ANALOG POINTING KEY STRUCTURE

WIPO Patent Application WO/2011/040162

A1

Disclosed is an analog pointing key structure provided with a rigid key top, a surrounding member having a hole from which the rigid key top is exposed, a support member to which the rigid key top is secured and in which an elastic return portion is allowed to move/return in a direction along the surface of the key top, a ring-like magnet member which is secured to the support member on the underside of the surrounding member and which is positioned between the rigid key top and the elastic return portion, a magnetic sensor for detecting the change of magnetic flux density caused by the movement of the magnet member in association with the rigid key top, an annular blindfold plate which is provided on the surface of the magnet member and which has an inner peripheral portion positioned on the inside of the hole of the surrounding member, a key top support plate to which the rigid key top is bonded and in which the outer peripheral portion thereof is positioned on the underside of the blindfold plate, and has an outer diameter larger than the inner diameter of the blindfold plate, and an elastic member which is secured to the underside of the support member and which allows the key top to move/return in the thickness direction of the support member.

YOSHIDA TAKAYA (JP)

PCT/JP2010/064704

April 07, 2011

August 30, 2010

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NEC CORP (JP)
YOSHIDA TAKAYA (JP)

H01H25/00

JP2005347042A	2005-12-15
JP2006201886A	2006-08-03
JP2008153233A	2008-07-03
JP2009226051A	2009-10-08
JP2007012591A	2007-01-18

TANAI Sumio et al. (JP)
Sumio Tanai (JP)

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