JPH08236958A - Sensor fitting - Google Patents

Abstract

PURPOSE: To provide a sensor fitting which can make sensor attaching work easier and more efficient without deteriorating the detecting sensitivity of a sensor and can cope with small-scale-many-kind production. CONSTITUTION: A sensor fitting is provided with a U-shaped holding piece 3 which holds a sensor B set on a mounting base C while the piece 3 is in contact with the upper surface and both side faces of the sensor and is composed of a top piece 1 and both side pieces 2 and inclined pieces 4 which are formed by symmetrically bending the front end sections of the side pieces 2. The sensor B is fixed to the mounting base C by utilizing the spring reactions of the inclined pieces 4 by press-contacting the pieces 4 with the edge sections 8a of fitting holes 8 bored into in the base C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sensor mounting tool for mounting various sensors such as a magnetic sensor and a photoelectric sensor on a mounting substrate.

[0002]

2. Description of the Related Art FIG. 7 is an exploded perspective view showing an example of a mounting structure in which a conventional sensor mounting member is applied to mounting a magnetic sensor. In the figure, A is a sensor mounting tool, B is a magnetic sensor, C is a mounting board, and the magnetic sensor B is placed on the surface of the mounting board C and then magnetically attached by the gripping piece 3 of the sensor mounting tool A. While holding the sensor body 5 of the sensor B, insert the screw body 17 into the mounting hole 16 of each mounting piece 15,
Each of these screw bodies 17 is inserted into and fixed to the mounting hole 18 of the mounting substrate C. At this time, the top piece 1 of the sensor mount A
Is fitted into a groove 5c formed on the upper surface 5a of the sensor body 5, and both side pieces 2 thereof contact both side surfaces 5b of the sensor body 5 to grip the magnetic sensor B and fix it to the mounting substrate C. can do.

[0003]

However, according to the above configuration, if the thickness H ₂ of the sensor body 5 is slightly smaller than the height H ₁ of the gripping piece 3, the surface of the mounting substrate C is loosened. The detection sensitivity of the object to be detected (not shown) is remarkably lowered due to the displacement of the detection unit 6 of the magnetic sensor B due to the unstable attachment. Further, when the sensor main body 5 having a different thickness H ₂ is mounted, the sensor mounting tool A must be changed each time, and various kinds of sensor mounting tools A corresponding to this must be prepared. It is very uneconomical because it requires high-mix low-volume production.

Further, according to the above construction, since the mounting piece 4 is mounted on the mounting board C so as to project outward from the gripping piece 3, the mounting space for the magnetic sensor B is relatively wide, and the entire detecting device is provided. In addition to the increase in size and difficulty in densely mounting a plurality of magnetic sensors B, the screwing work by the screw body 17 is performed at two places, so that the magnetic sensors B
The installation work is extremely troublesome and inefficient.

On the other hand, conventionally, as shown in FIG. 8, a through hole 19 is formed in the sensor body 5, and a screw body 20 is inserted into the mounting hole 21 of the mounting board C to attach the magnetic sensor B to the mounting board. What is attached to C is known.

According to this structure, the mounting space for the magnetic sensor B can be made relatively small, and a plurality of magnetic sensors B can be densely mounted, and the screwing work by the screw body 20 is performed at one place. B mounting work is easy and efficient. However, the through hole 19 is formed in the sensor body 5.
Therefore, the setting space for the electronic parts and the like incorporated in the sensor main body 5 is narrowed, and if an attempt is made to secure a similar setting space, the sensor main body 5 becomes large.
Further, when the magnetic sensor B is attached, the screw body 20 is screwed in only one place.
When the magnetic sensor B displaces due to the unstable mounting, the detection sensitivity of the object to be detected is lowered. This means that the above-mentioned sensor B is not limited to a magnetic sensor, but has the same problem even if it is another sensor such as a photoelectric sensor.

The present invention has been made in order to solve the above-mentioned problems, and the sensor mounting work is easy and efficient, excellent detection sensitivity can be secured, and the sensor can be adapted to small lot production of various kinds. It is intended to provide a fixture.

[0008]

SUMMARY OF THE INVENTION A sensor mount according to the present invention includes a top piece bent in a substantially U shape for contacting the upper surface and both side surfaces of the sensor set on a mounting board and gripping the sensor. It is characterized in that it is provided with a gripping piece composed of both side pieces and an inclined piece formed by bending the respective tip portions of the both side pieces substantially symmetrically.

[0009]

In the above structure, each inclined piece is pressed against the peripheral edge of the opening of the mounting hole formed in the mounting board, and the spring reaction force of each inclined piece fixes the sensor to the mounting board. According to the above structure, the inclined piece of the sensor mounting member is inserted into the mounting hole in the mounting substrate, and is pressed against the opening peripheral edge portion of the mounting hole of the mounting substrate, and the spring reaction force fixes the sensor to the mounting substrate. Therefore, even if the height of the gripping piece and the thickness of the sensor body do not match, the surface of the mounting substrate can be stably mounted without rattling, and high detection sensitivity of the detected object can be secured. it can. Also, even if sensors with different thicknesses are mounted, it is not necessary to replace the sensor mounts each time, so it is possible to adapt to small-lot production of multiple products without preparing multiple types of sensor mounts. You can

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a sensor mount according to the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing an example of a sensor attachment according to the present invention applied to mounting a magnetic sensor. In the figure, A is a sensor fixture and B is
Is a magnetic sensor, and C is a mounting substrate. The sensor fixture A is formed by bending the gripping piece 3 composed of the top piece 1 and the side pieces 2 that are bent in a substantially U shape, and the tip portions of the side pieces 2 in different directions. The inclined piece 4 is provided. The magnetic sensor B includes a detection unit 6 on the upper surface 5a of the sensor body 5.
Is set, electronic parts and the like are incorporated in the main body 5, and a detection signal of an object to be detected (not shown) detected by the detection unit 6 is input to the control device via the cable 7. Is configured. The mounting board C is formed with a pair of mounting holes 8 into which the inclined pieces 4 of the sensor mounting tool A are inserted.

The magnetic sensor B is placed on the surface of the mounting board C, and then the tilting pieces 4 are attached to the mounting board C while the sensor body 5 is gripped by the gripping piece 3 of the sensor mounting tool A. The inclined pieces 4 are inserted into the mounting holes 8 and are brought into pressure contact with the opening peripheral edge portions 8a of the mounting holes 8 formed on the mounting board C (see FIG. 2). It is fixed to the mounting substrate C. At this time, the top piece 1 of the sensor mount A is fitted into the concave groove portion 5c formed on the upper surface 5a of the sensor body 5, and both side pieces 2 thereof come into contact with both side surfaces 5b of the sensor body 5, The magnetic sensor B can be gripped and fixed to the mounting substrate C.

According to the above construction, in the magnetic sensor B, the inclined piece 4 of the sensor mounting tool A is inserted into the mounting hole 8 in the mounting board C and is brought into pressure contact with the opening peripheral edge portion 8a of the mounting hole 8 in the mounting board C. Since it is fixed to the mounting substrate C by its spring reaction force, the height H ₁ of the gripping piece 3 and the sensor body 5 are
Even if the thickness H ₂ does not match as clearly shown in FIG. 2, the surface of the mounting substrate C can be stably mounted without rattling, and high detection sensitivity of the detected object can be secured. it can.
Further, even when the sensor main body 5 having a different thickness H ₂ is mounted, it is not necessary to replace the sensor mounting tool A each time, so that it is possible to prepare various kinds of sensor mounting tools A without preparing various kinds of sensor mounting tools A. Can be adapted for small-scale production.

Further, in the above structure, as shown in FIG. 3, a screw body 22 for pressing the upper surface of the sensor body 5 is screwed to the top piece 1, and the tip of each inclined piece 4 is substantially L-shaped. The locking pieces 9 are formed in a bent shape, and the sensor B is pressed against the mounting board C by screwing in the screw body 22, and the locking pieces 9 are locked to the back surface of the mounting board C. May be. According to this configuration, since the screw body 22 is screwed onto the upper surface of the fixture 3, the screw body 22 can be adjusted even when the thickness of the magnetic sensor B or the mounting substrate C changes, so that the screw body 22 can be securely tightened and fixed. In addition, the locking piece 9 can prevent disengagement due to vibration or the like.

In each of the above-mentioned embodiments, the inclined piece 4 is formed by bending the tip portions of the side pieces 2 in different directions, but as shown in FIG. 4, the tip portions of the side pieces 2 are formed. May be bent in a direction in which they face each other. According to this configuration, since they are arranged within the facing interval of the two side pieces 2,
The mounting space for the magnetic sensors B is narrowed to achieve miniaturization, and a plurality of magnetic sensors B can be mounted densely.

Further, as shown in FIG. 5, each of the inclined pieces 4 is
Tightening pieces 13 facing each other are provided at the tip of the bolts, and the bolts 10 and the nuts 1 are inserted in the mounting holes 14 formed in the respective fastening pieces 13.
The fastening member 12 made of 1 may be mounted as shown in FIG. 6, and the fastening pieces 13 may be configured to be pressed in the directions in which they approach each other. With this configuration, the magnetic sensor B is made more solid. Can be stably mounted on the mounting board C,
It is possible to further strengthen the pressure contact force due to the holding, and it is also possible to adjust the rattling due to the height variation of the magnetic sensor B.

[0016]

As described in detail above, the present invention makes contact with the upper surface and both side surfaces of a sensor set on a mounting board and grips the sensor by holding the sensor into a substantially U-shaped top piece and both side pieces. And a slanting piece formed by bending the tip portions of the both side pieces substantially symmetrically, and each slanting piece is pressed against the peripheral edge of the opening of the mounting hole formed in the mounting board. Since the sensor is fixed to the mounting board by the spring reaction force of each of the inclined pieces, even if the height of the gripping piece and the thickness of the sensor body do not match, the surface of the mounting board is deviated. It can be attached stably without sticking, and high detection sensitivity can be secured, and even when attaching sensors with different thickness, it is not necessary to replace the sensor mounting tool each time. Therefore, do not prepare many kinds of sensor mounts. It can be adapted to the production of diversified products.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an example of a sensor attachment according to the present invention applied to mounting a magnetic sensor.

FIG. 2 is a side view of the assembly of FIG.

FIG. 3 is an assembled side view showing another example of the sensor fixture according to the present invention applied to mounting a magnetic sensor.

FIG. 4 is an assembled side view showing another example of the sensor attachment according to the present invention applied to mounting a magnetic sensor.

FIG. 5 is an exploded perspective view showing still another example of the sensor fixture according to the present invention applied to mounting a magnetic sensor.

FIG. 6 is a side view of the same assembly of FIG.

FIG. 7 is an exploded perspective view showing an example of a conventional sensor mounting tool applied to mounting a magnetic sensor.

FIG. 8 is an exploded perspective view showing another example of a conventional sensor mounting tool applied to mounting a magnetic sensor.

[Explanation of symbols]

 A sensor mounting tool B sensor C mounting board 1 top piece 2 both side pieces 3 gripping piece 4 inclined piece 5a upper surface 5b both side surfaces 8 mounting hole 8a opening peripheral edge 9 locking piece 12 tightening member 13 tightening piece 22 screw body

Claims (3)

[Claims] 1. A gripping piece composed of a substantially U-shaped bent top piece and both side pieces that come into contact with the upper surface and both side surfaces of the sensor set on the mounting substrate and grip the sensor, and the both side pieces. Each of the inclined pieces is formed by bending each of the tip portions substantially symmetrically, and presses each of the inclined pieces against an opening peripheral edge portion of a mounting hole formed in the mounting substrate, A sensor mounting tool, characterized in that the sensor is fixed to a mounting substrate by a spring reaction force. 2. A screw body that is screwed into the top piece and presses the upper surface of the sensor, and the tip end of each of the inclined pieces is approximately L.
And a locking piece formed by bending it into a letter shape, pressing the sensor by pressing the screw body into contact with the mounting board, and locking each locking piece on the back surface of the mounting board. The sensor mount according to claim 1, wherein the sensor mount is configured to be. 3. The tightening member for bending each of the inclined pieces in the facing direction, and projecting the tightening pieces facing each other at the tip end of each of the inclined pieces so as to press each of the tightening pieces in the direction of approaching each other. The sensor attachment according to claim 1, further comprising an attachment member.