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Патент USA US2128014

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Aug. 23, 1938.
2,128,014
e. A. PLATIN DOOR LOCK
Filed Dec. 5, ‘1934
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Aug; 23, 1938.
2,128,014
G. A. PLATIN
DOOR LOCK
Filed Dec. 5, 1934
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$2914
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Aug. 23,
I
G_ A_ PLAT|N
DOOR LOCK
2,128,014
Filed Dec. 5, 1934
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,6. A. PLATIN‘
2,128,014
DOOR LOCK
Filed Dec. 5, 1934
-4 Sheets-Sheet 4
2,128,014
Patented Aug‘. 23, 1938
UNETED STATES PATENT OFFICE
2,128,014
DOOR LOCK
Giista Adolf Platin, Kalmar, Sweden
Application December 5, 1934, Serial No. ‘756,173
In Sweden December 7, 1933
7 Claims.
(Cl. 292-66)
The present invention relates to a door lock
is dependent on the cooperation of the bolt with
and has for its object to provide for separate
an abutment or the like provided in the one path‘
actuation of a member, according as the door is
closed or opened from the one or the other side,
such member consisting either of a pawl for the
lock or of a contact device, by means of which
the current for an electric lamp located on the
one or the other side of the door is switched on
and oil.
10
Thus one object of the invention is to devise
the lock in such manner that the door can al
ways he opened and closed from the inside of
the room to which it leads, while the door can
of movement of the bolt, such abutment or the
be opened from the outside only upon having
last been closed from this side. On the other
hand, should the door have been closed the last
time from the inside, a person being thus within
the room, the door shall not permit of being
opened from the outside.
2O
A further object of the invention is to pro
vide for automatic switching on and off of the
electric light in that room to which the door
leads, when the door is being opened and closed,
so that the light is switched on upon a person
entering the room and remains switched on while
that person is within the room, and is put out
when the person leaves the room.
The lock according to the invention is partic
ularly suitable for telephone stalls, toilet rooms,
30 conversation rooms, and in all such cases where
it is desirable that the light be automatically
switched on in the room upon entering the same
and is likewise automatically switched off upon.
leaving the room, while access to the room from
3
the outside shall be impossible as long as the
room is occupied.
According to the invention, in a door lock
having a bolt of a corresponding locking mem
ber to close the door and provided with two han
4 O dles, one on each side of the lock for the actu
ation of the bolt to open and close the door, the
one handle is arranged to impart a movement to
the bolt with respect to the lock and the other
handle is arranged to impart another movement
”
to the bolt.
Moreover, there is a member to
bring about the desired operation, which member
is adapted to be subjected to actuation by the
bolt generally, or to actuation by the bolt in a
certain manner at the one movement thereof
50 from a position with the door open to its po
sition of rest with the door closed, while said
member is not to be subjected to actuation by
the bolt or to an actuation by the bolt in some
other way at the corresponding second movement
55, of the bolt. The actuation of the member here
like being secured on a door post, a second door
and so forth.
The two di?erent movements of the bolt at the
manipulation of the handles may be of di?‘lerent
kinds. In a preferred embodiment of the lock,
both movements of the bolt take place in the
same plane parallel to the longitudinal direction 0
of the bolt, the one movement being preferably
a rectilinear parallel movement and the other a
swinging movement. Also, both movements may
be swinging movements and rotary movements
in various combinations, or may be movements 15
of a similar character performed in opposite di
rections. Furthermore, the two movements may
coincide in part.
As the member to be actuated in different
0
ways by the two handles, or to be actuated gen
erally by the one handle while not being actu
ated at all by the other handle, has for its ob
ject to lock the door against unauthorized open
ing of the same from the outside, said member
consists of a locking member for either one of
the movements of the bolt from its position of,
rest, with the door closed, to a position with the
door open. Actuation of the member, when the
door is closed from the outside, here consists in
making this locking member inoperative, so that 30
the door can thus be reopened from the outside.
On the other hand, when the door is closed from
the inside, the locking member will not be actu
ated, but remains operative for the locking of
that movement of the bolt which can be effected 5
by'means of the outer handle.
If the member to be actuated in different ways
by the two handles consists of a switch connected
in the circuit of an electric lamp in the room
to which the door leads, the bolt or other lock
ing member of the lock is adapted to cooperate
with and to move relatively to the switch in
0
such a manner that the light is switched on or
oif when'the lock is opened from the one side,
then remains switched on or oiT respectively both
when the lock is closed and then opened from
the other side, and is ?nally switched off and
on respectively when the lock is closed from the
?rst-mentioned side.
Preferably, the lock is at the same time pro
vided both with looking members to prevent un
authorized entrance into the room, and with a
switch for the breaking and closing of the cur
rent.
A few embodiments of the invention will now 55
2
2,128,014
be described more closely with reference to the
accompanying drawings. Fig. 1 shows a ?rst
embodiment of the lock according to the inven
tion in elevation and partly in vertical section.
Fig. 2 shows the same viewed from above and
partly in horizontal section. Figs. 3 and 4 show
the same as Fig. 1, with the bolt of the lock in
another position. Figs. 5 and 6 are vertical
sections of the lock on line 5--6 in Fig. 1, the
lock having here been locked from the outer
and the inner side respectively. Fig. 7 shows a
vertical section of an insertion lock adapted to
be arranged within a door. Fig. 8 shows the
same, with the bolt of the lock in another posi
tion. Fig. 9 shows a vertical section of the
look at right angles to Fig. 8. Figs. 10 and 11
show the same as Fig. '7, with the parts in an
other position. Fig. 12 shows a vertical section
on line I2-I2 in Fig. 11, with some of the parts
20 omitted. Figs. 13, 14 and 15 are vertical sec
tions of a third embodiment of the lock. Figs.
16, 17 and 18 are sections of a modi?ed embodi
ment of the switch arranged in the door post,
in three planes at right angles to each other.
Figs. 19~24 show a further embodiment of the
lock according to the invention, Fig. 19 repre
senting the same in vertical section, and Fig. 20
the same in elevation. Figs. 21 is a horizontal
section on line 2 I--2I in Fig. 19 and Fig. 22 shows
30 the same with the parts in another position.
Fig. 23 is a view from below, looking from line
23--23 in Fig. 19. Fig. 24 is a section on line
24-24 in Fig. 20. Fig. 25 is a horizontal section
of an ordinary insertion lock inserted into a door
and having a contact device made in accordance
with the invention and arranged on the inside
of the door and the door post. Figs. 26 and 27
show cross sections of the lock spindle. Figs. 28
and 29 are sections through the switch cooper
40 ating with this lock.
In the embodiment according to Figs. 1-6, the
inner and outer handles of the lock I and Ia re
spectively are independent of each other insofar
as the lever 2 connected to the inner handle I
(Fig. 4) engages an upwardly bent edge 39 on the
bolt 23 and displaces the same backwards in
known manner, a pin 36 secured in the lock hous
ing A and projecting into a slit 3'! in the bolt 28
then serving as a guide, while the lever 3 con
nected to the outer handle Ia only swings the
bolt upwardly (Fig. 3) about the pin 36. A
spring 4 inserted between the bolt and the lock
housing keeps the bolt in the initial position
when the handles are not actuated.
Inserted into the door case on a level with
the lock is an electric switch enclosed within a
casing 5. The switch comprises a pivoted con
tact ?ap 32 actuated by the spring 38, a ?xed
contact 33 and a resilient ?ap 6, which is piv
60 oted about 34 and provided with an arm 35 be
tween which and the lock housing is inserted a
spring 8. The arm 35 has a pin 90 which on the
movement of the flap 6 cooperates with the con
tact ?ap 32. When the ?ap 6 takes the vertical
position according to Fig. 6, the circuit is closed,
whereas it is broken when the flap 6 takes the
position according to Fig. 5. The switch casing
has a catch 1 adapted to engage the lock bolt
28 when the door is closed. When the door is
70 closed from the outside, the bolt 28 is engaged
by said catch, the contact flap 6 being then
displaced by the lock bolt (Fig. 5) and the cir
cuit being broken. If the door be opened by the
outer handle, the arm 3 thereof is caused to lift
75 the bolt 23 so much as to cause the same to be
disengaged from the catch ‘I, so that the door
can be opened, the flap 8 actuated by the spring
8 then swinging forwardly and taking its verti
cal position, so that the circuit is closed. When
the door is then closed by the inner handle, the Si
latter by its lever 2 moves the bolt 28 backwards,
so that the bolt is brought past the ?ap 6 and
then projects behind the ?ap and into the catch
‘I (Fig. 6). The ?ap 6 then remains unactuated,
the circuit being still closed.
Now, the door 10
cannot be opened by the outer handle, which by
means of its arm 3 only lifts the bolt 28, so that
it cannot move past the flap 6. In this manner,
the door is locked from within. The lever 2 of
the inner handle I only can pull the bolt 28 15
back in such a way as to cause the same to move
past the flap 6 for the opening of the door.
When the door is then closed by the outer han
dle, the arm 3 thereof lifts the bolt which is
brought into engagement with the catch "I while 20
at the same time moving back the contact flap
6, the arm 35 of which then breaks the circuit.
In the insertion lock shown in Figs. 7-12, the
contact flap I9 moves in the same plane as the
lock bolt I2. Here, the lock handles 9 and IB 25
are concentrically mounted on each other in such
manner that the outer handle 9 is movable on
the spindle II] of the inner handle I6.
Secured
on the spindle is a pin or the like II which at
the turning of the shaft is freely movable in a 80
slot in the handle 9. The handle 9 consequently
does not then follow in the movement. The
lock bolt I2 is displaceably attached to a disk
I3 in that two pins 40, 4| secured on the disk
project into a slit 42 in the bolt I2. A helical 85
spring 43 inserted between the disk I3 and the
bolt I2 forces the bolt outwardly. The disk I3
is rotatably mounted on the spindle of the han
dle. When the outer handle 9 is turned, a lever
I4 secured thereto moves the bolt I2 inwardly, 40
a pawl I5 then preventing the disk I3 from turn
ing. When the inner handle I6 is turned, a
lever I‘I secured thereto releases the pawl I5,
the disk I3 being then turned by the said lever
II, the latter engaging a pin 44 secured in the
disk I3, so that the lock bolt I2 is swung upward~
ly and, together with the disk I3, displaced rear
wardly to such an extent that the bolt is retract~
ed entirely into the lock housing (Fig. 8). When
the inner handle I6 is released, it will be returned 50
by the helical spring 45 into its initial position,
the lever I‘! then striking against the pin 46 se
cured in the disk I3 and the latter being also
returned into its initial position. In principle,
the switch in this embodiment is of the same
construction as in the previous embodiment, with
the difference only that, when the door is closed
with the bolt I2 in the projecting position, the
contact flap I9 moves under the in?uence of the
bolt I2 in the same plane as the latter (Fig. 7), 60
and, when the door is closed with the bolt swung
up, the same takes a position over the ?ap I9.
The bolt I2 is provided with a transverse recess
I8, so that the contact flap I9 is not brought into
contact with the bolt, when the latter is lowered
over the ?ap, but remains unactuated. (Fig. 12).
The door is now locked so that the same cannot
be opened from the outside, but can be opened
by the inner handle I6 only and the lever I7
thereof, which then lifts the bolt I2 over the
flap I9.
In the insertion lock shown in Figs. 13, 14 and
15, the two handles are arranged above one an
other.
Thrust onto their spindles I40 and MI
are sleeves I42 and I43, which are mounted in "
2,128,014
bearings I44 and I45 provided in the lock. Se
cured to the sleeve I42 is a short arm I46 which
like a fork embraces the lock bolt I41 and is piv
otally secured thereto by means of a pin I48.
5 The other sleeve I43 likewise has an arm I49
which by means of the pin 56 is, pivotally con
nected to a link 56, the other forked end of which
embraces the bolt I41 while being pivotally se
cured thereto by means of a pin SI. 52 and 53
are stops for the arms I46 and I49 respectively.
These stops limit the movements of the bolt and
thereby the upward swing of the handles when
the person using the door removes his hand from
the handles (see Fig. 13). When the lower han
,; dle is depressed, the bolt turns about the pin
I48, until it strikes against the upper limitof
the opening 54 in the end plate 55 of the lock
and takes the position shown by chain-dotted
lines in Fig. 13.
When the upper handle is de
pressed, the bolt is moved straight backwardly,
the link 50 then swinging about the pin 56 which
is now stationary. This rearward movement of
the bolt is limited by the link 58 being caused to
bear against the stop 52. Fig. 14 shows the ex
treme position reached. In the embodiment of
the look now described, the lock may also be
opened from the locked side by means of a key
5? cooperating with a pin 58 of square cross sec
tion on the spindle I40 of the upper handle.
Figs. 16, 17 and 18 show a further embodiment
of the switch arranged in the door post. This
embodiment di?ers from the others substantially
in that the ?ap 28 is here pivoted about a verti
cal axis 29. Secured to the flap 28 is an arm 93,
which carries a resilient piece 94 adapted elec
3
which is pivotally mounted on a pin ‘I8 and bears
against a set screw 80. At the adjustment of the
screw 86 shown in Fig. 22 the lock operates in
the same manner as in the embodiments here
inbefore described. When the door is opened
from the outside by a latch bolt having the two
types of movements previously described, the flap
65 thus returns from its displaced position into
the position of rest shown in Fig. 20, and then
closes the circuit. Upon subsequent closing of 10
the door from the inside the door is locked so
as not to permit of being opened from the out
side. By screwing out the set screw 86 it is pos
sible, however, to alter the lock so that the proc
ess will be somewhat different.
If the set screw
is screwed out into the position shown in Fig. 21,
the spring ‘I6 will move the ?ap 65 into the po
sition shown in Figs. 21 and 24, inasmuch as
said spring is stronger than the spring 61. In this
position of the ?ap '65, the projection ‘I5 presses
against the flap ‘I2 and keeps the electric cir
cuit broken. When the lock is opened from the
outside, the displaced ?ap 65 will thus return
only to the position shown in Fig. 21, the circuit
thus being still broken. Only when the lock is 25
closed from Within will the bolt 9| , which to this
end is bevelled o? as shown in Fig. 24, engage
the flap 65 to move the same out into the posi
tion shown in Figs. 20 and 23, the circuit being
thus closed and the look at the same time locked
against opening from the outside.
In the embodiment according to Figs. 25-29,
the door lock is an ordinary insertion lock of
known construction. The outer handle 20 moves
the bolt to and fro in ordinary manner. Movably 35
35
trically to connect the contacts 95 and 96. Fig. - mounted on the spindle 2| of this handle, in the
16 shows with full lines the position of the ?ap manner previously described and illustrated in
Fig. 9, is the inner handle 22, that is to say, the
28 and the arm 93 in which the circuit is closed.
Here, the flap 28 is kept pressed onto the casing spindle 2I is provided with a pin 25 movable in
a slot in the sleeve-shaped portion of the inner 40
31] by a spring 3|. Fig. 16 represents by chain
40
dotted lines the position of the flap 28 and the handle. Secured on the inner handle 22 inside
arm 93 in which the flap 28 has been swung back the door is an arm 23 which directly actuates
by the projecting lock bolt 33 at the closing of the contact flap 24 of the switch attached to the
door post (Fig. 29). When the outer handle 20
the door by the outer handle, and in which po
sition the circuit is broken. When the handle is adapted to actuate the lock bolt is depressed, the 45
released, the lock bolt engages the catch 32 in inner handle 22 remains immovable, inasmuch as
the pin 25 on the spindle 2I moves freely in the
the manner indicated in Figs. 5 and 6.
The switch according to Figs. 19-24 has a flap slot of the handle 22 (Figs. 25 and 26). The arm
65, which is pivoted about a vertical shaft 66, 23 therefore remains immovable in its horizon
and which by means of the spring 67 is kept tal position and can press back the contact flap
pressed against the one side of the housing 68 24, so that the current is interrupted when the 50
in the manner shown in Fig. 20. Provided in the
door is closed from the outside (Fig. 29). When
upper part of the housing 68 are two metal bars the door is closed or opened by the inner handle
69 and ‘I6, which are connected each with one of 22, the outer handle 2I is entrained in the move—'
the wires to be connected to cause the electric ment, inasmuch as the pin 25 then serves as a
55
incandescent lamp to be lit. Secured to the bar carrier. The lock bolt is moved back simultane
69 is a pin ‘II, which carries a flap ‘I2 mounted ously with the swinging of the arm 23 above and
thereon, said ?ap being kept pressed by means
(30
of a helical spring ‘I3 against a contact pin 14
secured on the other metal bar ‘ID. The parts
69, ‘III, ‘II, ‘I2 and 14 all form electrical conduc
tors, so that the circuit will be closed in the po
sition shown in Fig. 23. Secured'to the flap 65
is a projection 15 of insulating material, which
projection engages the ?ap ‘I2 and thus breaks
the circuit when the ?ap 65 is moved back by
the lock bolt. Provided in the lower part Of the
housing 68 is a helical spring 16, which is ar
ranged on the shaft 66, and the one movable end
‘II of which is bent upwardly and bears against
the ?ap 65 behind the same. In the position
shown in Fig. 22, this spring ‘I6 is inoperative,
in that the end ‘I’! of the same is prevented from
turning the ?ap 65, and is instead retained in the
position shown by the triangular member ‘I9,
past the ?ap 24. In this embodiment, too, the
door is locked from the inside, inasmuch as only
the inner handle 22 can lift the arm 23 over the 60
flap. When the outer handle 20 (Figs. 25 and 26)
is turned down, the stationary inner handle 22
is retained in its horizontal position by means of
a helical spring 26 (Fig. 27) , the one end of which
is secured to the door or the lock housing, while 65
the other end of the same grasps about a boss
2‘! on the handle 22.
Lock bolts of various kinds and a plurality of
shapes, and movable in the manner above de
scribed, may also be adapted directly to actuate
ordinary push switches, rotary switches and time
switches, and may impart impulses in different
70
Ways for the breaking or closing of the electric
circuit.
75
4
2,128,014
What I claim is:
l. A door lock comprising a lock housing and
two rotary operating devices attached thereto, a
lock bolt having a slit and a portion projecting
from said bolt; a pin secured to said housing and
extending into said slit, means ?xed to one oper~
ating device and adapted to engage the bolt from
below to swing the bolt, means ?xed to the other
handle and ads pted to engage said projecting por
tion of the bolt to displace the bolt rectilinearly,
a keeper device, and movable locking means oper
able upon projection of the bolt to keeper engage
ment following retraction thereof by one of said
handles for preventing retraction of the bolt from
keeper engagement by the other of said handles.
2. A door lock comprising a lock housing, two
spindles mounted. therein, a handle attached to
each of said spindles, a lock bolt, an arm rigidly
secured to the one spindle and pivotally secured
to said bolt, another arm rigidly secured to the
other spindle, a link, one end of said link being
pivotally secured to the last-mentioned arm and
the other end being pivotally secured to said bolt,
a keeper device, and locking means operable upon
25 projection of the bolt to keeper engagement fol
lowing retraction thereof by one of said handles
for preventing retraction of the bolt from keeper
engagement by the other of said handles.
3. A door lock comprising a keeper, a spring
30 projected lock bolt, means mounting said lock
bolt for a rectilinear movement and alternatively
a swinging movement into and out of keeper
engaging position, actuating means for displacing
path, means including a handle at the other side
of said lock for moving said bolt along an angular
path, and keeper means operable subsequent to
movement of said bolt into latching position along
one of said paths for locking said bolt against
movement from latching position along the other
of said paths, said keeper means including a
member automatically displaceable from a lock-'
ing to an unlocking position by the bolt as it
moves to latching position along said other path. 10
5. A door lock as claimed in claim 4, wherein
said keeper means includes a keeper having an
opening in one edge through which said bolt en~
ters along the said rectilinear path and an open
ing in an adjacent edge through which said bolt
may enter the keeper when moved along said
angular path; and said keeper member comprises
a plate pivotally mounted for move rent to close
the second keeper opening, and spring means
tending to retain said keeper member in closing 20
position across said second opening.
6. In a door lock, the combination with a spring
projected lock bolt and a keeper device, of bolt
actuating means operable to displace said lock
bolt along two diiferent paths to move the same 25
out of engagement with said keeper device, said
means including handles at opposite sides of the
lock and each individually operable to actuate
said means to effect retraction of the bolt along
one path of movement, and locking means oper 30
able to prevent retraction of the bolt by the ?rst
of said handles following a spring projected move
ment of the bolt into keeper engagement after a
said bolt rectilinearly, a second actuating means
retraction by the second handle; said locking
35 for swinging said bolt, each actuating means in
cluding a manually operable member and said
members being located at opposite sides of the
lock, and bolt~actuated means operable upon pro
means including a member and means tending to
move said member into position to block retrac~
jection of the bolt to keeper engagement follow
40 ing retraction thereof by one of said actuating
means to prevent retraction of the bolt from
keeper engagement by the other of said actuating
means; said bolt-actuated means including a dis
placeable member disposed in the path of the bolt
45 as it is spring projected after retraction by said
other actuating means and outside the path of
the bolt as it is spring projected after retraction
by said one actuating means.
4. A door lock comprising a spring projected
50 lock bolt, means including a handle at one side of
the lock for moving the bolt along a rectilinear
tion of the bolt from the keeper device along the
path established by actuation of the ?rst handle,
said member being located outside the other path
of movement of the bolt and being automatically 40
moved out of motion-blocking position by the bolt
upon movement thereof into keeper engagement
following a retraction of the bolt by said ?rst han~
dle.
'7. In a door lock, the invention as claimed in
claim 6, wherein said bolt actuating means in
cludes means operable by one handle to displace
the bolt along a rectilinear path and means op
erable by the other handle to displace the bolt
along an arcuate path.__
GOSTA ADOLF PLATIN.
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