JP2015170467A - Push button device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a push button device of elevator ensuring excellent impact resistance in a simple configuration, less susceptible to aging, and capable of suppressing occurrence of incorrect operation.SOLUTION: A push button device of elevator includes a plurality of buttons provided on an operation panel 10 of elevator, and displaceable between a normal position and an operation position by the operation of a user, a sensor 30 creating an optical axis 31 by emitting light, and outputting a detection signal depending on the blocked state of the optical axis 31 by the button, and a determination unit 40 for determining a button at the operation position, out of the plurality of buttons, based on a detection signal from the sensor 30. Each of the plurality of buttons has a through hole in which the optical axis 31 is arranged at the normal position. At the operation position, the optical axis 31 is not arranged in the through hole, and the optical axis 31 is blocked.

Description

  The present invention relates to a push button device for an elevator.

  In a conventional elevator push button device, a disk switch is disposed on a base, and a pressing member disposed at a position facing the disk switch is provided so as to be able to approach and separate from the disk switch. There is known one in which an end portion of a pressing member is fitted into an opening of a bottom-cylindrical rubber, and a spring is provided to urge the pressing member toward the non-disc switch side (for example, see Patent Document 1).

  In addition, the distance between a plurality of push buttons provided on the elevator operation panel for performing destination floor registration by being operated, and an object such as a user's hand approaching the operation panel and each of the plurality of push buttons And a control means for registering the destination floor based on the distance between the object and the push button detected by the distance measurement means even if the object does not touch the push button. Is also known in the past (see, for example, Patent Document 2).

JP-A-11-314861 JP 2011-162307 A

  However, in the conventional push button device for an elevator shown in Patent Document 1, since the operation of the push button by the user is detected by a mechanical mechanism, the push button device is easily damaged by an impact on the push button and used for a long time. It is easy to deteriorate by. In particular, when rubber is used for the movable part of the push button, the influence of aging deterioration becomes large.

  In the elevator operation panel shown in Patent Document 2, the operation of the push button can be detected without the user touching the push button. However, since the user does not directly touch the push button intended for the operation, it is difficult for the user to know the operation detection state, and there is a possibility that an erroneous operation and an erroneous detection of the operation may occur. In addition, if an attempt is made to detect a non-contact operation while suppressing erroneous operations and detection errors, the necessity for advanced and complicated detection processing and the like will occur, and the configuration of the apparatus will become complicated.

  The present invention has been made to solve such a problem, has a simple configuration, has good impact resistance, is not easily affected by deterioration over time, and is capable of detecting erroneous operation and erroneous operation. The present invention provides an elevator push button device that can suppress generation.

  In the elevator pushbutton device according to the present invention, a plurality of buttons provided on the operation panel of the elevator and displaceable between a normal position and an operation position by a user's operation, and an optical axis by emitting light. A sensor that generates and outputs a detection signal corresponding to the optical axis blocking state by the button, and a determination that determines the button at the operation position among the plurality of buttons based on the detection signal from the sensor Each of the plurality of buttons is formed with a through hole in which the optical axis is disposed in the normal position, and the optical axis is in the through hole of the button in the operation position. It is set as the structure which interrupts | blocks and the said optical axis is interrupted.

  The elevator pushbutton device according to the present invention has a simple structure, good impact resistance, is hardly affected by aging deterioration, and can suppress the occurrence of erroneous operations and erroneous detection of operations. There is an effect.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining a functional structure while showing typically a mode that the pushbutton apparatus of the elevator which concerns on Embodiment 1 of this invention was seen from the front. It is a longitudinal cross-sectional view of the pushbutton part of the pushbutton apparatus of the elevator which concerns on Embodiment 1 of this invention. It is a cross-sectional view which shows the state which the pushbutton with which the pushbutton apparatus of the elevator which concerns on Embodiment 1 of this invention is provided is in a normal position. It is a cross-sectional view which shows the state which has the pushbutton with which the pushbutton apparatus of the elevator which concerns on Embodiment 1 of this invention is provided in an operation position. It is a figure which shows typically a mode that the pushbutton apparatus of the elevator which concerns on Embodiment 2 of this invention was seen from the front. It is a figure which shows typically a mode that the pushbutton apparatus of the elevator which concerns on Embodiment 3 of this invention was seen from the front.

  The present invention will be described with reference to the accompanying drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts, and redundant description thereof will be simplified or omitted as appropriate.

Embodiment 1 FIG.
1 to 4 relate to Embodiment 1 of the present invention, and FIG. 1 schematically shows a state in which a push button device of an elevator is viewed from the front, and illustrates a functional configuration, FIG. Is a longitudinal sectional view of the push button portion of the push button device of the elevator, FIG. 3 is a cross sectional view showing a state where the push button included in the push button device of the elevator is in the normal position, and FIG. 4 is a state where the push button is in the operation position. FIG.

  In FIG. 1, the operation panel 10 is provided, for example, in an elevator hall or a car. Here, description will be made assuming that the operation panel 10 is an in-car operation panel provided in an elevator car. The operation panel 10 includes a plurality of push buttons 20. Here, it is assumed that the plurality of push buttons 20 are destination floor buttons provided corresponding to the respective destination floors of the elevator. In addition, here, each push button 20 has a square shape when viewed from the front.

  Furthermore, it is assumed here that three push buttons 20 are provided on the operation panel 10. That is, the push buttons 20 are the first button 20a, the second button 20b, and the third button 20c. Note that the number of the plurality of push buttons 20 is not limited to three and may be two or more.

  Hereinafter, the first button 20a, the second button 20b, and the third button 20c are collectively or representatively referred to as a push button 20 (note that this is because the button recess 11, the push button shaft 21, the through hole 22 described later). The same applies to the notch 26, the optical axis 31, and the like).

  A button recess 11 is formed on the front surface of the operation panel 10. Each push button 20 is provided inside the button recess 11. Specifically, here, the first button 20a is provided inside the first button recess 11a. The second button 20b is provided inside the second button recess 11b. The third button 20c is provided inside the third button recess 11c.

  Each push button 20 is provided in each button recess 11 so as to be displaceable between a normal position and an operation position by a user operation. The configuration of the push button 20 will be described with reference to FIGS. 2 to 4 in addition to FIG. Each push button 20 includes a push button shaft 21.

  Each push button 20 is rotatably attached to the operation panel 10 via the push button shaft 21. That is, the first button 20a is attached to the operation panel 10 via the first button shaft 21a. The second button 20b is attached to the operation panel 10 via the second button shaft 21b. The third button 20c is attached to the operation panel 10 via the third button shaft 21c.

  Here, the push button shaft 21 is arranged along the vertical direction in the longitudinal direction. The push button shaft 21 is disposed at the center in the left-right direction of the operation surface (front surface) of the push button 20. Therefore, each push button 20 can rotate left and right with respect to the operation panel 10 about the push button shaft 21.

  Each of the push buttons 20 rotates with respect to the operation panel 10 about the push button shaft 21 that is a rotation axis, so that the angle formed by the front surface of the operation panel 10 and the operation surface of the push button 20 can be changed. . As shown in FIG. 3, the position where the front surface of the operation panel 10 and the operation surface of the push button 20 are arranged in parallel is the normal position described above. Further, as shown in FIG. 4, the operation position is a position where the angle formed between the front surface of the operation panel 10 and the operation surface of the push button 20 is not less than a predetermined angle other than 0 degrees.

  When the user does not touch the push button 20, the push button 20 is in the normal position shown in FIG. When the user presses the operation surface of the push button 20, the push button 20 is either left or right around the push button shaft 21 depending on whether the pressed position is the left side or the right side of the push button shaft 21. Rotate. The rotated push button 20 is displaced to the operation position shown in FIG.

  Here, as shown in FIG. 2, springs 23 are provided above and below each push button shaft 21. The spring 23 gives a restoring force to the push button 20 so as to return the push button 20 to the normal position. For this reason, when the user's finger is released from the push button 20 operated by the user and displaced to the operation position, the push button 20 returns to the normal position by the action of the spring 23.

  Returning to FIG. 1 again, the description will be continued. As shown in FIG. 1, the operation panel 10 is provided with a sensor 30. The sensor 30 emits light and generates an optical axis 31. Here, the optical axis 31 is disposed along the vertical direction.

  A through hole 22 is formed in each of the plurality of push buttons 20. That is, the first button through hole 22a is formed in the first button 20a. A second button through hole 22b is formed in the second button 20b. A third button through hole 22c is formed in the third button 20c. Each through-hole 22 is also arranged along the up-down direction. Therefore, the push button shaft 21, the through hole 22, and the optical axis 31 are all arranged in parallel.

  When the push button 20 is in the normal position, the arrangement of the through hole 22 and the optical axis 31 is adjusted so that the optical axis 31 of the sensor 30 is arranged inside the through hole 22. That is, when the push button 20 is in the normal position, the optical axis 31 passes through the through hole 22, and thus the optical axis 31 is not blocked (FIG. 3). The optical axis 31 is arranged on one side of the left and right when viewed from the push button shaft 21. Therefore, each through hole 22 of each push button 20 is also arranged on one side of the left and right sides as viewed from the push button shaft 21, that is, on the same side as the optical axis 31.

  On the other hand, when the push button 20 is in the operation position, the position of the through hole 22 changes with the displacement of the push button 20, so that the optical axis 31 of the sensor 30 is not disposed inside the through hole 22 of the push button 20. . That is, the optical axis 31 is removed from the through hole 22, and the optical axis 31 is blocked by the push button 20 (FIG. 4).

  Thus, the blocking state of the optical axis 31 of the sensor 30 changes depending on whether each push button 20 is in the normal position or the operation position. The sensor 30 outputs a detection signal corresponding to the blocking state of the optical axis 31 by the push button 20 that changes in this way.

  Here, the sensor 30 is a distance sensor that outputs a detection signal according to the distance from the sensor 30 to the position where the optical axis 31 is blocked. One optical axis of the sensor 30 is disposed so as to pass through the through holes 22 of a plurality of push buttons 20 (here, all of the first button 20a, the second button 20b, and the third button 20c) at the normal position. Has been. The position where the optical axis 31 is blocked differs depending on which of the first button 20a, the second button 20b, and the third button 20c is in the operating position. That is, the distance from the sensor 30 to the blocking portion of the optical axis 31 varies depending on which push button 20 is in the operation position. Therefore, a different detection signal is output from the sensor 30 depending on which push button 20 is in the operation position.

  The detection signal output from the sensor 30 is input to the determination unit 40. Based on the detection signal from the sensor 30, the determination unit 40 determines the push button 20 at the operation position among the plurality of push buttons 20. Here, as described above, the sensor 30 is a distance sensor, and the detection signal that is output reflects the distance from the sensor 30 to the blocking location of the optical axis 31.

  Therefore, for example, the determination unit 40 prepares in advance the distance from the sensor 30 to each push button 20 as data, and matches the content of the detection signal from the sensor 30 with the distance data to each push button 20. Thus, it can be determined which push button 20 is in the operating position and is blocking the optical axis 31.

  The determination unit 40 outputs an operation signal for the push button 20 determined to be in the operation position based on the detection signal from the sensor 30. The operation signal output from the determination unit 40 is input to the elevator control device 50. The elevator control device 50 controls the overall operation of the elevator. The elevator control device 50 registers a call according to an operation signal from the determination unit 40. When the call is registered, the elevator control device 50 controls the operation of the elevator so as to respond to the registered call.

  As shown in FIGS. 3 and 4, each push button 20 includes a thin portion 24 and a thick portion 25. The thick part 25 is formed thicker in the direction perpendicular to the operation surface than the thin part 24. Here, the thin portion 24 is formed in the central portion of the push button 20 in the left-right direction. On the other hand, the thick portion 25 is formed on both sides of the push button 20 in the left-right direction.

  The thin portion 24 is provided with a push button shaft 21, which is a rotation shaft, in parallel with the operation surface of the push button 20. A through hole 22 is formed in the thick portion 25. The push button shaft 21 is arranged at the center in the left-right direction of the push button 20, and the thick portion 25 is formed on both sides of the push button 20 in the left-right direction, so that the push button 20 rotates around the push button shaft 21. When this is done, the thick portion 25 comes into contact with the button recess 11.

  In this manner, the maximum angle between the front surface of the operation panel 10 and the operation surface of the push button 20 that is allowed as the operation position of the push button 20 can be defined. In addition, by arranging the through hole 22 in the thick portion 25, the optical axis 31 can be reliably blocked when the push button 20 is in the operation position. That is, it is possible to reliably prevent a situation where the push button 20 rotates excessively and the optical axis 31 once blocked by the push button 20 is not blocked again.

  Here, the push button shaft 21 is provided at the center of the push button 20, but the position of the push button shaft 21 is not limited thereto. In addition, for example, the push button shaft 21 may be provided at one end of the push button 20 in the left-right direction or the up-down direction. In this case, the thick portion 25 is preferably formed at the end opposite to the end provided with the push button shaft 21.

  In addition, here, the push button 20 has a square shape when viewed from the front, but the shape of the push button 20 is not limited thereto. In addition, for example, the push button 20 can be circular or triangular in front view. It is assumed that the push button 20 has a triangular shape, particularly when applied to an upward or downward call registration button provided at a landing.

  Further, here, the push button 20 is configured to be displaced between the normal position and the operation position by rotating the operation surface of the push button 20 with respect to the front surface of the operation panel 10. However, the present invention is not limited to this. For example, the operation surface of the push button 20 is kept parallel to the front surface of the operation panel 10 like a general push button, and the operation surface of the push button 20 is maintained on the operation panel. The push button 20 may be displaced between the normal position and the operation position by moving to the back side from the front surface of FIG.

  The elevator pushbutton device configured as described above is provided on the elevator operation panel 10 and emits light with a plurality of pushbuttons 20 that can be displaced between a normal position and an operation position by a user operation. The optical axis 31 is generated and a sensor 30 that outputs a detection signal corresponding to the blocking state of the optical axis 31 by the push button 20 and the operation among the plurality of push buttons 20 based on the detection signal from the sensor 30. And a determination unit 40 that determines the push button 20 at the position. Each of the plurality of push buttons 20 is formed with a through hole 22 in which the optical axis 31 is disposed in the normal position, and the optical axis 31 is formed in the through hole 22 of the push button 20 in the operation position. The front shaft 0 is cut off without being arranged.

  For this reason, the push button 20 should just be a structure which can be displaced between a normal position and an operation position, and can make the structure of a movable part simple. Further, by detecting the displacement of the push button 20 through the blocking state of the optical axis 31, a mechanical mechanism for detecting an operation on the push button 20 can be made unnecessary. And by such a characteristic, impact resistance is favorable and it is hard to receive the influence of aged deterioration. Further, since the user operates the push button 20 by directly touching the push button 20 and physically moving the push button 20, erroneous operation and erroneous detection of operation are unlikely to occur.

Embodiment 2. FIG.
FIG. 5 relates to Embodiment 2 of the present invention and is a diagram schematically showing a state in which the push button device of the elevator is viewed from the front.
In the second embodiment described here, in the configuration of the first embodiment described above, a plurality of optical axes of the sensor are arranged so that different optical axes are blocked depending on which push button is at the operation position. It is a thing.

  That is, as shown in FIG. 5, the sensor includes three light emitting units, a first light emitting unit 301a, a second light emitting unit 301b, and a third light emitting unit 301c. These light emitting units are arranged above the push button 20 in the operation panel 10. In addition, the sensor includes three light receiving units corresponding to these three light emitting units: a first light receiving unit 302a, a second light receiving unit 302b, and a third light receiving unit 302c. These light receiving parts are arranged below the push button 20 in the operation panel 10.

  The first light emitting unit 301a and the first light receiving unit 302a are disposed to face each other. The second light emitting unit 301b and the second light receiving unit 302b are disposed to face each other. In addition, the third light emitting unit 301c and the third light receiving unit 302c are disposed to face each other.

  And the 1st optical axis 31a which the light inject | emitted from the 1st light emission part 301a goes to the 1st light-receiving part 302a is formed. Similarly, a second optical axis 31b is formed in which light emitted from the second light emitting unit 301b is directed to the second light receiving unit 302b. And the 3rd optical axis 31c which the light inject | emitted from the 3rd light emission part 301c goes to the 3rd light-receiving part 302c is formed.

  In this way, a plurality (here, three) of the first optical axis 31a, the second optical axis 31b, and the third optical axis 31c are arranged along the vertical direction. The first optical axis 31a, the second optical axis 31b, and the third optical axis 31c are arranged in parallel so as not to cross each other. In addition, here, the first optical axis 31a and the second optical axis 31b are arranged on the left and right sides as viewed from the push button axis. And the 3rd optical axis 31c is arrange | positioned at the left-right other side seeing from the pushbutton axis | shaft.

  A through hole 22 is formed in each of the plurality of push buttons 20. That is, the first button through hole 22a is formed in the first button 20a. A second button through hole 22b is formed in the second button 20b. A third button through hole 22c is formed in the third button 20c.

  At this time, the first button through hole 22a is provided so that the first optical axis 31a passes through the inside of the first button through hole 22a when the first button 20a is in the normal position. And when the 1st button 20a exists in an operation position, the 1st optical axis 31a remove | deviates from the 1st button through-hole 22a, and the 1st optical axis 31a is interrupted | blocked by the 1st button 20a.

  Further, the first button 20a is provided with two first button notches 26a. The first button cutouts 26a are provided corresponding to the second optical axis 31b and the third optical axis 31c, respectively. The first button cutout portion 26a is the same as the first button through hole 22a in that it is provided over the first button 20a in the vertical direction. However, regardless of whether the first button 20a is in the normal position or the operation position, the second optical axis 31b and the third optical axis 31c pass through the corresponding first button cutouts 26a. Therefore, it is different from the first button through hole 22a in that it is not blocked. That is, the first button cutout portion 26a is formed by cutting out larger than the first button through hole 22a.

  Since it is configured as described above, when the first button 20a is in the normal position, all of the first optical axis 31a, the second optical axis 31b, and the third optical axis 31c are blocked by the first button 20a. Not. When the first button 20a is in the operating position, only the first optical axis 31a is blocked by the first button 20a, and both the second optical axis 31b and the third optical axis 31c are dependent on the first button 20a. Not blocked.

  Similarly, the second button through hole 22b is provided so that the second optical axis 31b passes through the inside of the second button through hole 22b when the second button 20b is in the normal position. And when the 2nd button 20b exists in an operation position, the 2nd optical axis 31b remove | deviates from the 2nd button through-hole 22b, and the 2nd optical axis 31b is interrupted | blocked by the 2nd button 20b.

  Similarly to the first button 20a, the second button 20b is also provided with two second button notches 26b. These second button notches 26b are provided corresponding to the first optical axis 31a and the third optical axis 31c, respectively. The first optical axis 31a and the third optical axis 31c pass through the corresponding second button cutouts 26b regardless of whether the second button 20b is in the normal position or the operation position. And will not be blocked.

  Since it is configured as described above, when the second button 20b is in the normal position, all of the first optical axis 31a, the second optical axis 31b, and the third optical axis 31c are blocked by the second button 20b. Not. When the second button 20b is in the operating position, only the second optical axis 31b is blocked by the second button 20b, and both the first optical axis 31a and the third optical axis 31c are dependent on the second button 20b. Not blocked.

  Similarly, the third button through hole 22c is provided so that the third optical axis 31c passes through the inside of the third button through hole 22c when the third button 20c is in the normal position. And when the 3rd button 20c exists in an operation position, the 3rd optical axis 31c remove | deviates from the 3rd button through-hole 22c, and the 3rd optical axis 31c is interrupted | blocked by the 3rd button 20c.

  Similarly to the first button 20a and the second button 20b, the third button 20c is also provided with two third button notches 26c. These third button cutouts 26c are provided corresponding to the first optical axis 31a and the second optical axis 31b, respectively. The first optical axis 31a and the second optical axis 31b pass through the corresponding third button cutouts 26c regardless of whether the third button 20c is in the normal position or the operating position. And will not be blocked.

  Since it is configured as described above, when the third button 20c is in the normal position, all of the first optical axis 31a, the second optical axis 31b, and the third optical axis 31c are blocked by the third button 20c. Not. When the third button 20c is in the operating position, only the third optical axis 31c is blocked by the third button 20c, and both the first optical axis 31a and the second optical axis 31b are dependent on the third button 20c. Not blocked.

  The sensor outputs a detection signal corresponding to the blocking state of the optical axis 31 by the push button 20. More specifically, the sensor according to the second embodiment depends on which of the plurality of optical axes 31 (first optical axis 31a, second optical axis 31b, and third optical axis 31c) is blocked. A detection signal is output. That is, a detection signal is output from the sensor according to the light receiving state in each of the first light receiving unit 302a, the second light receiving unit 302b, and the third light receiving unit 302c.

  Specifically, first, when all of the first button 20a, the second button 20b, and the third button 20c are in the normal position, all of the first optical axis 31a, the second optical axis 31b, and the third optical axis 31c are used. Not blocked. At this time, all of the first light receiving unit 302a, the second light receiving unit 302b, and the third light receiving unit 302c receive light.

  When the user operates the first button 20a, the first button 20a is displaced to the operation position. Then, the first optical axis 31a is cut off, and the first light receiving unit 302a does not receive light. Since the second optical axis 31b and the third optical axis 31c are not blocked, the light receiving states of the second light receiving unit 302b and the third light receiving unit 302c do not change. In this case, the sensor outputs a detection signal indicating that the first light receiving unit 302a does not receive light (the first optical axis 31a is blocked).

  Next, when the user operates the second button 20b, the second button 20b is displaced to the operation position. Then, the second optical axis 31b is blocked and the second light receiving unit 302b does not receive light. Since the first optical axis 31a and the third optical axis 31c are not blocked, the light receiving states of the first light receiving unit 302a and the third light receiving unit 302c do not change. In this case, the sensor outputs a detection signal indicating that the second light receiving unit 302b has stopped receiving light (the second optical axis 31b has been blocked).

  Further, when the user operates the third button 20c, the third button 20c is displaced to the operation position. Then, the third optical axis 31c is blocked, and the third light receiving unit 302c does not receive light. Since the first optical axis 31a and the second optical axis 31b are not blocked, the light receiving states of the first light receiving unit 302a and the second light receiving unit 302b do not change. In this case, the sensor outputs a detection signal indicating that the third light receiving unit 302c does not receive light (the third optical axis 31c is cut off).

  As described above, the blocking state of the plurality of optical axes 31 of the sensor, that is, the light receiving state of the plurality of light receiving units, changes depending on whether each push button 20 is in the normal position or the operation position. The sensor outputs a detection signal according to the blocking state of the plurality of optical axes 31 by the push button 20 that changes in this way.

  The detection signal output from the sensor is input to the determination unit. Although the determination unit 40 is illustrated in FIG. 1 of the first embodiment, the determination unit is not illustrated in FIG. 5 (the same applies to the elevator control device (50)). The determination unit determines the push button 20 at the operation position among the plurality of push buttons 20 based on the detection signal from the sensor.

Here, as described above, there is a one-to-one relationship between the push button 20 at the operation position and the optical axis 31 that is blocked, that is, the light receiving unit that stops receiving light. Therefore, for example, the determination unit prepares a correspondence relationship between the push button 20 at the operation position and the optical axis 31 to be blocked in advance, so that which push button 20 is operated based on the detection signal from the sensor. It can be determined whether it is in a position.
Other configurations and operations are the same as those in the first embodiment, and a detailed description thereof will be omitted.

  Here, the same number of optical axes 31 as the number of push buttons 20 provided on the operation panel 10 are used. However, by using a combination of a plurality of optical axes 31 so that a plurality of optical axes 31 are simultaneously blocked when one push button 20 is in the operation position, each operation of a certain number of push buttons 20 is performed. The number of optical axes 31 necessary for determining the state can be made smaller than the number of push buttons 20.

  For example, when there are three push buttons 20 described above, the first optical axis 31a is blocked when the first button 20a is in the operating position, and the second optical axis when the second button 20b is in the operating position. The process is the same as described above until 31b is blocked. When the third button 20c is in the operating position, the two optical axes 31 of the first optical axis 31a and the second optical axis 31b are blocked simultaneously.

  By assuming that a plurality of push buttons 20 are not operated at the same time, when there are three push buttons 20, which push button 20 out of these push buttons 20 by two optical axes 31 is selected. It is possible to determine whether it is being operated. However, according to the premise, when a plurality of push buttons 20 are operated at the same time, it cannot be correctly determined.

  For example, when there are three optical axes 31, only the first optical axis 31a, only the second optical axis 31b, only the third optical axis 31c, the first optical axis 31a, the second optical axis 31b, and the first light A total of seven combinations of the axis 31a and the third optical axis 31c, the second optical axis 31b and the third optical axis 31c, and the first optical axis 31a to the third optical axis 31c are conceivable. Therefore, in this case, it is possible to discriminate operations for a maximum of seven push buttons 20 (provided that each is operated independently).

  The elevator pushbutton device configured as described above uses a sensor that can detect only whether or not the optical axis is cut off without using a relatively expensive distance sensor. For this reason, in addition to being able to produce the same effects as those of the first embodiment, the manufacturing cost of the elevator push button device can be further reduced.

Embodiment 3 FIG.
FIG. 6 relates to Embodiment 2 of the present invention and is a diagram schematically showing a state in which the push button device of the elevator is viewed from the front.
In the second embodiment described above, the same number of sets of light emitting units and light receiving units as the optical axes are used to set a plurality of optical axes. In Embodiment 3 described here, a plurality of optical axes can be set by dividing and guiding light from a light emitting unit using an optical fiber.

  That is, as shown in FIG. 6, the sensor includes one light emitting unit 301. The light emitting unit 301 is provided on the operation panel 10. The light emitting unit 301 emits light downward. Below the light emitting unit 301, one end of three optical fibers, the first optical fiber 60a, the second optical fiber 60b, and the third optical fiber 60c is disposed.

  The first optical fiber 60a is smoothly bent by 90 degrees on the side of the first button 20a, and the other end of the first optical fiber 60a is directed from the left and right sides of the first button 20a toward the first button 20a. Arranged. A first light receiving portion 302a is provided on the other side of the left and right sides of the first button 20a. The first light receiving unit 302a is arranged to face the other end of the first optical fiber 60a.

  The light emitted from the light emitting unit 301 enters one end of the first optical fiber 60a. The incident light is guided to the first optical fiber 60a and is emitted again from the other end of the first optical fiber 60a. The light emitted from the other end of the first optical fiber 60a becomes the first optical axis 31a that crosses the first button 20a and travels toward the first light receiving unit 302a.

  In the same manner, the second optical fiber 60b is smoothly bent by 90 degrees on the side of the second button 20b, and the other end of the second optical fiber 60b is second from the left and right sides of the second button 20b. It is arranged toward the button 20b side. A second light receiving unit 302b is provided on the other side of the left and right sides of the second button 20b. The second light receiving unit 302b is disposed to face the other end of the second optical fiber 60b.

  The light emitted from the light emitting unit 301 enters one end of the second optical fiber 60b. The incident light is guided to the second optical fiber 60b and is emitted again from the other end of the second optical fiber 60b. The light emitted from the other end of the second optical fiber 60b becomes the second optical axis 31b that crosses the second button 20b and travels toward the second light receiving unit 302b.

  Further, in the same manner, the third optical fiber 60c is smoothly bent by 90 degrees on the side of the third button 20c, and the other end of the third optical fiber 60c is moved from the left and right sides of the third button 20c to the second side. It is arranged toward the 3 button 20c side. A third light receiving portion 302c is provided on the other side of the left and right of the third button 20c. The third light receiving portion 302c is disposed so as to face the other end of the third optical fiber 60c.

  The light emitted from the light emitting unit 301 enters one end of the third optical fiber 60c. The incident light is guided to the third optical fiber 60c and is emitted again from the other end of the third optical fiber 60c. The light emitted from the other end of the third optical fiber 60c becomes the third optical axis 31c that crosses the third button 20c and travels toward the third light receiving unit 302c.

  In this way, the first optical axis 31a, the second optical axis 31b, and the third optical axis 31c are configured such that the light emitted from the light emitting unit 301 of the sensor is the first optical fiber 60a and the second optical fiber 60b, respectively. And guided to the third optical fiber 60c. Each optical axis 31 generated in this way is arranged along the left-right direction.

  Further, in accordance with the arrangement of the optical axis 31, the push button shafts 21 of the push buttons 20 are also arranged along the left-right direction. Here, the push button shaft 21 is arranged at the center in the vertical direction of the operation surface of the push button 20. For this reason, each push button 20 can rotate up and down with respect to the operation panel 10 around the push button shaft 21.

  Each through hole 22 (first button through hole 22a, second button through hole 22b, and third button through hole 22c) provided in each push button 20 is also arranged along the left-right direction. Therefore, the push button shaft 21, the through hole 22, and the optical axis 31 are all arranged in parallel. The optical axis 31 is arranged on one side of the upper and lower sides when viewed from the push button shaft 21. Each through hole 22 of each push button 20 is also arranged on one side of the upper and lower sides as viewed from the push button shaft 21, that is, on the same side as the optical axis 31.

  And when pushbutton 20 exists in a normal position, arrangement of penetration hole 22 and optical axis 31 is adjusted so that optical axis 31 of a sensor may be arranged inside penetration hole 22. That is, when the push button 20 is in the normal position, the optical axis 31 passes through the through hole 22, and therefore the optical axis 31 is not blocked.

  On the other hand, when the push button 20 is in the operation position, the position of the through hole 22 changes with the displacement of the push button 20, so that the optical axis 31 of the sensor is not disposed inside the through hole 22 of the push button 20. That is, the optical axis 31 is removed from the through hole 22, and the optical axis 31 is blocked by the push button 20.

  The sensor outputs a detection signal corresponding to the blocking state of the optical axis 31 by the push button 20. More specifically, the sensor according to the third embodiment is the same as in the second embodiment described above, which light out of the plurality of optical axes 31 (the first optical axis 31a, the second optical axis 31b, and the third optical axis 31c). A detection signal is output according to whether the shaft 31 is shut off. That is, a detection signal is output from the sensor according to the light receiving state in each of the first light receiving unit 302a, the second light receiving unit 302b, and the third light receiving unit 302c.

  Specifically, first, when all of the first button 20a, the second button 20b, and the third button 20c are in the normal position, all of the first optical axis 31a, the second optical axis 31b, and the third optical axis 31c are used. Not blocked. At this time, all of the first light receiving unit 302a, the second light receiving unit 302b, and the third light receiving unit 302c receive light.

  And if the 1st button 20a is operated and it moves to an operation position, the 1st optical axis 31a will be interrupted | blocked and the 1st light-receiving part 302a will no longer receive light. Similarly, when the second button 20b is operated and displaced to the operation position, the second optical axis 31b is blocked and the second light receiving unit 302b does not receive light. Further, when the third button 20c is operated and displaced to the operation position, the third optical axis 31c is blocked and the third light receiving unit 302c does not receive light.

  The sensor outputs a detection signal in accordance with the blocking state of the plurality of optical axes 31 by the push button 20, that is, the light receiving states of the plurality of light receiving units (the first light receiving unit 302a, the second light receiving unit 302b, and the third light receiving unit 302c). Output.

  The detection signal output from the sensor is input to the determination unit. Although the determination unit 40 is illustrated in FIG. 1 of the first embodiment, the determination unit is not illustrated in FIG. 6 (the same applies to the elevator control device (50)). The determination unit determines the push button 20 at the operation position among the plurality of push buttons 20 based on the detection signal from the sensor.

Here, as described above, there is a one-to-one relationship between the push button 20 at the operation position and the optical axis 31 that is blocked, that is, the light receiving unit that stops receiving light. Therefore, for example, the determination unit prepares a correspondence relationship between the push button 20 at the operation position and the optical axis 31 to be blocked in advance, so that which push button 20 is operated based on the detection signal from the sensor. It can be determined whether it is in a position.
Other configurations and operations are the same as those in the second embodiment, and a detailed description thereof will be omitted.

  The push button device of the elevator configured as described above can achieve the same effects as those of the second embodiment, and further increases the degree of freedom of the arrangement of the optical axis of the sensor, and has a flexible button layout. Can be realized. In addition, the number of required light emitting units can be reduced.

  10 operation panel, 11 button recess, 11a first button recess, 11b second button recess, 11c third button recess, 20 push button, 20a first button, 20b second button, 20c third button, 21 Push button shaft, 21a First button shaft, 21b Second button shaft, 21c Third button shaft, 22 Through hole, 22a First button through hole, 22b Second button through hole, 22c Third button through hole, 23 Spring, 24 thin part, 25 thick part, 26 notch part, 26a first button notch part, 26b second button notch part, 26c third button notch part, 30 sensor, 301 light emitting part, 301a first light emitting part, 301b second Light emitting unit, 301c Third light emitting unit, 302a First light receiving unit, 302b Second light receiving unit, 302c 3 light receiving units, 31 optical axes, 31a first optical axis, 31b second optical axis, 31c third optical axis, 40 determination unit, 50 elevator control device, 60a first optical fiber, 60b second optical fiber, 60c third Optical fiber

Claims (6)

A plurality of buttons provided on the operation panel of the elevator and displaceable between a normal position and an operation position by a user's operation;
A sensor that emits light to generate an optical axis, and outputs a detection signal according to the state of blocking of the optical axis by the button;
Determination means for determining the button at the operation position among the plurality of buttons based on a detection signal from the sensor;
Each of the plurality of buttons is
A through-hole is formed in which the optical axis is disposed in the normal position;
A push button device for an elevator that blocks the optical axis when the optical axis is not disposed in the through hole of the button at the operation position. Each of the plurality of buttons is provided so that an angle formed by the front surface of the operation panel and the operation surface of the button can be changed by rotating with respect to the operation panel about a rotation axis.
The normal position is a position where the front surface of the operation panel and the operation surface of the button are arranged in parallel,
2. The push button device for an elevator according to claim 1, wherein the operation position is a position where an angle formed by the front surface of the operation panel and the operation surface of the button is set to be equal to or greater than a predetermined angle that is not 0 degrees. Each of the plurality of buttons is
Thin part,
A thick part thicker in the direction perpendicular to the operation surface than the thin part,
The rotation shaft is provided in the thin portion in parallel with the operation surface,
The elevator push button device according to claim 2, wherein the through hole is formed in the thick portion. The one optical axis is disposed so as to pass through the through holes of the plurality of buttons in the normal position,
The push button device for an elevator according to any one of claims 1 to 3, wherein the sensor is a distance sensor that outputs a detection signal according to a distance from the sensor to a position where the optical axis is blocked. . There are a plurality of the optical axes,
The elevator pushbutton device according to any one of claims 1 to 3, wherein the sensor outputs a detection signal according to which of the plurality of optical axes is interrupted.   The elevator pushbutton device according to claim 5, wherein the plurality of optical axes are generated by light emitted from a light emitting unit of the sensor being guided by an optical fiber.

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