JP7615664B2 - Judging device - Google Patents

Description

This disclosure relates to a determination device used in elevators.

As described in Patent Document 1, in elevators, a suspension band is attached to the counterweight as a countermeasure against earthquakes. The device described in Patent Document 1 is used to determine whether or not there is enough space to attach the suspension band.

JP 2018-34987 A

The device described in Patent Document 1 has a measuring body that is coated with paint. If paint adheres to equipment installed in the elevator, the equipment may break down, and so the device described in Patent Document 1 is difficult to handle.

The present disclosure has been made to solve the problems described above. The purpose of the present disclosure is to provide an easy-to-use determination device that is used to determine whether or not space is available for installing equipment on the moving body of an elevator.

The determination device according to the present disclosure comprises a main body that is detachable from a moving body that moves in an elevator hoistway, and a detection body that is supported by the main body and held at a detection position by the main body with the main body fixed to the moving body. The moving body is a counterweight that moves in a direction opposite to the direction in which the elevator car moves. The counterweight comprises an adjustment weight and a frame that supports the adjustment weight. The main body is detachable from the frame. The detection body held at the detection position extends horizontally from the main body. When the detection body receives a force from above while held at the detection position, it displaces downward and is held by the main body in the position after displacement.

The determination device according to the present disclosure comprises a main body that is detachable from a moving body that moves in an elevator hoistway, and a detection body that is supported by the main body and held at a detection position by the main body with the main body fixed to the moving body . The detection body held at the detection position extends horizontally from the main body. When the detection body receives a force from above while held at the detection position , it displaces downward and is held by the main body at the position after displacement. The detection body comprises a support part supported by the main body, and a detection part provided on the support part such that the distance that the detection body protrudes horizontally from the main body is variable.

The determination device according to the present disclosure is easy to use. By using the determination device, it is possible to easily determine whether or not space is available for installing equipment on the elevator's moving body.

FIG. 1 illustrates an example of an elevator device. FIG. 13 is a diagram showing an example of a counterweight. FIG. 1 is a top view of the counterweight. FIG. 2 is a diagram illustrating an example of a determination device in the first embodiment. 5 is a view showing a cross section taken along the line CC in FIG. 4. 10 is a flowchart showing an example of a determination operation using the determination device. FIG. 13 is a plan view showing an example of a judging device attached to a counterweight. FIG. 8 is a view of the judging device attached to the counterweight as viewed from the direction D shown in FIG. 7. FIG. 2 is a diagram for explaining the function of the determination device. FIG. 2 is a diagram for explaining the function of the determination device. FIG. 13 is a diagram showing another example of a determination device. FIG. 13 is a diagram showing another example of a determination device. FIG. 13 is a diagram showing another example of a determination device. FIG. 13 is a diagram showing another example of a determination device. 15 is a view of the determination device as seen from the direction F shown in FIG. 14.

A detailed explanation will be given below with reference to the drawings. Duplicate explanations will be simplified or omitted as appropriate. In each drawing, the same reference numerals indicate the same or corresponding parts.

Embodiment 1.
Fig. 1 is a diagram showing an example of an elevator apparatus. First, the elevator apparatus will be described with reference to Fig. 1. The elevator apparatus includes a car 1 and a counterweight 2. The car 1 moves up and down in a hoistway 3. The counterweight 2 moves up and down in the hoistway 3. The car 1 and the counterweight 2 are suspended in the hoistway 3 by a main rope 4. The counterweight 2 moves in a direction opposite to the direction in which the car 1 moves. The car 1 and the counterweight 2 are examples of moving bodies that move in the hoistway 3.

The main rope 4 is wound around the hoist 5. The car 1 is driven by the hoist 5. The hoist 5 is controlled by a control device 6. Figure 1 shows an example in which the hoist 5 and the control device 6 are installed in a machine room 7 above the hoistway 3. The hoist 5 and the control device 6 may be installed in the hoistway 3. When the hoist 5 is installed in the hoistway 3, the hoist 5 may be installed at the top of the hoistway 3 or in the pit of the hoistway 3.

Figure 2 is a diagram showing an example of a counterweight 2. The counterweight 2 includes a counterweight frame 8 and an adjustment weight 9. The adjustment weight 9 is a weight for adjusting the overall weight of the counterweight 2. The counterweight 2 includes a large number of adjustment weights 9. The adjustment weights 9 are supported by the counterweight frame 8. The counterweight frame 8 is in the shape of a square ring. The counterweight frame 8 includes an upper frame 10, a lower frame 11, a vertical frame 12, and a vertical frame 13.

In the example shown in FIG. 2, a pair of suspension frame bands 14 are provided on the counterweight 2. The suspension frame bands 14 are reinforcing members provided to prevent the adjustment weight 9 from falling off due to the counterweight frame 8 expanding when a lateral force is received during an earthquake. The suspension frame bands 14 can prevent the adjustment weight 9 from coming off the counterweight frame 8 during an earthquake. The suspension frame bands 14 are provided between the vertical frames 12 and 13. When the counterweight 2 is viewed from above, the pair of suspension frame bands 14 are arranged to surround the counterweight 2.

The sling band 14 is attached to the counterweight 2 of an existing elevator system as an earthquake countermeasure for that elevator system. However, existing elevator systems are not designed with the assumption that the sling band 14 will be attached to the counterweight 2. For this reason, when attaching the sling band 14 to the counterweight 2, elevator maintenance personnel must determine whether or not there is sufficient space to attach the sling band 14 before attaching it. Maintenance personnel attach the sling band 14 to the counterweight 2 only if they can confirm that the space is secured.

Figure 3 is a view of the counterweight 2 from above. Figure 3 shows the counterweight 2 before the suspension frame band 14 is attached. In the example shown in Figure 3, the counterweight 2 is placed between the car 1 and the wall 3a that forms the elevator shaft 3 in a plan view.

The maintenance worker checks that there are no obstacles in area A shown in FIG. 3 over the range in which the counterweight 2 moves. For example, distance L1 = 30 mm, and distance L2 = 40 mm. Note that if there are obstacles in area A, most of the obstacles exist between the counterweight 2 and the car 1, or between the counterweight 2 and the wall 3a. For example, equipment and components attached to the car 1 could be obstacles. Equipment and components attached to the wall 3a could be obstacles. The wall 3a itself could also be an obstacle.

Figure 4 is a diagram showing an example of the determination device 20 in the first embodiment. Figure 5 is a diagram showing a cross section taken along line C-C in Figure 4. The maintenance worker performs the above determination work using the determination device 20. The determination device 20 includes a main body 21 and a detection body 22.

The main body 21 is detachable from the counterweight 2. The adjustment weight 9 of the counterweight 2 is stacked on the lower frame 11. It is difficult to attach the judgment device 20 to the stacked adjustment weights 9. For this reason, it is preferable that the main body 21 is detachable from the counterweight frame 8. In the example shown in Figures 4 and 5, the main body 21 includes an adsorption portion 23, a main body portion 24, a holding portion 25, and a holding portion 26.

As an example, the adhesion portion 23 is a magnet that can be attracted to the counterweight frame 8. The main body 21 may be detachable from the counterweight frame 8 by means other than adhesion. The main body 24 is a rod-shaped member with a rectangular cross section. The adhesion portion 23 is provided on the surface 24a of the main body 24. The holding portion 25 and the holding portion 26 are provided on the surface 24b of the main body 24. The surface 24b faces in the opposite direction to the direction in which the surface 24a faces. A through hole 25a is formed in the holding portion 25. A through hole 26a is formed in the holding portion 26. The through holes 25a and 26a are formed so as to be parallel to the longitudinal direction of the main body 24. The through holes 25a and 26a are formed in a straight line.

The detection body 22 is supported by the main body 21 so as to be displaceable relative to the main body 21. In the example shown in Figures 4 and 5, the detection body 22 includes a detection portion 27, an axis 28, and an axis 29.

The detection unit 27 is plate-shaped. The shafts 28 and 29 are provided on the detection unit 27. The shafts 28 and 29 are arranged parallel to the longitudinal direction of the detection unit 27. The shafts 28 and 29 are also arranged in a straight line. The shaft 28 passes through the through hole 25a. The shaft 29 passes through the through hole 26a. This allows the detection body 22 to be rotatably supported relative to the main body 21.

If no external force acts on the detection body 22, the detection body 22 will not be displaced relative to the main body 21. If an external force acts on the detection body 22 from a specific direction, the detection body 22 will be displaced relative to the main body 21. Figures 4 and 5 show an example in which the above function is achieved by fitting the shaft 28 into the through hole 25a and the shaft 29 into the through hole 26a. As another example, the holding part 25 may be provided with a mechanism for adjusting the force with which the shaft 28 is held. The holding part 26 may be provided with a mechanism for adjusting the force with which the shaft 29 is held.

Next, the judgment operation using the judgment device 20 will be described in detail. FIG. 6 is a flow chart showing an example of the judgment operation using the judgment device 20. An elevator maintenance worker first attaches the judgment device 20 to the counterweight 2 (S101). In S101, the maintenance worker first stands on top of the car 1 while holding the judgment device 20. Next, the maintenance worker moves the car 1 to a specific intermediate height. The intermediate height is a height at which the maintenance worker can attach the judgment device 20 to the counterweight 2 from above the car 1. When the maintenance worker stops the car 1 at the intermediate height, he attaches the judgment device 20 to the counterweight 2.

Figure 7 is a plan view showing an example of the determination device 20 attached to the counterweight 2. Figure 8 is a view of the determination device 20 attached to the counterweight 2 from the direction D shown in Figure 7. Figures 7 and 8 show an example in which the determination device 20 is attached to the surface 10a of the upper frame 10. For example, the surface 10a faces the wall 3a.

In the example shown in Figures 7 and 8, the suction portion 23 is suctioned to the surface 10a of the upper frame 10, thereby fixing the determination device 20 to the counterweight frame 8. In S101, the maintenance person positions the determination device 20 so that the tip of the detection portion 27 coincides with the boundary of area A. That is, the maintenance person positions the determination device 20 so that the distance by which the determination device 20 protrudes horizontally from the counterweight 2 in a plan view is distance L1. Note that it is preferable that the width W of the detection portion 27 coincides with the width of area A. However, the width W does not have to coincide completely with the width of area A, as shown in Figure 7.

As shown in Figures 7 and 8, when the main body 21 is fixed to the counterweight 2, the detection body 22 is held at the detection position by the main body 21. The detection position is a position for detecting an obstacle present in the area A. The detection body 22 held at the detection position extends horizontally from the main body 21. Specifically, the detection body 22 is arranged horizontally.

Next, the maintenance worker uses an operation terminal (not shown) provided on the car 1 to move the car 1 back and forth (S102). For example, the maintenance worker attaches the judgment device 20 to the counterweight 2 as shown in Figures 7 and 8, and then moves the car 1 upward and stops the car 1 at the platform on the top floor. This causes the counterweight 2 to move downward and stop at the bottom position of its movable range. Next, the maintenance worker moves the car 1 downward and stops the car 1 at the platform on the bottom floor. This causes the counterweight 2 to move upward and stop at the top position of its movable range. Next, the maintenance worker moves the car 1 upward and stops the car 1 again at the above-mentioned intermediate height.

When the maintenance worker stops the car 1 again at the intermediate height in S102, he checks whether the detection body 22 has been displaced from the detection position (S103). Figures 9 and 10 are diagrams for explaining the function of the determination device 20. Figures 9 and 10 correspond to the view of the determination device 20 attached to the counterweight 2 from the direction D shown in Figure 7.

Figure 9 shows an example in which the counterweight 2 is moving upward. Figure 9 shows an example in which part of an obstacle 15 provided on a wall 3a is present in area A in a plan view. In this case, the counterweight 2 moves upward, causing the detection body 22 of the assessment device 20 to collide with the obstacle 15 from below. The detection body 22 is held in the detection position by the main body 21 until just before it collides with the obstacle 15. When the detection body 22 receives a force from above while held in the detection position, it rotates around the axis 28 and the axis 29 and is displaced downward. The detection body 22 is held by the main body 21 in the position after the displacement, i.e., with its tip lowered below the detection position.

Figure 10 shows an example in which the counterweight 2 has moved downward. Like Figure 9, Figure 10 also shows an example in which part of the obstacle 15 is in area A in plan view. In this case, the counterweight 2 moves downward, causing the detection body 22 of the assessment device 20 to collide with the obstacle 15 from above. The detection body 22 is held in the detection position by the main body 21 until just before it collides with the obstacle 15. When the detection body 22 receives a force from below while held in the detection position, it rotates around the axis 28 and the axis 29 and displaces upward. The detection body 22 is held by the main body 21 in the position after displacement, i.e., with its tip raised above the detection position.

Note that while Figures 9 and 10 show an example in which the determination device 20 is attached to the surface 10a of the upper frame 10, in reality, the determination device 20 is also attached to the surface 10b of the upper frame 10. The surface 10b is a surface facing in the opposite direction to the surface 10a. In other words, the surface 10b faces the direction of the car 1 in a plan view.

In this way, when the obstacle 15 comes into contact with the detection body 22 while the counterweight 2 is reciprocating in S102, the detection body 22 is displaced from the detection position. If the detection body 22 remains positioned at the detection position when the car 1 stops again at the above-mentioned intermediate height, the maintenance person judges No in S103. In such a case, the maintenance person judges that there is enough space to attach the suspension frame band 14. If the maintenance person judges No in S103, he removes the judgment device 20 from the counterweight 2 and then attaches the suspension frame band 14 to the counterweight 2 (S104).

On the other hand, if the detection body 22 has been displaced from the detection position when the car 1 stops again at the above-mentioned intermediate height, the maintenance person judges Yes in S103. In such a case, the maintenance person determines that there is not enough space to attach the suspension frame band 14.

In the example shown in this embodiment, it is possible to determine whether or not space is secured for attaching the hanging frame band 14 to the counterweight 2 simply by checking the position of the detection body 22 after moving the counterweight 2. In other words, the above determination can be easily made by using the determination device 20. In addition, the determination device 20 does not use paint or the like as in conventional devices. Therefore, it is easy to handle.

In the example shown in FIG. 6, car 1 is moved back and forth in S102, but this is just one example. For example, if it is possible to attach the determination device 20 in the pit of the elevator 3 and to remove the determination device 20 at the top of the elevator 3, car 1 may be moved in one direction in S102 from the platform on the top floor to the platform on the bottom floor.

Below, other examples in which the determination device 20 can be used are described. If possible, the determination device 20 may be used in combination with the following examples.

Fig. 11 is a diagram showing another example of the determination device 20. Fig. 11 is a diagram corresponding to Fig. 8. In the example shown in Fig. 11, the determination device 20 includes a main body 21 and a detection body 22. The main body 21 includes an adsorption portion 23, a main body portion 24, a positioning portion 30, a holding portion 25, and a holding portion 26. The detection body 22 includes a detection portion 27, an axis 28, and an axis 29.

In the example shown in FIG. 11, the suction portion 23 provided on the main body portion 24 is suctioned to the upper surface 10c of the upper frame 10. That is, in the example shown in FIG. 11, the main body 21 is detachable from the upper surface of the counterweight frame 8. The positioning portion 30 is provided on the main body portion 24. The positioning portion 30 extends downward from the main body portion 24 when the suction portion 23 is suctioned to the upper surface 10c. The positioning portion 30 is a member for positioning the detection body 22 by facing the surface 10a or surface 10b of the upper frame 10. For example, when the suction portion 23 is suctioned to the upper surface 10c, the detection body 22 is placed at the detection position by contacting the positioning portion 30 with the surface 10a.

The holding portion 25 and the holding portion 26 are provided on the main body portion 24. The holding portion 25 and the holding portion 26 may be provided on the positioning portion 30. The holding portion 25, the holding portion 26, and the detection body 22 are similar to the examples shown in Figs. 4 and 5. The detection body 22 is rotatably supported on the main body 21 via shafts 28 and 29 that extend horizontally with the main body 21 fixed to the upper surface 10c of the upper frame 10. Also, similar to the examples shown in Figs. 9 and 10, when the detection body 22 receives a force from above or below while held in the detection position, it displaces according to the direction in which the force is received, and is held by the main body 21 in the position after displacement.

Fig. 12 is a diagram showing another example of the determination device 20. Fig. 12 is a diagram corresponding to Fig. 7. In the example shown in Fig. 12, the determination device 20 includes a main body 21 and a detection body 22. The main body 21 includes an adsorption portion 23, a main body portion 24, a positioning portion 30, a holding portion 25, and a holding portion 26. The detection body 22 includes a detection portion 27, an axis 28, and an axis 29.

In the example shown in FIG. 12, the suction portion 23 provided on the main body 24 is suctioned to the surface 13a of the vertical frame 13. The surface 13a faces the guide rail 16 for guiding the movement of the counterweight 2. That is, in the example shown in FIG. 12, the main body 21 is detachable from the side of the counterweight frame 8.

The positioning portion 30 is provided on the main body portion 24. The positioning portion 30 extends laterally from the main body portion 24 when the suction portion 23 is attached to the surface 13a. The positioning portion 30 is a member for positioning the detection body 22 by facing the surface 13b of the vertical frame 13 that faces the wall 3a side or the surface that faces the car 1 side in a plan view. For example, when the suction portion 23 is attached to the surface 13a, the detection body 22 is placed at the detection position by bringing the positioning portion 30 into contact with the surface 13b.

The holding portion 25 and the holding portion 26 are provided on the positioning portion 30. The holding portion 25, the holding portion 26, and the detection body 22 are similar to the examples shown in Figs. 4 and 5. The detection body 22 is rotatably supported by the main body 21 via shafts 28 and 29 that extend horizontally with the main body 21 fixed to the surface 13a of the vertical frame 13. In addition, similar to the examples shown in Figs. 9 and 10, when the detection body 22 receives a force from above or below while held in the detection position, it displaces according to the direction in which the force is received, and is held by the main body 21 in the position after displacement.

Fig. 13 is a diagram showing another example of the determination device 20. Fig. 13 is a diagram corresponding to Fig. 4. In the example shown in Fig. 13, the determination device 20 includes a main body 21 and a detection body 22. The main body 21 is similar to the examples shown in Figs. 4 and 5. The main body 21 may be similar to the example shown in Fig. 11. The main body 21 may be similar to the example shown in Fig. 12.

The example shown in FIG. 13 differs from the examples described above in that the detection body 22 is extendable. The detection body 22 includes a support portion 31, a detection portion 27, an axis 28, an axis 29, and a bolt 32.

The support portion 31 is plate-shaped. The shafts 28 and 29 are provided on the support portion 31. The shafts 28 and 29 are arranged parallel to the longitudinal direction of the support portion 31. The shafts 28 and 29 are also arranged in a straight line. The shaft 28 passes through the through hole 25a. The shaft 29 passes through the through hole 26a. This allows the support portion 31 to be rotatably supported relative to the main body 21.

The detection unit 27 is plate-shaped. The detection unit 27 is provided on the support unit 31 so that the distance by which the detection body 22 protrudes horizontally from the main body 21 when the main body 21 is fixed to the counterweight 2 is variable. For example, the detection unit 27 is arranged so as to overlap the support unit 31. The detection unit 27 is also formed with a long hole 27a having a longitudinal direction perpendicular to the axis 28 and the axis 29. The bolt 32 passes through the long hole 27a and is screwed into a screw hole (not shown) formed in the support unit 31. When the bolt 32 is loosened, the detection unit 27 can be moved relative to the support unit 31 in the direction indicated by the arrow E in FIG. 13. The detection unit 27 is fixed to the support unit 31 by tightening the bolt 32.

For example, consider a case where two types of suspension frame bands 14 are prepared, and if there are no obstacles in both areas A and B shown in FIG. 3, the suspension frame bands 14 can be attached to the counterweight 2. For example, L3 = 40 mm. In this case, the maintenance worker performs the above-mentioned determination work using the determination device 20 shown in FIG. 13. At this time, the maintenance worker positions the determination device 20 so that the tip of the detection unit 27 coincides with the boundary of area B (L3 = 40 mm). Then, if the maintenance worker can determine No in S103, he attaches a high-strength suspension frame band 14 to the counterweight 2 in S104.

On the other hand, if the maintenance person judges Yes in S103, he/she repositions the judgment device 20 so that the tip of the detection unit 27 coincides with the boundary of area A (L1 = 30 mm) and performs the above-mentioned judgment work again. Then, if the maintenance person judges No in S103, he/she attaches the normal suspension frame band 14 to the counterweight 2 in S104.

Figure 14 is a diagram showing another example of the determination device 20. Figure 15 is a diagram showing the determination device 20 as viewed from the direction F shown in Figure 14. Figure 14 is a diagram corresponding to Figure 4. Figure 15 is a diagram corresponding to Figure 5. In the examples shown in Figures 14 and 15, the determination device 20 includes a main body 21, a detection body 22, and a connecting body 33.

The main body 21 is detachable from the counterweight 2. It is preferable that the main body 21 is detachable from the counterweight frame 8. In the example shown in Figures 14 and 15, the main body 21 includes an adsorption portion 23, a main body portion 24, a holding portion 34, and a holding portion 35.

As an example, the adhesion portion 23 is a magnet that can be attached to the counterweight frame 8. The main body 21 may be detachable from the counterweight frame 8 by means other than adhesion. The main body 24 is a rod-shaped member with a rectangular cross section. The adhesion portion 23 is provided on the surface 24a of the main body 24. The holding portion 34 and the holding portion 35 are provided on the surface 24b of the main body 24.

The detection body 22 is supported by the main body 21. In the example shown in Figs. 14 and 15, the detection body 22 is plate-shaped. The detection body 22 is supported by the main body 21 by one edge 22a being sandwiched between the holding portion 34 and the holding portion 35. The detection body 22 supported by the main body 21 extends from the edge 22a in the direction in which the surface 24b faces.

If no external force acts on the detection body 22, the detection body 22 will remain held by the main body 21. On the other hand, if an external force acts on the detection body 22 from a specific direction, the detection body 22 will come off the main body 21. In other words, the force with which the holding parts 34 and 35 clamp the detection body 22 is preset so that the detection body 22 will come off the main body 21 when an external force acts on the detection body 22 from a specific direction.

The connector 33 connects the main body 21 and the detector 22. The connector 33 prevents the detector 22 from falling when it becomes detached from the main body 21.

In the examples shown in Figures 14 and 15, when the main body 21 is fixed to the counterweight 2, the detection body 22 is held in the detection position by the main body 21. The detection body 22 held in the detection position extends horizontally from the main body 21. Specifically, the detection body 22 is arranged horizontally. When the detection body 22 receives a force from above while held in the detection position, it comes off the main body 21 as shown in Figure 15. Similarly, when the detection body 22 receives a force from below while held in the detection position, it comes off the main body 21 as shown in Figure 15. The detection body 22 that comes off the main body 21 is held in a state suspended by the connecting body 33.

When using the determination device 20 shown in Figures 14 and 15, the maintenance person determines in S103 whether the detection body 22 has been detached from the main body 21. If the detection body 22 is still held in the main body 21, the maintenance person determines No in S103. If the detection body 22 has been detached from the main body 21, the maintenance person determines Yes in S103.

In each of the above examples, the maintenance worker brings the determination device 20 to the site each time the above determination work is performed. For this reason, it is desirable that the determination device 20 be easy to transport. For example, in the example shown in FIG. 4, the detection unit 27 may be detachable, extendable, or foldable, and a main body unit 24 and an adsorption unit 23 may be provided for each of the holding units 25 and 26.

In addition, in this embodiment, an example has been described in which the determination device 20 is attached to the counterweight 2. This is just one example. When attaching equipment or components to the car 1, a device similar to the determination device 20 may be used to determine whether or not space for attachment is secured.

1 cage, 2 counterweight, 3 elevator shaft, 3a wall, 4 main rope, 5 hoist, 6 control device, 7 machine room, 8 counterweight frame, 9 adjustment weight, 10 upper frame, 10a-10b surface, 10c upper surface, 11 lower frame, 12-13 vertical frame, 13a-13b surface, 14 suspension frame band, 15 obstacle, 16 guide rail, 20 judgment device, 21 main body, 22 detection body, 22a edge, 23 suction portion, 24 main body, 24a-24b surface, 25-26 holding portion, 25a-26a through hole, 27 detection portion, 27a long hole, 28-29 Shaft, 30 Positioning part, 31 Support part, 32 Bolt, 33 Connecting body, 34-35 Holding part

Claims (6)

A main body that is detachable from a moving body that moves in the elevator shaft;
a detection body supported by the main body and held at a detection position by the main body in a state in which the main body is fixed to the moving body;
Equipped with
The moving body is a counterweight that moves in a direction opposite to the direction in which the elevator car moves,
The counterweight is
Adjustment weight and
A frame for supporting the adjusting weight;
Equipped with
The main body is detachable from the frame,
The detection body held at the detection position extends horizontally from the main body,
The detection body is a determination device that displaces downward when a force is applied from above while held at the detection position, and is held by the main body in the position after displacement. The determination device according to claim 1, wherein the detection body is displaced upward when a force is applied from below while held at the detection position, and is held by the main body in the position after displacement. The determination device according to claim 1 or claim 2, wherein the detection body is rotatably supported on the main body via a horizontally extending shaft with the main body fixed to the moving body. The frame has a first side facing toward the car and a second side facing in a direction opposite to the direction in which the first side faces;
The body includes:
An adsorption portion that is adsorbed to an upper surface of the frame;
a positioning portion for positioning the detection body by facing the second side surface of the frame;
The determination device according to any one of claims 1 to 3, comprising: The detection body is
A support part supported by the main body;
a detection unit provided on the support unit so that a distance by which the detection body protrudes from the main body in a horizontal direction is variable;
The determination device according to any one of claims 1 to 4 , comprising: A main body that is detachable from a moving body that moves in the elevator shaft;
a detection body supported by the main body and held at a detection position by the main body in a state in which the main body is fixed to the moving body;
Equipped with
The detection body held at the detection position extends horizontally from the main body,
When the detection body is held at the detection position and receives a force from above, the detection body is displaced downward and is held by the main body at the position after the displacement.
The detection body is
A support part supported by the main body;
a detection unit provided on the support unit so that a distance by which the detection body protrudes from the main body in a horizontal direction is variable;
A judgment device comprising:

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