Chuck and tube joint
First Claim
Patent Images
1. A chuck assembly comprising:
- a first member;
a second member; and
a chuck comprising;
an annular ring portion into which at least said first member is inserted;
a first engaging portion which extends from said annular ring portion along a central axis of said annular ring portion and which engages with said first member;
a second engaging portion which extends from said annular ring portion along said central axis of said annular ring portion and which elastically engages with a recess of said second member; and
a three-dimensionally shaped portion on an end of said second engaging portion, said three-dimensionally shaped portion including a pair of plastically deformed expanded portions formed by plastically deforming a metal plate, and wherein a bent and folded intermediate portion defining a crease is formed between said pair of plastically deformed expanded portions, so that respective concavities of said pair of plastically deformed expanded portions face each other.
1 Assignment
0 Petitions
Accused Products
Abstract
A chuck includes an annular ring portion, a first engaging portion which extends along a central axis of the annular ring portion and which engages with the first tube joint member, and a second engaging portion which extends from the annular ring portion along the central axis of the annular ring portion and which elastically engages with a second tube joint member. A-three-dimensionally shaped portion, which is an end of the second engaging portion, includes a pair of expanded portions on a metal plate. The annular ring portion is formed by rounding the metal plate with both ends, which are not fixed to one another so that both ends are displaceable circumferentially.
67 Citations
18 Claims
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1. A chuck assembly comprising:
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a first member; a second member; and a chuck comprising; an annular ring portion into which at least said first member is inserted; a first engaging portion which extends from said annular ring portion along a central axis of said annular ring portion and which engages with said first member; a second engaging portion which extends from said annular ring portion along said central axis of said annular ring portion and which elastically engages with a recess of said second member; and a three-dimensionally shaped portion on an end of said second engaging portion, said three-dimensionally shaped portion including a pair of plastically deformed expanded portions formed by plastically deforming a metal plate, and wherein a bent and folded intermediate portion defining a crease is formed between said pair of plastically deformed expanded portions, so that respective concavities of said pair of plastically deformed expanded portions face each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tube joint comprising:
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a first tube joint member; a second tube joint member which is connectable to said first tube joint member; a sleeve which is attached to a connecting portion between said first and second tube joint members and which is provided to couple and uncouple said first and second tube joint members; a resilient member which urges said sleeve in a direction to couple said first and second tube joint members; and a chuck which engages said first tube joint member with said second tube joint member, wherein said chuck comprises; an annular ring portion into which said first tube joint member is inserted; a first engaging portion which extends from said annular ring portion along a central axis of said annular ring portion and which engages with said first tube joint member; and a second engaging portion which extends from said annular ring portion along said central axis of said annular ring portion and which elastically engages with said second tube joint member, wherein said annular ring portion is formed by rounding a metal plate so that both ends of said metal plate are disposed close to one another, and said both ends are not fixed to one another so that said both ends are displaceable in a circumferential direction, and wherein an end of said second engaging portion engages with a recess of said second tube joint member and forms a three-dimensionally shaped portion including a pair of plastically deformed expanded portions formed by plastically deforming a metal plate, and wherein a bent and folded intermediate portion defining a crease is formed between said pair of plastically deformed expanded portions so that respective concavities of said pair of plastically deformed expanded portions face each other. - View Dependent Claims (10, 11, 12, 13, 18)
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14. A tube joint comprising:
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a first tube joint member; a second tube joint member which is connectable to said first tube joint member; a sleeve which is attached to a connecting portion between said first and second tube joint members and which is provided to couple and uncouple said first and second tube joint members; a resilient member which urges said sleeve in a direction to couple said first and second tube joint members; and a chuck which engages said first tube joint member with said second tube joint member, wherein said chuck comprises; an annular ring portion into which said first tube joint member is inserted; a first engaging portion which extends from said annular ring portion along a central axis of said annular ring portion and which engages with said first tube joint member; and a second engaging portion which extends from said annular ring portion along said central axis of said annular ring portion and which elastically engages with said second tube joint member, wherein an end of said second engaging portion engages with a recess of said second tube joint member and forms a three-dimensionally shaped portion including a pair of plastically deformed expanded portions formed by plastically deforming a metal plate, and wherein a bent and folded intermediate portion defining a crease in said metal plate is formed between said pair of plastically deformed expanded portions, so that respective concavities of said pair of plastically deformed expanded portions face each other. - View Dependent Claims (15, 16, 17)
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Specification