DE3049083C2 - Photographic cassette camera and cassette - Google Patents

Description

2. Camera according to claim 1, characterized in that the movable component (4) has a projection (4c) which protrudes into the cassette space (le ^ through a recess [Ul) arranged in the region of the cassette contact surface (ic) on the camera housing side.

3. Camera according to claims 1 and 2, characterized in that the recess (id) is arranged in a between a cassette center (10) and a laterally arranged exposure opening (2d) lying area of the cassette space wall that the into the cassette space (Ie,? Protruding projection (4c) holds the cassette (2) when the cover element (3) is in the closed position in an inclined position raised from the camera-side support (ia).

4. Camera according to one or more of the preceding claims, characterized in that the movable component (4) is mounted around a collar (if) of the camera housing (1) so as to be pivotable about the cassette center (10).

5. Camera according to one or more of the preceding claims, characterized in that the movable component (4) has a driver (4a) engaging in the cassette-side cover element (3).

6. Camera according to one or more of the preceding claims, characterized in that the movable component (4) on its rear side opposite the projection (4c) and in extension to the projection (4c) has a slide cam (4d) , and that the slide cam (4d) attacks a control ramp (I /) on the camera housing side.

7. Camera according to claims, characterized in that the control ramp is designed as an elevation (H) or depression with an approximately parallel to the cassette contact surface (1 ς) extending surface section and a ramp-shaped surface section inclined with respect to this surface section.

8. Camera according to claims 6 and 7, characterized in that the increase (1 / ^ or depression is arranged concentrically to the cassette center (10)

9. Camera according to claims 6 to 8, characterized in that on the rear side of the movable component (4) several, corresponding to several camera housing side provided increases (I ^ or depressions associated sliding cams (4d) are arranged.

10. A camera according to claims 1, 4 and 5, characterized in that the movable component (4) has a plurality of projections (4c) arranged around the cassette center (10) which are concentric by a plurality of in the region of the cassette support surface (ic) on the camera housing side to the cassette center (10) arranged recesses (id ) protrude into the cassette space (Ie).

11. Cassette for a camera according to claims 1 to 5, characterized in that on the outer surface of the exposure opening (2d) having the wall of the cassette (2), one in the area between the cassette center (10) and the exposure opening (2d) is arranged Elevation (2a) or depression with a surface section (2a) running approximately parallel to the outer surface and a ramp-shaped surface section (2b) connecting this surface section (2a) to the outer surface of the cassette (2), on which the camera-side projection (4c) of the engages movable component (4)

IZ cassette according to Claim 11, characterized in that the elevation (2a) or depression is arranged concentrically to the center of the cassette (10)

13. Cassette for a camera according to claims 1, 4, 5 and 10, characterized in that on the outer surface of the wall of the cassette (2) having the exposure opening (2d ) several elevations (2a) arranged concentrically to the cassette center (10) or depressions with surface sections (2a) running approximately parallel to the outer surface and ramp-shaped surface sections (2b) connecting these surface sections (2a) to the outer surface of the cassette (2) on which the camera-side projections [4c) of the movable component (4) engage .

The invention relates to a photographic cassette camera containing the film material Cassette has an exposure opening and a movable cover element which closes the exposure opening in a light-tight manner has, and in which the exposure opening of the cassette depending on one for manufacture the readiness to take the necessary measure released by moving the cover element or is covered at the end of the readiness for exposure, and the one protruding through the exposure opening of the cassette into the cassette camera housing-side film support is provided.

The invention relates to a cassette for a camera of the above type.

DE-OS 28 09 856 is a flat type cassette and a small type of camera for use this cassette became known in which the

Cassette is designed so that a camera-side Film support protrudes through an exposure opening on the cassette side into the cassette and rests against the film A cover element is located between the film and the inner wall of the cassette which has the exposure opening arranged. The film and cover element are around a cassette center rotatably mounted, the film is designed as a circular disc when inserting the In the cassette, the cover element is initially in the recording beam path and thus in the area of the camera-side Film edition.

The cover element is inevitably controlled in this known camera so that it is the first Film transport stroke releases the exposure opening and the exposure opening at the beginning of the opening of the rear cover covers again During the cover movement, however, the cover element strikes against the now in his Movement path lying camera-side film support and must slide up on this in order to be between these and to get the film into its covering position.

Especially with the covering movement, dv? by means of a spring tensioned during film transport also takes place during the release movement of the cover element this creates a very large frictional torque that is overcome by the camera mechanism got to.

To facilitate the covering movement of the covering element, the surface of the camera-side film support the known camera therefore rounded so that the cover slide up easier on this can. However, the increased frictional torque between the cover element and the film platen puts a strain on the camera mechanism such that the film advance accordingly must be set higher.

The known camera is also equipped with a pressure relief device provided that controls a movable pressure plate. The pressure plate acts on you limited, elastically formed region of the film cassette assigned to the camera-side film support. The pressure plate is controlled depending on the actuation of the trigger so that it is only activated when the button is pressed Trigger acts on the elastic cassette area and the film is flat against the camera-side film support pressed When the trigger is released, the pressure plate is relieved

In another known camera and cassette (DE-PS 10 02 615), film support means are provided on the cassette side is provided, and the cover element is in front of the film support means when viewed in the direction of the receiving radiation beam arranged. In this known camera, it is true that one is independent with regard to the film support means Movement of the cover element possible, but the structural effort required for this is so great that the cassette both requires a large amount of space and is very expensive to manufacture, so that this Cassette is neither usable for miniature cameras nor suitable for inexpensive mass production

It is the object of the invention to provide a cassette camera and an associated cassette of the generic type Kind to the effect that without additional loading of the camera drive and without impairment the functional positioning of the ready-to-receive cassette, the cassette-side cover element can be easily moved unhindered by the film support on the camera side.

According to the invention, this is the case with a camera of the generic type Kind achieved in that a during the locking or unlocking of a cassette compartment cover movable component of the camera protrudes into the cassette space of the camera housing that the Component acts on an outer surface of the cassette having the exposure opening that the component engages the Controls cover element so that it closes the exposure opening when the cassette compartment cover is unlocked and that the cassette is partially by means of the component when the cover element is in the closed position or completely lifted from their camera-side support

ίο is

In addition, this is achieved according to the invention in a cassette for a camera of the generic type achieved that on the outer surface of the wall of the cassette having the exposure opening elevation or depression arranged in the area between the cassette center and the exposure opening with a surface section running approximately parallel to the outer surface and this surface section with the outer surface of the cassette connecting ramp-shaped surface section n- is arranged which the camera-side projection of the. attacks movable component

In an advantageous embodiment of the invention, the movable component of the camera engages in between the center of the cassette and the exposure aperture Area on the cassette so that the cassette inserted in the camera can be opened when the cover element is closed is held in an inclined position raised from the film support on the camera side.

In a further advantageous embodiment of the invention, the movable component of the camera can be pivoted around the cassette center is arranged and has a driver which is inserted into the cassette-side cover element intervenes

In an advantageous embodiment of the invention, the elevation or depression of the cassette is concentric arranged to the cassette center.

In a further advantageous embodiment of the invention the movable component of the camera is provided with a sliding cam on one side of the camera housing Attacks control ramp, which is arranged concentrically to the center of the cassette, as an increase or Depression is formed and with an etv / a parallel to the cassette contact surface extending surface section and a ramp-shaped surface portion inclined with respect to this surface portion is

In a further advantageous embodiment of the invention, several slide cams and are on the camera side

so control ramps are provided, which the cassette about Lift off parallel to the surface of the cassette.

In a further advantageous embodiment of the invention ϊ-agt the movable component in several places in the cassette space and it is on the cassette side several control ramps are provided so that the cassette is lifted approximately parallel to the cassette contact surface can be.

The solution according to the invention is more advantageous Way achieved that one inserted into the camera

so the cassette is initially kept away from the camera-side film support or one can be removed ?; cassette is lifted from the film platen, so that the cover of the cassette is unobstructed and thus without additional Kraftai fwand can be moved.

* 5 Other features and advantages are the description of exemplary embodiments of the invention shown in the drawing and the dependent claims refer to.

The drawing shows a schematic representation in FIG

F i g. 1 the cassette receiving area of a camera with inserted cassette, with cover element in cover position;

F i g. 2 the camera and cassette according to FIG. 1 with in Release position located cover element;

F i g. 3 the camera and cassette according to FIG. 1 seen from above;

F i g. 4 shows a further exemplary embodiment of a camera with a cassette, with a cover element in the cover position; and

F i g. 5 the camera and cassette according to FIG. 4 with the cover element in the release position.

On a partially shown camera housing 1 with a taking lens 9 is a film support 1 a, which protrudes into a cassette space 1 e and Is formed circular.

At an outer diameter of a collar! / "Des Camera housing 1 is a component 4 mounted pivotably about a drive axis 10 forming the cassette center and stands over a pin 4 £> with a slide 7 of a rear cover locking mechanism not shown in engagement.

On an inner diameter of the collar 1 / the camera housing 1, the drive shaft 10 forming the cassette center is rotatably supported by means of a Toothing engages in a cassette-side toothing and from a camera-side, not shown Film switching device is driven.

The component 4 has a projection 4c, which through one concentric to the drive axis 10 of the cassette center and between this and the film support la arranged recess Ir / of the camera housing 1 protrudes into the cassette space 1 e.

The cassette 2 is provided with a loading opening 2d through which the camera-side film support la protrudes into the interior of the cassette

A circular film disk 8 is arranged within the cassette 2 and rotatably disposed between it and the exposure opening 2c / a cover element 3, the cover element 3 covering or exposing the exposure opening 2d

A driver 4a of the component 4 engages the cover element 3.

On the outer surface of the cassette 2, as in particular from FIG. 3, an annular section-shaped elevation 2a arranged concentrically to the drive shaft 10 is integrally formed

The elevation la is arranged on the same radius to the drive axle 10 as the projection 4c of the pivotable component 4 and engages on this.

The elevation 2a has a surface section running approximately parallel to the outer surface of the cassette 2 and an inclined, ramp-shaped surface section 2b connecting this to the outer surface of the cassette 2.

The cassette is located within the cassette space Ie 2 under the influence of springs 5 and 6, which urge the cassette 2 against the cassette contact surface Ic.

The mode of operation of the device is as follows:

When the cassette compartment Ie is open, the Slide 7 of the skirt cover locking mechanism in the in F i g. 3, in which he holds the component 4 in the position shown there

If a cassette 2 is now inserted into the cassette space Ie, the toothing on the cassette side engages the toothing of the drive axle 10.

This is done in the usual way through the shaping

of the cassette 2 and a corresponding configuration of the camera-side cassette space Ie (not shown ensures that the cassette 2 is only laterally correct can be inserted.

With the cassette 2 inserted as shown in FIG. 1, the parallel surface section of the elevation 2a rests against the projection 4c of the component 4, so that the cassette 2 is pivoted by a line \ b as shown in FIG. 1 assumes a visible incline.

In this inclined position, the camera-side film support la protrudes through the exposure opening 2d into the cassette 2, but it does not rest against the cover element 3 which is in the covering position. so that this can be moved easily because it is not obstructed by the film support la.

Nachdc—. the cassette 2 has been inserted. confused! the cassette compartment closed and locked. When locking, the slide 7 is shown in FIG. 3 is moved to the right and the component 4 is pivoted clockwise.

During this pivoting movement, the projection 4c of the component 4 initially slides along the parallel surface area of the elevation 2a of the cassette 2, and the exposure opening 2d is released and the cover element 3 is pivoted away.

As soon as the cover element 3 has released the exposure opening 2d of the cassette 2, the projection 4c of the component 4 reaches the ramp-shaped surface section 2b. Under the action of the springs 5 and 6, the latter slides down from the elevation 2a to the outer surface of the cassette 2. The cassette 2 now assumes its position shown in FIG. 2, in which it rests against the cassette contact surface Ic of the camera housing 1 under the action of the springs 5 and 6

The cassette 2 is now in its ready-to-receive position. The cover element 3 and the component 4 take the in FIG. 3 position indicated by dash-dotted lines.

By gradually rotating the film disk 8 by means of a film transport device (not shown) this exposed in sections. The film disk 8 is to achieve a good flatness during each Recording pressed against the film support la by means not shown

For removing the partially or fully exposed Cassette 2, the cassette space Ie is opened for this purpose

is this initially by moving the slide 7 after

so left to unlock. The component 4 is in the G -gen swiveled clockwise

Here, its projection 4c from the dot-dash position according to FIG. 3 first moves up onto the ramp-shaped surface section 26, and the cassette is pivoted about the line \ b into the inclined position according to FIG. t raised.

After the cassette has reached its inclined position, the film support la is no longer in the path of movement of the cover element 3. The projection 4c The cover element 3 now slides along the parallel surface area of the cassette elevation 2a pivots in front of the exposure opening 2J of the cassette 2 and covers it against incidence of light.

After the cassette 2 has been closed again in a light-tight manner by the cover element 3, the Slide 7 its unlocked position in which the cassette space Ie can be opened.

Deviating from the example shown

game the cassette 2 can also be provided with several concentric to the cassette center arranged elevations 2a, which cooperate with corresponding, several projections 4c on the component 4 in such a way that the cassette 2 is raised approximately parallel to the cassette contact surface ic around the cover element 3 during its movement from the film edition la fernzuhakit.t.

A further exemplary embodiment is illustrated with reference to FIGS. 4 and 5 described, in which the inclination of the Cassette 2 is reached exclusively by means on the camera side.

This exemplary embodiment differs from that according to FIG. 1 to 3 in that on a wall ig of the camera housing 1 an annular section-shaped elevation 1 / is arranged concentrically to the drive axis 10 of the cassette center.

The movable component 4 has, on its rear side opposite the projection 4c and as an extension of the projection 4c, a sliding cam Ad which rests against the elevation 1 / on the camera side.

The elevation 1 /, the sliding cam Ad and the projection 4c are arranged on the same radius as the drive axle 10.

The elevation 1 / has a surface section running approximately parallel to a surface 1 / i of the camera housing 1 and a ramp-shaped surface section which is inclined with respect to this and merges into the surface IA (similar to the elevation la and 2b on the cassette 2 according to FIG. 3) .

For mounting the pivotable component 4, the collar if of the camera housing 1 is made longer in this exemplary embodiment, since its outer diameter is not only used for rotary mounting, but also as a sliding bearing for the component 4

The cassette 2 has a substantially flat outer surface.

This device works as follows:

When the rear cover locking mechanism is unlocked, the component 4 takes the position shown in FIG. 4 position shown. The projection 4c of the component 4 projects beyond the cassette contact surface into the cassette space Iehin, since the sliding cam Ad is supported on the elevation 1 /

As a result, the inserted cassette 2 is pivoted about a line \ b and assumes the inclined position shown in FIG.

If now the cassette space Ie is closed and is locked, takes place analogously to the embodiment according to FIG. 1 to 3 describe a pivoting of the component 4.

Its sliding cam Ad initially slides along the elevation 1 /, during which the cover element 3 exposes the exposure opening 2d of the cassette 2.

After the cover element 3 has released the exposure opening 2d , the slide cam Ad slides over the ramp-shaped surface area from the elevation 1 / down and onto the surface \ h. The cassette 2 then assumes the ready-to-receive position shown in FIG. 5, in which the cassette 2 rests against the cassette contact surface Ic

When the cassette space cover is unlocked for the purpose of removing the cassette 2, the component 4 pivots. Its sliding cam Ad slides over the ramp-shaped surface area on the parallel surfaces range of increase 1 / up.

As a result, the projection 4c is moved into the cassette space Ie and the cassette 2 is moved around the line

1 b into the one shown in FIG. 4 tilted position shown.

In the inclined position, the film support la lies outside the path of movement of the cover element 3 so that it can be moved unhindered.

After covering the exposure opening 2d , the cassette space Ie is released for opening and the ίο cassette 2 can be removed.

In a modification of the exemplary embodiment according to FIG. 4 and 5, several elevations 1 / and sliding cams Ad can be provided with which the cassette

2 then raised parallel to the cassette contact surface Ic as long as the cover element 3 is moved.

Of course, instead of the elevations 2a (Cassette 2) or 1 / (camera 1) also depressions (not shown) with correspondingly designed areas

OncnucrciChcn be provided.

Deviating from the illustrated embodiments, the cassette-side or camera-side elevation (2a or M) can not be designed concentrically to the center of the cassette but in a straight line, on which control means (4, 4, Ac) attack, which bring the cassette 2 into the inclined position described. Two elevations (2a or M) which are arranged parallel to one another and are arranged parallel to the slide 7 can also be provided here.

It is also possible (not shown) to use the projection 4c acting on the cassette 2 as a separate one Form the control part of the movable and provided with a ramp-shaped increase or is moved on such an adjacent component (4), wherein the component (4) can also be designed as a rocker can.

For this purpose 2 blue drawings

Claims (1)

Patent claims: 1. Photographic cassette camera whose cassette containing the film material has an exposure opening and a movable cover element which closes the exposure opening in a light-tight manner, and in which the exposure opening of the cassette is released by moving the cover element as a function of a measure necessary for making the film ready for exposure Completion of the readiness for exposure is covered, and which is provided with a camera housing-side film support projecting through the exposure opening of the cassette into the cassette, characterized in that a component (4) of the camera which can be moved into the cassette space during the locking or unlocking of a cassette space cover (suffer Camera housing (i) protrudes so that the component (4) engages an outer surface of the cassette (2) which has the exposure opening (2d) , that the component (4) controls the cover element (3) in such a way that when the cassette compartment cover is unlocked it The exposure opening (2d) closes and that when the cover element (3) is in the closed position, the cassette (2) is partially or completely lifted from its camera-side support (ta) by means of the component (4).