1. A folding ball trolley comprising:
a frame having
two main rod assemblies arranged apart from each other; each main rod assembly having
two main rods pivotally connected to each other;
four top seats respectively and pivotally mounted on the four main rods of the main rod assemblies;
four bottom seats respectively and pivotally mounted on the four main rods of the main rod assemblies, and disposed below the top seats;
two connecting rod assemblies mounted between the main rod assemblies, and arranged apart from each other; the main rod assemblies and the connecting rod assemblies connected into a rectangle; each connecting rod assembly having
two connecting rods pivotally connected to each other; each connecting rod having
a top end pivotally connected to one of the top seats on one of the main rod assemblies; and
a bottom end pivotally connected to one of the bottom seats on the other main rod assembly; and
four wheels respectively mounted on bottom ends of the four main rods of the main rod assemblies; and
a bag mounted on the frame, connected to the main rods of the main rod assemblies, and having an inner space and an opening;
wherein
each top seat has
a top abutting surface inclined downward, and selectively abutting the main rod on which the top seat is mounted; and
each bottom seat has
a bottom abutting surface inclined upward, and selectively abutting the main rod on which the bottom seat is mounted.
2. A folding ball trolley comprising:
a frame having
two main rod assemblies arranged apart from each other; each main rod assembly having
two main rods pivotally connected to each other;
four top seats respectively and pivotally mounted on the four main rods of the main rod assemblies;
four bottom seats respectively and pivotally mounted on the four main rods of the main rod assemblies, and disposed below the top seats;
two connecting rod assemblies mounted between the main rod assemblies, and arranged apart from each other; the main rod assemblies and the connecting rod assemblies connected into a rectangle; each connecting rod assembly having
two connecting rods pivotally connected to each other; each connecting rod having
a top end pivotally connected to one of the top seats on one of the main rod assemblies; and
a bottom end pivotally connected to one of the bottom seats on the other main rod assembly; and
four wheels respectively mounted on bottom ends of the four main rods of the main rod assemblies; and
a bag mounted on the frame, connected to the main rods of the main rod assemblies, and having an inner space and an opening;
wherein
each top seat has
a top abutting surface inclined downward, and selectively abutting the connecting rod connected to the top seat; and
each bottom seat has
a bottom abutting surface inclined upward, and selectively abutting the connecting rod connected to the bottom seat.
3. A folding ball trolley comprising:
a frame having
two main rod assemblies arranged apart from each other; each main rod assembly having
two main rods pivotally connected to each other;
four top seats respectively and pivotally mounted on the four main rods of the main rod assemblies;
four bottom seats respectively and pivotally mounted on the four main rods of the main rod assemblies, and disposed below the top seats;
two connecting rod assemblies mounted between the main rod assemblies, and arranged apart from each other; the main rod assemblies and the connecting rod assemblies connected into a rectangle; each connecting rod assembly having
two connecting rods pivotally connected to each other; each connecting rod having
a top end pivotally connected to one of the top seats on one of the main rod assemblies; and
a bottom end pivotally connected to one of the bottom seats on the other main rod assembly; and
four wheels respectively mounted on bottom ends of the four main rods of the main rod assemblies; and
a bag mounted on the frame, connected to the main rods of the main rod assemblies, and having an inner space and an opening;
wherein
each top seat has
two top abutting surfaces inclined downward; one of the top abutting surfaces selectively abutting the main rod on which the top seat is mounted; the other top abutting surface selectively abutting the connecting rod connected to the top seat; and
each bottom seat has
two bottom abutting surfaces inclined upward; one of the bottom abutting surfaces selectively abutting the main rod on which the bottom seat is mounted; the other bottom abutting surface selectively abutting the connecting rod connected to the bottom seat.
4. The folding ball trolley as claimed in claim 3, wherein
each top seat has
four pivot walls; two of the pivot walls of the top seat respectively disposed in opposite sides of one of the top abutting surfaces, and pivotally connected to the main rod on which the top seat is mounted; the other two pivot walls of the top seat respectively disposed in opposite sides of the other top abutting surface, and pivotally connected to the connecting rod connected to the top seat; and
each bottom seat has
four pivot walls; two of the pivot walls of the bottom seat respectively disposed in opposite sides of one of the bottom abutting surfaces, and pivotally connected to the main rod on which the bottom seat is mounted; the other two pivot walls of the bottom seat respectively disposed in opposite sides of the other bottom abutting surface, and pivotally connected to the connecting rod connected to the bottom seat.
5. The folding ball trolley as claimed in claim 3, wherein
each top seat has a top long segment and a top short segment perpendicularly connected to each other; the top abutting surfaces of the top seat are respectively disposed in an end of the top long segment and an end of the top short segment; the four top seats respectively are two first top seats and two second top seats; the first top seats are disposed diagonally opposite to each other; the second top seats are disposed diagonally opposite to each other;
the top long segment and the top short segment of each first top seat are respectively and pivotally connected to the main rod on which the first top seat is mounted and the connecting rod connected to the first top seat;
the top long segment and the top short segment of each second top seat are respectively and pivotally connected to the connecting rod connected to the second top seat and the main rod on which the second top seat is mounted;
each bottom seat has a bottom long segment and a bottom short segment perpendicularly connected to each other; the bottom abutting surfaces of the bottom seat are respectively disposed in an end of the bottom long segment and an end of the bottom short segment; the four bottom seats respectively are two first bottom seats and two second bottom seats; the first bottom seats are disposed diagonally opposite to each other; the second bottom seats are disposed diagonally opposite to each other;
the bottom long segment and the bottom short segment of each first bottom seat are respectively and pivotally connected to the connecting rod connected to the first bottom seat and the main rod on which the first bottom seat is mounted;
the bottom long segment and the bottom short segment of each second bottom seat are respectively and pivotally connected to the main rod on which the second bottom seat is mounted and the connecting rod connected to the second bottom seat; and
the first top seats are respectively disposed aligned with and above the first bottom seats.
6. The folding ball trolley as claimed in claim 4, wherein
each top seat has a top long segment and a top short segment perpendicularly connected to each other; the top abutting surfaces of the top seat are respectively disposed in an end of the top long segment and an end of the top short segment; the four top seats respectively are two first top seats and two second top seats; the first top seats are disposed diagonally opposite to each other; the second top seats are disposed diagonally opposite to each other;
the top long segment and the top short segment of each first top seat are respectively and pivotally connected to the main rod on which the first top seat is mounted and the connecting rod connected to the first top seat;
the top long segment and the top short segment of each second top seat are respectively and pivotally connected to the connecting rod connected to the second top seat and the main rod on which the second top seat is mounted;
each bottom seat has a bottom long segment and a bottom short segment perpendicularly connected to each other; the bottom abutting surfaces of the bottom seat are respectively disposed in an end of the bottom long segment and an end of the bottom short segment; the four bottom seats respectively are two first bottom seats and two second bottom seats; the first bottom seats are disposed diagonally opposite to each other; the second bottom seats are disposed diagonally opposite to each other;
the bottom long segment and the bottom short segment of each first bottom seat are respectively and pivotally connected to the connecting rod connected to the first bottom seat and the main rod on which the first bottom seat is mounted;
the bottom long segment and the bottom short segment of each second bottom seat are respectively and pivotally connected to the main rod on which the second bottom seat is mounted and the connecting rod connected to the second bottom seat; and
the first top seats are respectively disposed aligned with and above the first bottom seats.
7. The folding ball trolley as claimed in claim 3, wherein the top seats and the bottom seats are the same in structure.
8. The folding ball trolley as claimed in claim 6, wherein the top seats and the bottom seats are the same in structure.
9. The folding ball trolley as claimed in claim 3 further comprising two engaging rod assemblies respectively mounted on the connecting rod assemblies; each engaging rod assembly having two engaging rods and an engager; outer ends of the engaging rods respectively and pivotally connected to the connecting rods of the connecting rod assembly; inner ends of the engaging rods pivotally connected to each other; the engager pivotally connected to one of the engaging rods, and selectively engaging with the other engaging rod.
10. The folding ball trolley as claimed in claim 8 further comprising two engaging rod assemblies respectively mounted on the connecting rod assemblies; each engaging rod assembly having two engaging rods and an engager; outer ends of the engaging rods respectively and pivotally connected to the connecting rods of the connecting rod assembly; inner ends of the engaging rods pivotally connected to each other; the engager pivotally connected to one of the engaging rods, and selectively engaging with the other engaging rod.
11. The folding ball trolley as claimed in claim 3, wherein the main rods and the connecting rods are square tubes.
12. The folding ball trolley as claimed in claim 10, wherein the main rods and the connecting rods are square tubes.
13. The folding ball trolley as claimed in claim 3, wherein the main rods and the connecting rods are made by aluminum extrusion.
14. The folding ball trolley as claimed in claim 12, wherein the main rods and the connecting rods are made by aluminum extrusion.
15. The folding ball trolley as claimed in claim 3, wherein
the bag has
a first outer surface;
a second outer surface opposite to the first outer surface; and
four mounting segments; two of the mounting segments mounted facing to each other on the first outer surface; the other two mounting segments mounted facing to each other on the second outer surface; each mounting segment being elongated, inclined downward from an outer end to an inner end and having an inner space and an opening; and
the main rods are respectively mounted in the mounting segments of the bag.
16. The folding ball trolley as claimed in claim 14, wherein
the bag has
a first outer surface;
a second outer surface opposite to the first outer surface; and
four mounting segments; two of the mounting segments mounted facing to each other on the first outer surface; the other two mounting segments mounted facing to each other on the second outer surface; each mounting segment being elongated, inclined downward from an outer end to an inner end and having an inner space and an opening; and
the main rods are respectively mounted in the mounting segments of the bag.
17. The folding ball trolley as claimed in claim 3 further comprising a fastening belt mounted on the bag and selectively surrounding and fastening the four main rods of the frame.
18. The folding ball trolley as claimed in claim 16 further comprising a fastening belt mounted on the bag and selectively surrounding and fastening the four main rods of the frame.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A flexible display apparatus comprising;
a first film including a first surface and a second surface that are opposite each other, and a first groove formed in the first surface, the first film having a first rigidity;
a third, film on the second surface of the first film;
a fourth film facing the third film;
an emission display unit between and encapsulated by the third film and the fourth film; and
a second film on the fourth film and facing the first film, the second film having a second rigidity that is less than the first rigidity,
wherein the emission display unit comprises a pixel electrode on the third film, an organic emission layer on the pixel electrode, and an opposite electrode on the organic emission layer,
wherein the fourth film is on the opposite electrode,
wherein a width of the first groove is at least two times greater than a thickness of the first film, and
wherein the first film is bendable by at least 90 degrees at the first groove.
2. The flexile display apparatus of claim 1,
wherein the flexible display apparatus comprises a neutral portion in which is tensile stress and a compressive stress are not incurred by a force when the force capable of bending the flexible display apparatus is applied to the flexible display apparatus, and
wherein the emission display unit is positioned at the neutral portion.
3. The flexible display apparatus of claim 1, further comprising a bending portion configured to be bent, wherein the first groove is positioned at the bending portion.
4. The flexible display apparatus of claim 1, wherein the first groove includes a plurality of grooves.
5. The flexible display apparatus of claim 1, wherein the first groove has a V-shape.
6. The flexible display apparatus of claim 5, wherein a depth h1 of the first groove satisfies an equation:
0<h1\u2266t1,
where t1 is the thickness of the first film.
7. The flexible display apparatus of claim 1, wherein the first film is divided by the first groove into a first region and a second region, and a portion of the third film is exposed at a region corresponding to the first groove.
8. The flexible display apparatus of claim 1, further comprising an elastic member in the first groove.
9. The flexible display apparatus of claim 1, wherein the second film includes a third surface adjacent to the fourth film, and a fourth surface opposite the third surface and having a second groove formed therein.
10. The flexible display apparatus of claim 1, wherein the third film has flexibility, and the fourth film is formed as a thin film comprising a multi-layered inorganic or an inorganic film and an organic film.
11. A method of manufacturing a flexible display apparatus, the method comprising:
forming a third film on a supporting substrate;
forming an emission display unit on the third film;
forming a fourth film on the emission display unit;
forming a second film having a second rigidity on the fourth film;
separating the supporting substrate from the third film; and
forming a first film on a surface of the third film opposite to another surface of the third film on which the emission display unit is formed, wherein the first film has a first rigidity greater than the second rigidity and comprises a second surface adjacent to the third film, and a first surface that is opposite to the second surface and has a first groove,
wherein the emission display unit comprises a pixel electrode on the third film, an organic emission layer on the pixel electrode, and an opposite electrode on the Organic emission layer,
wherein the fourth film is on the opposite electrode,
wherein a width of the first groove is at least two times greater than a thickness of the first film, and
wherein the first film is bendable by at least 90 degrees at the first groove.
12. The method of claim 11,
wherein the flexible display apparatus comprises a neutral portion in which a tensile stress and a compressive stress are not incurred by a force when the force capable of bending the flexible display apparatus is applied to the flexible display apparatus, and
wherein the emission display unit is positioned at the neutral portion.
13. The method of claim 11, wherein forming the first film comprises forming the first film having the first groove such that the first groove is positioned at a bending portion formed in the flexible display apparatus to allow the flexible display apparatus to be bent.
14. The method of claim 11, wherein the first groove includes a plurality of grooves.
15. The method of claim 11, wherein the first groove has a V-shape.
16. The method of claim 15, wherein as depth h1 of the first groove satisfies an equation:
0<h1\u2266t1,
where t1 is the thickness of the first film.
17. The method of claim 11, wherein the first film is divided by the first groove into a first region and a second region, and a portion of the third film is exposed at a region corresponding to the first groove.
18. The method of claim 11, further comprising forming an elastic member in the first groove.
19. The method of claim 11, wherein the second film has a third surface adjacent to the fourth film, and a fourth surface opposite the third surface and having a second groove formed therein.
20. The method of claim 1, wherein the third film has flexibility, and the fourth film is formed as a thin film comprising a multi-layered inorganic film, or an inorganic film and an organic film.