US2066286A - Automobile window sliding lock - Google Patents

Description

29, 1936. CHANDLER 2,066,286

AUTOMOBILE WINDOW SLIDING LOCK Filed J an. 16, 1936 Patented Dec. 29, 1936 UNITED STATES 2,066,286 I I AUTOMOBILE wmoow SLIDING LOCK PATENT OFFICE."

Davis, Lynn, Mass.

Application January 16, 1936, Serial No. 59,376

6 claims. (01. 292-275) My present invention relates to looks and more particularly to an automatic friction lock which is mountedupon a rack and which may he" slid along said rack and locked at any desired position on the rack by one operation of the operator.

My sliding lock is particularly adapted for use with automobile doors for raising and lowering and locking the slidingsash in such doors it .being apparent, of course, that such a sash lock may be used in other sashes exclusive of automobile doors. With such a sash lock as above referred to it is necessary that there be a'lever or other equivalent actuating element associated with the raising and lowering sash mechanism, as in .my copending application entitled Window elevating mechanism, Ser. No. 59,375 filed January 16, 1936, in which my present sash lock has been briefly indicated. I V

The principal object therefore, is an improved sliding sash lock for automobile doors and the like.

Another object is a sliding sash lock which may be slid in a horizontal direction along awindow sill, for instance, for the purpose of raising and lowering the sash and at the same time automatically locking such sash when the handle of said lock is released.

Other objects and novel features comprising the construction and operation of the device. will be apparent as the description of the same progresses.

Referring to the drawing illustrating the preferred embodiment of my invention,

Fig. 1 is a side elevation showing the side of the lock facing toward the outside of the door;

Fig. 2 is another side elevation similar to Fig. 1 but showing the lock in a released position, the dot and dash lines showing the same lock released when the handle is thrown in a reversed direction, and

Fig. 3 is a vertical cross-section taken on the line 3-3 of Fig. 2.

Referring more in detail to the drawing, l indicates the outside panel of an automobile door. II indicates an inside panel of thedo-or to which is usually attached the upholstery. On the inside face of the panel H at a point below the window sill I have attached a horizontal rack I2 by means of screws l3 and spacing co-llars I4.

The lock mechanism proper is mounted upon a plate I5. Back plates I6 and I1 are secured to the front plate I by means of screws I8, the plates being separated at the top by a gib I9 upon which the top of the rack I2 rides and lower gibs and 2| teeth are guided. A pinion 22 engaging the'rack teeth is secured between the plates I5 and I1 being solidly fixed to a sleeve 23 drum 24. Surrounding the drum 24 is a coil against which the rack which is jour- 'naled in the plates I5 and I1. Pressed on the sleeve 23 on the front of the plate I5 is a brake normal position is slightly smaller than the outp side diameter of the drum 24. The two ends of the spring 25 are hooked as shown at 26'above studs 21. Below the'drum 24 and engaging the outer diameter of the spring coils is anangle member 28 which is secured by meansof the screw 29 and dowels 30 to the plate I5.

When the sash lock is in the position indicated in Fig. 1 the spring 25 grips the drum 24 tightly and if the lockis pushedfto-the' right orleft through a force applied to thebottom of the look through the lever 3 I which ispivot e'd' to the plates I5 and I1 at 3I j th'e pinion which 'engages the rack teeth cannot turn because the hooked ends 26 of the spring engage on one or the other of the studs 21, depending on the direction of the outside force applied, and the turning of the drum 24 tends to tighten up the coils of the spring 25 making it impossible for the lock to travel on the rack I2. Because of this locking feature it is impossible for the locking mechanism connected to the door and sash 32 to be acted upon by any force applied to the sash itself. The only way that the sash 32 can be moved is by an application of force applied to the lever 33 which is pivoted to the plate I5 at 34.

When a force (F) is applied in either direction, as indicated by the arrows in Fig. 2, the lever 33 operates like a cam on the top of the pivoted lever 35. The lever 35 pivots down on the pivot 35, the cam surface 31 and the extension dog 38 bear against the hooked ends 26 of the spring 25 pushing them against the studs 21. The pressure of the lever 35 on the spring 25 tends to uncoil the spring increasing its internal diameter such that the drum 24 is released. As the pressure at (F) is continued the entire lock moves to the right or left, as the case may be, and any sash elevating mechanism which may be attached to the lever 3I is operated to open or close the sash. When the pressure at (F) is discontinued and the lever 33 released, the spring which bears against the under side of the lever 35, returns the lever 35 to its normal position as shown in Fig. 1, the spring 25 automatically seizing the drum 24 and preventing it from turnrack, a lock casing slidably mounted upon said rack, a pinion journalled in'said casing and engaged with the under side of said rack, a friction drumsolidly fixed to said pinion, a coil spring tightly engaged around said drum, hooked ends formed on said spring, studs located adjacent said hooked ends on said spring being normally out of engagement with said hooked ends, apivoted lever located above the said hooked ends and,

normally held out of engagement with said hooked ends, a pivoted lever located above the said first pivoted lever and adapted to depress said first lever againstsaid hooked ends when said second lever is swung to one side or the other of said casing, a pivoted lever attached'to the bottom of said casing and adapted to be connected with a window sash operating mechanism.

2. An automobile window lock comprising a rack, a lock casing mounted on'said rack, a friction drum and pinion mounted on said casing,

the said pinion engaging with said rack, a coil spring normally smaller on its internal diameter than said ,drum and adapted to be engaged over said drum, studs located in the side of said casing adjacent said spring, anchor ends located on said spring, pivoted camlevers attached to said casing normally out of engagement with said anchor ends and adapted to engage said anchor ends with said studs for the purpose of disengaging said spring around said drum, a lever pivoted to said casing and adapted to be connected to a window sash elevating mechanism.

3. In a locking device for a sash elevating mechanism, the combination of a stationary rack,

a slidabie casing mounted upon said rack, a friclock.

tion drum and pinion mounted on said casing, the said pinion engaging with said rack, a coiled spring friction brake tightly engaged around said drum, cams adapted to spread said spring, a pivoted lever attached to said lock and adapted to connect with said sash elevating mechanism. 4..In a locking device for a sash elevating mechanism, the combination of a stationary rack, a friction drum attached to said pinion on the outsideof said casing, a coil spring with anchor ends tightly engaged around said drum in its normalvposition, pivoted cams adapted to expand said coil spring around said drum, a lever attached to said casing adapted'to form a link between said lock and said sash elevating mech anism. I

' 5. 'A look for automobile sashes comprising a fixedrack, a lock casing mounted upon said rack,

a pinioncontinuously engaged with'said rack,

afriction drum attached to said pinion, a friction coil spring normally contracted andmounted around said drum, cams located adjacent said spring adapted to expand said spring for the purpose of releasing said spring from around said drum, and a sash operating link attachedto said 6. A look for locking and operating a window sash and maintaining said sash in a 'locked'position comprising in combination, a -rack, ajlock casing slidably mounted on said racesm pinion engaging in said rack, a friction' drum' connected with said pinion, a cofilspring normally' engaging around saiddrum in a tightmanner and having hooked ends, cam levers attached to said casing and adapted toengagewith the hooked 'endsfof the said spring, a pivoted link attached to said casing andadapted t'o'be connected with the operating mechanism connected with the elevating mechanism of fsaid sash.

DANIEL L. CHANDLER.

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