DE3340695C2 - Photographic cassette camera with a counter - Google Patents

Abstract

In the movement path of a counter element (4) there is a stop means (8, 11) which, controlled by a cassette (10, 10a), can assume various stop positions. The stop positions are determined by a web (10a) of the cassette (10), the length of which is assigned to a number of image units available in the cassette (10). The web (10a) of the cassette (10) also serves to lock the cassette (10) in its position of use. The locking member (6, 13) used for this purpose is influenced by the stop means (8, 11) in such a way that the cassette (10) is automatically unlocked after all the image units have been used up, depending on the movement of the counter. The cassette (10, 10a) is unlocked either purely mechanically or by means of electromagnetic actuation.

Description

3 4

4d'wn is applied clockwise. must be conveyed out, the counter 2, 3 and 4

The driving member 4 has a U-shaped Ab- by rotating the spindle 3 depending on a

cut on, the inner surface of which with a known type in the spindle image transport device each by one

3 engaging threaded part 4a is provided on the picture number

Carrying element 4 is arranged a leaf spring 4c, which protrudes into the path of movement of a cassette 10 when the last image unit number is conveyed out. The pointer 2a moves "ten" to display "zero". The projection 4b of the driving member 4 is in a stop member 8 arranged in a movement path abuts the projection 4b of the driving member 4 against the surface Sb and thereby moves the stop member 8 and thus also the locking member 6 against.

The stop member 8 has a first, the front 10 gene of the spring 7.

jumped 4b of the driving member 4 associated arm 8a This brings the nose 6a of the locking member

and a second, a web 10a of the cassette 10 and 6 out of engagement with the web 10a of the cassette 10,

ordered arm 8c. Between these arms 8a and so that the pretensioned ejector spring 5 pushes the cassette 10

8c is a set back in relation to the arm 8a and shifts against the direction of the arrow »Λ«. Not shown

also the projection 46 of the driver member 4 15 provided means prevent the cassette 10 from the

Orderly surface Sb arranged Camera falls out The push-out movement takes place

The stop member 8 is only so far on a locking member that the cassette 10 can be grasped by hand.

6 pivotally mounted about a bearing 66 and is of the can.

a spring 9 counterclockwise gerjen the web It is also possible to use the ejector spring 5 only

10a of the cassette 10 is acted upon 20 to unlock the cassette 10 and

The stop member 6 is displaceable on the spindle 3, which can be pushed out further up to one by hand

guided and movable against a spring 7. tangible position by means of a cassette ejection device

On the locking member 6 there is a known type, not shown, to be carried out.

locking lug 6a, which sen the web 10a of the cassette 10.

engages behind. As soon as the ejector spring 5 extends the cassette 10 around the further into the cassette receiving space an ejector spring 5 associated with the cassette 10, which has been pushed out, relaxes. the leaf spring 4c and becomes ineffective. The operation of the device is as follows: the tension spring 4d is effective, which the driving member 4 in. It is initially assumed that it is not pivoted clockwise, so that the threaded part of the cassette 10 is located in the cassette receiving space. In 30 4a comes out of engagement with the spindle and in this case the driving member 4 is returned to the starting position under the action of the ger member 2. Spring 4d so far in the clockwise direction, that after the removal of the cassette 10, its threaded portion 4a not to the spindle 3 in engagement and the locking part 6 and the abutment member 8 is, the spring 4d pulls the link member 2 further in by the springs 7 and 9 in the starting position to a starting position. 35 moved back.

When the cassette receiving space is empty, the If a cassette 10 is inserted, the ma-

Locking member 6 in the position shown in FIG. 1, in the ximal number of images is less than ten, then the

which it is held by the spring 7. The stop member cassette 10 has a shorter web 10a. This will

8 assumes the position shown in phantom, the stop member 8 is not pivoted from the web 10,

in which it rests against the pin 6c of the stop member 6. 40 but remains in the figure shown in FIG. 1 shown in dash-dotted lines

When inserting a cassette 10 in the direction of the arrow set position in which its first arm 8a is now in motion

“Λ” its web 10a abuts against that with an inclined path of the projection 4b of the entrainment member 4

before provided nose 6a, being moved by the insertion force.

the locking member 6 shifted against the spring 7, because the arm 8a protrudes Sb on the surface, which is

ben is and after passing the web 10a behind 45 stop member 8 then, for example, already after

this engages (see Fig. 2). Thus, the cassette 10 is pivoted out conveying the eighth imaging unit and the

locked in their position of use. Cassette 10 unlocked.

The web 10a of the cassette 10 according to FIG. 1 is corresponding by a corresponding design of the stop a larger number of available member 8 and the web 10a of the cassette 10 can standing image units are designed to be relatively long and also have more than two cassette unlocking positions As a result, the web 10a strikes during the insertion controlled.

bens the cassette 10 against the arm 8a of the stop deviating from the execution member 8 described and pivoted this clockwise in the example, the cassette unlocking takes place at a in the position shown in FIG. This swivel movement of the embodiment shown in FIG has the effect that its set back area is now magnetic.

before 86 in the movement path of the projection 46 of the same components of the two exemplary embodiments

taking member 4 is arranged. are provided with the same reference numbers.

Simultaneously with the insertion of the cassette 10, a test handle pivotable about a stationary bearing 14

If the entrainment member 4 is also positioned via the leaf spring 4c at 11 under the action of a tension spring 12 with and counterclockwise 60 pushbutton 11can against the tension spring 4d in the counterclockwise direction on the web 10a of the cassette 10.

to the lockers! 3 ar.gcschwcr.kt. This is the win- An dcir, tactile lever! 11 is an analogous to the

deteil 4a under the action of the leaf spring 4c in engagement with striking member 8 according to FIG. 1 acting switch arranged

the spindle 3.net, which depending on the position of the feeler lever 11 (length of the

Also when inserting the cassette 10, the web 10a of the cassette 10) is tensioned by the projection 46 of the ejector spring 5. ₆₅ driving member 4 is operated sooner or later.

Starting from the position according to FIG. 1, in which the switch has a first contact arm Π 6 and

the symbol opposite to the pointer 2a thereon a second contact arm which can be moved against the latter

indicates that the light protection element of the cassette still has 11 a.

5

The second contact arm 11a has two mutually stepped actuating surfaces Wd and He, of which in each case a function of the position of the sensing lever 11 _s in the movement path of the projection 4Z>

lies 5 Is

The contact arms 11a and 116 are marked with an EIeIc- ■:

tromagneten connected 13 whose armature 13a immediate:

bar engages behind the web 10a of the cassette 10 and as ::.

Locking member is used.

The mode of operation of the device according to FIG. 2 is ok ^!

the following: g

When inserting the cassette, the web 10a If overflows

the armature 13a provided with an inclined surface ent- If

against a slight spring preload until the armature | i

13a behind the bridge! Oa engages and the cassette 10 is in §

locked in their position of use ■? ';

The web 10a of the cassette 10 is according to the ί

maximum number of image units proportionately; '

formed long so that he has the feeler lever 11 in the

F i g. 2 position shown swivels In this position, 20 i ■ ^;

det the actuation surface Ud of the contact ^{arm 11a:} { _:

in the movement path of the projection from the driving link 4. ':.:.

The intervention and advancement of the counter 2, 3 and 4 takes place as already with reference to FIG. 1 described.

As soon as the projection Ad hits the actuating surface II rf after the last image unit has been conveyed out, the contact arms 11a and 116 make contact. The electromagnet is thus excited and the armature 13a

tightened against its spring preload, so that j

the cassette 10,10a is unlocked. . '

The ejector spring 5 then pushes the cassette 10 against the direction of the arrow »Λ« a little out of the

Cassette receiving space out, whereby the take-away 35 ^:

member 4 is decoupled from the spindle 3 and withdrawn by the tension spring Ad into the starting position. The contact arm 11a is immediately relieved of pressure again and springs from the contact arm HZ? away, so that the electromagnet 13 is de-energized again.

If a cassette 10 with a shorter web 10a corresponding to a lower number of images is inserted, then the feeler lever 11 assumes a position in which the actuating surface lie of the contact 11a is arranged in the movement path of the projection Ab of the driver member 4 Contact arms 11a, HZ »and unlocking of the cassette 10 by the electromagnet 13,13a.

In this embodiment, too, by appropriately designing the contact arm 11a more than two cassette release positions are controlled.

Deviating from the illustrated embodiment according to FIG. 2, the electromagnet 13 can also be a Activate the separate locking link via intermediate links.

For this purpose 2 sheets of drawings

60

65

Claims (9)

1 2 of the image units available in the cassette and with a counter assigned to the marking of the cassette. 1. Photographic camera for use There is a camera known (DE-OS 17 72 754), in of cartridges with a scannable, physical 5 of the cartridges with a marking use fin-marking for the number of the in the cassette to the, the a cover element controls that on a number-available image units and with a factory scale the maximum available number of the marking of the cassette assigned counting of recordings in a viewing window releases cameras factory, characterized in that are on with lockable and unlockable film cassettes z. B. beder marking (10a; the cassette (10) in the io knows from US-PS 42 56 395 or the US-PS movement path of a counter member (4, 4b) protrude 40 95 249. of the movable stop member (8; 11) and it is the object of the invention to provide a camera with a that the stop member (8; 11) in the end position of the counter and a cassette of the generic type The counter element (4, 4b) to design a cassette lock in such a way that one in its receptacle management element (6; 13) controls 15 meposition locked cassette at the end of the available 2. A camera according to claim 1, characterized in that the image units are marked, controlled by the counter, that the stop member (8) is gel as a two-armed. Lever is formed, the first arm (8c) of which on the According to the invention, this is achieved in that the marking (10a; the cassette (10) rests against the marking of the cassette in the movement path sen second arm (8a; in the movement path of the counter - 20 of a counter member protruding, movable stop mechanism member (4, 4b) is arranged member rests, and that the stop member in the end position 3. Camera according to claim 1 or 2, characterized in that the counter element is a cassette locking device, that the stop member (8) controls on the Kas member set locking member (6) pivotally mounted. In an advantageous embodiment of the invention, it engages and that the cassette locking member (6) in Fig. 25 has the stop member at one end of one of the marking In the direction of movement of the counter element (4), in the direction in which the cassette is inserted slidably mounted is stretching web and the locking member engages 4. Camera after one or more of the foremost at the other end of the bridge. pending claims, characterized in that in a further advantageous embodiment of the invention the stop member (8; 11) at one end of the 30 is the stop member on the locking member gela mark forming, gert in the direction of insertion and protrudes into the movement path of the counter elements The web (10a,) extending into the cassette (10) rests on the inside. and that the cassette locking member (6; 13) on In an advantageous development of the invention other end of the web (10a) engages. the locking member is actuated electromagnetically 5. Camera according to one or more of the protruding 35 and on the stop member is a in the movement path pending claims, characterized in that the counter member protrudes, the locking member the locking member (6) is arranged against the movement-controlling switch. direction of the counter element (4) and transversely to the design and arrangement according to the invention In the longitudinal direction of the web (10a; spring-loaded voltage is achieved in an advantageous manner that the case. 40 sets within the cassette receiving space in one 6. Camera according to claim 1 and 4, thereby locked and defined position after consumption of the for indicates that the stop member as a one-armed image units available automatically entrie-tactile lever (11) is designed that is gel on the feeler lever. (11) Contact arms (Ha, Ub) of a switch. Further features and advantages are described in the are arranged and that a contact arm (Wa) in motion 45 of the embodiment shown in the drawing movement path of the counter element (4, 4b) can be found in examples of the invention, is. The drawing shows a schematic representation 7. Camera according to claims 1, 4 and 6, characterized in that it is in the indicates that the locking member (13) elec- F i g. 1 shows a first embodiment of the camera in is operated magnetically. 50 diagrammatic representation, partly in section, and 8. A camera according to claim 7, characterized in that F i g. 2 shows a second embodiment of the camera that the locking member as an anchor (13a; in a diagrammatic representation, partly in section,
an electromagnet (13) is formed. The invention is based on an instant camera 9. Camera according to one or more of the above-described, of which only those for explanation of the pending claims, characterized in that 55 components necessary for the invention are shown. the counter element as one of the cassette (10) in In a camera housing 1 there is a non-engagement with a rotatable threaded spindle (3) shown in more detail cassette receiving space, which is formed in bringable entrainment member (4) and the arrow direction "A" extends and from the underside that the driving member (4) is accessible along one side of the camera housing 1.
Threaded spindle! (3) Vprschiehhar guided pointer- «n Above the cassette receiving space is a counting member (2) is pivotably mounted. plant arranged, which has a spindle 3, the over a gear 3a depending on an image transport device (not shown) is set in rotation. A pointer element 2 is displaceable on the spindle 3 65 bar, its pointer 2a along a figure number The invention relates to a photographic mernskala la is movable. Camera for the use of cassettes with a to the pointer element 2 is a driving member 4 to scannable, physical marking for the number a bearing 2b pivotally supported by a spring