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:
Mar. 06, 2012
Filed:
Aug. 26, 2008
Shinsuke Morita, Tokyo, JP;
Masato Shimokawa, Tokyo, JP;
Kazuyuki Nagase, Tokyo, JP;
Yoshinori Ishibashi, Tokyo, JP;
Yuji Hosokawa, Tokyo, JP;
Shinsuke Morita, Tokyo, JP;
Masato Shimokawa, Tokyo, JP;
Kazuyuki Nagase, Tokyo, JP;
Yoshinori Ishibashi, Tokyo, JP;
Yuji Hosokawa, Tokyo, JP;
Paramount Bed Co., Ltd., Tokyo, JP;
Abstract
Various means for detecting the load on the bottom of a bed are proposed, but they have various problems, since the load sensor is provided separately from a bed or installed outside a bed. This invention solves the abovementioned problems by a load sensor-containing actuator in which one end side of a screw shaftis rotatably supported by a base body; a female threaded memberis engaged with the screw shaft; and an actuation rod bodyfixed to the female threaded member can advance and retreat in the axial direction of the screw shaft, wherein the base body is provided with a thrust bearingcoaxially with the screw shaft and an actuation cylindersupporting the one end side of the screw shaft in the axial direction via the thrust bearing; a detection cylinderis provided between the actuation cylinder and a support memberfor the base body; and a strain gaugeis attached to the outside surface of the detection cylinder. The present invention relates to a foldable side rail for a bed or the like, particularly a foldable side rail in which multiple strut members are pivotally rotatably connected between an upper crosspiece member and a lower crosspiece member to form a parallel link mechanism.