Pressure passage change-over device

Claim 2

A pressure passage change-over device comprising: a support member having holes for forming a part of said pressure passage; a plurality of electromagnetic change-over valves mounted on said support member; an end member mounted on said support member at the opposite side of said change-over valves; said end member being provided with external connection ports and pressure passages communicating with said holes of said support member; and means inclUding said valves for selectively communicating said ports with each other via said passages, holes and valves and closing the communication therebetween according to the operation of said electromagnetic change-over valves.

Claim 3

A pressure passage change-over device as in claim 1, wherein said electromagnetic change-over valves are mounted on said support member together with said end member by through bolts.

Claim 4

A pressure passage change-over device as in claim 1, including a cup-shaped casing secured to said support member to cover said electromagnetic change-over valves.

Claim 5

A pressure passage change-over device comprising: a support member having holes and pressure passages communicating with said holes; a plurality of electromagnetic change-over valves mounted on said support member; an end member mounted on said support member at the opposite side of said change-over valves; said end member being provided with external connection ports; and means including said valves for selectively communicating said ports with each other via said passages, holes and valves and closing the communication therebetween according to the operation of said electromagnetic change-over valves.

Claim 6

A pressure passage change-over device comprising: a support member having holes and pressure passages communicating with said holes; a plurality of electromagnetic change-over valves mounted on said support member; an end member mounted on said support member at the opposite side of said change-over valves; said end member being provided with external connection ports; and means including said valves for selectively communicating said ports with each other via said passages, holes and valves and closing the communication therebetween according to the operation of said electromagnetic change-over valves.

Claim 7

A pressure passage change-over device comprising: a support member having holes for forming a part of said pressure passage; a plurality of electromagnetic change-over valves mounted on said support member; an end member secured to said support member at the opposite side of said change-over valves; pad means located between said support member and end member for preventing pressure leakage; said end member being provided with external connection ports; said pad means having pressure passages communicating with said holes of said support member; and means including said valves for selectively communicating said ports with each other via said passages, holes and valves and closing the communication therebetween according to the operation of said electromagnetic change-over valves.

Claim 8

A pressure passage change-over device comprising: a support member having holes for forming a part of said pressure passage; a plurality of electromagnetic change-over valves mounted on said support member; an end member secured to said support member at the opposite side of said change-over valves; pad means located between said support member and end member for preventing pressure leakage; said end member being provided with external connection ports; said pad means having pressure passages communicating with said holes of said support member; and means including said valves for selectively communicating said ports with each other via said passages, holes and valves and closing the communication therebetween according to the operation of said electromagnetic change-over valves.

Claim 9

A pressure passage change-over device comprising: an end support means having plural sections of holes formed on one surface thereof, each of said plural sections having first, second and third holes, and plural sets of external connection ports on the other surface thereof, each of said plural sets having a pair of first and second external connection ports, said plural sets being of the same number of said plural sections and being disposed corresponding thereto, said first external connection port of each of said plural sets communicating with the first and third holes of the corresponding one of said plural sections through a divaricated pressure passage formed in said end support means, said second external connection port of each of said plural sets communicating with the second hole of the corresponding one of said plural sections through a pressure passage provided through said end support means; and a plurality of electromagnetic change-over valves, of the same number as said plural sections, mounted on said one surface of said end support means so as to correspond to said respective plural sections, each of said change-over valves being provided with first, second and third ports, the first and second ports and the third port of each of said change-over valves being in communication with the first and second holes of the corresponding one of said plural sections and the third hole of another one of said plural sections respectively; the arrangement being such that communication between the pair of first and second external connection ports of each of said plural sets through the first and second ports of the corresponding change-over valve is changed into communication between the second external connection port of each of said plural sets and the first external connection port of the other one of said plural sets through the second and third ports of the change-over valve corresponding to said second eXternal connection port when said electromagnetic change-over valves are operated.

Claim 10

A pressure passage change-over device comprising: an end support means having plural sections of holes formed on one surface thereof, each of said plural sections having first, second and third holes, and plural sets of external connection ports on the other surface thereof, each of said plural sets having a pair of first and second external connection ports, said plural sets being of the same number of said plural sections and being disposed corresponding thereto, said first external connection port of each of said plural sets communicating with the first and third holes of the corresponding one of said plural sections through a divaricated pressure passage formed in said end support means, said second external connection port of each of said plural sets communicating with the second hole of the corresponding one of said plural sections through a pressure passage provided through said end support means; and a plurality of electromagnetic change-over valves, of the same number as said plural sections, mounted on said one surface of said end support means so as to correspond to said respective plural sections, each of said change-over valves being provided with first, second and third ports, the first and second ports and the third port of each of said change-over valves being in communication with the first and second holes of the corresponding one of said plural sections and the third hole of another one of said plural sections respectively; the arrangement being such that communication between the pair of first and second external connection ports of each of said plural sets through the first and second ports of the corresponding change-over valve is changed into communication between the second external connection port of each of said plural sets and the first external connection port of the other one of said plural sets through the second and third ports of the change-over valve corresponding to said second eXternal connection port when said electromagnetic change-over valves are operated.

Claim 11

A pressure passage change-over device according to claim 6, said device further comprising a cup-shaped casing secured to said end support means to cover said electromagnetic change-over valves.

Claim 12

A pressure passage change-over device according to claim 6, said end support means comprising a support member including said one surface thereof and an end member including said other surface thereof, said divaricated pressure passages being formed in at least one of said support member and end member.

Claim 13

A pressure passage change-over device according to claim 8, said respective electromagnetic change-over valves are mounted on said support member together with said end member by through bolts.

Claim 14

A pressure passage change-over device according to claim 8, said device further comprising a cup-shaped casing secured to said support member to cover said electromagnetic change-over valves.

Claim 15

A pressure passage change-over device according to claim 8, said divaricated pressure passages being formed in said support member.

Claim 16

A pressure passage change-over device according to claim 8, said divaricated pressure passages being formed in said end member.

Claim 17

A pressure passage change-over device according to claim 8, said divaricated pressure passages being formed extending over both said support and end members.

Claim 18

A pressure passage change-over device according to claim 6, said end support means comprising a support member including said one surface thereof, an end member including said other surface thereof, and a pad means, located between said support and end members, for preventing pressure leakage, said divaricated pressure passages being formed in at least one of said support member, end member and pad means.

Claim 19

A pressure passage change-over device according to claim 14, said respective electromagnetic change-over valves are mounted on said support member together with said end member and pad means by through bolts.

Claim 20

A pressure passage change-over device according to claim 14, said device further comprising a cup-shaped casing secured to said support member to cover said electromagnetic change-over valves.

Claim 21

A pressure passage change-over device according to claim 14, said divaricated pressure passages being formed in said support member.

Claim 22

A pressure passage change-over device according to claim 14, said divaricated pressure passages being formed in said pad means.

Claim 23

A pressure passage change-over device according to claim 14, said divaricated pressure passages being formed in said end member.

Claim 24

A pressure passage change-over device according to claim 14, said divaricated pressure passages being formed extending over both said support member and pad means.

Claim 25

A pressure passage change-over device according to claim 14, said divaricated pressure passages being formed extending over both said pad means and end member.

Claim 26

A pressure passage change-over device according to claim 14, said divaricated pressure passages being formed extending over said support member, pad means and end member.

Claim 27

A pressure passage change-over device comprising: a support member having holes grouped into plural sections for forming a part of said pressure passage, each of said plural sections having first, second and third holes; a plurality of electromagnetic change-over valves of the same number as said plural sections, said change-over valves being mounted on said support member so as to correspond to said respective plural sections, each of said change-over valves being provided with first, second and third ports, the first and second ports and the third port of each of said change-over valves communicating with the first and second holes of the corresponding one of said plural sections and the third hole of another one of said plural sections respectively; and an end member mounted on said support member at the opposite side of said change-over valves, said end member being provided with plural sets of external connection ports, said plural sets being of the same number of said plural sections and being disposed correspondingly thereto, each of said plural sets having a pair of first and second external connection ports, the first external connection ports of each of said plural sets communicating with the first and third holes of the corresponding one of said plural sections through a pair of pressure passages provided through said end member, the second external connection port of each of said plural sets communicating with the second hole of the corresponding one of said plural sections through a pressure passage provided through said end member, whereby the communication between the pair of first and second external connection ports of each of said plural sets through the first and second ports of the corresponding change-over valve is changed into the communication between the second external connection port of each of said plural sets and the first external connection port of the other one of said plural sets through the second and third ports of the change-over valve corresponding to said second external connection port when said electromagnetic change-over valves are energized.

Claim 28

A pressure passage change-over device comprising: a support member having holes grouped into plural sections for forming a part of said pressure passage, each of said plural sections having first, second and third holes; a plurality of electromagnetic change-over valves of the same number as said plural sections, said change-over valves being mounted on said support member so as to correspond to said respective plural sections, each of said change-over valves being provided with first, second and third ports, the first and second ports and the third port of each of said change-over valves communicating with the first and second holes of the corresponding one of said plural sections and the third hole of another one of said plural sections respectively; and an end member mounted on said support member at the opposite side of said change-over valves, said end member being provided with plural sets of external connection ports, said plural sets being of the same number of said plural sections and being disposed correspondingly thereto, each of said plural sets having a pair of first and second external connection ports, the first external connection ports of each of said plural sets communicating with the first and third holes of the corresponding one of said plural sections through a pair of pressure passages provided through said end member, the second external connection port of each of said plural sets communicating with the second hole of the corresponding one of said plural sections through a pressure passage provided through said end member, whereby the communication between the pair of first and second external connection ports of each of said plural sets through the first and second ports of the corresponding change-over valve is changed into the communication between the second external connection port of each of said plural sets and the first external connection port of the other one of said plural sets through the second and third ports of the change-over valve corresponding to said second external connection port when said electromagnetic change-over valves are energized.

Claim 29

A pressure passage change-over device comprising: a support member having a plurality of holes; a plurality of electromagnetic change-over valves mounted on said support member and connected to said holes of said support member for forming a plurality of pressure passages and for selectively opening and closing the communication of each of said passages; and an end member having a plurality of external connection ports and mounted on said support member at the opposite side of said change-over valves, said external connection ports communicating with said holes of said support member through respective passages provided through said end member, whereby each of said external connection ports communicates with another external connection port and predeterminedly changes the mate of the communication according to the operation of said electromagnetic changeover valves.

Claim 30

A pressure passage change-over device comprising: a support member having a plurality of holes; a plurality of electromagnetic change-over valves mounted on said support member and connected to said holes of said support member for forming a plurality of pressure passages and for selectively opening and closing the communication of each of said passages; and an end member having a plurality of external connection ports and mounted on said support member at the opposite side of said change-over valves, said external connection ports communicating with said holes of said support member through respective passages provided through said end member, whereby each of said external connection ports communicates with another external connection port and predeterminedly changes the mate of the communication according to the operation of said electromagnetic changeover valves.

Claim 31

A pressure passage change-over device comprising: a support member having holes for forming a part of said pressure passage; a plurality of electromagnetic change-over valves mounted on said support member and connected to said holes of said support member for forming a plurality of pressure passages and for selectively opening and closing the communication of each of said passages; an end member having a plurality of external connection ports and secured to said support member at the opposite side of said change-over valves; and pad means for preventing pressure leakage, said pad means having pressure passages for connecting said external connection ports with said holes of said support member through respective pressure passages provided through said end member, whereby each of said external connection ports communicates with another external connection port and predeterminedly changes the mate of the communication according to the operation of said electromagnetic change-over valves.

Claim 32

A pressure passage change-over device comprising: a support member having holes for forming a part of said pressure passage; a plurality of electromagnetic change-over valves mounted on said support member and connected to said holes of said support member for forming a plurality of pressure passages and for selectively opening and closing the communication of each of said passages; an end member having a plurality of external connection ports and secured to said support member at the opposite side of said change-over valves; and pad means for preventing pressure leakage, said pad means having pressure passages for connecting said external connection ports with said holes of said support member through respective pressure passages provided through said end member, whereby each of said external connection ports communicates with another external connection port and predeterminedly changes the mate of the communication according to the operation of said electromagnetic change-over valves.