US1922261A - Doorlatch - Google Patents

Description

Aug.`15, 1933. Hf w. RIGHTMYER .DOORLATCH Filed OCT.. 27, 1930 HOL DEN W ,Q/GHTM VER UNITEDST l l bolt, andanother handleis positioned on the inl The end of the strap 19 is provided with a curved 60 25 end of which is fixed to the ease plato and tho be swung in a clockwise direction against the teng()` 4 35 usual handle Spindle for operating the same. ing means is blocked. It should be observed that 9o Patented ug. Y15, `1933 Y 1,922,261 Y n fnooRLA'ron "Holden W. Riglitmyer,`Toledo, Ohio, assigner to `The American Swiss Company, Toledo, Ohio, a Corporation of Ohio 'i l. Applicationocitbbr 27,1930. serialNo. 491,373V

1 solaims. (Creez-164) l 'I'hisinventionrelates to door latches, `but'more tension 15. `This connection between the strap particularly to door latches adapted for automo- 19 and the boltplate affords lost motion of the biles` in twhichztherhandle is positioned on `the strap in non-bolt retracting direction when the outside of the door for .withdrawing the latch latch bolt isin its projected or latcbis BGSiOn side of the door operable independently of the surface 22 engageable with a depending arm 23 outside handle for `withdrawing the latch bolt. of a substantially -shaped` lever 24. The lever An object of this invention is to produce a sim- 24 is pivoted at 25 'G0 the 03S@ Plate 17 and a Spring ple `and efficient door latch having the new and 26 having one end hooked into the embossed part 1o improved features of construction, arrangement 16 Yand. the ODDOSS 6nd ill'O the arm 23 0f the 65 and Operation hereinafter described. lever and the centralportion wound about the For purposes of illustration, but not of limitapvot 25, holds the lever in normal DOStiOIl Wth tion, the invention is shown in the accompanying the Opposite alm 27 in engagement With the emdrawing, in which:` l bossed part 16. The embossed part 16 forms a A The figure is aside elevation of the door latch, Stop for' limiting' th movement 0f the arm 27, 7o.

- the remote control mechanism being omitted, but thereby holding the ,depending alll 23 in the so much of` the mechanism being Shown as to proper position to be engaged by the rounded end enable those skilled in this art readily to build 22 0f the Strap 19' j and operate the same, The outer` end 28 of the slide member 13 is The illustrated embodiment of the invention C uYBd and the Out' @I ld O f the lever arm 27 is 75 c comprises a oase plate l having an uptumed foo@ similarly curve d. It will be obv1ous that when plate 2 through which projects the heed 3 of e the latch bolt 1s in its projected or latching po- Iatch boltf4, `which is normally held in latchingl smo @he S'Fm'pg may be moved m n0n"b91t or projected position by e spiral spring 57 one retracting directlon, whereupon the lever 24 will `f`ree end 6 of which abuts against a downwardly Sion @f th? Swing 26 S0 imam the arm 27 is Sub turned lug l on the bolt plate The latch bolt stantlallyin allgnment with the sl1dable plate 13. l 4 may `be retracted from outside by a 1.oll book 8, When the parts are in this position retraction of f which is journaled respectively on the case plate the latch bolt by the roll back 8 is prevented since l lA 1 androll back cover plate 9, the latter being any effort exemed by the T011 back to Wlthdmw 35 Y suitably secured by tabs 1o extending through the latch bolt 1s transmitted through the slidable openings in the case plate and bent over on the plate 13,150 the arm 27 ofthe lever 24 and thfme rear .Side thereo The 1oll book 8 is provided to the rivet 25. So long as the parts remain 1n with a non elreular opening 8a to receive the this position actuation of the outside bolt retract- An extension 11 on the bolt plato litormmales the pivot 25 is positioned directly in the line of adjacent the roll back 8. Interposed between` movement of the plate 13' the free end of the extension 11 and the roll back when the remote Control strap 19 1S moved 13.0 8 is an upturnedend 12 of a rectilinearly slid-` the right of the gute'the L'Shapefl lever 24 1s `4o ablelplate 13. The plate 131s guided in its longireleied and the Spring 26 returns 1t to normal 95 7 tudinal sliding movements by a headed pin 14 on poumon' After the lever 24 has returned to 'its l the case plate l cooperating with an elongate slot normal posmon further movement of the Strap 15 in the plate 13. The upper edge of the slidable 19 Serves to rtract the lath-b01t plate 13 also engages a Wall of the cover plate 9, A n Outstanding .Charactemstm of tlilsmventlon n.45.- Which assists in guiding the movement thereof. resides mth? pmmslon of a plate or Smma'r mem" 2100 The bolt plate 4 is formed with a rearward exbei" Whmh 1S movable over the-1atch bolt with tension 15, which is slidable over an embossed utlel back anfcbent evliwlch may .be actu 1 th a e y a remo .ey con ro e e ement for actuas t@ cured to the embossed Vpart 16 in cooperation movement of the Sad member thereby to dog or 105 block movement of the r ll k. W1th an elongate slot 18 formed in the extension It is to be understoog gli? Ithave Shown 'and 15. Conneted t0 the real end 0f the extensin described an embodiment of the invention which 15 is a remote control strap or link 19, which is is the best form known to me at the. present time, formed with a longitudinally elongate slot 20 inand numerous changes in details of construction, to which extends a headed pin 21 on the bolt exarrangement and operation may be eiected without departing from the spirit of the invention, especially as dened in the appended claims.

What I claim as new and desire to secure by Letters Patent is:

1. A door latch comprising a case plate, a tensioned latch bolt movable in the plane of said case plate, a roll back for retracting said latch bolt, inside means for retracting said bolt including a longitudinally movable plate having lost motion in non-bolt retracting direction when said bolt is in projected or latching position, and means for clogging said roll back by the lost motion of said plate, said means comprising a plate directly abutting said roll back on one side and said bolt on the opposite side whereby said bolt is retracted by said roll back through said plate,

means to guide movement of said plate over said case plate, and a bent level` movable by said lost motion into position to block movement of said plate.

2. In a door latch having a case plate, a spring-tensioned latch bolt movable in a direction parallel to the plane of said case plate, and inside and outside means for retracting said latch bolt, said inside means having lost motion in nonbolt retracting direction when said latch bolt is in latching position, a plate slidable over said case plate and disposed between said outside means and bolt, said plate being movable by said outside means, and a pivoted lever arranged to be moved in one direction by said lost motion into abutting relation to the opposite end of said slidable plate, thereby to dog said roll back.

3. In a door latch, a case plate, a spring-tensioned latch bolt movable in a direction parallel to the plane of said case plate, an outside operated roll back for retracting said bolt, inside operated means for retracting said bolt including a longitudinally movable link disposed substantially in alignment with said bolt and having lost motion relatively thereto when said latch bolt is in latching position, a plate slidable over said case plate and having av portion thereof disposed between said outside retracting means and bolt and movable by said outside means, and pivotally mounted means associated with said link and movable in one direction by said lost motion into abutting relation to said slidable plate, thereby to dog said roll back.

HOLDEN W. RIGH'IMYER.

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