| 摘要 |
PROBLEM TO BE SOLVED: To provide a spring brake chamber in which damage can be prevented without increasing its weight or cost even if an overpressure is applied in a primary side chamber.SOLUTION: A spring brake chamber 1 comprises: a first case 4 that constitutes a primary side chamber 2 and has a bottomed cylindrical shape on one side; a second case that constitutes a secondary side chamber and has a cylindrical shape; and a connecting case 6 that connects both cases. The spring brake chamber 1 comprises: an inside positioning portion 18 that is formed at an opening end portion on the first case 4 side of the connecting case 6 and has a tapered shape decreasing in diameter toward the opening side; and an outside positioning portion 17 that is formed at an opening end portion 4a of the first case 4 and has a tapered shape increasing in diameter toward the opening side. The first case 4 is positioned with respect to the connecting case 6 by attaching the outside positioning portion 17 to the outside of the inside positioning portion 18. |
