Патент USA US2124751код для вставки
July 26, 193s. ' c. H. SAXTON 2,124,751 DOOR LATCH Filed Feb. 18, 193'? 5 Sheets--Shee'fl l Z, /Z 1159.2. Ã» l 6127.3.- wim/MAM. July 26, 1938. 2,124,751 C. H. SAXTON DOOR LATCH Filed Feb. 18, ' 1957 Z5 Sheets-Sheet 2 / Jwg. Z ` Z ClaudJïJaœZa/a d] / » I l Summa/x39 July 26, 1938. 2,124,751 C. H. SAXTON Y DOOR LATCH Filed Feb. 1a. 1937 '_ „271320. 3 sheets-sheet z ll B Á Patented `Íuly 26, 1938 ' >2,124,751 ' UNITED STATES PATENT OFFICE 2,124,751 DOOR LATCH Claud E. Saxton, Elmira, N. Y. Application February 18, 1937, Serial No. 126,466 5 Claims. (Cl. 292-71) This invention relates to a latch for doors and while it is designed primarily for use in connec tion with the doors of automobiles, it is to be understood that it can also be employed in con 5 nection with other types of doors, if found con venient. ~An object of the invention Iis to provide the latch with a bolt which does not slide as crdinar~ ily but is mounted to slide and swing relative to 10 the latch housing and the keeper so that when the bolt is not fastened against swinging move ment, the door can readily be moved into or out of closed position without requiring the use of handles such as commonly employed. 15 A further object is to provide simple and eili cient means for fastening the bolt against move ment relative to its housing. . With the foregoing and other objects in view 9 “ which appear as the description proceeds, the in vention consists of certain novel details of con struction and combinations of parts hereinafter more fully described and pointed out in the` claims, it being understood that changes may be made in the construction and arrangement of 25 parts without departing from the spirit of the invention as claimed. 1 Figure l2 is a section on line I2_|2, Figure 0. Figure 13 is an enlarged transverse section through a portion of the door equipped with the modified form of lock, the operating levers of the latch and the shafts from which they are extended being shown. - , Figure 14 is a perspective view of the head of the latch bolt. Referring to the figures by characters of refer ence A designates a door of an automobile or the like, the same being of the usual construction with the exception that no handles are mounted on either the inner side or outer side thereof. Formed in the bottom wall of the window open ing at opposite sides of the glass B are sockets C each of which is suiîiciently large to receive one or more iingers of the user when it is desired to release the latch and open or close the door. Each of these sockets is located above the hous 20 ing I of the latch which is concealed withinthe door at the usual location. In the structure illustrated the latch housing comprises a metal plate bent to provide side walls 2 and an end wall or face plate 3, the latter 25 being formed with an opening 4 in which the head In the accompanying drawings the preferred` of the latch bolt is adapted to work. This end forms of the invention have been shown. In said drawings 30 ` Figure 1 is a side elevation of portions of two doors of an automobile, the same being equipped with latches which constitute the present inven tion, a portion of one of the doors being shown in section. 35 Figure 2 is a central vertical longitudinal sec tion through the housing of the latch in one door. , Figure 3 is a section on line 3_3, Figure 2. 40 Figure 4 is a section on line 4_4, Figure 2. Figure 5 is a section on line 5_5, Figure 2. Figure 6 is a view similar to Figure 2 but showing the relative positions of the parts when ' the latch is released and retracted by the opening or closing of the door. 45 Figure 'l is a section on line 1_1, Figure 6. Figure 8 is an enlarged section on line 8_8, Figure 1. Figure 9 is a horizontal section through a por tion of the latch showing the position of the bolt 50 while the door is being closed, the head of the bolt being pressed backwardly by contact with its keeper. y Figure 10 is a view similar _to Figure 2 showing a slightly modiñed form of latch. 55 ' Figure 1l is a section on line Il_I I, Figure 10. wall or face plate 3 is adapted to.lie _flush or substantially flush with that edge of the door remote from the hingesv and be supported close 30 to the keeper '5 of the latch'when the door is closed. As the housing of the latch is bent substan tially into U-shape it can extend partly around the path of the window glass B as shown for ex ample in Figures 7 and 8 so as not to interfere with the raising and lowering of the glass. Guide ears 6 are struck inwardly from one of the side walls 2 of the latch housing or casing and slidable between them is a latch bolt 1 40 formed of an elongated strip of metal bent to produce a yoke having parallel arms. This bolt is straddled by a cross strip 8 slidably mounted on a pin 9 projecting from the adjacent side 2 of the casing and interposed between the cross strip 45 8 and the head 9’ of the pin is a coiled spring I0 which constantly thrusts against the cross strip, thereby to press the bolt 1 yieldingly against the adjacent side wall 2 and maintain it between the guide ears 6. . 50 The head of the bolt is of peculiar design and has been illustrated in detail in Figure 14. This head Il has a flat side I2 which merges into a rounded'end surface I3 terminating at the outer end of the opposite fiat side I4 of the head.' This 55 2,124,751 flat side I 4 extends backwardly to a laterally ex tending enlargement I5. Recesses I3 are pro vided in the top and bottom of the latch head I8. After the bolt head Il has moved with the door to closed position, the spring I3 will promptly project the head II into the keeper as shown in Figure 5 thus fastening the door. The ' at the inner end thereof and are adapted to re ceive the free end of the arms of bolt 1, these arms being `joined to the head by a pivot I1. 'I'he door cannot now be opened by pulling on it be cause the detent I3 prevents the head from swinging out of engagement with its keeper. It parts are so proportioned and assembled that when in normal positions,.the flat side I2 of the head and the corresponding side of the bolt 1 might be stated that when it is desired to close the door from the inside, one or more fingers of 10 will rest snugly against the adjacent wall 2 of the user can be placed within the socket C at the -inner side of the door and the door thus the latch casing as shown, for example, in Figure v4, these parts being held yieldingly in these p0 sltions by the pressure of spring III against the pulled shut.~ cross strip 3 which, in turn, thrusts against the 15 bolt 1. ~ 4 A spiral spring I3 is s'ecured to one of the side walls 2 of the casing and has a free end whichv exerts a constant thrust against the inner end of ._ the bolt 1 so that said bolt is held normally in forwardly extended position with the head II projecting through opening 4 and the enlarge ment I 3 thrusting against the face plate 3 of the casing so as to constitute means for limiting ~the movement of the bolt in one direction. These l - ' To open the door from the outside the user depresses the head or push bar 30 so as to push through rod 23 against lever 23 and cause one end of' the lever to lift against the action of spring 3| and thus raise the equalizing lever 23 to the position indicated by dotted lines in Fig ure 3. This results in lifting detent I3 away from the side of enlargement I3 and if the user 20 will then pull on the door, using the socket as a handle portion, the flat side I4 of head II will be deflected by the fixed keeper 5 so that the joint between head II and bolt 1 will “break”, 25 positions of the parts are clearly shown in Figure as shown in Figure 7, thereby allowing the head 5 wherein the head of the bolt is shown in en II to slip past the keeper. During this “break gagement with its keeper, as when the door ' ing” action the bolt 1 will of course swing out is closed. _ ' I of normal position against the action of springsFor the purpose of preventing swinging move I0 and I3 but as soon as the head II has passed ment of the bolt 1 and the head I I, there is pro its keeper 5, the springs will return the bolt and vided a detent I9 in the form of a short lever its head to position flat against the adjacent side pivotally mounted at 20 on the inner side of the 2 of casing I, the parts thus being restored to face plate 3 and normally supported by a stud their normal positions. 2I so that its end will bear against the adjacent To open the door from the inside the same side of the stop or enlargement I5. A lifting action takes place with the exception that the rod 22 connects detent I9 to an equalizing lever user depresses the head or button 30 at the inner 23 pivotally mounted on the face plate 3 and 'side of the door so that motion will be trans provided at its ends with slots 24. -Extending mitted through the rod 23 thereof to the lever into the respective slots are the rounded ends of 26 whichÍ will be actuated to raise the equalizing 40 operating levers 25 and 26 which are pivotally lever 23 and the detent I 9. The user then thrusts supported on the -respective side walls 2 and against the door and causes it to open at which 40 guided Within straps 21 or the like. 'I'hose ends time the bolt and its head will act as before of the levers remote from slots 2l are engaged ' described. by push rods 23 mounted in guides 29 and ex Should the occupant of the car leave the stop tending into the respective sockets C where they 32 in holding position, as indicated by> broken are equipped with heads or push bars 30 adapted lines in Figure 3, it would then be impossible 45 to receive thrust from one or more fingers of the for the door >to be opened from the outside be user. If desired these heads can be made of cause equalizing lever 23 could not be raised by such size as to constitute closures for the sockets depressing the head or push bar 3II. so as to keep out foreign substances. While it is preferred to use a depressible head A coiled spring 3| can be connected to the or push bar for actuating the lock it is to be lever 23 for exerting a constant downward pull understood that a lever could be used for this thereon with the result that the detent I9 is , purpose if so desired. 'I‘his modified construc maintained normally in the position shown in tion has been shown in Figures 10 to i3 inclusive. Figure 3, thereby preventing lateral swinging motion of bolt ever, interfere motion of the Actuation of 1 and head II. It does not, how with the back and forth sliding bolt. the equalizing lever 23 by the de pression of either of the rods 23 can be pre vented by a pivoted stop 32 located above the lever and adapted to hang downwardly into posi tion thereagainst. By means of a rod 33 ex tending inwardly from the door and attached at one end to this stop, the stop can be swung into or out of restraining position. In Figure 3 the stophas been shown by full lines in released posi tion and by dotted lines in restraining position. It will be noted that a door equipped with this 70 latch is not to be provided with handles. To close the door from the outside it is merely neces sary to thrust against it. This will cause the rounded surface I3 and head II to come against keeper 5 and the keeper will flick the head back 75 wardly, thrusting through boit ‘I against spring It includes a lifting rod 34 extending upwardly from detent I9 and pivotally attached to a cross head 35 the endl of which normally rests on supporting lugs 36. A spring 31 is attached to the lifting rod and to the wall of the casing so as to hold said rod normally pulled downwardly so that the cross head 3l is normally resting on lugs 36 and detent I3 is normally positioned at the side of head extension I5. Parallel shafts 33 take the place of the operat ingylevers 25 and 23, these operating elements or shafts 33 being provided with lifting fingers 39 55 which extend toward each other and under a pin 40 carried by the rod 3l. Thus when either finger 33 is swung upwardly it will push against the pin 40 and cause the rod 3l to move upwardly against 70 the action of spring 31, thereby lifting the detent away from the head oi' the bolt. The respective operating elements or shafts 33 are adapted to be actuated by arms or levers 4I extending upwardly therefrom through slots in 75 2,124,751 the bottom wall of the window opening. By swinging either of these arms in one direction its shaft will be rotated so as to cause the ñnger 39 to thrust upwardly against pin s0 and release the bolt head for lateral swinging movement. This modified lock will be provided with a stop 32 cor responding with the one heretofore described whereby the latch can be held against operation. What is claimed is: l, A latching mechanism for a closure compris 10 ing a case plate provided with a face plate, a bolt carried thereby including a tail-piece and a head pivotally connected thereto, spring means for urging the bolt to latching position, said head being adapted to swing in response to opening> movement of the closure and having sliding coop eration with said case plate and face plate during such swinging movement, a stop portion on said head engaging said face plate for limiting the movement of the bolt to latching position and slidingly engaging said face plate during swing ing movement of the head, means for urging said bolt toward the face plate for rectilinear sliding movement to yieldably restrain swinging move 25 ment of the head, and movable abutment means engaging said stop portion for maintaining the tail-piece and the bolt in alignment for rectilinear movement only whereby the closure is maintained in latched condition by preventing swinging 30 movement of the head. 2 A latching mechanism for a closure compris ing a case plate provided with a face plate, a bolt carried thereby including a tail-piece and a head pivotally connected thereto, spring means for 35 urging the bolt to latching position, said head 3 for releasing said abutment means including means disposed on each side of the door and con nections enabling actuation of one control inde pendent of the other control. 3. A latching mechanism for a closure compris ing a case plate provided with a face plate. a bolt carried thereby including a tail-piece and a head pivotally connected thereto and having sliding cooperation with said case plate and face plate during swinging movement, said head being 10 adapted to swing in response to opening move ment of the closure, spring means for urging the bolt to latching position, means for urging said bolt toward the case plate for rectilinear sliding movement to yieldably restrain swinging move 15 ment of the head, and movable abutment means for maintaining the tail-piece and bolt head in alignment for rectilinear movement only whereby the closure is maintained in latching condition by 20 preventing swinging movement of the head 4. A latching mechanism for a closure compris ing a case plate provided with a face plate a bolt carried thereby including a tail-piece and a head pivotally connected thereto, said head being adapted to swing in response to opening movi 25 ment of the closure, a curved surface on said hi ad adapted to slidahly contact said case plate during swinging movement thereof . a stop portion on .said head slidingly engaging said face plaie during swinging movement and in cooperation with said 30 curved surface, spring means for urging the boli to latching position. means for urging said boli toward the case plate for rectilinear sliding fiiove ment to yieldably restrain swinging movement or the head, and movable abutment means for main 35 taining the tail-piece and bolt head in alignment for rectilinear movement only whereby the cio movement of the closure and having sliding coop eration with said case plate and face plate during sure is maintained in latched condition by pre such swinging movement, a stop portion on said ` venting swinging movement of the head 5. A latching mechanism including a casing head engaging said face plate for limiting the having a face plate, a sliding and swinging bolt in movement oi the bolt to latching position and slidingly engaging said face plate during swinging said casing, means adapted to urge said bolt to a movement of the head, means for urging said bolt position for sliding movement, means carried by toward the face plate for rectilinear sliding the bolt engaging the face plate to limit outward being adapted to swing in response to opening movement to yieldably restrain swinging move ment of the head, movable abutment means en gaging said stop portion for maintaining the tail piece and the bolt in alignment for rectilinear movement only whereby the closure is maintained in latched condition by preventing swinging movement of the head, and manual control means n 40 sliding movement thereof and coactlng with the 45 face plate during swinging movement of the bolt, and releasable means engaging the last named means to restrain swinging movement of the bult to unlatching position. 50 CLAUD H. SAXTON.