JP2002074785A - Part item attaching structure to be finely adjusted - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide as simple part item attaching structure to be finely adjusted, capable of performing easy attaching work without using any separate attaching parts. SOLUTION: A part item is supported on a base member attaching part so as to be adjusted for a movement by a slide guiding means for guiding slide guiding parts so as to slide into contact with a pair of parallel sliding surfaces provided between a part item and an attaching part formed on the plane of the base member, and move in parallel with each other, and a locking means for locking the part item slid on the attaching part of the base member so as not to float. Then, in this supported state, the part item is moved to a required proper position, and fixed by a fixing means associatively with the locking means. Thus, the part item is easily installed in the proper position, the number of parts is reduced, and the entire structure is simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a component capable of fine-moving adjustment, in which a component arranged on a plane of a base member can be finely moved in parallel and fixed after adjustment.

[0002]

2. Description of the Related Art Generally, an electric device or the like is provided with a mounting component on a base member, and the mounting component is used to match an electric interaction with another electric component or the like.
There is one that is fixed to the base after fine adjustment in parallel to adjust the relative position.

For example, a tape recorder (VTR, DA
T, 8 mm video capstan motor), the capstan and the pinch roller are brought into contact with the magnetic tape to run the magnetic tape at a constant speed, and the MR is used to extract a signal for controlling the rotation of the capstan motor. There are sensors equipped with a sensor (a sensor using a magnetoresistive transducer).

As an example of a capstan motor equipped with this MR sensor, an N-pole and an S-pole are alternately magnetized on the outer periphery of the rotor and divided into arbitrary 2 (n + 1) (n is a positive integer) sections. There is a configuration in which a detection target is configured by a magnetized magnet, and an MR sensor using a magnetoresistive element serving as a detection unit is attached to the detection target.

[0005] An MR sensor serving as a detection unit extracts a change in magnetic flux when the detection target rotates together with the rotor as a signal converted into a change in resistance value.

This MR sensor is generally configured to take out a plurality of resistance value change outputs for the purpose of improving the accuracy of rotation control of the capstan motor.

In a tape recorder, a plurality of resistance value change output signals from a MR sensor of a capstan motor equipped with the MR sensor are combined by a subsequent electric circuit, and a plurality of systems having a differential amplification and a phase difference are provided. Processing such as creating a signal,
Thereafter, the output signal converted into a rectangular wave or the like is output to the control unit of the capstan motor.

In the capstan motor control section, M
Based on the output signal of the R sensor,
The number of rotations, the direction of rotation, and the like are controlled to an appropriate operation state.

The MR sensor for a capstan motor used in this manner transmits a signal of a change in magnetic flux by a detected portion of the rotor to a rotating surface including the detected portion of the rotor.
It is designed such that an appropriate output signal of the MR sensor can be obtained on condition that the R sensor is mounted at a position where a predetermined interval is provided and there is no inclination.

In general, as the number of magnetized poles of the detection target increases and the number of resistance change output signals extracted from the MR sensor increases, the tolerance of the mounting accuracy with respect to the above-mentioned predetermined intervals and inclinations becomes larger. Becomes narrower.

Therefore, when the MR sensor is mounted on the base member on which the capstan motor is arranged, first, the mounting MR sensor is placed on the base member. Next, the output signal of the MR sensor is measured while finely moving the MR sensor with respect to the detected portion of the rotating rotor, and an appropriate installation position at which performance according to the design is exhibited is determined. Next, the MR sensor at the proper installation position is fixed to the base member and the MR sensor is mounted.

Conventionally, in order to mount the MR sensor on the base member of the capstan motor as described above, a mounting structure of a component capable of fine adjustment as shown in FIG. 16 has been adopted.

In the mounting structure for the component capable of fine movement adjustment shown in FIG. 16, as a part thereof, the base member 12 is provided on the base member 12 at a predetermined interval outside the outer peripheral surface of the detection portion 10 provided on the rotor of the capstan motor. A columnar fixed support shaft 14 is provided at a predetermined position. Then, the fixed support shaft 14 is axially inserted into a shaft hole formed at one longitudinal end of the MR sensor 16 having a substantially rectangular planar shape, and is rotatably mounted in the direction of arrow A in the figure.

In this state, the detection target 10 integrated with the rotor is
And the MR sensor 16 is rotated about the fixed support shaft 14 as shown by a dashed line, so that the gap between the MR sensor 16 and the detection target 10 (the MR sensor 16 and the detection target 1
(Interval with 0) is changed and adjusted with a slight inclination with respect to the rotation plane of the detected portion 10 of the rotor.

Furthermore, an output signal when the MR sensor 16 is finely adjusted is measured, and an appropriate installation position on the base member 12 at which the MR sensor 16 can exhibit the performance according to the design is determined.

Next, a screw 18 is passed through a through-hole formed in the other end of the MR sensor 16 in the longitudinal direction, and further through an arc-shaped elongated hole 20 around the fixed support shaft 14 in the base member 12. Then, the nut 18 is fastened by fitting a nut (not shown) to the tip of the screw 18, and the MR sensor 16 at the proper installation position is fixed to the base member 12.

Conventionally, as a structure for mounting a component capable of fine movement adjustment for mounting the MR sensor on the base member 12 of the capstan motor, a structure for mounting a component capable of fine movement adjustment exemplified in FIGS. 17 and 18 is employed. Have been.

In the mounting structure of the component capable of fine movement adjustment shown in FIGS. 17 and 18, a predetermined space is provided on the base member 12 at a predetermined interval outside the outer peripheral surface of the detected portion 10 provided on the rotor of the capstan motor. At this position, a substantially inverted U-shaped metal slide support member 22 is fitted with its foot 24 into the hole of the base member 12 and soldered and fixed.

The slide support member 22 is formed in a frame whose both free ends are bent inwardly. The main body of the MR sensor 16 is inserted into the frame and moved in the direction of arrow B in FIG. Configure to be operable.

With the main body of the MR sensor 16 inserted into the frame of the slide support member 22, the detection unit 10 integrated with the rotor is rotated and the slide support member 2 is rotated.
The main body of the MR sensor 16 is moved and adjusted in the
The gap between the main body of the sensor 16 and the detected portion 10 (the interval between the main body of the MR sensor 16 and the detected portion 10) is changed and adjusted.

Further, an output signal obtained when the main body of the MR sensor 16 is finely adjusted is measured, and the main body of the slide support member 22 at which the MR sensor 16 main body can exhibit the performance according to the design is properly positioned in the frame. Keep it. If necessary, the main body of the MR sensor 16 at the proper installation position is fixed to the slide support member 22 by bonding.

[0022]

In the above-described conventional structure for mounting a component capable of fine adjustment as shown in FIG. 16, the gap between the MR sensor 16 mounted on the base member 12 and the detected portion 10 of the rotor is known. Can be adjusted appropriately to some extent.

However, when the gap between the MR sensor 16 and the detection target 10 is appropriately adjusted, the MR sensor 16 itself rotates about the fixed support shaft 14, so that the MR sensor 1
There is a possibility that the flat side surface on which the two systems of the magnetoresistive transducer elements 6 are provided is not parallel to the tangent line of the detection point in the detected portion 10 of the rotor.

As described above, when the MR sensor 16 is not parallel to the tangent line of the detection point of the detected portion 10 of the rotor, when the MR sensor 16 detects the magnetic flux of the detected portion 10, it may be affected by a phase difference or the like. However, there is a problem that performance may not be as designed.

In the mounting structure of the component capable of fine movement adjustment shown in FIGS. 17 and 18, the MR sensor 16 main body installed on the base member 12 via the slide support member 22, the detected portion 10 of the rotor, and the like. Can be appropriately adjusted.

However, when soldering the slide support member 22 to the base member 12 by soldering,
It is difficult to make the sliding direction of the main body of the MR sensor 16 supported by the sensor 2 coincide with the normal line (radiation from the center of rotation of the rotor) of the detection point in the detected part 10 of the rotor.

Therefore, even if the main body of the MR sensor 16 is moved and adjusted along the slide support member 22, the MR sensor 16
There is a possibility that the flat side surface of the main body on which the two systems of magnetoresistive transducers are provided is not parallel to the tangent line of the detection point in the detected portion 10 of the rotor.

As described above, when the main body of the MR sensor 16 is not parallel to the tangent line of the detection point of the detected part 10 of the rotor, when the main body of the MR sensor 16 detects the magnetic flux of the detected part 10, a phase difference or the like occurs. There is a problem that performance as designed may not be achieved due to the influence of the above.

Further, the main body of the MR sensor 16 is
2 requires a separate component such as the slide support member 22, and the slide support member 22 is accurately positioned and placed on the base member 12, and the work of soldering and fixing the same is troublesome. There is a problem of hanging.

The present invention has been made in view of the above-described circumstances, and has as its object to newly provide a mounting structure for a component that can be easily adjusted without using a separate mounting component and that has a simple structure and that can be adjusted for fine movement. I do.

[0031]

According to a first aspect of the present invention, there is provided a mounting structure for a component capable of fine movement adjustment, wherein the component is finely adjusted at a mounting position of a base member. In the mounting structure, a slide guide unit provided on the component slides on a pair of parallel sliding contact surfaces formed on the base member to guide the slide guide unit to move in parallel, and slides a mounting portion of the base member. It is characterized by having locking means for locking a component to be fixed so as not to float, and fixing means for fixing a component which has been moved and adjusted on a mounting portion of the base member.

With the above construction, the components supported by the slide guide means and the locking means can be moved and adjusted in parallel with respect to the base member without using a separate mounting part, so that the proper position can be obtained. After moving to the position, the part is fixed to the base member by the fixing means, so that it is possible to easily mount the part at an appropriate position. Further, by forming a part of the slide guide means on the base member, the number of components can be reduced and the entire configuration can be simplified.

According to a second aspect of the present invention, there is provided a mounting structure for a component capable of fine movement adjustment, wherein a detected portion is mounted, and a base member on which a sensor component is mounted is opposed to a base member on which the detected portion is mounted. Is provided on the base member so as to be separated while maintaining a constant, and the slide guide portion provided on the sensor component is moved in parallel by sliding the slide guide portion on each of a pair of parallel sliding contact surfaces formed on the base member. A sliding guide means for guiding the sensor component to slide, a locking means for locking the sensor component sliding on the mounting portion of the base member so as not to float, and a locking device for moving the sensor component on the mounting portion of the base member. And fixing means for fixing in combination.

With the above construction, the sensor component supported by the slide guide means and the locking means with respect to the base member is moved in parallel so as to be adjusted to a position where the detected part can be detected satisfactorily. After that, since the sensor component is fixed to the base member by the fixing means, the sensor component can be easily installed at an appropriate detection position. Further, by forming a part of the slide guide means on the base member, the number of components can be reduced and the entire configuration can be simplified.

According to a third aspect of the present invention, in the mounting structure for a component capable of fine movement adjustment according to the first or second aspect, the slide guide means is provided with a constant facing relationship from a corresponding position where the detected part is mounted. A guide groove formed in the base member so as to be spaced apart from the guide groove and forming a pair of parallel sliding contact surfaces, and a slide guide portion slidingly guided by the pair of parallel sliding contact surfaces of the guide groove, respectively. And characterized in that:

With the above configuration, in addition to the functions and effects of the first or second aspect of the present invention, the guide groove can be formed in the base member at one time by press working or the like. The base member provided with the guide groove can be easily manufactured. Further, the slide guide portion is slidably contacted with a pair of parallel slidable contact surfaces of the guide groove, so that the movement of the component can be adjusted linearly and stably.

According to a fourth aspect of the present invention, in the structure for mounting a component capable of fine movement adjustment according to the third aspect, the locking means faces the back side of the base member from the tip of the slide guide portion inserted into the guide groove. On the contrary, it is characterized in that it is constituted by a locking portion for suppressing the floating of the sensor component.

With the above construction, in addition to the functions and effects of the first, second or third aspect of the present invention, a simple and integrally provided slide guide portion is provided. With the locking portion having the configuration, it is possible to reliably lock the component so that the component does not rise from the base member.

According to a fifth aspect of the present invention, in the mounting structure of the component capable of fine movement adjustment according to the third or fourth aspect, the slide guide portion is brought into contact with the end of the guide groove on the detected portion side. Sometimes, the sensor component is at the foremost position that can be closest to the detected part within the movable range,
It is characterized in that the sensor component is moved and adjusted so as to be away from the detected portion from the foremost position so that an optimum state for detecting the detected portion can be obtained.

With the above configuration, in addition to the functions and effects of the first, second, third, or fourth aspects of the present invention, the range in which the sensor component can be moved and adjusted can be adjusted. After the sensor component is located at the most distal position that can be closest to the detected portion, the sensor component can be moved and adjusted to move away from the detected portion to easily adjust the position to the optimum state.

According to a sixth aspect of the present invention, in the structure for mounting a component capable of fine movement adjustment according to the third or fourth aspect, the slide guide portion is brought into contact with the end of the guide groove on the detected portion side. In some cases, the sensor component is configured to be in an optimal state for detecting the detected portion.

With the above-described configuration, the sensor component can be optimally positioned so that the sensor component can detect the detected portion simply by placing the slide guide portion in contact with the end of the guide groove on the detected portion side. Since the state is set, this operation can be extremely easily performed.

According to a seventh aspect of the present invention, there is provided a mounting structure for a component capable of fine movement adjustment, wherein the outer peripheral surface is divided into a plurality of sections which are alternately magnetized into N poles and S poles to form a detected portion. A slide provided on a sensor member for detecting a detected portion by a magnetoresistive transducer in a base member for supporting the rotation axis of the rotor and a guide groove forming a pair of parallel sliding contact surfaces formed on a plane of the base member. A slide guide means for sliding the guide portion so as to move from a position near the outer peripheral surface of the rotor in a radial direction with respect to the rotation axis of the rotor while maintaining a constant facing relationship, and a slide guide portion inserted into the guide groove. Locking means comprising a locking portion that faces the back side of the base member from the tip of the base member and suppresses the floating of the sensor component, and fixing means for fixing the sensor component that has been moved and adjusted on the mounting portion of the base member. Characterized in that it has.

With the above-described configuration, the sensor component supported by the slide guide means and the locking means with respect to the base member is moved and adjusted in parallel to the radiation direction with respect to the rotation axis of the rotor, and is adjusted to an appropriate position. After moving, the parts are fixed to the base member by the fixing means, so that the sensor part detected by the plurality of systems of magnetoresistive transducers has an adverse effect due to the phase difference between the detected part of the rotor and the plurality of systems of magnetoresistive transducers. It has a gap that can be detected so as not to cause a tilt, and can be properly installed in a state where tilt does not occur. Further, by forming a part of the slide guide means on the base member, the number of components can be reduced and the entire configuration can be simplified.

According to an eighth aspect of the present invention, in the mounting structure of the fine-adjustable component according to any one of the first to seventh aspects, the jig which slides while pressing the component and the base member is locked. It is characterized in that a gripping portion for causing it to be provided is provided.

With the above-described configuration, the fine movement operation of the component can be easily performed by moving the component while locking the jig to the grip portion.

[0047]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the mounting structure for a component capable of fine movement adjustment according to the present invention will be described with reference to FIGS. FIG. 1 is a plan view showing a state in which an MR sensor as an independent component is mounted on a base member of a capstan motor as a mounting structure for a component capable of fine movement adjustment. As shown in FIG. 1, an MR sensor 32, which is a sensor component, is mounted at a predetermined position on a base member 30 of a capstan motor used in a tape recorder (VTR, DAT, 8 mm video, etc.).

The base member 30 is formed in a flat plate shape as shown in FIGS. 1 and 5 on a silicon steel plate-based printed circuit board.

Although not shown, the base member 30
The outer periphery of the rotor is divided into sections 270 to 432, and in these sections, a capstan motor having a rotor having a magnetized N-pole and S-pole alternately to constitute a detection target is mounted in an integrated structure. A coil portion 34 is provided at a predetermined position on the flexible printed circuit board.

Further, a substantially circular mounting hole 36 is formed in the center of the coil portion 34 for mounting a bearing for a rotating shaft of a capstan motor (not shown).

The base member 30 is provided with a pair of guide grooves 38 as slide guide means at predetermined positions outside the coil portion 34. This pair of guide grooves 38
The outer side surfaces in the longitudinal direction, which are outside each other, form a pair of parallel linear sliding contact surfaces.

The base member 30 is provided with a screw hole 40 which forms a part of a fixing means for fixing the MR sensor 32 at a predetermined position outside one of the guide grooves 38.

The flexible printed circuit board of the base member 30 is provided with a drive control circuit for the capstan motor, a detection circuit connected to the MR sensor 32, and the like.

The MR sensor 32 mounted on the base member 30 configured as described above is configured as shown in FIGS.

The MR sensor 32 has a structure in which two systems (may be configured as a single system or a large system) of magnetoresistive transducers are integrated with each other. The mounting part 44 of the magnetoresistive transducer is formed integrally.

When the base 42 of the MR sensor 32 has its bottom surface in contact with the plane of the base member 30, the magnetoresistive transducer provided on the MR sensor 32 serves as a detection target of a capstan motor (not shown). The rotor is arranged so as not to be inclined with respect to the rotation surface of the rotor provided.

The pedestal portion 42 is provided with a rectangular protruding slide guide portion 46 as one part of the slide guide means at one end of the bottom surface thereof. At the free end of the slide guide portion 46, as a locking means for locking the pedestal portion 42 so as not to float above the surface of the base member 30,
A locking portion 48 that is bent into an L shape and protrudes a little outside the pedestal portion 42 is provided integrally.

That is, the locking portion 48 is
The MR sensor 32 is configured to be held down from the front end of the slide guide portion 46 inserted into the base member 8 so as to face the back side of the base member 30.

Further, a narrow groove 47 is formed at the base of the slide guide portion 46 with the pedestal portion 42 to prevent stress from being concentrated on this portion and causing breakage.

The pedestal portion 42 has its other end on the bottom surface coupled with the locking means to move and adjust the MR sensor 32 as a part of fixing means for fixing the pedestal portion 42 to the base member 30. The long hole 50 which is a through hole through which the long fastening screw 60 is inserted in the moving direction at the time of the movement is formed.

The base 42 has a rectangular slide base 52 as a part of the slide guide means protruding near the other end where the long hole 50 is formed.

The pedestal portion 42 is provided at the center of the upper surface thereof as a part of the position adjusting means.
4 is drilled. As shown in FIG. 3, the grip 54
Two hooks 56 attached to the tip of a micrometer (not shown) are inserted into two small holes so as to be gripped.

The MR sensor 32 has a lead wire 58 extending to connect the magnetoresistive transducer to the detection circuit of the base member 30.

Next, the operation and operation when the MR sensor 32 constructed as described above is finely adjusted and attached to the base member 30 will be described.

In this mounting operation, first, as shown in FIG. 1, the MR sensor 32 is placed on a portion of the base member 30 where the pair of guide grooves 38 are provided. At this time, as shown in FIG.
Is inserted into one guide groove 38 to lock the locking portion 48 on the back side of the base member 30. At the same time, the MR sensor 32 inserts the slide guide 52 into the other guide groove 3.
Insert into 8.

By mounting the MR sensor 32 in the pair of guide grooves 38 of the base member 30 as described above, the slide guide portions 46 and 52 are respectively formed on the outside of the pair of guide grooves 38 in parallel with each other. It is guided in sliding contact with the side, and is made movable in the direction of the normal line (radiation from the rotation center of the rotor) of the detection point in the detected portion of the rotor.

Next, the gripper 54 of the MR sensor 32
The hook claw 56 is inserted into the two small holes, and the MR claw 32 is pressed onto the base member 30 with the hook claw 56.
In addition to the moving operation in the direction, the rotor provided with the detected portion of the capstan motor (not shown) is rotated.

By measuring the output signal of the MR sensor 32 with the measuring device during this operation, the optimum position of the MR sensor 32 with respect to the detected portion of the rotor is determined.
The R sensor 32 is kept in an optimal state.

At the time of the position adjustment operation of the MR sensor 32,
The MR sensor 32 is provided in the MR sensor 32 by the slide guides 46 and 52 being guided by the pair of guide grooves 38 and the bottom surface of the base 42 being guided by the surface of the base member 30. The portion provided with the two systems of magnetoresistive transducers moves parallel to the tangent to the detection point in the detected portion of the rotor. That is, during the position adjustment operation, the MR sensor 32 is guided by the slide guide means so as to move parallel to the radiation direction with respect to the rotation axis of the rotor.

Therefore, the MR sensor 32 eliminates the influence of the phase difference and output level difference between the two magnetoresistive conversion elements when detecting the magnetic flux of the detection target provided on the rotor of the capstan motor. It is placed with high precision at the optimal position where it can exhibit the performance as designed.

Next, a fastening screw 60 is passed through the elongated hole 50 of the MR sensor 32 and fastened to the screw hole 40. This gives M
The R sensor 32 is fixedly arranged at an optimum position in the state shown in FIG. That is, the MR sensor 32 is provided with an optimum gap with respect to the detected portion provided on the rotor of the capstan motor, and the two magnetoresistive transducers of the MR sensor 32 respond to the detected portion without tilting. Set to state.

In the fixed state of the MR sensor 32 shown in FIG. 2, one end of the pedestal portion 42 in the longitudinal direction of the pedestal portion 42 is fastened by a fastening screw 60 to the base member 30.
And the other end of the pedestal portion 42 is locked to the base member 30 by the locking portion 48. Therefore, the MR sensor 32 is appropriately and reliably fixed without the bottom surface of the pedestal portion 42 rising from the base member 30 (the MR sensor 32 is inclined).

When the fastening screw 60 is used as the fixing means of the MR sensor 32, the operation of adjusting the position can be executed again by loosening the fastening screw 60. In addition, as a fixing means, it is needless to say that, other than the screw fastening, an adhesive (fixing means using a mechanical component such as a spring or a cam) or other fixing means may be used.

The position of the distal end portion 38A on the coil portion 34 side in the pair of guide grooves 38 provided in the base member 30 is determined when the slide guide portion 46 and the slide guide portion 52 contact the distal end portion 38A. When the sensor 32 is set at the foremost position (the limit position where it can be approached) that can be closest to the rotor (not shown), when the MR sensor 32 is mounted on the base member 30, the MR sensor 32 is moved to the closest position to the rotor. By moving the MR sensor 32 in a direction away from the rotor after setting the MR sensor 32, the MR sensor 32 can be moved and adjusted to an optimum state.

In this way, it is possible to prevent the MR sensor 32 from hitting the rotor and being damaged during the movement adjustment operation of the MR sensor 32, and it is not necessary to move the MR sensor 32 in one direction. It can be positioned at an appropriate position by operation.

Further, the position of the distal end portion 38A on the coil portion 34 side in the pair of guide grooves 38 provided in the base member 30 is determined when the slide guide portion 46 and the slide guide portion 52 contact the distal end portion 38A. When the sensor 32 is set to an optimal position with respect to a rotor (not shown), when the MR sensor 32 is mounted on the base member 30, the slide guide 46 and the slide guide 52 of the MR sensor 32 are paired. The MR sensor 32 can be set at an optimum position by a simple operation of pressing against the tip portion 38A of the guide groove 38.

When the position of the MR sensor 32 is determined as described above, if the MR sensor 32 is found to be not at the optimum position as a result of measurement by a measuring instrument, the MR sensor 32 is moved in the same manner as described above. By adjustment, the rotor is set at an optimum position, and the presence or absence of rotation, the number of rotations, and the rotation direction of the rotor can be controlled to an appropriate operation state based on an output signal of an appropriate MR sensor.

Next, in the first embodiment described above,
Another configuration example relating to the function of guiding the sliding operation in the guide groove 38 as the slide guide means will be described.

The slide guide means shown in FIG. 6 is such that the guide groove 38 is formed in a concave guide 71 having a U-shaped cross section. It can be configured to guide a moving operation.

Next, the slide guide means shown in FIG.
A portion of the guide groove 38 is formed as a ridge guide 74 formed in a convex portion having a rectangular cross section. The ridge guide 74 can be formed by outsert integral molding using a through hole formed in the base member 30. The ridge guide 74 guides the movement of the MR sensor 32 by sliding the slide guide portion 52 on one side of the ridge guide 74.

Next, the locking means also serving as the slide guide means shown in FIG. 8 forms the locking guide 76 by cutting and raising the guide groove 38 into an inverted L-shaped section. The locking guide 76 can be formed at the same time as the base member 30 is formed. This locking guide 76 is
A small rectangular ridge 78 provided on the MR sensor 32 is slid on the side surface of the MR sensor 32 to guide the movement of the MR sensor 32, and is slid on the upper surface of the ridge 78 so that the MR sensor 32 is in contact with the base member 30. It is supported so that it does not come up from.

Next, a description will be given of a structure for mounting a component capable of fine movement adjustment according to a second embodiment of the present invention with reference to FIG.

In the second embodiment, the linear operation of the detected part constituted by alternately magnetizing the N-pole and the S-pole in each of the subdivided sections of the member formed in a linear shape is performed. The detection is performed by an MR sensor using two systems of magnetoresistive transducers arranged adjacent to the detection unit.

For this reason, as shown in FIG.
At 0, the driven member 62 of a rectangular long plate is mounted movably in the direction of arrow D while being guided by a pair of linear guide members 64.
A rack 66 is formed on a part of the long side of the driven member 62, and a detected section 68 is formed by alternately magnetizing N poles and S poles in a subdivided section. .

A pinion 70 driven by a motor 72 is engaged with the rack 66. This motor 72
Is drive-controlled by the drive control circuit 80. In the drive control circuit 80, a position sensor switch 82 for detecting an end position of the driven member 62 and the MR sensor 32 are connected.

As in the first embodiment, the MR sensor 32 has a pair of guide grooves 38 serving as slide guide means of the base member 30, and a slide guide portion 46,
The guide 52 is configured to be movable and adjustable to an appropriate position while being locked in one guide groove 38 by a locking portion 48 as locking means.

After adjusting the movement of the MR sensor 32 to an appropriate position, the MR sensor 32 is fastened to the screw hole 40 of the base member 30 by passing the fastening screw 60 into the elongated hole 50 as a fixing means.
It is arranged at an appropriate interval with respect to the detected part 68 and an appropriate posture without inclination.

The MR sensor 32 arranged at the proper position as described above can accurately detect the presence / absence of the movement of the detected part 68, the moving direction and the moving speed. Therefore, the drive control circuit 80
Can accurately control the moving operation of the driven member 62 by appropriately controlling the motor 72 based on the signal of the MR sensor 32.

Note that the configuration, operation, and effects of the second embodiment other than those described above are the same as those of the above-described first embodiment, and a description thereof will be omitted.

Next, a description will be given of a structure for mounting a component capable of fine adjustment according to a third embodiment of the present invention with reference to FIG.

The third embodiment has a structure for adjusting the position of the braking member 86 on the outer peripheral surface of the rotary drum 84 so as to make sliding contact with a required pressure.

The braking member 86 is constituted by installing a felt member 88 as a friction stopping member on one longitudinal side surface of the substantially rectangular main body.

For this reason, as shown in FIG. 10, the base member 30 on which the rotary shaft 90 of the rotary drum 84 is mounted is a pair of slide guides for the base member 30 as in the first embodiment. The slide member 46 and 52 are guided in the guide groove 38, and the braking member 86 is moved in a state where the slide member 46 is locked to one of the guide grooves 38 by the locking portion 48 as locking means, and the felt member 88 is moved. By pressing the flat surface parallel to the tangent line of the rotating drum 84 against the outer peripheral surface of the rotating drum 84, the felt member 88 is pressed.
Are configured so that the frictional force for braking the rotating drum 84 can be finely adjusted. In the third embodiment, since the felt member 88 is pressed against the outer peripheral surface of the rotating drum 84, the tip of the pair of guide grooves 38 on the rotating drum 84 side is sufficiently brought close to the rotating drum 84. .

After the movement of the braking member 86 is adjusted to a position at which an appropriate frictional force is applied to the rotating drum 84, the braking member 86 is fastened to the screw hole 40 of the base member 30 through the elongated hole 50 as a fixing means through the fastening screw 60. By the rotating drum 8
4 with a proper pressing force and a proper posture without inclination.

Note that the configuration, operation, and effects of the third embodiment other than those described above are the same as those of the above-described first embodiment, and a description thereof will be omitted.

Next, a description will be given of a structure for mounting a component capable of fine movement adjustment according to a fourth embodiment of the present invention with reference to FIG.

In the fourth embodiment, a pair of rotating bodies 9
This is a configuration for adjusting and arranging the distance between the shafts 2, 94.

[0098] The pair of rotating bodies 92, 94 are formed by mounting a rotating shaft 96 of one rotating body 92 on the base member 30 and a rotating shaft 98 of the other rotating body 94 mounted on the base member 30. And placed on the shaft.

For this reason, as shown in FIG.
The base member 30 on which the base member 30 is mounted is provided with the slide guide portions 46 and 52 in a pair of guide grooves 38 as slide guide means of the base member 30 as in the first embodiment described above.
While the base member 100 is moved in a state where the base member 100 is locked in the one guide groove 38 portion by the locking portion 48 as a locking means, the distance between the axis of the other rotating body 94 and the one rotating body 92 is reduced. The distance can be finely adjusted.

After the distance between the shafts of the pair of rotating bodies 92 and 94 is appropriately adjusted by the movement, the fastening screw 60 is passed through the elongated hole 50 as the fixing means of the base member 100 to the screw hole 40 of the base member 30. By fastening, the other rotating body 94 of the base member 100 is fixed in an appropriate posture without inclination.

Note that the configuration, operation, and effects of the fourth embodiment other than those described above are the same as those of the above-described first embodiment, and a description thereof will be omitted.

Next, a description will be given of a structure for mounting a component capable of fine adjustment according to a fifth embodiment of the present invention with reference to FIG.

In the fifth embodiment, the mirror member 102 for refracting an optical path is adjusted in position and arranged. The mirror member 102 is configured by installing a mirror 102A on one side surface of a substantially rectangular main body in the longitudinal direction.

Further, a laser beam or the like emitted from the light emitting section 104 is reflected by the mirror 102A of the mirror member 102, and an optical path is formed so that the light can be received by the light receiving sensor 106.

Further, in order to adjust the optical path from the light emitting section 104 to the mirror 102A until the light is received by the light receiving sensor 106, a pair of slide guide means for the base member 30 is provided as in the first embodiment. Guide groove 3
8 guides the slide guides 46 and 52 and locks the mirror member 102 with the mirror 102 </ b> A in a state where the mirror 102 </ b> A is extended by the pair of guide grooves 38 while being locked in the one guide groove 38 by the locking part 48 as locking means. The optical path is adjusted by moving in an appropriate posture parallel to the direction perpendicular to the direction and without inclination.

Then, while moving and adjusting the mirror 102A of the mirror member 102, the light beam emitted from the light emitting portion 104 is reflected by the mirror member 10A.
The mirror member 102 is retained at a position where the light receiving sensitivity when light is reflected by the second mirror 102A and received by the light receiving sensor 106 is the best.

Further, after the position of the mirror member 102 is adjusted, the mirror member 102 is fastened to the screw hole 40 of the base member 30 through the fastening screw 60 in the elongated hole 50 as a fixing means of the mirror member 102, so that an appropriate posture without inclination can be obtained. Thus, the mirror member 102 is arranged.

Further, as shown in FIG.
Is that the mirror 102A is disposed obliquely on one side in the longitudinal direction of the substantially rectangular main body, so that the mirror 102A
The optical path can be adjusted in such a manner that the optical path can be adjusted in an appropriate posture without inclination and parallel to a direction other than a direction perpendicular to the direction in which the pair of guide grooves 38 extend.

As described above, the mirror 102A is connected to the pair of guide grooves 3
When the mirror member 102 is disposed in a direction other than the direction perpendicular to the direction in which the pair of guide grooves 38 extend, the movement of the mirror member 102 is smaller than when the mirror member 102 is disposed in the direction perpendicular to the direction in which the pair of guide grooves 38 extend. This has the advantage that the rate at which the optical path is changed with respect to the quantity can be set arbitrarily.

Note that the configuration, operation, and effects of the fifth embodiment other than those described above are the same as those of the first embodiment described above, and thus description thereof will be omitted.

Next, a mounting structure for a component capable of fine adjustment according to a sixth embodiment of the present invention will be described with reference to FIGS.
5 will be described.

The sixth embodiment is a configuration for finely adjusting the mutual distance in the coupling of the magnetic coupling mechanism (magnetic coupling mechanism).

As shown in FIG. 14, in this magnetic coupling mechanism, one magnetic coupling member 108 is fixedly installed on the base member 30 and the other magnetic coupling member 110 is attached to the base member 3.
It is configured so that it can be moved and adjusted to 0.

The one magnetic coupling member 108 is configured by rotatably mounting a shaft 114 on a bearing member 112 fixed to the base member 30 and mounting a magnet member 116 at the tip of the shaft 114. .

The other magnetic coupling member 110 has a shaft portion 120 rotatably mounted on a bearing portion 118 integrally formed with a substantially rectangular main body, and a magnetic member such as iron is attached to the tip of the shaft portion 120. 122 are installed and configured.

The other magnetic coupling member 110 is provided in a pair of guide grooves 38 as slide guide means of the base member 30 in the substantially rectangular main body of the magnetic coupling member 110, as in the first embodiment. Slide guide part 4
The magnetic coupling member 110 is moved in a state in which the magnetic coupling members 110 and 62 are guided, and the magnetic coupling member 110 is locked in one of the guide grooves 38 by the locking portion 48 as locking means.
The gap (interval) between the magnetic member 16 and the magnetic member 122 can be finely adjusted.

At this time, the opposed magnet members 11
6 and the magnetic member 122 and the magnet member 1
Since the relationship between the transmission force transmitted from the magnet member 116 to the magnetic member 122 changes as shown in FIG. 15, the transmission force between the magnet member 116 and the magnetic member 122 is adjusted to a desired value by finely changing and adjusting the gap. Can be set accurately.

After the other magnetic coupling member 110 is moved and adjusted to the position where the desired transmission force is transmitted as described above, the screw hole 40 of the base member 30 is passed through the fastening screw 60 into the elongated hole 50 as the fixing means. Is arranged in an appropriate posture without inclination.

Further, the configuration of the magnetic coupling mechanism described above can also be used as a configuration for adjusting the press-contact state between the members that come into contact with each other in the coupling mechanism using friction.

Note that the configuration, operation, and effects of the sixth embodiment other than those described above are the same as those of the above-described first embodiment, and a description thereof will be omitted.

[0121]

According to the mounting structure for a component capable of fine movement adjustment of the present invention, the operation of mounting the component at an appropriate position on the base member can be easily performed without using a separate mounting component. In addition, since the configuration capable of fine movement adjustment is simple, there is an effect that an inexpensive product can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view showing a structure in which a detected portion provided on a rotor of a motor according to a first embodiment is detected by an MR sensor in a mounting structure of a component capable of fine movement adjustment according to the present invention.

FIG. 2 is a view showing a structure in which a detected portion provided on a rotor of a motor according to a first embodiment of the present invention in a structure for mounting a component capable of fine movement adjustment according to the present invention is detected by an MR sensor; It is an enlarged front view which shows a partial cross section.

FIG. 3 is an enlarged perspective view of the structure for detecting a detected portion provided on the rotor of the motor with the MR sensor according to the first embodiment in the mounting structure of the component capable of adjusting the fine movement according to the present invention, showing the MR sensor taken out therefrom; It is.

FIG. 4 is an enlarged bottom view of the structure for detecting a detected portion provided on the rotor of the motor with the MR sensor according to the first embodiment in the mounting structure of the component capable of adjusting the fine movement according to the present invention; It is.

FIG. 5 is a plan view showing a base member taken out of a structure in which a detected portion provided on a rotor of the motor according to the first embodiment is detected by an MR sensor in the mounting structure for a component capable of fine movement adjustment according to the present invention; is there.

FIG. 6 shows a structure for detecting a detected part provided on a rotor of a motor according to a first embodiment of the present invention in a mounting structure for a component capable of fine movement adjustment according to the present invention, in addition to a slide guide means provided on a base member. FIG. 2 is a perspective view showing a configuration example of the above in a partial cross section.

FIG. 7 is a perspective view of the slide guide means provided on the base member of the structure for detecting the detected portion provided on the rotor of the motor according to the first embodiment of the present invention with the MR sensor according to the first embodiment of the present invention; It is a perspective view which shows another structural example by partial cross section.

FIG. 8 also serves as a slide guide means provided on a base member of the structure for detecting a detected portion provided on the rotor of the motor with the MR sensor according to the first embodiment in the mounting structure of the component capable of fine movement adjustment of the present invention. It is a perspective view which shows the example of a structure of the locking means in partial cross section.

FIG. 9 shows a linearly operated detected part according to a second embodiment of the present invention in the mounting structure for fine-movement-adjustable parts.
FIG. 4 is a schematic plan view showing a structure to be detected by an R sensor.

FIG. 10 is a plan view showing a mounting structure of a braking member to a rotary drum according to a third embodiment in a mounting structure of a component capable of fine movement adjustment of the present invention.

FIG. 11 is a plan view showing a mounting structure for adjusting a distance between axes of a pair of rotating bodies according to a fourth embodiment in a mounting structure for a component capable of fine movement adjustment according to the present invention.

FIG. 12 is a plan view showing a mounting structure for adjusting a position of a mirror member for refracting an optical path according to a fifth embodiment in a mounting structure for a component capable of fine movement adjustment according to the present invention.

FIG. 13 is a plan view showing a mounting structure for moving and adjusting the position of a mirror member for refracting an optical path in an oblique state according to a fifth embodiment in the mounting structure for a component capable of fine movement adjustment according to the present invention; It is.

FIG. 14 is a plan view showing a mounting structure for fine-moving adjustment of a mutual interval in a coupling of a magnetic coupling mechanism (magnetic coupling mechanism) according to a sixth embodiment in a mounting structure for a component capable of fine movement adjustment according to the present invention; FIG.

FIG. 15 is a graph showing the relationship between the mutual spacing and the transmission force in the coupling of the magnetic coupling mechanism (magnetic coupling mechanism) according to the sixth embodiment in the mounting structure for the component capable of fine movement adjustment of the present invention. is there.

FIG. 16 is a plan view of an essential part showing a structure for detecting an object to be detected provided on a rotor of a motor with an MR sensor, which is an example of a conventional structure for mounting a component capable of fine movement adjustment.

FIG. 17 is a plan view of a principal part showing another example of a conventional structure for mounting a component capable of fine movement adjustment, in which a detected portion provided on a rotor of a motor is detected by an MR sensor.

FIG. 18 is a partial front view showing a partial cross section of a structure for detecting a detected portion provided on a rotor of a motor with an MR sensor, which is another example of a conventional structure for mounting a component capable of fine movement adjustment.

[Explanation of symbols]

 Reference Signs List 30 base member 32 MR sensor 36 mounting hole 38 guide groove 38A tip 40 screw hole 42 pedestal 44 mounting part 46 slide guide part 48 locking part 50 long hole 52 slide guide part 54 gripping part 56 hooking claw 62 driven member 68 received Detecting unit 71 Concave guide 72 Motor 74 Protrusion guide 76 Locking guide 78 Protrusion 84 Rotary drum 86 Braking member 90 Rotating shaft 100 Base member 102A Mirror 102 Mirror member 108 Magnetic coupling member 110 Magnetic coupling member 116 Magnet member 118 Bearing Part 120 Shaft rod 122 Magnetic member

Claims (8)

[Claims] 1. A mounting structure for a component capable of fine-adjustment for finely adjusting and mounting a component on a mounting portion of a base member, wherein a slide guide portion provided on the component is provided on a pair of parallel members formed on the base member. Sliding guide means for slidingly contacting the respective sliding contact surfaces and guiding them to move in parallel; locking means for locking the parts sliding on the mounting portion of the base member so as not to float; and the base member And a fixing means for fixing the component that has been moved and adjusted on the mounting portion of (a). 2. A base member for mounting a detected part and mounting a sensor component on the base member so as to be separated from a corresponding position where the detected part is mounted while maintaining a constant facing relationship, A slide guide means for guiding the slide guide provided on the sensor component to move in parallel by sliding the slide guide on a pair of parallel sliding contact surfaces formed on the base member; Locking means for locking the sensor component that slides on the mounting portion so as not to float, and fixing the sensor component, which is moved and adjusted on the mounting portion of the base member, together with the locking means. A mounting structure for a component capable of fine movement adjustment, comprising: fixing means. 3. A pair of parallel sliding contact surfaces formed in said base member so as to separate said slide guide means from a corresponding position to which said detected part is attached while maintaining a constant facing relationship. The fine movement adjustment according to claim 1 or 2, characterized by comprising: a guide groove that slides; and a slide guide portion that slides and is guided by a pair of parallel sliding contact surfaces of the guide groove. Mounting structure for various parts. 4. The sensor according to claim 1, wherein the locking means is formed by a locking portion that faces the back side of the base member from the tip of the slide guide portion inserted into the guide groove and suppresses the floating of the sensor component. The mounting structure for a component capable of fine movement adjustment according to claim 3. 5. When the slide guide portion is brought into contact with the end portion of the guide groove on the side of the detected portion, the sensor component is closest to the detected portion within a movable range. 4. The apparatus according to claim 3, wherein the sensor part is located at a front end position, and the sensor part is moved and adjusted from the front end position so as to be distant from the detected part, so that an optimum state for detecting the detected part can be obtained. A mounting structure for a component capable of fine movement adjustment according to claim 4. 6. The sensor component is configured to be in an optimal state for detecting the detected portion when the slide guide portion is brought into contact with an end portion of the guide groove on the detected portion side. 5. The method according to claim 3, wherein
A mounting structure for a component capable of fine movement adjustment according to the above. 7. A base member for supporting a rotating shaft of a motor rotor having a detected portion by dividing an outer peripheral surface into a plurality of sections alternately magnetized into N poles and S poles, and formed on the base member. A slide guide portion provided on a sensor component for detecting the detected portion by a magnetoresistive transducer is slidably contacted with a guide groove forming a pair of parallel sliding contact surfaces from the position near the outer peripheral surface of the rotor. A slide guide means for guiding the rotor to move while maintaining a constant facing relationship in the radiation direction with respect to the rotation axis of the rotor; and the sensor facing the back side of the base member from a tip of a slide guide portion inserted into the guide groove. Locking means comprising a locking portion for holding up the rise of the component; and fixing means for fixing the sensor component which has been moved and adjusted on the mounting portion of the base member. Fine motion adjustable component mounting structure. 8. The fine movement adjustable according to claim 1, further comprising a grip portion for locking a jig that slides while pressing the component and the base member. Parts mounting structure.