in the longitudinal direction of the vertical plate portion 3, and the width in the longitudinal direction is designed to be slightly smaller than the interval between the first claw portions 7, 7 of the horizontal plate portion 2. As shown in FIG. 4(c), when the extending portion 11 is viewed from the side, at the tip of the extending portion 11 (the tip on the left side in FIG. 4(c)), in the longitudinal direction of the vertical plate portion 3, at the same position as the pair of second claw portions 8, 8 of the horizontal plate portion 2, a pair of plate-shaped claw portions 12, 12 are integrally provided.

[0017] As shown in FIG. 4(c), when viewed from the side, the claw portion 12 extends from the tip of the extending portion 11 toward the inner side in the short direction of the vertical plate portion 3, and the tip portion is in a V shape that gently bends outward in the thickness direction. On the inner side (the right side in FIG. 4(c)) surface of the claw portion 12, a ridge 12a extending in the longitudinal direction of the vertical plate portion 3 is integrally provided. <着

[0018] As shown in FIG. 4(a), in the vertical plate portion 3, a pair of rectangular second slots 14, 14 are formed so as to face the pair of claw portions 12, 12 of the extending portion 11. The second slot 14 extends from the central position in the short direction of the vertical plate portion 3 toward one end (the lower side in FIG. 4(a)) and reaches the extending portion 11. At the longitudinal center of the second slot 14, a rectangular wide portion 14a with a wide slot width is formed. In the vertical plate portion 3, near the center in the short direction of the vertical plate portion 3, at a position outside the longitudinal direction of the vertical plate portion 3 as viewed from the pair of second slots 14, 14, a pair of rectangular first slots 15, 15 extending in the longitudinal direction are formed.

[0019] In the vertical plate portion 3, at the other end (the upper side in FIG. 4(a)) in the short direction, a pair of rectangular through holes 16, 16 are formed at both ends in the longitudinal direction. On the first surface of the vertical plate portion 3 shown in FIG. 4(a), inside the vertical plate portion 3 in the short direction from the wide portion 14a of the second slot 14, protrusions 18, 18 extending in the short direction so as to sandwich the second slot 14 are integrally provided. As shown in FIG. 4(c), when viewed from the side, the protrusion 18 has a gentle trapezoidal shape, and in this embodiment, an isosceles trapezoidal shape.

[0020] On the second surface of the vertical plate portion 3 shown in Figure 4(b), a pair of longitudinal protrusions 17, 17 are integrally formed near one side of the vertical plate portion 3 in the short direction (the lower side in Figure 4(b)) relative to a pair of first slots 15, 15. A support portion 23 is integrally provided on the second surface of the vertical plate portion 3 at the center in the longitudinal direction and on the other side in the short direction (upper side in Figure 4(b)) to rotatably support the annular portion 19.

[0021] The annular portion 19 is a drink holder for supporting beverage containers and the like from the side, which are placed in the recess 6 of the horizontal plate portion 2, and is made of a plastic, annular plate-shaped member. The annular portion 19 is integrally provided with a rectangular extension portion 21 that extends radially outward, and the tip of the extension portion 21 is integrally provided with a cylindrical shaft portion 21a that extends tangentially to the annular portion 19. The support portion 23 protrudes outward in the thickness direction of the vertical plate portion 3, more specifically towards the second surface side, and consists of a pair of first plate-like portions 24, 24 extending in the short direction of the vertical plate portion 3, and a second plate-like portion 25 extending in the longitudinal direction, and has a generally U-shape overall.

[0022] Through holes 24a, 24a are formed in the first plate-like portions 24, 24 facing each other (see Figure 4(c)), and the shaft portion 21a of the annular portion 19 is rotatably inserted into them. The second plate-like portion 25 is integrally provided with a small plate portion 25a that extends outward in the short direction of the vertical plate portion 3. When the user rotates the annular portion 19, the rectangular extension portion 21 of the annular portion 19 comes into contact with the small plate portion 25a, so that the annular portion 19 becomes perpendicular to the vertical plate portion 3 and can maintain this state.

[0023] The horizontal plate section 2 and the vertical plate section 3 are connected by inserting the second claws 8, 8 of the horizontal plate section 2 into the second slots 14, 14 of the vertical plate section 3 so that the second surface of the vertical plate section 3 and the first surface of the horizontal plate section 2 face each other. More specifically, the cylindrical portions 8a, 8a of the second claws 8, 8 of the horizontal plate section 2 are positioned on the first surface side of the vertical plate section 3 via the wide portions 14a, 14a of the second slots 14, 14 of the vertical plate section 3, so that the second claws 8, 8 are loosely fitted into the second slots 14, 14. With this configuration, the vertical plate section 3 is slidable and rotatable relative to the horizontal plate section 2 in the direction of the shorter side of the horizontal plate section 2.

[0024] The belt section 4 consists of a pair of nylon horizontal belts 27, 27 connected to the horizontal plate section 2 and the vertical plate section 3, and a single nylon vertical belt 28 connected to the horizontal belts 27, 27. One end of the horizontal belt 27 is fixed to the through hole 9a of the projection 9 of the horizontal plate portion 2, and the other end is fixed to the through hole 16 of the vertical plate portion 3 via the buckle member 29. The buckle member 29 is made of plastic and has a common configuration in which two rectangular through holes are formed side by side in the longitudinal direction on a rectangular plate-like member. The other end of the horizontal belt 27, as described above, is passed through the two through holes (not shown) of the buckle member 29, as shown in Figure 1(b).

[0025] As shown in Figure 1(b), one end of the vertical belt 28 is passed through two through holes (not shown) of a buckle member 30, which has the same configuration as the buckle member 29 of the horizontal belt 27. The vertical belt 28 is then passed through two through holes of the buckle member 29, folded back, and passed through two through holes of the buckle member 30 again. Under the above configuration, the user can adjust the connection position of the vertical belt 28 to the horizontal belt 27, i.e., the position of the horizontal plate portion 2 in the short direction, by changing the position of the buckle member 29 on the horizontal belt 27. The user can also adjust the length of the vertical belt 28 by changing the amount that one end of the vertical belt 28 is extended from the buckle member 30. The configuration of the other end of the vertical belt 28 is the same as the configuration of one end of the vertical belt 28 described above.

[0026] The spectator tray 1 according to this embodiment can be used by following the procedure below. Procedure 1-1: In the folded state (portable state) of the spectator tray 1 shown in Figure 2(b), the user detaches the claws 12, 12 of the vertical plate 3, specifically the protrusions 12a, 12a of the claws 12, 12, from the grooves 10, 10 of the horizontal plate 2, and rotates the vertical plate 3 so that the ends of the vertical plate 3 and the other end of the horizontal plate 2 (upper side in Figure 2(b)) separate from each other.

[0027] As a result, the second claws 8, 8 of the horizontal plate 2 move within the second slots 14, 14 of the vertical plate 3, reaching the other end of the second slots 14, 14 (upper side in Figure 4(a)), and the vertical plate 3 becomes perpendicular to the horizontal plate 2. At this time, the first claws 7, 7 of the horizontal plate 2 enter the first slots 15, 15 of the vertical plate 3. In this specification, "perpendicular" is not limited to 90 degrees, but also includes substantially perpendicular angles, such as 85 to 95 degrees.

[0028] Step 1-2: The user slides the vertical plate 3, which is perpendicular to the horizontal plate 2, outward in the thickness direction of the horizontal plate 2, specifically towards the first surface side of the horizontal plate 2 (upper side in Figure 1(b)). As a result, the first claws 7, 7 of the horizontal plate 2 engage with the end of one side (the lower side in Figure 4(a)) of the first slots 15, 15 of the vertical plate 3 (see Figure 1(b)), fixing the vertical plate 3 in a perpendicular position relative to the horizontal plate 2.

[0029] At this time, as shown in Figure 1(b), the protrusions 17, 17 of the vertical plate portion 3 come into contact with the edge portion 5 of the horizontal plate portion 2, causing the inner surfaces of the first claw portions 7, 7 to be pressed against the first surface of the vertical plate portion 3. As a result, the first claw portions 7, 7 firmly engage with one end of the first slots 15, 15, and the vertical plate portion 3 is more firmly fixed in a position perpendicular to the horizontal plate portion 2.

[0030] Furthermore, in step 1-2, the cylindrical portions 8a, 8a of the second claw portions 8, 8 of the horizontal plate portion 2 ride up onto the upper base portions of the trapezoidal projections 18, 18, 18, 18 of the vertical plate portion 3, as shown in Figure 1(b). This fixes the position of the cylindrical portions 8a, 8a of the second claw portions 8, 8 of the horizontal plate portion 2, and the edge portion 5 of the horizontal plate portion 2 is pressed against the second surface of the vertical plate portion 3, fixing the horizontal plate portion 2 to the vertical plate portion 3, and more firmly fixing the vertical plate portion 3 in a position perpendicular to the horizontal plate portion 2.

[0031] Steps 1-3: The user places the vertical belt 28 of the belt section 4 around their neck so that the vertical plate section 3 is positioned in front of the user, and adjusts the vertical belt 28 to the desired length using the buckle members 30, 30 according to the user's body type. Step 1-4: The user adjusts the connection position of the vertical belt 28 to the horizontal belt 27 using the buckle members 29, 29, that is, adjusts the front-to-back position of the vertical belt 28 (position in the short direction of the horizontal plate 2) so that the horizontal plate 2 becomes horizontal (see Figure 1(b)). Steps 1-5: The user rotates the annular portion 19 of the vertical plate portion 3 to make it perpendicular to the vertical plate portion 3, i.e., horizontal (see Figure 1(b)).

[0032] By following these simple steps, the user can prepare the spectator tray 1 for use. For example, when watching sports at a stadium or going hiking, beverage containers can be placed in the recesses 6 of the horizontal plate section 2 through the ring section 19, or food and other items can be placed on parts of the horizontal plate section 2 other than the recesses 6. Steps 1-3 and 1-4 above only need to be performed once by the user; they can be omitted on subsequent uses, making it even easier to prepare the spectator tray 1 for use.

[0033] In this embodiment, the spectator tray 1 allows the tilt of the horizontal plate portion 2 to be adjusted and kept horizontal by adjusting the connection position of the vertical belt 28 to the horizontal belts 27, 27 of the belt portion 4 using buckle members 29, 29, thereby allowing beverages and food to be placed stably on the horizontal plate portion 2.

[0034] Furthermore, when the user hangs the vertical belt 28 around their neck, the vertical plate portion 3, which is fixed perpendicular to the horizontal plate portion 2, comes into contact with and is supported by the user's chest or abdomen. In other words, the vertical plate portion 3 functions as a supported part that is supported by the user's chest or abdomen, thereby allowing the horizontal plate portion 2 to be kept more stably horizontal.

[0035] As described above, the spectator tray 1 according to this embodiment does not require the user to sit on a chair or the like and support the horizontal board 2 on their knees, as is the case with conventional spectator trays. Therefore, there is no need to keep both knees together and maintain the same posture while being careful to prevent the horizontal board 2 from tilting. Consequently, the user can cross or uncross their legs and use the spectator tray 1 in a relaxed and comfortable posture. In addition, the user can use the spectator tray 1 while standing without sitting on a chair or the like.

[0036] Furthermore, the spectator tray 1 according to this embodiment can be folded by following the procedure below. Procedure 2-1: In the viewing tray 1 in use as shown in Figure 1(a), the user slides the vertical plate 3 outward in the thickness direction of the horizontal plate 2, specifically to the second surface side of the horizontal plate 2 (downward side in Figure 1(b)). This releases the locking between the first claws 7, 7 of the horizontal plate 2 and one end of the first slots 15, 15 of the vertical plate 3 (downward side in Figure 4(a)).

[0037] Step 2-2: The user rotates the vertical plate 3 so that the ends of the other side (upper side in Figure 2(b)) of the vertical plate 3 and the horizontal plate 2 come closer together, and slides the vertical plate 3 toward the other side in the shorter direction (down and to the right in Figure 1(a)).

[0038] As a result, the second claws 8, 8 of the horizontal plate 2 move within the second slots 14, 14 of the vertical plate 3 and reach the end of one side of the second slots 14, 14 (the lower side in Figure 4(a)), so that the vertical plate 3 is at a 0-degree angle to the horizontal plate 2. At this time, the claws 12, 12 of the vertical plate 3, more specifically the protrusions 12a, 12a of the claws 12, 12, engage with the grooves 10, 10 of the horizontal plate 2, thereby fixing the vertical plate 3 to the horizontal plate 2. Furthermore, the first claws 7, 7 of the horizontal plate 2 escape from the first slots 15, 15 of the vertical plate 3 when the vertical plate 3 rotates. Also, the annular portion 19 of the vertical plate 3 rotates and folds up by contacting the first surface of the horizontal plate 2.

[0039] Step 2-3: The user hooks the vertical belt 28 of the belt section 4 onto the plate-like portions 9b, 9b of the projections 9, 9 of the horizontal plate section 2, for example, hooking the portion of the vertical belt 28 between the buckle members 29, 29 and buckle members 30, 30 onto the plate-like portions 9b, 9b. This allows the horizontal plate section 2 to be fixed to the vertical belt 28.

[0040] By following these simple steps, the user can fold the spectator tray 1 compactly into a portable state (portable state), and carry it freely, for example, by slung the vertical belt 28 over their shoulder. Furthermore, when storing the spectator tray 1, the user can save space by keeping it in the portable state.

[0041] As described above, according to this embodiment, it is possible to switch between the usage state and the portable state with a simple procedure, and when in use, the tilt of the horizontal plate section 2 for placing beverages and food can be easily adjusted to maintain a horizontal position, thus realizing a user-friendly, foldable spectator tray 1 that can be used in a comfortable posture. Spectator tray 1 has a simple structure, achieving low cost by using nylon for the belt section 4 and plastic for all other parts. However, the materials of each part of spectator tray 1 are not limited to nylon and plastic.

[0042] The spectator tray 1 is equipped with a buckle member 29 as a fastener that connects the vertical belt 28 to the horizontal belts 27, 27 and allows the connection position to be changed, and a buckle member 30 as a fastener for adjusting the length of the vertical belt 28, but is not limited to these, and other fasteners having the same function as the buckle members 29 and 30 may be used. The spectator tray 1 has two of each of the first claw portion 7, second claw portion 8, and groove portion 10 on the horizontal plate portion 2, and two of each of the first slot 15, second slot 14, and claw portion 12 on the vertical plate portion 3, but the number is not limited to these, and for example there may be three of each.

[0043] The spectator tray 1 may also be configured such that the horizontal belts 27, 27 are omitted, and the belt section 4 consists only of vertical belts 28, with both ends of the vertical belts 28 fixed to the through holes 16, 16 of the vertical plate section 3. In this configuration as well, when the user hangs the vertical belts 28 of the spectator tray 1 around their neck, the vertical plate section 3, which is fixed perpendicular to the horizontal plate section 2, comes into contact with and is supported by the user's chest or abdomen, thereby keeping the horizontal plate section 2 horizontal. Therefore, a user-friendly, foldable spectator tray 1 that can be used in a comfortable posture can be realized. [Explanation of symbols]

[0044] 1 Spectator Tray 2 Horizontal plate part 3. Vertical board section 4 Belt section 7 1st claw part 8 Second claw part 10 grooves 11 Extension 12. Claw part 14. Slot 2 15. Slot 1 18 Protrusion 19 Ring section 23 Support part 27 Horizontal belt 28 Vertical belt 29 Buckle component 30 Buckle components

Claims

1. It consists of a tray-shaped horizontal plate having one side extending in a straight line, a vertical plate having one side extending in a straight line opposite to the side of the horizontal plate and being rotatable and slidable relative to the horizontal plate, and a belt portion connected to the horizontal plate and the vertical plate. By rotating and sliding the vertical plate portion relative to the horizontal plate portion, it is possible to switch between a first state in which the vertical plate portion overlaps with the horizontal plate portion and a second state in which the vertical plate portion is substantially perpendicular to the horizontal plate portion. The belt portion consists of a pair of horizontal belts connecting two ends of the horizontal plate portion that are away from one side and two ends of the vertical plate portion that are away from one side and that correspond to the two ends of the horizontal plate portion, and a single vertical belt connected to first fasteners provided on each of the pair of horizontal belts. A spectator tray characterized in that the position of the first fastener in the pair of horizontal belts can be changed.

2. The spectator tray according to claim 1, characterized in that the vertical belt is provided with a second fastener for adjusting the length of the vertical belt.

3. The aforementioned horizontal plate portion is provided with a first claw portion and a second claw portion on one side. The vertical plate portion has a first slot facing the first claw portion of the horizontal plate portion in the second state, and a second slot facing the second claw portion of the horizontal plate portion and extending toward one side of the vertical plate portion. The second claw portion of the horizontal plate portion is loosely fitted into the second slot of the vertical plate portion so that the vertical plate portion can rotate and slide relative to the horizontal plate portion. The spectator tray according to claim 2, characterized in that the first claw portion of the horizontal plate portion engages with the first slot of the vertical plate portion in the second state, thereby fixing the vertical plate portion to the horizontal plate portion.

4. The spectator tray according to claim 3, characterized in that the vertical plate portion is provided with a projection for fixing the position of the second claw portion of the horizontal plate portion in the second state.

5. The aforementioned vertical plate portion is provided with a claw on one side, The horizontal plate portion has a groove formed therein that faces the claw portion of the vertical plate portion in the first state. The spectator tray according to claim 4, characterized in that the claw portion of the vertical plate portion engages with the groove portion of the horizontal plate portion in the first state, thereby fixing the vertical plate portion to the horizontal plate portion.

6. The horizontal plate portion and the vertical plate portion are rectangular in shape. The spectator tray according to claim 5, characterized in that the length of the vertical plate portion is shorter in the shorter direction than the length of the horizontal plate portion.

7. It consists of a tray-shaped horizontal plate portion having one side extending in a straight line, a vertical plate portion having one side extending in a straight line opposite to the side of the horizontal plate portion and being rotatable and slidable relative to the horizontal plate portion, and a belt portion. By rotating and sliding the vertical plate portion relative to the horizontal plate portion, it is possible to switch between a first state in which the vertical plate portion overlaps with the horizontal plate portion and a second state in which the vertical plate portion is substantially perpendicular to the horizontal plate portion. The spectator tray is characterized in that the belt portion consists of a belt connecting two ends of the vertical plate portion that are separated from one side.

Images