Keyboard apparatus

Details Keyboard apparatus Keyboard apparatus

2011-03-01

2011-03-01

Qin, Jianchun (Department: 2832)

Music

Instruments

General features

C084S236000

Reexamination Certificate

active

07897860

ABSTRACT:
A keyboard apparatus configured that heavy loads to support keys and hammers are perpendicularly applied to front-side and rear-side contact portions and the area of a front part of a frame as seen from side can be reduced, thereby suppressing an amount of use of resin. The keyboard apparatus includes a frame integrally formed by resin and mounted with a stopper mounting portion to which an initial stopper is mounted. The frame is supported on a keybed only by front-side and rear-side supporting portions respectively contacting the keybed at locations beneath hammer pivot shafts and beneath key supports. In a longitudinal region between the stopper mounting portion and the front-side supporting portion, the height position of a lowermost part of the frame become higher at a position closer to the stopper mounting portion.

REFERENCES:
patent: 5249497 (1993-10-01), Niitsuma et al.
patent: 5821443 (1998-10-01), Masubushi
patent: 7141729 (2006-11-01), Uno et al.
patent: 2004/0261598 (2004-12-01), Uno et al.
patent: 09-022288 (1997-01-01), None
patent: H09-244623 (1997-09-01), None
patent: 10-049166 (1998-02-01), None
patent: 3819136 (2006-09-01), None
patent: WO-2008/088106 (2008-07-01), None
European Search Report mailed Dec. 8, 2009, for EP Application No. 09170513.7, eight pages.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2762495