US 7,775,485 B2 Aug. 17, 2010
(54) DISPLAY SUPPORT ARM AND ULTRASONIC IMAGING APPARATUS
(75) Inventors: Akimasa Asai, Tokyo (JP); Koyoshi Matsumura, Tokyo (JP)
(73) Assignee: GE Medical Systems Global
Technology Company, LLC, Waukesha,
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 409 days.
(21) Appl.No.: 11/952,894
(22) Filed: Dec. 7, 2007
(65) Prior Publication Data
US 2008/0132786 Al Jun. 5, 2008
(30) Foreign Application Priority Data
Dec. 11,2006 (JP) 2006-333464
(51) Int. CI.
A47F 5/00 (2006.01)
(52) U.S. CI 248/125.7; 248/425; 248/921;
(58) Field of Classification Search 248/276.1,
248/921,122.1,125.7,425; 600/437 See application file for complete search history.
(56) References Cited
U.S. PATENT DOCUMENTS
A display support arm includes a first swing arm having a first end portion positioned vertically on top of a housing and further having a second end portion, the first swing arm causing the second end portion to rotate in a horizontal plane with the first end portion as a rotational center, a second swing arm having a third end portion joined vertically to the second end portion and further having a fourth end portion, the second swing arm causing the fourth end portion to rotate in a horizontal plane with the third end potion as a rotational center, a display joined vertically to the fourth end portion, a first lock device for locking a rotational motion of the first swing arm automatically when the housing and the first swing arm reach a predetermined relative position, a second lock device for locking a relative rotational motion of the first and second swing arms automatically when the first and second swing arms vertically reach a position where the two overlap each other, and a lock setting device for switching the first and second lock devices in one behavior to a lockable state able to effect locking automatically in the predetermined relative position and the overlapping position or an unlockable state failing to perform the locking in the predetermined relative position and the overlapping position.
19 Claims, 11 Drawing Sheets