EP0994526B1 - Plug and socket for the connection of a loudspeaker - Google Patents

Abstract

The clamp socket has 2 spring-loaded clamp elements (1,1') displaced against the spring force to bring an opening (2,2') of the clamp element into alignment with an opening in a stationary contact element (4,4'), each clamp element having a second opening cooperating with a retaining nose for direct coupling between the clamp socket and a corresponding plug. An Independent claim for a plug for connection to a loudspeaker cable clamp socket is also included.

Description

The invention relates to a clamping bush according to the preamble of claim 1 and a connector according to claim 10.

Such clamping bushes have according to the prior art in particular Fastening of cables to loudspeakers has been widely used (see e.g. EP 0 378 337). The Known clamping bush is disadvantageously not suitable for immediate Connect or couple the speaker to the corresponding device Consumer electronics, for example a television, radio or one Computer monitor.

The object of the invention is to overcome the disadvantages of the prior art remove. In particular, a clamping bush should be specified that both a conventional cable clamp and a enables direct coupling to the device. Another object of the invention is to provide a connector suitable for coupling.

This object is solved by the features of claims 1 and 10. Appropriate configurations result from the features of the claims 2 to 9 and 11 to 18.

After a first solution to the problem, a clamping bushing provides that each clamping element has a second recess for engaging one has correspondingly trained locking lug. - This enables both conventional cable clamps as well as a direct one Coupling to a plug.

According to one design feature, the second recess has at least one a sliding surface running at an angle to the direction of displacement. This can when retracting the locking lug into the second recess automatically one Sliding movement of the clamping element and thus a releasable locking connection be produced between the clamping element and the latch.

The second recess can form a second opening. The clamping elements are expediently received on a carrier and each clamping element is assigned a third recess in the carrier, the opening of the clamping element moved against the spring force in Overlap with the second breakthrough is. This allows an installation depth of Clamping bushing can be kept particularly low. The clamping bush can in particular the same external dimensions as a conventional one Have a clamping bush so that it can be used universally.

The third recess advantageously forms a third opening. The simplifies production. From one opposite the clamping elements The back of the carrier can have two soldering lugs as well as a cylindrical socket protrude to engage a screw. This ensures a special easy assembly of the clamping bush.

According to a further embodiment, the clamping bush according to the invention is in one Loudspeaker housing installed, with a fourth in the loudspeaker housing Recess can be provided for receiving the clamping bush. The further simplifies assembly. It is considered to be particularly advantageous one against an elastic restoring force in the fourth recess movable slide for moving the clamping elements against the To provide spring force. By actuating the slider you can easily formed by the interaction of the locking lug with the second recess Snap connection to be released.

According to a further solution according to the invention, a plug is for connection a clamping bush according to the invention is provided, in which a Base plate in a substantially vertical direction of insertion two contact pins and extend two locking lugs. Such a connector enables direct Coupling to the above-described clamping bush.

In a corresponding training for the clamping socket, the contact pins in a first level and the locking lugs arranged in a parallel thereto second level may be provided. The contact pins and the locking lugs are advantageously arranged on the corner points of an imaginary rectangle. The proposed geometry enables a particularly simple structure of the Plug.

According to a further design feature, one of the base plates is in Spring-biased ejection means provided, that in one of the base plate extending against the direction of insertion Housing can be performed. The expectorant is conveniently in shape a button open on one side, on the conical surface an axially extending guide groove and two at the opening edge of each other oppositely arranged detent springs are provided. Alternatively, you can the detent springs can also be replaced by a single detent spring. The proposed ejection means facilitates the release of one between the plug and the locking bush produced locking connection. It is particularly easy can be manufactured and assembled.

Advantageously, several of the base plate are opposite to the Protruding locking means for fastening the plug to one Device provided. The locking means enable particularly simple assembly of the plug on the device.

To further simplify production, the base plate, the Lugs, the housing and the locking means as one-piece injection molded Plastic component to be executed.

The plug according to the invention can be used in a consumer electronics device such as a television, radio, computer monitor and the like.

Fig. 1

eine Draufsicht auf die Frontseite einer Klemmbuchse,

Fig. 2

eine erste Seitenansicht gemäß Fig. 1,

Fig. 3

eine zweite Seitenansicht gemäß Fig. 1,

Fig. 4

eine Draufsicht auf die Rückseite der Klemmbuchse nach Fig. 1,

Fig. 5

eine Querschnittsansicht gemäß der Schnittlinie A-A in Fig. 1,

Fig. 6

eine Querschnittsansicht gemäß der Schnittlinie B-B in Fig. 1,

Fig. 7

eine perspektivische Ansicht der Klemmbuchse,

Fig. 8

eine Draufsicht auf einen Stecker,

Fig. 9

eine erste Seitenansicht gemäß Fig. 8,

Fig. 10

eine zweite Seitenansicht gemäß Fig. 8,

Fig. 11

eine Querschnittsansicht gemäß der Schnittlinie A-A in Fig. 8,

Fig. 12

eine Querschnittsansicht gemäß der Schnittlinie B-B in Fig. 8,

Fig. 13

eine Querschnittsansicht gemäß der Schnittlinie C-C in Fig. 8,

Fig. 14

eine Querschnittsansicht gemäß der Schnittlinie D-D in Fig. 8,

Fig. 15

eine erste perspektivische Ansicht des Steckers gemäß Fig. 8,

Fig. 16

eine zweite perspektivische Ansicht des Steckers gemäß Fig. 8,

Fig. 17

eine Draufsicht auf die Klemmbuchse mit eingestecktem Stecker,

Fig. 18

eine Querschnittsansicht gemäß der Schnittlinie B-B in Fig. 17 und

Fig. 19

eine Teilquerschnittsansicht durch ein angekuppeltes Lautsprecherghäuse mit Klemmbuchse.

Exemplary embodiments of the invention are explained in more detail below with reference to the drawing. Show here:

Fig. 1

a plan view of the front of a clamping bush,

Fig. 2

2 shows a first side view according to FIG. 1,

Fig. 3

2 shows a second side view according to FIG. 1,

Fig. 4

2 shows a plan view of the rear of the clamping bush according to FIG. 1,

Fig. 5

2 shows a cross-sectional view along the section line AA in FIG. 1,

Fig. 6

2 shows a cross-sectional view along the section line BB in FIG. 1,

Fig. 7

a perspective view of the clamping bush,

Fig. 8

a top view of a connector,

Fig. 9

8 shows a first side view according to FIG. 8,

Fig. 10

8 shows a second side view according to FIG. 8,

Fig. 11

6 shows a cross-sectional view along the section line AA in FIG. 8,

Fig. 12

8 shows a cross-sectional view along the section line BB in FIG. 8,

Fig. 13

6 shows a cross-sectional view along the section line CC in FIG. 8,

Fig. 14

6 shows a cross-sectional view along the section line DD in FIG. 8,

Fig. 15

8 shows a first perspective view of the plug according to FIG. 8,

Fig. 16

8 shows a second perspective view of the plug according to FIG. 8,

Fig. 17

a plan view of the clamping socket with plug inserted,

Fig. 18

a cross-sectional view along the section line BB in Fig. 17 and

Fig. 19

a partial cross-sectional view through a coupled loudspeaker housing with a clamping bush.

1 to 7, a clamping bush is shown in which two clamping elements 1, 1 'have a first opening 2 or 2'. The clamping elements 1, 1 'are each against the force of an associated spring 3 in one Shifting direction V shiftable. The clamping elements 1, 1 ', the springs 3 and Contact elements 4, 4 'are on an injection molded plastic manufactured carrier 5 added. The made of metal Contact elements 4, 4 'each have a first recess 6, 6' through Moving the clamping elements 1, 1 'against the spring force with the first Breakthrough 2, 2 'can be brought into overlap, so that by the first opening 2, 2 'a contact pin or the strand of a cable into the first Recess 6, 6 'can be inserted. On the clamping elements 1, 1 ' opposite back of the carrier 5 are two first solder tails Clamping elements 4, 4 'emerge.

The clamping elements 1, 1 'each have an oblique to the direction V extending sliding surface 7, 7 '. Between the sliding surface 7, 7 'and one The first opening 2, 2 'surrounding section is in the clamping elements 1, 1' a second opening 8, 8 'is provided. In the carrier 5 there are third Breakthroughs 9, 9 ', the openings of which are displaced when counter to the spring force Clamping elements 1, 1 'are aligned with the opening of the second openings 8, 8'.

A cylindrical socket extending from the back of the carrier 5 Holding a preferably self-tapping screw is designated by 10. The carrier 5 and the cylindrical socket 10 are advantageously in one piece made of injection molded plastic.

8 to 14 is a corresponding to the above-described clamping bush Plug shown without ejection means. From a base plate 11 extend in an insertion direction designated with R two contact pins 12, 12 'and two Lugs 13, 13 '. The locking lugs 13, 13 'each have a terminal provided hook-like designed engagement grip element. The Contact pins 12, 12 'are attached in a first plane E1. The latches 13, 13 'are in a second plane E2 arranged parallel to the first plane E1 arranged. The contact pins 12, 12 'and the locking lugs 13, 13' are on the corner points of an imaginary rectangle.

R extends from the base plate 11 in the opposite direction of insertion pot-like housing 14, in the wall opposite one another Slots 15, 15 'are provided. Within the housing 14 is in the center Injection molded conically tapered mandrel 16. Moreover also extend counter to the insertion direction R locking means 17, 17 'from the Base plate 11. The second of base plate 11 are in the same direction Ends of the contact pins 12, 12 'out. They are designed here as solder lugs. It can also be that the second ends are designed as plug connectors are.

15 and 16 show the connector again in perspective views, an ejection means to be accommodated in the housing 14 is not shown.

17 and 18, the clamping bush is shown with the plug inserted. The Contact pins 12, 12 'reach through the first opening 2, 2' and extend to the first recess 6, 6 'of the contact elements 4, 4'. The latches 13, 13 'reach through the second opening 8, 8' and the one on the carrier 5 provided third breakthrough 9, 9 '. The locking lugs 13, 13 'are from Gripping element 1, 1 'behind.

An ejection element 18 is biased by a spring 19. The ejection element 18 is hollow on one side. The spring 19 surrounds the mandrel 16 and protrudes into the cavity of the ejection element 18.

In Fig. 19, the clamping bush is form-fitting in a fourth recess a loudspeaker housing 20, the fourth openings 21, 22 ' for reaching through the free ends of the contact elements 4, 4 '. A slider 22 extends into the vicinity of the spring 3 opposite Narrow sides of the clamping elements 1, 1 '.

The function of the device is as follows:

For the clamping fastening of a cable in the clamping socket, the Clamping elements 1, 1 'moved by hand against the force of the spring 3 until the first opening 2, 2 'is in register with the first recess 6, 6'. Then the cable through the first opening 2, 2 'to the first Recess 6, 6 'pushed. By releasing the clamping element 1, 1 ' the cable is clamped in the recess 6, 6 '.

However, a loudspeaker housing 20 provided with a clamping bush can also directly to a device equipped with the plug, e.g. a television or computer monitor. This is how the clamping bush is led against the plug that the locking lugs 13, 13 'against the second Breakthroughs 8, 8 'are pressed. The locking lugs 13, 13 'come with the system the sliding surfaces 7, 7 '. As a result of the pressure applied, the Clamping elements 1, 1 'moved in the direction of displacement V. The first breakthrough 2, 2 'coincides with the first recess 6, 6'. The contact pins 12, 12 'engage in the first recess 6, 6'. At the same time, Lugs 13, 13 'the clamping elements 1, 1'. The contact pins 12, 12 'are held clamped. Furthermore, when inserting the clamping bush in the Plug the ejection element 18 against that exerted by the spring 19 Force pressed into the housing 14.

To release the connection, the one recorded in the loudspeaker housing 20 Slide 22 moves against the clamping elements 1, 1 '. The clamping elements 1, 1 ' are moved in the direction of displacement V until the locking lugs 13, 13 'no longer be attacked. Due to the effect of the ejection element 18 Connection of the plug with the clamping socket released.

LIST OF REFERENCE NUMBERS

1, 1 '

clamping element

2, 2 '

first breakthrough

3, 3 '

feather

4, 4 '

contact element

5

carrier

6, 6 '

first recess

7, 7 '

sliding surface

8, 8 '

second breakthrough

9, 9 '

third breakthrough

10

cylindrical frame

11

baseplate

12, 12 '

pin

13, 13 '

locking lug

14

casing

15, 15 '

slot

16

mandrel

17, 17 '

latching means

18

ejection member

19

second spring

20

Speaker enclosure

21, 21 '

fourth breakthrough

22

pusher

V

displacement direction

R

plug-in direction

E1

first floor

E2

second level

Claims (18)

1. Clamping socket, in particular for the clamping attachment of loudspeaker cables, wherein two spring-preloaded clamping elements (1, 1') each have a first perforation (2, 2') and each of the clamping elements (1, 1') is movable by displacement against a spring force into a position in which the first perforation (2, 2') coincides with a first cutout (6, 6') of a fixed contact element (4, 4'), characterized in that each clamping element (1, 1') has a second cutout for the engagement of a matchingly formed latching lug.
2. Clamping socket according to Claim 1, wherein the second cutout has at least one sliding surface (7, 7') extending at an angle to the direction of displacement (V).
3. Clamping socket according to any one of the preceding claims, wherein the second cutout forms a second perforation (8, 8').
4. Clamping socket according to any one of the preceding claims, wherein the clamping elements (1, 1') are received on a carrier (5) and a third cutout in the carrier (5) whose opening coincides with the second perforation (8, 8') when the clamping element (1, 1') is displaced against the spring force is assigned to each clamping element (1, 1').
5. Clamping socket according to any one of the preceding claims, wherein the third cutout forms a third perforation (9, 9').
6. Clamping socket according to any one of the preceding claims, wherein two solder tags and also a cylindrical fitting (10) project from a rear side of the carrier (5) opposite the clamping elements (1, 1') to engage a screw.
7. Clamping socket according to any one of the preceding claims, installed in a loudspeaker housing (20).
8. Clamping socket according to Claim 7, wherein a fourth cutout is provided in the loudspeaker housing to receive the clamping socket.
9. Clamping socket according to Claim 8, wherein a slider that can be moved against an elastic restoring force into the fourth cutout is provided for displacing the clamping elements (1, 1') against the spring force.
10. Plug for connection to a clamping socket according to any one of the preceding claims, having a base plate (11) from which two contact pins (12, 12') and two latching lugs (13, 13') extend in an essentially perpendicular plug direction (R).
11. Plug according to Claim 10, wherein the contact pins (12, 12') are arranged in a first plane (E1) and the latching lugs (13, 13') are provided in a second plane (E2) disposed parallel thereto.
12. Plug according to either of Claims 10 or 11, wherein the contact pins (12, 12') and the latching lugs (13, 13') are disposed at the corner points of an imaginary rectangle.
13. Plug according to any one of Claims 10 to 12, wherein a spring-preloaded ejection means (18) is provided that extends from the base plate (11) in the plug direction (R).
14. Plug according to any one of Claims 10 to 13, wherein the ejection means (18) is guided in a housing (14) extending from the base plate (11) against the plug direction (R).
15. Plug according to any one of Claims 10 to 14, wherein the ejection means (18) is formed in the shape of a knob that is open on one side, on whose conical outside surface an axially extending guide groove is provided and at whose opening rim two latching springs are provided that are disposed opposite one another.
16. Plug according to any one of Claims 10 to 15, wherein a plurality of latching means (16, 16') extend from the base plate (11) against the plug direction (R) for the purpose of attaching the plug to an appliance.
17. Plug according to any one of Claims 10 to 16, wherein the base plate (11), the latching lugs (13, 13'), the housing (14) and the latching means (16, 16') are designed as an integrally injection-moulded polymeric part.
18. Plug according to any one of Claims 10 to 17, installed in an entertainment electronics appliance, such as a television set, radio, computer monitor and the like.

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