FR2528097A2 - LOCK WITH PIVOT BIT, INCLUDING FOR MOTOR VEHICLE - Google Patents

Abstract

IN THIS LOCK, THE LOCK 7B CAN BE PIVOT IN THE DIRECTION OF THE LOCKING OF THE LOCK, BY AN ASSISTED DRIVE MECHANISM INCLUDING AN ELECTRIC MOTOR 33 AND A MOBILE CREW 81 WHICH INCLUDES IN PARTICULAR A TOOTH SECTOR 82 COOPERATING WITH THE LOCK 7B BY L 'INTERMEDIATE OF JOINT TEETHES 83, 84. A DETECTOR 92, 94 STARTS THE ROTATION OF THE MOTOR AS SOON AS THE PENE 7B STARTS TO MOVE FROM ITS OPEN POSITION, AT THE BEGINNING OF THE LOCK CLOSING PHASE.

Description

The main patent has been described with a lock, particularly for a door

motor vehicle,

  of the type comprising on the one hand a boot for the mechanis-

  lock and on the other hand a movable lock

  port to this box, the lock mechanism being provided on the one hand with a bolt oscillating about an axis which is perpendicular to the direction of movement of the striker with which the bolt cooperates with a fork-shaped portion, and on the other hand a movable lever of operation of the lock which is intended to allow the rotation of the

  bolts in the direction of the release of the waste through the

  a locking member interposed between the bolt and the operating lever, the locking member being movably mounted in one of the two parts formed by the bolt and the operating lever between a projecting position for

  to secure the parts and a retracted position to

  riser the free movement of rotation of the bolt relative to the lever, the second of the two parts comprising for the

  at least one notch in which the organism

  blocking is intended to penetrate, the two parts being mounted so as to be able to deviate from one another to bring out the blocking member of the notch provided

in said second room.

  The present addition aims at perfection

  the lock defined above mainly for

following reasons.

  In general, the current motor vehicle door locks and also the lock described in the main patent ensure the closure of the door under the action of a force due to a manual thrust combined with the inertial forces resulting from the slamming. of the door The manual action combined with the forces of inertia, gives the seals, usually fixed on the body, some compression

  which ensures the airtightness of the vehicle.

  Currently, we can criticize

  of all vehicles a lack of

  on the one hand results in aeraulic noise percepti-

  vehicle occupants and the penetration of cold air or hot air disturbing the air conditioning.

  These phenomena reduce comfort.

  Moreover, the gain in weight currently sought by all manufacturers to reduce the

  energy consumption of the vehicle leads to a reduction in

  the mass of the doors, which reduces the inertial forces due to the slamming of the door and causes a less good compression of the seal thereof,

  which further accentuates the defects mentioned above.

  The purpose of the invention is precisely to

  to remedy these defects and is therefore intended to

  re defined above which is characterized in that the bolt is coupled to a mechanism assist-, drive

  around its axis of oscillation in the direction of the firm-

lock.

  Thanks to this particular characteristic

  the closing of the door is no longer dependent

  manual action or the inertia of the door itself.

  same but a driving force of a predetermined value generated in the lock and triggered in the phase

  final closing of the door.

  The invention is described below in more detail with the aid of drawings representing only one embodiment in which: FIG. 1 is an elevational sectional view of a lock according to the present addition; Figures 2, 3, 4 and 5 are sectional views taken respectively along the lines 2-2, 3-3, 4-4 and 5-5 of Figure 1;

  Figs. 6A to 6D show schematically

  Four phases of operation of the lock according to the invention and FIGS. 7A and 7D represent four phases of operation of a circuit diagram.

which is associated with this lock.

  We will first refer to Figs. 1 to 5 to describe the construction of the lock according to the invention.

  In principle, this lock pre-

  same basic parts and functions in the same way as the lock described in the main patent and,

  in what follows, only a description will be given

  summary of these basic parts, the reader being able to

  refer for more details to the description in detail

  It should be noted that the references used in the figures of the present addition are identical to those used in this main patent in the case of parts having a shape and / or a

identical function.

  This being the case, the lock therefore comprises a casing 1 in which a blind passage 3 is made.

  equipped with a flared entry 4 in which is intended to

  to make a lock 5, it being understood that this lock is

  designed to be mounted on the edge of a door

  car-hitting, the strike being fixed on the amount of

  the bodywork associated with the door.

  The lock does not prevent an inversion of

  this implantation, with minor modifications.

  The striker 5 is mobile in translation relative to the

passage 3.

  The lock comprises a lock mechanism 6 which firstly comprises a bolt 7 B mounted oscillating about an axis 8 which is fixed in the housing parallel to the bottom of the latter With this bolt cooperating an operating lever 9 which is mounted swinging around

  a pin 10 also fixed on the bottom of the casing 1.

  These two pieces 7 B and 9 are ordered

by the actuating assembly 11.

  Between the bolt 7 B and the lever of maneuver

  9 is provided a locking member 12 which presents the structure

  General This roller is housed in a notch which is formed in the periphery of the bolt 7 B, the latter also comprising a heel 23 forming a stop for coming into abutment against the rear edge of the operating lever 9 when the bolt is in the corresponding position

when the lock is opened.

  The bolt 7 B comprises approximately diametrically o ppose the notch 20, a notch 24 which is intended to receive the striker 5 and retain it when the bolt is in the pose corresponding to the closing of the lock Around of the axis 1 O of articulation of the operating lever 9 is mounted a spring 25

  which solicits this lever in its release or release position

  t ion of the roller 12 and this spring is supported on the one hand on a stop

  26 integral with the housing 1 and secondly in a notch 27 practically

  q in the rear edge of the operating lever 9.

  In the concave edge 28 of this lever, facing a convex edge 29 of the bolt 7 B are formed notches 30, 31

  31a serving to receive the locking member 12, the notch 30 corres-

  p ondant at the complete closing of the lock, the notch 31 'has a closing said "first notch" and a third notch that corresponds to a position called "second notch" The first two positions are

  to ensure the retention of the vehicle door when the use of

  1 did not close it properly This bad closure is generally

  it is noticeable when the vehicle is traveling, because of the vibrations of the road, because it is not closed until compression

  joints, with the user being encouraged to close

  In the lock described here, the first and second screens are in fact designed to meet international standards.

  the construction of door locks for motor vehicles

  m obiles, although these notches are strictly speaking not necessary in the lock according to the invention since as will be seen below,

  as soon as the mechanism 6 of this lock is in one or the other

  positions corresponding to the first or the second

  Notches, it is proceeded to the assisted lock of the lock.

  The lock also comprises an electric motor 33 coupled to a worm 34 which meshes with the toothing of a toothed wheel 35 rotatably mounted on a fixed pin 36 in the casing. This toothed wheel comprises on the periphery of one of its faces, one

  cavity forming a cam surface 39 cooperating with a

  evening 41 of a switch 42 fixedly mounted in the casing.

  The organs that have just been described are found without exception in the lock according to the main patent and will now be described the organs that constitute the improvements of this lock, according to the present

addition.

  First of all, it can be seen that on the pin 36 of the toothed wheel 35 is mounted in rotation a cup whose bottom is turned towards the toothed wheel and whose peripheral rim 61 constitutes a cam with which a roller 62 cam which is rotatably mounted on a pivot 63 secured to the operating lever 9 It will be noted that the flange 61 has a deformation 64 on a small part of its periphery, this deformation

  corresponding to the lower part of the cam path constitutes

killed by this ledge.

  A flat 65 is formed in the bottom of the cup 60 forming a tongue 66 curved at 900

  towards the wheel 35 and thereby penetrating into a cavity

  Tee 67 formed in the wheel 35 This cavity 67 is in an arc centered on the axis of the pin 35 and extends over a

predetermined Oc angle.

  In the wheel 35 is also made a central recess 68 traversed by the pin 36 around which is wound a coil spring 69 which is retained by one of its ends in the wheel 35 and its opposite end in the cup 60 The spring 69 urges this cup in the direction of the arrow F 6

(Fig 1).

  The flange 61 of the cup 60 also comprises a tab 70 which extends axially from its peripheral edge and which cooperates with a lever 71 for emergency unlocking which is mounted oscillating on a pin 72 fixed between the bottom 1 of the housing and a support plate 73 in which are also fixed the

  corresponding ends of the pin 8 and the axis 10.

  At the end of the lever 71 opposite to that intended to come into contact with the catch 70, there is provided a yoke 74 in which is articulated an operating rod at the end of which is provided an emergency actuating button 76 which is located preferably in a housing formed in the inner wall of the door so

  to be easily accessible to the passengers of the vehicle.

  The lever 71 is attached by the same end to a res-

  reminder 77 also attached to the housing 1 and urging this end of the lever against a stop

  78 integral with the wall of the housing 1.

  The pin 36 is fixed in a support plate 79 integral with the housing and also serves to consolidate another pin 80 whose axis is parallel to those of the pins 8, 10, 36 and 72, and around which

  is mounted oscillating a blocking rig 81 aq Sisté, de

  the lock This crew comprises a toothed sector 82 whose toothing 83 meshes with a portion of toothing 84 provided on the periphery of the bolt 7 B The crew 81, which has approximately the shape of a clevis with asymmetric branches, also has a connecting portion 85 which extends parallel to the axis of the pin 80 and which extends, at right angles, by an operating arm 86 extending parallel to the bottom of the housing 1 but the opposite side relative to the The crew 81 is thus doubly articulated on the spindle 80. At the end of the operating arm 86 opposite the spindle 80 is provided a thrusting lug 87 which extends again at a right angle with respect to the spindle 80. arm in the direction of the wheel 35 and which cooperates with a roller 88 rotatably mounted about a pivot 89 secured to the wheel 35 and whose axis of rotation extends parallel to the axis of the pin 36 A coil spring 90 is wrapped around the bro che 80 for

  solicit the crew 81 in the opposite direction of the

  the clockwise as shown in Fig 1, that is to say in one direction tending to place the bolt 7 B in its position

opening.

  The bolt 7 B is provided at its periphery, in a position approximately diametrically opposite to the toothing 84, of an insulating track 91 forming a cam track cooperating with a feeler 92 secured to the movable contact 93 of a switch 94. equipped with two fixed contacts 95 and 96, the movable contact 93 being in abutment against the CL 95 cfix when the probe 92 is on the high ge 91 of the cam path (hereinafter called

  this position the "O" position of the switch 94).

  A similar arrangement is provided for

  the switch 42 whose probe 41 cooperates with the cavity

  In FIG. 4, it can be seen that this pulley

  fear is secured to the movable contact 97 of the switch 42 which further comprises two fixed contacts 98 and 99 against which the movable contact 97 can selectively be supported by the probe 41 In what follows, it will be considered that when the probe 41 is in the cavity of the toothed wheel 35, the switch 42 is located

in position "1".

  Finally, to complete the description that

  precedes, it will be noted that the roller 12 is held in place by a yoke 100 which overlaps the area of the bolt 7B in

  which is the notch 20 and this clevis is now

  naked on the bolt thanks to two rods 101 and 102 which extend

  tooth between the wings of this screed and which penetrate into

  small notches 103 and 104 formed in the bolt.

  Figs 7A to 7D represent, in four

  configurations, the electrical circuit that can be used

  se with the lock according to the invention.

  The diagram shown shows the

  42 and 94 connected in series with the motor 33 on a

  power source that can be the vehicle battery.

  It is also provided an actuating button 105 which is a two-position switch that can be operated

  by the user of the vehicle To facilitate the explanation

  the operation of the lock, only one switch 105 has been shown, but it is understood that normally the door to be opened from

  outside as inside the car, this commu-

  The controller must be either double or provided with control means arranged in such a way that this switch can be actuated both from the outside and from the inside of the vehicle. control means such as a magnetic card, a key switch, or any other similar means Inside, a simple button

order can be expected.

  We will now examine the part of the operation of the lock which has just been described

  concerning more specifically the characteristics

  forming the improvement according to the present addition.

  For a detailed description of how

  pe of this lock, one will refer to the description of the

main patent.

  Fig. 6A shows the situation when

  that the lock is open In these conditions, the striker is released from the bolt 7 B and to initiate the closure, the striker 5 must move closer to the lock in the direction of

  the arrow F 7, this movement being of course relative.

  The roller 12 is not in any of the notches of the operating lever 9 while the lever 86 is located

  in its extreme lower position defined by its link

  it is rotated with the bolt 7 B which is in abutment with its heel 23 against the lever, 9 As for the wheel 35, it is placed in a position in which the roller 88 is almost in contact with the lever 86 which is biased in this By the way, the switch 94 is in the "O" position because the probe 92

  is on the low beach of Cam Road 91

  mutator 99 is in the position "O" because the feeler 41 is out of the cavity of the wheel 35 If now the door is closed, the striker 5 pushes the bolt

  7 B in the position in which the roller 12 can penetrate

  in the first notch 31a of the operating lever

  (9) Under these conditions, the switch 94 changes position.

  because his feeler is rising on the upper beach of the

  cam of 91 which places the switch in: its oositiond "1" Da: tns these conditions, the electrical circuit of the motor 33 is closed and this engine is thus fed It results the

  rotation of the wheel 35 which by its roller 88 begins to re-

  push the lever 86 which tilts around the spindle 80 by driving the toothed sector 82 The toothing 83 thereof meshing with the toothing 84 of the bolt, the latter oscillates around its axis 8 causing the roller 12 to move beyond the last notch 30 of the operating lever 9,

  position which is shown in Fig 6 C In these con-

  the door is therefore supported on its joints which

  are solicited beyond their normal compression.

  When the roller 88 is in the diametrically opposed position relative to that it occupied when the lock was open (position of the Fig 6 C), the lever 86 is released As for the bolt 7 B, it

  turns in the opposite direction as before since the

  5 in this sense, as a result of the exer-

  This results in the roller 12 entering the notch 30 of the lever.

  operating maneuver 9, which causes the locking of the lock.

  In the meantime, the probe 41 of the switch 42 has penetrated into the cavity of the wheel 35.

  which causes the movable contact 97 to rock in the position

  "1" thus interrupting the power supply circuit of the motor 33 which is also stopped suddenly by the

  short circuit of the contact 97 and the movable contact of the

  maneuver 105 We then find ourselves in the situation

  in which the lock is completely locked, which corresponds to the situation represented on the

Fig 1-5.

  For the opening of the lock,

  the button 105, which again supplies the motor 33 through the contact 97, the movable contact of the button 105 and the movable contact 93, this circuit being kept closed as soon as the moving contact 97 switches from

  again because the probe 41 leaves the cavity

  wheel tee 35 The lock is opened

  when the roller 62 enters the deformation 64 of the

  edge of the cup 60 and the striker 5 can then be released from the bolt 7 B. It is therefore seen that the lock is blocked by motorized means to which the driving force is

  provided by the motor 33 which, because of its particular mounting

  and its associated maneuvering means turns only in one direction to perform all the functions in the lock A feed circuit with inversion

  polarity is not necessary for this motor.

  When the supply voltage disappears, the lock can nevertheless be opened by the emergency control formed by the lever 71 which is

  actuated in this case by the pull tab 75 and the button 76.

  When this button is depressed, the lever oscillates about the axis 72 coming into contact with the cleat 70 of the flange. This results in a small rotation of this cup relative to the wheel 35 around the pin 36, which movement is allowed because the cavity 67 provided in the wheel 35 has an angular extent Cru just sufficient for the roller 62 can enter

  the deformation 64 provided in the rim of the cup 60.

  Therefore, as soon as the lever 71 is actuated, this cup makes a relatively small relative movement relative to the wheel 35, the lever 9 can rock, the roller 12 is released and the latch can escape the bolt 7 B. When the emergency lever 71 is released, the spring 69 returns the cup 60 in its

  position that it previously occupied, the lock is

  comes to the normal open position and the electrical voltage being available again, the lock can

  operate in accordance with the sequences described above.

Claims (5)

  1 Lock, in particular for a vehicle door   the automobile, according to any of the claims   the main patent, of the type comprising on the one hand a   tier (1) for the lock mechanism (6) and secondly a striker (5) movable relative to this casing (1), the lock mechanism being provided on the one hand with a bolt (7). B)   oscillating about an axis that is perpendicular to the di-   rection of movement of the striker (5) with which this bolt cooperates with a fork-shaped portion (24) and secondly of a movable lever (9) for actuating the lock which is intended to allow the rotation of the bolt (7 B) in the direction of release of the striker (5) via -7 a locking member (12) interposed between the bolt and the operating lever, the locking member (12) being movably mounted in one of the two parts formed by the bolt and the operating lever between a projecting position for   to secure the parts and a retracted position to   the free movement of the blade relative to the   lever, the second of the two parts comprising for the solida-   at least one notch (30) in which the locking member (12) is intended to penetrate, the two parts (7 B, 9) being mounted so as to be able to move apart one   on the other to pull the locking member (12) out of the   check mark (3 o) pr 4 seen in said second room, characterized in that   the bolt (7 B) is coupled to a mechanism (33, 81)   drive shaft around its oscillation axis (8) in the sense of blocking the lock.   2 lock according to claim 1 of the present addition, characterized in that the mechanism for driving in rotation of the bolt comprises means for   detection (91, 94) for detecting the beginning of the movement.   bolt (7 B) from its open position, these means being coupled to said mechanism for controlling it   to complete the movement of the bolt in the direction of closing.   3 lock according to claim 2 of the present addition, when dependent on any one   claims 13 to 20 of the main patent,   in that said rotational drive mechanism   bolt (81) with a toothed member (82) meshing with a toothing (84) provided on the bolt and with a lever (86) which is coupled to the toothed member and which is arranged to cooperate with the toothed wheel (35) which allows the movements of the lever   maneuver (9) constituting the second piece of the lock.   re, so as to pivot the bolt in its closed position.   when said detecting means connected to the driving electric motor (33) causes the power supply thereof. Lock according to claim 3 of the   present addition characterized in that said wheel den-   tee (35) which is coupled to the motor (33) by a screw without   end (34) has an actuating member (88) for   a roller which cooperates with the lever (86) of said   to cause it to pivot about the   half of the race of this wheel (35).   Lock according to Claim 4 of the present addition characterized in that said detection means (91, 94) comprise a cam path (91) provided on the bolt (7 B) and an electrical switch   (94) connected in the motor circuit (33).   6 Lock according to any one of the   Claims 13 to 20 of the main patent and any of the claims cations 1 to 5 of the present addition, characterized in that it comprises emergency unlocking means (70, 71, 75, 76) to allow the emergency unlocking in the absence   supply voltage of said electric motor than.   Lock according to claim 6, characterized   in that the cam (60) of said toothed wheel is movable   the rotation thereof with respect to the axis thereof within the limits of a certain angular displacement (c C), and in that   it is provided with a cooperating actuating member (70)   with an emergency lever (71) operable from the inside of the door and causing a slight rotation of the cam (60) on said angle so as to present it in a position in which it releases said lever machine tool (9)