US2273592A

US2273592A - Sewing machine needle

Info

Publication number: US2273592A
Application number: US332552A
Authority: US
Inventors: Omer J Rainville
Original assignee: E Z I NEEDLE Co Inc
Current assignee: E Z I NEEDLE Co Inc
Priority date: 1940-04-30
Filing date: 1940-04-30
Publication date: 1942-02-17
Anticipated expiration: 1959-02-17

Description

o. J. RAINVILLE sEwING MACHINE NEEDLE Filed April 30, 1940 Feb. 17, 1942.

IPatented Feb. .17, v19:'-i2

SEWING MAcmNE NEEDLE 1 omer J. namviuo; south Attleboro, Mossa, -ossignor to E. Z. I. Needle Company Incorporated,

Providence, R. I.

Application April ao, 1940, serial No. '332,552

(Ci. 11e- 224) 2 claims,

[This invention relates to certain new and useyful improvements in sewingmachine needles.

'I'he needle disclosed herein comprises a main body portion including Ia shank, a hub with a tapered neck `connecting the 4shank to the hub with a resilient thread guide arm attached to the shank of the needle to facilitate threading thereof and a machine for attaching the resilient thread guide arm to the .shank of the needle is illustrated in application for patent filed byOmer J. Rainville on -Jun'e 17, 1940, Serial No. 341,051. The primary vobject of this invention is to provide a sewing machineneedle comprising a shank pointed at one endwith a mounting hub at the other end of the shank vconnected thereto by means of a tapered neckwithoneeside of the neck concaved and with a resilient thread guide ar anchored at its outer end to the needle shank adjacent the pointed end in proximity of the eye of the needle with the inner' end of th resilient arm overlying the cncaved portion of the neck to facilitate the placement of a thread -between the resilient arm landshank of the neediev fonmovement longitudinally ofthe needle shank to the eye portion'thereof. 1

Itis a further object of the-invention to provide a sewing'machine needle of the foregoing character .wherein the shank of the. needle is longitudinally out away at one side to provide an upstanding'longitudinally extending rib vwith its side edges spaced inwardly of opposite-sides of theneedle shank to provide thread guide grooves, the needle shank and ribl gradually widening from a point substantially midway the ends thereof toward the" hub for strengthening the needle shank out of the zone where the pointed threadneedle blank, showing the relatively narrow rib carried by the shank of the needle blank, j

Figure 4 is a cross-sectional view taken on line 4-4 of Figure 1, showing the rib of increased width adjacent the supporting hub for the needle,

Figuren/is a cross-sectional view taken on line 5-5 of Figure 1 through the tapering neck connecting the needle shank to the supporting hub,

Figure 6 is a cross sectional view taken on -pleted sewing machine needle with the resilient thread guide arm'attached thereto and having the inner end of the thread guide arm cooperating with the tapered neck connecting the needle shank to the supporting hub to facilitate threading of the needle,

lFigure 8 is a top plan View of the completed needle shown in Figure 7, and

e yFigure' 9 is a cross-sectionalview vtaken on 1 line 9-9 of Figui-e7.

'I'he needle blank as shown in Figures 1 to 6 comprises a shank designated in general'by the reference character I0, the inner end of the o vhubl I I and being connected thereto by the tapering or conical neck I2. As clearly shown in Figure 2, the shank I0 of the needlel gradually increases in diameter from a point substantially# midway the ends thereof-to the conical neck 2 l as shown' at I0, the outerl needle shank point ed end of the`needlel passes-through materials being sewed.

With the above andfother objects in view that l l will become apparent as the nature of the invention is better understood, the same consists in general of certain novel details of construction and combination of parts hereinafter more fully Ill being of standard diameter common to sewing machine needles while the section |09 of increased cross-sectional area is spaced from the lzone of sewing operations and increases the strength of the needle.

One side of the needle shank I0 is longitudivI6 of the conical neck IZ andy rising from saidcut-away portion I3 and centrallythereof is an upstanding rib` I'I spaced from opposite sides of the needle shank l0 as illustrated .in Figure 2,

` said -rib I'I providing opposite thread guide Figure 1 is a side elevational view of the needle 4blankbef'ore. the resilient thread guide arm isA attached thereto.

' Figure. 2 is a top plan view of the'ne'edle blank grooves I8. The narrowest, portion of the rib |11 v is disposed outwardly of the outer end of the -shown inzFigure 1 and illustrating the cut-away f portion at one side ofthe needle shank defining a longitudinally extending rib,

'widened portion I0i ofthe needle shank and said rib I1 as shown at I`|ai in Figures`2 and-'4 gradually widens along the gradually widened section Ill'L of the needle shank and further acts to strengthen the needle.

The outer end IIb of the rib I 1 terminates in spaced relationto the outer end I5'of the needle shank I and the cut-away side portion I3 of the` needle shank outwardly of said rib I1 is provided with a 4second upstanding rib I 9 of tapering formation in plan view as illustrated in Figure 2 with the smaller end I 9 of the rib I 9 terminating in spaced relation to the outer end I'Ib of the rib I'I to provide a cross opening 20 to constitute the eye of the needle.

A resilient thread guide arm 2| shown in Figures 'I to 9 overlies the cut-away side portion I3 of the needle shank and is transversely proportioned relative to the needle shank to provide a complete circular structure in cooperation therewith as shown in Figure 9, the outer end of the resilient arm 2I being spot-welded or otherwise secured as at the point 22, to the upper face of the rib I 9 outwardly of the needle eye 20, the resilient'arm lying in flat engagement with the rib I1 and its widened portion Il. a

As shown more clearly in Figures 7 and 8, the inner end 23 of the resilient arm 2I extends over a portion of the conical ne'ck I2 andas shown 'in Figures 1, 5, 7 and 8'that side of the conical neck I2 in line with the cut-away portion I3 is concaved as at 24 to provide a pocket 25 between the concaved wall 24 and the` adjacent overlying end 23 of the resilient arm to facilitate the placement of a thread for movement between the'rib I1 of the Aneedle shank and the resilient arm 2| tol-the needle eye 20. In the mounting of the resilient arm upon the needle shank, the outer end I of the shank is fashioned into the usual sharpened point I5a shown in Figures 7 and 8.

From the above detailed description of the linvention, it is believed that Vthe construction and operation thereof will Iat once be apparent, and while there is heroin shown and described the preferred embodiment thereof, itis to be understood that minor changes may be made in the details of construction, such as will fall within the scope of the invention as claimed.

Iclaim: v 1. In a sewing machine needle of the characjacent its outer end, 'a mounting hub, a tapering neck connecting the shank to the mounting hub,

one side of the shank being cut away to provide a longitudinally extending rib terminating at one end adjacent the neck and defining lateral thread guide grooves. and a resilient arm anchored at its outer end to the outer end of the shank in overlying relation to said rib with the inner end of the resilientarm overlapping the outer end only of the tapering neck with the inner terminal end spaced laterally of the tapering neck and providing an unobstructed opening to facilitate placement of a thread between the resilient arm and shank rib for movement into the eye of the needle, said shank being of constant diameter from a point substantially midway the ends theref toy the eye at the outer end and the inner end`of the shank from the portion of constant diameter to the outer end of said tapering neck being of gradually increasing diameter inwardly w strengthen the needle shank.

2. In a sewing machine needle of the character described, a needle shank having an eye adjacent its outer end, a mounting hub, atapering neck connecting the shank to the mounting hub, one

side of the shank being cut away to provide a longitudinally extending rib terminating at one end adjacent the neck and detlning lateral thread guide grooves, and a resilient arm anchored at its outer end to the outer end of the shank in overlying relation to said rib with the inner end oi' the resilient arm overlapping the outer end only of the tapering neck with the inter described, a needle shank having an eye adner terminal end spaced laterally of the tapering neck and providing an unobstructed opening to facilitate placement of a thread between the resilient arm and shank rib for movement into the eyev of the needle, said shank being of constant diameter from a point substantially midway the ends thereof to the eye at the outer end andthe inner end of the shank 4from the portion of constant diameter to the outer end of said tapering neck being of gradually increasing diameter inwardly to strengthen the needle shank, and said rib being of gradually increasing width corre-- sponding to the 'diametrically increased portion OMER J. RAJNVIILE.