DE2037132A1 - Duplicating machine - Google Patents

Description

The invention relates to a duplicating machine, in particular a stencil printer with two printing cylinders.

A number of duplicating machines are known which serve to produce a relatively large number of copies at a relatively low cost, for example Stencil printer with one or two printing cylinders. The so-called single drum drum has a hollow paint drum, the cylindrical one Surface is perforated and is provided with a paint pad in order to apply paint through a stencil on the drum To print on paper. The so-called two drums, on the other hand, have two pressure cylinders that are arranged parallel to one another and around which runs a printing blanket made of silk. The surface of the cylinder ink is fed to it through the blanket and the To print the stencil on the fed paper.

In the case of two-drum players, a paste-like color can be used that does not run out and makes good copies. They can be operated by office staff following simple instructions. Fully automatic stencil printers, which place the least possible demands on the operating personnel, are becoming more and more complicated in mechanical terms and at the same time more expensive, so that their costs are comparable to those for OEEset printers. However, if it is possible, u inori stencils

109821/1220

BATH ORIGINAL

To produce printer with two impression cylinders with a simplified construction and a relatively low cost that is easy

. "..... -. ' t to is operated and makes good copies with little complexity and low maintenance, would for such Machine is in great demand.

One of the difficulties with duplicating machines is to achieve a reliable paper feed in which the sheets of paper from the stack are ready to be fed to the Printing mechanism can be separated sequentially. In a known feeder for the automatic paper feed are Corner separators are provided which engage to separate the top sheet on the stack of paper. Such Corner dividers, however, do not correspond to different weights of paper or machine speeds adjustable. In other cases it is necessary to replace the corner dividers by others with different Increase intervention to enable proper paper feed. This entails an undesirable amount of work.

This difficulty is avoided in a preferred embodiment of the invention in that an improved Paper feed made possible by a special corner separator is, in the case of a simple manual actuation, for example by adjusting a setting knob., the Automatic corner dividers for different types of paper and working conditions can be adjusted. According to this feature of the invention, in a printing machine Feed table for the paper stack provided with adjustable right and left side guides, which correspond to each other the width of the paper stack are adjustable. Left and right corner dividers are independent of the. "Side guides arranged, but with it and relative to the left or right. Slidable side guides. The corner dividers are depending on the setting of the side guides

ί'1-98 2 1/12 20

bar. As soon as the left and right lateral guides adjust is, a further provided actuation device is used to adjust the left and right corner adjusters relative to, but independently of, the side guides to to achieve an independent adjustment of the intervention, the through the corner dividers in each set position the side guides. Therefore, a pile of paper be placed on the feed table and through the side guides be limited laterally. Furthermore, by a simple manual actuation of the actuating device, the desired engagement of the separating device for the specially pre- ^ lying conditions, whereby a reliable "

Single sheet feed at all operating speeds the machine is guaranteed.

According to a further feature of the invention, a different working speed between 60 and 150 copies per minute can be set, whereby a suitable color feed is guaranteed for all working speeds and copying properties. The ink feed changes depending on the copying speed, the type of paper and the amount of color coverage of the duplicated copy. Advantageously, the machine includes an automatic color distribution, which considerably simpler than that for comparable stencil printers λ with two pressure cylinders, which operates reliably and can easily be employed by the surgeon to achieve the desired ink supply. According to this feature of the invention _r e, the machine includes a movable color frame, on which a closed ink container is provided, which can be discarded after use. A switching mechanism is. connected to the frame in order to cause a stepped movement of the paint container against its cover, which is designed as a piston, in order to supply paint in suitable quantities. An actuating mechanism with a walking gear is connected to the switching mechanism and works in dependence on a predetermined and previously set number of revolutions

109821/1220

the main shaft of the machine to make a switching stroke of the switching mechanism effect for the delivery of paint. The surgeon can make a presetting by means of a simple manual setting of the automatic ink feed mechanism so that more or less color corresponds to the printing mechanism can be supplied to the different printing requirements. Optionally, the automatic ink supply can be switched off and can be replaced by manual lever actuation.

According to a further feature of the invention, the machine enables all required operating features, verification and Control functions, although it has a very simplified mechanical structure in which parts and functions are combined to reduce the total number of parts and allow simple construction. According to this characteristic of the According to the invention, the machine has the usual printing mechanism, a feed table and a stacking device for the printed paper. A common drive is provided for these mechanisms, which has a main drive shaft with a number of cams and Has pick-up rollers to time the actuation of the paper feeder, paper orientation and printing mechanism.

According to a further feature of the invention is the machine designed to be driven either by hand or by motor can be. In contrast to well-known stencil printers, this machine can be used at the workplace with the help of a motor tool kit can be changed over from manual drive to motor drive. According to this feature of the invention is a hand operated crankshaft provided for the drive shaft of the drive, as well as a device to couple the crankshaft to the drive shaft. Furthermore, a motor drive is provided, which is a single

Contains support device which is releasably attached to the machine frame. This support device is used to arrange a Electric motor with a gearbox, a clutch and a connecting device, to connect the motor to the drive shaft when the support device is arranged on the machine frame net is. The arrangement of the support device with the motor, the associated connecting device, the control device and

109821/1220

- 5th

of the wiring, are removable from the machine as a unit, so that any manually operated machine can be easily removed this unit can be switched to motor operation. This single support device is expediently one of the outer covers, as part of the panel field, so that the wiring and controls for the motor are in a suitable location.

The invention will be explained in more detail using the exemplary embodiments shown in the drawing. Show it:

Fig. 1 is a front view of a stencil printer according to the invention with some parts broken away; ™

2 shows a schematic longitudinal section through the stencil printer in Fig.l from which the operation of the paper feed and the control mechanism at the beginning of the paper feed can be seen are;

3 shows a view corresponding to FIG. 2, but for one later time of paper feed;

Figure 4 is a sectional view taken along line 4-4 in Figure 1;

Fig. 5 is a side view from the left in Fig. 1, corresponding to arrow 5, with the left cover removed and the front , m and rear covers pivoted into the open position and showing the mechanism on the left side plate of the machine; ,

6 shows an enlarged side view corresponding to FIG. 5, but with certain parts being omitted;

7 is a plan view on a reduced scale; with portions broken away to reveal the feed table and associated mechanisms;

08 21. / 1 2 2 0

Figure 8 is a plan view of the feed table and associated mechanism with parts broken away;

9 is an enlarged detail view of a portion of the placement mechanism for the corner dividers which is provided on the underside of the feed table;

Fig. Io is a partial view of part of the feed table and the associated separation mechanism;

11 is a sectional view taken along line 11-11 in FIG Fig. 7;

™ Figure 12 is a side view of the right side of the machine in the direction of arrow 12 in Fig. 1 with the right cover removed while the front and rear covers move are in the open position, and from which the mechanism can be seen is the one on the outside of the right side panel the machine is arranged;

Figure 13 is a partial view of a portion of Figure 12 with the control mechanism in the operative position;

Fig. 14 is a view corresponding to Fig. 13, but with the control mechanism disabled;

15 is an enlarged sectional view taken along FIG Line 15-15 in Figure 12;

16 is an enlarged partial view of the mechanism in FIG Fig. 12;

17 is a sectional view taken along line 17-17 in FIG Fig. 1, with parts broken away to the mechanism show which is located on the inside of the right side panel of the machine; ·

18 is a sectional view taken along line 18-18 in FIG 17, in the direction of the arrows shown;

821/1220

- * 7 -

Fig. 19 is a fragmentary view showing details of the feeding mechanism in Fig. 1;

FIG. 2o shows a partial section along the line 2o-2o in FIG. 19; FIG. and

Fig. 21 is a control diagram of the machine.

In the * Figures 1 to 6, a stencil printer 3o is shown, the a housing 32 with a hinged front cover and a feed table 36 for the paper feed, a removable left cover 38, a left side plate 4o, which carries a sub-mechanism, and a removable similar

right side plate 42 which surrounds the sub-mechanism located on the right side plate 44 of the machine. An upper removable cover 45 is bolted to the left and right side panels. As can best be seen from Fig. 5 and indicated by the dashed lines and the directional arrows, the front cover and the feed table 34 and the rear cover 36 can be pivoted into their closed position, whereby they cooperate with the remaining parts of the housing 32, including the side covers 38, 42 and the front top cover 45 to enclose the packing mechanism by a dustproof housing. The front cover and the feed table 34 are articulated on opposite pivot pins 46a, 46b (FIG. 7), M which in turn are movably arranged on the frame of the machine so that the feed table 34 can be pivoted into its horizontal working position. The rear cover 36 is hinged directly to the machine frame on lateral pivot pins 48 and can be pivoted into a horizontal position, whereby it protrudes to the rear of the machine 3o, in which position it serves as a stacking device. The feeder of the feed table 34 can be actuated to feed the top sheet of a paper stack into the machine. Before describing the verifying mechanism, the drive control, etc., the paper feed, by means of which precise sheet-by-sheet feeding is possible for a variety of paper sizes and weights, should be explained.

10S821 / 122Q

The feed table arrangement 34 includes a table 5o with an upper table wall 52 and a lower table wall 54, which are delimited from one another and form a housing H therebetween for receiving a mechanism (Fig. 8). Off the table protruding and movably arranged on it (the table is in a horizontal position when the machine is ready for operation) left and right side guides 56, 58 are provided, which are adjustable to each other in order to guide the paper stack laterally according to the paper width. The symmetrically arranged and adjustable side guides 56,58 have upstanding guide flanges 56a, 58a and horizontal support flanges 56b and 56. 58b, which rest against the upper table wall 52 and protrude beyond it, as can best be seen from FIG. The guides 56,58 extend from the front to the rear of the Machine with the support flanges 56b, 58b extending over the leading edge 5oa of the table 5o, as shown in FIG. 8 can be seen and will be explained in more detail below. The guides 56, 58 are adjustable relative to one another by being aligned in the upper table wall 52 and extending transversely Guide tracks 52a, 52b are provided which receive latching mechanisms 56c, 58c carried by the guides 56,58 and can be locked or released by conventional levers 56d, 58d. Along the machine extends in a separate Distance in the direction of the feed from the table a horizontally fixed feed table 6o, over which the top sheet is fed to the replication mechanism 62. The fixed feed table 6o is on the opposite one Side panels 4o, 44 of the machine are suitably attached and located at a certain height relative to the duplicating mechanism 42 to attach the top sheet to the duplication mechanism feed along a suitable feed path.

Between the edge 6oa of the feed table 6o and the edge 5oa of the feed table © 5o protrudes from the feed table 6o an attached wall 64 against which the leading

1Ö9SM / 1220

Edge of the paper stack S strikes when the feed table is loaded (compare Figures 4, 7, Io and 11). The wall 64 is a distance between the edge 5oa of the table 5o and the edge 6oa of the feed table 6o arranged so that they as Guide track for left and right corner separators 66,68 is used, which are mirror images and relative to the longitudinal center line of the adjustable table 5o and the side guides 56,58 are arranged. In this embodiment, the Wall 64 is provided with right-angled lugs 64a, 64b at opposite ends, which at opposite sides of the fixed feed table 6o (see Fig. 7) arranged are. In addition, an additional support device for the wall " 64 may be provided along the longitudinal center line of the table, if this does not require the adjustment of the corner separators 66,68 with special needs. ·

The corner dividers 66,68 are laterally in two Types adjustable: (1) together with and (2) simultaneously and independently of the relevant side guides 56,58. At any When the position of the side guides 56, 58 is set, the corner separating devices 66, 68 are independently adjustable around the left and the right front corner of the paper stack S in different Overlapping amounts to provide adjustable engagement at the front corners of the stack S to enable a suitable feed for different paper weights and different stiffness, working speed, etc. take place can. The corner dividers 66,68 are mirror images carried out and the adjustment independent of the side guides 56,58 takes place at the same time. Therefore, just one is enough To describe corner separator 66, in particular in conjunction with FIGS. 7 to 11.

The corner divider 66 has a support plate 66a which extends behind and in a plane parallel to wall 64, and an adjustable flange 66b which is C-shaped and extends above and below wall 64 and protrudes forwardly from wall 64 at right angles. The flange 66b is through

10 * 021 / 12-20.

- Io -

Actuated operating mechanism, which is in the housing H of the Table 5o is arranged. The flange 66b engages when the feed table 34 is pivoted to its horizontal working position, but disengages when the feed table 34 is closed. The corner dividers 66,68 remain on the guide track which is given by the wall 64 when the feed table 34 around the pivot pin 46 in its closed position is pivoted. When the feed table 34 is pivoted again into its horizontal working position, the actuating mechanism again engages the corner separators 66,68. A triangular shaped plate 66c extends horizontally across the wall 64 and overlay the relevant corner of the stack S to engage in separation, so that the top sheet is fed while the remaining sheets of the stack S are retained. The support plate 66a and the actuating flange 66b delimit one another in the longitudinal direction extending cutout which surrounds the wall 64, with a sufficient gap being provided so that panel 66c falls onto the top of wall 64 as the stack below is removed, with all of the divider 66 can balance up and down with respect to the stack so that the plate 66 in use normally rests on the top sheet and floats free from the guide and support track 64 (see Fig. 11).

The separator 66 includes an inwardly extending arm 66d which is in the same plane as the support plate 66a extends and ends in the right-angled approach (see Fig. 11), which at the cutout. 6.6f is provided. By the cutout 66f of the guide extension 66e and the corresponding cutout of the guide extension of the separating device 68 extends, a floating stabilizing rod 69, which ensures that the devices 66, 68 together move with each other and do not include an angle to each other. The stabilizing bar 69 is under the table 6o and behind of the wall 64 and ends short of the opposite sides thereof in order to exert a stabilizing function without

1GÖ831 / 1220

- - 11 -

to obstruct the other machine components. The length of the Rod 69 corresponds to the devices 66, 68 in their various positions, which are determined by the adjustment of the side guides 56.58 are required. ·

The operating mechanism through which both the overall setting of the separating devices 66,68 corresponds to the setting of the side guides 56,58, as well as an independent fine adjustment of which takes place in any set position of the side guides 56, 58 is arranged in the housing H. The operating mechanism includes left and right support plates 7o and 72 and a common L-shaped fine actuator 74. The support plates 7o, 72 extend in a common end below the upper table wall 52 and have connecting Fingers 7oa, 72a, which with the respective downwardly bent lugs 56e, 58e on the adjacent, protruding ends of the flanges 56b, 58h are coupled. Adjacent to their opposite Ends of the carrier plates 7o, 72 are provided on their inner sides with guide fingers 7ob, 72b, which extend through the relevant transverse guides 52a, 52b extend in the upper table wall 52 and on the adjacent inner edges of the flanges 56b, 58b are attached (compare 7ob in Fig. 7) »Separate from the guide fingers 7ob, 72b are at the same end of the carrier plates 7o, 72 guide pins 7oc, 72c provided in transverse guides 52a, 52b are included. When the usual ratchet mechanism 56c, 58c is released by actuating the finger pieces 56d, 58d the side guides 56, 58 can be moved and at the same time move the carrier plates 7o, 72.

Left and right double levers 76, 78 are articulated on the carrier plates 7o, 72. The levers 76, 78 are articulated at the points 76a, 78a and have forwardly projecting actuating arms 76b, 78b which end in a fork and each engage with the left and right separating device 66, 68 (compare FIGS. 7 and 10) . The levers 76,78 have further laterally projecting arm "76c, 78c whose end are bifurcated in the same manner and with the common Bejitätigungsflansch 74a on the actuating

10012171220

BATH ORIGINAL

member 74 are engaged. Springs 8o, 82 are used to bias the actuating cup 76b, 78b in an opposite direction Clockwise or clockwise to pivot 76a, 78a and also push the forked arms 76c, 78c into one tensioned position against the actuating flange 74a. When the side guides 56,58 move towards or away from each other there is a corresponding movement of the carrier plates 7o, 72 and an adjustment of the separating devices 66, 68 via the actuating arms 76b, 78b. The second setting of the separating devices 66, 68 becomes independent of the side guides 56,58 causes when the actuator 74 is moved towards and away from the edge 5oa of the table 5o, as indicated by the double arrow is shown in Fig. 8 and by the dashed line of the set position for the flange 74a. If the Flange 74a is moved, a simultaneous and opposite symmetrical adjustment of the operating levers 76,78 causes, as well as a corresponding independent fine adjustment of the separating devices 66,68. The common actuator is slidably supported in three places by pins that protrude through angled elongated holes, for example by pins 74b, the are attached to the upper wall 52, and protrude into elongated holes 74c in the lower left end of the link 74 (see Fig. 9).

The desired adjustment movement can be effected on the common actuating member 74 in any suitable manner, for example through the use of a fine adjustment knob 84 on top wall 52 on one side thereof (see Figure 7). The button 84 has a middle position that is transverse to the wall 52. Counterclockwise rotation of knob 84 provides independent fine adjustment of the separators 66,68 with respect to one another for engagement with the top sheet to increase. When the knob 84 is turned clockwise, the devices 66, 68 are appropriately set apart, to reduce engagement with the top sheet. The button has a finger piece 84a overlying the wall 52 which is on a vertical pivot 84b is arranged, the one

1O0 & 21 / 122O

- 13 -

Eccentric 84c carries (see Fig. 9), which is in an elongated hole 74d, which is formed in the operating member 74, protrudes. A hold-down plate and spring 74e are on the link and are engaged via pivot pin 84b and a washer 84d. A common locking mechanism can be assigned to the button 84 to its exact setting position to ensure. This mechanism can have a number of specific fine adjustments, or if desired be continuously adjustable.

The feed table 34 is a riser table that is automatically raised so that the top sheet of the stack S is fed to the machine at a certain level regardless of the height of the paper stack S. The support device includes identical inverted L-shaped beams 86, 88 (compare FIGS. 1, 4, 12, 17) which are arranged on the opposite sides of the machine within the left and right side plates 40, 44. The carrier 86 is displaceable in the vertical direction by at least two sliding blocks 9oa _# 9ob which are carried by the carrier 86 and are guided in aligned vertical guides 4oa, 4ob formed on the left side plate 4o (see FIGS. 5 and 4). Correspondingly, the right-hand carrier 88 is mounted on sliding blocks 92a, 92b, which are guided in vertically aligned guides 44a, 44b in the right-hand side plate 44 (see FIGS. 12 and 17). The guide blocks are expediently made of such a material that they do not require lubrication.

The forwardly projecting arms of the respective supports 86,88 form pivot pins 46a, 46b on opposite sides of the Machine for the feed table 34.

Along their rear edges are those that extend vertically Arms of the carrier 86,88 are provided with a support frame 86a, 88a (Figures 4 and 17) so that the feed table34 through a drive shaft 94 can be raised or lowered, which is

100821/1220

extends between opposite sides of the machine and carries actuating pinions 96a, 96b which are attached to the racks Attack 86a, 88a. The shaft 94 can be on one side of the machine extended (i.e. on the right side of the machine) and with a button for manual lifting or Lowering the feed table 34 may be provided. The following is the mechanism for automatically lifting the feed table to be discribed.

Before a detailed description of this mechanism, which can be operated by the main drive of the machine by manual operation or motor drive, the construction and the arrangement of the main drive will be explained in more detail. The main drive includes a main shaft 98 extending from opposite one another Sides of the machine above the feed table 34 and in front of the duplicating mechanism 62, the Main shaft 98 is supported in bearings on the opposite side plates 4o, 44 of the machine. The main shaft 98 extends passes through the right side panel 44 and through the right cover 42 and carries a detachable handle loo. The main shaft 98 also extends over the left side panel into the adjacent housing where it travels in one direction from the Plate 4o outwards a cam Io2, a release cam Io4, carries a gear Io6 and a second drive cam Io8. Instead of manually rotating the main shaft 98 by the crankshaft 12, the gear Io6 can be driven by a motor will. As can be seen from FIGS. 1 and 4, the motor, the reduction gear and the associated parts are all arranged on the front upper cover 45 and by conventional connecting elements 112,114,116,118,12ο and 122 with one another connected to drive the pinion 124 which meshes with the gear Io6. A coupling 126 is provided so that the engine llo and the reduction gear of the. Main shaft 98 are disengaged when the machine is over the Crankshaft is operated loo.

100821/12) 0

Either manual operation or motor operation of the machine is possible. However, since the engine Ho and all associated components, such as the transmission, the clutch, the control devices (control devices 394, 396) are arranged on the front, upper plate 45, the changeover to engine operation can be carried out simply by replacing the upper plate 45 which contains the motor and associated components and uses pre-drilled holes in the left side plate of the machine frame for wiring and connection. In manual operation, the space in plate 45 (see Fig. 4) is not used. Since the machine Λ is described for engine operation, further details of the control devices and associated mechanisms will be explained in more detail below.

The mechanism for the riser table will be explained in more detail with reference to FIGS. The shaft 94 extends over the left side plate 4o, where it ends at a support arm 128 which is arranged for a stop next to the left side plate. Within the support arm 128, a climbing wheel I3o for the climbing table is arranged on the shaft 94, the actuation of which raises the feed table 5o according to the tooth spacing of the climbing wheel 13o. The climbing wheel 13o is gradually rotated by the cam Io8 via the lever 132 with a cam roller and an M pawl 134 which is articulated thereon. The lever 132 is supported on a support shaft 136 which is attached to and protrudes from the lever 132 which carries a pick-up roller 138 which is pressed against the cam 1θ8 by a member 14o. The roller 138 is also pressed against the cam Io8 by a spring 142 which is attached to the lever 13 2 and to the support arm 128. Periodically and in accordance with the configuration of the cam Io8, the pawl rotates the climbing gear I3o to raise the device 34 in stages, the lever 132 rotating in the counterclockwise direction about the pivot pin 137. During its return movement, the lever 132 actuates second feed rollers 224, 226, as will be described in more detail below .

109821/1220

The limiting element 14o works with the cam I08 together and forms a double-limited cam path therebetween which prevents the lever 132 from moving clockwise rotates about pivot pin 136 due to the weight of device 34 and the stack of paper thereon, whereby a clockwise force is exerted on the climbing wheel 13o.

A holding pawl 144, which is articulated at the point 146 on the support arm 128, also engages the climbing wheel 13o. At a release lever 148 is arranged on the holding pawl 144, which is pivotable about a common pivot pin 146. The lever 148 is biased by a spring 15o to to cause engagement of the retaining pawl 144 with the climbing gear I3o, which spring is connected to the lever 148 and on the Side wall 4o is attached. Normally, the pawl 144 controls due to the bias of the spring 15o Movements of the climbing wheel I3o when this is counterclockwise due to the influence of the actuating pawl 134 turns. The lever 148 has a left finger 148a which is located under the projection 134a on the actuating pawl 134 lies. When the lever 148 is rotated clockwise about the pivot 146 and the influence of the spring 15o, Not only is the retaining pawl 144 released from the climbing wheel 13o, but the finger 148 also grips the shoulder 134a to lift the actuating pawl 134 off the climbing wheel 132. As a result, the table 34 is in its lowest position for a reloading released. The release lever 148 is actuated by the release arm 153, which is attached to the pivot pin 153 is articulated on the lever 158. The arm 152 has a finger piece 152a, which extends through a cutout 4oc, which in the left side panel 4o at a suitable location and to the left of the device 34 (Fig.l) extends. Therefore, by depressing the finger piece 152a release the device 34, whereby it returns to the lowest position due to its own weight.

109021/1220

Egg. -17-

As can be seen from FIG. 6, the feed table device 34 can also be lifted manually. On the shaft 94, a double lever 154 is arranged, which at its lower Arm 154a carries an auxiliary pawl 156 which is articulated at point 158 is. Normally, the auxiliary pawl 156 is disengaged with the climbing wheel 13Θ held by the stop 160, which on the left side plate 40 is attached and strikes against the shoulder 156a of the pawl 156. The auxiliary pawl 156 is against the climbing wheel 130 biased by a spring 162. However, the spring can do not exert their pre-tensioning force as long as the lug 156a is in contact with the stop 160. However, when the lower arm 154a of the Lever 154 is pivoted in the counterclockwise direction about the shaft 94, the auxiliary pawl 156 is raised until "none There is engagement with the stop 160 and the spring 161 biases the pawl into a working position in which there is engagement with the climbing gear 130. This is done by using an additional actuating arm 162 which is hinged to the left side plate 40 on the pin 164 and has a finger piece 162a, which extends through a cutout 40d extends in the plate 40 and is accessible at a suitable location by the surgeon, as shown in FIG. The arm 162 is connected to the arm 154b of the lever 154 through a linkage 166 connected, which has a pivot connection 168 with the Arm 162 and a pivot connection 170 with the upwardly extending Arm 154b of lever 154 has. The arm 162 is biased by a spring attached to the left side panel 40. By pressing down the finger piece 162a, the arm 162 is therefore pivoted clockwise about the pin 164 (see FIG. 6) and the linkage 166 shifts the lever 154 so that the auxiliary pawl 156 comes into contact with the climbing wheel 130 by the spring 161. For each depression of the finger piece 162a there is a corresponding lifting movement, which is caused by the movement the pawl 156 is exerted on the device 34 via the climbing gear 130.

Above the table 50 is a feed device 174 in FIG. 1 provided, which left and right support plates 176, 178 (Fig. 1, 4 and 17), which are located on the inside of the left or

1000217 12-2ft

v - "' ^: -.' ■■ '■■ ■■■■■■ .-'

right side plates 40, 44 are mounted. The carrier plates 16 and 178 are connected at their upper front ends at a distance from the bearings 180, 182 by a rigid lifting rod 184 which extends transversely through the machine and serves to connect the carrier plates 176, 178. Below and parallel to the lifting rod 184 is a shaft 186 with a rectangular cross-section, which carries two feed rollers 188, 190 with rubber treads, which are arranged within the side guides 56, 58 and are in such a working position that they are on the Attack the top sheet S _{1 of} the stack of paper S. The shaft 186 is supported on the carrier plates 176, 178 by bearings 176a, 178a, the bearing 176a being self-centering and the bearing 178a releasable so that the shaft 186 can be removed and thus worn rollers 188, 190 can be replaced. The feed rollers 188, 190 are periodically rotated through an appropriate angle (counterclockwise in FIGS. 2 and 3) for paper feed by a drive via the shaft 98 and the cam 202, as will be described in more detail. The shaft 186 is connected to its drive (see Figs. 1 and 17) via a one-way clutch 192, which has a conventional construction, and either a drive of the rollers 188, 190 or free rotation in the feed direction (clockwise in Fig. 17), but blocks the feed rollers in the opposite direction (counterclockwise in Fig. 17). The driving side of the clutch 192 is connected to a gear 194 which, via an idler gear 196 on the carrier plate 178, meshes with a drive gear 198 which is provided on the shaft 182 and extends to the outside of the right side plate 44 (Fig. 12). The shaft 182 carries a double lever 200 which is actuated by a multi-function cam 202 which is provided on the adjacent end of the main shaft 98. The cam 202 is engaged by the cam roller 204, which is mounted on the lever 206, which is articulated on the right side plate 44 at the point 208. The lever 206 is connected to an arm of the actuating lever 200 by a connecting rod 210 which is attached to the lever 206 at the point 202 and to the lever 200 at the point 214.

is steered. The other arm of the operating lever 200 is with connected to a spring 215 which biases the cam roller and is anchored to the right side plate 44 - by the spring the linkage 210 is pushed in a direction that the cam roller 204 rests against the cam 202. In this way, depending on the drive of the main shaft 98, the desired periodic motion exerted on the first set of feed rollers 188, 190 to the top sheet of the duplicating mechanism 62 feed.

The pawl 134 for lifting the paper can be disabled when the table is at a suitable height located around the top sheet S, the duplication mechanism to feed. For this purpose, a finger 216 (Fig. 6) for lifting the pawl is arranged on the left side plate, which at location 218 on the left side panel 40 above the Cutout 4Oe is attached. The finger 216 is supported by a spring 220 biased, which is anchored to the left side panel 40, in a releasing position in which no obstruction of the Engagement of the actuating pawl 134 with the climbing gear 130 is present. The finger 216 has a lug 216a that extends through the Cutout 40e extends and can come into engagement with a nose 176a on the left support plate 176 (FIG. 4). If As the height of the stack decreases, the carrier plate 176 becomes the Means 174 counterclockwise about the axis 180 pivoted, whereby the nose 176a comes into contact with the projection 216a. As a result, the finger 216 (FIG. 6) is lowered and allows the pawl 134 to engage the climbing gear 130 to raise the table 50 to the required elevated position corresponding to FIG To raise the stack height. When the stack S is brought into the appropriate position, the feed rollers 188, 190 are raised accordingly, the support plate 176 rotates clockwise about the axis 180 pivoted and the nose 176a is pivoted into a position in which the finger 216 is pressed back into its lever position in contact with the actuating pawl 134, thereby lifting the pawl and is made ineffective until another height has to be set again. On the opposite side of the machine (Fig. 17) a stop 222 is provided which is attached to the carrier

109821/1220

gerplatte 178 abuts to the movement of the device 174 in Clockwise to limit axis 182 ..

Along the paper feed path to the duplicating mechanism 62 two further feed rollers 224, 226 (Figs. 4 and 19) are provided which are located in corresponding cutouts of the feed table 60 are provided. The feed rollers 224, 226 have a covering made of rubber or other elastomeric material and protrude through the cutouts to engage the underside of the sheet being fed. The additional feed rollers 224, 226 are attached to a shaft 228 that is journalled on the side plates 40, 44. The wave extends left and right from the machine into the housing, as can be seen from FIGS is. The shaft 228 is periodically driven by the main shaft 98 of the machine via an adjustable mechanism with a backlash which allows the adjustment of the sheet feeder to be made in consideration of the duplicating mechanism 62 to allow different orientations between the fed paper and the stencil. As shown in Figs. 6, 19 and 20, this mechanism has a drive rack 230 adjacent to the left side plate 40, which is mounted at the point 137, and has a support arm 23Oa and a segment-shaped rack 23Ob. The rack 23Ob is with a drive gear 232 on the adjacent end of the shaft 228 engaged. Inside the gear 232 and also on the outside of the plate 40, a pretensioning spring 234 is arranged, which is anchored to the engine room, expediently on support arm 128. Spring 234 is connected to feed roller 228 to bias the shaft in a clockwise direction. Of the Rack arm 23Oa has a pick-up member 23Oc which can come into engagement with an actuating shoulder 132a on the lever 132, which attachment rotates clockwise about axis 137 on the basis of the cam 108 on the shaft 98 (see FIG. 5). Depending on the position of the setting of the pick-up element 23Oc on the drive rack 230, there is a relative backlash of the projection 132a to the tap member 23Oc. After such a backlash, the rack segment 23Ob is clockwise about the axis 137 driven to shaft 228 in a counterclockwise direction

109821/1220

to rotate, as well as the feed rollers 224, 226, which in turn exert a feeding motion on the underside of the fed sheet.

Successive sheets are against the feed rollers 224, 226 pressed by an arrangement of idle rollers or = pinch rollers, which pinch rollers 236 (Fig. 4), which on a Shaft 238 are arranged / which are coaxial with the bearing points 180, 182 is stored. For paper feed, the pinch rollers 236 are counterclockwise about their axes pivoted downward, as shown schematically in FIGS is. As can be seen from the illustration, " it applies to the sheet that is nipped between the feed rollers 224, 226 and the pinch rollers. The sheet becomes the replication mechanism 62 as a function of the actuation of the further feed rollers 224, 226. The pinch rollers 236 are raised and lowered by cams 102 (Figs. 1 and 4), by providing a roller tap 240 on the arm 242 which protrudes through the cutout 40f in the side plate 40 and engages cam 102. The arm 242 is rigid with the shaft 238 connected, which the support arms 244 for the pinch rollers 236 carries.

A paper stop 246 protrudes above the feed table 60 at a point which practically corresponds to the indentation of the feed rollers 224, 226 and the pinch rollers 236, which is mounted at the point 248 and through a spring 250 (FIG. 4) into a die ™ The stop 246 carries an actuating pin 252 which can be engaged by a finger 244a on the support arm 244 so that, in response to a clockwise rotational movement of the support arm 244 around its bearing parts 180 _# 182 and when the Pinch rollers 236 with the feed rollers 224, 226, the stop 246 is pulled out of the feed path to enable unclean, unhindered paper feed, as can be seen from FIGS. 2 and 3.

Note that the time in machine cycle V during which the feed rollers 224 _# 226 are driven with respect to the initiation of a machine cycle is the position of the leading edge of the paper with respect to the image on the original

10 9 8 21/12 2 0

■ ORIGINAL INSPECTED

determines which one is located on the aging mechanism 62. This relative position is controlled by the backlash of the operating projection 132a relative to the Abgriffglied 23oC * A setting for this lost motion, the mechanism allows in FIGS. 12 _f 19 and 20. As shown in Fig. 12 can be seen, on the outer side of the right Side plate 44 an adjusting rack 254 which engages a gear 256 at the adjacent end of the shaft 228. The rack 254 is connected via a pick-up element 254a to the spiral curve 258a of the height adjustment knob 258, which is arranged on the right side plate 44 and can be adjusted by the surgeon (see FIG. 1). The gear wheel 256 is connected to the shaft for the feed rollers are connected by a "three-part mechanism" shown in FIGS. 19 and 20. This mechanism includes an adjustable sleeve 260 attached to gear 256 and movable as a unit therewith, an intermediate sleeve 262, and a grip sleeve 264 "attached to shaft 228". Adjustable sleeve 260 has a radially extending rib 26Oa, which, as a function of a rotation of the gear 256, exerts an adjusting movement on the rib 264a on the sleeve 264 via the middle rib 262a of the sleeve Displaced distance, before a ^ & ngriff with the pick-up member 23Oc takes place on the rack 230, which exerts the feed movement on the shaft 228 and its feed rollers 224, 226.

The device for feeding paper also contains a pressure roller 266 (FIG. 4), which is used by the replication mechanism 62 is disconnected during the non-printing portion of the machine cycle, according to the control of a blocking device 268 for the pressure roller o In the following, the pressure roller 266 and their actuation mechanism is described, »The pressure roller 266, which has a surface made of an elastomeric material is on a shaft 270 is arranged, which in turn is mounted on an arm of a crankshaft 272, which at the point 274 on the machine frame is stored. D & e other arm of crankshaft 272

10 9 8 21/12 2 0

'ORIGINAL SiMSPECTED

is connected to a double lever 276, which at point 274 is mounted on the outer side of the left side plate 40 (see FIG. 6). The lever 276 is at the bearing point 278 with the Crankshaft 274 is connected through a window 40g in the left side plate 40 (see Figs. 4 and 6). The lever 276 carries a tap member 280, which engages cam 104 on shaft 98, by which cam the pressure roller can be released. As can be seen from Fig. 5, a spring 282 is for the Press roller by a suitable support arm 284 on the left Side plate 40 is arranged and is connected to the support lug 276a with the double lever 276. The spring 282 is used when it is released by the tap member 280, the pivot pin 278 at the lower end of the double lever 276 in the clockwise direction ™ to rotate (Fig. 6), thereby turning the crankshaft 274 (Fig. 4) in the counterclockwise direction to the pressure roller 266 and against the duplication mechanism 62 to print. The pressure on the pressure roller 266 is determined by the setting of the spring 282.

The pressure roller 266 has a working position shown in FIG. 4, which is shown schematically by the solid lines in FIGS. 2 and 3, and a working position 266 'against the reproduction mechanism, as shown by the dashed lines in FIG middle layer 266 ^! ', which results from the control of the blocking device 268, which prevents the pressure roller 266 from touching the duplicating mechanism ((62 if no partially fed sheet is detected, so that no color imprint is made, which would contaminate the pressure roller 266. _The blocking device 268 which performs this function has a feeler 268a and a copy arm 268b (Fig. 4) which are rigidly connected to one another and are arranged on a single shaft which is mounted in the bearing 268c on the machine frame. The blocking arm 268b extends through the cutout 4oh in the left side panel 4o in such a way that it can be touched by a projection 276b on the arm.

108021/1220

dotted line to the left of that shown in solid lines Position in Fig. 6) in the position with solid lines to move, the member 2.68 b blocks the tapping member 28o and lifts it off the cam Io4 .. (dash-dotted representation left in Fig. 6), which results in the blocked position for the pressure roller 266 / with the machine rotating / but the Print roller 266 is not contaminated with dye / no sheet is fed.

The duplicating mechanism 62 has two printing cylinders / (two drums), as can be seen from FIG. It is a Upper pressure cylinder 286 is mounted on an upper shaft 288 and a lower pressure cylinder 296 is mounted on a lower shaft 292. The replication mechanism 62 carries the usual mechanism for attaching a stencil to a blanket made of silk and to connect the two cylinders with a suitable belt drive for simultaneous rotation of the entire Furnishings. As can be seen from Fig. 5, the lower shaft 292 is driven by a drive gear 294 via a main drive gear Io6 powered / while the drive connection to the upper cylinder and the blanket is not shown because conventional devices can be used.

Conventional paint distribution rollers 296/298 and an exchangeable paint tube 3oo are provided between the cylinders 286 / 29o. The mechanism which is used for the axial movement of the inking rollers 296/298 during operation of the machine is to be described with reference to FIGS. 12/15 and 17. On the right side of the machine, the right side plate 44 is provided with cutouts 44c / 44d through which the shafts 296a , 298a protrude. These shafts have circumferential grooves, of which oscillating arms 3o2 / 3o4 are received, which are mounted at the points 3o2a, 3o4a on a common actuating yoke 3o6. The arms 3o2 / 3o4 are biased towards each other and in engagement with the shafts 296a, 298a by a spring 3o8, a limitation being given by stops on the yoke 3o6. As can be seen from FIG. 12, the yoke 3o6 is supported on the outer side of the right side plate 44 by arms 3Io, 312 which

109821/12 2 0

ORIGINAL INSPECTED

Form yoke bearings 314,316. The yoke 3o6 is around the coaxial Bearings 314,316 from main shaft 98 through a swash plate drive 15, which has drive disks 318,32ο which are offset according to FIG and include a swash plate 322 between them. The swash plate 322 is integral with the yoke 3o6 with a right-angled connection extension 3o6a on the arm 3o6b a connecting pin 324 is connected. Depending on one Rotation of the main shaft 98 is therefore caused a reciprocating movement of the inking rollers 296,298, which at the same time by the Cylinders 286, 29o are rotated. Through the simple measure of spreading the arms 3o2, 3o4 against the action of the spring 3o8, the clamped rollers can be removed. . ■

The following describes the mechanism for supplying paint to the paint manifold 3oo, both for manual operation and for automatic operation. The staining distributor is a common one. JSinhe it, which contains an insert for regulating the supply of dye to the cylinders 286, 288 through the control button 326. The paint tube 300, the associated gears and the knob 326 are all arranged on a common carrier plate 332 which is slidably and removably arranged on a support arm 334 which is attached to the outer side of the right side plate 44. Further, the support plate carries a fixed ink supply tube 336, which is connected to the inner space M of a color ink cartridge 338 which includes a body 338a and a cover 338b, 332, which serves as a piston. In response to the movement of the cover 338 from its upper position, when the body 338 is filled, to a lower position adjacent the bottom of the body, the paint I is forced up through the coloring line 336 into the cartridge 33o. The paint tube 336 carries a pressure plate 34o. The housing 338a of the cartridge 338 moves upward relative to the piston cover 338b. This movement continuously carries paint to the manifold 3oo. For this purpose, a lifting of the paint stand 342 is provided, which has a platform 342a and an upright support 342b, whereby a vertical movement

1-0-Θ82Ί / 1-220

a support arm 344 attached to the right side panel 44. At its rear is the frame 342 provided with a rack 342c to which a gear 348 the shaft 35o attacks. The shaft 35o also carries a climbing gear 352 / on which an actuating pawl 354 and a retaining pawl 356 attacks. A downward stroke of the actuating pawl 354 rotates the climbing wheel 352 clockwise, whereby the gear 348 is driven in the same direction and raises the platform 342a to transfer paint from the cartridge 338 through the Color line 346 to be transported on the cylinders 286,29ο. The pawl 356 is at 356a on the right Side plate 44 is hinged and is pressed into the locking position by gravity. The pawl 356 has an approach 356b, which is in the path of the upward movement of the finger 342d located on the platform 342 so that the retaining pawl 356 is lifted to release from the climbing wheel 352 when the cartridge is empty.

The machine has means for effecting a downward actuating stroke of the. Actuating pawl 354, both for manual operation and for motor operation. The automatic paint supply system contains a mechanism which adjusts the frequency of the pumping strokes on the actuating pawl 354 within a wide range around the required To deliver the amount of ink to the duplicator 62. The setting can be between a hub for Io machine cylinders and a stroke for 70 machine cycles, depending on the amount of paint required for the stencil used.

The manual ink feed system contains (Fig. 17) a self forwardly extending lever 358 which is located on the inside of the right side plate 44 under the top plate 45, and which has a finger base 358a on the front of the machine which is depressed by the operator (see FIG. 1) when paint is needed = The lever 358 is mounted at the point 36o on the inside of the plate 44

1098 21/1220

and by linkage 362 through cutout 44e connected to the lever 364, which is hinged to the pivot pin 366 on the outside of the plate. The linkage 362 has an override slot 362a at one end around which Actuating pin 358a on lever 358 to be removed. The other end of the linkage 362 is on one arm of the lever 364 hinged by a pin 368, while the other arm of the lever 364 is articulated with the pin 37o on the actuating pawl 354. The spring 372 (FIG. 12) presses the actuating pawl 354 against the climbing wheel 352. By pressing down the finger base 358a, the lever 358 therefore rotates in the clockwise direction around its pivot pin 36o and pin 358b pushes against the outer end of slot 362a / to pull linkage 362 up. This movement is via the lever 364 transferred into a downward movement of the actuating pawl 354, to raise the paint stand 342a by rotating the climbing wheel 352.

When the lever 364 is automatically operated, the isolates Override slot 362a controls the movement of the linkage 362 from the lever 358 for the paint supply, which remains stationary. .

The automatic paint supply system can be adjusted by the surgeon and enables supply strokes of the actuating pawl after any predetermined number of machine cycles, which is best seen in FIGS. A double lever 374 is articulated at a point 366, of which an arm carrying the pick-up roller 376 is adjustable on the Cam 2o2 on the main shaft 98 engages, while the second arm of the lever 374 via a linkage 378 with a mechanism 38o, which periodically moves the output linkage 382. When the linkage 382 is moved, an arm of the pushes Actuating lever 364 automatically the pawl 354 down to a to ensure automatic ink feed. Such feed strokes are provided after a predetermined number of machine cycles, such as by setting a sliding one

1 098217 122Ö

Pingerstücks 384 is determined / which is under the cover the machine is arranged (compare Figures 1 / 12,17). That Linkage 378 is adjusted by a sliding plate engaging / by the stroke of lever 374 on the pivot pin to control. The spring 388 presses the pick-up member 376 against the cam 2o2 in the set position with a margin, which is determined by setting the linkage 378 via an approach 378a for the stroke adjustment, which extends through the cutout 44f on the side plate 44 extends. This setting is to be described in connection with FIGS. 16 to 18. The linkage 378 has a pivot connection 39o with the drive arm 38oa of the movement storage mechanism 38o, which is a type of one-way clutch which excludes a dead gear.

As can be seen from Figures 15 and 16, the mechanism 38o is made possible by the linkage. 378 via the actuating arm 38oa operated, and has a fixed central pin 38ob, on which an inner drive member 38ob is mounted. The drive member 38oc is from an outer guide rail member 38od surrounded. Several clutch rollers 38oe are.between .the Links 38oc, 38od are provided and have suitable seats 38of on link 38od. Depending on the rotary movement in the Clockwise of the link 38oc (Fig. 16) by an upward movement of the linkage 378, the rollers 38oe rotate over the Sit 38of the limb 38oe clockwise. This will be stepped clockwise movements caused by the diametrically opposed drive pins 38og, 38oh, which after a rotation of I8o successively with the linkage 382 are connected to the cutout 382a. Therefore, depending on step movements, the Linkage 378 executes because of the pick-up member 376, (which Movement steps through the small arrows in a clockwise direction are indicated in Fig. 16), the engagement pins 38og, 38oh periodically in the cutout 382a to the linkage 382 through to pull an actuation stroke which is sufficient to

10SSSM / 1220

apply a feed stroke to the actuator linkage 354, thereby providing the required automatic feed motion the climb wheel 352 occurs.

To ensure that the storage mechanism 38o collects exactly the clockwise incremental movements exerted on it, there must be some considerable backlash or reverse clockwise movement is avoided will. A backlash would lead to the small movement steps would be canceled during each machine cycle, which is why a holding member 38oi is provided which the Surrounding limb 38od. The link 38oi is through the support arm 38oj and anchor pin 38ok to the right side plate tied together. Between the driven member 38od and the stationary holding member 38oi are a plurality of clutch rollers 38ol provided, which rest on seats 38om, a member 38oi and are arranged opposite to the seats 38of. Therefore, the driving motion is accumulated in the mechanism 38o and to the driven member 38od and then to the Output linkage 382 is passed clockwise as a function of inputs, with any clockwise movement is prevented by the rollers 38ol acting in the opposite direction, which against the stationary seats Wedge 38om on the holding member 38oi.

From the foregoing it can be seen that the entire stroke of the linkage 378 by the cam 2o2 and the relative to this set position of the pick-up roller 376 is determined is. When the pick-up roller 376 is fairly close to the cam 2o2 is moved, it moves a lever portion of the cam sooner and causes the linkage 378 to move more upward Linkage is biased by spring 388 about pick-up roller 376 in a counterclockwise direction about axis 366 (compare FIG. 12) to move into a limit position which is close to the cam 2o2 and through the bottom wall of the cutout 44f is determinate. When the linkage 378 is through the settings of the Approach 378a is moved upwards, becomes less and less

fO'9821 / 1220

- 3ο -.

of the total stroke of the cam 2o2 via the pick-up roller 376 transferred to the linkage 378, so the clockwise stepping movements to the arm 38oa accordingly decrease. Therefore, there is a greater number of machine cycles and rotations of the cam 2o2 required to achieve sufficient Store movement in the mechanism 38o to the output linkage. 382 between its layers with solid and dashed lines, which is a step of the Steigrads 352 correspond to deliver a predetermined amount of paint into the paint manifold 3oo. As already mentioned, the setting of the shoulder 378a is done by the finger piece 384 on the plate 45 of the machine. As shown in Figures 1, 17 and 18, the finger piece 384 is laterally slidable through for controlling the ink supply a block 384a which extends into the cutout 45a on the plate 45. With the finger piece 384 is a cam plate 386 connected to an angled cam portion 386a. A pick-up member engages on the curve part 386a 389, which is hinged at the point 391, umcium an'HÜJesent essential horizontal axis corresponding to the lateral displacement of the cam 386 to be adjusted. The arm 389 has a tap arm 389a (cf. Fig. 17), which engages the curve part 386a, and an arm 389b (see Fig. 18), which at a distance and parallel to the arm 389a and practically at right angles to it in a position that it is under the adjustment shoulder 378a is on the linkage 378 and engages it. If that, finger piece 384 is pushed to the right (see FIG. 1) the arm 389a rotated in the opposite direction about the axis 391a (see Fig. 17) to lower the arm 389b, whereby the shoulder 378a falls off due to the tension of the spring 388. This brings the pickup roller 376 closer to its actuating cam 2o2 brought, whereby a larger part of the cam stroke is used and a faster storage of Rotational movements in the mechanism 38o is achieved, which are converted into more frequent pumping movements of the automatic ink supply will. Correspondingly, an adjustment of the finger

109 821/1220

INSPECTED

Piece to the left, in Fig. 1, a lesser utilization of the Cam strokes and a correspondingly slower movement approach and therefore less frequent pump strokes.

Above finger piece 384 on plate 45 is a motor control panel 392 is provided, which has a button 39 4 for switching on the motor and a button 396 for speed control has, whereby the usual variable resistor (see. Fig. 18) is controlled will. The motor button 395 turns the motor Ho on or off via a conventional circuit. In addition, there is a push button piston 394 a connected to the crank loo on the main shaft 98. As best seen in FIG. 15, the Crankshaft loo an inwardly pointing collar looa, which is provided with diametrically opposed cutouts loob which receive the corresponding pins 98b on the shaft 9 8. An adjustment of the crank loo on the shaft 98 to the outside (to the left in FIG. 15) releases the connection with the shaft 98. This is done before the motor Ho is energized in order to ensure that the crank loo does not move while the motor is in operation turns. As can be seen from FIG. 18, the piston 394a engages a double lever 4oo to disengage the crank on, which is stored at the point 4o2 and with a pull rod 4o4 is connected to the bearing point 4o6. The pull rod extends through cutout 44g in the right side panel 44 and engages a lever 408 (see FIGS. 12 and 15) which is mounted at point 316 and an arm 4o8a, which adjusts the crank loo before turning on the engine. Between the lever 4o8 and the pull rod 4o4 is a Means are provided to achieve an adjustment of the position of the lever 4o8 to an extent such that complete removal the crank is guaranteed in accordance with an adjustment movement of the lever 4o8.

In connection with Figures 12 to 14, the remaining control devices of the machine will be described, which are arranged on the front wall of the right cover 42, and from top to bottom a push button 4lo for the paper feed

■ 10982 1/1220 '

a push button 412 for switching off the paper feed and a push button 414 for releasing the pressure roller. With regard to push button 1 "4, it will be recalled that the blocking device 268 controls the release of the pressure roller 266 by the sensor 268a on the shaft 268c. When paper is fed, the sensor 268a is raised, thereby releasing the pressure roller 266. The push button 414 overrides this control and enables a release of the sensor 268a through the linkage 416 to the actuating arm 418 on the shaft 268c on the outside of the right plate 44 _: (compare FIG. 12).

The function of the pushbuttons 4lo and 412 will be explained in connection with FIG. 13, where the switched-on position is shown and in conjunction with Fig. 14, where the deactivated position is shown. The function of this control exists in either enabling paper feed by engaging the pick-up roller 2o4 with the cam 2o2 (See FIGS. 12 and 13), or the pick-off element 2o4 and its arm 2o6 at a releasing distance and relative to to bring the cam 2o2 (see FIG. 14). Normally, the lever 2o6 is biased by the spring 215 to be the pick-up reel 2o4 to press against the cam 2o2.

To simplify the operation of the surgeon, three options for switching off the feed are provided. A manual shutdown can take place by actuating the pushbutton 412, as shown by the arrow O ₁ in FIG. 14. An automatic shutdown takes place via the count of the counter 438, as indicated by the arrow O ₀ , and when the paper supply on the table 5o is used up, which is indicated by the position of the block 92b and indicated by the arrow O ₃ .

The order in which the Machine is switched on by hand. From Figure 14 it can be seen that the push button 4lo has a piston 4loa through

10 8 8 31/12 2 0

a spring 4Iod is biased and rests against a lever 42o. To the lever 42a and the piston engages 412a of the push button 412 to _f which also by a 4l2b spring biased. The lever 42o is connected via a spring 424 to a pawl 426 which interrupts the paper feed and which is mounted at the point 428 on the plate 44. The pawl 426 has a pawl seat 426a / which engages a pawl piece 2o6a on the lever 2o6 in order to hold it in the position in which it does not engage the cam 2o2. A stop 43o, which is fastened to the plate 44, is provided under the pawl piece 426. Normally, the pawl piece 426 is biased against the stop 43o by the spring 432 which is anchored in any suitable manner. The pawl piece 426 is released from its locked position, which is given by the stop 43o and its spring 432, by pressing on the arm 42oa of the lever 42o to rotate the arm 42ob clockwise about the axis 422 and pull over the Exercise spring 424 on pawl 426 to pivot pawl seat 426a counterclockwise about axis 428, thereby releasing lever 2o6, as can be seen from FIGS. 14 and 13.

Means are provided to lock the lever 42o in the on position so that it is only required is that the surgeon briefly depresses the push button 4lo. An intermediate pawl and release plate 434 are provided for this purpose, which is mounted at the point 436 and has a pawl seat 434a which engages the pawl piece 42oc on the lever 42o, which locked position is shown in Figure 13. The plate 434 has a curve part 434b, which is arranged in such a way that the piston 4l2a of the pushbutton for switching off (cf. and broken lines in FIG. 14) to bring the plate 434 into a position in which the Lever 42o is released from its locked position, whereupon the spring 432 the pawl 426 / through which the feed is interrupted in their locking position shown in FIG brings. Therefore, the machine can be

pressing the 4Io push button and by pressing it down the push button 412. can be switched off.

In addition to a manual switch-off, indicated by the arrow O. is indicated, the machine can be determined by the count of the Counter 438, which is of conventional construction and includes dials 438a that point to the desired Number of copies (for illustration 35) can be set. After reaching the set number (compare 14) the counter 438 turns the machine off. The input variable for counter 438 becomes normally derived from each machine cycle made by one revolution of the main shaft 98 through the arrangement of a Actuating arm 322a (compare Figures 12 and 14) for the Counter is given on the swash plate 322, which operates the actuator arm 438b of the counter, which is normally is biased to its forward position by spring 438c. Each time the operating lever 438b is pushed forward against the bias of its spring (to the left in Fig. 15), will the displayed remainder is reduced by one unit. If the Counter reaches the count 0, its shaft 438 is rotated, to adjust the arm of the 438a counterclockwise when looking at the front of the machine (away from plate 44 in Figures 13 and 14). Adjacent to the arm 438 at the counter output, a lever 44o for triggering the counter is arranged, which is mounted at the point 436 and the position shown in Fig. 13 is biased by a spring 442. When the lever 44o by the arm 438e of the Counter 438 is depressed, as indicated by the arrow 0_ in Fig. 14, the plate 434 is in its notching Direction pivoted about the axis 436 / to release the pawl at 434a and 42oc, so that the lever 42o is rotated in one direction to release the locking force on the pawl piece 426, causing the paper feed is switched off.

Ί09821 / 1220

Means are provided to operate the counter to be switched off by blocking the operating arm 322a of the meter by the blocking arm 426b, which is formed in one piece with the locking piece 426 and is in the position blocking the counter is when the engine is turned off, as shown in FIG. Depending on the rotation of the pawl piece 426 counterclockwise when the machine is turned on, the moves blocking arm 426b in a releasing position, where '! the actuator arm 322a of the counter can contact the actuator 438b of the counter to initiate the counting process initiate.

The third shutdown procedure, '-. Which by the Directional arrow 0-, indicated, is through the arrangement a sensor 444 for detecting the height of the paper stack at the storage point 428 allows. The double lever 444 has a pick-up member 444a over the block 92b and an actuating arm 444b, which carries a pressure plate 444c, which engages the adjustable tapping screw 434c on the plate 434. When the block 92b approaches the limit of the guide 44b, that is, when the stack of paper is used up, as from the 14 and 13 can be seen, the lever 444 is pivoted about the axis 428, about the pressure plate 444c in the opposite To move clockwise, causing the plate to pivot about the one actuated by the push button Release lever 42o and stop the paper feed.

- patent claims -

ι odaai V-t 220

Claims (1)

Claims rl Λ duplicating machine with a feed table for feeding paper from a paper stack, with adjustable left and right side guides which are movable relative to one another according to the width of the stack, characterized in that left and right corner separators (66, 68) together with and relative to the left or right side guides (56, 58) are movably arranged that the corner separating devices are movable together with and depending on the setting of the left and right side guides, and that an actuating device is provided for simultaneous adjustment of the corner separating devices relative to the side guides when the latter are in an adjusted position to allow independent adjustment of the left and right corner dividers with different adjustments of the left and right side guides. 2. Duplication device according to claim 1, characterized characterized in that a single manual control device is provided for the actuating device. 3. Duplication machine according to claim 1, characterized in that that a stabilizing device coordinating between the left and right corner separators is switched on. 4. duplicating machine according to claim 3, characterized in that the stabilizing device includes a floating stabilizing bar that slides engages the left and right corner divider and is arranged so that the separators are under the control the left and right side guides are movable toward and away from each other. 5. duplicating machine according to claim 1, characterized in that a support wall extends across 100821/1220 ' -37- the machine extends and in front of the feed table in the direction of the Feed is arranged, and that the left and right corner dividers are loosely arranged on this wall and can rest against the left and right front edges of the stack. 6. duplicating machine according to claim 1, d a you rc h ge k e η η ζ e i c h η e t,. that left and right support plates are movable with the left and right side guides, and that left and right operating levers are arranged on the left and right support plates that correspond to the left and right, respectively Corner dividers are connected. 7. duplicating machine according to claim 6, dadurchgeken η show that the actuator is a common actuator holds, through which both the left as the right operating lever can also be adjusted independently of the side guides, and that the operating member is stationary remains when the side guides are adjusted and the levers move relative to the actuator during these adjustments move. · 8. duplicating machine according to claim 1, characterized g e k e η η ζ e i c h η e t that the actuating device so is configured to move the left and right corner dividers in opposite directions relative to each other and symmetrically relative to the feed table side guides. 9. duplicating machine according to claim!, Characterized by a lifting mechanism for the step-shaped Lifting the feed table to bring the top sheet of the paper stack into the infeed level, which lifting mechanism a climbing wheel, a first operating pawl which normally engages the climbing wheel, and is operated by the main drive a second actuating pawl is used to connect the climbing wheel, which can be guided into engagement with the climbing wheel and normally is arranged in a retracted position relative to it, a manually operable device to activate the second actuation ■■■ 1O082-1 / 12.2O.- ♦ to bring the pawl into engagement with the climbing wheel, and to bring the climbing wheel to continue shifting, one normally engaging the climbing wheel Holding pawl and a release device to both the first actuating pawl and the holding pawl of lift off the climbing wheel so that the feed table can be lowered. 10. Duplicating machine according to claim 9, g e k e η η ζ e i c h net by a manually operable device for actuation the release device for the latches. 11. Duplicating machine according to claim 10, characterized characterized in that the release device for the pawls has an articulated release lever which is operatively connected to the retaining pawl, an actuating device with a finger piece for pivoting the release lever, in order to lift the retaining pawl from the climbing wheel, as well as a device on the release lever in order to remove the first actuating pawl from the lever in response to the pivoting of the release lever take off. . 12. Duplicating machine according to claim 9, characterized in that that the manually operable device associated with the second actuating pawl has means for engaging the second actuating pawl to be arranged movably with the climbing wheel, and that the actuating device includes a finger piece to engage the second actuating pawl and actuate it. Facility Yes. draws that an automatic paint supply unit is envisaged which has a movable frame, a paint container ^^ on the frame which is provided with a cover, a switching mechanism which is operatively connected to the frame to carry out a stepwise relative movement of the container and the cover to squeeze out urrr ^ äi.e color from the container in discrete quantities, as well as e ^ n actuation ^^^^^ mechanism with a memory device that works with 1θΊΠΗΓΐ7Τΐ2 £ Γ -39- '■ -' ■ ■■. ^ ^ ■■ · ■ ^:. '■■ ■■. . The main shaft of the machine can be actuated in order to exert a switching stroke on the local switching mechanism, so that the paint can be dispensed. 14. Automatic ink dispensing device according to claim 13 , characterized in that the storage means includes a one-way clutch which is a driving guided member, a driven guided member and clutch rollers arranged therebetween, and in that the actuating mechanism has an input device, which is actuated in dependence on each revolution of the main shaft and is connected to the driving member to exert a stepwise rotational movement thereon, like an output device connected to the driven member and the indexing mechanism to output the switching stroke after the One-way clutch storage of a predetermined number of incremental rotary movements has taken place. 15. Automatic ink feed device according to claim 14, characterized in that the storage device includes a backlash mechanism that works with the one-way clutch is connected. 16. Automatic color application device according to ^ ünspruch 15, because - characterized by, d ekß der Leergangme- ( mechanism has a fixed guided retaining member which the driven member and the clutch rollers together with the holding member and surrounds the driven member to preclude rotation in a direction which is the direction of the stepwise Rotational movement is directed in the opposite direction. 17. Automatic ink feeding device according to claim 13, Nd a by characterized in that the operating mechanism has an actuating cam on the main shaft, a pick-up member engaging the actuating cam, one in \ Ab ■■ 10982 1 /.1220 - facility for setting the input facility to initially the tapping member relative to the cam exactly to the amount of Set movement, which of the storage device from the Cam and the exhaust member during each revolution of the main shaft is fed. 18. Automatic Farbzuführungsvörr ^ htung according to claim 13, characterized ge η evt that a manual actuator and a device is provided, the one Contains lost motion clutch to shift strokes on the ^ switching mechanism depending on the actuation of the manual operating device exercise which lost motion clutch is used / ^ ä ^ manual Actuating device of the switching mechanism during the ..Be - - * κ 19. A duplicating machine according to claim 1 or 9, comprising a main shaft and a paper feed mechanism, characterized by an actuating device which can be actuated by the main shaft in order to initiate the paper feed, by a control device for selectively engaging and disengaging the actuating device of the feed mechanism from the main shaft, which control device contains a pawl that normally controls the actuation device in a disengaged Position of the main shaft by a first manual control device operatively connected to the pawl lift them off the actuating device, whereby the actuating device is coupled to the main shaft by a second manual control device that works with the pawl is connected to bring this with the actuator into engagement, whereby the actuator from the main shaft is disengaged, and by a counter and a device responsive to the operation of the counter that works with the pawl is connected to engage the actuator and disengage it from the main shaft. 21/12 20. Duplicating machine according to claim 19, characterized by a riser table for the paper feed and a to the movement of the riser in a predetermined position responsive device to the pawl with the actuating device to engage and this from the main shaft disengage. 21. Duplicating machine according to claim 19, characterized characterized that the mechanism for the paper ■ feed comprises a first and a second set of feed rollers that the main drive has a main shaft on which is arranged a first cam, that a first connecting device with a first tap member and a first one-way clutch is arranged to apply a first intermittent feeding movement to the first set of feeding rollers, that a second cam on the main shaft and a second Connecting device is provided which has a second tap member and includes a second one-way clutch to apply a second intermittent feeding motion to the second set of Feed rollers are delayed from the first movement so that the paper is advanced by the first set of feed rollers to the second set of feed rollers this is taken and continued. 22. Duplicating machine according to claim 21, characterized characterized in that the two cams are symmetrical to the machine and on opposite sides of the feed mechanism are arranged. 23. Duplicating machine according to claim 21, characterized characterized in that the second set of feed rollers includes a drive roller and a co-operating pressure roller movable relative thereto, and that one Device provided with a third cam on the main shaft is to the pressure roller in a cooperating with the drive roller position as a function of time on the drive of the 109821/1220 - 4.2 bring both sets of feed rollers. 24. Vavultipligungsmaschine according to claim 21 with a riser table for paper feed, characterized in that a cam is provided on the main shaft that a connecting device with a tap through the Cam is actuatable and operatively connected to the set of feed rollers to effect feed movement, and that another connecting device is operative with the Pick-up element for actuating the lifting mechanism of the climbing table connected is. 25. Duplicating machine according to claim 24, characterized characterized in that the cam has a guide track with opposing boundary walls, so that the tapping member cannot disengage from the cam due to the weight of the paper on the riser table. 26. Paper machine according to claim 1, 9, -43- * 19 or 21, characterized by a printing mechanism with a movable Pressure roller, by a feed table and a lifting mechanism for gradually lifting the table, by a Feed mechanism for feeding paper from the table to the printing mechanism, with first and second sets of feed rollers, by a combined drive for the mechanisms, which includes a main shaft, by a first cam on the main shaft, by a first connecting device with a first Pick-up element which can be actuated by the first cam and is operatively connected to the second set of feed rollers for moving them by auxiliary linkage means, which is operatively connected to the first tap member to the Operate lifting mechanism by a second cam the main shaft, through a second connecting device. a second pick-up member which can be actuated by the second cam and is operatively connected to the first set of feed rollers to set them in motion by a third 109821/1220 Cams on the main shaft and a third linkage which includes a third pick-up member passed through the third Cam is controlled and operatively connected to the pressure roller is to adjust this in and out of the working position of the printing mechanism, the unitary drive and the relevant cams and pick-up members enable a coordinated and timed actuation of the pressure mechanism, the lifting mechanism and the feed mechanism. 27. Duplicating machine according to claim 26, characterized characterized in that the second set of feed rollers has a drive roller and a cooperating therewith, relative to this movable pressure roller contains that a fourth Cam is provided on the main shaft, and that a fourth connecting device is provided with a fourth tap member which is actuatable by the fourth cam, * around the pressure roller into a position cooperating with the drive roller in a timed and coordinated relationship to the actuation of the two sets of feed rollers. 28. Duplicating machine according to claim 27, g e k e η η records by a paper stop in operative relation to the second set of feed rollers which normally blocks paper feed thereto and by one of the fourth cam-controlled device to the stop as a function of time of the movement of the pressure roller in the with the Remove drive roller cooperating layer. 29. Duplicating machine according to claim 26, characterized by a hand crank and a device for detachable connection of the hand crank with the main shaft. 30. Duplicating machine according to claim 29, characterized by an electric motor for driving the main shaft, and through a one-way clutch connecting the motor to the main shaft, which clutch disconnects the motor from the main shaft 109821/1220 - 44 disconnects when it is turned by the hand crank. 31. Duplicating machine or printing machine with a printing mechanism; a feed table with a lifting mechanism and with a mechanism for the paper feed, marked net through a unified drive for the mechanisms, which has a main shaft, a hand crank for the main shaft, a device for coupling the hand crank with the main shaft, and a motor drive for the main shaft, which drive contains a single support device, a device for the releasable attachment of the support device to side parts of the machine, one arranged on the support device Electric motor, as well as a connecting device which is arranged on the support device and which is brought into engagement with the drive shaft when the support device is attached to the side parts of the Machine is arranged, wherein the unit of the support device, the motor and the connecting device on the machine can be attached and removed therefrom, so that the machine can be used with a motor drive by arranging the support means on its housing. 0 9 8 2 1/12 2 0 IK Blank page