[0001] The invention relates to a lock comprising a lock case, a night bolt and a day bolt
co-operating with one another, which night bolt is swingably mounted inside the lock
case and one end of which in the closing position projects through an opening in the
lock case outside said case, and, in the opening position, is swung inside the lock
case, a cylinder lock mechanism which is mounted on the lock case and has a rotating
operating member which co-operates with a transmission to actuate both the night bolt
and the day bolt so that the unlocking of the door can be obtained through the cylinder
lock mechanism and a key.
[0002] Locks with swingable night bolts are already used because they offer some advantages
with respect to the known locks with a rectilinear slidable night bolt.
[0003] In the first place with a swingable bolt a better closing can be obtained than with
a slidable bolt.
[0004] In the second place a swingable bolt can have a hook-shaped end, which allows to
use the lock for sliding doors whereby the bolt must hook behind a wall for the closing.
[0005] It has already been proposed to mount besides a lock with exclusively a swingable
night bolt, also a further lock with exclusively a day bolt, which is then operated
by a door handle. This day bolt can however, not be operated by the cylinder lock
mechanism and thus a key, so that to open the completely closed door wherein the two
locks are mounted, one must rotate the key of the cylinder lock mechanism and also
must rotate the door handle. An example of such a bolt is shown by DE-A-2.152.199.
[0006] According to the above-mentioned patent application the swingable night bolt and
the to-and-fro motion of the slidable day bolt are controlled by a sliding plate of
which one end is pivotally connected with the lever actuating the sliding day bolt
and the other end is equippec with a plate spring co-operating with parts which themselves
are actuated by a key in such a manner that locking and unlocking of the night and
day bolt can be achieved by said key.
[0007] This construction, especially the pivotally connection between the above sliding
plate and the sliding day bolt actuating the lever on the one hand and the spring
portion of the same sliding plate on the other hand, are submitted to considerable
stress. These heavy duties cause an early wearing of the mechanism, some parts of
which, especially the above referred to sliding plate, are not burglar proof. The
invention has for an object to obviate these drawbacks and to propose a locking mechanism
of which the co-operating elements controlling both the swinging night bolt and the
day bolt consist of parts which, notwithstanding they can be turned without effort,
are all of a heavier construction and resist any effort to force the mechanism.
[0008] For this purpose the night bolt is provided on that portion thereof remaining inside
the lock case, on a side wall running in parallel relationship to the rotation axis,
with at least one protrusion, while the lock has a slider (28) which is slidable to-and-from
relative to the bolt inside the lock case, which slider (28) comprises a blocking
finger (29) which finger as it engages the night bolt, lies in the night bolt closed
position on that side of the protrusion to which the night bolt has to swing for the
opening, said lock further comprising a spring element (32) which pushes the slider
as far as possible towards the night bolt, and a transmission between the operating
member (12, 13) of the cylinder lock mechanism (9) and the slider (28) for moving
temporarily the slider away from the night bolt by the rotating of the operating member
in the direction for the night bolt opening, in such a way that the slider blocking
finger will not retain the bolt any more.
[0009] In a preferred embodiment, the operating member of the cylinder lock mechanism (9)
comprises a ring (12) and a projection (13) standing thereon, and the transmission
between said operating member and the slider (28) comprises a lever (33) which is
rotatably mounted inside the lock case, co-operates with the one end thereof with
the slider (28) and co-operates with the other end thereof with the operating member
projection (13). In this form of embodiment the slider (28) lies between two ribs
(30) and (31) on the lock case wall, which ribs form guides for the slider (28) and
the night bolt protrusion (36) forms the wall of a notch. Advantageously, the night
bolt comprises a second protrusion which in the open position of the night bolt, lies
against the slider finger (29), when said finger connected to the night bolt, and
on such a side of said finger that the swinging of the night bolt to the closed position
is prevented by said finger, while the transmission between the slider and the operating
member of the cylinder lock mechanism is so arranged that even by the swinging of
the operating member (12, 13) for bringing the night bolt to the closed position,
said transmission moves the slider away from the bolt.
[0010] Other details and advantages of the invention will stand out from the following description
of a lock according to the invention; this description is only given as example and
does not limit the invention; the reference numerals pertain to the accompanying drawings,
in which:
Figure 1 is a top view from a lock according to the invention as mounted on a door,
whereby both bolts are shown in closed position.
Figure 2 is a front view of the lock shown in figure 1, but without the door.
Figure 3 is a side view from the lock shown in figures 1 and 2, but with the key and
handle plates removed in addition to the door.
Figure 4 is a side view of a lock similar to figure 3 but with a side wall of the
lock case being further removed and whereby another embodiment of the night bolt is
shown with parts broken away.
Figure 5 is a side view of part of the lock shown in figure 4, whereby the night bolt
is shown in open position.
Figure 6 is a cross-section along line VI-VI in figure 5 but without the cylinder
lock mechanism.
[0011] In the various figures, the same reference numerals pertain to similar elements.
[0012] The lock shown in the figures comprises a lock case 1 which forms a closed box and
is comprised of two parallel rectangular side walls 2 and 3, an upstanding rim 4 which
stands on two short sides and one long side of side wall 2 and against which bears
side wall 3, and a fastening plate 5 which connects to the fourth side of side wall
2 and also connects to rim 4. Said fastening plate 5 projects sidewise outside side
walls 2 and 3 and also projects with both ends outside the remainder of lock case
1. With said projecting ends said fastening plate 5 is made fast as shown in figure
1 to an upstanding section 6 from a door. The fastening plate 5 lies on the outer
side of section 6 while the remainder of the lock case is arranged inside an opening
of the section and for the major part thereof within the section proper. While the
side wall 2, the rim 4 and the fastening plate 5 form a unit, the side wall 3 is comprised
of a removable plate which is secured against the rim 4 by means of screws 23 which
are screwed into projections 7 and 8 standing on side wall 2.
[0013] The lock further comprises a cylinder lock mechanism 9 which is of a structure known
per se and will only be described here as far as necessary to understand the working
of the lock. The housing 10 of the cylinder lock 9 is secured by means of a screw
11 which passes through the fastening plate 5, to the lock case 1. Said housing projects
on either side through openings in the side walls 2 and 3. Inside lock case 1 that
is between side wall 2 and 3, said cylinder lock 9 comprises a rotatable operating
member which is formed by a ring 12 whereon stands a projection 13.
[0014] Said operating member 12, 13 controls through transmission means two bolts, namely
a night bolt 14 and a day bolt 15. The night bolt 14 and the day bolt 15 project in
closed position respectively through openings 16 and 17 in plate 5. In open condition,
bolts 14 and 15 still lie precisely partly inside said openings but mainly on the
outer side and in any case in such a way that they do not project outside the lock
case 1.
[0015] In closed position bolts 14 and 15 enter with the ends thereof corresponding recesses
provided in a stiffening plate 18 and in a section 19 said plate 18 is made fast to.
Said section 19 is part as it is clear from figure 1, of the fixed door frame. The
lock case 1 is so mounted in the section 6 of the door proper that the covering plate
5 lies on that side facing section 19 when the door lies in the closed condition,
as it is shown in figure 1. Those portions of cylinder lock 9 projecting outside lock
case 1 also project outside section 6 on the front and back side of the door. Said
projecting portions of cylinder lock 9 are further surrounded by a small key plate
on either side. Both key plates are pulled together by two screws 21 which lie respectively
above and below cylinder lock 9. The key plates 20 are consequently pushed against
section 6. As it appears particularly clearly from figure 2, the screws 21 go through
the one key plate 20 wherein the screw heads are sunk, while the screws are screwed
with the other end thereof in the other key plate 20 which is provided on that side
facing the lock case, with suitably- threaded holes. The top screw 21 runs cross-wise
through lock case 1, namely through openings 22 in side walls 2 and 3 thereof. The
bottom screw 21 runs precisely on the outer side of lock case 1. That key plate 20
wherein the heads of screws 21 are sunk, is arranged on the door inner side. Consequently
the key-plate fastening is not visible from the outer side and the small key plate
located on the outer side cannot be removed either. Both key plates 20 are moreover
provided with bevelled outer edges which converge away from lock case 1. The thickness
of the small key plates 20 is moreover such that when said key plates are pushed as
shown in figure 1 against section 6, the cylinder lock 9 does not or substantially
not project outside said key plates 20. Without removing key plates 20, it is thus
also impossible to grip with pliers a cylinder lock end that projects outside section
6. Due to the bevelled edges thereof, the small key plates 20 cannot either be gripped
with pliers, so that they cannot be forcefully removed either.
[0016] The night bolt 14 is swingably mounted inside lock case 1. The axis said bolt swings
about is formed by the above-mentioned projection 8 that stands on side wall 2. Said
bolt 14 is swung from the open position to the closed position or vice versa by the
operating member 12, 13 of the cylinder lock mechanism 9 through a transmission. Said
transmission comprises an arm 24 which is made fast to the side facing side wall 3,
of night bolt 14, eccentrically relative to the rotation axis 8 of bolt 14. Said fastening
is obtained by means of a small shaft 25 which stands on arm 24 and is loosely rotatably
fitted inside an opening provided in bolt 14. Said small shaft 25 runs as well as
rotation axis 8 of bolt 14 and the rotation axis of operating member 12, 13 for the
cylinder lock at right angle to side walls 2 and 3. The arm 24 extends along the inner
side of fastening plate 5 of lock case 1, which plate forms a guide during the alternating
sliding of arm 24. That end of arm 24 removed from shaft 25 is provided with an overthickness
24' which projects both towards side wall 2 and away from fastening plate 5. In that
portion of said overthickness removed from fastening plate 5 is provided a notch 26
which opens on that overthickness edge which is removed from plate 5. Actually said
latter end of arm 24 forms sidewise a two- pronged fork. Said latter end with notch
26 lies in the open position of night bolt 14, next to but partly over operating member
12, 13 of cylinder lock mechanism 9. In the figures said operating member has been
shown in the neutral position whereby thus the key can be removed from the cylinder
lock. In such a position the projection 13 is directed downwards. When said operating
member 12, 13 is then caused to swing by means of a suitable key in the closing direction,
that is counterclockwise, said projection 13 enters notch 26 and arm 24 is carried
along by further rotation. Said arm moves thereby in the direction away from small
shaft 25. It is clear that arm 24 causes thereby the night bolt 14 to swing about
the shaft 8 thereof. This swinging movement to the closed position is limited by the
wall of opening 16. In figures 1 to 4 the bolt 14 has been shown in closed position.
Said bolt lies in closed position before the operating member 12, 13 has made a complete
swinging.
[0017] When now the operating member 12, 13 is . caused to swing in the other direction,
the projection 13 enters again notch 26 which then lies next to but partly below ring
12. By further rotating, the arm 24 is returned to the original position thereof whereby
thus also the night ' bolt 14 swings back to its original position. The swinging in
said direction is limited by a stop 27 which stands on side wall 2.
[0018] Both in closed and in open position the bolt 14 is still retained by a blocking mechanism.
Said blocking mechanism comprises a slider 28 which is slidable to-and-fro along the
cross-wise direction of lock case 1 over side wall 2 and is provided with an upstanding
finger 29 running away from side wall 2. During the sliding movement thereof, said
slider 28 is guided by two ribs 30 and 31 which stand on side wall 2. A leaf spring
32 which is secured by stops 27 and 52, pushes slider 28 constantly in the direction
of night bolt 14. That portion of slider 28 on which stands finger 29 extends for
the major part along side wall 2, between same and bolt 14, up to a small distance
from fastening plate 5. The slider 28 can be pushed away from said plate 5 against
the action of leaf spring 32, by means of a lever 33. Said lever is hingedly fastened
between the ends thereof by means of a small shaft 34 on side wall 2, directly adjacent
fastening plate 5. The one leg of lever 33 extends between night bolt 14 and side
wall 2 and lies precisely opposite that end of slider 28 facing plate 5. The bolt
14 is retained notably by ribs 30 and 31 at a distance from side wall 2 in such a
way that as already noted, a portion of slider 28 and thus also a portion of lever
33 can lie movably between bolt 14 and side wall 2. The other leg of lever 33 extends
between arm 24 and side wall 2 and lies with the one end thereof right next to ring
12 from said operating member 12, 13 of cylinder lock mechanism 9. By rotating said
operating member 12, 13 as well in the closing direction as in the opening direction,
projection 13 pushes said last-mentioned leg of lever 33 away whereby said lever swings
about the shaft 34 thereof and causes slider 28 to slide against the action of spring
32. When said projection 13 does not engage any more lever 33, said lever 33 can be
swung back to the original position thereof by slider 28 which is pushed in turn under
the action of leaf spring 32 in the direction of fastening plate 5. During each revolution
of operating member 12, 13 and thus of night bolt 14, the lever 33 thus pushes slider
28 as far as possible away from fastening plate 5. After the swinging of bolt 14 and
when operating member 12, 13 lies back in the neutral position, with projection 13
directed downwards, said lever 33 does not exert a force any more on slider 28 whereby
thus said slider 28 engages that portion of bolt 14 lying inside lock case 1 and can
retain said bolt portion. For this purpose, the last-named portion of night bolt 14
is provided with a notch 35 and a protrusion 36. The protrusion 36 is so located that
when night bolt 14 lies in the open position a shown in figure 5 and slider 28 is
pushed with the finger 29 thereof against said bolt 14, the finger 29 lies right next
to protrusion 36 in the direction along which bolt 14 is swung from the open position
to the closed position. Finger 29 prevents as long as slider 28 is not pushed away
by lever 33, the swinging of night bolt 14 lying in the open position. Notch 35 in
night bolt 14 is so located that when night bolt 14 lies in the closed position as
shown in figure 4 and slider 28 is moved farthest away in the direction of said night
bolt 14, the finger 29 fits precisely into notch 35. The wall of said notch that lies
on the side along which the notch moves during the swinging to open position of bolt
14, then also forms a protrusion which is retained by finger 29. Bolt 14 in closed
position is prevented from swinging as long as slider 28 has not been moved by lever
33. In the completely closed position of bolt 14, it is impossible, even if it were
possible to reach the end of bolt 14 projecting outside lock case 1, to cause bolt
14 to swing by hitting said end.
[0019] That portion of night bolt 14 which lie in closed position outside lock case 1 can
take various shapes. Due to said bolt 14 swinging, the last-mentioned portion thereof
can form a hook as shown in figures 1 to 3. It is required for example with sliding
doors that bolt 14 by the closing hooks behind a portion of section 19 and stiffening
plate 18. In the embodiment as shown in figures 5 and 6, the bolt 14 is not of hook-shape
in such a way that it can only be used on hinged doors.
[0020] To prevent sawing through that portion of night bolt 14 which lies in closed position
outside lock case 1, at least one cylinder-like hollow 37 is provided in said bolt
14, hollow inside which lies loosely a round pin 38. In the embodiment of night bolt
14 as shown in figures 4 to 6, two such hollows 37 are cut-out in said bolt 14. Said
hollows extend in the lengthwise direction of bolt 14, that is thus in the direction
along which the bolt extends in closed position outside lock case 1. Both hollows
37 open on that end of bolt 14 which even in closed position still lies inside lock
case 1 and run up to some distance from the other end. Said hollows thus lie partly
in that portion of bolt 14 extending in closed position outside lock case 1 and certainly
right adjacent to fastening plate 5. Inside each hollow 37 lies a round pin 38 which
has substantially the same length as the hollow and thus lie in every case in that
hollow portion which lies outside lock case 1 in closed position of bolt 14. Pins
38 are made from steel which has been surface- nitrated. When sawing through that
portion of bolt 14 projecting outside lock case 1 in closed position, the saw as it
reaches the pins 38, will roll over same. The pins 38 will be substantially impossible
to saw through.
[0021] The day bolt 15 is comprised of a sidewise- bevelled head 39, an enlarged end 40
and a connecting rod 41 which connects end 40 to head 39. A portion 40' fits precisely
between a guide formed by two walls 42 standing on side wall 2 of lock case 1 and
connecting to the rim thereof. A spiral spring 43 which bears on ridge 4 and lies
between both walls 42, pushes end 40 in the direction of fastening plate 5 and thus
pushes day bolt 15 outwards. In the closed position thereof head 39 lies partly in
the opening 17 in plate 5 and partly outside lock case 1. Portion 40' from end 40
still lies precisely between both walls 42. In open position the head 39 lies completely
inside lock case 1 and spring 43 is completely compressed. As during the complete
sliding of bolt 15, the square portion 40' of end 40 lies between both walls 42 and
the head 39 constantly lies with a portion thereof inside opening 17, the bolt 15
cannot be swung. In closed position, a further sliding of bolt 15 outwards is normally
prevented by a lever 44 which is in turn retained by a resilient stop. The lever 44
is freely rotatable about a shaft 45 which is supported by ends of small cross-section
in both side walls of lock case 1. The one end of lever 44 lies next to rod 41 against
end 40. By rotating lever 44 in the direction as shown by arrow 46 in figure 4, a
portion of lever 44 pushes end 40 against the action of spring 43 away from plate
5 and it is thus possible to move the day bolt from the closed position to the open
position. When lever 44 is left completely free, it is pushed by spring 43 and end
40 to the position as shown in figure 4 whereby day bolt 1 lies in the closed position.
Thereby lever 44 engages with a projection 51 said resilient stop which is formed
by one end of said leaf spring 32 which pushes slider 28 against night bolt 14. Said
end of leaf spring 32 is stronger and less distortable than spiral spring 43 with
the result that under the action of said spring 43 alone the lever cannot swing further
in the direction opposite the direction shown by arrow 46. When the action of spring
43 is however helped by an additional pulling force exerted on bolt 15, the projection
51 can then distort leaf spring 32. Lever 44 still swings further until head 39 lies
completely outside lock case 1 and portion 40' of end 40 lies between walls 42. Thereby
however as further explained below, the night bolt 14 has to be in closed position.
The bolt can then easily be swung about the lengthwise axis thereof over 180°. When
releasing bolt 15 after such swinging, the leaf spring 32 pushes lever 44 and thus
also bolt 15 back to the position as shown in figure 4.
[0022] The swinging of lever 44 can occur in two ways. As already mentioned above, the day
bolt 15 can be operated by the cylinder lock mechanism 9. The lever 44 is then part
of the transmission between day bolt 15 and operating member 12, 13 of said cylinder
lock mechanism 9. A sliding part 47 is also part of said transmission. Said sliding
part 47 is a small batten which runs on the side of lever 44, with the one end along
the inner side of fastening plate 5, is bent in the location of bolt 14 to run from
the side opposite arm 24 about shaft 8 and lies with the end thereof next to arm 24
on the side of cylinder lock mechanism 9. In the location of night bolt 14 said sliding
part 47 runs between said bolt 14 and side wall 3 of lock case 1. That end of sliding
part 47 which lies on the side of lever 44, lies facing a protrusion 48 from lever
44. When the day bolt 15 lies in closed position and the night bolt in open position,
as shown in figure 5, the last-mentioned end of sliding part 47 engages however protrusion
48 so that with a sliding of part 47 towards day bolt 15, the lever 44 is swung in
the direction shown by arrow 46. The sliding in said latter direction from the position
of sliding part 47 as shown in figure 5 is caused directly by the projection 13 of
operating member 12, 13 of the cylinder lock mechanism 9, when said operating member
is swung clockwise, that is thus in a direction opposite to the direction followed
to bring night bolt 14 to the closed position. As it appears from figure 5, the projection
13 first engages lever 33 which may also be swung. Thereby actually the slider 28
is displaced and the night bolt 14 unlocked but this is no drawback. As soon as lever
33 has been swung far enough, the projection 13 engages the end of sliding part 47,
which end is bent in the direction of lever 33, lies between said lever 33 and side
wall 3 and extends somewhat outside arm 24. On the side of cylinder lock mechanism
9, the sliding part 47 further comprises a projection 49 projecting towards fastening
plate 5, which is slidable inside a recess 50 which is provided in that side facing
side wall 3 of arm 24. It goes without saying that said recess opens on that edge
of arm 24 removed from plate 5, above the projecting portion, provided with notch
26, of the overthickness 24' of said arm 24. During the abovementioned sliding of
part 47, the projection 49 moves freely in recess 50 in such a way that the sliding
is not hampered by arm 24. The recess 50 is further so located that when arm 24 moves
away from day bolt 15, which occurs during the swinging to the closed position of
the night bolt 14, one end of said recess engages projection 49 and consequently arm
24 carries along sliding part 47. Thereby the sliding part 47 is released from lever
44. Said sliding part 47 then lies with the end thereof at a distance from the protrusion
48 of lever 44 as shown in figure 4. When the night bolt lies in the closed position,
it is thus no more possible by means of the cylinder lock mechanism 9, to operate
lever 44 and thus day bolt 15. Due to the sliding part 47 no longer engaging protrusion
48 of lever 44, said lever can be swung by distorting the resilient stop 32. In the
open position of night bolt 14, the sliding part 47 prevents such swinging which explains
why the night bolt has to lie in closed position to be able to swing the day bolt
15.
[0023] The second way to operate the day bolt 15 occurs through a door handle. Said door
handle is of a known structure and will be not described in detail here. Said handle
has not been shown either in the drawings for clearness sake. Only the holder for
the handle rod proper has been shown. Said holder is formed by said shaft 45 the lever
44 swings about, which shaft 45 is provided therefor with a square opening 53. To
said shaft 45 connects between lever 44 and side wall 2, an arm 54 which extends in
the direction of fastening plate 5 of lock case 1 and the end of which is bent over
in the direction of side wall 3. Said bent end lies between that portion connecting
to bolt 1 5, of lever 44 and fastening plate 5. In rest position said bent enu lies
however against the inner side of plate 5 at a slight distance from lever 44 which
is large enough to allow the slight swinging which is required to bring day bolt 15
to that position where it can be swung. Said end is pushed against plate 5 by a spiral
spring 55 which lies between arm 54 and rim 4 of lock case 1. The lever 44 can swing
completely independently from arm 54 and thus operate day bolt 15. When the arm 54
swings also which is only possible in the direction shown by arrow 46 from that position
shown in figure 4, said bent end of arm 54 engages lever 44 in such a way that the
arm 54 causes the lever 44 to swing together and operates through said lever 44, the
day bolt 15.
[0024] In the usual way a small handle plate 55 is further mounted on either side of section
6 wherein the lock is mounted, about the handle rod proper. Both handle plates 55
are fastened to one another and to section 6 in the same way as the key plates 20.
This occurs by means of two screw 56 which are screwed cross-wise through the one
handle plate 55 and which are screwed in threaded openings on that surface facing
section 6 of the other handle plate 55. Said latter handle plate is moreover also
mounted on the outer side of the door in such a way that no screws are visible there
either. But for the handle-rod opening, the handle plates are identical in shape and
size to the key plates 20. In side walls 2 and 3 are provided openings 57 for two
screws 56. Said screws 56 can as well as the one screw 21 run through the lock case
1 without being hampered by the parts located inside said case 1 and without hampering
the movement of said parts.
[0025] The above-described lock has a high safety against breaking-in and is easy to operate.
The day bolt can be controlled as well by a handle as by the cylinder lock mechanism
which controls the night bolt.
[0026] It must be understood that the invention is in no way limited to the above embodiments
and that many changes can be brought therein without departing from the scope of the
invention as defined by the appended claims.
1. Lock comprising a lock case (1), a night bolt (14) and a day bolt (15) co-operating
with one another, which night bolt (14) is swingably mounted inside the lock case
and one end of which, in the closing position, projects through an opening (16) in
the lock case (1), outside said case, and, in the opening position, is swung inside
the lock case, a cylinder lock mechanism (9) which is mounted on the lock case and
has a rotating operating member (12, 13) which co-operates with a transmission (24,
25, 26) to actuate both the night bolt (14) and the day bolt (15) so that the unlocking
of the door can be obtained through the cylinder lock mechanism and a key, characterized
in that the night bolt (14) is provided, on that portion thereof remaining inside
the lock case, on a side wall running in parallel relationship to the rotation axis,
with at least one protrusion, while the lock has a slider (28) which is slidable to-and-fro
relative to the bolt (14) inside the lock case (1) which slider (28) comprises a blocking
finger (29), which finger, in the night bolt closed position, engages that side of
the protrusion to which the night bolt (14) has to swing to open, said lock further
comprising a spring element (32) which pushes the slider (28) as far as possible towards
the night bolt (14) and a transmission (33) between the operating member (12, 13)
of the cylinder lock mechanism (9) and the slider (28) for moving the slider (28)
temporarily away from the night bolt (14) by rotating the operating member (12, 13)
in the direction to open the night bolt (14) in such a way that the slider blocking
finger (29) will not retain the bolt (14) any more.
2. Lock as defined in claim 1, characterized in that the operating member of the cylinder
lock mechanism (9) comprises a ring (12) and a projection (13) standing thereon, and
the transmission between said operating member and the slider (28) comprises a lever
(33) which is rotatably mounted inside the lock case, co-operates with the one end
thereof with the slider (28) and co-operates with the other end thereof with the operating
member projection (13).
3. Lock as defined in either one of claims 1 and 2, characterized in that the slider
(28) lies between two ribs (30 and 31) on the lock case wall, which ribs form guides
for the slider (28).
4. Lock as defined in any one of the claims 1 to 3, characterized in that the night
bolt protrusion (36) forms the wall of a notch.
5. Lock as defined in any one of claims 1 to 4, characterized in that the night bolt
comprises a second protrusion which in the open position of the night bolt, lies against
the slider finger (29), when said finger connects to the night bolt, and on such a
side of said finger that the swinging of the night bolt to the closed position is
prevented by said finger, while the transmission between the slider and the operating
member of the cylinder lock mechanism is so arranged that even by the swinging of
the operating member (12, 13) for bringing the night bolt to the closed position,
said transmission moves the slider away from the bolt.
6. Lock according to either one of claims 1 and 5, characterized in that the day bolt
(15) has a bevelled head (39), a tie rod (41) connecting thereto and an end projecting
outside said rod which is connected by said rod to the head and which co-operates
with a lever (44), the lock case comprising a guide wherein said end fits slidingly
but not swingably during the sliding from the open to the closed position of the day
bolt, and the lock comprises a resilient stop formed by leaf spring (32) which is
mounted inside the lock case, said leaf spring (32) being stronger and thus more difficult
to distort than the spring element (43) co-operating with said day bolt (15).
7. Lock according to claim 2 characterized in that the sliding part of the lock is
releasable from said lever (44) in such a way that in the released condition, the
swinging of said lever is possible by a deflecting of the leaf spring (32).
1. Serrure comprenant un boîtier (1 ), un pêne de nuit (14) et un pêne de jour (15)
qui coopèrent entre eux, ledit pêne de nuit (14) étant monté à pivotement à l'intérieur
du boîtier, pêne dont l'extrémité, en position de fermeture, dépasse du boîtier en
passant par une ouverture (16) ménagée dans le boîtier et est, en position de fermeture,
basculé à l'intérieur du boîtier, un mécanisme de serrure à barillet (9) monté dans
le boîtier et qui possède un organe de commande rotatif (12, 13) qui coopère avec
une transmission (24, 25, 26) pour actionner à la fois le pêne de nuit (14) et le
pêne de jour (15), de telle façon que le déverrouillage de la porte peut être réalisé
par le mécanisme de serrure à barillet et une clef, caractérisée en ce que le pêne
de nuit (14) présente sur sa partie demeurant à l'intérieur du boîtier, sur une paroi
latérale parallèle à l'axe de rotation, au moins une saillie, la serrure possédant
un coulisseau 28, qui peut glisser selon un mouvement de va-et-vient par rapport au
pêne (14), à l'intérieur du boîtier (1) ledit coulisseau (28) comprenant un doigt
de blocage (29), doigt qui, lorsqu'il vient buter contre le pêne de nuit (14), en
position de fermeture de celui-ci se trouve du côté de la saillie vers laquelle le
pêne de nuit (14) doit basculer pour s'ouvrir, ledit pêne comprenant, de plus, un
élément élastique (32) qui pousse le coulisseau (28) aussi loin que possible en direction
du pêne de nuit (14) et une transmission (33) entre l'organe de commande (12, 13)
du mécanisme de serrure à cylindre et le coulisseau (28) pour écarter temporairement
celui-ci du pêne de nuit (14) en faisant tourner l'organe de commande (12, 13) dans
la direction permettant d'ouvrir le pêne de nuit (14) de telle manière que le doigt
de blocage (29) ne retienne plus le pêne (14).
2. Serrure selon la revendication 1, caractérisée en ce que l'organe de commande du
mécanisme de serrure à barillet (9) comporte un anneau (12) présentant une saillie
(13) et en ce que la transmission entre ledit organe de commande et le coulisseau
(28) comprend un levier (33) qui est monté à rotation à l'intérieur du boîtier, coopère,
par une des ses extrémités, avec le coulisseau (28) et, par l'autre extrémité, avec
la saillie (19) de l'organe de commande.
3. Serrure selon l'une quelconque des revendications 1 et 2, caractérisée en ce que
le coulisseau (28) se trouve entre deux arêtes (30 et 31) ménagées sur la paroi du
boîtier, arêtes qui forment des guides pour le coulisseau (28).
4. Serrure selon l'une quelconque des revendications 1 à 3, caractérisée en ce que
la saillie du pêne de nuit (36) forme la paroi d'une rainure.
5. Serrure selon l'une quelconque des revendications 1 à 4, caractérisée en ce que
le pêne de nuit comporte une seconde saillie, qui dans la position ouverte du pêne
de nuit (14), se trouve contre le doigt (29) du coulisseau lorsque ledit doigt se
raccorde au pêne de nuit et cela de ce côté dudit doigt pour que basculement du pêne
de nuit en position fermée soit empêché par ledit doigt, tandis que la transmission
entre le coulisseau et l'organe de commande du mécanisme de serrure à barillet est
agencée de telle sorte que, même lors de basculement de l'organe de commande (12,
13) destiné à amener le pêne de nuit en position de fermeture, ladite transmission
écarte le coulisseau du pêne.
6. Serrure selon l'une quelconque des revendications 1 et 5, caractérisée en ce que
le pêne de jour (15) possède une tête biseautée (39), une tige de raccord (41) la
reliant et une extrémité faisant saillie hors de ladite tige et qui coopère avec un
levier (44), le boîtier comportant un guide dans lequel ladite extrémité s'adapte
à glissement mais sans possibilité de rotation pendant que le pêne de jour (15) glisse
de la position ouverte vers la position fermée et en ce que la serrure comporte une
butée élastique formée par un ressort à lame (32) qui est monté à l'intérieur du boîtier,
ledit ressort à lame (32) étant plus résistant et donc plus difficile à déformer que
l'élément élastique (43) qui coopère avec ledit pêne de jour (15).
7. Serrure selon la revendication 6, caractérisée en ce que la partie formant glissière
de la serrure peut être désaccouplée dudit levier (44) de telle manière que dans la
position désaccouplée, le basculement dudit levier est rendue possible grâce à une
déformation du levier à lame (32).
1. Schloss mit einem Schlossgehäuse (1), einem Nachtriegel (14) und einem Tagesriegel
(15), welche miteinander zusammenwirken, wobei der Nachtriegel (14) schwenkbar im
Schliessgehäuse gelagert hat und ein Ende aufweist, welches in der Schliessstellung
durch eine Öffnung (16) des Schlossgehäuses (1) hindurch aus diesem hervorsteht und
in der Offenstellung in das Schlossgehäuse eingeschwenkt ist, einem am Schlossgehäuse
montierten Zylinderschlossmechanismus (9) mit einem verdrehbaren Betätigungsteil (12,
13), welches zur Betätigung des Nachtriegels (14) sowie auch des Tagesriegels (15)
mit einer Übertragungsanordnung (24, 25, 26) zusammenwirkt, so dass das Aufschliessen
der Tür mittels des Zylinderschloss-mechanismus und eines Schlüssels bewerkstelligbar
ist, dadurch gekennzeichnet, dass der Nachtriegel (14) an einer parallel zur Drehachse
verlaufenden Seitenwand seines innerhalb des Schlossgehäuses bleibenden Teils mit
wenigstens einem Vorsprung versehen ist, während das Schloss einen innerhalb des Schlossgehäuses
(1) relativ zu dem Riegel (14) hin und her verschieblichen Schieber (28) aufweist,
mit einem Verriegelungsfinger (29), welcher sich in der Schliessstellung des Nachtriegels
an der Seite des Vorsprungs in Anlage befindet, in deren Richtung der Nachtriegel
für das Öffnen zu verschwenken ist, und dass das Schloss ferner ein den Schieber (28)
so weit wie möglich in Richtung auf den Nachtriegel (14) schiebendes Federelement
(32) sowie eine zwischen dem Betätigungsteil (12, 13) des Zylinderschloss- mechanismus
(9) und dem Schieber (28) angeordnete Übertragungsanordnung (33) aufweist, mittels
dessen der Schieber (28) durch Verdrehen des Betätigungsteils (12, 13) in der Richtung
zum Öffnen des Nachtriegels (14) zeitweilig derart vom Nachtriegel (14) weg bewegbar
ist, dass der Verriegelungsfinger (29) den Riegel (14) nicht mehr festhält.
2. Schloss nach Anspruch 1, dadurch gekennzeichnet, dass das Betätigungsteil des Zylinderschlossmechanismus
(9) einen Ring (12) und einen von diesem abstehenden Vorsprung (13) aufweist und dass
die Übertragungsanordnung zwischen dem Betätigungsteil und dem Schieber (28) einen
verschwenkbar im Schlossgehäuse gelagerten Hebel (33) aufweist, welcher met einem
seiner Enden mit dem Schieber (28) und mit dem anderen seiner Enden met dem Vorsprung
(13) des Betätigungsteils zusammenwirkt.
3. Schloss nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schieber (28)
zwischen zwei Rippen (30 und 31) an einer Wand des Schlossgehäuses liegt, welche Führungen
für den Schieber (28) bilden.
4. Schloss nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Vorsprung
(36) des Nachtriegels eine Wand einer Kerbe bildet.
5. Schloss nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Nachtriegel
einen zweiten Vorsprung hat, welcher sich in der Offenstellung des Nachtriegels derart
an einer Seite des in der Anlagestellung am Nachtriegel befindlichen Schieberfingers
(29) befindet, dass das Verschwenken des Nachtriegels in die Schliessstellung durch
den Finger verhindert ist, während die Übertragungsanordnung zwischen dem Schieber
und dem Betätigungsteil des Zylinderschlossmechanismus so ausgebildet ist, dass sie
den Schieber durch Verdrehen des Betätigungsteils (12, 13) zum Bewegen des Nachtriegels
in die Schliessstellung von dem Riegel weg bewegt.
6. Schloss nach Anspruch 1 oder 5, dadurch gekennzeichnet, dass der Tagesriegel (15)
einen abgeschrägten Kopf (39), eine damit verbundene Verbindungsstange (41) und ein
ausserhalb der Stange hervorstehendes Ende aufweist, welches über die Stange mit dem
Kopf verbunden ist und mit einem Hebel (44) zusammenwirkt, dass das Schlossgehäuse
eine Führung aufweist, in welcher das genannte Ende bei der Verschiebung des Tagesriegels
von der Offenstellung in die Schliessstellung verschieblich aber nicht verschwenkbar
geführt ist, und dass das Schloss einen elastischen Anschlag in Form einer innerhalb
des Schlossgehäuses angebrachten Blattfeder (32) aufweist, welche härter un damit
schwerer verformbar ist als das met dem Tagesriegel (15) zusammenwirkende Federelement
(43).
7. Schloss nach Anspruch 6, dadurch gekennzeichnet, dass das verschiebliche Teil des
Schlosses in einer solchen Weise von dem Hebel (44) lösbar ist, dass der Hebel im
gelösten Zustand unter Verformung der Blattfeder (32) verschwenkbar ist.