JP3155560B2 - Manifold valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manifold valve, and more particularly to a technique effective when applied to, for example, a manifold valve having a valve having an operating portion coaxially connected to one end of a main valve portion.

[0002]

2. Description of the Related Art For example, as a valve having an operating portion coaxially coupled to one end of a main valve portion, the operating portion is formed by a solenoid portion, a driving piston portion, or a solenoid portion and a driving piston portion. However, the width of the main valve and the operating portion in the cross axis direction is the same as each other.

In addition, a first driving piston section in which a first driving piston having a large pressure receiving area is accommodated, and a second driving piston in which a second driving piston smaller than the pressure receiving area of the first driving piston are accommodated. A drive piston portion, and a main shaft that is interposed between the first drive piston portion and the second drive piston portion and is housed in an internal shaft hole;
A main shaft portion for switching a flow path by displacing the main shaft along the axial direction by operating forces of the first driving piston and the second driving piston, wherein the first driving piston portion and the second driving piston 2. Description of the Related Art There is known a valve in which a main valve is formed by coaxially connecting a main part and the main shaft part to each other.

[0004] A manifold valve in which a plurality of such valves are connected to a manifold base and mounted is known.

[0005]

By the way, in order to reduce the size and space of the manifold valve as described above, it is necessary to reduce the size of each valve, in particular, to reduce the width of each valve in the axial direction. Is valid, but
If the width of the valve is reduced, the width of the operation unit is also reduced, so that the following problems occur.

That is, for example, in a valve in which the operating portion is formed by a solenoid portion, the power consumption and the temperature rise increase, the control flow rate decreases, the response time is delayed, and the operation is unstable due to the reduction of the winding space. There are problems such as conversion.

Further, in a valve, such as an indirect-acting type valve, whose operating part is formed by a driving piston part, the minimum operating pressure is increased and the response time is delayed by reducing the pressure receiving area of the driving piston. This causes problems such as unstable operation.

[0008] Such a problem is caused by the first problem described above.
This also occurs with valves having a drive piston, a second drive piston, and the like.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a valve capable of reducing the size and space of the manifold valve without reducing the characteristics of the operation section, and a manifold valve using the same.

The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0011]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

That is, the manifold valve according to the present invention includes a manifold base in which a common input flow path and a discharge flow path are formed, and a main shaft that is axially displaceable and accommodates the input flow passage by displacement of the main shaft. A main valve portion having a small width having an output port switched to and communicating with the discharge flow path, and an operating portion having a larger width than the main valve portion provided with a piston for operating the main shaft, A plurality of valves mounted on the manifold base, wherein the operation portion having a large width is located on both ends of the manifold base, and the main valve portion having a small width is located on an inner portion of the manifold base. Then, the valve is mounted on the manifold base in an overlapping manner.

[0013] The manifold valve according to the present invention is characterized in that the operating section has a solenoid section for opening and closing the piston.

[0014] The manifold valve according to the present invention has an end on the opposite side to the piston in the main valve portion,
A spring member for urging the piston is provided.

[0015] The manifold valve of the present invention is provided at an end of the main valve portion opposite to the piston.
A small-diameter piston having an outer diameter smaller than that of the piston is provided.

A manifold valve according to the present invention accommodates a manifold base in which a common input flow path and a discharge flow path are formed, and accommodates a main shaft so as to be displaceable in an axial direction. A small-width portion having an output port that is switched to and communicated with the discharge flow path, and a large-width portion provided with a large-diameter piston for operating the main shaft are mounted on one surface of the manifold base. A plurality of main valves, a pilot valve that opens and closes a pilot flow path to operate the main shaft, and a solenoid that is coaxially coupled to the pilot valve and that opens and closes the pilot valve. A plurality of operation units mounted on opposite surfaces, and a portion having a large width dimension of the main valve is provided on both sides of the manifold base. Is positioned on the section side, characterized in that a small portion of the width of the main valve mounted on the manifold base of the manifold base by overlapping the main valve is located inside unit.

[0017]

According to the above-mentioned manifold valve of the present invention, the operation portion having a large width is located at both ends of the manifold base, and the main valve portion having a small width is located inside the manifold base. Are mounted on the manifold base so that a plurality of valves can be mounted in a limited space, so that the manifold valve itself can be reduced in size and space can be saved.

According to the above-mentioned manifold valve of the present invention, a plurality of main valves having a small width portion and a large width portion are mounted on one surface of the manifold base, and the pilot valve and the solenoid portion are mounted. The operation part having the main valve is mounted on the opposite surface of the manifold base, and the wide part of the main valve is located at both ends of the manifold base, and the small part of the main valve is located inside the manifold base. , And the main valve is mounted on the manifold base with the main valve overlapped. Therefore, the manifold base can be made smaller, and the size and space of the manifold valve can be reduced.

[0019]

[0020]

[0021]

1 is a sectional view showing a valve according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. 3 (A) shows a manifold valve using the valve. FIG. 3B is a front view of FIG. 3A.

The valve 1 of the present embodiment is applied to a directional control valve for fluid pressure of compressed air or the like, and its operation system is an electromagnetic valve of an indirect operation system.

The valve 1 is constituted by a square pillar-shaped operating part 3 coaxially connected to one end of a square pillar-shaped main valve part 2. The operating force of the operating part 3 causes the flow path of the main valve part 2 to flow. The structure can be switched.

As shown in FIG. 2, the dimension in the height direction, that is, the width W _{1, which} is a direction perpendicular to the one cross axis direction of the main valve portion 2, that is, the axis, is the height direction of the operation portion 3. The width W ₂ is the same as the width W ₂ of the main valve portion 2, but the width W ₃ is the same as the width W ₂ of the main valve portion 2 as shown in FIG. is smaller formed is approximately 1/2 of the dimension, i.e. the width W _4.

As shown in FIG. 2, the width W of the main valve portion 2 is
_An input port 4, a pair of discharge ports 5A and 5B, and a pair of output ports 6A and 6B are formed on both outer surfaces on the _three sides, respectively, and these ports communicate with a shaft hole 7 in the main valve portion 2. ing.

A main shaft 8 is provided in the shaft hole 7 so as to be displaceable along the axial direction. A spring 9 is accommodated in the outer end side of the shaft hole 7 to urge the main shaft 8 toward the operation section 3. are doing.

A seal member 1 is provided on the inner peripheral surface of the shaft hole 7.
When the large diameter portion of the main shaft 8 comes into contact with or separates from the seal member 10, the flow path of the main valve portion 2 is switched.

On the other hand, the operation section 3 is constituted by a drive piston section 11 and a solenoid section 14 which are arranged coaxially with each other.

In the cylinder chamber 12 of the drive piston portion 11, a drive piston 13 in contact with the inner end side of the main shaft 8 is accommodated so as to be displaceable along the axial direction. Are displaced along the axial direction of the shaft hole 7.

The solenoid portion 14 includes a movable core 15 housed so as to be displaceable along the axial direction, and a movable core 1
The fixed core 16 to and from which the core 5 moves and the movable core 15 are connected to the introduction path 1.
The fixed iron core 16 is provided with a discharge port 21 that is opened and closed by the movable iron core 15 being brought into contact with or separated from the spring 19, which is biased toward the supply path 7 and the supply path 18, and a solenoid coil 20. In addition, the supply path 18
It is set up on the outer surface of the operation unit 3.

The valve 1 having such a structure is shown in FIG.
As shown in FIG. 2, when the solenoid portion 14 is not excited, the movable core 15 is displaced toward the main valve portion 2 by the urging force of the spring 19, so that the supply path 18 is closed and the discharge port Since the opening 21 is open, the introduction of the working fluid pressure such as the compressed air supplied to the supply passage 18 into the cylinder chamber 12 is stopped, and the working fluid pressure remaining in the cylinder chamber 12 is introduced into the introduction passage. It is discharged from the discharge port 21 to the outside through 17.

In this state, when the solenoid portion 14 is excited, the movable iron core 15 is displaced toward the fixed iron core 16 against the urging force of the spring 19, so that the supply path 1
8 is opened and the discharge port 21 is closed, so that a working fluid pressure such as compressed air supplied to the supply path 18 is supplied through the introduction path 17 to the cylinder chamber 12 on the solenoid portion 14 side.
And the drive piston 13 is displaced toward the main valve portion 2, and the main shaft 8 is displaced against the urging force of the spring 9 in conjunction with this displacement. A structure in which the output port 6B, the discharge port 5A, and the output port 6A are respectively connected, and the input port 4, the output port 6A, and the discharge port 5B, and the output port 6B, which have been connected, are disconnected and the flow path is switched. Have been.

Next, as shown in FIG. 3, a plurality of the valves 1 having the above-described structure are mounted on a manifold base 32 having an input port 30 and exhaust ports 31A and 31B common to each valve 1. Is configured.

In this case, each of the valves 1 has the main valve 2 side as the inner end side at both ends of the manifold base 32, and its axes are arranged in parallel with each other. while the outer surface side of the width W ₃ side of the main valve section 2, which is smaller than the width W ₄ is the mounting surface of the manifold base 32, also the width W, which is the same as the width W ₁ of the operation portion 3 one of the outer surface side each other of the _two side main valve part 2 are arranged adjacently facing each other.

The arrangement of each of the valves 1 allows the manifold valve 3 in the cross axis direction of the valve 1 to be disposed.
The length W5 of the manifold ₃ is reduced to reduce the size and space of the manifold valve 33 itself.

As described above, the manifold valve 33 of the present embodiment can be reduced in size and space.

Further, according to the manifold hole valve 33 of the present embodiment, the width W ₂ of width W ₁ and the operation unit 3 of the main valve section 2 of each valve 1 is formed identical to each other, and the main valve section 2 While the width W ₃ is formed smaller than the width W ₄ of the operating unit 3, the width W ₄ of the operating unit 3 is not reduced, a reduction in the characteristics of the operation unit 3, i.e., the winding space of the solenoid coil 20 Increase of power consumption and temperature rise due to decrease of control, decrease of control flow, delay of response time,
Instability of operation, increase in minimum operating pressure due to downsizing of the pressure receiving area of the drive piston 13, delay in response time, instability of operation, and the like can be prevented.

[0038]

Embodiment 2 FIG. 4 is a sectional view showing a valve according to another embodiment of the present invention, and FIG. 5 is a sectional view taken along line VV of FIG.

The valve 1 of the second embodiment differs from the valve 1 of the first embodiment in that it has a valve structure of a fluid pressure operation type such as compressed air.

[0040] In the valve 1 of this embodiment 2, the width W ₂ of the operation unit 3 in the same direction as the width W ₁ and a transverse direction in one transverse direction of the main valve section 2 is formed identically to each other are, but width W ₃ in the other transverse direction of the main valve section 2 is smaller is approximately 1/2 of the width W ₄ of the operating unit 3 in the same direction as the transverse direction.

Therefore, by disposing such a valve 1 on the manifold base 32 in the same manner as in the first embodiment, the length W ₅ of the manifold valve 33 in the direction of the axis of the valve 1 can be reduced. The size and space of the manifold valve 33 itself can be reduced.

Further, the width W ₂ of width W ₁ and the operation unit 3 of the main valve section 2 of each valve 1 is formed identical to each other, and the width W of the width W ₃ is an operation portion 3 of the main valve section 2
₄ , but the width W ₄ of the operation unit 3 is not reduced, so that the characteristics of the operation unit 3 are reduced, that is, the minimum operating pressure is increased and the response is reduced by reducing the pressure receiving area of the drive piston 13. Time delay, operation instability, etc. can be prevented.

[0043]

Embodiment 3 FIG. 6 is a sectional view showing a manifold valve according to still another embodiment of the present invention, FIG. 7 is an exploded perspective view of the manifold valve, and FIG. 8 is a rear view of the manifold valve shown in FIG. FIG.

The manifold valve 40 of the third embodiment
Is a solenoid valve of an internal pilot type indirect operation type.

Main valve 41 of manifold valve 40
As shown in FIG. 6, the first driving piston portion 4 in which the first driving piston 42 having a large pressure receiving area is housed is provided.
3, a second drive piston portion 45 in which a second drive piston 44 smaller than the pressure receiving area of the first drive piston 42 is housed, and a first drive piston portion 43 and a second drive piston portion 45 interposed therebetween. The main shaft 47 is accommodated in the internal shaft hole 46, and the main shaft 47 is displaced along the axial direction by the operating force of the first drive piston 42 and the second drive piston portion 45, thereby switching the flow path. It has a main shaft portion 48, and the first drive piston portion 43, the second drive piston portion 45, and the main shaft portion 48 are coaxially coupled to each other.

As shown in FIG. 8, the main valve 41 is
A width W ₁ in the one transverse direction of the drive piston 45 and the main shaft portion 48, although the width W ₂ of the first drive piston 43 in the same direction as the transverse direction is the same width, the 2 drive piston part 45 and main shaft part 48
The other width W ₃ in the transverse direction is substantially 1/2 smaller than the width W ₄ of the first drive piston 43 in the same direction as said cross-axis direction.

The main valve 41 is connected to both ends of the manifold base 49 by the second driving piston 4.
The second drive piston portion 45 on the width side, which is smaller than the width of the first drive piston portion 43, and the main shaft are arranged such that the 5th side is the inner end side and their axes are parallel to each other. The outer surface side of the portion 48 is the mounting surface side of the manifold base 49, and the outer surface side of one of the second drive piston portions 45 and the main shaft portion 48 on the width side not formed smaller than the width of the first drive piston portion 43. They are arranged adjacent to each other so as to face each other.

With such an arrangement, the length W ₅ of the manifold valve 40 in the cross axis direction of the main valve 41 is reduced, and the size and space of the manifold valve 40 itself are reduced.

Next, in the third embodiment, as shown in FIG. 6, the main valve 41 and the operating portion 54 are separated from each other, and the manifold base 49 is interposed between both.

As shown in FIG. 6, the manifold base 4
9, a plurality of sets of input ports 50 and discharge ports 51A and 51B are opened according to the number of main valves 41 mounted.
The input port 52 and the discharge ports 53A and 53B of the main valve 41 are connected to 1B, respectively.

The input port 50 of the manifold base 49
The discharge ports 51A and 51B are connected to the input flow path 55C and the discharge flow paths 55A and 55B common to each main valve 41.
And the input flow path 55C and the discharge flow path 55
A and 55B are connected to an input port 57 and a discharge port 58 of the port cover 56, respectively, as shown in FIG.

As shown in FIG. 6, the manifold base 4
9 has a first pilot passage 61 communicating with a first cylinder chamber 59 in which the first drive piston 42 is accommodated, and a second pilot channel 61 communicating with a second cylinder chamber 60 in which the second drive piston 45 is accommodated. 2 pilot flow path 62 and main valve 4
A plurality of sets are formed in correspondence with the number of 1.

In the port cover 56, a plurality of sets of piping ports 64A and 64B are opened corresponding to the number of output ports 63A and 63B of each main valve 41, and each of the main valves 41 is connected to the piping ports 64A and 64B. 41 output port 63
A and 63B are respectively connected.

Next, each of the main valves 41 disposed on the manifold base 49 with a sheet-shaped seal member 65 interposed therebetween.
The port cover 56 is attached to the manifold base 49 so that each main valve 41 is connected to the manifold base 49.
Side of the manifold base 4
9.

For this reason, as shown in FIG. 8, a through hole (not shown) through which a set screw 66 penetrates is formed at the corner of the port cover 56, and the corner of the manifold base 49 is formed at the corner. A screw hole 67 to which the set screw 66 is fastened is formed, and the set screw 66 that has passed through the through hole of the port cover 56 is fastened to the screw hole 67.
The port cover 56 is attached to the manifold base 49.

As shown in FIG. 6, on the opposite surface of the manifold base 49 on which the main valve 41 is mounted, a pilot portion 68 and a solenoid portion 6 which are coaxially connected to each other.
A plurality of operation units 54 each including 9 are mounted via a sheet-shaped seal member 70 in accordance with the number of main valves 41.

As shown in FIG. 7, each operation section 54 is alternately arranged on the manifold base 49 corresponding to the arrangement of each main valve 41, and a wiring cover 72 for covering and protecting the power supply board 71 for the solenoid section. Is manifold base 4
9.

For this reason, as shown in FIG. 7, a through hole through which a set screw 73 penetrates is formed at a corner of the wiring cover 72, and a stop hole is formed at a corner of the manifold base 49. A screw hole 74 into which the screw 73 is fastened is formed.
3 is fastened to the screw hole 74 so that the wiring cover 7
2 is attached to the manifold base 49.

As shown in FIG. 6, the operation section 54 is formed with pilot flow paths 75, 76, and 77, respectively.

The pilot flow path 75 communicates with the cylinder chamber 59 of the main valve 41 through the pilot flow path 61 of the manifold base 49, and the pilot flow path 76
The discharge port 53A of the main valve 41 communicates with the discharge port 53A of the main valve 41 through the discharge port 51A of the manifold base 49.
And a cylinder chamber 60 of the main valve 41.

A flapper 79 for opening and closing the pilot flow path 76 is accommodated in the flapper chamber 78 in the pilot section 68 of the operation section 54 so as to be freely displaceable along the axial direction. Has been energized.

On the other hand, the solenoid 69 of the operation unit 54
A movable iron core 83 accommodated in the solenoid chamber 81 so as to be displaceable in the axial direction, a fixed iron core 84 to which the movable iron core 83 comes and goes, and a spring for urging the movable iron core 83 toward the pilot channel 77 side. 85 and solenoid coil 86
It is constituted by such as.

The flapper chamber 78 and the solenoid chamber 81 are
The plunger pins 82 are communicated with each other through a communication passage 87 into which the plunger pins 82 are loosely inserted, and the flapper 79 and the movable iron core 83 are linked via the plunger pins 82.

Next, the operation of the manifold valve 40 having such a structure will be described.

For example, when a fluid pressure such as compressed air is supplied to the input flow path 55C of the manifold base 49 through the input port 57 of the port cover 56 in the state shown in FIG. The fluid pressure is applied to the second pilot flow path 6 of the manifold base 49.
2 is introduced into the cylinder chamber 60 of the main valve 41 and acts on the second drive piston 44, whereby the main shaft 47 is maintained in the state shown in the figure, and the fluid pressure is applied to the input port 50 of the manifold base 49, the main valve Port cover 56 through input port 52 and output port 63B of 41
Is supplied to a predetermined fluid pressure operating device (not shown) from the piping port 64B.

The fluid pressure discharged from the fluid pressure operating device is discharged to the outside from the discharge port 58 through the piping port 64A, the output port 63A, the discharge ports 53A and 51A, and the discharge passage 55A, and the cylinder chamber. 5
9, the fluid pressure remaining in the first pilot channel 61, the pilot channel 75, the flapper chamber 78, the pilot channel 7
6. Discharged to the outside through the discharge passage 55A and the discharge port 58.

Next, when the solenoid 69 is excited, the movable iron core 83 is displaced toward the fixed iron core 84 against the urging force of the spring 85, and the pilot flow path 77 is opened.
On the other hand, the flapper 79 is displaced toward the pilot flow channel 76 by the urging force of the spring 80 and closes the pilot flow channel 76.

The fluid pressure supplied to the input passage 55C is applied to the pilot passage 77, the solenoid chamber 81, the communication passage 8
7, the first drive piston 42, the second drive piston 44, and the main shaft 47 are introduced into the cylinder chamber 59 through the flapper chamber 78, the pilot flow path 75, and the first pilot flow path 61 and act on the first drive piston 42. The input port 52 is displaced from the state shown in FIG. 6 to the second cylinder chamber 60 side, and the input port 52 and the output port 63A, and the discharge port 53B and the output port 63B, which were not connected, are respectively connected. And the output port 63B and the discharge port 53A and the output port 63A are disconnected, and the flow path is switched.

By switching the flow paths, the input flow path 55
The fluid pressure of C is supplied from the piping port 64A of the port cover 56 to a predetermined fluid pressure operating device (not shown) through the input port 52 and the output port 63A, and the fluid pressure discharged from the fluid pressure operating device. Is port 6 for piping
The fluid pressure discharged from the discharge port 58 through the discharge port 4B, the discharge port 53B, and the discharge flow path 55B is discharged out of the cylinder chamber 60 through the second pilot flow path 62.

The manifold valve 40 of the third embodiment
Is operated as described above, but in the same manner as in the manifold valves 40 of the first and second embodiments, the main valves 41
With this arrangement, the length of the manifold valve 40 in the cross axis direction of the main valve 41 can be reduced, and the size and space of the manifold valve 40 itself can be reduced.

The width W ₃ of the second drive piston 45 and the main shaft 48 of each main valve 41 is smaller than the width W _{4 of} the first drive piston 43. Since the width W ₄ of the first drive piston 42 is not reduced, it is possible to prevent an increase in the minimum operating pressure, a delay in response time, an unstable operation, and the like due to a reduction in the pressure receiving area of the first drive piston 42.

The invention made by the inventor has been specifically described based on the embodiments.
It is needless to say that the present invention is not limited to 3 and various changes can be made without departing from the gist of the present invention.

For example, in the third embodiment, each of the main valve portions 41 is fixed to the manifold base 49 via the port cover 56. However, each of the main valve portions 41 in the present invention has such a structure. Port cover 5
6 is not limited to the fixing means.

[0074]

Advantageous effects obtained by typical ones of the inventions disclosed by the present application will be briefly described as follows.
It is as follows.

(1) According to the above-described manifold valve of the present invention, the operation portion having a large valve width is located at both ends of the manifold base, and the main valve portion having a small valve width is located inside the manifold. The valve is mounted on the manifold base with the valve overlapped, so the total width of the valve mounted on the manifold base can be shortened, making the manifold valve compact and space saving Can be achieved. Also,
Since the width of the operation section can be larger than that of the main valve section, it is possible to prevent the characteristics of the operation section from decreasing.

(2) According to the above-described manifold valve of the present invention, the main valve is mounted on one surface of the manifold base, and the operating section is mounted on the opposite surface, and the width of the main valve is small. Since the part was located inside the manifold base and the main valve was overlapped and mounted,
Since the main valve and the operation unit overlap on both surfaces of the manifold base, the manifold valve can be reduced in size and space can be saved.

[0077]

[0078]

[Brief description of the drawings]

FIG. 1 is a sectional view showing a valve according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3A is a plan view showing a manifold valve using the valve, and FIG. 3B is a front view of FIG. 3A.

FIG. 4 is a sectional view showing a valve according to another embodiment of the present invention.

FIG. 5 is a sectional view taken along line VV in FIG. 4;

FIG. 6 is a sectional view showing a manifold valve according to still another embodiment of the present invention.

FIG. 7 is an exploded perspective view of the manifold valve.

8 is an assembled perspective view of the manifold valve shown in FIG. 7 as viewed from the rear side.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Valve 2 Main valve part 3 Operation part 4 Input port 5A Discharge port 5B Discharge port 6A Output port 6B Output port 7 Shaft hole 8 Main shaft 9 Spring 10 Seal member 11 Driving piston part 12 Cylinder chamber 13 Driving piston 14 Solenoid part 15 Movable iron core Reference Signs List 16 fixed iron core 17 introduction path 18 supply path 19 spring 20 solenoid coil 21 discharge port 30 input port 31A discharge port 31B discharge port 32 manifold base 33 manifold valve 40 manifold valve 41 main valve 42 first drive piston 43 first drive piston part 44 Second drive piston 45 Second drive piston part 46 Shaft hole 47 Main shaft 48 Main shaft part 49 Manifold base 50 Input port 51A Discharge port 51B Discharge port 52 Input port 53 Discharge port 53B Discharge port 54 Operation unit 55A Discharge flow path 55B Discharge flow path 55C Input flow path 56 Port cover 57 Input port 58 Discharge port 59 Cylinder chamber 60 Cylinder chamber 61 Pilot flow path 62 Pilot flow path 63A Output port 63B Output port 64A Piping port 64B Piping port 65 Seal member 66 Set screw 67 Screw hole 68 Pilot part 69 Solenoid part 70 Seal member 71 Power supply board 72 Wiring cover 73 Set screw 74 Screw hole 75 Pilot channel 76 Pilot channel 77 Pilot channel 78 Flapper chamber 79 Flapper 80 Spring 81 Solenoid chamber 82 Plunger pin 83 Movable iron core 84 Fixed iron core 85 Spring 86 Solenoid coil 87 Communication passage W ₁ width W ₂ width W ₃ width W ₄ width W ₅ length

Continuation of the front page (56) References JP-A-2-129474 (JP, A) JP-A-1-234670 (JP, A) JP-A 62-86482 (JP, U) JP-A 51-154730 (JP , U) Japanese Utility Model 61-129976 (JP, U) Japanese Utility Model 1-169680 (JP, U) Japanese Utility Model 3-22102 (JP, U) Japanese Utility Model 2-37003 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) F16K 27/00 F16K 31/42

Claims (5)

(57) [Claims] 1. A common input flow path and a common discharge flow path are formed.
And a main body that accommodates the main shaft so that it can be displaced in the axial direction.
Switching to the input channel and the exhaust channel by displacement
Small width main with output port
A valve portion and a piston for operating the main shaft are provided.
An operating portion having a larger width dimension than the main valve portion,
A plurality of valves mounted on the manifold base
The operation unit having a large width is provided with the manifold base.
Position the main valve with a small width at both ends.
Position the valve on the inside of the manifold base.
Mounted on the manifold base with overlapping
A manifold valve characterized by the following. 2. The operating section opens and closes the piston.
2. The device according to claim 1, further comprising:
On-board manifold valve. 3. The piston in the main valve section
On the opposite end, biases towards the piston
3. The method according to claim 1, wherein a spring member is provided.
On-board manifold valve. 4. The piston in the main valve section
At the opposite end, the outer diameter is smaller than the piston.
And a small-diameter piston is provided.
Is the manifold valve described in 2. 5. A common input flow path and a discharge flow path are formed.
And a main body that accommodates the main shaft so that it can be displaced in the axial direction.
Switching to the input channel and the exhaust channel by displacement
Small width part with output port that is obtained and communicates
And a large diameter piston for operating the main shaft is provided.
A portion having a large width dimension.
A plurality of main valves mounted on one surface of a piston, and a pyro-pilot for opening and closing a pilot flow path to operate the main shaft.
And a coaxial valve coupled to the pilot valve and the pilot valve.
A solenoid for opening and closing the pilot valve ,
A plurality of controls mounted on the opposite side of the manifold base
Working part, and a portion of the main valve having a large width dimension is connected to the manifold.
Positioned at both ends of the base, the width of the main valve
Place the small part inside the manifold base.
The main valve overlaps the manifold base
A manifold valve that is mounted on