Pipe joints or couplings – With assembly means or feature – Guide and support
Patent
1998-05-08
1999-11-16
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Guide and support
285 93, 285312, 285901, F16L 3500
Patent
active
059843713
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a hydraulic connection device for hydraulically connecting together at least one pair of complementary connection members suitable for being interfitted axially, namely a male member and a female member.
In numerous industrial fields, it is necessary to connect a machine or some other equipment to one or more hydraulic liquid distribution sources in fluid-tight manner by means of one or more distinct connections.
This applies in particular to the hydraulic link between a farm tractor and a hydraulically driven loader device designed to be removably mounted on the tractor.
Various devices have been proposed, and they are generally complex, voluminous, and costly.
An object of the invention is to provide a hydraulic connection device that is extremely compact, while being robust, simple to use, and cheap.
The device provided includes at least one pair of complementary connection members, and preferably more than one pair of complementary members suitable for being interfitted axially, namely a male member and a female member.
Said device is remarkable in that it comprises: members; situated on either side of said other member, and extending downwards perpendicularly to the plane of the plate, each prong being provided with a recess having a forwardly-facing shaped edge; and having two cam-forming portions, each of which is suitable for co-operating with a shaped edge of the associated prong so as to cause the prongs to penetrate into and to be locked inside the housing on rotating the shaft, thereby interfitting the connection members.
In addition, according to a certain number of non-limiting additional characteristics of the invention: the positioning of the prongs being such that their outside faces are guided by the side walls of the housing, and their back edges are guided by the back wall of the housing; the device is in the connected state; inlet edge; greater than the length of the connector member extending under the plate; end-of-rotation positions; prongs, and is/are thereby protected from impact; and direction, and provided with a lip sloping upwards like the peak of a cap for facilitating opening of the lid.
Other characteristics and advantages of the invention appear from the following description and from the accompanying drawings which show a possible embodiment of the invention merely by way of example, and in which:
FIG. 1 is an overall perspective view of the device;
FIG. 2 is a side view of the FIG. 1 device shown partly in section on a transverse vertical plane; and
FIGS. 3 to 5 are diagrammatic side views illustrating how the connection operates.
The device shown in the figures comprises two distinct connections, each of which is made up of a pair of complementary connector members, namely a male member and a female member, suitable for being interfitted axially in fluid-tight manner.
These elements are known per se.
Naturally, they are sealed off (fluid-tight). But when the male member is inserted into the female member, the connection is established and the hydraulic liquid can pass from one member to the other.
Reference 3 is used to designate the male members, and reference 4 is used to designate the female members.
The device is generally symmetrical in shape about a transverse vertical midplane referenced T in FIG. 1.
The members 3 are carried by a support 1 comprising a substantially rectangular plate 11.
The members 3 pass through the plate 11 perpendicularly thereto, their axes therefore extending vertically when the plate 11 is horizontal. The two members 3 are situated side-by-side, their axes lying in the same longitudinal vertical plane P (orthogonal to T).
Above the plate 11, the members 3 are connected to respective hoses 30 through which a hydraulic fluid can flow.
The plate 11 is provided with a pair of identical side prongs 10 situated on either side of the members 3 and extending downwards, perpendicularly to the plane of the plate 11, and parallel to the plane T.
One of the prongs is designated 10a and the other prong is designated 10
REFERENCES:
patent: 5172998 (1992-12-01), Hatagishi
patent: 5344194 (1994-09-01), Hattagishi et al.
patent: 5507530 (1996-04-01), Mahaney
Arola Dave W.
Souete d'etude et d'Innovation Dans le Materiel Agricole
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