JPH0545516U - Position detector - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a position detection device capable of improving the degree of freedom in the wiring extraction direction. [Structure] A case body 3 having an open portion 1 having a substantially inverted L-shaped cross section formed on one end side and having a position detecting mechanism 2 provided therein, and a wiring outlet 4 of the position detecting mechanism 2 are provided in one piece And a cover 5 which is attached to the opening 1 and closes the opening 1 and which has a substantially inverted L-shaped cross section. The cover 5 has its wiring outlet 4 on the upper surface side of the case body 3. It can be attached to the open portion 1, and by reversing it, it can be attached to the open portion 1 with the wiring outlet 4 on the one end face side of the case body 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a position detecting device, and more particularly to a technique effectively applied to a position detecting device such as a magnetic sensor switch for detecting the position of the piston in a cylinder device operated by compressed air or the like.

[0002]

[Prior Art]

 For example, as a position detection device, a magnetic sensor switch or the like that is attached to the outer peripheral surface of a cylinder device or the like and detects the operating position of the piston is known. However, such a position detection device has a position detection mechanism inside a case. Is provided, and the wiring electrically connected to the position detection mechanism is taken out from the wiring outlet on the outer surface of the case and extended to the outside.

[0003]

[Problems to be solved by the device]

 By the way, in the position detecting device as described above, since the wiring outlet is fixed at a predetermined position, for example, it is formed on one end face side of the case body, the wiring taking-out direction is one direction. Its freedom is limited.

An object of the present invention is to provide a position detecting device that can improve the degree of freedom in the wiring extraction direction.

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

[0006]

[Means for Solving the Problems]

 Of the devices disclosed in the present application, a brief description will be given to the outline of a typical one.

That is, in the structure of the position detecting device of the present invention, an open part having a substantially inverted L-shaped cross section is formed at one end side, and a case main body having a position detecting mechanism provided therein, and the position detecting mechanism. A wiring outlet is provided in one piece, and a cover having a substantially inverted L-shaped cross section which is attached to the opening and closes the opening is provided, and the cover connects the wiring outlet to the case body. The structure is such that it can be attached to the open part on the upper surface side of the case, and by reversing it, the wiring outlet can be attached to the open part on the one end surface side of the case body. Is.

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

Engagement portions are respectively formed on the free end sides of the respective pieces of the cover, and engaged portions respectively engaged with the engagement portions are formed at upper and lower open ends of the opening portion. Can be a structure.

[0010]

[Action]

 According to the structure of the position detecting device of the present invention described above, the cover can be attached to the open portion whose wiring outlet is on the upper surface side of the case body, and the wiring can be removed by reversing the wiring. Since the outlet can be attached to the open part with the one end surface side of the case main body, the wiring take-out direction from the wiring take-out direction is two directions, that is, the upper surface side and the one end surface side of the case body. Since it can be selected, the degree of freedom in the wiring extraction direction can be improved.

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

In this case, for example, engaging portions are respectively formed on the free end sides of the respective pieces of the cover, and engaged portions respectively engaging with the engaging portions are provided at upper and lower open ends of the opening portion. Assuming that the cover is detachably attached to the open part of the case body as the formed structure, it is necessary to change the wiring extraction direction after the position detection device is attached to the position detection device. In the case where a problem occurs, the wiring take-out direction can be easily changed by removing the cover from the open part of the case body, reversing it, and reattaching it to the open part.

[0013]

【Example】

 1 is a perspective view showing a state where a cover of a position detecting device according to an embodiment of the present invention is removed, FIG. 2 is a perspective view showing a state where a cover of the position detecting device is attached, and FIG. 3 is a cross section showing the position detecting device. FIG. 4 and FIG. 4 are sectional views showing the position detecting device with a part thereof omitted.

The position detecting device of the present 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, and as shown in FIG. The open body 1 is formed at one end side, and the case body 3 in which the position detection mechanism 2 is provided and the wire outlet 4 of the position detection mechanism 2 are opened in one piece, and A cover 5 having a substantially inverted L-shaped cross section which is provided and closes the open portion 1.

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

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

That is, the position detecting device attached to the outer peripheral surface of the cylinder device or the like detects an internal reed switch (not shown) by detecting the magnetism of a magnet (not shown) provided on the piston. It is turned on or off, and this signal is sent to the outside through a wire to detect the position of the piston, and the lighting of the light emitting diode 8 at the time of this detection is visually recognized from the outside through the display window 7.

The light emitting diode 8 is arranged on the circuit board 9 of the position detection mechanism 2. The circuit board 9 is electrically connected to the wiring 10 taken out of the case body 3 from the wiring outlet 4.

Circular recessed engaged portions 11 are formed at upper and lower open ends of the open portion 1 of the case body 3, and square recessed engaged portions are formed on both inner side surfaces of the case body 3. A pair of parts 12 are formed so as to face each other.

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

Next, the cover 5 is molded of synthetic resin or the like, and tongue-shaped engaging portions 15 are formed on the free end sides of the respective pieces.

Further, the circular protrusion-shaped engaging portions 16 are formed on both outer side surfaces of the cover 5, and the square protrusion-shaped engaging portions 17 are 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 located on the upper surface side of the case body 3, and on the other hand, by inverting the wiring outlet 4, the wiring outlet 4 can be installed. The case body 3 can be attached to the open portion 1 on one end surface side. The cover 5 is detachably attached to the opening 1.

The cover 5 is pushed into the opening portion 1 of the case body 3 to expand the opening portion 1 in the lateral direction of the case body 3 by its elastic deformation, and the engaging portions 15, 16 , 17 and the engaged parts 11, 12, and 13 are fitted to each other, so that the cover 5 is engaged with and attached to the case body 3.

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 with the wiring outlet 4 on the upper surface side of the case body 3, so that the wiring outlet direction from the wiring outlet 4 is the upper surface side. ing.

In such an attached state, when the wiring take-out direction is the one end face side of the case body 3, that is, the longitudinal direction of the case body 3, the cover 5 is provided as shown in the lower part of FIG. After pulling out from the opening 1 and removing it, the cover 5 is turned over 90 degrees so that the wiring outlet 4 is located on one end surface side of the cover 5 as shown in the upper part of the drawing.

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

By this attachment, the wiring outlet 4 of the cover 5 is located on the one end face side of the case body 3, and therefore, the wiring take-out direction from the wiring outlet 4 is the one end face side (longitudinal direction) of the case body 3. It is said that.

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

Further, since the degree of freedom in the wiring take-out direction can be improved by one case body 3 and one cover 5, it is possible to prevent an increase in the number of parts due to the improvement in the degree of freedom, and to improve the product. It is possible to increase variations.

Further, since the cover 5 is detachably attached to the open portion 1 of the case body 3, it is necessary to change the wiring extraction direction after the position detecting device is attached to the position detecting device such as the cylinder device. In the case where a problem occurs, by removing the cover 5 from the open portion 1 of the case body 3 and reversing it and reattaching it to the open portion 1, the wiring take-out direction can be easily changed.

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

For example, although the position detecting device of the above-mentioned embodiment is applied to a cylinder device or the like, the position detecting device in the present invention is not limited to the application of such a cylinder device, and for example, it can be opened and closed by a piston. It can also be applied to an air hand as a fluid pressure actuated device to be actuated.

Further, in the above-mentioned embodiment, the magnetic sensor switch is applied as the position detecting device, but the position detecting device in the present invention is not limited to the application of such a magnetic sensor switch, and any position detecting device is applicable. It can be applied to position detection devices.

[0036]

[Effect of the device]

 The effects obtained by the typical ones of the inventions disclosed by the present application will be briefly described as follows.

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

(2) Since the degree of freedom in the wiring take-out direction can be improved by one case body and one cover, 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.

(3) In the above case, for example, the engaging portion is formed on the free end side of each piece of the cover, and the engaged portion that engages with the engaging portion is the open portion. If the cover is attached to the open part of the case body in a detachable manner as the structure formed at the upper and lower open ends of the case, the wiring take-out direction is changed after the position detecting device is attached to the position-detected device. If the need arises, the cover can be removed from the open part of the case body, inverted, and reattached to the open part to easily change the wire extraction direction.

[Brief description of drawings]

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

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

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

FIG. 4 is a sectional view showing a part of the position detection device.

[Explanation of symbols]

 1 Opening Part 2 Position Detection Mechanism 3 Case Body 4 Wiring Outlet 5 Cover 6 Through Hole 7 Display Window 8 Light Emitting Diode 9 Circuit Board 10 Wiring 11 Engagement Part 12 Engagement Part 13 Engagement Part 15 Engagement Part 16 Engagement part 17 Engagement part

Claims (3)

[Scope of utility model registration request] 1. A case body in which an open portion having a substantially inverted L-shaped cross section is formed at one end side and a position detecting mechanism is provided inside, and a wire outlet of the position detecting mechanism is provided in one piece. , A cover having a substantially inverted L-shaped cross-section that is attached to the open portion and closes the open portion, and the cover can be attached 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 the wiring outlet can be attached to the open portion with the one end face side of the case body by reversing. 2. The position detecting device according to claim 1, wherein the cover is detachably attached to an opening portion of the case body. 3. An engaging portion is formed on the free end side of each piece of the cover, and engaged portions respectively engaging with the engaging portion are formed at upper and lower open ends of the opening portion. The position detecting device according to claim 1 or 2, characterized in that.