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
  • E05C9/18—Details of fastening means or of fixed retaining means for the ends of bars
  • E05C9/1825—Fastening means
  • E05C9/1875—Fastening means performing pivoting movements
• • 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
  • E05B63/0013—Locks with rotary bolt without provision for latching
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B17/00—Accessories in connection with locks
  • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
  • E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying

Definitions

• the present invention relates to a bolt lock comprising a hook bolt pivotally mounted inside a housing between an unlocking position and a locking position in which the bolt is blocked, that is to say that its return to the unlocked position is prevented during a direct action on the end of the bolt, according to the preamble of claim 1.
• This patent FR-A-2 587 752 indeed describes a lock bolt in which the hook bolt cooperates with an easel, itself connected to a rod of a bolt, by drive means and by means of blocking the bolt in the locking position preventing its return to the unlocking position during a direct action on this bolt, exerted for example during an attempted break-in.
• the drive means allow the bolt to pivot from the translation of the bridge actuated by the rod.
• the object of the present invention is to provide a locking lever comprising a bolt blocked in the locking position using means improved compared to those of the prior art.
• the invention thus relates to a bolt lock comprising a hook bolt pivotally mounted inside a housing between an unlocking position and a locked locking position, this bolt cooperating with an easel, itself connected to a rod cremone bolt, by drive means and by means of blocking the bolt in the locked locking position preventing its return to the unlocking position during a direct action on this bolt, the drive means allowing the pivoting of the bolt from the translation of the bridge actuated by the rod, and comprising meshing means.
• this bolt lock is characterized in that the drive means comprise first and second engagement means, the first means comprising a toothed sector secured to the bolt and substantially centered on the pivot axis of the latter, this toothed sector meshing with the teeth of a rack secured to the bridge to a position corresponding to a locking position of the bolt, said second meshing means, secured like the first, on the one hand to the bolt, on the other hand of the bridge, then relaying said first meshing means to continue the pivoting of the bolt to a locked locking position of the bolt in which the last tooth of the toothed sector, released from the meshing with the teeth of the rack is in opposition to a tooth of the rack.
• any return of the bolt to the unlocking position is prevented, for example during '' an attempted break-in when an effort is exerted on the end of the bolt.
• said second meshing means comprise a stud carried by the bolt, this stud being movable during the translation of the bridge and the rotation of the bolt between a position where this stud is free relative to the bridge and a position where it engages in a notch made in the bridge, relaying said first meshing means to ensure the rotation of the bolt to the locked locking position.
• the lock-bolt comprises a secondary box 3 inside which is pivotally mounted around an axis XX ′, a hook bolt 1.
• This bolt 1 can be moved between a retracted unlocking position (FIG. 1) and a locking output position (FIG. 2) by the translation of the rod 5 moving in the direction F1, to the left in the figures, behind a headrest 6 to from a control mechanism located in the main gearbox.
• This mechanism can be controlled either by a key or by a handle (not shown).
• the rod 5 is made integral with an easel 4.
• the bolt 1 has a toothed sector 7, substantially centered on the pivot axis XX ′, comprising in the embodiment shown three teeth 12a, 12b, 12c meshing with the teeth 11a, 11b, 11c of a rack 8 secured to the bridge 4.
• the translation of the bridge 4 controls, through these first meshing means, the pivoting of the hook bolt 1.
• Second meshing means complete the toothed sector 7 and the rack 8.
• the bolt 1 carries a movable stud 9, during the translation of the easel 4 and the rotation of the bolt 1, between a position where this stud 9 is free relative to the easel 4 and a position where it engages in a notch 10 formed in the easel 4, relaying said first meshing means 7, 8 to ensure the rotation of the bolt 1 to the locked locking position.
• the stud 9, which has engaged in the notch 10 formed in the easel 4, is in abutment against a rear edge 10b of said notch and is pushed in the direction F1 by this edge. It is noted that, in this position of the stud 9, corresponding substantially to the end of the rotation of the bolt 1 on its axis XX 'and therefore to its locking position, the last tooth 11c of the rack 8 and the last tooth 12c of the sector toothed 7 are in opposition, preventing any reverse rotation movement of the bolt 1 during a direct action on the end 2, in the direction of the arrow F.
• the notch 10 has a width determined in the direction of movement of the bridge larger than the section of the pad 9, which allows a certain free travel between the pad 9 and the bridge 4.
• This notch 10 made immediately after the last tooth 11c of the rack 8, has a front edge 10a directly extending the last tooth 11c of the rack 8 and a rear edge 10b, opposite this same last tooth 11c, and against which the pad 9 is supported in the locked position.
• the rear edge 10b is constituted by an internal edge at an angle to the bridge 4 in U.
• the rack 8 can be produced directly on the internal edge of the easel 4.
• This rack 8 can also be produced in an insert on the easel 4.
• the bolt 1 In the unlocked position, the bolt 1 is in the erased position inside the housing 3, as indicated in FIG. 1.
• a handle or a key control of the barrel or the like of a main housing (not shown) is rotated to move the rod 5 and the bridge 4 in the direction F1.
• the last tooth 12c of sector 7 is still located between the last two teeth 11b, 11c of the rack 8, when the stud 9 comes to the bottom of the notch 10.
• the bridge 4 actuated by the rod 5 in the direction F1 has pushed via the rear edge 10b the stud 9 in the said direction F1 to continue to pivot the bolt 1 towards its extended position, in the direction F2, clockwise in the figure.
• the last tooth 12c of sector 7 has come out of its meshed position and the space between the teeth 11b and 11c of the rack 8 which have moved in the direction F1, which has made it possible to arrive in the position, shown in Figure 2, in opposition to each other of the teeth 11c and 12c.
• the stud 9 has taken over from this last tooth 12c to ensure the pivoting of the bolt 1 continues under the action of the translational movement of the bridge 4.
• the setting in opposition of the above teeth constitutes a toggle brought in the final phase to a rupture of balance blocking the rotation of the bolt 1.
• the stud 9 Under the effect of the translation of the bridge 4, the stud 9 reaches the bottom of the notch 10 passing from a support against the rear edge 10b (see FIG. 4) to a support against the front edge 10a thereof, which constitutes an idle stroke facilitating the abandonment of the position in opposition of the teeth 11c and 12.
• the bolt 1 Under the thrust of this front edge 10a, the bolt 1 begins its pivoting movement so that the tooth 12c of the toothed sector progressively engages the teeth 11c and 11b of the rack 8, starting the engagement of the toothed sector 7 with the rack 8 until the unlocking position shown in FIG. 1, in which the tooth 12a of the toothed sector is engaged in the corresponding space of the rack 8, and the stud 9, released from the notch 10, returns to its free position, substantially in abutment against the rod 5.
• the second meshing means could be constituted by any means of complementary shapes equivalent to the stud and the notch described, provided that their interaction results in the opposition of the last tooth of the toothed sector with a tooth of the rack.
• the invention is not limited to the production of a secondary housing.
• the invention can be applied to the direct control of a hook bolt by a nut associated with the axis XX 'in the case of a main housing and in this case the hook bolt will go to order other bolts located outside the perimeter of this housing.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Lock And Its Accessories (AREA)
• Pivots And Pivotal Connections (AREA)
• Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=9542142

Family Applications (1)

Country Status (4)

Cited By (2)

Families Citing this family (8)

Family Cites Families (5)

• 1999
  • 1999-02-17 FR FR9901932A patent/FR2789715B1/fr not_active Expired - Fee Related
• 2000
  • 2000-01-19 DE DE2000609373 patent/DE60009373T2/de not_active Expired - Fee Related
  • 2000-01-19 EP EP20000400134 patent/EP1030017B1/fr not_active Expired - Lifetime
  • 2000-01-19 ES ES00400134T patent/ES2218076T3/es not_active Expired - Lifetime

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