DE7039233U - ADJUSTABLE FEEDING DEVICE FOR LONG STRETCHED STRIPS OF TAPE MATERIAL - Google Patents

Description

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DR.MD1LER-BOR £ ui ^ L-PHYS / tfR. MANlTZ 'D ^- IPL-CHSiADR ₁ DEUF ₁ EL DIPL-ING. FINSTERWALD DIPL-ING. GRÄMK0W

PATENT LAWYERS

1%. OKI W)

We / Sv - P 2080

6300 olson memorial highway, ilinneapolis,
Kinnesota

Incremental tape feeder

3) the invention at ^ dxxx; an incremental

A 3andzuiznrongs device of the type according to the invention is scanned from the German godfather & sg P 20 i $ 96.8. This invention "relates to a variable Zufuiirungseinrichtung a sand from strip material in which _the% of Issge SuSSsrunss-Setätigungsarms is adjustable xnn. ₉ the Xänge the Inkresente to change, which is intermittently fed through the liaschine
will. Since this actuation must be arranged in the interior of the machine and since the setting device is based on the ana
Even if it is "bst" attached, it is not easily accessible for adjustment by the operating personnel, although the device has proven to be effective and satisfactory from another perspective. It is of course highly desirable to have an easily accessible adjustment facility away from the feed area.
To have actuating device, and the invention is particularly directed to provide this accessibility. Ss is particularly important where the feeder device is located within the

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light-tight housing of a photographic printer or copier is arranged, wherein the photographic paper is damaged usually as often as the case is opened.

Accordingly, a primary object of the invention is to provide a variable To create feeding device which is an easily accessible Has control element which removes the iron of the actuator is arranged.

Another and more specific object of the invention is to an easily adjustable intermittent drive for a feeding device which gradually accelerates the paper feed and also provide a gradual delay can.

Another object of the invention is to provide a "variable feeder." to provide for operation at a high speed, which has a braking device which during the delay is operated to prevent overrun of the feed rollers.

The invention is explained below, for example, with reference to the drawing Tjescnritten; in this shows:

Üg. i a schematic diagram of a feeding device for a photographic printing or copying device, which sets the adjusting device according to the invention to

Sig. 2 is a schematic perspective view of the invention Yorrichtrung,

^ ig- 3 one side view of a stage iia operating cycle of the inventive device,

2ig- 4 a schematic diagram of another. Stage Is operating zjYLxLS of the Yorrichtung ₃ according to the invention and

3ig. 5 is a side view showing the setting of the inventive Caution represents.

In the illustrated embodiment of the invention, it is a rope a pnoliographic. iirack- or 2bpierein2? iclituns versus chau— light.

As shown in Fig. 1, a drive roller 11 is provided in order to pull a tape of strip material 12 from the supply reel 10. In the illustrated 3-shape, the tape forms photographic copy paper, although other materials can be used. A loop 12a is provided to isolate the spool 10 from vibrations which result from the periodic operation of the Suführungsseenanismus - rollers 13 and 14 lead the ribbon in the printing and copying area A, respectively, while rollers 16 and 17 supply a tension the material 12 by the printing or copying | Pull area A through. The rollers 16 and 17 are somewhat larger than the rollers 13 and 14, so that the tape is kept under tension in the printing or copying area. A winding reel 18 is provided for the material 12, which runs over a pulley 19. A conventional registration device 15 supplies an identification mark for each individual material section which runs through the 2ruc3 = ^ _s or copying area. A chain 20 is provided to drive the gears 22 and 24 and thereby to drive the vales 17 and 14, respectively. The rollers 13 "u ^ -ä 16 are driven by the drives a and b, which are in engagement with the drives c and d, which are assigned to the rollers 14 and 1? However, there are clutches in the work machine which are assigned to the gears 22 and 24, which allow the chain _{3 to} drive the material 12 only in a forward direction, with a slip occurring when the Eeder 21 makes a backward movement of the chain at the close of the gate pick-up movement during each cycle

Tn η drive wheel 26 is provided ~ an.ä. connected to a (not shown) direction, which the drive wheel 26 for a complete sound rotation for ^ ae xlasciiinensrarbeit;

drives. Such Sinriciröung is described ^ ^- "of the above 1 atentanmelrhrpg saoer,

The take-up motion for ^ Eden duty cycle is controlled by a guide wheel as the gear 23 ore concentrated ₅ rd_t which an intermediate portion of the Eette 20 is in Singriff. A suitable device for generating a lateral winding movement of the belt and of the winding wheel 28 is provided, for example, in the form of the rotating disk part 26 on which the winding wheel 28 is attached. The Sad 26 actually acts as a safety arm to produce the desired lateral movement of the winding wheel 28 and includes the portion of the catenary which engages the 2ad 28 to maintain the driving engagement therewith. The crank arm or disc behaves in changed, da3 passes the chain to the engaging member and the take-up and is involved in the mechanism. The surface of the hair 26 may be coated with vibration dampening and absorbing materials ₃ known as Ifylon and Teflon, which are readily available on the market.

In Fig. 1 the device is shown in its initial starting position. A brake arm 30 is shown on a suitable, schematically shown bracket at an iest pivot point 32. A brake band 36 is attached to the brake arm at 38 and extends over a brake drum 40 for a suitable stationary attachment. In the 3? Ig. 1 shows the brake in the engaged position, in which it creates friction between the brake drum 40 and the brake band 36. The drive wheel 26 acts as a cam and steals in engagement with the pole wheel 34 a "j £ the brake arm 30. A cam hump is provided, which begins with the inclined rising section 42 and ends with the falling section 44.

7039233i5.fi.72

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The device for changing the amount of A-winding which; by the lateral movement of the take-up wheel 2S during
its eccentric rotation about the axis of the drive wheel 26 is generated, can easily be changed by changing the
Position of the section of the chain 20 can be reached, which is connected to the winding wheel 28 and the axis of rotation ds Sades 26
is engaged. In the particular embodiment of the invention shown, this setting is achieved
by an anchor 5O ₅ which at that end of the chain

20 is arranged, which is attached to the "spring 21 i

End opposite. As a suitable device for movement ύ

of the armature 50 is, for example, the adjusting screw 46 ¹ ^

provided, which can be actuated by the crank 48. {

A position indicator scale ^ Λ "ό is provided, which so

can be calibrated so that the length of the photographed J

Material can be read, which is driven by the chain 1

ben is when the armature 50 is in the indicated position I.

is. An indicator arrow ^ a. is attached to the anchor 50, I.

about the position of the anchor in any particular |

To specify the setting of the setting device. ; |

As shown in the Pig. 2, a shield 52 can be provided in order to prevent lateral vibration of the chain 20 by inward | To prevent the end of the chain between the drive wheel 26 and the shield I. The shield can be pressed against the J chain by a spring so that substantial vibration dampening is achieved without exerting increased frictional resistance on the device. The shield can with 1 an elastic vibration-damping material of low tire j be coated environment, as in the wheel 26 according to the representation \ position in the Pig. 2 is the pail. I.

- ο -

± 2. the S ¹ Ig. 3 shows the drive wheel 26 during the triggering of a command cycle. The representation is chosen so that the 2ad is slightly advanced in its rotation, since the guide roller 28 with the Eette 20 is slightly in. Singriff stands and that the Sad 34 snf C-S2? I slope is 42. ¥ hen the 28 is 3? Ührungsr.ad with the Sette 20 ir. Singriff, the chain is pulled so that the Zalmräder 22 and 2Ά- si cn rotate against ß.en clockwise direction so that they characterized the photographic! Material < ~ zx? cL · 0, ^ 2. Visible area iiihreii, "and z ^ - ^ r by rotating the rollers 13» "^ ₅ 116 and i7-2 at the same time from the brake band 3S detached from the 3renstromniel 40- It can be seen that the drive a & r set 20 the Spring 21 expands-

Further illustration is provided in the -? Ig. 4 and 5 show that ₅ that the drive wheel 26 produces the L-Jeiterdrehen an issuer greater 'i / grounding inclination of Slette 20 until the in Pig. 4 is reached the point of maximum deflection. It is understandable that when the Eades 28 initially singles into the chain, the deflection begins with a relatively slow hatch and that the rate of deflection increases as a result of the harmonious movement of the pulley wheel.

From the point of deflection picked out in FIG. 4, the chain deflection meder from and the pedal 21 supplies the force required to bring the ICette 20 back into its starting position. As already explained above, the gears 22 and 24 are equipped with clutches so that no drive is _{transmitted to the Valzen 13 5} Ί4-, 16 and I7 during the return portion of the cycle. Ss can be seen from the i? Ig .. 4. » that the sad 34 on the breasann 30 runs down the slope 44 before the maximum acceleration is exerted on the photographic material. Thus the brake is clearly used,

before the return section of the cycle "begins, so that a Overflow of the phot ο graphi see Kairerials is prevented.

You Fig. 5 illustrates the adjustment of the drive length the variable pension scheme. In the 5 "ig.5 the screw 46 is being used by the operator of the handle or crank 48 is brought into one position in which the Easisalauslenlong the chain 20 by, the ^ guide wheel 28 a minimum deflection in comparison other possible settings. This is completely represented by the dashed L-line section, where B shows the chain not deflected in its new position and C shows the deflection of the chain with the anchor - point 50 'in the position shown in the other figures It is evident that if the anchor point 50 is moved by the operator from the old Position 50 '> which is shown in four Sig. 5, in the new position would cause some advancement of the chain and sprocket, thus wasting one a small section of photographic material. However, once the advance is done and the When the machine is in operation, the slight advancement of the chain and the increased tension on the peder 21 have in the starting position no effect on the functioning of the device. It is possible to set the facility while it is in operation to achieve the desired length.

The method of operation of the device according to the invention will be described below. In operation, the advancement device operates at a high speed, sometimes actually more than 10 times per minute. In each operating cycle, the drive wheel 26 starts from a starting position as shown in FIG. ^{5 1 Xg.} 1 or 3 is shown and advances clockwise one full turn. If the operating

A3

cycle is started, the brake band 36 is from the brake drum 40 solved, namely as a result of the pole straight 34 on the brake arm 30, which the inclination 42 on the liockenbuckel runs up. The size of the XTockenbuckels can be suitable must be set so that the brake xtflow in a predetermined optimal section of the operating cycle | intervenes.

In the Pig ·. 2 shows the operating cycle in its initial stages, in which the acceleration of the photograph- I see material just starting while the braking device is being released. In the pig. 4 is the facility at their maximum displacement when a full frame of photographic material is advanced. f The brake engages at or slightly before the point of maximum speed, so that when the advance section of the cycle ends, there is no overflow of the photographic material in the feed rollers. This provides a proper framing and g

Positioning of the photographic material. The applied = * Braking strength can of course be adjusted in many ways to achieve the desired deceleration and resistance. characteristic on the rollers 13 and 14 to achieve.

The variable adjustment feature of the invention is in the Pig. 5, in which an external crank or handle device 48 is easily set by the operating personnel | can be to reset the anchor point 50 of the chain ^! - and thus the length of the length of the individual frames of photographic tape 12 to be set. It is understood that the spell along which the anchor point 50 is moved as a result of the operation of the screw and of the handle may have a Jäsigung which is a tangent approximate more closely to the drive wheel 2S ₅ so that a relatively low advance of the Eette 20 occurs when the establishment

is set for a different feed length. The armature 50 can also be moved on a curve, so that no undesired back door occurs. When the drive wheel 26 is moved back and forth for adjustment,
there is also no undesirable advance.

I The invention has numerous advantages. As a result of the circular movement of the guide wheel 28 on the drive wheel 25, the chain and hence the photographic material are driven in harmonic motion as a puncture of time so that the photographic material is gradually accelerated. This gradual acceleration of the photographic material ensures that no sudden stress is applied to the material and, as a result, there is little likelihood of the material being jammed or torn in the device.

As can be seen, at the end of a cycle of operation, the guide wheel 28 completely disengages from the chain, see above
that in this way a possibility is created that
the accuracy of the length is independent of a requirement, i.e. that the drive wheel 26 stops in exactly the same position when the cycle is completed, since the machine is intended for safe operation or for operation
it is most advantageous that the machine is independent of slight variations in the drive motor in determining the feed length.

-Each 3-tib length of the prto-Gographischen iKa-terials -dxircii the position of the anchor point 50 of the Eette 20 is determined, "as it is indicated on hex scale $ ib and the drive wheel delivers only 'oil movement power for each cycle- Thus; Feed length adjustments can be achieved by the mechanical device as shown or by some convertible device without the need to manufacture a complicated gear or mechanical mechanism

in the rotation and in the drive device is required. Since the feed length setting is a setting the length of the crank arm, but requires a "relocation of the anchor point of the chain, the adjustment handle or crank device can be brought into a convenient position for operation. The setting control can be used using placed in any desired position by any mechanical means well known so that the connection to the screw 4-6 is made by angles or changes in the height of the control handle can be. Settings can be made while the unit is in operation. Of course, is closed observe that it is possible to adjust the feed length of the tape material such as the photographic printing or copier paper can be adjusted to any desired size in extremely small increments.

As a result of smooth and soft acceleration and Deceleration, which is made possible by the harmonious movement of the drive wheel, is relatively easier Pressure on the drive rollers allows what is beneficial because the light pressure prevents damage to the paper surface. Another feature is that when the drive is engaged at the beginning of a stroke no load is placed on the drive mechanism until the take-up wheel makes contact with the chain comes so that in this way the initial load on the drive mechanism is reduced. It turned out that then j if the Aufwickelraä touches the chain, only a relatively slight jolt or shock is generated. For these reasons, it has been found that a erfindungsgejüigte Execution is very durable and an extremely long life compared to known drive devices

The invention; creates an easily adjustable banana feeder. This xia includes in the "special" described form a set "and gear drive ^ sit a ΙοχΣ- v7ic2-celkurOelara ₅ '. -Rich sit a Zvri.schenabschnitt the Zette is engaged in order to generate an intermittent intrieosvdrlcuns, which of at a point distant from the x-urbelann is easily adjustable, while the description is given to the general bisector s1? e ^ esd € s. S ## feen & 8gpesfe 53a4 aer Sasitaiarmachse v-changed 7, -ri.rd, in that by means of a remote-controlled device one end of the engaged chain segment such as the anchored end of the chain is moved, whereby the effective absorption stroke on the chain can be changed .

- patent claims -

Claims (1)

DFL MÜLLER-BORE DJPL.-PHYS. DR. MANlTZ D.IPL.-CHEM. DR. DEUFEL DiPU-ING. FINSTERWALD DiPL-ING. GRÄMKOW PATENT LAWYERS P 20 15 596.5 ^6l * - ·· Pako Oorpcrzticr. Il / ^ ia-P 2030 S e h u tz a r. 3 id r ü c ic e Sinst; ellbare Zufülxrrurig ~ / orri entranged for elongated strips of tape material rekex-nseichnet ciurch Streif en-Sine ^ riff £> jalzen (13j 1 ^ ₅ 1-J ₅ 1 /) j which the Streixers. (12) int he with tier enä aurcii an ^ arceics- "area to fülireiL, atircn an elongated, flexible actuating element (20), which is connected to the drive with the strip engagement rollers, dxircli an additional tension and feedback song (21 ), which is verbimdeii with a sin of the flexible Betätigimgsorganes _(20)} diorch a Yeraskeriing (50) of the other end of the flexible member (20) through a power to a rotation driving part (26) which is rotatably arranged on an axis, which extends cruer zxL dea flexible organ (20), and by a catcher (28) which is arranged on the drive part (2,5 ^) for engagement with the flexible organ (20) and is attached at a radial distance from the axis, wherein the> Terank ^ ieriing (50) is slidably attached in such a way that the effective length of the stroke of the transducer (28) can be changed. Door direction according to claim 1, characterized net that the distance between the axis of the rotatable Drive part (26) and the portion of the flexible Orcanes (20) can be changed, which with the transducer is in singriff at the beginning of the stroke. Dr. MCillef-Bor * Dr. Manitz Dr. Deufel Dipl.-Ing. Finsterwald Dipl.-Ing. Grämkow Braunschweig, Am BOrgerpark 8 8 Munich 22. Robert-Koch-Strasse 1 7 Stuttgart-Bad Cannstatt. Marktstrasse 3 Telephone (0531) 73 * 87 TeMfoe (i | 1tL293SiS, Telex 5-22050 mbpat Telephone (0711) 567261 Bank: Zentralkais · Bayari ^ WsUiA ^ hdhjient Xla .- {ir.9a ^ Postal check: Munich 95495 ί. Device according to claim 1, characterized in that the rotatable drive part forms a rotatable drive wheel (26) and that the jlwl nehser (28) i ^ jo. a distance from the axis of rotation of the bath is attached. 4. Apparatus according to claim 1, characterized in that g e k e η ii - draws that a one-way drive between the Streif en-Singriffvialzen (14, 17) i ^ -d the fleid-ble Organ (20) is switched. 5. Device according to claim 1, characterized in that a friction brake (3 & i " ⁴ K)" is provided in order to oppose a resistance to the movement of the material strip (12) during at least one part in each cycle. 6. Apparatus according to claim 5 _3, characterized in that the friction brake comprises a rotatable braking element (40) which is assigned to at least one of the strip engagement rollers (14), and a brake yoke (J6) on v / ei st, which the rotatable braking element ( 40) is assigned. 7. Apparatus according to claim 6, characterized in that the brake bracket (36) during part of the pick-up cycle against the rotatable Zremselement (40) can be pressed. 8. Apparatus according to claim 7 »characterized in that the rotatable drive part (26) a squat portion (42) on which the bringing into contact of the brake yoke (56) ait the rotatable Brake element (40) controls. 9. Vorric? '- ^J ; ung according to claim 1, characterized in that a surface of the rotatable drive part (26) is assigned to the flexible member (20) to move the lateral movement. _; ; of the riexible element ^{zubeE3? enzet1} · 703923315.6.72 ο device according to claim 9 _? thereby geke η η - | draws that the surface with an Ilaterial I ι is coated, the lateral vibrations of the flexible | Organ (20) attenuates. 11. The device according to claim 1, characterized in that a shield (52) with a surface parallel to the rotatable drive part (26) in such a way; is attached that the flexible Ox-gan (20) in a j Space is enclosed, which is between the shield and the rotatable drive part is formed. Device according to Claim 11, characterized in that the shield (52) is made of an Ilmaterial is coated that dampens the lateral vibrations of the flexible actuator. 13c device according to claim 2, characterized in that that the rotatable drive part (26) is in a permanently fixed position in a ".!. movable Bracket is attached and that the movable bracket is actuatable to the flexible member transversely to the axis of the to move the rotatable drive part back and forth. It-. Device according to claim 2, characterized in that the anchorage (50) for the flezicLble element in a permanently fixed position is fixed in a movable holder and that the movable Eaging is actuatable to the rotatable drive steeply transversely in relation to the fleirible Organ ~ or- and back-up »