DE3026341A1 - Connector for electronic circuits on camera - is made from flat cable with local spring reinforcement and location - Google Patents

Abstract

The flat connector (1) from the various circuits terminates in an end with a series of fingers with one conductor per finger. A connection point (2a-5d) is made near the end of each finger. At this end the flexible cable is locally reinforced by a suitably shaped insulation strip with spring properties (6). It is attached to the back surface of the cable, for example with adhesive, and located on part of the camera body (7). The connection points on the fingers are cranked to give an interference fit with moving contacts (9) carried on part of the objective lens mechanism (8). For example when the camera is brought to readiness the lens tube (8) slides (A) and makes the electrical connections.

Description

Switch arrangement

The invention relates to a switch arrangement for connecting to conductor tracks with electrical connection parts arranged on a flexible carrier, preferably in photographic equipment.

The present invention is based on the object of a switch arrangement of the type mentioned to create a functionally reliable, space-saving and inexpensive training and with the additional to be soldered resilient Contact elements are not necessary.

The object is achieved according to the invention in that the flexible Conductor carrier in the area of its electrical connection point on the conductor path remote side with a positionally secured in a housing part holding part is provided and that the conductor tracks are components of the switch assembly and can be connected to a contact counterpart. The conductor track is advantageously used as Part of the switch assembly, the one with the flexible conductor carrier connected holding part in the area of the switch arrangement the flexibility as far as possible cancels and thus enables a desired contact pressure. The holding part becomes in a simple manner with the flexible circuit, e.g. B. connected by adhesive.

According to a further training, the holding part is resilient, wherein the end region of the flexible line carrier provided with the holding part is formed protruding into the movement path of the contact counterpart.

According to an advantageous embodiment, the flexible carrier and the Support part designed like a comb, the comb-like tongues in the movement path of the contact counterpart. This makes it possible, with little effort, to that mutually isolated conductor tracks with corresponding contact counterparts at the same time come into contact. A multi-part switch is thus created in a simple manner.

The contact counterpart is advantageously motorized or by means of a handle can be adjusted directly or via intermediate links.

According to a further embodiment, the counterpart contact is a contact clip formed and on a part of the from an initial position to a working position movable lens barrel attached. Without much additional mechanical and electrical A switch arrangement is created that saves space in the area of the The lens barrel can be arranged using the conductor tracks that are already present.

Appropriately, the switch arrangement is used as a main switch for one to be connected to an exposure control circuit of a photographic camera Battery trained.

In the following, the invention is based on one in Figures 1, 2 and 2a described embodiment illustrated. They show: FIG. 1 a partial view the switch arrangement, Figure 2 shows a section through the switch arrangement according to FIG 1 and FIG. 2a the contact device according to FIG. 2.

According to FIG. 1, 1 is a flexible carrier or a flexible film made of insulating material, on the next to electrical components, not shown Conductor tracks 2, 3, 4, 5, etc. are provided. In the end area is the flexible carrier 1 designed like a comb. The end points of the on the tongues la, lb, lc, ld, le, lf and lg located conductor tracks 2a, 3a, 4a, 5a, 5b, 5c and 5d form contact points respectively.

Contact points of a switch.

In the end area of the flexible carrier 1 is on the conductor tracks 2 to 5 side facing away from a resilient comb part 6 by means of an adhesive connection upset. This spring comb part 6 is preferably through a screw or plug connection secured in terms of position in a camera housing part 7.

A lens barrel is denoted by 8. There is a Stirrup-like contact device 9 is provided, which contact segments isolated from one another 9a, 9b, 9c, 9d, 9e, 9f and 9g. Connection points of these contact segments are denoted by 10, 11, 12, 13, 14, 15 and 16. In a manner not shown are the contact points 10 and 11 with the Pulse and minus pole of a battery connected, while the other connection points 12 to 16 z. B. with camera side Switches, an exposure control magnet, light emitting diodes and the like. Are connected.

If the lens barrel 8 is not shown in the direction of the arrow A moved from its starting position to its working position, so come the contact elements 9a to 9f in contact with the associated contact elements 2a to 5d of them assigned conductor tracks. Here, the resilient contact tongues la to lg moved away against their spring force, creating the desired contact pressure will.

In a manner not shown, the resilient comb part is perpendicular to The direction of movement of the lens is adjustable, making the contact pressure adjustable is.

Claims (6)

Claims 1. Switch arrangement for connecting on a flexible Carrier arranged conductor tracks with electrical connection parts, preferably in photographic equipment, characterized in that the flexible conductor track carrier (1) in the area of its electrical connection points (2a to 5d) on the conductor track remote side with a positionally secured holding part in a housing part (7) (6) is provided and that the conductor tracks (2 to 5) components of the switch arrangement are and can be connected to a contact counterpart (9). 2. Switch arrangement according to claim 1, characterized in that the holding part (6) is resilient and that the end portion of the with the holding part provided flexible carrier (1) in the movement path of the contact counterpart (9) is formed protruding. 3. Switch arrangement according to claim 1 or 2, characterized in that that the flexible carrier (1) and the carrier part (6) are designed like a comb and that the comb-like tongues (la to lg) in the path of movement of the contact counter-bridge (9) protrude. 4. Switch arrangement according to one of the preceding claims, characterized characterized in that the contact counterpart (9) as a contact clip with a corresponding Number of contact segments is formed and on one. Part of the movable from an initial position to a working position Lens barrel (8) is attached. 5. Switch arrangement according to claim 4, characterized in that the switch arrangement via the contact segments (9a to 9g) of the contact counterpart (9) with the connection points of a battery and with the camera-side electrical Components of an exposure control circuit of a photographic camera connected are. 6. Switch arrangement according to claim 1 or 2, characterized in that that the contact counterpart is part of a further flexible conductor carrier with holding part and that the electronic connection points of both conductor track carriers are electrically connectable to one another by means of an actuator.