US2507289A - Push and pull door handle - Google Patents

Description

May 9, 1950 K. A. WILLIAMS I 2,507,289

PUSH AND PULL DOOR HANDLE Filed July 18, 1947 Fig.2.

, I v 1 7 l I Fig.4

25 4 a F/g.3.

Kenna M A. Williams Patented May 9, 1950 UNITED PUSH AND FULL DOOR HANDLE Kenneth A. Williams, Cutler, Ohio Application July 18, 1947, Serial No. 761,772

4 Claims.

The present invention relates to latch operating means for doors such as are used in office buildings, dwellings and the like and has more particular reference to inner and outer lever-type handles wherein the outer handle is pushed toward the door and the inner handle is pulled away from the door in a manner to conveniently release a latch.

It is an object of the invention to provide simple and practical door handle means in which the handles are in the form of L-shaped levers for positive and convenient actuation results.

Another object of the invention is to provide lever-type handles which may be readily grasped for operation with ones hand, wet or greasy; a condition which often makes the ordinary door knob objectionable.

Another object of the invention is to provide push-pull handles which coordinate with the in and out swinging movement of the door, the outside handle being actuated by a push, whereby to enable one to push the handle in a manner to conveniently unlatch the door, when ones hands are otherwise engaged in holding packages, carrying buckets or so tied up as to prevent their use in grasping the handle.

Another object of the invention is to structurally, functionally and otherwise improve upon a mechanism required in satisfactorily obtaining the desired push-pull accomplishments.

Other objects and advantages will become more readily apparent in the following description of the accompanying illustrative drawings.

In the drawings, wherein like numerals are employed to designate like parts throughout the views:

Figure 1 is a fragmentary perspective view showing a portion of a door, the lock mounted in said door, and one of the latch actuating handles r levers;

Figure 2 is a fragmentary view, with parts in elevation, in which the latch control means is amply illustrated;

Figure 3 is a horizontal section on the line 3-3 of Figure 4, looking in the direction of the arrows;

Figure 4 is a view at right angles to Figure 3, the section being on the line 44 of Figure 3, also looking in the direction of the arrows.

Referring now to the drawings and particularly to Figure 2 the door, which is conventional, is denoted by the numeral 6 and said door is mortised as usual to accommodate the customarytype key controlled lock 1. It is understood, in this connection, that I am not interested in the features of the look but only in the latch bolt,

2 actuating means and door handle. To this end the horizontally slidable latch bolt is denoted by the numeral 8 and the latch 9 on the outer end is projectible and retractable, as is customary. The inner end of the bolt is provided with an elongated eye It having a suitable stabilizing guide H to facilitate correct operation of the bolt in the lock housing or casing. A supplemental mortise 0r recess i2 is provided in the door to accommodate an actuating disk I3, said disk being concentrically pivoted and thus mounted in place as at Hi. The disk is provided with arcuate slots l5 and it. One end of the slot I5 is formed into an abutment H which, is radial to the axial center of the disk and which constitutes a cam thrust surface. A similar abutment I8 is formed at an opposite end of the arcuate slot l6 and this likewise is radial to the axial center it and constitutes a second cam surface. A link i 9 constitutes an operating connection between the eye it and the disk and said link is eccentrically connected to the disk in order that rotation of the disk will impart reciprocatory motion to the latch bolt, this in an obvious manner. The numeral Zll designates a suitably shaped and anchored return spring for the latch bolt. This, as seen in Figure 2, has one end anchored and the other free end engaging beneath a boss 2 la on the bell-crank 2 l. The latter is pivotally mounted as at 22, and the vertical limb carries a stud 22a which, in turn, is operatively joined with the eye If). Any suitable spring return means 35 may be employed, obviously, for projecting the latch bolt 8 once it has been retracted by the handle means for door unlatching purposes.

Referring now to Figure 4 the outside door handle is denoted and distinguished by the numeral 23 and the inside door handle by the numeral 24. Mechanically both handles are the same in construction that is L-shaped and the long limb is denoted at 25 and the shorter limb at 28. The latter is pivoted as at 21 between spaced parallel outstanding ears 28 on a facing plate 29 mounted on the door. The handle 23 is provided with a stop 36 which checks the inward swinging movement. Also the handle 2 is provided with a similar check or shoulder 3| which strikes the face plate and limits the outward swinging of said handle. The short limb of the handle 23 is provided with an extension which provides a trip finger 32 and this projects into the slot l6 and ooacts with the cam surface or abutment 18. The handle 2t, that is the short limb portion thereof, is provided with an extension 33 and this provides a trip which extends into the slot I6 and coacts with the cam abutment l1. It follows that the handles are so mounted and so arranged in relation to the actuating disk I3 that they rotate the disk in a counterclockwise direction. It is evident too that by thrusting or pushing inwardly on the handle means 23, the trip 32 acts on the cam shoulder I8 and turns the disk l3 in a manner to actuate the link l9, eye It] and latch bolt 8. This results in a release of the latch nose 9. When the handle means is released the spring means 20 serves to return the latch to projected position. It is obvious too that by pulling the handle 24 in a direction away from the door, a similar result is attained. That is to say, the trip finger 33 then engages the shoulder or cam surface H, which results in counterclockwise rotation of the disk and actuation of the link and latch means. Needless to say, the latch is disengaged or released b a thrust or push against the handle means 23, this being on the outside or exterior of the door; and, the handle means 24 is operated by a pull in a direction away from the door, this being on the interior of the door. The dotted line showings in Figure 4 will assist in obtaining a full understand- 7 ing of this operational phase of this invention.

A careful consideration of the foregoing description in conjunction with the invention as illustrated in the drawing will enable the reader to obtain a clear understanding and impression of the alleged features of merit and novelty sufiicient to clarify the construction of the invention as hereinafter claimed.

Minor changes in shape, size, materials and rearrangement of parts may be resorted to in actual practice so long as no departure is made from the invention as claimed.

Having described the invention, what is claimed as new is:

1. Handle means for opening, closing and unlatching a hinged swingably mounted door wherein said door is provided with a spring returned projectible and retractable latch bolt slidably mounted for operation on said door comprising a lever-type handle adapted to be pivotally-mounted for operation on the exterior of the door, the said handle being designed to be pushed bodily toward the door for latch releasing purposes, a second lever-type handle also designed to be pivotally mounted on the interior side of the door, said second handle being adapted to be pulled away from the door for releasing the latch, and means for affording an operating connection between said handles and latch bolt embodying a rotary disk for concentric pivotal mounting on said door, and a link eccentrically connected to said disk and adapted to be connected with said latch bolt, said disk having independent diametrically opposite eccentrically disposed slots, said handles having trip fingers projecting into their respective coacting slots.

2. In a structure of the class described wherein a door is provided with a mortise-type latch including a projectible and retractable spring returned latch bolt and a supplemental mortise coacting with said latch, a disk concentrically pivoted for rotation in said supplemental mortise, a link connected to the inner end of said latch bolt and eccentrically connected with said disk, an L-shaped handle lever pivotally mounted on the exterior of the door, the short limb of said lever having an extension projecting into said supplemental mortise, the extension having a trip finger, said disk having a cam slot, and said trip finger extending into said slot.

3. The structure specified in the claim 2, together with a second lever-type handle pivotally mounted on the opposite side of said door, said handle also being of -L-shaped form and with said short limb thereof having an extension projecting into said mortise from an adjacent side, and said disk having a second cam slot, and said last named extension extending into said second named cam slot.

4. Operating means for a swingable door equipped with a mortise-type latch employing a spring projected, a handle retracted latch bolt in a casing comprising a disk adapted to be concentrically mounted on the door in operating relation to the casing, said disk being provided with diametrically opposite .cam slots, a link eccentrically connected at one end to said disk and adapted to be connected pivotally at its opposite end to the stated projectible and retractable latch bolt, a pair of substantially L-shaped handles adapted to be pivotally mounted on opposite sides of the door, means for pivotally mounting the handles in operative positions, the short arms of the respective handles being provided with ofiset trip fingers and said trip fingers being adapted to project into the cam slots provided therefor in said disk.

KENNETH A. WILLIAMS.

REFERENCES CITED The following references are 01' record in the file of this patent:

UNITED STATES PATENTS

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