US3603598A - Pile axle - Google Patents

Pile axle Download PDF

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Publication number
US3603598A
US3603598A US802007A US3603598DA US3603598A US 3603598 A US3603598 A US 3603598A US 802007 A US802007 A US 802007A US 3603598D A US3603598D A US 3603598DA US 3603598 A US3603598 A US 3603598A
Authority
US
United States
Prior art keywords
record
supporting members
sleeve
control means
primary
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
US802007A
Other languages
English (en)
Inventor
Helmut Laufer
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.)
DEWEK VEREINIGTE DEUTSCHE ELECTRONIC-WERKE GmbH
Original Assignee
Dual Gebruder Steidinger GmbH and Co
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 Dual Gebruder Steidinger GmbH and Co filed Critical Dual Gebruder Steidinger GmbH and Co
Application granted granted Critical
Publication of US3603598A publication Critical patent/US3603598A/en
Assigned to DEWEK VEREINIGTE DEUTSCHE ELECTRONIC-WERKE GMBH reassignment DEWEK VEREINIGTE DEUTSCHE ELECTRONIC-WERKE GMBH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DUAL GEBRUDER STEIDINGER GMBH U. CO. 1.K,
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • a center spindle for a record-changing phonograph which comprises a sleeve having a plurality of axially directed slots disposed in two groups at different heights, and primary control means are provided in the sleeve and operable by an axial movement thereof.
  • a plurality of primary recordsupporting members are each placed in one of the slots of the upper of the groups and coupled with the primary control means such, that the primary record-supporting members are movable into a position outside of the outer periphery of the sleeve by the axial movement.
  • Secondary control means are arranged in the sleeve and operable by an axial movement thereof.
  • a plurality of secondary record-supporting members comprises obliquely upwardly arranged stays and each is placed in one of the slots of the lower of the groups; the upper end of the secondary record-supporting members, corresponding with about the thickness of one record.
  • the secondary record-supporting members are rotatably connected with the secondary control means in an axial plane of the center spindle, and a control edge fixed on the sleeve swings back the secondary record-supporting members from one rotary position outside of the outer periphery of the sleeve into the sleeve by the axial movement.
  • Spring means retain resiliently the secondary supporting members in a primary, median rotary position supporting the records such, that the weight of at least one record exerted upon the secondary record-supporting members swings the latter against the force of the spring means into a secondary rotary position of greater spread.
  • An abutment means is provided on the sleeve within the range of the axial movement of at least one of the secondary recordsupporting members.
  • At least one of the secondary recordsupporting members has an extension at its lower end such, that it moves during an axial downward movement of this one of the secondary record-supporting members towards the abutment means, thereby locking a further movement of the secondary control means, when the secondary record-supporting members are disposed in their primary, median rotary position, and the secondary record-supporting members pass freely the abutment means, upon moving into their secondary rotary position.
  • PATENTED SEP 7 ISII sum 1 0F 2 H I l ANVENIUR W icy/in.
  • the present invention relates to a center spindle usable for a record player or record-changing phonograph in general, and which has holding and supporting elements spreadable out of the spindle, whereby the holding and supporting elements comprise upwardly directed longitudinally displaceable stays, which are retained in their spreaded position by means of a spring force and are operated alternately next to the supporting elements by an axially displaceable rod, which is operated by the record changer.
  • the rod in turn cooperates with a shutoff device of the apparatus and is locked against its displacement movement by a member, which is retained by the records disposed in the storage staple of the throwout axles in an operative position.
  • the operating rod of the center spindle is locked by means of a separate sensing member sensing the rod bore, as soon as the sensing member moves into an empty space.
  • the provision of such sensing member is, however, practically possible only in connection with axles of 38 mm. and not with such of 7-mm. diameter.
  • the sensing of the bore wall of the record is provided directly by the clamping elements of the center spindle. If no record is present, the clamping elements perform an additional axial stroke, which operates the switchoff apparatus. This lifting stroke must be started by means of a particular member in addition to the control rod through the axis downwardly, which requires, first of all, a complicated production of the throwoff axles.
  • the operating rod is divided within the center spindle, whereby by a relative displacement of the two parts, a locking device becomes effective, which locks the working stroke of the part of the operating rod disposed on the driving side.
  • a locking device becomes effective, which locks the working stroke of the part of the operating rod disposed on the driving side.
  • FIG. 1 is an axial section of a center spindle in one operating position, a portion being cut away for clearer demonstration;
  • FIG. 2 is an axial section of the center spindle disclosed in FIG. 1, however, in a different operating position.
  • the center spindle comprises an outer sleeve l which is secured in the baseplate of the record changer.
  • a rod 3 In the sleeve l is displaceably mounted a rod 3. It has at its upper end three grooves 43, in each of which a secondary record supporting member 5 is guided, which supporting element 5 projects outwardly through slots 6 in the sleeve l, which slots 6 are disposed in two groups at different heights.
  • an axially displaceable holding member 7 for three holding elements h arranged set off relative to each other in relation to the secondary record-supporting members 5.
  • the holding part 7 is pushed downwardly by means of a spring 9, whereby the primary record-supporting members 8 engaging with their lower end on an inclined face it) of the sleeve 1 are pushed outwardly, the holding part '7, the spring 9 and the face Ml constituting a primary control means.
  • the rod 3 is coupled by means of a drive lever ill with the changing means and with the switchoff device, which are not shown.
  • the upper end of the secondary record-supporting members 5 are disposed at a distance below the lower end of the primary record-supporting members 8 corresponding with about the thickness of one record.
  • FIG. 1 shows the throwofi axle in its inoperative or resting position.
  • the rod 3 is disposed in an upper position against the effect of the spring 9, which pushes downwardly by means of the holding member 7.
  • the storage staple or stacks of records 12 supports itself on the supporting members 5, by supporting the latter with their part disposed in the spindle, on the one hand, on the inner wall of the sleeve 1 and, on the other hand, in the grooves d of the rod 3. If the driving lever llll is lowered, the supporting members 8 are pushed by the following holding member 7 along the inclined face 10 outwardly against the bore wall of the record 12 being the second lowest in the staple and hold tight the remaining staple of records.
  • an inclined edge 113 of the supporting members 5 runs onto the lower or control edge 14 of the sleeve slots 6, whereby the supporting members 5 are withdrawn by rotation about the point 15 into the sleeve l, which causes the release of the lowermost record 112.
  • the supporting members 5 move in reversed manner again outwardly, however, at first not yet into the starting position, rather only so far, until the edge 16 of the supporting members 5 stands vertical and engages in its entire length a cylindrical projection 17 of the rod 3, respectively, which is brought about by spring means, tag, a resilient wire ring lb.
  • the supporting member 5 is taken downwardly again in this swinging position by the rod 3 and runs thereby with an extension 1? at its lower end against an inward abutment 20, provided in the sleeve ll, within the range of the axial movement of at least one of the supporting members, whereby the normal path of the rod 3 is locked, which, in known, but not shown, manner, leads to the switching off of the record changer.
  • the spring means 318 resiliently returns the secondary record supporting members 5 in a primary, median rotary position supporting the records M such that the weight. of at least one record exerts upon the secondary record-supporting members 5 swings the latter against the force of the spring into a secondary rotary position of greater spread.
  • the rod 3 and the drive lever ll constitute a secondary control means.
  • a center spindle for a record-changing phonograph comprising a sleeve having a plurality of axially directed slots disposed in two groups at different heights,
  • a plurality of secondary record-supporting members comprising obliquely upwardly arranged stays and each placed in one of said slots of the lower of said groups,
  • said secondary record-supporting members being rotatably connected with said secondary control means in an axial plane of said center spindle,
  • said at least one of said secondary record-supporting members having an extension at its lower end such, that it moves during an axial downward movement of said one of said secondary record-supporting members towards said abutment means, thereby stopping the normal axial movement of said at least one secondary record-supporting member and locking a further movement of said secondary control means, when said secondary recordsupporting members are disposed in said primary, median rotary position, and said at least one of said secondary record-supporting members pass freely said abutment means, upon moving into said secondary rotary position.

Landscapes

  • Automatic Disk Changers (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
US802007A 1968-02-29 1969-02-25 Pile axle Expired - Lifetime US3603598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1622054 1968-02-29

Publications (1)

Publication Number Publication Date
US3603598A true US3603598A (en) 1971-09-07

Family

ID=5682593

Family Applications (1)

Application Number Title Priority Date Filing Date
US802007A Expired - Lifetime US3603598A (en) 1968-02-29 1969-02-25 Pile axle

Country Status (4)

Country Link
US (1) US3603598A (enrdf_load_stackoverflow)
DE (1) DE1622054B1 (enrdf_load_stackoverflow)
ES (1) ES363988A1 (enrdf_load_stackoverflow)
GB (1) GB1231758A (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
US2981953A (en) * 1956-03-05 1961-04-25 Hansen Hans Christian Magazine phonographs
DE1128166B (de) * 1959-09-21 1962-04-19 Electroacustic Gmbh Stapelachse fuer Plattenspielgeraete
DE1195965B (de) * 1956-03-05 1965-07-01 Electroacustic Gmbh Stapelachse fuer Plattenwechslergeraete

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981953A (en) * 1956-03-05 1961-04-25 Hansen Hans Christian Magazine phonographs
DE1195965B (de) * 1956-03-05 1965-07-01 Electroacustic Gmbh Stapelachse fuer Plattenwechslergeraete
DE1128166B (de) * 1959-09-21 1962-04-19 Electroacustic Gmbh Stapelachse fuer Plattenspielgeraete

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
ES363988A1 (es) 1971-01-01
DE1622054B1 (de) 1970-08-27
GB1231758A (enrdf_load_stackoverflow) 1971-05-12

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Legal Events

Date Code Title Description
AS Assignment

Owner name: DEWEK VEREINIGTE DEUTSCHE ELECTRONIC-WERKE GMBH, 7

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DUAL GEBRUDER STEIDINGER GMBH U. CO. 1.K,;REEL/FRAME:004356/0863

Effective date: 19841212