DE7020953U - FILM TRANSPORT DEVICE FOR PHOTOGRAPHIC CAMERAS. - Google Patents

Description

Kodak Public Company Stuttgart - cheeks Hedelfinger Strasse 54, 60 and 7o May 29, 1970

EM 785

Utility model registration

Film transport device for photographic

Cameras

The innovation relates to a photographic camera with a film transport device for using Films in which the film indexing step is determined by a single perforation hole, one of which is slidable mounted feeler element scans the film until it falls into a perforation hole and when it falls blocks the film transport, with the collapsed

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Feeler member through before the further transport of the Pilmes Camera actuator is moved out of the film perforation.

There are already cameras known in which the feeler member by actuating the shutter from the film perforation is pulled out. A device of this type is described in DT-PS 1 182 o55. With this device the trigger interacts with the feeler element via a lever provided with a bevel, whereby the Lever is inevitably coupled to the feeler member, whereby the feeler member is off when the trigger is actuated the film perforation is pulled out. An unwinding of the feeler element serves as a release lock and comes accordingly the position of the feeler element to the effect.

The triggering takes place in this camera against the force of a tension spring, which the feeler element in the direction Film also influences the friction conditions during the release. To a cheap and to achieve a constant release force, the parts sliding on each other must be very careful and elaborately processed so that the friction remains as small as possible.

7020S5318.2.71

EM 7 & 3 -: ■

From DT-PS 1 299 216 a camera with a feeler slide is known, on which at the same time a locking member is formed to block the film transport, the feeler slide in a direction perpendicular to the film surface is moved and is moved into the release position by means of the shutter release.

Here, too, the feeler element has to act against a spring force, primarily due to the friction conditions certain conditions are moved out of the perforation between the trigger and the feeler element.

An improvement in the friction conditions occurs in the device according to DBGM 6 752 858, where between the Trigger and the feeler element, an intermediate lever is arranged. However, there is an additional one with this device Part required, which results in additional costs and space requirements, although this intermediate lever no more. Function fulfilled.

The innovation is based on the task of a photographic camera by means of a space-saving arrangement to achieve a soft release of the parts with simple means.

It t

till! t I

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In a photographic camera with a film transport device for using films, in which the film switching step is determined by a single perforation hole, one being slidably mounted Sensing element scans the film until it falls into a perforation hole and the film transport when it falls locks, whereby the collapsed feeler member before the further transport of the film by camera actuating means the film perforation is moved out, 'this object is achieved according to the invention in that on the feeler member a trip lock under the action of a spring is rotatably mounted around a bearing rivet and the The release mechanism mounted displaceably on the housing is provided with a bevel, whereby the release lock is activated by the Cooperation with the bevel of the trigger moves the feeler element out of the film perforation.

An exemplary embodiment of the innovation is described in more detail with the aid of the drawings.

Show it:

1 shows an illustration of the device in the release position with the trigger depressed;

2 shows the device in the film transport blocking position.

EM 7b: - 5 -

The switching handle 1, which has a locking toothing la, is rotatably mounted on the housing 9. the Switching handle 1 acts via means not shown with a cocking slide which is only indicated in the overview 2 together, which is slidably mounted on the housing 9 by means not shown.

The feeler element 6 is provided with sliding surfaces 6e, 6f which guide the feeler element 6 within the guides 9b, 9c on the housing 9 in a displaceable manner. The movement of the feeler element 6 inevitably takes place at an acute angle to the film 5, pointing in the direction of the arrow "P".

The support plate 13 is attached to the housing 9 by means not shown. Between the housing 9 and the carrier plate 13 there is an interspace in which the feeler element 6 is also guided by means of an opening 9d on the housing side and a bend 6k of the feeler element 6. The feeler element 6 is under the action of the leg spring 7, which is mounted on a pin 14 on the housing and rests with a spring leg on a pin 15 on the housing side. The other spring leg engages a shoulder 6g of the feeler element 6 and influences the feeler element 6 in the direction of the arrow ⁿ A ⁿ .

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The feeler element 6 has an arm 6h which has a locking tooth which interacts with the locking toothing la 6b carries, as well as a bend 6c, which with the Cocking slide 2 cooperates. On the feeler member 6 is a bearing rivet 12 which is under the action of a spring standing release lock 8 rotatably mounted, which is also attached to the bearing rivet 12 and to the bend 8c of the release lock and the tab 6d of the feeler member engages.

On the support plate 13, the drive lever 3 is around the Bearing rivet 16 is rotatably mounted and is under the influence of a spring 17 which is attached to the bearing rivet 16 is and is supported with a Pederende on the housing-side pin 18, while the other Pederende ειη dem Lobe 3c attacks. The drive lever 3 has ein.Abwinkelung 3a, which interacts with the cocking slide 2 via means not shown.

The trigger 4 is on the front of the housing between Housing 9 and support plate 13 displaceably mounted by means not shown, the V rschlusslamelie Io is arranged on the carrier plate 13 so as to be rotatable about the bearing rivet 19.

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The mode of operation of the device is as follows: Pig's device. 1 is in the release position, i.e. the film transport is unlocked and the feeler member 6 is pulled out of the film perforation 5a. The trigger 4 is still in the depressed position.

If you let go of the trigger 4, then it moves under the action of a spring (not shown) against the direction of the arrow ¹¹ B "upwards into its starting position. The step 8b of the release lock 8 now moves under the action of the spring 11 under the Edge 4c of the trigger 4, with which the trigger 4 is blocked against actuation.

If the switching handle 1 is now moved in the direction of the arrow "C", then the film is transported by known means (not shown) in the direction of the arrow "F". At the same time the position shown 1 by means of the clamping slide over the angled portion 3a of the driving lever 3 of in FIG. ¹¹ moves D "to the position shown in Fig. 2 position" E ". The driving lever 3 slides there behind the hook 4a of the trigger 4 and is During the tensioning movement of the drive lever 3, its arm 3b leaves its contact with the tab 6d, whereby the tactile

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member 6 under the action of the leg spring γ In the Is moved in the direction of arrow "A". This movement is initially interrupted in that the bend 6c of the The feeler element 6 runs against the clamping slide 2. The locking tooth 6b is located outside the locking toothing la.

This interaction of cocking slide 2 and bend 6c results in the advantage that the camera functions can also be tested or demonstrated without an inserted film.

The cocking slide 2 moves during the switching movement only so far in the direction of the arrow ⁵¹ G "until the drive lever 3 is cocked. Then, caused by means not shown, it moves back again independently in the direction of the arrow" G " of the subsequent film switching movement. Because "the cocking slide 2 has run back, the bend 6c leaves its contact with the cocking slide 2 and the feeler 6 can continue its movement in the direction of the arrow ^w A ⁿ " until the feeler 6 on the PiIm 5 The locking tooth 6b is still outside the locking toothing la.

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The film transport by means of the film handle 1 «is required until the feeler element resting on the film 5 falls into a film perforation 5a, causing the latter Movement engaging locking tooth "6b falls into the locking toothing la and the film transport is interrupted.

As a result of the incidence movement of the feeler element 6 obliquely to the film 5 in the direction of the arrow "A", the film becomes pushed by the feeler element 6 by a small amount in the direction of the arrow "F". By this sliding movement an exactly constant image step is achieved. The movement of the feeler member 6 is ended when the Edge 6m strikes against wall 9a of housing 9. When the feeler element 6 falls into the film perforation 5a is the wider step-shaped part 8b of the release lock 8, which was previously under the edge 4o. of the trigger 4 was pulled out from under the trigger edge 4c.

Due to the inclined guidance of the feeler element 6 in the direction of the arrow "A", the release lock 8 mounted on the feeler member 6 is also moved laterally so that the release lock is now outside the edge 4c of the release 4, whereby the release 4 is actuated becomes free. The rounding 8a of the trigger lock 8 comes to rest on the wall 9a of the housing 9.

- Io -

EM 785

The camera is now ready to take a picture (see

4th
Fig. 2). If the trigger / is moved in the direction of the arrow ν les "B", then ^{the release lock 8 is pivoted in the direction of the arrow M} K "via the incline 4b of the release 4. Due to the angular design of the release lock 8, the the wall 9a supported rounding 8a the via the bearing rivet 12 with the release lock 8 connected feeler 6 against the direction of the arrow "A" pulled out of the film perforation 5s the action of the spring 17 leaves the drive lever 3 the position ¹¹ E ". The shutter blade Io is operated.

Characterized in that the feeler member 6 is pulled out of the film perforation 5a in front of the shutter opening and not at about the same time, the film 5 lies still during the recording and there is no motion blur on the exposed film 5.

The drive lever 3 moves up to the position ¹¹ D ″. The arm 3b, which runs against the tab 6d of the feeler element 6, moves the feeler element 6 back against the direction of the arrow "A ⁿ . At the same time, the ratchet tooth 6b also disengages from the

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Locking teeth la of the switch handle l (see Pig. 1). As soon as the trigger 4 is released, it moves against the direction of the arrow ⁿ B ⁿ upwards and the step 8b of the trigger lock 8 snaps under the action of the spring 11 under the edge 4c of the trigger 4, thus locking it against further actuation is.

The device is now ready for a new switching step.

The device enables a relatively soft release and is also space-saving and uncomplicated built up. In addition, the feeler element 6 is caused by too high a film perforation 5a that is torn Transport speed, returned to the starting position with certainty.

The inclined guidance of the feeler element 6 also largely prevents the film perforation from tearing if the film transport is not blocked immediately when the film is being transported too quickly, since the feeler element also moves in the direction of the arrow ⁿ F ^{M while moving in the direction of the arrow "A"} executes and thereby evades a film tension.

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Claims (9)

783-12 Claims for Protection 1. A photographic camera with a film transport device for using films in which the Pilmschaltstufe is determined by a single perforation hole, with a displaceably mounted feeler member the film scans until it falls into a perforation hole and the film transport when it falls locks, whereby the collapsed feeler member before the further transport of the film by camera actuating means is moved out of the film perforation, characterized in that on the feeler member under the action of a spring release lock rotatably mounted around a bearing rivet is and the shutter mounted displaceably on the housing is provided with a slope, the Trigger lock by interacting with the bevel of the trigger pulls the feeler out of the film perforation moved out. t · * t ♦ 4 EM 783 - 13 - ?. Photographic camera according to Claim I _3, characterized in that d. ß the release lock (8) is angular and the release lock (8) on the angular part has a rounding (8a), which for moving the feeler element (6) out of the film perforation (5a) with a wall (9a) of the housing (9) cooperates. 5. Photographic camera according to claim 1 and 2, characterized characterized in that the release lock (8) has a step (8b), which for the purpose of release lock interacts with an edge (4c) arranged on the trigger (4). 4. Photographic camera according to claim 1 to 5, characterized characterized in that the release lock (8) has an angled portion (8c) and the feeler element (6) has one Has tabs (6d), with the bearing rivet (12) formed as a fulcrum for the release lock (8) a spring (ll) is attached to the bend (8c) the release lock (8) and on the tab (6d) of the feeler element (6) engages, whereby the release lock (8) is influenced in the direction of the locking position. - 14 - EM 783 - l4 - 5. Photographic camera according to claim 1 to 4, characterized in that the housing (9) guides (9b, 9c) and the feeler element (6) rides Oleitflachen (6e, 6f), the sliding surfaces (6e, 6f) of the feeler element (6) with the guides (9b, 9c) cooperate, whereby the feeler element (6) inevitably under one in the film transport direction pointing acute angle to the film (5) is performed. 6. Photographic camera according to claim 1 to 5, characterized in that the feeler element (6) has an approach (6g) and the housing (9) has a pin (14) on which a leg spring (7) is arranged, wherein a spring leg rests against a pin (15) arranged on the housing (9) and the other spring legs with a shoulder (6g) of the feeler element (6) cooperates around the feeler element (6) to move against the film. 7. Photographic camera according to claim 1 to 6, characterized in that the Tastgli-ed (6) has a rag (6d) which is rotatable with an arm (3b) on a support plate (13) around a bearing rivet (l6) mounted drive lever (3) cooperates to reset the feeler element (6). - 15 - EM 783 - 15 - 8. A photographic camera according to claim 1 to 7, characterized in that the feeler member (6) with a Arm (6h) is provided which has a locking tooth (6b), and the switching handle (l) is provided with locking teeth (la), the locking tooth (6b) interacting with the locking teeth (la) for film transport. 9. Photographic camera according to claim 1 to 8, characterized in that the drive lever (3) has an angled portion (2a) which is used to transfer the Drive lever (3) into the clamping position with a clamping slide (2) mounted so as to be displaceable on the housing (9) cooperates. Io. Photographic camera according to claims 1 to 9 »thereby characterized in that the arm (6h) of the feeler element (6) has a bend (6c) which is connected to an on Housing (9) slidably mounted Spanish boom (2) during its clamping movement cooperates to switch and release the camera without an inserted To be able to perform film.