US2306710A - Method of making bag frames - Google Patents

Description

Dec. 29, 1942. c. OSTERKORN 1 METHOD OF MAKING BAG FRAMES Filed'Aug. 5, 1941 INVENTOR OSTER/(OEN ATTbRNEY Fatented Dec. 29, 1942 Charles Osterkorn,

Island, N. Y., assignor Maspath, Long Island,

New York Flushing Heights, Long to Frank J. Quigan, Inc,- N. Y., a corporation of Application August 5, 1941, Serial No. 405,478

4 Claims.

This invention relates to frames for hand bags, and more particularly to a method for making said frames.

The invention primarily contemplates a novel method of making a hand bag frame, which consists in producing identical frame elements in straight unbent condition with an integral relatively narrow tongue at one end thereof and with an integral relatively wider tongue having an opening at the other end thereof, forming the wider tongue of each frame element into an eye and bending the narrower tongue at an angle thereof, assembling two such frame elements with each bent tongue engaged in the opening of each eye-formed tongue, rolling said bent tongues around said eyes to form encircling eyes, and bending the assembled frame elements to bring the axes of said eyes in alignment whereby the frame elements are hingedly engaged.

The invention further contemplates a method of making a bag frame wherein th elements of the frame are similar or identical and are assembled in pairs to produce a hinged frame without the use of other interconnected parts.

A further object of the invention resides in the provision of a production method wherein the elements of a bag frame are assembled and interlocked whilst said elements are in their straight unbent condition and before they are bent in the form and shape of a bag frame.

Novel features of the invention reside in the various steps of the method, and in the sequence of said steps.

The invention is further characterized by the fact that a durable and efficient bag frame is produced by an inexpensive and expeditious method.

The foregoing objects, features and advantages and others which may hereinafter become apparent, are realized in the invention, as embodied in the illustrated form shown in the accompanying drawing. The following detailed specification is based on said drawing in which preferred method steps resulting in a finished product, are shown.

In the drawing- Fig. 1 is a side view of a blanked and formed length of material as produced by the first step of the present method,

Fig. 2 is a bottom plan view thereof,

Fig 3 is a typical cross-sectional view as taken in the line 3-3 of Fig. 1,

Fig. 4 is a view, similar to Fig. 2, and showing the condition of the length of material after an intermediate step of the method,

Fig. 5 is a side view illustrating the assembly and arrangement of two lengths of material as formed in Fig. 4,

Fig. 6 is a similar view of said assembled lengths after final forming of the hinges thereon,-

Fig. '7 is a side elevational View of a completed bag frame as produced by the final step of the method, and

Fig. 8 is an enlarged fragmentary sectional view illustrating the details of the hinge.

In that form of the invention which i illustrated, the bag frame element is formed of a fiat strip of meta1 or lik material. This strip, generally designated 10, may be formed as best seen in Fig. 3 with a back wall H provided with a flange l2 along one longitudinal edge thereof and with a base wall l3 along itsother longitudinal edge. The frame element section is completed by the provision of a flange wal1 l4 integrally formed with the base wall IS. The above-described lrame element section, While preferred, may be varied even to the point of omission of all of the walls except the back wall II and the flange l2 as will be understood.

Prior to forming the strip 10 into itsabovedescribed form, it is preferably blanked to form the notches l5, said blanking operation may, if desired, also form the tongues l6. Regardless how the strip is formed and blanked, the first essential step of the present method is to form a longitudinally projecting tongue I! at one end of said strip from the back wall H thereof. Simultaneously with the operation which forms the tongue ll, or in a preceding or succeeding operation, a tab 18 is formed at the other end of the strip, said tab also forming an extension of the back wall ll. As the tab I8 is formed, 2. preferably rectangular opening 19 is formed at the base of said tab, said opening being somewhat wider than the tongue Il and yet leaving the relatively strong connecting portions 20 whereby the tab 58 is firmly connected with the back wall H. Figs. 1 and 2 show the condition of the strip ID after these preliminary blanking and forming steps.

Th above-described strip is ready for the next step in the method which entails bending the tongue H at right angles as at l'i and rolling the tab l8 into an eye It leaving the opening 26 directly adjacent to said eye. After this step of tfie method, the strip appears as shown in Fig.

The next method step entails the assembling of two strips formed as in Fig. 4. The back walls I! of said strips are placed in contact with the tongue ll of each strip disposed in and projecting through the openings 20 of the other strip. Fig. 5 illustrates this condition.

The next succeeding step in the method is to roll each tongue I! around each respective eye l8 to form the encircling eyes M The result of this step is illustrated in Fig. 6.

The final step in the method is to bend the end strip portions H1 at right angles to the middle strip portion at the bend lines 2| to bring the Walls of the notches l5 into abutting contact. This operation being accomplished from the condition of the parts in Fig. 6, provides the completed bag frame which is now ready for use. It will be noted from the condition of Fig. 6, that while the eyes l! and 18 are hingedly engaged, no hinging action can be accomplished. However, after being formed as in Fig. 7, the axes of the hinges thus formed become aligned whereby the frame elements may be swung with respect to each other as dis- .closed in Fig. 8.

The purpose of the tongues l6 now becomes evident, their function being to strengthen the corners of the frame elements as revealed in Fig. 7.

All of the operations and the steps of the method may be carried out by means of tools and dies of form and design within the knowledge of persons skilled in the instant art.

It may be seen from the above that a novel method has been devised for economically and expeditiously producing the novel form of bag frame disclosed herein. While the practical embodiment of the invention described herein, is preferred, it should be understood that the principles thereof may be used in modified form withi in the spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The method of making a bag frame which consists in blanking and forming frame elements in straight unbent condition with an integral hinge portion at each end thereof, assembling two such frame elements with their hinge portions in interlocking engagement, forming said hinge portions into hinges Whilst the assembled frame elements are straight and unbent, and finally bending the assembled frame elements to bring the hinges thereof in axial alignment.

2. The method of making a bag frame which consists in blanking and forming frame elements in straight unbent condition with an integral hinge portion at each end thereof, forming one of said portions into an eye and bending the other of said portions at an angle to the frame element, assembling two such frame elements with each eye-formed portion interlockingly engaged with each respective bent portion of the frame elements, forming said bent portions around said eyes to form encircling eyes, and finally bending said assembled frame elements to bring the axes of said eyes in alignment whereby said frame elements are hingedly engaged.

3. The method of making a bag frame which consists in producing identical frame elements in straight unbent condition with an eye hinge portion at one end and a tongue hinge portion at the other, assembling two such frame elements with each eye thereof engaged with each tongue thereof, forming hinges for said frame by rolling said tongues around the respective eyes, and bending the assembled frame elements to bring the axes of said eyes in alignment.

4. The method of making a bag frame which consists in producing identical frame elements in straight unbent condition with an integral relatively narrow tongue at one end thereof and with an integral relatively wider tongue having an opening at the other end thereof, forming the wider tongue of each frame element into an eye and bending the narrower tongue at an angle thereof, assembling two such frame elements with each bent tongue engaged in the opening of each eye-formed tongue, rolling said bent tongues around said eyes to form encircling eyes, and bending the assembled frame elements to bring the axes of said eyes in alignment whereby the frame elements are hingedly engaged.

CHARLES OSTERKORN.

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