JP2005041679A - Position detection device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a position detection device of an elevator easily and securely mountable even when there is a bending error of a mounting arm or a mounting error of a detection plate. <P>SOLUTION: This position detection device of an elevator has a detection means 7 installed in a car 2, a detected means 8 installed to an elevating shaft 1, and a supporting means 9 bearing the detected means 8, and detects the position of the car when the detection means 7 is opposed to the detected means 8. The detection means 7 is equipped with a member for receiving magnetic or optical signals provided via a spacing, and the detected means 8 is inserted in the receiving member, and equipped with a shielding member capable of shielding these signals. In this position detection device of the elevator, the supporting means 9 comprises a tip end mounting arm 92 bearing the shielding member, a rail side mounting arm 93 journaling the tip mounting arm 92 in a manner to adjust the position, and fixed to the elevating shaft 1, and an adjusting screw 109 adjusting angles of the tip end mounting arm 92 and the rail side mounting arm 93. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an elevator position detection device, and more particularly to a position detection device that can be easily installed and adjusted.

As is well known, a conventional elevator apparatus is such that a passenger car and a counterweight are suspended in a sheave shape on a sheave through a rope in a hoistway, and the sheave is driven by a drive motor to raise and lower the car. It is made to go up and down along the guide rail provided in the road.
Further, a detector for position detection is provided on the upper part of the car, and a detection plate is provided on the guide rail of the hoistway through an attachment arm. Since the detector and the detection plate are provided in a positional relationship so as to face each other when the floor surface of the car and the floor surface of the landing doorway coincide, the detection state of the detector and the detection plate can be detected. Thus, it is possible to detect the landing of the car on the floor landing.

  Specifically, the main body of the detector is formed in a U shape by a pair of extending portions and a connecting portion that connects one end of each of them, and a permanent magnet is built in one extending portion, and the other extending portion is incorporated. A reed switch is built in the existing part to constitute a magnetic signal transmission / reception member, and by fixing the coupling part to the car, the open end of the U-shaped body is directed to the guide rail side, In addition, the contact of the reed switch is set so that it is always closed by a magnetic signal sent to and received from the permanent magnet, and when the car has landed on the floor landing, a guide formed of a magnetic shielding plate The rail-side detection plate faces the detector, and is inserted between the extending portions from the open end of the U-shaped body of the detector to cut the magnetic path between the extending portions, and the reed switch is opened. As a result, the landing signal is transmitted to the control device. (For example, refer to Patent Document 1).

  FIG. 5 is a plan view showing a schematic configuration of a car elevator hoistway and a position detection device called a right-angled two-way opening provided on two side surfaces where the entrance / exit of the car is shifted by 90 °. In this case, the plane shape of the car 2 provided in the hoistway 1 is not a quadrangle, and the wall surface 4A between the entrances 3A and 3B and the wall surface 4B at the diagonal portion thereof are approximately 45 with respect to the wall surface of the hoistway 1. The guide rail 5 on the hoistway side and the corresponding car frame column 6 on the car side are provided in the space between the wall surfaces 4A, 4B and the corner of the hoistway 1. ing.

  Further, the detector 2 on the car 2 side that constitutes a part of the position detection device includes a device having a U-shaped main body having the same configuration as that described in Patent Document 1 described above, and a wall surface 4B and an entrance / exit 3B. The detection plate 8 on the hoistway side which is fixed to the upper part of the wall surface between the two and constitutes another part of the position detection device has the same configuration as that described in Patent Document 1 described above, and supports it. The attachment arm 9 is bent and extended at approximately 45 ° in the vicinity of the intermediate portion 9A, that is, the end of the wall surface 4B, and is fixed to the guide rail 5.

Japanese Examined Patent Publication No. 64-6110 (column 3, lines 1 to 29, FIGS. 1 and 2)

  The conventional elevator position detection apparatus is configured as described above. Particularly in the case of a right-angled two-way entrance car, various devices installed in the hoistway and various devices mounted on the car are arranged. As a result of the restriction, the detector 7 is disposed at a position relatively distant from the guide rail 5 as shown in the figure. As a result, the mounting arm 9 becomes long and the intermediate portion 9A corresponds to the wall surface shape of the car 2. Therefore, it takes a lot of time to adjust the detector 7 and the detection plate 8 to an appropriate positional relationship due to a bending error of the mounting arm 9 and a mounting error of the detection plate 8. There is a problem that the installation workability is significantly reduced.

  The present invention has been made to solve the above-described problems. An elevator position detecting device that can be easily and accurately installed even when there is a bending error of a mounting arm or a mounting error of a detection plate. The purpose is to provide.

  The elevator position detection apparatus according to the present invention includes an elevator car that moves up and down along a predetermined hoistway, a detection means provided in the elevator car, a detected means provided in the hoistway, An elevator position detecting device for detecting the position of the elevator car when the detecting means and the detected means are opposed to each other. The detecting means is provided with an interval. A magnetic or optical signal transmitting / receiving member; and the detected means includes a blocking member inserted between the transmitting / receiving members and configured to block the signal, and the support means supports the blocking member. A front end mounting arm, a rail side mounting arm that is supported on the hoistway so that the position of the front end mounting arm can be adjusted, and an adjustment screw that adjusts the angle between the front end mounting arm and the rail side mounting arm. It is those with a.

  The elevator position detection apparatus according to the present invention includes an elevator car that moves up and down along a predetermined hoistway, a detection means provided in the elevator car, a detected means provided in the hoistway, An elevator position detecting device for detecting the position of the elevator car when the detecting means and the detected means are opposed to each other. The detecting means is provided with an interval. A magnetic or optical signal transmitting / receiving member; and the detected means includes a blocking member inserted between the transmitting / receiving members and configured to block the signal, and the support means supports the blocking member. A front end mounting arm, a rail side mounting arm that is supported on the hoistway so that the position of the front end mounting arm can be adjusted, and an adjustment screw that adjusts the angle between the front end mounting arm and the rail side mounting arm. For those having a, even if a mounting error of the bending of the rail-side mounting arms errors or blocking member or the detector can be easily and accurately installing, it is possible to save labor work installation.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing a state in which the position detection device according to Embodiment 1 is viewed from above a hoistway.
In this figure, the detector 7 is provided as a detecting means for detecting the position of the car. As shown in FIG. 5, the detector 7 is fixed to the upper part of the wall surface between the wall surface 4B and the entrance / exit 3B of the car. The mounting portion 71 and a U-shaped main body 72 that is attached to the end of the hoistway and that has an open end facing the wall surface of the hoistway, and the U-shaped main body 72 is similar to the conventional device described above. A permanent magnet (not shown) is built in one extending portion 72A, and a reed switch (not shown) is built in the other extending portion 72B.
Note that each of the extending portions 72A and 72B may incorporate a light emitting element and a light receiving element in place of the transfer member composed of a permanent magnet and a reed switch.
Further, a detection plate or shielding plate 8 (hereinafter referred to as a shielding member 8) provided as a detection target is configured in the same manner as the conventional detection plate described above.
In order to adjust the positional relationship between the blocking member 8 and the detector 7, an adjusting member 11 that can be inserted into the blocking member 8 is provided. Details of the adjustment member 11 will be described later.

The mounting arm 9 provided as a support means for the blocking member 8 disposed opposite to the detector 7 includes a tip mounting arm 92 that fixes the blocking member 8 to one end by a screw 91 and a bolt 51 to the guide rail 5. Is constituted by a rail side mounting arm 93 to which is fixed.
The tip mounting arm 92 and the rail side mounting arm 93 are connected by the connecting device 10 as described below. FIG. 2 is a perspective view showing a connection structure between the tip mounting arm 92 and the rail side mounting arm 93 by the connecting device 10.

The rail-side mounting arm 93 is bent at approximately 45 ° in the middle portion 9A (FIG. 1) in correspondence with the wall surface of the car, similarly to FIG. The connecting metal fitting 101 is fixed by welding 102.
Further, the second connecting fitting 103, which is wider than the first connecting fitting 101 and is also formed in a U-shaped cross section, is combined with the first connecting fitting 101 so that the bent portions are overlapped as shown in the figure. The mounting screws 104 are used for connection. The mounting screw 104 is not firmly tightened, and the second connecting fitting 103 can be rotated clockwise with respect to the first connecting fitting 101 around the attaching screw 104 in the drawing.

In addition, an elongated hole 105 extending in a direction substantially perpendicular to the rail-side mounting arm 93 is provided at the other end of the bent portion of the second connecting fitting 103, and an attachment screw 106 inserted into the elongated hole 105 is attached to the second connecting metal 103. The second connecting fitting 103 is fixed to the first connecting fitting 101 and serves as a guide when the second connecting fitting 103 rotates clockwise in the figure.
Further, a tip mounting arm 92 is disposed so as to pass through the hole formed by the first and second connecting fittings 101 and 103, and is in contact with the inner surface of the flat portion of the second connecting fitting 103. Yes. A pair of long holes 107 extending in the length direction of the rail side mounting arm 93 are provided in the flat surface portion of the second connecting fitting 103, and mounting screws 108 inserted into the respective long holes 107 are attached to the tip mounting arm 92. It is fixed. Further, a screw hole is formed at the other end of the tip mounting arm 92, and an adjustment screw 109 is screwed together, so that the tip of the adjustment screw 109 contacts the rail side mounting arm 93 as shown in FIG. Has been.

FIG. 3 is a front view showing the configuration of the adjustment member 11 used when the position detection apparatus according to the first embodiment is installed.
As shown in the figure, the mounting groove 11C is formed from one end 11A to the other end 11B so as to form a U-shape as a whole, and the groove width on the one end 11A side is reduced from the other end 11B side. As will be described later, chamfer 11D is provided on both sides of the inlet portion of the groove to facilitate insertion into the blocking member 8. Further, the width of the other surface 11B is a dimension that can be inserted between one extending portion 72A and the other extending portion 72B of the U-shaped main body 72 in the detector 7 shown in FIG. The portion 11E is chamfered for easy insertion.

Next, installation adjustment of the position detection apparatus according to Embodiment 1 will be described.
First, the mounting groove 11C of the adjusting member 11 shown in FIG. 3 is inserted into the blocking member 8 shown in FIG. 1 from the car side. Since the chamfer 11D is applied to the inlet of the mounting groove 11C, it can be easily inserted. Further, the adjusting member 11 has a spring function, and the groove width of the mounting groove 11C is reduced on the inlet side. Therefore, by inserting it while expanding it, in the inserted state, it is crimped to the blocking member 8 and held at the insertion position.
FIG. 1 shows a state where the attachment groove 11 </ b> C of the adjustment member 11 is inserted into the blocking member 8. (The adjustment member 11 is hatched.)

The adjustment member 11 inserted and attached to the blocking member 8 in this way is positioned above the U-shaped main body 72 of the detector 7, and the lower surface of the adjustment member 11 has a U-shaped main body 72 as shown in FIG. The position in the vertical direction is adjusted so as to come into contact with the upper surface of the plate.
In this state, since the adjustment member 11 and the U-shaped main body 72 are not in an appropriate positional relationship, the lower surface of the adjustment member 11 is on the upper surface of any of the extending portions 72A or 72B of the U-shaped main body 72. They are in contact with each other and cannot be fitted between the extending portions.
In order to make this fit, the contact state between the adjustment member 11 and the main body 72 is confirmed, and the position adjustment by the connecting device 10 is performed.

  For example, when the adjustment member 11 is displaced in the direction of arrow a, which is the horizontal direction of the paper surface in FIG. 1, the mounting screw 108 shown in FIG. 2 is loosened to move the tip mounting arm 92 in the direction of arrow a in FIG. The adjustment member 11 is adjusted so that it can be fitted between the extending portions 72A and 72B of the U-shaped main body 72, and after the adjustment, the mounting screw 108 is tightened. Further, when the adjustment member 11 is displaced in the direction of the arrow b which is the vertical direction of the page in FIG. 1, the attachment screw 106 shown in FIG. 2 is loosened and the adjustment screw 109 is turned to By adjusting the angle with the rail side attachment arm 93, the adjustment member 11 is moved in a small amount in the direction b in FIG. 1, and the adjustment member 11 is located between the extending portions 72A and 72B of the U-shaped main body 72. Adjustment is made so that the fitting is possible, and after the adjustment, the mounting screw 106 is tightened. The adjustment member 11 is removed from the blocking member 8 after the installation is completed and stored in a predetermined place.

It is the schematic which shows the state which looked at the position detection apparatus by Embodiment 1 of this invention from the upper direction of the hoistway. It is a perspective view which shows the connection structure of the front-end | tip attachment arm and rail side attachment arm by the connection apparatus of Embodiment 1. FIG. It is a front view which shows the structure of the adjustment member used at the time of installation of the position detection apparatus by Embodiment 1. FIG. It is explanatory drawing which shows the state at the time of installation of the position detection apparatus by Embodiment 1. FIG. It is the schematic which shows the structure of the position detection apparatus in the conventional right-angled two-way exit.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 5 Guide rail, 7 Detector, 71 Attachment part, 72 Main body, 72A, 72B Extension part, 8 Blocking member, 9 Attachment arm, 92 Tip attachment arm, 93 Rail side attachment arm, 10 Connection device, 101 1st connection Metal fitting, 103 second connection metal fitting, 104, 106, 108 mounting screw, 109 adjustment screw, 11 adjustment member.

Claims (3)

  There is an elevator car that moves up and down along a predetermined hoistway, a detecting means provided in the elevator car, a detected means provided in the hoistway, and a supporting means for supporting the detected means. In the elevator position detecting apparatus for detecting the position of the elevator car when the detecting means and the detected means are opposed to each other, the detecting means includes a magnetic or optical signal transmitting / receiving member provided at an interval. The detected means includes a blocking member inserted between the transmitting and receiving members and configured to block the signal, and the supporting means includes a tip mounting arm for supporting the blocking member, and the tip mounting arm. A position of an elevator comprising: a rail-side mounting arm that is supported so as to be position-adjustable and fixed to the hoistway; and an adjustment screw that adjusts an angle between the tip mounting arm and the rail-side mounting arm. Detection device.   The detection means includes a pair of extending portions and a coupling portion that couples one ends of the extending portions, and provides the signal transmitting and receiving members to the extending portions of the body formed in a U-shape, The elevator position detecting device according to claim 1, wherein the blocking member of the detected means is formed in a plate shape having a thickness thinner than the interval between the extending portions.   A mounting groove that can be inserted into the blocking member and an outer shape that can be fitted between the extending portions of the U-shaped detecting means body, and the mounting groove is adjusted when adjusting the positional relationship between the detecting means and the blocking member. The elevator position detection device according to claim 2, further comprising an adjustment member that is inserted into and installed in the blocking member.

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