US3149589A - Combination sewing machine ribbon cutter and cloth trimming attachment - Google Patents

Description

Sept. 22, 1964 G. FOWLER, SR 3,14

COMBINATION SEWING MACHINE RIBBON CUTTER AND CLOTH TRIMMING ATTACHMENT Filed Aug. 3, 1961 2 Sheets-Sheet l INVENTOR Gilbert Fowler, 8:

ATTORNEY Se t. 22, 1964 G. FOWLER, SR 3,

COMBINATION SEWING MACHINE RIBBON CUTTER AND CILOTH TRIMMING ATTACHMENT Filed Aug. 3, 1961 2 Sheets-Sheet 2 4. 82 v 76 F- 58 74 i 67 5s 34 F fi 32 INVENTOR Gilbert Fowler, Sr.

ATTORNEY United States Patent 3,149,589 COMBINATION SEWING MACHINE RIBBGN CUT- TER AND QLOTH TRIMMING ATTACHMENT Gilbert Fowler, Sin, 1128 Broadway, Brookyln, NIY. Filed Aug. 3, 1961, Ser. No. 129,137 2 Claims. (Cl. 1l2-125) This invention relates to improvements in sewing machines and more particularly to a ribbon cutting attachmerit therefor, adapted to provide manually operable means for severing the ribbon supply subsequent to a simultaneous stitching and edge trimming operation.

Objects and advantages of the invention will be set forth in part hereinafter and in part will be obvious herefrom, or may be learned by practice of the invention, the same being realized and attained by means of the instrumentalities and combinations pointed out in the appended claims.

The invention consists in the novel parts, constructions, arrangements, combinations and improvements herein shown and described. The accompanying drawings referred to herein and constituting a part hereof, illustrate one embodiment of the invention, and together with the description, serve to explain the principles of the invention.

FIGURE 1 is a perspective view of the machine showing ribbon and cloth being fed to the Work support area, ofa conventional sewing machine;

FIGURE 2 is an enlarged perspective view of the ribbon cutter and cloth trimming attachment positioned adjacent the reciprocating stitching mechanism showing cloth and ribbon being fed to the Work support area;

FIGURE 3 is an isolated plan view of the present invention; I

FIGURE 4 is a view taken along line 4-4 of FIG- URE 3; and

FIGURE 5 is a back end elevation View of the ribbon cutter in normal inoperative position.

The invention has for its primary object, the provision of a sewing machine attachment, the function thereof being to facilitate and expedite the ribbon severing operation thereby elfectuating both substantial savings in time and minimization of fatigue with respect to the sewing machine operator.

Another object of the invention is to provide a readily adaptable sewing machine attachment enabling the simultaneous trimming of the edge of a sheet of cloth and the stitching of a ribbon to said sheet.

A further object of the present invention is the provision, in combination, of a self-contained removably adapted attachment for conventional sewing machines whereby an edge of a sheet of cloth can be trimmed, ribbon can be stitched near the edge of the sheet and whereby the unused supply of ribbon can be instantaneously severed by merely depressing a lever, said lever being an element of the combination.

It will be understood that the foregoing general objectives and the following detailed description as Well are exemplary and explanatory but are not restrictive of the invention.

Referring now in detail to the present preferred embodiment of the invention illustrated by way of example in the accompanying drawings, FIGURES l and 2 show the sewing machine ribbon cutter and cloth trimming attachment designated generally by numeral 1 positioned adjacent the reciprocating stitching mechanism of a conventional sewing machine. Sheet of cloth 2 is being drawn over approach support 4 along work support frame 6 and beneath pressser foot 8 which is adjustably mounted by a manually settable screw 10 and held rigidly by fixed support member 12 integral with needle bar 14. The cloth is drawn in the usual manner by means of a feed dog (not shown), but positioned for oscillating movement beneath said presser foot 8 and within a longitudinal slot provided in the throat plate (not shown).

Ribbon 1a is fed from spool 18 supported from above by angle-rod 24) through a guiding bracket 22 mounted on presser foot 8, to a position superposed with respect to said cloth 2. Thus, botlrcloth and ribbon are simultaneously drawn beneath needle 24 which is reciprocated vertically through the cloth and ribbon in synchronism with the concurrent movements thereof.

Concurrently with the stitching operation, the edge of the cloth is sheared off parallel to the direction of travel, as will be described, in order to insure a straight edge on the finished product. A pair of scissor blades generally designated as 26 are further provided to manually sever the ribbon supply from the cloth in a direction normal to the trimming operation upon termination of the stitching operation, such severing operation being simply accomplished by depression of tab 30 located endwise of lever 32.

In achieving the aforementioned trimming and ribbon cutting operations and in consonance with the foregoing objects, the attachment fully illustrated in FIGURES 3-5 is provided.

With respect to the trimming operation, any uneven cloth edge is trimmed off by a pair of shears having a stationary blade 34 and a pivoted blade 36 best seen in FIGURE 3 of the drawings, the cloth being trimmed appearing generally as 26 in FIGURE 2.

The pivoted blade 36 is an integral part of horizontal shaft 38 which is rotatable within bearing block 40. Loop-crank lever 42 attached at one end to horizontal shaft 38 by means of screw clamp 44 depends downwardly from said horizontal shaft for concentric connection to an eccentric shaft (not shown), the motion ofv which is transposed through said loop-crank lever to said horizontal shaft to cause the said pivoted blade to automatically move in synchronism with the cloth feeding device. Horizontal shaft 38 may be manually adjusted longitudinally against bearing block 40 by nut 46 on the threaded end of shaft 38 to place movable blade 36 in proper cutting relationship with stationary blade 34 or out of cutting engagement with said fixed blade 34 if that be desired. It will be observed that stationary blade 34 is removably attached to an integral extension of said bearing block 4t). Compression spring 48 which envelopes shaft 38 provides continuing resilient contact between both blades.

The attachment 1 is rigidly adjustably mounted upon work support frame 6 by screws 5% through slots 52 positioned in bracket plate 54, it being appreciated that the entire attachment structure is integrally related and accordingly comprises a unitary structure. Waste chute 56 is provided to receive the trimmings removed by the shears and permits continuing disposal of the trimming away from the working area.

The ribbon cutting operation being manual is accomplished by actuation of pivoted blade 58 comprising the movable member of the pair of scissors provided therefor. Lever 32, having its fulcrum at 60 is supported thereat by screw pin 62 mounted within bifurcated support block 65 adjacent the bearing block 40. The bifurcated end 64 of lever 32 journals a lift linkage member 66 which is pivotally connected therebetween on pin 68. End 70 of pivoted blade 58 is slidably received within opening 72 of the said lift link member, the movement of lever 32 being communicated through the linkage to blade 58 pivoted at 74. Machine screw 76 being threadedly connected to hearing block 40 supports the pivoted blade 58 at 74 and provides support for stationary blade 78 which is further rigidly connected against the rear of support block 46. It will be additionally appreciated that Patentedsept. 22., 1964 said lever 32 is normally biased in the upward direction shown in FIGURE 4, such bias being maintained by compression spring 80 positioned within annular chamber 81 within said bifurcated support block 65 and arranged to act against the under edge of lever 32 as illustrated. Leaf spring 82 held against said pivoted blade 58 by means of said machine screw 76 provides continuing resilient contact between both blades of said pair of scissors 26. Housing cover 84 is provided and held in place by machine screw 88 as shown in FIGURE 1.

Therefore in accordance with the foregoing description, the operation of the novel sewing machine attachment disclosed herein will be readily understood, the ribbon cutter and cloth trimming device combination being a unitary attachment comprised of cooperating parts which together substantially improve the usefulness of conventional type sewing machines in accomplishing the objects and advantages hereinabove set forth.

Although the preferred embodiment of the device has been described, it will be understood that within the purview of this invention various changes may be made in the form, details, proportion and arrangement of parts, the combination thereof and mode of operation, which generally stated consists in a device capable of carrying out the objects set forth, as disclosed and defined in the appended claims.

What is claimed is:

1. A sewing machine attachment adapted to sever a ribbon supply and to trim the edge of apiece of cloth parallel to the direction of travel comprising in combination, a support frame, said support frame having an opening therein, a first stationary blade and a first pivotable blade, a second stationary blade and a second pivotable blade, said second stationary blade being disposed within said opening, the pivot axes of said first pivotable blade and second pivotable blade being in substantially the same plane, said first stationary blade being fixed adjacent an edge of said support frame and disposed above the latter; a bearing block mounted upon said support frame adjacently of said opening, a lever member, said lever member being slidably connected to said first pivotable blade and pivotably supported within said bearing block, manual depression of said lever member effectuating the severing of a ribbon passing between said first stationary and first pivotable blades, said second pivotable blade being pivotably supported by said bearing block and in cutting relation with said second stationary blade, means adapted to operate said second pivotable blade in synchronism with the cloth-feeding means, and the cutting edges of said first and second blades being normally disposed with respect to one another, whereby the ribbon stitched to the edge of the piece of cloth trimmed by said second blades first passes between said first blades.

2. A sewing machine attachment adapted to sever a ribbon supply and to trim the edge of a piece of cloth to which said ribbon is stitched comprising in combination,

a support frame, said support frame having an opening therein, a first stationary blade and a first pivotable blade, a second stationary blade and a second pivotable blade, said second stationary blade being disposed within said opening, the pivot axes of said first pivotable blade and second pivotable blade being in substantially the same plane, said first stationary blade being fixed adjacent an edge of said support frame and disposed above the latter, a bearing block mounted upon said support frame adjacently of said opening, an horizontal shaft rotatably journalled within said bearing block, said second pivot able blade being integral with said horizontal shaft and offset at an end of said horizontal shaft, a compression spring disposed annularly and inwardly of the other end of said horizontal shaft, said compression spring be ing retained between said other end of said shaft and said bearing block, a lever member, said lever member being slidably connected to said first pivotable blade and pivotably supported within said bearing block, manual depression of said lever member efiectuating the severing of a ribbon passing between'said first stationary and first pivotable blades, said second pivotable blade being pivotably supported by said bearing block and in cutting relation with said second stationary blade, means adapted to operate said second pivotable blade in synchronism with the cloth-feeding means, and the cutting edges of said first and second blades being normally disposed with respect to one another, whereby the ribbon stitched to the edge of the piece of cloth trimmed by said second blades first passes between said first blades.

References Cited in the file of this patent UNITED STATES PATENTS Re. 9,056 Wiggin Jan. 20, 1880 Re. 9,112 Bigelow Mar. 9, 1880 263,641 Willcox Aug. 29, 1882 523,933 Fefel July 31, 1894 836,198 Molfatt Nov. 20, 1906 1,286,113 Robinson Nov. 26, 1918 2,095,647 Mann a Oct. 12, 1937

Claims (1)

1. A SEWING MACHINE ATTACHMENT ADAPTED TO SEVER A RIBBON SUPPLY AND TO TRIM THE EDGE OF A PIECE OF CLOTH PARALLEL TO THE DIRECTION OF TRAVEL COMPRISING IN COMBINATION, A SUPPORT FRAME, SAID SUPPORT FRAME HAVING AN OPENING THEREIN, A FIRST STATIONARY BLADE AND A FIRST PIVOTABLE BLADE, A SECOND STATIONARY BLADE AND A SECOND PIVOTABLE BLADE, SAID SECOND STATIONARY BLADE BEING DISPOSED WITHIN SAID OPENING, THE PIVOT AXES OF SAID FIRST PIVOTABLE BLADE AND SECOND PIVOTABLE BLADE BEING IN SUBSTANTIALLY THE SAME PLANE, SAID FIRST STATIONARY BLADE BEING FIXED ADJACENT AN EDGE OF SAID SUPPORT FRAME AND DISPOSED ABOVE THE LATTER; A BEARING BLOCK MOUNTED UPON SAID SUPPORT FRAME ADJACENTLY OF SAID OPENING, A LEVER MEMBER, SAID LEVER MEMBER BEING SLIDABLY CONNECTED TO SAID FIRST PIVOTABLE BLADE AND PIVOTABLY SUPPORT WITHIN SAID BEARING BLOCK, MANUAL DEPRESSION OF SAID LEVER MEMBER EFFECTUATING THE SEVERING OF A RIBBON PASSING BETWEEN SAID FIRST

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