DE2204806C3 - Photographic camera with central or rotary shutter - Google Patents

Description

The invention relates to a photographic camera for taking pictures on film with one on different Times adjustable central or rotary lock as well as with a cam-equipped Drive shaft which is under the action of a drive spring connected to it at one end and controls the sequence of the individual movement groups during exposure in chronological order.

In the case of cameras of this type, known per se, it is necessary to move the stop for the sector actuation

3 4

_r . j and the caution to give the with holfeder7 compactness. The fixed stop ", as part of the

Pre-ignition of syncriroriized flash bulbs is one of those ragehSuses, is roit dem for the interaction

to give tjchmachmahchkeit that it determines without stop cam 5,

Functional Störumg the clamping process of the rotating- On the drive shaft 15 sit the retaining cams

allow the part. This requirement is with Korn- S 17, the drive cam 32 and the control cam 28.

plications connected. This is evident from the fact that their positions are unchangeable to one another

the well-known cameras in the relevant Gat- are, firmly on. These controllers 17, 32, 28 are, det

^do ß · ο ... _v . for a better overview, disaggregate in the drawing

So with your camera the jig must be shown pulled differently. All about the drive shaft

can even be provided twice, namely once at w 15 the elevator organ is 1 ?. rotatably mounted. The arrival

Tensioning a die-armed lever and other mainspring 16. also around the drive shaft

for tensioning the lock (utility model-15 built, is at one end with this drive shaft

font 6 ysi / 8 / J. _{15 and at the} other end with the elevator member 12

Another known camera is bound. This elevator organ 12, which is only effective on the circumference of the shutter when, for closing »5, has a toothing 13, is constantly with the on-runner of the over a geared sector under the action of a spring, tongue gear 14 a, Ub, Uc Spainngliedes connected from the area of a _train srad 19, which grabs pivot together with the film pin. The pen will then return to its transport device 10 through the elevator button 8 starting position and will be driven accordingly, so DAT during the whole FiImwiedcr in the path of movement d »r skid of the clamping ² ° transportation operation, the Antricusfeder member 16 are located on the way. As a result, the tensioning of the pre-tensioning device 12, 13, 14 a, 14 ft, formed by Gtie, is no longer possible, because neither the runner nor the Hc, 9 can be pulled up continuously. In the pen can easily evade (German the circular movement paths of the Steueror utility model 6 932 786). _{gan? 17 2} 8, 32 are stops and locks. the

The invention is based on ^{the object of designing a 3} S stops provided for work and a camera of the type mentioned at the beginning using the lever stop 38, the segment stop 33 avoiding the disadvantages indicated, and the release stop 27 being out of action during the recording via the drive shaft each supply tracks of their associated control elements, the movement group completely controlled and its control cam 28 and the drive cam 32, ausbenötigte work outside the actual loading mounted pivotably ³ °, while for holding the clearing, for example, subsequently, to remove the film - Drive shaft 15 certain holding lock 18 and transport lock and for temporarily locking the off stop lock 19 with the help of the trigger 20 against solrs can be made. In addition to the action of a spring 22 from or into the Bedie mechanisms for closure and film breakdown wegungsbahn of the associated control member, the Haltransport much easier and safer designed tenockens ³⁵ 17, can be guided. While the ^works . Stop lock 19 upon actuation of the trigger 20

According to the invention, this task is thus necessarily carried out in the path of movement of the retaining cam

triggers that the movement is brought outside of the movement paths 17, the stop lock is applied at the same time

gungsgruppcn a concentric with the drive shaft _o 18 from the movement path of this retaining cam 17.

or almost concentrically mounted, with the other ⁴ ° The transmission gear 14 a, 14 b, 14 c is through

Ren end of the drive spring connected elevator the pawl 11 secured against backward movement. Only in full

gan for winding the drive spring in such a rotatably wound position of the Aufiugsorgans 12 is the

is built to the drive shaft that with the shutter release 20 through a recess 25 in the cylindrical

voltage on the elevator body, neither the presence _{4J-cylindrical} part 24 of the lifting member 12 for loading

drive shaft, parts of these motion groups movement transverse to the axis are still released, while at

wcgt are. an intermediate position of the elevator organ of the fin-

Further advantageous embodiments of the invention ger 23 of the trigger 20 through the contact surface

result from the subclaims. 24 «of this cylindrical part 24 is blocked, where-

The invention is illustrated below with reference to FIG. ₅₀ by an effective actuation of the trigger 20

Drawing on an exemplary embodiment with Zen. Is excluded. A release device 27 ",

central lock explained. It shows 27 />, 27 c secures the drive spring in one end position

Fig. I the pulled apart, considering grain 16 against overturning and locks in the other

End of the camera with the housing torn open, ren end position at the end of the recording process

with completed spring winding, in front view, ₅₅ the trigger 20 against renewed effective actuation,

Fig. 2 shows the arrangement according to FIG. 1 in plan before the mainspring is tensioned again. This

sees. The locking mechanism is activated by the control cam

In both FIGS. 1 and 2, the same numbers 28 on the release stop 27 of the release device also mean the same or identical parts. 27 a, 27 b, 27 c achieved in that the securing-fixed parts of the camera housing and camera 6o member 30 in the movement path of the abutment part 21 walls are shown in section and hatched. of the trigger 20 is brought, at the same time the

The lens 2 is connected to the camera housing 1. The locking arm 37 of the pressure cam 26 of the elevator collar, whose beam path to the film plane is removed by organs. The other, the drive spring, the closure is covered or released 16 end position that secures against over-rotation. 6s release device 27 «, 27b, 27c is

In a known embodiment, the central lock comprises the pressure cam 26 on an engaging arm

tion reaches the verses nlußlaiuellen 3 a, Ib, 3c, the control 31 of the release device 27a, 27 / ?, 27c,

ring 4 with its stop cam 5 as well as the reverse A Scgmcntanschlag 33, from the drive cam

32 is controlled, actuates a controllable Hemmwerk development, under the action of the return spring 22, retracted

34, 35, 36, which is reversed to regulate the exposure times. Then the control cam 28 strikes against

cooperates with the lock, one of the release stop 27 of the release device

Inhibition of the drive shaft 15 takes place. 27 a, Hb, 27 c and gives the pressure cam 26

It should also be pointed out that the Drchbc-5 is free for one more revolution. At the same time will

Movement of the drive shaft 15 also to the Bctäti- the securing member 30 in the movement path of the

gen der Synchronkontaktc a connected trigger 20 brought to this against a renewed

Flashing light can be used. Triggering to lock the mainspring before winding.

The camera works as follows: If you hit the last stop of the Haltcocken 17 against the holding-drawn pretensioning device 12, 13, 14 α, 14 6, ίο lock 18 of the trigger 20 and thus limits the 14c, 9 actuated the trigger 20, the Haltcnok- rotation of the drive shaft 15. In this position ken 17 released by shifting the holding lock 18 is only an actuation of the preload input. The sequence reversal thus begins in the direction of the arrow, for which purpose the elevator button 8 is rotated in the direction of the arrow of the drive shaft 15. During this reversal. As a result, the film rotation is first transported through the suitably long 15. At the same time, the control cam 28, which is provided with the locking contact surface, is tensioned by the fact that the drive element 16 is again actuated on the stop 38 of the control lever 29 and brought to its full pretension. During the control ring 4 against the action of the return elevator movement, the Andriicknocken 26 pushes the spring 7, the lock open. Thereafter, the gene strikes the engagement arm 31 of the disengaging device drive cam 32 against the segment stop 33 of the ao 27 a, 27 b, 27 c, to the locking arm .37 back into the pre-regulated inhibitor 34, 35, 36, to between the movement path of the pressure cam 26 and the same actuation of the lever stop 38 by the release stop 27 of the release device control cam 28 and the release of this lever stop 27 a, 27 b, 27 c into the movement path of the control stop 38 from the long contact surface of this control cam 28 and the securing member 30 outside the cam 28 away, realize the set exposure time to 35 trajectory of the trigger element 21 of the trigger 20. Then the control cam 28 gives the He- to bring. In this position, the biasing lever stop 38 is free and is locked in both directions under the action of the direction, which is why only return spring 7 complete the exposure process. nor the trigger 20 can be operated.
If at this point in time the trigger 20 has already returned to the starting position, it should be mentioned that the invention is in no way restricted to a version with a centralized control system, so in the end. So could z. B. the control cam 28 with control strikes the control cam 28 against the release lever 29, control ring 4, locking lamellae 3 α, 3 b, impact 27 of the release device 27 a, 27 ft, 27 c and 3 c and the return spring 7 are replaced by one releases the pressure cam 26 for a further rotating disk which is firmly built on the drive shaft. At the same time, the safety 35 of a spout member 30 suitable in a known design is placed in the path of movement of the trigger 20 in order to bring the beam path from the lens to the film in order to cover it against being triggered again and to close it during the rotation of the drive spring lock. If the drive shaft is to be released temporarily at the time of the end of the exposure process, so that one of the various possible versions of the trigger 20 is still pressed at the point of completion of the exposure process, the holding 40 of rotary shutters will strike,
cams 17 against the stop lock 19 of the trigger 20 All other organs could in this variant and thus hold the drive shaft 15 firmly until it is maintained and the same work - as released by the trigger 20 and in the initial position - perform.

1 sheet of drawings

Claims (12)

Patent claims: 1. Photographic camera for recordings on FUm, with a central or rotary shutter that can be adjusted to different times and with a cam-equipped drive shaft that is under the action of a drive spring connected to it at one end and the sequence of the individual movement gps in the »exposure in time sequence control, characterized in that outside the paths of movement of the movement groups concentrically or almost concentrically mounted to the drive shaft (15) connected to the other ¹ S end of the drive spring winding device (12) for winding the drive spring (16) in such a manner rotatable with the drive shaft ( 15) is constructed so that, in the event of a short-circuit voltage, neither the drive shaft (15) nor ^ao parts of these groups of movements are moved via the elevator member (12, 13). 2. A photographic camera according to claim 1, characterized in that the elevator member (12) has a toothing (13) which by means of a transmission gear (54 a, 14 b, 14 c) ^a5 via an elevator wheel (9) in such a way in constant connection with the film transport device (8, 10) stands that the drive spring (16) during the film transport process üLxr a through the elevator member (12, 13), the transmission gear (14 β, 14 b, 14 c) and da-3 winding wheel ('^) formed pretensioning device (12, 13, 14 · α, * 4ft, 14c, 9) can be pulled up. 3. Photographic camera according to claims 1 and 2, characterized in that the drive spring (16) a built around the drive shaft (15), intended for a full, effective rotation, is prestressable torsion spring. 4. A photographic camera according to claims 1 to 3, characterized in that on the one hand the drive shaft (15) apart from the control members (28, 32) carries a control member designed as a holding cam (17) limiting its rotation and on the other hand a control member via the _4S trigger ( 20) is provided in the movement path of this retaining cam (17) feasible retaining lock (18), which only when the drive spring is drawn (16) can be arbitrarily brought out of the locked position by the operator using the trigger (20). 5. A photographic camera according to claim 4, characterized in that in addition to the holding lock (18) a further stop lock (19) which can be moved via the trigger (20) is provided, which in the effective actuation of the trigger (20) inevitably so in the path of movement of a cam (17) of the drive shaft (25) is movable so that the drive shaft (15) rotates directly after closing the lock (2) and stopped in this stop division until the release of the Trigger (20) is held. 6. Photographic camera according to claims 4 and 5, characterized in that the holding lock (18) and the stop lock (19) Tsile des Trigger (20) and with it, transversely to the drive shaft (15), are movable. 7. Photographic camera according to one of claims 1 to 6, characterized in that the 40 triggers (20) during the elevator and transport process via a finger. (23) is blocked against effective actuation by the contact surface (24 0) of a rotatable part (24) of the pretensioning device and a recess (25) of this rotatable part (24) protrudes a finger (23) and thus an effective actuation of the trigger (20) only in the end position of this pretensioning device, corresponding to the fully wound drive spring (16) 8. Photographic camera according to one of claims 1 to 7, characterized by a die Pre-tensioning and film transport device (10) on the transmission gear to prevent reverse movement (14 a, 146, 1.4c) and a pressure cam (26) on the winding wheel (9), each of which at the end of the elevator movement to prevent the drive spring (16) from overwinding The locking arm (37) strikes. 9. Photographic camera according to one of the preceding claims, characterized in that that the locking arm (37) via eir.e release device (27 a, 27fc, 27c) by a control cam (28) of the drive shaft (15) is controllable in such a way that it is at the end of the recording process when the trigger (20) is no longer pressed in from its locked position on the pressure cam (26) to be led. 10. A photographic camera according to claim 9, characterized in that the release device (27 α, 27 b, 27 c) has a securing member (38) which for the purpose of blocking the trigger (20) inevitably in the path of movement of an abutment part (21) of this trigger (20) is performed when it is actuated by the control cam (28) of the drive shaft (15) via the release device (27 α, 27 b, 27 c). 11. Photographic camera according to one of the claims 8 to 11, characterized in that an engaging arm (31) is connected to the locking arm (37) is through which the locking arm (37) in the course of the winding and film transport process as a result of the pressure cam (26) running against this engagement arm (31) in the path of movement this Andrücknockens (26) is performed. 12. Photographic camera according to any of the preceding Claims, characterized in that in the train or tracks one or more cams of the drive shaft (15) one or more switching or drive elements to operate various auxiliary devices such. B. flashlight detonator and / or a Front drive are built up (not shown).