Patent ID: 11945083
Assignee: KOKI HOLDINGS CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. The driving unit according to claim 5, wherein the pressure regulator comprises a first passage to which the gas is supplied from outside, a second passage connected to the pressure chamber, a third passage which discharges the gas from the second passage, and a regulating valve body which connects and disconnects the first passage and the second passage and connects and disconnects the second passage and the third passage;
wherein the regulating valve body connects the first passage and the second passage and disconnects the second passage and the third passage when a pressure of the pressure chamber is below a target pressure of the pressure chamber, and the regulating valve body disconnects the first passage and the second passage and connects the second passage and the third passage when the pressure of the pressure chamber exceeds the target pressure of the pressure chamber.