US3421399A - Key pads for musical instruments - Google Patents

Key pads for musical instruments Download PDF

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Publication number
US3421399A
US3421399A US659110A US3421399DA US3421399A US 3421399 A US3421399 A US 3421399A US 659110 A US659110 A US 659110A US 3421399D A US3421399D A US 3421399DA US 3421399 A US3421399 A US 3421399A
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United States
Prior art keywords
pad
cup
opening
key
edge
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Expired - Lifetime
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US659110A
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Leland B Greenleaf
James Timothy Bryant
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Mardan Corp
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Conn Ltd C G
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Assigned to MARDAN CORP., A CORP. OF IND. reassignment MARDAN CORP., A CORP. OF IND. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: C.G. CONN. LTD.,
Assigned to CITICORP INDUSTRIAL CREDIT, INC. reassignment CITICORP INDUSTRIAL CREDIT, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MARDAN CORP.
Assigned to GENERAL ELECTRIC CREDIT CORPORATION reassignment GENERAL ELECTRIC CREDIT CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MARDAN CORP.
Assigned to MARDAN CORP., AN IN CORP. reassignment MARDAN CORP., AN IN CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CITICORP INDUSTRIAL CREDIT, INC.
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    • 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 sealing surface 'of the pad be accurately aligned with the edge of the tone opening to completely close the opening.
  • Various pivotal mounting structures have been provided for the pads to provide such alignment, but in these structures the pad can be easily moved out of the aligned position.
  • the key pads have been secured in the cup supporting member by plastic material such as wax, and although this material when soft permits movements of the pad for alignment, it is difficult to accurately align the pad at the proper position in the cup so that it can be held in such position by the wax.
  • a further object is to provide a key pad for a musical instrument with a pivotal arrangement permitting the pad to rock in the supporting cup and with plastic material holding the pad in aligned position during repeated use.
  • a key pad for a musical instrument, such as a saxophone, for closing a tone opening in the body of the instrument.
  • the pad is supported in a cup-shaped member attached to an arm pivotally mounted on the body of the instrument.
  • Engagement between the pad and the cup is provided by a portion which permits the pad to rock in the cup so that the sealing surface thereof can be accurately aligned with the edge of the tone opening.
  • Plastic material is positioned between the pad and the cup to hold the pad in the aligned position so that it will remain in fixed position after repeated use.
  • FIG. 1 illustrates the pad and support of the invention "ice on the body of a musical instrument having at one opening;
  • FIG. 2 is the cross sectional view of the pad of FIG. 1;
  • FIGS. 3, 4, 5 and 6 show alternate embodiments of the pad construction of the invention.
  • FIG. 1 there is illustrated a portion of the body 10 of a musical instrument, which may be a wood wind instrument such as a saxophone.
  • the body 10 is made of metal, plastic or wood and has an opening 11 therein with an edge 12 extending in a single plane.
  • a pad 15 is provided for engaging the edge 12 to close the opening 11.
  • the pad has a surface 16 for engaging the edge 12 formed of fish skin, leather, or synthetic material which may be of known construction.
  • the pad has a support plate 17 on the opposite side having a generally conical extension 18 at the center thereof.
  • the support plate 17 and extension 18 may be integrally formed of metal or molded plastic.
  • the tone openings and pads therefor are commonly round, but can be of any desire-d configuration.
  • the cup shaped member 20 for receiving the pad 15 is attached to a pivot arm 21.
  • the arm is pivoted on pin 22 secured to a post 23 mounted to the body 10 of the instrument.
  • a lever system may be provided for moving the arm 21, or the cup 20 may be engaged by the fingers of the musician to actuate the arm.
  • a spring may be used to hold the arm outward of the body so that the pad 15 is spaced from the edge 12 and the opening is not covered.
  • the conical projecting portion 18 extending from the pad supporting plate 17 rests in a socket 25 in the cup shaped member 20, and can rock therein, so that the sealing surface 16 of the pad can be tilted to be accurately aligned with the edge 12 of the tone opening when the pad is in engagement therewith.
  • the material of the surface of the pad has some resilience to compensate for minor irregularities in the edge 12 of the opening.
  • Plastic bonding material 30 is positioned in the cup 20 and fills the space between the back plate 17 of the pad and the cup shaped member 20.
  • This plastic material may be any known material such as shellac, wax or a hot-melt adhesive which can be applied in a pliable plastic form and which hardens to hold the pad in fixed position within the cup 20.
  • the plastic material must harden at normal temperatures encountered to hold the pad in fixed position in the cup.
  • the plastic material should soften at a temperature somewhat above that encountered in normal use so that the pad can be re-aligned if necessary by heating the plastic material.
  • FIG. 3 shows a construction wherein a post or stud 32 having a rounded end is used in place of the conical portion 18.
  • the post 32 is secured to the back plate 17 of the pad, and plastic bonding material 30 in the space between the plate 17 and the cup 20 hardens at normal temperatures encountered to hold the pad in fixed position within the cup.
  • FIG. 4 shows a different embodiment wherein a ball 34 is used to provide the rocking engagement, which is not secured to either the supporting plate 17 of the pad or to the cup shaped member 20.
  • the ball can be mounted to either the plate 17 or to the cup 20 and still provide the self-aligning action.
  • FIG. 5 shows a construction wherein a post 36 is secured to the cup member 20 at the center of the bottom thereof.
  • the plate 17 engages the rounded edge of the post 36 to permit tilting of the pad 15 for aligning the same with the edge of the tone openings.
  • a threaded stud or screw 40 is secured into a tapped boss 41 secured to the bottom of the cup 20 at the center thereof.
  • the screw 40 extends through an opening in the pad 15 and has a head with a rounded back surface 42 which co-operates with a complementary rounded surface on the pad. This permits the pad 15 to rock about the head of the screw so that the surface 16 can be aligned with the edge of the tone opening.
  • Plastic material 30 is positioned between the back plate 17 of the pad and the cup 20 which will initially be soft so it can flow for alignment of the pad, and which hardens at normal operating temperatures to hold the pad in fixed position.
  • the construction of the invention includes a pivotal connection between the pad and the supporting cup which facilitates alignment of the pad, while holding the pad at the desired position within the cup.
  • the plastic material between the pad and the cup allows the pad to be tilted and then holds the pad in fixed position. This construction makes it much easier to accurately position the pad than a construction wherein there is no pivotal engagement between the pad and the cup, and the plastic material is compressed by the aligning engagement and tends to work out about the edges of the pad.
  • the plastic material is pliable and flows slightly to permit adjustment of the pad. The material then hardens to prevent unintended movement of the pad which can take place when a pivotal mounting is used alone.
  • a musical instrument having a body with a tone opening therein, a key pad for covering said opening including in combination, a cup member, means for I pivotally mounting said cup member on the body of the instrument, a pad having a surface on one side thereof for engaging the edge of the tone opening for closing the same, means on the other side of said pad in engagement with said cup member to facilitate positioning said pad at various angular positions withrespectto said cup member, and plastic material positioned between said pad and is pliable at a temperature above room temperature 7 to facilitate alignment of said surface of said pad.
  • a key pad in accordance with claim 1 including a projection extending from said other side of said pad into engagement with said cup member.
  • a key pad in accordance with claim 1 including a ball positioned between said other side of said pad and said cup member.
  • a key pad in accordance with claim 1 including a post. secured to said cup member and having a rounded surface engaging said other side of said pad.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Description

Jan. 14, 1969 GREENLEAF ET AL 3,421,399
KEY PADS FOR MUSICAL INSTRUMENTS Filed Aug. 8, 1967 IVLUGYLZUTSIJ lelandfi Green/Zeal, James]? moQyBrz a M 7 17 (22226.
United States Patent 3,421,399 KEY PADS FOR MUSICAL INSTRUMENTS Leland B. Greeuleaf, Elkhart, and James Timothy Bryant, Goshen, Ind., assignors to C. G. Conn Ltd., Elkhart, Ind., a corporation of Indiana Filed Aug. 8, 1967, Ser. No. 659,110 US. Cl. 84-380 Int. 'Cl. Gd 7/00 7 Claims ABSTRACT OF THE DISCLOSURE Background 0 the invention Key pads are used to cover tone openings in the body of musical instruments, such as saxophones, to control the effective length of the instruments to thereby determine the frequency of the musical tone produced thereby. Such pads are supported in cup members attached to arms pivotally mounted on the body of the instrument. A lever mechanism may be used for operating the arm, or the back of the cup member may be directly engaged by the musician playing the instrument.
It is desired that the sealing surface 'of the pad be accurately aligned with the edge of the tone opening to completely close the opening. Various pivotal mounting structures have been provided for the pads to provide such alignment, but in these structures the pad can be easily moved out of the aligned position. The key pads have been secured in the cup supporting member by plastic material such as wax, and although this material when soft permits movements of the pad for alignment, it is difficult to accurately align the pad at the proper position in the cup so that it can be held in such position by the wax.
Summary of the invention It is an object of the present invention to provide a key pad structure which facilitates the alignment of a pad in its supporting cup and wherein the pad is held in the desired aligned position.
A further object is to provide a key pad for a musical instrument with a pivotal arrangement permitting the pad to rock in the supporting cup and with plastic material holding the pad in aligned position during repeated use.
In practicing the invention a key pad is provided for a musical instrument, such as a saxophone, for closing a tone opening in the body of the instrument. The pad is supported in a cup-shaped member attached to an arm pivotally mounted on the body of the instrument. Engagement between the pad and the cup is provided by a portion which permits the pad to rock in the cup so that the sealing surface thereof can be accurately aligned with the edge of the tone opening. Plastic material is positioned between the pad and the cup to hold the pad in the aligned position so that it will remain in fixed position after repeated use.
Brief Description of the drawings The invention is illustrated in the drawings wherein: FIG. 1 illustrates the pad and support of the invention "ice on the body of a musical instrument having at one opening;
FIG. 2 is the cross sectional view of the pad of FIG. 1;
and
FIGS. 3, 4, 5 and 6 show alternate embodiments of the pad construction of the invention.
Detailed description of the preferred embodiment In FIG. 1 there is illustrated a portion of the body 10 of a musical instrument, which may be a wood wind instrument such as a saxophone. The body 10 is made of metal, plastic or wood and has an opening 11 therein with an edge 12 extending in a single plane. A pad 15 is provided for engaging the edge 12 to close the opening 11. The pad has a surface 16 for engaging the edge 12 formed of fish skin, leather, or synthetic material which may be of known construction. The pad has a support plate 17 on the opposite side having a generally conical extension 18 at the center thereof. The support plate 17 and extension 18 may be integrally formed of metal or molded plastic. The tone openings and pads therefor are commonly round, but can be of any desire-d configuration.
The cup shaped member 20 for receiving the pad 15 is attached to a pivot arm 21. The arm is pivoted on pin 22 secured to a post 23 mounted to the body 10 of the instrument. A lever system may be provided for moving the arm 21, or the cup 20 may be engaged by the fingers of the musician to actuate the arm. A spring may be used to hold the arm outward of the body so that the pad 15 is spaced from the edge 12 and the opening is not covered.
As shown in FIGS. 1 and 2, the conical projecting portion 18 extending from the pad supporting plate 17 rests in a socket 25 in the cup shaped member 20, and can rock therein, so that the sealing surface 16 of the pad can be tilted to be accurately aligned with the edge 12 of the tone opening when the pad is in engagement therewith. By providing such tilting movement, inaccuracies in the construction of the various parts can be compensated for. The material of the surface of the pad has some resilience to compensate for minor irregularities in the edge 12 of the opening.
Plastic bonding material 30 is positioned in the cup 20 and fills the space between the back plate 17 of the pad and the cup shaped member 20. This plastic material may be any known material such as shellac, wax or a hot-melt adhesive which can be applied in a pliable plastic form and which hardens to hold the pad in fixed position within the cup 20. The plastic material must harden at normal temperatures encountered to hold the pad in fixed position in the cup. Preferably the plastic material should soften at a temperature somewhat above that encountered in normal use so that the pad can be re-aligned if necessary by heating the plastic material.
FIG. 3 shows a construction wherein a post or stud 32 having a rounded end is used in place of the conical portion 18. The post 32 is secured to the back plate 17 of the pad, and plastic bonding material 30 in the space between the plate 17 and the cup 20 hardens at normal temperatures encountered to hold the pad in fixed position within the cup.
FIG. 4 shows a different embodiment wherein a ball 34 is used to provide the rocking engagement, which is not secured to either the supporting plate 17 of the pad or to the cup shaped member 20. Alternately the ball can be mounted to either the plate 17 or to the cup 20 and still provide the self-aligning action.
FIG. 5 shows a construction wherein a post 36 is secured to the cup member 20 at the center of the bottom thereof. The plate 17 engages the rounded edge of the post 36 to permit tilting of the pad 15 for aligning the same with the edge of the tone openings.
In FIG. 6 a threaded stud or screw 40 is secured into a tapped boss 41 secured to the bottom of the cup 20 at the center thereof. The screw 40 extends through an opening in the pad 15 and has a head with a rounded back surface 42 which co-operates with a complementary rounded surface on the pad. This permits the pad 15 to rock about the head of the screw so that the surface 16 can be aligned with the edge of the tone opening. Plastic material 30 is positioned between the back plate 17 of the pad and the cup 20 which will initially be soft so it can flow for alignment of the pad, and which hardens at normal operating temperatures to hold the pad in fixed position.
The construction of the invention includes a pivotal connection between the pad and the supporting cup which facilitates alignment of the pad, while holding the pad at the desired position within the cup. The plastic material between the pad and the cup allows the pad to be tilted and then holds the pad in fixed position. This construction makes it much easier to accurately position the pad than a construction wherein there is no pivotal engagement between the pad and the cup, and the plastic material is compressed by the aligning engagement and tends to work out about the edges of the pad. In the construction of the invention the plastic material is pliable and flows slightly to permit adjustment of the pad. The material then hardens to prevent unintended movement of the pad which can take place when a pivotal mounting is used alone.
We claim: I
1. A musical instrument having a body with a tone opening therein, a key pad for covering said opening including in combination, a cup member, means for I pivotally mounting said cup member on the body of the instrument, a pad having a surface on one side thereof for engaging the edge of the tone opening for closing the same, means on the other side of said pad in engagement with said cup member to facilitate positioning said pad at various angular positions withrespectto said cup member, and plastic material positioned between said pad and is pliable at a temperature above room temperature 7 to facilitate alignment of said surface of said pad.
3. A key pad in accordance with claim 1 including a projection extending from said other side of said pad into engagement with said cup member.
4. A key pad in accordance with claim 3 in which said projection is of a generally conical Configuration.
5. A key pad in accordance with claim 1 including a ball positioned between said other side of said pad and said cup member.
6. A key pad in accordance with claim 1 including a post. secured to said cup member and having a rounded surface engaging said other side of said pad.
7. A key pad in accordance with claim 1 wherein said pa d has a opening therein, and including a screw extending through said opening and a stud for receiving said screw securedto said cup member, said screw having a head with a rounded back surface and said pad having a complementary rounded surface cooperating therewith to permit rocking movement of said pad with respect to said cup.
' References Cited UNITED STATES PATENTS 1,786,833 12/1930 Dytch 84-385 x RICHARD B. WILKINSON, Primary Examiner. J. F. GONZALES, Assistant Examiner.
U.S. Cl. X.R. 84-385
US659110A 1967-08-08 1967-08-08 Key pads for musical instruments Expired - Lifetime US3421399A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688633A (en) * 1969-06-23 1972-09-05 Nippon Musical Instruments Mfg Tone hole covering assembly for a wood-wind musical instrument
US3691892A (en) * 1969-09-01 1972-09-19 Nippon Musical Instruments Mfg Method for assembling tone hole closing means of wood-wind musical instruments and a construction of the means assembled thereby
US3767506A (en) * 1972-01-06 1973-10-23 Nippon Musical Instruments Mfg Method for assembling tone hole covering in wood-wind musical instrument
US4453444A (en) * 1982-02-03 1984-06-12 Valentino Pete P Key pads
FR2703178A1 (en) * 1993-03-26 1994-09-30 Melan Denis Buffer for wind musical instrument fireplace.
US6326533B1 (en) * 1999-10-05 2001-12-04 Wolf Kodera Joining element, and wind instrument with such joining element
EP1388843A2 (en) * 2002-08-07 2004-02-11 Yamaha Corporation Woodwind instrument equipped with pad sealing mechanism automatically adjustable to tone hole
US20050235807A1 (en) * 2004-04-22 2005-10-27 Kraus Edward O Musical instrument pad
WO2013127797A1 (en) 2012-02-27 2013-09-06 Uesawa Haruo Disk for stabilising a pad of a musical wind instrument, production method thereof, counter piece to be used in the production method, and musical wind instrument provided with the stabilising disk
DE102013005958A1 (en) 2013-04-06 2014-10-23 Jürgen Lashöfer Valve seal for musical instruments
WO2016162620A1 (en) * 2015-04-07 2016-10-13 Jl Manufacture D'instruments De Musique Et Prestations Liees Obturator for a hole in a wind instrument
US9583078B1 (en) * 2016-03-18 2017-02-28 Kanichi Nagahara Pad assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1786833A (en) * 1928-06-04 1930-12-30 Dytch Harry Musical wind instrument

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1786833A (en) * 1928-06-04 1930-12-30 Dytch Harry Musical wind instrument

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688633A (en) * 1969-06-23 1972-09-05 Nippon Musical Instruments Mfg Tone hole covering assembly for a wood-wind musical instrument
US3691892A (en) * 1969-09-01 1972-09-19 Nippon Musical Instruments Mfg Method for assembling tone hole closing means of wood-wind musical instruments and a construction of the means assembled thereby
US3767506A (en) * 1972-01-06 1973-10-23 Nippon Musical Instruments Mfg Method for assembling tone hole covering in wood-wind musical instrument
US4453444A (en) * 1982-02-03 1984-06-12 Valentino Pete P Key pads
FR2703178A1 (en) * 1993-03-26 1994-09-30 Melan Denis Buffer for wind musical instrument fireplace.
WO1994023417A1 (en) * 1993-03-26 1994-10-13 Denis Melan Pad for the holes of wind instruments
US6326533B1 (en) * 1999-10-05 2001-12-04 Wolf Kodera Joining element, and wind instrument with such joining element
EP1388843A3 (en) * 2002-08-07 2006-09-27 Yamaha Corporation Woodwind instrument equipped with pad sealing mechanism automatically adjustable to tone hole
EP1388843A2 (en) * 2002-08-07 2004-02-11 Yamaha Corporation Woodwind instrument equipped with pad sealing mechanism automatically adjustable to tone hole
US20050235807A1 (en) * 2004-04-22 2005-10-27 Kraus Edward O Musical instrument pad
US7468479B2 (en) 2004-04-22 2008-12-23 Edward Otto Kraus Musical instrument pad
WO2013127797A1 (en) 2012-02-27 2013-09-06 Uesawa Haruo Disk for stabilising a pad of a musical wind instrument, production method thereof, counter piece to be used in the production method, and musical wind instrument provided with the stabilising disk
EP3098809A1 (en) 2012-02-27 2016-11-30 Uesawa, Haruo Disk for stabilising a pad of a musical wind instrument
US9558725B2 (en) 2012-02-27 2017-01-31 Haruo UESAWA Disk, wind instrument, counter piece, and method of producing the disk
DE102013005958A1 (en) 2013-04-06 2014-10-23 Jürgen Lashöfer Valve seal for musical instruments
WO2016162620A1 (en) * 2015-04-07 2016-10-13 Jl Manufacture D'instruments De Musique Et Prestations Liees Obturator for a hole in a wind instrument
FR3034903A1 (en) * 2015-04-07 2016-10-14 Jl Mft D'instruments De Musique Et Prestations Liees SHUTTER FOR A WIND INSTRUMENT HOLE.
US9583078B1 (en) * 2016-03-18 2017-02-28 Kanichi Nagahara Pad assembly

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