US1829447A - Hood latch - Google Patents

Description

D. P. HYNES oct. 27, 1931.

HOOD LATCH Filed sepf. 8, 195o 2 Sheets-Sheet l D. F. HYNES HOOD LATCH Oct. 27, 1931.

Filed sept. a, 195o 2 Sheets-Sheet 2 Z7@ We 725%?" ,z'TeZZ l0. @7565 @y @LA/wl Patented Oct. 27, 1931 INETD STATES PATENT ori-ICE 4llIBRE-'ifl'i P. I-IYNES, OF CHICAGO, ILLINOIS, ASSIGNOR TO CHICAGO FOR-SING & MANU- FACTURING CO., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS HOOD LATCH Application led September 8, 1930. Serial No. 480,356.

My invention relates to a latch or closing means. One application thereof is as a hood latch for an automobile hood closure. One object is the provision of such a latch or closure which shall be eliicient and positive in its action and which shall be easily actuated. Another object is the provision ot a latch or locking device which shall yield-' ingly draw a lower edge of a hood closure downwardly and inwardly toward a limiting abutment. Another object is the provision of a closure which includes an interior locking device and an exterior control member adapted also to lift the closure to which the locking device is applied.- Other objects will appear 'from time to time in the course of the specilication 'and claims. I illustrate my invention more or less diagrammatically in the accompanying drawings, wherein Figure l is an inside view illustrating the device in locking position;

Figure 2 is a section on the line 2--2 of 'Y FigureY `Il Figure 3V is a similar section showing the parts in unlocked position;

Figure l is asection on the of Figure 3; and

Figure 5 is a section on the line 5 Figure 3.

Like parts are indicated by like symbols throughout the specification and drawings` Referring to the drawings, A generally indicates a trame of an automobile which is provided with an upwardly extending abutment A1. B indicates aside of an automobile hood closure, the lower edge B1 of which is adapted to be opposed eXteriorly to the abutment A1. Mounted on the inner face ot the hood closure B is the loclr assembly plate or support generally indicated as C. It may have the apertures C1 whereby it may be riveted, or bolted as at C2, to the inner face ot the hood. It includes also, at its lower end, an inwardly projecting flange 3 provided with an aperture C4. Its up er portion is im@ ,ft-i

Vapertured, as at C5, and adjacent said aperthe lever generally indicated as D. It may be mounted upon a` pivot pin D1 passing through the apertures C7. It includes an exteriorly extending lever arm or handle portion D2 which passes outwardly through the aperture C5 and through a correspond.- ing or aligning aperture D3 in the hood itself. D4 indicates an inner lever arm, the two arms forming in effect a bell crank lever. Pivoted to the outer end of the lever D4, as upon the pin or pins D5, is the latch assembly generally indicated as E. It may include the two side pieces El connected at their edge, as at E2. E3 indicates a guide member lixed, as herein shown, as in relation to the side pieces E1. A hook E5 is slidably mounted within the side pieces E1, which Jform a guide therefor. The hsok member includes the hook portion proper E6 and a spring housing member formed of the side elements E7 which are connected at their upper ends as at E8. A spring E9 is compressed between the member ES and the bottom El of the guide E3. It will be noted, as in Figure 2, that the hook or latch assembly so described passes through the aperture C4. The aperture is preferably of about the same width as the latch assembly but of somewhat greater length. Vhen the device is in locking position the guide E3 engages one end ot the aperture and the latch the other, but when the hook is in unlocked position the guide E3 lies at a level below that of the flange C3 and the latch assembly may move along the length of the aperture stopped in its downward movement by the lugs E11 E11.

Gr generally indicates a locking abutment positioned within the hood, and for example secured to the radiator flange or ledge or to the dash or cowl flange indicated as G1, upwardly projecting above the member A. I have herein shown as a locking abutmenta pin G2 mounted upon any suitable base G3.

It will be realized that whereas I vhave de- 'if ver vt;

my description and drawings to be taken as in ka broad sense illustrative or diagrammatic. .The use and operation of myinvention are as follows.: Y Y v In locking automobile hoods, I lind it desirableV to provide a hood latch which is positive in its action ,and which tendsto draw a lower edge of vthe hood closure downwardly andinwardly. IY find it also desirableto associate with abconcealed Vorinside-hood y ylatch an exteriorhandle or V.contr'oylmember vwhich serves to li'ftthe hoodafter the latchV Vhas been released;r

It will be seen from a consideration of Figures 2 and 3 that when the hook E6 is in. looking position, thefhandle D2 is at the lower. extremity Vof itsrotation.V rIhe spring E9 draws the lioolrf'E6 upwardly kagainst the b arfory pin' G22, The: inclination of the aXis or line along whichthis thrust is directed andthe inclination'of the hook E6, tends to drawl the-,loweredge of the-hoodv inwardly against the vabutment A1,.. as well as downwardly `toward the frame A.A When the Voperator lwishes to release lthe latch and to liftvthe hood, he merely lrotates the'leverD2`intothe position inv which it is shown in Figure 3.V He thereby moves the upper end of? the assembly E outwardly andv moves itslovver end inwardly.

QIV hen the leve-r D2' is. in the position in which it isshown in Figure, the hook Ee is also .out otv'ertical alignment withthe memberlG, The operator Vmay then merely continue hislifting movement, and the hood In reference to Figures Zandf and the aperture (lKir I prefer to employ. Vrictional washers D1.o 'D11 in association withthepivots D5' and D1 respectively.- Taking the I parts in the position in'which they are shown inFigureiS, aV downward movement of the handle `D2. not onlyliitsl theinner `arm D4? Y Vof the `lever but valso thrusts the latch as-' sembly forwardly .toward th e innerend of the apertureY C `This positively thrusts the hook .E6 beneatlithe lockingabutment G2, as showninfFigure 2, an'dfurther downward moveinentof thehandle D2 .draws the hook upwardly .into its locking engagement with the hook. yOn the other hand, in unlatch-ing the device, when the handleD2v is raised the frictional washers D10 will cause thelatch assembly to movetoward the 'opposite end i of the..apertures C4, beiorefpermitting relative rotationfof the'latchand lever.; vThereby the latch Vmember is positioned substantially outofvertical alignment withthe abutment orkeeperlG2 fand a direct upwardmovement otthe'hood be made without interfer- 1 ence between latch'andy abutment. The `frictional members'D?1 rserve-to reduce the prob-v abilityV of vunintendedmovement of the han# dle D2. .The frictionis suliicienty to prevg-mtv unintendedA .movemenp but Qinsuiiicient .to

hamper intended'manual movement of the handle, n

Referring to Figure 2, when the handle D2 is moved as far inwardly as it can go, a line drawn from the bearing pointlbetween the hook EG and the keeper G2 to the center of the bearing or; pivot D5 is past the center `of the main pivot or bearing D1, thus mak- Y ing the hook hold itself in locked position.

Referring to-'the action of thelowerpor l tion 'of they latchfassemblyQthelength' ofl the aperture C4 provides eXtra space for the 'latch'assembly Vhen the hook E'is moved lfrom the position in which it is shown in Figo ure?)y to'the'position in which it is shown in Figure 2, the hookE6 is movedvunder the keeper G2'befor'e there isany substantial upward movement ofthelatch assembly. 'The `frictional washers D10 have this ellect, since hook E6 toward the keeper 1G21 The mem4- ber E3 serves to guide the upward movement Y a whole"th'rougfhthe of the latch member as aperture o C4.' Y

I claim: u t, f 1. In a hood faste eror the ylike the lcombination with a hinged door member to'- be latched, of a keeper mounted within theihood,

a latch carried by the' -hooddoor andmounted4 therewithin vfor longitudinal and lateral movement in relation to the'keeper, guiding Y meanspositione'dinteriorlyofthe' door adapt ed to guide the movement of the latch, said guiding means being'A provided with an aperture of. a length substantiallygreaterthan thetliiclness of thelatchv extending transversely ofthe latch,` thelatch being freely movablelaterallywithinthe limits of. said aperture, and a unitary door handle and latch operating member positioned upon said door and eXtending'on each side thereof, and a frictional connection between said vmember" andthe latch, said frictional connection functioning to cooperatively move the latch by the handle withinthe limitsV v`defined by saidV apertureof'the guideJ-` t V2. In a hood fasteneror the like the combination with a hingeddoor member to bey latchedpof a" keeper mounted within the hood, allatchy `carried by thehood door and 'y mounted therewithin for' longitudinal and latenal. movement in relation gto the keeper,

guiding means positioned interiorly of the with an opposed portion of the first-mendoor adapted to guide the movement of the tioned guide.

latch, said guiding means being provided with an aperture of a length substantially greater than the thickness of the latch extending transversely of the latch, the latch being freely movable laterally within the limits of said aperture, and a unitary door handle and latch operating member positioned upon said door and extending on each side thereof, said latch being pivoted to said member, and a friction creating means interposed between said member and latch.

3. In a hood fastener, the combination with a hinged door member to be latched, of a keeper within the hood, a latch carried by the hood door and mounted within said door for longitudinal and lateral swinging movement in relation to the keeper, actuating means for the latch, including a unitary door handle and latch lever positioned upon said door and extending on each side thereof and pivoted for rotation in relation to said door about an axis generally horizontal, and positioned inwardly of the door and substantially above the keeper, said latch being pivoted to said door handle, within the door, a guide for said latch mounted on said door and positioned above said keeper and below the axis of the door handle, said guide being apertured, the latch passing through said aperture and being adapted to swing freely toward and away from the inner face of the door within the limits of said aperture, and additional guiding means, movable with the latch, adapted during movement of said latch to control the position of said latch in relation to the first-mentioned guiding means.

4. In a hood fastener, the combination with a hinged door member to be latched, of a keeper within the hood, a latch carried by the hood door and mounted within said door for longitudinal and lateral swinging movement in relation to the keeper, actuating means for the latch, including a unitary door handle and latch lever positioned upon said door and extending on each side thereof and pivoted for rotation in relation to said door about an axis generally horizontal, and positioned inwardly of the door and substantially above the keeper, said latch being pivoted to said door handle, within the door, a guide for said latch mounted on said door and positicned above said keeper and below the axis of the door handle, said guide being apertured, the latch passing through said aperture and being adapted to swing freely toward and away from the inner face of the door within the limits of said aperture, and additional guiding means movable with the latch, adapted during movement of said latch to control the position of said latch in relation to the first-mentioned guiding means, said additional means being adapted to eect a camming function in cooperation Signed at Chicago, county of Cook and State of Illinois, this 6th day of August, 1930.

DIBRELL P. HYNES.

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