Information
-
Patent Grant
-
6510790
-
Patent Number
6,510,790
-
Date Filed
Friday, February 16, 200123 years ago
-
Date Issued
Tuesday, January 28, 200321 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
- Jones Tullar & Cooper, PC
-
CPC
-
US Classifications
Field of Search
US
- 101 181
- 101 219
- 101 224
- 101 225
- 101 227
- 101 228
- 226 91
- 226 92
- 242 332
- 242 3324
- 242 5327
- 242 5621
-
International Classifications
-
Abstract
A material web to be printed is drawn into a rotary printing press by securing a reinforcement element to a leading end of the material web. The reinforcement element can be enwrapped in the material web or held to the web by suitable catches. An openable and closable loop is formed in the reinforcement element and is used to connect the element to the web draw-in device of the printing press.
Description
FIELD OF THE INVENTION
The present invention relates to a device for drawing in a printing material web into a rotary printing press. One end of the printing material web can be connected to a draw-in element by using at least one reinforcement element.
A device for drawing in a printing material web is known from DE 297 10 607 U1. In this device, a wedge-shaped reinforced element is used for forming a draw-in tip.
U.S. Pat. No. 4,063,505 describes a device for drawing in a web of material by means of two tapes. A start of the web of material is maintained in a frictionally connected manner between the two tapes.
GB 2 256 854 A discloses a device for drawing in a printing material web by means of a reinforcement element. Here, the reinforcement element and the printing material web are connected by means of staples.
Later published DE 198 16 510 A1 discloses a draw-in tip, which is wrapped by the corners of the start of a web.
SUMMARY OF THE INVENTION
The object of the present invention is directed to creating devices and a method for the drawing in a printing material web.
In accordance with the present invention, this object is attained by a device and method in which one end of the printing material web which is to be drawn into a rotary printing press can be connected to a draw-in element by using at least one reinforcement element. This reinforcement element has catches on its side facing the web, or has a closable loop. The end of the printing material web and the reinforcing element are connected by the catches or by the loop.
A simply produced draw-in tip with a small number of adhesives is achieved, in an advantageous manner, by the device in accordance with the present invention. Only a small portion of the tractive forces is transmitted by the adhesives. An interlocking connection occurs between the reinforcement element and the free end of the material to be imprinted.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the present invention are represented in the drawings and will be described in greater detail in what follows.
Shown are in:
FIG. 1
, a schematic representation of a device for drawing in a printing material web in accordance with a first preferred embodiment of the present invention,
FIG. 2
, an enlarged section in accordance with
FIG. 1
in the area of the draw-in means,
FIG. 3
, the schematic representation of a device for drawing in a printing material web in accordance with a second preferred embodiment,
FIG. 4
, an enlarged portion in accordance with
FIG. 3
in the area of the draw-in means,
FIG. 5
, a schematic representation of a device for drawing in a printing material web in accordance with a third preferred embodiment, and in
FIG. 6
, a schematic section in accordance with claim
5
in the area of an engagement element.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The start of a printing material web
01
, for example a paper web, is provided with a draw-in tip
02
for drawing this printing material web
01
along a prepared guide path into a web-fed rotary printing press, for example. This draw-in tip
02
has a reinforcement element
03
. In the present preferred embodiment, this reinforcement element
03
is embodied as a generally wedge-shaped plate having a thickness d
03
of, for example 1 mm and having a length
103
along its linear edge
17
of, for example 1.5 m, all as seen in
FIGS. 1 and 2
. This reinforcement element
03
can be deformed, for example vertically reversible in respect to the conveying plane, and is made using a rubber-elastic material. The reinforcement element
03
preferably is made, for example, of a foil-like plastic material, such as, for example PA, PE, PVC, PTFE.
T-shaped or L-shaped reinforcement elements can also be used in place of a generally wedge-shaped reinforcement element
03
. All of the contemplated shapes of the reinforcement element
03
have in common that a first, or attachment end
04
of a first width bO
4
, for example of 150 mm, is greater in comparison with a second or coupling end
06
, having a second width bO
6
of, for example 50 mm, of the reinforcement element
03
.
The second or coupling end
06
of the reinforcement element
03
is provided with a coupling device for the selective fastening of the reinforcement element
03
to a draw-in element
07
of, for example, a web-fed rotary printing press.
This coupling device can be designed, for example, as a coupling loop
08
, or as a coupling eye, which is able to be fastened to a catch
09
of the draw-in element
07
.
In the present first preferred embodiment, the coupling loop
08
is formed by turning over or doubling back the second, free coupling end
06
of the reinforcement element
03
. A turned-over or doubled back portion
11
of the second, free coupling end
06
of the reinforcement element
03
is again connected with the reinforcement element
03
. This connection can be made by means of a hook-and-eye strip
12
, as depicted in FIG.
2
. In this case, in its stretched state the second, free coupling end
06
has on one side both of the partial elements; i.e.the hook strip
13
and eye strip
14
of the hook-and-eye strip
12
, which partial elements
13
and
14
are arranged at a distance from each other. After turning the end
06
over, thus doubling it back on itself, the hook strip
13
is connected with the eye strip
14
. In this way, a loop
08
is formed, which loop
08
can then be selectively opened and closed.
The opening and closing of the loop
08
can take place multiple times without destroying the material of the reinforcement element
03
in the process.
A magnetically acting connection, such as two magnets acting together, or one magnet acting together with a metal piece, or a snap fastener connection can be provided in place of a hook-and-eye strip
12
for forming such a loop
08
, which magnetically acting connection or snap fastener connection is selectively opened and closed.
To form the draw-in tip
02
, the reinforcement element
03
, together with a front edge
18
of the free end
16
of the printing material web
01
extending transversely in respect to the conveying direction, forms an opening angle a in the range between 45° to 85°. A corner
21
of the printing material web
01
, defined by the lateral edge
19
facing away from the front edge
18
and remote from the draw-in element
07
, is temporarily held manually on the reinforcement element
03
or is connected with the reinforcement element
03
by means of an adhesive strip or an insertable tongue.
Starting at this remote corner
21
, the reinforcement element
03
is turned over several times, so that the printing material web
01
is wrapped at least once completely around the reinforcement element
03
. The free end
16
of the printing material web
01
is preferably wrapped around the reinforcement element
03
in several layers. In the course of this enwrapment, the reinforcement element
03
travels or moves laterally across the web
01
from the remote lateral edge
19
of the printing material web
01
, which faces away from the draw-in element
07
, to the proximal lateral edge
22
of the printing material web
01
, which is close to the draw-in element
07
.
The reinforcement element
03
turned-over or enwrapped in web
01
in this way is joined together with web
01
, for example by means of an adhesive strip
23
, so that the layers
24
of the printing material web
01
which surround reinforcement element
03
are connected with the free end
16
of the printing material web
01
.
A proximal corner
26
of the free end
16
of the printing material web
01
, which faces or is proximal to the draw-in element
07
, can be folded in, to now be facing away from the draw-in element
07
, and can also be secured on the free end
16
of the material web
01
by means of the adhesive strip
23
, all as seen in FIG.
1
.
The draw-in tip
02
formed in this way is now connected with the draw-in element
07
.
This draw-in element
07
can be embodied, for example, as a chain
28
as depicted in
FIG. 1
, and has catch
09
, embodied as a suspension clip
29
, which extends out from chain
28
in the axial direction, i.e. perpendicularly in relation to the conveying direction T. An opening
31
or a hook for fastening the draw-in tip
02
is provided in this suspension clip
29
.
The draw-in element
07
can also be embodied as a tape
32
, as shown in FIG.
3
and in
FIG. 4
, for example, on which loops
33
, or in which slits are arranged.
Now the second, free or coupling end
06
of the draw-in tip
02
can be threaded through the opening
31
or the loop
33
of the draw-in means
28
,
32
, respectfully. This second, free or coupling end
06
, once passed through the opening
31
,
33
of the draw-in means
28
,
32
, is now turned over in the direction toward the draw-in tip
02
and is joined or doubled back on itself by means of the hook-and-eye strip
12
to form the coupling loop
08
.
In a further preferred embodiment as seen in FIG.
5
and in
FIG. 6
, catches
36
, which penetrate through the printing material web
01
, are attached to a first side of a reinforcement element
34
facing the printing material web
01
. The catches
36
are of a length
136
which is of at least the maximal thickness d
01
of a printing material web
01
to be drawn in, a thickness d
36
, of for example 0.1 mm, extending in the conveying direction T, and a width b
36
, for example 10 mm, extending perpendicularly in respect to the conveying direction, as seen in
FIGS. 5 and 6
.
A counter element, acting as a female element
37
, is associated with this reinforcement element
34
, which acts as a male element
34
and which is provided with the previously discussed catches
36
. This female element
37
has openings
38
matched to the catches
36
. To form a draw-in tip
39
, the free end
16
of the printing material web
01
, for example, is placed on the female element
37
, and the printing material web
01
is penetrated by means of the catches
36
of the male element
34
. Now the female element
37
and the male element
34
are releasably connected with each other, for example magnetically, or by means of snap closures or by means of a hook-and-eye strip.
While preferred embodiments of a device for inserting a strip of fabric to be printed or for drawing in the strip of fabric or the printing material web into a rotary printing press, in accordance with the present invention have been set forth fully and completely hereinabove, it will apparent to one of skill in the art that a number of changes in, for example the specific rotary printing press, the drive for the draw-in device and the like could be made without departing from the true spirit and scope of the present invention which is accordingly to be limited only by the following claims.
Claims
- 1. A device for drawing a printing material web into a rotary printing press comprising:a reinforcement element adapted to be secured to an end of the printing material web, said reinforcement element being engageable with a draw-in element of the rotary printing press; a loop formed in an end of said reinforcement element, said loop being engageable with the draw-in element; and means to selectively open and close said loop.
- 2. The device of claim 1 wherein said means to selectively open and close said loop includes a hook and eye tape.
- 3. A draw-in tip adapted to connect a printing material web to a draw-in element of a rotary printing press, said draw-in tip comprising:a reinforcement element; an attachment end of said reinforcement element, said attachment end being adapted to be enwrapped with the printing material web adjacent a front edge of the printing material web, said attachment end being adapted to form an interlocking connection between said reinforcement element and the printing material web; and a coupling end of said reinforcement element, said coupling end having a coupling device selectively fastenable to the draw-in element, said coupling device being a coupling loop, said coupling loop being selectively opened and closed.
- 4. The draw-in tip of claim 3 wherein said coupling loop is defined by a double back portion of said coupling end.
- 5. The draw-in tip of claim 4 wherein said double back portion of said coupling end further includes means to selectively open and close said loop.
- 6. The draw-in tip of claim 3 wherein said attachment end is generally wedge-shaped.
Priority Claims (1)
Number |
Date |
Country |
Kind |
198 37 361 |
Aug 1998 |
DE |
|
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/DE99/02527 |
|
WO |
00 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO00/10808 |
3/2/2000 |
WO |
A |
US Referenced Citations (6)
Foreign Referenced Citations (6)
Number |
Date |
Country |
3309121 |
Aug 1984 |
DE |
29710607 |
Feb 1998 |
DE |
19816510 |
Jul 1999 |
DE |
0533042 |
Mar 1993 |
EP |
2256854 |
Dec 1992 |
GB |
2315062 |
Jan 1998 |
GB |