Method and apparatus for effecting interference fit of two parts by accelerating one of the parts
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsShigemi Shioya, Wataru Fuwa
Life of this patent
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Abstract
Method and apparatus for effecting an interference fit of a first part and a second part, wherein a thrust force is applied to the second part in a direction toward the first part to thereby accelerate the second part for applying a kinetic energy to the second part to cause abutting contact of the second part with the first part for achieving the interference fit of the first and second parts, and wherein the initiation of acceleration of the second part by the thrust force is inhibited until the thrust force has been increased to a predetermined threshold, and is permitted when the thrust force has been increased to the predetermined threshold.
Claims15
A method of effecting an interference fit of a first part and a second part, comprising:
- a thrust force applying step of applying a thrust force to said second part in a direction toward said first part to thereby accelerate said second part for applying a kinetic energy to said second part to cause abutting contact of said second part with said first part for achieving said interference fit of said first and second parts;
- and
- an acceleration initiation inhibiting and permitting step of inhibiting initiation of acceleration of said second part by said thrust force until said thrust force has been increased to a predetermined threshold, and permitting said initiation of said acceleration when said thrust force has been increased to said predetermined threshold.
An apparatus for effecting an interference fit of a first part and a second part, comprising:
- a thrust force applying device for applying a thrust force to said second part in a direction toward said first part to thereby accelerate said second part for applying a kinetic energy to said second part to cause abutting contact of said second part with said first part for achieving said interference fit of said first and second parts;
- and
- an acceleration initiation inhibiting and permitting device for inhibiting initiation of acceleration of said second part by said thrust force until said thrust force has been increased to a predetermined threshold, and permitting said initiation of said acceleration when said thrust force has been increased to said predetermined threshold.
An apparatus for effecting an interference fit of a first part and a second part, comprising:
- a thrust force applying device for applying a thrust force to said second part in a direction toward said first part to thereby accelerate said second part for applying a kinetic energy to said second part to cause abutting contact of said second part with said first part for achieving said interference fit of said first and second parts;
- and
- an acceleration initiation inhibiting and permitting device for inhibiting initiation of acceleration of said second part by said thrust force until said thrust force has been increased to a predetermined threshold, and permitting said initiation of said acceleration when said thrust force has been increased to said predetermined threshold,
- wherein said acceleration initiation inhibiting and permitting device comprises (a) a movable member movable to an inhibiting position in which said movable member engages said second part to inhibit said initiation of said acceleration of said second part, and a permitting position in which said movable member is spaced apart from said second part to permit said initiation of said acceleration of said second part, and (b) a moving device for moving said movable member to said inhibiting position until said thrust force has been increased to said predetermined threshold, and to said permitting position when said thrust force has been increased to said predetermined threshold.
Dependencies are inferred from the claim text.