JPS6127343A - Throttle valve device - Google Patents

Abstract

PURPOSE:To produce throttle pressure accurately by rotatably mounting cam means having cam surfaces for displacing valve elements of throttle valves on a support shaft supported by a bracket. CONSTITUTION:A support shaft 71 is supported by a bracket 60 fixed to valve bodies 2, 32, and cam means 51, 52 having cam surfaces 53, 55 for displacing valve elements 5, 35 of throttle valves 1, 31 are rotatably mounted on the support shaft 71. In this arrangement, there is little error in set position relationship between the cam means 51, 52 and the valve elements 5, 35, so that the respective throttle valves 1, 31 are forced to produce throttle pressure corresponding to throttle openings accurately.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a throttle valve device that displaces a pressure regulating means of a throttle valve disposed in a hydraulic circuit of an automatic transmission in accordance with the throttle opening of an engine. Regarding.

[Conventional technology]

As vehicles with automatic transmissions become more widespread, the shifting performance of automatic transmissions has also come to be critically evaluated. In particular, the shift shock that occurs when changing the gear train and changing the gear ratio is evaluated intuitively and is a matter of concern even if it is slight. There are many ways to alleviate or eliminate this shift shock.
A device has been proposed and put into practical use.

Additionally, with the shift to front-wheel drive vehicles (front-engine, front-wheel drive), there is a demand for automatic transmissions to be smaller and lighter.

By the way, the basic method of controlling automatic transmissions to smoothly shift gears is to change the pressure of the fluid that operates the frictional engagement means that governs gear shift control, that is, the main pressure, in response to the output of the engine. . Normally, the main pressure is changed by a throttle valve device that generates a pressure (throttle pressure) that corresponds to the throttle opening of the engine. Furthermore, this throttle pressure is also used as a signal to switch the shift control valve in cooperation with the governor pressure corresponding to the vehicle speed.

As a throttle valve device, one is known that converts the displacement of a cable connected to the throttle of an engine into rotational motion, transmits it to cam means, and causes the cam means to displace and operate the pressure changing means of the throttle valve. This device is
A general rotating cam is used as the cam means, and the cam means is
The throttle valve and the pressure transformation means connected in series with the throttle valve are positioned facing the fitted valve hole, and are supported by screwing a shaft arranged at a position perpendicular to the extension line of the valve hole into the valve body. There is.

[Problem that the invention seeks to solve]

When trying to make the automatic transmission shift more smoothly,
It is desirable to use multiple throttle valves to generate pressure in each valve with different throttle pressure characteristics corresponding to various conditions, and to use these throttle pressure characteristics to control or operate the corresponding equipment in the hydraulic circuit. .

For this purpose, it is necessary to apply the cam means to the two throttle valves and to separately set the displacement of the pressure regulating means of the throttle valves with respect to the rotation of the cam means, as necessary.

However, on the other hand, with the shift to front-wheel drive vehicles, there is a demand for smaller and lighter automatic transmissions, and two throttle valve devices are housed in the limited space of the transmission case, and each throttle valve is There is a provision that cam means must be attached to the engine, and each cam means must be connected to the throttle of the engine.

Furthermore, in order to alleviate or eliminate shift shifting, it is necessary to operate the throttle valve with high precision.

However, in the configuration of conventional throttle valve devices, it is difficult to accurately drill a threaded hole in the valve body for the shaft that supports the cam means, and it is necessary to prevent variations in the screwing position of the support shaft to the valve hole between products. Therefore, there was a problem in that the positioning had to be done with great care. Furthermore, with this device, there is a possibility that the threaded connection between the valve body and the shaft may become loose due to frequent camming.

This invention was made in order to meet the above requirements and solve the above problems.The purpose of the invention is to enable the transmission to be housed in a limited space within the transmission, and to adjust the position of the shaft that supports the cam means in a mounting manner. It is an object of the present invention to provide a throttle valve device that can accurately generate a throttle pressure corresponding to a throttle opening degree without greatly changing depending on the throttle opening.

[Means for solving problems]

The throttle valve according to the present invention comprises: a throttle valve for adjusting pressure; A bracket fixed to the valve body and a support shaft supported by this bracket are rotatable on a plane perpendicular to the axis of the valve hole formed in the body and a plane parallel to the axis. a cam means which is attached to the throttle valve and has a cam surface for displacing and operating the pressure changing means of the throttle valve; an input member that connects and obtains an input signal for rotating the cam means with a throttle of the engine; and biasing means for applying rotational force to the cam means.

Further, the throttle valve device according to the present invention includes first and second throttle valves disposed adjacent to each other. a second at least two throttle valves; a valve having a substantially U-shape having substantially parallel sides upright from both sides of the bottom, bent from the both sides and formed in the valve body; It is composed of a first mounting part having a surface perpendicular to the axis of the hole, and a second mounting part having a surface parallel to a plane containing at least two axes of the valve hole. a bracket screwed onto the body; a support shaft supported by the bracket; and a first cam rotatably mounted on the support shaft and having a cam surface that displaces and operates the pressure transformation means of the first throttle valve.
A cam means including a second cam connected to the first cam and having a cam surface that displaces and operates the pressure changing means of the second throttle valve, and an input signal for rotating the cam means is linked to the throttle of the engine. the first and z2 throttle valves are arranged adjacent to each other; in this case, the valve The body can be of one-piece construction. A portion for mounting and fixing the mounting portion of the bracket is formed on the front surface of the throttle/valve, and the cam means assembled within the bracket is assembled in alignment with the pressure changing means of the throttle valve.

The interlocking of the second cam with the first cam by the cam means can be achieved by means of meshing means formed at the ends of opposing bosses of both cams. Furthermore, if the cam means is provided with a stopper that comes into contact with the side surface of the pressure transformation means of the first throttle valve on the cam surface of the first cam, the rotational position of the first force J1 when the throttle opening is zero is reliably determined. be able to.

A torsion spring is selected as the biasing means, this torsion spring is wound around the outer periphery between the first and second cams, and one end of the torsion spring is connected to the first or second cam.
By fixing it to one of the cams and fixing the other end to a location other than the first and second cams, it is possible to apply a rotational force to the cam means that opposes the input signal. In this way,
Effective biasing action can be performed in a narrower space.

Furthermore, if a wire connected to the throttle of the engine is used as the input member and the wire is wound and guided around the outer periphery of the rotating cam, the torque required to rotate the cam can be reduced.

It goes without saying that the cam surfaces of the cams that apply displacement to the pressure regulating means of the throttle valve in accordance with the throttle opening are formed in shapes that provide desired throttle pressure characteristics.

In assembling the throttle valve device, first, both cams connected by a meshing means are housed in a substantially U-shaped plug, and a support shaft is passed through the holes of both cams from the side of the bracket to be rotatably supported. Next, the mounting portions of the brackets are placed on predetermined positions on the front surfaces of the first and second throttle valves and fixed with fixing means such as bolts. Finally, an input member that is linked to the throttle of the engine, such as a wire that is linked to the throttle of the engine, is wound and fixed around the outer periphery of the cam.

[Effect]

In this throttle valve device, when an accelerator pedal is pressed, for example, the cam is rotated by an input member that is linked to the throttle of the engine, and the cam is formed to obtain desired throttle pressure characteristics in accordance with the throttle opening degree. The surface displaces the throttle/help pressure changing means to change the pressure regulating means. Since the first and second cams are set correspondingly to the first and second throttle valves, throttle and torque pressures that improve shift performance are generated. Throttle pressure generated in each valve corresponding to the throttle opening can be used as back pressure to determine line pressure, allowing highly accurate pressure oil to be supplied to hydraulic equipment, and other One is to determine the precise switching timing of the shift valve by acting on the shift valve as a back pressure that opposes the governor pressure. Further, when the pressure transforming means is used as a switching valve for hydraulic equipment, the hydraulic equipment is operated accurately in accordance with the throttle opening. If the amount of depression of the accelerator pedal is increased, the cam will rotate further, and if the amount of depression of the accelerator pedal is decreased, the cam will be returned to its original position by the restoring force of the pressure regulating means or the urging means.

Even when the throttle opening decreases, both valves and the cam means are assembled with integrity between the two mounting parts of the bracket and the valve body, so accurate throttle pressure corresponding to the throttle opening can be generated. is possible,
Hydraulic equipment can be operated accurately.

〔Example〕

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

The first throttle valve 1 shown in FIG. 2 is a throttle valve for shift control, and has an output port connected to one back pressure port of a plurality of shift valves, and a governor pressure port connected to the other back pressure port. They work together to operate the shift valve and appropriately select a frictional engagement device connected to the shift valve to perform a gear change corresponding to the throttle pressure and vehicle speed. The first throttle nozzle help 1 also outputs a release signal to the lock-up relay valve when the throttle opening is near zero.

The lock-up relay valve is a valve that receives a signal from the first throttle valve and releases the direct connection between the torque controller and the pump and the turbine.

The first throttle valve l has a valve hole 2a in the valve body 2.
A spool 4 with a spring 3 installed in front of it on one side (left side in the figure), a pressure transformation means 5 disposed in series with the spool 4, and a pressure regulating spring disposed between the spool 4 and the pressure transformation means 5. pressure regulating means) 6. The plunger 5 is guided by a sleeve 7. The sleeve 7 is fixed to the valve body 2 by a pin 8. Three lands 10, 11.degree. 12 are formed on the spool 4 from the direction of the front spring 3, and correspondingly, three ports 13, 14.15 are formed on the valve tenon 2. In this example, lands 11 and 12 have the same diameter, and land 10 has a smaller diameter. The center port 14 is a pressure oil supply port from the pump, and the right port 15 is an output port, which is connected to the left back pressure port 13 via a throttle means, and also provides back pressure that counteracts the governor pressure of the shift valve. connected to a port.

Three lands 16, 17 and 18 are also formed on the pressure transformation means 5, and correspondingly five ports 19a are formed on the valve body 2 via the sleeve 7.

19b, 20a, 20b, 20c are formed.

port on the left side of the diagram) 19a is port 13 on the spool 4 side
When the throttle opening is substantially fully open, the port 19b communicates with port 1 of the shift valves 1-2 and 2-3, for example. Port 19 in this case
The output of b is used as a kickdown signal. Poe)
20a is provided very close to the land 18 of the pressure transforming means 5, and pump pressure is introduced near zero throttle opening. Port 20b is an output port and is connected to a back pressure port of the lock-up relay valve.

Port 20c is located slightly to the left of output port 20b,
Used as a lock-up relay valve exhaust port.

This first throttle valve 1 is arranged between a transmission case 22 and an oil pan 23, and a lower valve body 26 is arranged below the valve body 2 with a gasket 24 and a plate 25 in between. Furthermore, a strainer 28 is provided below.

The second throttle valve 31 is constructed as shown in FIG. This second throttle valve 31 is a throttle valve for main pressure control, and uses pressure oil from the pump to control the throttle opening by using the hydraulic pressure regulated according to the throttle opening to act as back pressure on the regulator valve. Adjust the main pressure in the oil passage to adapt to the

This second throttle valve 31 is a spool having a spring 33 in front of it on one side (left side in the figure) within a valve hole 32a of a valve body 32 that is integrally constructed adjacent to the valve body 2 of the first throttle valve 1. 34, the spool 3
4, and a pressure regulating spring (pressure regulating means) 36 disposed between the spool 34 and the pressure transforming means 35. This transformation means 35 is guided by a sleeve 37. The sleeve 37 is fixed to the valve body 32 by a pin 38.

Four lands 39, 40, 41, and 42 are formed on the spool 34 from the direction of the front spring 33. In this example, the lands 41 and 42 have the same diameter, the land 40 has a smaller diameter, and the land 39 has a larger diameter. Correspondingly, four ports 43, 44, 45, and 46 are formed in the valve body 32. Port 45 is the input port from the pump. The pressure oil whose pressure is regulated in the land 41 is outputted from the port 46.

The port 46 is connected to a back pressure port of the regulator valve, a drain port via a throttle means, a port 43 via a cutback valve, and a port 44 via a throttle means. The cutback valve is operated by governor pressure to communicate ports 46 and 43.

Two lands 47 and 48 are connected to the land 48 in the transformer means 35.
The diameter of the land 47 is formed larger than that of the valve body 3.
2 has a port 49 formed through the sleeve 37. This port 49 is connected to a back pressure boat 43 on the spool 34 side. Pressure oil input from the port 49 acts to move the pressure changing means 35 to the left.

As shown in FIG. 1, these two throttle valves 1 and 31 are arranged parallel to each other and adjacent to each other with their transformer sides aligned. In the figure, the second throttle valve 31 is arranged in front of the first throttle valve 1.

As shown in FIGS. 4 to 7, the cam means 50 includes a first cam 51 that displaces and operates the pressure transformation means 5 of the first throttle valve l, and a pressure transformation means of the second throttle valve 31 that operates in conjunction with the first cam 51. The second cam 52 displaces and operates the second cam 35.

The first cam 51 has a cam surface 53 formed on its outer periphery for displacing the pressure changing means 5, and a post 54 formed in the axial direction. As can be seen from FIG. 2, the cam surface 53 is provided with a stopper 53a that comes into contact with the transformer means 5 to determine the position of the cam 51 when the throttle opening is zero. Similarly, the second cam 52 has a cam surface 55 formed on its outer periphery for displacing the plunger 35, and a post 56 formed in the axial direction. The second cam 52 is connected to the first cam 5 at the tips of the opposing bosses 54 and 56.
The meshing means 57 (Fig. 4) can be rotated in conjunction with the
is provided. In this example, the meshing means 57 has half of the tips of the opposing posts 54 and 56 of both cams 51 and 52 cut out so that the first and second cams 51 and 52 are interlocked in parallel, and the remaining tip half 58 .59 is the opponent's pos 56
It is designed to fit into a notch of 54°. In addition to this example, the meshing means can also be configured such that tooth profiles formed on the side surfaces of both bosses 54, 56 mesh with each other.

Plug nt 60 housing cam means 50 (FIG. 5)
are substantially parallel side parts 62 and 63 that are folded up from both sides of the bottom part 61.
and a first mounting portion 64 bent from both side portions 62 and 63.
65 and a second attachment portion 66, and is generally formed into a substantially U-shape. The surfaces of the first mounting portions 64, 65 are bent into a plane perpendicular to the axes of the valve holes 2a, 32a formed in the valve body 2°32, and the surfaces of the second mounting portions 66 (fourth
The fold of the figure) is bent in a plane parallel to the plane containing the two axes. The position of the first mounting portion 64,65 can be determined at a distance of X with reference to the axis of the pin 8, as shown in FIG. Further, the position of the second mounting portion 66 can be determined at a distance Y using the axis of the valve hole 2a as a reference. The reason why the pin 8 and the valve hole 2a are used as a reference is that it is easy to determine the positional relationship between the cam means and the port of the throttle valve, and it is also easy to determine the position when the throttle opening is zero. Each mounting portion 64, 65, 66 has a bolt hole 67, . 6
8.69 is formed. The bracket 60 is screwed directly onto the front surfaces of the valve bodies 2 and 32, which are integrally formed adjacent to each other, by three bolts 70.

The cam means 50 is supported within the bracket 0 by a support shaft 71 passing through both sides 62,63. The position of the support shaft 71 in the plastic bracket 60 is based on the above-mentioned X and Y dimensions, and as shown in FIG. Valve hole 2a in the distance.

It can be accurately defined in correspondence with 32a.

Bearings 72.73 for smooth rotation are arranged between the support shaft 71 and the cam means 50, and both bearing links 72.7
A cylindrical holding member 74 that keeps both cams 51, 52 concentrically is fitted between the two bosses 54, 56. Apart from this example, it is also possible to maintain the double blades 7s 51 and 52 concentrically by fitting a holding member to the outer periphery of both bosses 54 and 56. In this case, the above-mentioned meshing means can also be provided between the bosses 54, 56 of both cams and the holding member 74, and the meshing means in that case will be a spline fit. The support shaft 71 is prevented from being pulled out by a snap ring 75 provided on the outside of the side surface 62, and is prevented from rotating by a member 76 provided on the outside of the side surface 63.

The urging means 80 for returning the cam means 50 is composed of a torsion spring. torsion spring 80
is wound around the outer periphery of the bosses 54 and 56 of both cams 51 and 52, one end 81 is locked at an appropriate position on the first cam 51, and the other end 82 is a hook formed by cutting out a part of the bracket 60. The torsion spring 80 is locked to the portion 83 with a certain amount of twist applied to the torsion spring 80 itself (FIG. 6). One end 81 of the torsion spring 80 is connected to the second cam 5 parallel to the first cam.
2 can also be locked.

As shown in FIG. 2, a cable 84 can be used as an input member for rotating the cam means 50 in response to the throttle opening of the engine. One end of the cable 84 is connected to the throttle of the engine, and the other end is guided by a groove 85 formed on the outer periphery of the first cam 51 in a portion that does not constitute the cam surface 53, and further connected to a locking piece 86 of the cable 84 at the tip. is locked in a recess 87 formed at an appropriate position on the outer periphery of the cam.

Note that the cam surfaces 53.5 of the first and second cams 51.52
A roller 88,
89 is arranged to ensure smooth rotation of the first and second cams 51,52.

In assembling the throttle valve device having the above configuration, first, the torsion spring 8 serving as the biasing means is attached to the boss 54, 56 of the first or second cam 51, 52.
Both cams 51.5 are wound around the cylindrical holding member 74.
The two meshing means 57 are made to face each other and fit together. Furthermore, the bearings 72.7 are inserted from both sides so that the holding member 74 is in the middle.
Insert 3. Cam means 5 assembled in this way
0 indicates both side portions 62.0 of the bracket 6o whose both side surfaces are approximately U-shaped.
The bearings 72, 73 and the holding member 7 are housed from the top of the bracket 60 in parallel with the support shaft 71 inserted from the side 63 of the bracket 60.
It is supported through 4. The support shaft 71 is a bladder, -/
) A snap ring 75 is fitted from the outside of the side 62 of 60 to prevent it from coming out, and a member 76 is inserted from the outside of the opposite side 63 to prevent rotation. Next, one end of the torsion spring 80 is engaged with the first cam 51 at an appropriate location, and the other end is engaged with the hook portion 83 of the bracket 60 by twisting it. Putekette assembled in this way)
Reference numeral 60 denotes the front surface of the pulp bodies 2 and 32 which are integrally constructed, and the first mounting parts 64 and 65 are perpendicular to the axes of the valve holes 2a and 32a, and the second mounting parts 66 are perpendicular to the axes of the valve holes 2a and 32a.
The pulp body 2.32 is screwed into the main body with a bolt 70 in a plane parallel to a plane including at least two axes of the pulp body 2.32. 1st
As shown in FIG. 8 and FIG. 8, the bracket 60 is fixed to the pulp body 2.32 at three locations and in two directions, so the dimensional accuracy of the position is high, and the throttle pressure setting error due to the mounting method is minimized. I can do it. Finally, attach the locking piece 86 of the cable 84 to the recess 87 of the first cam 51.
and the cable 84 is placed in the groove 85 of the first cam 51. The rear end of the cable 84 is connected via a support member to, for example, an accelerator pedal, which is connected to the throttle operation of the engine.

[Effect]

In the throttle valve device of the present application, for example, when the accelerator pedal is depressed, the engine throttle opens according to the amount of depression, and in conjunction with this, the cable 84 that is wound and guided around the outer circumferential groove 85 of the first cam 51 is pulled. . First cam 51
is rotated by the cable 84 according to the amount of depression, and the second cam 52 is rotated in conjunction with the engaging means 57.

The rotation of both cams 51,52 drives the pressure changing means 5.35 in the sleeve 7.37 via the rollers 88, 89 against which the respective cam surfaces 53,55 come into contact, and the pressure regulating springs 6,36 are moved on each side. Deflect and apply different loads to each. The supply oil pressure is regulated in accordance with the load of the pressure regulating spring 6.36, and each throttle pressure is adjusted to 15.46
is output from.

Throttle pressure is the back pressure port of each valve 1.31) 13
．． 44, and when the amount of hydraulic oil coming out of the output port 15.46 increases and the throttle pressure decreases, the spool 4 retreats and the valve (land 11.41)
) opens, and at the same time the throttle pressure approaches the throttle pressure according to the throttle opening degree, a stable supply of hydraulic oil is performed.On the contrary, when the amount of hydraulic oil decreases, the spools 4, 34 move forward and the valve (land 11...) opens. 41) and adjust the throttle pressure to a predetermined value.

When the amount of depression of the accelerator pedal is reduced, both cams 51, 52 are rotated in the opposite direction by the pressure regulating spring 6, 36 and the torsion spring 80 until the accelerator is opened.

Following this, the pressure changing means 5.35 also operates, and the valve operation as described above is performed.

Next, the operation of this throttle valve device will be explained based on the hydraulic circuit diagram shown in FIG. In this figure, 100 is a pump, 101 is a regulator valve, 102 is a governor valve, 10
For example, 3 is a 2-3 shift valve, 104 is a lock-up control circuit, and 105 is a cut bank pulp.

When the engine is started with such a circuit diagram, the pump 100
Pressure oil flows from the regulator valve 101 through the line L1,
The governor valve 102, the shift valve 103, the input ports 14, 19a, 20a and the second
It is supplied to the input boat 45 of the throttle valve 31.

The main pressure of the line L1 input to the port 45 of the second throttle valve 31 is regulated by the pressure regulating spring 36 and outputted from the port 46 as throttle pressure. The throttle pressure is further regulated by being fed back to the back pressure port 44 on the spool 34 side via the back pressure boat 49 on the pressure transformation means 35 side and the orifice. The throttle pressure of the second throttle valve 31 acts on the back pressure boat of the regulator valve 101 via the line L2, and the regulator valve 101 causes the line L
The main pressure of No. 1 is regulated to a pressure according to the throttle opening.

The main pressure of the line L1 input to the port 14 of the first throttle valve 1 is regulated by the pressure regulating spring 6 and outputted from the port 15 as throttle pressure. This throttle pressure is normally set to a different value from the throttle pressure of the second throttle valve 31. The throttle pressure of the first throttle valve 1 is transmitted to the shift valve 103 via line L5.
is applied to one of the back pressure ports.

Governor valve 102 outputs an output corresponding to the vehicle speed to line L3. The output of line L3 is the governor pressure at the shift valve 10.
3, that is, the back pressure port opposing the throttle pressure, and also acts on one back pressure port of the cutback valve 105.

When the amount of depression of the accelerator pedal, which is connected to the cam 51 and the cable 84, is shallow and the throttle opening is close to zero, the ports 20a and 20 of the first throttle valve 1
b is in communication, and the main pressure of line L1 is output to the lockup control circuit 104 via line L4. The lock-up control circuit 104 operates the torque converter in its normal operation while the pressure on line L4 is input.

When the accelerator pedal is slightly depressed from around zero throttle opening, the cam 51 and the cam 52 interlocked with the cam 51 are rotated by the connected cable 84, and the port 20b and port 20C of the first throttle valve l are communicated with each other. . This communication eliminates the pressure in line L4, and lockup control circuit 104 directly connects the torque converter pump and turbine. Further, the rotation of the cam 51 displaces the pressure changing means 5, compressing the pressure regulating spring 6, increasing the output of the port 15, and increasing the force acting on the shift valve 103. At the same time, the pressure changing means 35 of the second throttle valve 31 is displaced by the rotation of the cam 52, the pressure regulating spring 36 is compressed, and the output of the port 46 is increased. As the output of the engine increases, the discharge force of the pump lOO also increases, but since the output of the port 46 of the second throttle valve 31 acts on the regulator valve 101, the main pressure in the line L1 becomes a pressure proportional to the throttle opening. Furthermore, as the throttle opening increases, the vehicle speed increases, and the governor valve 10
The output of No. 2 also begins to increase rapidly.

Furthermore, when the throttle opening degree increases by depressing the accelerator pedal, the gas pressure acting on the shift valve 103 overcomes the throttle pressure of the first throttle valve 1, and the shift valve 103 is switched and the gear is shifted from L to H. .

The accelerator pedal is further depressed and the throttle opening is 85.
When the temperature approaches 10°, the cam 51 rotates in conjunction with the cable 84, the plunger 5 of the first throttle valve 1 is displaced, and the bow 19a and port 19b communicate with each other. Due to this communication, the main pressure in line L1 acts on shift valve 103 through line L6 in opposition to governor pressure.

Apart from this operation, when a certain vehicle speed is reached, the cutback valve 105 is operated by the governor pressure, and the port 46 of the second throttle valve 31 and the port 43 communicate with each other. Due to this communication, the output of the port 46 decreases and the regulator valve 10
1 increases, the main pressure in line Ll decreases and is maintained at a certain predetermined value.

The operation for reducing the accelerator opening degree by decreasing the amount of depression of the accelerator pedal is the reverse of the above operation. In this embodiment, the case where there are two throttle valves has been explained, but in the case where there is one throttle valve, the present invention
and three cases.

〔Effect of the invention〕

According to the present invention, since the first and second throttle valves are arranged adjacent to each other and the cam means is housed in a bracket and attached to the front surface of the valve body, the entire throttle valve device can be made compact, and the limited space of the transmission case can be reduced. By arranging two throttle valves in the space and attaching cam means to each, it became possible to connect each cam to the throttle of the engine.

In addition, since the bracket is mounted in direct relation to the valve body, there is little error in the setting positional relationship between the cam means and the pressure transformation means, and the throttle pressure corresponding to the throttle opening can be accurately applied to each throttle valve. It is now possible to generate. Furthermore, since the position of the cam when the throttle opening is zero is regulated in relation to the plunger, it has become possible to perform an accurate sequence.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line II-II in Fig. 1, Fig. 3 is a sectional view taken along -■ in Fig. 1, and Fig. 4 is a cam means. Fig. 5 is a cross-sectional view taken along line A-A in Fig. 4, and Fig. 6 is a cross-sectional view taken along line B in Fig. 5.
-B sectional view, Figure 7 is the left side view of Figure 4, Figure 8 is the 1st
The front view of the figure and FIG. 9 are hydraulic circuit diagrams in which the throttle valve device of the present invention is used. 1. First throttle valve 2.32.
, Valve body, 2a, 32a, Valve hole, 5.35. ,,,,transforming means, 6.36. , , Pressure regulating spring 31 , , Second throttle valve 50 , ,
, Cam means, 51, First cam, 52, Second cam, 53.55. ,,cam surface, 54.56. , Boss, 57, Engagement means, 60, Plaque, 61. , , , -0 bottom, 62.63. ,,,Side part, 64.65,66,,Mounting part, 71,,,,,,Support shaft, 74,,,,=Holding member, 80,,,,,,,,--)-Sub 1 Ring, 8i, , , , , - Cable (man-powered component) Applicant Aisin Seiki Co., Ltd. Toyota Motor Corporation Agent Patent attorney Asamichi Kato 1 ... . L7°゛232・・・・Valve main line-F51・・・・・・・No. 52・・・・・・・Base 2 sword 5355・・・77J] 60...・・・・・・Shimu、To84・・・・・・・・・771P$O(Tai--7″J
g) Engraving of the drawings (no changes to the contents) Figure 4 Figure 5 Figure 6 Figure 7 Procedure amendment (voluntary) August 1980 # Fraud Agency Director General Manabu Awaki 1 Indication of the incident 1982 Patent Application No. 146930 (filed on July 17, 1980) 2 Name of invention Throttle valve device Name (001) Aisin Seiki Co., Ltd. (1 other person) Representative Reio Gyudon Name (8081) Patent attorney Asamichi Kato・′1″;
-1-5 Date of amendment order Spontaneity 6 Number of inventions increased by amendment None 7 Target of amendment Pursuit of official drawings 8 Contents of amendment Procedures as shown in the attached document Shinbo Seisho (spontaneous) October 5, 1985 Patent Office Director General Uga Michibu l Display of the case Patent Application No. 146930 of 1982 (filed on July 17, 1988) 2 Name of the invention Throttle valve device 3 Person making the amendment Relationship to the case Name of the patent applicant (001 ) Aisin Seiki Co., Ltd. (1 other person)
4 Agent address: 4th floor, Fuji Annex Building, 1-12-6 Nishi-Shinbashi, Minato-ku, Tokyo Phone: (03) 508-0295 Detailed explanation column and drawings ρO, IO, ”: i j Contents of amendments ■The scope of claims section of the specification is amended as shown in the attached sheet. ■The column of detailed explanation of the invention is amended as follows: 1) Page 4 of the specification, lines 6 and 9, Page 6, lines 14-15. Correct "voltage transformation means" in line 19 to "valve element." 2) In lines 6 to 7 of page 6, correct "No change, . . . responded" to "No change, response to the torque request signal (throttle opening, etc.) of the two engines." 3) On page 7, lines 1 and 2, correct "in conjunction with the throttle" to "in response to a torque request signal." 4) Correct "transforming means" to "valve element" in lines 16 and 18 of the same page and lines 9 and 15 of page 8. 5) “Interlocking” on page 8, line 13 and page 9, line 16 is “connecting”
Correct. 6) On page 9, lines 11-12, "throttle opening... to the means" is corrected to "according to the torque request signal (e.g. throttle opening) to the valve element of the throttle valve" 7) No. 1 O
In lines 1 and 2 of pages, "in conjunction with the engine's throttle" is corrected to "responses to the engine's torque request signal." 8) Page 10, lines 10-11, [Displace the transformer means]
should be corrected to "by displacing the valve element (plunger)." 9) On page 11, line 1, "voltage transformation means" is corrected to "valve element." 10) Page 12, line 11, page 13, line 6, line 15, line 15
1 line per page. Line 3, page 16, line 1, line 6, line 9, line 14, line 16, line 11
In line 8, page 17, line 1, "transforming means" is corrected to "plunger." 11) Correct "cutback valve" on page 15, line 16, lines 18-19 to "cutback valve 105". 12) Correct "meshing" to "connection" in lines 7, 9, and 14 of page 17. 13) On page 19, line 3, "from the top surface of the first mounting section" is corrected to "from the end surface of the first mounting section [i4, 65]". 14) In lines 13 and 15 of the same page, correct "meshing" to "connection." 15) Page 20, line 19, page 23, line 7, page 24, line 7,
“Transformation means” on page 25, line 5, and page 27, lines 5 and 9, is “
Plunger”. 16) Correct "meshing j" in line 6 on page 21 and line 4 on page 23 to "connection". mm, page 29, lines 13-14 and page 30, line 12, ``transforming means'' is corrected to ``valve element.'' 18) On page 30, line 20, correct "meshing" to "connection". ■Replace Figures 1, 2, 3, 6, and 9 of one drawing with the attached ones. Claims (1) A throttle valve accommodated in a valve hole drilled in a valve body to adjust pressure oil to a predetermined pressure, a valve element that is displaced to change the adjustment action of the throttle valve, and a valve element disposed in the valve body. A bracket is fixed to the valve body with a plane perpendicular to the axis of the formed valve hole and a plane parallel to the axis, and the bracket is rotatably mounted on a support shaft supported by the bracket. cam means having a cam surface for displacing and operating a valve element of the throttle valve; an input member for receiving an input signal for rotating the cam means in response to an engine torque request signal; A throttle valve device comprising a biasing means for applying rotational force. (2) The first . The second throttle valve has a generally U-shape having at least two second throttle valves and substantially parallel side portions that are folded up from both sides of the bottom portion. A first mounting portion is formed by bending from both sides and has a plane perpendicular to the axis of the valve hole formed in the valve body, and a plane parallel to a plane containing at least two axes of the valve hole. a second mounting part having a surface, a bracket screwed onto the valve body at these mounting parts, a support shaft supported by the bracket, and a second mounting part mounted on the support shaft with zero rotation. 1″7. A first cam having a cam surface that displaces and operates the valve element of the throttle valve; a second cam that is connected to the first cam and has a cam surface that displaces and operates the valve element of the second throttle valve; A throttle valve device comprising: a cam means; an input member that receives an input signal for rotating the cam means in response to an engine torque request signal; and an urging means for applying a rotational force to the cam means in response to the input signal. I % l 1rJ=7Ftb'<'
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Claims (2)

[Claims] (1) A throttle valve that is accommodated in a valve hole drilled in a valve body and adjusts pressure oil to a predetermined pressure, a pressure transforming means that operates to change the adjustment action of the throttle valve, and a valve formed in the valve body. A bracket is fixed to the valve body with a plane perpendicular to the axis of the hole and a plane parallel to the axis, and the throttle is rotatably mounted on a support shaft supported by this bracket. A cam means having a cam surface that displaces and operates the pressure changing means of the valve, an input member that connects an input signal to rotate the cam means with a throttle of an engine, and an attachment member that applies rotational force to the cam means in opposition to the input signal. and a throttle valve device. (2) At least two throttle valves, first and second, disposed adjacent to each other, and a substantially U-shape having substantially parallel side portions that are folded up from both sides of the bottom portion; A first mounting portion that is bent and has a surface perpendicular to the axis of the valve hole formed in the valve body, and a first mounting portion that has a surface that is parallel to a plane that includes at least two axes of the valve hole. It consists of two mounting parts, a bracket screwed to the valve body at these mounting parts, a support shaft supported by the bracket, and a support shaft rotatably mounted on the support shaft,
a first cam having a cam surface for displacing and operating the pressure changing means of the first throttle valve; connected to the first cam;
a cam means including a second cam having a cam surface that displaces and operates the pressure changing means of the second throttle valve; an input member that connects and obtains an input signal for rotating the cam means with a throttle of the engine; A throttle valve device comprising a biasing means for applying rotational force to a cam means.