EP3281190A1 - Obturator for a hole in a wind instrument - Google Patents
Obturator for a hole in a wind instrumentInfo
- Publication number
- EP3281190A1 EP3281190A1 EP16719454.7A EP16719454A EP3281190A1 EP 3281190 A1 EP3281190 A1 EP 3281190A1 EP 16719454 A EP16719454 A EP 16719454A EP 3281190 A1 EP3281190 A1 EP 3281190A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bowl
- wall
- shutter
- instrument
- plate
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D9/00—Details of, or accessories for, wind musical instruments
- G10D9/04—Valves; Valve controls
- G10D9/047—Valves; Valve controls for wood wind instruments
Definitions
- the present invention relates primarily to the field of wind musical instruments, using keys to close their holes.
- saxophones, clarinets, flutes and bassoons have chimneys delimiting holes in their bodies.
- the pitch of the sound is a function of a specific combination of closed and open chimneys.
- the opening and closing of a chimney, therefore the associated hole, is provided by a key hinged to the body of the instrument.
- Each key includes a bowl in which is housed a buffer. The deformation of the buffer must ensure the tight closure of the hole by the key.
- the buffers currently used for saxophones are generally made of cardboard, cardboard type and a felt covered with a skin that envelops the whole. Each pad is pressed against a flat inner face of its respective bowl; it is crimped by a resonator through which presses it and allows to stretch the skin.
- the buffer When it is first fitted or replaced, the buffer is first placed in its respective bowl, and then the corresponding key is mounted on the body of the instrument. Once the buffer thus mounted, a sealing defect can be corrected by the factor only by mechanically deforming the bowl or its support until the buffer provides the desired seal with the corresponding chimney.
- a mechanical deformation of a key is obviously not desirable; in particular, it generates constraints in the metal of the key which, by relaxing, cause a further degradation of the seal.
- the instrument When a new instrument is manufactured, that the leak test meets the predefined quality criteria, the instrument is stored for an indefinite period, removed from storage and shipped to a point of sale where it is stored again for an indefinite period. During this time, the clogging may have lost its effectiveness and a customer can not assess the actual quality of the instrument he wants to buy. A point-of-sale technician must therefore maintain the instrument in order to ensure its proper functioning until it is actually sold. This interview has a detrimental cost.
- the buffers currently used have significant thickness irregularities which have the disadvantage of complicating the setting of the mechanism and give a questionable and unsightly appearance to the instrument.
- the thickness of the same buffer can vary by plus or minus 10%.
- the object of the invention is to propose a shutter which makes it possible to ensure a durable seal.
- such a shutter for a hole of a wind instrument intended to be mounted in the bowl of a key of said instrument, said bowl being disposed opposite said hole, is characterized in that it comprises a substantially rigid plate,
- said platen comprising:
- said skin being stretched between said inner wall and said outer wall.
- Such a shutter can be substantially of revolution about an axis.
- the plate may advantageously comprise an open bore through its face and provided for introducing a rod of the resonator.
- the bore may be through and open through a bottom of the plate, opposite to its face, the ball joint means comprising a boss formed on an open end of the rod of the resonator.
- the ball joint means may comprise a boss formed on the bottom of the plate.
- a method for mounting a shutter according to the invention in a bowl of a wind instrument key comprises:
- FIG. 1 is a diagrammatic representation in section of a first embodiment for a shutter according to the invention mounted on an instrument, the section being made along a plane transverse to the longitudinal axis of the instrument. ;
- FIG. 2 is a representation similar to that of Figure 1, wherein the shutter of Figure 1 is shown in isolation;
- FIG. 3 is a schematic representation in section of a second embodiment for a closure shutter according to the invention mounted on an instrument, the section being made along the longitudinal plane of the instrument;
- FIG. 4 is a representation similar to that of FIG. 3, in which the shutter of FIG. 3 is shown in isolation;
- FIG. 5 is an exploded representation of the section of Figure 1;
- FIG. 6 is an exploded view of a second embodiment for a shutter according to the invention.
- Figures 1, 2 and 5 illustrate a first embodiment for a shutter 1 for closing a hole of a wind musical instrument 2.
- Figure 1 is a section of the instrument 2 perpendicular to the longitudinal axis X3 of the tubular body 3 of the instrument. The section is made in a transverse plane PI, perpendicular to the longitudinal axis X3.
- a chimney 4 defines a hole 6 in the body 3, the chimney is cylindrical about a chimney axis X4; the chimney axis is in the PI plane of the Figure 1.
- the chimney extends from the body 3 outwards, it forms at its distal end a circular edge 5 intended to serve as a seat for a closure device, then called shutter 1.
- the support edge 5 is inscribed in a support plane P5 perpendicular to the chimney axis X4.
- the shutter 1 provides a metal key 7.
- the key 7 is articulated in rotation about a key axis X7, substantially parallel to the longitudinal axis X3.
- the key is substantially symmetrical relative to the plane PI of the figure.
- the key axis X7 is carried by a foot 8, rigidly fixed to the body 3 of the instrument 2 and extending substantially radially outwardly from the body 3.
- the key comprises an arm 9 forming a pivot with the foot 8.
- the arm carries a bowl 10 vis-à-vis the chimney 4, at one end of the arm opposite the pivot.
- the bowl is concave on the side facing the chimney 4.
- the bowl has a domed bottom 11, concave on the inside.
- the bowl further comprises a cylindrical peripheral wall 12 which extends from a peripheral edge of the bottom 11.
- the shutter 1 is removably disposed in the bowl 10, facing the chimney 4.
- the wall 12 is cylindrical about an axis substantially coincides with the chimney axis X4.
- the peripheral wall 12 forms with the bottom 11 an inner edge 13. This inner edge is in a plane P13; the edge plane P13 forms with the support plane P5, in the plane PI of Figure 1, an angle Al.
- the distal edge 14 of the peripheral wall 12 is in a plane parallel to the edge plane P13.
- the wall 12 has an inside diameter D12 that is clearly greater than the outside diameter D4 of the chimney 4.
- the shutter is fixed inside the bowl 10 by an adhesive, here a hot melt adhesive 16, disposed at the bottom of the bowl.
- an adhesive hot melt allows the repositioning of the shutter 1 when it is put in place, and its removal when it has to be changed.
- the shutter is substantially of revolution about an axis XI; He understands :
- the plate 21 is a substantially rigid piece, for example molded plastic. As particularly illustrated in FIG. 5, it forms an annular housing 26 designed to receive the felt 22. It also forms an axial bore 27 intended to receive the resonator 24.
- the housing 26 and the bore 27 are open through a front face 28 of the plate, this face 28 being provided to be disposed vis-à-vis the chimney 4, as shown in Figure 1.
- the housing is closed by the bottom 29 of the plate, its opposite side to the face 28.
- the bore 27 is closed by a bottom 29 of the plate.
- the annular housing 26 is defined between the bottom 29, a cylindrical inner side wall 34 and a cylindrical outer wall 30.
- the end face 28 consists of the end faces of the walls 34,30.
- the inner wall 34 constitutes a cylindrical wall for the bore 27.
- the skin 23 is disposed flat on the face 28 and folded around the plate, so that it is stretched between the inner wall 34 and the outer wall 30; it is pierced with an orifice to allow the passage of the resonator during its introduction into the bore 27.
- the felt 22, of annular shape, of rectangular radial section, fully fills the volume of the housing, between the bottom 29, the wall 34, the outer wall 30 and the skin 23. provision, the tension of the skin 23 between the walls 34,30 does not deform the felt 22. Indeed, in the devices of the prior art, the tension of the skin produces a peripheral crushing of the felt, so that the sealing is more difficult to obtain.
- the dimensions of the plate 21 are such that in the position of use illustrated in FIG. 1, the felt 22 in its housing 26 is opposite the bearing edge 5.
- the resonator 24 comprises a rod 31 and a head 32.
- the rod is provided to fit tightly into the bore 27, so that the resonator is held there stuck.
- the head 32 is provided to keep the skin pressed against the face 28 of the plate 21.
- the outer diameter D32 of the head is substantially equal to the outside diameter D4 of the inner wall 34 which separates the housing 26 from bore 27; thus, the skin is held pinched between the inner wall 34 and the head of the resonator 24.
- the outside diameter D21 of the plate 21 is chosen as a function of the inside diameter D10 of the bowl 10 so that a clearance J exists around the shutter 1, between the skin 23 and the wall 12 of the bowl.
- the bottom forms a substantially axial boss 36.
- the boss is curved, substantially spheroidal. It is intended to form a ball with the bottom 11 of the bowl.
- This method comprises:
- step four or five it suffices to lightly press the key, so that the shutter hugs the edge. 5 thanks to the ball action of the boss 36 against the bottom 11 of the bowl and the game J. In this way, the seal between the shutter and the chimney is formed optimally and reproducibly.
- the bore 27 is through, that is to say that it also opens through the bottom 29 of the plate 21.
- the rod 31 of the resonator is long enough for its distal end 38, opposite to the head 32, to open Beyond the bottom 29.
- the boss 36 is formed by this distal end.
- a shutter according to the invention makes it possible to overcome the recurring sealing problems known by the buffers of the prior art. It allows a shorter assembly and adjustment time of at least 60%. It also avoids deforming the metal of the key; the bowl remains in its initial position and the filling remains tight and constant.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Auxiliary Devices For Music (AREA)
- Stringed Musical Instruments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1552943A FR3034903B1 (en) | 2015-04-07 | 2015-04-07 | SHUTTER FOR A WIND INSTRUMENT HOLE. |
PCT/FR2016/050760 WO2016162620A1 (en) | 2015-04-07 | 2016-04-04 | Obturator for a hole in a wind instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3281190A1 true EP3281190A1 (en) | 2018-02-14 |
Family
ID=53514328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16719454.7A Withdrawn EP3281190A1 (en) | 2015-04-07 | 2016-04-04 | Obturator for a hole in a wind instrument |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3281190A1 (en) |
FR (1) | FR3034903B1 (en) |
WO (1) | WO2016162620A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB717902A (en) * | 1950-03-25 | 1954-11-03 | Percival Victor Kleinhenn | Improvements in or relating to valves for wind instruments |
US3421399A (en) * | 1967-08-08 | 1969-01-14 | Conn Ltd C G | Key pads for musical instruments |
FR2257973A1 (en) * | 1974-01-14 | 1975-08-08 | Parmenon Michel | Stop for musical wind instrument - is used on flute or saxophone and is fitted with foot oscillating about central point |
SE8700655D0 (en) * | 1987-02-18 | 1987-02-18 | Runar Grenfeldt | DEVICE IS A SK "PUT" FOR SEALING THE TONE OF SAXOPHONES AND SIMILAR INSTRUMENTS |
DE19936128A1 (en) * | 1999-07-31 | 2001-02-01 | Ralf Brenner | Sealing element mounted on closure valve for sound hole of woodwind instrument has stop-pin, base plate, and lining |
DE29913239U1 (en) * | 1999-08-04 | 2000-02-24 | Kodera Wolf | Pad for the flap of a wind instrument |
DE202011003107U1 (en) * | 2011-02-24 | 2011-05-12 | Beckenbach, Klaus | Closure element for closing a wind instrument tonal hole |
-
2015
- 2015-04-07 FR FR1552943A patent/FR3034903B1/en active Active
-
2016
- 2016-04-04 WO PCT/FR2016/050760 patent/WO2016162620A1/en active Application Filing
- 2016-04-04 EP EP16719454.7A patent/EP3281190A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR3034903A1 (en) | 2016-10-14 |
FR3034903B1 (en) | 2019-06-21 |
WO2016162620A1 (en) | 2016-10-13 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20171013 |
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AX | Request for extension of the european patent |
Extension state: BA ME |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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INTG | Intention to grant announced |
Effective date: 20190412 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20190823 |