US2522833A - Handle for sewn valve bags - Google Patents

Description

p 1950 M. MACCAFERRI 2,522,833

HANDLE FOR SEWN VALVE BAGS Filed June 11. 1948 lnnmmluinuu 11 Ill 1 JNVENTOR. v 11/6/06! 6 77"! Cd Q Patented Sept. 19, 1950 UNITED STATES PATENT OFFICE HANDLE FOR SEWN VALVE BAGS Mario Maccaferri, Rye, N. Y. Application June 11, 1948, Serial No. 32,379

sets with the laterally overhanging sewn plies.

form a structure which may be termed generally a pigs ear due to the resemblance of the structure thereto.

This overhanging of the sewn plies over the spaces formed by the gussets present some difficulty in the carrying of the bag by gripping the sewn plies by hand. If two fingers, one on each hand, would be inserted in the gusset, it would not be practical as too cumbersome. The concept underlying this invention is to anchor to the sewn plies a handle at a point as far inward of the gusset space as possible and yet permit a tilting movement of the handle without it being obstructed by any part of the bag, in order to enable the other end ofthe handle to be anchored to the other end of the sewn plies inwardly of the gusset space as far as practical without that other end of the handle being obstructed by that other end of the sewn plies. The handle itself when vertically disposed is substantially O shaped. Thus the anchoring end of the handle has a pivoting action in the application of the handle. Also, the anchoring at the points indicated and the weight of the bag upon the handle at its bag contacting points, causes the forces to be distributed from the anchoring point below the sewn plies and translated to the plies of the bag forming the gusset with the forces assumed by transposed walls of the gussets in a gradual manner instead of suddenly, whereby tearing is prevented. I i

The invention consists of a hand gripping portion having lateral extensions with bag engaging parts below the sewn plies and within the space formed by the gusset below the sewn plies, with a spaced portion between said parts and the gripping portion to permit a tilting movement for the entrance of one of said parts, and a spaced portion at the other end to permit entrance of the other part into the gusset space and below the sewn plies, so. that the other part of the handle may be anchored to the lower surface of the sewn plies.

An embodiment of the invention in a plastic handle presents a special construction to resist strains and stresses, with strengthening ribs and Such a handle has a hand,

gripping portion of rounded contour to make it i 2 agreeable for the hand, and then a vertical we with flanges resembling an I beam extending laterally of the gripping portion and of ire-entrant shape, with a narrow bight preferably with one or more teeth to engage the bag. H

The invention will be further described, embodiments thereof shown in the drawings, and the invention will befinally pointed out in the claims.

In the accompanying drawings;

Fig. 1 is a perspective view of an improved handle applied to a bag, partly broken away;

Fig; 2 is a front view of one embodiment of a handle removed from the bag;

Fig. 3 is a section taken on line 3-3 of Fig. 2-;

Fig. 4 is a section taken on line 4-4 of Fig. 2;

Fig. 5 is a section taken on line 5--5 of Fig. 1;

Fig. 6 is a partial perspective taken on line 66 of Fig. 2;

Fig. 7 is a section taken on line l--'! of Fig. 6;

Fig. 8 is a partial front view of another form of handle; I

Fig. 9 is a partial view of another form of handle;

Fig. 10 is a diagrammatic diagram of the operation of the parts; and v Fig. 11 is a partial view showing the tooth of the handle engaging into the gusset.

Similar characters of reference indicate corresponding parts throughout the various views.

Referring to the drawings, the handle ID has a gripping portion H for the hand, and lateral extensions l2, with dependent re-entrant jaws I3 having teeth 14. The lateral extensions l2 are in a direction as indicated by the dot-dash lines l5inFig. 2.

In bags used to convey fertilizers, food compounds, fiour, cement, plaster of Paris, and other powdered material or compounds used for commercial purposes, the open ends of the bag made of several plies of paper, after the bag has been filled, usually by automatic machinery, are joined together by stitching. The overlapping parts of the seamed ends extend over a gusset portion of the bag. The character of this sewn top is such as to be resistant against tearing by the tension on the paper or the like of the bag whenthe weight of the contents pulls on the paper near the upper sewn top. For instance, if the seam could be gripped by the hands, the weighted bag could be supported and conveyed without the bag material tearing. However, the seam is relatively narrow and provided a poor gripping surface for the fingers.

The improved handle is intended, to avail itself of the characteristics of the bag as described, and as handles of this kind require compliance with economicldemands, such as cheapness, and plastic material meets theserequirements, the problem was to conceive a structure which provided cheapness in manufacture, with strength of resistanceto tearing strains.

The improved handle has its gripping portion ll, formed of a rectangular shaped panel formed of a web 2|, and with rounded flanges 22. The rounded parts make it agreeable to the hand. If desired four finger grooves may be provided on the bottom of the gripping portion. Below the gripping portion is a space 23. Each end of the gripping portion has an extension I2 formed of a web with a rounded flange 26, and a flattened flange 2'! at right angles to the web. These flanges 26 and 2'! extend around the lateral tips of the extensions and then inwardly, along the jaws l3. Each jaw I3 has a bevelled top portion or anvil 28, lateral flanges 29, and a web 30, which is a continuation of the web 25, the flanges 29 being a continuation of the flange 21, and the Web being a continuation of the web 25. Upon the anvil 23, teeth i4, four in number, are provided. The anvil 28 inclines downwardly from the outer end inwardly. In the embodiment, Fig. 2, four teeth are used with their tips in a straight line 3|, inclining downwardly. The smallest tooth I4a, extends furthest inwardly of the bag gusset, and the inclination as shown by 1 tips I4b, 14c and I 4d, is for holding the bag at the undersuriace of the sewn plies, in an inclined position, the sewn plies being allowed to gather together, particularly when the width of the handle is somewhat smaller than the width of the bag.

.As an alternative the anvil may be arranged more horizontally, and one tooth may be used (Fig. 8).

The gripping portion l l with the lateral extensions I2 is above the seamed bag, and the jaws are inserted into the gussets of the filled bag below the seamed top 35, and as the seamed top yields laterally from end to end when lateral pressure is applied, the longitudinal length of the improved handle may be made slightly smallwidth of the bag taken at the inner walls of its gussets.

The angle between the lateral portion 12 and the jaw I3 is rather sharp with a small rounded apex to permit a slight stretching action. The

lateral portion 12 is shaped to provide a space between it and the jaw so that a substantial bight is provided. The length of the jaw is about one half of the length of a lateral portion. The walls of the bag forming the gusset and joined by the sewing or stitching are anti-clinical, that is they have an inclination in opposite directions. parts are so grouped as to have the general outline of an arch. In consequence, when a jaw enters the same, the resistance to the forces result- These ing from the weight of the bag contents on the plies of the bag, is supported by the jaws.

In Fig. 9 is shown one end of a handle made of several plies of plywood joined together by an adhesive. The jaw 40 has a tooth 4|, and between the jaw 40 and the gripping handle 42, a widely curved depending part 43 is provided. Thereby a space 44 is provided to enable a play therein for the end of the sewn bag end.

In Fig. 10, a handle 45 has a gripping portion 46 of a bored wooden cylinder, through which a strong weight resisting wire 41 passes, having two ends 48, each end having a jaw 49, extending from an inturned part 50, with the wire 41 curved to provide a space 5| for the end of the sewn end 35 of the bag 35a which is of several layers or plies 35b (Fig. 5)

In Fig. 11 is shown a part of the sewn bag top 35 of the bag 3511, with the gusset 55 formed by the bag, and the manner of the curved shaped end of the handle entering the anti-clinical gusset 55, and engaging the lower surface of the sewn end 35. When the weight of the filled bag is applied to the handle, the walls of the gussets dispose themselves resiliently to take up the weightstrains or forces, and by displacement of the same, the forces are distributed to the walls of the bag.

The anchoring or supporting action is such as to provide a distribution of the reaction forces preventing the tearing of the plies of the bag.

Thus, when a customer desires to carry a bag of 25 pounds or less, one jaw is inserted into one gusset, and then into the other gusset, and if the handle is somewhat less in width than the Width of the bag, the sewn end plies, are somewhat crumpled.

Heretofore when customers purchased 10 or 25 pound bags, it was necessary to wrap them in paper and tie the package with strings. The use of this handle saves time of wrapping and unwrapping.

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described for obvious modifications will occur to a person skilled in the art.

I claim:

1. In a handle for bags of the sewn valve type, the combination with a centrally disposed hand gripping portion, of a curved portion at each lateral end of the hand gripping portion, for the entry therein of a lateral end of the sewn top of the bag, to envelop an end of the sewn bag, and a bag engaging portion connected tangentially to each lower end of the curved portion, and adapted to engage the lower surface of the sewn top of the bag, and each of said bag engaging portions having an upper surface extending inwardly from the curved portion towards the vertical median line of the handle and having a tooth projecting upwardly from the inwardly extending surface to engage said lower surface of the sewn top of the bag enveloped by the curved portion.

2. The structure of claim 1, in which the handle is of a plastic material and the gripping portion is flat with a top and bottom rounded portion with lateral strengthening flanges, and said curved portion, has webs and spaced flanges at right angles thereto, and said bag engaging portions has webs and flanges at right angle thereto in continuation with the webs and flanges of the curved portions.

MARIO MACCAFERRI.

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

UNITED STATES PATENTS Number Name Date 1,166,841 Leech Jan. 4, 1916 2,285,399 Arneson June 9, 1942 FOREIGN PATENTS Number Country Date 22,675 Norway Oct. 14, 1912

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