close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2124751

код 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.
û 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.
Документ
Категория
Без категории
Просмотров
0
Размер файла
572 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа