[특허]Shock absorbing device for moving body

Nifco Inc.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Shock absorbing device for moving body

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16F-009/50
미국특허분류(USC)	267/064.15; 267/034; 016/049; 016/051
출원번호	US-0180576 (2005-07-14)
등록번호	US-7377500 (2008-05-27)
우선권정보	JP-2003-433572(2003-12-26); JP-2004-213528(2004-07-21)
발명자 / 주소	Tomiji,Katsuyasu Tsuchiya,Takefumi
출원인 / 주소	Nifco Inc.
대리인 / 주소	Kanesaka,Manabu
인용정보	피인용 횟수 : 5 인용 특허 : 22

초록
▼

A shock absorbing device uses a damper including a cylinder enclosing a viscous fluid; a piston rod; and a piston dividing the interior of the cylinder in two axially separated parts. The piston is connected to the piston rod and has an orifice communicating the two parts. The piston includes an inner member integrally connected with the piston rod, and an outer member disposed about an outer perimeter of the inner member and configured to be axially movable with respect to the inner member. The inner and outer members are configured to define a gap therebetween through which the viscous fluid can flow, and to be biased away from each other by a spring disposed therebetween. The inner and outer members are arranged so that the gap is reduced as the amount that the inner member protrudes into the outer member increases, to thereby define a variable orifice.

대표
청구항
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What is claimed is: 1. A combination comprising: at least one shock absorbing device, a moving body, and a movement restricting part, wherein said at least at least one shock absorbing device comprises a cylinder enclosing a viscous fluid, a piston rod, a piston slidably situated in the cylinder to divide an interior of the cylinder in two axially separated parts and connected to the piston rod, said piston including an orifice communicating the two parts, an inner member integrally connected with the piston rod, and an outer member disposed about an outer perimeter of the inner member to be axially movable with respect to the inner member, said inner and outer members being arranged to define a gap therebetween through which the viscous fluid can flow so that the gap is reduced as an amount that the inner member protrudes into the outer member increases to thereby form a variable orifice, and a spring disposed between the inner and outer members to urge the inner and outer members away from each other, said movement restricting part restricts movement of the moving body by contacting with the moving body, one of the cylinder and the piston rod being fixed to the moving body such that the other of the cylinder and the piston rod slightly projects outwardly from the moving body, said moving body is at least one of a toilet cover and a toilet seat, and said movement restricting part is at least one of a toilet main body and the toilet seat contacting the toilet cover, and a plurality of said shock absorbing devices is arranged to be spaced apart from each other, and is attached to said at least one of the toilet cover and the toilet seat as the moving body without connecting to the movement restricting part to absorb shocks by rotational movements of the toilet cover and the toilet seat against the movement restricting part. 2. A combination according to claim 1, wherein the orifice is a fixed orifice and is formed in the outer member so as to fluidly communicate with the gap defined between the inner and outer members. 3. A combination according to claim 2, wherein the fixed orifice and the variable orifice are arranged so that the viscous fluid flows sequentially through the orifice and the gap. 4. A combination according to claim 1, wherein said at least one shock absorbing device further comprises a retainer formed at one inner side of the cylinder through which the cylinder rod passes, and an accumulator disposed in the retainer. 5. A combination according to claim 4, wherein said at least one shock absorbing device further comprises a second spring disposed in the cylinder at a side opposite to the retainer to move the piston toward the retainer. 6. A combination comprising: at least one shock absorbing device, a moving body, and a movement restricting part, wherein said at least at least one shock absorbing device comprises a cylinder enclosing a viscous fluid, a piston rod, a piston slidably situated in the cylinder to divide an interior of the cylinder in two axially separated parts and connected to the piston rod, said piston including an orifice communicating the two parts, an inner member integrally connected with the piston rod, and an outer member disposed about an outer perimeter of the inner member to be axially movable with respect to the inner member, said inner and outer members being arranged to define a gap therebetween through which the viscous fluid can flow so that the gap is reduced as an amount that the inner member protrudes into the outer member increases to thereby form a variable orifice, and a spring disposed between the inner and outer members to urge the inner and outer members away from each other, said movement restricting part restricts movement of the moving body by contacting with the moving body, one of the cylinder and the piston rod being fixed to one of the moving body and the movement restricting part such that the other of the cylinder and the piston rod slightly projects outwardly therefrom without connecting to the other of the moving body and the movement restricting part, said moving body is a drawer, said movement restricting part is a housing with an opening for receiving the drawer, and said at least one shock absorbing device is attached to the housing to absorb shock by movement of the drawer. 7. A combination according to claim 6, wherein said drawer has projecting parts projecting laterally outwardly from the opening, and the housing has two ends outside the opening, one shock absorbing device being installed at each of the two ends to face outwardly to contact each of the projecting parts. 8. A combination according to claim 7, wherein another shocking absorbing device is installed at each of the two ends to face inwardly of the housing to contact stoppers of a back board of the drawer. 9. A combination comprising: at least one shock absorbing device, a moving body, and a movement restricting part, wherein said at least at least one shock absorbing device comprises a cylinder enclosing a viscous fluid, a piston rod, a piston slidably situated in the cylinder to divide an interior of the cylinder in two axially separated parts and connected to the piston rod, said piston including an orifice communicating the two parts, an inner member integrally connected with the piston rod, and an outer member disposed about an outer perimeter of the inner member to be axially movable with respect to the inner member, said inner and outer members being arranged to define a gap therebetween through which the viscous fluid can flow so that the gap is reduced as an amount that the inner member protrudes into the outer member increases to thereby form a variable orifice, and a spring disposed between the inner and outer members to urge the inner and outer members away from each other, said movement restricting part restricts movement of the moving body by contacting with the moving body, one of the cylinder and the piston rod being fixed to one of the moving body and the movement restricting part such that the other of the cylinder and the piston rod slightly projects outwardly therefrom, said movement restricting part is a frame, the moving body is a sliding window, and said at least one shock absorbing device is attached to the frame without connecting to the sliding window to absorb shock by movement of the sliding window. 10. A combination comprising: at least one shock absorbing device, a moving body, and a movement restricting part, wherein said at least at least one shock absorbing device comprises a cylinder enclosing a viscous fluid, a piston rod, a piston slidably situated in the cylinder to divide an interior of the cylinder in two axially separated parts and connected to the piston rod, said piston including an orifice communicating the two parts, an inner member integrally connected with the piston rod, and an outer member disposed about an outer perimeter of the inner member to be axially movable with respect to the inner member, said inner and outer members being arranged to define a gap therebetween through which the viscous fluid can flow so that the gap is reduced as an amount that the inner member protrudes into the outer member increases to thereby form a variable orifice, and a spring disposed between the inner and outer members to urge the inner and outer members away from each other, said movement restricting part restricts movement of the moving body by contacting with the moving body, one of the cylinder and the piston rod being fixed to one of the moving body and the movement restricting part such that the other of the cylinder and the piston rod slightly projects outwardly therefrom, said movement restricting part is a frame, said moving body comprises folding doors, and said at least one shock absorbing device is attached to one of the folding doors without connecting to an abutting part thereto to absorb shock by movement of the folding doors.

이 특허에 인용된 특허 (22)

이 특허를 인용한 특허 피인용횟수: 5

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Shock absorbing device for moving body

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Shock absorbing device for moving body

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이 특허에 인용된 특허 (22)

이 특허를 인용한 특허 피인용횟수: 5

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