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Limit stop for a door or lid of a motor vehicle

  • US 7,703,754 B2
  • Filed: 01/16/2009
  • Issued: 04/27/2010
  • Est. Priority Date: 02/11/2005
  • Status: Expired due to Fees
First Claim
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1. A limit stop with an elastomer resilient element (1) to be secured on a door or lid and/or on an opposing stationary vehicle section for damping forces generated when the door or lid strikes stationary chassis parts of a motor vehicle,wherein the limit stop includes an additional damping section (2) disposed adjacent to and cooperating with the resilient element (1) in a spring deflection direction of the resilient element (1),wherein the damping section (2) comprises at least two chambers (4, 5) filled with a fluid and a nozzle plate (6) arranged between chambers (4, 5) with at least one channel extending through the nozzle plate and connecting the chambers (4, 5),wherein the fluid is displaced from one of the at least two chambers into the other of the at least two chamber during a spring deflection of the elastomer resilient element (1), thereby producing a pressure force which is caused by the buildup in pressure when the volume of one of the chambers (4) decreases and augments the return force of the resilient element (1),an inner core (3) protruding into the elastomer resilient element (1), but not protruding into any of the at least two chambers (4, 5), wherein a height of the inner core (3), by which it protrudes into the elastomer resilient element (1), is adjustable, so that tolerances of the chassis parts can be compensated and gap dimensions between the door or lid and the stationary chassis parts can be adjusted,a stop face (8) and an upper receiving body (9) which receives the inner core (3) and the elastomer resilient element (1) which partially surrounds the inner core (3),wherein the combination of stop face (8) and upper receiving body (9) form a support body, which is assembled or connected as a single piece with a lower receiving body (10) receiving the nozzle plate (6) and an equalizing bellow (11),wherein the chambers (4, 5) adapted to receive a viscous fluid are formed above and below the nozzle plate (6) and are connected by a channel (7) which operates as a nozzle.

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