JPH0436475Y2 - - Google Patents

Description

[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to a sensor with a position adjustment mechanism, and particularly relates to a novel improvement for easily and reliably performing minute position adjustments.

b. Prior Art There are various configurations of this type of sensor with a position adjustment mechanism that have been used in the past, but to describe a typical configuration, here we will disclose the names of documents showing the configuration. Although this is not the case, we can cite the configuration shown in FIG. 6, which was used in-house by the applicant.

That is, what is indicated by the reference numeral 1 in FIG. 6 is a sensor case consisting of an acceleration sensor or a gyro device, etc., which is entirely cylindrical in shape. A flange body 2 made of an annular body is provided integrally and fixedly.

The conventional sensor with a position adjustment mechanism is configured as described above, and its operation will be explained below.

The sensor 1 is inserted into the holding hole 3 of the holding member 3 of the device.
When holding within a, the holding surface 3 of the holding member 3
spacer 4 between b and the lower surface 2a of the flange body 2.
was used to obtain accurate horizontality of sensor 1.

c. Problems to be solved by the invention Since the conventional sensor with a position adjustment mechanism was constructed as described above, it had various problems as described below.

(1) To adjust the position by inserting a spacer, spacers with various thicknesses had to be prepared, and these spacers had to be replaced to adjust the sensor position. .

(2) As mentioned above, when preparing various types of spacers, these spacers are small pieces and have various thicknesses, so they are often lost or dropped during adjustment work.

(3) Furthermore, if spacers having various thicknesses are inserted and the position is adjusted, the position can only be adjusted by the same amount as the thickness of these spacers, and the amount of adjustment is not connected; Changes could only be made gradually.

Therefore, if you want to make an adjustment that corresponds to an amount thinner than the thickness of each spacer, it cannot be accommodated, so the only way is to use the spacer with the closest thickness. It was impossible to make any adjustments.

The present invention has been made to solve the above-mentioned problems, and in particular, the object is to obtain a sensor with a position adjustment mechanism that can easily and reliably perform minute position adjustments.

d. Means for Solving the Problems The sensor with a position adjustment mechanism according to the present invention holds a part of a cylindrical sensor case in a holding hole of a holding member, and is fixed to the outer periphery of the sensor case. A sensor with a position adjustment mechanism in which an annular flange body is pressed and fixed to the holding member by a fixing member provided via a mounting screw, the sensor having a tapered screw hole formed in the flange body and the tapered screw hole. a tapered screw body screwed into the flange body, an outer surface formed to protrude at an outer peripheral position of the taper screw hole of the flange body, and a notch formed in the tapered screw hole portion on the inner surface of the flange body. The configuration is as follows.

e Effect In the sensor with a position adjustment mechanism according to the present invention, by screwing the tapered screw body into the taper screw hole, the outer part of the taper screw hole, that is, the outer surface of the flange body deforms and protrudes. The position of the sensor case is adjusted depending on the amount of protrusion.

The amount of protrusion increases continuously depending on the screw-in state of the tapered screw body, so by adjusting the screw-in state of the taper screw body, extremely minute position adjustment can be performed.

f. Embodiments Hereinafter, preferred embodiments of the sensor with a position adjustment mechanism according to the present invention will be described in detail with reference to the drawings.

Note that the same or equivalent parts as in the conventional example will be described with the same reference numerals.

Figures 1 to 5 show a sensor with a position adjustment mechanism according to the present invention. In the figures, the reference numeral 1 is a sensor case consisting of an acceleration sensor or a gyro device, etc., which has a cylindrical shape as a whole. A flange body 2 made of an annular body having a plate shape as a whole is integrally fixed to the outer peripheral surface 1a of the sensor case 1.

Further, the flange body 2 is provided with a plurality of tapered screw holes 5 formed in the radial direction thereof, and the inner end of the taper screw hole 5, that is, the inner surface side 2b of the flange body 2 has a notch. Part 2
c is formed, and this notch 2c and the taper screw hole 5 communicate with each other.

Furthermore, a tapered screw body 6 having a diameter slightly larger than the inner diameter of the taper screw hole 5 is screwed into each of these taper screw holes 5 .

A part of the sensor case 1 is held in the holding hole 3a of the holding member 3, and is held on the upper surface 2 of the flange body 2.
e is pressed and fixed by a pressing piece 8a of a fixing member 8 provided to this holding member 3 via a mounting screw 7.

The sensor with a position adjustment mechanism according to the present invention is constructed as described above, and its operation will be explained below.

First, as shown in FIG. 1, the sensor case 1 is held in the holding hole 3a of the holding member 3, and the mounting screw 7 of the fixing member 8 is held in a loosely tightened state.
In this state, when the tapered screw body 6 is screwed into the taper screw hole 5 of the flange body 2, the outer surface 2d of the flange body 2 on the circumferential surface of the taper screw hole 5
Although not deformed in the figure, as shown in FIGS. 1 and 5, the flange body 2 and sensor case 1
The sensor case 1 is held at a predetermined horizontal position.

The aforementioned deformed protrusion of the outer surface 2d is the tapered screw hole 5.
Since it changes in proportion to the thread pitch of the tapered screw body 6 that is screwed into it, it is possible to obtain extremely small changes in the amount of protrusion.

In addition, the plate thickness and material of the flange body 2 mentioned above are as follows:
It is configured to such a degree that an appropriate strain is generated when the tapered screw body 6 is screwed in.

Furthermore, when the tapered screw body 6 is screwed into the taper screw hole 5, the tip 6 of the taper screw body 6
a comes into contact with the outer peripheral surface 1a of the sensor case 1,
In order to avoid damaging the outer circumferential surface 1a, the state of entry of the tip 6a can be visually observed through the notch 2c. The notch 2c also has a relief function to prevent stress concentration from occurring at the joint between the flange body 2 and the sensor case 1.

Note that the structure of the tapered screw hole 5 described above is not limited to the configuration in which it is formed in the radial direction as shown in FIG.
For example, although not shown, it goes without saying that similar effects can be obtained even when formed in a non-radial direction.

g. Effects of the invention Since the sensor with a position adjustment mechanism according to the invention is configured as described above, it is possible to obtain the following various effects.

(1) The mounting position of the flange body and sensor case is adjusted by utilizing the protruding deformation of the flange body caused by the tapered screw body screwed into the taper screw hole, so slight protruding deformation occurs depending on the pitch of the screw. It has become possible to perform minute positional adjustments that were impossible with conventional spacer insertion configurations.

(2) In addition, since the adjustment work for the mounting position of the sensor case is simply to screw the tapered screw body into the taper screw hole, there is no inconvenience such as losing the spacer as in the conventional case. The mounting position can be adjusted extremely finely and with high precision by extremely simple work.

[Brief explanation of the drawing]

1 to 5 are for showing a sensor with a position adjustment mechanism according to the present invention, and FIG. 1 is a front view including a partial cross section. Fig. 2 is an enlarged perspective view showing the sensor, Fig. 3 is a plan view of Fig. 2, Fig. 4 is an enlarged front view with a partial cross section showing the sensor of Fig. 1, and Fig. 5 is the same as Fig. 4. FIG. 6 is an enlarged front view with a partial cross section showing a state in which a tapered screw body is screwed in, and FIG. 6 is a front view showing a conventional sensor with a position adjustment mechanism. 1 is a sensor case, 1a is an outer circumference, 2 is a flange body, 2b is an inner surface, 2c is a notch, 2d is an outer surface, 5 is a tapered screw hole, 6 is a tapered screw body, 7 is a mounting screw, 8 is a fixing member, 8a is a pressing piece.

Claims (1)

[Scope of utility model registration request] A part of the cylindrical sensor case 1 is held in the holding hole 3a of the holding member 3, and the annular flange body 2 fixed to the outer circumferential portion 1a of the sensor case 1 is attached to the holding member 3 by a screw. In the sensor with a position adjustment mechanism, the sensor is press-fixed by a fixing member 8 provided through a fixing member 7, which includes a tapered screw hole 5 formed in the flange body 2, and a tapered screw screwed into the taper screw hole 5. body 6, an outer surface 2d protruding from the outer periphery of the tapered screw hole 5 of the flange body 2, and a notch 2c formed in the tapered screw hole 5 portion of the inner surface 2b of the flange body 2. The flange body 2 is made of a material that causes distortion when the tapered screw body 6 is screwed into the taper screw hole 5, and when the taper screw body 6 is screwed into the taper screw hole 5, the outer surface 2d A sensor with a position adjustment mechanism characterized in that the tapered screw body 6 is deformed and protrudes so that the tapered screw body 6 can be seen through the notch 2c.