US2178887A

US2178887A - Binder

Info

Publication number: US2178887A
Application number: US272407A
Authority: US
Inventors: Fabry Herman
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-05-08
Filing date: 1939-05-08
Publication date: 1939-11-07
Anticipated expiration: 1956-11-07

Description

Nov. 7, 1939.

H. FABRY BINDER Filed May 8, 1939 my' BY i INVENTOR.

ATTORNEY Patented Nov. 7, 1939 TES .n rrete sr -e-ENT oF-Fice f3 Claims.

My invention relates to binders 'for loose leai` sheets, and particularly those utilizing the socalled plastic binding. This binding consists of a length of iieinble'material bent into tubular form, a portion oi the material being cut away to provide a series of iingers that engage with erforations in the sheets to be bound.

The binding, such as described, is common and vin extensiveluse and this invention relates to means for providing a cover or backing that will conceal the hinge element or binding and that will provide extremely simple means for holding the bound unit in the case or backing.

In binders of the type described, it is common to provide a backing or cover for the sheets that are held by the described binding but in each thereof it has been found necessary to provide rivets that project through the back edge, thus marring the appearance and adding to the construction cost.. I am able to avoid this diiliculty by providing a single metal member of curved cross-section, the curvature being the same as that of the plastic binding element. This metal member may readily be glued securely to the material composing the backing, the resulting structure having a curved outline or contour corresponding substantially to the natural curvature of the edge of the structure.

An important element in connection with my improved binder is the fastening or connecting device that serves to join the bound bundle to the backing or cover. This comprises a single iieXible wire having an initial camber, the mounting of the wire at one end being such that the wire cannot be rotated. Thus the bend in the wire is always in the same position; that is, it extends upwardly or away from the bottom of the shallow channel or support. This is essential since the additional bend necessary to unseat the fastening could only be made upwardly or away from the floor of the strip. At its opposite end the wire has a button or head having two diameters. The portion of largest diameter is arranged to t easily within an undercut recess in an end bracket on the support, the portion of smaller diameter being arranged to pass freely through the narrow neck of the undercut recess. 'Ihus by slight pressure on the end of the button, the bend or camber of the wire is increased, permitting the button to be readily disengaged from the fastening. The bending of the wire accomplishes' another purpose in that it insures that the contact of the binding tube is at the extreme ends only of the wire. Consequently a very great force would be required to cause suiliby reference to the accompanying drawing, in y which:

Fig. lis a plan view of an open binder constructed in accordance with my invention;

Fig. 2 is a sectional View, greatly enlarged, on the line 2-2 of Fig. l; and

Figs. 3 and' 4 are sectional views, also greatly enlarged, on the lines 3 3, 4-4 of Fig. 1.

In the drawing I have indicated a number of sheets lil which may be of any desired form, for the accommodation of photographs or otherwise, the sheets being perforated, as shown, and engaged by a so-called plastic binding member. This member is composed of flexible material such as Celluloid, having a solid portion II and a divided portion forming ngers l2, the member being rolled into a tube, the iingers I2 overlapping the solid portion II. By the use of a simple tool, the tube may be expanded to enable the removal and replacement of the sheets as' required.

` The binder of my invention comprises a strip of substantially the length of the binding, the back I3 of the strip being arcuate in cross section and terminating in brackets I, I5 at opposite ends. This curved strip is adapted to be glued by a sheet Il which overlies the metal strip. Due

to the curved outline of the strip and the ar-v rangement of the parts, the cover may be securely joined without the use of rivets that project through the binding edge.

Connected to the bracket I4 in such manner as to provide for limiting freedom of vmovement but so as to prevent rotation is a spring wire I8. As a preferred means for attaching and preventing rotation I provide the wire with an offset end I9 which is held in a pocket provided in the bracket I4. It will be noted by reference to Fig. 2 that the wire I8 is initially bent to lie in the position shown in the said igure; that is, With its middle portion` projecting above the floor of the binding member. In this position the wire has ample space to receive the additional bend necessaryto free the attaching means; there is no such space downwardly or sideways. At its opposite end the wire has a button or head hav- I greater in width than the small diameter 2| of tthe button. Normally the wire will remain in the full line position f Fig. 2 With the button engaging the bracket l5. W'hen, however, a slight thrust is exerted on the button the camber of the wire is increased as indicated in dotted lines in Fig. 2 and the small diameter of the button will be opposite the narrow portion 23 of the recess, enabling the button to be readily disengaged from its fastening.

It will be noted that the curvature of the back piece I3 is substantially that of the binding tube. Thus the tube will readily seat itself in: position and be maintained in a snug t by the Wire which engages the extreme ends of the tube.

By examining Fig. 2 it will be seen that any force exerted by the bound structure against the wire will be exerted at the two extremeends to which point there will be no tendency to further bend the wire and practically no force will be suiiicient to cause disengagement of the wire.

I claim:

1. In a binding means adapted to hold a plurality of sheets through perforations, and including a cover member having an attached strip provided with upstanding ends, a cambered wire adapted to receive said binding member, one end of said Wire being non-rotatably attached to one upstanding end, a button fixed on the other end of said wire adapted to be engaged with and disengaged from the other upstanding end by changing the camber of the wire.

2. In a binding means adapted to hold a plurality of sheets through perforatons, and including a cover member having an attached strip provided with upstanding ends, the strip being curved in cross section to provide a conformable seat for the binding member, an upwardly cambered wire adapted to receive said binding member, one end of said wire being non-rotatably attached to oneY upstanding end, a button xed on the other end of said wire adapted to be engaged with and disengaged from the other upstanding end by changing the camber of the wlre.

3. In a binding means adapted. to hold a plurality of sheets through perforations, and including a cover member having an attached strip provided with upstanding ends, a cambered wire adapted to receive said binding member, one end of said wire being non-rotatably attached to one upstanding end, a button fixed on the other end of said Wire, the other upstanding end having an undercutrecess and said button having portions of two diameters, the portion of smaller diameter being adapted to pass through the narrow portion of the recess when force is exerted longitudinally of the Wire to increase the camber therein.

HERMAN FABRY.