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Publication numberUS1672348 A
Publication typeGrant
Publication dateJun 5, 1928
Filing dateApr 8, 1926
Priority dateApr 8, 1926
Publication numberUS 1672348 A, US 1672348A, US-A-1672348, US1672348 A, US1672348A
InventorsSharpe Wayne N
Original AssigneeSharpe Wayne N
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tuning peg
US 1672348 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

June 5, 1928.

1,672,348 w. N. SHARPE TUNI NG PEG Filed April 8, 1925 Patented June 5, 1928 PATENT OFFICE.

WAYNE N; SHARPE, OF NEW YORK, N. Y.

, TUNING PEG.

mismafiled April 8, 1926. Serial No. 100,754.

This invention relates to improvements in tuning pegs or keys for stringed mstruments, and the primary object of theinvention is to provide devices of this character embodying novel locking features whereby an even degree of friction. may be maintained for preventing counter movement of the tuning peg or key. y a; u I A further object of the invention is to provide a novel type of tuning peg which is of such construction as to eliminate the necessity of frequent adjustment being made to the, peg for obtaining the desired friction. 7 Other objects and advantages of the vention will be apparent during thecourse of the following detailed description, taken in connection with the accompan ing drawing forming a part of this specification and in which drawing 1 t e Figure 1 is a viewshowing a gear type of peg as constructed in accordance with my invention, and showing the same applied to the head portion of a stringed instrument.

Figure ,2 is a view substantially similar to Figure 1 and showingportions of the gear pegin section for illustratingdetails of construction.

Figure 3 is aview part in section and part in side elevation, and showing the friction retaining means incorporated in, a friction -y lgure 4 1s a view part in sectlonand part in side elevation andshowing the frict on retaining means incorporated in a ban O 5th 1gure 5 1s a transverse sectionon line 5-5 of Figure 4.

Referring to the draw ng in detail, and

wherein similar reference characters designate corresponding parts throughout I the several views, the letter A designatestuning s of the ear type, B a tuning peg of the fr i ztion type and C a modified type of friction peg constituting a ban o 5th peg. r

, Referring particularly toFlgures 1 and 2, the gear peg A is shown applied to the head portion H of any suitable type I of stringed instrument. The gear peg A embodies the usual gear case 10 which may be secured to the underside of the head H as by suitable fastening means such as screws 11. This gear case 10 and which is of ordinary construction, serves as a mounting for the lower end of a string post 12 which projects upwardly through the head H and is apertured as at 13 for receiving a string in the usual manner. Extending from the lower or opposite side of the gear case 10, is a button post 14 and which post is journaled n the lower wall 15 of the gear case. Rigldly carried by the inner end of the button post 14, and disposed within the gear case 10, 1s a gear 16 which is adapted to mesh with suitable other gears mounted in the gear case, for imparting a rotary movement to the string post 12 upon rotation of the button post 14. The construction of the gear case 10, and gears arranged in the case for imparting rotary movement to the spring post 12 upon turning of the button post 14 is well known, and forms no part of this invention. The gear 16 forms a shoulder 17 at the inner end of the button post 14, and which shoulder is adapted to bear against the inner surface of the lower Wall 15 of the gear case in a manner for preventing withdrawal of the button post from the gear case. The post l4has an intermediate threaded portion 18 disposed exteriorly of the gear case 10, and extending in axial alignment with the threadedportion 18 is a stem portion 19 which is preferably square in cross section. Provided in the stem portion 19 and opening at the end thereof, is a threaded bore 20 for receiving a threaded retaining screw 21 which extends in axial alignment with the post 14.

A substantially flat button 22 having a shoulder 23 formed at its inner end is provided with a bore having a squared portion 24 for receiving the square stem portion of r engagement with the outer surface of the lower wall 16 of the-gear case by means of i a retaining nut 27 turned upon the threaded portion 18 of the button post. Thus it will beseen that upon turning of the retaining nut 27, that a binding action will be createdon the lower wall 15 of the gear case by means of the shoulder 17 acting on the inner face of the wall 15 and the disc 26 acting upon the outer surface of the wall. The degree of rotation of the nut 27 will deter mine the degree of friction created on the wall 15 of the gear case. A'jam or lock nut 28 threaded upon the portion 18below' the retaining nut 27, serves as a retaining means for the nut 27 after the nut 27 has been turnedto create the desired frlction.

. The retaining screw 21 may then be turned into-the bore 20 which will force the shoulder 23 of the button into engagement-with the outer face of the jam nut for acting as alock for the jam nut.

In the usual construction of gear pegs as illustrated in Figures 1 and 2, the shoulder 23 of the'button is moved intdbinding engagement with the friction disc 26 by means of the retaining screw 21 for applying the desired friction to the peg. This method has not been entirely satisfactory owing to the fact that the retaining screw works loose due to the turning of the buttointhus lessening the binding action UPOIIthGCCllSC and allowing too free rotation of the button post. This necessitates frequent adjusting of the screw 21 for maintaining an even degree of friction between thedisc 26 and the gear case. These buttons are'usually made of celluloid or of a rubber composition, anddue to atmospheric conditions, expand and contract so that an' even degree of friction is not at all times'maintained for preventing too free rotation of the button post.

" By so threading an intermediate portion which is adapted for frictional engagement the head H and be locked in with the upper side of the head H. The-re taining nut 27 is provided with a' tapering end for seating in a conical shaped opening or-depression 31 providedin the under face of the head H. This nut 27 is'adapted to be turned into frictional engagement with its adjusted position by the jam nut 28. a

In Figure 4, and which showing is of a banjo 5th peg, the retaining nut27 serves to force the sleeve 35 into binding engagement within the conical bushing 36 which is securedin the'neok N. The bushing 36 acts upon a head or shoulder 37 formed at the inner end of the button post. The sleeve 35 is provided with a squared bore for receiving the squared portion 38 of the post, and it can be seen that upon turning of the retaining nut 27 that a binding action will be created between the sleeve 35 and conical shaped bushing 36. 1

'- From the foregoing description it will be apparent that an eflicienttype of tuning peg I has been provided embodying novel features 'Whereby an even degree of friction will be maintained upon the pegs for a considerable length of time without frequent adjustment Changes in detail may be made to the specific form-s of the invention herein shown anddescribed, without departing from the scope of the spirit of the invention or the following claims.

I claim: 1. A tuning peg including a-button post having ashoulder a threaded portion and'a stemportion disposed in the respective order given, a retaining nut mounted upon the threaded portion for movement towardsaid shoulder, a lock nut mounted upon the threaded portion for locking relation with the retaining nut, and an operating button carried'by the stem portion of the post.

2, A tuning peg including a button post having a shoulder, a threaded portion and a stem portion disposed in respective axial alignments, a retaining nut mounted uponthe threaded portion for movement toward said shoulder, a lock nut-mounted upon the threaded portion for locking relation with the retaining nut, and an operating button carried by the stem portion of the post and frictionally engaging said lock nut.

3. A tuning peg including'a button post having a shoulder a threaded portion and'a stem portion disposed in respective axial alignment, a retaining nut mounted upon the threaded portion for movementtoward said shoulder, a locknut mounted upon the threaded portion for locking theretaining nut in adjusted positions, a button mounted upon the stem portion of the post and engaging the locknut, and means for drawing the button into binding engagement with said lock nut.

(t. A tuning peg including a button portion having a shoulder a threaded portion and a stem portion disposed in axial alignment,'a retaining nut mounted upon the threaded portion for movement toward. said shoulder, a lock nut mounted upon the threaded portion for locking relation with the retaining nut, a button slidably mounted uponthe'stem portion of the post and having itsinner end engagingsaid lock nut,iand retaining means for the button for moving the same longituidnally of the stemportion into binding'engagement with the lock nut.

5. A tuning peg including a button formed with a shoulder, an intermediate threaded portion, and a stem-portion provided'with a threaded bore, a retaining nut mounted upon the threaded portion for movement toward said shoulder, a look nut mounted upon the threadedportion for locking relation with the retaining nut,a button slidably mounted upon the stem portion of the post and engaging at its inner end with said lock nut, and a retainnig screw threade ed into the bore of said stem, and having a head'engaging the button for drawing the button into binding engagement with said upon the threaded portion for locking relation with the retaining nut, a button provided with a bore having a squared portion for slidably receivingthe squared stem portion of the post, and a. retaining screw threaded in the bore of said stem and having a head engaging the button whereby the button may be drawn into binding engagement withsaid look nut.

7. A tuning peg including a post having a shoulder formed at one end thereof and said post including a threaded portion and a squared stem portion, a button detachably carried by the squared stem portion and friction retaining means carried by the threaded portion of the post and capable of being locked in adjusted positions relative to the shoulder of said post.

8. A tuning peg'comprising a gear case, a string post carried by said gear case, a button post carried by the gear case and having a shoulder formed at its inner end and engaging the inner surface of the gear case, said button post including a threaded portion and a stem portion disposed exteriorly of the gear case, means mounted in the gear case for imparting movement from the button post to the string post, a friction disc carried by the button post and engaging the outer surface of the gear case, a retaining nut mounted upon the threaded portion of the post for creating a frictional action between the friction disc and gear case, a lock nut carried by the threaded portion ofthe post and serving to prevent further rotation of the retaining nut, a button carried by the stem portion of the post and engaging at its inner end said lock nut, and retaining means for securing the button to the post and drawing the button into binding engagement with said lock nut.

9. Atuning peg comprising a post formed with ahead, a plain portion, a threaded portion, and a squared stem portion arranged in respective axial alignment, a bushing mounted upon the post and engaging the head portion thereof, a sleeve mounted upon the plain portion of the post and movable longitudinally of the post into frictional engagement with said bushing, a retaining nut threaded upon the threaded portion of the post and engaging said sleeve for movement of the sleeve toward said bushing, a lock nut mounted upon the threaded portion of the post and adapted for locking engagement with said retaining nut, a button nonrotatably mounted upon the squared stem portion of the post and having its inner end engage said lock nut, and a retaining screw extending through said button and engaging said post for drawing the button into binding engagement with the lock nut.

WAYNE N. SHARPE.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2558059 *Oct 7, 1948Jun 26, 1951Nyhagen Barney RTuning peg for musical instruments
US2793556 *Feb 17, 1953May 28, 1957Maccaferri MarioNeck junction for stringed musical instruments
US3119297 *Oct 11, 1962Jan 28, 1964Grover Musical Products IncBanjo fifth string tuning peg
US4026182 *Apr 15, 1976May 31, 1977Gilbrech Donald ATuning peg
US4046050 *Feb 23, 1976Sep 6, 1977Fender C LeoString post for musical instruments
US5998713 *Feb 11, 1999Dec 7, 1999Herin; John CTuning peg
US20090025528 *Aug 11, 2008Jan 29, 2009Wittner Gmbh & Co. KgTuning peg element
Classifications
U.S. Classification84/304, 984/119
International ClassificationG10D3/00, G10D3/14
Cooperative ClassificationG10D3/14
European ClassificationG10D3/14