DE2021293C - Electric drive device for a camera - Google Patents

Description

3. Drive device after one of the previous 20 is disturbed.

going claims, characterized. Is is therefore the task of I rtindimg. the Maldives

that a constant interface for film transport avoids disadvantages and difficulties and

valle determining device is provided. in particular to train the Einriihiung so dall

4 Drive device is looking for one of the previous eligibility and successive initiations Claims, characterized by 25 took both from I land and by a Ferndall a deceleration control with a uniform design for the locking mechanism Auxiliary circuit is provided. with zwvM motors and a control element easy

5 Drive device according to one of the previously and precisely drawn v.erdcn can.

going claims, characterized. An electric drive device lüi one

dal! a unit au remote control provided 30 camera with at least two drive devices cii

is. for film transport and closure

6 Drive device according to claim 5, is characterized according to the invention by a control characterized in that in the unit for the member and a device / to proof of the Ue fine control a display device before the end of the film transport, one viewing is. 35 drive facility and the verification facility the

7. Drive device according to one of the previous control member back and forth v.gen, and where the

going claims, characterized. Control element controls the circuits of the two drive units

that the device closes and opens as separate detachable directions to the film transport

Unit is formed. and to control the shutter actuation.

S. Electric drive device according to 4 ° With the aid of the statement shown in the drawing I. characterized by a control member, leitungsbcispk-le is intended to explain the invention in more detail a verification device to determine the. It shows

Completion of the film transport, by a switch- Fig. 1 a schematic representation of a first switching device for switching the Einrich- embodiment of the invention
processing of a setting for successive 45 FIG.
individual recordings or vice versa, with the one Fig. 3 and 4 detailed representations of a gate two electric drive devices butt connection for the embodiment in and the detection device a back and forth Fig. 2,

cause movement of the control member, and where- 5 ° F i g. 5 shows a circuit diagram for a further embodiment of the control element circuits of the two electrical examples of the invention, and
fresh drive equipment closes and oil- F i g. 6 a further circuit diagram of an exemplary network for the film transport and the shutter with remote control.

to control the process. The device shown in Fig. 1 cnthäll

55 a DC motor M ₁ for film transport

the output torque of which is transmitted to a roller 6 via a reduction gear 2, 3, 4 and 5

The invention relates to an electric drive. The gear 3 is on the gear 4 and there

Device for a camera with a sliding gear 5 attached to the roller 6. The rotatior

Finally, the at least two drive devices 60 of the roller 6 are connected to one another via a belt 7

for the film transport and the shutter actuation roll 8 transferred and by a gear 9 weitei

having. . reduced, which is attached to the roller 8, after which

In the case of a known electrical drive unit, another transmission to a connecting part

A camera is usually used to transport the film. At the conn

Structural use in which (A) a connector 10 is disposed a pin 10 'which is connected to the connector 65

member for locking with another connection part in the camera in engagement ge

binding point can be brought into the camera at an angle.

Jrchl, which is used for film transport and tensioning along the belt 7, is a guide roller Ii

provided on a shaft II on the housing. In the following, the operation of the in F i g. I.

the device is rotatably mounted, and a device shown empty will be explained in more detail,

roller 13 at a free end of a lever Fig. 1 shows the device during film transport

14 on a shaft II carried by the housing in the case of a single receptacle. In this case

is stored, and a pivotable by voltage 5, the motor M ₁ runs because the circuit with the

Roller 17, which is attached to a free end 19 ″ of a V-för battery E, the switch S _r dun motor M _x and the

Migen lever 19 is mounted, which is rotatably closed to switch S ₁ . Under this condition

a stationary shaft 18 is attached. The lever 14 tongue is the film transported until the film transport

and the lever 19 are terminated by a spring 16 or port and the connecting part 10 at one

20 strikes in the direction of the rollers 13 and 17 against the stop on the camera. Then it rises

Belt 7 pretensioned. Tension along part 7 ″ of belt 7 on and

In the device there is also a synchronous sir the lever 19 on the roller 7 is provided against the host gate AZ ₂ for the release of the lock, the spring 20 being pulled down, as can be seen from its output torque via a worm wheel 22 in the figure. In this state, the is transmitted to a gear 23. At the front 15 loosening of part 7b of the belt? By seeing the wheel 23, a pin 25 in the vicinity of the spring 16 is compensated by the roller 13 in order to adjust the 1 f ^ fo "" c · K..f "= _t ;" t ...:; i, - "", I ":" e ": f, ·» * ",. _t , i "" _D r. "i, D; <> _m <. _n τ ri ^ _r! > n 711 tiinrtprn rlnß he is from roles 6 :. ¹ Ue-. K.uN 23 is provided. The draw pin 27 and 8 will be irme / i-gen. The tension of the I eik ι Ift ι * '' hu Κ.-In I'tule 28 (1 of an Ai'slosehebeis 28 hemuli much less 'than' that of the I hurry: 2 (1 t- ''. 11 Which be on iler stationary shaft 29 ihehbai 20.

J : ■.:. ■ H is; The other I nde 28 /> of the llctiel 28 is therefore the pawl 19 '. (L-Vloimifene

, ι-, Hewegungsweg the pin 25 and is clinch the lever 19 except finger with the abotiifte; · part

Engine \ t. actuated. Furthermore, a return spring 30 36 ii of the control member 36. so that the control member ti ei

fm Jen IL-IvI 28. a stop pin 31 for the lever is gcge.xn and slides to the left \ eischie

28 and an intermediate lever 32 for tensioning cine> 25 hay, as indicated in the Figiu, takes place

Control member «» 36 provided, which at a local. Displacement due to the tensioned Feiler 34. se dall

feien Weih: 33 is pivoted. At the end of 32 ″ the pin 42 is moved away _{from the switch V 1.}

il I lebeis 32 is in the movement path of the pin 25 to open the switch S ₁ and the switch S. / u

■ πι i'uluu Furthermore, a tension spring 34 for the Ζλμ- close. This will end the Filnitiansport

■ ·. iKiihfbel 32 and a stop pin 35 for the lever 30 and tier engine Vi ₁ switched off. During this before

32 provided. gangs the pin 41 moves to the left from one

Lin lever 38 prevents a large rotational position in which the movement of the pin. 26 limit / i

angle of the wheel 23, which is rotatable at the local. to a position in which the pin 26 move

fixed shaft 37 is mounted. Fin F. Ende 38 «of the lever can, since the HeK-I 38 of the movement of the pin 41

38 is arranged in the path of movement of the pin 26. So that the wheel can go d ^r of the 35 follows. If the

Lever 38 is tensioned by a spring 39. The motor Λ /, is switched off, the S.anming des

Control member 36 is reduced to the housing by a belt 7 to the connecting part for

Sehlit /verbindurtg with a pin 39 and a film transport of one in the radial direction

Slot 36 / »slidably guided. released compressed state so that the

A pin 40 and a pin 41 are on the control 40 locking release can take place. Furthermore, the

member 36 fixed so that engagement with the end lever 19 is returned to a state in which a

32i »of the lever 32 or the end 38 /> of the lever engages the control member 36 by the action

38 can be done. the spring 20 can be done.

A pin 42 is arranged on the control member 36. After these movements the device retains

to the switch, and S ₂ by moving the 45 the above state at. so that the next

Control member 36 to be able to switch. Can be done on a final trip. When the switch

Side of the control member 36 is a stepped part 36 «device is actuated, the movable arrives

provided with a hook-shaped part 19 /> at contact S ₁₁ with the terminal S. ,, in contact to

the lever 19 can come into engagement. The control switch S ₁ to close. This will make the

member 36 is biased by a spring 45. A 5 «> circuit with the battery E, the switch S ₁ . to the

Switch., Has connection contacts S.,., And S. ,,, as well as motor AZ ₂ and the SchallerS ₂ closed to the

a switch tongue S. ,, .. A switch 46 is used for motor AZ. to put into operation. In d'eser way will

Switching between single shots and on one- the wheel 23 is turned clockwise and the pen

other recordings. Far- is a battery- 25 presses the end 28 /> of lever 28 further to

Rie E is provided, one end of which Ea can be actuated with a trigger pin 27. Then he presses

Conclusion M _1. , The motor M ₁ via the switch S., or pin 25 against the end 32 "of the lever 32. to the

to pivot lever 32 connectable to a connection M _{iu of} the motor M ₂ , the other being linde

is, while the other pole Eb of the Spaiinungsquelle 22 b presses against the pin 40, ur; the control member 36

to the terminals S ₁ 'and S. ,,, the switch S ₁ and bring it into the position shown in Fig. I position, me-

S., is connected. "60 which the switch ₂ oiled and the switch,

"The other terminal S ₂ ,, of the switch S., is closed with. When the switch S _{2 is} open, is

the other first shot MJ ,, the engine AZ., "connectedness the power supply to the motor M ₂ is interrupted currencies

the, and the other connection S ₁ ,, of the switch S ₁ rend, however, the MoIOrAZ ₂ the "wheel 23 due

is with the other terminal M _n , the motor M _{1 of} its inertia continues to rotate and the wheel in the

connected. The switch S ₄ is parallel to the 65 in FIG. 1 arrives when the pin 26

Switch., Between a terminal Ea the tension is stopped by the end 38 «of the lever 38,

voltage source and the connection M _{1 a of} the motor M ₁ which is in this position by the control member 36

iiniteschlosscn. is brought.

5 6

Preferably there is a friction clutch between the switching device are in the non-twisted state

the motor M ₂ and the worm wheel 32 use leaf springs at a small distance from one another

manure. arranged.

As long as the switching device is in operation. As in Fig. 1, the motor rotates Λ /, up to

at the movable switch contact S. ,, with the termination of the film transport, after which the connection

Connection S _{30 of} the switch .S _{1 maintains} a contact producing cable 110 while the motor Λ /, itself

the facility is paused. continues to rotate, so that the gear 105 the sheet

VVcnn the switching device is released, spring ISO is twisted and the movable contact S _3C on the shaft 105 is loosened from the coordinated contact member 155 in contact with the clock .V, _M and comes into contact with the connection S _st , Contact member 156 on the connector side to switch the switch S ₃ . As a result 110 reaches the circuit for actuating de *, the circuit of the motor / Vf _{1 is} closed and the electromagnet 159 is closed. As a result, the film transport begins in the electromagnet 159 shown in FIG. 1 and pulls a projection. The work steps up to the next 119a of the lever 119 . whereby the lift! H ¹ J readiness to release the shutter represent only one cycle in the counterclockwise direction around the shaft for a single shot. 118 is pivoted. A jack U9b arrives

In the case of carrying out successive recordings, which are then disengaged from the control member 136, when a switch parallel to the switch S ₁₁ in while the control member 136 is moved to the left by a spring 145 of the circuit for the motor M _x and a pin 142 the shoulder .V _{1 is} closed. the motor Af ₁ starts the 20 tcr S ₁ öfTnct in order to interrupt the energy supply to the motor M ₁ film transport immediately after the end of the movement. Then the switch S _{1 is} closed the device by the motor Λ /.,. even sen. A pin 141 moves to the left and when the movable contact .S ₁ , is not in contact with the con lever 131 , the pin 141 is in contact with one stroke of rotation .S ₁₁ , of the switch .S '. If disc 123 allow. The control element 136 is effective and the switching mechanism is effective and is stopped in a state in which the soft contact,,,, with the contact,., In Bc switch, closed and the switch. can transport the film and the ver is.

be repeated. If other- As a result of too great a twisting of the gearwheel

"-cits the switching device is released, 105 keeps the leaf spring 150 tensioned, the tooth-

the facility in a state. in which the 30 wheel 105 rotated back to the one in the leaf spring 150

the next shutter release can take place. dissipate stored energy, so that a radial

If the inertia of MoIOrSAf ₂ causes movement, compression of connector 110 and

des Steiicrglicds 36 is not sufficient, the device can be released to the connecting part in the camera,

device can be modified so that the movable When a toggle button 160 is pressed, is

Contact s. ,, is in contact with contact S ₃₁ . 35 a switch S. closed and a switch in \ er

until the lever 19 disengaged from the control member bond with the switch ,, opened. To this

36 arrives. Way, a circle for the motor Λ /., Is closed.

Fig. 2 shows another general guide example so that corresponding movements as in the extent of the invention at which the end of the guide example in FIG. 1 take place.
Film transport is electrically nachgcscn and the 40 Fig. 5 shows a circuit of another off control member of a lever acting on it guide example. furthermore a unit for remote control being provided by the action of an electromagnet, as well as a Vci / ögerungswird. A Schaller is used as an electrical downstream circuit for starting the motor M ₂ and a wciseinrichtunc is used, which is arranged on a torsion timer circuit to change the intervals between the connection. 45 consecutive shots.

In F i gT 2 there are F i g. 1 corresponding parts with The delay circuit for the delay. jriine dc>

to see a reference number increased by 100. Starting the motor Af is particularly advantageous

The rotary movement of the motor M ₁ for the film avoidance of impairment of the image quality

transport is on a gear 105 via a reduction due to an incomplete stalling de

Ziergeiriebe 102.103 and 104 to a connection 50 film when the shutter is released immediately after

transferred part 110 for the film transport, with one stopping the motor for the film transport bc

Leaf spring 150 between a shaft 105 a of the tooth implementation of successive recordings so

rad * 105 and a shaft HOa of the connecting part such as to prevent irregularity bein

110 is provided. around the tensioning of the closure closure process due to friction effects ir

and to effect the film transport. 55 the locking mechanism, which by an un

The shaft 105ο and the shaft 110a are at iso- sufficient radial clearance between the conn

leaning cylinders 151 or 152, which could be caused between manure parts,

which a switch is arranged, as shown in FIGS. 3 The timer circuit for changing the Inter

and 4 is shown. In the F i g. 3 and 4 are equivalents in consecutive recordings, womi

Conclusions 157 and 158 shown, the connection 60 is a delay in the start of the motor Af

with the relevant connection of the electromagnet is in a combination with the in F i g. 5 shown

159 serve and constantly with conductive rings 153 posed facility advantageous when recordings ii

or 154 are in Touch, ρ, which is carried out at the iso-constant time intervals

lating cylinders 151 and 152 are provided. should, for example, one image per minute or hurry

The insulating cylinders 151 and 152 also carry 65 frames per 1/2 minute to gradually move Contact members 155 and 156. to be able to record intermittently with the rings of the object.

153,154 are connected to a switching device In F i g. 5 is a delay circuit D for dei

luns.Sg / u form. The contact members 155,156 of the motor Af _t and a »timer circuit C are provided

7th 8th

In this case, the switch .V _{1 is} blind together with. In this case, the battery E., not any other switch assigned to it. about the delayed mode of operation in contrast to the remote control as a voltage factor used to run the mode of operation of the device in FIGS. 1 and 2. The switches .V., And .V ₁ are in too one possible position. 5 of a location that is shown in FIG. 5 with solid lines F i g. 5 shows the addition at the end of what is shown. Hin switch S _H in the Hinhcit 0, the execution is for film transport, wherein the Schalter.V ₁ of the arrival of the Schalter.V. Provided and the scMuß /> is switched to the terminal α. The switch .V. for the switch .V _{1 of} the execution, if the potential at the junction of the condcnsa- the hernia 0 is not present.
tors C ₁ and the resistance / ?, the delay io Fine indicator lamp L is in the. Hinheil 0 voigc-Kchnllunc is lowered when the switch .V ₂ is seen, which then lights up when the current is switched through. After a certain constant time - the motor Ai, which means that the Mospanne runs, the transistor T ₁ becomes conductive. As a result, tors A /, for the user of the back level 0, is displayed in transistor TU., Conductive, in order to start the motor Af ₂ .

to run. The switch .V ₂ is after the Vcr- 15 Hinc coil Lc with a very small resistance

circuit release is switched on and the condenser is in series with the circuit of the motor AZ ₁

torC, will see via the short-circuited switch .V ₂ which actuates a switch / .v. If the

invite. In this way, the voltage between switches S _n and .V ₁ with the contacts /) and a in

see the base and the milter of the transistor TR , are connected and if the switches .V, and .V.,

equal to 0. so that the transistor TR ₁ becomes non-conductive 20 are closed. Is a current through the motor AZ *

and thus the transistor TR., the current supply to and through the coil Lc. around the one from a ladder

the motor M., interrupts. to tighten the existing switch Ls and

When the switch .V, and the switch .V ₂ through the circuit of the lamp /, to close, which is parallel to the

a control element similar to the Stcucrglicdcrn 36 and circuit of the motor is located. Then it lights up

13d in Figs. 1 and 2 are closed, the 25 lamp /, is on.

Mol γΛ /, ready to start transporting the film. In Fig. 5, the lamp L is only in the circuit. If the switch .V ₁ from the terminal α to that of the motor Λ /, is provided, although it is turned over in certain terminal h , the sounding of the case is more appropriate. a circuit with a motor Λ /, connected to the battery E « , so that an indicator lamp for the motor Λ /., to be provided. If, after a certain period of time consecutive in such a case by the timer circuit T, a silicon gcstcucrtcr synchronization is carried out with a remote control, the motor Af is switched on to allow the motor Af to start up . the lamps on. That the execution is carried out in a noima-Nacli ending the transport of the film is the usual way. To the course of the two Mogreifende levers out of engagement with the control member 35 gates Λ /, and Λ /, characteristic lamp proceed, after which the switches .V ₁ and .V ₂ at the same time each of the two circuits of the two motors will be opened to the power supply to the Mo- disconnected with the remote control unit Λ /, and Af ₂ to be interrupted. Therefore, the, which, however, leads to a complicated interlocking release of the shutter, can take place. wiring results. However, it is possible to display the I. On the circuit T , the Hntla- 40 both motors by a simplified circuit formation of the capacitor C ₂ according to a constant of the type shown in FIG. . and two display sounds are provided in such a way that although two display devices are running via a transistor UJT and a resistor, if the voltage across the condenser is optionally displayed by two motors. To this salor C, with the RC-Glicd ('., R _n on a voltage 45 purpose, the difference in the current intensities of the increases, which is greater than that at the anode of the two motors, is used to prove and what is at the transistor UJT by a shunt to show which motor is rotating, as is determined in I "i g. ft representation of the resistors R _1, R ₉ and R _4. It is assumed that through the Moist, tor Af, a current r, and through the motor M, a Since the RT circuit CT, R, flows to the anode of the 50 current r _; . Hine circuit X for the motors Λ /, unipolar transistor UJT is connected. gives the and Af. is in series with a Resistor connected to the shunt circuit R _1, R ₁ and R, a gate battery E. No junction dei potential for the transistor UJT . In this way, circuit X and the resistor Ra is connected to two circuits with a potential due to a discharge current each a schmitt through the resistor R _{s contained in} a gate of the silicon _{circuit, namely via diodes O 1} and D _t controlled rectifier WR and there- One of the two Schmitt circuits contains transistors connected by the rectifier to the Mo- Tra and Trb and the other Trans. <torcn Trd around! tor Af ₁ in motion. If the cons- Tre. The voltages through which the transistor stood the resistor R _{6 is} variable. If the Trb and Tre can be made conductive, the Zcilkonlante of the circuit CJt can also be changed by the variable resistances Re and R. that the period of time is set from the opening of the. If i, is smaller than / .. then neither switch S, until the motor Af starts up. changed the two transistors 7> r and Trf in the wcrilin, which is why the timer circuit T switched over to the conductive state, so that the bcidci sJanti time intervals when performing on each other An / cigctampcn /., and L. weight light up. Specified in the di-rfolder recordings. 6 $ circuits should the two resistors Rb around the connections A. B and C for the remote control Rj? to apply the base potential of the beidci there are K * wct1s with the connections A '. ß * or C of the transistors Tn- and TrI may be small, so that the base I inhcit II for control sewing in a suitable manner causes that "lic K-idcn Tran

sistors T rc and Trf are switched into the conductive state in the above case. When the current Z _{1 flows} through a motor used for triggering and a resistor Ra , a voltage /, Ra Liier causes the diode D _{1 of} the Schmitt circuit for the lamp L ₁ that the transistor Trc becomes conductive and the lamp L ₁ lights up.

In this case, the resistance of the resistor Rj should be selected so that the Schmiltkreis for the lamp L ₁ cannot be operated to switch the transistor TrI for the lamp L ₁ . If the larger current /., Through a motor for the film transport and a resistor Ra , causes a voltage i., Ra across the diode [>., Of the Schmitt circuit for the lamp L ,, that the transistor

10

reu TnI and Trf become conductive and the lamp L ₂ lights up, while a diode / λ is provided in a Uiiekkopplungskrcis to prevent the lighting of the lamp L ₁ , so that the transistor Trh is switched to a conductive state and the transistor 7Vc the circuit of the lamp L ₁ switches off.

In this way, the two lamps L ₁ , - L., do not light up when there is no current flowing in the motor connections X , while only the lamp L ₁ for the current / and only the lamp L ₁ for the current /., Lights up to show how the camera is working. Furthermore, a similarly designed warning sound to indicate the end of the film can be seen.

For this purpose 2 sheets of drawings

Claims (2)

ι 2 patent claims closure required st, and then automatically 'strikes. Furthermore, a construction (B) is known, 1. Electric drive device for one in which the connecting link for the lock Camera that has at least two drive devices with the camera beyond the specified angle gene for the film transport and the shutter 5 can be rotated, when reaching a has activity, characterized by the limit position for the film transport the further a control member and a device for rotational movement by a friction connection on-proof the termination of the film transport. whereby the one drive device and the after- In the construction (A) it is necessary, however, pointing device a forward movement and an io that the angle of rotation and the stop position of the two Cause return movement of the control member, and connecting parts coincide exactly. If there- wherein the control circuit circuits for the two when a shortfall occurs, one could be too low Drive devices closes and opens in order to or for extensive film transport to take place. at the film transport and the shutter sequence to the construction (B) remain the two connections steer. 15 manure parts in a radial direction 2. Drive device according to claim I, there- pressed state, even after the stopping of the characterized by the fact that the Naehwcisunrich- rilmtranspnrtmcciiamsmus. wesnain himself "Kiiwicni: a torsional connection and an electrical wedge with regard to yeast solution stop. New. while the expiration of the lock