Method and apparatus for effecting interference fit of two parts by accelerating the part or parts
AssigneeToyota Jidosha Kabushiki Kaisha
InventorShigemi Shioya
Life of this patent
Estimating the term…
Abstract
Method and apparatus for effecting an interference fit of two parts, wherein the two parts are held by a holding device such that the two parts are movable toward each other, and at least one of the two parts is accelerated by an accelerating device toward the other or each other in a direction that permits the interference fit, to give the at least one part a kinetic energy, for thereby achieving the interference fit of the two parts.
Claims27
A method of effecting an interference fit of two parts, wherein one of said two parts has a bore and the other part has a portion for said interference fit with said bore, said portion having a diameter larger than that of said bore before said interference fit, and wherein at least one of the two parts is accelerated toward the other in a direction that permits said interference fit, before said two parts contact with each other, to give said at least one part a kinetic energy, for thereby achieving said interference fit of said two parts.
A method of effecting an interference fit of two parts, wherein at least one of the two parts is accelerated toward the other in a direction that permits said interference fit to give said at least one part a kinetic energy for thereby achieving said interference fit of said two parts, and wherein said at least one part is guided by a guide passage with a predetermined clearance therebetween, and is supported in said guide passage without a contact with an inner surface of said guide passage.
A method of effecting an interference fit of a rigid portion of a first part and an elastic portion of a second part, wherein said second part is accelerated toward said first part and is thereby given a kinetic energy, and during a movement of said second part by said kinetic energy said elastic portion of said second part is subjected to deformation in a direction that permits an increase in an amount of clearance between said first and second part, said deformation being caused by application of a pressure of a pressurized fluid higher than an atmospheric pressure to a surface of said elastic portion of said second part which mates with a corresponding surface of said rigid portion of said first part, said interference fit being achieved by engagement of said rigid and elastic portions with each other before said elastic portion of said second part is freed from said deformation.
An apparatus for effecting an interference fit of two parts, wherein one of said two parts has a bore and the other part has a portion for said interference fit with said bore, said portion having a diameter larger than that of said bore before said interference fit, said apparatus comprising:
- a holding device for holding said two parts such that at least one of said two parts is movable toward the other in a direction that permits said interference fit;
- and
- an accelerating device for accelerating said at least one part held by said holding device, toward the other of said two parts or each other, before said two parts contact with each other, to give said at least one part a kinetic energy, for thereby achieving said interference fit of said two parts.
An apparatus for effecting an interference fit of two parts, comprising:
- a holding device for holding said two parts such that at least one of said two parts is movable toward the other in a direction that permits said interference fit:
- an accelerating device for accelerating said at least one part held by said holding device, toward the other of said two parts or each other, to give said at least one part a kinetic energy for thereby achieving said interference fit of said two parts;
- means for defining a guide passage for guiding said at least one part with a predetermined clearance therebetween;
- and
- a support mechanism for supporting said at least one part in said guide passage without a contact with on inner surface of said guide passage.
An apparatus for effecting an interference fit of a rigid portion of a first part and an elastic portion of a second part, comprising:
- a first holder device for holding said first part;
- a second holder device for holding said second part such that said second part is movable toward said first part held by said first holder device;
- an accelerating device for accelerating said second part held by said second holder device, toward said first part held by said first holder device;
- and
- means for defining a high-pressure chamber in which said second part is moved by said kinetic energy and in which said elastic portion of said second part is subjected to deformation in a direction that permits an increase in an amount of an clearance between said rigid and elastic portions of said first and second parts, said deformation being caused by application of a pressure of a pressurized fluid higher than an atmospheric pressure to a surface of said elastic portion of said second part which mates with a corresponding surface of said rigid portion of said first part, said interference fit being achieved by engagement of said rigid and elastic portions each other before said elastic portion is freed from said deformation.
Dependencies are inferred from the claim text.