US1586372A - Road map and winding mechanism therefor - Google Patents

Description

May 25 Q 14926. l J ,.l. E. MANN ROAD MAP AND WINDINGMECHANISM THEREFOR Filed Feb. 16

raiser-ed Mey 25,1926.

Unirse stares PATE JOHN n. MANN, or ,snonoiirsir WAsHiNGToN. i

ROAD MAP AND WINDING MEGHANISM THEBEFOR.

i Application ilcd February lThis invention relates to improvements in road maps and winding mechanism therefor; more particularly to Vmechanism of that character especially designed for at* tachinent to the instrument board of an automobile and wherein the map is made up in strip form and is adapted to be wound on rollers and to be advanced, as required, beneath a glazed opening inthe housing.

The principal object of this invention resides in the provision of a device of the above ystated character 4wherein there are p -lel relationwithin the housing are two rolltwo map mounting rollers from and onto which the inap may be wound and which are both operable froin'tlie same drive wheel, through a novel driving mechanism which provides for driving` only the roller on which the map is being wound and without driving the other roller, thus avoiding the diliculty that would otherwise be eX- perienced on account of the variation in sizes of the two rolls as the map is wound back and forth. Y Y f In .accomplishing these and other objects of the invention, I have provided the iinproved details of construction, the preferred forms of which are illustrated in theaccompanying drawings, whereiny Figure 1 is a front elevation of a road map housing and winding mechanism em-v bodied by the present invention.

Figure 2 is a sectional view of the saineV particularly illust-rating the mounting of the map on the two winding rollers, and the means wherebythey are driven.

Figure 3j is a sectional view taken just within tlieside wall substantially on'the line 3-3 of Figure 2. l

Figure 4 is an end view lof one of the rollers and its winding wheel; showing the pawl carried by the latter and the notch inv the roller for receiving the pawl.

Referring more in detail to the drawings- 1 designates, in its entirety, a` housing in which the road map and winding mechanism is contained and comprising a back wall 2 having upper and lower end portions 3 extended beyond the ends of the housing' and provided with openings 4 .for receiv-v ing screws or bolts 5 whereby it may be mounted on the instrument board of an automobile or similar vehicle., The left hand side of the housingisk closed byv a wall 6 cast integrally witl'i the back and upper and lower end walls 7 and 8 respectively, and

the opposite side is closed by a removable 1e, 1925.y serial Nb. 9,1609.

door 9 provided at its lower edgewith a rib 10 adapted to seat within a groove 11 yin the edge of the base wall and having af clip 12 lined to itsupper end for engagement with astop orslioulder 13 on the top `wall to rthereby hold-the door in piace;

rlhe front ofthe housing is closed by a Vwall lei provided with an elongated opening 15* in which a transparent panel 16 of glass or other suitable material is litted'and thronghwhich the'i'nap may be observed Locatedin vertically spaced apart, paralers 17 kand 18 onA which theinap strip or web 19 is wound. rlhese rollers have trunnions 2O at their ends freely rotatable in openings 21 in the side walls@ and 9 and have slots 22 formed longitudinally in their central portions for receiving the ends of the yweb so as to prevent .it slipping durino a winding operation. There are also two small guide rollers 23 and 24 mounted in a similar manner-between the side walls closely to the upperl and lower ends of the opening 15 over which the strip is guided whilel being wound from one roller to the other and which vsupport the web closely to the glazed panel where it can be easily seen. v

The means which I have provided for winding the strip back and forth between the rollers comprises a wheel 26 that is fired on the inner end of a. short shaft 27, that is extended f rotatably through a bearin y 'opening 28 in the side wall 6 vat a point midway of the ends of rollers 17 and 18 and which has a winding cranlrl) fixed to itsV outer'end. Mounted rotatably on the ends of rollers 17 and 18 and frictionally engag- Ving the upper and lower edges of wheel 26 are relatively small wheels 30 `and 31, each of which has a pawl 32pivotally fixed to its outer face and adapted to be pressed by springs 83 into notches 34 formed in the rollers so as to provide a one way driving connection between the wheels and their rollers; the pawl being so arranged that theyk will effect the winding ofthe web onto the rollers but will permit the wheels to rotate freely ony the yrollers where it is ybeing unwound therefrom.

It is intended that the inap strip be made of a transparenter semitransparent matef rial and that an electric light, as designated llt) at 36, be located on the' base within the teasing; and previas?. with rentner Si which will cause the strip to be illuminated so that the nlap may be easily seen at night.

It is the intention, to provide road maps in strip form either from photographs taken from an aeroplane or from surveyors maps and to lay them out to an exact scale so that, if it is so desired, a mechanical means' may be used to operate the Winding mechanism. Such would consist, preferably, of a gear Wheel l ixed to the shaft 2T and adapted to be driven, after removal of crank 29, by connection with a Wheel of the vehicle or from the speedometer by a driving gear and shaft as designated at il in Figure l.

It is readily apparent that devices ol this character could be made up in various sizes, shapes and in designs suitable for different vehicles, and that various details ot construction could be made 1without departing from the spirit of the invention. it may be desirable to use toothed gears in place ot the smooth surfaced wheels 26, and 3l.

Having thus described my invention, what I claim as nenv therein and desire to secure by Letters-Patent, is:

l. A device ot the character described, comprising a housing provided With a front opening, a pair ot' rollers mounted in the housing on Which a strip may be Wound and advanced from one to the other closely beneath said opening; said rollers having pawl receiving notches therein, a winding` shaft rotatably mounted in a side Wall of the housing, a Wheel lined on the inner end oi said shaft, a crank fixed to the outer end thereot', Winding` wheels rotatably mounted on said rollers in trictional driviiig contact with said Wheel, pawls pivotally fixed to 'said winding` wheels and engageable with the rollers to effect a Winding connection, but permitting 'free rotation ot' the wheel on the roller from which the strip is being un- Wound.

i2. A device of the character described coniprising,` a housing` provided with a Vl'ront opening, a pair of rollers mounted in the housing on which a strip may be wound and advanced from one to the other closely bcneath said opening; said rollers having paul receiving notches therein, a Winding' shattrotatably mounted in a side wall ot the housing, a Wheel liizcd en the inner con or said shai't, a crank lixed to the outer end thereof', Winding wheels rotatably mounted on said rollers in l'rictional driving` Contact with said wheel, parvis pivotally fixed to said winding' wheels and engagcable with lthe notches ot' the rollers to clcc a winding' connection, but 'permitting tree rotation of the Wheel on the roller fromv which the strip is being untvound and a lamp located in the housing to illuminate the strip beneath said opening.

Signed at Everett, Snohomish County, lVashington, this 23rd day of January 1925.

JHN E. MANN.

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