US3206100A - Packaging box - Google Patents

Description

Se t. 14, 1965 H. WENGER PACKAGING BOX Filed Jan. 7, 1965 INVENTOR. #421 I E/V651? BY W W United States Patent 3,206,100 PAQKAGING BOX Harry Wenger, 257 7th St., Clifton, NJ. Filed Jan. 7, 1963, Ser. No. 249,800 1 Claim. (Cl. 22944) This invention relates to a packaging box for the packaging of consumer products and the like and from which the product is dispensed as required, and the invention is an improvement on the invention patented 1n my Letters Patent No. 2,764,338.

An object of the invention is to provide a packaging box having a closure providing a discharge opening and which closure has novel means adapted to resiliently maintain the same in closed and open relations.

Another object of the invention is to provide a packaging box having a closure consisting of a hinged wall portion which is resiliently biased by novel means into open and closed relations and is adapted to resiliently spring to open relation by pressure applied thereagainst.

Still another object of the invention resides in novel means which is biased longitudinally and transversely for producing a snap spring action of the hinged wall portion into open relation.

Still another object of the invention is to provide the hinged wall portion of the packaging box with an elongated resilient member of spring metal and the like which is tensioned to bias the same into longitudinally curved or angular formation and which is deformed in cross-section to bias the same into straight formation whereby the hinged Wall portion is adapted to spring from closed to open relation by pressure applied against said resilient member.

With the foregoing and other objects in view, reference is now made to the following specification and accompanying drawin s in which the preferred embodiment of the invention is illustrated.

In the drawings:

FIG. 1 is a fragmentary perspective view of a packaging box constructed in accordance with the invention and showing the closure means in closed relation.

FIG. 2 is a similar view showing the closure means in open relation.

FIG. 3 is an enlarged fragmentary vertical sectional view taken approximately on line 3-3 of FIG. 1.

FIG. 4 is a horizontal sectional view taken approximately on line 44 of FIG. 1.

FIG. 5 is a perspective view of the spring strip which is tensioned to bias the same into longitudinally extending angular formation.

FIG. 6 is a perspective view illustrating an alternate form of tensioning the spring strip for biasing the same into longitudinally extending bowed formation.

FIG. 7 is a perspective view of the spring strip which is spring tensioned as shown in either FIG. 5 or 6 of the drawings and is subsequently bent transversely into obtuse angular relation to bias the same into straight formation against said tension.

FIG. 8 is a perspective view of the spring strip showing an alternate form of bending in which the spring strip is spring tensioned as shown in either FIG. 5 or 6 of the drawings and is subsequently bent into arcuate shaped formation in cross-section to bias the same into straight formation against said tension.

FIG. 9 is a view in said elevation of a packaging box showing a modified form of discharge closure means constructed in accordance with the invention.

Referring to the drawings, and more particularly to the form of the invention shown in FIGS. 1 to 8 inclusive thereof, the packaging box 10 is of the type adapted to contain products which are usually dispensed from time 3,206,100 Patented Sept. 14, 1965 to time as required. The box may be of any desired construction having a closure consisting of a hinged wall portion 11 forming a part of a side wall 12 and which side Wall may be precut therethrough continuously along opposite side edges 13 and 14 thereof and along the top edge 15 to form said hinged wall portion which is movable from planar relation with said side wall to open angular relation therewith to provide a discharge opening 16 from which the contents of the box may be discharged as desired. Instead of precutting the side wall 12 along the edges 13, 14 and 15, the same may be scored or weakened along said lines to permit of the convenient slitting thereof.

In order to provide means for biasing the hinged wall portion 11 into open and closed relation, the packaging box is provided with an elongated spring strip 17 of metal or the like, which is secured in any desired manner against the outer face thereof with the upper portion of said spring strip secured against said hinged wall portion 11 and the lower portion of said spring strip secured against said side wall below the hinged wall portion. The metal strip 17 is pretensioned to bias the same into longitudinally bowed or angular formation as shown in FIGS. 5 and 6 of the drawings. The metal strip so tensioned is bent throughout its length and in the opposite direction from the above-mentioned longitudinal bend into concave or angular formation in cross-section as shown in FIGS. 7 and 8 of the drawings respectively so as to bias said strip into longitudinally extending straight formation as shown in FIG. 1 of the drawings so as to resiliently maintain the hinged wall portion 11 in closed relation.

I The spring strip 17 may be secured in operative positlon against the side wall 12 by an overlay 18 of thin sheet material or the like which extends into overlying relation with the adjacent portions of the top wall 19 and opposite side walls 20 and 21 of the packaging box, and covers and closes the edges 13, 14 and 15 of the hinge wall portion 11. This provides means by which the overlay 18 may be conveniently slit along said edges to permit of the swinging of the hinged wall portion 11 into the open relation on the hinge line 22 as shown in FIG. 2 and FIG. 3 of the drawings. The overlay 18 which may be of transparent or of opaque material retains the spring strip 17 with the bottom face thereof arranged innermost so as to provide a cavity 23 therebetween.

It will be understood that the spring strip may be tensioned to bias the same into the longitudinally bent formation shown in FIG. 5 of the drawings or in the longitudinally bowed formation shown in FIG. 6 of the draw ings and either of these may be bent transversely into angular relation in cross-section as shown in FIG. 7 of the drawings or in arcuate formation in cross-section as shown in FIG. 8 thereof. Both of these forms function to bias the spring strip in normally straight formation as shown in FIGS. 7 and 8 of the drawings respectively against the tension which biases the strip into the bowed or angular formations shown in FIGS. 5 and 6 of the drawings. Thus, the spring strip functions by snap action to spring the wall portion 11 into open relation as shown in FIG. 2 of the drawings when pressure is applied thereagainst in the region of the word Press which may be printed or otherwise applied thereto below the hinge line 22. The spring strip also functions to resiliently retain the wall portion 11 in the open relation shown in FIG. 2 of the drawings and in the closed relation shown in FIG. 1 'of the drawings in which the side edges thereof are substantially sealed to prevent the entrance of moisture, dust and the like.

Instead of the hinged wall portion 11, the packaging box may be constructed as shown in FIG. 9 of the drawings in which the opposite side walls 30 and 31 thereof are precut continuously along the lines 32 and 33 and the narrow side wall 34 is precut along the line 35 to provide a closure in the form of a hinged upper portion 36 which may be swung upwardly to form a discharge opening through which the product may be dispensed. The rear wall 37 is provided with a spring strip 17, as in the previously described form of the invention, which is secured thereto in any desired manner and extends into overlying relation with the rear wall 38 of the hinged upper portion 36 to retain the same in normally closed relation and which functions by snap action to spring the hinged upper portion into the open relation shown in broken lines in FIG. 9 of the drawings. As illustrated, the spring strip 17 may be retained in operative position against the rear wall 37 of the box and in overlying relation with the rear wall 38 of the hinged upper portion 36 by means of an overlay 39 of sheet material or the like which closely surrounds and fits the upper portion of the packaging box and seals'the precut edges 32, 33 and 35 during shipment and until the product contained therein is to be used by the consumer. In order to discharge the contents of the box, the overlay 39 may be conveniently out along the lines 32, 33 and 35 to permit of the swinging of the hinged upper portion 36 into open relation by pressure applied against the spring strip as hereinbefore I described.

There is thus provided a packaging box having a closure adapted to form a discharge opening when in open relation and which is resiliently maintained in opened and closed relation by means of said spring metal member 7 open relation, and which is biased to closed relation when the tension of said spring member is overcome by pressure thereagainst.

While the preferred forms of the invention are shown and described herein, it is to be understood that the same is not so limited but shall cover and include any and all modifications thereof which fall within the purview of the invention.

What is claimed is:

In a packaging box having side and end walls and a closure formed as a part thereof and hingedly connected therewith for swinging movement from open to closed relation and providing a discharge opening when in open relation, an elongated spring strip mounted longitudinally against said closure, said strip being formed by being worked until there is imparted thereto a normal bias to effect a longitudinal bend therein and then apparently removing said bias by bending the strip reversely in cross section whereby the normal longitudinal bias will be returned when pressure is applied to remove the bend in cross section.

References Cited by the Examiner UNITED STATES PATENTS 940,634 11/09' Davis 22917 2,294,964 9/42 Davidson 229-17 2,764,338 9/56 Wenger.

2,960,264 11/ 60 Walter 22944 FRANKLIN T. GARRETT, Primary Ex miner.

EARLE J. DRUMMOND, Examiner.

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