JP2004058861A5 - - Google Patents

Claims (4)

A center shell defining a housing comprising a front shell and the rear shell into a plurality of chambers, and a mounting member provided through the center shell, one end side provided in the indoor of the plurality of chambers and a sleeve having a cylindrical portion to which the center shell engages the attachment member is inserted in the mounting member by the vehicle and the through rod type pneumatic booster of attached to the master cylinder, said center shell to catch the axial forces acting, pneumatic booster, characterized in that the flange portion having a larger diameter than the cylindrical portion provided in the sleeve. 2. The pneumatic booster according to claim 1, wherein the center shell is received in the axial direction between the center shell and the flange portion of the sleeve, and the center has the same diameter as or larger than the flange portion. pneumatic booster, characterized in that a shell base member. A center shell defining a housing comprising a front shell and the rear shell into a plurality of chambers, and a mounting member provided through the center shell, one end side provided in the indoor of the plurality of chambers There is provided a sleeve that engages with the center shell and into which the mounting member is inserted. In a through rod type pneumatic booster that has a joint portion and a step portion provided between the fitting portion and the cylindrical portion and is attached to the vehicle and the master cylinder by the attachment member, between the step portion and the center shell, to catch the axial forces acting on the Center shell, pneumatic booster, characterized in that a center shell receiving member having a larger diameter than the cylindrical portion apparatus A center shell defining a housing comprising a front shell and the rear shell into a plurality of chambers, and a mounting member provided through the center shell, one end provided on one chamber of the plurality of chambers In a through rod type pneumatic booster attached to a vehicle and a master cylinder by the mounting member, the sleeve is engaged with the center shell and is engaged with the sleeve of the center shell. A pneumatic booster characterized by increasing the rigidity of the engaging portion of the center shell by increasing the thickness around the joint portion.