Electric plug system
AssigneeZF Friedrichshafen AG
InventorWolfgang Schmid
Life of this patent
Estimating the term…
Abstract
The electric plug system for the automatic transmission of a motor vehicle consists of a socket situated on the transmission and of a plug engaging in the socket wherein the cylindrical end (10) of the socket that accommodates the plug traverses a bore (3) in the transmission which is placed in the oil pan. The socket has a radial flange (5) to which attaches a cylindrical segment (6) of small diameter followed by the cylindrical end of a diameter still further reduced. The cylindrical end and the cylindrical segment are surrounded by a centering sleeve which by a locking system on the outer side of the oil pan can be firmly connected with the latter.
Claims8
Electric plug system for the automatic transmissions of motor vehicles consisting of a socket situated in the transmission and of a plug engaging in the socket for creating a connection between the electronic control device situated in the transmission and electric feed-in lines integrated in the cable harness wherein the cylindrical end of the socket that accommodates the plug traverses a bore in the transmission and is held by a detachable locking system, characterized in that
- a) said bore (2) is provided in said oil pan (1), that it has on its upper outer edge a conical chamfer (.3) and that it is provided on its underside with an annular collar (4);
- b) said socket has on its end facing the interior of the transmission a radial flange (5) having an outer diameter larger than the diameter of said bore (2) in said oil pan (1) and substantially equal. to the outer diameter of said annular collar (4);
- c) to said flange (5) attaches a cylindrical segment (6) having an outer diameter substantially equal to the diameter of said bore (2) and that in said segment is provided an annular groove (7) in which a seal (8) engages;
- d) to the cylindrical segment (6) attaches the cylindrical end (10) wherein on the outer wall of the part of said cylindrical end (10) that traverses said bore (3) and projects out of it, two locking gates (9) are provided which are opposite each other and each forms a guideway (22);
- e) said cylindrical end (10) and said cylindrical segment (6) are surrounded by a centering sleeve (11) having its outer diameter substantially equal. to the diameter of said bore (2) and that said centering sleeve (11) is provided on its outer side with an annular groove (12) in which a seal (13) engages;
- f) said centering sleeve (1 1) is provided with a locking clamp (14) tiltably supported on said sleeve and having two guide pilots (15) that interact with said locking gates (19) on said cylindrical end (10);
- and
- g) said locking clamp (14) interacts with a fixing device (16) provided on the outer side of said oil pan (1).
- g) said locking clamp (14) interacts with a fixing device (16) provided on the outer side of said oil pan (1).
Plug system according to any one of the preceding claims, characterized in that said guideways (22) of said locking gates (9) have the shape of a 2.
Plug system according to any one of the preceding claims, characterized in that said fixing device (16) is a detent for said locking clamp (14).
Plug system according to any one of the preceding claims, characterized in that said fixing device (16) for said locking clamp (14) is a spring situated between said guide pilots (15) and the swivel axis for said locking clamp (14).
Plug system according to any one of the preceding claims, characterized in that said centering sleeve (11) is provided with a lengthening piece (20) which extends at least up to a fastening screw (21) for said oil pan.
Plug system according to any one of the preceding claims, characterized in that said lengthening piece (20) is shaped so as to cover via a fishplate at least one fastening screw (21′) for said oil pan in the assembled state of said socket.
Dependencies are inferred from the claim text.