Title:
LID LOCKING DEVICE AND PRESSURE VESSEL
Document Type and Number:
WIPO Patent Application WO/2023/233806
Kind Code:
A1
Abstract:
A locking device (6) for a lid (3) comprises: a clamp (10) that fits a flange portion (4) from the outside; a clamp shaft (25) that serves as the center of rotation of the clamp (10); a clamp bearing (20) that rotatably supports the clamp (10) via the clamp shaft (25); a slide portion (14) that moves together with the clamp (10); and a flat circumferential movement plate (30) that is disposed at a distance around the outer periphery of the flange portion (4), is movable in the circumferential direction of a container (2), and has a guide portion (31) that guides the movement of the slide portion (14). The clamp (10) has a fitting portion (11) having a U-shaped cross section. The circumferential movement plate (30) moves to one side in the circumferential direction to position the slide portion (14) at one end (31a) of the guide portion (31), thereby bringing the clamp (10) into a fitted state, and moves to the other side in the circumferential direction to position the slide portion (14) at the other end (31b) of the guide portion (31), thereby releasing the clamp (10) from the fitted state.
Inventors:
SEKI TAKASHI (JP)
Application Number:
PCT/JP2023/013884
Publication Date:
December 07, 2023
Filing Date:
April 04, 2023
Export Citation:
Assignee:
HIRAYAMA MFG CORPORATION (JP)
International Classes:
B65D45/20; A47J27/08; B65D45/28; F16J13/06
Foreign References:
| JPS5878624A | 1983-05-12 | |||
| JPS5554760A | 1980-04-22 | |||
| US4470515A | 1984-09-11 | |||
| US6450361B1 | 2002-09-17 | |||
| JP2007283060A | 2007-11-01 |
Attorney, Agent or Firm:
SANADA PATENT FIRM (JP)
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