| 摘要 |
A FRAME ASSEMBLY FOR A VEHICLE INCLUDES A HEAD PIPE (20), A DOWN TUBE (21), A LEFT SIDE TUBE (22), A RIGHT SIDE TUBE (23), AN ANGULAR PIPE FRAME (24), A CROSS-PIPE (25), AND A SEAT PIPE (26). THE HEAD PIPE INCLUDES INSIDE A STEERING SHAFT (3) CONNECTED TO A HANDLE. THE DOWN TUBE HAS A FRONT END PORTION CONNECTED TO A LOWER FACE (20A) OF THE HEAD PIPE AND IS EXTENDED OBLIQUELY DOWNWARDS IN A VEHICLE. THE LEFT SIDE TUBE HAS A FRONT END PORTION CONNECTED TO THE HEAD PIPE AND IS CURVED ALONG ONE SIDE FACE (21A) OF THE VEHICLE. THE RIGHT SIDE TUBE HAS A FRONT END PORTION CONNECTED TO THE HEAD PIPE AND IS CURVED ALONG THE OTHER SIDE FACE (21 B) OF THE VEHICLE. THE ANGULAR PIPE FRAME IS CONNECTED TO A REAR END PORTION OF THE LEFT SIDE TUBE. THE CROSS-PIPE CONNECTS THE LEFT SIDE TUBE WITH THE RIGHT SIDE TUBE. THE SEAT PIPE HAS A FRONT END PORTION CONNECTED TO A RISING PORTION OF THE ANGULAR PIPE FRAME, AND A REAR END PORTION CONNECTED TO A REAR END PORTION OF THE ANGULAR PIPE FRAME THROUGH A REINFORCING PLATE. EACH OF THE LEFT SIDE TUBE, RIGHT SIDE TUBE, CROSS-PIPE, AND SEAT PIPE HAS A CROSS-SECTION OF A CIRCULAR SHAPE. THE ANGULAR PIPE FRAME HAS A CROSS-SECTION OF AN ANGULAR OR ELLIPTIC SHAPE.(FIG 2)
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