US20050100426A1 - Quick release nut assembly for percussion instrument - Google Patents

Quick release nut assembly for percussion instrument Download PDF

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Publication number
US20050100426A1
US20050100426A1 US10/704,822 US70482203A US2005100426A1 US 20050100426 A1 US20050100426 A1 US 20050100426A1 US 70482203 A US70482203 A US 70482203A US 2005100426 A1 US2005100426 A1 US 2005100426A1
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United States
Prior art keywords
main
threaded shaft
wing
internal
locking
Prior art date
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Granted
Application number
US10/704,822
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US6884015B1 (en
Inventor
Akito Takegawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pearl Musical Instrument Co
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Pearl Musical Instrument Co
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Priority to US10/704,822 priority Critical patent/US6884015B1/en
Assigned to PEARL MUSICAL INSTRUMENT CO. reassignment PEARL MUSICAL INSTRUMENT CO. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TAKEGAWA, AKITO
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Publication of US6884015B1 publication Critical patent/US6884015B1/en
Publication of US20050100426A1 publication Critical patent/US20050100426A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B37/00Nuts or like thread-engaging members
    • F16B37/08Quickly-detachable or mountable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut
    • F16B37/0807Nuts engaged from the end of the bolt, e.g. axially slidable nuts
    • F16B37/0864Nuts engaged from the end of the bolt, e.g. axially slidable nuts with the threaded portions of the nut engaging the thread of the bolt by pressing or rotating an external retaining member such as a cap, a nut, a ring or a sleeve
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10DSTRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
    • G10D13/00Percussion musical instruments; Details or accessories therefor
    • G10D13/01General design of percussion musical instruments
    • G10D13/06Castanets, cymbals, triangles, tambourines without drumheads or other single-toned percussion musical instruments

Abstract

An adjustable nut comprises a main body having an axial passageway and a locking insert. First and second wing members are pivotally mounted to the main body, whereby the wing members include respective cam surfaces that deflect the inner surface of the locking insert toward the threaded shaft. The assembly provides three different mounting arrangements. The first and second wing members are adapted to provide (1) a locking position where the main body is immovably locked to the threaded shaft, (2) an adjustment position where the first wing member is in the locking position and the second wing member is in an unlocking position to permit selective adjustment of the main body with respect to the threaded shaft, and (3) a sliding position where the first and second wing members are in an unlocking position to permit the main body to slide axially along the threaded member.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates generally to fastening devices, and, more particularly, the invention relates to adjustable nuts for use on threaded shafts such as those found on drum sets having cymbals.
  • 2. Description of Related Art
  • A drum set is a group of separate percussion instruments which often includes one or more cymbals. The general arrangement for mounting a cymbal onto a drum or other suitable support includes a rod or post which terminates at its upper extremity in a reduced threaded end portion over which the cymbal is fitted and secured in place by a washer and wing nut or other suitable fastening and retaining means.
  • In a typical mounting arrangement, a washer-like rounded metal disc or cup is fitted against a small shoulder on the threaded post. A felt washer or pad rests on the cup. The post is covered by a rubber or plastic sleeve. The central hole of the cymbal is fitted over the post around the sleeve, and the cymbal rests above the felt pad, supported by the metal cup. A felt washer or pad is positioned over the post above the cymbal, and a wing nut is screwed down against the spacing washer. This operation is then repeated for each cymbal. FIG. 16 shows a conventional seat cup arrangement featuring metal seat cup 1, separate sleeve 2, felt members 3 and wingnut 4 which are mounted to a threaded post 5. The cymbal is disposed between the felt members 3.
  • With particular regard to the cymbal set, the aforementioned wing nut is tightened down over the felt washer to keep the cymbal from flying off the stand when hit. How tightly the wing nut is tightened determines how freely it moves when hit. Some players like cymbals to move freely therefore they keep the wing nut loose. Others prefer their cymbals to be “firmer” thus they keep the wing nut tighter. Looser cymbals are able to resonate more freely than tighter cymbals therefore another use of the wing nut is to control the amount of resonance of the cymbal.
  • Another problem encountered in breaking down and reassembling drum sets is an amount of time the setting up and breaking down the drum set consumes. When performing before audiences, there are often two or more consecutive musical bands who perform in sequence. After a first band plays, the drum set must be disassembled and removed from the stage in order that the second band can then set up their drum set and begin playing. This is time consuming and interrupts a rhythm of the concert.
  • Accordingly, the need exists for an adjustable nut which can be placed on a threaded shaft, and subsequently removed, easily and rapidly.
  • SUMMARY OF THE INVENTION
  • The present invention is directed to a quick release nut assembly to overcome the aforementioned drawbacks inherent in the prior art.
  • The invention provides an adjustable nut for use with a threaded shaft, where the adjustable nut comprises a main body having an axial passageway through which the threaded shaft is adapted to pass. A locking insert is fitted to the main body. First and second wing members are pivotally mounted to the main body adjacent the locking insert, whereby the wing members include respective cam surfaces acting on the locking insert toward the axial passageway. The cam surfaces are adapted to deflect an inner surface of the locking insert toward the threaded shaft. The assembly provides three different mounting arrangements. The first and second wing members are adapted to provide (1) a locking position where the main body is immovably locked to the threaded shaft, (2) an adjustment position where the first wing member is in the locking position and the second wing member is in an unlocking position to permit selective adjustment of the main body with respect to the threaded shaft, and (3) a sliding position where the first and second wing members are in an unlocking position to permit the main body to slide axially along the threaded member.
  • The pivoting wing members lock and unlock the wingnut to a threaded post depending on the orientation of the wings. When the wings are open (unlocking position), the wingnut easily slides past the threads of a threaded post. The wingnut does not have to be spun like conventional wingnuts thus attachment and removal is quick and easy. When the wings are closed (locking position), an engagement means grips the wingnut firmly onto the threads of a threaded post. With one wing open and one wing closed, the wingnut is partially engaged onto the threads of a threaded post and can be rotated to adjust the tightness of the wingnut.
  • These and other new and useful features of the present invention will become apparent with reference to the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an exploded view of the major components of the wingnut assembly.
  • FIG. 2 is a side view of the wingnut assembly according to the present invention in the open position.
  • FIG. 3 is a perspective view of the wingnut assembly in the closed position.
  • FIG. 4 shows an isolate view of the main body and sleeve.
  • FIG. 5 is a top view of the main body and sleeve.
  • FIG. 6 is a cross sectional view of the main body taken along section line VI-VI of FIG. 4.
  • FIG. 7 is a cross sectional view of the main body taken along section line VII-VII of FIG. 4.
  • FIGS. 8A and 8B illustrate isolated views of the wing members of the invention.
  • FIG. 9 is a side view of the locking insert.
  • FIG. 10 is a top view of the locking insert.
  • FIG. 11 is a cross sectional view of the locking insert 15 taken along section line XI-XI of FIG. 10.
  • FIG. 12 is a view of the locking insert and wing members shown mounted to a cymbal post with the main body omitted for clarity.
  • FIG. 13 is a view of the wingnut assembly shown mounted to a cymbal post in the locking position.
  • FIG. 14 is a view of the wingnut assembly shown mounted to a cymbal post in the adjustment position.
  • FIG. 15 is a view of the wingnut assembly shown mounted to a cymbal post in the sliding position.
  • FIG. 16 is a conventional mounting arrangement for a cymbal.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • FIG. 1 is an exploded view of the wingnut assembly according to the present invention showing the main body 10, the locking insert 15, and the first and second wing members 20, 30. As will be described in greater detail below, the locking insert 15 is inserted into a window formed in the main body 10 in the direction of arrow ‘A’, then the wing members 20, 30 are inserted between the main body 10 and locking insert 15 (see arrow ‘B’) to thereby straddle the arms 15 a, 15 b. The apertures 21, 31 of the wing members 20, 30 are aligned with the elongated apertures 16 a, 16 b of the locking insert 15 and the apertures 10 a, 10 b of the main body 10.
  • FIG. 2 is a side view of the wingnut assembly showing the main body 10 as well as first and second wing members 20, 30. In the embodiment of FIG. 1, the main body 10 includes a sleeve 12 to facilitate stable and effective mounting of a cymbal to a threaded shaft. The sleeve also protects the cymbal hole from damage from the threaded shaft. In the preferred embodiment, the sleeve 12 is integrated or integrally formed with the main body 10; however, the combination main body 10 and sleeve 12 may take different lengths, shapes and forms as understood by those of skill in the art of percussion instruments, namely cymbals and cymbal stands. Alternately, the sleeve 12 may be omitted or formed as a separate member.
  • The wing members 20, 30 are pivotally mounted to the main body 10 via pivot pins 22, 32; respectively, disposed in the apertures 10 a, 10 b of the main body 10. Each wing member 20, 30 is preferably provided or formed with gripping members or knurled portions 20 a, 30 a to facilitate gripping by a user when the user pivots the wing member 20, 30 between an unlocked position (see FIG. 2) and a locked position (see FIG. 3).
  • FIG. 4 shows an isolate view of the main body 10 and sleeve 12, and FIG. 5 is a top view of the main body 10 and sleeve 12. FIG. 6 is a cross sectional view of the main body 10 taken along section line VI-VI of FIG. 4, and FIG. 7 is a cross sectional view of the main body 10 taken along section line VII-VII of FIG. 4.
  • The main body 10 comprises sidewalls 1 a, 1 b with a central top portion 11 c having a bore 11 d aligned with the axial passageway 13. Mounting apertures 10 a, 10 b are formed in the sidewalls 11 a, 11 b. The mounting apertures receive the pivot pins 22, 32 to thereby pivotally mount the wing members 20, 30 to the main body 10 through the locking insert 15 as described below.
  • With reference to FIG. 6, the locking insert 15 is inserted into the window 14 formed in the main body 10.
  • FIGS. 8A and 8B is an isolated side view of the first and second wing members 20, 30. With reference to FIG. 8A, the wing members 20, 30 include a gripping section with knurled portions 20 a, 30 a to facilitate gripping by a user when the user pivots the wing member 20, 30 between an unlocked position (see FIG. 2) and a locked position (see FIG. 3). With reference to FIG. 8B, each of the wing members 20, 30 includes a pair of mounting leg 22, 32 with apertures 21, 31 (see FIG. 1) and cam surface 24, 34.
  • FIG. 9 is a side view of the locking insert 15 and FIG. 10 is a top view of the locking insert 15. FIG. 11 is a cross sectional view of the locking insert 15 taken along section line XI-XI of FIG. 10.
  • The locking insert 15 comprises first and second arms 15 a, 15 b integrally formed and interconnected by a living hinge portion 17 which biases the arms 15 a, 15 b apart. As shown in FIG. 11, the internal surfaces 18, 19 of the arms 15 a, 15 b are formed as partially threaded surfaces to match threads of a threaded post in the manner described below. When the wing members 20, 30 straddle the locking insert 15, the cam surfaces 24, 34 are positioned to engage the lateral projections 15 a′, 15 b′ of the arms 15 a, 15 b. The elongated apertures 16 a, 16 b allow the arms 15 a, 15 b (and internal surfaces 18, 19) to move relative to the main body 10.
  • Operation of the present invention will be described with reference to FIG. 12, which is a view of the locking insert 15 and wing members 20, 30 shown mounted to a cymbal post 40 with the main body 10 omitted for clarity. The wing members 20, 30 may be pivoted in the direction of arrows X and X′. As the wing member 20 is pivoted to the upright position in the direction of X shown in FIG. 12, the internal surface 18 is deflected in the direction of arrow Y against the cymbal post 40 whereby the threaded portion of the internal surface 18 mates with threads provided on the cymbal post 40. Likewise, when the wing member 30 is pivoted to the down position in the direction of X′ shown in FIG. 12, the internal surface 19 is biased in the direction of arrow Y′ by the living hinge 17 away from the cymbal post 40 whereby the threaded portion of the internal surface 19 moves away and disengages from the threads provided on the cymbal post 40.
  • The assembly of the present invention provides three different mounting arrangements. The first and second wing members 20, 30 are adapted to provide: (a) a locking position where the main body 10 is immovably locked to the threaded shaft 40 when both wing member 20, 30 are in the upright (engaged) position (see FIG. 13); (b) an adjustment position where one of the wing members 20, 30 is in the locking position and the other wing member 20, 30 is in an unlocking position to permit selective adjustment of the main body 10 with respect to the threaded shaft 40 (see FIG. 14), and (c) a sliding position where both wing members 20, 30 are in an unlocking position to permit the main body 10 to slide axially along the threaded member 40 (see FIG. 15).
  • While the foregoing invention has been shown and described with reference to a preferred embodiment, it will be understood by those of skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

Claims (15)

1. An adjustable nut for use with a bolt having a threaded shaft, said adjustable nut comprising:
a main body having an axial passageway through which said threaded shaft is adapted to pass;
a locking insert mounted on said main body, said locking insert comprising a pair of internal surfaces that face said threaded shaft, said internal surfaces defining a portion of said axial passageway, wherein said internal surfaces are integrally formed with and connected by a substantially v-shaped, living hinge adapted to bias said internal surfaces away from said axial passageway and said threaded shaft;
first and second wing members pivotally mounted to said main body, said wing members including a respective cam surface adjacent said axial passageway, said cam surface adapted to deflect said movable internal surface toward said threaded shaft;
wherein said first and second wing members are adapted to provide a locking position where said main body is immovably locked to said threaded shaft, an adjustment position where said first wing member is in said locking position and said second wing member is in an unlock position to permit selective adjustment of said main body with respect to said threaded shaft, and a sliding position where said first and second wing members are in an unlocking position to permit said main body to slide axially along said threaded shaft.
2-5. (canceled)
6. The adjustable nut according to claim 1, wherein said main body is integrally formed with a cylindrical sleeve adapted to pass through an aperture of a cymbal.
7. The adjustable nut according to claim 1, wherein said wing members include a knurled portion to facilitate gripping by an operator.
8. An adjustable nut for use with a bolt having a threaded shaft said adjustable nut comprising:
a main body having an axial passageway through which said threaded shaft is adapted to pass, said main body carrying a movable internal surface of said axial passageway facing said threaded shaft;
first and second wing members pivotally mounted to said main body, said wing members including a respective cam surface adjacent said axial passageway, said cam surface adapted to deflect said movable internal surface toward said threaded shaft
wherein said first and second wing members are adapted to provide a locking position where said main body is immovably locked to said threaded shaft, an adjustment position where said first wing member is in said locking position and said second wing member is in an unlock position to permit selective adjustment of said main body with respect to said threaded shaft, and a sliding position where said first and second wing members are in an unlocking position to permit said main body to slide axially along said threaded shaft,
wherein said locking insert and said main body include apertures which are aligned with an aperture provided in said first and second wing members.
9. The adjustable nut according to claim 1, wherein said locking insert comprises a central aperture aligned with said axial passageway.
10. The adjustable nut according to claim 1, wherein wing members straddle said locking insert.
11. An adjustable nut for use with a bolt having a threaded shaft, said adjustable nut comprising:
a main body having an axial passageway through which said threaded shaft is adapted to pass;
a locking insert mounted on said main body, said locking insert having an internal surface facing said threaded shaft, said internal surface defining a portion of said axial passageway, wherein said internal surface is integrally formed with and connected to said locking insert by a substantially v-shaped living hinge adapted to bias said internal surface away from said axial passageway and said threaded shaft;
at least one wing member pivotally mounted to said main body, said wing member including a cam surface adjacent said locking insert, said cam surface adapted to deflect said internal surface toward said threaded shaft.
12. The adjustable nut according to claim 11, wherein said at least one wing member comprises first and second wing members adapted to provide a locking position where said main body is immovably locked to said threaded shaft, an adjustment position where said first wing member is in said locking position and said second wing member is in an unlock position to permit selective adjustment of said main body with respect to said threaded shaft, and a sliding position where said first and second wing members are in an unlocking position to permit said main body to slide axially along said threaded member.
13. The adjustable nut according to claim 11, wherein said internal surface is defined by a pair of internal surfaces formed on said locking insert, said pair of internal surfaces facing one another.
14. (canceled)
15. The adjustable nut according to claim 11, wherein said main body is integrally formed with a cylindrical sleeve adapted to pass through an aperture of a cymbal.
16. The adjustable nut according to claim 11, wherein said at least one wing member include a knurled portion to facilitate gripping by an operator.
17. An adjustable nut for use with a bolt having a threaded shaft, said adjustable nut comprising:
a main body having an axial passageway through which said threaded shaft is adapted to pass;
a locking insert mounted on said main body, said locking insert having an internal surface facing said threaded shaft;
at least one wing member pivotally mounted to said main body, said wing member including a cam surface adjacent said locking insert said cam surface adapted to deflect said internal surface toward said threaded shaft,
wherein said locking insert and said main body include apertures which are aligned with an aperture provided in said first and second wing members.
18. The adjustable nut according to claim 11, wherein said at least one wing member straddles said locking insert.
US10/704,822 2003-11-12 2003-11-12 Quick release nut assembly for percussion instrument Active US6884015B1 (en)

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US11/086,402 US7176368B2 (en) 2003-11-12 2005-03-23 Quick release nut assembly for percussion instrument

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Cited By (1)

* Cited by examiner, † Cited by third party
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US20050191153A1 (en) * 2004-02-03 2005-09-01 Mcintyre Gary Split nut

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Publication number Priority date Publication date Assignee Title
US6884015B1 (en) * 2003-11-12 2005-04-26 Pearl Musical Instrument Co. Quick release nut assembly for percussion instrument
US7198236B2 (en) * 2004-12-20 2007-04-03 Warner Terry P Multi-sectional nut and adjustable length pole incorporating such nut
US7479593B1 (en) 2007-11-19 2009-01-20 Townsend David J Quick release cymbal locking device
JP4832552B2 (en) 2009-05-27 2011-12-07 星野楽器株式会社 Cymbal holder and cymbal stand
US8237039B2 (en) * 2009-09-25 2012-08-07 Kmc Music, Inc. Adjustable wing nut-less cymbal mount
NZ589438A (en) * 2010-11-22 2013-01-25 Leslie Brian Meadows A mount in two parts that trap a cymbol or similar between them and retained with a wire in a slot in the shaft it is mounted on
US8436240B1 (en) * 2011-10-19 2013-05-07 Billdidit Inc. Quick release coupling
US8471133B1 (en) * 2012-01-06 2013-06-25 K.H.S. Musical Instrument Co., Ltd. Quick-release cymbal felt locating device
US8974138B2 (en) * 2012-03-28 2015-03-10 Tsun-Chi Liao Fast disassembly fastening apparatus for musical instruments
US9322425B1 (en) 2013-03-05 2016-04-26 William Feldman Instrument clip
CN104006059B (en) * 2014-06-05 2016-04-13 常州市南飞机械有限公司 Dismountable multi-functional wing bolt
US9355625B1 (en) * 2015-02-10 2016-05-31 Pearl Musical Instrument Co. Cymbal mounting assembly
WO2018136544A1 (en) * 2017-01-17 2018-07-26 Drum Workshop, Inc. Nut devices for instrument stand

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US1157564A (en) * 1915-03-15 1915-10-19 Stephen G O Neil Dust-cap for tire-valves.
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US2314509A (en) * 1939-07-20 1943-03-23 Illinois Tool Works Lock nut
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US3084964A (en) * 1961-01-24 1963-04-09 Symons Mfg Co Column brace and clamp assembly
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US3599960A (en) * 1969-06-12 1971-08-17 John R Phillips Screw clamp
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US6884015B1 (en) 2005-04-26
US7176368B2 (en) 2007-02-13
US20050160900A1 (en) 2005-07-28

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