US1609342A - Latch - Google Patents

Description

7 ,191% 1,609,342 A. F. WINTERS ET AL LATCH Filed Jan. 19 1925 -2 Sheets-sheet 1 A. F. WINTERS ET AL LATCH Dec. 7 1926. 1,609,342

Filed Jan. 19. 1925 2 Sheets-Sheet 2 Hkexcmm FMX fers Patented Dec. 7, 1926.

ALEXANDER r. WrNrERs AND BAsIL n. CRAMPTON, or GRAND RAPIDS, MICHIGAN. LATCH. l

Application mea January 19, 1925. serial No. 3,293.

This invention relates to latches of the Fig. is an inverted perspective View of type adapted to be mounted on swinging 'the latch bolt. v doors. One place where the latch is very Fig. 6 is an inverted perspective of a numuseful is in connection with refrigerator ber to which the latch handle is pivotally 55 6 doors, it being very desirable that a refrigerconnected.

ator door be held tightly shut and that Fig. 7 is an inverted perspective of the strains upon the door hinges or upon the latch housing. fastening meansemployed to attach the-latch Fig. 8 is an inverted perspective of the tothe door shall be eliminated as much as latch handle, and 60 10 possible. Fig. 9 is a perspective View of the .pivot The present invention is concerned with used to pivotally connect the latch handle 'latches of the' sliding bolt type.` It is a prito the members shown in Fig. 6. mary object and purpose of the invention Like reference characters refer ,to like to make a latch of this type in which, when parts in the different figures of the draw# v65 the bolt is retracted so as to free the same ings.

from its -keeper connected to the adjacent The door 1 may bel of any suitable condoor casing or j amb, said bolt will automatistruction and is adapted to close a door opencallybe heldin'retracted position and stay ing surrounded by the door casing, one side in such position until thev door is again of whichis indicated at 2. It isunderstood 70 'closed. v'With the closing of the door, means that, in refrigerators, the door is hingedly are employ d to automatically disassociate mounted at one vertical edge and a latch is the bolt from the latching means which has mounted adjacent the opposite free vertical held it in retracted position, freeing it for edge' of the door. The latch is adapted to outward'movement and wedging engagement engage with the keeperr which is mounted on 75 with the keeper to thereby press the door the door casing or jamb 2 in a position to into tightly closed position. A further obcooperate with the latch bolt. ject and purpose of the invention is to pro- In the construction of the latch which is vide a construction of this character in attached to the door. a latch housing of sheet which a number of the parts entering into metal, preferably, is used having a raised -80 3" the construction of the latch may be made portion which includes a top 3 with inas stampings by use of suitable dies with av wardly extending` parallel sides 4 turned great reduction in the cost of manufacture. outwardly at their inner edges and formed Various other objects and purposes thanl into attaching flanges 5, through which those specifically enumerated will appear screws may pass through suitable openings as understanding is had from the following to permanently connect the housing to the description taken in connection with the ac.- door. The housing is also provided with companying drawings, in which, ends 6 and 7 integral with the remainder of Fig. 1 isa section taken through the ragsaid housing, a rectangular or substantially mentary adjacent portions of the door and square opening 9 being made through the end 90 40 door jamb, the latch attached to the door 7, and a circular opening 8 through the end also being shown in section and the keeper 6` as best shown in Fig. 7. At one end, or on the door jamb partly in section. near said opening 9 a portion of the top 3 Fig-2 isa view similar to Fig. 1, showing is pressed outwardly somewhat, as indicated the bolt retracted and the door in the act at 10, through which a somewhat elongated 95 of moving to closed position. rectangular opening 11 is made, at each side Fig. 3 is a transverse section through the of which an elongated slot 12 of substanlatch, the plane of the section being substantially the same length as theopening 11 is tially at the'pivotl of the latch handle. cut. j

Fig. 4 is an inverted perspective view of Within the housing made as thus de 100 5 an element which is located within the latch scribed, a member made of sheet metal is housing and which carries the latch bolt. adapted to be located, the same consisting of ing 11 before described. Two ears 15 extend end of the top 3 of the housing,

a' base 13 with an elongated opening 14 therethrough of the same size as the openatright angles from the base 13, one at each side edge thereof. These ears pass through the slots 12 and the base 13'seats inthe recess made by elevating the section 10 at one the openings 11 .and l14 coming into direct conjunction and aligningwith each other. A handle, lfb-preferably cast as one piece is provided, between its ends being formed `with projecting bosses y17 from which a downwardly and inwardly extending finger 18 projects. The bosses pass between the outwardly projecting ears 15 which extend beyond the top 3 of the housing, and the finger 18 extends inwardly through the openings 11 and 1,4, the handle 16 lying aboveand in a plane paralleling the length of the housing, as shown in Fig. 1. A pivot pin 19 passes through suitable openings in the .ears 15 and the lever 16 which opening in the lever 16 is made through said bosses 17. The pivot pin may be ofany suitable character. It is shown as including a pin threaded at one end to receive a nut, but it is evident that the threaded end and nut may bereplaced by forming a riveted head if desired.

A further element used inthe construction ofthe latch, shown in Fig. 4, is made from a single piece of sheet metal, including an elongated base 20 which, at one end, has a section 21 struck therefrom so that the inner edge of the section 21 is raised above the adjacent edge of the base 20. The outer end of section 21 is reduced somewhat in width leaving a short projecting portion 21a. Sides 22 are turned outwardly at right angles from a portion of the base 20 and the section 21, being spaced apart so as to pass between but lie against opposite sides 4 of the latch housing. These sides 22 extend only a portion of the length of `this member,

the member for the remainder' of its length being formed with outwardly wings 23 which, when the mem er is put in the latch housing, bear against the inner sides of the parts 5 of the housing. At the end opposite where the section 21is located, an end .piece 24 is turned at right angles through which a circular openlngl 25 is made, the saine being adapted to align'with the opening 8 made in the end 6 of the latch ousing, This member when placed within the latch housing has the endprojection 21I received in the rectangular opening 9, and the end 24 parallels the end 6 of the latch housing. y

The latch bolt includes a body 26 rectan- 'gular in cross section which, at one end,

Indicated at 27, is out at an angle as shown. A cylindrical rod 28 integrally cast with the latch bolt extends from tie end 27, being adapted to pass through the circular open-- extendlng vinclined as indicated at 39.

ings 25 and 8 before described, while the body of the\bolt passes through the lrec` tangular ope-ning 9 ing. An opening 29 is made through the body of the latch bolt into which finger 18 of the handle extends, as shown in Figs. 1 and 2. That portion of the bolt whichprojects outwardly from the housing when the bolt is in itsouter position is indicated at 30 and is somewhat reducedy in thickness by cutting away a portion thereof at its inner side, a shoulder 31 being thus formed. Onr its inner side and Aoutwardly from said shoulder a recess 32 is formed in the projecting end 30 of the latch bolt, while at its outer side the bolt is cut at an inclille, as shown at 33..the purpose of which will `later appear. The bolt is normally moved to.

outer position by a coiled spring 34 located around the rod 28, being disposed. between the part 24 and the inclined end 27 o f 'the body of the bolt (see Fig, 1).

It is evident, that with this construction the tendency of the spring is to normally press the inner side of the bolt tightly against the raised section 21 of the sheet me-tal -member previously described, and when the latch handle is operated so as to retract the bolt as soon as shoulder 31-passes back of the inner edge of the part 2], said vshoulder drops back of said inner edge of the part 21 and the bolt is securely held againstoutward movement. y-This is what occurs when the door is to be opened and the latch lever is turned outwardly to the positionshown in Fig. 2.

The keeper 35 secured to the dooi` jamb 2 is then turned inwardly toward the edge of the door, making the in-tnrned section 36 which, at its inner side, is inclined as ndicated at 37 to cooperate with the inclined outer side 33 vat the end of the latchk bolt, a wedging action being set up when the bolt, under the pressure of the spring 34, moves outwardly.. This wedging action serves to force the door to tightly closed position. The section 36 at its end is turned outwardly, terminating in an outwardly extending horn 38, the inner side of which is If, accidentally, the latch bolt should become disengaged from the retaining part 21 and be projected to its outer position, theclosing of the doorv bringing the projectingl end of the bolt against said inclined side 39, causes the bolt to move inwardly until it passes by the corner formed'byithe junction of the sides 37 and 39 on the'keeper, whereupon the bolt is free to move outwardly and engage against said side 37 as isevident. not the regular action of the latch bolt but shows that no damage will occur if such acicdental or inadvertent disengagementof the bolt shouldoccur. v

in the end 7 of the hous-y This isl The keeper has. asnger 40 formed integrally therewith located a. distance fromy and inwardly of said part 36 of the keeper before described. `The finger 40 terminates in an outwardly turned end 41 located so that with the closingof the door, the end of the latchA bolt .comes against the part 41, as shown in Fig. 2. This causes, due to the momentum of the door 1, the rojecting end of the boltto be moved and s oulderA 31 to disengage from the section 21 holding .y

the bolt inl'retracted position, freeingthe bolt for outward movement. The recess 32 in the bolt' receives thevend of the part 41 and is necessary as otherwise thebolt couldl not move to engage with the keeper. `This clearly appears in Fig. 1.

The construction Aof latch described isv -latch bolt The bolt carrying member,

when the door is closed strains on t e door- Ahinges o on the screw fastenings, which eliminated. This is a opening andv `-two Aslots shown in 4, is held against disengagement Vfrom t e housing as the rod 28 passes therethrough and also through the end of the housing and the bolt cannot be moved outwardly so as to disengage the parts until handle 16 has been removed. By reason of the bolt being held in retracted osition attach the housing to the door, are wholly very desirable feature in connection with refrigerators. `The construction of latch is very practical and effective as has, been proved in tests. The invention is defined in the appended claims and is to be considered as comprehensive of yall forms of structure coming within their scope. I

We claim: 1.` In a latch, a housing having its outer side at one end provided with a rectangular aralleling and located one at each side of t e opening, a member having a base` with a rectangular opening therethrough, and two outwardly extending e'ars located within the housing, said ears passing throughv said slots `and said opening aligning with the opening in the housing, a trough-like vmember disposedv within :the housing having a bottom and sides extending at right an les therefrom, said sides lying within the si es of the housing and at their edges bearing against the base of the first mentioned member, a latch bolt slidably mounted between the housing and the trou h-like member, spring means normally tending to move the bolt in one di rection, and a lever ipivotally mountedbetween the ears of thefirst mentioned mem-4 ber and haring a linger extending downwardly through said openings in the hous- 'ing and the .first member, said bolt also being provided with an opening into which the free end of said linger extends, substantially as described.

\ 2.'A latch comprising a housing havino a ltop and inwardly etxending parallel sides, sa1d top adjacent one end having a rectangular opening cut therethrough and two slots, one at each side of and paralleling the opening, a member comprising a base having a rectangular opening therethrou 'h and two outwardly extending ears locate within the housing, said ears extending through said slots andthe openings in sald base and; top

of the housing aligning with. each other, a

trough-like member located .Within the housing comprising a. bottom, two outwardly projecting spaced apart sidesl and anoutwardly extending end, said sides lying. against and between the sides of the housing and at their upper edges bear against the base of the first mentioned member, a latch bolt slidablyl mounted within said trough-like member, said bolt including a rod at one end passing through o enings made in theend of the housin an in the out-turned end ofpthe trough-bke member,

and ksaid bolt between its ends having an opening therethrough, a coiled spring located around said rod between the body of the bolt and out-turned end of the trough-y like member, and a manually operablelever pivotally ymounted on said ears and having a `finger extending through the openings in the top of the housing and the base of the first mentioned member and into the opening in said latch bolt, substantially as described.

3. A latch comprising a housing having an elongated top and inwardly extendin parallel sides, a trough-like member locate within the housing including a bottom and `outwardly extending sides, said bottomadjacent one end having a section pressed outwardly in a different plane than the plane of the remainder of the bottom, the sides of saidmember passing between the sides of the housing, a latch bolt slidably mounted in said trough-like member and projecting at one end through an opening in the end of 'the housing, spring means normally tending to move the bolt outwardly at said projecting end, said bolt at its inner s1de'` being formed with .a shoulder adapted to enga-ge back of the edge of said outwardly pressed section of the bottom of the trough-like member when the bolt is .moved to retracted posit-ion, and manually operable means for moving the bolt to retracted position.

4. In a latch, the combination of a hou'sing, a bolt reciprcatingly-mounted on said housing and having a catch on its inner side engageable when the bolt is retracted, a strike having apart with which said bolt en# spring for projecting said bolt, a retractng gages on the closing of the door to disen- 10 lever pivotally mounted on said housing and gage Ithe bolt catch. having an arm projecting into said housing In testimony whereof we affix oui` signanto sliding engagement with said bolt, the tures.

bolt and arm having coacting cam surfaces acting to swing the bolt laterally to catch ALEXANDER F. WINTERS. engaging position when retracted, and a BASIL R. CRAMPTON.

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