DE7640081U1 - IABETRACHTER OR SLIDE PROJECTOR - Google Patents

Description

AGFA-GEVAERT AG

LEVERKUSEN CAMERA-WERK MUNICH

December 21, 1976 10-eh-ro PK 483 / MK 901

Slide viewer or slide projector

The invention relates to a slide viewer or slide projector with a receiving space for loosely stacking framed slides to be presented and a stacking space aligned with this for loosely stacking of the presented slides and with a change slide, which has a carrier edge on the side of the recording space for moving of the slide that is closest to him in each case the projection window and at a distance therefrom, which corresponds to at least one slide width, one against the stacking space for the presented slides has pivotable driver lever for taking a slide located in the presentation window into this stacking space, the driver lever when the slide is moved into the presentation window through a slide in the presentation window '~~ lying slide swiveled out of its driving position for this, is rotated by a stop at the end of this movement behind the edge of this slide facing away from the stacking space and when the slide is moved out of the projection window this slide

7640081 3U3L77

PK 483 / MK 901

takes with it into the stacking room and with the movement of the Change slide from the projection window brought the slide from the recording room into the projection window into a projection level arrives, which lies on the side of the change slide facing the stacking space. In these known arrangements can The receiving space and the stacking space lie one above the other vertically or at an angle to the support surface. But you can also do it horizontally one behind the other, with a slide to be presented by a spring after moving the slide switch back must be pressed into the demonstration level in order to be taken into the stacking room the next time the slide switch is operated to be able to.

The known arrangements of this type have the disadvantage that a slide to be moved from the receiving space into the projection window can tilt into the projection window with incomplete movement of the interchangeable slide without the slide already located there being removed from the projection plane by the driver lever because the driver lever is still could not swing in behind the edge of this slide lying in the projection window. This can lead to slides jamming in the projection window and disruptions to their presentation.

The invention is therefore based on the object of designing a slide viewer or projector of the type mentioned at the beginning.

7640081 31.0177

PK 483 / MK 901

form that even with incomplete actuation of the change slide only one slide remains in the projection window.

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

The invention is explained in more detail with reference to a drawing. Show it

1 shows a section through parts of a viewer according to the invention during the transport of a slide into the projection window,
Pig. 2 the arrangement according to FIG. 1 during transport

of a slide from the presentation window. 3 and 4 show parts of further exemplary embodiments. To the side of the receiving space 2 and the stacking space 4 are a tree 6 for the lighting, not shown, and a shaft 7 'through a

7640081 310177

i · <■ ■

• ft »

il

-4-

PK 48? / MK 901

viewing optics, not shown, is completed above, and a demonstration window is arranged between the two, which is determined by housing cutouts 1a, Ib. Above the housing cutout 1b is a translucent plate 8, the surface of which determines the viewing plane on which a slide must lie in order to be clearly seen through the viewing optics. Between the housing wall 1c carrying the cutout 1a and the plate 8 there is a distance which is sufficiently large to insert a slide changing slide 9, which protrudes through a housing gap 1d and is provided between the receiving space and the stacking space 4-, and to insert the slides switch.

The interchangeable slide 9 has, on its side facing away from the projection window, on its surface facing the receiving space 2, a driver edge 9a which, in its position pulled out of the housing 1, engages behind the edge 3a of the lowest slide of the stack to be presented facing away from the projection window and this when it is pushed in the slide into the housing in the demonstration window. On the projection window side next to the driver edge 9a, a shallow depression 9b is provided in the interchangeable slide 9, thus also arched slide frames

7640081 31.0177

PK 483 / ΜΚ 901

so rest on the alternate slide 9 that the driver edge can safely grasp it. Between the recording room 2 and the projection window are also not shown, known means such. B. a resilient Bolle or resilient inclined surface, is provided to prevent that more than one slide 3 is taken into the projection window by the change slide 9.

At a distance from the driver edge 9a, which is greater than the width of a slide, there is at least one recess 9c in the Alternating slide 9 attached, in which a two-armed driver lever 10 is rotatably mounted about an axis 11. The driver lever 10 can assume two preferred positions, one at one of its arms 10a protrudes over the slide surface into the area of a slide to be moved into the projection window, while his other arm 10b is supported on the slide 5 lying on the plate 8, and one in which a housing-fixed inclined surface 12 of which one arm 10a is pivoted under the surface of the slide 9 and its other Arm 10b behind the edge 5a of the facing away from the stacking space 4 presented slides 5 intervenes. If the slide 5 presented here is very thin, the step 10c of the driver lever 10 engages slightly over its surface (see FIG. 2), so that it moves when it is moved

7640081 02/31/77

PK 483 / MK 901

into the stacking area 4 · do not tip over and a proper Can prevent stacking by tilting. A thicker slide, on the other hand, is placed between the plate 8 and the interchangeable slide 9 or its edge 9d secured against tipping until it is completely over the stacking space 4 · and falls into this vertically.

The mode of operation of the arrangement is therefore as follows:

If the interchangeable oil slide 9 is removed from the housing 1 as far as possible pulled out, io engages its driver edge 9a on the edge 3a of the slide 3 lying at the bottom in the stack to be presented. When moving the change slide 9 in Richteng the Arrow 13, the lowermost slide 3 is carried along by the driver edge 9a into the projection area. The Arm 10a through the presented slide 5 lying on the plate 8 in the area of the slide 3 to be presented, namely in front of the Edge 3 ″ b facing the projection window is pivoted. Is now the change slide 9 is not pivoted completely into the projection window area, but prematurely again in the opposite direction of the arrow 13 is pulled out of the housing 1, the slide to be transported into the projection window cannot fall into the former and lead to deadlocks, but it is returned to the receiving space through the arm 10a

7640081 310177

III

PK 483 / HK 901

for the slides to be shown. Becomes the change slide 9, on the other hand, moves up to the stop 12 in the direction of arrow 13, the stop 12 pivots the arm 10a under the slide surface so that the slide 3 When the slide 9 is bent back, it falls onto the plate * 8

2. At the same time, the arm 10b, possibly with its step 10c, engages the edge 5s facing away from the stacking space 4. of the presented slide 5 and moves it in the already described Way into the stacking room for the slides shown.

Of course, the inventive design of the Driving lever 10 not on change slide 9 for slide viewer mi + - limited vertically stacked slides, but look for projectors and especially for them those with horizontally arranged slide stacks can be used.

In addition, other exemplary embodiments are also possible. So the driver lever 10 can be under the action of a spring 15, which allows it to collapse after sliding off the slide 5 presented behind its edge 5a facing away from the stacking space. Furthermore would be it is possible to provide the driver 10 with the tabs 10a, 10b on a resilient arm 9e of the interchangeable slide 9. -8th-

7640081 03/31/77

Claims (6)

• · · r ι · • ■ · · ι till · · »· t · PZ 483 / MK 901 December 21, 1976 10-eh-ro claims 1. Slide viewer or slide projector with a recording space for loosely stacking framed slides to be presented and one herewith aligned stacking space for the loose stacking of the slides presented and with a change pusher that is on the Side of the receiving space a driving edge for moving the slides to be shown closest to him in the projection window and at a distance from it, the corresponds to at least one slide width, a carrier that can be pivoted against the stacking space for the slides presented Having a slide located in the projection window into this stacking space, the driver when the Change slider into the demonstration window through a slide lying in the demonstration window from its driving position for this pivoted and rotated at the end of this movement behind the edge of this slide facing away from the stacking space and at the movement of the interchangeable slider from the presentation window takes this slide into the stacking room, and when the interchangeable slider is moved out of the presentation window, the eus dem Slide brought into the recording room in the projection window 7640081 31.0177 PK 483 / MK 901 Presentation level arrives, which lies on the side of the interchangeable slide facing the stacking space, characterized in that the driver (10) has a tab (10a) which, when the driver is pivoted, through a slide (5) located in the presentation window (8) behind the the projection window (8) facing edge (3b) of a slide (3) moving into the projection window (8). 2. Slide viewer or slide projector according to claim 1, characterized in that the driver (10) is designed as a lever is and that the tab (10a) when the driver lever (10) is pivoted through a stop (12) into a recess (9c) of the interchangeable slate (9) from the area of the channel (3b) of the slide to be presented can be rotated. 3 · Slide viewer or slide projector according to one of the preceding Claims, characterized in that the driver lever (10) is two-armed ausabild ^ t, the two arms (10a, 10b) protrude alternately over the change slide (9) to opposite sides of the same. 7640081 03/31/77 PK 483 / MK 901 4. Slide viewer or slide projector according to one of the preceding claims, characterized in that the arm (10b) of the driver lever (10) facing the stacking space (4) has a step (10c) for guiding a thin slide (5) straight into the stacking space (4) having. 5. Slide viewer or slide projector according to one of the preceding Claims, characterized in that the interchangeable slide (9) on the receiving space side between the driver edge (9a) and the Driving lever (10) has a shallow depression (9b). 6. Slide viewer or projector according to one of the preceding claims, characterized in that the driver lever (10) is under the action of a spring (15) which seeks to rotate it into the driver position for a slide (5) presented. 7- slide viewer or slide projector according to one of the preceding claims, characterized in that the driver (10) is molded onto a resilient arm (9e) of the interchangeable slide (9). For this purpose 2 sheets of drawings 7640081 31.0177