JPH03225715A - Operation lever device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an operating lever device that detects the inclination angle of a lever with a rotation angle sensor and outputs it as an electrical signal.

[Conventional technology]

An operating lever device disclosed in Japanese Utility Model Application Publication No. 62-140636 is known.

That is, as shown in FIGS. 8 and 9, a lever 2 is provided on the main body 1 of the device so as to be tiltable in the X direction and the Y direction using a universal joint 3.
A pair of first rotation angle sensors 4.4 are provided in the X direction in the device main body 1, and a pair of second rotation angle sensors 5 are provided in the Y direction. 1 gimbal 6, and a pair of 2nd
The rotation axis of the rotation angle sensor 5.5 is connected with the second gimbal 7, and the lever 2 is inserted into the elongated holes 6a and 7a of the first and second gimbals 6.7, and when the lever 2 is tilted in the When the second gimbal 7 swings, the rotation axes of the pair of second rotation angle sensors 5.5 are rotated, and when the lever 2 is tilted in the Y direction, the first gimbal 6 swings, causing the pair of first rotation angle sensors 4 to rotate. , 4 are rotated.

[Problem to be solved by the invention]

In this operating lever device, the base 2a of the lever 2 and the long holes 6a of the first and second gimbals 6.7.

7a, the tilting of the lever 2 will cause the first φ
Since the second gimbal 6.7 cannot be swung accurately, the base 2a of the lever 2 and the long hole 6a.

7a, the base 2a of the lever 2 must be kept in contact with the base 2a of the lever 2 along the elongated holes 6a, 7a of the first and second gimbals 6.7.
Because it slides, it easily wears out, and when it wears out, a gap is created between the base 2a of the lever 2 and the long holes 6 and 7.
The rotation angle sensors 4 and 5 cannot accurately detect the inclination angle of the lever 2 for a long period of time.

In addition, the first and second gimbals 6.7 are thin plate-like bodies curved into a substantially U-shape, and since the gimbals themselves have low rigidity, they tend to bend when the lever 2 is used to swing them. The inclination angle of the lever 2 cannot be transmitted to the rotation axis of the rotation angle sensor, and the detection accuracy of the inclination angle of the lever 2 deteriorates.

Further, a pair of first rotation angle sensors 4.4 in the X direction and a pair of second rotation angle sensors 5.5 in the Y direction are respectively attached to the device main body 1, and their rotation axes 4a+5a
are connected to both ends of the first and second gimbals 6.7, so the first and second gimbals 6.7 are swingably supported by the rotating shafts, and the rotating shafts 4a, 4a And it is difficult to align the centers of the rotating wheels 5a, 5a,
If the center precision is poor, the center of rotation at both ends of the gimbal will shift, making it impossible to swing the gimbal smoothly and causing damage to the gimbal due to excessive force, or the rotation axis 4a when the gimbal is rocked.

Since the rotation angle of the lever 5a is different, the accuracy of detecting the tilt angle of the lever 2 is deteriorated.

An object of the present invention is to provide an operating lever device that can solve the above-mentioned problems.

[Means and effects for solving the problem] A first shaft and a first shaft to which a pair or one rotation angle sensor are connected and first and second receiving members each having receiving pieces on one side and the other side are attached. 2
A shaft, a rod facing the six receiving pieces, and a lever for sliding the rod are provided on the valve body, and each of the one side receiving pieces is inclined upward or downward with respect to the horizontal, and a first
The second receiving member is made movable, and the inclination angle of the lever is adjusted between the first and second receiving members via the rod, the first and second receiving members, and the first and second shafts.
It can be transmitted to the second rotation angle sensor, and the
By moving the receiving member and rotating the first and second shafts, one side receiving piece and the other side receiving piece can respectively abut a pair of rods having uneven heights.

〔Example〕

A mounting screw hole 11 is formed in the upper central part of the valve body 10 by opening on the top surface, and around the mounting screw hole 11, four blind holes 12 are formed at 90 degree intervals so as to draw the same circular locus. hole 1
The bottom of the valve body 10 has a hole 13 that opens into a fourth part I4 formed in the lower central part of the valve body 10, and the recess 14 is closed with a cover 15. The first hole 16.16 and the pair of second holes 17.17 are vertically shifted from each other and are formed opposite to each other with respect to the center of the mounting screw hole 11.

Universal joint 1 attached to the mounting screw hole 11 of the valve body 10
8 is provided with a dish-shaped disk 19 and a lever 20,
The disk 19 can be tilted in the X and Y directions together with the lever 20, and the upper part of the rod 22, which is slidably inserted into each blind hole 12 via the bushing 21, is attached to the spring 21.
It abuts on the lower surface of the disk 19 at point a, and its lower portion protrudes from the hole 13 into the recess 14 .

The first shaft 23 extends between the pair of first holes 1.6, 1.6.
is rotatably supported, and a second shaft 24 is rotatably supported between a pair of second holes 17. The first shaft 23 and second shaft 24 are vertically separated and 90 degrees out of phase. A rotation shaft 25a of a pair of first rotation angle sensors 25.25 is rotatably supported in a staggered manner at both ends of the first shaft 23.

25a, and a pair of rotation shafts 26a, 26a of a pair of second rotation angle sensors 26.26 are connected to both ends of the second shaft 24.

The lower surfaces of the longitudinal center portions of the first and second shafts 23 and 24 are flat surfaces, and the first and second receiving members 2728 are respectively attached with screws 29, and the first receiving member 27 is as shown in FIG. One side receiving piece 31 is located near both ends of the mounting piece 30 in the longitudinal direction.
and the other side bone are integrally provided with the pieces 32 oriented in opposite directions in the transverse direction, and the receiving piece 31 on one side slopes upward, and the piece 32 of the other side bone slopes downward. At the same time, a long hole 30a in the short direction is formed in the mounting piece 30, and the screw 29 is screwed into the lower surface of the first shaft 23 through the long hole 30a. 32 is the first axis 2
3 protrudes in the opposite direction at right angles and faces the lower portions of the two rods 22.

As shown in FIG. 6, the second receiving member 28 has a receiving piece 34 on one side and a piece 35 on the other side facing in opposite directions in the longitudinal direction of the mounting piece 33 at the center of the mounting piece 33 in the longitudinal direction. The receiving piece 34 on one side has an upward hook shape with the rising piece 34a and the receiving piece 34b, and the receiving piece 34b is inclined upward, and the piece 35 on the other side has the rising piece 35a and the receiving piece 34b. Piece 3
5b has an upward hook shape, and the receiving piece 35b is inclined downward, and is attached by screwing the screw 29 into the lower surface of the second shaft 23 through the elongated hole 33a formed in the mounting piece 33 in the transverse direction. The receiving piece 34 and the other side bone piece 35 protrude in the opposite direction at right angles to the second shaft 24 and face the lower portions of the remaining two rods 22.

Here, since the one side receiving piece 34 and the other side bone piece 35 of the second receiving member 28 are bent upward into a hook shape, even if the second shaft 24 is in a lower position than the first shaft 23, each receiving piece The rods 22 are made to have the same height in the vertical direction so that the lengths of the rods 22 are the same.

Note that the second receiving member 28 may have the same shape as the first receiving member 27, and in this case, one side of the second receiving member 28
For the other side bone, the two rods that abut the pieces 34 and 35 may be made longer than the other two rods 22.

When the lever 20 is tilted in one direction in the X direction, one of the rods 22 is pushed down by the disk 19, and the first
The bones on one side or the other side of the receiving member 27 press against the pieces 31.32, causing the first shaft 23 to rotate by a rotation angle proportional to the tilt angle of the lever 20, thereby causing the pair of first rotation angle sensors 25 to rotate.
The rotation shaft 25a of the lever 20 is rotated to detect the tilt angle of the lever 20.

When the lever 20 is tilted in the other direction in the Y direction, the bones on one side or the other side of the second receiving member 28 push the pieces 34 and 35 with the rod 22 to rotate the second shaft 24, thereby causing the pair of second receiving members 28 to rotate. The rotation shaft 26a of the two-rotation angle sensor 26 rotates to detect the tilt angle of the lever 20.

With the above configuration, when the lever 20 is in the neutral position,
It is important that the lower ends of the four rods 22 are in contact with each receiving piece, but due to processing errors of the rods 22, processing errors of the valve body 10, etc., the lower ends of the rods 22 may be in contact with each receiving piece. There are things I don't do.

For example, as shown in FIG.
The lower ends of the two rods 22, 22 facing the receiving pieces 31 and 32 may be vertically shifted by △δ. In this case, loosen the screw 29 and move the second receiving member 27 to the right. While moving and bringing the first receiving piece 31 closer to the rod body 22, the first shaft 2
3 in the direction of the arrow to swing the first receiving member 27 in the direction in which the first receiving piece 31 approaches one rod 22 and the second receiving piece 32 approaches the other rod 22, as shown in FIG. The first
The receiving pieces 34b and 35b of the second receiving pieces 34 and 35 are brought into contact with the lower ends of the two rods 22.

In other words, if the first and second receiving pieces 31 and 32 are parallel to the mounting piece 27, when the first receiving member 27 is swung in the direction of the arrow along with the first shaft 23, the second receiving piece 32 approaches the rod 22. However, the first receiving piece 31 separates from the rod 22, so the first receiving piece 31 is tilted upward and moved to the right so that it can approach the rod 22.

Further, the same applies to the second receiving member 28.

The above operations are performed on the valve body 1o with the rod 22, universal joint 18, disk 19, and operating lever 2o attached.
It is sufficient to invert o and perform the process inside the recess 14.

In the above embodiment, a pair of first and second rotation angle sensors 25, 25 are provided at both ends of the first shaft 23 and the second shaft 24,
26 and 26 were connected to each other, but one first
- The second rotation angle sensors 24 and 25 may be connected to each other.

That is, conventionally, the other of the pair of rotation angle sensors is used as a neutral switch function, and only one rotation angle sensor is required as long as it has a neutral switch function and a rotation angle sensor function.

〔Effect of the invention〕

The inclination angle of the lever 20 is transmitted to the first or second rotation angle sensor 25, 26 via the rod 22, the receiving piece, the first or second shaft 2B, 24, and the first or second rotation angle sensor The tilt angle of the lever 20 can be detected at 25 and 26.

Also, the lever 20 slides the rod 22, and the rod 22 pushes the receiving piece to rotate the first and second shafts 23°24, thereby rotating the first and second rotation angle sensors 25 and 26. Therefore, since there are no sliding parts and there is less wear, the lever inclination angle can be detected with high accuracy over a long period of time, and since each member can be made more rigid and there is no deflection, the lever inclination angle can be detected with high accuracy.

In addition, since the first and second shafts 23 and 24, which have high rigidity, are rotatably supported, not only can the rotation centers of both ends be kept from shifting and rotate smoothly, but also the pair of first and Rotation axis 25a of rotation angle sensor 25.25
, 25a and a pair of second rotation angle sensors 26.2.
Since the centers of the six rotating shafts 26a, 26a can be aligned, the center accuracy can be easily improved when a pair of rotation angle sensors are provided.

In addition, one side receiving piece 31 of the first and second receiving members 27 and 28
．． 34 is tilted upward from the horizontal, the other side bone is 32.35
is inclined downward, so the first and second receiving members 27
．． By moving 28, one side receiving piece 31.34 is attached to rod 2.
2, and even if the lower end positions of the pair of opposing rods 22, 22 are not aligned in the vertical direction, the first and second shafts 23.24 can be moved while moving the first and second receiving members 27.28. By rotating the receiving piece 31°34 on one side and the bone on the other side 32
．． 35 can be brought into contact with the lower ends of the pair of rods 22.

[Brief explanation of drawings]

1 to 7 show embodiments of the present invention, and FIGS.
The figure is a sectional view taken along line I-1 and line nn in Figure 3, Figure 3 is a bottom view, Figure 4 is an exploded perspective view, Figures 5 and 6 are V in Figure 3.
-V line and Vl-Vl line sectional views, Fig. 7 is an explanatory view of the contact adjustment state of the rod and the receiving piece, and Figs. 8 and 9 are longitudinal sectional views and plan views of the conventional example. 10 is the valve body, 20 is the lever, 22 is the rod, 23 is the first
axis, 24 is the second axis, 25 is the first rotation angle sensor 26
27 and 28 are the first and second receiving members for the second rotation angle sensor, 31.34 is a receiving piece on one side, and 32.35 is a piece on the other side.

Claims (1)

[Claims] A first shaft 23 and a second shaft 24 are rotatably supported in the valve body 10 so as to intersect so as not to interfere with each other, and a first shaft 23 and a second shaft 24 are rotatably supported at both ends or one end in the longitudinal direction of the first shaft 23. , a pair or one first rotation angle sensor 25, 25 rotation shaft 25a, 2
5a, and a pair or one second rotation angle sensor 2 is connected to both ends or one end of the second shaft 24 in the longitudinal direction.
A first receiving member that connects the rotating shafts 26a, 26a of 6 and 26, respectively, and that the first shaft 23 is provided with a receiving piece 31 on one side inclined upward from the horizontal and a receiving piece 32 on the other side inclined downward from the horizontal. 27, one side and the other side receiving pieces 31, 3
2 protrudes at an eccentric position from the axis of the first shaft 23 and is attached to the second shaft 24 so as to be movable in the direction of projection, and one side receiving piece 34 is inclined upward from the horizontal and the other side is inclined downward from the horizontal. A second receiving member 28 having a side receiving piece 35 is mounted such that one side and the other side receiving pieces 34 and 35 protrude eccentrically from the axial center of the second shaft 24 and are movable in the direction of the protruding direction. An operation characterized in that a plurality of rods 22 are slidably provided on the valve body 1 facing each of the receiving pieces, and a lever 20 for sliding each rod 22 is tiltably attached to the valve body 10. Lever device.