CA1069442A - Phonograph record player with repeat control - Google Patents
Phonograph record player with repeat controlInfo
- Publication number
- CA1069442A CA1069442A CA270,716A CA270716A CA1069442A CA 1069442 A CA1069442 A CA 1069442A CA 270716 A CA270716 A CA 270716A CA 1069442 A CA1069442 A CA 1069442A
- Authority
- CA
- Canada
- Prior art keywords
- repeat
- lever
- movement
- mode
- tone arm
- 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
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/02—Arrangements of heads
- G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
- G11B3/095—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers for repeating a part of the record; for beginning or stopping at a desired point of the record
Landscapes
- Transmission Devices (AREA)
- Automatic Disk Changers (AREA)
- Vending Machines For Individual Products (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A record player having single lever presetting control for manual and repeat operation. The record player has tone-arm locking when a final repeat cycle has been terminated.
A repeat designating lever and an operating member for operating the designating lever per repeat cycle, while the operating lever engages the repeat designating lever only for a given per-iod of time. A feed member is urged in one direction under the action of a spring, is secured to a repeat feed level reciprocable in response to one cycle of notation of a drive gear driven in association with rotation of a turn-table, while the feed member is so designed as to engage a tooth cam of a repeat feed plate which stores a repeat cycle commensurate with an extent of its displacement, before the completion of one cycle of rotation of the drive gear, thereby causing a given extent of displacement of the saw tooth cam, with the result that the number of parts may be reduced and the count-down of a repeat memory may be readily accomplished by an arbitrary operation of a single mode-shifting rod.
A record player having single lever presetting control for manual and repeat operation. The record player has tone-arm locking when a final repeat cycle has been terminated.
A repeat designating lever and an operating member for operating the designating lever per repeat cycle, while the operating lever engages the repeat designating lever only for a given per-iod of time. A feed member is urged in one direction under the action of a spring, is secured to a repeat feed level reciprocable in response to one cycle of notation of a drive gear driven in association with rotation of a turn-table, while the feed member is so designed as to engage a tooth cam of a repeat feed plate which stores a repeat cycle commensurate with an extent of its displacement, before the completion of one cycle of rotation of the drive gear, thereby causing a given extent of displacement of the saw tooth cam, with the result that the number of parts may be reduced and the count-down of a repeat memory may be readily accomplished by an arbitrary operation of a single mode-shifting rod.
Description
16~69~
BACKGROUND OF THE INVENTION
Field of the Invention:
This invention relates to a record player, and more particularly to a novel record player having an automatic repeat conkrol and a manual control mechanisms.
Description of the Prior Art~
An automatic record player is known as one type of a record player. In this type record player r when a start lever is operated, and a tone arm is shifted from its rest position onto a record disc, then a record playing or reproduction is started. Upon the completion of record playing, the tone arm is automatically returned to its -::
rest position. In this mannerl the automatic record player can reproduce disc music no more than once. However, the user sometimes wants to reproduce a specific record disc repeatedly. To ~his end, there has been proposed a record player affording an auto-repeat function~ With `
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this ~ype record pla~er~ the record player repeatedly plays the same record disc, unless the u~er operates a ~top or reject lever. I~ this connection9 there has been proposed a record player, in which the cycle of the repeat reproduction may be preset to a desired value. ~or ins~ance, as disclosed in USP 3~827,6979 a repeat mechanism repeats reproduction9 depending on the cycle marked on an index wheel~ after which an arm is lo~ked. In thi~ case, how ever, it i9 impossible to reproduce a desired track alone manually~ In addition, in case the presettin~ of repeat cycle iæ desired to be correcte~ since a detent pin is;
urged against the saw teeth o~ an index ~heel all the times? so-that -the index wheel can not be rotated in the reverse-direction. As a result, -the index wheel has to ing be rotated only in one direction ~or correc-t/~he presetting.
S~ARY 0~ ~HE INVEN~IO~
I~ is an object of the present invention ~o provid~
a record pla~er which allows both the ma~ual reproductio~
and repeat reproduction o~ a record disc by means o~ a single~lever.
It is another object of the present invention to provide a r~cord player which allows the prese-tting o~
manual reproduction and repeat reproauction acc~rding to a given cgcle~ ~
It is a further object of the present invention to
BACKGROUND OF THE INVENTION
Field of the Invention:
This invention relates to a record player, and more particularly to a novel record player having an automatic repeat conkrol and a manual control mechanisms.
Description of the Prior Art~
An automatic record player is known as one type of a record player. In this type record player r when a start lever is operated, and a tone arm is shifted from its rest position onto a record disc, then a record playing or reproduction is started. Upon the completion of record playing, the tone arm is automatically returned to its -::
rest position. In this mannerl the automatic record player can reproduce disc music no more than once. However, the user sometimes wants to reproduce a specific record disc repeatedly. To ~his end, there has been proposed a record player affording an auto-repeat function~ With `
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this ~ype record pla~er~ the record player repeatedly plays the same record disc, unless the u~er operates a ~top or reject lever. I~ this connection9 there has been proposed a record player, in which the cycle of the repeat reproduction may be preset to a desired value. ~or ins~ance, as disclosed in USP 3~827,6979 a repeat mechanism repeats reproduction9 depending on the cycle marked on an index wheel~ after which an arm is lo~ked. In thi~ case, how ever, it i9 impossible to reproduce a desired track alone manually~ In addition, in case the presettin~ of repeat cycle iæ desired to be correcte~ since a detent pin is;
urged against the saw teeth o~ an index ~heel all the times? so-that -the index wheel can not be rotated in the reverse-direction. As a result, -the index wheel has to ing be rotated only in one direction ~or correc-t/~he presetting.
S~ARY 0~ ~HE INVEN~IO~
I~ is an object of the present invention ~o provid~
a record pla~er which allows both the ma~ual reproductio~
and repeat reproduction o~ a record disc by means o~ a single~lever.
It is another object of the present invention to provide a r~cord player which allows the prese-tting o~
manual reproduction and repeat reproauction acc~rding to a given cgcle~ ~
It is a further object of the present invention to
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provide a record player which allows ~he eas;sr set-ting of repeat reproduction.
It is a still further object of the present invention to provide a record player, in which a ma~ual reproducing position is provided between a repeat cycle setting position and an operation-stopping position~ thus facilitating ~he operation.
It is a ~et further object of the present invention to provide a record player which is provided with means for -temporarily locking a tone arm, when the final repeat cycle has been terminated7 so as to prevent further reproduction and hence mal-f~unctioning of the record player.
It is a further object of the present invention to provide a record pla~er which is provided with a repeat-cycle designating lever~ and an operating mem~er for operating the designating lever per repeat cycle~ while the operating lever engages the repeat designating lever - -only for a given period oP time~ so that the repeat designating lever ma~ be free to move slidingly.
It is a further object of the present invention to provide a record player, in which a feed member that is urged in one direction under the action of a spring is seoured to a repeat feed lever reciprocable in response to one cycle of rotatio~ o~ a drive gear driven in association with the rotation of a turn table, while the aforesaid feed membèr is so designed as to engage a saw ', ' ' .. ~ ' .:, ' . ~... ..
... . .... . . ............. . . . . . . .
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tooth ca~ of a ~epeat feed plate which stores a repeat cycle commensurate with an extent o~ its displacement, before the completion of one cycle of rotation of the drive gear, thereby causing a giyen extent of displacement of the saw tooth cam, with the result that the number of parts may be reduced and the count-down of a repeat memory may be readily accomplished by an arbitrary operation of a single mode-shifting rod.
It is a further object of the present invention to provide a record player~ in which a drive gear is forcibly locked, thereby preventing the mal-functioning of the player during the reproduction of a record disc~ and insuring positive repeat reproduction.
In accordance with the foregoing objects, there is provided:-In a phonograph record player having a rotatable turntable for supporting a phonograph record during the playing thereof, drive means for rotating said turntable, and a tone arm assembly including a tone arm carrying a pickup with a stylus to track the groove of a phonograph record on said turntable during a play operation and being mounted for lead-in movement of said tone arm from an elevated rest position outside the perimeter of said turntable to a selected set-down position of the stylus on a record supported by said turntable for commencement of a play operation and for return movement o said tone arm to said rest position upon the termination of a play operation: a control mechanism comprising gear means selectively driven by said drive means;
trip means actuable at will and upon completion of each play operation to cause a period of driving of said :
gear means by said drive means; :
lever means driven by said gear means for urging ~ -4-~ .
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-- , . . . -- , , -- , -- . . -- . , , said tone arm to automatically undergo said return movement and then said lead-in movement during respective portions of each period of driving of said gear means;
latch means for preventing said lead-in movement of the tone arm under the urging of said lever means;
a mode selecting member manually movable to positions for selecting stop, manual and repeat modes of ~
operation, respectively, of the record player;
means for causing operation of said drive means when said mode selecting member is in any one of said positions thereof for selecting the manual and repeat modes of operation, : :
respectively; .
means for disengaging said latch means in response to the disposition of said mode selecting member in . .
each said position thereof for selecting a repeat mode of operation; and :
means responsive to driving of said gear means for temporarily disengaging said latch means in a concluding ; portion of each period of driving of the gaar means following :
said portion thereof corresponding to the automatic lead-in movement of the tone arm so that, with said mode selecting member in the positio.n thereof for selecting the manual mode -of operation, said tone arm can then be manually lead-in from said rest :position.to a manually determined set-down position on the record. .
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There is also provided: .
In a phonograph record player having a rotatable :.
turntable for supporting a phonograph record during the playing . .
. .
' thereof, drive means for rotating said turntable, and a tone arm assembly including a tone arm carrying a pickup with a ~ .
stylus to track the groove of a phonograph record on said : .
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1~69~
turntable during a play operation and being rnounted for lead- -in movement of said tone arm from an elevated rest position outside the perimeter of said turntable to a selected set-down position of the stylus on a record supported by said turntable for commencement of a play operati.on and for return movement of said tone arm to said rest position upon the termination of a play operation: a control mechanism comprising gear means selectively driven by said drive means;
trip means actuable at will and upon completion of each play operation to cause a period of driving of said gear means by said drive means;
lever means driven by said gear means for urging said tone arm to automatically undergo said return movement and then said lead-in movement during respective portions of each said period of driving of said gear means;
latch means for preventing said lead-in movement of the tone arm under the urging of said lever means;
a mode selecting memher manually movable to positions for selecting stop, manual and repeat modes of operation r respectively, of the record player, said position of the mode selecting member for selecting the manual mode of operation being interposed between said positions for selecting the stop and repeat modes of operation, respectively; .
means for causing operation of said drive means when said mode selecting member is in any one of said positions : :
thereof for selecting the manual and repeat modes of operation, respectively; :
means for disengaging said latch means in response -to the disposition of said mode selecting member in each said position thereof for selecting a repeat mode of operation; :~
means for temporarily disengaging said latch means ~ -4b-'.
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in a concluding portion of each period of driving of the gear means following said portion thereof corresponding to the automatic lead-in movement of the tone arm so that, with said mode selecting member in the position thereof for selecting the manual mode of operation, said tone arm can then be manually lead-in from said rest position to a manually determined set-down position on the record;
and means responsive to each said period of driving of the gear means for effecting the step-wise movement of said mode selecting member in the direction toward said position thereof for the stop mode.
These and other objects and features of the .
present invention will be apparent from a reading of the ensuing part of the specification in conjunction with the accompanying drawings which indicate the embodiments of.the invention.
BRIEF DESCRIPTION OF THE DR~WINGS
Fig. 1 is a bottom view showing the outline of a record player according to the present invention:
Fig. 2 iS a perspective view of the essential part of the record player as viewed from the top side thereof;
Fig. 3 is a plan view showing the essential part ::.
of the record player shown in Fig. l;
Fig . 4 iS an enlarged plan view of part of the : ' ~'' '~" ' ' ' '', -4c- ;
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~ 6~
record player shown in ~ig~ l;
Fig. 5 is an enlarged, perspective view of part o~
the record pla~er shown in Fig. 3.
DESCRIP~ION O~ ~HE PREFERRED ~MBODIME~I~S
~ ig~ 1 is a bottom view of the outline of the essential part of designating means according to the present invention9 and Fig. 2 is a perspective view show-ing the essential part of the record pla~er o~ Fig. 1, as vîewed from the top side thereof. I~ Fig. ly a chassis mechanical portion mounted on a tur~ table is viewed from below. ;i Sho~n at 1 i~ a center gear which is rot~tabl~
mounted on -~ central portion of the chassis. ~he center gear 1 is ~ormed with a gear portio~ 2 in its flank portion and a projecting pawl 3 in its lower portion and integrally secured to a center shaft extending on the back side o~ a chassis. The center shaft mounts a turn table ~hereon~ ;
~he center gear 1 is rotatably smoothly supported by a bracket 4 anchored in the chassis. A supporting shaft 5 e~tends be~ree~ a tip portion o~ the bracke~ 4 and the chassis, while a flat drive gear 6 o~ a large diameter is rotatably supported on ~he supporting ~haft 5.
Attached to the undersurface of the drive gear 6 are a first trip 8 and second trip 9 which are rotatable about a pivot 7 independently of each other but in overlapping relation. ~he fir~t trip 8 is formed with a ., ' .-' ':
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~, pawl piece 10 at its one end~ and an acting piece 11 at the other. An end portion 8a of the operating piece 11 is bent and extends into an elongated hole 12 provided in the drive gear 6 so as to limit the range o~ rotation of the first trip 8. Meanwhile 9 the drive gear 6 is formed with a recessed portion 6a following a gear portio~
and l~ith a long pin 6b~ short pins 6c5 6d on the under-~urface of the drive gear 6. On the other hand~ the second trip portion 9 has an elongated portion which runs along the undersur~ace of the drive gear 6~ with its tip ~eing bent. ~he bent tip thus formed e~ter~ an elongated hole 13 in the drive gear 6, so as to limit the rotational stroke or range of the ~econd trip 9. Pro~ided on the top surface of the drive gear 6 is a cam groove 14 which is o~
defined b~ t~Jo built-up lines. Part o~ a bottom~the cam groove 1~ i5 deeper than that of the other portion~ and used for con~rolling the ascending and descending mo~e- -ments o~ an arm lifter to be described hereinafter~ ~ho~n at 15 i~ an operating rod for start-reject operation. ~hs operating rod 15 is supported by a bracket 16 upright on the chassis and formed with a manipulating portion 15a and an operating portion 15b. ~he operati~g portion 15b i~ -adap~ed to engage the acting piece 11 of the first trip 80 Shown at 17 i a pivot anchored in the chassis, ~Jhile a main lever 18 i~ secured on the pi~ot 17~ ~he main lever 18 i8 urged in the oou~terclackwise directio~b~ means of ' '` ' ~ ' ~
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a coil spring secured to the pivot 17 in a manner to urge one end 18a of the main lever 18 do~wards~
projec~ing piece 20 is formed on the undersurface of the end 18a so as to control the rotation of the main lever 18 and engages the cam groove 14. ~he other end 18b o~
he main lever 18 is formed with a projec~ing piece 219 iæ
while a given spacing/provided between the projecting piece 21 and an extension l9a of the coil sp~ing 19 a:~fixea to the main lever 18. Shown at 22 is a pivot integral with a horizontal pivot for a tone arm (no~ sho~m), and the pivot 22 is smoothly supported b~ a bearing mechanism of a kno~m t~pe, with a sector lever 23 secured theretQ. :~
In addition, a tone arm operating plate 24 is rotatably 1005ely fittea on the pivot 22 in ovërlapping relation to the sector lever 23. ~he tone arm operating plate 24 is of an elongated form adaptea to determine a drop poi~t of a stylus on to a disc~ An operat~ng pin2~ is anchored -~
in the vicinity of the pivot 22 and po~itioned in the afQresaid spacineO ~ositioned on the opposite ~ide of . ::
the opera~ing pin 25 with re~pect to the pivot 22 is a :.
~ine-adjusting cam 26 provided for fine adjustment o~ the aforesaid drop point~ ~he cam 26 i~ loosely fitted in . -the sector hole 27 provided in the sector le~er 23, there~g enabling the ~ine adjustment of a drop point with the aid :
of the seoond hole 27. Shown at 24a is a spring extending betw-en the s:~tor lever 23 nd the tone arm operating ' . '' ~
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z plate, and -the spring 24a ~rges the tone arm operating plate 24 so as to ro-tate in the counterclockwi~e direction all the times~ relative to the sector lever 23~
~ hown at 28 is a size determining lever which is rotatable about the pivot 17. The size determining lever 28 is operated so as to de-termine the a~oresaid drop p~
depending on the size o~ a ~isc, and formed with a cam through-hole 29 and a cam piece 30 at its one endO ~he cam hole 29 îs formed with two cam portions 29a~ 29b~
while the cam pièce 30 is formed with t~Jo cam portions 30a, 30b, respectively. The other por~ion of the lever 28 extends in concentric relation to the drive gear 6 Sho~m at ~1 is a size selector rod which move~ up and down b~ a record disc mounted on a turn table, and engages the cam portions 29a~ 29b7 being operated ~rom the back side of a chassis. The ~election o~ the position of the size selector rod 31 determines the rotational stroke or range o~ the size determining lever 28. Sho~ at 32 is a spring which urges the~size determining lever 28 so a~ to rota~e ~ -in the clock~ise direction Sho~m at 33 is a 'Y~ shaped repeat feed lever which is rotatably suppor-ted b~ a pivot 17, and one end of one piece 33a of the lever 33 projects in the direction towards the supporting shaft 5~ ~he piece 33a is formed with a parallel cam portion 34~ a 'V~ shaped cam portion and a guide cam por-tion 36 which are continuous with each other.
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Secured tp other piece 33b o~ the lever 33 i8 a repeat feed piece 38 which is loaded by a ,~prin~ ~7 ~o a~ to rotate~~ ~ projecting pin 39 an~hored in the ~eed piece 39 downwards is so guided ~y a throug~ hole provided in ~he chassis as to operate the repeat feed plate to be described hereinafter. Showm at 40 is a ~pring which urges ~he repeat ~eed lever 33 so as to rota~e i~ ~he counterclockwise direction.
A~ shown particularly on Figs. 1, 2, 3 and 4, tha 10 record player according to this inventio~ further includes a latch lever 44 pivotally mounted intermediate its ends on a pivot pin 43 depending from chassis under slide 75 and :
having an inwardly directed arm terminating in ~ latching nose or ~ook 44b that is engageable with lug 24b on operating arm 24 for locking the latter in the position thereof corres-ponding to the rest position of tone arm 60. The oppositely directed or outer arm of latch lever 44 is acted upon by a spring 42 anchored to chassis for urging latch lever 44 in the cloc~wise direction as viewed on ~igs. 2 and 4, t~at is, in the direction for engaging latching hook or nose 44b with lug 24b. Latch lever 44 is further shown to include a rearwardly dirPcted arm 44c which, at its free end carries an upstanding pin 46 extending through a slot in chassis 11 so as to be engageable against the outer longitudi~al edge of slide 75. Latch lever 44 is further shown to have a forwardly directed extension 44b of its arm, and such . :
extension 44b has an oblique end edge extending across the path of movement of the lower end of pin 41 on r.~peat feed lever 33 (Fig~
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provide a record player which allows ~he eas;sr set-ting of repeat reproduction.
It is a still further object of the present invention to provide a record player, in which a ma~ual reproducing position is provided between a repeat cycle setting position and an operation-stopping position~ thus facilitating ~he operation.
It is a ~et further object of the present invention to provide a record player which is provided with means for -temporarily locking a tone arm, when the final repeat cycle has been terminated7 so as to prevent further reproduction and hence mal-f~unctioning of the record player.
It is a further object of the present invention to provide a record pla~er which is provided with a repeat-cycle designating lever~ and an operating mem~er for operating the designating lever per repeat cycle~ while the operating lever engages the repeat designating lever - -only for a given period oP time~ so that the repeat designating lever ma~ be free to move slidingly.
It is a further object of the present invention to provide a record player, in which a feed member that is urged in one direction under the action of a spring is seoured to a repeat feed lever reciprocable in response to one cycle of rotatio~ o~ a drive gear driven in association with the rotation of a turn table, while the aforesaid feed membèr is so designed as to engage a saw ', ' ' .. ~ ' .:, ' . ~... ..
... . .... . . ............. . . . . . . .
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~944Z ~
tooth ca~ of a ~epeat feed plate which stores a repeat cycle commensurate with an extent o~ its displacement, before the completion of one cycle of rotation of the drive gear, thereby causing a giyen extent of displacement of the saw tooth cam, with the result that the number of parts may be reduced and the count-down of a repeat memory may be readily accomplished by an arbitrary operation of a single mode-shifting rod.
It is a further object of the present invention to provide a record player~ in which a drive gear is forcibly locked, thereby preventing the mal-functioning of the player during the reproduction of a record disc~ and insuring positive repeat reproduction.
In accordance with the foregoing objects, there is provided:-In a phonograph record player having a rotatable turntable for supporting a phonograph record during the playing thereof, drive means for rotating said turntable, and a tone arm assembly including a tone arm carrying a pickup with a stylus to track the groove of a phonograph record on said turntable during a play operation and being mounted for lead-in movement of said tone arm from an elevated rest position outside the perimeter of said turntable to a selected set-down position of the stylus on a record supported by said turntable for commencement of a play operation and for return movement o said tone arm to said rest position upon the termination of a play operation: a control mechanism comprising gear means selectively driven by said drive means;
trip means actuable at will and upon completion of each play operation to cause a period of driving of said :
gear means by said drive means; :
lever means driven by said gear means for urging ~ -4-~ .
~''' ~ . .
-- , . . . -- , , -- , -- . . -- . , , said tone arm to automatically undergo said return movement and then said lead-in movement during respective portions of each period of driving of said gear means;
latch means for preventing said lead-in movement of the tone arm under the urging of said lever means;
a mode selecting member manually movable to positions for selecting stop, manual and repeat modes of ~
operation, respectively, of the record player;
means for causing operation of said drive means when said mode selecting member is in any one of said positions thereof for selecting the manual and repeat modes of operation, : :
respectively; .
means for disengaging said latch means in response to the disposition of said mode selecting member in . .
each said position thereof for selecting a repeat mode of operation; and :
means responsive to driving of said gear means for temporarily disengaging said latch means in a concluding ; portion of each period of driving of the gaar means following :
said portion thereof corresponding to the automatic lead-in movement of the tone arm so that, with said mode selecting member in the positio.n thereof for selecting the manual mode -of operation, said tone arm can then be manually lead-in from said rest :position.to a manually determined set-down position on the record. .
- :
There is also provided: .
In a phonograph record player having a rotatable :.
turntable for supporting a phonograph record during the playing . .
. .
' thereof, drive means for rotating said turntable, and a tone arm assembly including a tone arm carrying a pickup with a ~ .
stylus to track the groove of a phonograph record on said : .
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., . - ~ , , . . ., ~, :
1~69~
turntable during a play operation and being rnounted for lead- -in movement of said tone arm from an elevated rest position outside the perimeter of said turntable to a selected set-down position of the stylus on a record supported by said turntable for commencement of a play operati.on and for return movement of said tone arm to said rest position upon the termination of a play operation: a control mechanism comprising gear means selectively driven by said drive means;
trip means actuable at will and upon completion of each play operation to cause a period of driving of said gear means by said drive means;
lever means driven by said gear means for urging said tone arm to automatically undergo said return movement and then said lead-in movement during respective portions of each said period of driving of said gear means;
latch means for preventing said lead-in movement of the tone arm under the urging of said lever means;
a mode selecting memher manually movable to positions for selecting stop, manual and repeat modes of operation r respectively, of the record player, said position of the mode selecting member for selecting the manual mode of operation being interposed between said positions for selecting the stop and repeat modes of operation, respectively; .
means for causing operation of said drive means when said mode selecting member is in any one of said positions : :
thereof for selecting the manual and repeat modes of operation, respectively; :
means for disengaging said latch means in response -to the disposition of said mode selecting member in each said position thereof for selecting a repeat mode of operation; :~
means for temporarily disengaging said latch means ~ -4b-'.
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in a concluding portion of each period of driving of the gear means following said portion thereof corresponding to the automatic lead-in movement of the tone arm so that, with said mode selecting member in the position thereof for selecting the manual mode of operation, said tone arm can then be manually lead-in from said rest position to a manually determined set-down position on the record;
and means responsive to each said period of driving of the gear means for effecting the step-wise movement of said mode selecting member in the direction toward said position thereof for the stop mode.
These and other objects and features of the .
present invention will be apparent from a reading of the ensuing part of the specification in conjunction with the accompanying drawings which indicate the embodiments of.the invention.
BRIEF DESCRIPTION OF THE DR~WINGS
Fig. 1 is a bottom view showing the outline of a record player according to the present invention:
Fig. 2 iS a perspective view of the essential part of the record player as viewed from the top side thereof;
Fig. 3 is a plan view showing the essential part ::.
of the record player shown in Fig. l;
Fig . 4 iS an enlarged plan view of part of the : ' ~'' '~" ' ' ' '', -4c- ;
' ~
- . : : .. . .
~ 6~
record player shown in ~ig~ l;
Fig. 5 is an enlarged, perspective view of part o~
the record pla~er shown in Fig. 3.
DESCRIP~ION O~ ~HE PREFERRED ~MBODIME~I~S
~ ig~ 1 is a bottom view of the outline of the essential part of designating means according to the present invention9 and Fig. 2 is a perspective view show-ing the essential part of the record pla~er o~ Fig. 1, as vîewed from the top side thereof. I~ Fig. ly a chassis mechanical portion mounted on a tur~ table is viewed from below. ;i Sho~n at 1 i~ a center gear which is rot~tabl~
mounted on -~ central portion of the chassis. ~he center gear 1 is ~ormed with a gear portio~ 2 in its flank portion and a projecting pawl 3 in its lower portion and integrally secured to a center shaft extending on the back side o~ a chassis. The center shaft mounts a turn table ~hereon~ ;
~he center gear 1 is rotatably smoothly supported by a bracket 4 anchored in the chassis. A supporting shaft 5 e~tends be~ree~ a tip portion o~ the bracke~ 4 and the chassis, while a flat drive gear 6 o~ a large diameter is rotatably supported on ~he supporting ~haft 5.
Attached to the undersurface of the drive gear 6 are a first trip 8 and second trip 9 which are rotatable about a pivot 7 independently of each other but in overlapping relation. ~he fir~t trip 8 is formed with a ., ' .-' ':
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~, pawl piece 10 at its one end~ and an acting piece 11 at the other. An end portion 8a of the operating piece 11 is bent and extends into an elongated hole 12 provided in the drive gear 6 so as to limit the range o~ rotation of the first trip 8. Meanwhile 9 the drive gear 6 is formed with a recessed portion 6a following a gear portio~
and l~ith a long pin 6b~ short pins 6c5 6d on the under-~urface of the drive gear 6. On the other hand~ the second trip portion 9 has an elongated portion which runs along the undersur~ace of the drive gear 6~ with its tip ~eing bent. ~he bent tip thus formed e~ter~ an elongated hole 13 in the drive gear 6, so as to limit the rotational stroke or range of the ~econd trip 9. Pro~ided on the top surface of the drive gear 6 is a cam groove 14 which is o~
defined b~ t~Jo built-up lines. Part o~ a bottom~the cam groove 1~ i5 deeper than that of the other portion~ and used for con~rolling the ascending and descending mo~e- -ments o~ an arm lifter to be described hereinafter~ ~ho~n at 15 i~ an operating rod for start-reject operation. ~hs operating rod 15 is supported by a bracket 16 upright on the chassis and formed with a manipulating portion 15a and an operating portion 15b. ~he operati~g portion 15b i~ -adap~ed to engage the acting piece 11 of the first trip 80 Shown at 17 i a pivot anchored in the chassis, ~Jhile a main lever 18 i~ secured on the pi~ot 17~ ~he main lever 18 i8 urged in the oou~terclackwise directio~b~ means of ' '` ' ~ ' ~
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a coil spring secured to the pivot 17 in a manner to urge one end 18a of the main lever 18 do~wards~
projec~ing piece 20 is formed on the undersurface of the end 18a so as to control the rotation of the main lever 18 and engages the cam groove 14. ~he other end 18b o~
he main lever 18 is formed with a projec~ing piece 219 iæ
while a given spacing/provided between the projecting piece 21 and an extension l9a of the coil sp~ing 19 a:~fixea to the main lever 18. Shown at 22 is a pivot integral with a horizontal pivot for a tone arm (no~ sho~m), and the pivot 22 is smoothly supported b~ a bearing mechanism of a kno~m t~pe, with a sector lever 23 secured theretQ. :~
In addition, a tone arm operating plate 24 is rotatably 1005ely fittea on the pivot 22 in ovërlapping relation to the sector lever 23. ~he tone arm operating plate 24 is of an elongated form adaptea to determine a drop poi~t of a stylus on to a disc~ An operat~ng pin2~ is anchored -~
in the vicinity of the pivot 22 and po~itioned in the afQresaid spacineO ~ositioned on the opposite ~ide of . ::
the opera~ing pin 25 with re~pect to the pivot 22 is a :.
~ine-adjusting cam 26 provided for fine adjustment o~ the aforesaid drop point~ ~he cam 26 i~ loosely fitted in . -the sector hole 27 provided in the sector le~er 23, there~g enabling the ~ine adjustment of a drop point with the aid :
of the seoond hole 27. Shown at 24a is a spring extending betw-en the s:~tor lever 23 nd the tone arm operating ' . '' ~
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z plate, and -the spring 24a ~rges the tone arm operating plate 24 so as to ro-tate in the counterclockwi~e direction all the times~ relative to the sector lever 23~
~ hown at 28 is a size determining lever which is rotatable about the pivot 17. The size determining lever 28 is operated so as to de-termine the a~oresaid drop p~
depending on the size o~ a ~isc, and formed with a cam through-hole 29 and a cam piece 30 at its one endO ~he cam hole 29 îs formed with two cam portions 29a~ 29b~
while the cam pièce 30 is formed with t~Jo cam portions 30a, 30b, respectively. The other por~ion of the lever 28 extends in concentric relation to the drive gear 6 Sho~m at ~1 is a size selector rod which move~ up and down b~ a record disc mounted on a turn table, and engages the cam portions 29a~ 29b7 being operated ~rom the back side of a chassis. The ~election o~ the position of the size selector rod 31 determines the rotational stroke or range o~ the size determining lever 28. Sho~ at 32 is a spring which urges the~size determining lever 28 so a~ to rota~e ~ -in the clock~ise direction Sho~m at 33 is a 'Y~ shaped repeat feed lever which is rotatably suppor-ted b~ a pivot 17, and one end of one piece 33a of the lever 33 projects in the direction towards the supporting shaft 5~ ~he piece 33a is formed with a parallel cam portion 34~ a 'V~ shaped cam portion and a guide cam por-tion 36 which are continuous with each other.
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Secured tp other piece 33b o~ the lever 33 i8 a repeat feed piece 38 which is loaded by a ,~prin~ ~7 ~o a~ to rotate~~ ~ projecting pin 39 an~hored in the ~eed piece 39 downwards is so guided ~y a throug~ hole provided in ~he chassis as to operate the repeat feed plate to be described hereinafter. Showm at 40 is a ~pring which urges ~he repeat ~eed lever 33 so as to rota~e i~ ~he counterclockwise direction.
A~ shown particularly on Figs. 1, 2, 3 and 4, tha 10 record player according to this inventio~ further includes a latch lever 44 pivotally mounted intermediate its ends on a pivot pin 43 depending from chassis under slide 75 and :
having an inwardly directed arm terminating in ~ latching nose or ~ook 44b that is engageable with lug 24b on operating arm 24 for locking the latter in the position thereof corres-ponding to the rest position of tone arm 60. The oppositely directed or outer arm of latch lever 44 is acted upon by a spring 42 anchored to chassis for urging latch lever 44 in the cloc~wise direction as viewed on ~igs. 2 and 4, t~at is, in the direction for engaging latching hook or nose 44b with lug 24b. Latch lever 44 is further shown to include a rearwardly dirPcted arm 44c which, at its free end carries an upstanding pin 46 extending through a slot in chassis 11 so as to be engageable against the outer longitudi~al edge of slide 75. Latch lever 44 is further shown to have a forwardly directed extension 44b of its arm, and such . :
extension 44b has an oblique end edge extending across the path of movement of the lower end of pin 41 on r.~peat feed lever 33 (Fig~
3~ As shown particularly on Figs~ 1 and 3, the outer edge of slide 75 ha~ a xecess aisposed therealong to receive ~ ,.
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pin 46 when slide 75 i5 in its rearmost or stop mode position and al50 when slide 75 is in its next forward or manual mode position. So long as pin 46 is accommodated in recess of slide 75, spring 42 is free to turn latch lever 44 in the clockwise direction, as viewed on Fig. 4, for disposing its latching nose 24b at the position Kl where it is engageable with lug 24b on operating arm 24. However, when slide 76 is displaced forwardly to any of its one, two, three or indefinite repeat mode positions, pin 46 is engaged by an outer edge portion of slide 75 to the rear of recess 84, and such edge portion 83 displaces pin 4~ in the outward direction so as to turn latch lever 44 in the counter-clockwise direction, as viewed on Fig. 4, for example, to the position indicated at K3, in which latching noss 44b is held away from lug 24b on operating arm 24 ~o as to avoid any interference with the movements of the latter.
&o~n at 47 is an operating switch plate which is rotatably ~upported on the pi~ot 17, ~hile a ~pring 47a : extends between the repeat feed lever 33 and the operating switch plate 47~ thereb~ urging t e operating switch plate 47 so as to rotate in the counterclock~lise direction relative to th~ repeat feed lever 33. Shown at 48 is a switch secured to the operating s~Jitch plate ~7~ while an operating element 48a thereo~ is covered wi~h a~ operating : pla~e 48~. A pin 33c anchored in the repeat feed lever 33~ as well as a switch-op-ra~irg rod uprigbt ~r a lifter , , ~
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-9a- :
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~"' plate to be d~scribed are adapted to en~age the operating plate 48b, Shown at 49 is a speed change-over switch~
and at 50 a drive motor,/at 51 a lifter shaft of a hydraulic t~pe "~hich is adapted to engage the undersurface of the main lever 18, The Iifter shaft 51 is urged upward~ under the action of a spring ~o as to contact the undersurface of the main lever 18 all the times.
Fig. ~ is a plan vie~l o~ the record player of Fig, 1, as viewed from the top side thereo~. A turn table for a player is sho~ on i-ts top side. Shown at 52 is a center sha~t inte~ral with the center gear 1, and a turn table 5~ is supported b~ the center shaft 52 in a well ~lo~
manner, Shown at 54 is a drive sha~t,for the drive motor 50~ while a rubber belt 56 is trained around the drive shaft 54 and a circular pulley 55 o~ the turn table 53?
so that the turn table 53 ma~ be rotated at a given rpm, Sho~n at 57 is a size selector ha~ing the a~oresaid size selector xod 31, ~he selecbor 57 deteots the s;ze (LP or EP) of a disc mounted on the turn table 55 and i5 rotated ~ the pivot 58 to right and left, so a~ to define the rotational stroke or range of the size selector rod 31 for controlling the size determining lever. Sho~m at 59 is a horizontal shaft which i9 continuous with the pivot 22 provided ~or a tone arm 60~ Brackets 60, 61 are supported b~ the horizontal shaft 59, and the tone arm 60 is supported rotatably in ~he ~ertiGal direction ~hrough ..:
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the medium o:E a supportîng plate 63 by means of the pivot 62 secured to the bracket~ 61. Meanwhile~ secured to the tip of the tone arm 60 are a cartridge shell 64 and a car$ridge 65. Sho~n at 66 is a~ arm res-t plate having an arm rest 6~, at 67 is through hole provided in the chassis and adapted to guide the projecting pin 39~ at 69 a lifter plate which directly supports the tone arm 60 9 with -the end portion o~ the li~ter plate 69 secured ) to the liftqr shaft ~1. As shown in Fig. 5, a cam pla$e 70 having a flat projectin~ under~urface is secured to the fla~ of the lifter shaft 51. A guide cam 72 has a through- !
hole 71~ through ~Jhich extends the lifter shaft 51, and a built-up cam por.tion whose height is increased along the throu~h-hole 71. ~he guide cam 72 ~uppor~s a cam plate 70. Shown at 73 is a s~itch operating rod upright on $he guide cam 72 9 a~d at 74 a spring which urges th~ guide cam 72 so as to rotate about a pivot 72a in the cloc~ise ~irec~ion.
-~ Shown a~ 75 is a repeat feed plate which moves back and forth on the cha~sis~ Guide groo~es 76 and 77 provided therein are guided by mea~s o~ guide member~
78 and 79 secured to the chassis. Provided along the le~t-hand edge o~.the repea~ feed plate 75 are a saw-too~h cam portion 80, a parallel cam portion 81 continuou~
there~Jith, and a sliding positi~n stabi-lizing cam portion 82 co~tinuou~ with the parallel cam portion 81. A steel :
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ball (not sho~m) which is elastically loaded by a spring holds the groove portion in the sliding-position-stabilizin$ cam portion, so as to set the feeding position of the repeat, ~eed plate 75 properl~, while the pin 39 is adapted -to engage the saw tooth cam portion 80. Provided on the right~hand edge of -the repeat feed plate 75 .i-~ are a para~lel cam portion 83 and a recessed cam por-tion 84 .
conti~uous with the cam portion 83, while a projec-~ing pi~
46 (Fig. 1) projecting from the root piece 44c of the arm stopper 44 is adapted to slidingl~ contact the cam portions 83 and 84. In addition,~ secured to the rear end of the repeat feed p~ate 75 is a hook member 75a, which is adapted to engage a pin 72c on the guide cam 72 so as to hook on the guide cam 72 for returning same to a ~iven position.
Shc~nn at 85 is an operating rod for the speed change-over swîtch 49.
In operation~ as sho~m in ~ig. 2~ when the repeat feed plate 75 is pushed to its rearmost portion9 a power ~ :~
source is turned off and the lifter plate ~9 assumes an ~up~ mode. I~en the repeat feed plate 75 i~ pulled onè
step forward, then a po~er source is turned on and the ..
lifter plate 69 a~sumes a Idol~nl mode a~d a ma~ual mode. :
l~hen the repeat feed pIate 75 is pulled second, third, -- four~h steps forwaras, then there may be achieved an auto repeat mode a~d a repeat cycle designating mode. In this respect~ when the repeat feed plate 75 is put i~to an auto :
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repeat mode, then the guide cam 72 rotates in the clock- ' wise direction about the pivot 72a under the action of-~he spring 74, ~lith ~he result that the sl~itch operating rod 73 pushes the operating plate 48b of the swi~ch 48 so as to bring the switch 48 (~ig. 53 to its closed position~
~hen, electric power is supplied to the motor 50 so as to drive same, so that a rotational force is tr~nsmitted through the medium of the drive shaft 54 and belt 56 to the turn table 5~ so as to rotate same. A reproducing speed o~ a disc is selected b~ operating the operating rod 85, after ~hich the operating rod 15 provided for start-reject nperation is operated so as to rotate the operating portion 15b~ with the result that the acting piece 11 o~ the first trip ma~ be rotated about the pivot 7 in the cloc~ise direction~ as viewed in Fig. 1. At this time 7 the pawl piece 10 engages the proJecting pa~l -' 3 provided on the lower portion of the center gear 1, and '~
the center gear 1 is being rotated through the medium of the turn table 53 ~hich is being driven b~ the motor 50~ , ~o that the projecting pawl 3 pushes the pawl piece 10.
A~ a result, a recessed portion 6a in the drive gear 6 having the first trip is rotated in the clock~ise direction, a~ viewed in ~ig. 1~ so the gear continuous with the recessed po~tion 6a meshe~ with the center gear,l so as to be rotate~. In addition~ the rotation of the d~ive gear 6 causes ~,he,elongatad pin 6b engaging the tVI shaped cam .) , ' :. . ''' - 13 - , ,,;
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portion 35 of the repeat feed lever 33 to be disengaged from the ~V~ shaped cam portion 35~ so that the repeat feed lever ~3 i5 rotated about the pivot 17 in the clock-wise direction. ~owever, as the repeat feed lever 33 goes towards the guide cam portion 36 after the afor~said disengagement, the repeat feed lever 33 i~ rotated in the countercloc~Ji~e clirection through a large angle, a~ter which the short pins 6c~ 6d on the undersurface of the \ drive gear 6 are guided along the arcuate edge of the size de~ermining lever 28. On the other hand? the rotation of the drive gear 6 ca~ses the projecting element 20 to ; :
be guided along the cam groove 14. ~ig. 1 is illustrative o~ the auto-mechanism-stopping co~dition~ in which the projecting element- 20 is guided by a deep bottom portion of the cam groove 14. As a result? the lif-ter shaft 51 engaging the other end 18b of the main lever 18 is moved ~:
upwards in Fig~ 1, so that ~he lifter plate 69 positioned o~ the back side thereof remains in its lo~Jered position~ :
- - As -the drive gear 6 rotates~ the dep~h o~ the cam groove 14 becomes }ess, so the projecting element 20 i~ lifted so as to.raise the one end 18a of the main lever 18. It :.
follows.that the lifter shaft 51 is pushed downwards in ~ig. 1, and the lifter plate 69 gradually ~oves up~ard~
as sho~m in ~igr 3 Accordingly~ the tone arm 60 mount-ed .. ;~
o~ th.e lifter plate 69 is liftéd. Then, the projecting piece 21 on the main lever 18 contacts the operating pin ';
' '. :', 25 on the tone arm operating plate 24, so that the tone arm 60 is pushed back through the medium of the tone arm operating plate 24 and sector lever 23. ~he tone arm operating plate 24 cooperates with the sector lever 23 with the aid of the spring 24a, so that even in the event of the over-stroke of the tone arm operating plate 24, the tone arm GO may be moved sa~ely and positively.
~ he subsequent rotation of the drive gear 6 causes the projecting element 20 to reach a turn-over portion 14a of the cam groove 14, so that the rotation of the main lever 18 is reversed9 i.e~, the main lever 18 is rotated in the cloc~ise direction, and then the extension l9a of the coil spring 19 contacts the pin 25~ therebJ rotat~
ing the tOnQ arm operating plate 24 in the coun~erclocl~ise direction, i.e~ 9 rotating the tone arm 60 in the lead-in direct;on. Immediatel~ before the lead-in operation o~
the tone arm 60, the size determining lever 28 whose move-me~t has been limited by means of the long pin 6b, short pins 6c, 6d rotates in the clockwise direction under the action of the spring 32. In this respect~ the rotational stroke of the tone arm 60 is arbitraril~ determined b~
rotatin~ the selector suitably, so that the size selector rod 31 may engage either one of the cam portions 29a and 29b~ I~ other words9 this en~agi~g pos}tion of the size selector r~d 31 with the cam portion 29a or 29b serves a3 a reference point for the drop point of a stylus on ~'' ' . ' .- , ' .
~ ~ ~9 ~ ~2 the ~P or EP disc. The tone arm operating plat~ 24 is protected from an unwanted stress accruing from an over-stroke by means of the spring 19 provided for the main lever 18. In this manner, the lead-in operation of the tone arm ~0 i.~ completed. ~hereafter, the size determin-ing lever 28 is returned to its given position by mean~
of the short pin 6d.~ and then the long pin 6b on the drive gear 6 pushes the parallel ca~ por~ion 34 provided on the ) side of one piece 33a of the repea-t feed le~er 33, llhereby the repeat ~eed lever ~3 is rotated about -the pivot 17 in ~ .
the cloc~ise directionl. As a result ? the projecting pin 39 on a feeding piece which is r~tatably mounted on the sida of other piece 33b pushes the saw -tooth cam portion 80 of the repeat feed plate 75 one pitch forwards? thereby moving the repeat feed plate 75 rearwardl~. In other ords, the cycle of a repeat memory is counted do~m. At ~.
this time, the pro3ecting element 20 on the main lever I8 .~ ~ .
enters a deep bottom portion of the cam ~roove 14 to lower , the lifter plate for descending the tone arm 60. At this . .
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time, the drive gear 6 complete its one c~cle of rotation, ~
and the recessed portio~ 6a thereof engages the center gear 1, thereby stopping its rotation. ~hus~ th~ turn table 53 alone rotates so as to con~inue playing. ~ -When the play is about to end and then the stylus runs aut of the fi~al sound groove~ the tip portion 24c .
of the arm operatin~ plate 24 pushes the tip 9a of the .. ...
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~1~ 6~ ~ ~2 second trip 9 for~lards, thereby urging the first -trip 8 so as to rotate in the countercloc~1ise direction~ so that the drive gear 6 ma~ be rotated again. As a result, the main lever 18 is rotated in the countercloc~lise direction as viewed in Fig. 3~ and the projecting piece 21 pushes the operating pin 25 provided on the arm operatin~ plate 24~ so that the arm operating plate is rotated in the c~ocln~ise direction, and hence the tone arm 6Q is guided onto the arm rest 68. H~ever, slnce the drive ~ear 6 continues rotating, the tone arm is ~lead-in~ driven by means of the main lever 18 again, thus entering the second playing condition~
Meam~hile, the repeat feed plate 75 will not be :~
moved ~~n~ a ~ode of power-source-o~f-and-lifter-plate-up and a mode of in~inite auto-repea~? because of the through-hole 67 and because a long parallel cam portion 81 is providea in the front portion of the saw tooth cam ~-80, while ~he parallel cam portion 86 having the same height as ~hat of the apexes of the saw teeth of the cam 80 and free of a saw tooth portion is provided in the rear portion of the saw teeth cam 80.
~ hus9 the user may select a desired auto-repeat cycle~- because the repeat feed plate 75 may be moved to indicate an au~o-repeat cycle on a panel.
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With the aforesaid arrangement, wherein the re~pectîve mechanisms of t~e repeat memory mag be counted do~m, after ..
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the repea-t feed pla-te 75 has been shifted from one cycle of auto repeat mode to a manual mode t the projectirlg pin 46 on the arm stopper 44 is guided by the cam portion 84, so the arm stopper 44 maintains its position, to which the stopper 44 has been rotated in the clockwise direction in Fig. 3. Thus, after -the reproduction of the final sovnd groove in a disc~ as ha~ been described earlier~
the projec~ing piece 2 on the arm operating plate 24 adapted to effect the lead-out operatîon engages the hook portion 45 7 SO that the ~ovement of the arm operating plate 24 in the lead-in direction is lockedO Accol~dingly~ depite the rotation of the ~rive gear 6, the arm operating plate ~
not be operated in the leaa-in direction. ~owever, the continuing rotatio~ of the drive gear 6 causes the arm perating plate 24 to be shif-ted to a power-source-off same mode. ~t the/time? due to ~he engagement of the long pin 6b ~ith the 'V' shaped cam groove ~5 in the repeat feed lever 339 the projecting pin 41 on the repeat feed lever .
33 again en~ages the edge of one piece 44a of the arm stopper 41~ thereb~ rotating the arm stopper ~ in the countercloc~ise direction, so that the projecting piece .
24b is c~isengaged from the hook portion 45. Accordinglys i~ the user desires a manual lead-in operation~ then the tone arm 60 ma~ be brought into a lead-in operation b~
the user.
an the other hand9 in case the user does not pu~
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th~ tone arm 60 into the lead-in operation, the rotation of the drive gear 6 cau~es the long pin 6b to push the cam 34 of one piece 33a of the repeat feed lever ~3q there-by rotating the lever 33 in the clock~Jise direction~ In addition, the projecting pin 39 pushes the feed plate 75, so the ~eed plate is returned to it8 stop position. In this case9 the cam 72 is returned to its initial position by means of the ~eed plate 75~ and the pro~ecting piece 73 is detached ~rom the switch 48 so as to turn the switch o~f,for stopping the player~ ~he long pin 6b engages the .
cam 35 to lock the drive gear 6~ l~en the repeat feed plate 75 is shi~ted to a manual mode ~or a po~rer-source-of~ mode), with the tone arm 60 placed on the arm res-t 69, then the projecting pin 46 on the arm ~topper 44 is guided b~ means of the cam portion 84, so that the arm stopper 44 is rotated about the pivot 43 in ~he clockwise direction, and hence the hook portion 45 engages the upright piece 24b. Accordin~ly, even in case the operating rod 15 provided ) ~or the start-reaect operation is operated in the ~anual mode so as to drive the drive gear 6 a~ ha~ been described earlier~ the main lever to be rotated by the cam groove ab~orbs the variation in cam by mean~ of the spring 199 ~o.that ~he hook portion 45 limit~ the rotation o~ -the uprigh-t piece 24b. Accordingly, when operated manually, even i~ ~he operating rod 15 provided for start-reject operation is operated~ the tone arm will not be put into g _ .
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~069~9L2 a lead-in operation.
Re~erring to ~ig. 4 Bho~Jing the essential part in a plan view, in case the repeat feed plate 75 is shifted up ~o an index of~auto-repeat cl.J, to~i.nfi~ite cycle ~sho~n in mode indexes in ~ig. 1), the hook portion 45 of ~he arm stopper 44 is brought to a position K39 being kep~ awa~ from the upright piece 24b and thus free to move.
Subsequently~ when the repeat feed ~plate 75 is shifted to the power-source-off o~on mode (or a manual mode~, the hoo~ portion 45 moves `towards Kl~ In this respect, ~1hen the drive gear 6 is in its given position rather than an ` :
the aut~-repeat position, then/projecting pin 41 on the repeat : .
~eed lever 33 remains in a position C2, the movement of . :
the arm stopper L~4 iS limited in ~he position C2, the ~ .
en~ of one piece 44a remains in a position K"~and the arm operating plate 24 is free to move~ Meanwhile~ after the starting b~ the auto-repeat operation, the projecting pin 0:11 ' ' 41/t~e repeat feed lever 75 remains in the position Cl~
so that the ~rm stoppe~ L~4 iS positioned in the posi~-ions ~tl and Kl. In the position Kl; the uprigh~ piece 24b on ~he arm operating plate 24 is returned to assume a 'rest-in' position9 but prevented from a lead-in operationO
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pin 46 when slide 75 i5 in its rearmost or stop mode position and al50 when slide 75 is in its next forward or manual mode position. So long as pin 46 is accommodated in recess of slide 75, spring 42 is free to turn latch lever 44 in the clockwise direction, as viewed on Fig. 4, for disposing its latching nose 24b at the position Kl where it is engageable with lug 24b on operating arm 24. However, when slide 76 is displaced forwardly to any of its one, two, three or indefinite repeat mode positions, pin 46 is engaged by an outer edge portion of slide 75 to the rear of recess 84, and such edge portion 83 displaces pin 4~ in the outward direction so as to turn latch lever 44 in the counter-clockwise direction, as viewed on Fig. 4, for example, to the position indicated at K3, in which latching noss 44b is held away from lug 24b on operating arm 24 ~o as to avoid any interference with the movements of the latter.
&o~n at 47 is an operating switch plate which is rotatably ~upported on the pi~ot 17, ~hile a ~pring 47a : extends between the repeat feed lever 33 and the operating switch plate 47~ thereb~ urging t e operating switch plate 47 so as to rotate in the counterclock~lise direction relative to th~ repeat feed lever 33. Shown at 48 is a switch secured to the operating s~Jitch plate ~7~ while an operating element 48a thereo~ is covered wi~h a~ operating : pla~e 48~. A pin 33c anchored in the repeat feed lever 33~ as well as a switch-op-ra~irg rod uprigbt ~r a lifter , , ~
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~"' plate to be d~scribed are adapted to en~age the operating plate 48b, Shown at 49 is a speed change-over switch~
and at 50 a drive motor,/at 51 a lifter shaft of a hydraulic t~pe "~hich is adapted to engage the undersurface of the main lever 18, The Iifter shaft 51 is urged upward~ under the action of a spring ~o as to contact the undersurface of the main lever 18 all the times.
Fig. ~ is a plan vie~l o~ the record player of Fig, 1, as viewed from the top side thereo~. A turn table for a player is sho~ on i-ts top side. Shown at 52 is a center sha~t inte~ral with the center gear 1, and a turn table 5~ is supported b~ the center shaft 52 in a well ~lo~
manner, Shown at 54 is a drive sha~t,for the drive motor 50~ while a rubber belt 56 is trained around the drive shaft 54 and a circular pulley 55 o~ the turn table 53?
so that the turn table 53 ma~ be rotated at a given rpm, Sho~n at 57 is a size selector ha~ing the a~oresaid size selector xod 31, ~he selecbor 57 deteots the s;ze (LP or EP) of a disc mounted on the turn table 55 and i5 rotated ~ the pivot 58 to right and left, so a~ to define the rotational stroke or range of the size selector rod 31 for controlling the size determining lever. Sho~m at 59 is a horizontal shaft which i9 continuous with the pivot 22 provided ~or a tone arm 60~ Brackets 60, 61 are supported b~ the horizontal shaft 59, and the tone arm 60 is supported rotatably in ~he ~ertiGal direction ~hrough ..:
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the medium o:E a supportîng plate 63 by means of the pivot 62 secured to the bracket~ 61. Meanwhile~ secured to the tip of the tone arm 60 are a cartridge shell 64 and a car$ridge 65. Sho~n at 66 is a~ arm res-t plate having an arm rest 6~, at 67 is through hole provided in the chassis and adapted to guide the projecting pin 39~ at 69 a lifter plate which directly supports the tone arm 60 9 with -the end portion o~ the li~ter plate 69 secured ) to the liftqr shaft ~1. As shown in Fig. 5, a cam pla$e 70 having a flat projectin~ under~urface is secured to the fla~ of the lifter shaft 51. A guide cam 72 has a through- !
hole 71~ through ~Jhich extends the lifter shaft 51, and a built-up cam por.tion whose height is increased along the throu~h-hole 71. ~he guide cam 72 ~uppor~s a cam plate 70. Shown at 73 is a s~itch operating rod upright on $he guide cam 72 9 a~d at 74 a spring which urges th~ guide cam 72 so as to rotate about a pivot 72a in the cloc~ise ~irec~ion.
-~ Shown a~ 75 is a repeat feed plate which moves back and forth on the cha~sis~ Guide groo~es 76 and 77 provided therein are guided by mea~s o~ guide member~
78 and 79 secured to the chassis. Provided along the le~t-hand edge o~.the repea~ feed plate 75 are a saw-too~h cam portion 80, a parallel cam portion 81 continuou~
there~Jith, and a sliding positi~n stabi-lizing cam portion 82 co~tinuou~ with the parallel cam portion 81. A steel :
-. . , - . .
. ~ 6`9 ~Z
ball (not sho~m) which is elastically loaded by a spring holds the groove portion in the sliding-position-stabilizin$ cam portion, so as to set the feeding position of the repeat, ~eed plate 75 properl~, while the pin 39 is adapted -to engage the saw tooth cam portion 80. Provided on the right~hand edge of -the repeat feed plate 75 .i-~ are a para~lel cam portion 83 and a recessed cam por-tion 84 .
conti~uous with the cam portion 83, while a projec-~ing pi~
46 (Fig. 1) projecting from the root piece 44c of the arm stopper 44 is adapted to slidingl~ contact the cam portions 83 and 84. In addition,~ secured to the rear end of the repeat feed p~ate 75 is a hook member 75a, which is adapted to engage a pin 72c on the guide cam 72 so as to hook on the guide cam 72 for returning same to a ~iven position.
Shc~nn at 85 is an operating rod for the speed change-over swîtch 49.
In operation~ as sho~m in ~ig. 2~ when the repeat feed plate 75 is pushed to its rearmost portion9 a power ~ :~
source is turned off and the lifter plate ~9 assumes an ~up~ mode. I~en the repeat feed plate 75 i~ pulled onè
step forward, then a po~er source is turned on and the ..
lifter plate 69 a~sumes a Idol~nl mode a~d a ma~ual mode. :
l~hen the repeat feed pIate 75 is pulled second, third, -- four~h steps forwaras, then there may be achieved an auto repeat mode a~d a repeat cycle designating mode. In this respect~ when the repeat feed plate 75 is put i~to an auto :
- !
: 12 -.
repeat mode, then the guide cam 72 rotates in the clock- ' wise direction about the pivot 72a under the action of-~he spring 74, ~lith ~he result that the sl~itch operating rod 73 pushes the operating plate 48b of the swi~ch 48 so as to bring the switch 48 (~ig. 53 to its closed position~
~hen, electric power is supplied to the motor 50 so as to drive same, so that a rotational force is tr~nsmitted through the medium of the drive shaft 54 and belt 56 to the turn table 5~ so as to rotate same. A reproducing speed o~ a disc is selected b~ operating the operating rod 85, after ~hich the operating rod 15 provided for start-reject nperation is operated so as to rotate the operating portion 15b~ with the result that the acting piece 11 o~ the first trip ma~ be rotated about the pivot 7 in the cloc~ise direction~ as viewed in Fig. 1. At this time 7 the pawl piece 10 engages the proJecting pa~l -' 3 provided on the lower portion of the center gear 1, and '~
the center gear 1 is being rotated through the medium of the turn table 53 ~hich is being driven b~ the motor 50~ , ~o that the projecting pawl 3 pushes the pawl piece 10.
A~ a result, a recessed portion 6a in the drive gear 6 having the first trip is rotated in the clock~ise direction, a~ viewed in ~ig. 1~ so the gear continuous with the recessed po~tion 6a meshe~ with the center gear,l so as to be rotate~. In addition~ the rotation of the d~ive gear 6 causes ~,he,elongatad pin 6b engaging the tVI shaped cam .) , ' :. . ''' - 13 - , ,,;
6~ ~Z
portion 35 of the repeat feed lever 33 to be disengaged from the ~V~ shaped cam portion 35~ so that the repeat feed lever ~3 i5 rotated about the pivot 17 in the clock-wise direction. ~owever, as the repeat feed lever 33 goes towards the guide cam portion 36 after the afor~said disengagement, the repeat feed lever 33 i~ rotated in the countercloc~Ji~e clirection through a large angle, a~ter which the short pins 6c~ 6d on the undersurface of the \ drive gear 6 are guided along the arcuate edge of the size de~ermining lever 28. On the other hand? the rotation of the drive gear 6 ca~ses the projecting element 20 to ; :
be guided along the cam groove 14. ~ig. 1 is illustrative o~ the auto-mechanism-stopping co~dition~ in which the projecting element- 20 is guided by a deep bottom portion of the cam groove 14. As a result? the lif-ter shaft 51 engaging the other end 18b of the main lever 18 is moved ~:
upwards in Fig~ 1, so that ~he lifter plate 69 positioned o~ the back side thereof remains in its lo~Jered position~ :
- - As -the drive gear 6 rotates~ the dep~h o~ the cam groove 14 becomes }ess, so the projecting element 20 i~ lifted so as to.raise the one end 18a of the main lever 18. It :.
follows.that the lifter shaft 51 is pushed downwards in ~ig. 1, and the lifter plate 69 gradually ~oves up~ard~
as sho~m in ~igr 3 Accordingly~ the tone arm 60 mount-ed .. ;~
o~ th.e lifter plate 69 is liftéd. Then, the projecting piece 21 on the main lever 18 contacts the operating pin ';
' '. :', 25 on the tone arm operating plate 24, so that the tone arm 60 is pushed back through the medium of the tone arm operating plate 24 and sector lever 23. ~he tone arm operating plate 24 cooperates with the sector lever 23 with the aid of the spring 24a, so that even in the event of the over-stroke of the tone arm operating plate 24, the tone arm GO may be moved sa~ely and positively.
~ he subsequent rotation of the drive gear 6 causes the projecting element 20 to reach a turn-over portion 14a of the cam groove 14, so that the rotation of the main lever 18 is reversed9 i.e~, the main lever 18 is rotated in the cloc~ise direction, and then the extension l9a of the coil spring 19 contacts the pin 25~ therebJ rotat~
ing the tOnQ arm operating plate 24 in the coun~erclocl~ise direction, i.e~ 9 rotating the tone arm 60 in the lead-in direct;on. Immediatel~ before the lead-in operation o~
the tone arm 60, the size determining lever 28 whose move-me~t has been limited by means of the long pin 6b, short pins 6c, 6d rotates in the clockwise direction under the action of the spring 32. In this respect~ the rotational stroke of the tone arm 60 is arbitraril~ determined b~
rotatin~ the selector suitably, so that the size selector rod 31 may engage either one of the cam portions 29a and 29b~ I~ other words9 this en~agi~g pos}tion of the size selector r~d 31 with the cam portion 29a or 29b serves a3 a reference point for the drop point of a stylus on ~'' ' . ' .- , ' .
~ ~ ~9 ~ ~2 the ~P or EP disc. The tone arm operating plat~ 24 is protected from an unwanted stress accruing from an over-stroke by means of the spring 19 provided for the main lever 18. In this manner, the lead-in operation of the tone arm ~0 i.~ completed. ~hereafter, the size determin-ing lever 28 is returned to its given position by mean~
of the short pin 6d.~ and then the long pin 6b on the drive gear 6 pushes the parallel ca~ por~ion 34 provided on the ) side of one piece 33a of the repea-t feed le~er 33, llhereby the repeat ~eed lever ~3 is rotated about -the pivot 17 in ~ .
the cloc~ise directionl. As a result ? the projecting pin 39 on a feeding piece which is r~tatably mounted on the sida of other piece 33b pushes the saw -tooth cam portion 80 of the repeat feed plate 75 one pitch forwards? thereby moving the repeat feed plate 75 rearwardl~. In other ords, the cycle of a repeat memory is counted do~m. At ~.
this time, the pro3ecting element 20 on the main lever I8 .~ ~ .
enters a deep bottom portion of the cam ~roove 14 to lower , the lifter plate for descending the tone arm 60. At this . .
.
time, the drive gear 6 complete its one c~cle of rotation, ~
and the recessed portio~ 6a thereof engages the center gear 1, thereby stopping its rotation. ~hus~ th~ turn table 53 alone rotates so as to con~inue playing. ~ -When the play is about to end and then the stylus runs aut of the fi~al sound groove~ the tip portion 24c .
of the arm operatin~ plate 24 pushes the tip 9a of the .. ...
". ~ .... ...
.
- .
~1~ 6~ ~ ~2 second trip 9 for~lards, thereby urging the first -trip 8 so as to rotate in the countercloc~1ise direction~ so that the drive gear 6 ma~ be rotated again. As a result, the main lever 18 is rotated in the countercloc~lise direction as viewed in Fig. 3~ and the projecting piece 21 pushes the operating pin 25 provided on the arm operatin~ plate 24~ so that the arm operating plate is rotated in the c~ocln~ise direction, and hence the tone arm 6Q is guided onto the arm rest 68. H~ever, slnce the drive ~ear 6 continues rotating, the tone arm is ~lead-in~ driven by means of the main lever 18 again, thus entering the second playing condition~
Meam~hile, the repeat feed plate 75 will not be :~
moved ~~n~ a ~ode of power-source-o~f-and-lifter-plate-up and a mode of in~inite auto-repea~? because of the through-hole 67 and because a long parallel cam portion 81 is providea in the front portion of the saw tooth cam ~-80, while ~he parallel cam portion 86 having the same height as ~hat of the apexes of the saw teeth of the cam 80 and free of a saw tooth portion is provided in the rear portion of the saw teeth cam 80.
~ hus9 the user may select a desired auto-repeat cycle~- because the repeat feed plate 75 may be moved to indicate an au~o-repeat cycle on a panel.
.~ . ~- .
With the aforesaid arrangement, wherein the re~pectîve mechanisms of t~e repeat memory mag be counted do~m, after ..
. .
. - 17 - ~
~ ' - ~ - -. ~
~ ~9 ~ ~Z
the repea-t feed pla-te 75 has been shifted from one cycle of auto repeat mode to a manual mode t the projectirlg pin 46 on the arm stopper 44 is guided by the cam portion 84, so the arm stopper 44 maintains its position, to which the stopper 44 has been rotated in the clockwise direction in Fig. 3. Thus, after -the reproduction of the final sovnd groove in a disc~ as ha~ been described earlier~
the projec~ing piece 2 on the arm operating plate 24 adapted to effect the lead-out operatîon engages the hook portion 45 7 SO that the ~ovement of the arm operating plate 24 in the lead-in direction is lockedO Accol~dingly~ depite the rotation of the ~rive gear 6, the arm operating plate ~
not be operated in the leaa-in direction. ~owever, the continuing rotatio~ of the drive gear 6 causes the arm perating plate 24 to be shif-ted to a power-source-off same mode. ~t the/time? due to ~he engagement of the long pin 6b ~ith the 'V' shaped cam groove ~5 in the repeat feed lever 339 the projecting pin 41 on the repeat feed lever .
33 again en~ages the edge of one piece 44a of the arm stopper 41~ thereb~ rotating the arm stopper ~ in the countercloc~ise direction, so that the projecting piece .
24b is c~isengaged from the hook portion 45. Accordinglys i~ the user desires a manual lead-in operation~ then the tone arm 60 ma~ be brought into a lead-in operation b~
the user.
an the other hand9 in case the user does not pu~
.,~ . .
~i9~'~Z
th~ tone arm 60 into the lead-in operation, the rotation of the drive gear 6 cau~es the long pin 6b to push the cam 34 of one piece 33a of the repeat feed lever ~3q there-by rotating the lever 33 in the clock~Jise direction~ In addition, the projecting pin 39 pushes the feed plate 75, so the ~eed plate is returned to it8 stop position. In this case9 the cam 72 is returned to its initial position by means of the ~eed plate 75~ and the pro~ecting piece 73 is detached ~rom the switch 48 so as to turn the switch o~f,for stopping the player~ ~he long pin 6b engages the .
cam 35 to lock the drive gear 6~ l~en the repeat feed plate 75 is shi~ted to a manual mode ~or a po~rer-source-of~ mode), with the tone arm 60 placed on the arm res-t 69, then the projecting pin 46 on the arm ~topper 44 is guided b~ means of the cam portion 84, so that the arm stopper 44 is rotated about the pivot 43 in ~he clockwise direction, and hence the hook portion 45 engages the upright piece 24b. Accordin~ly, even in case the operating rod 15 provided ) ~or the start-reaect operation is operated in the ~anual mode so as to drive the drive gear 6 a~ ha~ been described earlier~ the main lever to be rotated by the cam groove ab~orbs the variation in cam by mean~ of the spring 199 ~o.that ~he hook portion 45 limit~ the rotation o~ -the uprigh-t piece 24b. Accordingly, when operated manually, even i~ ~he operating rod 15 provided for start-reject operation is operated~ the tone arm will not be put into g _ .
.
. ~ - . . ~ .. ... . - .
~069~9L2 a lead-in operation.
Re~erring to ~ig. 4 Bho~Jing the essential part in a plan view, in case the repeat feed plate 75 is shifted up ~o an index of~auto-repeat cl.J, to~i.nfi~ite cycle ~sho~n in mode indexes in ~ig. 1), the hook portion 45 of ~he arm stopper 44 is brought to a position K39 being kep~ awa~ from the upright piece 24b and thus free to move.
Subsequently~ when the repeat feed ~plate 75 is shifted to the power-source-off o~on mode (or a manual mode~, the hoo~ portion 45 moves `towards Kl~ In this respect, ~1hen the drive gear 6 is in its given position rather than an ` :
the aut~-repeat position, then/projecting pin 41 on the repeat : .
~eed lever 33 remains in a position C2, the movement of . :
the arm stopper L~4 iS limited in ~he position C2, the ~ .
en~ of one piece 44a remains in a position K"~and the arm operating plate 24 is free to move~ Meanwhile~ after the starting b~ the auto-repeat operation, the projecting pin 0:11 ' ' 41/t~e repeat feed lever 75 remains in the position Cl~
so that the ~rm stoppe~ L~4 iS positioned in the posi~-ions ~tl and Kl. In the position Kl; the uprigh~ piece 24b on ~he arm operating plate 24 is returned to assume a 'rest-in' position9 but prevented from a lead-in operationO
- 20 ~
....
.
Claims (15)
1. In a phonograph record player having a rotatable turntable for supporting a phonograph record during the playing thereof, drive means for rotating said turntable, and a tone arm assembly including a tone arm carrying a pickup with a stylus to track the groove of a phonograph record on said turntable during a play operation and being mounted for lead-in movement of said tone arm from an elevated rest position outside the perimeter of said turntable to a selected set-down position of the stylus on a record supported by said turntable for commencement of a play operation and for return movement of said tone arm to said rest position upon the termination of a play operation: a control mechanism comprising gear means selectively driven by said drive means;
trip means actuable at will and upon completion of each play operation to cause a period of driving of said gear means by said drive means;
lever means driven by said gear means for urging said tone arm to automatically undergo said return movement and then said lead-in movement during respective portions of each period of driving of said gear means;
latch means for preventing said lead-in movement of the tone arm under the urging of said lever means;
a mode selecting member manually movable to positions for selecting stop, manual and repeat modes of oper-ation, respectively, of the record player;
means for causing operation of said drive means when said mode selecting member is in any one of said positions thereof for selecting the manual and repeat modes of operation, respectively;
means for disengaging said latch means in response to the disposition of said mode selecting member in each said position thereof for selecting a repeat mode of operation; and means responsive to driving of said gear means for temporarily disengaging said latch means in a concluding portion of each period of driving of the gear means following said portion thereof corresponding to the automatic lead-in movement of the tone arm so that, with said mode selecting member in the position thereof for selecting the manual mode of operation, said tone arm can then be manually lead-in from said rest position to a manually determined set-down position on the record.
trip means actuable at will and upon completion of each play operation to cause a period of driving of said gear means by said drive means;
lever means driven by said gear means for urging said tone arm to automatically undergo said return movement and then said lead-in movement during respective portions of each period of driving of said gear means;
latch means for preventing said lead-in movement of the tone arm under the urging of said lever means;
a mode selecting member manually movable to positions for selecting stop, manual and repeat modes of oper-ation, respectively, of the record player;
means for causing operation of said drive means when said mode selecting member is in any one of said positions thereof for selecting the manual and repeat modes of operation, respectively;
means for disengaging said latch means in response to the disposition of said mode selecting member in each said position thereof for selecting a repeat mode of operation; and means responsive to driving of said gear means for temporarily disengaging said latch means in a concluding portion of each period of driving of the gear means following said portion thereof corresponding to the automatic lead-in movement of the tone arm so that, with said mode selecting member in the position thereof for selecting the manual mode of operation, said tone arm can then be manually lead-in from said rest position to a manually determined set-down position on the record.
2. In a phonograph record player having a rotatable turntable for supporting a phonograph record during the playing thereof, drive means for rotating said turntable, and a tone arm assembly including a tone arm carrying a pickup with a stylus to track the groove of a phonograph record on said turntable during a play operation and being mounted for lead-in movement of said tone arm from an elevated rest position outside the perimeter of said turntable to a selected set-down position of the stylus on a record supported by said turntable for commencement of a play operation and for return movement of said tone arm to said rest position upon the termination of a play operation: a control mechanism comprising gear means selectively driven by said drive means;
trip means actuable at will and upon completion of each play operation to cause a period of driving of said gear means by said drive means;
lever means driven by said gear means for urging said tone arm to automatically undergo said return movement and then said lead-in movement during respective portions of each said period of driving of said gear means;
latch means for preventing said lead-in movement of the tone arm under the urging of said lever means;
a mode selecting member manually movable to positions for selecting stop, manual and repeat modes of operation, respectively, of the record player, said position of the mode selecting member for selecting the manual mode of operation being interposed between said positions for selecting the stop and repeat modes of operation, respectively;
means for causing operation of said drive means when said mode selecting member is in any one of said positions thereof for selecting the manual and repeat modes of operation, respectively;
means for disengaging said latch means in response to the disposition of said mode selecting member in each said position thereof for selecting a repeat mode of operation;
means for temporarily disengaging said latch means in a concluding portion of each period of driving of the gear means following said portion thereof corresponding to the automatic lead-in movement of the tone arm so that, with said mode selecting member in the position thereof for select-ing the manual mode of operation, said tone arm can then be manually lead-in from said rest position to a manually determined set-down position on the record;
and means responsive to each said period of driving of the gear means for effecting the step-wise movement of said mode selecting member in the direction toward said position thereof for the stop mode.
trip means actuable at will and upon completion of each play operation to cause a period of driving of said gear means by said drive means;
lever means driven by said gear means for urging said tone arm to automatically undergo said return movement and then said lead-in movement during respective portions of each said period of driving of said gear means;
latch means for preventing said lead-in movement of the tone arm under the urging of said lever means;
a mode selecting member manually movable to positions for selecting stop, manual and repeat modes of operation, respectively, of the record player, said position of the mode selecting member for selecting the manual mode of operation being interposed between said positions for selecting the stop and repeat modes of operation, respectively;
means for causing operation of said drive means when said mode selecting member is in any one of said positions thereof for selecting the manual and repeat modes of operation, respectively;
means for disengaging said latch means in response to the disposition of said mode selecting member in each said position thereof for selecting a repeat mode of operation;
means for temporarily disengaging said latch means in a concluding portion of each period of driving of the gear means following said portion thereof corresponding to the automatic lead-in movement of the tone arm so that, with said mode selecting member in the position thereof for select-ing the manual mode of operation, said tone arm can then be manually lead-in from said rest position to a manually determined set-down position on the record;
and means responsive to each said period of driving of the gear means for effecting the step-wise movement of said mode selecting member in the direction toward said position thereof for the stop mode.
3. A phonograph record player according to claim 2; in which said mode selecting member has a plurality of positions thereof for selecting repeat modes of operation and which, considered in the direction opposed to said direction of step-wise movement, provide progressively increasing numbers of repeated play operations.
4. A phonograph record player according to claim 3;
in which said mode selecting member has means thereon for preventing said step-wise movement thereof when said mode selecting member is disposed in the one of said plurality of positions for selecting repeat modes of operation which is furthest from said position for selecting the stop mode, so that said one position for selecting a repeat mode of operation corresponds to indefinitely repeated play operations.
in which said mode selecting member has means thereon for preventing said step-wise movement thereof when said mode selecting member is disposed in the one of said plurality of positions for selecting repeat modes of operation which is furthest from said position for selecting the stop mode, so that said one position for selecting a repeat mode of operation corresponds to indefinitely repeated play operations.
5. A phonograph record player according to claim 4;
further comprising detent means for releasably holding said mode selecting member in each of said positions thereof.
further comprising detent means for releasably holding said mode selecting member in each of said positions thereof.
6. A phonograph record player according to Claim 3; in which said means for effecting the step-wise movement of said mode selecting member includes ratchet teeth arranged along an edge of the latter in said direction of movement thereof, pawl means normally spaced from said edge of the mode selecting member to permit the manual movement of the latter to any one of said positions of the mode selecting member, and means responsive to said concluding portion of each period of operation of said gear means for imparting an operative stroke to said pawl means by which the latter acts against one of said ratchet teeth for effecting said step-wise movement.
7. A phonograph record player according to Claim 6; in which said ratchet teeth are disposed along said mode selecting member so as to be out of the range of said operative stroke of the pawl means in the position of said mode selecting member for selecting the stop mode and also in the one of said plurality of positions for selecting repeat modes which is furthest from said position for selecting the stop mode so that, when said mode selecting member is in said one position, said step-wise movement is prevented and the play operation is repeated indefinitely.
8. A phonograph record player according to claim 7;
in which said gear means includes a drive pinion rotatable by said drive means, and a rotatable control gear having peripheral teeth with a gap therein facing toward said pinion in a stop position of said control gear and a continuous cam having a lead-out portion followed by a lead-in portion;
said trip means is mounted on said control gear and is operative on each actuation to angularly displace said control gear from said stop position for engaging said peripheral teeth with said pinion and thereby causing a revolution of said control gear corresponding to said period of operation;
said tone arm assembly further includes an operating arm coupled with said tone arm; and said lever means includes a cam follower successively engaging said lead-in and lead-out portions of said cam during each revolution of said control gear for effecting corresponding lead-out and lead-in movements of said lever means, means on said lever means engageable during said lead-out movement of the latter with said operating arm for effecting said return movement of the tone arm, and resilient means on said lever means engageable with said operating arm during said lead-in movement of the lever means for urging said lead-in movement of the tone arm.
in which said gear means includes a drive pinion rotatable by said drive means, and a rotatable control gear having peripheral teeth with a gap therein facing toward said pinion in a stop position of said control gear and a continuous cam having a lead-out portion followed by a lead-in portion;
said trip means is mounted on said control gear and is operative on each actuation to angularly displace said control gear from said stop position for engaging said peripheral teeth with said pinion and thereby causing a revolution of said control gear corresponding to said period of operation;
said tone arm assembly further includes an operating arm coupled with said tone arm; and said lever means includes a cam follower successively engaging said lead-in and lead-out portions of said cam during each revolution of said control gear for effecting corresponding lead-out and lead-in movements of said lever means, means on said lever means engageable during said lead-out movement of the latter with said operating arm for effecting said return movement of the tone arm, and resilient means on said lever means engageable with said operating arm during said lead-in movement of the lever means for urging said lead-in movement of the tone arm.
9. A phonograph record player according to claim 8; in which said latch means is engageable with said operating arm for preventing said lead-in movement of the tone arm, and said operating arm is engageable with said trip means for actuating the latter upon the positioning of said tone arm corresponding to said completion of a play operation.
10. A phonograph record player according to claim 8;
in which said means for imparting an operative stroke to said pawl means includes a pivoted repeat feed lever carrying said pawl means and having a cam surface, and a projection on said control gear engageable with said cam surface for effecting an angular displacement of said repeat feed lever following the engagement of said cam follower with said lead-in portion of the cam on said control gear and by which said operative stroke is imparted to said pawl means.
in which said means for imparting an operative stroke to said pawl means includes a pivoted repeat feed lever carrying said pawl means and having a cam surface, and a projection on said control gear engageable with said cam surface for effecting an angular displacement of said repeat feed lever following the engagement of said cam follower with said lead-in portion of the cam on said control gear and by which said operative stroke is imparted to said pawl means.
11. A phonograph record player according to claim 10; in which said repeat feed lever further has a notch following said cam surface and receiving said projection on the control gear in said stop position of the latter, and spring means acting on said repeat feed lever in the direction to urge said cam surface and notch against said projection on the control gear, whereby to prevent inadvertent movement of said control gear from said stop position.
12. A phonograph record player according to Claim 11 in which said means for temporarily disengaging said latch means includes a disengaging member on said repeat feed lever acting on said latch means for disengaging the latter in response to the reception of said projection in said notch of the repeat feed lever.
13. A phonograph record player according to Claim 10 in which said means for causing operation of the drive means includes switch means having a normally open condition for halting the operation of said drive means, means acted upon by said mode selecting member for closing said switch means when said mode selecting member is in any one of said positions thereof for selecting the manual and repeat modes of operation, and means for closing said switch means during each revolution of said control gear.
14. A phonograph record player according to Claim 13; in which said means for closing the switch means during each revolution of the control gear includes a switch actuating member on said repeat feed lever, a pivoted switch support lever carrying said switch means, spring means urging said switch support lever in the direction to engage said switch means with said switch actuating member for closing said switch means, and means on said switch support lever engageable by said projection on the control gear in said stop position of the latter for displacing said switch support lever in a direction to separate said switch means from said switch actuating member and thereby achieve said normally open condition of the switch means with said mode selecting member in the stop mode position thereof.
15. A phonograph record player according to claim 2; further comprising arm lifting means actuable by said lever means for raising said tone arm during said return movement and said lead-in movement, and in which said means for causing operation of the drive means includes switch means having a normally open condition for rendering said drive means inoperative, a control lever having a switch actuating portion engageable with said switch means for closing the latter and causing operation of said drive means, means acting on said control lever for disengaging said switch actuating portion from said switch means in response to the disposition of said mode selecting member in the stop mode position of the latter, and means acting on said control lever for engaging said switch actuating portion with said switch means upon movement of said mode selecting member away from said stop mode position; and further in which said control lever has cam means thereon acting on said arm lifting means to hold said tone arm in a raised position when said mode selecting member is in said stop mode position thereof.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP995676A JPS5857828B2 (en) | 1976-02-03 | 1976-02-03 | auto player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1069442A true CA1069442A (en) | 1980-01-08 |
Family
ID=11734389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA270,716A Expired CA1069442A (en) | 1976-02-03 | 1977-01-31 | Phonograph record player with repeat control |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5857828B2 (en) |
| AU (1) | AU503237B2 (en) |
| CA (1) | CA1069442A (en) |
| DE (1) | DE2704319A1 (en) |
| FR (1) | FR2340597A1 (en) |
| GB (1) | GB1573567A (en) |
| NL (1) | NL7701113A (en) |
-
1976
- 1976-02-03 JP JP995676A patent/JPS5857828B2/en not_active Expired
-
1977
- 1977-01-28 AU AU21749/77A patent/AU503237B2/en not_active Expired
- 1977-01-31 CA CA270,716A patent/CA1069442A/en not_active Expired
- 1977-02-01 GB GB408677A patent/GB1573567A/en not_active Expired
- 1977-02-02 DE DE19772704319 patent/DE2704319A1/en not_active Withdrawn
- 1977-02-02 NL NL7701113A patent/NL7701113A/en not_active Application Discontinuation
- 1977-02-03 FR FR7703029A patent/FR2340597A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| AU2174977A (en) | 1978-08-03 |
| FR2340597A1 (en) | 1977-09-02 |
| NL7701113A (en) | 1977-08-05 |
| FR2340597B1 (en) | 1983-08-26 |
| GB1573567A (en) | 1980-08-28 |
| AU503237B2 (en) | 1979-08-30 |
| JPS5857828B2 (en) | 1983-12-22 |
| DE2704319A1 (en) | 1977-08-04 |
| JPS52104105A (en) | 1977-09-01 |
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