EP0309860A2 - Socket - Google Patents

Abstract

In a socket having a multiplicity of contact chambers in a supporting body, it is intended to allow contact spring types (15, 18) having different dimensions to be optionally inserted into the contact chambers (2). For this purpose, the contact chamber (2) has a first groove (9) and a second groove (10), the two grooves (9, 10) being open to the guide region (8), which is used for holding a blade contact of the associated connector. The side of the first groove (9) which is open to the guide region (8) is wider than that of the second groove (10). A contact spring (15 or 18) is inserted either into the first groove (9) or into the second groove (10). <IMAGE>

Description

The invention relates to a socket with a plurality of contact chambers in a carrier body, each contact chamber having a guide area for guiding a knife contact of a plug and a channel-shaped receiving area for receiving a contact spring, and the receiving area is open to the guide area.

Such a socket is described in DE-GM 84 18 604. The receiving area of each of the contact chambers is designed so that only a single type of contact spring can be used. The consequence of this is that a separate carrier body with a corresponding design of the contact chambers must be kept ready for each type of contact spring. This is cumbersome since sockets with this or that contact spring are often desired.

Various types of contact springs are known, which are intended for different claims.

The object of the invention is to propose a socket of the type mentioned, in the contact chambers of which contact spring types with different dimensions can be used.

According to the invention, the above object is achieved in a bushing of the type mentioned at the outset in that the receiving area has a first channel and at least one second channel, the channels being open towards the guide area, and that the side of the first channel open to the guide area being wider than that of the others Channel is and that a contact spring is inserted either in the first channel or in the other channel.

It is thereby achieved that either contact springs of one type or contact springs of another type can be used in the carrier body. In both cases, the contact chamber forms a secure holder for the respective contact spring. Because the first groove is adapted to a contact spring type and the second groove is adapted to another contact spring type. It is therefore not necessary to use different carrier bodies if different types of contact springs are to be used.

In a preferred embodiment of the invention, the first channel is less deep than the second channel. The first channel is therefore suitable for receiving a leaf spring-shaped chalice contact spring. The second channel is intended to receive a stamped fork contact spring.

The channels can lie side by side with respect to the guide area. However, the second channel is preferably located in the first channel. This ensures that the knife contact is contacted in the center regardless of the contact spring used.

In an embodiment of the invention, an area of each of the channels runs on both sides of the guide area. As a result, an inserted knife contact is always contacted on both sides, regardless of the contact spring used.

The pull-out force for pulling the plug from the socket should be between certain values. For example, a pull-out force of at least 40 N to a maximum of 70 N is provided. Since such a pull-out force is not guaranteed for all types of contact spring that can be inserted into the carrier body, in a further development of the invention, molded parts are formed in a groove of the carrier body that runs around the contact chambers and that clamps a plug part inserted into the groove. This makes it possible to use contact springs that do not in themselves lead to sufficient pull-out force.

Such sockets are used, for example, for plug connections that connect devices for radio and television and data communication, such as, for example, televisions, video devices, electronic game devices, home computers, on-screen text devices. Such connections are also called peritelevision connections.

Further advantageous refinements of the invention result from the exemplary embodiment described below.

• Figur 1 eine Buchse einer Steckverbindung,
• Figur 2 eine Kontaktkammer der Buchse nach Figur 1 mit einem Typ einer Kontaktfeder,
• Figur 3 die bei Figur 2 eingesetzte Kontaktfeder in Seitenansicht,
• Figur 4 die Kontaktkammer mit einem anderen Typ einer Kontaktfeder und
  
• Figur 5 eine Seitenansicht der bei Figur 4 verwendeten Kontaktfeder.

Show in the drawing:

• 1 shows a socket of a plug connection,
• FIG. 2 shows a contact chamber of the socket according to FIG. 1 with a type of contact spring,
• FIG. 3 shows the side view of the contact spring used in FIG. 2,
• Figure 4 shows the contact chamber with another type of contact spring and
  
• Figure 5 is a side view of the contact spring used in Figure 4.

A carrier body (1) has two rows of contact chambers (2). A groove (3) runs around this, into which a shielding of a plug, not shown, is to be inserted. Webs (4) protrude into the groove (3). In addition, recesses (5) are provided in the groove (3), which are followed by ramps (6) in the insertion direction of the shield. The shield clamps between the webs (4) and the ramps (6).

Fastening means (7) are provided on the outside of the carrier body (1).

The contact chamber (2) has a guide area (8), the cross section of which is slightly larger than the cross section of a spade-shaped knife contact of the plug.

The contact chamber (2) also has a receiving area which is formed by two channels (9 and 10). Both channels (9 and 10) are open to the guide area (8). The first channel (9) is less deep than the second channel (10). The second channel (10) lies in the middle of the first channel (9) and is less wide than this (see FIGS. 2 and 4).

The channel (9) has a channel area (11) on one side of the guide area (8) and a channel area (12) on the other side of the guide area (8). Correspondingly, the channel (10) is provided with a channel area (13) on one side of the guide area (8) and with a channel area (14) on the other side of the guide area (8). The channel areas (11 to 14) are mirror-symmetrical to the guide area (8).

In the embodiment of Figure 2, a contact spring (15) is inserted into the chamber (2). This has a leg (16) and a leg (17). The leg (16) lies in the channel area (11). The leg (17) engages in the channel area (14). The legs (16 and 17) are thus safely guided in the contact chamber (2). The knife contact mentioned can be inserted between the legs (16 and 17). The channel areas (11 and 12) are free.

In the exemplary embodiment according to FIG. 4, another contact spring (18) is inserted into the contact chamber (2). This has two leaf spring tongues (19 and 20). The leaf spring tongue (19) is guided in the channel area (11). The leaf spring tongue (20) is guided in the channel area (12). The channel areas (13 and 14) are free. The knife contact can be pushed between the leaf spring tongues (19 and 20).

The carrier body (1) can optionally be equipped with the contact spring tongues (15 or 18). The advantage of the contact spring tongues (15) is that they are cheaper than the contact springs (18). The advantage of the contact spring tongues (18) is that they make better contact than the contact springs (15).

Reference number list 12/87 GM

1 carrier body
2 contact chamber
3 groove
4 bridges
5 wells
6 ramps
7 fasteners
8 leadership area
9 first gutter
10 second gutter
11 channel area
12 channel area
13 channel area
14 channel area
15 contact spring
16 legs
17 legs
18 contact spring
19 leaf spring tongue
20 leaf spring tongue

Claims (8)

1. socket with a multiplicity of contact chambers in a carrier body, each contact chamber having a guide area for guiding a knife contact of a plug and a channel-shaped receiving area for receiving a contact spring and the receiving area being open to the guide area,
characterized,
that the receiving area has a first channel (9) and at least one second channel (10), the channels (9, 10) being open to the guide area (8), that the side of the first channel (9 ) is wider than that of the other channel (10) and that a contact spring (15 or 18) is inserted either in the first channel (9) or in the other channel (10). 2. socket according to claim 1,
characterized,
that the first channel (9) is less deep than the second channel (10). 3. socket according to claim 1 or 2,
characterized,
that the second channel (10) lies in the first channel (9). 4. Socket according to one of the preceding claims,
characterized,
that an area (11 to 14) of each of the channels (9, 10) runs on both sides of the guide area (8). 5. socket according to claim 4,
characterized,
that the channel areas (11 to 14) are symmetrical to the guide area (8). 6. Socket according to one of the preceding claims,
characterized,
that the first channel (9) a contact spring (18) with leaf spring tongues (19, 20) is used. 7. Socket according to one of the preceding claims 1 to 5,
characterized
that a stamped contact spring (15) with legs (16, 17) is inserted into the second channel (10). 8. Socket according to one of the preceding claims,
characterized,
that molded parts (4, 6) are formed in a groove (3) of the carrier body (1) which runs around the contact chambers (2) and which clamps a plug part pushed into the groove (3).

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