JP4368655B2 - Elevator hoistway deviation detector for seismic isolation building - Google Patents

Description

  This invention detects an elevator hoistway deviation of a seismic isolation building for a hoistway formed vertically through a lower layer of a building and a higher layer of an architecture provided on the lower layer via a seismic isolation device. Relates to the device.

  A low-rise part hoistway is provided in a low-rise part of the building, and a high-rise part hoistway is provided in a high-rise part of the building provided on the low-rise part via a seismic isolation device such as a seismic isolation rubber. Then, the lower layer hoistway and the higher layer hoistway are arranged in series to form an elevator hoistway. In such an elevator hoistway, when a force acts on the side of the building due to a strong wind or the like, a horizontal shift occurs between both the low-rise part hoistway and the high-rise part hoistway. For this reason, the normal operation of the elevator is hindered by the deviation between the two.

  For this reason, it is necessary to detect the deviation between the two, and in a conventional seismic isolation building elevator hoistway deviation detecting device, an upper part of the elevator hoistway formed in the vertical direction and a lower part Is placed opposite to the receiving unit, and a restricting means that allows a signal transmitted from the transmitting unit to reach the receiving unit only within a predetermined range in the horizontal direction is arranged between them. The control means which enables the operation of the elevator only when the signal is detected by the receiver. Thus, the elevator can be operated only when the displacement of the guide rail of the elevator is within the allowable range. (For example, refer to Patent Document 1).

JP 10-139308 A (summary)

  In a conventional seismic isolation building elevator hoistway deviation detection device, a light generator is used as a transmitter and a photoelectric converter is used as a receiver. Therefore, the detection of the deviation between the two becomes inaccurate due to dust or dirt. There was a problem. In addition, since the deviation detection between the two exceeds only a predetermined value, the operation of the elevator is quickly stopped by the operation of the deviation detection device, and the subsequent operation must be stopped. .

  The present invention has been made to eliminate such problems, and to obtain an elevator hoistway deviation detection device for a seismic isolation building that has a simple configuration, operates accurately, and can be easily installed. With the goal.

In elevator hoistway deviation detecting system of the seismic isolation building according to the present invention, a low rise portion hoistway formed on the lower part of the building, building high-rise buildings, which is provided through the seismic isolation device on the lower floors a rise portion hoistway disposed on the lower portion hoistway series are formed in part, of both a cylindrical first magnet provided in the upper floors hoistway, provided on the lower floors hoistway A first reed switch that is disposed opposite to the first magnet and that operates when a horizontal displacement with respect to the first magnet exceeds a first predetermined value; and a cylindrical second provided in the lower layer hoistway A second magnet disposed in the upper layer hoistway and facing the second magnet and operating when a horizontal displacement relative to the second magnet exceeds a second predetermined value different from the first predetermined value ; Provided with reed switch It is.

  The elevator hoistway deviation detection device of the seismic isolation building according to the present invention has a simple configuration and prevents the deviation detection accuracy between the lower and upper hoistway from being deteriorated due to dust or dirt. This has the effect of ensuring the control when the elevator is abnormal at the time of detecting the deviation between the two. Further, the elevator can be controlled in the first abnormality by the operation of the first reed switch, and the elevator can be controlled in the second abnormality by the operation of the second reed switch. As a result, the elevator can be appropriately controlled in response to the occurrence of the deviation between the two, eliminating the excessive abnormality treatment at the time of the deviation between the two, the secondary accompanying the excessive abnormality treatment This has the effect of preventing the occurrence of general problems. Furthermore, the first magnet, the first reed switch, and the like can be easily arranged in a narrow space, and there is an effect that the degree of freedom in installing the hoistway deviation detection device is improved.

Embodiment 1 FIG.
1 to 5 are diagrams showing an embodiment of the present invention. FIG. 1 is a longitudinal sectional view conceptually showing a location where a low-rise part hoistway and a high-rise part hoistway are opposed, and FIG. 2 is no hoistway shift. FIG. 3 is a diagram showing the situation of the first magnet and the first reed switch in FIG. 1, FIG. 3 is a diagram showing the situation of the first magnet and the first reed switch in FIG. 1 when a hoistway shift occurs, and FIG. FIG. 5 is a graph corresponding to FIG. 1 when a hoistway shift occurs.

  In the figure, although not shown, a high-rise building part is provided on a low-rise building part via a seismic isolation device. And the low-rise part hoistway 1 of an elevator is provided in the low-rise part of a building, and the high-rise part hoistway 2 arrange | positioned in series with the low-rise part hoistway 1 is provided in the high-rise part of a building. Also, a cylindrical first magnet 3 is provided in the high layer hoistway 2 with the N pole facing down, and the first reed switch 4 faces the lower layer hoistway 1 via the gap C. Is provided.

  Further, a cylindrical second magnet 5 is provided on the lower layer hoistway 1 with the north pole facing upward, and the second reed switch 6 is opposed to the upper layer hoistway 2 with the gap C interposed therebetween. Is provided. Magnetic field lines 7 are generated from the first magnet 3 and the like, and an operation curve 8 and a return curve 9 are formed as shown in FIG. In the state where there is no horizontal displacement between both the lower layer hoistway 1 and the higher layer hoistway 2, the first magnet 3 and the first reed switch 4 are on one vertical line as shown in FIG. The second magnet 5 and the second reed switch 6 are arranged on one vertical line.

  The first reed switch 4 is not affected by the magnetic force of the second magnet 5, and the second reed switch 6 is not affected by the magnetic force of the first magnet 3. 6 are arranged apart from each other in the horizontal direction. The first reed switch 4 operates when a horizontal deviation occurs between the two and exceeds a first predetermined value, and a horizontal deviation occurs between the two and the first predetermined value. The second reed switch 6 operates when the second predetermined value is also exceeded.

  In the elevator hoistway deviation detecting device of the base-isolated building configured as described above, when there is no horizontal deviation between the two, for example, as shown in FIG. 7 passes through one terminal of the first reed switch 4 and reaches the S pole of the first magnet 3 through an internal contact portion. In this state, the contact of the first reed switch 4 is closed.

  Further, when a horizontal shift occurs between the two, for example, as shown in FIG. 3, the magnetic field lines 7 coming out from the N pole of the first magnet 3 do not pass through the inside of the first reed switch 4. 3 S poles. Therefore, in this state, the contact of the first reed switch 4 is changed from the closed state to the open state, and the occurrence of the horizontal deviation between the two is detected. Moreover, since the cylindrical first magnet 3 and the second magnet 5 are provided, the magnetic force is generated without being biased in all directions in the horizontal direction.

  For this reason, there is no difference in the operation of the first reed switch 4 due to the displacement of the magnetic force lines 7 of the first magnet 3, for example, depending on the generation direction of the horizontal deviation between the two. Therefore, it is possible to prevent malfunction of the first reed switch 4 due to the direction of occurrence of the horizontal deviation between them, and to obtain a hoistway deviation detection device with high operational reliability. Further, for example, by arranging the central axes of the first magnet 3 and the first reed switch 4 so as to coincide with each other, the displacement can be detected with the same accuracy in all directions in the horizontal direction where the deviation occurs between the two, and the operation reliability can be improved. A high hoistway deviation detection device can be obtained.

  Note that there is a difference in the operation of the first reed switch 4 or the like, and when the first reed switch 4 is operated when a horizontal shift occurs between the two and exceeds a first predetermined value, FIG. As shown, the return curve 9 is formed inside the operation curve 8. When a displacement of the displacement amount A (X) or the displacement amount B (Y) occurs in the horizontal direction shown in FIG. 5 between the two, the displacement amount A (X) or the displacement amount B (Y) The amount of displacement is such that the reed switch 4 operates and the second reed switch 6 does not operate.

  In the first reed switch 4, the magnetic force lines 7 of the first magnet 3 reach the S pole of the first magnet 3 without passing through the inside of the first reed switch 4. Therefore, in this state, the contact of the first reed switch 4 is opened from the closed state, the first reed switch 4 is operated, and it is detected that a horizontal shift has occurred between the two and the first predetermined value has been exceeded. The In the second reed switch 6, the magnetic force lines 7 of the second magnet 5 pass through the second reed switch 6 and reach the S pole of the second magnet 5.

  Therefore, in this state, the contact of the second reed switch 6 remains closed, the second reed switch 6 is inoperative, and no horizontal shift is detected between the two. When the horizontal displacement between the two increases further than the state shown in FIG. 5, the magnetic field lines 7 of the second magnet 5 in the second reed switch 6 do not pass through the second reed switch 6. To the S pole. As a result, the contact of the second reed switch 6 is opened from the closed state, the second reed switch 6 is operated, and a larger value than the first predetermined value in the horizontal direction is generated between the two and exceeds the second predetermined value. Is detected.

  When the first reed switch 4 is operated due to a horizontal deviation between the two, that is, when the first predetermined value is exceeded, a control device (not shown) operates to drive the elevator at a low speed, etc. The first abnormality control is performed. Further, when the second reed switch 6 operates due to further increase in horizontal deviation between the two, that is, when the second predetermined value is exceeded, the control device (not shown) operates to operate the elevator. Control at the time of the second abnormality such as a pause is performed.

  A first magnet 3 is provided in the high layer hoistway 2, and a first reed switch 4 is provided in the lower layer hoistway 1 so as to face the first magnet 3. A second magnet 5 is provided in the lower layer hoistway 1, and a second reed switch 6 is provided in the upper layer hoistway 2 so as to face the second magnet 5. The first reed switch 4 is not affected by the magnetic force of the second magnet 5, and the second reed switch 6 is in a position not affected by the magnetic force of the first magnet 3. 6 are arranged apart from each other.

  As a result, it is possible to prevent the accuracy of the deviation detection between the two from being lowered due to dust or dirt, etc., and to control the elevator operation when the deviation is detected. Can do. Therefore, the occurrence of an abnormal situation due to the deviation between the two can be prevented in advance. In addition, the first magnet 3, the first reed switch 4, and the like can be easily arranged in a narrow space, and the degree of freedom of installation of the hoistway deviation detection device can be improved.

  The first reed switch 4 controls the elevator when the first abnormality occurs, and the second reed switch 6 controls the elevator when the second abnormality occurs. Accordingly, the elevator is appropriately controlled in response to the occurrence of the deviation between the two, the excessive abnormality treatment at the time of the deviation between the two is eliminated, and the secondary associated with the excessive abnormality treatment Occurrence of general problems can be prevented.

  Furthermore, the two of the first magnet 3 and the second magnet 5 approach each other due to the occurrence of a shift between the two. However, the first magnet 3 is provided in the high layer hoistway 2 with the N pole facing down, and the second magnet 5 is provided in the low layer hoistway 1 with the N pole facing up. That is, since the two persons are installed in a posture in which the same poles face each other, when the two persons approach each other due to the occurrence of a deviation between the two, the two persons repel each other, and thus the two persons can be prevented from colliding with each other. Damage due to collision.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Embodiment 1 of this invention, and is a longitudinal cross-sectional view which shows notionally the opposing location of a low-rise part hoistway and a high-rise part hoistway. The figure which shows the condition of the 1st magnet in FIG. 1, and a 1st reed switch when there is no hoistway deviation. The figure which shows the condition of the 1st magnet in FIG. 1, and a 1st reed switch when a hoistway deviation generate | occur | produces. The graph explaining operation | movement of a reed switch. FIG. 1 is a view corresponding to FIG. 1 when a hoistway displacement occurs.

Explanation of symbols

  1 Low layer hoistway, 2 High layer hoistway, 3 First magnet, 4 First reed switch, 5 Second magnet, 6 Second reed switch.

Claims (2)

A low-rise hoistway formed in the low-rise building ,
Is formed on the upper floors of the building, which is provided through the seismic isolation device on the lower floors, and the upper floors hoistway disposed in the lower floors hoistway series,
A columnar first magnet provided in the high-rise part hoistway ;
A first reed switch that is provided in the lower layer hoistway and is disposed to face the first magnet, and that operates when a horizontal displacement with respect to the first magnet exceeds a first predetermined value;
A columnar second magnet provided in the lower layer hoistway ;
A second, which is provided in the high-rise part hoistway and is arranged to face the second magnet, and operates when a horizontal displacement with respect to the second magnet exceeds a second predetermined value different from the first predetermined value. A reed switch ,
Elevator hoistway deviation detector for seismically isolated buildings with 2. The elevator hoistway deviation detecting device for a seismic isolation building according to claim 1 , wherein the first magnet and the second magnet are arranged so that the same poles face each other.

Images