DE7932232U1 - CONNECTING DEVICE FOR CONNECTING AN ELECTRONIC FLASH DEVICE TO A CAMERA - Google Patents

Description

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ZtM connection process Connection of an electronic flash unit with a camera

description

The invention relates to a connecting device for connecting an electronic flash unit with a camera Attachment to a plug-in shoe located on the camera / wherein the connecting device is connected to one with the flash unit connected contact socket can be connected *

An electronic flash unit is used to illuminate scenes that are recorded with a photographic camera should. The flash unit is connected via a connection pre- ^ direction connected to the camera in order to enable the correct functional sequence between camera and flash unit, for example / to synchronize the emission of the flash light with the opening of the camera shutter.

A known connecting device consists, for example, of a plug-in foot that is permanently mounted on the flash unit and which has a ... a shoe on the camera can be clipped on is. This connecting device enables a two-pole electrical connection, one via the so-called ground contact and the other over the Synchröhköntakt ^ Öie plug feet and steeks are standardized so that electronic flash units equipped with such plug-in feet can be used with everyone Camera can be connected / which has a standardized plug-in shoe.

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In the meantime there are; eä cameras, the function of which in connection with electronic flash units has been eirWäiteift beyond the Synöhiföniäatiön with the KämerävergöhlUß * 2 U of these extensions belong to the example the display of the flash readiness in the KäffleräääUnahi ¹ / the automatic switching of the KämerävergöhlUß by a necessary for flash operation to the Signal from the flash unit or the activation of the flash limitation device by means of a control pulse / which the exposure measuring system of the camera delivers to the flash unit must be allied.

These additional extensions give way to different ones Camera types differ from each other / so that the specially equipped Electronic flash units can only be used for the associated cameras.

The invention is based on the object of connecting devices to create, in a simple way, the connection between such an electronic flash device and everyone these different camera types in any change possible.

According to the invention, this object is achieved by the features of Claims 1 or 2 solved.

The advantages achieved by the invention are essentially to be seen in the fact that the connecting device according to the invention an electronic flash unit can be used for a variety of specialty cameras. It just has to the connection device belonging to the respective camera can be chosen to connect the flash unit zi5. This results for the flash unit manufacturer larger series of the same flash unit type and for the Trade a lower inventory.

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lift the following, the invention based on single lent a ÄUöfühtfUng "SWEG illustrative drawings in greater detail, FIG

r 'Figure 1 a söhemätisöhe representation, like the örfihdüngs ^

I appropriate connection preparation for connecting a BÜtz

] "can be used with different cameras and

i; Figures 2 and 3 details of a Bütz device side

* \ Kontäktsoökels or a connection

I tüng according to the invention *

¹ I shows an electronic flash device 1 as well as I, three different cameras 17a, 17b / 17c each with an I plug-in shoe 8a / 8b / 8c / its contact elements 11 (ground contact and synchronous contact) with one in all cameras 17a, 17b / 17c are connected to the same existing switch 13, which is coupled to the camera shutter, while

^ the contact elements 12a / 12b, 12c, which are located on each camera

I 17a, 17b, 17c at another point of the plug-in shoe 8a /

I 8b, 8c are located, with differently configured switching ^ i | circles 14a, 14b, 14c are connected.

'' The electronic flash device 1 contains but one for all Camera types commonly required circuit 2 for the ignition of the flash tube further circuits 3a, 3b, 3c,. ^ Ie have to fulfill different electrical functions for the different cameras 17a, 17b, 17c and with them Cameras 17a, 17b, 17c associated with contact elements 5a, 5b, 5c of a contact base 6 fastened to the flash device 1 are connected, while the circuit 2, which is required in common

4 with Kor.taktelemente 4 * of the contact base 6 in connection

I stands.

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ff On this contact base 6 is for each of the different

|; Cameras i7a, l7b, 17c have a special connection device

§ 7a, 7b / 7c can be connected, which in the plug-in shoe 8ä, 8b, 8c

I of the associated camera i7a, i7b, 17c can be inserted. on

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the side of each connecting device 7a, 7b, 7c engaging in the plug-in shoe 8a, 8b, 8c are contact elements 9, 10a, 10b, 10c attached, the position of which corresponds to the arrangement of the contact elements 11, 12a, 12b, 12c in the plug-in shoe 8a, 8b, 8c corresponds to the respective camera 17a, 17b, 17c and the contact elements engaging in the contact base 6 15, 16a, 16b, 16c are connected, the position of which corresponds to the arrangement of the contact elements assigned to the respective camera 17a, 17b, 17c 4, 5a, 5b, 5c.

The dash-dotted lines indicate which contact elements can be connected to one another.

In Figure 2, a contact base 6 is shown, the lower cover 25 has slots 26 behind which there is a cylindrical compression spring 21 each, at the lower end of which about half of the last turn is bent at right angles and through the respective slot 26 protrudes, while the upper end on one formed as a contact surface 22 end of a conductor track 23 a preferably flexible printed circuit board 24 rests, the other end with the associated flash device side Circuit 2, 3a, 3b, 3c is connected.

In Figure 3, a connecting device 7a, 7b, 7c is shown. The contact elements 15, 16a, 16b, 16c engaging in the contact base 6 are used as contact surfaces formed and located on one side of a so-called printed circuit board 31. They are over through-contact bores 33 and possibly over Conductor tracks 34 connected to contact surfaces 32 on the other side of the circuit board 31, with between these Contact surfaces 32 on the one hand) and the contacts elements 9, 10a, 10b, 10e engaging in the plug-in shoe 8a, 8b / 9 * 3 on the other hand, cylindrical spiral compression springs 35 are arranged are.

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Claims (5)

! ·· !. 1 1 .V ", i R Noy, 1873 METZ Apparatewerke Inh. Paul Metz, Braun Aktiengesellschaft Connection device for connecting an electronic flash unit with a camera. Protection claims 1. Connection device for connecting an electronic flash unit with a camera by attaching it to a shoe located on the camera, the connecting device can be connected to a coitakt base connected to the flash unit, characterized in that that it is designed as a compact plug-in foot (7a, 7b, 7c), with you engaging in the contact base (6) Contact elements (15, 16a, 16b, 16c) are attached to one side of the plug-in foot (7a, 7b, 7c), preferably on the side opposite the side engaging in the plug-in shoe 8a, 3b, 8c). 2. Connection device for connecting an electronic flash unit with a camera by attaching it to a shoe located on the camera, the connecting device Can be connected to a contact base connected to the flash unit / characterized by that the connections of the contact base (6) engaging contact elements (15, 16a, 16b, 16c) with the Contact elements (9, 10a, 10b / 10c) on the side engaging in the plug-in shoe (8a, 8b, 8c) via wires of a flexible cable run. ö 7821 a • · H, Nov. 1870 3. Connecting device according to claim 1, characterized in that that each of the engaging in the contact socket (6) Contact elements (15, 16a, 16b, 16c) together with the associated contact element (9, 10a, 10b, 10c) on the one engaging in the plug-in shoe (8a, 8b, 8c) Side is designed as a one-piece, preferably self-resilient contact element. 4. Connecting device according to claim 1, characterized in that that in the contact base (6) engaging contact elements (15, 16a, 16b, 16c) of the connecting device (7a, 7b, 7c) are designed as contact surfaces on one side of an insulating plate (31) applied and conductive with contact surfaces (32) located on the other side of this plate (31) are connected, which in turn with the contact elements (9, 10a, 10b, 10c) on the in the plug-in shoe (8a, 8b, 8c) engaging side of the connecting device (7a, 7b, 7c) are connected. 5. Connecting device according to claim 4, characterized in that that the insulating plate (31) is a so-called printed circuit board and that the conductive Connections of the contact surfaces (15, 16a, 16b, 16c) of the one side with those (32) on the other side of the plate (31) via plated-through holes (33) and optionally run over conductor tracks (34). G 7821 a ill «, ;; p VerMndUn ^ svoirriohtUng fiäöh one of the claims 4 and | 5 / däduföh gekennzeiehnet / that the connections gWischefi f defl iiöntäktfläöhen (32) on the camera (^ 7ä / 17b / | 17Θ) facing side of the insulating plate (31) and | the cofi takt elements (11 / I2ä / 12b / I2ä) in the Stedksöhuh i (8ä / 8b / 8ä) via resilient contact elements or _{ via the Köntäktelemertte (11 / I2ä / I2b / I2ä) in the plug ^ | shoe (8a / 8b / 8ä) touching contact pieces (9 / 10b) p run away / which under the pressure of a spring (35) / forward | zügweise spiral spring '/ stand, - between each con- | tact piece (9 / 10b) and the associated contact surface | (32) is arranged ₄ p 7 »Connecting device according to claim 2, characterized ^ draws / that they intervene in the contact (6) ^
the contact elements (15, 16a> 16b / 16c) of the connecting device (7a / 7b / 7ö) are designed as contact surfaces, - </ which are on one side of an insulating plate jj (31) applied and with on the other side of this | Plate (31) located contact surfaces (32) conductive f are connected, which in turn with the contact elements; (9, lOä, 10b, 10c) on the in the plug-in shoe (8a, 8b, \ 8c) engaging side of the connecting device (7a, 7b, 7c) are connected. Connection device according to claim Ί, characterized in that the insulating plate (31) is a so-called printed circuit board and that the conductive
Connections of the contact surfaces (15, 16a, 16b, 16c) of the
one side with those (32) on the other side of the
Plate (31) via through-coactivated bores (33) and
optionally run over conductor tracks (34); G 7821 a