GB2122244A - Multipoint side hung door lock - Google Patents
Multipoint side hung door lock Download PDFInfo
- Publication number
- GB2122244A GB2122244A GB8212042A GB8212042A GB2122244A GB 2122244 A GB2122244 A GB 2122244A GB 8212042 A GB8212042 A GB 8212042A GB 8212042 A GB8212042 A GB 8212042A GB 2122244 A GB2122244 A GB 2122244A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latch
- deadbolt
- locking
- move
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
- E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
- E05C9/042—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening with pins engaging slots
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
- E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
- E05C9/047—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening comprising key-operated locks, e.g. a lock cylinder to drive auxiliary deadbolts or latch bolts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
A multipoint door lock has a latch-bolt, head- and sill-bolts and a dead bolt. A handle on the inside of the door operates a follower 19 for retracting the latch-bolt 18 if turned in one direction, whilst rotation in the opposite direction causes the head- and sill-bolts to be shot. Dead-bolt 21 is shot by means of cylinder lock L having a radial projection 57 which first lifts a plate bearing pin 31 then engages surface 65 in a cut-out in the bolt to drive it outwards and then releases the plate. This also causes pin 31 to travel up limb 64, along straight 63 and down limb 66 of an inverted U-shaped slot in the lock casing, so providing a detent to hold the bolt in its end positions. The dead-bolt operation may occur before or after operating the head- and sill-bolts. A night-latch 20 is provided to prevent withdrawal of the dead-bolt by a key, but is operable only when the head- and sill-bolts are in their fastening positions. <IMAGE>
Description
SPECIFICATION
Multipoint side hung door lock
This invention relates to a multipoint side hung
door lock for use on hinged doors of either left or
right hand and which is capable of fitting in a
limited space such as is provided on entrance
doors having a narrow stile.
Nowadays, for front and rear entrance doors,
security is all important and there is a demand for
not only a central deadlocking facility but also for
the provision of head and sill bolts all of which are
preferably operated by a single lock mechanism.
Furthermore, it is desirable that such a lock
mechanism incorporates a traditional spring
loaded, handle operated latch so that the door to which the lock is fitted can be slammed shut without the need to use a key or even the handle.
Multipoint door locks are already known, which
have the above required facilities, but they suffer from the disadvantage that they have to be operated in a certain sequence, e.g. if the
mechanism is incorrectly operated by not adhering to the required order of operation, the
resulting confusion to the user could result in the
user mistakenly leaving the door in an insecure state. Some such multipoint locks have two operating handles, one of which is for the traditional deadlock and the other of which operates the head and sill bolts or alternatively one of the handles, instead of operating the deadlock, can operate the spring loaded latch and a further operating device is then operated to deadlock the mechanism.
We have now ascertained that there is a requirement for a multipoint lock which has all the above facilities and yet which can be operated in various different sequences without in any way affecting the other functions of the lock.
Furthermore, it is desirable that the lock has an internal night latching facility which will prevent operation of the lock externally with a key, and which facility can only be used when the deadlock and also the head and sill bolts have been thrown to their locking position.
According to the present invention, we provide a multipoint lock comprising a casing made up of a pair of spaced side plates and a face plate, and a lock mechanism located between the side plates, said mechanism including a spring loaded latch and a deadbolt both slidable between extended locking and retracted unlocked positions in apertures in the face plate, and means to move a head bolt and a sill bolt between locking and unlocked positions in a direction normal to the direction of movement of the deadbolt, a drive hub actuated by an external handle operated spindle for moving the latch to its unlocked position, the arrangement being such that the head and sill bolts can be moved to their locking position regardless of whether or not the deadbolt has been moved to its locking position and the dead bolt can be moved to its locking position by operation of a locking cylinder regardless of whether or not the head and sill bolts have been moved to their locking position.
Preferably, when the head and sill bolts are in their locking position, and the deadbolt is in its locking position, the head and sill bolts, as well as the deadbolt, are deadlocked.
Preferably, the mechanism includes a night latch operable from an interior side of the lock, to overlock the deadbolt and hence the head and sill bolts in their locking positions to prevent operation of the locking cylinder from an exterior side of the lock.
Preferably, the night latch can only be moved to its overlocking position when the head and sill bolts are in their locking position.
Also according to the present invention, we provide a multipoint lock for a side hung door comprising a casing made up of a pair of spaced side plates and a face plate, and a lock mechanism located between the side plates, said mechanism including a spring loaded latch and a deadbolt, both slidable between extended locking and retracted unlocked positions in apertures in the face plate, and means to move a head bolt and a sill bolt between locking and unlocked positions in a direction normal to the direction of movement of the deadbolt, a drive hub actuated by an external handle operated spindle for moving the latch to its unlocked position, the lock incorporating a night latch to overlock the deadbolt when in its locking position so as to prevent operation of the locking cylinder from an exterior face of the lock to move the deadbolt to its unlocked position, the night latch being operable only when the head and sill bolts are in their locking position.
Also according to the present invention we provide a multipoint lock for a side hung door comprising a casing made up of a pair of spaced side plates and a face plate, and a lock mechanism located between the side plates, said mechanism including a spring loaded latch and a deadbolt, both slidable between extended locking and retracted unlocked positions in apertures in the face plate, and means to move a head bolt and a sill bolt between locking and unlocked positions in a direction normal to the direction of movement of the deadbolt, a drive hub actuated by an external handle operated spindle for moving the latch to its unlocked position, the lock incorporating a night latch to overlock the deadbolt when in its locking position so as to prevent operation of the locking cylinder from the exterior face of the lock to move the deadbolt to its unlocked position, the night latch also being effective to overlock the head and sill bolts.
Hence, when the night latch is in its overlocking position, an indication is given that the deadbolt, head bolt and sill bolt are all in their locking positions.
Preferably, the drive hub is rotatable by the exerior handle operated spindle in one sense to move the spring loaded latch from its locking position to its unlocked position, and if the head and sill bolts are already in their locking position, to move them to their unlocked position, and movable in an opposite sense to operate the means to move the head and sill bolts to their locking poSition.
Preferably, the means to move the head and sill bolts between their locking and unlocked position comprise a drive plate rotatably supported about'the same axis as that about which the drive hub can rotate, but rotatable relative thereto, the drive plate being connected by means of a pin and slot arrangement to a sill bolt drive plate slidably mounted between the side plates for movement normal to the direction of movement of the deadbolt, the drive plate having a drive pin thereon engageable by first and second projecting lugs on the drive hub, there also being a connecting pin on the drive plate engageable in a slot in a follower plate also supported for rocking movement between the side plates so that rocking movement of the drive plate in one sense will cause rocking movement of the follower plate in the opposite sense and a drive pin on the follower plate pivotally connected to a head bolt drive plate, slidably mounted between the side plates for movement in a direction normal to the direction of movement of the deadbolt, the first lug having two operating faces, one of which engages a projection on the rear end of the latch to move the latch to its unlocked position when the drive hub is rotated in said one sense and the other of which engages the drive pin to move the head and sill bolts to their locking position when the drive hub is rotated in the opposite sense, there also being a second lug on the drive hub engageable with the drive pin on the drive plate to move the head and sill bolts to their unlocked position from their locking position when the drive hub is rotated in said one sense to move the latch to its unlocked position.
In the preferred arrangement, there are a pair of drive plates and follower plates spaced apart by suitable spacers and the drive hub is located
between the two drive plates.
Preferably, the deadbolt is of laminated
construction with one or more sheets of vandal
proof ceramic material located between two
sheets of steel at the leading edge of the dead
bolt, there being a cylinder latch plate located
between the two sheets of steel at the rear end of
the deadbolt, the cylinder latch plate being
slidable between the two sheets of steel in a
direction at right angles to the direction of
movement of the deadbolt against the bias of a
spring, there being a deadbolt latch pin supported
on the cylinder latch plate and movable in an
inverted U-shaped slot in one of the lock side
plates by operation of the locking cylinder, the
arrangement being such that when the deadbolt
latch pin is located in the rearmost arm of the
inverted U-shaped slot, the deadbolt is
maintained in its unlocked position and when the
deadlock latch pin is located in the foremost arm
of the said slot, the deadbolt is held in its locking
position.
Preferably, the locking cylinder has a lock barrel with a lifting cam thereon, operation of the cylinder to move the deadbolt to its locking position causing the lifting cam first to lift the cylinder latch plate from a position of rest against its spring bias so as to move the deadbolt latch pin out of the rearmost arm of the inverted Ushaped slot, whereupon continued rotation of the lock barrel will move the lifting cam into engagement with a drive surface on the deadbolt so as to move the deadbolt together with the cylinder latch plate and the deadbolt latch pin to a locking position and causing the deadbolt latch pin to move along the base of the slot and then to move, under the bias of the spring, down into the foremost arm of the slot so as firmly to lock the deadbolt in its locking position with the cylinder latch plate returned to its position of rest.The deadbolt may be moved to its unlocking position by a similar operation initiated by moving the locking barrel in the opposite sense.
Preferably, a spring biased locking finger is associated with the deadbolt, the locking finger being pivotally supported on the drive pin on the follower plate and being associated with the night latch mechanism.
When the deadbolt is in its locking position, and the head and sill bolts have been moved to their locking position the locking finger will move under the influence of its spring bias to a position in which a step therein overlies a guide pin movable with the deadbolt and wherein a tail portion of the locking finger lies behind said guide pin, whereupon the night latch may be moved from its inoperative position to an operative position to engage behind the locking finger and prevent it swinging against its spring bias to its inoperative position thus preventing movement of the guide pin on the deadbolt, and hence the deadbolt itself to its unlocked position by operation of the locking cylinder until the night latch is moved back to its inoperative position.
Preferably, the night latch is supported for rocking movement about the same axis as the axis about which the or each follower plate may swing.
Preferably, the cylinder latch plate has an inclined camming surface on its rear end movable into engagement with the tail portion of the locking finger when the locking cylinder is operated to release the deadbolt from its deadlock position and move it to its unlocked position, said inclined camming surface moving upwardly into engagement with the tail portion when the cylinder latch plate is lifted by the lifting cam on the lock barrel so as to lift the locking finger out of the path of the deadbolt guide pin.
This can only occur if the night latch has been moved to its inoperative position.
Preferably, the locking cylinder may also be used to move the latch from its locked position.
For example, when it is desired to gain entry through the door from the exterior side of the lock, the locking cylinder is first operated to move the deadbolt to its unlocked position, and if there is no exterior handle a further rotation of the locking cylinder will retract the latch from its locking position to its unlocked position.To achieve this, a latch push rod is supported between the steel plates of the deadbolt at a central location, this latch push rod being movable into the path of the lifting cam on the locking barrel when the deadbolt is moved to its unlocked position, whereupon further rotation of the locking barrel will move the lifting cam into engagement with the free end of the latch push rod so as to lift the latch push rod into engagement with a lower end of a latch drive plate slidably mounted between the side plates of the lock, said latch drive plate being pivotally connected at its opposite end to one arm of a latch bellcrank lever pivotally supported between the side plates, the other end of which is engageable with a pin on the latch so that lifting movement of the latch drive plate causes the latch bellcrank to engage said pin and move said latch to its unlocking position.
The invention is now described by way of example with reference to the accompanying drawings, in which: Figure 1 is a side elevation of a multipoint lock for a side hung door or window which schematically indicates the function and operation of the lock;
Figure 2 is a side elevation after removal of a side plate and to an enlarged scale, showing the components of the lock mechanism, some of which have been removed for the sake of clarity, all in their withdrawn or unlocked position;
Figure 3 is a view similar to Figure 2 but showing the various components in their locking position, and
Figure 4 is a further side elevational view similar to Figure 2 but without said components having been removed.
Referring to Figure 1 of the drawings, the lock is made up of pair of spaced side plates S and a face plate F, with all the mechanism being located between and supported by the side plates S. The lock has a spring loaded latch 1 8 slidable in an aperture in front plate F and a deadbolt 12 likewise slidable in a further aperture in the front plate F. As can be seen from Figures 2 and 3, a drive hub 1 9 is pivotally supported in journals J supported in the two side plates S, the journals having a rectangular aperture therein to receive a traditional spindle to which either one or two operating levers can be connected.The normal position of rest of an operating lever is represented by the line A in Figure 1 and by moving the operating lever in one sense through about 450 to the position shown by the line C, one lock function is achieved and by moving the lever in the opposite sense to a position represented by the line B, a further lock function is achieved. Located below the hub 19 is a night latch 20 again supported for rocking movement in the side plates S by means of a pair of journals N, the night latch being movable between the
positions represented by the lines D and E in
Figure 1, representing respectively an inoperative or unlocked and an operative, locking position.
Located beneath the night latch 20 is a traditional locking cylinder L.
Referring now to Figure 2, the drive hub 19 has a first lug 41 projecting therefrom, this lug having a first operating face 43 engageable with a projection 45 on the rear end of the latch 18. The latch 1 8 is normally biased to its extended locking position by means of a spring 47 bearing against the rear end of the latch. But when the drive hub is rocked by operation of an operating lever from the position shown at A in Figure 1 to the position shown at B, so the face 43 on the lug 41 will move into engagement with the projection 45 on the rear end of the latch and move the latch to its withdrawn or unlocking position. This allows a door or window to which the lock is fitted to be opened in the normal manner.
A pair of drive plates 4 is pivotally supported on the journal of the drive hub 19 and these are held apart by spacers supported on a drive pin 25 and on a connecting pin 49 connecting the two drive plates 4 together. The first lug 41 has a second operating face 51 thereon, the arrangement being such that when the operating lever is moved from the position represented by the line A in Figure 1 to the position represented by the line C, the face 51 will move into engagement with the spacer on the drive pin 25, thus causing the drive plates 4 to move from the position shown in Figure 2 to the position shown in Figure 3. The spacer supported on the connecting pin 49 is engageable in slot 53 in a pair of follower plates 6 held apart by a pair of follower plate spacers 26 each mounted on a plate connecting pin.These plates 6 are supported for rocking movement between the side plates S on the journal N of the night latch 20 and movement of the drive plates 4 to the position shown in Figure 3 also causes the follower plates 6 to move from their Figure 2 to their Figure 3 position.
The drive plates 4 are connected to a sill bolt drive plate 10 mounted for longitudinal sliding movement between the side plates S by means of a rod drive pin 24 engaging in slot 55 in the plates 4, the lower end of the plate 10 being connected to a carrier 21 for a sill bolt (not shown) by means of a pin 27. Likewise, the follower plates 6 are pivotally connected to the
lower end of a head bolt drive plate 5 by means of a rod drive pin 124, the head bolt drive plate also
being longitudinally mounted for sliding movement between the side plates S and at its upper end being connected to a carrier 21 for a head bolt by means of a connecting pin 27.It will thus be appreciated that when the mechanism is moved from the position shown in Figure 2 to the position shown in Figure 3, the head and sill bolts
(not shown) will be moved from their withdrawn or unlocked position to a locked position in which their free ends engage in suitable apertures in the head and sill of a frame surrounding the door or window to which the lock is fitted.
A second lug 55 is also carried by the drive hub
1 9 and if the head and sill bolts are in their locking position, they can be moved to their unlocked position merely by moving the operating lever from the position shown by the line A in
Figure 1 to the position shown by the line B which moves the latch to its unlocked position. This causes the lug 55 to move up into engagement with the spacer bn the drive pin 25 between the drive plates 4, thus causing the drive plates and hence the follower plates 6 to move from their position shown in Figure 3 back to their position shown in Figure 2, this in turn causing the head and sill bolts to be withdrawn to their unlocked position.
The deadbolt 12 is operated in a traditional manner by means of a key or other operating device associated with the locking cylinder L. The locking cylinder has a lock barrel having a lifting cam 57 thereon and when the lock barrel is rotated in an anti-clockwise sense as shown in
Figure 1 , the lifting cam 57 will move into engagement with the under edge 59 of a cylinder latch plate 8 supported between two outer steel sheets forming part of the deadbolt. The deadbolt 12 is of laminated construction at its leading edge with the two outer steel sheets sandwiching a pair of vandal proof sheets of ceramic material therebetween, the laminations being held together by means of rivets 32.The cylinder latch plate 8 has a cylinder latch plate pin 31 projecting therefrom and slidable in a slot 60 in each of the steel plates and a deadbolt latch pin 30 is likewise slidable in a further vertical slot 61 formed in each of the steel plates. The deadbolt latch pin 30 projects through one of the steel plates and engages in an inverted U-shaped slot 63 (see
Figure 1) in one of the side plates S. When the deadbolt 12 is in its unlocked position, shown in
Figure 2, its deadbolt latch pin 31 will be engaged in the innermost or right hand leg 64 of the slot 63, thus holding the deadbolt in its unlocked position. However, when the lifting cam 57 is moved up into engagement with the underside 59 of the latch plate 8 on operation of the locking cylinder, the cylinder latch plate 8 will be lifted, against the bias of a spring 65, into alignment with the horizontal run of the slot 63.Continued rotation of the lock barrel will cause the lifting cam 57 to move into engagement with a drive surface 65 formed by means of a cut-out out in the underside of the two steel plates of the deadbolt 12 and will cause the deadbolt to be slid from the position shown in Figure 2 to the position shown in Figure 3 as the lock barrel is rotated further. This will cause the deadbolt latch pin 30 to move along the horizontal run of the slot 63 but as soon as the deadbolt 12 is fully extended into its locking position, so the spring 65 will cause the deadbolt latch pin 30 to move down into the foremost or left hand leg 66 of the slot 63, thus causing the cylinder latch plate 8 to drop back into the position shown in Figure 3. The presence of the deadbolt latch pin 30 in the foremost leg 66 of the slot 63 thus prevents the deadbolt 12 from being forced out of its locking position.
When it is desired to return the deadbolt 12 to its unlocked position, the above described operation is reversed, by rotating the lock barrel in an anti-clockwise direction, the lifting cam 57 will move into engagement with the underside 59 of the cylinder latch plate 8, thus lifting it against the bias of spring 1 7 so that the latch pin 30 is moved up out of the foremost leg 66 of the slot 63, whereupon continued rotation of the lock barrel will cause the lifting cam 57 to move into engagement with a further drive surface 67 in the cut-outs of the two steel plates of the deadbolt.
Hence, the deadbolt 12 is moved back from the position shown in Figure 3 to the position shown in Figure 2, and on reaching this position the spring 1 7 will cause the latch plate to drop back to the position shown in Figure 2 and the latch pin to move back into the innermost or right hand leg 64 of the slot 63, thus holding the deadbolt in its unlocked position.
A locking finger 7 is associated with the deadbolt mechanism and with the night latch 20 to prevent undesirable external operation of the locking cylinder, e.g. by a burglar having a skeleton key. The locking finger 7 is pivotally supported on the rod drive pin 124 on the follower plates 6 under the bias of a spring 1 6.
When the mechanism is in its unlocked position, a tail portion 69 of the locking finger 7 lies upon a guide slot 71 in the side plates S, with a step 73 on the locking finger engaging in front of the guide pin 28 supported on the deadbolt and sliding in a guide slot 71 in the side plates S, with a step 73 on the locking finger engaging in the front of the guide pin 28 (see Figure 2).If it is desired merely to move the deadbolt 12 to its locking position shown in Figure 3 without moving the head and sill bolts to their locking positions the locking barrel is rotated anti-clockwise and a leading edge 75 of the latch plate 8 will move up into engagement with an undersurface portion 77 of the finger 7 so as to lift the finger 7 against its spring bias just sufficiently to move the step 73 to a position above the guide pin 28, thereby allowing the deadbolt 12 to be moved to the
Figure 3 positions. As the deadbolt 12 slides forward, so the guide pin 28 will move with it and the under surface 77 on the locking finger will rest upon the guide pin 28. If it is desired to set the night latch 20 to its locking position, it will then be necessary to move the head and sill bolts to their locking position, so that an arcuate cut-out 79 in the upper edge of the locking finger 7 is swung to the position shown in Figure 3, thus allowing the night latch 20 to be moved from the position shown in Figure 2 to the position shown in Figure 3, e.g. from the position represented by the line D in Figure 1 to the position represented by the line E.When in this position, the tail portion 69 of the locking finger 7 will move down over the advanced guide pin 28, as shown in
Figure 3, with the step 23 lying over the guide pin 28, thus making it impossible to move the deadbolt from its locking position shown in Figure 3 to the unlocked position shown in Figure 2 (it cannot swing back due to the presence of the night latch 20 in the arcuate cut-out 79) by external operation of the locking cylinder.
When the head and sill bolts are moved to their locking position before the deadbolt is moved to its locking position (it is possible to move either the deadbolt first or the head and sill bolts first), the pivot pin 24 for the locking finger will move upwardly to the position shown at 81 in Figure 2 and this merely means that the tip of the tail portion 69 of the locking finger will swing into its position shown in Figure 3, as the guide pin 28 moves forward from its Figure 2 to its Figure 3 position allowing the night latch 20 to be operated.
Because the step 73 is moved upwardly, it does not prevent subsequent forward movement of the deadbolt guide pin 28 when the deadbolt is moved to its locking position. It will thus be appreciated that the lock can be "deadbolted" first and then the head and sill bolts moved to their locking position (where they will automatically become deadlock) or vice versa.
However, the night latch mechanism can only be operated when both the head and sill bolts are in their locking position and the deadbolt is in its locking position.
Although not essential for the satisfactory operation of the head and sill bolts, nevertheless a flat spring 3 is supported on each end of one of the side plates S and bears against a projection on the respective drive plates 5 and 10.
Normally, an operating lever or handle is provided both on the inside and on the outside of the door, i.e. on each end of the spindle engageable in the drive hub 19 as this allows multi-point locking on leaving the premises. In this respect, it will be noted that the head and sill bolts can only be operated by use of an operating lever. If, however, there is only an internal operating lever, this means that the only means of entry from the exterior side of the lock is by operation of the locking cylinder Accordingly, the locking cylinder must not only operate the deadlock (exactly as previously described), but it must also be able to move the latch 18 to its unlocked position.
For this purpose, a latch push rod 11 is slidably supported between the two steel plates of the deadbolt 12 2 by means of a pin 29 engaging in a slot 83 in each of the plates. When the deadbolt 12 is moved from its locking position shown in
Figure 3 to the unlocked position shown in Figure 2, so the latch push rod 11 will move back to the position shown in Figure 2. This means that if the lock barrel is rotated again anti-clockwise, i.e. a second turn anti-clockwise, after moving the deadbolt 1 2 to its unlocked position, the lifting cam 57 will move into engagement with a nose portion 85 on the push rod 11, thus lifting the push rod to the top of the slot 83.This causes the pin 29 to move into engagement with the under surface 87 of a latch drive plate 9 slidably supported between the two side plates S (there is a cut-out 89 in the plate 9 allowing the plate to
slide over the journal N of the night latch 20). The
upper end of the drive plate 9 is pivotally
connected at 91 (see Figure 4) to one arm of a
latch bellcrank lever 13 mounted for rocking
movement between the two side plates S about
an axis 93.The other arm of the bellcrank lever
13 is engageable with a pin 95 on the lower end
of the latch 1 8 (which pin slides in a slot 97 in the
side plate and acts as a guide for the latch 18)
and as the drive plate 9 is moved upwardly by
upward movement of the push rod 11, so the
bellcrank lever 13 will be rocked anti-clockwise as
shown in Figure 3 so as to move the pin 95 to the
right hand end of the slot 97 and move the latch 1 8 to a withdrawn unlocked position. The door to
which the lock is fitted can then be opened.
It will thus be appreciated that we provide a
multipoint lock for entrance doors having a
central deadbolting facility and head and sill bolts
but with a traditional spring loaded latch. The lock
has been designed so as not to confuse the user
and accordingly it is possible for the user to move
the handle to operate the head and sill bolts or to
operate the deadbolt in either order. Also, once
the head and sill bolts are in their locking position,
and the deadbolt is in its locking poSition, the
head and sill bolts are also deadlocked. This
happens even if the deadbolt is moved to its
locking position before the head and sill bolts.
Furthermore, the lock includes, it is believed for
the first time on a multipoint lock, a night latching
facility operable from one side of the door so that ,any attempt to move the deadbolt to an unlocked
position from the other side of the door is
impossible. what is more, the night latching
facility can only be brought into operation when
the head and sill bolts have been moved to their
locking position, whereupon they also come
under the influence of the night latch. This
therefore indicates to the user that the door is as
secure as it can be.
What is more, the lock can still be operated
without head and sill bolts and used as a
conventional deadlock.
It is therefore possible to supply two identical
lock mechanisms for front and back entrance
doors of a house but only to provide the head and
sill bolts for one of the doors. Normally, the door
will have levers on both sides, thus allowing
multipoint locking, release of the mechanism and
deadlocking from both sides. However, if the door
only has a lever on the inside, multipoint locking
can only be achieved from the inside. Also, entry
from outside cannot be gained when the head and
sill bolts have both been engaged from the inside.
If entry from outside is desired, then on exiting the
door, the head and sill bolts must both remain
retracted, i.e. in their unlocked position, and the
door is secured only by the spring-loaded latch
and the key-operated deadbolt. To open the door
from outside, the deadbolt is first moved to its
unlocked position by turning the key once and
then releasing the latch by turning the key again.
Furthermore, the whole mechanism is
extremely compact and will fit within the available dimensions of modern replacement front and rear entrance doors, i.e. in the stile of the door. What is more, the spring-loaded latch 1 8 can be removed and reversed so as to convert the door from left hand to right-hand operation by the removal of a single screw.
It will also be appreciated that by providing a door with a locking facility in the jamb, and the heat and sill frame members, the weathering performance of the door is maximised.
Claims (Filed on 18.3.83)
1. A multipoint lock comprising a casing made up of a pair of spaced side plates and a face plate, and a lock mechanism located between the side plates, said mechanism including a spring loaded latch and a deadbolt both slidable between extended locking and retracted unlocked positions in apertures in the face plate, and means to move a head bolt and a sill bolt between locking and unlocked positions in a direction normal to the direction of movement of the deadbolt, a drive hub actuated by an external handle operated spindle for moving the latch to its unlocked position, the arrangement being such that the head and sill bolts can be moved to their locking position regardless of whether or not the deadbolt
has been moved to its locking position and the deadbolt can be moved to its locking position by
operation of a locking cylinder regardless of whether or not the head and sill bolts have been moved to their locking position.
2. A multipoint lock according to claim 1 in which, when the head and sill bolts are in their locking position, and the deadbolt is in its locking position, the head and sill bolts, as well as the deadbolt, are deadlocked.
3. A multipoint lock according to claim 1 or 2 in which the mechanism includes a night latch operable from an interior side of the lock, to overlock the deadbolt and hence the head and sill bolts in their locking positions to prevent operation of the locking cylinder from an exterior side of the lock.
4. A multipoint lock according to claim 3 in which the night latch can only be moved to its overlocking position when the head and sill bolts are in their locking position.
5. A multipoint lock for a side hung door comprising a casing made up of a pair of spacing side plates and a face plate, and a lock mechanism located between the side plates, said mechanism including a spring loaded latch and a deadbolt, both slidable between extended locking and retracted unlocked positions in apertures in the face plate, and means to move a head bolt and a sill bolt between locking and unlocked positions in a direction normal to the direction of movement of the deadbolt, a drive hub actuated by an external handle operated spindle for moving the latch to its unlocked positiOns, the lock incorporating a night latch to overlock the deadbolt when in its locking position so as to prevent operation of the locking cylinder from an exterior face of the lock to move the deadbolt to its unlocked position, the night latch being operable only when the head and sill bolts are in their locking position.
6. A multipoint lock for a side hung door comprising a casing made up of a pair of spaced side plates and a face plate, and a lock mechanism located between the side plates, said mechanism including a spring loaded latch and a deadbolt, both slidable between extended locking and retracted unlocked positions in apertures in the face plate, and means to move a head bolt and a sill bolt between locking and unlocked positions in a direction normal to the direction of movement of the deadbolt, a drive hub actuated by an external handle operated spindle for moving the latch to its unlocked position, the lock incorporating a night latch to overlock the deadbolt when in its locking position so as to prevent operation of the locking cylinder from an exterior face of the lock to move the deadbolt to its unlocked positions, the night latch also being effective to overlock the head and sill bolts.
7. A multipoint lock according to any one of claims 1-6 in which the drive hub is rotatable by the exterior handle operated spindle in one sense to move the spring loaded latch from its locking position to its unlocked position, and if the head and sill bolts are already in their locking position, to move them to their unlocked position, and movable in an opposite sense to operate the means to move the head and sill bolts to their locking position.
8. A multipoint lock according to any one of claims 1-7 in which the means to move the head and sill bolts between their locking and unlocked position comprise a drive plate rotatably supported about the same axis as that about which the drive hub can rotate, but rotatable relative thereto, the drive plate being connected by means of a pin and slot arrangement to a sill bolt drive plate slidably mounted between the side plates for movement normal to the direction of movement of the deadbolt, the drive plate having a drive pin thereon engageable by first and second projecting lugs on the drive hub, there also being a connecting pin on the drive plate engageable in a slot in a follower plate also supported for rocking movement between the side plates so that rocking movement of the drive plate in one sense will cause rocking movement of the follower plate in the opposite sense, and a drive pin on the follower plate pivotally connected to a head bolt drive plate, slidably mounted between the side plates for movement in a direction normal to the direction of movement of the deadbolt, the first lug having two operating faces, one of which engages a projection on the rear end of the latch to move the latch to its unlocked position when the drive hub is rotated in said one sense and the other of which engages the drive pin to move the head and sill bolts to their locking position when the drive hub is rotated in the opposite sense, there also being a second lug on the drive hub engageable with the drive pin on the drive plate to move the head and
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (14)
1. A multipoint lock comprising a casing made up of a pair of spaced side plates and a face plate, and a lock mechanism located between the side plates, said mechanism including a spring loaded latch and a deadbolt both slidable between extended locking and retracted unlocked positions in apertures in the face plate, and means to move a head bolt and a sill bolt between locking and unlocked positions in a direction normal to the direction of movement of the deadbolt, a drive hub actuated by an external handle operated spindle for moving the latch to its unlocked position, the arrangement being such that the head and sill bolts can be moved to their locking position regardless of whether or not the deadbolt
has been moved to its locking position and the deadbolt can be moved to its locking position by
operation of a locking cylinder regardless of whether or not the head and sill bolts have been moved to their locking position.
2. A multipoint lock according to claim 1 in which, when the head and sill bolts are in their locking position, and the deadbolt is in its locking position, the head and sill bolts, as well as the deadbolt, are deadlocked.
3. A multipoint lock according to claim 1 or 2 in which the mechanism includes a night latch operable from an interior side of the lock, to overlock the deadbolt and hence the head and sill bolts in their locking positions to prevent operation of the locking cylinder from an exterior side of the lock.
4. A multipoint lock according to claim 3 in which the night latch can only be moved to its overlocking position when the head and sill bolts are in their locking position.
5. A multipoint lock for a side hung door comprising a casing made up of a pair of spacing side plates and a face plate, and a lock mechanism located between the side plates, said mechanism including a spring loaded latch and a deadbolt, both slidable between extended locking and retracted unlocked positions in apertures in the face plate, and means to move a head bolt and a sill bolt between locking and unlocked positions in a direction normal to the direction of movement of the deadbolt, a drive hub actuated by an external handle operated spindle for moving the latch to its unlocked positiOns, the lock incorporating a night latch to overlock the deadbolt when in its locking position so as to prevent operation of the locking cylinder from an exterior face of the lock to move the deadbolt to its unlocked position, the night latch being operable only when the head and sill bolts are in their locking position.
6. A multipoint lock for a side hung door comprising a casing made up of a pair of spaced side plates and a face plate, and a lock mechanism located between the side plates, said mechanism including a spring loaded latch and a deadbolt, both slidable between extended locking and retracted unlocked positions in apertures in the face plate, and means to move a head bolt and a sill bolt between locking and unlocked positions in a direction normal to the direction of movement of the deadbolt, a drive hub actuated by an external handle operated spindle for moving the latch to its unlocked position, the lock incorporating a night latch to overlock the deadbolt when in its locking position so as to prevent operation of the locking cylinder from an exterior face of the lock to move the deadbolt to its unlocked positions, the night latch also being effective to overlock the head and sill bolts.
7. A multipoint lock according to any one of claims 1-6 in which the drive hub is rotatable by the exterior handle operated spindle in one sense to move the spring loaded latch from its locking position to its unlocked position, and if the head and sill bolts are already in their locking position, to move them to their unlocked position, and movable in an opposite sense to operate the means to move the head and sill bolts to their locking position.
8. A multipoint lock according to any one of claims 1-7 in which the means to move the head and sill bolts between their locking and unlocked position comprise a drive plate rotatably supported about the same axis as that about which the drive hub can rotate, but rotatable relative thereto, the drive plate being connected by means of a pin and slot arrangement to a sill bolt drive plate slidably mounted between the side plates for movement normal to the direction of movement of the deadbolt, the drive plate having a drive pin thereon engageable by first and second projecting lugs on the drive hub, there also being a connecting pin on the drive plate engageable in a slot in a follower plate also supported for rocking movement between the side plates so that rocking movement of the drive plate in one sense will cause rocking movement of the follower plate in the opposite sense, and a drive pin on the follower plate pivotally connected to a head bolt drive plate, slidably mounted between the side plates for movement in a direction normal to the direction of movement of the deadbolt, the first lug having two operating faces, one of which engages a projection on the rear end of the latch to move the latch to its unlocked position when the drive hub is rotated in said one sense and the other of which engages the drive pin to move the head and sill bolts to their locking position when the drive hub is rotated in the opposite sense, there also being a second lug on the drive hub engageable with the drive pin on the drive plate to move the head and
sill bolts to their unlocked position from their locking position when the drive hub is rotated in said one sense to move the latch to its unlocked position.
9. A multipoint lock according to claim 8 in which there are a pair of drive plates and follower plates spaced apart by suitable spacers and the drive
hub is located between the two drive plates.
10. A multipoint lock according to any one of the preceding claims in which the deadbolt is of
laminated construction with one or more sheets of vandal proof ceramic material located between two sheets of steel at the leading edge of the deadbolt, there being a cylinder latch plate
located between the two sheets of steel at the rear end of the deadbolt, the cylinder latch plate being slidable between the two sheets of steel in a direction at right angles to the direction of
movement of the deadbolt against the bias of a spring, there being a deadbolt latch pin supported on the cylinder latch plate and movable in an
inverted U-shaped slot in one of the lockside plates by operation of the locking cylinder, the arrangement being such that when the deadbolt
latch pin is located in the rearmost arm of the inverted U-shaped slot, the deadbolt is
maintained in its unlocked position and when the deadlock latch pin is located in the foremost arm of the said slot, the deadbolt is held in its locking position.
11. A multipoint lock according to claim 10 in which the locking cylinder has a lock barrel with a lifting cam thereon, operation of the cylinder to move the deadbolt to its locking position causing the lifting cam first to lift the cylinder latch plate from a position of rest against its spring bias so as to move the deadbolt latch pin out of the
rearmost arm of the inverted U-shaped slot, whereupon continued rotation of the lock barrel will move the lifting cam into engagement with a drive surface on the deadbolt so as to move the deadbolt together with the cylinder latch plate and the deadbolt latch pin to a locking position and causing the deadbolt latch pin to move along the base of the slot and then to move, under the bias of the spring, down into the foremost arm of the slot so as firmly to lock the deadbolt in its locking position with the cylinder latch plate returned to its position of rest.
12. A multipoint lock according to claim 8 or 9, or claim 10 or 11 when dependent on claim 8 or 9, in which a spring biased locking finger is associated with the deadbolt, the locking finger being pivotally supported on the drive pin on the follower plate and being associated with the night
latch mechanism.
1 3. A multipoint lock according to claim
12 when dependent on claim 5 or 6, or on claim
3 or 4, in which when the deadbolt is in its
locking position, and the head and sill bolt
have been moved to their locking position
the locking finger will move under the influence of its spring bias to a position in which a step therein overlies a guide pin movable with the dead bolt and wherein a tail portion of the locking finger lies behind said guide pin, whereupon the night latch may be moved from its inoperative position to an operative position to engage behind the locking finger and prevent it swinging against its spring bias to its inoperative position thus preventing movement of the guide pin on the deadbolt, and hence the deadbolt itself to its unlocked position by operation of the locking cylinder until the night latch is moved back to its inoperative position.
14. A multipoint lock according to claim 8 or 9 when dependent on any one of claims 3-6 in which the night latch is supported for rocking movement about the same axis as the axis about which the or each follower plate may swing.
1 5. A multipoint lock according to claim 13 when dependent on claim 11 wherein the cylinder latch plate has an inclined camming surface on its rear end movable into engagement with the tail portion of the locking finger when the locking cylinder is operated to release the deadboit from its deadlock position and move it to its unlocked position, said inclined camming surface moving upwardly into engagement with the tail portion when the cylinder latch plate is lifted by the lifting cam on the lock barrel so as to lift the locking finger out of the path of the deadbolt guide pin, provided said night latch has been moved to its inoperative position.
1 6. A multipoint lock according to any one of the preceding claims in which the locking cylinder is also used to move the latch from its locked position.
1 7. A multipoint lock according to claim 16 in which, when it is desired to gain entry through the door from the exterior side of the lock, the locking cylinder is first operated to move the deadbolt to its unlocked position, and if there is no exterior handle a further rotation of the locking cylinder will retract the latch from its locking position to its unlocked position.
1 8. A multipoint lock according to claim 17 when dependent on claim 11, in which a latch push rod is supported between the steel plates of the deadbolt at a central location, this latch push rod being movable into the path of the lifting cam on the lock barrel when the deadbolt is moved to its unlocked position, whereupon further rotation of the lock barrel will move the lifting cam into engagement with the free end of the latch push rod so as to lift the latch push rod into engagement with a lower end of a latch drive plate slidably mounted between the side plates of the lock, said latch drive plate being pivotally connected at its opposite end to one arm of a latch bellcrank lever pivotally supported between the side plates, the other end of which is engageable with a pin on the latch so that lifting movement of the latch drive plate causes the latch bellcrank to engage said pin and move said latch to its unlocking position.
1 9. A multipoint lock substantially as hereinbefore described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8212042A GB2122244B (en) | 1982-04-26 | 1982-04-26 | Multipoint side hung door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8212042A GB2122244B (en) | 1982-04-26 | 1982-04-26 | Multipoint side hung door lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2122244A true GB2122244A (en) | 1984-01-11 |
| GB2122244B GB2122244B (en) | 1985-08-14 |
Family
ID=10529958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8212042A Expired GB2122244B (en) | 1982-04-26 | 1982-04-26 | Multipoint side hung door lock |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2122244B (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2167112A (en) * | 1984-11-15 | 1986-05-21 | Monarch Aluminium | Latching and locking mechanisms for doors |
| GB2218728A (en) * | 1988-05-18 | 1989-11-22 | Goodwin W J & Son Ltd | Improvements in or relating to locking mechanisms |
| US5373716A (en) * | 1992-10-16 | 1994-12-20 | W&F Manufacturing, Inc. | Multipoint lock assembly for a swinging door |
| US5782114A (en) * | 1995-01-13 | 1998-07-21 | Hoppe Ag | Multi-point locking system |
| EP0860569A2 (en) * | 1997-02-25 | 1998-08-26 | Gretsch-Unitas GmbH Baubeschläge | Mortise lock |
| US6109666A (en) * | 1998-09-23 | 2000-08-29 | Ferco International, Ferrures Et Serrures De Batiment Sa | Espagnolette or espagnolette-lock for a door, French window or the like |
| US6257030B1 (en) * | 1999-06-09 | 2001-07-10 | Therma-Tru Corporation | Thumb-operated multilatch door lock |
| US6526787B2 (en) * | 2001-04-09 | 2003-03-04 | Summit Automation Co. Ltd. | Door lock device provided with means to drive coaxially lock bolt and lock tongue |
| GB2459493A (en) * | 2008-04-24 | 2009-10-28 | Strand Hardware Ltd | A multi-point panic or emergency exit mechanism |
| US8550506B2 (en) | 2009-06-30 | 2013-10-08 | Truth Hardware Corporation | Multi-point mortise lock mechanism for swinging door |
| US9428937B2 (en) | 2011-07-22 | 2016-08-30 | Amesbury Group, Inc. | Multi-point lock having sequentially-actuated locking elements |
| US9637957B2 (en) | 2012-11-06 | 2017-05-02 | Amesbury Group, Inc. | Automatically-extending remote door lock bolts |
| US9758997B2 (en) | 2008-12-19 | 2017-09-12 | Amesbury Group, Inc. | High security lock for door |
| US9765550B2 (en) | 2012-08-31 | 2017-09-19 | Amesbury Group, Inc. | Passive door lock mechanisms |
| US9790716B2 (en) | 2014-10-16 | 2017-10-17 | Amesbury Group, Inc. | Opposed hook sliding door lock |
| US9885200B2 (en) | 2012-06-18 | 2018-02-06 | Amesbury Group, Inc. | Handle-actuated sliding door lock actuation assemblies |
| US10662675B2 (en) | 2017-04-18 | 2020-05-26 | Amesbury Group, Inc. | Modular electronic deadbolt systems |
| US10808424B2 (en) | 2017-05-01 | 2020-10-20 | Amesbury Group, Inc. | Modular multi-point lock |
| US10968661B2 (en) | 2016-08-17 | 2021-04-06 | Amesbury Group, Inc. | Locking system having an electronic deadbolt |
| US11066850B2 (en) | 2017-07-25 | 2021-07-20 | Amesbury Group, Inc | Access handle for sliding doors |
| US11441333B2 (en) | 2018-03-12 | 2022-09-13 | Amesbury Group, Inc. | Electronic deadbolt systems |
| US11661771B2 (en) | 2018-11-13 | 2023-05-30 | Amesbury Group, Inc. | Electronic drive for door locks |
| US11834866B2 (en) | 2018-11-06 | 2023-12-05 | Amesbury Group, Inc. | Flexible coupling for electronic deadbolt systems |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8939474B2 (en) | 2011-06-03 | 2015-01-27 | Amesbury Group, Inc. | Lock with sliding locking elements |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB430972A (en) * | 1935-03-15 | 1935-06-27 | Joseph Kaye & Sons Ltd | Improvements in and relating to door lock mechanism |
-
1982
- 1982-04-26 GB GB8212042A patent/GB2122244B/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB430972A (en) * | 1935-03-15 | 1935-06-27 | Joseph Kaye & Sons Ltd | Improvements in and relating to door lock mechanism |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2167112A (en) * | 1984-11-15 | 1986-05-21 | Monarch Aluminium | Latching and locking mechanisms for doors |
| GB2218728A (en) * | 1988-05-18 | 1989-11-22 | Goodwin W J & Son Ltd | Improvements in or relating to locking mechanisms |
| US5373716A (en) * | 1992-10-16 | 1994-12-20 | W&F Manufacturing, Inc. | Multipoint lock assembly for a swinging door |
| US5782114A (en) * | 1995-01-13 | 1998-07-21 | Hoppe Ag | Multi-point locking system |
| EP0860569A2 (en) * | 1997-02-25 | 1998-08-26 | Gretsch-Unitas GmbH Baubeschläge | Mortise lock |
| EP0860569A3 (en) * | 1997-02-25 | 1999-07-14 | Gretsch-Unitas GmbH Baubeschläge | Mortise lock |
| US6109666A (en) * | 1998-09-23 | 2000-08-29 | Ferco International, Ferrures Et Serrures De Batiment Sa | Espagnolette or espagnolette-lock for a door, French window or the like |
| US6257030B1 (en) * | 1999-06-09 | 2001-07-10 | Therma-Tru Corporation | Thumb-operated multilatch door lock |
| US6526787B2 (en) * | 2001-04-09 | 2003-03-04 | Summit Automation Co. Ltd. | Door lock device provided with means to drive coaxially lock bolt and lock tongue |
| GB2459493A (en) * | 2008-04-24 | 2009-10-28 | Strand Hardware Ltd | A multi-point panic or emergency exit mechanism |
| US9758997B2 (en) | 2008-12-19 | 2017-09-12 | Amesbury Group, Inc. | High security lock for door |
| US9593516B2 (en) | 2009-06-30 | 2017-03-14 | Truth Hardware Corporation | Multi-point mortise lock mechanism for swinging door |
| US8550506B2 (en) | 2009-06-30 | 2013-10-08 | Truth Hardware Corporation | Multi-point mortise lock mechanism for swinging door |
| US9428937B2 (en) | 2011-07-22 | 2016-08-30 | Amesbury Group, Inc. | Multi-point lock having sequentially-actuated locking elements |
| US9885200B2 (en) | 2012-06-18 | 2018-02-06 | Amesbury Group, Inc. | Handle-actuated sliding door lock actuation assemblies |
| US9765550B2 (en) | 2012-08-31 | 2017-09-19 | Amesbury Group, Inc. | Passive door lock mechanisms |
| US9637957B2 (en) | 2012-11-06 | 2017-05-02 | Amesbury Group, Inc. | Automatically-extending remote door lock bolts |
| US9790716B2 (en) | 2014-10-16 | 2017-10-17 | Amesbury Group, Inc. | Opposed hook sliding door lock |
| US10968661B2 (en) | 2016-08-17 | 2021-04-06 | Amesbury Group, Inc. | Locking system having an electronic deadbolt |
| US10662675B2 (en) | 2017-04-18 | 2020-05-26 | Amesbury Group, Inc. | Modular electronic deadbolt systems |
| US11634931B2 (en) | 2017-04-18 | 2023-04-25 | Amesbury Group, Inc. | Modular electronic deadbolt systems |
| US10808424B2 (en) | 2017-05-01 | 2020-10-20 | Amesbury Group, Inc. | Modular multi-point lock |
| US11066850B2 (en) | 2017-07-25 | 2021-07-20 | Amesbury Group, Inc | Access handle for sliding doors |
| US11441333B2 (en) | 2018-03-12 | 2022-09-13 | Amesbury Group, Inc. | Electronic deadbolt systems |
| US11834866B2 (en) | 2018-11-06 | 2023-12-05 | Amesbury Group, Inc. | Flexible coupling for electronic deadbolt systems |
| US11661771B2 (en) | 2018-11-13 | 2023-05-30 | Amesbury Group, Inc. | Electronic drive for door locks |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2122244B (en) | 1985-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |