Closure fasteners – Extension link – Multiple
Patent
1980-05-13
1982-09-21
Lyddane, William E.
Closure fasteners
Extension link
Multiple
49192, 49278, 292278, E05C 1732
Patent
active
043503764
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a device enabling a swiveling window to be locked in closed or partially open position, particularly a swiveling window for an automobile.
BACKGROUND ART
In the prior art, locking devices for swiveling windows are known generally to include two articulated links, disposed facing the pivot axis of the window. Among the disadvantages of such devices may be cited the lack of leaktightness they provide the window, due to a loss of pressure on the leaktight seal following disalignment of the points of articulated of the links necessary for locking the window. In addition, the path of the control rod during operation causes a protrusion into the interior of the vehicle, entailing risks of danger when the partial opening of the window is positioned at only half its travel.
DISCLOSURE OF INVENTION
The present invention is intended to remove the disadvantages of prior art systems by providing a locking device during the operation of which the leaktight seal will remain at a constant level of compression.
The locking device according to the invention is characterized by the fact that it includes a rod, articulated (i) so as to slide in a handle or control lever mounted so as to pivot on a rest, and (ii) at a yoke mounted with a certain degree of rotation in a base affixed to the window, and a mechanism for locking/unlocking the lever in the closed or partially opened positions of the window. The locking mechanism advantageously includes a set of cams shaped so as to come either into abutment or into sliding contact with one of the cams being integral with the handle while the other is fastened integrally to the yoke.
This embodiment enables the control lever to be maintained at a constant distance from its rest position during rotational movement.
With a quarter-turn rotation, such a device enables rapid locking and unlocking, making possible its adaptation to a servo-control mechanism, e.g., a motor element, in order to automate the assembly.
Various other objects, features and attendant advantages of the present invention will be more fully appreciated as the same becomes better understood from the following detailed description when considered in connection with the accompanying drawings in which like reference characters designate like or corresponding parts throughout the several views and wherein:
FIG. 1 is a side view of the system in locked position, window closed;
FIG. 2 is a top view of the system of FIG. 1;
FIG. 3 is a cross-sectional view taken along III--III of FIG. 4;
FIG. 4 is a cross-sectional view taken along IV--IV of FIG. 3;
FIG. 5 is a cross-sectional view taken along V--V of FIG. 3;
FIG. 6 is a cross-sectional view taken along VI--VI of FIG. 8, illustrating the locking of the system in the partially open position of the window;
FIG. 7 is a partial cross-sectional view taken illustrating unlocking of the system; and
FIG. 8 is a partial cross-sectional view taken illustrating the locking of the system in the partially opened position of the window.
BEST MODE FOR CARRYING OUT THE INVENTION
The locking device according to the invention includes control a handle 1 pivotably mounted on a lock body rest 2 via an axle member 3 traversing it. A driving rod 4 is provided at one end thereof, with a ball 5 mounted so as to slide in an oblong housing of elongated channel 19 provided on the inner lateral surface of control handle 1. At its other end, rod 4 is jointed to a yoke 6 through axle member 7, perpendicular to pivot axis 3 of control handle. Yoke 6, positioned in recess 18 of handle 1, is mounted so as to swivel on a base 8 fastened onto window 9 essentially parallel to rest 2, by means of a screw-nut system 10, 11. Locking of the system is performed by two cams 14, 17 shaped so as to overlap. Cam 14, integral with yoke 6, is, in a locked position, in contact through its lower surface 15 with the upper part 16 of cam 17, which is integral with handle 1. By rotation of control handle 1 in the direction of arrow F, which causes yoke 6 to swivel
REFERENCES:
patent: 1494403 (1924-05-01), Ayres
patent: 4206939 (1980-06-01), Rowley
Lyddane William E.
Regie Nationale des Usines Renault
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