Locking device and vehicle seat

摘要

A locking device for a vehicle seat has a latch which is mounted pivotably about a second axis and is intended for locking a counter element, with a clamping eccentric which is mounted pivotably about a first axis parallel to the second axis and, by interaction with a first functional surface of the latch, secures a locked state of the latch. In the locked state, the clamping eccentric acts in a spring-loaded manner on the first functional surface via a clamping surface. The clamping eccentric is moveable from the locking position thereof into the unlocking position thereof. A pretensioned compression spring is provided, which is supported at one end thereof on an arm of the clamping eccentric in a manner spring-loading the latter into the locking position thereof and, at the other end thereof, acting upon the latch in the unlocking direction.

主权项

1. A locking device for a vehicle seat, comprising:
a pawl which is mounted such that it can be pivoted about a second axis in order to lock a counterelement; a clamping eccentric which is mounted such that it can be pivoted about a first axis which is parallel to the second axis and secures a locked state of the pawl by interaction with a first functional face of the pawl, the clamping eccentric acting in a spring-loaded manner on the first functional face via a clamping face in the locked state, the clamping eccentric exerting a closing moment on the pawl in the locked state, wherein the clamping eccentric can be moved out of its locked location into its unlocked location; and a prestressed compression spring being provided which is supported with its one end on an arm of the clamping eccentric so as to spring-load the latter into its locked location and loads the pawl in the unlocking direction with its other end, wherein a first lever arm between the action point of the compression spring on the pawl and the second axis is greater than a second lever arm between the action point of the compression spring on the clamping eccentric and the first axis, wherein a third lever arm between the contact point of the first functional face on the clamping face and the second axis is greater than a fourth lever arm between the contact point of the first functional face on the clamping face and the first axis, wherein the ratio of third lever arm to fourth lever arm is greater than the ratio of first lever arm to second lever arm.