WO2006114660A1 - Serrure a mortaise equipee d'un pene demi-tour reversible - Google Patents

Serrure a mortaise equipee d'un pene demi-tour reversible Download PDF

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Publication number
WO2006114660A1
WO2006114660A1 PCT/IB2005/002790 IB2005002790W WO2006114660A1 WO 2006114660 A1 WO2006114660 A1 WO 2006114660A1 IB 2005002790 W IB2005002790 W IB 2005002790W WO 2006114660 A1 WO2006114660 A1 WO 2006114660A1
Authority
WO
WIPO (PCT)
Prior art keywords
head
latch bolt
mortise lock
spring
pin
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.)
Ceased
Application number
PCT/IB2005/002790
Other languages
English (en)
Inventor
Dean David Hutcheson-Clelland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Assa Abloy SA Pty Ltd
Original Assignee
Assa Abloy SA Pty Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Assa Abloy SA Pty Ltd filed Critical Assa Abloy SA Pty Ltd
Publication of WO2006114660A1 publication Critical patent/WO2006114660A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/04—Locks or fastenings with special structural characteristics for alternative use on the right-hand or left-hand side of wings
    • E05B63/044—Locks or fastenings with special structural characteristics for alternative use on the right-hand or left-hand side of wings with reversible bolt or bolt head

Definitions

  • THIS invention relates to a mortise lock with a reversible latch bolt.
  • the latch bolt head of a mortise lock has a chamfered surface which cooperates, on closure of a door to which the mortise lock is fitted, with a striker plate mounted on the door frame. This presses the bolt head to retract into the casing of the mortise lock.
  • an internal spring urges the bolt head out of the casing and into the opening and an aligned opening in the door frame.
  • the latch bolt head is chamfered on one side and so is suitable for either left-hand or right hand operation only. It is possible to open the lock casing in order to reverse the bolt head for operation in a door of opposite hand, but this is a time-consuming and intricate procedure.
  • a mortise lock having a casing, a latch bolt having a head and a latch bolt spring urging the head to project outwardly through an opening in the casing, the head having respective outer and inner parts and a head spring which draws the parts into engagement with one another, the outer part being disengagable from the inner part against the action of the head spring and then rotatable to a reversed position relative to the inner part.
  • the parts are preferably shaped to make non-rotatable engagement with one another when drawn together by the head spring.
  • one part may include a projection, typically a rib, which is received non-rotatably in a recess, typically a groove, in the other part when the parts are drawn together by the head spring.
  • the mortise lock includes a pin having inner and outer ends, the outer end being connected to the outer part of the latch bolt head with the pin extending rotatably through a passage in the inner part of the latch bolt head, whereby the outer part can rotate relative to the inner part about the axis of the pin.
  • the pin has an enlarged head at its inner end and the head spring is located about the pin and acts between the enlarged head and a shoulder in the passage in the inner part of the latch bolt head, thereby drawing the outer and inner parts together.
  • This allows the outer part of the latch bolt head to be disengaged from the inner part thereof by moving the outer part relative to the inner part along the axis of the pin, thereby compressing the head spring.
  • Figure 1 shows an elevation view illustrating the internal components of a mortise lock according to the invention
  • Figure 2 shows a perspective view of the mortise lock with the latch bolt head set at an orientation for right hand closure
  • Figure 3 shows a perspective view of the mortise lock with the latch bolt head set at an orientation for left hand closure
  • Figure 4 shows a perspective view of the mortise lock with the latch bolt head at an intermediate orientation between the right and left hand settings
  • Figure 5 shows an exploded perspective view of the latch bolt head and associated components
  • Figure 6 shows a perspective view of the assembled latch bolt head
  • Figure 7 shows a cross-sectional view at the line 7-7 in Figure 6.
  • the mortise lock 10 seen in Figures 1 to 4 has a casing 12 including casing parts 12.1 and a front plate 14. Only a rear one of the casing parts 12.1 is shown in the Figures, the other casing part having been removed to allow the interior components to be seen. Located within the casing 12 is a lever-type key-operated dead bolt mechanism 16. This is entirely conventional and will be familiar to persons skilled in the art.
  • a latch bolt mechanism 18 This includes a latch bolt head 20, a latch bolt tail 22 of bifurcated form and a latch bolt spring 24.
  • the head 20 is attached to a front end of the tail 22, which includes spaced apart, rearwardly extending legs 22.1 and a rearwardly extending projection 22.2 between the legs.
  • the spring 24 is located over the projection 22.2 and acts in compression against a transverse member 26 in the casing. The spring 24 urges the latch bolt head structure, to the left in Figure 1 , so that it projects outwardly through an opening 30 in the front plate 14.
  • the latch bolt mechanism 18 also includes a rotary member 32 which is in use acted upon, via a square section spindle (not shown) passing through an opening 34 in the member, by the handle (not shown) of a door to which the lock 10 is fitted.
  • a projection 32.1 on the member causes a follower 38 to move in the direction of the arrow 40 against the action of a spring 41.
  • the follower has a cranked end 37 which acts on a lug 39 on the tail 22, with the result that the tail 22 is pulled in the same direction 40, thereby withdrawing the latch bolt head 20 into the casing.
  • the mortise lock 10 is largely conventional and those skilled in the art will be familiar with the general structure and operation of such locks.
  • the latch bolt head 20 and tail 22 are not conventional. Whereas a conventional mortise lock has a latch bolt head which is of one-piece construction, the illustrated latch bolt head includes an outer part 20.1 and an inner part 20.2. A passage 39 ( Figure 5) extends through the inner part 20.2 and aligns with a blind socket 42 in the outer part 20.1. The rear end of the outer part 20.1 is formed with a transverse groove 44. The front end of the inner part 20.2 carries a transverse projection in the form of a rib 46 and the rear end of this part is formed with a transverse slot 50.
  • the latch bolt head structure also includes a pin 52 having an enlarged head 54 which locates between forwardly extending arms 56 of the tail 22.
  • a forward end of the pin 52 is formed with a transverse through hole 58.
  • a head spring 60 is located on the pin 52.
  • the pin 52 passes through the passage 39 and its outer end locates in the socket 42 with the hole 58 aligned with an intersecting through bore 62 in the outer part 20.1.
  • a transverse roll pin 64 passes through the bore 62 and the hole 58 to lock the end of the pin relative to the part 20.1.
  • the through hole 58 is replaced by an annular groove near the end of the pin 52, and the bore 62 is laterally displaced so as to align with the groove when the end of the pin is located in the socket 42.
  • the roll pin 64 passes through the bore 62 and locates in the groove to lock the pin relative to the part 20.1.
  • the arms 56 of the tail 22 are inserted into the slot 50 such that holes 64 at the outer ends of the arms align with through bores 66 in the inner part 20.2. Further roll pins 68 are inserted into the bores 66 and holes 64 to lock the tail relative to the part 20.2.
  • the head spring is located between the head 54 of the pin 52 and an internal shoulder 69 in the passage 39 in the inner part 20.2.
  • the head spring 60 draws the outer and inner parts 20.1 and 20.2 together such that the rib 46 locates in the groove 44 and prevents rotation of the parts 20.1 and 20.2 relative to one another.
  • Figure 2 shows the mortise lock 10 with the head 20 set up for a right hand door or other closure. This is illustrated by the fact that the conventional chamfered face 70 is arranged to cooperate with a striker plate (not shown), when the door is swung in the direction 72, such that the striker plate presses the head into the casing against the action of the spring 24.
  • a striker plate not shown
  • Figure 3 shows the same mortise lock 10 with the head 20 set for left hand operation, as illustrated by the fact that the face 70 is arranged to cooperate with a striker plate, to achieve the same motion of the head, when the door is swung in the opposite direction 74.
  • the invention as exemplified above has the major advantage that there is no requirement for a separate tool to achieve reversal of the latch bolt head. It is also believed that the reversal procedure can be carried out more quickly and simply with the mortise lock 10 described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

Cette invention concerne une serrure à mortaise (10) équipée d'un pêne demi-tour (20) présentant une tête et un ressort de pêne demi-tour (24) qui sollicite la tête en saillie vers l'extérieur à travers une ouverture (30) ménagée dans le boîtier de la serrure. La tête présente des pièces extérieure et intérieure respectives (20.1 et 20.2) et un ressort de la tête (60) qui entraîne les pièces en prise l'une avec l'autre. La pièce extérieure (20.1) peut être dégagée de la pièce intérieure (20.2) contre l'action du ressort de la tête, et peut alors être pivotée vers une position inversée relativement à la pièce intérieure, ce qui permet d'utiliser la même serrure pour une fermeture à droite ou à gauche.
PCT/IB2005/002790 2005-04-26 2005-09-21 Serrure a mortaise equipee d'un pene demi-tour reversible Ceased WO2006114660A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200503366 2005-04-26
ZA2005/03366 2005-04-26

Publications (1)

Publication Number Publication Date
WO2006114660A1 true WO2006114660A1 (fr) 2006-11-02

Family

ID=35636718

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/002790 Ceased WO2006114660A1 (fr) 2005-04-26 2005-09-21 Serrure a mortaise equipee d'un pene demi-tour reversible

Country Status (1)

Country Link
WO (1) WO2006114660A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016062158A1 (fr) * 2014-10-23 2016-04-28 广东炬森五金精密制造有限公司 Nouvelle serrure de porte silencieuse
RU2643125C2 (ru) * 2012-04-05 2018-01-30 Гуандун Арчи Хардваре Ко., Лтд. Дверной замок
US12024919B2 (en) 2020-07-01 2024-07-02 Cmech (Guangzhou) Ltd. Latch bolt installation structure and door lock using such structure
US12523061B2 (en) 2020-07-01 2026-01-13 Cmech (Guangzhou) Ltd. Door lock with handle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE537728A (fr) *
DE400956C (de) * 1923-07-07 1924-08-23 Erdbrink & Co G M B H Links und rechts verwendbares Schloss
DE1039879B (de) * 1954-11-19 1958-09-25 Zeiss Ikon Ag Einsteckschloss
FR1454169A (fr) * 1965-11-08 1966-07-22 Deny & Co S A Pêne demi-tour réversible sans ouverture du coffre de la serrure pouvant s'adapter sur tout type de serrures
CH622310A5 (en) * 1977-10-05 1981-03-31 Glutz Ag Mortise lock for doors
GB2310685A (en) * 1996-02-27 1997-09-03 Legge N T Ltd Reversable latch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE537728A (fr) *
DE400956C (de) * 1923-07-07 1924-08-23 Erdbrink & Co G M B H Links und rechts verwendbares Schloss
DE1039879B (de) * 1954-11-19 1958-09-25 Zeiss Ikon Ag Einsteckschloss
FR1454169A (fr) * 1965-11-08 1966-07-22 Deny & Co S A Pêne demi-tour réversible sans ouverture du coffre de la serrure pouvant s'adapter sur tout type de serrures
CH622310A5 (en) * 1977-10-05 1981-03-31 Glutz Ag Mortise lock for doors
GB2310685A (en) * 1996-02-27 1997-09-03 Legge N T Ltd Reversable latch

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2643125C2 (ru) * 2012-04-05 2018-01-30 Гуандун Арчи Хардваре Ко., Лтд. Дверной замок
WO2016062158A1 (fr) * 2014-10-23 2016-04-28 广东炬森五金精密制造有限公司 Nouvelle serrure de porte silencieuse
US12024919B2 (en) 2020-07-01 2024-07-02 Cmech (Guangzhou) Ltd. Latch bolt installation structure and door lock using such structure
US12180745B2 (en) 2020-07-01 2024-12-31 Cmech (Guangzhou) Ltd. Door lock with handle
US12404697B2 (en) 2020-07-01 2025-09-02 Cmech (Guangzhou) Ltd. Latch bolt installation structure and door lock using such structure
US12523061B2 (en) 2020-07-01 2026-01-13 Cmech (Guangzhou) Ltd. Door lock with handle

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