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WO2011094655A1 - Cadenas avec caractéristiques de sécurité anti-cliquettement - Google Patents

Cadenas avec caractéristiques de sécurité anti-cliquettement Download PDF

Info

Publication number
WO2011094655A1
WO2011094655A1 PCT/US2011/023089 US2011023089W WO2011094655A1 WO 2011094655 A1 WO2011094655 A1 WO 2011094655A1 US 2011023089 W US2011023089 W US 2011023089W WO 2011094655 A1 WO2011094655 A1 WO 2011094655A1
Authority
WO
WIPO (PCT)
Prior art keywords
blocking member
shackle
lock housing
housing
protrusion
Prior art date
Application number
PCT/US2011/023089
Other languages
English (en)
Inventor
Billy B. Edwards
Glenn P. Meekma
Original Assignee
Master Lock Company Llc
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 Master Lock Company Llc filed Critical Master Lock Company Llc
Publication of WO2011094655A1 publication Critical patent/WO2011094655A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/02—Permutation or combination locks; Puzzle locks with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others
    • E05B37/025—Permutation or combination locks; Puzzle locks with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others in padlocks

Definitions

  • Padlocks are used in a variety of applications, including, for example, with enclosures such as lockers, storage sheds, and various gates and doors.
  • a typical padlock includes a lock housing having a generally U-shaped shackle extending from one end and a lock interface (e.g., a keyway or one or more combination dials) disposed on the lock housing.
  • the shackle is secured in the lock housing by one or more locking members held in locking engagement with the shackle by a blocking member.
  • the typical padlock is unlocked by proper manipulation of the lock interface (e.g., rotation of a key cylinder using an inserted authorized key, or rotation of a combination dial or dials in accordance with an authorized combination code), which moves the blocking member out of engagement with the one or more locking members.
  • This allows the one or more locking members to disengage from the shackle, thereby permitting axial movement of the shackle for separation of the shackle from the lock housing (i.e., withdrawal of at least one leg of the U-shaped shackle from the lock housing), for removal of the lock from a hasp or other such portion of a locked structure.
  • the blocking member is pivotable from the locked condition to the unlocked condition upon proper manipulation of the lock interface.
  • a pivotable blocking member may be laterally fixed or restricted at a location longitudinally aligned with a pivot point of the blocking member, such that lateral movement of the blocking member is limited without Umiting pivoting movement of the blocking member.
  • a combination padlock includes a lock housing, a shackle, and a plurality of dials.
  • a blocking member disposed within the lock housing is pivotable about a pivot point on the blocking member between a shackle securing position and a shackle releasing position.
  • Each of the plurality of dials includes an unlocking feature disposed on an outer periphery of the dial. When each of the plurality of dials is rotated to an unlocking orientation, each of the unlocking features aligns with a corresponding dial engaging portion of the blocking member, allowing the blocking member to pivot from the shackle securing position to the shackle releasing position. Engagement of the blocking member with the inner front surface of the lock housing is limited to a location longitudinally aligned with the pivot point to limit lateral movement of the blocking member without limiting pivoting movement of the blocking member.
  • Figure 1 is perspective view of a conventional multiple dial combination padlock
  • Figure 2 is a front cross-sectional view of the conventional multiple dial combination padlock of Figure 1, shown in a locked condition;
  • Figure 3 is a side cross-sectional view of the conventional multiple dial combination padlock of Figure 1, shown in an unlocked or shackle releasing condition;
  • Figure 4 is a perspective view of the blocking member of the conventional multiple dial combination padlock of Figure 1;
  • Figure 5 is a partial side cross-sectional view of a multiple dial combination padlock having a blocking member with a rap-preventing feature;
  • Figure 6 is a perspective view of the blocking member of the multiple dial combination padlock of Figure 5.
  • Figure 7 is a partial side cross-sectional view of a multiple dial combination padlock having a lock housing with a rap preventing feature.
  • each combination dial includes an unlocking feature configured to receive a portion of a blocking member when the combination dial is in an unlocking orientation.
  • the blocker When all of the combination dials are in the corresponding unlocking orientations, the blocker is movable into engagement with the unlocking portions of the dials, thereby allowing disengagement of the one or more locking members from the shackle to allow axial withdrawal of the shackle from the lock housing.
  • the lock includes a lock housing 10 that retains a shackle 11 that is unlocked by rotation of the combination dials 12 (which include numbered wheels 22 and corresponding hubs 24) on shaft 23 to their unlocking orientations.
  • a pair of oppositely disposed locking members 14 are provided which are operatively housed in an upper portion of lock housing 10.
  • the blocking member 19 shown in detail in Figure 4, includes a series of spaced-apart dial engaging fingers 37 projecting downwardly from its main intermediate portion in a direction opposite the blocking finger 18. Springs 39 are secured to the blocking member 19 to cause the blocking member to be pulled from its normal locked position of Figure 2 to its unlocked or locking member releasing position of Figure 3. The blocking member moves from the locked position to the unlocked position by rocking or pivoting on a pair of pivot protuberances 40 extending from the blocking member 19 and contactable with corresponding pivot bearing portions of the lock housing.
  • the blocking member 19 While the pivotable blocking member 19 is restricted from pivotable movement by engagement with the outer peripheries of the hubs 24, the blocking member 19 may be susceptible to lateral movement or shifting, such that the blocking finger 18 is laterally shifted out of engagement with the locking members 14.
  • This lateral shifting of the blocking member 19, in an unauthorized attempt to open the padlock may be accomplished by insertion of a lock pick or other instrument into the lock housing 10 (e.g., through one of the openings in the lock housing through which the dials 12 protrude), thereby rapping or forcing the blocking member 19 laterally outward to disengage the blocking finger 18 from the locking members 14.
  • a multiple dial combination padlock with a pivotable blocking member may be adapted to prevent lateral sliding movement of the blocking member to disengage a blocking finger from shackle engaging locking members.
  • the lock may be adapted such that the blocking member is substantially laterally restricted while being freely pivotable about pivot protrusions extending from the blocking member.
  • the blocking member may be laterally fixed to the lock housing, for example, by a pivot pin securing the blocking member to the lock housing while allowing the blocking member to pivot.
  • the blocking member may be laterally engageable with an inner surface of the lock housing at a location substantially aligned with the pivot point of the blocking member, such that lateral engagement between the lock housing and blocking member does not impede pivotable movement of the blocking member (i.e., does not produce a pivotable limit position), but substantially limits or prevents lateral shifting movement of the blocking member within the lock housing.
  • Figure 5 illustrates a side cross-sectional view of a padlock 100 adapted to prevent lateral rapping of the blocking member 119 out of engagement with the locking members 114, according to an inventive aspect of the present application.
  • Lock components not visible in the view of Figure 5 may, but need not be, comparable to, consistent with, or even substantially identical to, the corresponding components of the padlock of Figures 1-3, and may function substantially similarly to the padlock of Figures 1-3.
  • the exemplary blocking member 119 includes a stabilizing protrusion 150 extending from a housing facing surface 126 of the blocking member.
  • the stabilizing protrusion 150 is substantially aligned with one or more pivot protrusions 140 extending from an insert facing surface 127 of the blocking member 119 opposite the housing facing surface 126.
  • the blocking member 119 is free to pivot about the pivot protrusions 140 against corresponding pivot bearing surfaces 141 in a housing insert 121 within the lock housing 110 when the dials 112 and hubs 124 are rotated to their unlocking orientations.
  • the stabilizing protrusion 150 may engage the adjacent inner front surface 110' of the housing 110
  • the lock 100 may alternatively be configured to provide a small gap between the protrusion 150 and the housing inner front surface 110' to further ensure that pivotable movement of the blocking member 119 is not impeded by the protrusion 150.
  • the stabilizing protrusion 150 may be provided with a rounded end portion 151 to further facilitate pivotable movement of the blocking member 119.
  • any attempt to laterally shift the blocking member 119 to disengage the blocking finger 118 from the locking members 114 will result in the protrusion 150 abutting the housing inner front surface 110', thereby preventing further lateral movement of the blocking member 119 to retain the blocking finger 118 in blocking engagement with the locking members 114.
  • the protrusion 150 and the outermost hub engaging fingers 137 of the blocking member 119 act as three legs of a tripod to anchor the blocking member 119 against lateral movement.
  • the exemplary blocking member 119 is shown in greater detail in Figure 6. While the stabilizing protrusion 150 is shown as being integral with the blocking member 119 (e.g., as a die-cast or molded feature), the protrusion may alternatively be assembled with the blocking member. As one example (not shown), a roll pin may be press fit through a hole in the blocking member to provide the stabilizing protrusion. As another example, a machine screw, set screw, or other such fastener may be tbreadably assembled with the blocking member to provide the stabilizing protrusion.
  • a padlock may include a lock housing having an inward protrusion substantially aligned with a pivot point of the pivotable blocking member, to substantially limit or prevent lateral shifting movement of the blocking member without impeding pivotable movement of the blocking member (i.e., without producing a pivotable limit position).
  • a padlock 200 includes a lock housing 210 that includes an inward projecting stabilizing protrusion 260 (e.g., an projection, pressed pin, or threaded fastener, as shown) substantially aligned with pivot protrusions 240 of the blocking member 219.
  • an inward projecting stabilizing protrusion 260 e.g., an projection, pressed pin, or threaded fastener, as shown
  • This alignment allows the blocking member 219 is to pivot freely against corresponding pivot bearing surfaces 241 in a housing insert 221 within the lock housing 210 when the dials 212 are rotated to their unlocking orientations.
  • the stabilizing protrusion 260 may engage the adjacent housing facing surface 226 of the blocking member 219 (i.e., the surface opposite insert facing surface 227 and pivot protrusions 240)
  • the lock 200 may alternatively be configured to provide a small gap between the protrusion 260 and the housing facing surface 226 to further ensure that pivotable movement of the blocking member 219 is not impeded by the protrusion 260.
  • these various aspects, concepts and features may be used in many alternative embodiments, either individually or in various combinations and sub-combinations thereof. Unless expressly excluded herein all such combinations and sub-combinations are intended to be within the scope of the present inventions. Still further, while various alternative embodiments as to the various aspects, concepts and features of the inventions-such as alternative materials, structures, configurations, methods, circuits, devices and components, software, hardware, control logic, alternatives as to form, fit and function, and so on-may be described herein, such descriptions are not intended to be a complete or exhaustive list of available alternative embodiments, whether presently known or later developed.

Landscapes

  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention porte sur un cadenas en combinaison comprenant un boîtier de serrure, un arceau et une pluralité de molettes. Un élément de blocage disposé à l'intérieur du boîtier de serrure peut pivoter autour d'un point de pivot sur l'élément de blocage entre une position de fixation d'arceau et une position de libération d'arceau. Chacune de la pluralité de molettes comprend un élément de déverrouillage disposé sur une périphérie externe de la molette. Lorsque chacune de la pluralité de molettes est tournée dans une orientation de déverrouillage, chacun des éléments de déverrouillage s'aligne avec une partie prise de molette correspondante de l'élément de blocage, permettant à l'élément de blocage de pivoter de la position de fixation d'arceau à la position de libération d'arceau. La prise de l'élément de blocage avec la surface avant interne du boîtier de serrure est limitée à un emplacement longitudinalement aligné avec le point de pivot, de façon à limiter un mouvement latéral de l'élément de blocage sans limiter un mouvement de pivotement de l'élément de blocage.
PCT/US2011/023089 2010-02-01 2011-01-31 Cadenas avec caractéristiques de sécurité anti-cliquettement WO2011094655A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US30010610P 2010-02-01 2010-02-01
US61/300,106 2010-02-01
US30487910P 2010-02-16 2010-02-16
US61/304,879 2010-02-16

Publications (1)

Publication Number Publication Date
WO2011094655A1 true WO2011094655A1 (fr) 2011-08-04

Family

ID=44319840

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/023089 WO2011094655A1 (fr) 2010-02-01 2011-01-31 Cadenas avec caractéristiques de sécurité anti-cliquettement

Country Status (2)

Country Link
CN (1) CN102140867A (fr)
WO (1) WO2011094655A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995972A (zh) * 2011-09-19 2013-03-27 杨耀坤 双机制锁芯结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3080378C (fr) 2014-06-12 2023-01-31 Schlage Lock Company Llc Arceau a double verrouillage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419893A (en) * 1966-06-13 1968-12-31 Emhart Corp Permutation locks
US3817063A (en) * 1973-03-29 1974-06-18 Emhart Corp Padlock construction
US6012309A (en) * 1999-02-17 2000-01-11 Liu; Tien-Kao Pad lock with reliable change of code number

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6675614B2 (en) * 2002-02-13 2004-01-13 The Sun Lock Company, Ltd. High security combination padlock with locking bar
US8539799B2 (en) * 2007-12-07 2013-09-24 Master Lock Company Llc Combination lock

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419893A (en) * 1966-06-13 1968-12-31 Emhart Corp Permutation locks
US3817063A (en) * 1973-03-29 1974-06-18 Emhart Corp Padlock construction
US6012309A (en) * 1999-02-17 2000-01-11 Liu; Tien-Kao Pad lock with reliable change of code number

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995972A (zh) * 2011-09-19 2013-03-27 杨耀坤 双机制锁芯结构

Also Published As

Publication number Publication date
CN102140867A (zh) 2011-08-03

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