US1897523A - Control handle - Google Patents

Description

Feb. 14, 1933.

R. MARPLE CONTROL HANDLE Filed 110v. 8, 1928 Patented Feb. 14, 1933 UNITED STATES PATENT OFFICE BOLLO MARBLE, F JACKSON, MICHIGAN, ASSIGNOR T0 HANCOCK MANUFACTURING CO.,

OF JACKSON, MICHIGAN, A CORPORATION OF MICHIGAN common HANDLE" Application filed November s, 1928. Serial No. 318,081.

This invention relates to improvements in control handles for latches and the like and more particularly to handles of the so-called of the free locking type for operatively connecting a latch spindle to an operatin han-.

dle so as to prevent locking of the spin le and handle together except in one angular relationship.

Another object is to provide a novel and extremely rugged means foroperatively connecting the handle proper of a free locking latch control device to its associated latch spindle.

The invention also aims to provide anew and im roved construction of and mounting for the ocki-ng member. in a control handle of the above character. 7

Still another object is to provide a new and improved spring device for actuating the locking member in a handle construction of the present type.

Other objects and advantages of the invention will become apparent from the following detailed description taken in connection with the accompanying drawing, in which Figures 1 and 2 are fragmentary sectional views taken along a plane substantially through the rotational axis of a control handle embodying the features of the present invention and respectively showing the parts disconnected from and connected to a latch spindle. Figs. 3 and 4 are sectional views taken along the lines 3-3 and 4-4 of Figs. 1 and 2.

respectively. v

While the invention is susceptible of various modifications and alternativeconstructions, I have shown in the drawing and will of the invention as expressed in the appended claims.

In its exemplary form illustrated in the drawing the improved handle is mounted on the outer side of a door 5 and arranged to rotate a spindle 6 which extends into the door for operative association with the latch by which opening of, the door is controlled. Actuation of the handle may be effected by gripping an elongated cross bar in the form of a shell 7 receiving intermediate its ends and secured to a tubular stem 8 of relatively small diameter. The end of the stem is seated in a socket provided by an escutcheon plate 9 secured to the door.

Extending through the stem 8 is a sleeve 10 of relatively small diameter constituting a.

casing in which are contained the parts for locking the cross bar 7 to the latch spindle 6.

The outer end of the sleeve terminates with- .in the shell 7 and has radially projecting lugs 11 which serve to secure the sleeve against rotation relative to the shell.-

The sleeve projects beyond the end of the stem 8 and has an integral flange 12 at its inner end with a square opening therein through which the squared portion of the spindle 6 may move axially to permit assembly of the entire handle unit from the open or outer end of the sleeve. An annular groove 13 cut in the spindle permits of relative rotation between the sleeve and the spindle when in assembled relation as shown in Fig. 1.

Integrally formed on the outer end of the spindle adjacent the groove 13 is a head 14 of cylindrical external contour journaled'in the sleeve 10 and abutting against the inner surface of the flange 12 so as to prevent withdrawal of the sleeve and the handle so longas the spindle is secured to the door against endwise movement. The head 14 is recessed at its end to form an annular flange 15in which apair of alined and longitudinally extending notches 16 and 16 are cut on diametrically opposite sides thereof. To make these notches of different lengths the end recess in the head 14 is formed with an in- 5 clined end surface 16 as shown in Fig. 1.

Two elongated slots 17 and 17 a of rectangular shape are cut in the sleeve 10 beyond the end of the stem 8, the slot 17 being longer than the slot 17 a and overlapping the head 14 so as to register with the notch 16 when the handle and the spindle 6 are in a single predetermined angular relationship. The slot 17* and the corresponding portion of the notch 16 constitute a diametrical guideway for a locking member in the form of a slide 18 whose overall length is somewhat greater than the outside diameter of the sleeve 10 and whose width longitudinally of the spindle axis is slightly less than the distance between the end of the flange 15 and the outer end of the slots.

. Two lugs 19 and 20 projecting longitudinally of the sleeve 10 are formed integral with the slide 18 and so spaced relative to each other that the lug 19 will be disposed wholly within the end recess of the head 14 and the lug 20 will be exposed externally of the head when the parts are in disconnected relation as shown in Fig. 1. The longitudinal length of the lugs is slightly less than the depth of their corresponding notches 16 and 16" into which the lugs may move as shown in Fig; 2 to provide a double lock for effectually locking the spindle 6 and the sleeve 10 against relative rotation. By thus blocking the spindle head at two points, an extremely rugged construction is provided by which the desired degree of resistance to torsional and shearing -stresses is obtained, at the same time permitting the overall dimen-' sions of the connecting parts to be reduced to a minimum. This feature is important in automobile handle constructions where there are fixed limitations on the sizes of the stem 8 and the escutcheon plate 9. Preferably-the lug 20 is longer than the length of the notch 16 in the head 14 so that it cannot lock the handle and the latch spindle together when the notch 16 registers with the slot 17, but only in such angular relation of the handle and spindle as will bring the notch 16 and the slot 17 into register, as is shown in Figs. 1 and 3. This is important in handle constructions for automobiles where it is desirable, in order to maintain a neat and artistic external appearance to have all of the door handles in a' predetermined position when the handles and latch spindles are locked together. Furthermore, such a handle is more convenient to operate because of the natural tendency to grasp 'the elongated end of the handle shell 7 and because it avoids feeling for the locked position of the handle relative to the spindle.

The parts of the connecting mechanism This means comprises which are disposed externally of the sleeve 10 are protected by a retainlng member 21 seated in a recess 1n the door 5 and having a cylindrical portion telescoping with the escutcheon plate 9 and a flange 22 abutting against the end of the sleeve.

A novel means is rovided for urging the slide 18 into its locliing position (Fig. 2).

form of a relatively thin strip ofresilient metal disposed externally of and extending substantially around the sleeve 10. The clip engages the lug 20 substantially intermedlate its ends, this relation being maintained by a lug 23 formed by an indentation in the c ip and extending into a recess 24 in the lug 20. The spring is initially stressed so that it tends to contract and urge the slide 18 inwa'dly toward the position shown in Figs. 2 an 4.

The locking slide 18 is arranged for actuation by a key controlled means in the form of a barrel lock 25 rotatably mounted within the sleeve 10 and having at its inner end an eccentric stud 26 disposed in an elongated recess 27 in the slide 18. The usual tumblers 28 are carried by the barrel lock and are spring pressed outwardly so as to enter a longitudinal slot 29 in the sleeve 10 when the barrel is rotated from the position shownin F fgs. 2 and 4 to that shown in Figs. 1 and 3,

a spring clip 23 in the the barrel being thereby locked against rotation within the sleeve. In this movement the stud 26 acts asa cam on the end surface 30 of the recess 27 and moves the slide against the action of the spring 23 to position the lug 20 externally of the notch 16 and the lug 19 within the end recess of the head 14. In this position the sleeve 10 is free for rotation relative to the spindle head 14. When the barrel 25 is again released by the key the slide 18 tends to move inwardly under the action of the spring 23 and actually moves into lockmg position (Fig. 2) when the notch 16 registers with the lug 20.

The barrel lock is closed at its outer end by the usual cap 31 and has a hole-32 through which the proper key can be inserted to withdraw the lock tumblers from the slot 29 and permit turning of the barrel within the sleeve.

The parts of the handle thus provided are of extremely simple and inexpensive construction and can be conveniently assembled as a unit ready for mounting in a door construction. In theassembling operation the latch spindle 6 is inserted in the sleeve 10 from its open end, the squared portion'being drawn through the end portion in the sleeve. Then with the spindle rotated to bring the notch 16 of the head into register with the slot 17 the slide is inserted, thereby locking the spindle against axial movement in the sleeve. With the sfipring clip 23 placed around the sleeve, the nal operation is to "enter the barrel lock from the open end of the sleeve with anv expansible spring clip 33 mounted in an annular groove 34 in the barrel. At the inner limit of travel of the barrel, the clip 33 expands into an internal notch 35 in the sleeve 10, thereby locking the barrel against withdrawal.

When mounted on a door or other closure it will be apparent that the handle thus described will be connected to the latch spindle so as to permit operation of the latter only when the slide 18 is positioned as shown in Figs. 2 and 4; In its other position (Figs. 1 and 3) the slide is locked in the sleeve in position to maintain the handle disconnected I from the spindle. Unauthorized opening of the door is thus prevented and since the handle is free to rotate no damage can be done to the operating parts by unauthorized persons.

I claim as my invention: 1. A control handle for latches and the like having, in combination with a rotatable spindle, a tubular casing having a pair of diametrically alined openings, an integral head on said spindle journaled internally of said casing and having a notch arranged to register with one of said openings to form a transverse groove, a locking member slidably guided in said openings and movable into either of two positions in either of which one end of the member projects beyond the' periphery of said casing, and means rigid with said member and positioned in said notch and one of said openings when said member is in one position and positioned out of said notch when said member is in its other position.

2'. A control handle for latches and the like having, in combination with a rotatable spindle, a tubular casing having a pair of diametrically alined openings forming a transverse guideway, a locking slide mounted for reciprocation 1n and having a length greater than said guideway, a head integral with said spindle and rotatably mounted in said casing said head having a notch, means rigid with said slide and positioned for movement 'into said. notch when the latter is, by relative rotational movement betweensaid casing and said spindle, brought into register with said guideway, and key controlled means for governing the actuation of said slide.

3. A control handle for latches and the like having, in combination with a rotatable spindle, a casing having a radial opening, a head within said casing rigid with said spindle and having a notch adapted toregister with said opening, a slide reciprocable transversely of said opening and said notch and adapted when in oneposition to lock said head and casing against relative rotation and when in another position to free said head,

and a contracting band of resilient mfial en circling said casing externally thereof and like having, in combination with a rotatable spindle, a tubular casing having a pair of diametrically alined openings, a locking slide having its opposite ends projecting through said openings, a head within said casing .rigid with said spindle and adapted to be locked against rotation within the casing when said slide is in one radial position and to be freed for rotation within thecasing when the slide is moved into another radial position, and a spring band engaging one end of said slide and encircling said casing but spaced longitudinally from the opposite end of said slide.

5'. A control handle for latches and the like having, in combination with a rotatable spindle, a tubular casing, a head on said spin- 7 dle journaled in said casing and withdrawable from said casing by endwise movement of said spindle, an integral flange on said cas-c ing preventing removal of the casing from the spindle, and a member reciprocable trans versely of said casing to lock the casing and head against relative rotary and axial movements but adapted in one position to free said head and casing for relative rotary movement.

6. A control handle for latches and the like having, in combination with a rotatable spindle, a sleeve having two diametrically disposed slots, a hollow head rigid with said spindle and 'journaled in said sleeve, said head having two diametrically disposed notches adapted to register with said slots, and a slide reciprocable transversely of said slots and having two lugs each positioned in one of said notches when said slide is in one position and out of the notches when said slide is in another position.

' 7. A control handle for latch-es and the like having, in combination with-a rotatable spindle, a sleeve, a head rigid with said spindle and journaled in said sleeve, a slide recip' rocable transversely of said sleeve and providing a two point locking engagement between said sleeve and head'when in one position and permitting relative rotation between the head and sleeve when in another position,

within and externally of said head in'one position of said slide and in said notches in another position of the slide, and key controlled means governing the movement of said slide.

9. A control handle for latches andthe like having, in combination with a rotatable spinlike having, in combination with a rotatable 1n said casing and having two radially spindle, a cylindrical casing into which said spindle extends, a radially movable member protruding from said casing and operable .to lock-said spindle and said casing together, and a contracting spring band partially encircling said casing and having a portion intermediate its ends engaging said member to urge the member inwardly.

11. A control handle for latches and the like having, in combination with a rotatable spindle, a casing into which said spindle extends, a member rigid with said spindle withspaced notches, a locking member movable transversely of said casing and adapted to enter said notches, in only one angular relationship of the casing and spindle whereby to lock the spindle and casing against relative rotation.

12. A control handle for latches and the like having, in combination with a rotatable spindle, a casing into which said spindle extends, a member rigid with said s indle within said casing and having two ra ially spaced notches, a locking member movable transversely of said casing and.having two lugs one adapted to enter one of said notches and the other adapted to enter the other notch when said casing and spindle are in a predetermined angular relationship, said first' mentioned lug being prevented from entering said last mentioned notch when the latter is positioned opposite the lug.

13. A control handle for latches and the like having, in combination with a rotatablespindle, a casing mto which said spindle extends, a member movable transversely of said casing and adapted when in one position to engage said spindle at two points spaced transversely with respect to said spindle and when in said position to engage said casing at two points spaced transversely with-respect to said spindle and thereby lock the spindle and casing against relative rotation, saidmember being adapted for locking engagement only in one angular relationship of said casing and spindle.

14. A control handle for latches and the like having, in combination with a rotatable spindle, a sleeve enclosing one end. of said spindle, a' locking member movable wlthm said sleeve between two positionsand adapted when in one position to lock said sleeve and spindle against relative angular movement and when in the other position to free said sleeve for rotation about the spindle, a spring tend' lock for actuating said member rotatable within said sleeve and having means engaging said sleeve when said member is in said mg to move said locking member into said first mentioned position, and a barrel escutcheon plate secured to the outside of said door and having anoutwardly projecting annular flange, a tubular casin having a handle at one end, the other cm? of said casing projecting through the opening defined by said flange, a spindle rotatably j ournaled in said casing within said flange and pro ecting from the casing into said door for connection with the latch to be operated, a locking member within said casing and movable into one position to lock said spindle and casing against relative angular movement and into another position to free them, spring -means disposed within the annular space between said casing and said flange and acting to urge said member toward one of said positions, and a key controlled lock operable from the outer end of said casing and arranged to 'move said member into the other of said positions.

. 16. The combination with a handle having a shank and a lock actuating spindle, of a bolt upon said shank and movable transversely thereof, and a driving member non-rotatably secured to said spindle, said driving member having an outwardly opening slot for engaging said bolt in one of its positions of adjustment and said bolt having an inwardly opening slot for registering with said driving member in another of the posi-' tions of adjustment of said bolt.-

- 17. The combination with a handle having a shank and a lock actuating spindle, of a bolt uponsaid handle and movable transversely thereof, and a driving member non-rotatably secured to said spindle, said driving member having a slot for engagement with said bolt in one of its positions andsaid bolt having a slot for registering with said driving member'in another of the'positions of adjustment of said bolt. v

' In testimony whereof, I have hereunto aifixed my signature.

e p ROLLO. MARPLE.

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