SE123735C1

SE123735C1 -

Info

Publication number: SE123735C1
Authority: SE
Publication date: 1948-01-01

Description

KLASS 51 c:33 BESKRIVNING OFFENTLIGOJORD AV KUNGL. PATENT- OCH REG1STRERINGSVERKET BEV1LJAT DEN 4 NOVEMBER 1948 PATENTT1D FRAN DEN 27 MA) 1946 PUBLICERAT DEN 4 JANUARI 1949 -ins. den "/, 1946, FIF 4810/1946. HartiII en ritning. CLASS 51 c: 33 DESCRIPTION PUBLIC LAND BY KUNGL. PATENT AND REGISTRATION AUTHORITY APPLIED ON 4 NOVEMBER 1948 PATENT1D FROM 27 MAY 1946 PUBLISHED ON 4 JANUARY 1949 -ins. the "/, 1946, FIF 4810/1946. HartiII a drawing.

S. ANDERSEN, OSLO, NORGE. S. ANDERSEN, OSLO, NORWAY.

Mekanik for tangenter vid pianodragspel. Mechanics for keys in piano accordion.

Prioritet begiird Ira den 28 maj 1945 (Yorge). Priority was given to Ira on 28 May 1945 (Yorge).

Vid s. k. pianodragspel ãr det vanligt att tatningsklaff en (stingningsklaffen for biasoppningarna i ramen) sitter pa en vinkelarm, vars ena ande uppbar tangenten. Under spelningen hammer darfor tangenten att svanga from och tillbaka omkring derma havstangs widningsaxel, ocb. foljden Or att det tryck, som maste uthvas ph tangenten med avseende pa storleken Mir beroende av det stalle pa tangenten, varest fingret trycker p0 denna. Ju narmare -vridningsaxeln fingret trycker desto storre blir trycket. Detta kannes ofta sasom en olaglighet vid spetningen °eh undvikes enligt foreliggande uppfinning darigenom, alt tangenten Or forbunden med ramen medelst en parallellst3rrning, sa att samma eller i huvudsak samma tryck erfordras for oppnande av klaffen var heist trycket appliceras ph tangenten. Lampligtvis ernits denna rorelse genom all tangentens yttre ande Or ledbart forbunden direkt med den yttre anden av den tillhorande tatningsklaffens havstang, som narmare sin vridningspunkt an ledbart forbunden med en kortare havsthng nara dennas vridningspunkt, varjamte den sistnamnda havstangen vid sin fria ande Or ledbart Rirlounden med tangentens inre ande. In so-called piano accordion, it is common for the sealing flap (the stitching flap for the bias openings in the frame) to be located on an angle arm, one of the ends of which carries the key. During the performance, therefore, the key to swing from and back around this sea rod widening axis, ocb. the consequence Or that the pressure which must be exerted on the key with respect to the size Mir depending on the place on the key where the finger presses this. The closer the axis of rotation the finger presses, the greater the pressure. This can often be seen as an illegality at the tip and is avoided according to the present invention in that the key Or is connected to the frame by means of a parallel pitch, so that the same or substantially the same pressure is required to open the flap where the pressure is applied to the key. Lampligtvis ernits this movement through all the outer spirit of the tangent Or articulated directly with the outer spirit of the associated sea-going flap sea rod, which closer to its point of rotation than articulated connected to a shorter sea rod near its axis of rotation, the latter sea rod at its free spirit Or articulated the inner spirit of the tangent.

En utforingsform ftY uppfinningsforemdlet visas ph bifogade ritning sedd i vy fran sidan. 1 Or en del av dragspelets ram, 2 tatningsklaffen och 3, 4 den vinkelhavstang, sona uppbOr klaffen och som Or vridbar pa en tapp 5 i ett lagerstycke 6 pa ramen 1. Havarmens 4 yttre ande Or medelst en tapp 7 ledbart forbunden med en frail tangenten 9 neat utskjutande del 8 och Or narmare tappen 5 medelst en tapp 10 ledbart fOrbunden med den nedre Onden av en kort lank 11, vars ovre ande medelst en tapp 12 Or forbunden med en andra havstang 13. Denna har en fast vridningspunkt pa tap- pen 14 i ett annat lagerstycke 15 och Or vid sin yttre dude forsedd med en tapp 16 vid den nedre Linden av en kart lank 17, vars Ovre ande medelst en tapp 18 Or ledbart forbunden med tangentens 9 inre ande. Tappen 12 Egger i narheten av Lappen 14, och om de olika avstanden mellan tapparna for de tva haystangerna avpassas pa riktigt sat kommer tangenten 9 att utfora en parallellrorelse och konuner darfor att kunna roras upp ()eh ned med ett och samma tryck oberoende av del stalle pa tangenten, vid vilket detta tryck utovas. Om avstandet mellan tapparna 5 och 7 antagcs utgora a, avstandet mellan tapparna och 10 b, avstandet mellan tapparna 14 och 12 c och avstandet mellan tapparna 14 och 16 d, dr den ovan angivna betingelsen upp- fylld ()in a >: eb X d. An embodiment of the invention is shown in the accompanying drawing seen in side view. 1 Or part of the frame of the accordion, 2 the sealing flap and 3, 4 the angular sea rod, the zone supporting the flap and which Or is rotatable on a pin 5 in a bearing piece 6 on the frame 1. The outer spirit of the sea arm 4 is articulated by means of a pin 7 tangent 9 neatly projecting part 8 and closer to the pin 5 by means of a pin 10 hingedly connected to the lower end of a short length 11, the upper end of which by means of a pin 12 is connected to a second sea rod 13. This has a fixed pivot point on the pin. pin 14 in another bearing piece 15 and Or at its outer dude provided with a pin 16 at the lower linden of a map long 17, the upper spirit of which by means of a pin 18 is articulated to the inner spirit of the key 9. The pin 12 is located near the pin 14, and if the different distances between the pins of the two haystacks are adjusted correctly, the key 9 will perform a parallel movement and cones will therefore be able to be moved up () eh down with one and the same pressure regardless of part place on the key at which this pressure is exerted. If the distance between the pins 5 and 7 is assumed to be a, the distance between the pins and 10 b, the distance between the pins 14 and 12 c and the distance between the pins 14 and 16 d, then the above condition is fulfilled () in a>: eb X d.

SisISOBa ett exempel ma namnas att a kan utgora 140 mm, b 42 mm, c 9 mm och d 30 mm. SisISOBa an example may be mentioned that a can be 140 mm, b 42 mm, c 9 mm and d 30 mm.

En liten bladfjader 19 s5rjer fOr att mekanismen alltid aterfores till det visade vilolaget, vilket klaffen 2 tatar Over sin springa pa vanligt satt. A small leaf spring 19 ensures that the mechanism is always returned to the resting layer shown, which flap 2 takes over its gap in the usual way.

Claims

Patent claim: Afekanik for keys in piano accordion, wherein the transfer between the key and the flap arm takes place by means of sea rods as an intermediate joint, characterized in that the outer spirit of the key (9) is articulated directly to the outer spirit of the associated rod (2) sea rod (4). ), which is closer to its pivot point (5) or articulated - to a shorter sea rod (13) near its pivot point (14), the latter sea rod was at its free spirit or pivotally connected to the inner spirit of the tangent (9), so that the tangent p0 per se edge, Or was connected to the flap arm by means of a parallel guide. Stockholm 1948. Kong], Boktr. P. A. Norstult & StMer 480089