US2437617A - Post binder mechanism - Google Patents

Description

March 9, 1948. J, SCHADE POST BINDER MECHANISM 2 sheets-sheet 1 Filed April 15, 1946 llllllll INVENTOR- Jobw 60MB:

ATTOR EYS March 9, 1948. J. SCHADE 2,437,617

POST BINDER MECHANISM Filed April 15, 1946 2 Sheets-Sheet 2 INVENT OR Johw Jamal TTORN Y5 Patented Mar. 9, 1243 2,437,617- ros'r- BIN MEQHA FQY J ch1 had l i ke s-(a i to N t a1 Blank Book Company, Holyohe, Ma's's. ,a corporation of Massachusetts Application Aprillfi, 1946, Serial No. 662,252

This invention relates to improvements in post binders of the same general type, as that shown by prior patent to Schade No. 2,2 llj,5l 7 ofl9 4= 0 and other granted patents, such as Patent No. 2,125,048 of 1938 to G. E. Hamlin.

The purpose is to provide a better latch mechanism for binding and releasing the posts in the binder, The improved binder is better from the users standpoint in that it is more convenient to use, is not so likely to get out of order, and it will last longer without repair or replacement of parts. While it may cost a little more for the maker, this can not be anywhere near enough to offset the goodwill he will get by furnishing the user with a better operating structure to last longer than the prior art binder.

The improvement consists in the detail relation of parts making the new combination. An example of the combination and the detail relation to make it, is given by the drawings and the description.

Fig, 1 is a back view of the binder assembly with the cover of the top binder tube cut away to show the parts of the mechanism;

Fig. 2 is taken on line 22 of Fig. l to show a top view of the mechanism in the binder tube;

Fig. 3 is a View on line 3--3 of Fig. 1 to show the binder tube and latch releasing slide in cross section; I

Fig, 4 is a perspective view of the releasing slide;

Fig. 5 is a fragmentary detail View showing a latch plate cammed in post-releasing position; and

Fig. 6 is a fragmentary end view to show a modified form of a post releasing actuator means.

As shown in Fig. l a pack of loose leaf sheets I is threaded on posts 2 between the lower binder tpbe or bar 3 and upper binder tube 4. These iunction as holding strips or bars. As shown in Fig. 3, they are made by turning a fiat metal strip into a flattened tube form.

Posts 2 are suitably secured to binder tube 3 by rivets or otherwise as desired. Tube 5 is provided with holes 6 to receive the posts 2[ This tube is releasably secured to the posts by postlatching mechanism to be described.

A latch release slide '7 shown in perspective by Fig. 4, and in cross section by Fig. 3 as it lies inside tube 4, is a shallow U-shaped metal strip with the longitudinal portion 8 of inverted U- shape to form narrow channeled portions 9 on each sid for the bearing surfaces to slide in binder tube 4. Slide 1 is positioned in tube 4 (Figs. 1 and 3) and is slida-ble in this tube A between a post-latching and. post-releasing position.

A latch plate as with a post hole H, Fi s. 1 2 and 5, has a narrowed portion H! with two prongs l3, Fig. 2, by which plate It is pivoted on a frame tame up 2 5. r h n d el as resides w th re ee i s t 2- Th itta e; r h a t l are. c in e-sn re biibt em lh ram 5. seated n' e better; 9 b 4 and me I thereto by u ta le means. sin e the igh if t e. fpr fsbt a ms Qi L were i r es than h mine d mens p f th b nd tube, I re e is lumb a ei init oeb of th e fraine iii s that when the frame isplaced i p iiq i th was sw p s Q b r ed Q1. um ed in a at 99 5 Vi fi slot thereby holding the frame against longitudirial movement in the tube." The framesfhowevel, "c'e' tp aibe a if preferred. by retainin Screws mentioned, t e arm or e 'l a e. of a pr xim te h i he as the interior oi'tube 4. "Thereforefth'e rongs maybe fastened in pla [3 are f n tche 1 h i l fi i i t ihetf sa i i list n plate It is normally held in a canted oo te i t h fie"psi i'p i; in Figt'i; mechanism for "doingthisis best shown i the en 'dview of Fig.5, the 'plat'l-ll' in thatview e, gin post releasing posi ion." A spring we the case a the "fr melsfa d y a hook is of metal cut and'brit'fror'ri the narrowed portion r t an" adjacent its hole g i." The spring. is tends to pull the plate It! downwardly cantingthe plate'on its'pivot in frame i5 as described.

latching ass'embly as described is provided for each post 2"andfas shownin Figs, 1 andz, each such assembly islocated' on the corresponding side of ejach pos't hole so that as the latch release slide T isnioved-to'the right (see Figs, 1 and the slide will cause both plate Hl'to .b'e cammd'into post releasing position'simultaneouslyina'wa'y tote described. It will'b e noted infFi'g. 4 that openings i9 and it provided in'sli'deTstraddle the'latching units. portions 2| 'alongsi-dethese' openings move with slidedfand wheiimovd with the slide to the rightfrom'thepositionin Fig. 1, camfthe latchplate m"cuter-" ngagement with the posts. Carri portions}! are formed from metal of slide 1, Fig ff' lhey are bent "upwardly 'from the m; openings I -9"arid 2B. "The openings are positioned in 'slide 1 new thelatchin i s-s:ernbly. As shbwamm' portions 2] stand vertically'toiform inclined planes onwhioh a'latch plate l0 may ride. In this construction I have turned the SlantingedgeS Of th cams 2|, as at 22ftd a, "arigle with the planeof the vertical portions. In this'way Ihavep'ro'vided a smoothimt'al'surface'on which the latch plate ill may ride. I hei'e is less frictional resistance. Portions :23 "are iii rehea sin o e i L9. as 21!! t s v as u des assassinate slide! in proper alignmentto' each frame l5 for relative sliding movement.

Slide 1 is normally urged to permit. plates ID to grip posts 2, as in Fig. 1. The slide is urged, as stated, by spring 24 fastened between a hook 25 punched from the metal of slide 1 and the anchor I1 of frame 15. A notch 26 is cut in the inner edge of opening 19 to accommodate the hook ll, Outward movement of slide 1 under tension of spring 24 is to the left in Fig, 1, and is limited by the inner edge of opening (9 striking against the edge of frame 15. On the end of slide 1 an actuator 21 extends from the open end of tube 4.

To operate slide '1 to post release position, to cam the plates I out of canted position with respect to the posts, finger pressure on the actuator 2'! is exerted inwardly of tube 4. The tube 4 may be lifted ofi the posts when plates are put out of their canted positions by cam portions 2|. Actuator 2'1 is formed by turning over the metal of slide 1 or by providing any suitable cap therefor which may be pushed into the end of tube 4 against the spring action of spring 24.

A modified form of the post releasing device is shown in Fig. 6. In this form both ends of tube 4 are capped, the same as the one shown. An actuating button 28 in a slot 29 cut in the top of tube 4 is fixed to a slide lever 30 on slide 1 for moving the latter to post release position against the action of spring 24.

By making the construction of parts for a post binding mechanism as described above, a post binder of superior lasting qualities is provided. The binder will endure hard usage without causing malfunction and failure of parts. The simplicity in construction and ease in operation of the latching and releasing elements make a smoothly functioning article which will stand up longer in use and give more satisfactory service than any prior devices, now known to me.

Having disclosed my invention, I claim:

1. In a post binder of the type having posts, a bottom bar holding the posts, a removable top tube with cross holes to receive the posts, and latch mechanism in the tube to latch it on the posts, the combination of a flattened top tube, a

sheet metal slide with a multiple open channel.

section arranged with a central inverted U- shape channel portion and narrow U-shape portions on each side, the latter portions fitting the bottom and sides of the tube for longitudinal guided sliding movement without much friction, said slide having substantial openings for the posts in the sliding relation, bent vertical portions of the slide formed with slanting cam edges in the longitudinal relation to the tube and adjacent the side edges of said openings, means including a spring to hold said slide in one position of adjustment with relation to said posts, a

latch plate for each post, means to pivot the latch plate for movement to horizontal and canted positions with relation to the post, such latch plate having a post hole with edges adapted to bind on the post in canted, and free the post in horizontal position, a spring for each plate to urge it to canted position to hold said cam edges near said plates when in canted position, and a finger actuated piece to move the slide to a second position of adjustment relative to said posts against its spring means to move the cam edges against said plates and the latter to horizontal position against their springs.

2. In a post binder of the type described the f combination of a top tube, a shallow channel section sheet metal slide fitting transversely in the bottom of the tube for most of its length and adapted for finger actuation, said slide having a reverse channel section bent up from its lower side, a substantial opening adjacent each end of the slide, vertical inclined cam portions struck up from the metal of said reversechanneled portion and arranged longitudinally at the edges of said opening, pivot supporting means adjacent said openings, a latch plate for each opening pivoted on said means, a spring for each plate urging it out of horizontal position into canting and latching position with relation to a post, said inclined cam portions adapted upon the movement of said slide to move the latch plates to horizontal and unlatching positions with relation to their posts, spring means normally holding the parts in latching position, said slide and parts adapted to move the plates to unlatching positions upon finger actuation of said slide.

3. In a post binder of the type described the combination of a top tube having one of its ends open, a shallow multiple channel section sheet metal slide with a reverse U-shape channel section bent up from its lower side leaving relatively narrow channels adjacent each of its upright sides, said slide fitting longitudinally in said tube for most of its length, a finger actuated piece attached to each slide and extending from said open end of the tube for moving said slide inwardly of the tube on said narrow channeled portions from one position of adjustment in the tube to a second position, said reverse channel section being cut away to provide openings for registration of a post in said openings in either position of adjustment, vertical inclined cam portions struck up from the metal of the reverse channeled portion adjacent the edges of said openings and arranged longitudinally in the tube, a pivot supporting means fixed in said tube and arranged in said openings adjacent each said post a latch plate pivoted on each said means, a spring attached to each said plate and said means to urge the plates to canted position with relation to said posts and grip the posts against removal of said tube, a spring means attached to said slide and the adjacent pivot supporting means such spring normally urging said slide outwardly of said tube open end, said adjacent pivoting means holding the slide against further outward movement by contact with the inner edge of its adjacent slide opening whereby the slide and latch plate are normally in the first position of adjustment in post latching relation, said slide upon inward pressure of said finger piece being adapted for moving said inclined cam portions to pivot the latch plates to horizontal position with relation to said posts whereby the posts may be freed of the plates and said top tube may be removed from the posts.

JOHN SCI-IADE.

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

UNITED STATES PATENTS Number Name Date 1,498,194 Newman June 17, 1924 1,557,279 Valkenburgh Oct. 13, 1925 2,125,048 Hamlin July 26, 1938 2,208,226 Nelson July 16, 1940

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