Bearing structure and transmission structure in piano

Music – Instruments – Stringed

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

84452P, G10C 318, G10C 300

Patent

active

052994848

ABSTRACT:
A bearing structure in a piano action part which can always maintain the torque of rotation of a pin shaft supporting a hammer member within a predetermined range characterized in that the bearing structure comprises a pin shaft fixed to a hammer member, a support member having through-holes through which the pin shaft passes and cloth members with which the spaces between the through-holes and the pin shaft inserted through the through-hole are packed, and that the support member is made of a cellulose derivative resin composition containing silica having a number of silanol groups of 3.0 or less per 100 square .ANG. and a BET specific surface area of 100 to 210 m.sup.2 /g, and a transmission structure in a piano characterized in that the transmission structure comprises a hammer member and the above-mentioned bearing structure.

REFERENCES:
patent: 3583271 (1971-06-01), Corwin
patent: 3730963 (1973-05-01), Imagawa
patent: 4840104 (1989-06-01), Ishida et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Bearing structure and transmission structure in piano does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-505058

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.