US2739027A - Multi-position lock slide - Google Patents

Description

N. A. GUSSACK 2,739,027

March 20, 1956 MULTIPOSITION LOCK SLIDE Filed June 24, 1954 m ca INVENTOR Milka/77% 5255:1016 J BY J 7 ATTORNEY United States Patent 2,13 MULTI-POSITION LOCK SLIDE Nathan A. Gussack, Flushing, N. Y., assignor to Grant Pulley & Hardware Corporation, Flushing, N. Y., a corporation Application June 24, 1954, Serial No. 439,659

1 Claim. (Cl. 312-333) mit the drawer to lock in any position within its distance of travel.

More specifically, the drawer slide is provided with a rack or plate having a multiplicity of notches which permits a pin-locking arm to engage in one of the notches of the series of notches to lock the drawer or chassis in any desired position in its distance of travel.

For a fuller understanding of the nature and objects of the invention, reference is had to the following detailed description in connection with the accompanying drawing, in which:

Fig. 1 is a side elevational view of one of a pair 0 multi-position slides, shown in open position.

Fig. 2 is an end view, and

Fig. 3 is an enlarged top view taken from line 33 of Fig. 1.

Referring to the drawing, numeral 10 indicated a slide, comprising an outer channel 11 to which a drawer or chassis 12 is attached, an intermediate channel 13, a center trackrplate 14 which is attached to a cabinet wall 15, ball spacers 16 with balls 17 therein to facilitate movement of the outer and. intermediate channels and the drawer or chassis 12 attached to outer channel 11. All the above parts are well-known in the art.

A release rod 18 is movably attached to the upper flange 19 of the outer channel 11 by means of brackets 20 which have openings therethrough 'to permit easy movement of rod 18 parallel to the slide 10. Rod 18 has a collar 21 fixed by a set screw 22 and positioned between the two brackets 20. A spring 23 is seated upon rod 18 between the collar 21 and one of the brackets 20 exerting a constant pressure upon the collar 21. A transverse pin 24 through rod 18 acts to stop the travel of rod 18 when it contacts bracket 20. The outer end of rod 18 has a button or head 25. andthe opposite or inner end 26 is of reduced diameter and enters an opening in a bracket 27 which holds a bell crank 28 which is pivotally attached to bracket 27 by roll pin 29. .The lower arm 30 of bell crank 28 has a notch 31 within which a transverse pin 32, attached to end 26, is seated and operates bell crank 28 upon inward pressure upon head 25 causing the horizontal lock arm 33 of the bell crank 28 to raise the locking pin 34 out of one of the notches 35 of the locking notched member 36 which is attached to the upper portion of the center track plate 14. It is evident that by pushing inwardly upon the head 25 of the release rod 18, pin 34 will be disengaged from the notch 35 of the locking notch member or plate 36 thus I 2,739,027 Patented Mar. 20, 1956 "ice allowing the drawer or chassis 12 to be pulled out or moved inwardly of the cabinet. -By releasing the rod 18 and permitting the pin 34 to engage one of the notches 35, the drawer or chassis 12 will be locked in any position along the distance of travelof the slide.

The slide proper, comprising the various parts mentioned operate in a manner well-known in the trade. When the outer channel 11 is moved outwardly a certain distance, the short stop pins 37 engage the higher ball spacers 38, and the intermediate channel 13 then moves outwardly until the locking pin 39 abuts the inner ends of the inner ball spacers 16 at which time the slide cannot move outwardly any further.

When the drawer or chassis and the outer channel is moved inwardly, the screw or stop 40 enters outer notch 41 of the intermediate channel 13 and carries the intermediate channel 13 inwardly until the inner notch 42 of the intermediate channel 13 abuts the screw or stop 43 of the center track 14.

. It is obvious that the slide and its various parts can be made longer or shorter and the notched rack 36 made I of a desired length to permit locking of the drawer at any desired point in its outer or inner movement.

It is further obvious that various changes and modifications may be made in the details of construction and. arrangement of parts without departing from the general spirit of the invention.

I claim:

In a cabinet comprising an outer side wall, a horizontal central track'member secured to the inner surface of said wall provided with top and bottom ways; an intermediate channel member having the flanges thereof disposed in spaced overlapping relation respectively to said top and bottom ways; an outer channel member secured to a drawer member, said outer channel member having the flanges thereof disposed in spaced overlapping relation to the flanges of said intermediate channel mem- "ber; ball spacer members having balls therein disposed between said track member and the flanges of said intermediate channel member to provide anti-friction rolling contact between said flanges and said track; ball spacer members with balls therein disposed between the flanges of the outer channel member and the outer surfaces of the flanges of the intermediate channel member; a rack member having a plurality of notches thereon rigidly secured with said central track member; a latch lever pivotally mounted on said outer channel member provided with a laterally projecting locking pin to en: gage any of said notches; a push rod slidably mounted on said outer channel member and engaging an arm of said latch lever to pivot the same so as to release the locking pin from locking engagement with said rack; and

spring means engaging said push rod to yieldingly hold the push rod in position so as to urge the latch into locking engagement with said rack in any of said notches depending upon the position of said drawer member.

References Cited in the file of this patent UNITED STATES PATENTS

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