Keyboard device

Details Keyboard device Keyboard device

2011-04-12

2011-04-12

Enad, Elvin G (Department: 2832)

Music

Instruments

General features

C084S439000

Reexamination Certificate

active

07923619

ABSTRACT:
A plurality of keys are supported at a key support parts such that the respective keys are pivoted by a key-pressing operation of a player in a vertical direction, the keys being arranged in parallel to each other along a width direction of the keyboard device. A plurality of hammers are arranged in parallel to each other along the width direction such that the hammers correspond to the respective keys. The hammers are operatively connected to the corresponding keys to rotate about the respective hammer support parts, the hammers applying inertia to pivoting movements of the corresponding keys. A frame has an opening portion open at a front area which faces the player, and located more frontward than the hammer support parts, and the frame is constructed such that the hammer support parts are located between an upper limit position and a lower limit position of the opening portion in the vertical direction, and the hammers can be inserted into the frame through the opening portion from the front area when the hammers are mounted to the respective hammer support parts.

REFERENCES:
patent: 4860630 (1989-08-01), Franz et al.
patent: 4993305 (1991-02-01), Franz et al.
patent: 5243125 (1993-09-01), Yamaguchi
patent: 5574241 (1996-11-01), Kumano et al.
patent: 5696340 (1997-12-01), Ragni
patent: 5821443 (1998-10-01), Masubushi
patent: 5834668 (1998-11-01), Kumano et al.
patent: 6147290 (2000-11-01), Uno
patent: 7208668 (2007-04-01), Shimoda
patent: 7297854 (2007-11-01), Nishida
patent: 7297855 (2007-11-01), Nishida
patent: 7332663 (2008-02-01), Nishida
patent: 7365259 (2008-04-01), Nishida
patent: 7485798 (2009-02-01), Nishida
patent: 7582821 (2009-09-01), Watanabe
patent: 7586030 (2009-09-01), Nishida
patent: 7696424 (2010-04-01), Osuga et al.
patent: 7709718 (2010-05-01), Osuga
patent: 7750222 (2010-07-01), Osuga
patent: 7767891 (2010-08-01), Yamaguchi
patent: 7767892 (2010-08-01), Osuga
patent: 7772474 (2010-08-01), Osuga
patent: 2010/0071531 (2010-03-01), Kitajima
patent: 2010/0071532 (2010-03-01), Kitajima et al.
patent: 2010/0071533 (2010-03-01), Suzuki
patent: 2010/0071534 (2010-03-01), Kitajima et al.
patent: 2010/0074668 (2010-03-01), Suzuki
patent: 06-025884 (1994-04-01), None
patent: 2004-226687 (2004-08-01), None
patent: 2007-025589 (2007-02-01), None

Affiliated with

Also associated with

Rating

Keyboard device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Keyboard device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keyboard device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2716926