EP0011424A1 - Serrures - Google Patents

Serrures Download PDF

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Publication number
EP0011424A1
EP0011424A1 EP79302431A EP79302431A EP0011424A1 EP 0011424 A1 EP0011424 A1 EP 0011424A1 EP 79302431 A EP79302431 A EP 79302431A EP 79302431 A EP79302431 A EP 79302431A EP 0011424 A1 EP0011424 A1 EP 0011424A1
Authority
EP
European Patent Office
Prior art keywords
bolt
runner
lock
movement
slot
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.)
Granted
Application number
EP79302431A
Other languages
German (de)
English (en)
Other versions
EP0011424B1 (fr
Inventor
George William Dyson
Kenneth Edwin Taylor
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.)
Gunnebo UK Ltd
Original Assignee
Chubb and Sons Lock and Safe Co 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 Chubb and Sons Lock and Safe Co Ltd filed Critical Chubb and Sons Lock and Safe Co Ltd
Publication of EP0011424A1 publication Critical patent/EP0011424A1/fr
Application granted granted Critical
Publication of EP0011424B1 publication Critical patent/EP0011424B1/fr
Expired legal-status Critical Current

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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
    • E05B63/0017—Locks with sliding bolt without provision for latching

Definitions

  • This invention relates to locks of the kind in which linear movement of a slide or runner that is coupled to the bolt of the lock is communicated via the coupling to extend or withdraw the bolt according to the direction of runner movement.
  • Locks of the above kind in which the runner is mounted to slide parallel to the path of the bolt are known. Such locks are commonly key operated, necessitating the insertion and turning of a correct key within the lock to bring about the movement of the runner required to extend or withdraw the bolt.
  • the runner normally engages with a tail extending from the head of the bolt so as to draw the bolt along with the runner as the runner moves along its linear path, the bolt being thereby extended or withdrawn according to the sense in which the key is turned.
  • a lock in which linear movement of a slide or runner that is coupled to the bolt of the lock is communicated via the coupling to extend or withdraw the bolt according to the direction of runner movement is characterised in that the line of movement of the runner is transverse to that of the bolt.
  • the line of movement of the runner is preferably at right angles to that of the bolt.
  • a part carried with the runner is moved into the withdrawal-path of the bolt under movement of the runner in the direction for extending the bolt, so as to block withdrawal of the bolt while it is extended and until the runner is first moved in the opposite, withdrawal direction; this is of especial advantage for deadlocking the bolt and securing it against forcing.
  • Coupling between the runner and bolt may provide for lost motion between them such that movement of the runner in the direction for withdrawal of the bolt is communicated to the bolt only after the runner has moved sufficiently to clear the said part from the withdrawal-path of the bolt.
  • Such coupling furthermore, may enable the final movement of the runner which while the bolt is fully extended, is required to locate said part in its bolt-locking position.
  • the runner and bolt may be coupled together through a bell-crank, and this readily enables the bolt movement to be effected with magnification from the runner movement. Where lost motion as referred to in the preceding paragraph is to be provided, then this may conveniently be provided simply by appropriate configuration of a slot or groove in which the bell-crank engages with the bolt.
  • the locking bolt 1 when fully extended to its outward, locked position (shown in Figures 1, 3 and 4) protrudes from the Jock casing 2 through a rectangular aperture 3 in the forend 4 of the lock.
  • a peg 5 carried on the bolt 1 within the casing 2 engages in an elongate recess 6 ( Figure 2) in the cover-plate 7 of the casing 2 for guiding, and also possibly limiting, sliding back and forth through the aperture 3 in withdrawal and extension of the bolt 1. Movements of the bolt 1 are effected by an appropriately-stepped key (not shown) inserted into a key-hole 8 that is open from both sides of the lock through the cover-plate 7 and casing 2 respectively.
  • the inserted key engages a thrower rib 9 ( Figure 5) on the underside of a barrel-and-curtain element 10.
  • a leaf spring 11 engages a notch 12 of element 10 to detain the rib 9 normally aligned with the key-hole 8.
  • the stump 18 when so detained precludes movement of the runner 17 until the levers 13 are lifted appropriately against the action of their springs 14, by the turning key.
  • the key-bit is appropriately stepped, at least one of the levers 13 will not be lifted the individually-required amount to bring its gating aperture 21 (inter-connecting the slots 19 and 20) into alignment with the stump 18, and movement of the runner 17 will accordingly continue to be precluded.
  • all levers 13 are lifted just enough to align their gating apertures 21 with the stump 18 so as to free the runner 17 for sliding longitudinally.
  • Such sliding takes place under the influence of the thrower-rib 9 as this is turned by the key against a talon 22 (identified in Figure 4) formed in the runner 17.
  • the sliding movement of the runner 17 is communicated to the bolt 1 so as to withdraw or extend it in dependence upon the direction in which the key is turned.
  • the bolt 1 is withdrawn from its outward, locked position by turning the key in the clockwise sense with respect to Figure 1.
  • the action of the thrower-rib 9 on the talon 22 in this case slides the runner 17 in the direction to move the stump 18 out of the slot 19 into the slot 20 through the gating aperture 21 of each lifted lever 13.
  • Continued turning of the key to return the rib 9 to alignment with the key-hole 8 and allow withdrawal of the key releases the levers 13 causing them to spring back to detain the stump 18 in the racking slots 20 and so restrain return movement of the runner 17.
  • Return movement of the runner 17 required to extend the bolt 1 to its outward, locked position is achieved by turning the key in the opposite, anti-clockwise sense. This lifts levers 13 and again enables the stump 18 to pass through the gating aperture 21 of each lever 13 - in this case from the slot 20 back into the slot 19 - to restore the lock to the condition illustrated in Figure 1.
  • the stack of levers 13 is located to one side of the key-hole 8 so that the runner 17 slides upwardly when the correct key is turned clockwise and downwardly when the key is turned anti-clockwise.
  • the upward-downward sliding movement of the runner 17 is communicated to the bolt 1 via a bell-crank element 23 that is pivotted by a pin 24 which engages a hole 25 (Figure 2) in the cover-plate 7, and which extends via a slot 26 in the runner 17 to engage a corresponding hole 27 ( Figure 3) in the casing 2.
  • the slot 31 is of a dog-leg configuration having a first portion 32 formed as an arc of constant radius centred on the pivot-pin 24 to provide for lost motion between the runner 17 and bolt 1, and a second portion 33 parallel to the line of movement of the runner 17, to draw the bolt 1 back and forth during upward and downward movement respectively, of the runner 17.
  • the path of movement of the runner 17 is constrained to a line at right angles to that of the bolt 1, generally by the slots 16 and 26 running on the pins 15 and 24, but principally by a peg 34 (identified in Figure 1).
  • the peg 34 is carried by a lath-part 35 of the runner 17 that is partially overlapped by the bolt 1 and runs within a slot 36 in the casing 2. Sliding movement of the bolt 1 across the lath-part 35 is blocked, thereby deadlocking the bolt 1, when the lock is in the locked condition.
  • the lath-part 35 turns up at its end to form a shoulder 37 that runs along the rear wall 38 of the casing 2 (thereby aiding the peg 34 in guiding the runner 17) and projects into the plane of bolt-movement.
  • the shoulder 37 lies in the withdrawal-path of the extended bolt 1 - as illustrated in Figures 1 and 4 - to lie immediately behind the bolt 1 and in abutment with the wall 38, so as to obstruct withdrawal movement of the bolt 1 until the runner 17 has been moved upwardly a small distance by clockwise turning of the correct key in the lock.
  • the deadlocking of the bolt 1 is especially secure in that it is provided by direct abutment of the bolt 1 upon the runner 17 as supported against the rear wall 38 of the casing 2. There is accordingly a very positive and solid block against forcing of the bolt 1, and this is entirely independent of operational items of necessarily-limited strength, such as the stump 18, the levers 13 and the pivot pin 15. Moreover, the portion 32 of the dog-leg slot 31 is configured to ensure that forcing of the bolt 1 does not act on the peg 29. In this respect, and as illustrated by Figure 8, the lower end of the portion 32 where the peg 29 is located while the bolt 1 is deadlocked, is enlarged slightly towards the forend of the lock to form a relief part 39.
  • the relief part 39 is of limited extent being in particular restricted to the lower end of the portion 32, so that the bolt 1 is not free to obstruct entry of the shoulder 37 behind it during the final phase of anti-clockwise rotation of the key while the deadlocked condition is being established.
  • lock mechanism described above has the added advantage that for any particular bolt-throw, it can in general be accommodated within a smaller depth than achievable using conventional constructions. This is especially noteworthy where the lock is for fitting to a door having a narrow stile.
  • the depth from the outer of the forend to the rear wall of the casing is some 55 mm, accommodating a bolt of some 50 mm in overall length for a throw of some 20 mm.
  • the same could be realised with a casing-depth of only 50 mm if turning of the key through 180° rather than the full 360° were acceptable.
  • the throw of the bolt is different from the displacement of the runner. More particularly, the intercoupling of the runner 17 with the bolt 1 provided by the bell-crank element 23 in the above example, enables.the throw of the bolt 1 to be significantly larger than the displacement of the runner 17 effected by the key. With the example of lock construction as referred to above having a bolt-throw of some 20 mm, the displacement of the runner 17 to produce this throw is only some 14 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Lock And Its Accessories (AREA)
EP79302431A 1978-11-06 1979-11-02 Serrures Expired EP0011424B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4333778 1978-11-06
GB7843337 1978-11-06

Publications (2)

Publication Number Publication Date
EP0011424A1 true EP0011424A1 (fr) 1980-05-28
EP0011424B1 EP0011424B1 (fr) 1983-05-04

Family

ID=10500833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79302431A Expired EP0011424B1 (fr) 1978-11-06 1979-11-02 Serrures

Country Status (5)

Country Link
EP (1) EP0011424B1 (fr)
AU (1) AU529533B2 (fr)
DE (1) DE2965323D1 (fr)
NZ (1) NZ191919A (fr)
ZA (1) ZA795692B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU578645B2 (en) * 1983-12-29 1988-11-03 Firmagroup Australia Pty. Ltd. Lock

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1553441B (de) * D. La Porte Söhne, 5600 Wuppertal-B armen Antriebseinrichtung in einem Schloß für Hochschränke mit Treibriegelverschluß
FR1573025A (fr) * 1968-01-29 1969-05-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1553441B (de) * D. La Porte Söhne, 5600 Wuppertal-B armen Antriebseinrichtung in einem Schloß für Hochschränke mit Treibriegelverschluß
FR1573025A (fr) * 1968-01-29 1969-05-27

Also Published As

Publication number Publication date
AU529533B2 (en) 1983-06-09
AU5232979A (en) 1980-05-15
EP0011424B1 (fr) 1983-05-04
ZA795692B (en) 1980-10-29
DE2965323D1 (en) 1983-06-09
NZ191919A (en) 1983-07-15

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