Seal assembling method of master cylinder and seal assembling apparatus
AssigneeHitachi Automotive Systems, Ltd.
InventorsMASATAKE YAMANAKA, Hideki Hosaka
Life of this patent
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Abstract
A seal assembling method of a master cylinder for assembling a cup seal for sealing a piston slidably moving in a bottomed-tubular cylinder main body to a seal groove formed in the cylinder main body in an annular shape includes inserting the cup seal into the cylinder main body while inclining the cup seal with respect to an axial direction of the cylinder main body, and assembling the cup seal to the seal groove by moving the cup seal to the seal groove in a state that a position of a center cored bar tool for defining an insertion limit of the cup seal with respect to the cylinder main body is aligned with the seal groove.
Claims19
A seal assembling method of a master cylinder for assembling a cup seal for sealing a piston slidably moving in a bottomed-tubular cylinder main body to a seal groove formed in the cylinder main body in an annular shape, the seal assembling method of the master cylinder comprising:
- inserting the cup seal into the cylinder main body while inclining the cup seal with respect to an axial direction of the cylinder main body and;
- and
- assembling the cup seal to the seal groove by moving the cup seal to the seal groove in a state that a position of a center cored bar tool for defining an insertion limit of the cup seal with respect to the cylinder main body is aligned with the seal groove.
A seal assembling method of a master cylinder for assembling a cup seal for sealing a piston slidably moving in a bottomed-tubular cylinder main body to a seal groove formed in the cylinder main body in an annular shape, the seal assembling method of the master cylinder comprising:
- inserting a center cored bar tool for defining an insertion limit of the cup seal into the cylinder main body;
- moving the cup seal in a direction toward the seal groove by an insertion jig in a state in which the cup seal is inclined with respect to an axial direction of the cylinder main body such that one side of the cup seal becomes a bottom section side of the cylinder main body;
- and
- moving the other side in the radial direction of the cup seal to an insertion limit of the cup seal after moving the one side in the radial direction of the cup seal to the insertion limit by the insertion jig.
A seal assembling apparatus of a master cylinder for assembling a cup seal for sealing a piston slidably moving in a bottomed-tubular cylinder main body to a seal groove formed in the cylinder main body in an annular shape, the seal assembling apparatus of the master cylinder comprising:
- a center cored bar tool that is capable of being inserted into the cylinder main body and defining an insertion limit of the cup seal;
- and
- an insertion jig movably installed at an outer circumferential side of the center cored bar tool in an axial direction of the center cored bar tool, and configured to move the cup seal in a direction toward the seal groove in a state in which the cup seal is inclined with respect to the axial direction of the center cored bar tool such that one side in a radial direction of the cup seal becomes a bottom section side of the cylinder main body,
- wherein the insertion jig moves the other side in the radial direction of the cup seal to the insertion limit after the one side in the radial direction of the cup seal is moved to the insertion limit of the cup seal.
Dependencies are inferred from the claim text.