US2550464A

US2550464A - Draw cord anchorage

Info

Publication number: US2550464A
Application number: US718308A
Authority: US
Inventors: Gleave Russell; Edwin A Dickmann
Original assignee: Bemis Brothers Bag Co
Current assignee: Bemis Brothers Bag Co
Priority date: 1946-12-26
Filing date: 1946-12-26
Publication date: 1951-04-24
Anticipated expiration: 1968-04-24

Description

April 24, 1951 R. GLEAVE' ET AL 2,550,464

DRAW CORD ANCHORAGE Filed Dec. 26, 1946 "a n I Patented Apr. 24, 1951 DRAW CORD ANCHORAGE I Russell Gleave and Edwin A. Dickmann, St. Louis, Mo., assignors to Bemis Bro. Bag Company, St. Louis, Mo., a corporation of Missouri Application December 26, 1946, Serial No. 718,308

This invention relates to a draw cord anchorage," and more particularly, to an anchorage for the ends of draw cords of open-mesh bags.

. Among the several objects of the invention may benoted the provision of an improved, more secure anchorage for the ends of a draw cord in 4 Claims. (Cl. 150-11) an open-mesh bag to prevent the draw cord from 7 Fig. 1 is a view of a completed bag embodying the improved draw cord anchorage of the invention; and,

Fig. 2 is an enlarged fragmentary view of the bag of Fig. 1 particularly illustrating the improved draw cord anchorage.

Similar reference characters indicate corresponding parts throughout the several views of the drawings. 7

Fruits, vegetables and the like are often packed in open-mesh bags, such as illustrated at l in Figs. 1 and 2, which have draw cords 3 for closing the mouths of the bags after filling. These bags are generally formed from lengths of openmesh fabric, such as a leno-weave fabric, cut from a continuous web in which the draw cord is pre-woven along one margin. A bag is formed by folding such a length of fabric at 5 to bring the cut ends I of the length of the fabric and the cut ends 9 of the draw cord together, and then stitching the ends I and the bottom margins II to form side and bottom seams l3 and I5, respectively. This results in an open-mouthed bag having draw cord 3 loosely interwoven therein adjacent its mouth.

The ends 9 of the draw cord must be anchored to the bag to prevent the cord from being pulled out when it is drawn up to close the mouth of the bag. The stitching l3 cannot be relied upon for anchoring these ends since it is too coarse, due to the open-mesh characteristic of the bag fabric. Heretofore, the ends have been anchored either by knotting them, or by folding over the corner of the bag prior to stitching, or by having 2 the ends adhered to an adhesive splicing strip as in Geimer U. S. Patent 2,416,747. Knotting is a tedious and time-consuming procedure. The folding procedure is more satisfactory then knotting, but is time-consuming. The Geimer an chorage is available only when a splicing strip is used in the bag seam. This invention provides an improved, secureanchorage for the ends of the draw cord which may be quickly and easily formed without any knot-tying, folding or the like, and without requiring use of a splicing strip.

As illustrated in Fig. 2, the draw cord anchorage of this invention comprises a staple ll driven through the bag fabric and clinched around the ends of the draw cord. and a mass of adhesive l9 adhesively bonding the ends of the cord to the bag. The adhesive is applied over a substantial area surrounding the staple and not only bonds the ends of the cord to the bag but also fills or tends to fill the interstices of the open-mesh bag fabric, as indicated at 2|, to form a stiff matrix in which the staple and the ends of the cord are adhesively embedded. This locally stiffens the bag weave, prevents displacement of the staple relative to the bag by preventing sliding of the staple along the individual strands of the open-mesh bag fabric around which it is clinched, and distributes the load to increase the resistance of the anchorage topulling out of the cord. The result is an anchorage wherein the ends of the cord are securely affixed to the bag to prevent the cord from being pulled out of the bag under the usual amount of force applied to the cord in drawing it up to close the bag mouth. The staple and adhesive are applied outside of the side seam 13, so as not to obstruct the bag mouth.

Cross reference is made to our copending divisional application entitled Method and Apparatus for Anchoring Draw Cords, Serial No. 119,914, filed October 6, 1949, now U. S. Patent No. 2,520,395, issued August 29, 1950.

In view of the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained.

As many changes could be made in the above construction without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

We claim:

1. In an open-mesh fabric bag having a draw cord in the bag fabric adjacent the mouth of the bag, a staple driven through the bag fabric and clinched around the ends of the draw cord, and

tom seams, a staple driven through the bag fabric and clinched around the ends of the draw cord, and a matrix of adhesive applied over a substantial area surrounding the staple bonding the ends of the draw cord to the bag and filling the interstices of the open-mesh fabric to form an adhesive-stiffened portion of the bag in which,

the staple and the ends of the cord are embedded.

3. In a bag formed from a length of openmesh fabric having a draw cord pre-Woven therein along one margin and folded to bring the ends of the length of fabric and the ends of the cord together, said bag having stitched side and bottom seams, a staple driven through the bag fabric and clinched around the ends of the draw cord, and a matrix of adhesive applied over a substantial area surrounding the staple bonding the ends of the draw cord to the bag and filling the interstices of the open-mesh fabric to form an adhesive-stiffened portion of the bag in which the staple, the ends of the cord and a part of the side seam are embedded.

4. In a bag formed from a length of openmesh fabric having a a draw cord pre-woven therein along one margin and folded to bring the ends of the length of fabric and the ends of the cord together, said bag having stitched side and bottom seams, a staple driven through the bag fabric and clinched around the ends of the draw cord, and a matrix of adhesive applied over a substantial area surrounding the staple bonding the ends of the draw cord to the bag and filling the interstices of the open-mesh fabric to form an adhesive-stiffened portion of the bag in which the staple and the ends of the cord are embedded, said staple and adhesive being disposed outside of said side seam.

RUSSELL GLEAVE.

EDWIN A. DICKMANN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Numb P1 Name Date 513,323 Hill Jan. 23, 1894 1,358,582 Salisbury Nov. 9, 1920 1,734,287 Cornell Nov. 5, 1929 1,795,417 Allen Mar. 10, 1931 1,909,206 Meek May 16, 1933 2,020,301 Cundall Nov. 12, 1935 2,034,408 McClure Mar. 17, 1936 2,088,428 McClure July 27, 1937 2,140,672 Gray et a1 Dec. 20, 1938 2,393,151 Debate Jan. 15, 1946 2,406,830 Haman et a1 Sept. 3, 1946 2,416,747 Geimer Mar. 4, 1947 FOREIGN PATENTS Number Country Date 39,525 Sweden Sept. 28, 1911