US3371935A - Stacking arbor for automatic record changers - Google Patents

Stacking arbor for automatic record changers Download PDF

Info

Publication number
US3371935A
US3371935A US587483A US58748366A US3371935A US 3371935 A US3371935 A US 3371935A US 587483 A US587483 A US 587483A US 58748366 A US58748366 A US 58748366A US 3371935 A US3371935 A US 3371935A
Authority
US
United States
Prior art keywords
arbor
stacking
record
records
stack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US587483A
Other languages
English (en)
Inventor
Kieninger Richard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PERPETUUM EBNER KG
Perpetuum-Ebner Fabrik fur Feinmechanik und Elektrotechnik Steidinger & Co Kom Ges
Original Assignee
PERPETUUM EBNER KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PERPETUUM EBNER KG filed Critical PERPETUUM EBNER KG
Application granted granted Critical
Publication of US3371935A publication Critical patent/US3371935A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/08—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records
    • G11B17/12—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis
    • G11B17/16—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis by mechanism in stationary centre post, e.g. with stepped post, using fingers on post

Definitions

  • ABSTRACT OF THE DISCLOSURE A stacking arbor for an automatic record changer having clamping and supporting members movable radially and vertically relative to each other which are operated by control means located in the stacking arbor and movable between two end positions by the control mechanism of the record changer, and locking means which in the absence of any record on the stacking arbor are moved to a locking position in which the control means are locked in one of the end positions thereof to initiate stopping of the record changer.
  • the stacking arbor according to the present invention for an automatic record changer mainly comprises stationary guide means for aligning a stack of records along an upright axis, control means guided by the guide means for reciprocating movement along the axis between two end positions and including a first member, support means carried by the first member ice movable between an active position supporting the stack of records on the arbor and a releasing position releasing the lowermost of the stack of records for downward movement along the upright axis, means on the stationary guide means cooperating with the support means for moving the latter to the releasing position when the control means is moved from one to the other of the end positions, a second member abutting against the first member, and spring means operatively connected to the members and biased so as to tend to move the members in direction of the axis away from each other.
  • the spring means have a spring force greater than the weight of the first member and the support means carried thereby, but smaller than the aforementioned weight and the weight of one record on the support means so that in the absence of a record on the support means the spring means will cause movement of the members relative to each other.
  • the arrangement includes further moving means connected to the second member for moving the control means between the positions thereof so as to release during movement of the control means from the one to the other end position thereof, the lowermost of the stack of records, and locking means movable between an inactive position and a locking position preventing movement of the control means from the one to the other end position, the locking means being moved to the locking position thereof when the members are moved by the spring means a predetermined distance relative to each other while the control means is in the region of the one end position.
  • the locking means comprise at least one ball located in a cut-out of the second member, which ball is moved by a guide face on the first member against a stationary abutment face when the members are moved under the influence of the spring means a predetermined distance relative to each other.
  • FIG. 1 is a partially sectioned side view of the stacking arbor according to the present invention, in which a stacking arbor is shown in a rest position supporting a stack of records;
  • FIG. 2 is a partially sectioned side view similar to FIG. 1 and showing the stacking arbor during release of the lowermost of the stack of records thereon;
  • FIG. 3 is a partially sectioned side view of the stacking arbor and showing the same in a position after the last record of the stack of records has been released;
  • FIG. 4 is a cross section taken along the line 4-4 of FIG. 3 and viewed in the direction of the arrows.
  • the stacking arbor mainly comprises stationary guide means in the form of a tubular member 1 connected at its lower end by means of a pin 15 to a bearing sleeve 26 which is fixedly connected in any convenient manner to the record player of which the stacking arbor of the present invention forms part.
  • Control means are slidably arranged in the interior of the tubular memher for reciprocating movement between an upper end position as shown in FIG. 1 and a lower end position as shown in FIG. 2.
  • These control means include a first member 3 in the form of a guide bolt slidably guided in the interior of the tubular member 1.
  • the member 3 carries support means for supporting a stack of records 6 aligned on the upper end of the stacking arbor along the upright axis of the tubular member 1.
  • the support means preferably comprise three support arms 2, only one of which is shown in FIG. 1, and the arms 2 are respectively displaced from each other through angles of 120 about the axis of the tubular member 1 and respectively extend, in the active position as shown in FIG. 1 in which the upper ends engage the bottom surface of the lowermost record 7 of the stack of records, inclined to the aforementioned axis through slots 1a formed in the tubular member.
  • the arms 2 are hingedly connected in the region of the inner ends thereof to the member 3 by means of a ring 4 located in an annular groove in the member 3 and engaging in cutouts of each of the arms 2.
  • the inner ends of the arms 2 are respectively arranged in substantially vertical slots formed in the member 3 and springs 5 fixed at the lower ends thereof to the member 3 in any convenient manner respectively engage the bottom ends of the arms 2 to press the latter in the region of the inner ends thereof against end faces of the aforementioned slots in the member 3 to yieldably hold the arms 2 in the active position as shown in FIG. 1.
  • the lower end face 42 of each slot 1a through the tubular member 1 is preferably downwardly and inwardly inclined for a purpose which will be described later on.
  • the control means arranged in the interior of the tubular member 1 further comprise a second member 16 slidably arranged in a lower portion of the tubular member 1, projecting with a lower end portion thereof downwardly beyond the tubular member 1 and connected at the lower end thereof by means of a coupling pin 17 to a coupling sleeve 18.
  • the coupling sleeve 18 forms part of the control mechanism of the record changer, otherwise not shown in the drawing, and the coupling sleeve 18 may be moved by means of a lever 25 also forming part of the aforementioned control mechanism upwardly and downwardly along the axis of the tubular member.
  • the member 16 is formed with a central stepped bore extending from the upper end of member 16 into the latter and a downwardly projecting portion 19 integral with the member 3 slidably extends into the bore formed in the member 16.
  • the arrangement includes further locking means movable between an inactive position and a locking position preventing movement of the control means constituted by the members 3 and 16.
  • the locking means may comprise three balls 20, only one of which is shown in FIG. 1 which are respectively rollingly arranged in three radial bores extending from the central bore in the member 16 to the outer surface thereof, angularly displaced from each other through angles of 120.
  • the control means include further a soft coil compresslon spring 21 having a spring force greater than the weight of the member 3 and the support arms 2 connected thereto, but smaller than the aforementioned weight and the additional weight of at least one record supported on the support arms so that when at least one record is supported on the support arms the spring 21 will be compressed and the member 3 will rest with a shoulder face on the upper end face of the member 16, as shown in FIG. 1.
  • a conical guide face 19a on the projecting portion 19 of the member 3 is positioned relative to the balls 20 as shown in FIG. 1 so that the balls may be located partly in the annular groove 1% provided in the projecting portion 19 between the ends thereof.
  • the member 16 is slidably guided in a guide sleeve 23 secured in a lower portion of the tubular member 1 by the aforementioned pin and the upper surface 22 of the guide sleeve 23 is an inwardly and downwardly inclined conical surface when cooperates With the ball during downward movement of the member 16 to press the ball inwardly or to maintain the balls 20 in the inner position as shown in FIG. 1 when the member 16 is moved by the lever 25 in downward direction.
  • the stacking arbor includes further holding means for holding the stack of records 6 with the exception of the lowest record 7 in a fixed position in the region of the upper end of the tubular member during movement of the control means from the upper position, as shown in FIG. 1, to a lower position and simultaneous release of the lowest record 7 for downward movement along the tubular member 1 in a manner as will be described later on.
  • the holding means include a camming member 8 having an upper substantially conical cam portion which is arranged in an upper portion of the tubular member 1 and fixedly held in place by a pin 9.
  • the member 8 is formed with a central bore therethrough, through which a pressure rod 10 integral with, or fixed in any convenient manner to, the member 3, projects upwardly to engage with its upper end the bottom surface of a disk 11 slidably guided in the tubular member 1.
  • Three clamping members 12, only one of which is shown in the drawings, are connected to the disk 11 by means of flexible holding arms 12a which are connected at the upper ends thereof to the disk 11 and at the lower ends thereof to the clamping members 12.
  • the holding arms 12a abut with the inner lower ends against the conical cam face of the member 8.
  • the clamping members 12 respectively extend with outer portions thereof through slots 1b formed, angularly displaced through angles of from each other, in the tubular member 1.
  • a coil compression spring 13 abuts with its lower end against the upper surface of the disk 11 and with its upper end against the bottom surface of a ring washer 14 so as to press the upper surface of the latter against an inwardly extending rim at the upper end of the tubular member 1.
  • the spring or second biasing means 13 tends therefore to move the disk 11 in downward direction to cause thereby in cooperation with the conical cam face of the member 8 spreading of the lower ends of the arms 12a in outward direction and to press the outer surfaces of the clamping members 12 against the peripheral surfaces of the central bores of a plurality of lower records of the stack of records.
  • the rod 10 prevents the spring 13 to move the disk 11 in downward direction.
  • a cap 24 preferably closes the upper end of the tubular member.
  • a turntable 27 is turnably mounted on the outer surface of the sleeve 26 and supported at its lower end by a ball bearing 28.
  • the stacking arbor is shown in FIG. 1 in an upper end position.
  • the lever 25 of the control mechanism holds by means of the coupling sleeve 18 the member 16 and the member 3 with the rod 10 in the position as illustrated in FIG. 1.
  • the rod 10 engages with its upper end the disk 11 and holds thereby the clamping members 12 in a position retracted into the tubular member 1 so that the stack of records 6 is supported exclusively by the support arms 2.
  • FIG. 2. illustrates the relative positions of the various components of the stacking arbor during release of the lowermost record 7 from the stack of records on the upper end of the arbor.
  • the member 16 has been moved by the lever 25 to the lower end position thereof.
  • the balls 20 have been moved during this downward movement of the member 16 by the conical face 22 on the upper end of the sleeve 23 to the inner position thereof and roll along the inner peripheral surface of the sleeve 23 so as to prevent by engagement with the conical surface 19a on the projecting portion 19 of the member 3 upwards movement of the member 3 relative to the member 16 which would otherwise occur under the influence of the force of the spring 21.
  • the upper end of the pressure rod 10 is, during downward movement of the member 3, disengaged from the bottom surface of the disk 11 so that the latter moves downwardly under the influence of the force of the spring 13, so that the cone face on the camming member 8 spreads the lower ends of the flexible arms 12a in outward direction to press thereby the outer faces of the clamping members 12 forcefully against the peripheral surfaces of the central bores of a plurality of lower records of the stack of records to hold thereby the stack of records, except the lowest record 7 of the original stack which is not ongaged by the clamping members 12, in fixed position in the region of the upper end of the tubular member 1.
  • the support arms 2 tiltably carried thereon will be moved by engagement with the surfaces 42 to their releasing position located entirely within the outer surface of the tubular member 1 so that the lowermost record 7 which is not engaged by the clamping members 12 can slide past the inwardly withdrawn supporting arms 2 downwardly onto the upper surface of the turntable 27.
  • FIG. 3 illustrates the position of the various elements of the stacking arbor will assume after the last record has moved onto the turntable.
  • no records are supported on the supporting arms 2 and the member 16 is moved by the lever 25 a short distance downwardly, whereby the flexible arms 12a are under the influence of the spring 13 pressed downwardly until the lower ends thereof engage a shoulder on the camrning member 8 to stop thereby the further downward movement of the disk 11 under the influence of the spring 13.
  • the spring 21 can move the member 3 upwardly relative to the member 16 as shown in FIG. 3.
  • the end of the lever 25 which is hingedly connected to the coupling sleeve 18 executes during presence of records on the supporting arms 2 a control movement in the order of to mm. or more, as can be ascertained from comparison of FIGS. 1 and 2 while in the absence of a record the maximum control movement of the end of the lever will he in the order of 2 mm. or less as is evident from comparison of FIGS. 1 and 3. In this way it is possible to obtain a control movement difference in the order to about 8 mm. which is available for control of the stopping mechanism of the record player.
  • the mechanism by means of which stopping of the record player is obtained when the lever 25 is arrested in the position as shown in FIG. 3 does not form part of the present invention and this mechanism is therefore not shown in the drawing.
  • This mechanism may comprise, in a known manner, a friction coupling or an elastic coupling element which, after blocking of the lever 25 in the position shown in FIG. 3, will initiate stopping of the record player.
  • a stacking arbor for an automatic record changer comprising, in combination, stationary guide means for aligning a stack of records along an upright axis; control means guided by said guide means for reciprocating movement along said axis between two end positions, said control means comprising a first member, support means carried by said first member movable between an active position supporting the stack of records and a releasing position releasing the lowermost of the stack of records for downward movement along said upright axis, means on the stationary guide means cooperating with said support means for moving the latter to said releasing position when said control means is moved from one to the other of the end positions thereof, a second member abutting against said first member, and spring means operatively connected to said members and biased so as to tend to move said members in direction of said axis away from each other, said spring means having a spring force greater than the weight of said first member and said support means carried thereby but smaller than the aforementioned weight and the weight of one record on said support means so that in the absence of a record on said support means said spring means will cause movement of said

Landscapes

  • Automatic Disk Changers (AREA)
  • Braking Arrangements (AREA)
  • De-Stacking Of Articles (AREA)
US587483A 1965-10-21 1966-10-18 Stacking arbor for automatic record changers Expired - Lifetime US3371935A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP37928A DE1221030B (de) 1965-10-21 1965-10-21 Stapelachse fuer automatischen Schallplattenwechsler

Publications (1)

Publication Number Publication Date
US3371935A true US3371935A (en) 1968-03-05

Family

ID=7375589

Family Applications (1)

Application Number Title Priority Date Filing Date
US587483A Expired - Lifetime US3371935A (en) 1965-10-21 1966-10-18 Stacking arbor for automatic record changers

Country Status (5)

Country Link
US (1) US3371935A (enrdf_load_stackoverflow)
JP (1) JPS4822441B1 (enrdf_load_stackoverflow)
CH (1) CH442785A (enrdf_load_stackoverflow)
DE (1) DE1221030B (enrdf_load_stackoverflow)
GB (1) GB1111069A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853326A (en) * 1971-10-21 1974-12-10 Matsushita Electric Ind Co Ltd Turntable arrangement with automatic record changer spindle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617655A (en) * 1948-06-03 1952-11-11 Cgs Lab Inc Record changer
DE1162590B (de) * 1962-04-14 1964-02-06 Arthur Steidinger Abschaltvorrichtung fuer Plattenwechsler
US3257114A (en) * 1961-08-31 1966-06-21 Hansen Hans Christian Phonograph record changers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749130A (en) * 1950-12-22 1956-06-05 Paillard Sa Automatic record changers
DE1049118B (de) * 1955-03-03 1959-01-22 Ind Musicales Et Electr Pathe Abnehmbare Stapelachse fuer Schallplattenwechsler
DE1030580B (de) * 1956-03-13 1958-05-22 Wilhelm Harting Fa Vorrichtung zur selbsttaetigen Endabschaltung bei Plattenwechslern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617655A (en) * 1948-06-03 1952-11-11 Cgs Lab Inc Record changer
US3257114A (en) * 1961-08-31 1966-06-21 Hansen Hans Christian Phonograph record changers
DE1162590B (de) * 1962-04-14 1964-02-06 Arthur Steidinger Abschaltvorrichtung fuer Plattenwechsler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853326A (en) * 1971-10-21 1974-12-10 Matsushita Electric Ind Co Ltd Turntable arrangement with automatic record changer spindle

Also Published As

Publication number Publication date
GB1111069A (en) 1968-04-24
JPS4822441B1 (enrdf_load_stackoverflow) 1973-07-06
DE1221030B (de) 1966-07-14
CH442785A (de) 1967-08-31

Similar Documents

Publication Publication Date Title
US2330293A (en) Tripping mechanism for recordchanging apparatus
JPH0127159Y2 (enrdf_load_stackoverflow)
US3371935A (en) Stacking arbor for automatic record changers
US2309352A (en) Pickup control mechanism for automatic phonographs
US4777550A (en) Shock absorbing apparatus for loading a magnetic disc on a disc drive
US3717350A (en) Cueing means for record player
US3021144A (en) Record changing mechanism
US3095199A (en) Sound reproducing apparatus using disc records
US2743109A (en) Record storing and ejecting mechanism for a phonograph
US2918288A (en) Record changers for phonographs
US3191943A (en) Spindle adapter
US3081093A (en) Record changing device
US2684248A (en) Record player with an automatic record changer
US4176846A (en) Actuating mechanism for a record changer with a stacking spindle
US3582083A (en) Pile axle
US4168069A (en) Stacking spindle for a phonograph record changer
US2527646A (en) Record changer trip mechanism
US3417998A (en) Vertical record player
US3000637A (en) Record supporting and releasing spindle for automatic talking machines
US3012789A (en) Gramophone record playing apparatus
US3360270A (en) Record spindle adaptor
US2661216A (en) Phonograph record changer
US3712630A (en) Spindle device for an automatic record changer
US2545359A (en) Automatic phonograph
US2739817A (en) Escapement mechanism for record players