DE7303121U - SLIDE PROJECTOR FOR A ROUND MAGAZINE - Google Patents

Description

The invention relates to a slide projector for a round magazine For radial slide transport with a horizontal magazine space that is at least partially sunk into the projector.

Projectors of this type are already known. The invention is based on the object for such a projector to create a particularly inexpensive and space-saving cooling arrangement.

It is therefore proposed according to the invention that a fan be located below the magazine space and essentially coaxially is arranged for the location of a magazine, wherein the intake of the fan next to the projection beam path and is preferably provided next to the picture stage of the projector. It is also provided that the suction openings in the projector for the air supply in the side wall remote from the fan and parallel to the optical axis and / or are provided in the area of the surface of the projector adjacent to this side wall, ao that

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the suction of fresh air bypasses the projection lamp and crosses the projection beam path. For a compact design, it is advantageous if for the fan and for the Slide transport is provided with its own electric motor, the approximately symmetrical to an axis that goes through the fan axis and is parallel to the projection beam path are arranged, wherein a transformer is arranged between the motors.

The coaxial arrangement of the fan and the round magazine in a projector make a special one on the one hand favorable utilization of space and thus a very small construction achieved, on the other hand it can also use the Place the fan intake in such a way that optimal cooling is achieved in the projection window of the projector and the cold air directly across the projection beam gear is sucked in.

The invention is explained in more detail with the aid of drawings. Show it

Fig. 1 is a section through an inventive

Projector through the mcgazine axis and across the Projection beam path,

FIG. 2 shows a view of the projector according to FIG. 1 from above in a partially broken away state.

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PK 385 / MK 796

A projection lens 2, a projection window 3 and an exposure system 4- are provided in a projector 1, which determine the projection beam path ". The Projector 1 is intended for use in conjunction with a round magazine 5 ", with the slides radial to the Magazine 5 transported to the outside into the projection window 3 will. A preferably round magazine space 6 is therefore provided in the projector 1.

According to the invention, there is now a fan 7, which is about the rotary knife of the magazine 5 has, arranged below the magazine space 6, separated by a housing wall 8, so that it Requires a minimum of space compared to its size. The suction port 9 is in the top the wall 8 and directly to the projecting window ^ "is provided adjacent. In addition, the suction openings 10 in the projector 1, which are in a known manner through Compartments are partially covered, provided on the side wall 11 of the projector 1, which is parallel to the beam path and is located at a distance from the fan 7, as well as on the area of the upper string 12 adjacent to this side wall 11, Because of this position of the intake connector 9 and the intake openings 10 is achieved that the cooling air from the side and from above transversely to the projection beam path on the Lamp 4 and the projection window 3 and that thereby optimal cooling is achieved. To the particularly

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PK 385 / MK 796

Partial spatial arrangement therefore comes another "special" good cooling Where the openings 13 for ejection the hot air are provided is only of secondary importance. For example, you could be arranged on the front of the projector 1.

Around the magazine space 6 and the fan housing 8 easily accessible To do this, a cover 14 is expediently provided on the projector 1. With regard to a small spatial configuration, it is also advantageous to have two small electric motors 15 and 16 to be provided, which are approximately symmetrical to a parallel to the optical axis through the fan axis (18) extending axis 17 lie. A motor 15 "For example, drive the fan 7 via a belt drive 19, while the other motor 16 via a gearbox the slide transport and magazine transport gear 21 drives. The transformer can then be positioned approximately between the two motors 15 »16 22 must be built into the projector 1.

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Claims (3)

Expectations 1. Slide projector for a round magazine for radial slide transport with an at least partially sunk in the projector, horizontal magazine space, characterized in that a fan (7) is arranged below the magazine space (6) and essentially coaxially to the position of a magazine (5). 2. Slide projector according to claim 1, characterized in that the suction port (9) of the fan (7) next to the Projection beam path and preferably next to the image stage (3) of the projector (1) is provided. 3. Slide projector according to claim 1 and 2, characterized in that that the suction openings (10) in the projector for the air supply in the fan (7) remote, for side wall (11) parallel to the optical axis and / or in the region of the side wall (11) adjacent to this side wall (11) 7S4I121.MUI I I I t «t PK 385 / M 796 Surface (12) of the projector are provided so that the suction of fresh air goes past the projection lamp (4-) and crosses the projection beam path. 4 ·. Slide projector according to one of the preceding claims, characterized in that for the fan (7) and. a separate electric motor (15 »16) is provided for each slide transport, which is approximately symmetrical to a going through the fan axis (18) to the projection beam path parallel axis (17) are arranged. 5 · slide projector according to claim 4, characterized in that a transformer (22) between the motors (15i16) is arranged. 1 sheet of drawings