US1909210A - Doorlatch - Google Patents

Description

D. MILLER May 16, 1933.

DOORLATCH 2 Sheets-Sheet 1 Filed May 1930 25 I I I INVEN OR J0 r)" Midi w" ATTORNEYI-f) y 1933. D MILLER 1,909,210

' DOORLATGH Filed May 19, 1930 2 Sheets-Sheet 2 INVENTOR Jar) M522 6) mm W ATTO RN EY,S

Patented May 16, 1933 UNITED STATES PATENT. OFFICE i noun mnmm, or DETROIT, mcnmm, nssrenoa mo THE pm comm, or ronnno,

' omo, a conrona'noiq or omo DOOR-LATCH Application med. Kay m, 1930'. Serial No. 453,740.

The invention relates to latches and'more particularly latches for motor vehicle doors.

. The invention has for one of its objects to provide a latch in which the latch bolt may 6 be retracted by both inside and outside manually operable means and in which the outside means may be rendered ineffective in its operation by means controlled by the inside means. The invention has for further bolt is retracted from the outside manually operable means through an intermediate retracting member, while the latch bolt is retracted. from the inside manually operable means independently of the retracting memher; to provide, a latch in which the retracting member may remain in operative relation to the outside manually operable means and the outside means is rendered effective or ineffective in its operation by a control member adapted to form a fulcrum or to be rendered inoperative; to provide a latch in which the control member is movable into the ath of movement of the retracting member or out of its path of movement to control the operativeness of thenretracting member; and to provide a latch in which the retracting member is yieldably maintained in operative relation to revent rattling. The invention has for a urther object to lpiovide a latch in which the retracting memr is maintained in operative relation and the latch bolt is retained in extended posi tion by a common means.

With these and other objects in view, embodiments of my invention are shown in the accompanying' d'rawings and will be more fully tion defined in the claims.

Referring to the drawings Figure 1 is a side elevation of a latch showing an embodiment of my invention;

Figures 2 and 3 are cross sections, respectively, on the lines 22 and 33 of Figure 1; I Figure 4 is a view similar to Figure 1, showing another embodiment of my invention;

Figure 5 is a cross section on the line 5-5 of Figure 4.

objects to provide a latch in which the latch ereinafter described and. the inven- The present latches showing embodiments of my invention are designed particularly for use in doorsof closed motor vehicles and the latch illustrated in Figures 1, 2 and 3 has the case plate 1 with the transverse flange 2 at its front edge, which latter is formed with the rectangular aperture 3 and the transverse ear 4 for receiving and guiding the bolt 5. This bolt has the nose 6 which slidably engages the case plate 1 and extends through the aperture 3 and is guided by the ear-.4. The bolt also has the body 7 which is preferably formed of sheet metal and which is riveted to the no se-6. This body has the longitudinally extending slot 8 through which extends the shouldered pin or rivet 9 secured to the ear 10 struck out from the case plate, the rivet serving to guide the bolt. The body has at its rear end the transverse flangell which is engageable with the rear edge of the case plate 1 to limit the movement of the bolt toward its extend ed osition.

or retractingthe bolt, I have provided inside and outside manually operable means. The inside retracting means includes the link 12, which is suitably connected at one .end to a remote control handle and which is connected to the body 7- of the bolt by means of the shouldered pin or rivet 13, which latter extends through the slot 8. The outside means includes the roll-back 14 having the front end of its hub 15 'ournaled in, the case plate above the bolt an the rear end of its hub journaled in the cover plate 16, this cover plate being spaced inwardly from and pivotally connected to the bolt by the shouldered pm or rivet 19. This lever is located between the cover plate 16 and the case plate 1 and also between the body 7 of the bolt and the case plate and extends upwardly from the bolt into the path of movement of the roll back 14. 20 is a spiral spring located between the cover plate and the case plate and having one end anchored to the case plate as by means of the struck out ears 21 and its free end engaging the rear edge of the retracting member 18 to yieldably hold this retracting member against the roll-back l4: and to also yieldably urge the bolt to its extended position. 1

For the purpose of rendering the outside retracting means ineffective in its operation so that rotation of the roll-back 14 will not retract the bolt 5 and also for the'purpose of rendering this outside retracting means effective, I have provided the control member 22, which is in the nature of a bell crank pivotally connected intermediate its ends to the case plate 1 by the pivot 23. The lateral portion 24 of this control member in one position thereof extends in the path of movement of the retracting member 18 and is engageable with the rear edge 0 its'upper end to form a fulcrum about which this retracting member may swin'gupon actuation of the roll-back 14. This lateral portion in another position of the control member is adapted to extend above and to clear the retracting member upon actuation of the rollback. The dependlng portion 25 of the control member extendsbetween the body 7 of the bolt and the case plate and is bifurcated to provide the slot 26, through which extends the rivet 13. The arrangement is such that in the normal position of the inside retracting means, including the link 12, the control member is held in the position shown in Figure 1 so that its lateral portion forms a fulcrum for the retracting member, but upon movement of the link in a forward direction or in a non-bolt retracting direction this link through the rivet 13 swings the control member about its pivot in a clockwise direction to raise the lateral portion ofthis control member to clear the retracting member, at which time rotation of the roll-back merely effects swinging of the retracting member 18 about its pivot 19 and does not retract the bolt. 4

In the modification shown in Figures 4 and 5 the general arrangement of parts is the same, but the control member 27 instead .of being pivoted to the case plate 28 slidably engages the same and is guided by I means of the cars 29 struck out from the caseplate and engaging the front and rear edges of the depending portion 30 of-the control member. 31 is a cover plate for engaging the inner side of the control member. The lower end of this depending portion 30 is upwardly and, rearwardly beveled at 32 to provide an inclined face engageable with the shouldered pin or rivet 33, which extends through the bolt 34 and is connected to the link 35 of the inside retracting means. The lateral portion 36 of this control member in one position of the control member is adapted to form a fulcrum for the .re tractin member 37 and in the raised position 0 the control member is adapted to clear the upper edge of the retracting member to render thelatter ineffective. It will be seen that when the link 35 is in its lowermost position the parts are so located that the outside retracting means, including the roll-back 38, is operative to effect retraction of the bolt and that upon movement of the link in a forward direction or in a nonbolt retracting direction the control memher is raised to render operation of the outside retracting means ineffective.

For yieldably. holding the control member in its lowermost position and at the same time yieldably holding the control member in engagement with its roll-back and further urging the bolt to its extended position, I have provided the spiral spring 39, which is located between the cover plate 31 and the case plate 28 and is secured to the case plate intermediate its ends by the ears 40 struck out from the case plate. The two free ends of this spiral sprmg respectivel engage the rear edge of the retracting member 37 and the depending portion 30 of the control member.

What I claimas my invention is:

1. In a latch, a latch bolt, retractin means for said bolt including inside an outside manually operable means, a retracting member interposed between said outside retracting means and bolt and movable angularly with respect to the latter, and means separate from said retracting member and bolt and controlled by said inside retracting means operative in one position of the latter to form a fulcrum about which said retracting member may be moved angularly and inoperative in anotherposition of said inside retractin means to form a fulcrum for said retractmg member.

2. In a latch, a latch bolt, retracting means for said bolt including inside and outside manually operable means, a retracting member interposed between said outside retracting means and .bolt and movable angularly with respect to the latter, and a control member separate from said retracting member and bolt and associated with said inside retracting means adapted in normal. position. of said inside retracting means to form a fulcrum about which sai retracting member may move angularly and adapted upon manipulation of said lnside retracting means in a non-bolt retracting direction to be rendered inoperative in forming a fulcrum for said retracting member.

3. In a latch, alatch bolt, retracting means for said bolt including inside and outside manually operable means, a retracting member interposed between said outside retracting means and bolt and movable to form a fulcrum about which said retracting member may move angularly, said control member being movable upon manipulation of said inside retracting means in a non-bolt retracting direction to render saidretracting member inoperative.

4. In a latch, a latch bolt, retracting means for said bolt including inside and outside manually operable means, a retracting member interposed between said outside retracting means and bolt andmovable angularly withrespect to the latter, and means separate from said retracting member and bolt and controlled by said inside retracting means-and operative in one position of the latter to form a fulcrum about which said retracting member may move angularly and in another position to clear. said retracting member.

5. In a latch, a latch bolt, retracting means for said bolt including inside and outside manually operable means, a retracting member interposed between said outside re.- tracting means and boltand pivotally connected to the latter and extending in the path of movement ofthe former, and a movable control member associated with said inside retracting means adapted in normal position of said inside retracting meanS to form a fulcrum about which said retracting member may swing and upon manipulation of said inside retracting means in a onbolt retracting direction be rendered inoperative in forming a fulcrum for said retracting member. v

6. In a latch, a latch bolt, retracting means for said bolt including inside and outside manually operable means, a retracting member interposed between said outside retracting means and bolt and movable angularly with respect to the latter, said inside retracting means being adapted to retract said bolt independently of said retracting member, and means separate from said retractlnf member and bolt and controlled by sai inside retracting means andopera= tive in one position of the latter to form a fulcrum about which said retracting member may move 'angula-rly and inoperative in another position of said inside retracting means to form a fulcrum for said retracting member.

7. In a latch, a latch bolt, retracting means for said bolt including inside and outside manually operable -means, a retracting member interposed between said outside retractmg means and bolt and movable angularly with respect to the latter, and means separate from said bolt, inside and outside retracting means and retracting member and associated with said inside retracting means adapted upon manipulation of the latter in a non-bolt retracting direction to render said retracting member inoperative.

8.- In a latch, a latch bolt including inside and outside manually operable means, a retracting member interposed between said .outside retracting means and bolt and pivotally conected to the latter and extending in the path of movement of the former, said inside retracting means being adapted to retract said bolt independently of said retracting member, and means separate from said bolt and inside and outside retracting means and associated with said inside retracting means adapted in one position of the latterto render said retracting member operative and inanother position torender said retracting member inoperative. 1 g

9." In a latch, a latch bolt, retracting means for said bolt ineluding inside and outside manually operablemeans, said outside manually operable means including a roll-back, a retracting member interposed between said roll-back and bolt and extending in the direction. of movement of-the formervand pivotally connected'to the latter, and a movable control member asso ciatedwith said inside retracting means forming in one position of the latter a fulcrum for said retracting member upon actuation of said roll-back and in another position of said inside retracting means refor said retracting member having a portion movable to a position to be engaged by said retracting member upon movementof the latter to form a fulcrum therefor, and.- niovable to a positionlbeyondsaid retracting member to clear the same.

- 12. In a latch, a latch bolt, inside and outside manually operable retracting means for said bolt, a retracting member interposed between said outside retracting means and bolt and having apermanent fulcruming engagement with the latter, and means controlled by said inside retracting means and operative in onepositionpf the latter to form a fulcrum about which said retracting member -may move upon actuation thereof by said outside' manually operable means moving the fulcrum for the'retracting memy j and in another position to clear said retracting member.

13; In a latch, a latch bolt, inside and outside manually operable means for re- 5 tracting said bolt, a retracting member extending transversely of said bolt and hav ing a portion operatively connected therea to, said retracting member being interposed between said outside retracting means and bolt, and means controlled by said inside re tracting means and movable thereby to a position to form a fulcrum for said retracting member at a point spaced longitudinally thereof from the operativeconnection between said retracting member and bolt.

14; In a latch, acase plate, a latch bolt, .inside and outside manually operable retracting means for said bolt, a retracting member interposed between said outside retracting means and bolt and movable angularly with respect to the latter, and a member pivotally mounted upon said case plate and controlled by said inside retracting means, said pivotal member being operative in one position of said inside retracting means to form a fulcrum about which said retracting member may be moved angularly and being inoperative in another osit1on of said inside retracting means to orm a fulcrum for said retracting member.

15. In a latch, a case plate,'a latch bolt, inside and outside manually operable re tracting means for said bolt, a retracting member interposed between said outside retracting meansand bolt and movable angularly with respect to the latter, and a member bodil slidably mounted upon said case plate an controlled by said inside retract ing means, said bodily slidable member be 40 ing operative in one position of said inside retracting means to form a fulcrum about which said retracting member may be moved angularly and being inoperative in another position of said inside retracting means to form a fulcrum for said retracting member. In testimony whereof I afiix my signature.

DORR MILLER.

Images