JPS5891982A - Control valve gear - Google Patents

Abstract

PURPOSE:To aim at obviating such damage as a twist and so on in a watertight retaining member, by installing two control elements held up in a desired state. CONSTITUTION:When the internal pressure in the control chamber goes up, this pressure rising acts on a second control element 61g in a space 61a whereby a first control element 61c tends to move in the right direction. Following the first control element 61c, the second control element 61g moves to the right side by force of a spring 61f but hits on a step difference 61h and thereby stops. When the first control element 61c separates from the second control element 61g, a state of watertightness in the second control element 61g for the first control element 61c is released, so that the operation liquid flows into a sliding hole 61b from the space 61a via a notch 61j and further into a store chamber 41 by way of a through hole 61e.

Description

DETAILED DESCRIPTION OF THE INVENTION In the present invention, when operating equipment by controlling hydraulic pressure such as oil pressure or water pressure, when the pressure-controlled part is increased to a predetermined pressure, the pressure-controlled part [non-pressure-controlled part] The present invention relates to a controlled pulp device that communicates with the main unit and shuts off the two using the ta milliset number.

Suguru Oboro is known as this type of controlled pulp device, but the total volume of the pressure controlled liquid is small, and even a small leakage of liquid causes pressure fluctuations and disturbances in control operations. If precise pulp control is required, a liquid-tight material such as an O-ring must be used between the pulp body and the spool that slides inside the pulp body, but it is necessary to use a liquid-tight material such as an O-ring on the side of the spool. There are times when the formed communication hole inevitably crosses the individual tubes of the liquid-tight material (when switching between communicating and blocking), which causes the liquid-tight material to twist and cause damage.

In addition, since the spool operates from the fully closed position to the fully open position of the communication hole, opening and closing cannot be done instantaneously. This causes disturbances in the operation of the pressure control section.

This invention has been made based on the above circumstances, and provides a control operation that allows control operations to be performed without causing damage such as twisting to the liquid-tight retaining material, and that also enables virtually instantaneous opening and closing. The present invention aims to provide a valve device.

Hereinafter, a detailed explanation will be given based on an example used in this Invention Gold 1 physical force treatment device.

In the figure, reference numeral 10 denotes the main body of the physical force treatment device, which includes a hydraulic control system (hydraulic control system in this embodiment) integrated into a Uzing block 11,
The assembly consists of a plate-shaped pace member 12 fixed to the housing block 11, and a cover block 13 made of hard synthetic resin that covers the operating system of the physical force treatment device except for the treatment element 200 portion.

In this embodiment, the treatment element 20 includes a pair of massaging elements 21.
and 22), respectively, 23m and 24a1-, which are pivoted to the housing block 1.
The swinging member 23, which is pivotally supported through the base cylindrical body 23b, and a support body 23c that is movably fitted to the base cylindrical body 23b are connected and fixed by a stand I bolt 23d.

The kneading element 21ti and the head 2 made of hard synthetic resin
A cushion member 21b made of a synthetic resin such as polyurethane foam is attached to a 1 m long head, and the surface of the cushion member 21b is covered with a skin part #21C made of a soft synthetic resin. The fork 21, which is pivotally supported and formed at the end of the neck, is elastically supported by a compression spring 21f provided on the support 23C of the swinging member 23, and is supported by the shaft 23clt.

Further, the tail portion of the swinging member 230 is provided with a roller joint 23e for receiving the driving force from the driver 1R30. In addition, the kneading element 22 has a head 22m made of a hard synthetic resin and a cushion member 22b made of synthetic resin such as foamed I-urethane skin. ! It has a structure in which the surface is covered with a 22 ct skin member made of soft synthetic resin. Further, the swinging member 24 has a base 5b, which is movably fitted into the base 5b, and nine supports 24c, which are connected and fixed by a stud 24d. The drawing moving members 23 and 24 are provided with pivot pins provided below the pivot pin 23a for the swing member 23 and above the pivot pin 24a for the swing member 24, respectively. A rod-shaped interlocking element 250 is pivotally supported at both ends by 23h and 24h, so that the kneading elements 21 and 22 can be relatively moved toward and away from each other.

In order to elastically support the kneading elements 21 and 22 in the direction of separation and to hold the rolling contact 11t of the rolling contact 23e, a bracket 25a provided on the interlocking element 25 and a hook provided on the housing block 11 are connected. A tension coil spring 26 is tensioned between the two.

The driving means 30 is arranged on the lower side of the nozzling block 11. In this embodiment, the driver &30 is composed of a piston-cylinder mechanism, and includes a piston 31 with a head 31a in contact with the rotor 23e, and a silicon piston ring 32 fitted on the piston 31. and a cylinder liner 33 into which the piston 311-m is movably inserted and which maintains liquid tightness with the piston ring 32 to prevent leakage of operating fluid to the outside. Then, the cylinder liner 33 [7
1) (The cylinder chamber 34 formed in the housing block 11 where it is inserted and held and fixed is an annular passage 33 formed on the outer periphery of the cylinder liner 33.
A communication port 34m is provided which communicates with a control chamber 35 formed in another part of the housing block 11 through ak, and the communication port 34m is connected to the fc1 liquid supply means 40.
is communicated with.

The liquid quantity supply means 40 is composed of a liquid storage chamber 41 and a granger 4 ring structure 42.
1 is equipped with an internal space automatic adjustment element 43 made of a rubber bag that expands and contracts as the internally stored liquid increases and decreases, and is configured to avoid contamination of compressible fluid, such as air, in the liquid control system. There is.

The plunger pump structure 42 includes a bong f'M42a formed in the housing block 11, a plunger 42b that moves forward and backward into the pump chamber 42a, and a seal ring 42c disposed on a sliding portion of the plunger 42b.
A drive head 42 formed at the outer end of the granger 42b
A compression coil spring 42e that elastically supports the granger 42b'i outward, and a first check valve device 1142f provided between the pump chamber 42L and the storage chamber 41.
and a second check valve mechanism 42g provided between the pump chamber 42a and the communication port 34a. The check valve mechanism 42f includes a valve chamber 42h that communicates with the pump chamber 42a, and a valve port 42 that opens into the storage chamber 41.
1, a valve seat 42j provided at the valve port 421, a pole-shaped valve body 42 that contacts the valve seat 42j from the valve chamber 42hll, and a spring 42t that elastically supports the ball-shaped valve body 42k. When the granger 42b is withdrawn to the outside by the force of the sliding ring 42e, the valve body 42kt is pulled from the valve seat 42j by the negative pressure generated in the pump chamber 42a, but when the negative pressure is released, the spring 421 Valve body 4
The valve seat 42 j FC is in elastic contact with the valve x 42 h and the pump chamber 42 a to prevent the control fluid from flowing back into the storage chamber 41 . The reverse valve @4442g has a valve port 42m communicating with the pump chamber 42a via the valve chamber 42h, and a valve seat 42 provided at the valve port 42m.
n, the valve chamber 42p communicating with the valve port 42m via the valve seat 42nf, a ball-shaped valve body 42q that abuts the valve seat 42n from the valve chamber 42p side, and the valve body 42 Qt.
[The valve chamber 42p is connected to the communication port 34a, and the plunger 42b enters the cylinder f chamber 2a with an external 1M driving force. At this time, the internal pressure of the inlet foot 42a and the valve chamber 42h increases, and the valve body 42qt'' is pulled away from the valve seat 42n, allowing control fluid to flow into the valve chamber 42pK from the pump chamber 421 through the valve chamber 42h, thereby establishing communication. When the pressurized liquid can be supplied to the driving means 30 through the port 34a and the pressure difference between the valve chamber 42h and the valve chamber 421) is reduced, the spring 42r brings the valve body 42q into elastic contact with the valve seat 42n. , valve chamber 421) to the valve chamber 42h can be prevented.

A first release means 50 that releases the working fluid in the drive means 30 by manual operation, and a massaging collector 2
When the hydraulic pressure in the drive means 30 reaches the set value due to the resistance pressure applied to the resistors 1 and 22, the operating fluid of the drive means is transferred to IJ.
The second leasing space means 60#'i are arranged in relation to the control chamber 35 of the drive means 30, respectively.

The release means 50 of I@1 includes a spool valve mechanism 51,
It is comprised of a manual lever mechanism 52 for operating the spool 51at* of the spool valve machine [51]. The spool valve machine v451 stores 1! from the control room 35! The spool 51a is slidably inserted into a cylindrical fixed sleeve 51b that penetrates toward the control chamber 35, and the spool 51m has a valve port 51c that communicates with the control chamber 35.
is formed in the nozzle, and the above-mentioned valve port 51c''ft storage 1u4
1, and an annular liquid-tight seal member 51f is installed between the head 51e on the control chamber 35 side and the valve port 51c. The head 51e is elastically supported by a compression coil spring 51g provided in the control chamber 35, and the spool 51a is attached to the fixed sleeve 51g.
It is pushed into 1b. The manual lever mechanism 52 is
A hollow cylindrical lever member 52a and the lever member 52a
a grip 52b disposed at the tip of the lever member 5;
At the proximal end of 2a, a shaft 5 is provided in the storage and presentation 41.
A swinging arm 52d pivotally supported by 2C and a compression coil sgelling 5 that elastically supports the upward lever member 521 in a horizontal state.
2e and a protrusion 52f provided on the lower abdomen so that the upper end of the spool 51 can be suppressed by the lower abdomen of the lever member 52a without interfering with the communication between the passage 51d and the storage chamber 41. It is composed of.

Therefore, the lever member 52ak is rotated about the pivot shaft 52ci (counterclockwise in FIG. 2).

By pushing down the upper end of the spool 52m against the spring 51g, the valve port 51c can open into the control chamber 35. At this time, the operating fluid in the control 1i35 flows through the passage 51b.
Save through t*l! 4i. If the manual force applied to the lever member 52 & is removed, the lever member 5
2& is returned to the horizontal position by the spring 52e, and the spel 511 is also raised by the spring 51g, putting the valve port 51a into the sleeve 51b and entering the valve closed state. As a result, communication between control 1135 and storage 1!41 is cut off. Even if the internal pressure of the control 1!35 increases, the head 51 of the spool 51m returns to the end of the sleeve 51b, so the spool 51m is not pushed up any further and the valve closed state is maintained.

The second release means 60 has the structure of a controlled pulp device according to this release. That is, the release means 60 has the function of communicating or blocking the control 1135 (pressure controlled part) and the storage chamber 41 (non-pressure controlled part), and the space communicating with the control chamber 35. 61a communicates with the sliding hole 61b, and the sliding hole 61b
The operating element 61c of WLl integrated with the release member 61?
It is slidably inserted into the O-ring 61dK while being kept liquid-tight, and the storage chamber 4 is placed in the center of the operating element 61e.
A through hole @let communicating with 1 is formed, and 11n1
It is elastically supported by the compression spring 61f toward the operating element 61cK! 1!2 operating element 6111' above space 6
1a, there is a step 61h between the space 61& and the sliding hole 61b, and when the Wx2 operating element 61g follows the first operating element 61cK, its stroke range is When only a portion of the movement tube has been followed, the movement tube comes into fluid-tight contact with the O-ring 611 fitted at the end of the movement element 61a, and the through hole 61 is closed to the space 6.
1a is blocked. Furthermore, when the second operating element 61e hits the step 61h, the two-step difference 61hK locally forms a notch t61j to communicate the space 61a and the sliding hole 61b.

The release means 60 further has a reversal position within the stroke of the linear reciprocating motion of the release member 61, and a toggle retention mechanism 62 that reverses the direction of the reciprocating linear motion of the release member by the operation of the release member 61. This embodiment is also equipped with pressure adjustment means (described later) for adjusting the elastic holding force in the toggle holding mechanism. The release member 61it, the housing block 11
It includes a slide portion 61m that slides on a slide guide 61k formed therein, and a communication portion 61n.

The toggle retaining mechanism 62 includes a U-shaped slot 62m formed in the slide portion 61cK, a guide pin 62b fitted into the slot 62a, and a pair of upper and lower toggle links 62c pivotally connected to the guide pin 62bK. and 62d, and a rolling contact roller 6 pivotally connected to the upper end of the toggle link 62e.
2. and a pivot pin □ 6 provided in the storage chamber 41 to fit into the U-shape #l 62f formed at the lower end of the toggle link 62d and to support the toggle link 62d.
2tt, is commonly supported by the swing arm 52d on the pivot shaft 52e, has two mutually orthogonal surfaces 62h and 621, and has one il! At D62h, the elastic pressure support member 62j is in contact with the rolling contact roller 62eK of the toggle link 62e, and the toggle link 62C is elastically supported by the supporting member 62j and applies elastic force to the rolling contact roller 62eK via the surface 62h'. and a compression coil spring 62 for holding the bent shape m\r of 62b, and a guide slit (62m) formed on the inner wall surface of the storage chamber 41 for vertically guiding the shaft 621 of the rolling contact roller 62. It is configured.

When the internal pressure of the control chamber 35 rises, this acts on the operating element 61g of gg in the space 61a, and as a result, the operating element 61c of section 1 tries to move to the right in Fig. 2, but in this case, The guide pin 62b is bent to move to the left by the elastic force of the toggle links 62e and 62dti and the spring 62. Therefore, the release member 61#i, the control N3
The pressure caused by the increase in the internal pressure in step 5 and the spring 62
This means that it is stopped at a point where the balance between the guide pin 62b and the force pushing it to the left side is maintained by k. Then, when the internal pressure of the control chamber 35 further increases, the balance point moves to the right, and the spring 6
Toggle links 62c and 62d are brought closer to the upright state while moving guide pin 62b to the right so as to compress by 2 kt. If the internal pressure of the control chamber 35 further increases after the toggle links 62c and 62d become completely upright (that is, after the spring 62k is compressed to the maximum), the guide pin 62b will move beyond its neutral point. to move to the right. At this time, the toggle is reversed, and the pressure of the spring 62 applied to the toggle links 62c and 62d acts as a force to move the guide pin 62b to the right, so the release member 61 is released by the elastic force of the spring 62. It will move rapidly to the right.

Therefore, the second operating element 61g tries to move to the right side by the force of the spring 61f following the first operating element 61@, but it hits the step 61h and is stopped, and the first operating element 61c moves toward the second. away from the operating element 61g. Therefore, the second operating element 61 for the operating element 61C of Edict 1
The liquid-tight state of g is eliminated, and the working fluid flows from the space 611 to the sliding hole 61b through the cutout 61jt-, and further to the storage chamber 41 through the through-hole 61et-. and drive means 30
This will reduce the internal pressure of the However, once the IJ IJ-space member 61 is moved to the right side after the above-mentioned time has elapsed, unless the reset means 70 described later is activated, the space 61at;
It will be maintained at the same time. In this way, the timing at which the control valve mechanism is opened is determined by the elastic force of the spring 62 applied to the release member 61.
If set as 4J force, kneading elements 21 and 2
When the internal pressure of the drive means increases due to the resistive force applied to the release means 60 and reaches the set value, the I-fleece of the release means 60 is achieved.

In this embodiment, the reset means 70 is composed of a syringe mechanism 71 and a reset operation mechanism 72. The plunger mechanism 71 includes a housing block l.
A pressure supply g 71 m formed in the pressure supply chamber 71 m, a plunger 71 b that moves forward and backward into the pressure supply chamber 71 a, and a seal ring 71 c disposed on the sliding portion of the sylanger 71 b.
, a drive head 71d formed at the outer end of the plunger 71b, and a compression coil spring 71e that presses the drive head 71d and urges the granger 71bi outward.
It is composed of. The reset operation mechanism 72 is
Pressure operation that communicates with the pressure supply ji171m through the passage 72m! 72b'i is equipped. A sleeve 72e is fitted into (supported by) this pressure working chamber 72b, and a piston 72 sealed with a liquid seal ring 72d is slidably inserted into the sleeve 72e, and the end of the piston 72e is slidably inserted into the sleeve 72e. In this case, a liquid supply lower 2f opens in the sleeve 72a so that liquid pressure acts from the pressure operating chamber 72b. The reset operation mechanism 72 further includes a reset operation element 72g that is integrated with the piston 72 and can protrude into the slide guide 61a of the release means 60 from the end of the sleeve 72c. One compression coil spring 72h is in elastic contact with Fi in 72e so as to receive a biasing force in the right direction in FIG.

In addition, the reset operator 72g and the piston 7
An inlet/outlet lower 3 is provided that passes through the slide guide 61a and connects the slide guide 61a with the liquid supply lower 2ft. The release member 61 is provided at the end of the release member 61 opposite to the release member 61 .

When external pressure is applied to the drive head 71d, the granger 71b rises against the spring 71e, supplying pressure! Enter 71a. This brings the displaced working fluid to the pressure actuation M72b via the passage @72*. If the entrance/exit lower 3 is opened at this time, the working fluid is discharged into the storage chamber 41. If the release means 6° is in the releasing operation and the release member 61 is moved to the right in the JR2 diagram, the rubber valve body 7
4 closes the entrance/exit lower 3t, so if the internal pressure of the control [35] has already decreased, the reset operator 72g will press the end of the release member 61, and the spring 62
Release member 61 while resisting k? Move it to the left in Figure 2. Guide bin 62b beyond the neutral point of the toggle
At the stage of movement, the toggle links 62c and 62d are bent to the left by the elastic force of the spring 62, so that the release member 61 completely returns to the left, and the release member 62c and 62d are bent to the left. Cut it off.

Further, when the release member 611 independently returns beyond the neutral point, the rubber valve body 74 separates from the lower access/exit lower 3. As a result, the pressure supply chamber 71a is activated! The working fluid in 72b is released into the storage chamber 41 via the inlet/outlet lower 3. As a result, the piston 72- moves back by the action of the spring 72h, and the reset operator 72g exits from the slide guide 61m and returns into the sleeve 72c.

Furthermore, when the external pressure applied to the drive head 71d is released, the plunger 71b moves downward due to the force of the spring 71e and exits the pressure supply chamber 71m, creating negative pressure, and the operating fluid in the storage chamber 41 flows in and out. a pressure working chamber via the lower 3;
It returns to the pressure supply chamber 71. As described above, unless the release member 61 is in the released state and the inlet/outlet lower 3 is not closed by the rubber valve body 74, the vertical movement of the plunger 71b is simply a movement of the operating fluid in and out via the inlet/outlet lower 3. , the operation sound of the reset operator 72g is not produced.

Moreover, unless the release member 61 performs a proper release operation, the reset operation element 72g will not perform the four-t operation.

On the other hand, when the release member 61 returns, the first operating element 61
c corresponds to the second operating element 61g, but until then, the operating fluid in the sliding hole 61b and the through hole 61e is stored in the storage 114.
Since it can be discharged to Em, no pressure fluctuation occurs in the space 61a@. However, the first operating element 61c! ! After the second operating element 61g comes into contact with the second operating element 61g, only a certain pushing amount (determined by the spring 62KK↓) by the first operating element 61e participates in increasing the internal pressure of the space 61a. During the first period of this pushing, the operating fluid leaks into the through hole sie between the operating elements 61o and 61g, and pushing is completed when the pressures on the spring 61f and the tin ring 62 are balanced. Therefore, when the control pulp mechanism is closed, the internal pressure in the control chamber 3s does not substantially increase.

Further, a pressure regulating means 80 is provided for adjusting the timing at which release is performed in the second releasing means 60, that is, the timing at which the hydraulic pressure in the driving means reaches a set value by the resistance pressure applied to the kneading elements 21 and 22. has been done.

The pressure regulator R80Fi is installed inside the lever member 52&, and
! L KFi is a slide hole 811L with a non-circular cross section.
0 and a female threaded piece 81d are slidably inserted in the axial direction, and the piece 81b and the sliding ring holder are connected to the seat 810'.A compression coil sliding ring 82 is interposed between the seat 810' and the opening.

In addition, the upper female screw piece 81 (the adjustment rod 83 with the IK male screws 83 & t-11 fitted is pushed through the shaft hole 81e with a circular cross section formed in the lever member 52a) is connected to the grip 52bK. ing. However, grip 5
When 2b is rotated, the female screw piece 81 (since 1 cannot be rotated, the male screw 83m screws forward and the suge ring holder is attached to the seat 81o.
The bottom of the spring 82 is pressed by the tip of the adjusting rod 83 to compress the spring 82. Therefore, the elastic force of the spring 82 applied to the elastic support member 62jK via the bridge 81b is increased. This Sugering 820 elastic force is the spring 6
2, the required force for toggle reversal applied to the toggle links 620 and 621 is varied by variation in the elastic force of the spring 820. Therefore, if the required force for toggle reversal increases, the release time of the lease means 60tC will be delayed, and as a result,
When the release is performed, the supply of liquid to the driving means 3o at the neck is continued, and the pressure to suppress the affected area by the massaging elements 21 and 22 (in other words, the resistance pressure applied by the massaging elements 21 and x z'i) is increased. It is. That is, the forward and reverse rotation operation of the grip 52m) functions to adjust the kneading strength.

Further, in this embodiment, the driving force for the plunger pump structure 42 and the granger mechanism 71 is provided from an external mechanism. Therefore, when attaching the external mechanism to the pace member 12, the member 100 is brought into contact with the attaching member 100, and the attaching member lOO is positioned by the action of the guide pin 121L provided on the pace member 12. 12 ryo! 1li
It can be fixed with a flang mechanism 15 provided at K. The flang mechanism 15 is pivotally supported on the bracket 14 provided on the pace member 12 with a pin 15&, and the lever 715t)K is provided with another arm 150, and the arm 15oK has a stiffness. Support row I) 15 (1) is provided, and by operating the lever 15b,
When attaching the support roller 151, the support roller 151 is passed around the underside of the member 100, and when attached to the pace member 12, the member 100 is held. By forming this, the crank fvk and the support roller 15d are stably located in the recess 101,
The clamp will not be released in 9 seconds. Note that, if necessary, the lever 15b may be elastically supported in the clamping direction by a single-twist spring or the like.

The mounting member 100 is provided with output members 102 and 103 that move up and down intermittently to push up the drive head 42 (1) and drive head 71 (1) of the plunger pump structure 42 and the granger mechanism 71, respectively. There is.

Next, the operation of the first embodiment described above will be specifically explained.

ζ Here, the output members 102 and 103 drive the driving head ate of the plunger 4-pump structure 42 at a constant Q phase.
< and pushes up the drive head 710 of the plunger mechanism 71. When the drive head 42 (i) is pushed up, the plunger pump structure 42 operates to send pressurized liquid to the communication port 341LK from the pump chamber 42a through the second check valve mechanism 42g, as described above. When the output member 102 descends, the drive head 421 descends with a sliding ring 42el, makes the pump chamber 42a a negative pressure, closes the second check valve mechanism 42g, and closes the first check valve mechanism 42f.
The pump chamber 42aK is opened and the operating fluid is drawn from the storage chamber 41 into the pump chamber 42aK. By repeating K, a plunger pump action is performed, and the working fluid is supplied to the drive means 30 through the communication port 34a. In the driving means 30, the piston 31 is pressed by the applied pressurized hydraulic fluid, and the swinging member 23 is oscillated while pushing the rotary contact 23g by the pusher. Since the swinging motion of the swinging member 23 is also applied to the swinging member 24 via the interlocking element 25, both kneading elements 21 and 22 operate to pinch the affected area while being positioned therebetween.

With the affected area sandwiched between the massaging elements 21 and 2.2, pressurized operating fluid is further supplied to the first driving means 30 so that the relative distance between the massaging elements 21 and 22 becomes smaller. The control chamber 3 of the driving means 30 is activated by the reaction force released from the affected area.
5 internal pressure is increased. □When the internal pressure of the control chamber 35 increases, the release member 61 moves to the toggle retaining mechanism 62.
is moved to the right in FIG. 2 against the elastic force of . When the release member 61 is moved beyond the neutral position of the toggle retaining mechanism 62, the toggle retaining mechanism 62
is reversed, and the space 61a becomes the storage room 4 as described above.
1. By this command, control room 35,
The pressurized operating fluid is released into the storage chamber 41 and the internal pressure decreases, but since the toggle retaining mechanism 62 has already been reversed, it does not work to return the release member 61.

On the other hand, when the output member 103 is pushed up and the output member 103 is turned on, the granger mechanism 71 is reciprocated in the granger 71b with the suge ring 71eO11+, but the release member 61 is moved rightward. As a result of the release operation, when the valve body 74 closes the inlet/outlet lower 3, when the reset operator 72g is moved to the left in FIG. 4 can be seen. When the toggle retention mechanism 62 is reversed again due to the return operation of the release member 61, the release member 61 further promotes the return operation due to the action of the toggle retention mechanism 62, and the first operating element 6
1o is the second operating element 61g and liquid! This is reflected in cutting off the communication between the control chamber 85 and the storage 1M41 at the point when fK is contacted and the pressure is balanced.

As a result of this, the internal pressure of the control chamber 35 is raised again. As a result, when the massaging elements 21 and 22 receive a predetermined reaction force from the affected area (this is set by the spring force of the toggle retention mechanism 62), the release means 60 works, and the massaging elements 21 and 22 22, and also performs a slight return motion.

Then, due to the next action of the reset means 70, the pressing force is increased again and the forward movement is performed, so that the kneading elements 21 and 2
2 can perform the stripping action without leaving the affected area substantially. 'In order to adjust the strength of the kneading, it is sufficient to adjust the elastic force applied by the toggle elastic support mechanism 62 to the IJ IJ-succeeding member 61.
The spring 62k is the minimum pressing force, and the spring 82k is the minimum pressing force.
The surplus can be adjusted by increasing or decreasing the elastic force. For this purpose, the pressure regulating means 80 are operated as described above.

In case of an emergency or to separate the massaging elements 21 and 22 from the affected area in order to change the treatment position, the release means 50 of @1 may be activated. This is lever part 5
Achieved by operation 2a (details have already been given)
. That is, by pushing down the susol 51a,
Since the control chamber 35 and the storage chamber 41 are communicated via the first release means 50, the working fluid supplied to the drive means 30 is released by the action K of the spring 26 to return the piston 31 to the storage ff1ii. ! 41. As a result, the swinging members 23 and 24 are moved back to widen the relative distance between the kneading elements 21 and 22.

In the above embodiment, in order to restrict the protruding stroke of the piston 31 in the drive means 30, a stop horn 436 may be provided on the support base 16 provided on the base member 12. In this case, the strut horn base 36 is preferably made of 1-rubber to absorb the shock in the event of a collision.

In addition, in the above example, Grand Shabon! Although the driving force for the structure 42 is obtained from an external output member 102, this device itself receives the rotational force from a driving source for driving the granger I/P structure 42, such as an electric motor and a crank or cam. It goes without saying that the structure may include a reciprocating force exchange means.

Further, in this embodiment, the driving force of the granger mechanism 71 is obtained from the external output member 103, but the reset operation j7-2g may be performed from the outside by manual operation. Alternatively, the massaging element 21 may be provided with a load sensor, and when the load sensor is turned on due to resistance from the affected area, the reset operator 72g may be replaced with an electric control means such as a solenoid that drives the reset operator 72g. Control means such as a substitute for the load sensor bK, a sliding ring, a switch lever, a limit switch, etc. may also be used.

Further, instead of the solenoid, a control means may be provided that includes a motor that can be switched between forward and reverse directions, and a screwdriver that moves forward and backward depending on the direction of rotation of the motor.

In addition, in this embodiment, in the release means of Mori and Ochi 2,
Although the spring force applied to the release member 61 is applied by the toggle carrier #162, in a trench where the reset means 7o works after the +717 action, any other suitable method may be used as long as the released state can be maintained. Of course, a spring mechanism or the like may also be used.

Furthermore, in this embodiment, the hakama kneading elements 21 and 22 are
The kneading elements 21 and 22 are supported in a swingable manner by the swinging members 23 and 24, and are configured to be able to move toward and away from each other relative to each other via the interlocking element 25. When driven by the means 3o, it may be possible to move toward and away from each other relatively. Furthermore, if one of the kneading elements, for example, the kneading element 22, is fixed to the main body of the device, and only the other kneading element 23 is driven by the driving means 3o, the relative contact and separation will be different. 'K' may be used to perform the action. Alternatively, the kneading element 21 or the kneading elements 21 and 22 may be directly connected to the piston cylinder mechanism so as to face each other and reciprocate linearly with each other. In this case, the swinging member 2
3tIP and 24 are omitted.

Alternatively, each of the kneading elements 21 and 22 may be configured to have a plurality of separate parts.

In this case, the fingertip can exert acupressure effect on the affected area.

Further, in this embodiment, in the second release means,
Although the motion suppressing force applied to the base member 61tC is applied by the toggle retaining mechanism 62, the configuration is such that the released state can be maintained in the pupil where the reset means 70 operates after the release action, and the reset means 70 is It goes without saying that any other appropriate reversing mechanism, such as a spring mechanism, may be used as long as the release member 61 is actuated to reverse and move the release member away from the reset operator.

As described in detail above, this invention has a tortoise that connects or disconnects a pressure-controlled part and a non-pressure-controlled part, in which a pressure-free part is placed in the center with respect to a sliding hole communicating with a pressure-controlled part. The operating element of the housing 1 having a through hole that communicates with the control part is fitted in a fluid-tight and slidable manner, and the operating element is capable of contacting the first operating element in a liquid-tight manner and is connected to the first operating element. The operating element of the housing 2 which is held toward the direction is located on the side of the pressure-controlled part, and the operating element of the v, 2 is capable of following a part of the stroke of the first operating element of the upper Ie, First, in the operation limit, 1, when the operating element @1 is separated from the operating element @2, the above-mentioned through hole and the pressure controlled part are communicated with each other, so that the first operation is performed. The member that maintains the liquid tightness of the element is in complete sliding contact within the sliding hole, and unlike the Sugur type, there is no disconnection failure during one twist, and the first operating element does not return to its original position. Also, the operating element [1] and Is2 operate until the pressure is balanced, and during that time, the operating fluid leaks from the pressure-controlled part to the non-pressure-controlled part, and the operating element is substantially unprotected. Does not cause pressure fluctuations to the pressure control part. It has the advantage that it can be opened and closed virtually between the two and can be used for precision surface fluid pressure control systems.

[Brief explanation of the drawing]

[Figure 1 is a longitudinal side view showing an embodiment in which the control valve loading of the present invention is applied to a physical force treatment device K, Figure 2 is a longitudinal side view of the main part, and Figure 3 is a left longitudinal end view. Fig. 4 is a flat flash cross-sectional view, Fig. 5 is a partially broken left end view, Fig. 6 is a vertical side view on another cross section, Fig. 7
The figure is a right end view partially cut away, and FIGS. 8 to 13 are longitudinal side views showing each functional part taken out. 20...Treatment element, 30...Driving means, 40...Liquid amount supply means, 60...I
J IJ-sense means, 70... Reset means, 7
3... Entrance/exit, 74... Valve body, 61.
...IJ IJ-base member, 611)...
Sliding hole, 610...First operating element, 61e.
...Through hole, 61f...Spring, 6
1g...Second operating element, 61h...
Step, 61j...Notch. Patent "a IJ 11 Tatsuo Okazaki Procedural Amendment (Method) April 13, 1980 Patent Office Chief Onjima 1) Haruki Tono1, Indication of the Case 1982 Patent - Hiroshi No. 1903952, Title of Invention 3, Amendment Relationship with the case of the person who made the amendment Address: No. 18-4, Nishi 2-7, Kamifukuoka City, Saitama Prefecture Date of amendment order: March 30, 1980 (shipment date) & WA side subject to amendment

Claims (1)

[Claims] In a device in which the pressure-controlled part and the non-pressure-controlled part communicate with each other or are disconnected by a t-line, the non-pressure-controlled part is connected to the non-pressure-controlled part in the center with respect to the sliding hole communicating with the pressure-controlled part. The operating element Yt of WJI having a communicating through hole is fitted in a liquid-tight and slidable manner. The operating element 3112 is located on the pressure-controlled portion side, and is capable of contacting the operating element III in a fluid-tight manner and is elastically supported toward the operating element III. It is possible to follow a portion of the stroke of the first operating element. At its operating limit, the above II2
1. A controlled pulp device, wherein the through-hole and the pressure-controlled portion are communicated with each other when the operating element *i is separated from the operating element *i.