JPH0631727Y2 - Transmission type photo interrupter adapter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention can hold a transmissive photointerrupter that operates when the optical path is cut off or conducted, and for example, a sheet-shaped object to be detected such as paper moving in the path. The present invention relates to a transmissive photointerrupter adapter that includes an actuator that rotates in contact with a member, and that cuts and conducts an optical path by the rotating operation of the actuator and can detect the presence or absence of a detected member, passage, and the like.

[Prior Art] A transmissive photo interrupter is well known as a non-contact type optical sensor because it is excellent in small size, high reliability, long life, and quick response.

For example, the transmission type photo interrupter 71 shown in FIG.
Is a commercially available general integrated type structure, and includes a light emitting section 72 and a light receiving section 73 facing each other in a separated state,
The light emitting part 7 is composed of a connecting part 74 that integrally connects the two.
2 and a light receiving portion 73, and a detection concave portion 75 is provided between the light receiving portion 73 and the light receiving portion 73.
3, a photodiode or a phototransistor is used as a light receiving element, and a light emitting section 72 and a light receiving section 73 are used.
An optical path is formed between the slits 76 respectively formed on the opposing surfaces of the light receiving section 73, and a member to be detected is interposed in the detection concave section 75 to interrupt or conduct the optical path so that a current flows or does not flow to the light receiving section 73. It is something that is operated.
The transmissive photo interrupter 71 can be easily attached to a predetermined position by screwing a mounting seat 77 provided integrally therewith or by directly soldering an output lead wire 78 to a substrate or the like. It can be installed and is used as a sensor component in various devices.

However, this type of transmissive photo interrupter 7
1, the depth distance from the position of the slit 76 to the innermost connecting portion 74 is fixed in the detection concave portion 75, and the length thereof is about 5 to 15 mm.
Since it is relatively small, when a sheet-shaped member such as a paper sheet is to be directly used as the member to be detected, the end portion or the peripheral portion of the member to be detected is inserted into the detection recess 75 of the transmissive photointerrupter 71. Will be done. So, for example,
If it is necessary to perform detection at a position other than the edge or periphery of the paper, such as a punch hole formed in the center of the paper, or if there is no space for mounting the transmissive photointerrupter 71, etc., directly Since the transmission type photo interrupter 71 cannot be used, it is necessary to separately use an actuator and intervene this to perform detection. In addition, depending on the shape of the member to be detected or the member to be detected is transparent, direct detection is still impossible. Therefore, an actuator is required.

Conventionally, as a configuration using such an actuator,
The following is known.

For example, as shown in FIG.
It has a structure of a two-arm lever rotatable around a rotary shaft portion 82, and a detection portion 83 is formed at an end portion of one arm and an optical path blocking portion 84 is formed at an end portion of the other arm. At the same time, it is urged counterclockwise in the drawing by the urging member formed by the spring member 86, and the detected member 85 is urged in the passage 87.
In the case where there is no light, the detection unit 83 always faces the recessed portion 88 formed in the passage 87 through which the member to be detected 85 moves, as shown by the solid line, and the optical path blocking unit 84 detects the transmissive photointerrupter 71. Since the optical path between the slits 76 is cut off in the concave portion 75, the light receiving portion 73 is kept in a state in which no current flows, and the detection of the absence of the detected member is performed.

On the other hand, when the detected member 85 moves in the direction of the arrow B and passes through the passage 87, the detection unit 83 causes the detected member 85 to move.
The actuator 81 contacts with the spring member 86 with the rotation supporting portion 82 as a fulcrum.
Rotating clockwise in the figure against the urging force of the optical path blocking portion 84, the optical path blocking portion 84 is deviated from the optical path between the slits 76 in the detection recess 75 of the transmissive photointerrupter 71, whereby the optical path is conducted, A current flows in the light receiving section 73, and the presence of the detected member is detected.

There is also known a so-called separation type transmissive photointerrupter in which a light emitting part and a light receiving part are separated, and a dimension corresponding to the above length can be freely set, whereby the actuator described above is provided. It is possible to perform the above detection without interposing 81, but in this case, when the photointerrupter is attached, the optical path between the slits needs to be separately adjusted, so that it is troublesome to perform the adjustment work. There is an inconvenience that the work is not easy. Therefore, compared with the separated type, the integrated type does not require a troublesome adjustment work at the time of mounting and has an advantage that the mounting is easy.

In addition, although it is not the case where the presence or absence of the detected member moving in the passage is detected, the sheet stacked in the stacker is used as the detected member and whether or not a predetermined amount is accumulated in the stacker is integrated structure. Japanese Patent Application Laid-Open No. 59-152403 discloses a case where an actuator is used for detection by the transmission type photo interrupter.

[Problems to be Solved by the Invention] By the way, the conventional transmissive photointerrupter 7 is used.
1, the actuator 81 is used to detect the detected member 8
5, the actuator 81, the spring member 86, and the transmissive photointerrupter 71 need to be separately mounted at proper positions with respect to the detected member 85, but the work is troublesome. In addition, there were problems such as high accuracy could not be obtained.

In addition, when the shape of the detected member 85 is different, and the detection mode is different due to the different moving direction of the detected member 85, an appropriate actuator and spring member are prepared accordingly and The above-mentioned problem was serious because it was necessary to attach the transmission photointerrupter 71 again.

Further, in adjusting the position of the actuator 81 with respect to the detected member 85, highly accurate adjustment is required as described below.

That is, the detection accuracy of the transmissive photointerrupter 71 depends on the slit width m of the slit 76. Usually, the slit width m is generally about 0.5 mm. Therefore, if the movement amount of the optical path blocking portion 84 of the actuator 81 accompanying the response of the detection portion 83 that is in contact with the detection target member 85 is not less than the slit width m,
The optical path cannot be blocked or conducted. In addition, the optical path blocking unit 84
Must be properly adjusted to a position that deviates from the optical path of the slit 76 and a position that blocks the optical path during detection and detection.

The amount of rotation of the actuator 81 or the amount of movement of the optical path blocking portion 84 in FIG. 8 can be made large due to the presence of the recessed portion 88, but such a structure is impossible and the range corresponding to the thickness of the detected member 85. When the detection unit 83 responds and the optical path blocking unit 84 moves, the positional relationship between the actuator 81 and the transmissive photointerrupter 71 must be adjusted with high accuracy.

Therefore, conventionally, the mounting height of the actuator 81 or the height of the passage 87 is finely adjusted, or the detection unit 8 is used.
Although the tip of 3 was finely adjusted by cutting, etc., with this conventional fine adjustment, the adjustment work is not easy and troublesome,
Moreover, high position accuracy was not expected, which was a problem.

The present invention has been made in view of the above conventional problems, and an object thereof is to provide a transmissive photointerrupter to
When performing detection of a member to be detected by using an actuator, a troublesome work such as separately mounting the actuator, the biasing member and the transmission type photo interrupter at predetermined positions with respect to the member to be detected. It is not necessary to obtain high accuracy, and moreover, simply by preparing various different actuators and replacing them, the shape of the member to be detected differs and the detection mode accompanying the movement direction differs The present invention provides an adapter for a transmissive photointerrupter that can easily and quickly cope with such cases.

Further, the present invention provides a transmissive photointerrupter adapter that enables fine adjustment to obtain sufficiently high position accuracy in adjusting the position of an actuator with respect to a member to be detected and that makes the work easy and quick. It is in.

[Means for Solving the Problems] In the present invention, in order to solve the above-mentioned conventional problems,
The detecting member has a detecting recess between the light emitting unit and the light receiving unit facing each other in a separated state, and has a storage unit for storing a transmissive photointerrupter which operates in accordance with interruption and conduction of an optical path formed in the detecting recess, and also as a member to be detected. On the other hand, a housing that can be installed at a predetermined position and that can hold the transmission photointerrupter in the storage portion, and an arm member protruding from the holding member, and a housing formed at the tip of the arm member. An actuator that is rotatably supported by the rotation support part and has a detection part corresponding to the detected member and an optical path blocking part that enters the storage part and enters the detection recess; A biasing member that is supported by the housing and biases the actuator toward the original position; and when the detection unit contacts and reacts with the detection target member, The chewator rotates from the original position against the urging force of the urging member, and the optical path blocker moves in the detection recess to block the optical path and conduct the current to detect the detected member. The present invention provides a transmissive photointerrupter adapter characterized by the above.

Further, a supporting member supported by the holding member, a pressing member, and a pressing member which is formed between the pressing member and the supporting member at a central portion of the pressing member and has a fulcrum function capable of elastic deformation. An adjusting tool that is integrally formed with an elastic deformation fulcrum portion that allows rotation is provided, and the pressing member is rotated against the elastic force of the elastic deformation fulcrum portion so that the tip end portion of the pressing member is Adjusting means for pressing the arm member to elastically deform the arm member and varying the amount of rotation of the pressing member is provided at the rear end portion of the pressing member, and the elasticity of the arm member according to the adjustment of the adjusting means. A configuration is proposed in which the rotation support portion is moved toward and away from the detected member by deformation, and the corresponding position of the actuator corresponding to the detected member is adjusted.

[Operation] The present invention has a transmission type photointerrupter having the above-described configuration, which has a detection recess between the light emitting portion and the light receiving portion corresponding to the separated state, and operates when the optical path formed in the detection recess is interrupted or conducted. A housing having a storage part for storing and capable of being installed at a predetermined position with respect to a member to be detected and capable of holding the transmissive photointerrupter in the storage part, and an arm member protruding from the holding member. When,
An optical path, which is rotatably supported by a rotation supporting portion formed at a tip end portion of the arm member, is removably supported, and enters a detection portion corresponding to the detected member and the storage portion and enters the detection recess. An actuator having a cutoff portion; and an urging member that is supported by the housing and urges the actuator toward an original position, and the detector moves in contact with the member to be detected. The actuator rotates from the original position against the urging force of the urging member, and the optical path blocking unit moves in the detection recess to block the optical path and conduct the electric current to detect the detected member. With this configuration, when the detection member is detected by using the actuator with the transmissive photointerrupter, the holding portion of the housing is installed at a predetermined position with respect to the detection member. The actuator, the biasing member and the transmission type photo interrupter can be held in proper positional relations with respect to the member to be detected by simply squeezing, and simple attachment work is sufficient and high positional accuracy can be obtained. Even if an actuator is prepared and the actuator is replaced, it is possible to easily and quickly cope with a case where the shape of the member to be detected is different or the detection mode is different due to the different moving direction.

Further, a supporting member supported by the holding member, a pressing member, and a pressing member which is formed between the pressing member and the supporting member at a central portion of the pressing member and has a fulcrum function capable of elastic deformation. An adjusting tool that is integrally formed with an elastic deformation fulcrum portion that allows rotation is provided, and the pressing member is rotated against the elastic force of the elastic deformation fulcrum portion so that the tip end portion of the pressing member is Adjusting means for pressing the arm member to elastically deform the arm member and varying the amount of rotation of the pressing member is provided at the rear end portion of the pressing member, and the elasticity of the arm member according to the adjustment of the adjusting means. Due to the configuration in which the rotation support portion is moved toward and away from the detection target member and the corresponding position of the actuator corresponding to the detection target member is adjusted, the rotation support portion is installed after the holding member of the housing is installed. It may fine-tune the adjustment of the position of the actuator relative to the detection member, easily and quickly, and with high accuracy.

[Embodiment] An embodiment of the transmissive photointerrupter adapter according to the present invention will be described first with reference to FIGS. 1 and 2.

In the figure, reference numeral 1 denotes a transmissive photointerrupter, which includes a light emitting portion 2 and a light receiving portion 3 facing each other in a separated state, and a connecting portion 4 integrally connecting the light emitting portion 2 and the light receiving portion 3 between the light emitting portion 2 and the light receiving portion 3. It has a detection recess 5 and is formed in a U-shape. In the detection concave portion 5, slits 6 are respectively provided on the facing surfaces of the light emitting unit 2 and the light receiving unit 3, and the light path formed between the slits 6 is blocked or made conductive, whereby the light receiving unit 3
The operation is performed in such a manner that an electric current flows in or out of the electric current. Here, the light emitting unit 2 is a light emitting diode or the like,
The light receiving section 3 is composed of light receiving elements such as photodiodes and phototransistors. Reference numeral 7 is an output pin, which is projected from the connecting portion 4 to the outside. Reference numeral 8 is a horizontally arranged passage member. The passage type photo interrupter is formed along the passage 9 formed on the upper surface of the passage member. A sheet-shaped member to be detected 10 such as paper, which is detected by 1, is moved. Reference numeral 11 denotes a protection member for the passage 9, which is arranged above the passage member 8 in parallel with a space therebetween.

Reference numeral 12 denotes a housing, which is composed of a holding member 13 and an arm member 14, and is preferably made of synthetic resin and integrally molded.

The holding member 13 has a box shape with an open lower portion and one side portion, a storage portion 15 for storing the transmissive photointerrupter 1 is formed therein, and a holding member 13 is installed at a lower end peripheral portion. The flange 16 is formed and the installation flange 1
6 is fixed to the upper surface of the protection member 11 with a screw 17 so as to be installed at a predetermined position with respect to the detected member 10, and the transmission type photointerrupter 1 is stored in the storage unit 15.
It is designed to be held at.

In FIG. 2, 19 is a screw hole for the screw 17, which is formed in a pair of elongated holes on both sides of the storage portion 15 in the installation flange 16, and in the present embodiment, the detected member 10 of the detected member 10 is formed. The installation position of the holding member 13 can be adjusted along the moving direction.

In the storage unit 15, the transmissive photo interrupter 1 is
The connecting portion 4 is located on one open side portion of the holding member 13, and the tips of the light emitting portion 2 and the light receiving portion 3 are in contact with the side portion 20 on the opposite side to the open one side portion. It is positioned so that the optical path between the slits 6 is stored in a horizontal state. Here, the space between the light emitting part 2 and the light receiving part 3 is covered with a holding member 13, and if this is made of an opaque material,
It is possible to prevent a risk that the transmissive photointerrupter 1 malfunctions due to natural light entering from the outside, and stable operation can be enabled.

If the height dimension of the storage portion 15 is made slightly smaller than the height dimension of the transmissive photointerrupter 1, the screw 1 is formed.
By tightening 7, the transmissive photo interrupter 1
It is sandwiched between the ceiling surface of the storage unit 15 and the upper surface of the protection member 11, and the holding thereof is facilitated. Therefore, by loosening the screw 17 a little from the tightened state, the transmissive photointerrupter 1 can be moved in and out of the storage portion 14 from the open one side portion of the holding member 12, and the transmissive photointerrupter 1 can be moved. Maintenance and inspection work will be quick and easy.

The arm member 14 is provided on the holding member 13 from the side portion 20 so as to face the tips of the light emitting unit 2 and the light receiving unit 3, and the arm members 14 are provided in a protruding manner at a distance from each other. It is arranged along with. Between the arm members 14,
The light emitting portion 2 and the light receiving portion 3 are communicated with each other via a side portion 20 of the holding member 13 and a notch portion 21 formed in the mounting flange 16 in the portion.

Reference numeral 22 denotes an actuator, which is disposed between the arm members 14 and has one end portion which is pivotally supported by a shaft hole 23 which is formed at a tip end portion of the arm member 14 and constitutes a pivotal support portion.
4, the detection unit 25 is formed so as to project downward, and the other end passes through the cutout 21 and the storage unit 1
It has an optical path blocking portion 26 which enters the optical path 5 and enters the detection recess 5 and blocks the optical path between the slits 6. Detector 2
Numeral 5 faces the detection target member 10 through the detection hole 27 formed in the protection member 11, and responds by contacting the detection target member 10, whereby the actuator 22 rotates about the shaft hole 23 as a fulcrum. The optical path blocker 26 blocks the optical path between the slits 6 and allows conduction. Here, the rotating shaft portion 24
Is easily disengaged from the shaft hole 23 by widening the tip of the arm member 24, whereby the actuator 22 can be attached and detached.

Reference numeral 28 denotes a leaf spring that constitutes an urging member. A base end portion of the leaf spring is fixedly supported on the upper portion of the holding member 13, and a tip portion of the leaf spring is convexly bent and formed on the center and the upper portion of the actuator 22. The portion 29 is pressed against, and the actuator 22
1 is urged clockwise in FIG. 1 toward the original position.

The width of the leaf spring 28 is formed wider than the width between the arm members 14, and before the holding member 13 is installed, the leaf spring 28 does not press the pressed portion 29 of the actuator 22. The leaf spring 28 is located above the arm member 14, and after the installation, the pressed contact portion 29 projects upward from the upper surface of the arm member 14 in a state where the detection portion 25 is in contact with the passage 9, and the leaf spring 28 is attached. It is supposed to be pressed in. Further, even when the detection unit 25 faces the passage 9 in a non-contact state, the optical path blocking unit 26 is regulated to be in contact with the protection member 11 so that the detection unit 25 is constantly biased.

Whether the detection unit 25 is in non-contact with or in contact with the passage 9 and how much the contact pressure is set, in other words, the positional relationship of the actuator 22 with respect to the detection member 10 is determined by the passage of the detection member 10 in the passage. When moving 9 and abutting against the detection unit 25, it is possible to move smoothly, and the detection unit 25 can be sufficiently and appropriately responded to obtain the rotation amount of the actuator 22 that makes the operation of the transmissive photointerrupter 1 good. In addition, the thickness of the detected member 9 and the actuator 2
Ratio of the length from the rotary shaft 24 to the detector 25 and the length from the rotary shaft 24 to the optical path blocker 26,
Furthermore, it should be determined according to the angle and the like.

Next, the detection of the detected member 10 will be specifically described.

As shown in FIG. 1, the detected member 10 is provided along the passage 9.
Moves in the direction of arrow A, that is, to the right, and when its front end contacts the detection unit 25, the detection unit 25 responds and the actuator 22 causes the leaf spring 28 to move as shown by the chain line in the figure.
Counterclockwise from the original position, the optical path blocker 26 moves in the detection recess 5 accordingly, and is positioned in the optical path between the slits 6 from the position below the optical path between the slits 6. , It is cut off. On the other hand, when the rear end of the member to be detected 10 separates from the detection unit 25, the actuator 22 moves to the original position as shown by the solid line in the clockwise direction by the urging force of the leaf spring 28 as the detection unit 25 returns. The optical path blocking unit 26 returns to the original position and the optical path between the slits 6 is electrically connected. As a result, for example, the presence or absence of the member to be detected 10, the end position thereof, the position of the hole punched in the member to be detected 10, and the like are detected.

Here, the urging force of the leaf spring 28 ensures the responsiveness of the detecting portion 25, and the responsiveness at the time of return is quick, which is particularly effective when the housing 12 is installed vertically as described later. Is.

Further, the detection unit 25 is formed such that the contact angle with the detection target member 10 is an angle inclined in the traveling direction of the detection target member 10, that is, the direction of arrow A, and the detection unit 25 responds smoothly. It is supposed to be.

By reducing the width of the slit 6, it is possible to reduce the amount of response of the detection unit 22 or the amount of rotation of the actuator required to cut off and make the optical path of the slit 6 small. However, if the width dimension of the slit 6 is reduced, the photocurrent received by the light receiving portion 3 is reduced and the sensitivity is lowered. Therefore, the width dimension has its own limit. On the other hand, by making the length from the rotary shaft 24 of the actuator 22 to the optical path blocker 26 larger than the length from the rotary shaft 24 to the tip of the detector 25, By appropriately selecting the contact angle of the portion 25, the amount of rotation of the optical path blocker 26 can be increased even if the amount of response of the detector 25 is small, and as a result,
It is possible to improve the detection accuracy of the detected member 10 by the transmissive photo interrupter 1.

Reference numeral 41 is an adjusting tool, which includes a supporting member 42 and a pressing member 43.

The support member 42 is the mounting flange 1 of the holding member 13.
6 is formed in a shape corresponding to 6, and has an elongated hole-shaped screw hole 44 similar to the screw hole 19 of the installation flange 16,
The screws 17 are also screwed together and supported, and the screwing position can be adjusted along the long hole direction of the screw hole 44.

The pressing member 43 is arranged above the housing 12 from the arm member 14 to the holding member 13, and the central portion of the pressing member 43 is supported by a support piece 45 in which the mounting flange 42 is raised to form the pressing member 43. Has a tip end contacting an upper end of the actuator 22. A rear end of the pressing member 43 is screwed with an adjusting screw 46 constituting an adjusting means, and the tip of the screw is brought into contact with an upper part of the holding member 13. There is. When the adjustment screw 46 is tightened, the tip of the screw protrudes and pushes the upper portion of the holding member 13, and the upper end portion of the support piece 45 which is elastically deformable and acts as a fulcrum is elastically deformed. As a result, the pressing plate 43 rotates counterclockwise against the elastic force of the elastic deformation fulcrum portion 47,
The tip end of 3 presses the arm member 14, whereby the arm member 14 is elastically deformed in the counterclockwise direction with the base end thereof as a fulcrum.

On the contrary, when the adjusting screw 46 is loosened, the tip of the screw is retracted, and the pressing plate 43 is rotated in the returning direction by the elastic force of the elastic deformation fulcrum portion 47, whereby the arm member 14 is deformed by the elastic force. And then go back.

Therefore, the arm member 1 according to the adjustment of the adjustment screw 46.
By the elastic deformation of No. 4, the shaft hole 23 of the arm member 14 is moved toward and away from the detected member 10, and the corresponding position of the actuator 22 with respect to the detected member 10 can be adjusted.

In other words, the shaft hole 23 of the arm member 14 has the detected member 1
When approaching toward 0, the movement amount required to operate the transmissive photointerrupter 1 of the optical path blocking unit 26, that is, to block and conduct the optical path between the slits 6 is reduced, and therefore, the detected member is detected. When the axial hole 23 of the arm member 14 is separated from the detected member 10, the movement amount of the optical path blocking unit 26 required to operate the transmissive photointerrupter 1 can be coped with. Therefore, it is possible to cope with the case where the thickness of the detected member 10 is large.

Here, the length from the tip of the pressing plate 43 to the elastic deformation fulcrum portion 47 and the adjustment screw 46 from this elastic deformation fulcrum portion 47.
By appropriately setting the dimensional ratio to the length and the screw pitch of the adjusting screw 46, fine adjustment according to the rotation angle of the adjusting screw 46 is possible.

The adjusting screw 4 is moved by the elastic force of the elastic deformation fulcrum 47.
The rattling of the arm member 14 can be prevented, and the elastically deformed position of the arm member 14 can be stably held. Further, the adjustment tool 41 includes a support member 42, a pressing member 43, and an elastic deformation fulcrum portion 47 interposed therebetween. It is more integrally configured, and the material thereof is preferably a metal that is stronger than the material of the housing 12 because it is necessary to deform the arm member 14.

With the above configuration, the storage for storing the transmissive photointerrupter 1 that has the detection recess 5 between the light emitting unit 2 and the light receiving unit 3 facing each other in the separated state and operates in accordance with the interruption and conduction of the optical path formed in the detection recess 5 A holding member 1 that has a portion 15 and that can be installed at a predetermined position with respect to the detected member 10 and that can hold the transmissive photointerrupter 1 in the storage portion 15.
3 and a housing 12 composed of an arm member 14 projecting from the holding member 13, and a shaft hole 23 formed at a tip end of the arm member 14 so as to be pivotally supported in a detachable manner and correspond to the detected member 10. An actuator 22 having a detecting portion 25 and a light path blocking portion 26 that enters the storage portion 15 and enters the detection concave portion 5, and a spring member 28 that is supported by the housing 12 and biases the actuator 22 toward the original position. The actuator 22 rotates from the original position against the urging force of the spring member 28 as the detection unit 25 contacts and reacts with the detection target member 10, and the optical path blocking unit 26 moves in the detection recess 5 inside. Is moved to block the optical path and conduct the light to detect the detected member 10.
When detecting the detected member 10 using the actuator 22 by the transmissive photo interrupter 1, simply by installing the holding portion 13 of the housing 12 at a predetermined position with respect to the detected member 10, Actuator 2
2, spring member 28 and transmissive photo interrupter 1
Can be held in proper positional relations with respect to the member to be detected 10, a simple mounting operation is sufficient, and high positional accuracy can be obtained. Furthermore, various different actuators can be prepared and replaced by simply replacing them. Even if the shape of 10 is different, or the detection mode is different due to a different moving direction of the detected member 10 as shown in a modified example to be described later, it can be easily and promptly dealt with. The support member 42 supported by the member 13, the pressing member 43, and the pressing member 4 at the central portion of the pressing member 43.
3 and a support member 42, and an elastically deformable fulcrum portion 47 which is elastically deformable and acts as a fulcrum to rotate the pressing member. The pressing member 43 is rotated against the elastic force of the deformation fulcrum portion 47, and the tip end portion of the pressing member 43 is moved to the arm member 14.
Is provided to the rear end portion of the pressing member 43 so as to elastically deform the arm member 14 by changing the amount of rotation of the arm member 14 by elastically deforming the arm member 14 according to the adjustment of the adjusting screw 46. The shaft hole 23 to the detected member 1
Due to the configuration in which the actuators 22 corresponding to the detected member 10 are adjusted to be close to and separated from each other toward 0, the position of the actuator 22 relative to the detected member 10 can be adjusted after the holding member 13 of the housing 12 is installed. Can be fine-tuned easily, quickly, and with high precision.

The case where the detected member 10 moves to the right in the passage 9 has been described above. However, as shown in FIG. 3, the holding member 13 of the housing 12 is maintained as it is without changing its installation position. At the same time, a modification in which the detected member 10 can be detected when it is moved leftward in the direction of arrow B by replacing the actuator with another one will be described.

The actuator 51 has a contact angle of the detection unit 52 with respect to the detected member 10 that is inclined toward the traveling side of the detected member 10, and an engaging portion 53 is formed on the upper portion of the actuator 51. The tip of the leaf spring 28 is locked to the leaf spring 28. In this locked state, the leaf spring 28
Applies a counterclockwise biasing force to the actuator 51.

When the front end of the member to be detected 10 comes into contact with the detecting portion 52, the actuator 51 rotates in the clockwise direction against the biasing force of the leaf spring 28 as the detecting portion 52 responds, as indicated by the chain line. As a result, the optical path blocking portion 55 moves in the rotary recess 5 and is located in the optical path between the slits 6 from a position above the optical path between the slits 6 and is blocked. On the other hand, the detected member 1
When the rear end portion of 0 moves away from the detection unit 52, as shown by the solid line, the actuator 5 moves along with the return response to the detection unit 52.
1 is rotated counterclockwise by the urging force of the leaf spring 28 and returns, the optical path blocking portion 23 returns to the original position, and the optical path is electrically connected.

Further, as shown in another modified example of FIG. 4, an actuator 56 capable of coping with movement in both directions is also possible. In this case, a notch groove 57 is formed in the upper part of the actuator 56, and The tip of the leaf spring 28 is locked.
In this locked state, the leaf spring 28 forces the actuator 57 to return to the original position in response to the rotational direction of the actuator 57, that is, in both the clockwise and counterclockwise directions with respect to the actuator 57. It is designed to give a bias. When the detected member 10 does not exist in the passage 9, as indicated by the solid line, the detected member 1 of the detection unit 59 is detected.
The contact angle with respect to 0 becomes a right angle, the optical path blocking unit 60 is positioned so as to block the optical path between the slits 6, and the detected member 10 moves in the direction of arrow A, that is, to the right, and hits the detection unit 59. In the case of contact, the actuator 57 rotates counterclockwise as shown by the chain line, and the optical path blocking unit 60
It is located above the optical path between the slits 6 and makes the optical path conductive,
On the contrary, when the member to be detected 10 moves in the direction of the arrow B, that is, to the left and comes into contact with the detecting portion 59, the actuator 57 rotates in the clockwise direction as shown by the chain line and the optical path. The blocking unit 60 is located below the optical path between the slits 6 and similarly connects the optical paths.

Further, while the detected member 10 moves horizontally, the holding member 13 of the housing 12 can be installed vertically, and the detected member 10 moves to the right in the direction of arrow A. FIG. 5 shows a modified example thereof, and FIG. 6 shows a modified example in which the detected member 10 moves to the left in the direction of arrow B.

In FIG. 5, the housing 12 shown in FIG.
It is installed in a rotated manner.

In FIG. 6, the housing 12 shown in FIG. 1 is mounted in a state rotated by 90 degrees, and the detection portion 62 of the actuator 61 is formed at a symmetrical position with respect to the detection portion 52 of the actuator 51 shown in FIG. The contact angle of the detection portion 62 with respect to the detected member 10 is
The angle is set so that the detected member 10 is inclined toward the traveling side.

In FIGS. 5 and 6, 63 is a vertical member for mounting the holding member 13 of the housing 12 via the pedestal 64.

It should be noted that the adjustment tool 41 is omitted in FIGS. 3 to 6 above, and in each modified example, the description of the configuration and effects similar to those of the embodiment is omitted.

The present invention has been described above with reference to the embodiments and the respective modifications.
The present invention is not limited to the above-described embodiment and each modified example, but can be variously modified without changing the gist thereof.

For example, in the above-described embodiment and each modification, the case where the detected member 10 moving in the passage 9 is detected has been described.
The present invention is not limited to this, and of course, it can be applied to the case of detecting the detection target members stacked in the stacker.

[Advantages of the Invention] As described above, according to the transmissive photointerrupter adapter of the present invention, the detection recess is formed between the light emitting unit and the light receiving unit facing each other in the separated state. It has a storage unit for storing a transmissive photointerrupter that operates in accordance with the interruption and conduction of the optical path, and can be installed at a predetermined position with respect to the member to be detected, and the transmissive photointerrupter can be held in the storage unit. The housing is composed of a holding member and an arm member protruding from the holding member, and is rotatably supported by a rotation supporting portion formed at the tip of the arm member in a detachable manner, and corresponds to the detected member. An actuator having a detection part and an optical path blocking part that enters the storage part and enters the detection recess, and the actuator is supported by the housing and the actuator is in the original position. An urging member for urging the urging member toward the position, and the actuator rotates from the original position against the urging force of the urging member as the detecting portion contacts and responsive to the detected member. Along with the configuration in which the optical path blocker moves in the detection recess to block the optical path and conduct the detection to detect the member to be detected, a transmission type photointerrupter is used to detect the object to be detected. When detecting a member, the actuator, biasing member and transmissive photointerrupter can be properly adjusted to the detected member by simply installing the housing holding part at a predetermined position relative to the detected member. Can be held in various positional relationships, simple installation work is sufficient, high positional accuracy is obtained, and various different actuators are prepared and simply replaced.
Even when the shape of the member to be detected is different, or the detection mode is different due to the different moving direction of the detected member, it is possible to easily and swiftly cope with such various effects.

Further, a supporting member supported by the holding member, a pressing member, and a pressing member which is formed between the pressing member and the supporting member at a central portion of the pressing member and has a fulcrum function capable of elastic deformation. An adjusting tool that is integrally formed with an elastic deformation fulcrum portion that allows rotation is provided, and the pressing member is rotated against the elastic force of the elastic deformation fulcrum portion so that the tip end portion of the pressing member is Adjusting means for pressing the arm member to elastically deform the arm member and varying the amount of rotation of the pressing member is provided at the rear end portion of the pressing member, and the elasticity of the arm member according to the adjustment of the adjusting means. After the installation of the holding member of the housing, the rotation support portion is moved toward and away from the member to be detected by deformation and the corresponding position of the actuator with respect to the member to be detected is adjusted. Adjusting the position of the actuator relative to the detection member can be finely adjusted easily and quickly, and accurately.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an essential part showing an embodiment of a transmissive photointerrupter adapter according to the present invention, FIG. 2 is an exploded perspective view thereof, and FIGS. 3 to 6 show respective modifications thereof. FIG. 7 is a longitudinal sectional view of a main part, FIG. 7 is a perspective view showing a general transmissive photointerrupter, and FIG. 8 is a vertical sectional view showing a state in which a transmissive photointerrupter is operated by using a conventional actuator. 1 ... Transmission type photointerrupter 2 ... Light emitting part, 3 ... Light receiving part 4 ... Detection concave part, 5 ... Slit 10 ... Detected member, 12 ... Housing 13 ... Holding member, 14 ... Arm Member 15 ... Storage part, 16 ... Mounting flange 22, 51, 56, 61 ... Actuator 23 ... Shaft hole, 24 ... Rotating shaft part 25, 52, 59, 62 ... Detection part 26, 55, 60 ... Optical path blocker 28. Leaf spring 41 ... Adjuster, 42 ... Support member 43 ... Pressing member, 46 ... Adjustment screw 47 ... Elastic deformation fulcrum part

Claims (2)

[Scope of utility model registration request] 1. A storage unit having a detection recess between a light emitting unit and a light receiving unit facing each other in a separated state, and storing a transmissive photointerrupter which operates in accordance with interruption or conduction of an optical path formed in the detection recess. Also, a housing that includes a holding member that can be installed at a predetermined position with respect to the member to be detected and that can hold the transmissive photointerrupter in the storage section, and an arm member that projects from the holding member; The rotation support portion formed at the tip portion is rotatably supported by a rotation support portion, and includes a detection portion corresponding to the detected member and an optical path blocking portion that has entered the storage portion and entered the detection recess. And a biasing member that is supported by the housing and biases the actuator toward the original position, and the detection unit contacts the detected member and responds to the detected member. Together with the actuator with pivots from the original position against the urging force of the urging member, blocking the light path the optical path blocking unit moves the detection recess,
An adapter for a transmissive photo interrupter, which is electrically connected to detect the member to be detected. 2. A support member supported by the holding member, a pressing member, and a fulcrum function that is formed between the pressing member and the supporting member at the center of the pressing member and is elastically deformable. An adjusting tool that is configured integrally with an elastic deformation fulcrum portion that allows the pressing member to rotate is provided, and the pressing member is rotated against the elastic force of the elastic deformation fulcrum portion, and the tip of the pressing member is provided. The arm member according to the adjustment of the adjusting means, the adjusting means is provided at the rear end portion of the pressing member, the adjusting means changing the amount of rotation of the pressing member while elastically deforming the arm member by elastically deforming the arm member. The transmissive photointerrupter according to claim 1, wherein the rotation support portion is moved toward and away from the detected member by elastic deformation of the member, and a corresponding position of the actuator with respect to the detected member is adjusted. Adapter.