Патент USA US2105365код для вставки
Jan. 11, 1938. 2,105,365 R. PANCOTTI ACCORDION Filed May 13, 1956 I , 5 5’ ROB E BY INVENTOR O P CO T T. RAW / M. [M ATTO R N EY Patented Jaa. 11, 193s . 2,105,365 l UNITED STATE S >PA'rEN'r ori-fica 2,105,365 AOCORDION Roberto Pancotti, Nutley, N. J., assignor to Ex; ceisior Accordion Manufacturing Co. Inc., New York, N. Y. Application May 13, 1936, Serial No. 79,424 L 4 claims. The present invention relates to musical in struments, and more particularly to accordions. In accordions as heretofore constructed, the valvev and sound chambers or heads havefsharp or square corners formed »by joining together the side and end walls of said chambers at right angles to each other. Similarly in such accordi ons the bellows have sharp corners conforming to the contour of the walls of -the sound chambers or heads of the accordion. I have found that the tonal qualities of the accordion are greatly improved when the walls of the soundy chamber, instead of being joined at right angles, are pro vided with well rounded corners or curved por tions. ’The provision of rounded corners in the bellows in conformity with the rounded corners of the valve and sound chambers or heads also contributes to the improvement of the tonal qual ities of the instrument and further results in quickertone response to the movement of the bellows. The tone produced in the playing of accordions having rounded corners in accordance ' with the present invention has greater richness Fig. 5 is a view similar to Fig. 2, showing a modification; Fig. 6 is a sectional view on the line 6--6 of Fig. 5. Referring to the drawing, the accordion, indi- 5 cated generally by the reference numeral III, comprises the usual keyboards I2 and I 4, the bel lows I6 and two valve and sound chambers 'or heads I8 and '20 adjacent said keyboards I2 and I4, respectively, on opposite sides of the bellows. 10 In accordance with the usual construction of ac cordions a reed »and valve block 22 is mounted within the valve and sound chamber I8 and slm- . ilarly a reed and valve block 24 is mounted with in the sound and valve chamber 20. The valve 15 and sound chamber I8 is defined by side walls 26 and 28 and by end walls 30. The other valve and sound chamber 20 is similarly defined by side walls 32 vand 34 and by end walls 36. As clearly shown in Figs. 2 and 3, the end and side walls of said chambers I8 and 20 do not meet each other at right angles, but merge into each other at their adjacent end portions along and in this and other respects is more pleasing well rounded curved lines forming instead of than the tone of the square corner accordions right angular corners, as in the prior art con such as those which were conventional prior to -structions, internal and external well rounded my invention. The provision of an accordion corners or curved portions 38 and 40 in the chambers I8 and 20, respectively. Also, as clear of improved tonal qualities and which has a sub stantially instantaneous tone response to the ly shown in Figs. 2 and 3, said side and end walls 30 30 movement of the bellows are primary objects of of both sound chambers are formed respectively from continuous strips of material, such as wood, the present invention. A further object of the invention is to improve bent into the configuration shown to provide the the construction ofthe bellows whereby the life chamber defining walls with well rounded end thereof may be lengthened. This is accomplished portions .and joined at their meeting ends 42 ' in accordance with the present invention by the and 44, respectively, here shown positioned mid, provision of rounded corners in the bellows which way of the side walls 26 and 34 of the sound 40 bellows that contribute to the failure or break chambers I8 and 20, respectively. By reason of this `construction, the plurality of joints hereto fore required in instruments of this character .are eliminated. The sound chambers I8 and 20 down thereof. The above objects of the invention and other objects which might hereinafter appear will be which may be of any preferred or conventional construction which, while permitting the emis results in deep bellows folds whereby to improve . the tone response to the movement of the bellows and to reduce the strains and movement of the - fully understood from the following description “ considered with reference to the accompanying are provided with covers I9 and 2|, respectively, 'sion of sound, exclude dust and serve also as or namental elements for the accordion. - The bellows I6 may be of any usual construc tion, but for better results in the playing of the Fig. l is a perspective view of an. accordion embodying the present invention; Fig. 2 is a sectional view on the line 2-`-2 of Fig. l; Fig. 3 is a sectional view on the line 34-3 of Fig. l; Fig. 4 is a sectional view on the line 4-4 of Fig. 1; instrument and in order to harmonize with the appearance of the sound chambers I8 and 20, ~said bellows preferably conform in peripheral configuration to the peripheral contour of the .sound and valve chambers I8 and 20. Thus, as shown in Fig. 4, the side walls 46 and the end walls 48 of the bellows have rounded corner or curvedfwall portions Il in conformity with the 4 2 2,105,365 rounded portions 38 and 40 of the sound cham bers i8 and 20. l In the form of the invention illustrated in Figs. 5 and 6, the sound chambers in communi cation with the bellows may comprise, as in thel prior art constructions, side walls 5| and end walls 52, which are joined together at their meet ing ends forming right angular corner portions. As here shown, however, a filler member 54 is positioned interiorly of the sound chamber at each corner portion thereof thus forming an in ternal rounded corner. 15. Said filler members are substantially triangular in cross section, having angularly related outer surfaces 56 and 58 and an inner surface 5D which is preferably curved. Said ?ller members are set into recesses 52 and 84 formed in the side and end walls 5| and 52, respectively, at each corner portion of the sound chamber so that the curved surface of the wall 60 is continuous with the inner surfaces of the companion end and side walls of the sound cham ber. In this form of the invention, the valve and reed block 23 is illustrated more or less conven tionally as is the case with the valve and reed blocks 22 and 24 in the form oi the invention shown in Figs. 2 and 3, it being understood that the present invention is not concerned with the ‘ details of construction of the accordion or any parts thereof other than the sound chambers and It will be further understood that in 30 bellows. the construction illustrated in Figs. 5 and 6, the bellows instead of having rounded corner por tions, asin the constructions illustrated in Fig. l, have their side and end walls in right angular 35 relation as in the prior art constructions. Thus, it is seen that the constructions herein shown and described are well adapted to accom plish the ‘several objects of the present invention. However, it will be understood, especiallyl in con nection with the form ofthe invention illustrated AinFigs. 1 to 4, that the peripheral configuration of the body of the accordion, including the bel lows and valve and sound chambers, is such that said body is free of sharp corners or other abrupt edges and on this account the accordion may be held against the player’s body with considerable more comfort than was heretofore the case. It Will be understood, however, that while I have shown several embodiments of my invention, in 50 cluding the'one which I prefer, nevertheless, the invention is capable of other embodiments and that certain changes in the construction and ar rangement of parts may be made in the forms of the invention herein illustrated. Accordingly, I do not wish to be limited to the precise construc 5 tions herein shown or described, except as may be required by the appended claims considered with reference to the prior art. Having described my invention, what I claim and desire to secure by Letters Patent is: l. An accordion comprising a bellows and a valve and sound chamber in communication therewith, said chamber comprising side and end walls having their adjacent portions at both ends and sides of the chamber merged into each other along curved lines forming curved wall portions or rounded corners at the ends and sides oi said chamber, 2_. An'accordion comprising a bellows and a valve and sound chamber in communication therewith, said chamber comprising side and end walls having their adjacent portions at both ends and sides of the chamber merged into each other along curved lines forming curved wall portions or rounded corners at the ends and sides of said chamber, said bellows also having rounded cor ners and conforming substantially to the contour of said side and end walls. 3. An accordion comprising a bellows and a valve and sound chamber in communication 30 therewith, said chamber comprising side and end walls having their adjacent portions at both ends and sides of the chamber interiorly thereof merged into each other along curved lines form ing curved wall portions or rounded corners at ' the ends and sidesof said chamber interiorly thereof. 4. An accordion comprising a bellows and a ' valve and sound chamber in communication therewith, said chamber comprising side and end walls having their adjacent portions at both ends and sides of the chamber interiorly thereof merged into each other along curved lines form ing curved wall portions or rounded corners at the ends and sides of said“ chamber interiorly thereof, said bellows also having rounded corners and conforming substantially to the contour of said side and end walls. RQBERTO PANCO'I‘I‘I.