JP2567501Y2 - Position detection device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position detecting device, and particularly to a position detecting device such as a magnetic sensor switch for detecting the position of a piston in a cylinder device operated by compressed air or the like. Regarding effective technology.

[0002]

2. Description of the Related Art For example, as a position detecting device, a magnetic sensor switch which is attached to an outer peripheral surface of a cylinder device or the like and detects an operating position of a piston is known. A position detection mechanism is provided inside, and a wiring electrically connected to the position detection mechanism is taken out from a wiring outlet on the outer surface of the case and extended to the outside.

[0003]

However, in the above-described position detecting device, the wiring outlet is fixed at a predetermined position, for example, it is opened at one end surface side of the case body. The take-out direction is one direction, and the degree of freedom is limited.

An object of the present invention is to provide a position detecting device capable of improving a degree of freedom in a wiring extracting direction.

The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0006]

Means for Solving the Problems Of the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

In other words, the structure of the position detecting device of the present invention comprises a case body having an opening having a substantially inverted L-shaped cross section formed at one end side and a position detecting mechanism provided inside, and wiring for the position detecting mechanism. An opening is provided in one piece, and a cover having a substantially inverted L-shaped cross section is attached to the opening and closes the opening, and the cover connects the wiring outlet to an upper surface of the case body. The wiring can be attached to the opening where the wiring outlet is located on one end side of the case body by inverting the wiring.

In this case, the cover may be detachably attached to the opening of the case body.

An engagement portion is formed on a free end side of each piece of the cover, and engaged portions respectively engaged with the engagement portions are formed at upper and lower open ends of the open portion. It can be structured.

[0010]

According to the structure of the position detecting device of the present invention described above, the cover can be attached to the opening where the wiring outlet is on the upper surface side of the case main body. Since the wiring outlet can be attached to the open portion with the one end face of the case main body, the wiring can be taken out from the wiring outlet in two directions: the upper surface side and the one end surface side of the case main body. Therefore, the degree of freedom in the wiring extraction direction can be improved.

Also, since one case body and one cover can improve the degree of freedom in the wiring extraction direction, it is possible to prevent an increase in the number of parts due to the degree of freedom, and to increase product variations. Can be achieved.

In this case, for example, engaging portions are respectively formed on the free ends of the respective pieces of the cover, and engaged portions respectively engaged with the engaging portions are formed at upper and lower open ends of the open portion. If the cover is configured to be detachably attached to the opening of the case body as a formed structure, it is necessary to change the wiring extraction direction after the position detection device is attached to the position detection device. In some cases,
By removing the cover from the open portion of the case body, turning over the cover, and attaching the cover to the open portion again, it is possible to easily change the wiring extraction direction.

[0013]

1 is a perspective view showing a position detecting device according to an embodiment of the present invention in which a cover is removed, FIG. 2 is a perspective view showing the position detecting device in a state where a cover is attached, and FIG. FIG. 4 is a sectional view showing the position detecting device with a part thereof omitted.

The position detecting device of this embodiment is a magnetic sensor switch applied to a cylinder device or the like as a fluid pressure operated device operated by compressed air or the like. As shown in FIG. An opening 1 is formed at one end side, and a case body 3 in which a position detecting mechanism 2 is provided and a wiring outlet 4 of the position detecting mechanism 2 are formed in one piece. Opened part 1
And a cover 5 having a substantially inverted L-shaped cross section for closing the cover.

The case body 3 is formed of a synthetic resin or the like, and a through hole 6 is formed through the upper surface. A mounting screw (not shown) penetrates the through hole 6, and the case body 3 is attached to an outer peripheral surface of a cylinder device (not shown) by the mounting screw.

As shown in FIG. 3 and the like, a display window 7 is provided on the upper surface of the case main body 3, and the blinking of the light emitting diode 8 can be visually recognized through the display window 7.

That is, in the position detecting device mounted on the outer peripheral surface of the cylinder device or the like, the internal reed switch (not shown) is turned on by detecting the magnetism of a magnet (not shown) provided on the piston. Or OFF
This signal is sent to the outside through the wiring to detect the position of the piston, and the light emitting diode 8 at the time of this detection is detected.
Is visible from outside through the display window 7.

The light emitting diode 8 is disposed on a circuit board 9 of the position detecting mechanism 2. The circuit board 9 is electrically connected to a wiring 10 that is drawn out of the case body 3 from the wiring outlet 4.

At the upper and lower open ends of the open portion 1 of the case body 3, circular recessed engaged portions 11 are formed, and on both inner side surfaces of the case body 3, square recessed engaged portions are formed. 12 are formed as a pair facing each other.

Further, a recessed engaged portion 13 is formed on one inner side surface of the case body 3.

Next, the cover 5 is formed of a synthetic resin or the like, and a tongue-shaped engaging portion 15 is provided on the free end of each piece.
Are formed respectively.

Further, circular projection-shaped engaging portions 16 are respectively formed on both outer surfaces of the cover 5, and a quadrangular projection-shaped engaging portion 17 is also formed on one side surface of the cover 5.

The cover 5 having such a structure can be attached to the open portion 1 in which the wiring outlet 4 is on the upper surface side of the case main body 3. On the other hand, the wiring outlet 4 is turned upside down. Opening part 1 on one end side of case body 3
It is possible to attach to The cover 5 is detachably attached to the opening 1.

Then, the cover 5 is pushed into the opening 1 of the case body 3 so that the opening 1 is
Is expanded by its elastic deformation in the short direction of
The cover 5 is engaged with and attached to the case body 3 by fitting the engaged parts 11, 12, 13 with the engaged parts 11, 12, 13, respectively.

Next, the operation of this embodiment will be described.

For example, in the position detecting device shown in FIG. 2, the cover 5 is attached with the wiring outlet 4 on the upper surface side of the case main body 3, so that the wiring extracting direction from the wiring outlet 4 is on the upper surface side. ing.

In such an attached state, the wiring take-out direction is set to the one end face side of the case body 3, that is, the case body 3
1, the cover 5 is pulled out from the opening 1 and removed as shown in the lower part of FIG. 1, and then the cover 5 is turned 90 degrees as shown in the upper part of FIG. The outlet 4 is located on one end side of the cover 5.

Then, the cover 5 in the inverted state is pushed into the opening 1 of the case body 3 and attached to the opening 1.

With this attachment, the wiring outlet 4 of the cover 5
Is located on one end surface side of the case main body 3, and therefore, the wiring extraction direction from the wiring outlet 4 is set to the one end surface side (longitudinal direction) of the case main body 3.

As described above, according to the position detecting device of this embodiment, the direction of taking out the wiring from the wiring outlet 4 can be selected in two directions, that is, the upper surface side and the one end surface side of the case main body 3. The degree of freedom in the take-out direction can be improved.

Also, since one case body 3 and one cover 5 can improve the degree of freedom in the wiring extraction direction, it is possible to prevent an increase in the number of parts due to the improvement in the degree of freedom, and product variations. Can be increased.

Further, since the cover 5 is removably attached to the open portion 1 of the case body 3, it is necessary to change the wiring extraction direction after attaching the position detecting device to the position detecting device such as a cylinder device. In such cases as
By detaching the cover 5 from the open portion 1 of the case body 3, reversing the cover 5 and reattaching the cover 5 to the open portion 1, the wiring extracting direction can be easily changed.

Although the invention made by the present inventors has been specifically described based on the embodiment, the invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the invention. Needless to say.

For example, the position detecting device of the above embodiment
Although applied to a cylinder device, etc., the position detecting device in the present invention is not limited to the application of such a cylinder device, and is applied to, for example, an air hand as a fluid pressure operated device opened and closed by a piston. It is also possible.

In the above embodiment, the magnetic sensor switch is applied as the position detecting device. However, the position detecting device in the present invention is not limited to the application of such a magnetic sensor switch. It can be applied to a position detecting device.

[0036]

[Effects of the Invention] Of the ideas disclosed in the present application, the effects obtained by typical ones will be briefly described.
It is as follows.

(1) According to the structure of the position detecting device of the present invention, the cover can be attached to the opening where the wiring outlet is on the upper surface side of the case main body. Since the wiring outlet can be attached to the open portion with the one end surface side of the case main body, the wiring extraction direction from the wiring outlet can be two directions of the upper surface side and the one end surface side of the case main body. Since the direction can be selected, the degree of freedom in the wiring extraction direction can be improved.

(2) One case body and one cover can improve the degree of freedom in the wiring extraction direction, so that an increase in the number of parts due to the degree of freedom can be prevented, and product variations can be prevented. Increase can be achieved.

(3) In the above case, for example, an engaging portion is formed on the free end side of each piece of the cover, and the engaged portions respectively engaged with the engaging portions are vertically above and below the opening portion. If the cover is detachably attached to the opening of the case body as a structure formed at the open end of the case, it is necessary to change the wiring extraction direction after attaching the position detection device to the position detection device. In cases such as the above, when the cover is removed from the open portion of the case main body, the cover is turned over, and the cover is attached to the open portion again, so that the wiring extracting direction can be easily changed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state of removing a cover of a position detecting device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a cover attached state of the position detecting device.

FIG. 3 is a sectional view showing the position detecting device.

FIG. 4 is a cross-sectional view showing the position detection device with a part thereof omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Opening part 2 Position detection mechanism 3 Case main body 4 Wiring outlet 5 Cover 6 Through hole 7 Display window 8 Light emitting diode 9 Circuit board 10 Wiring 11 Engaged part 12 Engaged part 13 Engaged part 15 Engaged part 16 Engaging part 17 Engaging part

Claims (3)

(57) [Scope of request for utility model registration] An opening having an L-shaped cross section is formed at one end, and a case body having a position detecting mechanism provided therein, and a wiring outlet of the position detecting mechanism are formed in one piece. A cover having an L-shaped cross section which is attached to the open portion and closes the open portion, and the cover is attachable to the open portion with its wiring outlet on the upper surface side of the case body. The position detecting device is characterized in that by being inverted, it is possible to mount the wiring outlet on the one end face side of the case body. 2. The position detecting device according to claim 1, wherein said cover is detachably attached to an opening of said case body. 3. An engaging portion is formed on a free end side of each piece of the cover, and engaged portions respectively engaged with the engaging portions are formed at upper and lower open ends of the open portion. The position detecting device according to claim 1 or 2, wherein