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1. WO2000019049 - SAFETY LATCH

Publication Number WO/2000/019049
Publication Date 06.04.2000
International Application No. PCT/US1999/022273
International Filing Date 27.09.1999
Chapter 2 Demand Filed 11.04.2000
IPC
E05B 15/00 2006.1
EFIXED CONSTRUCTIONS
05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
15Other details of locks; Parts for engagement by bolts of fastening devices
E05B 17/20 2006.1
EFIXED CONSTRUCTIONS
05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
17Accessories in connection with locks
20Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
CPC
E05B 15/004
EFIXED CONSTRUCTIONS
05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
15Other details of locks; Parts for engagement by bolts of fastening devices
004Lost motion connections
E05B 17/2084
EFIXED CONSTRUCTIONS
05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
17Accessories in connection with locks
20Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
2084Means to prevent forced opening by attack, tampering or jimmying
Y10S 292/41
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
292Closure fasteners
41Door latch separation prevention
Y10T 292/0975
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
292Closure fasteners
08Bolts
096Sliding
0969Spring projected
097Operating means
0975Link and push or pull rod
Y10T 292/0995
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
292Closure fasteners
08Bolts
096Sliding
0969Spring projected
097Operating means
0995Push or pull rod
Applicants
  • DOLLMAN TECHNICAL SERVICES, INC. [US]/[US]
Inventors
  • DOLLMAN, James, M.
  • DOLLMAN, Joseph, A.
Agents
  • OLIFF, James, A.
Priority Data
09/161,50728.09.1998US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SAFETY LATCH
(FR) VERROU DE SECURITE
Abstract
(EN) A safety latch (10) for securing doors, windows and the like includes a plunger (11) slidably received within a housing (13) and movable between extended and retracted positions. A first end of the plunger (11a) is freely available for engagement with a hole, recess, strikeplate, or the like externally of the housing, and a second end of the plunger (11b) within the housing includes a cam member (14). A retracting member (29) is interconnected with the plunger through the use of an intermediate member (16) located between and connected at its opposite ends to the plunger and the retracting member. Either a first end of the intermediate member or the retracting member includes a cam follower (21) engageable with the cam member included on the plunger. When a force is applied to the retracting member to pull the plunger into the housing from the extended position toward the retracted position, the plunger is freely movable within the housing to the retracted position. However, when a force is applied in an attempt to push the plunger into the housing from the extended position toward the retracted position, the cam member acts against the cam follower to cause a locking member (22) on the intermediate member to engage with an opening (23) in the housing to prevent movement of the plunger to the retracted position.
(FR) L'invention porte sur un verrou (10) de sécurité pour portes, fenêtres et analogues, qui comprend un poussoir (11) coulissant à l'intérieur d'un boîtier (13) et pouvant être déplacé entre une position sortie et une position rentrée. Une première extrémité du poussoir (11a) est découverte de façon à s'engager dans un orifice, un évidement, une vertenelle ou analogue à l'extérieur du boîtier, et une deuxième extrémité du poussoir (11b) logée dans le boîtier inclut un élément à came (14). Un élément escamotable (29) est connecté au poussoir par un élément intermédiaire (16) situé entre le poussoir et l'élément escamotable auxquels il est relié par ses extrémités opposées. Soit une première extrémité de l'élément intermédiaire soit l'élément escamotable inclut un galet de came (21) en prise avec l'élément à came intégré au poussoir. Lorsqu'une force est appliquée sur l'élément escamotable pour tirer le poussoir à l'intérieur du boîtier de la position sortie vers la position rentrée, le poussoir peut être déplacé librement à l'intérieur du boîtier vers la position rentrée. Toutefois, lorsqu'une force est appliquée dans le but de pousser le poussoir à l'intérieur du boîtier de la position sortie vers la position rentrée, l'élément à came oppose une force contraire au galet de came pour amener un élément de verrouillage (22) placé sur l'élément intermédiaire à s'engager dans un orifice (23) du boîtier pour empêcher le déplacement du poussoir vers la position rentrée.
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