JP2002060166A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator device reducing the vibration and noise in a car during its operation and provide superior riding quality by installing a drive in the car. SOLUTION: A rack 11 is erected in a hoistway 1 along the traveling path of the car 2. The drive 13 is constituted of gears 17 and 18 separately disposed in the longitudinal direction of the rack 11, and a motor 16 for driving the gears 17 and 18 and an annular transmission belt composed of a flexible bar body, meshing with the gears 17 and 18, and having an engagement element 23 meshing with the rack 11 between the both gears 17 and 18; and is installed in the car 2. This constitution can set the number pairs of the meshing teeth to an appropriate plural number in the meshing of the engagement element 23 of the annular transmission belt 20 with the rack 11. The teeth are thus continuously meshed so that the vibration of the car 2 during traveling can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus which is driven up and down by a drive unit provided in a car.

[0002]

2. Description of the Related Art FIG.
It is a figure which shows the conventional elevator apparatus shown by Unexamined-Japanese-Patent No. 88, and is a perspective view which shows notionally the car provided in the hoistway. In the figure, 1 is a hoistway, 2 is a car that moves up and down the hoistway 1, 3 is a guide rail that is erected on the hoistway 1 and is arranged on both sides of the car 2, and 4 is one side of the guide rail 3. It is a rack provided along.

[0005] Reference numeral 5 denotes a drive unit, which is disposed on the top and bottom surfaces of the car 2 and is provided corresponding to each of the guide rails 3 on both sides, and a pinion 6 meshing with the rack 4 and an electric motor 7 for driving the pinion 6. And a guide wheel 8 that rolls on a guide surface of the guide rail 3 facing the rack 4.

The conventional elevator apparatus is constructed as described above, and has a pinion 6 which meshes with the rack 4 of the guide rail 3.
Is provided in the car 2. When the electric motor 7, that is, the driving device 5 is energized, the car 2 is moved up and down by the engagement of the rack 4 and the pinion 6.

[0005]

In the conventional elevator apparatus as described above, a driving action is generated by the engagement between the rack 4 of the guide rail 3 and the pinion 6 of the driving machine 5. However, in the meshing of the rack 4 and the pinion 6, the meshing ratio of the teeth, that is, the number of meshing teeth is as small as about 1. For this reason, the vibration of the car 2 at the time of raising and lowering operation becomes large, and the load per one pinion 6 is reduced because a plurality of pinions 6 are provided. However, continuity is not obtained in the meshing of the teeth. There was a problem that vibration increased.

The present invention has been made to solve such a problem, and an object of the present invention is to provide an elevator apparatus having a configuration in which a car is provided with a driving device and having a comfortable ride.

[0007]

SUMMARY OF THE INVENTION In an elevator apparatus according to the present invention, a car that moves up and down a predetermined path of a hoistway, a rack that stands on the hoistway along the predetermined path, and a rack that is provided in a car are provided. A gear and a flexible strip, which are arranged apart from each other in the direction along the length of the gear, are wound around and mesh with both the gears, and the engaging element between the two gears drives at least one of the annular transmission band and the gear. And a driving device constituted by an electric motor.

Further, in the elevator apparatus according to the present invention, there is provided an annular transmission band comprising a roller chain in which the roller meshes with the gear and the engaging element formed on the pin of the roller meshes with the rack.

Further, in the elevator apparatus according to the present invention, there is provided an engaging element comprising an elastic roller to which an elastic substance is adhered.

Further, in the elevator apparatus according to the present invention, there is provided an annular transmission belt formed of a double-sided toothed belt in which the internal teeth mesh with the gears and the engaging elements including the external teeth mesh with the teeth of the rack.

Further, in the elevator apparatus according to the present invention, a rack is provided which is formed by stacking a plurality of rack plates formed by pressing a thin plate.

Further, in the elevator apparatus according to the present invention, there is provided a buffer piece provided at the tooth bottom of the gear for buffering the engagement operation with the roller of the annular transmission band.

[0013] In the elevator apparatus according to the present invention, the car is provided with a guide tool movably engaged with a rack also serving as a guide rail.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 4 show an embodiment of the present invention. FIG. 1 is a cross-sectional plan view of a hoistway provided with a car, FIG. 2 is a front view corresponding to FIG. 1, and FIG. FIG. 4 is an enlarged longitudinal sectional view showing a main part of FIG.
4 is a left side view of FIG. In the figure, 1 is a hoistway, 2
Is a car which moves up and down the hoistway 1, and 3 is a guide rail, which is erected on the hoistway 1 via a bracket 9 provided on the wall of the hoistway 1, and is arranged on both sides of the car 2 so as to face each other.

A guide 10 is provided on the upper and lower sides of the car 2 and movably engages with the guide rails 3. A rack 11 is provided on the hoistway 1 via a bracket 9 and is provided on both sides of the car 2. The guide rails 3 are provided so as to be opposed to each other, and have a length parallel to the guide rail 3. The rack 11 is formed by laminating a plurality of rack plates 12 formed by pressing a thin plate.

13 is a rack 1 provided on both sides of the car 2
A driving machine mounted on both sides of the car 2 opposite to the car 1; a base 15 mounted on the lower part of the car 2 via an anti-vibration rubber 14; a motor 16 provided on the lower surface of the base 15; A driving gear 17 fixed to the output shaft and having gears formed on both sides in the width direction, and a gear that is pivotally attached to the base 15 and formed on both sides in the width direction, and is disposed above the driving gear 17. The driven gear 18 is provided.

The drive unit 13 includes a drive gear 17 and a driven gear 18 which are formed of an endless flexible strip formed by a roller chain, and which are formed on both sides in the width direction of the drive gear 17 and the driven gear 18, respectively. An annular transmission band 20 wound around and arranged in parallel with each other via rollers 19 and an engaging element 2 fitted and mounted on a pin 22 inserted between links 21 adjacent to each other in the parallel direction of the annular transmission band 20.
3 are provided. The engaging element 23 is formed by an elastic roller on which an elastic substance such as rubber is engaged so as to mesh with the rack 11, and the engaging element 23 is formed by a middle and high spherical shape in the axial direction of the pin 22.

In the elevator device constructed as described above, the driving gears 13 are provided on both sides of the car 2 and when the electric motor 16 is energized, the driving gear 17 rotates. Then, the annular transmission band 20 wound around both the driving gear 17 and the driven gear 18 is driven. As a result, the engaging element 23 is moved between the two
And the car 2 is moved up and down.

As for the engagement between the engagement member 23 of the annular transmission band 20 and the two members of the rack 11, the number of meshing teeth can be easily set to an appropriate number. For this reason, since the meshing load of a pair of the above-mentioned twins can be reduced and the continuity of meshing of the teeth can be obtained,
Vibration during the raising and lowering operation of the car 2 can be reduced.
Therefore, the car 2 can be moved up and down quietly by the driving device 13 provided in the car 2. By setting the logarithm of the teeth meshing with the twins to about 10, a favorable driving state with less vibration or the like can be obtained.

In the embodiment shown in FIGS.
The engaging element 23 is formed in a middle and high spherical shape by coating a viscoelastic material such as rubber. For this reason, the shock at the time of the engagement of the twins is alleviated, and the vibration of the car 2 during the elevating operation is reduced, so that the operation can be silenced.
Further, since the engaging element 23 is elastically deformed at the time of the engagement of the twins, abnormal phenomena such as vibration and noise generated at the time of the engagement of the twins due to a manufacturing dimensional error of the twins are eliminated.

Therefore, the car 2 can be moved up and down quietly even if the manufacturing accuracy of the engaging element 23 and the rack 11 is low, so that the manufacturing cost of the drive unit 13 and the rack 11 can be reduced. A rack plate 1 obtained by pressing a thin plate
2 is manufactured, and a plurality of rack plates 12 are stacked to form a rack 1
1 can be manufactured, and the manufacturing cost can be reduced.

Embodiment 2 FIG. 5 and 6 are views showing an example of another embodiment of the present invention, and FIG.
FIG. 6 is a left side view of FIG. Except for FIGS. 5 and 6, the elevator apparatus is configured in the same manner as in FIGS. In the drawings, the same reference numerals as those in FIGS. 1 to 4 denote corresponding parts, and 24 denotes a driving gear constituting a main part of the driving machine 13, which is fixed to the output shaft of the electric motor 16 and has flanges on both sides in the width direction. Is provided.

Reference numeral 25 denotes a driven gear which constitutes another essential part of the drive unit 13, which is pivotally attached to the base 15 and provided with flanges on both sides in the width direction, and is disposed above the drive gear 24. . Reference numeral 26 denotes an annular transmission belt, which is formed by an endless double-sided toothed belt made of a viscoelastic flexible strip, is wound around both the driving gear 24 and the driven gear 25, and the internal teeth 27 are wound around the both. Engaging element 2 which meshes with external teeth
8 meshes with the teeth of the rack 11.

In the elevator apparatus constructed as described above, the driving devices 13 are provided on both sides of the car 2 respectively, and when the electric motor 16 is energized, the annular transmission band 26 is driven, so that the two transmission devices are connected to each other. At the time, the external teeth 28 of the annular transmission band 26 mesh with the rack 11 and the car 2 is moved up and down. Therefore, detailed description is omitted, but FIGS.
In this embodiment, the same operation as that of the embodiment shown in FIGS. 1 to 4 can be obtained.

In the embodiment shown in FIGS. 5 and 6, an annular transmission belt 26 composed of a double-sided toothed belt made of a viscoelastic flexible strip is used. For this reason, the meshing noise between the teeth of the rack 11 and the external teeth 28, and the teeth of the driving gear 24 and the driven gear 25 and the internal teeth 27 can be reduced by the characteristics of the double-sided toothed belt itself, and the operation is quiet. Can be

Embodiment 3 FIG. FIG. 7 also shows an example of another embodiment of the present invention, and FIG. 7 is a diagram corresponding to FIG. 1 described above. Except for FIG. 7, the elevator apparatus is configured in the same manner as in FIGS. In the drawings, the same reference numerals as those in FIGS. 1 to 4 denote corresponding parts, and 29 denotes a guide rail, which is provided along the wall of the hoistway 1 so as to face one side surface of the car 2 and The guides 10 which are arranged apart from each other in the front-rear direction and movably engaged with the respective guide rails 29 are mounted on the car 2.

In the elevator apparatus constructed as described above, the car 2 is provided with the drive unit 13 so that the electric motor 1
6 is energized, the annular transmission band 20 is driven, and the engaging element 2 is interposed between the driving gear 17 and the driven gear 18.
3 engages with the rack 11, and the car 2 is moved up and down.
Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 4 can be obtained in the embodiment of FIG.

Embodiment 4 FIGS. 8 and 9 also show another example of the embodiment of the present invention.
FIG. 9 is a plan view showing the teeth of the driving gear of FIG. Except for FIGS. 8 and 9, the elevator apparatus is configured similarly to FIGS. 1 to 4 described above. In the drawings, the same reference numerals as those in FIGS. 1 to 4 denote corresponding parts, and reference numeral 30 denotes a cushioning piece, which is made of a viscoelastic material such as rubber and is recessed at the tooth bottom of the driving gear 17 and the driven gear 18. One end is fitted in the fitting hole, and the other end is provided to protrude from the tooth bottom.

In the elevator apparatus constructed as described above, the car 2 is provided with the drive unit 13 so that the electric motor 1
6 is energized, the annular transmission band 20 is driven, and the engaging element 23 is disposed between the driving gear 17 and the driven gear 18.
Engages with the rack 11 to move the car 2 up and down. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 4 can be obtained in the embodiment of FIGS.

In the embodiment shown in FIGS. 8 and 9, the cushioning piece 30 is provided at the tooth bottom of the driving gear 17 or the like.
The shock at the time of meshing is buffered. For this reason, basket 2
Vibration and noise during the ascending and descending operation of the vehicle can be reduced, and the operation can be made quieter.

Embodiment 5 FIG. 10 is also a view showing an example of another embodiment of the present invention, and is an enlarged perspective view showing a portion corresponding to a guide in the car shown in FIG. In addition,
Except for FIG. 10, the elevator apparatus is configured in the same manner as in FIGS. In the figure, the same reference numerals as those in FIGS.

Reference numeral 31 denotes a rack provided on the hoistway 1, which also serves as the guide rail 3 in FIG. The rack 31 is formed by stacking a plurality of rack plates 32 formed by pressing a thin plate. A guide 33 is provided on the car 2 and movably engaged with the rack 31 which also serves as a guide rail.

In the elevator apparatus constructed as described above, the car 2 is provided with the driving device 13 so that the electric motor 1
6 is energized, the annular transmission band 20 is driven, and the engaging element 23 is disposed between the driving gear 17 and the driven gear 18.
Meshes with the rack 31 which also serves as the guide rail and the cage 2
Is driven up and down. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 4 can be obtained in the embodiment of FIG.

In the embodiment shown in FIG. 10, a guide 33 movably engaged with a rack 31 also serving as a guide rail is provided on the car 2, and the car 2 can be moved up and down via the guide 33. You will be guided. For this reason, the guide rail 3 in FIG. 1 described above can be omitted, the installation space of the guide rail 3 in the hoistway 1 can be reduced, and the cost of manufacturing and installing the guide rail 3 can be reduced. For this reason, the equipment cost of the elevator device can be reduced.

[0035]

As described above, according to the present invention, when a car is moved up and down a predetermined path of a hoistway, a rack is provided upright on the hoistway along the predetermined path, and a car is provided along the longitudinal direction of the rack. The gear is composed of a gear and a flexible strip that are spaced apart from each other in the direction, and is wound around and meshes with both of the gears. An annular transmission band in which an engagement element meshes with the rack between the two and a motor that drives at least one of the two. And a driving device.

[0036] With this arrangement, the number of meshing teeth can be easily set to an appropriate number in the meshing engagement between the engagement member of the annular transmission band and the rack. For this reason, the meshing load of the pair of twins can be reduced, and the continuity of meshing of the teeth can be obtained, so that the vibration during the elevator operation of the car can be reduced. Therefore, there is an effect of calming up and down operation of the car by the driving device provided in the car.

Further, as described above, the present invention is provided with an annular transmission band comprising a roller chain in which a roller meshes with a gear and an engaging element formed on a pin of the roller meshes with a rack.

[0038] With this arrangement, the number of teeth meshing with each other can be easily set to an appropriate number in the meshing operation between the engaging element of the roller chain and the rack, which constitute the annular transmission band. For this reason, the meshing load of the pair of twins can be reduced, and the continuity of meshing of the teeth can be obtained, so that the vibration during the elevator operation of the car can be reduced. Therefore, there is an effect of calming up and down operation of the car by the driving device provided in the car.

Further, as described above, the present invention is provided with an engaging element composed of an elastic roller on which an elastic substance is adhered.

[0040] With this arrangement, the number of meshing teeth can be easily set to an appropriate number in the meshing of the two members of the rack and the engaging element composed of the elastic roller of the roller chain constituting the annular transmission band. For this reason, the meshing load of the pair of twins can be reduced, and the continuity of meshing of the teeth can be obtained, so that the vibration during the elevator operation of the car can be reduced. Therefore, there is an effect of calming up and down operation of the car by the driving device provided in the car. In addition, since the engagement member made of the elastic roller is provided, the impact at the time of the engagement of the two is reduced,
Vibration during raising and lowering of the car is reduced, which has the effect of silencing the operation. Further, the abnormal phenomenon that occurs when the twins are engaged due to the manufacturing dimensional error of the twins is eliminated by the elastic deformation of the engaging element when the twins are engaged. Therefore, even if the manufacturing accuracy of the two is low, the car can be raised and lowered calmly, and there is an effect of reducing the manufacturing cost of the driving machine and the rack.

Further, as described above, the present invention is provided with an annular transmission band formed of a double-sided toothed belt in which the internal teeth mesh with the gears and the engaging members formed of the external teeth mesh with the teeth of the rack.

In this way, in the case of the double meshing of the rack and the engaging element formed of the teeth of the double-sided toothed belt made of the viscoelastic flexible strip constituting the annular transmission band, the number of meshing teeth can be easily set to a suitable number. Can be set to For this reason, since the meshing load of a pair of the above-mentioned twins can be reduced and the continuity of meshing of the teeth can be obtained,
Vibration during the elevator operation of the car can be reduced. Therefore, there is an effect of calming up and down operation of the car by the driving device provided in the car. In addition, since the engagement member formed of the teeth of the double-sided toothed belt is provided, the shock at the time of engagement of the twins is reduced, vibration during the elevator operation of the car is reduced, and there is an effect of making the operation quieter. . Further, the abnormal phenomenon that occurs when the twins are engaged due to the manufacturing dimensional error of the twins is eliminated by the elastic deformation of the engaging element when the twins are engaged. Therefore, even if the manufacturing accuracy of the two is low, the car can be raised and lowered calmly, and there is an effect of reducing the manufacturing cost of the driving machine and the rack.

Further, as described above, the present invention is provided with a rack constituted by laminating a plurality of rack plates formed by pressing thin plates.

With this arrangement, in the case of the double meshing of the engaging member of the annular transmission band and the rack formed by stacking a plurality of rack plates, the number of meshing teeth can be easily set to an appropriate number. . For this reason, the meshing load of the pair of twins can be reduced, and the continuity of meshing of the teeth can be obtained, so that the vibration during the elevator operation of the car can be reduced. Therefore, there is an effect of calming up and down operation of the car by the driving device provided in the car. Further, since a rack is formed by stacking a plurality of rack plates formed by pressing a thin plate, there is an effect of reducing manufacturing costs.

Further, as described above, the present invention is provided with a buffer piece provided at the tooth bottom of the gear to buffer the engagement operation with the roller of the annular transmission band.

[0046] With this arrangement, the number of meshing teeth can be easily set to an appropriate number in the meshing between the engaging members of the roller chain and the rack, which constitute the annular transmission band. For this reason, the meshing load of the pair of twins can be reduced, and the continuity of meshing of the teeth can be obtained, so that the vibration during the elevator operation of the car can be reduced. Therefore, there is an effect of calming up and down operation of the car by the driving device provided in the car. Also,
Since the engagement with the rollers of the annular transmission band is buffered by the buffering pieces provided at the gear tooth bottoms, the noise during the raising and lowering operation of the car is reduced, and there is an effect of making the operation quieter.

Further, as described above, the present invention is provided with a rack which also serves as a guide rail, and is provided with a guide tool movably engaged with the rack.

[0048] With this arrangement, in the engagement between the engagement member of the annular transmission band and the two members of the rack, the number of meshing teeth can be easily set to an appropriate number. For this reason, the meshing load of the pair of twins can be reduced, and the continuity of meshing of the teeth can be obtained, so that the vibration during the elevator operation of the car can be reduced. Therefore, there is an effect of calming up and down operation of the car by the driving device provided in the car. In addition, the elevation of the car is guided by a rack that also serves as a guide rail. Thereby, the guide rail can be omitted, and the installation space of the guide rail in the hoistway can be reduced. In addition, the cost of manufacturing and installing the guide rail can be reduced, and the equipment cost of the elevator device can be reduced.

[Brief description of the drawings]

FIG. 1 shows the first embodiment of the present invention, and is a cross-sectional plan view of a hoistway provided with a car.

FIG. 2 is a front view corresponding to FIG. 1;

FIG. 3 is an enlarged longitudinal sectional view showing a main part of FIG. 2;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a view showing a second embodiment of the present invention, and is a view corresponding to FIG. 3 described above.

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is a view showing a third embodiment of the present invention, and is a view corresponding to FIG. 1 described above.

FIG. 8 is a view showing a fourth embodiment of the present invention, and is an equivalent view showing an enlarged main part of FIG. 4 described above;

FIG. 9 is a plan view of the teeth of the driving gear of FIG. 8;

FIG. 10 is a view showing a fifth embodiment of the present invention, and is an enlarged perspective view showing a portion corresponding to a guide in the car of FIG. 1 described above.

FIG. 11 is a perspective view conceptually showing a conventional elevator apparatus, in which a car provided in a hoistway is cut off.

[Explanation of symbols]

Reference Signs List 1 hoistway, 2 cars, 11 racks, 12 rack plates, 13 drive motor, 16 electric motor, 17 drive gear (gear), 18 follower gear (gear), 19 roller, 20
Annular transmission band, 22 pins, 23 engaging element, 24 driving gear (gear), 25 driven gear (gear), 26 annular transmission band, 27 internal teeth, 28 engaging element, 30 cushioning piece,
31 racks, 33 guides.

Claims (7)

[Claims] A step of moving up and down a predetermined path of the hoistway, a rack erected on the hoistway along the predetermined path,
A ring provided with the cage and arranged at a distance from each other in a direction along the length of the rack, and formed of a flexible strip, wound around and meshed with both of the gears, and an engagement element meshes with the rack between the two. An elevator apparatus comprising: a transmission band; and a drive unit configured by a motor that drives at least one of the two. 2. The elevator apparatus according to claim 1, wherein the annular transmission band is formed by a roller chain in which a roller meshes with a gear, and an engaging element formed on a pin of the roller meshes with a rack. 3. The elevator apparatus according to claim 2, wherein the engaging element is formed of an elastic roller on which an elastic substance is adhered. 4. An annular transmission band, wherein the internal teeth mesh with the gear,
2. The elevator apparatus according to claim 1, wherein the engaging element comprising the external teeth comprises a double-sided toothed belt meshing with the teeth of the rack. 5. The rack according to claim 3, wherein the rack is formed by laminating a plurality of rack plates formed by pressing a thin plate. Elevator equipment. 6. The elevator apparatus according to claim 2, further comprising a buffer piece provided at a tooth bottom of the gear to buffer an engagement operation with a roller of an annular transmission band. 7. The elevator apparatus according to claim 1, further comprising a guide movably engaged with a rack provided on the car and standing upright.