tent

Abstract

This invention aims to improve the ventilation performance of tents. [Solution] The tent T1 comprises a first support pole 110a having a first apex 110a and a tent sheet 200. The tent sheet 200 has a first sheet 210a, a first engaging portion 220a, and a first rising sheet 230a. The first sheet 210a has a first side 211a located below the first apex 110a of the first support pole 100a. The first engaging portion 220a engages with the first apex 110a of the first support pole 100a. The first rising sheet 230a rises from the first side 211a of the first sheet 210a to the first engaging portion 220a. The first rising sheet 230a has a ventilation opening.

Description

Technical Field

[0001] The present invention relates to a tent.

Background Art

[0002] The following Patent Document 1 describes a ventilation mechanism of a conventional tent. This ventilation mechanism of the tent is composed of a ventilation hole provided in the wall surface of the flysheet of the tent and a hood-shaped blind provided so as to cover the ventilation hole in the flysheet.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the ventilation mechanism of the conventional tent, since the ventilation hole is covered with a hood-shaped blind, the blind may interfere with the flow of air passing through the ventilation hole.

[0005] The present invention aims to improve the ventilation performance of the tent.

Means for Solving the Problems

[0006] The tent according to one aspect of the present invention includes a first support part having a first top part and a tent sheet. The tent sheet has a first sheet, a first engaging part, and a first rising sheet. The first sheet has a first side located below the first top part of the first support part. The first engaging part is engaged with the first top part of the first support part. The first rising sheet rises from the first side of the first sheet to the first engaging part. The first rising sheet has a ventilation opening.

[0007] A tent according to another aspect of the present invention comprises a third support section, a fourth support section, and a tent sheet. The third support section has a third support pole that is convex upward and is substantially arc-shaped, substantially V-shaped, or substantially U-shaped. The fourth support section has a fourth support pole that is convex upward and is substantially arc-shaped, substantially V-shaped, or substantially U-shaped. The third support pole and the fourth support pole intersect. The tent sheet comprises a second sheet, a third engaging section, a fourth engaging section, a hanging sheet, and a third rising sheet. The second sheet is positioned below the intersection of the third and fourth support poles. The third engaging section is provided on the second sheet and engages with the third support pole. The fourth engaging section is provided on the second sheet and engages with the fourth support pole. The hanging sheet is positioned below the second sheet. The third rising sheet rises from the hanging sheet to the second sheet. The third rising sheet has ventilation openings. [Effects of the Invention]

[0008] In the case of a tent according to any of the above embodiments of the present invention, the ventilation performance of the tent is improved because the first or third upright sheet has a ventilation opening. [Brief explanation of the drawing]

[0009] [Figure 1A] This is a schematic perspective view of the tent according to Embodiment 1 of the present invention, showing the front, top, and right side views. [Figure 1B] This is a schematic perspective view of the tent of Example 1, showing the back, top, and left side. [Figure 1C] This is a schematic side view of the tent in Example 1. [Figure 2A] This is a schematic front view of the support pole of the tent in Example 1. [Figure 2B] This is a schematic front view of a support pole for another embodiment of the tent of Example 1. [Figure 2C] This is a schematic front view of a support pole for another embodiment of the tent of Example 1. [Figure 2D] This is a schematic front view of a support pole for another embodiment of the tent of Example 1. [Figure 3A] This is a schematic perspective view of the tent according to Embodiment 2 of the present invention, showing the front, top, and right side views. [Figure 3B] This is a schematic perspective view of the tent of Example 2, showing the back, top, and left side. [Figure 3C] This is a schematic side view of the tent in Example 2. [Figure 4A] This is a schematic perspective view of the tent according to Embodiment 3 of the present invention, shown from the front, top, and right side. [Figure 4B] This is a schematic perspective view of the tent of Example 3, showing the back, top, and left side. [Figure 4C] This is a schematic side view of the tent in Example 3. [Modes for carrying out the invention]

[0010] The following describes several embodiments of the present invention, including Embodiments 1 to 3 and their design modifications. It should be noted that the components of the embodiments and design modifications described below can be combined with each other, as long as they do not contradict each other. Furthermore, the materials, shapes, dimensions, numbers, and arrangements of the components in each embodiment and design modification described below are merely examples, and can be arbitrarily modified as long as similar functions can be achieved. [Examples]

[0011] Hereinafter, a tent T1 according to a plurality of embodiments including Embodiment 1 of the present invention and its design modification examples will be described with reference to FIGS. 1A to 2B. FIGS. 1A to 2B show the tent T1 of Embodiment 1. FIGS. 1A and 1B show the Z-Z' direction, the Y-Y' direction (first direction), and the X-X' direction (second direction). The Z-Z' direction is the height direction of the tent T1, including the upward Z direction and the downward Z' direction. The Y-Y' direction is the front-rear direction of the tent T1 that is substantially orthogonal to the Z-Z' direction, including the forward Y direction and the rearward Y' direction. The X-X' direction is substantially orthogonal to the Z-Z' direction and the Y-Y' direction, and includes the X direction and the X' direction.

[0012] The tent T1 includes a support portion (one first support portion). This support portion has a support pole 100a (one first support pole). The support pole 100a is preliminarily curved or bent into a substantially arc shape convex upward (see FIG. 2B), a substantially V shape (see FIG. 2A), or a substantially U shape (see FIGS. 2C and 2D). In addition, the "substantially U shape" in this specification shall include the "substantially concave shape" unless it is specified to be excluded (see FIGS. 2C and 2D).

[0013] The support pole 100a has a plurality of cylindrical or rod-shaped parts. The plurality of parts are arranged in the longitudinal direction of the support pole 100a, and may be configured to include a plurality of pairs of adjacent two parts and the adjacent two parts of each pair are joined by a joint, or may be configured such that the adjacent two parts of each pair are rotatably connected.

[0014] The support pole 100a has a top 110a (first top), a first lower part 120a, and a second lower part 130a. When the support pole 100a is in a substantially arc shape convex upward (see FIG. 2B), the top 110a is in a substantially arc shape convex upward, the first lower part 120a extends in a first diagonal direction from one end of the top 110a, and the second lower part 130a extends in a second diagonal direction from the other end of the top 110a. When the support pole 100a is in a substantially V shape convex upward (see FIG. 2A), the top 110a is in a substantially V shape convex upward, the first lower part 120a extends in a first diagonal direction from one end of the top 110a, and the second lower part 130a extends in a second diagonal direction from the other end of the top 110a. When the support pole 100a is in a substantially U shape convex upward (see FIGS. 2C and 2D), the top 110a extends linearly in the X-X' direction or is in a substantially U shape convex upward, the first lower part 120a extends in a first diagonal direction from one end of the top 110a, and the second lower part 130a extends in a second diagonal direction from the other end of the top 110a.

[0015] Note that the first diagonal direction is a direction including components in the Z' direction, the X direction, and the Y' direction (see FIGS. 1A and 1B), a direction including components in the Z' direction and the X direction (not shown), or a direction including components in the Z' direction, the X direction, and the Y direction (not shown). The second diagonal direction is a direction including components in the Z' direction, the X' direction, and the Y' direction (see FIGS. 1A and 1B), a direction including components in the Z' direction and the X' direction (not shown), or a direction including components in the Z' direction, the X' direction, and the Y direction (not shown).

[0016] Note that the support pole 100a is not limited to being pre-curved or bent as described above. When not in use, it extends linearly, while when in use, the top 110a or the whole of the support pole 100a may be curved or bent into a substantially arc shape, substantially V shape, or substantially U shape (excluding "substantially concave shape") convex upward.

[0017] The tent T1 further includes a tent sheet 200. The tent sheet 200 has a sheet 210a (one first sheet), an engaging part 220a (one first engaging part), and a rising sheet 230a (one first rising sheet).

[0018] Sheet 210a is a flexible sheet made of polyester taffeta, polyester oxford, nylon, or cotton. In cross-sectional views along the Z-Z' and X-X' directions, sheet 210a may be approximately convex upwards in a roughly arc shape (Figures 1A and 1B), approximately V-shape (not shown), or approximately U-shape (not shown), but is not limited to these. Sheet 210a may be flat and flex in an approximately convex upwards in a roughly arc shape, approximately V-shape, or approximately U-shape.

[0019] Sheet 210a has a first side 211a on the Y' direction side, a second side 212a on the Y direction side, a third side 213a on the X direction side, a fourth side 214a on the X' direction side, a first corner, a second corner, a third corner, and a fourth corner. The first corner is the corner where the first side 211a and the third side 213a meet, the second corner is the corner where the first side 211a and the fourth side 214a meet, the third corner is the corner where the second side 212a and the third side 213a meet, and the fourth corner is the corner where the second side 212a and the fourth side 214a meet.

[0020] If sheet 210a has an upwardly convex, approximately arc shape in the cross-sectional view described above, then the first side 211a and the second side 212a of sheet 210a will also have an upwardly convex, approximately arc shape. If sheet 210a has an upwardly convex, approximately V shape in the cross-sectional view described above, then the first side 211a and the second side 212a of sheet 210a will also have an upwardly convex, approximately V shape. If sheet 210a has an upwardly convex, approximately U shape in the cross-sectional view described above, then the first side 211a and the second side 212a of sheet 210a will also have an upwardly convex, approximately U shape.

[0021] In either case, the first side 211a of the sheet 210a has a top, a first bottom, and a second bottom, and the top of the first side 211a of the sheet 210a is positioned at a distance from the top 110a of the support pole 100a in the Z' direction. The top of the first side 211a of the sheet 210a may be positioned at a distance from the top 110a of the support pole 100a in the Z' direction (downward), or it may be positioned at a distance from the top 110a of the support pole 100a at an oblique angle (downward) including components in the Z' and Y directions, or it may be positioned at a distance from the top 110a of the support pole 100a at an oblique angle (downward) including components in the Z' and Y directions. The first lower part 120a of the support pole 100a is positioned along the first lower part of the first side 211a of the sheet 210a, and the lower end of the first lower part 120a is inserted into and held by a retainer (not shown) such as a bottomed cylindrical cap or fixing ring provided at the first corner of the sheet 210a. The second lower part 130a of the support pole 100a is positioned along the second lower part of the first side 211a of the sheet 210a, and the lower end of the second lower part 130a is inserted into and held by a retainer (not shown) such as a bottomed cylindrical cap or fixing ring provided at the second corner of the sheet 210a.

[0022] The rising sheet 230a rises from the first side 211a of the sheet 210a to the engaging portion 220a in a direction including a component in the Z direction (Z direction, diagonal direction including components in the Z and Y directions, or diagonal direction including components in the Z and Y' directions), and has one or more ventilation openings.

[0023] At least a portion of the riser sheet 230a may be made of mesh sheets 231a. For example, the riser sheet 230a can be configured to have a sheet body, one or more through holes, and one or more mesh sheets 231a (see Figures 1A and 1B). In this case, the sheet body is a flexible sheet made of the same material as sheet 210a, one or more through holes penetrate the sheet body, and one or more mesh sheets 231a are fixed to the sheet body so as to cover one or more through holes and form one or more ventilation openings. In this case, the portion of the sheet body around one or more mesh sheets 231a may have pockets for storing air fresheners, etc., but it is not required to have pockets. Alternatively, the entire riser sheet 230a may be made of mesh sheets 231a (not shown). In this case, the mesh sheets 231a form ventilation openings.

[0024] Note that one or more mesh sheets 231a can be omitted. In this case, one or more through holes in the rising sheet 230a form one or more ventilation openings in the rising sheet 230a.

[0025] In any of the above configurations, the rising sheet 230a has an upper edge on the Z-direction side and a lower edge on the Z'-direction side (opposite the upper edge).

[0026] The upper edge of the rising sheet 230a may be a roughly convex arc (not shown), roughly V-shape (see Figures 1A and 1B), or roughly U-shape (not shown) that is convex upward along the top 110a of the support pole 100a.

[0027] If sheet 210a has an upwardly convex, approximately arc-shaped, approximately V-shaped, or approximately U-shaped form in the above cross-sectional view, the lower edge of the rising sheet 230a is also upwardly convex, approximately arc-shaped, approximately V-shaped, or approximately U-shaped form, following the shape of the top of the first edge 211a of sheet 210a. Sheet 210a and rising sheet 230a can be separate components. In this case, the lower edge of rising sheet 230a is connected to the top of the first edge 211a of sheet 210a. Sheet 210a and rising sheet 230a can also be a single sheet. In this case, the lower edge of rising sheet 230a and the top of the first edge 211a of sheet 210a are integrally connected.

[0028] The engaging portion 220a only needs to engage with the top portion 110a of the support pole 100a. For example, the engaging portion 220a can be configured to have a sleeve 221a. The sleeve 221a can be a flexible tube made of the same material as the sheet 210a.

[0029] If the top 110a of the support pole 100a is in a substantially arc shape that is convex upward (see Figure 2B), the sleeve 221a is in a substantially arc shape that is convex upward along the upper edge of the rising sheet 230a and is connected to or integrally connected to the upper edge of the rising sheet 230a. If the top 110a of the support pole 100a is in a substantially V shape that is convex upward (see Figure 2A), the sleeve 221a is in a substantially V shape that is convex upward along the upper edge of the rising sheet 230a and is connected to or integrally connected to the upper edge of the rising sheet 230a. If the top 110a of the support pole 100a extends linearly in the X-X' direction (see Figure 2C), the sleeve 221a extends linearly in the X-X' direction along the upper edge of the rising sheet 230a and is connected to or integrally connected to the upper edge of the rising sheet 230a. If the top 110a of the support pole 100a is roughly U-shaped with an upward convexity (see Figure 2D), the sleeve 221a is roughly U-shaped with an upward convexity along the upper edge of the rising sheet 230a and is connected to or integrally connected to the upper edge of the rising sheet 230a. There can also be multiple sleeves 221a. Multiple sleeves 221a are arranged at intervals along the upper edge of the rising sheet 230a. The top 110a of the support pole 100a is inserted into one or more sleeves 221a. In this way, the top 110a of the support pole 100a supports one or more sleeves 221a, the rising sheet 230a, and the sheet 210a.

[0030] The tent T1 may further include a blind 300a. The blind 300a is a blind curtain (Figures 1A and 1B), a flexible sheet or closing plate made of the same material as the riser sheet 230a, and is provided on the riser sheet 230a and is configured to open and close one or more ventilation openings of the riser sheet 230a. The blind 300a is optional.

[0031] Tent T1 may further include another support section (first and second support section). This support section has a support pole 100b (first and second support pole). Support pole 100b has the same configuration as support pole 100a and has a top section 110b (first and second top section), a first lower section 120b, and a second lower section 130b. The length of support pole 100b is smaller than the length of support pole 100a, but may be the same or larger.

[0032] The top portion 110b of the support pole 100b is positioned at a distance from the top portion 110a of the support pole 100a in the Y direction and in the Z direction relative to the top of the second side 212a of the sheet 210a. The first lower portion 120b of the support pole 100b is positioned along the first lower portion of the second side 212a of the sheet 210a, and the lower end of the first lower portion 120b is inserted into and held by a retainer (not shown) such as a bottomed cylindrical cap or fixing ring provided at the third corner of the sheet 210a. The second lower portion 130b of the support pole 100b is positioned along the second lower portion of the second side 212a of the sheet 210a, and the lower end of the second lower portion 130b is inserted into and held by a retainer (not shown) such as a bottomed cylindrical cap or fixing ring provided at the fourth corner of the sheet 210a. The Y-Y' direction is also the alignment direction between the top 110b of support pole 100b and the top 110a of support pole 100a.

[0033] The tent sheet 200 may further have an engaging portion 220b (a first engaging portion and a second engaging portion). The engaging portion 220b only needs to engage with the top portion 110b of the support pole 100b. For example, the engaging portion 220b can be configured to have a sleeve 221b. The sleeve 221b may be a flexible tube made of the same material as the sheet 210a.

[0034] The sleeve 221b may be in the shape of a roughly convex upward arc (not shown), a roughly convex upward V (see Figures 1A and 1B), a straight line extending in the X-X' direction (not shown), or a roughly convex upward U (not shown), along the top 110b of the support pole 100b. It is connected to or integrally connected to the top of the second side 212a of the sheet 210a. There can be multiple sleeves 221b. Multiple sleeves 221b are arranged at intervals along the second side 212a of the sheet 210a. The top 110b of the support pole 100b is inserted into one or more sleeves 221b. In this way, the top 110b of the support pole 100b supports one or more sleeves 221b and the sheet 210a.

[0035] The tent sheet 200 may further include a riser sheet 230b (first riser sheet), a first extension sheet 240a, a second extension sheet 240b, an opening 250, and a door sheet 260 (first sheet).

[0036] The rising sheet 230b is positioned on the Z' side relative to the engaging portion 220b. The rising sheet 230b rises from the upper edge (first edge) of the door sheet 260 to the engaging portion 220b in a direction including a component in the Z direction (Z direction, diagonal direction including components in the Z and Y directions, or diagonal direction including components in the Z and Y' directions), and has one or more ventilation openings. The rising sheet 230b may be located on the Z' side of the rising sheet 230a, or vice versa, or the rising sheet 230b and the rising sheet 230a may be located at approximately the same height in the Z-Z' direction.

[0037] The riser sheet 230b can have the same configuration as the riser sheet 230a. The riser sheet 230b may be composed of at least a portion of the mesh sheet 231b. The ventilation openings of the riser sheet 230b may be one or more mesh sheets 231b that cover one or more through holes in the sheet body, or they may be mesh sheets 231b that make up the entire riser sheet 230b, or if the mesh sheets 231b are omitted, they may be one or more through holes in the sheet body. The portion of the sheet body surrounding one or more mesh sheets 231b may have pockets for storing air fresheners, etc., but it is not required to have them.

[0038] The rising sheet 230b has an upper edge on the Z-direction side and a lower edge on the Z'-direction side. The upper edge of the rising sheet 230b may be a roughly convex arc (not shown), roughly V-shaped (see Figures 1A and 1B), or roughly U-shaped (not shown) that protrudes upward along the top 110b of the support pole 100b. One or more sleeves 221b are connected to or integrally attached to the upper edge of the rising sheet 230b. The multiple sleeves 221b are arranged at intervals along the upper edge of the rising sheet 230b. Note that the rising sheet 230b is optional.

[0039] The first extension sheet 240a is a flexible, roughly triangular sheet made of the same material as sheet 210a, and has a first hypotenuse on the Y' direction side and a second hypotenuse on the Y direction side. The first hypotenuse of the first extension sheet 240a is connected to or integrally joined to the X-direction side portion and the first lower part of the second side 212a of sheet 210a. The first extension sheet 240a may extend in the Y direction from the second side 212a of sheet 210a, or it may extend in an oblique direction including components in the Y and X' directions, or it may extend only in the X' direction. The second extension sheet 240b is a flexible, roughly triangular sheet made of the same material as the first extension sheet 240a, and has a first hypotenuse on the Y' direction side and a second hypotenuse on the Y direction side. The first hypotenuse of the second extension sheet 240b is connected to or integrally joined to the X'-direction side portion and the second lower part of the apex of the second side 212a of sheet 210a. The second extension sheet 240b may extend in the Y direction from the second side 212a of sheet 210a, or it may extend in an oblique direction including components in the Y and X directions, or it may extend in the X direction. Note that the first extension sheet 240a and the second extension sheet 240b are optional.

[0040] When a rising sheet 230b, a first extension sheet 240a, and a second extension sheet 240b are provided, the opening 250 is demarcated by the lower edge of the rising sheet 230b, the second slanted edge of the first extension sheet 240a, and the second slanted edge of the second extension sheet 240b. In this case, the door sheet 260 has its upper edge connected to or integrally connected to the lower edge of the rising sheet 230b and closes the opening 250 so that it can be opened and closed.

[0041] If a rising sheet 230b is provided, but the first extension sheet 240a and the second extension sheet 240b are not provided, the opening 250 is partitioned by the lower edge of the rising sheet 230b, the first lower part of the sheet 210a, and the second lower part of the sheet 210a. In this case, the door sheet 260 has its upper edge connected to or integrally connected to the lower edge of the rising sheet 230b and closes the opening 250 so that it can be opened and closed.

[0042] If the rising sheet 230b, the first extension sheet 240a, and the second extension sheet 240b are not provided, the opening 250 is partitioned by the engaging portion 220b, the first lower part of the sheet 210a, and the second lower part of the sheet 210a. In this case, the door sheet 260 has its upper edge connected to or integrally connected to the engaging portion 220b and closes the opening 250 so that it can be opened and closed.

[0043] The door sheet 260 of the tent sheet 200 may have a door sleeve 261, a door sleeve 262, a first upper insertion part (not shown), a second upper insertion part (not shown), a first lower insertion part (not shown), and a second lower insertion part (not shown). The door sleeves 261 and 262 are provided intersecting on the central part of the door sheet 260. The first upper insertion part and the second upper insertion part are provided at the two upper corners of the door sheet 260. The first upper insertion part is a bottomed cylindrical cap that opens toward the upper end of the door sleeve 261, and the second upper insertion part is a bottomed cylindrical cap that opens toward the upper end of the door sleeve 262. The lower corners of the door sheet 260 are provided with a first lower insertion part and a second lower insertion part, respectively. The first lower insertion part is a bottomed cylindrical cap that opens toward the lower end of the door sleeve 262, and the second lower insertion part is a bottomed cylindrical cap that opens toward the lower end of the door sleeve 261.

[0044] The tent T1 may further include an extension section 400. The extension section 400 has an extension pole 410 and an extension pole 420. The extension poles 410 and 420 each have a plurality of cylindrical or rod-shaped parts. The plurality of parts include a plurality of pairs of adjacent parts, and the two adjacent parts in each pair may be connected by a joint, or they may be connected so as to be rotatable. The extension pole 410 is inserted through the door sleeve 261, with the upper end of the extension pole 410 inserted into the first upper insertion part and the lower end of the extension pole 410 inserted into the second lower insertion part. The extension pole 420 is inserted through the door sleeve 262, with the upper end of the extension pole 420 inserted into the second upper insertion part and the lower end of the extension pole 420 inserted into the first lower insertion part. This maintains the state in which the door sheet 260 is extended by the extension poles 410 and 420. The extension portion 400a is optional. In this case, the door sleeves 261 and 262, the first upper insertion portion, the second upper insertion portion, the first lower insertion portion, and the second lower insertion portion of the door sheet 260 are also omitted. The door sheet 260 is also optional.

[0045] The tent T1 may further include a blind 300b. The blind 300b has the same configuration as the blind 300a, is provided on the riser sheet 230b, and is configured to open and close one or more ventilation openings in the riser sheet 230b. The blind 300b is optional.

[0046] The tent T1 may further include another support section (the other first support section). This support section has a support pole 100c (the other first support pole). The support pole 100c has the same configuration as the support pole 100a and has a top section 110c, a first lower section 120c, and a second lower section 130c. The length dimension of the support pole 100c is preferably the same as the length dimension of the support pole 100a, but it may be different.

[0047] The top 110c of support pole 100c is positioned at a distance from the top 110a of support pole 100a in the Y' direction. The first lower part 120c of support pole 100c intersects with the first lower part 120a of support pole 100a, and the lower end of the first lower part 120c is inserted into and held by another retaining device (not shown), such as a bottomed cylindrical cap or fixing ring, provided at the third corner of sheet 210a. The second lower part 130c of support pole 100c intersects with the second lower part 130a of support pole 100a, and the lower end of the second lower part 130c is inserted into and held by another retaining device (not shown), such as a bottomed cylindrical cap or fixing ring, provided at the fourth corner of sheet 210a. Note that support pole 100c is optional.

[0048] The tent sheet 200 may further include a sheet 210b (the other first sheet), an engaging portion 220c (the other first engaging portion), and a rising sheet 230c (the other first rising sheet).

[0049] Sheet 210b is a flexible sheet made of the same material as sheet 210a, and has the same configuration as sheet 210a except for the following configuration.

[0050] Sheet 210b has a first side 211b on the Y-direction side, a second side 212b on the Y'-direction side, a third side 213b on the X-direction side, a fourth side 214b on the X'-direction side, a first corner, and a second corner. The first side 211b is shorter than the second side 212b and has an upwardly convex, approximately circular arc shape (not shown), an upwardly convex, approximately V-shape (see Figure 2A), a straight line extending in the X-X' direction (not shown), or an upwardly convex, approximately U-shape (not shown). The first side 211b is positioned at a distance from the top 110c of the support pole 100c on the Z'-direction side. The first side 211b may be positioned on the Z' side (downward) relative to the top 110c of the support pole 100c, or it may be positioned at a distance from the top 110c of the support pole 100c at an oblique angle (downward) including components in the Z' and Y directions, or it may be positioned at a distance from the oblique angle (downward) including components in the Z' and Y' directions. The second side 212b of the sheet 210b is a roughly convex upward arc, a roughly convex upward V-shape, or a roughly convex upward U-shape. The third side 213b slopes downward in the Y' direction from the X-side end of the first side 211b to the X-side end of the second side 212b and is integrally connected to the first lower part of the sheet 210a. The fourth side 214b slopes downward in the Y' direction from the X' end of the first side 211b to the X' end of the second side 212b and is integrally connected to the second lower part of the sheet 210a. The first corner is the corner where the second side 212b and the third side 213b meet, and the second corner is the corner where the second side 212b and the fourth side 214b meet. The sheet 210b is optional.

[0051] The rising sheet 230c is positioned on the Z' side relative to the engaging portion 220c and is positioned opposite the rising sheet 230a with a gap in the Y' side. The rising sheet 230c rises from the first side 211b of the sheet 210b to the engaging portion 220c in a direction including a component in the Z direction (Z direction, diagonal direction including components in the Z and Y directions, or diagonal direction including components in the Z and Y' directions), and has one or more ventilation openings.

[0052] The riser sheet 230c can have the same configuration as the riser sheet 230a. The riser sheet 230c may be composed of at least a portion of the mesh sheet 231c. The ventilation openings of the riser sheet 230c may be one or more mesh sheets 231c that cover one or more through holes in the sheet body, or they may be mesh sheets 231c that make up the entire riser sheet 230b, or if the mesh sheets 231c are omitted, they may be one or more through holes in the sheet body. The portion of the sheet body surrounding one or more mesh sheets 231c may have pockets for storing air fresheners, etc., but it is not required to have them.

[0053] The rising sheet 230c has an upper edge on the Z-direction side and a lower edge on the Z'-direction side. The upper edge of the rising sheet 230c may be a roughly convex arc (not shown), roughly V-shaped (see Figures 1A and 1B), or roughly U-shaped (not shown) that protrudes upward along the top 110c of the support pole 100c.

[0054] The lower edge of the riser sheet 230c is approximately convex upwards in a roughly circular arc, V-shape, or U-shape, following the shape of the first edge 211b of the sheet 210b. The lower edge of the riser sheet 230c is connected to or integrally joined with the first edge 211b of the sheet 210b. Note that the riser sheet 230c is optional.

[0055] The engaging portion 220c only needs to engage with the top portion 110c of the support pole 100c. For example, the engaging portion 220c can be configured to have a sleeve 221c. The sleeve 221c can be a flexible tube made of the same material as the sheet 210a.

[0056] The sleeve 221c may be approximately an upwardly convex, roughly arc-shaped (not shown), approximately an upwardly convex, roughly V-shaped (see Figure 2A), straight (not shown) extending in the X-X' direction, or approximately an upwardly convex, roughly U-shaped (not shown), along the top 110c of the support pole 100c. Multiple sleeves 221c are possible. One or more sleeves 221c are connected to or integrally connected to the upper edge of the rising sheet 230c. Multiple sleeves 221b are arranged at intervals along the upper edge of the rising sheet 230b. The top 110c of the support pole 100c is inserted into one or more sleeves 221c. In this way, the top 110c of the support pole 100c supports one or more sleeves 221c, the rising sheet 230c, and the sheet 210b. The engaging portion 220c is optional.

[0057] The tent T1 may further include a blind 300c. The blind 300c has the same configuration as the blind 300a, is provided on the riser sheet 230c, and is configured to open and close one or more ventilation openings in the riser sheet 230c. The blind 300c is optional.

[0058] The tent sheet 200 may further have a central sheet 270.

[0059] The central sheet 270 may be made of a flexible sheet made of the same material as sheet 210a, or it may be made of a flexible sheet that is thicker and stronger than sheet 210a, etc. The central sheet 270 is substantially rhombic when viewed from the Z direction, and has a first side on the Y direction side and a second side on the Y' direction side. The central sheet 270 may be provided with a transparent or translucent window, or at least a part of the central sheet 270 may be made of a mesh sheet. In either case, the first side of the central sheet 270 is connected to or integrally connected to the engaging portion 220a. The second side of the central sheet 270 is connected to or integrally connected to the engaging portion 220c. The central sheet 270 is supported by support poles 100a and 100c via engaging portions 220a and 220c. The central sheet 270 may have hanging hooks (not shown) or loop-shaped bands for detachably suspending and supporting lanterns, fans, etc. The central sheet 270 may also be provided with blinds (not shown) that can be opened and closed to cover the window or mesh sheet. The central sheet 270 is optional.

[0060] The tent T1 may also have another support section (a first support section and a second support section). This support section has a support pole 100d (a first support pole and a second support pole). The support pole 100d has the same configuration as the support pole 100a and has a top section 110d, a first lower section 120d, and a second lower section 130d. The length of the support pole 100d is preferably the same as the length of the support pole 100b, but it may be different.

[0061] The top 110d of the support pole 100d is positioned at a distance from the top 110c of the support pole 100c in the Y' direction and in the Z direction relative to the top of the second side 212b of the sheet 210b. The first lower part 120d of the support pole 100d is positioned along the first lower part of the second side 212b of the sheet 210b, and the lower end of the first lower part 120d is inserted into and held by a retainer (not shown) such as a bottomed cylindrical cap or fixing ring provided at the first corner of the sheet 210b. The second lower part 130d of the support pole 100d is positioned along the second lower part of the second side 212b of the sheet 210b, and the lower end of the second lower part 130d is inserted into and held by a retainer (not shown) such as a bottomed cylindrical cap or fixing ring provided at the second corner of the sheet 210b. Note that the support pole 100d is optional.

[0062] The tent sheet 200 may further have an engaging portion 220d (a first engaging portion and a second engaging portion). The engaging portion 220d only needs to engage with the top portion 110d of the support pole 100d. For example, the engaging portion 220d can be configured to have a sleeve 221d. The sleeve 221d may be a flexible tube made of the same material as the sheet 210a.

[0063] The sleeve 221d is shaped like an upwardly convex, approximately arc-shaped (not shown), upwardly convex, approximately V-shaped (see Figures 1A and 1B), straight (not shown) extending in the X-X' direction, or upwardly convex, approximately U-shaped (not shown), along the top 110d of the support pole 100d, and is connected to or integrally connected to the top of the second side 212b of the sheet 210b. Multiple sleeves 221d are possible. Multiple sleeves 221d are arranged at intervals along the second side 212b of the sheet 210b. The top 110d of the support pole 100d is inserted into one or more sleeves 221d. In this way, the top 110d of one or more support poles 100d supports the sleeve 221d and the sheet 210b. The engaging portion 220d is optional.

[0064] The tent sheet 200 may further include a standing sheet 230d (first standing sheet), a third extension sheet 280a, a fourth extension sheet 280b, and a rear sheet 290 (first sheet).

[0065] The third extension sheet 280a is a flexible, roughly triangular sheet made of the same material as sheet 210a, and has a first hypotenuse on the Y-direction side and a second hypotenuse on the Y'-direction side. The first hypotenuse of the third extension sheet 280a is connected to or integrally joined to the first lower part of the second side 212b of sheet 210b. The third extension sheet 280a may extend from the second side 212b of sheet 210b in the Y' direction, or in an oblique direction including components in the Y' and X' directions, or may extend only in the X' direction. The fourth extension sheet 280b is a flexible, roughly triangular sheet made of the same material as the third extension sheet 280a, and has a first hypotenuse on the Y-direction side and a second hypotenuse on the Y'-direction side. The first hypotenuse of the fourth extension sheet 280b is connected to or integrally joined to the second lower part of the second side 212b of sheet 210b. The fourth extension sheet 280b may extend in the Y' direction from the second side 212b of sheet 210b, or it may extend in an oblique direction including components in the Y' and X directions, or it may extend in the X direction. The third extension sheet 280a and the fourth extension sheet 280b are optional.

[0066] The rising sheet 230d is positioned on the Z' side relative to the engaging portion 220d. The rising sheet 230d rises from the upper edge (first edge) of the rear sheet 290 to the engaging portion 220d in a direction including a Z component (Z direction, diagonal direction including Z and Y components, or diagonal direction including Z and Y' components), and has one or more ventilation openings. The rising sheet 230d may be located on the Z' side of the rising sheet 230b, or vice versa, and the rising sheet 230d and the rising sheet 230b may be located at approximately the same height in the Z-Z' direction. If the rising sheet 230d is located on the Z' side of the rising sheet 230b and the rising sheet 230b is located on the Z' side of the rising sheet 230a, the rising sheet 230d and the rising sheet 230b may face each other in the Y-Y' direction.

[0067] The riser sheet 230d can have the same configuration as the riser sheet 230a. At least a part of the riser sheet 230d may be made of mesh sheet 231b. The ventilation openings of the riser sheet 230d may be one or more mesh sheets 231d that cover one or more through holes in the sheet body, or they may be mesh sheets 231d that make up the entire riser sheet 230d, or if the mesh sheets 231d are omitted, they may be one or more through holes in the sheet body. The area around one or more mesh sheets 231d in the sheet body may have pockets for storing air fresheners, etc., but it is not required to have them.

[0068] The rising sheet 230d has an upper edge on the Z-direction side and a lower edge on the Z'-direction side. The upper edge of the rising sheet 230d may be a roughly convex arc (not shown), roughly V-shaped (see Figures 1A and 1B), or roughly U-shaped (not shown) that protrudes upward along the top 110d of the support pole 100d. The upper edge of the rising sheet 230d is connected to or integrally connected to one or more sleeves 221d. Note that the rising sheet 230d is optional.

[0069] The rear seat 290 has an upper edge, a first side edge on the X-direction side, and a second side edge on the X'-direction side.

[0070] When a riser sheet 230d, a third extension sheet 280a, and a fourth extension sheet 280b are provided, the upper edge of the rear sheet 290 is connected to or integrally connected to the lower edge of the riser sheet 230d, the first side of the rear sheet 290 is connected to or integrally connected to the second slanted edge of the third extension sheet 280a, and the second side of the rear sheet 290 is connected to or integrally connected to the second slanted edge of the fourth extension sheet 280b.

[0071] If a riser seat 230d is provided, but the third extension seat 280a and the fourth extension seat 280b are not provided, the upper edge of the rear seat 290 is connected to or integrally connected to the lower edge of the riser seat 230d, the first side edge of the rear seat 290 is connected to or integrally connected to the first lower part of the seat 210b, and the second side edge of the rear seat 290 is connected to or integrally connected to the second lower part of the seat 210b.

[0072] If the rising seat 230d, the third extension seat 280a, and the fourth extension seat 280b are not provided, the upper edge of the rear seat 290 is connected to or integrally connected to the engaging portion 220d, the first side edge of the rear seat 290 is connected to or integrally connected to the first lower part of the seat 210b, and the second side edge of the rear seat 290 is connected to or integrally connected to the second lower part of the seat 210b.

[0073] If the support pole 100c, engaging portion 220c, central sheet 270, sheet 210b, rising sheet 230c, support pole 100d, engaging portion 220d, rising sheet 230d, third extension sheet 280a, and fourth extension sheet 280b are not provided, the upper edge of the rear sheet 290 is connected to or integrally connected to the engaging portion 220a, the first side edge of the rear sheet 290 is connected to or integrally connected to the first lower part of the sheet 210a, and the second side edge of the rear sheet 290 is connected to or integrally connected to the second lower part of the sheet 210a.

[0074] The tent T1 may further include a blind 300d. The blind 300d has the same configuration as the blind 300a, is provided on the riser sheet 230d, and is configured to open and close one or more ventilation openings in the riser sheet 230d. The blind 300d is optional.

[0075] The tent T1 described above has improved ventilation performance. This is because the rising sheet 230a rises in a direction that includes a component in the Z direction from the first side 211a of the sheet 210a to the engaging portion 220a, and has one or more ventilation openings.

[0076] The ventilation performance of tent T1 is further improved when the riser sheet 230b is provided. The reason for this is that the riser sheet 230b rises from the upper edge of the door sheet 260 to the engaging portion 220b in a direction that includes a component in the Z direction, and has one or more ventilation openings.

[0077] The ventilation performance of tent T1 is further improved when a riser sheet 230c is provided. The reasons for this are as follows: Firstly, the riser sheet 230c rises from the first side 211b of sheet 210b to the engaging portion 220c in a direction that includes a component in the Z direction, and has one or more ventilation openings. Secondly, the riser sheet 230c and the riser sheet 230a are separated and facing each other in the Y-Y' direction. As a result, air can easily enter tent T1 through one or more ventilation openings in the riser sheet 230a and flow out through one or more ventilation openings in the riser sheet 230c, or vice versa, making it easier for air to circulate inside tent T1 in the Y-Y' direction.

[0078] When the riser sheets 230b and 230c are provided, the ventilation performance of tent T1 is further improved. The reason is as follows: Because the riser sheet 230c is positioned at a distance from the riser sheet 230b in the Y' direction, air can easily enter tent T1 through one or more ventilation openings in the riser sheet 230b and exit through one or more ventilation openings in the riser sheet 230c, or vice versa, thus facilitating air circulation within tent T1 in the Y-Y' direction.

[0079] The ventilation performance of tent T1 is further improved when a riser sheet 230d is provided. The reasons for this are as follows: Firstly, the riser sheet 230d rises from the upper edge of the rear sheet 290 to the engaging portion 220d in a direction that includes a component in the Z direction, and has one or more ventilation openings. Secondly, because the riser sheet 230d is positioned at a distance from the riser sheet 230a in the Y' direction, air can easily enter tent T1 through one or more ventilation openings in the riser sheet 230a and flow out through one or more ventilation openings in the riser sheet 230d, or vice versa, thus facilitating air circulation within tent T1 in the Y-Y' direction.

[0080] When the riser sheets 230b and 230d are provided, the ventilation performance of tent T1 is further improved. The reason is as follows: Because the riser sheet 230d is positioned at a distance from the riser sheet 230b in the Y' direction, air can easily enter tent T1 through one or more ventilation openings in the riser sheet 230b and exit through one or more ventilation openings in the riser sheet 230d, or vice versa, thus facilitating air circulation within tent T1 in the Y-Y' direction. [Examples]

[0081] The following describes a tent T2 according to several embodiments of the present invention, including Embodiment 2 and its design modifications, with reference to Figures 3A to 3C. Figures 3A to 3C show the tent T2 of Embodiment 2. Figures 3A to 3B also show the X-X', Y-Y', and Z-Z' directions, similar to Figures 1A and 1B.

[0082] Tent T2 is equipped with a support section (first support section and second support section). This support section has a support pole 100b (first support pole and second support pole). The support pole 100b has one of the configurations described above.

[0083] Tent T2 further comprises a tent sheet 200'. The tent sheet 200' may have an engaging portion 220b (first engaging portion and second engaging portion), a rising sheet 230b (first rising sheet), a first extension sheet 240a, a second extension sheet 240b, an opening 250, and a door sheet 260 (first sheet). The engaging portion 220b, rising sheet 230b, first extension sheet 240a, second extension sheet 240b, opening 250, and door sheet 260 are each configured as described above. The door sheet 260 may or may not be extended by an extension portion 400. In the latter case, the extension portion 400 is omitted.

[0084] Tent T2 may be equipped with the aforementioned Blind 300b, but it is not required to be equipped with it.

[0085] The tent sheet 200' may further include a sheet 210a (first sheet) and a riser sheet 230e (first riser sheet). Sheet 210a has one of the configurations described above. Sheet 210a may have hanging hooks (not shown) or loop-shaped bands for detachably suspending and supporting lanterns, fans, etc.

[0086] The rising sheet 230e is a flexible sheet made of the same material as sheet 210a and is positioned on the Z' side relative to the engaging portion 220b. The rising sheet 230e rises from the second side 212a of sheet 210a to the engaging portion 220b in a direction that includes a component in the Z direction (Z direction, diagonal direction including components in the Z and Y directions, or diagonal direction including components in the Z and Y' directions). The rising sheet 230e may be located at approximately the same height as the rising sheet 230b, but may also be located at a different height.

[0087] The rising sheet 230e has an upper edge on the Z-direction side and a lower edge on the Z'-direction side. The upper edge of the rising sheet 230e may be a substantially convex, substantially V-shaped (see Figure 3B), or substantially U-shaped (not shown) curve that is convex upward along the top 110b of the support pole 100b. The upper edges of the rising sheet 230e and the upper edge of the rising sheet 230b are connected to or integrally joined to one or more sleeves 221b. The multiple sleeves 221b are arranged at intervals along the upper edges of the rising sheet 230e and the upper edge of the rising sheet 230b.

[0088] The riser sheet 230e may be configured without one or more ventilation openings (see Figure 3B), but like the riser sheet 230b, it may be configured with one or more ventilation openings.

[0089] Tent T2 may further include another support section (second support section). This support section has a support pole 100a (second support pole). The support pole 100a has one of the configurations described above. The support pole 100a is spaced apart from the support pole 100b in the Y' direction. The Y-Y' direction is also the direction of alignment between the support poles 100b and 100a. Note that the support pole 100a is optional.

[0090] The tent sheet 200' may further include an engaging portion 220a (second engaging portion) and a rising sheet 230a (second rising sheet). The engaging portion 220a has any of the above configurations. The rising sheet 230a can have any of the above configurations except that it does not have one or more ventilation openings, but it may also have one or more ventilation openings. The rising sheet 230a may be located at approximately the same height as the rising sheet 230e in the Z-Z' direction, but it may also be located at a different height. The engaging portion 220a and the rising sheet 230a are optional.

[0091] The tent sheet 200' may further include a standing sheet 230f (second standing sheet) and a sheet 210c (first sheet).

[0092] Sheet 210c is a flexible sheet made of the same material as sheet 210a, and has the same configuration as sheet 210a except for the following configuration.

[0093] Sheet 210c has a first side 211c on the Y-direction side, a second side 212c on the Y'-direction side, a third side 213c on the X-direction side, a fourth side 214c on the X'-direction side, a first corner, a second corner, a third corner, and a fourth corner. The first corner is the corner where the first side 211c and the third side 213c meet, the second corner is the corner where the first side 211c and the fourth side 214c meet, the third corner is the corner where the second side 212c and the third side 213c meet, and the fourth corner is the corner where the second side 212c and the fourth side 214c meet.

[0094] The first side 211c of the sheet 210c has a top, a first bottom, and a second bottom, and the top of the first side 211c of the sheet 210c is positioned at a distance from the top 110a of the support pole 100a in the Z' direction. The top of the first side 211c of the sheet 210c may be positioned at a distance from the top 110a of the support pole 100a in the Z' direction (downward), or it may be positioned at a distance from the top 110a of the support pole 100a at an oblique angle (downward) including components in the Z' and Y directions, or it may be positioned at a distance from the top 110a of the support pole 100a at an oblique angle (downward) including components in the Z' and Y directions. The first lower part of the first side 211c of sheet 210c is connected to or integrally joined to the first lower part of the first side 211a of sheet 210a, and the second lower part of the first side 211c of sheet 210c is connected to or integrally joined to the second lower part of the first side 211a of sheet 210a.

[0095] The rising sheet 230f is positioned on the Z' side relative to the engaging portion 220a and is positioned opposite the rising sheet 230a with a gap in the Y' side. The rising sheet 230f rises from the first side 211c of the sheet 210c to the engaging portion 220a in a direction including a component in the Z direction (Z direction, diagonal direction including components in the Z and Y directions, or diagonal direction including components in the Z and Y' directions), and has one or more ventilation openings.

[0096] The riser sheet 230f can have the same configuration as the riser sheet 230a. The riser sheet 230f may be composed of at least a portion of the mesh sheet 231f. The ventilation openings of the riser sheet 230f may be one or more mesh sheets 231f that cover one or more through holes in the sheet body, or they may be mesh sheets 231f that make up the entire riser sheet 230b, or if the mesh sheets 231f are omitted, they may be one or more through holes in the sheet body. It is also possible for the riser sheet 230f to have no ventilation openings.

[0097] The rising sheet 230f has an upper edge on the Z-direction side and a lower edge on the Z'-direction side. The upper edge of the rising sheet 230f may be a substantially convex, substantially V-shaped (see Figures 3A and 3B), or substantially U-shaped (not shown) curve that is convex upward along the top 110a of the support pole 100a. The upper edge of the rising sheet 230f is connected to or integrally connected to one or more sleeves 221a. The multiple sleeves 221b are arranged at intervals along the upper edge of the rising sheet 230b.

[0098] The lower edge of the rising sheet 230f is approximately convex upwards, forming a roughly circular arc, a roughly V-shape, or a roughly U-shape, following the shape of the top of the first side 211c of the sheet 210c. The lower edge of the rising sheet 230f is connected to or integrally attached to the top of the first side 211c of the sheet 210c. Note that the rising sheet 230f is optional.

[0099] Tent T2 may further include a blind 300e. The blind 300e has the same configuration as the blind 300a, is provided on the riser sheet 230f, and is configured to open and close one or more ventilation openings in the riser sheet 230f. The blind 300e is optional.

[0100] Tent T2 may also have another support section (a first support section and a second support section). This support section has a support pole 100e (a first support pole and a second support pole). The support pole 100e has the same configuration as the support pole 100b and has a top section 110e, a first lower section 120e, and a second lower section 130e. The length dimension of the support pole 100e is preferably the same as the length dimension of the support pole 100b, but it may be different.

[0101] The top portion 110e of the support pole 100e is positioned at a distance from the top portion 110a of the support pole 100a in the Y' direction and in the Z direction relative to the top of the second side 212c of the sheet 210c. The first lower portion 120e of the support pole 100e is positioned along the first lower portion of the second side 212c of the sheet 210c, and the lower end of the first lower portion 120e is inserted into and held by a retainer (not shown) such as a bottomed cylindrical cap or fixing ring provided at the third corner of the sheet 210c. The second lower portion 130e of the support pole 100e is positioned along the second lower portion of the second side 212c of the sheet 210c, and the lower end of the second lower portion 130e is inserted into and held by a retainer (not shown) such as a bottomed cylindrical cap or fixing ring provided at the fourth corner of the sheet 210c.

[0102] The tent sheet 200' may further have an engaging portion 220e (a first engaging portion and a second engaging portion). The engaging portion 220e only needs to engage with the top portion 110e of the support pole 100e. For example, the engaging portion 220e can be configured to have a sleeve 221e. The sleeve 221e may be a flexible tube made of the same material as the sheet 210c.

[0103] The sleeve 221e is shaped like a roughly convex arc upward (not shown), a roughly convex V-shape upward (see Figures 3A and 3B), a straight line extending in the X-X' direction (not shown), or a roughly convex U-shape upward (not shown), along the top 110e of the support pole 100e, and is connected to or integrally connected to the top of the second side 212c of the sheet 210c. Multiple sleeves 221e are possible. Multiple sleeves 221e are arranged at intervals along the second side 212c of the sheet 210c. The top 110e of the support pole 100e is inserted into one or more sleeves 221e. In this way, the top 110e of one or more support poles 100e supports the sleeve 221e and the sheet 210c. The engaging portion 220e is optional.

[0104] The tent sheet 200' may further include a standing sheet 230d (first standing sheet), a third extension sheet 280a, a fourth extension sheet 280b, and a rear sheet 290 (first sheet).

[0105] The rising sheet 230d is positioned on the Z' side relative to the engaging portion 220e, and the upper edge of the rising sheet 230d is configured as any of the above, except that it is convex upward along the top 110e of the support pole 100e and has a substantially arc shape (not shown), a substantially V shape (see Figures 3A and 3B), or a substantially U shape (not shown). The upper edge of the rising sheet 230d is connected to or integrally connected to one or more sleeves 221e.

[0106] The rising sheet 230d may be located on the Z' side of the rising sheet 230a, or vice versa, or the rising sheet 230d and the rising sheet 230a may be located at approximately the same height in the Z-Z' direction.

[0107] The third extension seat 280a, the fourth extension seat 280b, and the rear seat 290 are each configured as one of the above-described options.

[0108] If the support pole 100e, engaging portion 220e, seat 210c, rising seat 230f, third extension seat 280a, and fourth extension seat 280b are not provided, the upper edge of the rear seat 290 is connected to or integrally connected to the engaging portion 220a, the first side edge of the rear seat 290 is connected to or integrally connected to the first lower part of the seat 210a, and the second side edge of the rear seat 290 is connected to or integrally connected to the second lower part of the seat 210a.

[0109] If the support pole 100e, engaging portion 220e, sheet 210c, third extension sheet 280a, and fourth extension sheet 280b are not provided, the upper edge of the rear sheet 290 is connected to or integrally connected to the lower edge of the rising sheet 230f, the first side edge of the rear sheet 290 is connected to or integrally connected to the first lower part of the sheet 210a, and the second side edge of the rear sheet 290 is connected to or integrally connected to the second lower part of the sheet 210a.

[0110] Tent T2 may or may not be equipped with the aforementioned 300d blind.

[0111] The tent T2 described above has improved ventilation performance. This is because the rising sheet 230b rises in a direction that includes a component in the Z direction from the first side 211a of the door sheet 260 to the engaging portion 220a, and has one or more ventilation openings.

[0112] The ventilation performance of tent T2 is further improved when a riser sheet 230f is provided. The reasons for this are as follows: Firstly, the riser sheet 230f rises from the first side 211c of sheet 210c to the engaging portion 220a in a direction that includes a component in the Z direction, and has one or more ventilation openings. Secondly, the riser sheet 230f and the riser sheet 230b are spaced apart in the Y-Y' direction. As a result, air can easily enter tent T2 through one or more ventilation openings in the riser sheet 230b and flow out through one or more ventilation openings in the riser sheet 230f, or vice versa, making it easier for air to circulate inside tent T2 in the Y-Y' direction.

[0113] The ventilation performance of tent T2 is further improved when a riser sheet 230d is provided. The reasons for this are as follows: Firstly, the riser sheet 230d rises from the upper edge of the rear sheet 290 to the engaging portion 220d in a direction that includes a component in the Z direction, and has one or more ventilation openings. Secondly, because the riser sheet 230d is positioned at a distance from the riser sheet 230b in the Y' direction, air can easily enter tent T2 through one or more ventilation openings in the riser sheet 230b and flow out through one or more ventilation openings in the riser sheet 230d, or vice versa, thus facilitating air circulation within tent T2 in the Y-Y' direction. [Examples]

[0114] The following describes a tent T3 according to several embodiments of the present invention, including Embodiment 3 and its design modifications, with reference to Figures 4A to 4C. Figures 4A to 4C show the tent T3 of Embodiment 3. Figures 4A to 4B also show the Z-Z' direction, the Y-Y' direction (first direction), and the X-X' direction (second direction), similar to Figures 1A and 1B.

[0115] Tent T3 has two support sections (third support section and fourth support section). One of the two support sections (third support section) has a support pole 100f (third support pole), and the other support section (fourth support section) has a support pole 100g (fourth support pole).

[0116] Support poles 100f and 100g each have multiple cylindrical or rod-shaped parts. The multiple parts are arranged in the longitudinal direction of support poles 100f and 100g, and may include multiple sets of two adjacent parts, with each set of two adjacent parts connected by a joint, or the two adjacent parts in each set may be connected so as to be rotatable.

[0117] Support poles 100f and 100g are configured to extend in a straight line when not in use, but to curve upwards in a roughly convex arc, roughly V-shape, or roughly U-shape (excluding "roughly concave shape") when in use. However, they may also be configured to be curved upwards in a roughly convex arc, roughly V-shape, or roughly U-shape beforehand.

[0118] Support pole 100f has a top 110f, a first lower section 120f, and a second lower section 130f. The first lower section 120f extends diagonally from one end of the top 110f, including components in the Z', X, and Y directions (see Figures 4A and 4B), and the second lower section 130f extends diagonally from the other end of the top 110f, including components in the Z', X', and Y' directions. Support pole 100g has a top 110g, a first lower section 120g, and a second lower section 130g. The first lower section 120f extends diagonally from one end of the top 110f, including components in the Z', X', and Y directions, and the second lower section 130g extends diagonally from the other end of the top 110f, including components in the Z', X, and Y' directions.

[0119] Support poles 100f and 100g are positioned so that their tops 110f and 110g intersect. Hereafter, the intersection of support poles 100f and 100g will be referred to as the "intersection."

[0120] Tent T3 further includes a tent sheet 500. The tent sheet 500 has a sheet 510a (second sheet), an engaging portion 520a (third engaging portion), and an engaging portion 520b (fourth engaging portion).

[0121] Sheet 510a is a flexible sheet made of polyester taffeta, polyester oxford, nylon, or cotton, with four side shapes that are roughly rectangular, dome-shaped, or roughly square pyramidal, and is positioned on the Z' side relative to the intersection. Sheet 510a has a first side 511a on the Y side, a second side 512a on the Y' side, a third side 513a on the X side, a fourth side 514a on the X' side, a first corner, a second corner, a third corner, and a fourth corner. The first corner is the corner where the first side 511a and the third side 513a meet; the second corner is the corner where the first side 511a and the fourth side 514a meet; the third corner is the corner where the second side and the third side 513a meet; and the fourth corner is the corner where the second side 512a and the fourth side 514a meet.

[0122] The engaging portion 520a only needs to engage with the top portion 110f of the support pole 100f. For example, the engaging portion 520a can be configured to have a sleeve 521a. The sleeve 521a can be a flexible cylinder made of the same material as the sheet 510a. The sleeve 521a extends from the first corner to the fourth corner on the sheet 510a. There can also be multiple sleeves 521a. Multiple sleeves 521a are arranged with gaps between the first corner and the fourth corner on the sheet 510a. The top portion 110f of the support pole 100f is inserted into one or more sleeves 521a. In this way, the top portion 110f of the support pole 100f supports one or more sleeves 521a and the sheet 510a.

[0123] The engaging portion 520b only needs to engage with the top portion 110g of the support pole 100g. For example, the engaging portion 520b can be configured to have a sleeve 521b. The sleeve 521b can be a flexible cylinder made of the same material as the sheet 510a. The sleeve 521b extends from the second corner to the third corner on the sheet 510a and intersects with the other sleeve 521b. There can also be multiple sleeves 521b. Multiple sleeves 521b are arranged at intervals between the second and third corners on the sheet 510a and intersect with one or more sleeves 521a. The top portion 110g of the support pole 100g is inserted into one or more sleeves 521b. As a result, the top portion 110g of the support pole 100g supports one or more sleeves 521b and the sheet 510a.

[0124] Tent T3 may further include a support pole 100h (fifth support pole). The support pole 100h has the same configuration as the support pole 100f and extends from the third side 513a of the sheet 510a through the intersection to the fourth side 514a.

[0125] The tent sheet 500 further has an engaging portion 520c (fifth engaging portion) and an engaging portion 520d (sixth engaging portion). The engaging portion 520c is an insertion portion provided on the middle portion of the third side 513a of the sheet 510a. The engaging portion 520d is an insertion portion provided on the day portion of the fourth side 514a of the sheet 510a. One end of the support pole 100h is inserted into the engaging portion 520c, thereby maintaining the third side 513a of the sheet 510a in a roughly V-shape that is convex in the Z direction (see Figures 4A and 4C), and the other end of the support pole 100h is inserted into the engaging portion 520d, thereby maintaining the fourth side 514a of the sheet 510a in a roughly V-shape that is convex in the Z direction (see Figure 4B). Note that the support pole 100h, engaging portion 520c, and engaging portion 520d are optional.

[0126] The tent sheet 500 further includes a hanging sheet 530a on the X-direction side and a rising sheet 540a (third rising sheet) on the X-direction side.

[0127] The rising sheet 540a rises from the hanging sheet 530a to the sheet 510a in a direction that includes a component in the Z direction (Z direction, diagonal direction including components in the Z and X directions, or diagonal direction including components in the Z and X' directions), and has one or more ventilation openings.

[0128] The rising sheet 540a has an upper edge on the Z-direction side and a lower edge on the Z'-direction side (opposite the upper edge). The upper edge of the rising sheet 540a is connected to or integrally connected to sheet 510a. The rising sheet 540a is positioned to face the X-direction.

[0129] At least a portion of the riser sheet 540a may be made of mesh sheet 541a. For example, the riser sheet 540a can be configured to have a sheet body, one or more through holes, and one or more mesh sheets 541a (not shown). In this case, the sheet body is a flexible sheet made of the same material as sheet 510a, one or more through holes penetrate the sheet body, and one or more mesh sheets 541a are fixed to the sheet body so as to cover one or more through holes and form one or more ventilation openings. Alternatively, the entire riser sheet 540a may be made of mesh sheet 541a (see Figure 3A). In this case, the mesh sheet 541a forms ventilation openings.

[0130] Note that one or more mesh sheets 541a can be omitted. In this case, one or more through holes in the rising sheet 540a form one or more ventilation openings in the rising sheet 540a.

[0131] The hanging sheet 530a is positioned on the Z' side relative to the sheet 510a. The hanging sheet 530a has a sheet body 531a having an opening 531a1 and a door sheet 532a. The sheet body 531a is made of the same material as the sheet 510a and extends from the lower edge of the rising sheet 540a in a direction including the Z' direction or a diagonal component of the Z' direction and the X direction. The sheet body 531a has an upper edge on the Z side, a lower edge on the Z' side, a first edge 531a2 on the Y side, a second edge 531a3 on the Y' side, a first corner, and a second corner. The upper edge of the sheet body 531a is connected to or integrally connected to the lower edge of the rising sheet 540a. The first edge 531a2 of the sheet body 531a is a substantially arc shape that is convex in the Y direction. The second side 531a3 of the sheet body 531a is a roughly circular arc shape that is convex in the Y' direction. The first corner is the corner where the first side 531a2 and the bottom side meet, and the second corner is the corner where the second side 531a3 and the bottom side meet.

[0132] The first lower part 120f of the support pole 100f is positioned along the first side 531a2 of the sheet body 531a, and the lower end of the first lower part 120f is inserted into and held by a retaining device (not shown) such as a bottomed cylindrical cap or fixing ring provided at the first corner of the sheet body 531a. The second lower part 130g of the support pole 100g is positioned along the second side 531a3 of the sheet body 531a, and the lower end of the second lower part 130g is inserted into and held by a retaining device (not shown) such as a bottomed cylindrical cap or fixing ring provided at the second corner of the sheet body 531a.

[0133] The opening 531a1 penetrates the sheet body 531a in its thickness direction. The opening 531a1 extends from the top edge to the bottom edge of the sheet body 531a, from a portion below the top edge to the bottom edge, from the top edge to a portion above the bottom edge, or from a portion below the top edge to a portion above the bottom edge. If the opening 531a1 extends from the top edge, the door sheet 532a has its top edge connected to or integrally connected to the bottom edge of the rising sheet 540a and closes the opening 531a1 in a way that allows it to be opened and closed. If the opening 531a1 extends from a portion below the top edge, the door sheet 532a has its top edge connected to or integrally connected to the upper edge of the opening 531a1 of the sheet body 531a and closes the opening 531a1 in a way that allows it to be opened and closed.

[0134] The door sheet 532a may have a door sleeve 532a1, a door sleeve 532a2, a first upper insertion part (not shown), a second upper insertion part (not shown), a first lower insertion part (not shown), and a second lower insertion part (not shown). The door sleeves 532a1 and 532a2 are provided intersecting on the central part of the door sheet 532a. The two upper corners of the door sheet 532a are provided with a first upper insertion part and a second upper insertion part, respectively. The first upper insertion part is a bottomed cylindrical cap that opens toward the upper end of the door sleeve 532a1, and the second upper insertion part is a bottomed cylindrical cap that opens toward the upper end of the door sleeve 532a2. The lower corners of the door sheet 532a are provided with a first lower insertion part and a second lower insertion part, respectively. The first lower insertion part is a bottomed cylindrical cap that opens toward the lower end of the door sleeve 532a2, and the second lower insertion part is a bottomed cylindrical cap that opens toward the lower end of the door sleeve 532a1.

[0135] The tent T3 may further include an extension section 400a. The extension section 400a has an extension pole 410a and an extension pole 420a. The extension poles 410a and 420a have the same configuration as the extension poles 410a and 420a, except as follows: The extension pole 410a is inserted through the door sleeve 532a1, with the upper end of the extension pole 410a inserted into the first upper insertion part and the lower end of the extension pole 410a inserted into the second lower insertion part. The extension pole 420a is inserted through the door sleeve 532a2, with the upper end of the extension pole 420a inserted into the second upper insertion part and the lower end of the extension pole 420a inserted into the first lower insertion part. This maintains the door sheet 532a in an extended state by the extension poles 410a and 420a.

[0136] The extension portion 400a can be omitted. In this case, the door sleeve 532a1, door sleeve 532a2, first upper insertion portion, second upper insertion portion, first lower insertion portion, and second lower insertion portion of the door sheet 532a are also omitted. Furthermore, the hanging sheet 530a can be configured without the sheet body 531a and the door sheet 532a. In this case, the hanging sheet 530a may be made of the same material as sheet 510a. In this case as well, the extension portion 400a is omitted.

[0137] Tent T3 may further include a blind 600a. The blind 600a has the same configuration as the blind 300a, is provided on the riser sheet 540a, and is configured to open and close one or more ventilation openings in the riser sheet 540a. The blind 600a is optional.

[0138] The tent sheet 500 further includes a hanging sheet 530b on the X' direction side and a rising sheet 540b (third rising sheet) on the X' direction side.

[0139] The rising sheet 540b rises from the hanging sheet 530b to the sheet 510a in a direction that includes a component in the Z direction (Z direction, diagonal direction including components in the Z and X directions, or diagonal direction including components in the Z and X' directions), and has one or more ventilation openings.

[0140] The rising sheet 540b has an upper edge on the Z-direction side and a lower edge on the Z'-direction side (opposite the upper edge). The upper edge of the rising sheet 540b is connected to or integrally connected to sheet 510a. The rising sheet 540b is positioned to face the X' direction.

[0141] The riser sheet 540b can have the same configuration as the riser sheet 540a. The riser sheet 540b may be composed of at least a portion of the mesh sheet 541b. The ventilation openings of the riser sheet 540b may be one or more mesh sheets 541b that cover one or more through holes in the sheet body, or they may be mesh sheets 541b that make up the entire riser sheet 540b, or if the mesh sheets 541b are omitted, they may be one or more through holes in the sheet body.

[0142] The hanging sheet 530b is positioned on the Z' side relative to the sheet 510a. The hanging sheet 530b and the hanging sheet 530a face each other in the X-X' direction. The hanging sheet 530b has a sheet body 531b with an opening 531b1 and a door sheet 532b. The sheet body 531b is made of the same material as the sheet 510a and extends from the lower edge of the rising sheet 540b in a direction that includes components in the Z' direction or diagonal directions of the Z' and X' directions. The sheet body 531b has an upper edge on the Z side, a lower edge on the Z' side, a first edge 531b2 on the Y side, a second edge 531b3 on the Y' side, a first corner, and a second corner. The first edge 531b2 of the sheet body 531b is a roughly convex arc in the Y direction. The second side 531b3 of the sheet body 531b is a roughly circular arc shape that is convex in the Y' direction. The first corner is the corner where the first side 531b2 and the bottom side meet, and the second corner is the corner where the second side 531b3 and the bottom side meet. The top side of the sheet body 531b is connected to or integrally connected to the bottom side of the rising sheet 540b.

[0143] The first lower part 120f of the support pole 100f is positioned along the first side 531b2 of the sheet body 531b, and the lower end of the first lower part 120f is inserted into and held by a retaining device (not shown) such as a bottomed cylindrical cap or fixing ring provided at the first corner of the sheet body 531b. The second lower part 130g of the support pole 100g is positioned along the second side 531b3 of the sheet body 531b, and the lower end of the second lower part 130g is inserted into and held by a retaining device (not shown) such as a bottomed cylindrical cap or fixing ring provided at the second corner of the sheet body 531b.

[0144] The opening 531b1 penetrates the sheet body 531b in its thickness direction. The opening 531b1 extends from the top edge to the bottom edge of the sheet body 531b, from a portion below the top edge to the bottom edge, from the top edge to a portion above the bottom edge, or from a portion below the top edge to a portion above the bottom edge. If the opening 531b1 extends from the top edge, the door sheet 532b has its top edge connected to or integrally connected to the bottom edge of the rising sheet 540b and closes the opening 531b1 in a manner that allows it to be opened and closed. If the opening 531b1 extends from a portion below the top edge, the door sheet 532b has its top edge connected to or integrally connected to the upper edge of the opening 531b1 of the sheet body 531b and closes the opening 531b1 in a manner that allows it to be opened and closed.

[0145] The door sheet 532b may have a door sleeve 532b1, a door sleeve 532b2, a first upper insertion part (not shown), a second upper insertion part (not shown), a first lower insertion part (not shown), and a second lower insertion part (not shown). The door sleeves 532b1 and 532b2 are provided intersecting on the central part of the door sheet 532b. The two upper corners of the door sheet 532b are provided with a first upper insertion part and a second upper insertion part, respectively. The first upper insertion part is a bottomed cylindrical cap that opens toward the upper end of the door sleeve 532b1, and the second upper insertion part is a bottomed cylindrical cap that opens toward the upper end of the door sleeve 532b2. The lower corners of the door sheet 532b are provided with a first lower insertion part and a second lower insertion part, respectively. The first lower insertion part is a bottomed cylindrical cap that opens toward the lower end of the door sleeve 532b2, and the second lower insertion part is a bottomed cylindrical cap that opens toward the lower end of the door sleeve 532b1.

[0146] The tent T3 may further include an extension section 400b. The extension section 400b has an extension pole 410b and an extension pole 420b. The extension poles 410b and 420b have any of the above configurations, except as follows: The extension pole 410b is inserted through the door sleeve 532b1, with the upper end of the extension pole 410b inserted into the first upper insertion part and the lower end of the extension pole 410b inserted into the second lower insertion part. The extension pole 420b is inserted through the door sleeve 532b2, with the upper end of the extension pole 420b inserted into the second upper insertion part and the lower end of the extension pole 420b inserted into the first lower insertion part. This maintains the door sheet 532b in an extended state by the extension poles 410b and 420b.

[0147] The extension portion 400b is optional. In this case, the door sleeve 532b1, door sleeve 532b2, first upper insertion portion, second upper insertion portion, first lower insertion portion, and second lower insertion portion of the door sheet 532b are also omitted. Furthermore, the hanging sheet 530b can be configured without the sheet body 531b and the door sheet 532b. In this case, the hanging sheet 530b may be made of the same material as sheet 510a. In this case as well, the extension portion 400b is omitted.

[0148] It is possible to omit either the combination of the hanging sheet 530a and the rising sheet 540a, or the combination of the hanging sheet 530b and the rising sheet 540b. In place of the omitted combination, it is sufficient to provide a sheet hanging down from sheet 510a.

[0149] Tent T3 may further include a blind 600b. The blind 600b has the same configuration as the blind 300a, is provided on the riser sheet 540b, and is configured to open and close one or more ventilation openings in the riser sheet 540b. The blind 600b is optional.

[0150] The tent T3 may further include another support section (seventh support section). This support section has a support pole 100i (seventh support pole).

[0151] Support pole 100i has the same configuration as support pole 100a, and also has a top portion 110i, a first lower portion 120i, and a second lower portion 130i. The top portion 110i of support pole 100i is positioned on the Y-direction side relative to sheet 510a. The first lower portion 120i extends in a first diagonal direction from one end of the top portion 110i, and the second lower portion 130i extends in a second diagonal direction from the other end of the top portion 110i. The upper portion of the first lower portion 120i of support pole 100i intersects with the upper portion of the first lower portion 120f of support pole 100f. The lower end of the first lower portion 120i is inserted into and held by a retainer (not shown) such as a bottomed cylindrical cap or fixing ring provided at the lower part of the Y-direction side edge of the opening 531a1 of the hanging sheet 530a. The upper portion of the second lower part 130i of the support pole 100i intersects with the upper portion of the first lower part 120g of the support pole 100g. The lower end of the second lower part 130i is inserted into and held by a retaining device (not shown) such as a bottomed cylindrical cap or fixing ring provided at the lower part of the Y-direction edge of the opening 531b1 of the hanging sheet 530b. The support pole 100i is optional.

[0152] The tent sheet 500 may further include a rising sheet 540c and an engaging portion 520e.

[0153] The rising sheet 540c is positioned on the Z' side relative to the engaging portion 520e. The rising sheet 540c rises from the first side 511a of the sheet 510a to the engaging portion 520e in a direction including a Z component (Z direction, diagonal direction including Z and Y components, or diagonal direction including Z and Y' components), and has one or more ventilation openings.

[0154] The riser sheet 540c can have the same configuration as the riser sheet 540a. The riser sheet 540c may be composed of at least a portion of a mesh sheet 541c. The ventilation openings of the riser sheet 540c may be one or more mesh sheets 541c that cover one or more through holes in the sheet body, or they may be mesh sheets 541c that make up the entire riser sheet 540c, or if the mesh sheets 541c are omitted, they may be one or more through holes in the sheet body.

[0155] The rising sheet 540c has an upper edge on the Z-direction side and a lower edge on the Z'-direction side (opposite the upper edge). The lower edge of the rising sheet 540c is connected to or integrally connected to the first edge 511a of the sheet 510a. Note that the rising sheet 540c is optional. In this case, the first edge 511a of the sheet 510a is connected to or integrally connected to the engaging portion 520e.

[0156] The engaging portion 520e only needs to engage with the top portion 110i of the support pole 100i. For example, the engaging portion 520e can be configured to have a sleeve 521e. The sleeve 521e can be a flexible tube made of the same material as the sheet 510a.

[0157] The sleeve 521e is located along the top 110i of the support pole 100i and is shaped like an upwardly convex, approximately an upwardly convex, approximately a V-shape (see Figures 4A and 4B), a straight line extending in the X-X' direction (not shown), or approximately an upwardly convex, approximately a U-shape (not shown), and is connected to or integrally connected to the upper edge of the rising sheet 540c. Multiple sleeves 521e are possible. Multiple sleeves 521e are arranged at intervals along the upper edge of the rising sheet 540c. The top 110i of the support pole 100i is inserted into one or more sleeves 521e. In this way, the top 110i of the support pole 100i supports one or more sleeves 521e and the rising sheet 540c. The engaging portion 520e can be omitted along with the support pole 100i.

[0158] Tent T3 may further include another support section (eighth support section). This support section has a support pole 100j (eighth support pole).

[0159] Support pole 100j has the same configuration as support pole 100a and includes a top portion 110j, a first lower portion 120j, and a second lower portion 130j. The top portion 110j of support pole 100j is positioned on the Y' direction side with respect to sheet 510a. The first lower portion 120j extends in a first diagonal direction from one end of the top portion 110j, and the second lower portion 130j extends in a second diagonal direction from the other end of the top portion 110j. The upper portion of the first lower portion 120j of support pole 100j intersects with the upper portion of the second lower portion 130g of support pole 100g. The lower end of the first lower portion 120j is inserted into and held by a retainer (not shown) such as a bottomed cylindrical cap or fixing ring provided at the lower part of the Y' direction edge of the opening 531a1 of the hanging sheet 530a. The upper portion of the second lower part 130j of the support pole 100j intersects with the upper portion of the second lower part 130f of the support pole 100f. The lower end of the second lower part 130j is inserted into and held by a retaining device (not shown) such as a bottomed cylindrical cap or fixing ring provided at the lower part of the edge on the Y' direction side of the opening 531b1 of the hanging sheet 530b. Note that the support pole 100j is optional.

[0160] The tent sheet 500 may further include a rising sheet 540d and an engaging portion 520f.

[0161] The rising sheet 540d is positioned on the Z' side relative to the engaging portion 520f. The rising sheet 540d rises from the second side 512a of the sheet 510a to the engaging portion 520f in a direction that includes a component in the Z direction (Z direction, diagonal direction including components in the Z and Y directions, or diagonal direction including components in the Z and Y' directions), and has one or more ventilation openings.

[0162] The riser sheet 540d can have the same configuration as the riser sheet 540a. The riser sheet 540d may be composed of at least a portion of a mesh sheet 541d. The ventilation openings of the riser sheet 540d may be one or more mesh sheets 541d that cover one or more through holes in the sheet body, or they may be mesh sheets 541d that make up the entire riser sheet 540d, or if the mesh sheets 541d are omitted, they may be one or more through holes in the sheet body.

[0163] The rising sheet 540d has an upper edge on the Z-direction side and a lower edge on the Z'-direction side (opposite the upper edge). The lower edge of the rising sheet 540d is connected to or integrally joined to the second edge 512a of the sheet 510a. Note that the rising sheet 540d is optional. In this case, the second edge 512a of the sheet 510a is connected to or integrally joined to the engaging portion 520f.

[0164] The engaging portion 520f only needs to engage with the top portion 110j of the support pole 100j. For example, the engaging portion 520f can be configured to have a sleeve 521f. The sleeve 521f can be a flexible tube made of the same material as the sheet 510a.

[0165] The sleeve 521f is located along the top 110j of the support pole 100j and is shaped like a roughly convex arc upward (not shown), a roughly convex V-shape upward (see Figures 4A and 4B), a straight line extending in the X-X' direction (not shown), or a roughly convex U-shape upward (not shown), and is connected to or integrally connected to the upper edge of the rising sheet 540d. Multiple sleeves 521f are possible. Multiple sleeves 521f are arranged at intervals along the upper edge of the rising sheet 540d. The top 110j of the support pole 100j is inserted into one or more sleeves 521f. In this way, the top 110j of the support pole 100j supports one or more sleeves 521f and the rising sheet 540d. The engaging portion 520f can be omitted along with the support pole 100j.

[0166] Tent T3 may further include another support section (the ninth support section). This support section has a support pole 100k (the ninth support pole).

[0167] Support pole 100k has the same configuration as support pole 100a and includes a top portion 110k, a first lower portion 120k, and a second lower portion 130k. The top portion 110l of support pole 100k is positioned on the Y-direction side relative to the top portion 110i of support pole 100i. The first lower portion 120k extends in a first oblique direction from one end of the top portion 110k, and the second lower portion 130k extends in a second oblique direction from the other end of the top portion 110k.

[0168] The tent sheet 500 may further include a sheet 510b. Sheet 510b is a flexible sheet made of the same material as sheet 510a. Sheet 510b has a first side 511b on the Y' direction side, a second side 512b on the Y direction side, a third side 513b on the X direction side, a fourth side 514b on the X' direction side, a first corner, and a second corner.

[0169] The first side 511b is shorter than the second side 512b and, along the engaging portion 520e, is a substantially convex upward arc (not shown), a substantially convex upward V-shape (see Figure 4A), a straight line extending in the X-X' direction (not shown), or a substantially convex upward U-shape (not shown). The first side 511b is connected to or integrally connected to one or more sleeves 521e of the engaging portion 520e.

[0170] The second side 512b is approximately an upwardly convex arc (see Figure 4A), approximately an upwardly convex V-shape (not shown), a straight line extending in the X-X' direction (not shown), or approximately an upwardly convex U-shape (not shown) along the top 110k of the support pole 100k. The second side 512b is positioned at a distance from the top 110k of the support pole 100k on the Z' side. The second side 512b may be positioned on the Z' side (downward) relative to the top 110k of the support pole 100k, but it may also be positioned at a distance from the top 110k of the support pole 100k on the diagonal side (downward) including components in the Z' and Y directions, or it may also be positioned at a distance from the top 110k of the support pole 100k on the diagonal side (downward) including components in the Z' and Y directions.

[0171] The third side 513b slopes downward in the Y direction from the X-side end of the first side 511b to the X-side end of the second side 512b and is integrally connected to the first side 531a2 of the sheet body 531a of the hanging sheet 530a. The fourth side 514b slopes downward in the Y direction from the X'-side end of the first side 511b to the X'-side end of the second side 512b and is integrally connected to the first side 531b2 of the sheet body 531b of the hanging sheet 530b. The first corner is the corner where the second side 512b and the third side 513b meet, and the second corner is the corner where the second side 512b and the fourth side 514b meet.

[0172] The lower end of the first lower section 120k of the support pole 100k is inserted into and held by a bottomed cylindrical cap or fixing ring or other retaining device (not shown) provided at the first corner of the sheet 510b. The lower end of the second lower section 130k of the support pole 100k is inserted into and held by a bottomed cylindrical cap or fixing ring or other retaining device (not shown) provided at the second corner of the sheet 510b.

[0173] The tent sheet 500 may further include a rising sheet 540e and an engaging portion 520g.

[0174] The rising sheet 540e is positioned on the Z' side relative to the engaging portion 520g. The rising sheet 540e rises from the second side 512b of the sheet 510b to the engaging portion 520g in a direction including a Z component (Z direction, diagonal direction including Z and Y components, or diagonal direction including Z and Y' components), and has one or more ventilation openings. The rising sheet 540e may be located at approximately the same height as the rising sheet 540c in the Z-Z' direction, but may also be located at a different height.

[0175] The riser sheet 540e can have the same configuration as the riser sheet 540a. The riser sheet 540e may have no ventilation openings (see Figures 4B and 4C), but it may also have one or more ventilation openings, similar to the riser sheet 540c.

[0176] The rising sheet 540e has an upper edge on the Z-direction side and a lower edge on the Z'-direction side (opposite the upper edge). The lower edge of the rising sheet 540e is connected to or integrally connected to the second edge 512b of sheet 510b.

[0177] The engaging portion 520g only needs to engage with the top portion 110k of the support pole 100k. For example, the engaging portion 520g can be configured to have a sleeve 521g. The sleeve 521g can be a flexible tube made of the same material as the sheet 510a.

[0178] The sleeve 521g is located along the top 110k of the support pole 100k and is shaped like an upwardly convex, roughly an upwardly convex, roughly a V-shape (see Figures 4A and 4B), a straight line extending in the X-X' direction (not shown), or roughly a upwardly convex, roughly a U-shape (not shown), and is connected to or integrally connected to the upper edge of the rising sheet 540e. Multiple sleeves 521g are possible. Multiple sleeves 521g are arranged at intervals along the upper edge of the rising sheet 540e. The top 110k of the support pole 100k is inserted into one or more sleeves 521g. In this way, the top 110k of the support pole 100k supports one or more sleeves 521g and the rising sheet 540e.

[0179] Note that the support pole 100k, sheet 510b, rising sheet 540e, and engaging part 520g can be omitted.

[0180] Tent T3 may further include another support section (10th support section). This support section has a support pole 100l (10th support pole).

[0181] Support pole 100l has the same configuration as support pole 100a and has a top portion 110l, a first lower portion 120l, and a second lower portion 130l. The top portion 110l of support pole 100l is positioned on the Y' direction side relative to the top portion 110j of support pole 100j. The first lower portion 120l extends in a first oblique direction from one end of the top portion 110l, and the second lower portion 130l extends in a second oblique direction from the other end of the top portion 110l.

[0182] The tent sheet 500 may further have a sheet 510c. Sheet 510c is a flexible sheet made of the same material as sheet 510a. Sheet 510c has a first side 511c on the Y direction side, a second side 512c on the Y' direction side, a third side 513c on the X direction side, a fourth side 514c on the X' direction side, a first corner, and a second corner.

[0183] The first side 511c is shorter than the second side 512c and, along the engaging portion 520f, is a substantially convex upward arc (not shown), a substantially convex upward V-shape (see Figure 4A), a straight line extending in the X-X' direction (not shown), or a substantially convex upward U-shape (not shown). The first side 511c is connected to or integrally connected to one or more sleeves 521f of the engaging portion 520f.

[0184] The second side 512c is approximately an upwardly convex arc (see Figure 4A), approximately an upwardly convex V-shape (not shown), a straight line extending in the X-X' direction (not shown), or approximately an upwardly convex U-shape (not shown) along the top 110l of the support pole 100l. The second side 512c is positioned at a distance from the top 110l of the support pole 100l on the Z' side. The second side 512c may be positioned on the Z' side (below) of the top 110l of the support pole 100l, or it may be positioned at a distance from the top 110l of the support pole 100l on the diagonal side (below) including components in the Z' and Y directions, or it may be positioned at a distance from the top 110l of the support pole 100l on the diagonal side (below) including components in the Z' and Y directions.

[0185] The third side 513c slopes downward in the Y' direction from the X-side end of the first side 511c to the X-side end of the second side 512c and is integrally connected to the second side 531a3 of the sheet body 531a of the hanging sheet 530a. The fourth side 514c slopes downward in the Y' direction from the X'-side end of the first side 511c to the X'-side end of the second side 512c and is integrally connected to the second side 531b3 of the sheet body 531b of the hanging sheet 530b. The first corner is the corner where the second side 512c and the third side 513c meet, and the second corner is the corner where the second side 512c and the fourth side 514c meet.

[0186] The lower end of the first lower section 120l of the support pole 100l is inserted into and held by a retaining device (not shown) such as a bottomed cylindrical cap or fixing ring provided at the first corner of the sheet 510c. The lower end of the second lower section 130l of the support pole 100l is inserted into and held by a retaining device (not shown) such as a bottomed cylindrical cap or fixing ring provided at the second corner of the sheet 510c.

[0187] The tent sheet 500 may further include a rising sheet 540f and an engaging portion 520h.

[0188] The rising sheet 540f is positioned on the Z' side relative to the engaging portion 520h. The rising sheet 540f rises from the second side 512c of the sheet 510c to the engaging portion 520h in a direction that includes a component in the Z direction (Z direction, diagonal direction including components in the Z and Y directions, or diagonal direction including components in the Z and Y' directions), and has one or more ventilation openings. The rising sheet 540f may be located at approximately the same height as the rising sheet 540d in the Z-Z' direction, or at a different height.

[0189] The riser sheet 540f can have the same configuration as the riser sheet 540e. The riser sheet 540f may have no ventilation openings (see Figures 4A and 4C), but it may also have one or more ventilation openings, similar to the riser sheet 540d.

[0190] The rising sheet 540f has an upper edge on the Z-direction side and a lower edge on the Z'-direction side (opposite the upper edge). The lower edge of the rising sheet 540f is connected to or integrally connected to the second edge 512c of sheet 510c.

[0191] The engaging portion 520h only needs to engage with the top portion 110l of the support pole 100l. For example, the engaging portion 520h can be configured to have a sleeve 521g. The sleeve 521g can be a flexible tube made of the same material as the sheet 510a.

[0192] The sleeve 521g is located along the top 110l of the support pole 100l and is shaped like an upwardly convex, roughly an upwardly convex, roughly a V-shape (see Figures 4A and 4B), a straight line extending in the X-X' direction (not shown), or a upwardly convex, roughly a U-shape (not shown), and is connected to or integrally connected to the upper edge of the riser sheet 540f. Multiple sleeves 521g are possible. Multiple sleeves 521g are arranged at intervals along the upper edge of the riser sheet 540f. The top 110l of the support pole 100l is inserted into one or more sleeves 521g. In this way, the top 110l of the support pole 100l supports one or more sleeves 521g and the riser sheet 540f.

[0193] Note that the support pole 100l, sheet 510c, rising sheet 540e, and engaging part 520g can be omitted.

[0194] Tent T3 may further include several additional blinds. These blinds have a similar configuration to blind 300a and are provided on the riser sheets 540c and 540d, and are configured to open and close one or more ventilation openings in the riser sheets 540c and 540d. These blinds are optional.

[0195] The first extension sheet 550a is a flexible, roughly triangular sheet made of the same material as sheet 510a, and has a first hypotenuse on the Y' direction side and a second hypotenuse on the Y direction side. The first hypotenuse of the first extension sheet 550a is connected to or integrally connected to the portion of sleeve 512g on the X direction side and the first lower part of the second side 512b of sheet 510b. The first extension sheet 550a may extend in the Y direction from the second side 512b of sheet 510b, or it may extend in an oblique direction including components in the Y and X' directions, or it may extend only in the X' direction. The second extension sheet 550b is a flexible, roughly triangular sheet made of the same material as the first extension sheet 550a, and has a first hypotenuse on the Y' direction side and a second hypotenuse on the Y direction side. The first hypotenuse of the second extension sheet 550b is connected to or integrally connected to the portion of the sleeve 512g on the X' direction and to the second lower part of the second side 512b of the sheet 510b. The second extension sheet 550b may extend in the Y direction from the second side 512b of the sheet 510b, or it may extend in an oblique direction including components in the Y and X directions, or it may extend in the X direction.

[0196] The first front sheet 560a is a flexible, roughly triangular sheet made of the same material as the first extension sheet 550a, and has a first hypotenuse on the X-direction side and a second hypotenuse on the X'-direction side. The second extension sheet 550b is a flexible, roughly triangular sheet made of the same material as the first extension sheet 550a, and has a first hypotenuse on the X'-direction side and a second hypotenuse on the X-direction side. The first hypotenuse of the first front sheet 560a is connected to or integrally joined to the second hypotenuse of the first extension sheet 550a. The first hypotenuse of the second front sheet 560b is connected to or integrally joined to the second hypotenuse of the second extension sheet 550b. The second hypotenuse of the first front sheet 560a and the second hypotenuse of the second front sheet 560b are connected to or integrally joined to each other.

[0197] Note that the first extension sheet 550a, the second extension sheet 550b, the first front sheet 560a, and the second front sheet 560b are optional.

[0198] The third extension sheet 570a is a flexible, roughly triangular sheet made of polyester taffeta, polyester oxford, nylon, or cotton, and has a first hypotenuse on the Y-direction side and a second hypotenuse on the Y'-direction side. The first hypotenuse of the third extension sheet 570a is connected to or integrally joined with the X-direction side portion of the sleeve 512h and the first lower part of the second side 512c of the sheet 510c. The third extension sheet 570a may extend from the second side 512c of the sheet 510c in the Y' direction, or it may extend in an oblique direction including components in the Y' and X' directions, or it may extend only in the X' direction. The fourth extension sheet 570b is a flexible, roughly triangular sheet made of the same material as the third extension sheet 570a, and has a first hypotenuse on the Y-direction side and a second hypotenuse on the Y'-direction side. The first hypotenuse of the fourth extension sheet 570b is connected to or integrally connected to the portion of the sleeve 512h on the X' side and the second lower part of the sheet 510c. The fourth extension sheet 570b may extend in the Y' direction from the second side 512c of the sheet 510c, or it may extend in an oblique direction including components in the Y' and X directions, or it may extend in the X direction.

[0199] The first rear sheet 580a is a flexible, roughly triangular sheet made of the same material as the third extension sheet 570a, and has a first hypotenuse on the X-direction side and a second hypotenuse on the X'-direction side. The fourth extension sheet 570b is a flexible, roughly triangular sheet made of the same material as the third extension sheet 570a, and has a first hypotenuse on the X'-direction side and a second hypotenuse on the X-direction side. The first hypotenuse of the first rear sheet 580a is connected to or integrally connected to the second hypotenuse of the third extension sheet 570a. The first hypotenuse of the second front sheet 560b is connected to or integrally connected to the second hypotenuse of the fourth extension sheet 570b. The second hypotenuse of the first rear sheet 580a and the second hypotenuse of the second front sheet 560b are connected to or integrally connected to each other.

[0200] The third extension seat 570a, the fourth extension seat 570b, the first rear seat 580a, and the second rear seat 580b are optional.

[0201] The T3 tent as described above has improved ventilation performance. This is because the rising sheet 540a rises in a direction that includes a Z-direction component from the hanging sheet 530a to the sheet 510a and has one or more ventilation openings, and / or the rising sheet 540b rises in a direction that includes a Z-direction component from the hanging sheet 530b to the sheet 510a and has one or more ventilation openings.

[0202] When both the riser sheet 540a and the riser sheet 540b are provided, the ventilation performance of tent T3 is further improved. The reason is as follows: Since the riser sheet 540a and the riser sheet 540b are opposite each other in the X-X' direction, air can easily enter tent T3 through one or more ventilation openings in the riser sheet 540a and exit through one or more ventilation openings in the riser sheet 540b, or vice versa, thus facilitating air circulation within tent T3 in the X-X' direction.

[0203] If a rise sheet 540c or rise sheet 540d is provided, the ventilation performance of tent T3 is further improved. The reason is as follows: The rise sheet 540c rises from the first side 511a on the Y-direction side of sheet 510a to the engaging portion 520e in a direction that includes a component in the Z-direction, and has one or more ventilation openings, so that air from the Y-direction side can flow into tent T3 through one or more ventilation openings of the rise sheet 540c. The rise sheet 540d rises from the second side 512a on the Y'-direction side of sheet 510a to the engaging portion 520f in a direction that includes a component in the Z-direction, and has one or more ventilation openings, so that air from the Y'-direction side can flow into tent T3 through one or more ventilation openings of the rise sheet 540d.

[0204] When both the riser sheet 540c and the riser sheet 540d are installed, the ventilation performance of tent T3 is further improved. The reason is as follows: Air can easily enter tent T3 through one or more ventilation openings in riser sheet 540c and exit through one or more ventilation openings in riser sheet 540d, or vice versa, so that air can easily circulate inside tent T3 in the Y-Y' direction.

[0205] Furthermore, the tent described above is not limited to the above-described embodiment, and its design can be arbitrarily modified within the scope of the claims. Details are provided below.

[0206] The engagement portion described above can be configured to have one or more hooks (not shown) instead of one or more sleeves. One or more hooks are provided on the upper edge of the corresponding riser sheet or on the first or second edge of the corresponding first sheet and are hooked onto the top of the corresponding support pole.

[0207] Alternatively, the engagement portion described above may be configured to include one or more flexible belts (not shown) and one or more hooks (not shown) instead of one or more sleeves. One or more belts extend in the Z direction from the upper edge of the corresponding riser sheet or the first or second edge of the corresponding first sheet. One or more hooks are provided at the upper end of one or more belts and are hooked onto the top of the corresponding support pole. [Explanation of Symbols]

[0208] T1, T2, T3: Tent 100a~100l: Support pole 110a~110g, 110i~110l: Top 120a~120g, 120i~120l: First lower part 130a~130g, 130i~130l: Second lower part 200, 200': Tent sheet 210a~210c: Sheet 211a~211c: First side 212a~212c: Second side 213a~213c: Third side 214a~214c: Fourth side 220a~220e: Engaging part 221a~221e: Sleeve 230a~230f: Standing sheet 231a~231d, 231f: Mesh sheet 240a, 240b: First and second extension sheets 250:Aperture 260: Door Sheet 270: Center seat 280a, 280b: Third and fourth extension sheets 290: Rear Seat 300a~300e: Blinds 400: Expansion section 500: Tent sheet 510a~510c: Sheet 511a~511c: First side 512a~512c: Second side 513a~513c 514a~514c: Fourth side 520a~520h: Engaging part 521a, 521b, 521e~521g: Sleeve 530a, 530b: Hanging sheets 540a~540f: Standing sheet 541a~541f: Mesh sheet 550a, 550b: First and second extension sheets 560a, 560b: 1st and 2nd front seats 570a, 570b: Third and fourth extension sheets 580a, 580b: 1st and 2nd rear seats 600a, 600b: Blinds

Claims

1. A first support portion having a first apex, It comes equipped with a tent sheet. The tent sheet comprises a first sheet having a first side located below the first apex of the first support portion, A first engaging portion engaged with the first top of the first support portion, It has a first rising sheet that rises from the first edge of the first sheet to the first engagement portion, A tent in which the first standing sheet has a ventilation opening.

2. In the tent according to claim 1, The first support section has a first support pole, The first support pole has a first apex that is convex upward and is roughly arc-shaped, roughly V-shaped, or roughly U-shaped.

3. In the tent according to claim 2, It is further equipped with a second support section, The second support section has a second support pole, The second support pole has a second apex that is convex upward and is substantially arc-shaped, substantially V-shaped, or substantially U-shaped, and the second apex of the second support pole and the first apex of the first support pole are spaced apart in the first direction. The first sheet further has a second side opposite to the first side, The tent further comprises a second engaging portion provided on the second side of the first sheet and engaged with the second apex of the second support pole.

4. In the tent according to claim 2, It is further equipped with a second support section, The second support section has a second support pole, The second support pole has a second apex that is convex upward and is substantially arc-shaped, substantially V-shaped, or substantially U-shaped, and the second apex of the second support pole and the first apex of the first support pole are spaced apart in the first direction. The first sheet further has a second side opposite to the first side which is located below the second apex of the second support pole, The tent sheet has a second engaging portion that engages with the second top of the second support pole, A tent further comprising a second rising sheet that rises from the second side of the first sheet to the second engaging portion.

5. In the tent according to claim 4, The second standing sheet is a tent having a ventilation opening.

6. In the tent according to claim 1, At least a portion of the first rising sheet is made of a mesh sheet, A tent in which the aforementioned mesh sheet forms the ventilation opening.

7. In the tent according to claim 2, The first rising sheet has an upper side that is convex upward along the first top of the first support pole and is roughly arc-shaped, roughly V-shaped, or roughly U-shaped, and a lower side. The first engaging portion has one or more sleeves, the one or more sleeves are provided on the upper edge of the first rising sheet and the first top of the first support pole is inserted into them. The first edge of the first sheet is connected to the lower edge of the first rising sheet, forming a tent.

8. In the tent according to claim 2, The first rising sheet has an upper edge located on the first top side of the first support pole and a lower edge. The first engaging portion is provided on the upper edge of the first rising sheet, and the first engaging portion has one or more hooks that are hooked onto the first top of the first support pole. The first edge of the first sheet is connected to the lower edge of the first rising sheet, forming a tent.

9. In the tent according to claim 2, The first support portion has multiple first support poles, and includes one first support pole and the other first support pole. The first apex of one of the first support poles and the first apex of the other first support pole are spaced apart in the first direction. The first sheet of the tent sheet is a plurality of sheets, and has one first sheet and the other first sheet. The tent sheet has multiple first engaging portions, each having one first engaging portion and the other first engaging portion, where one first engaging portion engages with the first top of the one first support pole, and the other first engaging portion engages with the first top of the other first support pole. The tent sheet has multiple first upright sheets, and each has one first upright sheet and the other upright sheet. The first rising sheet rises from the first side of the first sheet to the first engaging portion. A tent in which the other first rising sheet rises from the first side of the other first sheet to the other first engaging portion and is opposite to the first first rising sheet in the first direction.

10. It is equipped with a third support section, a fourth support section, and a tent sheet. The third support portion has a third support pole that is convex upward and has a roughly arc-shaped, roughly V-shaped, or roughly U-shaped form. The fourth support portion has a fourth support pole that is convex upward and has a roughly arc-shaped, roughly V-shaped, or roughly U-shaped form. The third support pole and the fourth support pole intersect, The tent sheet comprises a second sheet positioned below the intersection of the third support pole and the fourth support pole, A third engaging portion provided on the second sheet and engaged with the third support pole, A fourth engaging portion provided on the second sheet and engaged with the fourth support pole, A hanging sheet positioned below the second sheet, A tent having a third rising sheet that rises from the hanging sheet to the second sheet, the third rising sheet having a ventilation opening.

11. In the tent according to claim 10, The second sheet has a first side on one side in the first direction, a second side on the other side in the first direction, a third side on one side in the second direction which is substantially perpendicular to the first direction, and a fourth side on the other side in the second direction. The tent further comprises a fifth support pole extending from the third side of the second sheet through the intersection to the fourth side, The tent sheet is provided on the second sheet and further has a fifth engaging portion that engages with the fifth support pole.

12. In the tent according to claim 11, The tent sheet further has a sixth engaging portion, The fifth engaging portion is provided on the third side of the second sheet and engages with one end of the fifth support pole, thereby maintaining the third side of the second sheet in an upwardly convex, substantially V-shape. The sixth engaging portion is provided on the fourth side of the second sheet and engages with the other end of the fifth support pole, thereby maintaining the fourth side of the second sheet in an upwardly convex, substantially V-shape. A tent in which the third standing sheet is positioned to face one or the other of the second directions.

13. In the tent according to claim 10, The aforementioned hanging sheet has a main body with an opening and a door sheet. The main body hangs down from the third rising sheet, The door sheet is connected to the main body or the third rising sheet and closes the opening of the main body in a manner that allows it to be opened and closed.

14. In the tent according to claim 1 or 10, A tent further equipped with a blind that can be opened and closed to block the aforementioned ventilation opening.

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