Park lock for motor vehicles

Park lock for motor vehicles

  • CN 105,393,029 A
  • Filed: 09/18/2014
  • Published: 03/09/2016
  • Est. Priority Date: 10/10/2013
  • Status: Active Grant
First Claim
Patent Images

1. the parking for Motor Vehicle is locked, and the parking especially for the Motor Vehicle with automatic transmission case, automation driving mechanism or electric driver is locked, and it comprises:

  • Have the Effector (12) for the axle (14) connected with final controlling element (16), wherein, described axle (14) can turn round around manipulation axis (A) between actuated position and unlocked position,That connect with described Effector (12), that there are lock bolt (20) Locking Device (18), described lock bolt can turn round around manipulation axis (A) between locked position and unlocked position,Ratchet (22), this ratchet can turn round around pawl-bearing axis (B) between locked position of coupler and release position, andParking lock gear (24), this parking lock gear can rotate around parking lock axis (C) and connect with vehicle wheels,Wherein, described ratchet (22) embeds parking lock gear (24) in its locked position of coupler, to stop parking lock gear (24) around the rotation of parking lock axis (C), and in its release position, possess spacing with parking lock gear (24), thus parking lock gear (24) is released around the rotation of parking lock axis (C)Wherein, the axle (14) of described Effector (12) is loaded in its locked position by lock bolt (20) in its actuated position and ratchet (22) loads by this lock bolt in its locked position of coupler, andWherein, described lock bolt (20) occupy its unlocked position in the unlocked position of described axle (14), and described in this unlocked position, ratchet (22) is released,It is characterized in that at least one item in following features;

    An axial end portion (44) of-described axle (14) is configured to multiple tooth shape or polygonal to be connected with final controlling element (16) positive ground;

    -the latch elements (48) that is provided with leaf spring (46) and is torsionally connected with described axle (14), wherein, described leaf spring (46) not only forms kayser with latch elements (48) and is connected in the actuated position of described axle (14) but also in the unlocked position of described axle;

    -described parking lock gear (24) circumferentially alternately has tooth (34) and teeth groove (36), and wherein, each tooth (34) has the tooth top profile (38) of saddle roof shape;

    -described lock bolt (20) and/or described ratchet (22) have at least one gap part (42) to reduce moment of inertia;

    -described lock bolt (20) and described ratchet (22) mating reaction in the locked position of lock bolt (20), make to there is self-locking between lock bolt (20) and ratchet (22).

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