DE7015260U - NARROW FILM CAMERA WITH A COUNTER AND A FADE-IN ARRANGEMENT. - Google Patents

Description

AGPA-GEVAERT AKTIENGESELLSCHAFT 2J. April I97O

Leverkusen 10-unit jur

PK 301 / MK 670

Cine film camera with a counter and a dissolve arrangement

The invention "relates to a cine camera with a Counter and a dissolve arrangement, with the take-up reel or its drive when the film is forwarded and faded out can be stopped and the film is inserted into free cassette or camera rooms.

The invention is based on the object of automatically preventing a dissolve if the film r ^ -Ie The take-up reel has already been wound so far that there is no more space to insert anything that has not been wound up Film in the cassette or in camera rooms when film forwarding, so that damage, z. B. Compression or kinks, of the film are possible.

According to the invention, this object is achieved for a camera of the type mentioned in that a with the counter cooperating member is provided, which in certain positions of the counter on parts of the cross-fade arrangement

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acts and blocks it.

According to an embodiment according to the invention, it is proposed that that the G-Iied is a contact element in the transition and the film advance swivels the switch to be closed into a position in which the switch can no longer be closed is. The cross-fade arrangement preferably acts on one contact element and the link acts on the other contact element of the contact to be closed when fading and film advance.

According to another embodiment of the invention it is provided that the member is a shutdown of the take-up reel or the reel drive effecting element into a winding reel or its drive releasing it for winding Pivoted position or holds in this position. The element can be a manually operated fade switch or a 'locking element for the coil drive gein.

An arrangement according to the invention can be designed in a particularly simple manner if the link is on the counting disk or a cooperating gear part is arranged sector, the edge of which is on parts of the cross-fade arrangement acts.

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The arrangement according to the invention ensures that cross-fades are no longer possible when the film take-up reel is already so vullgewiekelt towards the end of the film * that the free cassette or camera spaces are too tight to push the film into them when moving forward during the cross-fade .

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

Pig. 1 is a schematic representation of an inventive Cine camera,

Pig. 2 another embodiment of an inventive Camera.

In a known narrow film camera 1, the lens with 2, a reversible electric motor with 3, a Battery with 4, an operating switch that interacts with the trigger, with 5, one that interacts with the motor 3, the Pilmspulenantrieb 6 and the gripper and Revolving diaphragm drive and a counter 7 driving gear with 8 to 14 designated. Between the gear 14 and the Pilmspulenantrieb 6 a Priktion is provided that the transport; a limited pile length by the gripper without winding the pilm on the take-up reel. The gear acting on the pulley 7 is so strong stocky, that a full revolution of the counting disk 7 is sufficient to measure a pilmlength.

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PK 301 / MK 670 - 4 -

The cameras according to FIGS. 1 and 2 are now designed in a manner known per se so that fades are made can be. A uberbienuBCfraluer- 15, the when set to cross-fading (see. Fig. 1) by a known transmission automatically triggers and controls a cross-fading process with film forward run and fade-out, film rewind and film forward run with fade-in. To enable the use of film cassettes, where the take-up reel against. Turning back is locked, when Mimvorlauf during the fade-out of the film reel drive itself locked against movement, so that when Film advance required, limited film length pushed into free cassette or camera rooms by means of the gripper and is not wound onto the take-up reel, i.e. for

■ Rewind is available. For this purpose, for example

"'. If the fade switch 15 or a cooperating with it

! Kendes transmission part have a tab 16 in the

!; Position for cross-fading and film advance on a spring-loaded

; loaded slide 17 acts with a ratchet 17a and

J- the locking tooth 17a with a locking toothing 6a of the FiIm-

■ coil drive 6 brings into engagement. Bun is the film reel

drive 6 secured against rotation while the gear

8 to 14 to the advance of the film due to the effect of the friction { can expire. After the end of the film advance and the fade-out, the fade gear, not shown, switches the

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lappen 16 or, if this vtf t is connected to the cross-fading clip, the latter in *: · ::. e ⁷ : wipe position in which the backwash and the renewed forward run with fade-in can take place. The slide 17 is released and, under the action of its spring 18, returns to its initial position shown in dash-dotted lines, so that when the film is advanced again the film reel drive is taken along with the fading and the film is then wound onto the take-up reel.

The invention is now based on the object of automatically preventing a dissolve when the film is nearing the end of the film the take-up reel is so fully wound that there is no longer any space left to loosely insert unwound film into the cassette while the film is being advanced, so that damage, e.g. B. compression or buckling of the film are possible.

To solve this problem, the counting disk 7 has a corresponding one of an already full film take-up reel Area a sector or ring sector 19. According to FIG. 1, the radial edge 19a of the sector 19 lies in the path of movement an arm 20 of the fade switch 15 or a bai fade and setting to film advance to be pivoted gear part. Now applies when the film spool is already

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is pretty full, the edge 19a cei your rotation in Clockwise on the edge 20, it adjusts the fade ^ holder 15 or the gear part in the opposite direction Clockwise so that the fade switch 15 is no longer set to fade and the pilm pulse drive 6 can no longer be stopped. If the motor 3 is operated, PiIm can only properly access the " Take-up reel wound, but no longer pushed into insufficiently available cassette space. at further proper winding of the film up to

At its complete end, the arm / lies around the circumference

of sector 19.

According to the Pig embodiment. 2 shows the fade switch 15 or a gear part cooperating therewith on an arm 22. When set to cross-fade according to Pig. 2, the arm 22 closes a switch 23 which poles the motor 3 to run forward. To the film spool; becomes the switch 15 or the transmission part is then automatically rotated into the position in which the switch 24 for reversing the polarity of the motor 3 is closed. Now is a contact element 23a of the Switch 23 is extended so that it is in the range of motion of sector 19. When the position of the counting disc 7 is reached, in which the pilm take-up reel is too full to insert a piece of film into free cassette spaces

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to <■:. ■ ■■ ■ «i'aen, ao the edge 19a pivots the contact element ^ a so far to the right that the contact element 19a is no longer even when the fade switch 15 is actuated come into contact with the other contact element 2? b can and thus crossfades are no longer possible. The f position in which over-fertilization is no longer possible,

is shown in dash-dotted lines in both figures.

Of course, further exemplary embodiments, not shown in the figures, are also possible for the sake of simplicity. This can stop the take-up reel at

Advance the film during the transition to any other

known way. The member 19 to prevent

j Cross-fades do not necessarily have to be designed as a sector

or be arranged directly on the counting disk 7, but can be part of a cooperating with the counting disk 7 gear, the gear being both a gear as j could also be a lever mechanism. Besides, that could

% Member 19 the disc 17 in a drive 6 releasing

Position and first move the cross-fade switch 15 with its mark 25 from the cross-fade position ⁿ Ü "to a position" A ", in which cross-fades are impossible, using the slide 17. Finally, the transmission for producing cross-fades could also be semi-automatic, so that for example after

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the F ⁴ InTOrIaUf and the dimming the tilarttckspulung can be done by hand soot or can or with the M.1 «- advance for the dimming a special hand hub must or came.

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Claims (8)

> »T I III β It · * AKTIENGESELLSCHAFT April 23, I970 Le ^ r-Jb. · ^ En 10-eh- j ar 670 claims 1. Narrow film camera with a counter and a Übeίolendordnung, wherein when film forward and dimming <££ e take-up reel or its drive can be stopped and the film is inserted into free cassette or camera spaces, characterized in that a with the counter (12, 13, 7) cooperating member (19) is provided, which in certain positions of the counter (12, 13, 7) acts on parts (20 or 23a) of the over-end arrangement (15, 16, 17 or 22 to 24) and blocks them. 2. Narrow film camera according to claim 1, characterized in that the member (19, 19a) has a contact element (23a) of a during the cross-fading and film forward movement to close the switch (23) pivots into a position in which the switch (23) can no longer be closed. 3. Cine camera according to claim 2, characterized in that the cross-fading arrangement on a contact element (23 "b) and the member (19, 19a) to the other contact element (23a) to be closed during the dissolving and film forwarding Act on the switch (23). • · ϊ • · ♦ • ■ · PK 301 / ΜΚ 670 - 10 - 4. Cine camera according to claim. 1, characterized in * that the member (19- 19a) ^ n the stoppage of the winding reel or the coil drive effecting element (20 * 15 '16, 17) pivoted to a take-up reel or the drive (6) for winding releasing position or holds in this position. 5. Narrow film camera according to claim 4, characterized in that » that the element (15) is a manually operable fade switch is, 6. Cine camera according to claim. 4 » \ 2L & zjrch that the element (15) is a locking element (17) for the PiIm coil drive (6). 7. Narrow film camera according to one of the preceding claims, characterized in that the member (19 * 19 & ^x on the counting disc (7) or a sector (19) arranged together with it on the gear part (19) -t ^ ^ een edge ( 19a) acts on parts (20 or 23a) of the cross-fade arrangement. 8. Narrow film camera according to one of the preceding claims, characterized in that a display mark (25) is connected to the part (20, 15) of the cross-fading arrangement to be actuated by the member (19, 19a), which display marks (Ü, A) are fixed to the camera. is movable. For this 2 sheets "