IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0550685
(2009-08-31)
|
등록번호 |
US-8398070
(2013-03-19)
|
우선권정보 |
JP-2009-036878 (2009-02-19) |
발명자
/ 주소 |
- Todoriki, Toru
- Mitsuya, Yusuke
- Naruoka, Yoshihiko
|
출원인 / 주소 |
|
대리인 / 주소 |
Pillsbury Winthrop Shaw Pittman, LLP
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
5 |
초록
▼
A valve unit which circulates and blocks air has a first block connected to upstream suction tubes, a second block facing this first block and connected to downstream suction tubes, a shield plate disposed in a space S between the first block and the second block, and a motor which rotates this shie
A valve unit which circulates and blocks air has a first block connected to upstream suction tubes, a second block facing this first block and connected to downstream suction tubes, a shield plate disposed in a space S between the first block and the second block, and a motor which rotates this shield plate. The shield plate is provided with a connection hole which connects the upstream suction tube to the downstream suction tube, and a connection hole which connects the upstream suction tube to the downstream suction tube.
대표청구항
▼
1. A valve unit which switches an opened state where a first flow path is connected to a second flow path and a closed state where the connection of the first flow path and the second flow path is blocked, the valve unit comprising: a first member having a first facing surface which faces the second
1. A valve unit which switches an opened state where a first flow path is connected to a second flow path and a closed state where the connection of the first flow path and the second flow path is blocked, the valve unit comprising: a first member having a first facing surface which faces the second flow path, and a first hole provided with one end connected to the first flow path and the other end exposed to the first facing surface;a second member having a second facing surface which faces the first facing surface via a space, and a second hole provided with one end connected to the second flow path and the other end facing the first hole and exposed to the second facing surface;a shield plate rotatably disposed in the space along the first and second facing surfaces, having a plurality of connection holes away from the rotation center thereof each of which are configured to connect the first hole to the second hole during rotation and to connect the first hole to the second hole and block the connection thereof; anda rotator which rotates the shield plate between the opened state where the connection holes coincide with the first and second holes and the closed state where the connection of the first and second holes is blocked,wherein a plurality of sets of the first and second flow paths are provided, the first and second members having a plurality of sets of the first and second holes corresponding to the plurality of the sets of the first and second flow paths, each set of first and second holes is provided at a position with different distances from the rotational center of the shield plate,wherein the plurality of connection holes of the shielding plate are configured such that each of the plurality of connection holes are equidistantly disposed on different circumferences corresponding to each set of the first and second holes. 2. A paper sheet takeout device comprising: a throwing section into which a plurality of paper sheets are loaded in a stacked state;a takeout member having adsorption holes and running along a paper sheet at one end in a superimposing direction of the paper sheets thrown into the throwing section;a single negative pressure chamber which sucks the adsorption holes from the backside of the takeout member to generate a negative pressure on the surface of the takeout member, thereby adsorbing the paper sheet at the one end onto the surface of the takeout member;a first pipe configured to suck air from the single negative pressure chamber;a second pipe configured to feed air into the single negative pressure chamber; anda single valve unit provided halfway in the first pipe and the second pipe, the single valve unit switches to a first state where the valve unit communicates with the first pipe while blocking the second pipe and a second state where the valve unit communicates with the second pipe while blocking the first pipe,the single valve unit comprising: a first member having a first facing surface, a first hole provided with one end connected to the first pipe and the other end exposed to the first facing surface, and a second hole provided with one end connected to the second pipe and the other end exposed to the first facing surface;a second member having a second facing surface which faces the first facing surface via a space, a third hole provided with one end connected to the first pipe and the other end facing the first hole and exposed to the second facing surface, and a fourth hole provided with one end connected to the second pipe and the other end facing the second hole and exposed to the second facing surface;a shield plate rotatably disposed in the space along the first and second facing surfaces, and having a first connection hole away from the rotation center thereof which connects the first hole to the third hole during rotation and a second connection hole away from the rotation center thereof which connects the second hole to the fourth hole during the rotation; anda rotator which rotates the shield plate at the first state where the first connection hole coincides with the first and third holes and the second state where the second connection hole coincides with the second and fourth holes. 3. The paper sheet takeout device according to claim 2, wherein a front edge in rotational direction of the first and second connection holes of the shield plate extends along a radial direction of the shield plate. 4. The paper sheet takeout device according to claim 2, wherein each of the first and second holes are disposed at a position with different distances from the rotation center thereof. 5. The paper sheet takeout device according to claim 2, further comprising a single pump having an exhaust port connected to the second pipe and a suction port connected to the first pipe. 6. A valve unit, provided with a plurality of sets of first and second flow paths, and configured to switch between an opened state where the first flow path is connected to the second flow path and a closed state where the connection of the first flow path and the second flow path is blocked, the valve unit comprising: a first member having a first facing surface which faces the second flow path, and a plurality of sets of first holes provided with one end connected to each of the plurality of sets of the first flow paths and the other end exposed to the first facing surface;a second member having a second facing surface which faces the first facing surface via a space, and a plurality of sets of second holes provided with one end connected to each of the plurality of sets of the second flow paths and the other end facing the first hole and exposed to the second facing surface;a shield plate, disposed in the space rotatably along the first and second facing surfaces, having a plurality of connection holes provided at a position with different distances from the rotation center thereof which connects the first hole to the second hole during rotation, and configured to connect the first hole to the second hole and block the connection thereof; anda rotator which rotates the shield plate between the opened state where the connection hole coincides with the first and second holes and the closed state where the connection of the first and second holes is blocked,wherein each of the connection holes are shaped only to be connected to a single first hole and a single second hole. 7. A paper sheet takeout device comprising: a throwing section into which a plurality of paper sheets are loaded in a stacked state;a takeout member having adsorption holes and running along a paper sheet at one end in a superimposing direction of the paper sheets thrown into the throwing section;a single negative pressure generating section which sucks the adsorption holes from the backside of the takeout member to generate a negative pressure on the surface of the takeout member, thereby adsorbing the paper sheet at the one end onto the surface of the takeout member;a first pipe configured to suck air from the single negative pressure generating section;a second pipe configured to feed air into the single negative pressure generating section; anda single valve unit provided halfway in the first pipe and the second pipe, the single valve unit provided with a plurality of sets of first and second flow paths, and configured to switch between an opened state where the first flow path is connected to the second flow path and a closed state where the connection of the first flow path and the second flow path is blocked,the valve unit including: a first member having a first facing surface which faces the second flow path, and a plurality of sets of the first holes provided with one end connected to each of the plurality of sets of the first flow paths and the other end exposed to the first facing surface;a second member having a second facing surface which faces the first facing surface via a space, and a plurality of sets of the second holes provided with one end connected to each of the plurality of sets of the second flow paths and the other end facing the first hole and exposed to the second facing surface;a shield plate rotatably disposed in the space along the first and second facing surfaces, having a plurality of connection holes provided at a position with different distances from the rotation center thereof which connects the first hole to the second hole during rotation, and configured to connect the first hole to the second hole and block the connection thereof; anda rotator which rotates the shield plate between the opened state where the connection hole coincides with the first and second holes and the closed state where the connection of the first and second holes is blocked,wherein each of the connection holes are shaped only to be connected to the single first hole and the single second hole. 8. The paper sheet takeout device according to claim 7, wherein each the plurality of connection holes are configured such that the connection holes are equidistantly disposed along a different circumference centered around a rotational center of the shielding plate. 9. The paper sheet takeout device according to claim 7, further comprising a single pump having an exhaust port connected to the second pipe and a suction port connected to the first pipe. 10. The paper sheet takeout device according to claim 2, wherein the first and second connecting holes are plurally and equidistantly disposed along a same circumference centered around a rotational center of the shielding plate.
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