JP2005154065A - Lift - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lift of low cost for stopping a lifting body at a desired position. <P>SOLUTION: A balance shaft 11 is supported in a lift body 1 to be capable of making seesaw action, and a pulley 13 to change the direction of wire 3 fed from a take-up drum 16 into downward is provided on one axial end of it. On the other axial end, a holding part to hold an end 3a of the wire stretched along the pulley 13 and pulleys 21 and 22 in the lifting body 2 is provided. On the wire 3, a stopper is fixed to be applied to a hole edge of a wire inserting hole 23a in the lifting body 2 as feed quantity of the wire 3 becomes prescribed length to regulate feed of the wire 3 from the lifting body 2 toward the holding part side of the balance shaft 11. On the lift body 1, a switch 15 to generate a stop signal as the balance shaft 11 is inclined by a prescribed angle or more to push a lever 15a, and a stop device 17 to stop the take-up drum 16 based on the stop signal are provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a lifting device.

  2. Description of the Related Art Conventionally, a lifting device body that is provided with a winding device that winds and unwinds a suspension body and is fixed to a building structure, and a lifting body that is suspended up and down via a suspension body that is fed from the lifting device body. Is provided.

  Such a lifting device, for example, has a lighting fixture installed at a high place such as a chandelier or a spotlight attached to the lifting body, and the lifting body is lowered so that the maintenance of the lighting fixture can be performed in a low place. However, if the luminaire descends to the floor, the lamp replacement and cleaning of the luminaire must be bent and the workability is poor, so the lifting body can be placed at any position (height). It is required to stop.

  Therefore, conventionally, in order to stop the lifting body at an arbitrary position, a control device for controlling the lifting time of the lifting body is separately provided, and when the lowering time of the lifting body reaches a predetermined set time, the control device sets the winding device. By stopping the operation, the lifting body was stopped at an arbitrary position.

  In addition, a detection unit that detects the amount of suspension suspended from the winding device is provided inside the lifting device main body fixed to the building structure, and when the detection amount of the detection unit reaches a predetermined set value, the winding device In some cases, the lifting body is stopped at an arbitrary position by stopping the operation.

Also, two winding devices for winding and unwinding the suspension body and suspension bodies that are unwound from the two winding devices are hung inside the elevating device main body to change the direction of the suspension body 2 downward. Two pulleys, a shaft body provided with two pulleys at both ends, a biasing spring that biases the shaft body upward, and the shaft body is lowered downward against the biasing force of the biasing spring There has also been conventionally provided an elevating device that houses a switch for operating an operating body by a shaft body and suspends the elevating body with two hanging bodies (see, for example, Patent Document 1). In this lifting device, when the lifting body lands on the floor surface and the load applied to the suspended body disappears, the shaft body moves upward by the biasing force of the biasing spring and moves away from the switch operating body, and the signal from the switch The operation of the winding device was stopped by the input, and when the lifting body landed on the floor surface, the suspension body was not sent out from the winding device.
JP 2003312992 A

  Among the above-described lifting devices, the control device detects the lowering time of the lifting body and stops the lowering body when the lowering time reaches a predetermined set time. In the case of setting to 1, there is a problem that it is necessary to prepare as many control devices as the number of lifting devices, which increases the cost.

  In addition, in the lifting device that detects the amount of the suspended body sent out inside the lifting device main body and stops the winding device based on the detection amount of the detecting means, the setting is changed after the lifting device main body is attached. The setting work must be performed at a high place where the lifting device main body is attached, and a large-scale work such as providing a scaffold is required, so that the setting change work cannot be easily performed.

  Moreover, in the raising / lowering apparatus shown by the above-mentioned patent document 1, when the raising / lowering body lands on the floor surface, since the sending of the suspension body from the winding device is stopped, the raising / lowering body is moved to an arbitrary position ( (Height) could not be stopped.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a low-cost lifting device that can stop the lifting body at a desired position. In addition to the above object, an object of the invention of claims 3 and 4 is to provide an elevating device that can easily set the descent stop position.

  In order to achieve the above object, the invention of claim 1 comprises an elevating device main body fixed to a building structure, and an elevating body that is hung up and down freely through a hanging body fed out from the elevating device main body. In the lifting and lowering device, the lifting and lowering device main body is provided with winding means for winding and unwinding the suspension body, and a balance shaft that is supported so as to allow seesaw operation at an intermediate portion in the axial direction, and in the axial direction of the balance shaft. A holding body for holding the end of the hanging body on one side, and a first direction changing member for changing the direction of the hanging body downward by hanging the hanging body on the other side in the axial direction, respectively, are suspended from the winding means. Is suspended between the first direction changing member provided on the balance shaft and the second direction changing member provided on the elevating body and hung on the lifting body to change the direction of the hanging body upward. The rose A feed stop mechanism for holding the suspension body at the holding shaft and stopping the suspension body from being fed from the lifting / lowering body to the holding portion side of the balance shaft when the suspension body is fed out by a predetermined length from the winding means; An inclination that generates a stop signal to stop the winding means when the balance shaft is unbalanced by stopping the feeding of the suspension body and the balance shaft is tilted more than a predetermined angle from the state where the balance shaft is in equilibrium. A detection unit and a stop unit that stops the operation of the winding unit when a stop signal is input from the tilt detection unit are provided.

  According to a second aspect of the present invention, in the first aspect of the invention, the tilt detecting means is disposed in a range in which the balance shaft operates as a seesaw, and when the balance shaft is tilted by a predetermined angle or more, the operating body is operated by the balance shaft. It is characterized by comprising a switch for generating a stop signal.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the suspended body insertion hole for allowing the suspended body fed from the lifting device main body through the first direction changing member to pass through the surface of the elevated body. And a stopper larger than the suspended body insertion hole is attached to a position of the suspended body so as to come into contact with the hole edge of the suspended body insertion hole when the suspended body is fed out by a predetermined length. It is characterized by comprising a lifting body insertion hole and a stopper.

  According to a fourth aspect of the present invention, in the first or second aspect of the invention, a stop position that stops the feed of the suspension body by contacting the suspension body and a position that releases the suspension body by separating from the suspension body in the lifting body. When the suspended body is sent out from the lifting device main body, it moves gradually to the stop position side according to the feed amount, and moves to the stop position when the feed amount reaches a predetermined length. A suspended body pressing portion is provided, and the feed stop mechanism is configured by the suspended body pressing portion.

  As described above, according to the first aspect of the present invention, when the suspension body is fed from the winding means by a predetermined length, the suspension mechanism provided on the elevation body causes the suspension body to be suspended from the elevation body to the holding portion side of the balance shaft. Although the feeding of the body is stopped, the winding means continues to feed the suspension, so that the length of the suspension from the first pulley to the lifting body is the length of the suspension from the holding unit to the lifting body. Since it becomes longer than the length and more load is applied to the holding portion side of the balance shaft, the balance shaft is unbalanced and the balance shaft is tilted by a seesaw operation. When the balance shaft is tilted more than a predetermined angle from the state where the balance is maintained, the tilt detection means generates a stop signal, and the stop means stops the operation of the take-up means in response to the stop signal. When the lifting amount of the hanging body reaches a predetermined length, the lifting body can be stopped, and the lowering of the lifting body is stopped at a desired height before the lifting body reaches the floor surface. Can do. In addition, since the elevating body is provided with the feed stop mechanism, it is possible to set the descent stop position of the elevating body for each elevating apparatus, and it is not necessary to provide a separate control device, so that the cost is not increased. Furthermore, in the inventions of claims 3 and 4, since the lifting body provided with the feed stop mechanism descends downward, it is possible to set a length for stopping the suspension body delivery in a state where the lifting body is lowered. Therefore, there is an effect that the setting operation can be performed safely and easily.

Embodiments of the present invention will be described below with reference to the drawings.
(Embodiment 1)
Embodiment 1 of this invention is demonstrated based on FIGS. 1-3. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the direction of FIG. 1A, and the front of FIG. Therefore, the right end in FIG. 1B is the rear end.

  The lifting device can be lifted and lowered via a lifting device body 1 fixed to a building structure 5 such as a ceiling of a building via a mounting bracket 1a, and a wire 3 (hanging body) fed from the lifting device body 1. The lighting device 4 is attached to the lifting body 2 such as a chandelier or a spotlight.

  The lifting device body 1 includes a box-shaped case 10, and a winding drum 16 that winds and unwinds the wire 3 by being forwardly and reversely rotated by a motor (not shown) inside the case 10, and an intermediate portion in the axial direction is a fulcrum. The balance shaft 11 is supported by the portion 14 so that the seesaw is freely movable. Here, a winding means for winding and unwinding the wire 3 is configured by the winding drum 16, a motor for rotating the winding drum 16 forward and backward, and its drive circuit.

  An insertion hole (not shown) through which the wire 3 is inserted is formed in one (left end portion) of the balance shaft 11 in the axial direction, and a terminal 3a of the wire 3 is inserted into the insertion hole. The terminal 3 a of the wire 3 is held at the left end portion of the balance shaft 11 by the stopper 12 fixed to 3 a being locked to the hole edge of the insertion hole. Here, a holding portion that holds the terminal 3 a of the wire 3 is configured by the insertion hole provided in the left end portion of the balance shaft 11 and the stopper 12.

  Further, the other end (right end) of the balance shaft 11 in the axial direction is hooked with the wire 3 fed from the take-up drum 16 to change the direction of the wire 3 downward (first direction changing member). ) Is provided.

  Further, the lifting / lowering device body 1 is arranged in a range where the balance shaft 11 is operated as a seesaw. When the balance shaft 11 is tilted by a predetermined angle or more, the lever 15a (operating body) is pushed by the balance shaft 11 so that a winding means is provided. A switch 15 (tilt detection means) such as a micro switch that generates a stop signal for stopping, and a stop device 17 that stops a motor that rotates the winding drum 16 when the stop signal is input from the switch 15. It is stored. Needless to say, the winding means including the motor for rotating the winding drum 16 forward and backward and the drive circuit thereof may be provided with a stopping means for stopping the motor upon receiving a stop signal.

  Then, the wire 3 fed out from the winding drum 16 is wound around a pulley 13 provided on the balance shaft 11, the direction of the wire 3 is changed downward, and the case passes through the wire insertion hole 18 a provided on the lower surface of the case 10. 10 is pulled out.

  On the other hand, the elevating body 2 includes a box-shaped case 20, and a wire insertion hole 23 a for drawing the wire 3 drawn out from the wire insertion hole 18 a to the outside of the case 20 is formed on the upper surface of the case 20. Then, the wire 3 introduced into the case 20 through the wire insertion hole 23a is stretched around two pulleys 21 and 22 (second direction changing members) rotatably supported in the case 20. The direction of the wire 3 is changed upward, and after being pulled out of the case 20 from the wire insertion hole 23b provided on the upper surface of the case 20, the case passes through the wire insertion hole 18b provided on the lower surface of the case 10 of the lifting device body 1. 10 and is held at one end of the balance shaft 11. At this time, the pulleys 21 and 22 of the lifting body 2 over which the wire 3 is stretched rotate, so that the length of the wire 3 from the holding portion provided at one end of the balance shaft 11 to the pulley 22 and the balance shaft 11 The length of the wire 3 from the pulley 13 to the pulley 21 provided at the other end becomes substantially equal, and the load of the elevating body 2 is evenly applied to both ends of the balance shaft 11 so that the balance shaft 11 maintains a balance. It has become. While the balance shaft 11 is in balance, the lever 15a of the switch 15 is not operated by the balance shaft 11, so that a stop signal is not output from the switch 15, and the winding drum 16 is rotated in both forward and reverse directions by the motor. be able to. Then, when the winding drum 16 rotates in both forward and reverse directions, the wire 3 is wound or fed out by the winding drum 16, and the lifting body 2 is raised or lowered accordingly.

  By the way, the wire 3 fed out from the take-up take-up drum 16 is inserted into the case 20 through a wire insertion hole 23a provided on the upper surface of the case 20 of the elevating body 2, but as shown in FIG. 3, a stopper 24 larger than the wire insertion hole 23a is attached. The stopper 24 comes into contact with the hole edge of the wire insertion hole 23a when the wire 3 is fed out by a predetermined length from a state in which the elevating body 2 is at the highest position (this position is referred to as a lift stop position). Since the stopper 24 is in contact with the hole edge of the wire insertion hole 23a, the wire 3 can no longer enter the case 20, and the holding unit for the balance shaft 11 from the lifting body 2 The feeding of the wire 3 to the side is stopped. Here, the wire insertion hole 23a of the elevating body 2 and the stopper 24 constitute a feed stop mechanism.

  Thus, when the winding drum 16 is rotated by the motor and the wire 3 is fed out from the state where the lifting body 2 is stopped at the ascending stop position, the lifting body 2 is lowered according to the feeding of the wire 3. When the wire 3 is sent out a predetermined length from the ascending stop position, the stopper 24 fixed to the wire 3 comes into contact with the hole edge of the wire insertion hole 23a of the case 20, and the wire 3 is further moved into the case 20 The wire 3 is not sent out from the lifting body 2 to the holding portion side of the balance shaft 11. However, the winding drum 16 continues to feed the wire 3 thereafter, and the length of the wire 3 from the pulley 13 to the pulley 21 is longer than the length of the wire 3 from the holding portion side of the balance shaft 11 to the pulley 22. Therefore, the load applied to the holding portion side of the balance shaft 11 is increased, the balance of the balance shaft 11 is lost, and the balance shaft 11 is inclined to the left (indicated by an imaginary line in FIG. 1A). As shown). When the balance shaft 11 is tilted by a predetermined angle (predetermined angle exceeding the recoverable angle) from the state where the balance shaft 11 is kept in balance, the lever 15a of the switch 15 is pushed by the balance shaft 11, and the switch 15 stops. Since a stop signal is output to the device 17, the stop device 17 receives the stop signal, stops the rotation of the motor, stops the feeding of the wire 3 from the winding drum 16, and stops the lowering of the elevating body 2. .

  In this way, when the wire 3 is sent out by a predetermined length from the state where the lifting body 2 is stopped at the ascending stop position, the feeding operation of the wire 3 can be stopped, so that the lifting body 2 is placed on the floor surface. Before landing, the lowering of the elevating body 2 can be stopped at a desired height. Therefore, if the elevating body 2 is stopped at a height of about 1.5 m from the floor surface, for example, maintenance work such as lamp replacement and cleaning of the lighting fixture 4 held by the elevating body 2 can be performed without bending. , Workability is improved. Further, since the lifting body 2 and the lighting device 4 held by the lifting body 2 do not reach the floor surface, the floor surface can be prevented from being damaged, and the lighting device 4 is fragile such as a chandelier. Since the lighting fixture 4 does not land on the floor surface, the lifting body 2 can be lifted and lowered safely.

  Further, the wire insertion hole 23a provided in the elevating body 2 and the stopper 24 fixed to the wire 3 constitute a feed stop mechanism, so that the lowering stop position of the elevating body 2 can be set for each elevating device. Since there is no need to provide a control device, the cost is not increased, and the lifting body 2 provided with the feed stop mechanism is lowered, so that the wire 3 is sent out while the lifting body 2 is lowered. The length for stopping can be set, and it is not necessary to work at a high place, so that the setting work can be performed safely and easily. Therefore, it is possible to easily cope with the case where the lowering stop position is set higher because the obstacle layout is arranged on the lower side of the lifting device due to the layout change of the facility or the setting error is corrected.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS. In addition, since it is the same as that of the raising / lowering apparatus of Embodiment 1 except a feed stop mechanism, the same code | symbol is attached | subjected to a common component and the description is abbreviate | omitted.

  In the present embodiment, two pulleys 21 and 22 that hang the wire 3 introduced from the wire insertion hole 23a inside the box-shaped case 20 included in the lifting body 2 and convert the direction of the wire 3 upward are provided. A gear 25 is integrally provided on the rotating shaft 21a of one pulley 21 and a gear 26 that meshes with the gear 25 is disposed at an intermediate portion between the two pulleys 21 and 22. . Further, the shaft 27 of the gear 26 is integrally provided with a contact piece 28 disposed opposite to one side of the wire 3 (the lower side in FIG. 4B), and more distal than the contact piece 28 of the shaft 27. A pressing piece 29 (suspended body pressing portion) is provided which is screwed into a screw portion 27 a provided on the side portion and slides along the axial direction of the shaft 27 according to the rotation of the gear 26. The pressing piece 29 abuts the wire 3 from the opposite side of the abutting piece 28 and clamps the wire 3 between the abutting piece 28, thereby stopping the feeding of the wire 3 (FIG. 4B). A position indicated by an imaginary line) and a position where the wire 3 is released from and separated from the wire 3, and when the wire 3 is fed from the take-up drum 16, the stop position side according to the feed amount When the feed amount from the ascending stop position reaches a predetermined length, it moves to the stop position and regulates the feeding of the wire 3.

  Thus, when the winding drum 16 is rotated by the motor and the wire 3 is fed out from the state where the lifting body 2 is stopped at the ascending stop position, the lifting body 2 is lowered according to the feeding of the wire 3. At this time, the pulley 21 rotates according to the feed of the wire 3, and the rotation of the pulley 21 is transmitted to the shaft 27 through the gears 25 and 26, so that the pressing piece 29 slides along the shaft 27 in the direction approaching the wire 3. Moving. When the wire 3 is sent out a predetermined length from the ascending stop position, the pressing piece 29 moves to the stopping position, and the wire 3 is sandwiched between the pressing piece 29 and the contact piece 28. 3 is stopped, and the wire 3 is not sent from the lifting body 2 to the holding portion side of the balance shaft 11. However, the winding drum 16 continues to feed the wire 3 thereafter, and the length of the wire 3 from the pulley 13 to the pulley 21 is longer than the length of the wire 3 from the holding portion side of the balance shaft 11 to the pulley 22. Therefore, the load applied to the holding portion side of the balance shaft 11 is increased, the balance of the balance shaft 11 is lost, and the balance shaft 11 is inclined downward to the left. When the balance shaft 11 is tilted more than a predetermined angle from the state where the balance is maintained, the lever 15a of the switch 15 is pushed by the balance shaft 11, and a stop signal is output from the switch 15 to the stop device 17. In response to the stop signal, the stop device 17 stops the rotation of the motor, the feeding of the wire 3 from the winding drum 16 is stopped, and the lowering of the elevating body 2 is stopped.

  In this way, when the wire 3 is sent out by a predetermined length from the state where the lifting body 2 is stopped at the ascending stop position, the feeding operation of the wire 3 can be stopped. Before the lifting body 2 reaches the floor surface, the lowering of the lifting body 2 can be stopped at a desired height. Further, it is movably arranged between a stop position where the wire 3 is stopped by contacting the wire 3 and a position where the wire 3 is released after being separated from the wire 3, and the stop position side according to the feed amount of the wire 3. Since the feed stop mechanism is configured by the pressing piece 29 that moves to the stop position when the feed amount reaches a predetermined length, the lowering stop position of the lifting body 2 is set for each lifting device. Since it is possible to set and there is no need to provide a separate control device, the cost is not increased, and the lifting body 2 provided with the feed stop mechanism is lowered to the lower side, so that the lifting body 2 is lowered. The length for stopping the delivery of the wire 3 can be set, and it is not necessary to work at a high place, so that the setting work can be performed safely and easily.

  FIG. 5 is a view showing an example of a mechanism for adjusting the delivery amount (the lowering stop position of the elevating body 2). The tip of the case 20 is integrally formed with a rotating shaft 21a that pivotally supports the pulley 21. An operation knob 31 exposed to the outside from 20a is provided, and a position where the two gears 25 and 26 are engaged (position indicated by a solid line in the figure) and a position where the engagement of the gears 25 and 26 is released (indicated by an imaginary line in the figure) And the operation knob 27b exposed to the outside from the hole 20b of the case 20 is integrated with the tip of the shaft 27 to which the pressing piece 29 is screwed. Is provided. Further, on one side of the shaft 27, a scale plate 30 indicating the feed amount of the wire 3 is disposed, and characters such as “5 m”, “10 m”, and “15 m” are displayed on the scale plate 30.

  When setting the feed amount (the lowering stop position of the elevating body 2) using this adjusting mechanism, first the operation knob 31 is pushed in to disengage the gears 25, 26 so that the gear 26 can be freely rotated. Then, the operation knob 27b is turned to slide the pressing piece 29, and the pressing piece 29 is moved to a position corresponding to a desired feed amount while looking at the scale of the scale plate 30, and then the operation knob 31 is pulled. It is only necessary to return the meshing of the gears 25, 26, and the feed amount can be easily set while looking at the scale of the scale plate 30. According to this adjusting mechanism, the feed amount can be adjusted without lowering the lifting body 2. Setting work can be done.

  By the way, in each of the above-described embodiments, the inclination of the balance shaft 11 is detected by the switch 15 arranged in the range where the balance shaft 11 performs the seesaw operation. However, the purpose of limiting the inclination detection means to the switch 15 is not intended. For example, a non-contact type position detection switch using a light beam such as infrared rays is used, and with this position detection switch, it is detected whether or not the balance shaft 11 is in a position in which an equilibrium state is maintained. When it is no longer from the predetermined position, it may be determined that the balance shaft 11 is tilted by a predetermined angle or more and a stop signal may be generated.

  Moreover, in each above-mentioned embodiment, although the wire 3 is used as a suspended body, a belt-shaped thing may be used, and the pulleys 13, 21, and 22 are used as the first and second direction changing members. Any thing is acceptable as long as the suspended body slides.

It is the figure which showed the raising / lowering apparatus of Embodiment 1 typically, (a) is sectional drawing seen from the front, (b) is sectional drawing which looked at the raising / lowering apparatus main body from the right side. It is an external view of the raising / lowering apparatus same as the above. It is sectional drawing of the raising / lowering body same as the above. The raising / lowering body which comprises the raising / lowering apparatus of Embodiment 2 is shown, (a) is a sectional side view, (b) is sectional drawing seen from the upper side. It is sectional drawing which looked at another raising / lowering body same as the above from the upper side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lifting device main body 2 Lifting body 3 Wire 3a Terminal 11 Balance shaft 13 Pulley 15 Switch 15a Lever 16 Winding drum 17 Stop device 21,22 Pulley 23a Wire insertion hole

Claims (4)

In the lifting device comprising a lifting device main body fixed to the building structure and a lifting body that can be lifted and lowered freely through a suspension body drawn out from the lifting device body,
The lifting / lowering device main body is provided with a winding means for winding and unwinding the suspension body, and a balance shaft supported so as to be able to perform seesaw operation at an intermediate portion in the axial direction, and the suspension body is attached to one side in the axial direction of the balance shaft. A holding portion for holding the terminal is provided with a first direction changing member for changing the direction of the suspended body downward by hanging the suspended body on the other side in the axial direction, and a suspended body fed from the winding means is provided on the balance shaft. Further, the first direction changing member and the second direction changing member which is provided on the lifting body and is hung on the lifting body and changes the direction of the hanging body upward, the terminal of the hanging body is connected to the balance shaft. While holding it in the holding part,
A feed stop mechanism that stops the suspension body from being fed from the lifting body to the holding portion side of the balance shaft when the suspension body is fed out by a predetermined length from the winding means, and the feed stop mechanism stops the suspension body from being fed. If the balance shaft is unbalanced and the balance shaft is in equilibrium, the tilt detection unit generates a stop signal for stopping the winding unit when tilted more than a predetermined angle, and the tilt detection unit generates a stop signal. A lifting device provided with stop means for stopping the operation of the winding means when input.   The tilt detection means includes a switch that is disposed in a range in which the balance shaft performs a seesaw operation, and when the balance shaft is tilted by a predetermined angle or more, the operation body is operated by the balance shaft to generate the stop signal. Item 1. The lifting device according to item 1.   On the surface of the lifting body, a suspension body insertion hole is provided for passing the suspension body fed from the lifting device body through the first direction changing member, and a stopper larger than the suspension body insertion hole is provided. It is attached to the position of the hanging body that comes into contact with the hole edge of the hanging body insertion hole when it is fed out for a predetermined length, and the feed stop mechanism is composed of the hanging body insertion hole and the stopper of the lifting body The elevating device according to claim 1 or 2, characterized in that Inside the lifting body, the suspension body is movably disposed between a stop position where the suspension body is brought into contact with the suspension body to stop feeding the suspension body and a position where the suspension body is separated from and released from the suspension body. When the feed is sent out, the suspension body is gradually moved to the stop position according to the feed amount, and when the feed amount reaches a predetermined length, a suspension body pressing portion is provided that moves to the stop position. The elevating device according to claim 1 or 2, wherein a mechanism is configured.

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