Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Parking brake system










Image Number 6 for United States Patent #7651175.

A parking brake system is provided in which a parking brake state for a wheel brake (2A) is obtained by forward movement of a parking piston (44) slidably fitted into a casing (23) with the rear side of the parking piston (44) facing a parking control fluid pressure chamber (47), and the forwardly moved state of the parking piston (44) is mechanically locked by spheres (58) pushed up as a result of forward movement of a lock piston (56) of a lock mechanism (31). Moreover, a plurality of guide grooves (126), into which parts of the spheres (58) are rollably fitted, are provided on the inner face of a large diameter hole (38), the inner face of a restricting step (42), and the inner face of a small diameter hole (39), the guide grooves (126) having a concavely curved cross-sectional shape and extending in the axial direction of an insertion shaft (59). This enables an automatic parking brake state to be obtained by a simple structure without consuming power.








 
 
  Recently Added Patents
Rack
Compositions and methods for concentrating and depleting microorganisms
Methods for predicting cardiac toxicity
Solar-powered roadway light
Helmet mandible
Quinazoline compounds and their use in perfume compositions
Safety device and method for electric heating appliances
  Randomly Featured Patents
Method and apparatus for recording/reproducing optical information
Storage control apparatus
Method for fast computation of optimal contact forces
Disposable defibrillator electrode assembly
Apparatus for the cannulation of blood vessels
Printer
Semiconductor trench capacitor cell with merged isolation and node trench construction
Apparatus for tensioning V-belts, especially for automotive vehicles
Dynamic random access memory having decoding circuitry for partial memory blocks
Motion toy