DE1436227A1 - Fully plastic stapling mechanism - Google Patents

Description

)> '·,' 7 "I vVolf, -Dn .-- τ an Λ ητ» P rl

^ 3. De- -; endorf / Danube
Ludwi ^ -Sbnerstr. 12th

Dr. Expl.

The invention relates to an entirely made of plastic Fully plastic stapling mechanism for lining up staple sheets on fixed ones Line-up tooth halves and with these aligned swivel tooth halves on a common base plate "

In a known line-up device for letter files are metallic Alignment pins are injected into a plastic base plate and the pivot axis the metal mounting bracket in fork-like bearing blocks of the base plate stored. The locking of the swivel axis in the closed position success by a metallic leaf spring in a slot of the Plastic-Grundolattr is attached and with the free end on one Acts cam of the swivel axis.

Furthermore, a ring mechanism made of metal-plastic is known in which Plastic ring halves on white on the left, abutting one another at an angle Plastic support rails are molded and these are inside a special resilient metal housing are clamped like a rocker arm. the The closing movement and the closing pressure take place under the spring pressure of the metal housing on the plastic support rails clamped in at an angle.

These known arrangements are based on the closing pressure by the peder pressure of an additional metallic peder element he follows. These known designs thus consist of several parts, are expensive to manufacture and the metal parts are also susceptible to corrosion.

In contrast, there is the construction for the VoILplastik stapling mechanism ^ em according to the invention of only two plastic injection molded parts, welohe The fully plastic stapling mechanism can be locked without an additional resilient metal element in the open and closed position, »The ·· Full plastic Heftraeohanik is not only on the so-called Ringmeohanikeii limited, but also usable for the letter folder mechanisms and, in the broadest sense, usable for all stapling mechanisms for lining up pre-paid ones and loose leaflets.

-Z- BAD ORIGINAL

009846/0001

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The basic structure of this fully plastic stapling mechanism according to the innovation exists from two injection molded parts, namely a base plate with molded onto it fixed serration tooth halves and the molded spreading bearing, as well as the injection molded part for the pivot tooth halves consisting of the Pivot axis and the pivot tooth halves molded onto it, as well as operating levers molded onto the pivot axis, if necessary. The two Injection molded parts are each made of a rigid, resilient plastic ", The row tooth halves and the pivot tooth halves preferably have a T-shaped cross-section,

The " ¹ " e base plate with the lined-up tooth halves and the expansion flange is fastened in a known manner to fastening holes in the binding spine or the lower binding cover of a booklet cover Base plate, the fastening holes are designed as spray clip holes rather "

The expansion bearing in the base plate takes on the task of resilient locking of the swivel axis with the swivel ?; ahnhähnhälft en and the co-operating halves in the open and in the closed position "For this purpose, the expansion bearings - a TTmfarg with surfaces similar to an open-end wrench.

A segment section of the bearing surface of the pivot axis and the expansion bearing is preferably mutually round and the remaining segment section each with a surface for locking in the open and the closed position provided.

For mounting the swivel axis in the expansion bearing of the base plate two opposite surfaces of the swivel axis have a wrench size, which corresponds approximately to the mouth opening of the spread bearing. the The swivel axis is used for assembly with the two aforementioned surfaces inserted between the mouth opening of the spreading bearing and then with a Rotation in the remaining surfaces of the expansion bearing, or the S chwenlcaohs e, locked

The upper segment section of the expansion bearing is opposite with bias the base width of the swivel axis »When open or The closed state of the fully plastic stapling mechanism therefore presses the upper one Segment cut off the spreading bearing the Soh.wenkaoh.se with the area for the open position and with the surface for the closed position in. each . Mutual planes of the lower side of the spread bearing into it.

009846/0001 bad original. ₃ -

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In addition, the pivot axis is also slotted on the longitudinal side, so that the same yes. Cross-section springs can. This suspension Tint he supports the full seat of the surfaces of the pivot axis in the surfaces of the spread bearings »

The line-up tooth halves and the swivel tooth halves are most theoretical Sole point prolonged without an overbite, The mutually cooperate * the tips of the serration tooth halves and semicircular tooth halves meet therefore already around the overbite earlier and then feathers out because they at their roots are pressed further down to the base «This suspension of the aligning halves and the pivoting tooth halves results in the actual Closing point an advantageous preload »

For an actuation of the pivot axis in the open or in the closed position, an actuating lever can be molded onto the end of the pivot axis. ^!

The function of the new fully plastic stapling mechanism during the opening and closing process is that the pivot bearing is designed as a spreading Ia * '. Tung, whereby in the closed position and in the open position, areas on the pivot axis are connected to the same areas in the spreading lra ™? tion can be pressed tightly and thus locked in this position -xnd by twisting, the Sehvenkachne in Zvirschontereioh the open and closed position the over-Eek-Dimension of the surface of the eye steering axis the spreading bearing of the (base plate mif ^ sreint and thus the Drchbeweg mg i ^ r pivot axis "enables the SpreizlaTerting this case, the resilient cross-section ¹¹ TId in the closed position causes a bias of the Aufreihzahnhälften and the pan supports of the pivot axis the locking of the saddle pad surfaces of the pivot axis in the Spreislarerung" tooth halves the force-fit guidance of the stitching tooth tips "

O'rne to leave the scope of the invention, the staple tooth halves can en can also be made in metal and in the injection-molded parts at Spritfmit be injected

The metal handle halves can, however, also only be introduced later will"

In order to be able to use an injection molding tool for heffcmechanik * »n for different stitching distances, it is possible, that an element with a straight line half and with a mark - :; each half is spoken dnn Hnftabstond mf finer Befeatirun ^ soohi "Tie odor but is angeor'ir et directly into the binding,

ώ A - 0098A6 / 0001 BAD ORIGINAL

Figure 1 shows im. enlarged scale in section an execution • ir '-'- sbeisrrf.pl a fully plastic stapling mechanism as a tear-open mechanism with a Expanding lip drilling in the base plate for fastening ± m back a plastic film cover by means of a plastic back rail with expanding rivets when closed *

Figure 2 shows, on an enlarged scale, a cross-section of an exemplary embodiment a fully plastic stapling mechanism a] .s tear-open mechanism with a Expanding lip drilling in the base plate for fastening in the back a plastic film binding with a plastic back rail with expanding rivets in the open state "

In Figures 1 and 2, the base plate is denoted by 1. On the right edge of the base plate 1, the fixed rowing tooth half 2 is injection-molded with the T-shaped cross-section shown in section. The end of the F-shaped row is lengthened by the pre-tensioning dimension "A" compared to the theoretical closing point 3. The left edge of the base plate is designed as a fork-shaped spreading bearing 4 and consists of the lower bearing pan 5 and the upper spre?. ^ - 1-i-npe 6. D ^- * e Ltiger pan 5 has two surfaces 7 and 8, while the expansion lip 6 has a round bearing surface 9. Approximately in the middle of the cross section dpr base plate 1, the same is designed with a expansion lip hole Io. The outer edges of the base plate 1 are provided with grooves 11 and 12 on their underside. A plastic backsheet 13 is pushed in in a known manner between two film layers 14 and 15 and is pressed with the expanding rivet head 16 through the expanding liner hole Io of the base plate 1. Two longitudinal ribs 17 and 18 of the back rail 13 lock the film layer 14 in the longitudinal grooves 11 and 12 of the base plate 1. This achieves perfect fastening of the base plate 1 in the back of the plastic film cover.

The pivot axis 19 is installed in the expansion bearing 4 of the base plate 1. Through the longitudinal sole seat 2o, the pivot axis 19 has. cross-section a spring action "

The dimension of the wrench size "B" of the two surfaces 21 and 22 of the pivot axis 19 corresponds approximately to the dimension "O" of the mouth opening of the expansion bearing 4. By inserting the pivot axis 19 into the expansion bearing 4 in the plane of the key width ^M B "and! Mouth opening ^M C ^M and a subsequent rotation of the pivot axis 19, a simple assembly of the pivot axis 19 in the Sprei r; bearing 4 is possible.

009846/0001 BAD

Claims (1)

The lower segment section of the pivot axis 19 is provided with two bearing surfaces 23 and 24 -and these bearing surfaces 23 and ran. 24 of the pivot axis 19 rests on the bearing surfaces 7 and 8 of the expansion bearing of the base plate 1. The upper S eminently from the pivot axis has a round bearing surface 25 and rests under prestress on the round Lnp · QT surface 9 of the expanding lint 6. At the upper region of the pivot axis 19, the pivot tooth half 26, also with a preferably T-förroi ^ s cross-section, molded "The end of the I-shaped pivot tooth half 26 is" egenüber the theoretical closing point 3 to the Vorspan mn ^ PER- FORMING ^"1 D ¹ * extended. This provides in Figure 1 of the tip of the Aufreihe ahnhälft e 2 and the tip of Sohwenk. ^ Ahnhälfte 26 with the Vorsnannraaß ^(t A ^M plus "D" at the actual closing point 27 force- PATTiFl 'ANSPKÜCHE l) Full ?! astik stapling mechanism for lining up stapling sheets, consisting of a base plate with fixed row teeth and fixed swivel bearing for a rotatable pivot axis with swivel teeth arranged on it, characterized in that the swivel bearing of the base plate as a splay. ° rentn ^ is formed, whereby in the Sohließste 'lun. ^ U ¹ Id in the Offenteilun ^ surfaces on the pivot axis on also surfaces in the Sp r ei ζ Ia / ^ er im *, pressed by their bias, force-fit and thus locked in this position be, as well as by turning the built-in pivot axis in the intermediate area of the open and closed position) 'j the over-corner dimension of the surface of the Sohwenkaohse di «? Sprei ^ lafferun ^ the base plate and thus allows the Drθhbewerjung the pivot axis in the Sprei ^ storage. 2) Vollplaatik-Heftiaechanik for da3 rowing of booklet sheets, consisting of a base plate with fixedly arranged on row teeth and feather arranged pivot bearing for a rotatable pivot axis with άατιαη arranged »pivot teeth according to claim 1 thereby identified ^ eichnefc _t dft» «dKireh .'Johlit ^ ung der Üohwenkaohae the same 1 «(Juereoteitt springs and this spring force locks the t aahmmtkftobmm In the flat the spread bearing of the base plate causes. «£ 3) Tellplaetik-iäWrtMeelieiiHc for lining up τοη booklet sheets, bedding jjs KiB »iHNH · {Jrandplett · with fixed teeth on it and q! • et & nfp **» 1tnmU * S «hirenklegerun * for» in · rotatable Sohwenkaohee 009846 / OOOt swivel flags arranged on it. Claim 1 and 2 characterized in that that only a segment of the bearing surface of the Pivot axis and the Spreizlagerurig mutually each with at least a surface for the locking is carried out and that the remaining Part of the la;: er surface of the pivot axis and the Spreiiila-erunt "with mutual support is circular» 4) Fully plastic stapling mechanism for stringing booklet sheets from a base plate with on it:? est arranged rows, and fixed Öchvfenlclagerung for a rotatable swivel axis with pivot teeth arranged thereon according to claim 1 to 3 dadtiroh characterized, that the cooperating serration tooth halves and Sehwenksahnhälften on the theoretical base puidcfc with a preload dimension (A and D) are extended and. therefore in the closed position of actual closing point under preload of the in 3ich ausfederndim Line-up tooth halves and swivel tooth halves stands » 5) Fully plastic booklet charadk for lining up booklet sheets. consisting of a G-rundpl atte with feat arranged thereon AxifrolhzähTien 'ind fixedly arranged Schwenklagerun ^i- for a- rotatable pivot axis arranged thereon pivoting teeth according to claim 1 to 4 characterized overall indicates that the ÖchweEkzahnhälften and Äufreihr-ahnhHLftem a T-shaped- Cross-section to increase the static, iestx-ability have « 6) ■ Full plastic Heftm.eoh-mik lieftblaitkern consisting arranged for the queuing of a G-rundplatbe with thereto fixed Axifreih ^ ä'mer 'n "" ¹ fixedly arranged SohxrenTrlagerting for drehbnre Sc ^ T ^ mkaohse τητΐ thereto, Pivot teeth according to claims 1 to 5, characterized in that the dimension (B) corresponds to the key width of two overlapping surfaces of the pivot axis © approximately the dimension (G) of the mouth opening of the spreading bearing: the (round plate and 'in the wonfeage the bulk carts with the end el far eimafi (B) of the area left over between the measure (G) of the mouth opening of the chaff, la- * einni · introduced into the same and through & ϊη & rotation der SchwenkqchBe »in d is advanced " 7) Vallpiaattk stapling mechanism for the stringing of hatching leaves bi? »FeeliKnd ' from a base plate with fixedly arranged AufrethaälmeK and feet- angooraAeter. ' Sohwenklaireruiw for a rotatable · swivel axis with d ^ .ran arranged sehwenkzähne according to claim 1 to 6, characterized in that that at least one actuating lever for the opening and closing process is molded onto the pivot axis, β) Fully plastic stapling mechanism for tearing open booklets consisting of. a base plate with thereon fixed A'rfreih ^ ähnen and • fixedly arranged SchwenH η - »ERU nr for a rotatable pivot axis disposed thereon to pivot teeth Anspruoh. 1 to 7, characterized in that the base plate forms an element with at least one fixed row tooth half and at least one expansion bearing and at least two of these elements are fastened at a corresponding tack spacing in engagement with a cooperating pivot axis with at least two pivot tooth units on a base, 9) Fully plastic stapling mechanism for the lining up of Heftblätterr consisting of a base plate with fixed lining up and fixed pivot bearing for a rotatable pivot axis with pivot teeth arranged thereon according to claim 1 to 7, characterized in that the base plate with at least one fixed line half and at least one S ~ * nreizlT augmentation in engagement with a cooperating pivot axis with a pivot ltiiridentens ζ ahnhäl ft e an element forming and at least two of these elements independently of each other in the corresponding staple clearance on a support are attached. 009846/0001