JP6206959B2 - Elevator for evacuation - Google Patents

Description

  The present invention relates to an elevator for evacuation used when evacuating to an upper floor of a building such as a coastal building or a highway due to a flood caused by a tsunami or a typhoon.

Although it is not intended to evacuate from floods caused by tsunamis and typhoons, an elevator (elevator elevator drive mechanism) that can be lifted and lowered by the passenger of the elevator entering small power such as human power from within the cage It is shown in Patent Document 1.
As shown in FIG. 15, this elevator supports the screw shaft 8 rotatably along the lifting path of the passenger car 4, and a female screw portion 9 fixed to the passenger car 4 via a support body 10. Rotating handles 11a, 11b, which rotationally drive the screw shaft 8 via the rotational driving force transmission mechanisms 13a, 13b, 13c in the passenger car 4 and the passenger floor F of the passenger car 4, respectively. 11c is provided. When operating from each of the getting-on / off floors F, when the rotary handle 11b, 11c is turned to rotate the drive shaft 20, the screw shaft 8 is rotationally driven in conjunction with the gear 21b, 21a. Reference numeral 2 denotes doors on each boarding floor, 3a and 3b are guide rails, 6 is a wire rope, and 7 is a counterweight (the reference numeral used in the drawing of Patent Document 1).
This elevator solves the problems of conventional elevators that require high-voltage power reception and high equipment costs, and seeks to obtain a simple elevator suitable for a house.

In addition, it is not structured so that the passenger of the elevator can move up and down from the inside of the elevator, but it is provided with a counterweight and rotation of the winding drum so that it can be easily lifted by human power assuming evacuation from a tsunami etc. Patent Document 2 describes a hand-wound gondola equipped with a transmission that can change the number.
This hand-wound gondola consists of a gondola kite on which people ride, a counterweight for balancing the weight of the gondola kite, a first hoisting drum for hoisting a rope for hanging the gondola kite, and a rope for hanging the counterweight A second winding drum for winding, a handle for manually rotating the second winding drum, and a transmission mechanism for transmitting the rotation of the second winding drum to the first winding drum, the transmission mechanism Has a transmission that can change the ratio of the rotational speed of the first winding drum to the rotational speed of the second winding drum.
This hand-wound gondola makes it possible to evacuate users manually even when power cannot be supplied, and by installing a transmission, some of the number of people on the gondola cage ( That is, it is intended to be able to appropriately cope with weight fluctuation).

JP-A-9-100080 JP2013-60251

In each of the elevators of Patent Documents 1 and 2, the counterweight for reducing the power for raising and lowering the car is similar to a general elevator, and simply performs the raising / lowering operation opposite to the raising / lowering of the car. Just do it.
By the way, if it is an elevator for evacuation in the case of a tsunami or flood, when the evacuation to the upper floor of the building is completed in the event of a tsunami or flood, the cage is stopped on the upper floor from which it was evacuated. On the contrary, the counterweight is located near the ground. Therefore, when a tsunami or flood actually rushes to the building, there is a risk that the counterweight near the ground will be swept away by wave force, and a pulley that engages the rope through the rope that suspends the counterweight. The basket connected to the other end of the rope may be damaged.

  Patent Documents 1 and 2 are structures that bear the hanging load of the cage on the side of the building or inside the building. However, when installing an elevator for evacuation in an existing building, it is necessary to design the existing building during construction. In general, since an increase in load burden is not assumed, it is difficult to provide the techniques of Patent Documents 1 and 2 in an existing building.

  The present invention has been made in view of the above circumstances, and in the event of a tsunami or flood, it can be evacuated to the upper floor by a cage that can be raised and lowered, and when evacuating by stopping the basket on the upper floor of the work, An object of the present invention is to provide an evacuation elevator that can be used again to get down to the ground after a tsunami or flood has passed, eliminating the risk of counterweight being swept away by wave power.

Invention of Claim 1 which solves the above-mentioned subject is an elevator used when evacuating to the upper floor of a work, such as a building,
The basket on one side and the counterweight on the other side are suspended by a rope with a pulley attached to the elevator frame structure interposed so as to perform a lifting operation opposite to each other.
A basket lifting mechanism for lifting and lowering the basket;
A counterweight single lifting mechanism capable of lifting and lowering the counterweight independently without being interlocked with the lifting and lowering operation of the basket;
An evacuation lift for evacuation, comprising power input means for lifting and lowering the counterweight, which inputs power for raising the counterweight to the counterweight single lifting mechanism.

According to a second aspect of the present invention, in the evacuation elevator according to the first aspect, there is provided a power input means for raising and lowering a car that does not use at least a commercial power source, and inputs power for raising and lowering the car to the car raising and lowering mechanism. ,
A power input means for raising and lowering the counterweight that does not use at least a commercial power source is provided, which inputs power for raising the counterweight to the counterweight single lifting mechanism.

  According to a third aspect of the present invention, in the evacuation elevator according to the first or second aspect, the power input means for lifting the counterweight is installed at a height position where power can be input from the evacuation floor of the workpiece. .

  A fourth aspect of the present invention is the evacuation elevator according to any one of the first to third aspects, wherein the rope is configured to suspend the counterweight via a moving pulley, and the side opposite to the cage side of the rope that suspends the moving pulley. Is connected to a rope hoisting mechanism constituting the counterweight single lifting mechanism.

  According to a fifth aspect of the present invention, in the evacuation elevator according to any one of the first to third aspects, the counterweight is attached to a lower end of a rope that hangs down via a pulley attached to an elevator frame structure on the counterweight side. The counterweight single lifting mechanism is characterized in that the counterweight is lifted and lowered independently of the rope connecting the counterweight and the cage.

According to a sixth aspect of the present invention, in the elevator for evacuation according to any one of the first to fifth aspects, the elevator frame structure is constructed structurally independent of the workpiece.
According to a seventh aspect of the present invention, in the elevator elevator according to the sixth aspect, the cage frame structure for supporting the cage to be movable up and down and the counterweight frame structure for supporting the counterweight to be movable up and down are constructed independently of each other. It is characterized by being.

  An eighth aspect of the present invention is the evacuating elevator according to any one of the first to seventh aspects, wherein the cage lifting mechanism meshes with a vertical rack provided on the elevator frame structure, which also functions as a traveling rail. A gear mechanism installed on the cage side having a pinion, the gear mechanism including a worm fixed to a vertical shaft and a worm wheel meshing with the worm, the worm wheel and the pinion being in common The power for rotating the shaft of the worm is input by power input means for raising and lowering the cage inside the cage.

  Claim 9 is the evacuation elevator according to any one of claims 1 to 7, wherein the cage lifting mechanism includes a rope winder having a drum on which at least one turn of the rope is wound on an upper surface portion of the cage. Providing the drum as a moving pulley suspended by a rope between a rope end fixing portion at the top of the cage frame structure portion and a pulley that guides the rope toward the counterweight side, and the rope winder The drum is provided with a worm speed reducer that transmits a rotational force, and power for driving the worm speed reducer is input by power input means for raising and lowering the car inside the car.

According to the elevator for evacuation of the present invention, since the counterweight can be lifted and lowered independently without interlocking with the raising and lowering operation of the cage, the counterweight located near the ground after the evacuation to the upper floor of the work is completed. The counterweight can be prevented from being washed away by the tsunami or flood wave power. Therefore, it is possible to prevent the pulley connected to the rope via the rope suspending the counterweight and the cage connected to the other end of the rope from being damaged. Therefore, after the tsunami or flood has passed, the basket can be used again to descend to the ground.
According to the second aspect of the present invention, the car is provided with power input means for raising and lowering the car by, for example, manual force, which does not use the commercial power source, so that the car can be removed even when the commercial power source is lost during a tsunami or flood. The evacuees can be evacuated to the upper floor (evacuation floor) of the work.

  When the power input means for raising and lowering the counterweight is installed at a height position where power can be input from the evacuation floor of the workpiece, the evacuation to the upper floor of the workpiece is completed. The counter weight can be immediately raised, and an appropriate and quick response is possible.

If the pulley on which the counterweight is suspended is a moving pulley as in claim 4, the moving distance of the moving pulley / counterweight is half of the moving distance of the car, so the lowest position of the counterweight is It can be about the middle position of the moving range. Therefore, even if the counterweight is positioned higher than near the ground while the cage is located on the upper floor, and the operation of raising the counterweight is delayed, the counterweight is not washed away by a tsunami or flood. Or damage caused by being swept away.
Also, when the pulley that suspends the counterweight is a moving pulley, the load (tension) that acts on the rope that suspends the cage is the same as when the counterweight is stationary, even while the counterweight is being wound by the rope winding mechanism. The burden of the car's own weight on the car lifting restraint means (or the car stopping means) accompanying the stop of the car does not increase.

  The counterweight is attached to a lower end of a rope that hangs down via a pulley attached to a lifter frame structure on the counterweight side, and the counterweight single lifting mechanism is connected to a cage, as in claim 5. Regardless of the above, the lowermost position of the counterweight can be set higher than that near the ground by using a mechanism for directly raising and lowering the counterweight.

If the cage frame structure portion that supports the cage so as to be able to move up and down is constructed structurally independent of the workpiece as in claim 6, even if a deformation strain occurs in the workpiece due to an earthquake, the influence of the deformation strain Therefore, there is no problem that the basket cannot be raised or lowered due to the deformation distortion of the workpiece or the raising and lowering becomes unstable.
In addition, even when the evacuation elevator of the present invention is installed on an existing workpiece that is not designed to increase the load burden, it is structurally independent so that it can be applied without reinforcement of the existing workpiece. .

  When the cage frame structure and the counterweight frame structure are constructed independently of each other as in claim 7, the cage frame structure is different from the case where both are constructed integrally. It is not affected by the stress generated in the frame structure, and the stress balance is not disturbed. Therefore, the stress generated in the counterweight frame structure does not cause a deformation distortion of the cage frame structure, and does not hinder smooth raising and lowering of the cage in the cage frame structure.

  In claim 8, the basket lifting mechanism includes a vertical rack that also functions as a traveling rail provided in the elevator frame structure, and a gear mechanism that is installed on the basket side and has a pinion that meshes with the rack. Since the gear mechanism uses a worm gear, and the power for rotating the worm shaft of the worm gear is input by the power input means for raising and lowering the cage inside the cage, this gear mechanism is installed in the cage inside the cage. When there is no power input by the power input means for raising and lowering, it also serves as a car elevating restraining means (or a car stopping device) that restrains the car from being raised or lowered. In other words, since the worm gear can only be input from the worm side, it is possible to prevent the cage from moving up or down even if there is a weight imbalance between the cage and the counterweight due to the number of people on the cage. .

  A cage lifting mechanism comprising a rope winder having a drum functioning as a moving pulley, and a worm speed reducer for transmitting rotational force to the drum of the rope winder provided on the upper surface of the cage as in claim 9. Is simple in structure and can be easily installed.

It is the front view which showed typically the elevator for evacuation of one Example of this invention. It is a left view of FIG. It is a top view by the AA cross section of FIG. FIG. 3 is an enlarged view of a substantially basket portion in FIG. 2. FIG. 4 is an enlarged view of a substantially basket portion in FIG. 3. 4A is an enlarged view of the main part of FIG. 4 (also a cross-sectional view taken along line B′-B ′ of FIG. 7), and FIG. (However, the rack is indicated by a one-dot chain line). It is DD sectional drawing of (a) of FIG. 6 (it is also the enlarged view which changed the 90 degree direction of the principal part of FIG. 5). It is the front view which showed typically one Example of the counterweight single raising / lowering mechanism provided in the counterweight side frame structure, and the power input means for counterweight raising / lowering. It is a top view of FIG. It is a figure which shows the other Example of a counterweight independent raising / lowering mechanism. It is the front view which showed typically the escape elevator of the other Example from which the power input means for a cage raising / lowering mechanism and a cage raising / lowering differs. It is the top view to which the cage | basket part in FIG. 11 was expanded. It is a principal part enlarged view of FIG. 12 (it is also FF sectional drawing of FIG. 14). It is EE sectional drawing of FIG. FIG. 15 is a perspective view showing an evacuation elevator 1 ″ as an embodiment when the evacuation elevator 1 ′ of the embodiment schematically shown in FIGS. 11 to 14 is embodied. It is the perspective view which showed the detail of the part of the rope winding mechanism (counterweight independent raising / lowering mechanism) 13 "in FIG. It is a schematic diagram which shows an example of the conventional elevator which can be raised / lowered manually without using a commercial power source.

  Hereinafter, the form for implementing the elevator for evacuation of this invention is demonstrated with reference to drawings.

  1 is a front view schematically showing an evacuation elevator 1 according to an embodiment of the present invention, FIG. 2 is a left side view of FIG. 1, and FIG. 3 is a plan view taken along a line AA in FIG. 4 is an enlarged view of a generally basket portion in FIG. 2, and FIG. 5 is an enlarged view of a generally basket portion in FIG. 6 (a) is an enlarged view of the main part of FIG. 4 shown in the BB cross section of FIG. 5 (also a cross-sectional view of B′-B ′ of FIG. 7), and FIG. It is -C sectional drawing. FIG. 7 is a cross-sectional view taken along the line DD of FIG. 6A (also an enlarged view showing the main part of FIG. 5 with the direction changed by 90 °).

The evacuation elevator 1 has a cage 3 that lifts and lowers an evacuee and a counterweight 4 for balancing the weight of the cage 3. The cage 3 and the counterweight 4 are lifted and reversed in reverse directions. In order to operate, they are suspended by ropes 10 with pulleys 8 and 9 attached to the elevator frame structure 5 respectively.
Also, a car lifting / lowering mechanism 11 for raising and lowering the car 3 is provided, and power for raising and lowering the car is input to the car lifting / lowering mechanism 11 inside the car 3. Means 12 are provided. Thus, the escape elevator 1 according to the embodiment is a self-propelled elevator. Further, a car lifting restraint means for restraining the basket 3 from being lifted or lowered when there is no power input by the power input means 12 for raising and lowering the car (corresponding to a worm gear 21e portion described later, which corresponds to reference numeral 25 in FIGS. 6 and 7). Is provided).
Furthermore, a counterweight single lifting mechanism (an example is indicated by reference numeral 13 in FIGS. 8 and 9 to be described later) capable of lifting the counterweight 4 independently without being interlocked with the lifting and lowering operation of the basket 3. And a power input means for raising and lowering the counterweight (not shown) (noted by reference numeral 14 in FIGS. 8 and 9), which inputs at least the counterweight 4 raising / lowering mechanism to the counterweight single raising / lowering mechanism. I have.
In this embodiment, the rope 10 is configured to suspend the counterweight 4 via the moving pulley 15, and the end of the rope 10 that suspends the moving pulley 15 on the opposite side to the cage 3 side is lifted and lowered by the counterweight alone. Details of the mechanism 13 are connected to a rope winding mechanism 13 described later. FIG. 1 shows only the take-up reel 41 constituting a part of the rope hoisting mechanism 13. In FIG. 1, a broken line R indicates the height position of an evacuation floor such as a rooftop. Reference numeral 16 denotes a shock absorber.

In this embodiment, the elevator frame structure 5 is separately provided in a cage frame structure 6 in which the cage 3 is installed and a counterweight frame structure 7 in which the counterweight 4 is installed. That is, both 6 and 7 are constructed structurally independently. The both 6 and 7 are installed with a slight gap from the outer wall 2a of the building (workpiece) 2 where the evacuation elevator 1 is to be installed (see FIG. 3). That is, the elevator frame structure 5 is constructed structurally independent from the structure of the building 2. In FIG. 3, reference numerals 6a and 7a denote upper frame members of the cage frame structure 6 and the counterweight frame structure 7, respectively.
In order to reduce distortion of the cage frame structure 6 due to an earthquake, braces may be provided on the left and right side portions of the cage frame structure 6.
In addition, the elevator frame structure 5 does not necessarily have to be an independent frame structure for both the cage frame structure 6 and the counterweight frame structure 7, and it is a single frame structure as in a general elevator. You may comprise so that each structural member of the elevator 1 for evacuation may be accommodated in the comprised elevator frame structure 5 (The Example of FIG. 15, FIG. 16 mentioned later is such a structure).

As shown in enlarged views in FIGS. 6 and 7, the basket lifting mechanism 11 includes a vertical rack 20 that also functions as a traveling rail, and a pinion 21 a that meshes with the rack 20. And a gear mechanism 21 installed on the cage side.
The gear mechanism 21 includes a worm 21c fixed to a vertical shaft 21b, and a worm wheel 21d that meshes with the worm 21c. A worm gear composed of a worm 21c and a worm wheel 21d is denoted by reference numeral 21e. The worm gear 21e also functions as the cage lifting / lowering restraining means 25 as described above.
The worm wheel 21d and the pinion 21a are fixed to a common horizontal shaft 21f. The rack 20 is fixed to a support column 22 provided integrally with the cage frame structure 6. The gear mechanism 21 is provided in a casing 24 provided on a base portion 23 fixed to the cage 3.
The support column 22, the rack 20, the pinion 21a, the base portion 23, and the casing 24 are also provided on the left side of the cage 3 in FIG. 5, and the pinion 21a extends to the left side in FIG. It is fixed to 21f.

  As shown in FIGS. 6 and 7, the power input means 12 for raising and lowering the car includes a bevel gear 12 a fixed to a vertical shaft 21 b constituting the gear mechanism 21 of the car lift mechanism 11, the bevel gear 12 a The meshing bevel gear 12b, the sprocket 12d in the cage 3 fixed to the shaft 12c of the bevel gear 12b, the sprocket 12e provided below the sprocket 12d, and the chain 12f spanned between the two sprockets 12d and 12e And a handle 12h attached to the shaft 12g of the lower sprocket 12e.

In this embodiment, when the handle 12h is turned, the manual rotational force is transmitted to the worm 21c through the chain 12f and the bevel gears 12b and 12a, and the worm wheel 21d meshing with the worm 21c is driven to rotate. The pinion 21a is rotationally driven. Since the rack 20, which is also the traveling rail, is fixed, the rotating pinion 21 a moves up and down along the rack 20. Therefore, the gear mechanism 21 having the pinion 21a and the cage 3 integrally fixing the gear mechanism 21 are moved up and down.
In the illustrated example, the manual handle 12h is used as the input part of the power input means 12 for raising and lowering the car. However, an electric motor operated by a battery power source managed so as to be charged at all times instead of a commercial power source may be used. Good. It is also conceivable to use a portable engine generator as a power source. In addition, if the electric motor has a structure that rotates only in one direction, an ascending / descending switching mechanism that switches between ascending and descending may be interposed.
It is also possible to provide both a manual power input means and a power input means using a battery power supply, and both can be used by switching.

  In the gear mechanism 21 constituting the car lifting mechanism 11, since the worm gear 21e composed of the worm 21c and the worm wheel 21d can only input from the worm 21c side, the power input by the power input means 12 for raising / lowering the car inside the car can be performed. When not, the rotation of the worm wheel 21d is restricted, the rotation of the pinion 21a fixed to the horizontal shaft 21f together with the worm wheel 21d is restricted, and therefore the pinion 21a meshing with the rack 20 is restricted from moving, and the cage 3 moves up and down. Be bound. That is, the portion of the worm gear 21e in the gear mechanism 21 that constitutes the car lifting mechanism 11 constitutes a car lifting restraint means 25 that restrains the basket 3 from lifting or lowering (also serves as the car lifting restraint means 25). Even if a weight imbalance between the cage 3 and the counterweight 4 due to the number of people riding on the cage is caused by the cage lifting / lowering restraining means 25 (the portion of the worm gear 21e in the gear mechanism 21), It can be prevented from moving down.

  As shown in FIGS. 3 and 5, left and right width holding rollers 31 are provided at the left and right portions at the four corners when viewed from above the cage 3, and front and rear width holding rollers 32 are provided at the front and rear portions. Each of the rollers 31 and 32 is capable of rolling while abutting against a guide member 34 fixed to the pillars 33 at the four corners constituting the cage frame structure 6, thereby guiding smooth raising and lowering of the cage 3.

The above-described counterweight single lifting mechanism 13 and power input means 14 for lifting and lowering the counterweight can be configured as shown in FIGS. 8 and 9, for example.
As described above, in this embodiment, the rope 10 is configured to suspend the counterweight 4 via the movable pulley 15, and the end of the rope 10 that suspends the movable pulley 15 on the opposite side to the cage 3 side is the counterweight. It is connected to a rope hoisting mechanism 13 that is a single lifting mechanism.
This rope hoisting mechanism 13 is a building of the counterweight frame structure 7 of the take-up reel 41 that winds the portion opposite to the cage 3 side of the rope 10 that suspends the movable pulley 15 and the shaft 42 of the take-up reel 41. The worm wheel 43 is fixed to an end portion extending horizontally on the outer side, and the worm 44 is fixed to a vertical worm shaft 44 a and meshes with the worm wheel 43. Reference numeral 41 a denotes a collar portion of the take-up reel 41.
Further, the power input means 14 for raising and lowering the counterweight for inputting the power for raising the counterweight 4 to the rope hoisting mechanism 13 includes a bevel gear 45 fixed to the lower end of the worm shaft 44a and an umbrella meshing with the bevel gear 45. It comprises a gear 46 and a handle 47 attached to the shaft 46a of the bevel gear 46. The position of the handle 47 is at a height position that can be operated from the roof (evacuation floor) R of the building 2.

After all of the evacuees have evacuated to the roof of the building using the cage 3, for example, when an evacuation guide stands on the roof of the building and turns the handle 47, the manual rotational force is applied to the bevel gears 46 and 45, the worm It is transmitted to the shaft 44a / worm 44, worm wheel 43, and reel shaft 42, and the rope 10 is wound up by the take-up reel 41, and the counterweight 4 is pulled up.
Therefore, it is possible to prevent the counterweight 4 from being washed away by tsunami or flood wave force, and the counterweight 4 is connected to the pulleys 9 and 8 engaged with the rope 10 via the rope 10 suspending the counterweight 4 and the other end of the rope. It is possible to prevent the basket 3 being broken from being damaged. Thus, after the tsunami and flooding have passed, the basket can be used again to descend to the ground.

If the pulley that suspends the counterweight 4 is a moving pulley 15 as in this embodiment, the moving distance of the moving pulley / counterweight is half of the moving distance of the car 3, so that the lowermost position of the counterweight 4 is It can be set to about the middle position of the vertical movement range of the cage 3. Therefore, even if the operation of raising the counterweight 4 is delayed even if the counterweight 4 is located at a position sufficiently higher than near the ground while the cage 3 is located on the upper floor, the counterweight 4 will flow due to a tsunami or flood. Less damage or less damage from being swept away.
Further, even when the counterweight 4 is being wound up by the rope winding mechanism 13, the load (tension) acting on the rope 10 that suspends the cage 3 is the same as when the counterweight 4 is stationary. There is no increase in the burden of the weight of the cage on the lifting restraint means (the part of the worm gear 21e) 25.

The counterweight single lifting mechanism can be configured as shown in FIG.
In this embodiment, the counterweight 4 is attached to the lower end of a rope 10 (10 ') that hangs down through a pulley 9 attached to the counterweight frame structure 7, and another rope 50 connected to the counterweight 4 is attached to the counterweight alone. The counterweight 4 is wound up by a rope hoisting mechanism 13 ′ that constitutes an elevating mechanism, and the counterweight 4 is raised and lowered independently of the rope 10 connecting the counterweight 4 and the cage 3.
The rope winding mechanism 13 ′ may be basically the same as the rope winding mechanism 13 described in FIGS. However, in this case, since the rope winding mechanism 13 'bears the entire weight of the counterweight 4, the one corresponding to the weight is used.
Since the counterweight 4 is lifted directly by the rope hoisting mechanism 13 ', the tension of the rope 10 hanging the cage 3 is released, but the raising / lowering of the cage 3 is restrained by the cage lifting restraining means 25 as described above. So there is no problem. However, a mechanism for absorbing the looseness of the rope 10 may be provided as appropriate.
The power input means for raising / lowering the counterweight can also employ the same mechanism as the power input means 14 for raising / lowering the counterweight shown in FIGS.

11 to 14 show an evacuation elevator 1 'according to another embodiment.
The cage elevating mechanism 11 ′ in the evacuation elevator 1 ′ is provided with a rope winder 61 having a drum 61 a on which a rope is wound at least one turn on the upper surface portion of the cage 3, and the drum 61 a is attached to the cage frame structure 6. The rope end fixing part 62 and the rope 10 (10 ″) between the rope 10 that guides the rope 10 toward the counterweight 4 and the rope winder 61 of the rope winder 61 The drum 61a is provided with a worm speed reducer 63 for transmitting rotational force, and the power for driving the worm speed reducer 63 is input by a power input means 68 for raising and lowering the car inside the car 3. is there.

As shown in FIGS. 13 and 14, the worm speed reducer 63 of the cage lifting mechanism 11 ′ includes a worm wheel 65 fixed to an extension portion of the drum shaft 61 b of the rope winder 61 within the casing 64, and the worm wheel. And a worm 66 fixed to a vertical worm shaft 66a. Since the worm speed reducer 63 is used in the cage lifting / lowering mechanism 11 ′, the cage lifting / lowering restraining means 75 for restraining the worm speed reducer (worm gear portion by the worm 66 and the worm wheel 65) 63 from moving up and down the cage 3 is provided. Also serves as.
The power input means 68 for raising and lowering the cage includes a bevel gear 68a fixed to a lower end extending into the cage 3 of the vertical shaft 66a of the worm 66, and a bevel gear fixed to a horizontal shaft 68c that meshes with the bevel gear 68a. 68b, a sprocket 68d fixed to the horizontal shaft 68b, a sprocket 68e provided below the sprocket 68d, a chain 68f spanned between the two sprockets 68d and 68e, and a shaft 68g of the lower sprocket 68e. It consists of an attached handle 68h and the like.

In this embodiment, when the handle 68h is turned, the manual rotational force is transmitted to the worm speed reducer 63 via the chain 68f and the bevel gears 68b and 68a, and the drum 61a of the rope winder 61 is rotationally driven, and the rope 10 (10 ″) is wound or rewound, and the basket 3 is moved up and down.
In this case as well, an electric motor operated by a battery power source or a power source of a portable engine generator may be used. Further, if the electric motor has a structure that rotates only in one direction, an up / down switching mechanism is interposed.

FIG. 15 is a diagram showing an evacuation elevator 1 ″ as an embodiment when the evacuation elevator 1 ′ of the embodiment schematically shown in FIGS. 11 to 14 is embodied.
The evacuation elevator 1 ″ is installed in an evacuation tower 80 constructed as a place for evacuation in the event of a tsunami and is higher than the tsunami estimated height, and the steel frame of the evacuation tower 80 forms an elevator frame structure 81. Therefore, in this elevator frame structure 81, the cage frame structure and the counterweight frame structure are integrated as a structure and are not separated.
This evacuation elevator 1 "is substantially the same as the evacuation elevator 1 'of FIGS. 11 to 14 schematically shown as a basic mechanism, and the same reference numerals are given and description thereof is omitted.
The evacuation elevator 1 "does not have a structure corresponding to a guide rail that stabilizes the cage 3 such as the left and right width holding rollers 31, the front and rear width holding rollers 32, and the guide member 34 provided in the evacuation elevator 1 '. This is a suspended scaffold structure with a rope 10 ″.
FIG. 16 shows details of the rope winding mechanism (counterweight single lifting mechanism) 13 ″ in FIG. 15. This rope winding mechanism 13 ″ corresponds to the portion of reference numeral 13 in FIG. FIG. 9 shows an embodiment in which the rope winding mechanism 13 schematically shown in FIG. 9 is embodied, and the basic mechanism is substantially the same as the rope winding mechanism 13 of FIGS. 8 and 9 schematically shown. The same reference numerals are given and the description is omitted.

  In the present invention, the car lifting mechanism, the power input means for raising and lowering the car, the counterweight single lifting mechanism, the power input means for raising and lowering the counterweight, and the car lifting restraint means are not limited to the above-described embodiments. For example, in each embodiment, the power source for raising and lowering the cage and raising and lowering the counterweight is a power source that does not use a commercial power source such as a manual power source, but a commercial power source may be used. Furthermore, the cage and the counterweight that can be raised and lowered are suspended by a rope with a pulley so that they can move up and down opposite to each other, and the counterweight can be lifted and lowered independently from the raising and lowering of the cage. Various design changes can be made without departing from the scope of the present invention.

1, 1 ', 1 "Elevating elevator 2 Building (workpiece)
3 Cargo 4 Counterweight 5 Elevator frame structure 6 Cargo frame structure 7 Counterweight frame structure 8, 9 Pulley 10 Rope 11, 11 ', 11 "Basket lifting mechanism 12 Power input means 12a, 12b for raising / lowering the car Bevel gear 12c Shaft 12d , 12e Sprocket 12f Chain 12g (Sprocket 12e) shaft 12h Handle 13, 13 ', 13 "Rope winding mechanism (counterweight independent lifting mechanism)
14 Power input means 15 for lifting / lowering counterweight 15 Moving pulley 20 Rack (travel rail)
21 gear mechanism 21a pinion 21b vertical shaft 21c worm 21d worm wheel 21e worm gear 21f horizontal shaft 22 support column 23 base portion 24 casing 25 cage lifting restraint means 31 left and right width holding roller 32 front and rear width holding roller 33 four corner pillars 34 guide member 41 winding Take-up reel 42 Reel shaft 43 Worm wheel 44 Worm 44a Worm shaft 45, 46 Bevel gear 46a Shaft 47 Handle 61 Rope winder 61a Drum 61b Drum shaft 62 Rope end fixing part 63 Worm speed reducer (Cage lifting restraint means 75)
64 Casing 65 Worm wheel 66 Worm 66a Worm shaft 68 Power input means 68a and 68b for raising and lowering the car Bevel gear 68c Horizontal shaft 68d and 68e Sprocket 68f Chain 68h Handle 80 Tsunami evacuation tower 81 Steel framework (elevator frame structure)

Claims (9)

An elevator used when evacuating to the upper floor of a work such as a building,
The basket on one side and the counterweight on the other side are suspended by a rope with a pulley attached to the elevator frame structure interposed so as to perform a lifting operation opposite to each other.
A basket lifting mechanism for lifting and lowering the basket;
A counterweight single lifting mechanism capable of lifting and lowering the counterweight independently without being interlocked with the lifting and lowering operation of the basket;
An evacuation lift for evacuation, comprising power input means for lifting and lowering the counterweight, which inputs power for raising the counterweight to the counterweight single lifting mechanism. Power input means for raising and lowering the car that does not use at least a commercial power source is provided inside the car, and inputs power to raise and lower the car to the car lifting mechanism.
The evacuation elevator according to claim 1, further comprising a power input means for lifting and lowering the counterweight that does not use at least a commercial power source, and inputs power for raising the counterweight to the counterweight single lifting mechanism.   The evacuation elevator according to claim 1 or 2, wherein the power input means for raising and lowering the counterweight is installed at a height position where power can be input from the evacuation floor of the workpiece.   The rope is configured to suspend the counterweight via a moving pulley, and the end opposite to the cage side of the rope that suspends the moving pulley is connected to a rope hoisting mechanism that constitutes the counterweight single lifting mechanism. The evacuation elevator according to any one of claims 1 to 3, wherein:   The counterweight is attached to the lower end of a rope that hangs down through a pulley attached to the elevator frame structure on the counterweight side, and the counterweight single elevating mechanism includes a rope connecting the counterweight and the cage, The evacuation elevator according to any one of claims 1 to 3, wherein the counterweight is lifted and lowered independently of each other.   The escape elevator according to any one of claims 1 to 5, wherein the elevator frame structure is constructed structurally independent of the workpiece.   The escape elevator according to claim 6, wherein the cage frame structure for supporting the cage to be movable up and down and the counter weight frame structure for supporting the counterweight to be lifted up and down are constructed independently of each other. .   The basket elevating mechanism includes a vertical rack that also functions as a traveling rail provided in the elevator frame structure, and a gear mechanism that is installed on the cage side, and has a pinion that meshes with the rack. A worm fixed to a vertical shaft and a worm wheel that meshes with the worm. The worm wheel and the pinion are fixed to a common horizontal shaft, and the power for rotationally driving the shaft of the worm is The evacuation elevator according to any one of claims 1 to 7, wherein the evacuation elevator is input by power input means for raising and lowering the basket inside.   The cage lifting mechanism is provided with a rope winder having a drum on which a rope is wound at least one round on the upper surface portion of the cage, the drum is fixed to a rope end fixing portion at an upper portion of the cage frame structure portion, and a counterweight. A worm speed reducer configured to function as a moving pulley suspended by a rope between a pulley that guides the rope toward the side and transmitting a rotational force to the drum of the rope winder; and the worm speed reducer The evacuation elevator according to any one of claims 1 to 7, wherein driving power is input by power input means for raising and lowering the cage inside the cage.