DE1869930U - ADAPTATION PIECE FOR FLASHING DEVICES. - Google Patents

Description

ofänacr Dafifm ^{Ux /}

APPARATEWERKE FÜRTH / ΒΔΥ. Recipient ίβίΛι. '· ^Υ ^. BItK

German Patent Office A 285 Dr.Kü / ba

M ii η ch 3 η 2 29 1. 1963

Adapter for flash units

The task of the adapter is to adapt a flash unit or a flash unit reflector without synchronous contact in the plug-in foot on cameras with synchronous contact in the device shoe. Such equipment shoes are specified, for example, in the draft draft DIN 19OOI.

The previously used Syiachron plugs for the flash units on which in the Stand-by condition of the device the voltage of the ignition capacitor (between 100 and 250 volts) are safe to touch. Different The matter lies when it comes from the Sinsteckfuß of the device or the adapter the mating contact protrudes from the synchronous contact of the device shoe. Ss must then in any case, the simultaneous touch this mating contact and the ground connection used as the second pole can be prevented. With the previous flash units, without synchronous contact This question does not arise in the foot, as it is always the inner pin of the sync plug that is not touched.

The innovation concerns an adjustment shoe that works even when the Flash unit that is not connected to the camera is safe to touch, Figures 1 and 2 show cuts through, an adapter made of insulating material, the contact piece in the Jliinsteckfuß probably touches can be, but its ground connection no longer when the adapter is attached to the flash unit or the reflector part accessible to touch. Figure 3 presents the solution of the same Task at. a metal fitting shoe with an insulated insert of synchronizing socket and ground connection. In Figure ^ f is an embodiment shown, in which the body of the adapter piece can be made from any metal or insulating material. At the synchronous contact in the foot is first a switch and a pen after pushing the foot into the device shoe of the recording camera Voltage applied. Even if the flash unit is switched on by mistake, there is simultaneous contact with earth and a live Part excluded.

In Figure 1, 1 is the insulating molded body of the adapter. This adapter has a plug-in shoe 2 for receiving

APPARATEWERKE FURTH / BAY.

recipient

date

sheet

German Patent Office M ü η c h e η 2

A 285 Dr.Mü / ba

January 29, 1963

of the flash device base and a base 3 for insertion into the device shoe of the camera, h is an inserted metal spring, which is inserted with its part 11 and the fork-shaped ends 5 in grooves of the two-part insulating body 1. The insulating body also contains the sync socket 8, 9 for using the sync plug of the flash unit. Pin 9 of the synchronizing socket is conductively connected to the resiliently arranged counter-contact 6 via a shim plate and wire 10. The socket casing 8, which cannot be reached from the outside, is again connected in an electrically conductive manner to the fork-shaped ends 5 of the spring k via the connection 16. Spring 4 and pin 6 can be touched when the extension piece is loose, but then cannot carry any tension. If the device base of the flash unit or the reflector is located in the plug-in shoe 2, the surface of the spring k is covered. The same happens with the outer shell 8 of the socket after the introduction of the live synchronous plug of the flash unit.

In Figure 3, the body 13 of the adapter is made of metal. The contact 6 which is under pressure from the spring and which is inserted with the inner pin 9 of the insulated contact is again isolated from the metal body 13 Synchronous socket 8, 9 is connected in a metallically conductive manner. The ground connection to the camera after inserting the foot 15 into the device shoe of the camera, which is metallic with the synchronous socket 8 inserted in an isolated manner Conductively connected pin 12 which is against the body of the adapter 13 is isolated.

In the embodiment of Figure Λ there is the body of the adapter made of metal. By the insulated or made of insulating material manufactured pin 16 is only after insertion into the device shoe of the camera / the Switch 18 is closed and the synchronous contact 6 inserted in an isolated manner (insulating sleeve 19) is connected to the live socket 9. The spring 4, ″ 5 is only used for holding.

Claims (3)

1) Adaptation piece for, flash units to adapt the one-piece flash. light device or the reflector housing with two-part devices Synchronous cable and plug-in foot without synchronous contact to a camera with Flashing light contact in the accessory shoe, characterized in that the adapter (1) or (13) in the foot (3) or .. (35) «.- a resilient one Counter contact (6) for. Flash contact in the camera's plug-in shoe with the foot C15) 'or a spring device (5) or (12) Establishes ground connection to the synchronizing device of the camera shutter and this contact device is made safe to touch. 2) adapter according to claim 1, characterized in that the body (1) is made of insulating material and when the adapter and the associated flash unit are combined, the earth connection (5) is secured in the foot (3) before training. 3) adapter according to claim 1, characterized in that the body (13) made of metal, the resilient contact (6) die Synchro socket (8, 9) to accept the sync plug of the flash unit and the ground connection (12) are used insulated, so that • Simultaneous contact even when the flash unit inserted into the plug-in shoe (Ί ^ f) of the adapter (13) is started up the resilient contact (6) and the ground connection (12) impossible is. k) Adaptation piece according to claim 1, characterized in that the body (T) is made of any insulating material or metal, the ground connection to the synchronous contact of the camera shutter is made via the metallic foot or, in the case of insulating material of the adapter, via the spring device (5) and the resilient one Mating contact via a switching device (16, 18) with the sleeve (9) of the. Synchronic socket (8, 9) is connected.