referring to fig1 to 6 , a paper cushion in accordance with a first preferred embodiment of the invention comprises the following components as discussed in detail below . an elongated , hollow support member 1 of h cross - section has two opposite open ends and comprises two hollow rectangular side walls 11 each comprising a lengthwise elongated trough 111 terminating at both ends . one side wall 11 further comprises a flat top surface 12 and a flat bottom surface 12 ′ and the other side wall 11 further comprises a flat top surface 13 and a flat bottom surface 13 ′. the support member 1 further comprises a hollow , rectangular intermediate plate 14 interconnecting both side walls 11 . the intermediate plate 14 has a flat top surface 141 , a flat bottom surface 142 , and a hollow h 1 between the top and bottom surfaces 141 and 142 . the intermediate plate 14 has an elevation slightly less than that of the trough 111 . each of two fixing members 2 has a rectangular end surface and two 90 - degree bent rectangular sides . the fixing member 2 comprises a top recess 21 . length of the side wall 11 is more than twice of that of the side of the fixing member 2 . in assembly , both sides of each fixing member 2 are inserted into the hollows of the side walls 11 as indicated by arrows p to frictionally secure to either end of the support member 1 . the tops of the sides of the fixing member 2 are slightly below the top surface 12 or 13 . as a result , a paper cushion is assembled and has a packing space v 1 having an open top . the packing space v 1 is defined by the fixing members 2 , the intermediate plate 14 , and upper portions of the side walls 11 . an article thus can be packed in the packing space v 1 for transport . referring to fig7 to 12 , a paper cushion in accordance with a second preferred embodiment of the invention comprises the following components as discussed in detail below . an elongated , hollow support member 1 of h cross - section has two opposite open ends and comprises two hollow rectangular side walls 11 each comprising a lengthwise elongated trough 111 terminating at both ends . one side wall 11 further comprises a flat top surface 12 and a flat bottom surface 12 ′ and the other side wall 11 further comprises a flat top surface 13 and a flat bottom surface 13 ′. the support member 1 further comprises a hollow , rectangular intermediate plate 14 interconnecting both side walls 11 . the intermediate plate 14 has a flat top surface 141 , a flat bottom surface 142 , and a hollow h 2 between the top and bottom surfaces 141 and 142 . the intermediate plate 14 has an elevation slightly less than that of the trough 111 . a first fixing member 2 has a rectangular end surface and two 90 - degree bent rectangular sides . the first fixing member 2 comprises a top recess 21 . a second fixing member 3 has a rectangular end surface 31 and two 90 - degree bent rectangular sides . the second fixing member 3 comprises an inverted l - shaped brace plate 32 extending inward from about top edge of the end surface 31 . either side of the brace plate 32 is spaced from either side of the second fixing member 3 by a distance substantially the same as the thickness of the inner surface of the upper portion of the side wall 11 . top of the brace plate 32 is disposed slightly below top of the second fixing member 3 . a recess 321 is formed on a bending edge of the brace plate 32 distal the end surface 31 . length of the side wall 11 is more than addition of the sides of the first and second fixing members 2 , 3 . in assembly , both sides of the first fixing member 2 are inserted into the hollows of the side walls 11 from one end as indicated by one arrow p and both sides of the second fixing member 3 are inserted into the hollows of the side walls 11 from the other end as indicated by the other arrow p to frictionally secure to both ends of the support member 1 . the inner surface of the upper portion of the side wall 11 is inserted into the gap between the brace plate 32 and either side of the second fixing member 3 and fastened together . the bottom edge of the brace plate 32 is rested upon the intermediate plate 14 . the tops of the sides of each of the first fixing member 2 and the second fixing member 3 are slightly below the top surface of the side wall 11 . as a result , a paper cushion is assembled and has a packing space v 2 having an open top . the packing space v 2 is defined by the first and second fixing members 2 and 3 , the intermediate plate 14 , and upper portions of the side walls 11 . an article thus can be packed in the packing space v 2 for transport . referring to fig1 to 18 , a paper cushion in accordance with a third preferred embodiment of the invention comprises the following components as discussed in detail below . an elongated , hollow support member 1 of h cross - section has two opposite open ends and comprises two hollow rectangular side walls 11 each comprising a lengthwise elongated trough 111 terminating at both ends . one side wall 11 further comprises a flat top surface 12 and a flat bottom surface 12 ′ and the other side wall 11 further comprises a flat top surface 13 and a flat bottom surface 13 ′. the support member 1 further comprises a hollow , rectangular intermediate plate 14 interconnecting both side walls 11 . the intermediate plate 14 has a flat top surface 141 , a flat bottom surface 142 , and a hollow h 3 between the top and bottom surfaces 141 and 142 . the intermediate plate 14 has an elevation slightly less than that of the trough 111 . each of two fixing members 3 has a rectangular end surface 31 and two 90 - degree bent rectangular sides . the fixing member 3 comprises an inverted l - shaped brace plate 32 extending inward from about top edge of the end surface 31 . either side of the brace plate 32 is spaced from either side of the fixing member 3 by a distance substantially the same as the thickness of the inner surface of the upper portion of the side wall 11 . top of the brace plate 32 is disposed slightly below top of the fixing member 3 . a recess 321 is formed on a bending edge of the brace plate 32 distal the end surface 31 . length of the side wall 11 is more than twice of that of the side of the fixing member 3 . in assembly , both sides of each fixing member 3 are inserted into the hollows of the side walls 11 from either end as indicated by arrows p to frictionally secure to both ends of the support member 1 . the inner surface of the upper portion of the side wall 11 is inserted into the gap between the brace plate 32 and either side of the fixing member 3 and fastened together . the bottom edge of the brace plate 32 is rested upon the intermediate plate 14 . the tops of the sides of each fixing member 3 are slightly below the top surface of the side wall 11 . as a result , a paper cushion is assembled and has a packing space v 3 having an open top . the packing space v 3 is defined by the fixing members 3 , the intermediate plate 14 , and upper portions of the side walls 11 . an article thus can be packed in the packing space v 3 for transport . referring to fig1 to 24 , a paper cushion in accordance with a fourth preferred embodiment of the invention comprises the following components as discussed in detail below . an elongated , hollow support member 1 ′ of h cross - section has two opposite open ends and comprises two hollow rectangular side walls 11 each comprising a lengthwise elongated trough 111 terminating at both ends . one side wall 11 further comprises a flat top surface 1 ′ 2 and a flat bottom surface 1 ′ 2 ′ and the other side wall 1 ′ 1 further comprises a flat top surface 1 ′ 3 and a flat bottom surface 1 ′ 3 ′. the support member 1 ′ further comprises a hollow , rectangular intermediate plate 1 ′ 4 interconnecting both side walls 1 ′ 1 . the intermediate plate 1 ′ 4 has a flat top surface 1 ′ 41 , a flat bottom surface 1 ′ 42 , and a hollow h 4 between the top and bottom surfaces 1 ′ 41 and 1 ′ 42 . the intermediate plate 1 ′ 4 has an elevation slightly less than that of the trough 1 ′ 11 . each of two fixing members 4 has a rectangular end surface 42 and two 90 - degree bent rectangular sides . the fixing member 4 comprises an inverted l - shaped brace plate 41 extending inward from about top edge of the end surface 42 , and a curved cavity 421 on a bottom edge of the end surface 42 . either side of the brace plate 41 is spaced from either side of the fixing member 4 by a distance substantially the same as the thickness of the inner surface of the upper portion of the side wall 1 ′ 1 . top of the brace plate 41 is disposed slightly below top of the fixing member 4 . a recess 411 is formed on a bending edge of the brace plate 41 distal the end surface 42 . length of the side wall 11 is more than twice of that of the side of the fixing member 4 . in assembly , both sides of each fixing member 4 are inserted into the hollows of the side walls 1 ′ 1 from either end as indicated by arrows p to frictionally secure to both ends of the support member 1 ′. the inner surface of the upper portion of the side wall 1 ′ 1 is inserted into the gap between the brace plate 41 and either side of the fixing member 4 and fastened together . the bottom edge of the brace plate 41 is rested upon the intermediate plate 1 ′ 4 . the tops of the sides of each fixing member 4 are slightly below the top surface of the side wall 1 ′ 1 . as a result , a paper cushion is assembled and has a packing space v 4 having an open top . the packing space v 4 is defined by the fixing members 4 , the intermediate plate 1 ′ 4 , and upper portions of the side walls 1 ′ 1 . an article thus can be packed in the packing space v 4 for transport . referring to fig2 to 30 , a paper cushion in accordance with a fifth preferred embodiment of the invention comprises the following components as discussed in detail below . an elongated , hollow support member 2 ′ of h cross - section has two opposite open ends and comprises two hollow rectangular side walls 2 ′ 1 each comprising a lengthwise elongated trough 2 ′ 11 terminating at both ends . one side wall 2 ′ 1 further comprises a flat top surface 2 ′ 2 and a flat bottom surface 2 ′ 2 ′ and the other side wall 2 ′ 1 further comprises a flat top surface 2 ′ 3 and a flat bottom surface 2 ′ 3 ′. the support member 2 ′ further comprises a hollow , rectangular intermediate plate 2 ′ 4 interconnecting both side walls 2 ′ 1 . the intermediate plate 2 ′ 4 has a flat top surface 2 ′ 41 , a flat bottom surface 2 ′ 42 , a hollow h 5 between the top and bottom surfaces 2 ′ 41 and 2 ′ 42 , and a rectangular opening 2 ′ 43 through the top surface 2 ′ 41 , the hollow h 5 , and the bottom surface 2 ′ 42 . the intermediate plate 2 ′ 4 has an elevation slightly less than that of the trough 2 ′ 11 . each of two fixing members 5 has a rectangular end surface 52 and two 90 - degree bent rectangular sides . the fixing member 5 comprises an inverted l - shaped brace plate 51 extending inward from about top edge of the end surface 52 , and a curved cavity 521 on a bottom edge of the end surface 52 . either side of the brace plate 51 is spaced from either side of the fixing member 5 by a distance substantially the same as the thickness of the inner surface of the upper portion of the side wall 2 ′ 1 . top of the brace plate 51 is disposed slightly below top of the fixing member 5 . a recess 511 is formed on a bending edge of the brace plate 51 distal the end surface 52 . length of the side wall 2 ′ 1 is more than twice of that of the side of the fixing member 5 . in assembly , both sides of each fixing member 5 are inserted into the hollows of the side walls 2 ′ 1 from either end as indicated by arrows p to frictionally secure to both ends of the support member 2 ′. the inner surface of the upper portion of the side wall 2 ′ 1 is inserted into the gap between the brace plate 51 and either side of the fixing member 5 and fastened together . the bottom edge of the brace plate 51 is rested upon the intermediate plate 2 ′ 4 . the tops of the sides of each fixing member 5 are slightly below the top surface of the side wall 2 ′ 1 . as a result , a paper cushion is assembled and has a packing space v 5 having an open top . the packing space v 5 is defined by the fixing members 5 , the intermediate plate 2 ′ 4 , and upper portions of the side walls 2 ′ 1 . an article thus can be packed in the packing space v 4 for transport . referring to fig3 to 36 , a paper cushion in accordance with a sixth preferred embodiment of the invention comprises the following components as discussed in detail below . an elongated , hollow support member 1 ′ of h cross - section has two opposite open ends and comprises two hollow rectangular side walls 11 each comprising a lengthwise elongated trough 111 terminating at both ends . one side wall 11 further comprises a flat top surface 1 ′ 2 and a flat bottom surface 1 ′ 2 ′ and the other side wall 11 further comprises a flat top surface 1 ′ 3 and a flat bottom surface 1 ′ 3 ′. the support member 1 ′ further comprises a hollow , rectangular intermediate plate 1 ′ 4 interconnecting both side walls 1 ′ 1 . the intermediate plate 1 ′ 4 has a flat top surface 1 ′ 41 , a flat bottom surface 1 ′ 42 , and a hollow h 4 between the top and bottom surfaces 1 ′ 41 and 1 ′ 42 . the intermediate plate 1 ′ 4 has an elevation slightly less than that of the trough 1 ′ 11 . each of two fixing members 6 has a rectangular end surface 62 and two 90 - degree bent rectangular sides . the fixing member 6 comprises an inverted l - shaped brace plate 61 extending inward from about top edge of the end surface 62 , a curved well 611 on an intermediate portion of the brace plate 61 , and a curved cavity 621 on a bottom edge of the end surface 62 . either side of the brace plate 61 is spaced from either side of the fixing member 6 by a distance substantially the same as the thickness of the inner surface of the upper portion of the side wall 1 ′ 1 . top of the brace plate 61 is disposed slightly below top of the fixing member 6 . length of the side wall 1 ′ 1 is more than twice of that of the side of the fixing member 6 . in assembly , both sides of each fixing member 6 are inserted into the hollows of the side walls 1 ′ 1 from either end as indicated by arrows p to frictionally secure to both ends of the support member 1 ′. the inner surface of the upper portion of the side wall 1 ′ 1 is inserted into the gap between the brace plate 61 and either side of the fixing member 6 and fastened together . the bottom edge of the brace plate 61 is rested upon the intermediate plate 1 ′ 4 . the tops of the sides of each fixing member 6 are slightly below the top surface of the side wall 1 ′ 1 . as a result , a paper cushion is assembled and has a packing space v 6 having an open top . the packing space v 6 is defined by the fixing members 6 , the intermediate plate 1 ′ 4 , and upper portions of the side walls 1 ′ 1 . an article thus can be packed in the packing space v 6 for transport . while the invention herein disclosed has been described by means of specific embodiments , numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims .