The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2008
Filed:
Jan. 12, 2006
Noboru Kobayashi, Hikone, JP;
Takahiro Nishinaka, Omihachiman, JP;
Kensaku Kanada, Hikone, JP;
Hiroaki Shimizu, Hikone, JP;
Ryo Motohashi, Hikone, JP;
Hidekazu Yabuuchi, Hikone, JP;
Noboru Kobayashi, Hikone, JP;
Takahiro Nishinaka, Omihachiman, JP;
Kensaku Kanada, Hikone, JP;
Hiroaki Shimizu, Hikone, JP;
Ryo Motohashi, Hikone, JP;
Hidekazu Yabuuchi, Hikone, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
The linear actuator for both vibrating and rolling movement according to one preferred embodiment of the present invention is comprised of a shaft supported so as to be movable reciprocally in an axis direction and a rotation direction about the axis, a first linear driver including a cylindrical stator having a winding wire thereon and a movable member arranged inside the stator so as to reciprocate the shaft linearly in the axis direction, a second linear driver including a cylindrical stator having a winding wire thereon and a movable member arranged inside the stator so as to reciprocate the shaft rollingly in the rotation direction, one of the movable members being secured on the shaft and another one of the movable members being movable relative to the shaft, and a coordinating member for enabling the shaft and the one of the movable member to move in opposite phase to the another one of the movable member.