JPS5822665A - Fixed jig for rotary driving 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 The present invention relates to a jig for fixing a rotary drive device used in variable damping force type shock absorbers and the like.

In the conventional case, this tank shock f is Δ and C is, for example,
There is something like the one shown in the figure. Namely.

1 is a tube, and piste-/2 is moving inside the tube field.
It is divided into a chamber 6 and a lower chamber 4, and at the end of the piston rod 5,
Fix piston 2 with orifice nut. 7 is the orifice of piston 2, 8e and disc normal valve & 9 are washers. A radial hole 10 and an axial hole 11 are formed in the piston rod 5, and these, the hollow part 12 of the orifice nut 6, and the opening/closing orifice noise 1!I formed in the orifice nut 6 allow the upper and lower compartments to be opened. A control rod 15 rotatably passes through the center of the piston rod P5, and a hollow portion 12 of the orifice nut 6 is attached to the lower end of the control rod 15.
The shutter 16 is fixed inside.

The shutter 16 is composed of a disk portion 16a and a tongue piece 16b, and rotates together with the control rod 15 to open and close the opening/closing orifice 13. The upper end of the piston rod 5 protrudes from the tube 1 and is connected and fixed to the vehicle body side, and the upper end of the control rod 15 is connected to a one-rotation drive device 17.

The rotary drive 17 includes a gear train 18, 19 and a motor 20.
, potentiometer 21, power supply 22, and comparator 23
and an angle setting device 24.

The rotational force generated by the one-rotation drive device 17 is transmitted to the shutter 16 via the control rod [5, and the tongue piece 16b opens and closes the opening/closing orifice 16, thereby increasing the height of the piston 2 by only the orifice 7. A damping force or a low damping force is obtained by this and the opening/closing orifice 13.

However, according to such a conventional example, the orifice nut 6 can be added to the piston rod 5 by simply screwing the orifice nut 6 into the male thread of the piston rod 5 into a fist.

Even if the torque is constant when tightening the orifice nut 6,
A problem frequently occurred in which it was not possible to determine which direction the opening/closing orifice 13 was fixed in in the direction of the rotational force of the orifice nut 60. Further, according to the rotation drive device 17 of such conventional shock absorbers, the angle setting device 2
The comparator 26 compares the reference value of 4 and the output from the potentiometer 21, and the signal outputted by the comparator 26 controls the stain source 22 to activate or stop the motor 20. It was designed to control 150 rotations of the control wand. therefore.

This rotary drive device has a complicated structure, a large number of parts, and a large size.

Therefore, the present inventor separately provides variable damping force type shock absorbers having a rotary drive device 17 and orifice nut 6 fixing means as described below. That is, what is shown in FIGS. 2 and 3 is an embodiment applied to a strut type front suspension.

The tube 1 of this shock I is the strut tube 2 with the steering knuckle 25 fixed to the lower end.
One in six is removably placed inside.

It is a Tino tube type consisting of an outer tube 1a and an inner tube 1b. 5 is a piston rod, the upper end of which protrudes toward the upper blade of the tube 1, and the piston 2 is fixed to the lower end by means described later. The piston 2 divides the inside of the tube 1 into an upper chamber 6 and a lower chamber 4, and communicates between the two chambers 3 and 4 through piston orifices 27 and 28.
Disk knobs 8a and 8b on the upper and lower surfaces serve as check knobs for the piston orifices 27 and 28, and distinguish the five orifices 27 and 28 into orifices on the extension side and the contraction side of the piston rod 5, respectively.

A male thread 29° 30 is formed on the outer periphery of the lower part of the piston rod 5, and a nut 31 is screwed into the upper male thread 29, and a washer 9a, a disc self 8a,
Histone 2. -7' Isknomarf 8b.

Fit the washer 9b onto the piston rod 5, then screw the orifice nut 6 onto the lower male thread 30, and then tighten the nut 31.
．． The above-mentioned parts are fixed between orifice nuts 6. The orifice nut 6 is formed by integrally molding a nut 6a and a cylindrical hollow body 6b, and has an opening/closing orifice 16 oriented in the radial direction in the hollow body 6b. 62 is orifice nut 6
It is a Zorag that blocks the lower part.

The piston rod 5 has a radial hole 1o and an axial hole 11.
are opened, and these and the hollow part 1 of the orifice nut 6 are opened.
A control rod 15 rotatably passes through the center of the piston rod 5, and an orifice nut is attached to the lower end of the control rod 15. A shutter 16 is fixed within the hollow part 12 of 6. The shutter 16 is.

It consists of a disc part 16a with a hole and a tongue piece 16b integrated with the disc part 16a, and rotates together with the control rod F1s.
Constructed to open and close the opening and closing orifice 13,
A protrusion for regulating the rotation angle of the jaw 16 (not shown)
is provided protruding from the inner surface of the orifice nut 6. shirtta 16
A coil spring 33 is compressed between the lower surface of the disk portion 16a and the upper surface of the plug 62.

A control rod 15 is attached to the upper end of the piston rod 5.
A rotary drive device is installed to rotate the . This installation is accomplished by screwing the nut 34 and plate 56 onto the male thread at the upper end of the piston rod 5.

By tightening the nut 34 to the plate 66 side, the plate 66 is positioned in the longitudinal direction and the plate 56 and the piston rod 5 are fixed, and the base 67 of the rotary drive device 17 is fixed to the plate 66 with the screws 38. Eggplant. The rotation drive device 17 includes a base 37, two brackets 40, 40 fixed to the base 37 with screws 39, and both brackets 40.
．． a pair of solenoids 41 and 41 each fixed to 40;
Core 42.42 of each solenoid 1441, 41 and core 4
7 langes 43.45 integral with 2° 42, a reciprocating member 44 that spans between both cores 42° 42 and is rotatable around the core 42.42, and a bin 45 at an eccentric position on the retractable member 44.
control rod 15 at the central position
It consists of a rotary plate 46 that is externally fitted on the upper end.

The upper end of the control rod 15 has a width across flats, and the rotary plate 46 is fitted onto the upper end of the upper end at the center thereof, so that the two become integral in the rotation direction. Solenoid 41.41 and 7 lunges 43.
A shock absorbing washer 47 loosely fitted to the core 42, 42 is interposed between the core 42 and 43.

48. 48 is a harness connected to the power supply.

The upper part of the piston rod 5 supports the vehicle body below the rotary drive device 17. Between the vehicle body and the piston rod (5),
A vibration isolation mechanism and a suspension spring (not shown) are interposed between the vehicle body and the strut tube 26, including a metal plate, a mounting lanomer, and the like. 49 is.

The lower spring seat is a component of the suspension spring and supports the lower end of the suspension spring.

However, in the rotary drive device.

Since the core 42 can move forward and backward with respect to the solenoid 41 and rotate, the moving member 44 can both move forward and backward in the axial direction of the core 42 and rotate around the core 42, and can also move forward and backward. The rotating plate 46 is attached to the material 44 and the bin 45
One rotation plate 46 because it is pivoted so that it can rotate.
is an installation state in which the posture is unstable in any of the following: firstly, in the forward and backward direction with respect to the solenoid 41, secondly, in the direction of rotation around the core 42, and third, in the direction of rotation around the bin 45. It is in.

On the other hand, the shock abnormalities shown in FIGS. 2 and 3 are designed to minimize the mounting space for the one-rotation drive device 17, and to prevent the harness 48 from interfering with other parts. 17, the piston rod 5. control lot)'1'5. Jatsume 16. Control rod 1 of opening/closing orifice 16
The rotational direction position around 5 is specified. For this reason, the rotary drive device 17 has a rotary plate 46 whose position is unstable.

When assembling the piston rod 5 and the control rod 15, the one-turn plate 46 is fixed in the first to third directions, and the relative rotational position between the piston rod 5 and the control rod 15 is specified. Therefore, it is necessary to add a rotary drive device 17.

However, if the one-rotation plate 46 is to be fixed in the three directions manually, the assembling workability of the variable damping force type shock absorber is not satisfactory, and therefore it is not suitable for use by customers.

This invention has been made with attention to these points, and includes a core fixing part that regulates the position of the core in the forward and backward directions with respect to the solenoid, a rotational direction of a rotating plate that is continuous with the core fixing part and relative to the advancing and retracting material, and The purpose is to regulate the movement of all movable parts of the one-turn drive device by a fixing jig having a rotary plate fixing part that regulates the rotational position of the advancing/retracting member relative to the solenoid, thereby solving the above points. It is said that

The present invention will be explained below based on the drawings.

FIG. 4 is a diagram showing an embodiment of the present invention.

First, to explain the configuration, 50 in the figure is a core fixing part;
Also. 51 is a rotating plate fixing part, which is a one-car fixing part 50.5
Reference numeral 1 is made of a synthetic resin material and is integrally formed with appropriate rigidity, and a fixing jig is formed from this. The core fixing part 50 includes an inner fixing plate 52 and an outer fixing plate 5.
3 and an arch-shaped arm 54 connecting the first car fixing plates 52 and 56, and the gap between the first car fixing plates 52 and 53 is as follows:
As shown in FIG. 5 (4), when the 7 flange 43 is pressed against the solenoid 41 on one side (left side in the figure), the total thickness dimension of the solenoid 41 and the 7 lange 43 is also slightly narrower. It is. Therefore, when in use, arm 5
Solenoid 41 with 1 car fixing plate 52.53 due to 40 elasticity
and 7 langes 46 are sandwiched and held. Further, the one-car fixing plates 52 and 53 are provided with elongated holes 52a and 53a, respectively, which open on the side opposite to the arm 54 side and extend toward the arm 54 side.

The width dimensions of both elongated holes 52a and 53a are equal to the outer diameter of the portion of the core 42 closer to the solenoid 41 than the flange 43 and the base 41a of the reno-id 41, and the arc centers 52b and 53b of the ends are Sometimes, it is set to coincide with the center line of the core 42 and the base 41a.

The arm 54 protrudes from the upper end of the inner fixing plate 52 and reaches the upper end of the outer fixing plate 56, and is provided with a protrusion 54a that protrudes upward in the middle thereof.

Further, at the bottom of the rotary plate fixing part 51,
(As shown in BJ, the advancing/retracting member 44 and the rotating plate 4
A formwork chamber 55 is provided, which has the same shape and dimensions as 6, and in which the reciprocating member 44 and the rotary plate 46 are fitted in a fixed positional relationship. This formwork chamber 55 has a core fixing part 50
KXl) - When the movement of the force solenoid 41 and the core 42 is restricted, the position of the rotary plate 46 with respect to the advancing/retracting member 44 is specified by the hole 51a corresponding to the bin 45.

Next, the effect will be explained.

First, one solenoid 41 and the 7-lunge 46 facing this solenoid 41 are brought close together, and then.

The inner fixing plate 52 is on the advancing/retracting member 44 side, and the elongated hole 52a is
, 53a, the inner and outer fixing plates 52 and 53 are externally fitted onto the solenoid 41 and the core 42.

This restricts the relative movement of the solenoid 41 and core 42 in the axial direction. In this case, the movement of the advancing/retracting member 44 fixed to the core 42 in the advancing/retracting direction is restricted;
rotation in the circumferential direction of 2 and a rotating plate 46 centered on the bin 45
The rotation of is not regulated at this stage.

Next, this jig is further pushed in, and the position of the one-rotation plate 46 is matched with the space for the rotary plate in the form chamber 550, and the jig is further pushed deeper. As a result, the rotation of the rotary plate 46 relative to the advancing and retracting material 4tK is restricted, and as shown in the fifth section, both the advancing and retracting material 44° bin 45 and the rotary plate 46 are fitted into the formwork chamber 55. Therefore, the rotational movement of the one-turn plate 46 around the bin 45 is restricted, and at the same time, the heightwise dimension of the formwork chamber 55 restricts the movement of the advancing and retracting material 4.
40 rotations are also restricted, and therefore the rotation of the core 42 is also restricted. This restricts the movement of all movable parts of the one-rotation drive device 17, and also restricts the relative positions of the solenoid 41, core 42, and rotary plate 46.

It is held at the specific position originally set. Therefore, the rotary drive device 17 with this jig still fitted is fitted with its rotary plate 46 into the control rods l'15 of the shock absorbers, while its base 67 is attached to the piston rod 5. By simply fixing, the rotary drive device 17 is fixed at a specific position relative to the shock absorbers in the rotational direction.

In addition, by pulling the protrusion 54a, the jig can be easily removed from the one-rotation drive device 17, and
Since this also serves as a landmark, it can also prevent you from forgetting to tighten the jig.

FIG. 6 shows another embodiment.

In this embodiment, as shown in FIG.
6 and move it as much as possible in the direction of the separating force.

Similar to the embodiment described above, the relative position between the solenoid 41 and the core 42 is regulated. Namely.

Core fixing part 60F of this embodiment! , consists only of a fixing plate 61, and like the inner fixing plate 52 and outer fixing plate 53, this fixing plate 61 is provided with an elongated hole 61a that opens downward. Then, this fixing plate 61 is attached to the solenoid 41.
The rotary plate fixing part 66 is inserted between the core 42Vc and the flange 46 so as to straddle the core 42Vc, and is provided with a formwork chamber 62 in the same way as the rotary plate fixing part 51 in the previous embodiment.
4 and the rotary plate 46, the movement of all movable parts of the rotary drive device 17 can be restricted.

Therefore, this embodiment has a function opposite to that of the jig according to the first embodiment, that is, the first embodiment clamps one solenoid 41 and the flange 43, but the second embodiment By separating the single-force solenoid 41 and the 7-lunge 43.

This is to pinch the other Lunoi 1'41 and the 7 langes 43 together.

A projection 64 is provided on the upper surface of the rotating plate fixing portion 63 in this embodiment. Other configurations and operations are similar to the first embodiment.

Note that the solenoid 41 may be provided only on one side, and the return spring may be provided on the other side.

As described above, the present invention includes a core fixing part that regulates the position of the core in the advancing and retracting directions with respect to the solenoid, and a core fixing part that is continuous with the core fixing part and that controls the rotational direction of the rotary plate relative to the advancing and retracting material and the rotating direction of the advancing and retracting material relative to the solenoid. We provided fixing jigs to regulate the respective positions. For this reason, with one fixing jig.

It is possible to restrict the movement of all moving parts of the rotary drive. Therefore, this rotary drive device.

It can be assembled into other equipment such as
It is possible to perform the process easily and accurately, reduce the number of assembly steps, improve workability, and contribute to mass production.

[Brief explanation of drawings]

The first figure is a partially cutaway front view of the conventional example, FIG. FIG. 3 is a plan view of the rotary drive device shown in FIG. 2, FIG. 4 is a perspective view showing an embodiment of the present invention, and FIG. This shows how the tool is used, as shown in the same figure (4
) is a front view, ) in the same figure is a plan view, FIG. 6 is a left side view, FIG. 6 is a perspective view showing another embodiment, and FIG.
B+ indicates the usage state of the fixed jigsaw shown in Fig. 6.
The inside of the ward is a front view, and the same figure (B) is a plan view. DESCRIPTION OF SYMBOLS 1...Tube, 2...Piston, 5...Piston rond, 6...Orifice nut, 16...Opening/closing orifice, 14...A path, 15...Control rond. 17... Rotation drive device, 41... Solenoid, 42
...Core, 43...Flange, 44...Advancing/retracting material,
45...pin, 46...rotating plate, 50.60...
・Core fixing part. 51.63... Rotating plate fixing part, 52... Inner fixing plate. 53...Outer fixing plate, 52a, 53a, 61a...
Long hole. 54...Arm, 54d, 64...Protrusion, 55.6
2. Formwork room. Patent applicant: Nissan Motor Co., Ltd. Tokico Co., Ltd.

Claims (1)

[Claims] The solenoid, the solenoid's :1a, 1■ attached to the core, and the rotation around =11 M +Jr 11! A jig to be added to a rotary drive device comprising a forward and backward movement shrine, a rotary plate pivotally attached to the movement member at an eccentric position and integrally attached to a rotated shaft at a central position in the rotational direction, a core fixing part that engages to regulate the position of the core in the forward/backward direction with respect to the solenoid, and a core fixing part that is continuous with the core fixing part and engages with the rotating plate and the advancing/retracting member to control the rotational direction of the rotary plate with respect to the advancing/retracting member and with respect to the solenoid. 1. A fixing jig for a rotary drive device, comprising a rotary plate fixing portion that regulates each position in the rotational direction of a moving member.