The low pressure chamber airtight door which automatically releases the door lock

摘要

Topic Offer of the low pressure chamber airtight door which automatically releases the door lock with decompression distance.SolutionsAs for the low pressure chamber 1 which is put in airtight state, activating the decompression pump (not to illustrate,), when it enters into decompression distance, pressure of the low pressure chamber 1 decreases gradually, atmospheric pressure operation to the said airtight door 4, the gasket 26 which is allotted to the rim of airtight door 4 gradually keeps being crushed. Attendant upon that, cam follower the opening causes with 23 and inclined metallic parts 27 by also the airtight door 4 which with cam follower 23 and inclined metallic parts 27 is in door-lock state being drawn to frame flange 25 side. Like this, when it does, as for the lever 18 which is in inclined state it becomes impossible, to maintain inclined state, with tare weight facing toward the vertical lower part slowly turns, the cam follower 23 who binds wire in arm 20 comes to the point of breaking off from inclined metallic parts 27, the door lock of airtight door 4 means to be released automatically. Choice figure Drawing 5