KR101250697B1 - Elevator door control device - Google Patents

Abstract

The position switch provided only in one place along the advancing direction of a door panel provides the control apparatus of the elevator door which detects so that it can discriminate | determine whether it is in any of the opening and closing positions. To this end, in the door control device for controlling the opening and closing operation of the door panel for opening and closing the door of the elevator in the left-right direction, one position switch, the first and second light emitters provided in the position switch and the first and second light receivers And a door for determining whether the door panel is in the deployed and fully closed position based on the first and second shielding plates provided in the door panel and the signal regarding the light reception state of the first and second receivers output from the position switch. And a first shielding plate shielding at least one predetermined light of the first and second lights in the case of door deployment, and the second shielding plate is made of the first and second lights in the case of door closing. It is set as the structure which shields one or more predetermined | prescribed lights different from the predetermined | prescribed light which one shielding board shields.

Description

Control device of an elevator door {ELEVATOR DOOR CONTROL DEVICE}

The present invention relates to a control device of an elevator door.

Background Art In recent years, as so-called machine room-less elevators, in which elevator hoisting machines are arranged in hoistways, have been supplied, space saving of elevator equipment in hoistways has been required, and even in elevator door control devices, There is a need for a compact and high performance device.

The control apparatus of an elevator door normally opens and closes a car door in a horizontal direction by transmitting torque, such as a door motor, to a door panel through a transmission mechanism.

In order to stop the door panel at the fully open position and the fully closed position, it is necessary to recognize both of the open position and the fully closed position, thereby detecting that the door panel is at the fully open position and the fully closed position. It is common to have a position switch.

Regarding this position switch, an optical switch (permeable photometer) that detects the open position and the closed position by using light blocking (shielding) or reflection of light has better accuracy than other types of switches such as mechanical type, and It is widely used because it is relatively strong against foreign objects or water.

In the conventional elevator door control device, the position of the elevator door is detected by this light switch (permeation light receiver), and dust or oil adheres to the detection part of the light switch, which impedes the passage of light, thereby causing the door panel to operate at high speed. It is aimed at preventing operation, and it is one light switch which detects that a door panel is in a deployment position by shading, and two light switches which detect that a door panel is approaching a closed position by shading. It is known to comprise three optical switches, and to control the movement speed of the door panel to be low when the optical switch is shielded by the light shielding plate provided in the door panel (see Patent Document 1, for example).

Similarly, the position of the door is detected by an optical switch (penetrator), and even when external light is irradiated to the optical switch, the object is to prevent malfunction of the door caused by the irradiation. The count value is reset by shading detection of the fully closed detection light switch for detecting the fully closed position of the door panel, the unfolding detection light switch for detecting the unfolding position, the totally closed detection light switch and the unfolding detection light switch, and the fully closed position or unfolded position. A position calculation counter for detecting a position of a door panel from a door and an elevator door control device for controlling the opening / closing speed of a door motor based on the position of the door panel by a position calculation counter, wherein the count value of the position calculation counter is predetermined. Despite the constant value over time, both the fully closed detection light switch and the unfold detection light switch If that is, it is known also having a protection circuit to interrupt the power supplied to the door motor (for example, see Patent Document 2).

The object is to align the opening and closing direction with the rotational direction of the door motor prior to the opening and closing operation of the door panel. The door panel is rotated at a low speed in a predetermined direction to drive the door panel. Detect the relationship between the rotational direction of the door motor and the opening / closing direction of the door panel according to which one of the position sensors is operated, and rotate the door motor based on the detection result with respect to the opening / closing command signal from the control panel to open or close the doorway. The structure is also known (for example, refer patent document 3).

[Patent Document 1] Japanese Patent Application Laid-Open No. 60-218282 [Patent Document 2] Japanese Unexamined Patent Application Publication No. 2002-053280 [Patent Document 3] Japanese Unexamined Patent Application Publication No. 2001-354379

Thus, in the conventional elevator door control apparatus disclosed in such a patent document, one or more shielding plates provided in the door panel are transversely provided with the transmissive receivers of each of the plurality of position switches provided in accordance with the advancing direction of the door panel. It is possible to recognize the position of the door by its diameter. However, in such a configuration, since a plurality of position switches, which are generally more expensive than the shielding plate, are used, there is a problem that the cost of the entire apparatus becomes high and the cost increases.

Moreover, although the structure which detects the open position and the fully closed position of a door panel can also be considered by providing one position switch and two shielding plates, in such a structure, a door panel may exist in either an unfolded position or a fully closed position. Since the same detection signal is output from the position switch at any time, the control device or the like has a problem in that it is not possible to determine whether the door panel is in one of the deployed position and the fully closed position.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and the position switch provided in only one position according to the travel direction of the door panel can detect whether the door panel is in one of the deployed position and the fully closed position. It is to obtain the control device of the elevator door.

In the elevator door control device according to the present invention, the elevator door control device for controlling the opening and closing operation of the door panel for opening and closing the door of the elevator in the left and right direction, the door panel is in the open position and in the fully closed position A position switch for detecting the first position; a first light receiver provided at the position switch; and a first light receiver configured to transmit the first light; and a first light receiver provided at a position facing the first light transmitter of the position switch; A second light emitter provided at the position switch to emit a second light, a second light receiver provided at a position facing the second light emitter of the position switch, and receiving the second light; A light shielding state of a first shielding plate and a second shielding plate, and the first light receiver and the second light receiver output from the position switch On the basis of the call, it is provided with a door control device main body for controlling the opening and closing operation of the door panel by determining whether the door panel is in the open position and the fully closed position, wherein the first shielding plate is When in any one of the fully closed position, it shields one or more predetermined light of the said 1st light and the said 2nd light, and the said 2nd shielding plate is carried out, when the said door panel is in the other of a deployment position or a fully closed position, It is set as the structure which shields one or more predetermined light different from the said predetermined light which a said 1st shielding plate shields among 1 light and said 2nd light.

In the elevator door control apparatus according to the present invention, it is possible to detect whether the door panel is in one of the deployed position and the fully closed position by the position switch provided at only one position along the travel direction of the door panel. Achieve effect.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the whole structure of the elevator door control apparatus which concerns on Embodiment 1-10 of this invention.
FIG. 2 is a diagram schematically illustrating a common configuration in a door panel position detection unit of an elevator door control device according to Embodiment 1 to Embodiment 10 of the present invention.
3 is a diagram schematically illustrating a configuration of a door panel position detector of an elevator door control device according to Embodiment 1 of the present invention.
It is a figure which demonstrates typically the structure of the door panel position detection part of the elevator door control apparatus which concerns on Embodiment 2 of this invention.
5 is a diagram schematically illustrating a configuration of a door panel position detector of an elevator door control device according to a third embodiment of the present invention.
6 is a diagram schematically illustrating a configuration of a door panel position detector of an elevator door control device according to a fourth embodiment of the present invention.
7 is a flowchart showing the operation of the elevator door control device according to Embodiment 4 of the present invention.
8 is a cross-sectional view showing the configuration of a position switch of an elevator door control device according to Embodiment 6 of the present invention.
9 is a perspective view showing the configuration of a position switch of an elevator door control device according to Embodiment 7 of the present invention.
It is a perspective view which shows an example of a structure of the position switch of the elevator door control apparatus which concerns on Embodiment 8 of this invention.
It is a perspective view which shows the other example of the structure of the position switch of the elevator door control apparatus which concerns on Embodiment 8 of this invention.
It is a figure which demonstrates typically the structure of the door panel position detection part of the elevator door control apparatus which concerns on Embodiment 10 of this invention.

The present invention will be described with reference to the accompanying drawings. Throughout each figure, the same code | symbol shows the same part or an equivalent part, and the duplication description is abbreviate | omitted or abbreviate | omitted suitably.

Embodiment 1

1 to 3 are related to Embodiment 1 of the present invention, FIG. 1 is a front view showing the overall configuration of an elevator door control device, and FIG. 2 is a schematic diagram of a common configuration of a door panel position detection unit of an elevator door control device. FIG. 3: is a figure explaining the structure of the door panel position detection part of an elevator door control apparatus typically.

In the drawing, reference numeral 1 denotes a car doorway which is arranged in a hoistway of an elevator (not shown) and is an opening provided in front of a boarding car that lifts and lifts a user or the like.

The car door panel 2 is provided so that the car door panel 2 constituting a pair of left and right car doors can be opened and closed in a substantially horizontal direction. A car door hanger 2a is provided at the upper end of the car door panel 2, and a car door roller 2c is rotatably provided at the top of the car door hanger 2a. .

A beam (3) is provided above the car entrance (1), and the car door rail (4) is installed in the beam (3) along the opening and closing direction of the car door panel (2). It is. On this car door rail 4, the car door roller 2c is meshably engaged with each other, and the left and right pair of car door panels 2 are thus car door hangers 2a and car. It is suspended by the car door rail 4 through the door roller 2c. Then, the door roller 2c is guided to the door rail 4 to be driven so that the left and right door panels 2 open and close the car door 1.

The opening / closing operation of the door panel 2 is driven by the door drive device 5 disposed above the door rail 4 of the beam 3. The door drive device 5 has a door motor 6 provided on one side of the beam 3 in the left-right direction (ie, the direction parallel to the door opening and closing direction, hereinafter the same), and the rotation shaft of the door motor 6 The driving wheel 7 is fixed.

In addition, driven wheels 8 are rotatably provided on the other side in the left and right directions of the beams 3, and endless toothed belts are provided on these drive cars 7 and driven cars 8, respectively. toothed belt: 9) wound. The teeth provided with the unevenness | corrugation at equal intervals are formed in this toothed belt 9, and the drive car 7 and the driven vehicle 8 are provided with the unevenness | engagement which meshes with this tooth | gear.

In this way, the teeth of the toothed belt 9 mesh with the unevenness of the drive car 7 and the driven car 8, and the rotational drive of the door motor 6 is circulated by the toothed belt 9. The door drive device 5 which is a winding transmission mechanism to be transmitted to the engine is configured.

The locking member 10 is provided in the upper end of the door hanger 2a of each door panel, respectively. Of these locking members 10, the locking member 10 provided in one door panel 2 of the pair of left and right door panels 2 is locked to one side of the upper and lower sides of the toothed belt 9. And the locking member 10 provided in the other door panel 2 is latched on the other side of the upper and lower sides of the toothed belt 9, and the normal and reverse of the door motor 6 of the door drive device 5 is carried out. ) Both directions of rotational drive are converted into circular movements of the toothed belt 9 in both directions through a deceleration mechanism (not shown), so that the left and right pairs of door panels 2 move in opposite directions to each other and the car The doorway 1 is opened and closed.

In addition, the beam 3 is provided with a stopper 11 for restricting the door panel 2 from moving beyond the open and closed state. This stopper 11 is arrange | positioned in the position which the edge part of the door hanger 2a abuts when the door panel 2 is in an expanded state and a fully closed state.

In the beam 3, at a position above the door hanger 2a of one of the left and right pairs of door panels 2, a position switch 14 having a substantially U shape as viewed from the side is provided. It is arrange | positioned and provided so that the 1st shielding board 12 and the 2nd shielding board 13 mentioned later may be interposed. And similarly, the 1st shielding board 12 and the 2nd shielding board 13 are provided in the upper end part of the door hanger 2a of one door panel 2. As shown in FIG.

The 1st shielding plate 12 is arrange | positioned so that this 1st shielding plate 12 may be located in the U-shape inside of the position switch 14, when the door panel 2 is in a deployment position. Moreover, when the door panel 2 is in the fully closed position, the 2nd shielding board 13 is arrange | positioned so that this 2nd shielding board 13 may be located in the "-" inside of the position switch 14.

The position switch 14 detects that the shielding plate is located inside the U-shape and outputs a signal. Therefore, the first shielding plate 12 and the second shielding plate 13 are positioned so that the door panel 2 is closed. It is possible to detect what is in both the expanded position and the fully closed position.

The opening / closing operation of the elevator door, that is, the pair of left and right door panels 2 is controlled by the door control apparatus main body 18.

The rotational shaft of the door motor 6 is provided with a pulse encoder (not shown) that detects the rotational angle of the rotational shaft and outputs it as the rotational angle information signal. The door control device main body 18 has a rotational angle information signal from the pulse encoder. The position of the door panel 2 is grasped based on the detection signal of the open position and the closed position output from the position switch 14, and the rotation of the door motor 6 is controlled to open and close the door panel 2 in the horizontal direction. Let's do it.

The door panel position detecting unit for detecting the fully closed position and the unfolded position of the door panel 2, that is, the position switch 14 and the first shielding plate 12 and the second shielding plate 13 is configured as shown in FIG. It is.

That is, as described above, the position switch 14 shows a substantially U shape from the side and is provided in the beam 3. The light projection 15 made of, for example, a light emitting diode (LED) or the like is provided on one of the U-shaped protrusions, and the light receiver 16 made of, for example, a photodiode is provided on the other of the U-shaped protrusions. Such a light projector 15 and a light receiver 16 are disposed to face each other, and in general, the light 17 transmitted from the light projector 15 is received by the light receiver 16.

Moreover, the 1st shielding board 12 and the 2nd shielding board 13 are provided in the upper end of the door hanger 2a of one door panel 2 so that it may protrude upward through the junction part 19. As shown in FIG.

A long hole 19a having a long diameter in the left and right direction is laid in this joining part 19, and the 1st shielding board 12 is carried out by the bolt 19b through this long hole 19a. And the second shielding plate 13 is screwed to the door hanger 2a.

And the installation position of the 1st shielding board 12 and the 2nd shielding board 13 in the left-right direction is adjusted by changing the screwing position of the bolt 19b in this long hole 19a.

The mounting position of these 1st shielding plate 12 and the 2nd shielding plate 13 is specifically, as above-mentioned, The 1st shielding plate 12 is now made when the door panel 2 is in an unfolding position. 1 The shielding plate 12 is adjusted so as to be located inside the U-shape of the position switch 14. Moreover, when the door panel 2 is in the fully closed position, the 2nd shielding plate 13 is adjusted so that this 2nd shielding plate 13 may be located in the "-" inside of the position switch 14.

Therefore, when the door panel 2 is in the deployed position, the light 17 projected from the light projector 15 by the first shielding plate 12 is shielded, and the light receiver 16 does not receive the light 17. It becomes impossible to detect that the door panel 2 is in a deployment position.

Similarly, when the door panel 2 is in the fully closed position, the light 17 projected from the light projector 15 by the second shielding plate 13 is shielded, and the light receiver 16 receives the light 17. In this way, it is possible to detect that the door panel 2 is in the fully closed position.

The above is the structure common in each embodiment of this invention demonstrated below.

And furthermore, in this embodiment, the door panel position detection part is comprised as shown in FIG.

That is, the position switch 14 includes the first light projector 15a and the second light projector 15b which are arranged in the vertical direction (that is, the direction perpendicular to the door opening and closing direction and in the same plane as the door panel, hereinafter the same). Have. And the 1st light receiver 16a is arrange | positioned in the position which opposes the 1st light emitter 15a, and the 2nd light receiver 16b is arrange | positioned similarly in the up-down direction at the position which opposes the 2nd light emitter 15b. .

The first light 17a transmitted from the first light projector 15a is received by the first light receiver 16a, and the position detection of the door panel 2 is performed by the presence or absence of light reception. The position of the door panel 2 is also detected by the presence or absence of light reception by the second light receiver 16b of the second light 17b projected from the second light projector 15b.

The first shielding plate 12 and the second shielding plate 13 are different from each other in the vertical direction, and in this case, the first shielding plate 12 in which the door panel 2 is caught by the position switch 14 in the deployed position. The vertical dimension of is longer than the vertical dimension of the 2nd shielding board 13 which the door panel 2 catches on the position switch 14 in the fully closed position.

In addition, the first shielding plate 12 may vertically shield both of the first light 17a projected from the first light projector 15a and the second light 17b projected from the second projector 15b. Adjusted to dimensions. In contrast, the second shielding plate 13 shields only the second light 17b projected from the second light projector 15b disposed below, and the first light projected from the first light projector 15a disposed above. The light 17a is adjusted to the vertical dimension which does not block light.

In the control apparatus of the elevator door comprised in this way, when the door panel 2 becomes a deployment position, the 1st light 17a and the 2nd light projector which are projected from the 1st light projector 15a by the 1st shielding board 12 Both of the second lights 17b projected from 15b are simultaneously shielded. Then, no light reception signal is output from both the first light receiver 16a and the second light receiver 16b (or the light reception signal is not output, which is the same below). And when receiving no light reception signal from both this 1st light receiver 16a and the 2nd light receiver 16b, the door control apparatus main body 18 judges that the door panel 2 is in a deployment position, and this judgment Based on this, door opening / closing control such as rotation drive control of the door motor 6 is performed.

When the door panel 2 is in the fully closed position, the second light 17b projected from the second light projector 15b by the second shield plate 13 is shielded, but is projected from the first light projector 15a. The first light 17a is not shielded. Accordingly, no light reception signal is output from the first light receiver 16a, while no light reception signal is output from the second light receiver 16b, and the light reception signal from the first light receiver 16a is received. Upon receiving the no-light-receiving signal from the second light receiver 16b, the door control apparatus main body 18 determines that the door panel 2 is in the fully closed position, and based on this determination, rotational drive of the door motor 6 is performed. Door opening and closing control such as control is performed.

The control apparatus of the elevator door comprised as mentioned above is one position switch which detects that a door panel is in a deployment position, and is in the fully closed position, the 1st illuminator provided in a position switch, and which transmits a 1st light, and a position switch A first light receiver provided at a position opposite to the first light emitter of the first light receiver; a second light receiver provided at the position switch to transmit the second light; and a second light receiver disposed at the position opposite to the second light receiver of the position switch; On the basis of a second light receiver for receiving light, a first shielding plate and a second shielding plate provided on the door panel, and a signal regarding a light receiving state of the first light receiver and the second light receiver output from the position switch, It is provided with a door control device main body for controlling the opening and closing operation of the door panel by determining whether the door panel is in the open position and the fully closed position, the first shielding plate is When in either of the closed positions, it shields at least one predetermined light of the first and second lights, and the second shielding plate is the first and second lights when the door panel is in the deployed position or the other side of the fully closed position. Among the lights, at least one predetermined light different from the predetermined light shielded by the first shielding plate is shielded.

For this reason, the position switch provided in only one position along the advancing direction of the door panel can detect whether the door panel exists in either the unfolded position or the fully closed position, and can reduce cost and downsize the whole apparatus. Can be.

Here, when the door panel is in the deployed position or the fully closed position, at least one predetermined light shielded by the first shielding plate means a combination of at least one of the first light and the second light. One or more predetermined lights different from the predetermined light shielded by the first shielding plate shielded by the second shielding plate may be common to the predetermined light shielded by the first shielding plate if the combination of the lights is different.

Moreover, the control apparatus of the elevator door in this embodiment arrange | positions the 1st light projector and the 2nd light projector along the up-down direction, and the up-down direction dimension of one shielding plate among a 1st shielding board and a 2nd shielding board is shielding the other. Longer than the vertical dimension of the plate, one shield plate shields both the first light and the second light when the door panel is in either the deployed position or the fully closed position, and the other shielded plate has the door panel in the deployed position. Or when it is in the other side of a fully closed position, it is comprised so that one of 1st light and 2nd light may be shielded.

For this reason, the above effects can be achieved.

Embodiment 2 Fig.

1 and 4 are related to Embodiment 2 of this invention, FIG. 1: is a front view which shows the whole structure of an elevator door control apparatus, FIG. 4: shows typically the structure of the door panel position detection part of an elevator door control apparatus. It is a figure.

The above-mentioned Embodiment 1 changes the output signal from the position switch in the door open state and the closed state by changing the number of lights from the shielding transmitter by changing the vertical dimension of the two shield plates differently. Although the state was made distinguishable, Embodiment 2 demonstrated here changes the light of the light projector which shields by changing the installation position of the two shielding plates in the up-down direction mutually, and from the position switch in a door open state and a fully closed state. By changing the output signal of the system to distinguish these states.

That is, the first shielding plate 12 and the second shielding plate 13 are connected through the arm portion 12a of the first shielding plate protruding upward from each bonding portion 19 and the arm portion 13a of the second shielding plate. And door hangers 2a, respectively.

Here, the arm portion 12a of the first shielding plate and the arm portion 13a of the second shielding plate are different from each other in the vertical dimension, and in this case, the vertical dimension of the arm portion 12a of the first shielding plate is the second shielding plate. It is longer than the vertical dimension of the arm part 13a. And the 1st shielding board 12 is provided in the upper end of the arm part 12a of a 1st shielding board, and the 2nd shielding board 13 is provided in the upper end of the arm part 13a of a 2nd shielding board, respectively.

The vertical dimension of the arm portion 12a of the first shielding plate is configured to shield only the first light 17a projected from the first light projector 15a in which the first shielding plate 12 is disposed upward, and to be disposed below. The second light 17b that projects from the two light projectors 15b is adjusted so as not to block light. On the other hand, the up-down direction dimension of the arm part 13a of a 2nd shielding plate shields only the 2nd light 17b projected from the 2nd light projector 15b in which the 2nd shielding plate 13 is arrange | positioned below, and upwards The first light 17a that is projected from the first light projector 15a disposed in the is adjusted so as not to block light.

In addition, since the other structure is the same as that of Embodiment 1, the detailed description is abbreviate | omitted.

In the control apparatus of the elevator door comprised in this way, when the door panel 2 will be in a deployment position, the 1st light 17a which will be transmitted from the 1st light projector 15a by the 1st shielding plate 12 will be shielded, The second light 17b projected from the second light projector 15b is not shielded. Therefore, no light-receiving signal is output from the first light receiver 16a, while no light-receiving signal is output from the second light receiver 16b, and the light-receiving signal from the first light receiver 16a is also received. Upon receiving the light reception signal from the second light receiver 16b, the door control apparatus main body 18 determines that the door panel 2 is in the deployed position, and based on this determination, rotational drive of the door motor 6 is performed. Door opening and closing control such as control is performed.

When the door panel 2 is in the fully closed position, the second light 17b projected from the second light projector 15b by the second shield plate 13 is shielded, but is projected from the first light projector 15a. The first light 17a is not shielded. Accordingly, no light reception signal is output from the first light receiver 16a, whereas no light reception signal is output from the second light receiver 16b, and the second light receiver 16a receives the presence of light reception from the first light receiver 16a. Receiving the no-light-receiving signal from the light receiver 16b, the door control apparatus main body 18 determines that the door panel 2 is in the fully closed position, and based on this determination, rotation drive control of the door motor 6 or the like. Door opening and closing control is performed.

In the control apparatus of the elevator door comprised as mentioned above, a 1st light projector and a 2nd light projector are arrange | positioned in the up-down direction, and a 1st shielding board and a 2nd shielding board are arrange | positioned in a different position in a vertical direction, and 1st shielding The plate shields the light of only one of the first light and the second light when the door panel is in either the deployed position or the fully closed position, and the second shielding plate is provided at the other side of the deployed position or the fully closed position. If there is, only the other of the 1st light and the 2nd light is comprised so that the same effect as Embodiment 1 can be achieved.

Embodiment 3.

1 and 5 are related to Embodiment 3 of this invention, FIG. 1 is a front view which shows the whole structure of the elevator door control apparatus, FIG. 5: shows typically the structure of the door panel position detection part of an elevator door control apparatus. It is a figure.

Embodiment 3 demonstrated here arrange | positions two transmitters in the left-right direction, and changes the light of the transmitter which shields by two shielding plates, and outputs the output signal from a position switch in a door open state and a fully closed state. Change to distinguish these states.

That is, the position switch 14 has the 1st light projector 15a and the 2nd light projector 15b arrange | positioned in the left-right direction. The first light receiver 16a is arranged at the position facing the first light projector 15a and the second light receiver 16b is arranged in the right and left direction at the position opposite to the second light receiver 15b. . In this case, the first light emitter 15a and the first light receiver 16a are relatively on the first shielding plate 12 side, and the second light emitter 15b and the second light receiver 16b are relatively on the second shielding plate. It is arrange | positioned at the (13) side.

The up-down direction dimension of the arm part 12a of the 1st shielding board which respectively supports the 1st shielding board 12 and the 2nd shielding board 13 and the arm part 13a of the 2nd shielding board is substantially the same.

The installation position of the 1st shielding plate 12 in the left-right direction is the 1st light-transmitter by which the 1st shielding plate 12 is arrange | positioned at the 1st shielding plate 12 side when the door panel 2 is in a deployment position ( 2nd light which shields only the 1st light 17a which is transmitted from 15a, and projects from the 2nd light projector 15b arrange | positioned at the half 1st shielding plate 12 side (2nd shielding plate 13 side) ( 17b) is adjusted so as not to shade. On the other hand, the installation position of the 2nd shielding board 13 in the left-right direction is the 2nd light (2) which projected from the 2nd light projector 15b by which the 2nd shielding board 13 is arrange | positioned at the 2nd shielding board 13 side ( Only the light shield 17b is shielded, and the first light 17a projected from the first light projector 15a disposed on the second shielding plate 13 side (the first shielding plate 12 side) is adjusted so as not to shield.

In addition, since the other structure is the same as that of Embodiment 1, the detailed description is abbreviate | omitted.

In the control apparatus of the elevator door comprised in this way, when the door panel 2 will be in a deployment position, the 1st light 17a which will be transmitted from the 1st light projector 15a by the 1st shielding plate 12 will be shielded, The second light 17b projected from the second light projector 15b is not shielded. Therefore, no light-receiving signal is output from the first light receiver 16a, while no light-receiving signal is not output from the second light receiver 16b, and it receives no light-receiving from the first light receiver 16a. Receiving the light reception signal from the light receiver 16b, the door control device main body 18 determines that the door panel 2 is in the deployed position, and based on this determination, rotation drive control of the door motor 6 is performed. Door opening / closing control is performed.

When the door panel 2 is in the fully closed position, the second light 17b projected from the second light projector 15b by the second shield plate 13 is shielded, but is projected from the first light projector 15a. The first light 17a is not shielded. Therefore, no light reception signal is output from the first light receiver 16a, while no light reception signal is output from the second light receiver 16b, and the light reception signal from the first light receiver 16a is received. Receiving a signal of no light reception from the second light receiver 16b, the door control apparatus main body 18 determines that the door panel 2 is in the fully closed position, and based on this determination, the door motor 6 Door open / close control such as rotation drive control is performed.

In addition, in this embodiment, although the position of the light receiver was arrange | positioned lined up to the left-right direction, you may add this to line up in the up-down direction, ie, you may arrange | position two pairs of light receivers obliquely.

In addition, one of the two shielding plates may be lengthened in one of the left and right directions so as to shield light from both of the two light-receiving receivers.

In the control apparatus of the elevator door comprised as mentioned above, the effect similar to Embodiment 1 can be achieved, In addition, the 1st light projector and the 2nd light projector are arrange | positioned in the left-right direction, and the 1st shielding plate has the door panel unfolded. The light of only one of the first light and the second light is shielded when in either the position or the fully closed position, and the second shielding plate is the first light when the door panel is in the unfolded position or the other side of the fully closed position. And since it is comprised so that only the other side of 2nd light may be shielded, it is possible to make the vertical dimension of a position switch smaller.

Embodiment 4.

1, 6, and 7 relate to Embodiment 4 of the present invention, FIG. 1 is a front view showing the overall configuration of an elevator door control device, and FIG. 6 schematically illustrates the configuration of a door panel position detection unit of an elevator door control device. 7 is a flowchart showing the operation of the elevator door control device.

Embodiment 4 demonstrated here is the structure of Embodiment 3 WHEREIN: While making the left-right direction dimension of one shield plate longer than the space | interval dimension of the left-right direction of two pairs of light-receivers, two pairs by the light-shielding plate of this long dimension By adding the light shielding sequence of the light-receiving light receiver, it is made to judge whether the door panel exists in either a deployment position or a fully closed position.

That is, the horizontal direction of either one of the 1st shielding plate 12 and the 2nd shielding plate 13, and here it is set as the 2nd shielding plate 13, is the 1st light projector 15a and the 2nd light projector 15b. It is adjusted so that it becomes longer than the space | interval dimension of the left-right direction between (). In other words, the horizontal dimension of the second shielding plate 13 simultaneously shields both of the first light 17a from the first light projector 15a and the second light 17b from the second light projector 15b. Long enough to do

In addition, since the other structure is the same as that of Embodiment 3, the detailed description is abbreviate | omitted.

In the control apparatus of the elevator door comprised in this way, since the discrimination | operation operation when the door panel 2 is set to a deployment position is the same as that of Embodiment 3, the description is abbreviate | omitted.

The operation of determining whether the door panel 2 is in the fully closed position is performed in accordance with the flow of FIG.

That is, the door control apparatus main body 18 is based on the signal output from the position switch 14 about whether the 1st light receiver 16a and the 2nd light receiver 16b are not receiving light. Confirm. In this confirmation, when it is confirmed that both the first light receiver 16a and the second light receiver 16b are not receiving light, the process proceeds to Step S2.

In this step S2, the door control apparatus main body 18 has a 2nd shielding plate (for the order (shielding order) which became the state which the 1st light receiver 16a and the 2nd light receiver 16b are not receiving light. The second light receiver 16b on the 13th side is first, and it is checked whether or not the first light receiver 16a on the half second shield plate 13 side is rearward.

In this confirmation, when it is confirmed that the second light receiver 16b is first and the first light receiver 16a is later in relation to the light shielding turn, the process proceeds to step S3, and the door control apparatus main body 18 is a door panel ( After 2) is determined to be fully closed, the process returns to Step S1.

On the other hand, in confirmation of step S2, when it is not confirmed that the 2nd light receiver 16b is the first in the light shielding turn, and the 1st light receiver 16a is later, it progresses to step S4 and the door control apparatus main body 18 ) Determines that an abnormality such as a power failure or a cable break such as a position switch occurs such that both the first light receiver 16a and the second light receiver 16b become no light reception state. Return to step S1.

The control apparatus of the elevator door comprised as mentioned above is arrange | positioned so that the 1st light projector and the 2nd light projector may be arrange | positioned in the left-right direction, and the left-right dimension of one shielding board among a 1st shielding board and a 2nd shielding board is the left-right side of the other shielding board. Longer than the directional dimension, one shield plate shields both the first and second lights when the door panel is in either the deployed position or the fully closed position, and the other shield plate is the door panel in the deployed position or fully closed position. In the case of the other side, the door panel is shielded based on the order in which one of the first light and the second light is shielded, and the door control device main body is in a state where the first light receiver and the second light receiver are not receiving light. It is comprised so that it may determine whether it exists in either a deployment position or a fully closed position.

For this reason, the same effect as Embodiment 3 can be achieved, and abnormality, such as a power supply abnormality or cable disconnection, such as a position switch, generate | occur | produces, so that neither the 1st receiver nor the 2nd receiver is receiving light. It is possible to detect that an abnormality has become.

Embodiment 5:

Embodiment 5 demonstrated here is the structure of Embodiment 1 thru | or Embodiment 4 WHEREIN: The side which separates a light receiver from a door drive device among the two U-shaped protrusions of a position switch, ie, the side which spaces from a beam. Would have to come in.

In other words, the light projector is provided on the side opposite to the light receiver, so that the light projector is provided on the door driving device side, that is, on the beam side, of the two U-shaped protrusions of the position switch.

That is, as described above, the position switch 14 shows a substantially U shape from the side and is provided in the beam 3. A light projector 15 is provided on the door driving device 5 side, that is, on the beam 3 side, of the two U-shaped protrusions. Moreover, the light receiver 16 is provided so that the light-receiver 16 may be opposed to the light projector 15 among the two U-shaped protrusions which are spaced apart from the door drive device 5, ie, the spaced apart from the beam 3.

In addition, about the other structure and operation | movement, since it is the same as any one of Embodiment 1-4, the detailed description is abbreviate | omitted.

In the elevator door control device configured as described above, the same effect as any one of the first to fourth embodiments can be achieved, and the position switch exhibits a substantially U-shape viewed from the side, and is provided above the doorway. The beam is arranged and provided so that one of the substantially U-shaped protrusions is on the beam side, and the first and second light receivers are provided on the other of the almost U-shaped protrusions, which are the side away from the beam. This disturbance light is less likely to directly enter the receiver, and it is possible to suppress malfunction.

Embodiment 6:

8 is a cross-sectional view showing a configuration of a position switch of an elevator door control device according to Embodiment 6 of the present invention.

In Embodiment 6 described here, in the configuration of Embodiments 1 to 5, the transmitter and / or the receiver is provided at a position retracted from the U-shaped inner surface of the position switch.

That is, as described above, the position switch 14 shows a substantially U shape from the side and is provided in the beam 3. And in one of the protruding portions of the U-shape, the light projector 15 is provided at the position which is receded from the inner surface. Further, in the other U-shaped protrusion, the light receiver 16 is provided so as to face the light projector 15 at a position retreating from the inner surface.

In addition, although both the light projector 15 and the light receiver 16 were arrange | positioned in the position which retracted from the inner surface here, only one of the light emitter 15 and the light receiver 16 which had retracted from the inner surface was provided. You may arrange | position in position.

In addition, about another structure and operation | movement, since it is the same as any one of Embodiment 1-5, the detailed description is abbreviate | omitted.

In the elevator door control device configured as described above, the same effect as any one of the first to fifth embodiments can be achieved, and the position switch exhibits a substantially U shape when viewed from the side, and is provided above the doorway. A first light receiver and a second light receiver, and / or a first light receiver and a second light receiver are disposed at a position that is retracted from a substantially U-shaped inner surface, thereby improving the straightness of the light of the light emitter It is possible to reduce the influence on the light receiver to a small degree, and it is difficult for external light such as daylight to directly enter the light receiver, thereby suppressing malfunction.

Embodiment 7.

9 is a perspective view showing the configuration of a position switch of an elevator door control device according to Embodiment 7 of the present invention.

Embodiment 7 demonstrated here is a structure of Embodiment 1 thru | or Embodiment 6 WHEREIN: The light receiving indicator which displays the light reception state of the light receiver provided in this position switch is provided in the outer surface part of the side separated from the digit of a position switch. I did it.

That is, as described above, the position switch 14 shows a substantially U shape from the side and is provided in the beam 3. And on the outer surface part of the side separated from the beam 3 of this position switch 14, the light reception indicator which shows the light reception state of whether the light receiver 16 provided in this position switch 14 is receiving light ( 20) is provided.

9 is an example when the 1st light receiver 16a and the 2nd light receiver 16b are arrange | positioned in the up-down direction, and the light receiving indicator 20 of the 1st light receiver 16a is thus shown. Two, the 1st light receiving indicator 20a which displays a light reception state, and the 2nd light receiving indicator 20b which displays the light reception state of the 2nd light receiver 16b are provided.

In addition, although the example about the arrangement | positioning which arranged the light receiver up and down was shown here, it is possible to comprise similarly about another arrangement.

In addition, about another structure and operation | movement, it is the same as any one of Embodiment 1-6, and the detailed description is abbreviate | omitted.

In the elevator door control device configured as described above, the same effect as any one of the first to sixth embodiments can be achieved, and provided on the outer surface of the position switch, the first and second receivers are provided. By further including a light receiving indicator for displaying the light receiving state, the operator can easily know the light receiving state of the light receiver in the adjustment work of the position switch and the shielding plate in the door opening and closing position. The efficiency can be improved.

Embodiment 8.

10 and 11 relate to Embodiment 8 of the present invention. FIG. 10 is a perspective view showing an example of a position switch configuration of an elevator door control apparatus, and FIG. 11 is a perspective view showing another example of a position switch configuration of an elevator door control apparatus. to be.

In the eighth embodiment described herein, in the configuration of the first to seventh embodiments, the external light shielding portion that prevents the disturbance light from entering the light receiver on both the left and right directions of the position switch does not interfere with the movement of the shielding plate. It was prepared to prevent.

That is, as an example of this embodiment, as shown in FIG. 10, the light shielding cover 21a which is the external light shielding part 21 is attached to the 1st shielding plate 12 and the both sides of the position switch 14 in the left-right direction. It is provided so as not to obstruct the movement of the second shielding plate 13.

Moreover, as another example of this embodiment, as shown in FIG. 11, the external light shielding part 21 is formed by making the left-right dimension 14a of a position switch longer than the thing of other embodiment.

In addition, about another structure and operation | movement, since it is the same as any one of Embodiment 1-7, the detailed description is abbreviate | omitted.

In the control apparatus of the elevator door comprised as mentioned above, the same effect as any one of Embodiment 1-7 can be achieved, In addition, it is provided in both the left-right direction of a position switch, and external light is a 1st light receiver. And an external light shielding portion that prevents the incidence of incident on the second light receiver, the disturbance light such as daylight hardly enters the light receiver directly, and it is possible to suppress malfunction.

Embodiment 9.

In Embodiment 9 demonstrated here, in the structure of Embodiment 1-8, it is made to cover the surface of a shielding plate with the coating material or a member with black or low light reflectance.

That is, the surfaces of the first shielding plate 12 and the second shielding plate 13 are covered with a paint or a member having a black or low light reflectance, and for other configurations and operations, any one of the first to eighth embodiments same.

In the elevator door control device configured as described above, the same effect as any one of the first to eighth embodiments can be achieved, and the first shielding plate and the second shielding plate have a black paint or a member having such a surface. Or by covering with the paint or member with low light reflectance, it is difficult for the reflected light by a shielding plate to directly enter a light receiver, and can suppress malfunction.

Embodiment 10:

FIG. 12 relates to a tenth embodiment of the present invention, which schematically illustrates a configuration of a door panel position detector of an elevator door control device. FIG.

In the tenth embodiment to be described herein, in the configuration of the first to ninth embodiments, the shape of the junction portion is substantially L-shaped from the side, and the disturbance light incident from below is blocked by the junction portion.

That is, as shown in FIG. 12, the junction part 19 is substantially L-shaped from the side. That is, from the surface screwed to the door hanger 2a by the long hole 19a and the bolt 19b, it is bent to the door drive device 5 side (beam 3 side) at substantially right angle. An almost horizontal surface is formed, and the first shielding plate 12 or the second shielding plate 13 is placed on the upper surface of the substantially horizontal surface.

And the installation position of the position switch 14 is also adjusted according to the installation position of this 1st shielding board 12 and the 2nd shielding board 13.

In addition, about another structure and operation | movement, since it is the same as any one of Embodiment 1-9, the detailed description is abbreviate | omitted.

In the control apparatus of the elevator door comprised as mentioned above, the effect similar to any one of Embodiment 1-9 can be achieved, In addition, it exhibits substantially L-shape from the side, and the 1st shielding board and the 2nd shielding Further provided with a joining portion for installing the plate in the door panel, the first shielding plate and the second shielding plate is placed on the upper surface of the substantially horizontal plane formed by the joining portion, the extraneous light incident from the bottom of the position switch to the light receiver It is possible to cut off and suppress the malfunction.

[Industrial Availability]

INDUSTRIAL APPLICABILITY The present invention can be used for an elevator door control device that detects the open position and the fully closed position of an elevator door and performs door open / close control.

1: car door 2: door panel
2a: door hanger 2c: door roller
3: beam 4: door rail
5: door driving device 6: door motor
7: driving car 8: driven car
9: toothed belt 10: locking member
11: stopper 12: first shielding plate
12a: Arm portion of first shield plate 13: second shield plate
13a: female part 14 of second shielding plate: position switch
14a: Left and right directions of position switch 15: Floodlight
15a: first floodlight 15b: second floodlight
16: receiver 16a: first receiver
16b: second receiver 17: light
17a: first light 17b: second light
18: door control unit main body 19: junction
19a: long hole 19b: bolt
20: light receiving indicator 20a: first light receiving indicator
20b: second light receiving indicator 21: external light shielding portion
21a: shading cover

Claims (11)

An elevator door control device for controlling the opening and closing operation of the door panel for opening and closing the door of the elevator in the left and right directions,
One position switch for detecting that the door panel is in the fully open position and in the fully closed position;
A first light projector provided in the position switch and configured to transmit first light;
A first light receiver provided at a position opposite the first light emitter of the position switch to receive the first light;
A second light projector provided in the position switch and configured to transmit a second light;
A second receiver configured to receive the second light at a position opposite to the second transmitter of the position switch;
A first shielding plate and a second shielding plate provided on the door panel;
On the basis of the signals relating to the light reception states of the first and second receivers output from the position switch, it is determined whether the door panel is in the deployed position and the fully closed position to control the opening and closing operation of the door panel. The door control apparatus main body is provided,
The first shielding plate shields at least one predetermined light of the first light and the second light when the door panel is in either the deployed position or the fully closed position.
The second shielding plate may include one or more predetermined lights different from the predetermined light shielded by the first shielding plate among the first light and the second light when the door panel is in the other of the deployed position or the fully closed position. An elevator door control device, characterized by shielding light. The method according to claim 1, wherein the first light emitter and the second light emitter are arranged in a vertical direction,
The up-down direction dimension of one shielding plate among the said 1st shielding plate and the said 2nd shielding plate is longer than the up-down direction dimension of the other shielding plate,
The one shielding plate shields both the first light and the second light when the door panel is in either the deployed position or the fully closed position,
The said other shielding plate shields either one of the said 1st light and the said 2nd light, when the said door panel is in the other of a deployment position or a fully closed position. The method according to claim 1, wherein the first light emitter and the second light emitter are arranged in a vertical direction,
The first shielding plate and the second shielding plate are disposed at different positions in the vertical direction,
The first shielding plate shields light of only one of the first light and the second light when the door panel is in either the deployed position or the fully closed position.
And the second shielding plate shields only the other side of the first light and the second light when the door panel is in the other of the deployed position or the fully closed position. The method according to claim 1, wherein the first light emitter and the second light emitter are arranged in a horizontal direction,
The first shielding plate shields light of only one of the first light and the second light when the door panel is in either the deployed position or the fully closed position.
And the second shielding plate shields only the other side of the first light and the second light when the door panel is at the other side of the deployed position or the fully closed position. The method according to claim 1, wherein the first light emitter and the second light emitter are arranged in a horizontal direction,
The left and right dimensions of the first shielding plate and the second shielding plate are longer than the left and right dimensions of the other shielding plate,
The one shielding plate shields both the first light and the second light when the door panel is in either the deployed position or the fully closed position,
The other shielding plate shields either one of the first light and the second light when the door panel is at the other side of the deployed position or the fully closed position,
The door control apparatus main body determines whether the door panel is on the one of the deployed position or the closed position based on the order in which the first and second receivers are not receiving light. Control device of elevator door. The method according to any one of claims 1 to 5,
The position switch has a substantially U-shape as viewed from the side, and is disposed so as to be arranged so that one of the almost U-shaped protrusions is on the beam side in a beam provided above the entrance.
And said first light receiver and said second light receiver are provided at said substantially U-shaped other protruding portion, which is a side spaced apart from said beam. The method according to any one of claims 1 to 5,
The position switch has a substantially U shape when viewed from the side, and is installed in a beam provided above the entrance,
And the first light receiver and the second light receiver and / or the first light receiver and the second light receiver are disposed at a position retracted from the substantially U-shaped inner surface. The method according to any one of claims 1 to 5,
And a light receiving indicator provided on an outer surface of the position switch and displaying a light receiving state of the first light receiver and the second light receiver. The method according to any one of claims 1 to 5,
And an external light shielding part provided on both sides in the left and right directions of the position switch and preventing external light from entering the first and second light receivers. The method according to any one of claims 1 to 5,
The first shielding plate and the second shielding plate are covered with a black paint or a member or a paint or a member having a low light reflectance. The method according to any one of claims 1 to 5,
It is almost L-shaped as seen from the side, and further provided with the junction part which provides the said 1st shielding plate and the said 2nd shielding plate in the said door panel,
And said first shielding plate and said second shielding plate are placed on an upper surface of a substantially horizontal plane formed by said joining portion.

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