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Publication numberUS1759050 A
Publication typeGrant
Publication dateMay 20, 1930
Filing dateMay 31, 1927
Priority dateMay 31, 1927
Publication numberUS 1759050 A, US 1759050A, US-A-1759050, US1759050 A, US1759050A
InventorsGail John F
Original AssigneeSimmons Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method of and machine for assembling springs
US 1759050 A
Abstract  available in
Images(18)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

J. F. GAI'IIL' I 1,759,050 I May 20, 1930.- Q

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METHOD OF AND MACHINE FOR ASSEMBLING SPRINGS Filed May 51, 1927 l8 Sheets-Sheet l8 IUD/(2777157? LTo/vz]! Gall Patented May 20, 1930 UNITED, STATES JOHN F. GAIL, OF

PATENT OFFICE" EVANSTON, ILLINOIS, ASSIGNOR TO SIMMONS COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE METHOD OF AND MACHINE FOR ASSEMBLING SIP RINGS Application filed May 31,

This invention relates to the artof spring assembling, and has reference more articularly to methods and machines emp oyed in the manufacture of s ring mattresses, cush- 6 ions and the like, suc for instance, as the gether, and the whole enclosed in a suitablev cover or casing.

In an a plication filed by me on the 26th day of Fe bruary, 1926, SerialNo. 90,892, I have disclosed an organized machine for the 2 manufacture of such spring filled strips which includes mechanism for holding and conveying the two-ply fabric strip, formin the pockets therein, forming the sprin s an inserting the latter in the pockets, an com- I pletely closing the latter leaving the springs distended in operative position within the pockets. The machine of my present invention is of the same general character as the machine of my aforesaid application, but in- 30'volves a num er of changes, notably in the spring inserting mechanism and in the pocket stitching mechanism. In'the machine of my aforesaid ap lication the coil springs compressed into attened form are inserted edgewise into the successive pockets with their axes transverse to the longitudinal axis of the. pocket, and after the pockets have been completely closed the sprm s are operated upon by a mechanism which tilts them 40 througha right angle so as to bring their axes parallel or coincident with the longitu dinal axes of the pockets so as to permit the springs to expand thefull length of the pockets.

One object of my present invention is to obviate the necessity of em loying a spring tilting mechanism, and to t at end my present invention employs a mechanism whereby the flattened springs are inserted into the pockets with their axes parallel orcoincident 1927. Serial No. 195,405.

with the longitudinal axes of the pockets. In

the machine of my aforesaid a plication the individual. pockets of a sing e continuous strip are divided by a single line of stitching between ad'acent pockets. For economy of operation t e spring filled strips are manufactured in considerable lengths, and in the subsequent manufacture of the mattress or cushion each long strip is cut into several shorter strips of the required lengths. This necessitates the restitching of each shorter strip at one end. Another object of my present invention is to provide an im roved stitching mechanism whereby a contlnuous long strip designed to be subsequently cut into a number of shorter strips may be don'- ble stitched by spaced-parallel seams at points corresponding to the intended divisions between the short strip sections, whereby the long strip may be divided at points between 70 the double seams, thus obviating the necessit of subsequently resewing one end of eac shorter strip. In the accomplishment of the last-named object I employ a sewing machine equipped with a pair of laterally spaced needle bars and needles. One of these needles is operated at each travel of the machine across the strip, while the other is idle except at the intended points of division on the stri when it iscoupled to the main needle bar an operates with the latter to form a double seam. Means are provided for securing an extra length of fabric between adjacent pockets at this point so as to afford room for the two parellellines of stitching, and preferably also there is associated with the extra needle bar and needle a cutter which operates to sever the strip midway between the twolines of stitching.

Still other objects and attendant advantages of the invention will be apparent to persons skilled in the art. as the same becomes better understood by reference to the following detailed description, taken in connection with the accompanying drawings wherein I 95 have illustrated a practical and efiicient embodiment of the principle of the invention, and in which- Fig. 1 is a front elevation of the machine; Fig. 2 is an enlarged side elevation of the upper portion of the fast and slow drives of the fabric strip conveyor and the longitudinal stitcher and the fast and slow drives of the transverse stitcher;

Fig. 3 is a vertical transverse section on the line 33 of Fig. 2;

Fig. 4 is a sectional plan view of the ma chine, on the line 4-4 of Fig. 1;

Fig. 5 is a front elevation of the spring coiler and spring conveyor, and the longitudinal stitcher;

Fig. 6 is a front elevation of the fabric conveyor, and the longitudinal stitcher;

Fig. 7 is a detail elevation of the gear drive of the fabric conveyor, viewed from the right of Fig. 15;

Fig; 8 is a view partly in side elevation and partly in longitudinal section of the spring positioning mechanism;

Fig. 9 is a horizontal longitudinal section of the left hand half of the spring positioning mechanism shown in Fig. 8, on the line 9-9 of the latter figure;

Fig. 10 is a horizontal section through the head portion of the positioning mechanism, showing an advanced position of certain of the parts;

Fig. 11. is an enlarged vertical transverse section on the line 1111 of Fig. 8;

Fig. 12 is an enlarged vertical transverse section on the line 1212 of Fig. 8;.

Figs. 13, 14, 15, 16, 17 and 18 are vertical transverse. sections through the machine taken on the correspondingly numbered lines respectively of Fig. 4;

Fig. 14 is an enlarged sectional detail of a portion of the fabric support and conveyor;

Fig. 19 is an end elevation viewed from the left of Fig. 4;

Fig. 20 is a rear elevation of the left hand portion of the machine;

Fig. 21 is a vertical section through. the fast and slow drive pulleys of the transverse stitcher and the clutch controlling the same;

Fig. 22 is an enlarged view of a portion of Fig. 20, showing a different position of certain parts;

Fig. 23 is an elevation of a sewing machine stop mechanism, for arresting the sewing action at the completion of each transverse seam;

Fig. 24. is a longitudinal section on the line 24-24: of Fig. 23;

Fig. 25 is a transverse section on the line 25-25 of Fig. 23;

Fig. 26 is a detail, in longitudinal section, through the clutch shifter of the fast and slow sewing machine pulleys;

Fig. 27 is a front elevation of the twin needle sewing machine head and looper mechanism, showing also a cutter for sever ing the strip between the parallel seams;

Fig. 28 is a side elevation of Fig. 27; viewed from the right of the latter figure;

Fig. 29 is a horizontal section through the looper mechanism taken on the line 2929 of Fig. 27;

F ig..30 is a horizontal section taken on the line 303O of Fig. 28;

Fig. 31 is a top plan view of the needle bar clutch mechanism, showing the clutch disengaged taken on the line 3131 of Fig. 27;

Fig. 32 is a view similar to Fig. 31 showing the clutch engaged;

Fig. 33 is a perspective elevation of the twin needle bars and the clutch and clutchoperating mechanism through which they are connected for simultaneous operatlon;

Fig. 34 is a vertical section. on the line 3434 of Fig. 18, of a clamp which folds the opposite sides of the fabric around an inserted coil spring to hold the strip in position favorable for the cross-stitching of the plies alongside the spring;

Fig. 35 is a plan view of a portion of a partly fillled and stitched strip, illustrating the single and double lines of stitching emp y Fig. 36 is a longitudinal section through the left hand portion of Fig. 35 on the line 3636 of said figure;

Fig. 37 is a transverse section through an open portion of the strip on the line 3737 of Fig. 35;

Fig. 38 is a transverse section through a closed portion of the strip on the line 38-38 of Fig. 35;

Fig. 39 is a transverse section on the line 3939 of Fig. 35, the same being a longitudinal section through a filled and closed pocket;

Fig. 40 is a plan, broken out between its ends, of a completed and severed short filled strip, representing the final product of the machine.

GenemZ organization Referring first to Figures 1, 4, 5, 6, 8 and 9, I will first briefly identify the several principal cooperating mechanisms making up the complete machine, and I will then proceed to a description of these mechanisms in detail. 1 designates a flat rectangular base plate or platform, on one of the rear corners of which is mounted an automatic spring coiling machine designated as an entirety by A. Mounted on and extending lengthwise of the front of the platform 1 is a folded-fabric guide and carrier, designated as an entirety by B, the same including a continuously traveling group of sprocket chains cooperating with a corresponding group of supports which respectively engage with the folded edge and the free edges of the two-ply fabric strip and by means of pins carried by thechains advance the strip over the respective supports, maintainin the free edges of the strip suitably space for the insertion of coil springs therebetween. Back of the fabric guide and

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2647671 *Dec 15, 1947Aug 4, 1953Mcinerney James LSpring loading machine
US2663475 *Sep 12, 1949Dec 22, 1953Mcinerney James MSpring pocket filling machine
US5699998 *Feb 1, 1994Dec 23, 1997Zysman; MiltonManufacture of pocket spring assemblies
US6260331Feb 10, 2000Jul 17, 2001Sidhil Technology, LlcMethod and apparatus for the manufacture of pocketed springs
US6315275Mar 22, 1999Nov 13, 2001Furniture Row Technologies, LlcPocket spring assembly and methods
US6591436Jun 19, 2001Jul 15, 2003Spuhl Ag St. GallenSide seam pocketed coil springs
US6698166Oct 8, 2002Mar 2, 2004Springquilt Industries Ltd.Pocket spring assembly and methods
US6834477 *Jun 11, 2002Dec 28, 2004Spuhl AgMethod and system for forming strings of pocketed coil springs with traction mechanism
US20040103618 *Jun 11, 2002Jun 3, 2004De Santis UgoMethod and system for forming strings of pocketed coil springs with traction mechanism
WO1999025647A1 *Nov 12, 1998May 27, 1999Knoepfel HansMethod and device for providing springs on a continuously fed folded strip of material
WO2002102668A1 *Jun 11, 2002Dec 27, 2002Spuhl Ag St GallenMethod and system for forming strings of pocketed coil springs with traction mechanism
Classifications
U.S. Classification53/418, 53/114, 53/138.5, 53/455, 53/450, 53/562, 53/550
International ClassificationB68G9/00
Cooperative ClassificationB68G9/00
European ClassificationB68G9/00