Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Including means to hold or retard hinged members against...
Patent
1992-11-25
1994-05-17
Larson, Lowell A.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Including means to hold or retard hinged members against...
16250, 16344, 16347, 16274, E05D 1102, E05D 1110
Patent
active
053116445
DESCRIPTION:
BRIEF SUMMARY
The present invention concerns a hinge having stop notches for a door, particularly a car door, comprising a fixed part, a movable part fixed to the door and hinged to the fixed part by means of a pin in such a way as to pivot with the door around the hinge pin, and a holding mechanism with stop notches which is connected to the said parts of the hinge and fitted with elastic elements which form at least one stop notch to hold the door in the corresponding open position.
Hinges of this type are well known and are generally seen between a vehicle door and the door surround. These traditional hinges are totally unprotected from the outside elements and are mechanically integrated with the other parts of the hinge. Since they require lubrication they also present the risk of dirtying the clothes of users getting in and out of the vehicle.
The aim of the present invention is to overcome the above mentioned drawbacks of the classic automobile hinges, by providing a hinge which have the same mechanical functions as the said traditional hinges, but which is protected from external influences.
In this aim, a hinge according to the invention is characterized in that it comprises a housing containing the holding mechanism and rotationally fastened to the first of the said parts, and a supporting element, rotationally fastened to the second part and extending inside the housing in such a way as to engage with the said mechanism.
On preference, the supporting element have a rear extremity containing an axial bore, comprises non-circular external surfaces and is fitted axially in a housing with a corresponding non-circular shape, fitted around the pin in the second part of the hinge.
In the preferred embodiment, the front extremity of the supporting element is fitted with a freely rotating roller, engaging with notches of the holding mechanism.
In a first aspect, the holding mechanism comprises two notches formed by concave surfaces on a pivoting part with axis parallel to the hinge pin and at least one pair of springs compressing this part in opposing rotational directions in such a way as to maintain the said pivoting part in a median point when the roller is not pressing against one of the notches.
In a second aspect, the holding mechanism comprises a cam lever, with a toothed edge pressing against the roller and fitted with notches and a pivoting part fitted with a push pulling the opposite side of the cam lever, the pivoting part being pushed by the said elastic elements.
The housing is preferably fitted with a cover, transversally positioned with respect to the hinge pin and ensuring the impervious enclosure of the holding mechanism.
The housing is generally fixed to the fixed part of the hinge, and the supporting element is rotationally fastened to the movable part.
The said movable part is preferably placed along the pin, between the fixed part and the housing. The housing may include two external, parallel lugs, disposed on either side of the fixed part of the hinge and fitted with at least one locking screw.
The present invention will be more easily understood with the aid of the following description of embodiment examples, referring to the attached drawings, where :
FIG. 1 is a schematic elevation view showing a car door hinge realized according to the invention,
FIG. 2 is a plane view of the hinge shown in FIG. 1,
FIG. 3 is a similar view to that of FIG. 2, after the upper hinge cover has been removed, to show the stop notch mechanism,
FIG. 4 is a partial cross-section view along the line IV--IV of FIG. 2,
FIG. 5 is a partial cross-section view along the line V--V of FIG. 3,
FIG. 6 is a partial cross-section view along the line VI--VI of FIG. 3, and
FIGS. 7 and 8 are similar views to FIG. 3 and represent another embodiment of the door holding mechanism in two different positions.
FIGS. 1 to 6 represent a first embodiment of a hinge 10 with vertical or inclined axis 1, which with a second hinge of the same axis permits the rotatable articulation of a car door 11 on a fixed part of the vehicle body, normally
REFERENCES:
patent: 1269764 (1918-06-01), Weaver
patent: 2587781 (1952-03-01), Stanfield et al.
patent: 3351976 (1967-11-01), Gionet
patent: 4064652 (1977-12-01), Johnston
patent: 4332056 (1982-06-01), Griffin et al.
patent: 4670941 (1987-06-01), Peterson
patent: 4672715 (1987-06-01), Beckwith
patent: 4829633 (1989-05-01), Kassner
Gurley Donald M.
Larson Lowell A.
MGI Coutier S.A.
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