FR2590924A1 - SLIDING BARREL LOCK AND PEN LOCK - Google Patents

Abstract

The invention relates to a lock with sliding cylinder and locking bolt in the locked position. The lock according to the invention is characterized by the fact that it comprises a hook 13 tilting against the action of a spring 16 about an axis 14, 15 orthogonal to the axis of the barrel 2 between a first position in which the free end 13 'of the hook 13 is adjacent to the free end of the locking bolt 6 or of a zipper 9 integral in translation with said bolt 6, and a second position in which the free end 13' of said hook 13 escapes said bolt 6, a shoulder 18 of barrel 2 resting on a projection 17 of said hook 13, so as to cause hook 13 to tilt from the first to the second position during the sliding of barrel 2. Application to the automotive industry . (CF DRAWING IN BOPI)

Description

SLIDING BARREL LOCK AND PEN BLOCKING.

  The invention relates to a sliding cylinder lock

  and locking bolt in locking position, in particular

  bind but not exclusively for steering lock of motor vehicle.

  In most known locks, the locking bolt

  rusting, subjected to the action of a return spring, comes snap into a slot of the fixed part but can be pushed back, against the action of the spring, by a thief

  having managed to access the bolt. Various solutions have been proposed

  to lock the bolt in the locked position and

  do not release it until after a certain rotation of the barrel.

  These proposed solutions are usually complicated and

  ous. The problem posed is further complicated when the

barrel is sliding.

  The present invention aims to obtain a simple and economical locking means for the bolt in the position of

  lock, in a sliding cylinder lock.

  For this purpose, the lock according to the invention is

  characterized in that it comprises a hook swinging against the action of a spring about an axis orthogonal to the axis of the barrel between a first position in which the free end of the hook is adjacent to the free end locking bolt or a solidarity zipper in

  translation of said bolt, and a second position in the-

  which free end of said hook escapes said bolt,

  a shoulder of the barrel being supported on a projection of-

  said hook, so as to tilt the hook from the first to the second position during the sliding of the

barrel.

  The device according to the invention uses a simple and economical piece, with a return spring which can be a simple leaf spring folded and welded to the workpiece, which ensures easy assembly and operation

sure.

  Advantageously, the hook has a nose resting on a shoulder of a cam engaged with the barrel after driving the key, which forms the pivot axis of the hook without fixing the hook relative to a fixed part. The tilting of the hook by the sliding of the

  barrel also provides anti-rotation security

for the lock.

  The invention will be well understood on reading the

  cription following made with reference to the accompanying drawing in which: - Figure 1 is a schematic axial sectional view of a steering lock according to an embodiment of the invention, key exit and locking latch blocked; - Figure 2 is similar to Figure 1, the key being depressed but not turned; FIG. 3 is similar to FIG. 2, the cylinder having undergone a rotation of withdrawal of the locking bolt, and FIG. 4 is similar to FIG. 3, the cylinder having been brought back to the locking position, the key being

not being withdrawn.

  The lock comprises a stator 1 in which

  a barrel 2 which can slide axially against the action of a spring 2 'when pairs of pistons 3-4 are displaced by a corresponding key 5 so that their joint planes are in the casing of the barrel 2 ( Figures 2, 3, 4). In the absence of the correct key (FIG. 1), the barrel is fixed in rotation and in translation by

  relative to the stator 1. The cylinder 2 controls a bolt of

  6 by means of a cam 7, which is not

  brewed with the barrel 2 after translation thereof,

  acting on a finger 8 of a zipper 9 secured in trans-

  bolt 6. A return spring 10 tends to bring

  the bolt 6 in the locking position and a set of pal-

  page 11 of the key 5 keeps the bolt 6 in the position of de-

  lock as long as the key is in the key channel 12 of the

barrel 2.

  According to the invention, a hook 13 is mounted

  pivoted by a spout 14 resting on a circular shoulder

  15 of the cam 7 and is subjected to the action of a spring 16 formed of a folded elastic blade welded to the hook

  13. A projection 17 of the hook 13 is housed on the trajector

  shoulder of a shoulder 18 of the barrel 2.

  In the locking position (FIG. 1), the hook 13 is tilted so that its free end 13 '

  is immediately adjacent to the free end of the

  Rette 9, which prohibits driving the pane 6 against the action of its spring 10. The cam 7 not being engaged with the

  barrel 2, a rotation force of the barrel, shear-

  3-4 pistons, does not allow the withdrawal of the pane. In addition, the barrel 2 comprises a tongue 19 (FIG. 2)

  cooperating with a groove 20 of the stator which allows the transmission of

  the cylinder only in the rest position, so that

  that force rotation is made even more difficult.

  During the driving of the barrel 2; the shoulder 18 of the barrel 2 pushes the projection 17 of the hook 13 which tilts by compressing the spring 16, the end 13 'of the hook 13 releasing the rear of the pull tab 9 by releasing

the pane 6.

  During the rotation of the barrel 2, the cam 7 brings the blade 6 back to the erased position, the barrel 2 being

  maintained in the advanced position by cooperation of its

  21 with the adjacent wall 22 of the stator 1, as soon as the

  tongue 19 has left the groove 20 (Figure 3).

  When returning to the angular position of the barrel 2 corresponding to the lock (FIG. 4), the barrel 2 slides under the action of its spring 2 ', the blade 6 remains in the erased position grazed to the probe assembly 11 and the hook 13, under the action of the spring 16, toggles in the opposite direction but its free end 13 'abuts against the pull tab 9. Only after extraction of the key 5 that the bolt 6 is released and, when it is fallen into a slot (not shown) of the steering shaft, hook 13 comes to end his swingemient, Iimité by the stop of its projection 17 against a support of the stator 1, and resume its

  locking position of the bolt shown in Figure 1.

Claims (4)

  1. - Sliding cylinder lock and bolt lock in the locked position, characterized in that it comprises a hook (13) swinging against the action of a spring (16) about an axis (14, 15 ) orthogonal to the axis of the cylinder (2) between a first position in   which the free end (13 ') of the hook (13) is   located at the free end of the locking bolt (6) or a pull tab (9) integral in translation with said bolt (6), and a second position in which the free end (13 ') of said hook (13) escapes said bolt (6), a shoulder (18) of the barrel (2) bearing on a protrusion (17) of said hook (13), so as to tilt the hook (13) from the first to the second position during sliding of the barrel (2).   2. - Lock according to claim 1, characterized in that the hook (13) has a nose (14) resting on a shoulder (15) of a cam (7) engaged with   the barrel (2) after depressing the key (5).   3. - Lock according to one of claims 1 and 2,   characterized in that the barrel (2) and the stator (1) cooperate in a groove locking position (20) and tongue (19).   4. - Lock according to one of claims 1 and 2,   characterized by the fact that the barrel. (2), for the   angular positions different from the introductory position   key, cooperates by its rear face (21) with a stop (22) of the stator (1).