DE7910766U1 - SLIDE PROJECTOR - Google Patents

Description

LEVERKUSEN

CAMERA-WERK MUNICH

10, h. 1979

10-eh-ro CW 2249.1 PP / MP

Slide projector

The invention relates to a slide projector with an image stage and a magazine guide for using slide magazines in which the slide frames of the slides to be presented are perpendicular to the push-in and push-out direction or to the transport direction in the projector separated from each other by interlocking Positive locking elements of the magazine and slide frame edge are held positively.

Slide magazines and slide frames of the type mentioned that are suitable for this have already been proposed. When using such Magazines and the demonstration of such magazines arranged slide frames, it is not possible to reverse slide frames inserted into a magazine without removing the To remove the magazine from the projector from the magazine and insert it the right way round.

The invention is therefore based on the object in one Projector of the type mentioned to provide an optionally usable device to prevent the normally When a slide frame is returned to the magazine, there is a gap between the slide frame and the magazine.

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CW 2249.1 PP / MP

According to the invention, this object is achieved by the features of the main claim. Further advantageous features according to the invention can be found in the subclaims.

I The invention is explained in more detail with reference to drawings. ^B.

Show it

Fig. 1 is a view of parts of a slide magazine projector according to the invention perpendicular to Projection plane,

FIG. 2 shows a section through the projector according to FIG. 1 along the section line II-II,

FIG. 3 shows a section through the projector according to FIG. 1 according to section line III-III,

4 shows a section through a slide magazine to be used in the projector according to FIG. 3 according to FIG Section line IV-IV.

In Fig. 3, a magazine guide 1 are schematically a Slide projector for a slide magazine 2, a lower prism guide 4 and an upper prism guide 5 for a, framed slide 3 in the picture stage of the projector and one between the magazine guide 1 and the picture stage 4, provided gap 6 for moving a slide 3 lying in the plane of the image stage in the magazine 2 into the image stage 4, shown by means of a slide change slide, not shown. Between the magazine guide 1 and the picture stage 4, 5 is a slide guide track 7 is also provided.

As can be seen particularly in FIG. 4, it is a slide projector for the use of magazines 2 in where the individual slide frames 3 are separated and approximately

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CV 2249.1 PP / MP

parallel to each other perpendicular to their direction of insertion into the magazine 2 are positively held by interlocking Ribs 3a or 2a and grooves 3b or 2b on slide frame and magazine. If such a magazine with slides 3 is inserted into a projector and is set when projecting a slide that it was inserted the wrong way round in the magazine and therefore reversed is in the picture stage 4, 5, so it is transported backwards into the magazine. To be so reversed To be able to rotate the inserted slide into its correct position, either the magazine 2 would have to be attached to the projector can be removed and the slide removed from the magazine in the slide insertion direction and inserted again in a rotated manner or there would have to be a device in the picture stage for removing and rotating a reversed slide are provided.

With the present invention, in a projector for magazines with perpendicular to the slide insertion direction in these form-fitting slide frames a simpler solution Ij for rotating or turning reversed slides

be created. It consists of a perpendicular to the plane of a slide 3 in the picture stage 4, 5 between the picture stage and Magazine by means of a handle 8 displaceable slide with a protruding arm 9a, on which a prism guide is self-supporting 9b is provided. The base of the prism guide 9b slides when the handle 8 and the slide are displaced on the slide guide track 7 perpendicular to the direction of movement of a slide frame 3. The apex 9c of the prism guide 9b runs parallel to the slide plane and is opposite to the slide guide track 7, starting from this next to the image stage 4, 5, such inclined that he, together with the prism guide 9b to the magazine ί

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CW 224-9.1 PP / MP

rises so far that a slide sliding on it does not get into the grooves 2b of the magazine 2, but over it Ribs 2a is pushed. Thus, by moving the handle 8 in the direction of the arrow 10, the slide 9 up to a stop 7a on the side of the slide guide track 7 moves, so is its inclined prism guide 9b, 9c in Movement path of a D ^ as 3 to be transported from the picture stage 4, 5 back into the magazine of the projector is actuated to move a slide back from the image stage into the magazine, so it pushes this slide 3 on the inclined prism guide 9b, 9c on the Ribs 2a of the magazine 2 lying in its guideway. In this position, the actuation of the interchangeable slide must be the same whether it is done by hand or by motor. Then it can stand upside down on the ribs 2a Slide (see the right slide in Fig. 4) removed from above the magazine 2 and magazine slot 1 and laterally corrected again the ribs 2a are placed. Now the magazine has to move by one switching step or one compartment width by which it has been moved out of the slide has been switched on from the picture stage, must be moved back by hand. With the now following Actuation of the change slide in the direction of the picture stage is then the slide standing on the ribs 2a back into the Stage 4, 5 pushed. Then either by means of the handle 8 or by letting go of the handle 8 below Action of the return spring 12 of the slide 9 together with the prism guide 9b, 9c against the direction of the arrow 10 on his another stop 7b is moved so that the prism guide 9b, 9c lies outside the slide guide track 7 again. To Consideration of the now right-sided slide 3 in the picture stage 4, 5, this becomes when the again is actuated The interchangeable slide is pushed back into the magazine 2 with its ribs 3a in the grooves 2b.

CW 2249.1 PP / KP

With slide projectors with a button that can be triggered Motoric slide / echsel must be ensured that During the changeover of a slide 3 standing on the ribs 2a, no new slide transport can be triggered. The slide 9 therefore has a recess 9d in which a switch 11a, Hb for the slide transport motor is located. One edge of the recess 9d is designed as a switching arm 9e. This is in the inserted into the slide guide track 7 Position of the prism guide 9b, 9c corresponding position of the Slider 9 the switch 11a, 11b free so that the latter is open and thus during the functional position of the Prisaienführung 9b, 9c all manipulations carried out by hand Need to become. The slide is used after the end of a rearrangement of an originally reversed slide pushed back into its non-use position against the stop 7b, so the switch arm 9e presses the switch contact 11b against the switch contact 11a, so that the switch 11a, 11b is closed again for further motorized slide transport.

Claims (4)

agfä-; geväert ag LEVERKUSEN CAMERA-WERK MÜNCHEN 10, 4. 1379 10-eh-ro CW 2249.1 PP / MP claims 1. Slide projector with a picture stage and a magazine feed for the use of pia magazines, in which the slide frames of the slides to be presented perpendicular to the push-in and push-out direction or to the transport direction in the projector are held in a form-fitting manner by interlocking interlocking elements of the magazine and slide frame edges, characterized in that a prism guide (9, 9b, 9c) can be inserted into the slide frame guide track (7) between the image stage (4, 5) and magazine guide (1) by means of a handle (8), the apex (9c) of which extends from the plane of the slide frame guide track (7) to over the height of the magazine-side form-fit elements (2a) from the picture stage (4) to the magazine (2) and runs parallel to the plane of a slide frame (3) located in the picture stage (4, ^), to optionally prevent the form-fit between slide frames and magazine when the slide frame (3) is returned into the magazine (2). 2. Slide projector according to claim 1, characterized in that the prism guide (9b, 9c) on a slide frame (3) that can be displaced perpendicular to the transport direction Slide (9) is arranged. CW 2249.1 3. Slide projector according to claim 1 or 2, characterized in that that the prismatic guide (9, 9b, 9c) is under the action of a spring (12) which pulls it out of the transport path seeks to pull the slide frame (3). 4. Slide projector according to one of the preceding claims, characterized in that stops (7a, 7b) door the inserted into or removed from the slide frame transport path their extended position of the prism guide (9b, 9c) are provided. 5 slide projector according to one of the preceding claims, characterized in that a switch (11a, 11b) in the path of movement of the prism guide or the slide (9, 9e) is arranged for a drive motor of an automatic or semi-automatic slide changing device, the in the position of the prism guide (9b, 9c) pushed into the slide frame guide track (7) through the prism guide or the slide (9e) is open. For this purpose 2 sheets of drawings