A drawbar bracket 12 includes a first fastening plate 14, a second fastening plate 16, and a coupling member 18. The coupling member 18 couples the first fastening plate 14 to the second fastening plate 16. The first fastening plate 14 includes a first plate body 22, a first fastening part 24, and a first curved part 26. The first curved part 26 couples the first plate body 22 to the first fastening part 24 and has a curved shape. The second fastening plate 16 includes a second plate body 32, a second fastening part 34, and a second curved part 36. The second curved part 36 couples the second plate body 32 to the second fastening part 34 and has a curved shape.
