SE128200C1

SE128200C1 -

Info

Publication number: SE128200C1
Authority: SE
Publication date: 1950-01-01

Description

Uppfinnare: F. Kylemo. Inventor: F. Kylemo.

FOreliggande uppfinning avser en skivvaxlingsanordning for grammofoner enligt sven- ska patentet 109 067, vid vilka en stapel av for spelling avsedda skivor vilar ovanfor skivtallriken pa den byre anden av en yttre axel, som ar koncentrisk med skivtallriks- axeln och har en excentrisk forlangning, som genomgar alla skivornas i stapeln utom den undres centrumhal, varvid mellan den yttre axeln och dess excentriska forlangning är anordnat ett fOrbindningsstycke med en hojd, som motsvarar eller nagot Overstiger tjockle- ken av en skiva, och vilket tillater forskjutning av den undre skivan fran ett excentriskt lage i forhallande till skivtallriken, varjamte den yttre axeln innehallcr en inre, Nridbar, och med densamma koncentrisk axel, som vid sin ovre ande Or forsedd med ett excentriskt anordnat frammatningsstycke, vilket mid den inre axelns vridning bibringar den undre ski- van nyss namnda forskjutningsrorelse fran excentriskt lage till koncentriskt lage i fOrhallande till den yttre axeln, sa att skivan kan nedforas till spellage pa. skivtallriken. The present invention relates to a disc changing device for gramophones according to Swedish patent 109 067, in which a stack of discs resting above the disc plate on the upper end of an outer shaft, which is concentric with the disc disc shaft and has an eccentric extension, which undergoes all the discs in the stack except the center hall of the lower disc, wherein between the outer shaft and its eccentric extension there is arranged a connecting piece with a height corresponding to or slightly exceeding the thickness of a disc, and which allows displacement of the lower disc from an eccentric in relation to the turntable, the outer shaft containing an inner, Nridbar, and with the same concentric shaft, as at its upper end Or provided with an eccentrically arranged feed piece, which by the rotation of the inner shaft gives the lower disc just mentioned displacement tube from eccentric position to concentric position in relation to the outer axis , so that the disc can be lowered to play on. the turntable.

Uppfinningen, vilken innebar en fOrbattring av anordningen enligt huvudpatentet, kannetecknas darav, att det excentriskt an- ordnade frananaatningsstycket paverkar den understa skivan under formedling av en rulle eller en slid, vilken Or lagrad pa frammat- ningsstycket, varvid i forbindningsstycket mellan den yttre axeln och dess excentriska fOrlangning Or anordnad en urtagning eller ett hal for tillatande av rullens eller slidens rorelser. The invention, which involved an improvement of the device according to the main patent, is characterized in that the eccentrically arranged release piece acts on the lower disc during the formation of a roller or a slide, which is mounted on the feed piece, wherein in the connecting piece between the outer shaft and its eccentric extension Or provided a recess or a hall to allow the movements of the roller or slide.

Uppfinningen beskrives i det foljande cued hanvisning till bifogade ritning, pa vilken fig. 1 visar en anordning enligt uppfinningen, sedd Iran sidan, fig. 2 visar samma anordning, sedd ovanifran, fig. 3 visar en annan anordning enligt uppfinningen, sedd fran sidan, fig. 4 visar samma anordning, sedd ovanif ran, fig. 5 visar ett snitt utefter linjen i fig. 3, sedd i pilarnas riktning, samt figurer- I na 6, 7 och 8 visa samma anordning som figurerna 3, 4 och 5 i ett annat arbetslage. The invention is described in the following cued male reference to the accompanying drawing, in which Fig. 1 shows a device according to the invention, seen from the Iran side, Fig. 2 shows the same device, seen from above, Fig. 3 shows another device according to the invention, seen from the side, Fig. 4 shows the same device, seen from above, Fig. 5 shows a section along the line in Fig. 3, seen in the direction of the arrows, and Figs. 6, 7 and 8 show the same device as Figs. 3, 4 and 5 in another team.

I fig. 1 betecknas med 1 en med skivtallriksaxeln koncentrisk axel, ay vilken endast den byre delen Or visad och pa mars Ovre On-de en stapel av for spelning avsedda skivor (ej visade) kan vila ovanfor skivtallriken (ej visad). Axeln 1 Or fiirsedd med en excentrisk forlangning 2, som genomgar alla skivorna stapeln utom den undres centrumhal. Axeln 1 Or genomborrad och inuti densamma Or koncentriskt anordnad en inre, vridbar axel 3. Axeln 3 Or forsedd med ett excentriskt anordnat frammatningsstycke 4, bestaende av en rund pinne, som Or nedslagen i ett hal i axelns 3 ovre ande. P0 frammatningsstycket 4 Or en rulle 5 vridbart lagrad. In Fig. 1, 1 denotes a shaft concentric with the turntable shaft, in which only the upper part Or shown and on March Upper On-de a stack of discs (not shown) can rest above the turntable (not shown). The shaft 1 Or is provided with an eccentric extension 2, which passes through all the discs of the stack except the center hall of the wonder. Shaft 1 Or pierced and inside it Or concentrically arranged an inner, rotatable shaft 3. Shaft 3 Or provided with an eccentrically arranged feed piece 4, consisting of a round pin, which Or is driven into a hall in the upper spirit of the shaft 3. P0 feed piece 4 Or a roller 5 rotatably mounted.

Ett forlangningsstycke 6 med en MN, som motsvarar eller nagot overstiger tjockleken am en skiva, Or sa anordnat mellan axeln 1 och dess excentriska forlangning 2, att det tillater forskjutning ay den undre skivan frail ett excentriskt till ett koncentriskt lage i forhallande till skivtallriken. I fiirbindningsstycket Or gjord en urtagning 7, i vilken frammatningsstycket 4 med rullen 5 ken inga, da den inre axeln 3 vrides moturs fran sitt i fig. 1 visade lage. Denna anordning giver en skonsammare behandling ay skivorna On den i huvudpatentet beskrivna anordningen, einedan rullen 5 rullar mot insidan am Wet i grammofonskivan, under det att enligt huvudpatentet frammatningsstycket glider mot halets kant och salunda orsakar storre slitage skivan. An extension piece 6 with an MN corresponding to or slightly exceeding the thickness of a disc, Or arranged between the shaft 1 and its eccentric extension 2, that it allows displacement of the lower disc from an eccentric to a concentric layer in relation to the disc plate. A recess 7 is made in the connecting piece Or, in which the feed piece 4 with the roller 5 does not, when the inner shaft 3 is turned counterclockwise from its bearing shown in Fig. 1. This device provides a gentler treatment of the discs on the device described in the main patent, since the roller 5 rolls towards the inside am Wet of the gramophone record, while according to the main patent the feed piece slides towards the edge of the tail and thus causes greater wear on the disc.

I figurerna 3, 4, 5, 6, 7 och 8, sorn visa en annan utfOringsform av uppfinningen, ha samma beteckningar for axlarna som i fig. 1 och 2 anvants. Frammatningsstycket 4 Or har utbildat som en relativt klen pinne, vilken Or nedslagen i ett hal i axelns 3 ovre On-de. Frammatningsstycket 4 ingriper vridbart i ett hal i en slid 8, som vilar ph den med skivtallriken koncentriska axelns ovre ande och — som styres dels av frammatningsstycket 4 och dels i ett hal 9 i mellanstycket 6, vilket den genomloper. Genom vridning av axeln 3 forskjutes sliden 8 i huvudsak vinkelratt mot axeln 1 frail det i figurerna 6, 7 och 8 visade laget, dar den ligger helt under den ovre excentriska axelforlangningen 2 till det i figurerna 3, 4 och 5 visade ldget, dar hela sliden Jigger Over axeln 1. Slidens 8 langd Ar i huvudsak like med diametern av halet i de orammofonskivor, som skola vaxlas. In Figures 3, 4, 5, 6, 7 and 8, which show another embodiment of the invention, have the same designations for the shafts as used in Figures 1 and 2. The feed piece 4 Or has formed as a relatively small stick, which Or is struck in a hall in the upper On-end of the shaft 3. The feed piece 4 rotatably engages in a hall in a slide 8, which rests on the upper end of the disc-concentric shaft and which is controlled partly by the feed piece 4 and partly in a hall 9 in the intermediate piece 6, which it passes through. By rotating the shaft 3, the slide 8 is displaced substantially perpendicular to the shaft 1 from the layer shown in Figures 6, 7 and 8, where it lies completely below the upper eccentric shaft extension 2 to the joint shown in Figures 3, 4 and 5, where the whole slide Jigger Over the shoulder 1. Length 8 of the slide Ar essentially equal to the diameter of the tail in the orammophone records that are to be waxed.

I andamal att fOrhindra en oavsiktlig nedvaxling av en skiva dr sliden 8 vid den ande, som under skivans sidofOrskjutning ej utovar tryck mot skivan, forsedd med en nedatriktad stang 10, vars nedre dnde ar bockad in mot axeln 1 och skjuter in i ett hal i denna. For att stangen 10 vid slidens fiirskjutning ej skall hindras av den inre vridbara axeln 3, dr i denna mittfor stangens 10 nedre del anordnad en urfrasning 11, i vilken stangens 10 dude ingar, se speciellt figurerna 5 och 8. In order to prevent an unintentional downshifting of a disc where the slide 8 at the end, which during the lateral displacement of the disc does not exert pressure against the disc, provided with a downwardly directed rod 10, the lower end of which is bent towards the shaft 1 and projects into a hall in this. In order that the rod 10 during the sliding of the slide should not be hindered by the inner rotatable shaft 3, a chamfer 11 is arranged in this lower part of the central rod 10, in which the rods 10, in particular the figures 5 and 8.

Med den nu beskrivna utforingsformen erhalles aven en skonsammare behandling av skivorna, emedan sliden 8 ej glider nanmvart i skivans hal utan utdvar ett tryck i forskjutningens riktning Over en ganska stor yin av halets inside. With the embodiment now described, a gentler treatment of the discs is also obtained, since the slide 8 does not slide inwardly in the slide of the disc but exerts a pressure in the direction of the displacement over a rather large yin of the inside of the tail.

Claims

A patent claim: A disc changing device having a gramophone in which a stack of discs for resting rests above the turntable on the upper end of an outer shaft (1) which is concentric with the turntable shaft and has an eccentric extension (2). which passes through all the discs in the stack except the center hall of the lower one, a connecting piece (6) being arranged between the outer shaft and its eccentric extension (2) with a height corresponding to or slightly exceeding the thickness of a disc, and which allows displacement of the lower disc & Lin an eccentric bearing to a concentric lgege in relation to the disc plate, and the outer shaft lane-hailer an inner, rotatable, and with the same concentric shaft (3), which at its upper end is provided with an eccentrically arranged feed piece (4 ), which on the rotation of the inner shaft imparts the lower disc just mentioned displacement movement from eccentric 'age to concentric position in relation to the outer shaft (1) , so that the disc can be lowered into play on the disc plate according to patent 109 067, characterized in that the eccentrically arranged feed piece (4) affects the bottom disc during the formation of a tulle (5) or a slide (8), which is stored on the feed piece (4), wherein in the connecting piece (6) between the outer shaft (1) and its eccentric extension (2) there is provided a recess (7) or a hall (9) to allow the movements of the roller or slide. Device according to claim 1, Unsigned in that the slide (8) arranged for the action of the disc is displaceable substantially perpendicular to the outer shaft (1).

Device according to claim 1 or 2, characterized in that the length of the slide (8) is substantially equal to the diameter of the tail in a gramophone record intended for waxing.

Device according to claim 3, Unsigned in that the slide (8) at the spirit, which during the lateral displacement of the disc does not exert pressure on the disc, is provided with a downwardly directed rod (10) in order to prevent accidental downshifting of a disc.