US2030672A

US2030672A - Control device

Info

Publication number: US2030672A
Application number: US593675A
Authority: US
Inventors: Robert K Winning
Original assignee: Clum Manufacturing Co Inc
Current assignee: Clum Manufacturing Co Inc
Priority date: 1932-02-17
Filing date: 1932-02-17
Publication date: 1936-02-11
Anticipated expiration: 1953-02-11

Description

Feb. 11, 1936. R. K. WINNING CONTROL- DEVI CE Filed Feb. 17, 1952 Cttornegs Patented Feb. 11, 1936 Y I 2,030,672

UNITED STATES PATENToFFIcE CONTROL DEVICE Robert K. Winning, Wauwatosa, Wis., assigner to Clum Manufacturing Company, Milwaukee,A Wis., a corporation of Wisconsin Application February 17, 1932, Serial No. 593,675 12 claims. (o1. 'i4-soz) This invention relates to improvements in con- Bowden wire elements I8 and I9 are engaged totrol devices. It has particular application to the gether at their free end by a clamp tube 20 which type of push and pull control rod which is comhas portions 2| deformed into clamping engagemonly mounted on the dash of a motor vehicle ment with the Bowden wire elements, and also 5 for control of engine parts or other parts having held by correspondingly deformed. portions 22 5 to do with the functioning of the vehicle. of the tubular control rod 25.

It is the primary object of the invention to The said control rod 25 is reciprocable within provide a novel, inexpensive and simple means the barrel |2 and projects from the barrel through for locking'a control rod in a predetermined posithebore of plug 5 and the registering aperture of tion or positions subject to immediate release the finishing plate or shell I0. Toits outer end is 10 by manipulation of a push button threaded in fixed a knob 28 whereby the control rod and the the knob of the control rod. It is my purpose to Bowden wire elements to which it is connected provide an organization in which a single release may be reciprocated.

button may be ehnployed forV the actuation of vDetent means are used for xing one or more detent mechanism eiiective .in each of a pluralpredetermined positions of the control rod and its- 15 ity of positions of the rod. Other objectives oi' associated parts. A radial bore 2l in the disk 8 the invention will appear in the following disreceives a compression spring 28 acting on a ball closure thereof. V detent 28 in a direction tending to maintain the In the drawing: i ball in either of the apertures 30 or 8|, in the '2o Figure 1 is a view in axial section, of a device tubular control rod 25. When the ball registers 20 embodying the invention. with one of these apertures and engages itself Figure 2 is a fragmentary sectional detail in therein under the compression of spring 28, it the same plane illustrating the parts in different locks the control rod against reciprocation until l'positions from those illustrated in Figure '1. such time that-the ball is forced suiliciently from 25 Figure 3 is a. view in transverse section in the the aperture 30 or.'3,| to enable the movement of 25 plane indicated at 3 3 in Figure 1. the control rod to thrust the ball entirely aside. Like parts are identified by the same reference To'release'` the ball detent I provide at 35 a characters throughout the several views. release pin extending axially within the tubular A support typical of the usual instrument panel control rod and normally held in a retracted po- 3o is illustrated at 4 and is provided with an apersition by a compression spring 36 acting upon the 30 ture through which extends the threaded plug 5 push button 3l which is attached to the end upon the reduced extremityof which disk 8 is held of this pin. A tongue 38 pressed inwardly from by upsetting the material of the plug as shown at the control rod serves as a stopto engage shoulder 1. The disk 6 constitutes a head for the plug 39 land thereby to limit the outward movement which is held in clamping engagement with dash of the release pin with respect to the rod. This 35 4 by means of nut 8 and an interposed washer 8. shoulder is formed by one of two peripheral i? I'he device is exteriorly finished by means of a grooves 40 encircling rod 35 yand having beveled stamped shell I0, apertured in registry with the margins at 4|. These grooves register with opentubular bore through plug 5 and having its marings 38 and 3| respectively, and the depth of the 40 ginal portions formed about the margin of the groove determines the extent to which the ball 40 head or disk 8. 30 is permitted to enter the apertures in the con- The plug 5 serves as a mounting for a tubular trol rod. barrel I2 upon which the inner end portion I3 When the push button 31 is pressed inwardly of the plug is sleeved and compressed to retain by the operator against the compression of the parts in assembly. At the end of barrel I2 spring 36, the beveled surfaces 4| move across 45 remote from the plug I provide a tubular anchorapertures 30- and 3| and act as cams to thrust age fitting I5 into which are secured the inner out of holes 30 and 3| a. detent ball engaged and outer plies i6 and of a flexible sheath with either thereof. `The diameter of the ball through which the composite Bowden Wire eleis suiciently great so that when it is expelled ments I8 and I9 are reciprocable. The inner from the aperture to the degree made possible 50 element I9 preferably constitutes a stranded cable by the beveled cam surfaces' 4|, the center line of upon which a helical sheath is wound to mainthe ball will then be suiiiciently above the control tain the strands in predetermined relation and to rod so that the control rod itself will complete provide a smooth surface radially Vreciprocable the expulsion of the detent and will pass therewithin the inner ply i6 of the flexible sheath, The beneath. Figure 2 shows how the release pin 35 55l lifts the detent ball when the operator dev presses button 31. 1

Anlextension of theradial bore 21 across the diameter of the disk S serves to receive a guide pin which performs a dual function in that it locks or keys the disk to the plug 5 and has a reduced terminal portion 46 engaged inan elongated slot 41 in the control rod to permit the reciprocation of said rod non-rotatably with respect to its mounting. The pin 45 and spring 28 are both maintained in assembly with the disk 6 by means of the finishing plate I0.

It will be observed that any number of detent positions may be provided for this` device by simply multiplying the number of apertures 30, lud 3l, and providingl the release pin 35 with a corresponding number of related surfaces 4I'.

I claim: l. In a control rod assembly, the combination with an apertured mounting and a ball detent positioned in the aperture thereof, of an apervtured hollow control rod reciprocable within said mounting and with the walls of the aperture of whichsaid balldetent is engageable upon the registration of said-aperture with that of the mounting, and means carried by said control rod for initially moving said ball detent from :its rod engaging position, the wall of said rod being of a thickness suitable to move said ball from the aperture after initial movement of said ball by said means upon movement of said rod, but to engage said ball and positively prevent movement of said rod before initial movement of said ball by said means.

2. A control rod 'assembly comprising the combination with an axially bored mountingI member and a radially movable detent carried thereby, of a circumferentially apertured tubular control rod movable axially through said mounting, the aperture thereof being registerable with said detent for engagement thereby, and a releasing pin reciprocable within said control rod and provided with a cam surface engageable with said detent for the partial expulsion thereof from said aperture, the wall of said rod being of va. thickness suitable to move the `ball from the aperture when the ball has been partially expelled `from the aperture and the rod is thereafter moved.

3. A control rod assembly comprising the com.- bination with a mounting and a hollow control rod reciprocable with reference to said mounting and provided with detent'apertures, of a detent mounted in said mounting and receivable in the apertures in said rod in each of a plurality of positions of said rod, and a single detent releasing means reciprocable in said rod and effective in each of said rod positions to release the engagement, between said detent and? said apertures, the wall ofsaid rod being of a thickness suitable to move the detent f'om an aperture when the detent has been partially disengaged from said aperture and the rod is thereafter moved.

4. A control rod assembly comprising the combination with a mounting and an apertured control rod reciprocable with reference to said mounting, detent means carried by said mounting and alternatively engageable in a plurality of predetermined. positions of said con-trol rod with the apertures therein, and a. single detent releasing means carried by said control rod and mt-vable with respect thereto and provided with detent engaging cam surfaces effective in the course of such movementl to force said detent means from the rod restraining position in each therefrom when said rod is moved after release as aforesaid.

5. A control rod assembly comprising a mounting plug having a' head provided with a radial bore, a spring pressed detent reciprocable in said bore, a tubular control rod reciprocable through said plug and provided with a detent aperture registerable with said radial bore and adapted to receive said detent, a releasing pin reciprocable within said rod and carried thereby, and cam means connected with said pin and engageable with said detent to force it from rod 'restraining engagement in said'aperture, the wall of said rod being of a thickness suitable to move, the detent from the aperture when the detent has been partially disengagedv from the aperture and the rod is thereafter moved.

6. A control rod mounting comprising a threadved plug, a disk carried thereby and provided with a diametrical borethrough said-disk and plug,

a. detent reciprocable in said bore. a compression spring acting on said detent, a key in the portion of said bore opposite said detent, and a finishing shell applied to said disk and closing the ends of s aid bore about said spring and key.

7. A control rod mounting comprising a threaded plug, a disk carried thereby and provided withv a diametrical bore through said disk and plug,

a detent reciprocable in said bore, a compression spring acting on said detent, a key in the portion of said bore opposite said detent, and a finishing shell applied to said disk and closing the ends of said bore about said spring and key,

" and a control rod reciprocable through said plug of the control rod aperture, said detent being -adapted in one position, to deeply engage in the g control rod aperture to positively prevent movement of said control rod, and in another position to impositively engage in the control rod aperture to prevent accidental movement of said rod, and independently adjustable means for controlling the positioning of the detent in positive and impositive locking relation to said rod.

' ter with the detent receiving socket in certain positions of said rod, a detent in the mounting socket having a surface engageable with the walls 9. In a control rod structure. thecombination of amounting having a detent receiving sockettherein, a control rod reciprocable in said mounting transversely to said detent socket and provided vwith a detent receiving 'aperture' adapted to register with said socket in one position of the rod, a detent in the mounting socket adapted to engage the walls of the control rod aperture,

said detent, in one position, being adapted for positively engaging thewalls of said aperture to positively lock the same against movement in either direction, and also adapted in another position, for yieldingly engaging the walls of said rod aperture at less depth to impositively lock the rod against accidental movement, and adjustable means for manually controlling the positive and impositive locking relations `of the detent to the control rod.

10. A control device comprising in combina-- tion, an escutcheon adapted to be mounted on a are in normal relative position, means for urging said tumbler into cooperation with said part, means associated with the other of said lparts for releasing said tumbler upon relative movement between said parts, a control knob for actuating said control rod, and resilient means adapted normally to retain said parts in normal position.

l1. A control assemblycomprising an escutcheon tube adapted to be supported on a planular surface, a control knob having an axial chamber, a two part control element mounted in said eslcutcheon and reciprocable as a unit therein, said control element comprising a rod and a tubular member encompassing said rod, one of said parts being secured to said knob, the ends of said parts being spaced apart, and means for maintaining said parts in such positional relation comprisaoaova position with relation to ing a spring surrounding said rod and disposed within said chamber.

12. A control assembly comprising in combination, an escutcheon tube adapted to be supported on the dash panel of an automotive vehicle, a control rod mounted in said escutcheon tube and being reciprocable with relation thereto, said control rod comprising a shaft having a reduced portion, and a sleeve encompassing said shaft and having an opening therein overlying said reduced portion, a control knob, means for operatively connecting said control rod and sleeve to said may be reciprocated as a unit, a tumbler adapted to cooperate with said opening in said sleeve and being adapted to rest therein and upon the reduced portion of said shaft, and means associated with said shaft for ejecting said tumbler from the opening in said sleeve, said sleeve and said shaft being capable of limited relative longitudinal movement when said tumbler cooperates with said opening, and resilient means for resisting said relative longitudinal movement and for returning said sleeve and shaft to normal each other.

ROBERT K. WINNING.-

knob whereby said sleeve and said shaft