DE1807709U - SLIDE INTERCHANGEABLE FRAME. - Google Patents

Description

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Y / ilhelm Kunze Bünde / ", Yestf., 4.1.1960"

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The invention relates to one consisting of two Ranaien parts: the. Slide frame made of plastic with cover plates made of glass. ■■ i:

Such frames are known and they either have loosely inserted cover plates or those that are connected to the frame: a unit '..: ■. .;. form by encompassing them positively on at least two sides will . . , ·::. ■ '■■

Fixed cover glasses enable quick and ^easy:; : Insert; the fi ims tacke and this advantage is further enhanced by a ■ \ '; hinge-like connection of both frame parts '', increased. . '; ?:

The disadvantage of the framework described last is that the. They require increased manufacturing costs and that in the case of the M up to now known designs, the two frame parts cannot be opened fully λ by 180 °. · '^:; R, v ' . ■■ '■; ^: ■. - <^>;;

The object of the invention is to provide a slide frame _;; J; jf _{; ::} with which without increased manufacturing effort the advantage of frames ^: \ -; _? with fixed cover glasses and in which the, \ hinge-like connection is designed so that the two ;; Let the frame parts unfold by at least 180 °. .:.:;.

According to the invention, the object is achieved in that, taking advantage of the natural elasticity of the plastic: the glass cover panes are slightly larger in one direction than the storage bed provided in the frame part '?:>,

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and that the cover disk is supported by an elastically resilient counter bearing (4) is held against a constant counter bearing (3) in the frame and that, in addition, a flap protruding on both sides on the one Frame part prevents the hinge-like connection serving bearing pins (9) of the other frame part in the collapsed State Can be lifted from its storage.

Ih Figures 1-7 is an embodiment of the invention shown.

Show it:

Fig. 1 the hinge-like connected slide frame parts in the unfolded Condition with an inserted cover disk,

Fig. 2 parts like Fig. 1, but cut as seen from the side, 3 shows the hinge-like device in section,

Fig. 4-7 exemplary embodiments for the design of the elastic or resilient bearing of the cover disc.

The frame part C ^ I) of the slide frame consisting of two parts has the required external dimensions of the frame that is on one side for almost the entire 'length to accommodate the hinge-like Connection with the frame part (2) is interrupted. The remaining ends (10) on this side are each with a funnel-shaped bearing point (11) and an overlying one Provided with tabs (8). In these ;, Lagers te 11 en (11), the frame part (2) with its conical ends of the bearing pin (9) Slightly inserted due to the elasticity of the plastic namely then,; if; both .. parts lie flat! on a plate. (Figures 1 and 2). This is only a slightJ .. but for the rest of the way Handling sufficiently firm connection of both parts made. . If both parts are now folded together and the frame part (2) in known way with a protruding nose (12) on the edge (13) of the frame part (1) held, the effect on both sides:. brought rags (8) to the ends (10) that the in and of itself only slight ^ 2SD? nierärtige connection can no longer be solved.

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: 41h, 23/23. 1807709. Wilhelm Kmaei .- _w -. ^. ißünde (Westf.). I slide change frame », 18th! KZ.! ^

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The two frame parts (1 and 2) have, in a known manner, in addition to the required cut-out for the image field limitation, stops for film recording and a bed for a cover plate made of glass. While the camp bed lies on two opposite '^; The lower side is so large that the Beck disc (7) can be easily inserted, the bed is slightly smaller than the cover disc on the two remaining sides, so that the cover disc (7) cannot be easily inserted. On the one hand, the boundary forms a constant counter-bearing (3), while; on the other hand, the delimitation for the cover disk is formed by corresponding shaping of an elastic or resilient counter-bearing (4, 4a). In the simplest way: this can be achieved by arranging an opening (6) behind the web (4a) serving as a counter bearing, which allows the web to evade (Fig. 6). However, it is more advantageous to ;; K ;; if behind the resilient counter bearing (4) a thin and thus elastic, dust-protecting connection (5, 5a) remains with the frame part. The cover plate (7) is kept so large in the direction of the counter bearings (3 and A) that it can only be inserted by pushing back the resilient counter bearing (4, 4a) with the edge of the cover plate until it the opposite edge of the disc can be brought against the constant counter bearing (3). The resilient counter-bearing (4, 4a) now holds the cover plate (7) against the counter-bearing (3), albeit only to a limited extent, but firmly enough to allow the customer to insert the film piece quickly, easily and safely and to close both parts to enable. . : .ν, Γ.

It should also be mentioned that it does not matter which of the two opposite sides for the bearing of the cover disks to be held are used and that by this embodiment of the invention there is also a particular advantage that to cover slips somehow damaged at any point in time without difficulty can be exchanged.

Claims (2)

{42h, 23/23. 1807709. Wilhelm Knast- ,. ft ^ n ^ .; ί Bünde (Westf.). I Du-Wediselrahmea. lU.nfu. Jwe 57. 1.60. K 34036. (T. 4; line 2) i S claims for protection 1.) Slide change frame made of plastic with cover plates made of glass, characterized in that the cover plate (7) in the frame part by an elastic or resilient: ^ Counter bearing (4-, 4-a) is held and thus forms a unit that can be canceled at any time with the frame part. 2.) Slide change frame according to claim 1, characterized in that the elastic resilient counter-bearing (4, 4a) a component of the ■ the frame part itself. Slide frames according to Claims 1 and 2, characterized in that that the two hinge-like frame parts fold open by at least 180 ° let and that in the folded state by two protruding tabs (8) on the hinge side a firm, form-fitting connection of the two frame; mental parts is guaranteed. ; :