JPS5889451A - Reinforcing device - Google Patents

Abstract

PURPOSE:To perform an action control of an equipment by a wire by dividing into a low pressure chamber and high pressure chamber with a movable body and by placing an input member in the low pressure chamber side and an output member in the high pressure chamber side so as to use a tensile force as an input. CONSTITUTION:A negative pressure chamber 60 is formed on the left of a movable body 5 and a variable pressure chamber 43 is formed on the right. An input member 10 is connected to a plunger 27 in the movable body 5 and this input member 10 is protruded outward from a main body 2 through the negative pressure chamber 60. This input member 10 is connected to an input equipment such as a pedal, etc. through a wire 78. On the other hand, a pressure guide path forming member 14 is screwed to the hub section 7 of the movable body 5, and a reaction force chamber forming member 20 is formed at the space in the member 14. A reaction force rubber disk 21 is accommodated in this member 20, and furthermore, a reaction force transmission plate 22 and an input transmission ring 23 are provided across the rubber disk 21. An output shaft 19 pierces the member 14, disk 21 and reaction force transmission plate 22 and is engaged with the reaction force transmission 22 by a nut 19a. The output shaft 19 is connected to an output equipment through a wire 90.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an assisting device that obtains an output that is assisted in response to an input, and particularly relates to an assisting device suitable for assisting the operation of a brake or clutch of a vehicle or the like.

Conventionally, this type of device uses pressing force as input.

It is well known to use the pressure of an external pressure source to obtain an output by amplifying the input, and examples include pneumatic boosters that assist the operation of automobile brake mask cylinders. Ru. Also.

Another type is one in which hydraulic pressure is generated by an input, this hydraulic pressure is increased using pressure from an external pressure source, and the increased pressure is used to operate a target device.

As described above, various types have been proposed in the past, but in all of them, the input is a pressing force, not a tensile force.

For this reason, for example, when using a device that is activated by pulling it with a wire, the wire is often arranged relatively freely, so when installing an assisting device, it is necessary to select the input type as described above. The problem is that the places where it can be installed are extremely limited, or it cannot be installed.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide an assisting device that can be operated using a tensile force as input.

This object, according to the present invention, includes a vehicle body having a space in a circular portion, and a movable body that is movably inserted into the space and partitions a low pressure chamber on one side of the front body circle and a high pressure chamber on the other side. an input member connected to the low pressure chamber side of the movable body and protruding to the outside on one side of the vehicle body; and an output member connected to the high pressure chamber side of the movable body and protruding to the outside from the other side of the main body. is provided in relation to the input member, and normally makes the low pressure chamber and the high pressure chamber at the same pressure, and when receiving an input from the input member from the other side of the main body to the one side, the low pressure chamber and a valve device that generates a differential pressure between the high pressure chamber and the movable body toward the blade side, and a pressure guide path and a pressure discharge path provided from the valve device to a pressure source and a release source outside the main body. In the assisting device comprising: the valve device t-controls the valve device to generate a moving force between the input member and the output member according to the input; This is achieved by an assisting device including an output control device that transmits the resultant force with the moving force of the movable body to the output member.

The details of the present invention will be explained below based on the illustrated embodiments.

In the figure, the assisting device according to this embodiment is shown as (1) as a whole.
A lid member (3) is fixed to a bowl-shaped main body (2) via a diaphragm (4). A movable body (5) made of synthetic resin is inserted into the circular space of the main body (2) so as to be movable left and right. The movable body (5) consists of a movable wall portion (6) located within the main body (2) and a hub portion (7) protruding from the lid member (3), which are integrally molded.

A diaphragm (4) is fixed to the movable wall (6), and a negative chamber is formed on the left side of the diaphragm (4), and a variable pressure chamber (43) is formed on the right side of the diaphragm (4).

An intake opening (2a) is formed in the upper part of the main body (2), and a piping cap (8) is fixed to this opening. This mouthpiece (8) is connected to a negative pressure source, for example, a pipe leading to the intake manifold of the engine.The main body (2) is not shown in the figure by a bolt (9) that fixes a holding member ffl, which will be described later. A recess (2b) is further formed in the center of the main body (2), which is fixed to a part of the vehicle body.
The input shaft (10) is inserted into the opening (2c) (10) formed in b). The left end of the input shaft (10) protrudes outward from the main body (2), and the screw hole (10a) described below is inserted into the opening (2c) l). The wire holding bolt σ1 of the input transmission section (ill) is screwed.

The right shoulder part is located in the circle of the main body (2), and its head (10b) is formed at the tip of the plunger (5), which will be described later, and is housed in nine recesses and is prevented from being removed by a retaining ring (4!J). The input shaft Q0 is sealed by a sealing member C11) held by a retaining ring 151) in the recess (2b) of the main body (2), against which a sliding member 18i
It is considered to be T-Noh. The seal member Q1 is a removal prevention member (2
) to prevent removal of the 0 body (2) circular movable wall part (6
) is urged to the right by a return spring (2) stretched in a compressed state between this and the recess (2b) of the main body (2), and is normally pushed through a diaphragm (4). A pressure channel forming member Q4 made of synthetic resin is screwed onto the hub portion (7) of the movable body (5) which is in contact with the lid member (3).
A part of the rubber boot ( ) is hardened between the flange part of → and the end face of the hub part (7). The boot αG is further fixed to the cylindrical portion of the lid member (3) by a tightening ring (A) at the right shoulder portion. This cylindrical part C1'l
A support ring 151 is fitted into the support ring 151, and the hub portion (7) of the movable body (5) is slidable therewith. The support ring 60 is prevented from being removed by a retaining ring.

An air filter (17) (g) is provided between the right end of the boot (c) and the right end of the pressure path forming member a→, and these air filters Q71 (to) are slidably connected to the output shaft α. is inserted. The space inside the pressure guide path forming member α→ has a second
The cylindrical reaction force chamber forming member (the details of which are shown in Figs. A reaction force transmission plate (2) and an input transmission ring (23) are housed in the sandwich. extension (2
Daruma-shaped opening (20a) for engaging the head of 7a)
) is formed, and a plurality (three in the embodiment) of square-shaped bent portions (20b) are formed on the peripheral wall of the output side end.

This prevents the input transmission ring (23) from coming into contact with the rubber disk Cυ for zero reaction force, and the reaction force transmission plate (2).
The reaction force device (419) is constructed by the input transmission ring (c) and the input transmission ring (c), but when assembling the device, the inward protrusion (14a) of the pressure path forming member α→ is slidably fitted into the input transmission ring (c). The output shaft Q is further inserted completely through the inward protrusion (14a) of the pressure guide path forming member α→, the reaction force rubber disk Qυ, and the reaction force transmission plate, and is formed in the proximal part. A nut (19a) screwed onto the threaded portion engages with the reaction force transmission plate (2).Therefore, the output shaft a
The reaction force from the groan is transmitted to the input shaft side.

A rubber valve member (24) is disposed between the reaction force chamber forming member (E) and the plunger (B), and is connected to the hub portion (7) of the movable body (5) by the stopper member (46). Fixed against.

A splash ring (E) is fixed to the left shoulder of the Mayu valve member (foundation), and the valve is held in a compressed state between this ring (E) and the reaction force chamber forming member (four end faces). (Two are supported. On the outside of this valve C!ω, there is a return spring with a relatively large spring force. The splash plate supported by the periphery has a ring (48
It is stretched in a compressed state between the This return spring (A) forces the plunger (5) to the right in FIG. 1 via the reaction chamber-shaped bottom member, and takes the position shown. Further, the valve member 04) is urged to the left in FIG. 1 by the valve spring (c), and normally comes into contact with the ring-shaped protrusion (to) of the plunger as shown.

The input shaft Q1 is connected to the plunger (5) as described above, and is biased to the right by the return spring (2al).

It is sealed by a seal member (44) and is slidably supported with respect to the movable body (5).

In addition, when assembling the plunger (5) and the reaction force chamber forming member (E) into the device (1) circle, the above-mentioned valve member CI! is inserted between them. 4) Interpose a spring (2! 19 (28), etc. as shown in the figure, compress the spring (2! is inserted into the large diameter part of the opening t2oa) on the end face of the reaction force chamber forming member, and is moved in the radial direction to engage the small diameter part. 1st
As shown in the figure, the plunger (27) and the reaction chamber-shaped bottom member are pressed into contact with each other by a spring force and are coupled in good condition.

A plurality of openings 0υ are formed on the right end surface of the boot of9, which communicates with the passage 0 formed in the pressure path forming member α→ through the air filter (17) (toward). ing. This passage 0 side extends in the axial direction of the device and is formed inside the valve member (2). It communicates with space t3 which houses alwo.

The left end surface of the valve member (24) is ring-shaped, and the valve seat 07
). In other words, is this valve seat 0? ) The above-mentioned ring-shaped protrusion (to) is formed at the right end of the plunger (b), and normally comes into contact with the valve seat OD as shown. Therefore, the ring-shaped protrusion (to) and the valve seat C3
7) The intake valve C3F9 is normally closed. A protrusion O1 is formed at the boundary between the movable wall part (6) and the knob part (9) (7), facing the valve seat 07), and is usually separated from the valve seat Gη as shown in the figure. ing. Therefore, the exhaust valve formed by the protrusion C (I) and the valve seat (3'6) is normally open.

A passage (41) is formed in the movable wall part (6) that leads from the negative royal family fiO1 to the space inside the hub part (7). In the normal state shown in the figure, this is a communication chamber formed around the plunger (5). (4 m), and further communicates with the variable pressure chamber (43) through a passage (4'4'e) formed in the radial direction in the movable wall (6). Therefore, under normal conditions, the variable pressure chamber (43 is the negative chamber) Similarly, a relay chamber (4?) is formed around the valve member, but as shown in the figure, under normal conditions, this is a communication chamber (41) and a relay chamber (4?). Next, the input transmission section συ and the output transmission section @, which are connected to the input shaft O0 and the output shaft (2), respectively, will be explained.

The input transmission part συ is a pole hermetically welded to the main body (2))
(9) b It is held by a holding member σj fixed to the main body (2) by a washer (c) and a nut (84).

(10) In the input transmission part σ, the wire insertion fitting σe is held via the clip σSt in the bent part of the holding member σ so as to be aligned with the input shaft C1O. casing (1'0'fr,
Input side wire C:I8 is inserted through it. The wire (layer) is connected to an input device 5, for example a clutch pedal.

The wire drawn out from the metal fitting (/[9) (7 The tip of the barrel is formed in the axial direction of the wire holding bolt σ9, is inserted into the round hole, and the left end @υ of this bolt σ pupil is swaged, so that the wire The ff barrel is fixed to the wire holding bolt) (7i. The wire holding bolt σ is screwed into the threaded hole (10B) of the input shaft α0 at the other southern part. In addition, in this screwing, the round hole of the input shaft Q1 Since the head (10b) can rotate in the circumferential direction, the length of the wire ffl between the input device and the assisting device (1) can be adjusted by rotating the input shaft QO after connecting the wire to the input device. After making the desired adjustment, caulk the left end of the input shaft Q□ as shown and tighten the locking nut Ql'IJt, so that the wire holding bolt σ4 will firmly hold the input shaft QO. It should be noted that the boot ■ made of rubber so as to cover the wire (7 barrel) between the metal fitting σe and the wire holding bolt (79) υ is fixed to the metal fitting (7 (9). The other end of the wire holding bolt (75) is elastically pressed against the caulked portion [F]υ of the wire holding bolt (75).

On the other hand, the output transmission section (17J) is constructed in the same manner, and includes a bolt (7) hermetically welded to the output transmission section (7).
(to) It is fixed to the lid member (3) by a washer [F] 9 and a nut (86), and is held by a holding member σ. Holding member σ4 via the output transmission part (wire insertion fitting i18 in 721?) or clip (c)
The output side wire is inserted into the output side of this metal fitting (87) through a casing made of synthetic resin. The wire (g) is connected to an output device, such as a clutch mechanism.

The tip of the wire wire led out from the metal fitting to the input side is inserted into the hole formed in the direction of the output shaft OIO axis, and then the right end (9υ) of the output shaft α1 is caulked, so that the wire is connected to the output shaft. It is fixed to αe.

In addition, a boot (9) made of rubber so as to cover the wire + n'i between the metal fitting η and the vicinity of the caulking part of the output shaft (II) is fixed to the metal fitting @η at one end, and a It is elastically pressed against the wire.

The assisting device of this embodiment is constructed as described above, but the operation will be explained first. 1. Now, when an input is applied to the wire FF barrel, that is, the input shaft 01 in the direction shown by the arrow,
The plunger (5), and therefore the reaction force δ coupled to it, moves to the left against the return spring (mark 2). At this time, the valve member Q4 also springs (2!9t). - moves to the left through the valve seat 07).This movement first causes the valve seat 07) to
It comes into contact with I, and the exhaust valve (to) closes. As a result, the relay room (47) is cut off from the communication room (41), that is, the pressure change room (43).Therefore, the pressure change room (43) is cut off from the negative pressure chamber.Furthermore, the plunger (b) moves to the left. Then, the ring-shaped protrusion (to) of the plunger (5) separates from the valve seat 07), and the intake valve G!9 opens.
3 is a passage (43% communication chamber Oυ, valve member (space within 24 0
soft, passage 0'IJ and air filter 019 (171
'Ik communicates with the atmosphere. In other words, air flows into the pressure-changing chamber (4 East gate). This creates a pressure difference before and after the movable wall (6), and the movable wall (6) moves to the left against the return spring (toward). to C13) Start moving.

As the movable wall part (6) moves, the good pressure path forming member α and is transmitted to the output shaft α via the reaction force transmission plate (Inc.).

That is, the output shaft Q moves to the left under the assistance of the differential pressure between the left and right sides of the movable wall (6). Therefore, the output wire also moves to the left. Along with this movement, a reaction force is applied to the input shaft (10) via the reaction force device (4St. When this reaction force and the input are balanced, the intake valve O!9 is also closed, and the movement of the movable wall part (6) is stopped. .i.e.

The reaction force rubber disk 1 is now inside the reaction force chamber forming member (E).
The input that is applied to the disk Qυ from the input shaft Q□ including the input transmission ring (c) that is in contact with 2D, and the input that is applied to the disk (
The output shaft (6) is applied to the disk Qυ via the reaction force transmission plate (2).
) side is balanced, the movable wall portion (6) stops, and the output device connected to the output side wire is operated with the desired force.

(14) When the input to the input shaft O0 disappears, the plunger (5) moves to the right after receiving the restoring force (marked by 2), and as shown in the figure, the intake valve 0ω closes fc′t, \In Although.

Open the exhaust valve (to), thereby turning the variable pressure chamber C3 into a negative pressure chamber.
The air line passages (4) in the variable pressure chamber (43, the communication room (41), the relay room 0η1 passage (41, and the negative pressure chamber 11i0)
1ffi and is exhausted to a negative pressure source. Along with this exhaust, the movable wall portion (6) moves to the right under the restoring force of the return spring (to) and stops at the position shown in the figure.

Although the embodiments of the present invention have been described above, the present invention is of course not limited to these, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiment, the left side of the movable wall (6) is used as a negative chamber, and the right side is used as an atmospheric chamber during operation, but instead, the left side is used as an atmospheric chamber and the right side is used as a pressurized chamber during operation. In this case, compressed air from a compressed air source is introduced into the pressure guide path forming member (14), and the negative pressure chamber is communicated with the atmosphere. It is clear that this provides the same effect as the embodiment described above.

Further, in the above embodiment, the valve device was configured by the intake valve 0!19 and the exhaust valve (to), but the present invention is not limited to this, and the differential pressure is applied to the left and right chambers of the movable wall portion (6) at the time of input. Any configuration is applicable as long as it is configured to generate a force and can cause a moving force to be generated in the movable body (5) by another output control member in response to an input.

Further, in the embodiment, the input shaft QO and the output shaft aO are rod-shaped, but these may be replaced with wires.

Further, the reaction force device (451) is not limited to the illustrated structure, and various known reaction force devices can be applied.

As described above, according to the assisting device of the present invention, the input is a tensile force, and by assisting this input, an output of a tensile force corresponding to the input can be obtained. Therefore, it is possible to give an input using a wire and obtain an output corresponding to this input using a wire, and the installation of the device is easy no matter where the device receiving the input and the device receiving the output are located. The desired auxiliary effect can be obtained without requiring a large space.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an assisting device according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of main parts in FIG. 1. FIG. 3 is a front view of the same, and FIG. 4 is a rear view of the same. In addition, in the figure. (1)・・・・・・・・・・・・・・・・・・・・・
・・Assistance device (2)・・・・・・・・・・・・・・・・
・・・・・・・Body (5)・・・・・・・・・・・・
・・・・・・・・・・・・Movable body (6)・・・・・・・
・・・・・・・・・・・・・・・Movable wall part (7)・
・・・・・・・・・・・・・・・・・・・・・・・・ Hub part M・・・・・・・・・・・・・・・・・・・・・・
・Input axis (to)・・・・・・・・・・・・・・・・・・
・・・・・・ Return α→・・・・・・・・・・・・
・・・・・・・・・・・・ When pressure path forming member α...
・・・・・・・・・・・・・・・・・・・・・・・・Output shaft wheel・・・・・・・・・・・・・・・・・・・・・・・・
Reaction force chamber forming member Cυ・・・・・・・・・・・・・・・
・・・・・・・・・Rubber disk for reaction force (2
・・・・・・・・・・・・・・・・・・・・・ Reaction force transmission plate (c)・・・・・・・・・・・・・・・・・・
...... Input transmission ring (24...
・・・・・・・・・・・・・・・ Valve member (c)...
・・・・・・・・・・・・・・・・・・ Valve spring 0
? )・・・・・・・・・・・・・・・・・・・・・・・・
・1 Ranjiya (c)・・・・・・・・・・・・・・・
・・・・・・Return spring (17) 01)・・・・・・・・・・・・・・・・・・・・・
・6 openings (41
・・・・ Between spring housing walls (G) ・・・・・・・・・・・
・・・・・・・・・Respiratory feeling (g)・・・・・・・・・
・・・・・・・・・River... Ring-shaped protrusion 07)...
・・・・・・・・・・・・・・・・・・・・・ Valve seat (
To)・・・・・・・・・・・・・・・ Song・・・Exhaust valve 01・・・・・・・・・・・・・・・・・・・・・
・Protrusion (41)・・・・・・・・・・・・・・・
・・・・・・・・・Communication room (43・・・・・・・・・・・・
・・・・・・・・・・・・・・・ Variable pressure room (4)・・・・・・・・・・・・・・・・・・・・・
Reaction force device (4?)・・・・・・・・・・・・・・・・・・
・・・・・・Relay room－・・・・・・・・・・・・・・・
・・・・・・・・・Negative pressure chamber fft・・・・・・・・・
・・・・・・・・・・・・・・・ Input side wire wire...
・・・・・・・・・・・・・・・・・・ Output side wire agent Yasuo Iisaka (19)

Claims (1)

[Scope of Claims] A main body having a space inside, a movable body movably inserted into the space to partition a low pressure chamber on one side and a high pressure chamber on the other side in the main body, and the movable body. an input member connected to the low pressure chamber side and protruding to the outside on one side of the main body; an output member connected to the high pressure presenting side of the movable body and protruding to the outside on the other side of the main body; The low pressure chamber and the high pressure chamber are provided at the same pressure at all times, and when an input from the input member from the other side of the main body toward one side is received, the low pressure chamber and the high pressure chamber are at the same pressure. An assisting device comprising: a valve device that generates a differential pressure to move the movable body to the one side; and a well-conducted pressure path and a discharge pressure path from the valve device to a pressure source and a release source outside the main body. In the device, between the IIJ input member and the output member,
A moving force is generated in accordance with the input (an input that controls the valve device and is transmitted to the input member; and an output control device that transmits the resultant force of the moving force of the movable body to the output member. A supporting device provided.