US3720566A

US3720566A - Machine for manufacturing adhesive binder covers

Info

Publication number: US3720566A
Application number: US00048608A
Authority: US
Inventors: E Heimann
Original assignee: Individual
Current assignee: Individual
Priority date: 1969-06-28
Filing date: 1970-06-08
Publication date: 1973-03-13
Anticipated expiration: 1990-03-13
Also published as: DE1932967C3; NL7009471A; CH507105A; FR2031108A5; DE1932967B2; DE1932967A1; GB1273167A

Abstract

A machine for manufacturing adhesive binder covers is provided with a pair of off-set magazine rolls of two strips of non-adhesive material. The rolls are separated so the strips are supplied with a gap between them. A roll of adhesive strip is positioned in alignment with the gap. A pulling deflector roller having a plurality of separate contact members, preferably point contact members, is provided for pulling the adhesive strip from its roll. At least one pair of pressure rollers is provided downstream from the pulling deflector roller. A cutting device is arranged downstream from the pressure rollers.

Description

E. HEIMANN March 13, 19733 MACl IINE FOR MANUFACTURING "ADHESIVE BINDER COVERS 3 Sheets-Sheet Filed June 8, 1970 7 Tom- E. HEIMANN March 13, 1973 MACHINE FOR MANUFACTURING ADHESIVE BINDER COVERS Filed June 8. 1970 3 Sheets-Sheet March 13, 1973 E. HEMANN 3,720,566

MACHINE FOR MANUFACTURING ADHESIVE BINDER COVERS Filed June 8, 1970 3 Sheets-Sheet 5 United States Patent Office 3,720,566 MACHINE FOR MANUFACTURING ADHESIVE BINDER COVERS Egon Heimann, Falkenberg 61, Wuppertal- Elberfeld, Germany Filed June 8, 1970, Ser. No. 48,608 Claims priority, application Germany, June 28, 1969, P 19 32 967.0 Int. Cl. 832i) 31/08, 31/20 US. Cl. 156-544 16 Claims ABSTRACT OF THE DISCLOSURE BACKGROUND OF THE INVENTION The known method for producing adhesive binder covers is to make them by hand. The covers previously cut to size are provided with a back strip with a self-adhesive layer on the inside surface. This type of production is cumbersome and makes the adhesive covers expensive.

The latter are, however, becoming of increasing importance as they are used firstly as files and secondly as covers, for example for cheques or the like.

The aim of the invention is to provide a machine of simple design to manufacture adhesive binder covers at an advantageous price, by means of which large numbers of adhesive binder covers can be produced in a short time.

This aim is achieved in accordance with the invention by having two bearer shafts on the inlet of a pair of feed rollers, each of which shafts takes a magazine roll, and at least one further bearer shaft likewise lying in front of the pair of pressure rollers in the region of the middle slit of the said bearer shafts, which shaft takes a roll of adhesive strip, and a transverse cutting device lying beyond the pair of feed rollers for the strips from the magazine rollers stuck together at a separation by the adhesive strip.

In accordance with the invention it is advantageous to provide a further bearing shaft above the run in plane of the magazine roller strip likewise in the region of the middle slit of the two magazine roll bearer shafts, which said further shaft takes a roll of protective strip.

Preferably in accordance with the invention the protective strip bearer shaft can be displaced transverse to the direction of run through.

An essential feature of the invention is that several adhesive strip bearer shafts are combined together preferably in a star-shaped arrangement to form a single magazine.

Here in accordance with the invention it is advantageous if arranged next to the adhesive strip bearer shaft on the inlet side in front of the pair of feed rollers there is a deflecting roller lying in the open angle of deflection of the adhesive strip and only coming into contact with the adhesive strip over narrow surfaces, preferably point contacts.

Then in accordance with the invention it is of advantage that the deflecting roller should be in the form of a toothed roller.

An advantageous design of the machine is achieved in 3,720,566 Patented Mar. 13, 1973 accordance with the invention by arranging beneath the transverse cutting device a bearing surface for catching the descending adhesive binder covers.

In addition, in accordance with the invention it is advantageous if a guide channel is arranged between the adhesive strip roll and the deflecting roller to support the adhesive strip from below.

Furthermore an advantageous design of the machine is achieved in accordance with the invention by providing between the pair of pressure rollers and the transverse cutting device a further pair of pressure rollers driven in synchronism with the deflecting roller, associated with which is a pressure roller pressing from above on the protective strip.

Finally in accordance with the invention it is also advantageous for the protective strip bearer shaft to be followed by a device for completely cutting or perforating the protective strip over its length and/or folding it, which device lies however on the inlet in front of the first pair of pressure rollers.

In this way a machine of simple construction is provided by means of which adhesive binder covers can be manufactured at an extremely advantageous price.

There is the further advantage that the adhesive binder covers can be produced in a continuous strip which is subsequently cut with the transverse cutting device to produce covers of the desired size. The cover rolls preferably lie on the inlet side of a pair of pressure rollers on two bearer shafts lying one beside the other. These shafts are then easily accessible to operating personnel so that for example it is simple to slide on a new magazine roll. The cover strips and adhesive strip run together through a pair of pressure rollers where the adhesive strip is stuck to the cover strip. The adhesive strip is drawn off from a roll, the bearer shaft for which preferably lies in the central slit of the bearer shafts for the magazine rolls, the roll likewise being arranged in front of the pair of pressure rollers. Arranged beyond this pair of pressure rollers is a transverse cutting device which cuts the cover strips leaving the pressure roller stuck together at a sep aration by the adhesive strip into the desired lengths. If the adhesive strip is to be covered in the middle or if the adhesive binder cover is to be used as a cover, for example for cheques, then it is advantageous to provide an inside protective sheet in the binder. For this purpose all that is required is a further bearer shaft for a roll of protective strip lying above the run in plane of the cover strips and likewise arranged in the region of the abovementioned central gap. This bearer shaft can be displaced transverse to the feed direction to adapt to the region of the adhesive strip left free. It has been found advantageous to draw the adhesive strip from rolls of small diameter, the bearer shafts for which are arranged to form a star-shaped magazine. This magazine can be rotated in steps and can easily be loaded. The adhesive strip drawn olf from the roll of adhesive strip is preferably deflected by a deflector roller lying in front of the pair of pressure rollers in the open angle of the adhesive strip. Since this deflector roller is in the form of a toothed roller, it only makes point contacts with the adhesive strip. When the cover strips have been stuck by the adhesive strip, the resultant strip is cut in the transverse cutting device, the binder covers then falling onto a bearing surface underneath the transverse cutting device. A further pair of pressure rollers arranged between the inlet side pair of pressure rollers and the transverse cutting device can be set for example to a greater pressure so as to stick the strips even more firmly. By means of a cutting and/or folding device arranged in front of the inlet side pair of pressure rollers and the roll of protective strip the latter can be completely out or perforated or folded to the desired length depending on the use to which the binder covers are to be put.

Other advantages and details can be learned from the following description of an example of an embodiment which is depicted in the drawings. These show:

FIG. 1 a diagrammatic side elevation of the machine in accordance with the invention,

FIG. 2 a plan view of the machine,

FIG. 3 a section along the line A-B in FIG. 2 but on a large scale,

FIG. 4 a perspective view of a binder cover with an inserted stack of sheets consisting of separate sheets with an associated protective sheet,

FIG. 5 a cross-section through the back of the cover in FIG. 4,

FIG. 6 a similar section to that in FIG. 5 but with the separate sheets partially removed,

FIG. 7 a section in the region of the back of a cover serving as a letter file with a protective strip cut into sections.

The machine has a body 1 followed by a transverse cutting device 2 arranged in a casing 1'.

A member 3 of the framework of the machine carries on the inlet side of the bearings 4 and 5 the bearer shafts 6 and 7 which each take a

magazine roll

8 and 9 respectively. The bearings 4 and 5 open upwards so that, the bearer shafts 6 and 7 can be inserted from above.

The off-

set magazine rolls

8 and 9 arranged at a separation from one another forming a central gap M and followed by a pair of deflector rollers 10 and a pair of pressure rollers 11. In the region of the central gap M is arranged a starp-shaped formation of bearer shafts 14 for rolls of adhesive strip 15 combined together to form a single magazine 13 mounted on a strut 12 of the machine body 1 feeding into the pair of pressure rollers. This magazine can be rotated in steps about the axle 16 on the strut 12.

Associated with the bearer shaft 14 for the roll of adhesive strip there is a deflector roller 17 in the form of a toothed roller arranged on the inlet side beneath the pair of pressure rollers 11.

This deflector roller 17 is arranged in the open angle of deflection of the adhesive strip 15 and only makes point contacts with the adhesive strip 15. The adhesive strip 15 drawn ofl from the roll of adhesive strip 15 passes through a guide channel 18 supporting it from below which extends between the roll of adhesive strip 15 and the deflector roller 17. Before the adhesive strip 15 enters the pair of pressure rollers 11 it is guided by a guide 19. Above the run in plane of the cover strips 8' and 9' arranged likewise in the region of the central gap M between the

cover rolls

8 and 9 and mounted in bearings 21 there is a bearer shaft for taking a roll of protective strip 22. To adapt to the adhesive strip 15' the bearer shaft 20 for the protective strip can be displaced transverse to the feed direction x in the direction of the double arrow y.

The protective strip 22' can be completely cut or perforated lengthwise by means of a cutting and/or folding device 23 arranged after the bearer shaft 20 for the roll of protective strip but before the pair of pressure rollers 11.

This device 23 is on a double lever 25 mounted to swing about the axis 24, the shorter arm 25' of which has a pressure roller 26 pressing from above on the protective strip 22'. This pressure roller 26 precedes a further pair of pressure rollers 27 which lies between the first-mentioned pair of pressure rollers 11 and the transverse cutting device 2. This pair of pressure rollers 27 is driven by a motor 28 through a belt which in turn by a belt is driven in synchronism with the deflector roller 17. Since the reflector roller 17 is in the form of a toothed roller the adhesive strip 15 is drawn off well from the roll of adhesive strip 15.

On the outlet side of the pair of pressure rollers 27 there is a feed guide 29 running upwards at an inclination to the transverse cutting device 2. Below this transverse cutting device 2 the case 1' forms a bearing surface 30 for the falling binder covers 31.

Binder covers 31 are manufactured with this machine in the following way: The ends of the cover rolls are fed over the pair of deflector rollers 20 into the pair of pressure rollers 11 together with the end of the adhesive strip, the direction of which is altered by the deflector roller 17 and the guide 19.

After running through this pair of pressure rollers 11, the cover strips 8' and 9' stuck together at a separation by the adhesive strip 15' enter the following pair of pressure rollers, subsequently being cut to the desired length by the cutting device 2. The resultant sections 8-" and 9" of the cover strips 8 and 9' then form the covers of the binder whilst the section of adhesive strip 15" forms its back.

If the binder 31 is to be provided with an inside protective sheet for example, see in particular FIGS. 4 to 6, in addition to the process described above, a protective strip 22 is drawn off from the roll 22 and runs through the pairs of

pressure rollers

11, 27 together with the other strips 8', 9' and 15. As it can be displaced sidewards the bearer shaft 20 for the roll of protective strip can be adjusted in such a way that the protective strip 22' only covers a narrow strip of the adhesive strip 15'. After cutting in the transverse cutting device 2 the section of protective strip 22" forms the inside protective sheet. The latter can have fold lines 32, to produce which the protective strip 22' runs through the cutting and/or folding device 23 arranged in front of the pair of pressure rollers 11.

On the inside the inner protective sheet formed by the section of protective strip 22 is preferably provided over an area with a layer 33 of adhesive material. When some of the individual sheets 34 held by the binder 31 have been removed, the inside protective sheet lies with this layer of adhesive material against the self-adhesive layer 35 of the section of adhesive 15" forming the back strip, see FIG. 6. This prevents the section of self-adhesive strip left free by the removal of the sheets 34 from sticking to the respective uppermost individual sheet 34.

If the binder cover is to be used as a file for letters, the protective strip 22' is cut in the cutting and/or folding device 23 over its length, for example into separate longitudinal strips 36, which covers the free section of adhesive strip between the cover strips 8' and 9'. One or more of these longitudinal strips 36 can then be removed from the complete binder 31 as required so that the respective stack of sheets can be stuck with its rear edge to the now freed self-adhesive layer of the back strip formed by the section of adhesive strip 15". The longitudinal strips 36 are also provided on the side towards the back strip with a layer of adhesive so that the strips can easily be pulled off.

What I claim is:

1. A machine for manufacturing adhesive binder covers comprising, in combination:

(a) a pair of laterally off-set magazine rolls separated from one another for supplying respectively a first strip of non-adhesive material and a second strip of non-adhesive material with a gap between said strips;

(b) at least one further roll positioned in substantial alignment with the gap between said strips, said further roll supplying an adhesive strip;

(c) a pulling deflector roller having a plurality of separated contact members in the form of teeth which contact said adhesive strip for pulling said adhesive strip off said further roll;

(d) a pair of pressure rollers arranged next to one another and positioned downstream from said magazine rolls and from said pulling deflector roller for receiving and pressing together each of said strips of non-adhesive material to spaced apart portions of said adhesive strip, to form a composite strip; and

(e) cutting means positioned downstream from said pair of pressure rollers for transversely cutting the composite strip into covers.

2. A machine as claimed in claim 1 wherein said pulling deflector roller is positioned between said further roll and said pair of pressure rollers for feeding said adhesive strip via an open angle path.

3. A machine as claimed in claim 1 wherein said composite strip exits said pair of pressure rollers in a given plane and further comprising:

(f) an additional roll of strip material positioned above said given plane and in at least partial alignment with the gap between said first strip and said second strip for providing a protective strip; and

(g) means positioned downstream from said additional roll of strip material for transporting and pressing together said protective strip in overlying relationship with at least part of said adhesive strip along its entire length and at least part of one strip of said first strip of non-adhesive material and said second strip of non-adhesive material.

4. A machine as claimed in claim 2 wherein said means for transporting and pressing together comprise a further pair of pressure rollers positioned between the first said pair of pressure rollers and said cutting means and an additional pressure roller positioned between said pairs of pressure rollers and above said given plane for pressing from above on said protective strip so that said protective strip adheres to said adhesive strip; and further comprising means for driving said further pair of pressure rollers in synchronism with said pulling deflector roller.

5. A machine as defined in claim 3 further comprising strip cutting means positioned above said given plane and downstream from said additional roll for cutting said protective strip along its length.

6. A machine as defined in claim 3 further comprising strip perforating means positioned above said given plane and downstream from said additional roll for perforating said protective strip along its length.

7. A machine as claimed in claim 3 wherein said additional roll of strip material positioned above said given plane is of suflicient width so that the strip of additional material overlies at least a part of said adhesive strip and extends to a free longitudinal edge of at least one strip of said strips of non-adhesive material.

8. A machine as claimed in claim 1 wherein said at least one further roll is a plurality of rolls for supplying adhesive strips.

9. A machine as claimed in claim 8 wherein said plurality of rolls for supplying adhesive strips are combined in a star formation to form a magazine.

'10. A machine as claimed in claim 1 further comprising a bearing surface positioned below and at a distance from said cutting means for collecting a plurality of the covers in a stack.

11. A machine as claimed in claim 1 further comprising a guide channel positioned between said further roll and said pulling deflector roller for supporting said adhesive strip from beneath.

12. A machine for manufacturing adhesive binder covers comprising, in combination:

(c) a pulling deflector roller having a plurality of separated contact members which contact said adhesive strip for pulling said adhesive strip off said further roll;

(d) a pair of pressure rollers arranged next to one another and positioned downstream from said magazine rolls and from said pulling deflector roller for receiving and pressing together each of said strips of non-adhesive material to spaced apart portions of said adhesive strip, to form a composite strip, and wherein said composite strip exits said pair of pressure rollers in a given plane;

(e) an additional roll of strip material positioned above said given plane and in at least partial alignment with the gap between said first strip and said second strip for providing a protective strip;

(f) means for displacing said additional roll transverse to the feed direction of said composite strip;

(g) means positioned downstream from said additional roll of strip material for transporting and pressing together said protective strip in overlying relationship with at least part of said adhesive strip along its entire length and at least part of one strip of said first strip of non-adhesive material and said second strip of non-adhesive material; and

(h) cutting means positioned downstream from said pair of pressure rollers, said additional roll of strip material and said means for transporting and pressing together for cutting the composite strip with said protective strip into covers.

13. A machine for manufacturing adhesive binder covers comprising, in combination:

(a) a pair of laterally ofl-set magazine rolls separated from one another for supplying respectively a first strip of non-adhesive material and a second strip of non-adhesive material with a gap between said strips;

(d) a pair of pressure rollers arranged next to one another and positioned downstream from said magazine rolls and from said pulling deflector roller for receiving and pressing together each of said strips of non-adhesive material to spaced apart portions of said adhesive strip, to form a composite strip, Wherein said composite strip exits said pair of pressure rollers in a given plane and said pulling deflector roller is positioned between said further roll and said pair of pressure rollers for feeding said adhesive strip via an open angle path;

(f) means positioned downstream from said additional roll of strip material for transporting and pressing together said protective strip in overlying relationship with at least part of said adhesive strip along its entire length and at least part of one strip of said first strip of non-adhesive material and said second strip of non-adhesive material;

(g) strip folding means positioned above said given plane and downstream from said additional roll for folding said protective strip along its length; and

14. A machine for manufacturing adhesive binder covers comprising, in combination:

(a) a pair of ofl-set magazine rolls, separated from one another for supplying respectively a first strip of non-adhesive material and a second strip of nonadhesive material with a gap between said strips;

(b) at least one further roll positioned in substantial alignment with the gap between said strips for supplying an adhesive strip;

((1) a first pair of pressure rollers arranged next to one another and positioned downstream from said magazine rolls and said pulling deflector roller for receiving and pressing together each of said strips of non-adhesive material to spaced apart portions of said adhesive strip to form a composite strip which exits said first pair of pressure rollers in a given plane;

(e) an additional roll of strip material positioned above said given plane and in at least partial alignment with the gap between said first strip and second strip for supplying a protective strip which overlays at least part of said adhesive strip and at least part of one strip of said first strip of non-adhesive material and said second strip of non-adhesive material;

(f) a second pair of pressure rollers positioned downstream from said first pair of pressure rollers and from said additional roll of strip material for transporting and pressing together said protective strip and the composite strip;

(g) means for driving said further pair of pressure rollers in synchronism with said pulling deflector roller;

(h) an additional pressure roller positioned between said pairs of pressure rollers and above said protective strip so that said protective strip adheres to said adhesive strip; and

(i) cutting means positioned downstream from said second pair of pressure rollers for transversely cutting the composite strip with the overlying protective strip into covers.

15. A machine as claimed in claim 14 wherein said additional roll of strip material positioned above said given plane is of sufficient width so that the strip of additional material overlies at least a part of said adhesive strip and extends to a free longitudinal edge of at least one strip of said strips of non-adhesive material.

16. A machine as defined in claim 14 further comprising strip folding means positioned above said given plane and dowstream from said additional roll for folding said a protective strip along its length.

References Cited BENJAMIN A. BORCHELT, Primary Examiner J. M. HANLEY, Assistant Examiner US. Cl. X.R.