US 12,106,781 B2
Cutter unit for cutting a phonographic record, cartridge for a cutter unit, blank for a phonographic record and method for reading information from a blank
Florian Kaufmann, Solothurn (CH); Steve Knuchel, Biel (CH); Mario Weiss, Biel (CH); and Martin Sigrist, Biel (CH)
Assigned to PHONOCUT MASCHINEN GMBH, Vienna (AT)
Appl. No. 18/042,623
Filed by PHONOCUT MASCHINEN GMBH, Vienna (AT)
PCT Filed Aug. 23, 2021, PCT No. PCT/EP2021/073289
§ 371(c)(1), (2) Date Feb. 23, 2023,
PCT Pub. No. WO2022/043270, PCT Pub. Date Mar. 3, 2022.
Claims priority of application No. 1055/20 (CH), filed on Aug. 25, 2020.
Prior Publication US 2023/0360669 A1, Nov. 9, 2023
Int. Cl. G11B 3/02 (2006.01); G11B 3/72 (2006.01)
CPC G11B 3/02 (2013.01) [G11B 3/72 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A cartridge comprising a cutter unit for carrying a cutter for cutting a phonographic record,
the cutter unit comprising a cutter carrier and a cutter head,
the cutter head being carried by the cutter carrier and arranged to be displaced relative to the cutter carrier,
the cutter unit being arranged in the cartridge enclosing and protecting the cutter unit,
the cutter head carrying an advance ball for maintaining a constant distance between the cutter and the phonographic record, a height of the advance ball relative to the cutter being adjustable by an adjustment mechanism, the adjustment mechanism comprising an advance ball carrier carrying the advance ball, the advance ball carrier being mounted to be adjustably displaced relative to the cutter head, and to rotate, relative to the cutter head, around an advance ball carrier pivot,
wherein the cutter head is arranged to rotate relative to the cutter carrier around a cutter pivot, the advance ball carrier is arranged to rotate, relative to the cutter head, around the advance ball carrier pivot, and an axis of rotation of the cutter pivot and an axis of rotation of the advance ball carrier pivot are at a right angle to one another.