US3863934A - Dismountable column applicable to automatic record players - Google Patents
Dismountable column applicable to automatic record players Download PDFInfo
- Publication number
- US3863934A US3863934A US437625A US43762574A US3863934A US 3863934 A US3863934 A US 3863934A US 437625 A US437625 A US 437625A US 43762574 A US43762574 A US 43762574A US 3863934 A US3863934 A US 3863934A
- Authority
- US
- United States
- Prior art keywords
- column
- ring
- protuberance
- shaft
- groove
- 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
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
- the tubular shaft has a vertical groove therein within which is guided the protuberance and a ring-shaped groove positioned above the protuberance when the column is fully inserted within the tubular shaft.
- the ring-shaped groove carries an open elastic ring having an interior tongue which rides within the vertical groove and has a length not exceeding the thickness of the wall of the tubular shaft.
- the purpose of the present invention is to furnish a central dismountable column and mounting, in an automatic record player, without complicated mechanism, which would offer security and the required efficiency.
- This purpose is reached in an absolutely efficient way, by means of a simple procedure consisting of an axial effort of separating the said column and pushing it in order to mount the same. This takes place because of the existence ofa protuberance in the column, coinciding with a groove made in the flange ofa central hollow shaft, around which turns the plate of the record player.
- FIG. 1 is a perspective exposed view ofthe main elements composing the present invention
- FIG. 2 is an enlarged perspective view of the parts composing the coupling.
- FIG. 3 is a longitudinal view in partial diametric section at the coupling when assembled.
- FIG. 1 In FIG. 1 are shown column 1 the constitution and the mechanism of which is of general knowledge, hollow central shaft 2 and retention ring 3.
- column 1 has a pyramid-shaped protuberance 4, while hollow shaft 2 has a ring-shaped groove 5 and a vertical groove 6, exceeding in length the height of groove 5.
- Groove 6 is deep enough to communicate with the hollow portion of the shaft and to give access to pyramid-shaped protuberance 4, without any free space or adjustment.
- Ring 3 has an internal small tongue 7, which is in front of a cut 8 interrupting its continuity. Ring 3 has a certain elasticity, permitting it to expand diametrically.
- FIG. 3 shows a longitudinal view of all of the composing parts in their places after the column has been assembled.
- the lower portion of column I can be seen within the cylindrical hollow of shaft 2 with the pyramid-shaped protuberance 4 centered into vertical groove 6, and resting on stop 6' to determine the limit in depth of column 1.
- Elastic ring 3 is positioned in ring-shaped groove 5 yielding the necessary stop to the column.
- Tongue 7 penetrates up to the interior perimeter of the cylindrical hollowness of shaft 2 thereby positioning the pyramid-shaped protuberance 4.
- Ring 3 located in the ring-shaped groove 5, is in contact therewith in such a way that tongue 7 enters vertical groove 6.
- Column 1 is assembled with shaft 2 by introducing column 1 into the cylindrical hollowness of shaft 2 in such a way that pyramid-shaped protuberance 4 enters into vertical groove 6, which while being displaced axially will contact small tongue 7. Due to the elastic nature of ring 3 a slight push on column 1 forces protuberance 4 past tongue 7 and against bottom 6' of vertical groove 6.
- a dismountable column within a hollow shaft attachable to the base of a record player, said column having on a portion entering said shaft and on said portion a pyramid-shaped protuberance, said hollow shaft having a vertical groove within which is guided said protuberance and a ring-shaped groove positioned above said protuberance when the column is inserted fully within the shaft, and an elastic ring having an opening, the thickness of said ring being coincident with the width of the ring-shaped groove and having an interior coincident with the bottom of the ring-shaped groove when riding within said groove, said ring having a small interior tongue positioned opposite the opening to fit within the vertical groove and having a length not exceeding the thickness of the wall of the tubular shaft but of a length sufficient to engage said protuberance as said column is mounted or dismounted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AR246523A AR193481A1 (es) | 1973-02-09 | 1973-02-09 | Columna desmontable aplicable a tocadiscos automaticos |
Publications (1)
Publication Number | Publication Date |
---|---|
US3863934A true US3863934A (en) | 1975-02-04 |
Family
ID=3463602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US437625A Expired - Lifetime US3863934A (en) | 1973-02-09 | 1974-01-29 | Dismountable column applicable to automatic record players |
Country Status (10)
Country | Link |
---|---|
US (1) | US3863934A (es) |
JP (1) | JPS49113605A (es) |
AR (1) | AR193481A1 (es) |
AU (1) | AU6406573A (es) |
BR (1) | BR7304022D0 (es) |
DE (1) | DE2402727A1 (es) |
ES (1) | ES413304A1 (es) |
FR (1) | FR2217768B3 (es) |
IT (1) | IT1002780B (es) |
NL (1) | NL7306993A (es) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3588120A (en) * | 1969-04-21 | 1971-06-28 | Jack E Bayha | Plastic record turntable spindle |
-
1973
- 1973-02-09 AR AR246523A patent/AR193481A1/es active
- 1973-04-03 ES ES413304A patent/ES413304A1/es not_active Expired
- 1973-05-18 NL NL7306993A patent/NL7306993A/xx unknown
- 1973-05-30 BR BR4022/73A patent/BR7304022D0/pt unknown
- 1973-07-10 JP JP48077828A patent/JPS49113605A/ja active Pending
- 1973-12-28 AU AU64065/73A patent/AU6406573A/en not_active Expired
-
1974
- 1974-01-10 FR FR7401515A patent/FR2217768B3/fr not_active Expired
- 1974-01-21 DE DE2402727A patent/DE2402727A1/de active Pending
- 1974-01-28 IT IT47963/74A patent/IT1002780B/it active
- 1974-01-29 US US437625A patent/US3863934A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3588120A (en) * | 1969-04-21 | 1971-06-28 | Jack E Bayha | Plastic record turntable spindle |
Also Published As
Publication number | Publication date |
---|---|
IT1002780B (it) | 1976-05-20 |
AR193481A1 (es) | 1973-04-23 |
AU6406573A (en) | 1975-07-03 |
ES413304A1 (es) | 1976-01-16 |
BR7304022D0 (pt) | 1974-09-24 |
FR2217768A1 (es) | 1974-09-06 |
NL7306993A (es) | 1974-08-13 |
JPS49113605A (es) | 1974-10-30 |
DE2402727A1 (de) | 1974-08-22 |
FR2217768B3 (es) | 1976-11-05 |
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