Loading patent…
AssigneeKoninklijke Philips Electronics N.V.
InventorWaltherus Cornelis Jozef Bierhoff
Estimating the term…
The invention relates to a turntable (1) for a disc-shaped information carrier. The turntable is provided with a central element (2), which has a central shaft opening (8), a support surface (6) for the information carrier extending perpendicularly to a central axis of the shaft opening, and a driving member (3) having an output shaft (12) for rotationally driving the central element and the support surface. The output shaft and the shaft opening together form a clamping connection, and the output shaft extends in the shaft opening over an insertion length (1). According to the invention, the output shaft (12) is in clamping contact with the shaft opening (8) exclusively via a contact portion of the output shaft having a contact length which is smaller than the insertion length. Preferably, the contact portion exclusively comprises a first part (22) and a second part (23) respectively situated near both end portions of the shaft opening. The clamping connection according to the invention results in an improved perpendicularity between the output shaft (12) and the support surface (6). The turntable (1) according to the invention is suitable for use in a player according to the invention for disc-shaped information carriers.
Turntable for a disc-shaped information carrier, which turntable is provided with a central element with a shaft opening, a support surface for the information carrier extending perpendicularly to the central axis of the shaft opening, and a driving member having an output shaft for rotationally driving the central element and the support surface, which shaft forms a clamping connection with the shaft opening wherein the shaft extends over an insertion length, characterized in that only having a contact length which is smaller than the insertion length is in clamping contact with the shaft opening.
Turntable as claimed in any one of the preceding claims, characterized in that the output shaft has a diameter, over a portion of the insertion length that does not coincide with the contact portion, that is smaller than a diameter of the shaft at the location of the contact portion.
Turntable as claimed in any one of the preceding claims, characterized in that the shaft opening has a diameter, over a portion of the insertion length that does not coincide with the contact portion, that is greater than a diameter of the shaft opening at the location of the contact portion.
Turntable as claimed in any one of the preceding claims, characterized in that, over a portion of the insertion length that does not coincide with the contact portion, an adhesive is applied between the shaft and the shaft opening.
Dependencies are inferred from the claim text.