WO2012060007A1

WO2012060007A1 - Elevator

Info

Publication number: WO2012060007A1
Application number: PCT/JP2010/069681
Authority: WO
Inventors: 岳史新川
Original assignee: 三菱電機株式会社
Priority date: 2010-11-05
Filing date: 2010-11-05
Publication date: 2012-05-10
Also published as: CN103189295A; CN103189295B; JP5570612B2; EP2636627A4; EP2636627A1; JPWO2012060007A1; KR20130095787A; EP2636627B1

Abstract

Provided is an elevator that avoids interference with equipment in a machine room and wherein a speed regulator can be arranged such that a worker passageway and a maintenance space are secured. The elevator (1) comprises a hoistway (3) and the machine room (5) positioned in the upper part thereof. At least a hoist (13) and the speed regulator (15) are arranged inside the machine room. A speed regulator housing space (35) that opens to the upper surface of a machine room floor (17) is formed in the machine room floor which forms the bottom surface of the machine room. The speed regulator is arranged inside the speed regulator housing space such that the base section of the speed regulator is at a position lower than the upper surface (33) of the machine room floor.

Description

elevator

The present invention relates to an elevator equipped with a governor.

The elevator has a hoistway that extends vertically and a car that is movably provided in the hoistway. A machine room is provided above the hoistway, and a hoisting machine, a speed governor, a control panel, and the like are accommodated therein. The hoisting machine raises and lowers the car by driving a rope connected to the car. The speed governor adjusts the lifting speed of the car. When the lifting speed exceeds the specified value, the speed governor rope is restrained to restrain the emergency speed The emergency braking device is actuated via the stop-lift device.

As an installation aspect of the hoisting machine in the machine room, for example, there is an aspect disclosed in Patent Document 1, in which the machine base is placed on a floating stand provided in the machine room. It was placed on the table.

Moreover, as an installation mode of the governor in the machine room, for example, there is a mode disclosed in Patent Document 2. This mode is for adjusting the tension of the governor rope. A pair of guide rails are erected on the floor slab of the machine room, and the governor is attached to the guide rails. It was. And it became possible to change the tension | tensile_strength of a governor rope by moving a governor along those guide rails.

By the way, the position of the governor in the elevator machine room is to avoid interference with other equipment in the machine room such as hoisting machines, machine tables, control panels, etc., and to secure a passage for maintenance personnel and maintenance space for each equipment. It is necessary to decide in consideration of And when each apparatus cannot be arrange | positioned in a required position, the problem that a machine room size must be changed a lot arises.

JP 63-012580 A Japanese Patent Application Laid-Open No. 07-125946

The present invention has been made in view of the above, and an object thereof is to provide an elevator capable of arranging a governor that avoids interference with equipment in a machine and secures a worker passage and a maintenance space. And

In order to achieve the above-described object, the present invention is an elevator including a hoistway and a machine room positioned above the hoistway, and at least a hoisting machine and a speed governor are disposed in the machine room. The machine room floor constituting the bottom surface of the machine room is formed with a governor accommodating space that opens to the upper surface of the machine room floor, and the governor has a bottom part of the governor on the machine room floor. It arrange | positions in the said governor accommodation space so that it may be in a position lower than a surface.

According to the elevator of the present invention, it is possible to arrange a speed governor that avoids interference with equipment in the machine and secures a worker passage and maintenance space.

It is a figure showing typically composition of an elevator concerning an embodiment of the invention. FIG. 3 is a diagram showing an installation mode of the governor in the first embodiment. It is a figure which shows the installation aspect of the governor as a comparative example. It is a figure of the same aspect as FIG. 2 regarding Embodiment 2. FIG. FIG. 10 is a diagram illustrating a lowered position of the governor according to the third embodiment. FIG. 11 is a diagram illustrating an ascending position of the governor according to the third embodiment. It is a figure which shows the floor flattening position of the governor in Embodiment 4. FIG. FIG. 10 is a diagram illustrating a governor maintenance position of a governor according to a fourth embodiment. It is a figure which shows the floor flattening position of the governor in Embodiment 5. FIG. FIG. 10 is a diagram illustrating a governor maintenance position of a governor according to a fifth embodiment. It is a top view which projects the positional relationship of the component in a machine room and a hoistway about the elevator of Embodiment 6. FIG. FIG. 16 is a diagram illustrating a normal position and a retracted position of the governor according to the sixth embodiment. It is a top view regarding the speed governor and mounting board of FIG. FIG. 20 is a diagram illustrating a governor in a floor flattening position and a normal position in the seventh embodiment. FIG. 16 is a diagram illustrating a governor in a governor maintenance position and a retracted position with respect to the seventh embodiment. It is a top view regarding the speed governor and mounting plate of FIG. FIG. 13 is a diagram similar to FIG. 12 regarding the eighth embodiment. FIG. 15 is a diagram similar to FIG. 14 with respect to the ninth embodiment. FIG. 16 is a diagram similar to FIG. 15 with respect to the ninth embodiment.

Hereinafter, an elevator according to an embodiment of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

Embodiment 1 FIG.
FIG. 1 is a diagram schematically showing the configuration of the elevator according to the present embodiment. The elevator 1 includes a hoistway 3 extending vertically and a machine room 5 positioned above the hoistway 3. A car 7 and a counterweight 9 are provided in the hoistway 3. The car 7 is provided so that it can be raised and lowered by being guided by a pair of car guide rails 11 extending vertically in the hoistway 3. Further, the counterweight 9 is also provided so as to be lifted and lowered so as to be guided by a similar guide rail (not shown).

In the machine room 5, at least a hoisting machine 13, a speed governor 15, and a control panel / power receiving panel (not shown in FIG. 1) are arranged. As is well known, the machine room floor 17 is provided with a floating stand (not shown), on which a machine stand (not shown) is arranged, and further, the hoisting machine 13 is placed on the machine stand. It is placed. In addition, the control panel / power receiving board, the floating base, and the machine base may be arranged as shown in FIG.

A main rope 19 is wound around the sheave of the hoisting machine 13. One end of the main rope 19 is connected to the car 7, and a counterweight 9 is connected to the other end. When the main rope 19 is driven by the hoisting machine 13, the car 7 and the counterweight 9 are raised and lowered in opposite directions.

Below the governor 15 in the hoistway 3, a tension wheel 21 is provided. A governor rope 23 is wound between the governor 15 and the tensioning wheel 21. The car 7 is provided with an emergency braking device 25. The emergency braking device 25 is connected to the governor rope 23 via an emergency stop pulling device 31 including a lift rod 27, a safety link 29, and the like. Yes.

The governor rope 23 is configured to circulate in accordance with the elevation of the car 7 during normal elevator operation, and the elevation speed of the car 7 is adjusted via the governor 15. For example, when the descending speed of the car 7 adjusted by the governor 15 exceeds a predetermined value for some reason while the car 7 is descending, the governor 15 grips the governor rope 23. And restrain the movement of the rope. As a result, the safety link 29 moves so as to absorb the relative position change between the governor rope 23 to be stopped and the car 7 that continues to descend. In accordance with this movement, the lift rod 27 is lifted as viewed from the car 7, and a braking member (not shown) in the emergency braking device 25 is actuated by the operation of the lift rod 27, and the car 7 is subjected to emergency braking.

Subsequently, the installation mode of the governor will be described with reference to FIG. FIG. 2 is a view showing the vicinity of the speed governor installed in the machine room. On the machine room floor 17 constituting the bottom surface of the machine room 5, a governor accommodating space 35 that opens to the machine room floor upper surface 33 is formed. The governor housing space 35 has a housing space bottom surface 35a constituted by the machine room floor 17, and a support plate 41 is fixed on the housing space bottom surface 35a. The governor 15 is placed on the support plate 41. Further, the speed governor 15 is disposed in the speed governor accommodating space 35 so that the speed governor bottom portion 15 a is at a position lower than the machine room floor upper surface 33.

The opening 37 of the governor accommodating space 35 generated on the machine room floor 33 is covered with a cover 39 in a state where the governor 15 is accommodated in the governor accommodating space 35. The cover 39 is detachably attached to the machine room floor 17, and is constituted by a steel plate in the present embodiment as an example.

According to the elevator according to the present embodiment configured as described above, the speed governor is arranged in such a manner as to avoid the interference with the equipment in the machine and further secure the worker passage and the maintenance space. be able to. That is, as a comparison mode, as shown in FIG. 3, when the speed governor 15 is arranged as it is on the uniformly flat machine room floor upper surface 33 ′, the speed governor 15 is a hoisting machine, a machine base, There are problems in that it interferes with other devices in the machine room such as a control panel, and it becomes difficult to secure a passage for maintenance personnel and a maintenance space for each device. Furthermore, when all the devices cannot be arranged at a position where such a problem can be solved, there is a problem that the size of the machine room must be greatly changed. On the other hand, in this embodiment, as shown in FIG. 2, the speed governor 15 is embedded in the machine room floor 17, so that the space in the machine room 5 can be used effectively. Interference with indoor equipment can be avoided. As an example, even in a layout in which the governor is below the machine base and the speed governor and a part of the machine base are aligned vertically, interference between the governor and the machine base can be avoided. Alternatively, the necessary maintenance space for the speed governor can be secured even when the machine base is above. Also, if the speed governor is installed at a position far away from the machine base with the aim of avoiding the interference between the speed governor and the machine base, the presence of the speed governor will be Although a problem of eroding the maintenance space of each device may occur, in the present embodiment, such a problem can be avoided by the above configuration.

Further, in the present embodiment, the opening 37 of the governor housing space 35 is covered with the removable cover 39 together with the governor 15, thereby effectively utilizing the machine room space. . That is, if the cover 39 is removed, maintenance of the speed governor 15 can be performed without any trouble, and when the equipment other than the speed governor 15 is maintained, the cover 39 is attached so that the space above the speed governor 15 can be maintained. Can be used effectively as a worker passage and maintenance space.

Embodiment 2. FIG.
FIG. 4 is a diagram illustrating an installation mode of the speed governor with respect to the elevator according to the second embodiment. In addition, the elevator of this Embodiment shall be the same as the elevator of the said Embodiment 1 except the installation aspect of the governor demonstrated below. On the machine room floor 17 constituting the bottom surface of the machine room 5, a governor accommodating space 235 that opens to the machine room floor upper surface 33 is formed.

The governor accommodating space 235 is a through space without a bottom surface. A plurality of support rods 248 are suspended toward the hoistway around the governor accommodating space 235 on the lower surface of the machine room floor 17. The mounting plate 243 is suspended and fixed by the support rods 248. The governor 15 is placed on the placement plate 243. That is, the governor 15 is supported in a suspended manner with respect to the machine room floor 17. Further, the governor 15 is disposed in the governor accommodating space 235 so that the bottom of the governor is at a position lower than the machine room floor upper surface 33.

According to the second embodiment configured as described above, as in the first embodiment, the space in the machine room 5 can be used effectively, avoiding interference with equipment in the machine room, It is possible to provide an arrangement of a governor that can easily secure a maintenance space. In addition, in the present embodiment, the space of the hoistway can be used for the arrangement of the speed governor, and thereby the passage and space in the machine room can be further promoted. Furthermore, depending on the property of the structure, the machine room floor may have to be thinned, but even in this case, in this embodiment, the governor accommodating space is secured as in the first embodiment. Therefore, it is possible to arrange the governor capable of avoiding the above-described interference and ensuring space without deeply digging the machine room floor. Alternatively, according to the present embodiment, it is possible to realize a thinner machine room floor while enjoying the above-described benefits of avoiding interference and ensuring space.

Embodiment 3 FIG.
5 and 6 are diagrams showing an installation mode of the governor for the elevator according to the third embodiment. In addition, the elevator of this Embodiment shall be the same as the elevator of the said Embodiment 1 except the installation aspect of the governor demonstrated below. On the machine room floor 17 constituting the bottom surface of the machine room 5, a governor accommodating space 135 that opens to the machine room floor upper surface 33 is formed. As will be described later, the governor 15 is provided in the governor accommodating space 135 in such a manner that it can be moved up and down between the raised position and the lowered position.

The governor housing space 135 has a housing space bottom surface 135a constituted by the machine room floor 17, and a support plate 141 is fixed on the housing space bottom surface 135a. Further, a placement plate 143 is disposed above the support plate 141 in the governor accommodating space 135. The governor 15 is placed on the placement plate 143.

A support structure 145 is interposed between the lower surface of the mounting plate 143 and the accommodation space bottom surface 135a. The speed governor 15 is configured to be raised and lowered by changing the extension amount of the support structure 145 extending upward from the accommodation space bottom surface 135a. The support structure 145 includes a plurality of jack bolts 147 in the present embodiment. At least two fixing nuts 149 are screwed into each of the jack bolts 147, and the support plate 141 is disposed between the fixing nuts 149. By performing an operation of tightening or loosening these fixing nuts 149, the position (the extension amount) of the jack bolt 147 with respect to the support plate 141 (accommodating space bottom surface 135a) is changed or fixed. Since a plurality of jack bolts are used, it can also be used for level adjustment of the governor.

A plurality of rope through passages 151 through which the governor rope 23 is inserted are formed in the accommodation space bottom surface 135a. A lower end side portion of each of the jack bolts 147 is accommodated in the corresponding rope through passage 151. The upper ends of the jack bolts 147 are connected to the lower surface of the mounting plate 143.

FIG. 6 is a diagram showing the governor being lifted. The position of the governor 15 in FIG. 6 is an example of an ascending position, and the position of the governor 15 in FIG. 5 is an example of a descending position. Further, as an example, the speed governor 15 is disposed in the speed governor accommodating space 135 so that the bottom of the speed governor is at a position lower than the machine room floor upper surface 33 in both the raised position and the lowered position. Yes.

The opening 37 of the governor accommodating space 135 generated in the machine room floor 33 is covered with a cover 39 when the governor 15 is in the lowered position. The cover 39 is detachably attached to the machine room floor 17.

According to the third embodiment configured as described above, as in the first embodiment, the space in the machine room 5 can be used effectively, avoiding interference with equipment in the machine room, and the worker passage. It is possible to provide a speed governor arrangement that can easily secure a maintenance space. Further, if the speed governor is raised as shown in FIG. 6, the maintainability is improved such that the lower part of the speed governor can be easily reached.

Further, in this embodiment, since the lower surface of the mounting plate is supported from below, it is not necessary to use a large number of components such as the rail means and the guide means engaged with the rail described in Patent Document 2 described above. In other words, complicated structures can be avoided. Furthermore, since the lower surface of the mounting plate itself is supported from below, it can be supported directly in the direction of gravity, and the supporting force is supported by the bottom of the accommodation space of the governor accommodation space, which is a part of the machine room floor. Since it takes charge, it is possible to provide a configuration in which it is easier to ensure strength.

In addition, when the jack bolts are employed as the support structure, in the present embodiment, the jack bolts are respectively arranged by using a rope through passage for inserting the governor rope. Therefore, it is not necessary to individually provide a dedicated accommodation space for raising and lowering the jack bolts, and it is possible to avoid complicated construction and increase in construction cost.

Embodiment 4 FIG.
7 and 8 are diagrams illustrating an installation mode of the governor with respect to the elevator according to the fourth embodiment. In addition, the elevator of this Embodiment shall be the same as the elevator of the said Embodiment 1 except the installation aspect of the governor demonstrated below. In addition, detailed description of a part of the configuration indicated by the same reference numerals as in the third embodiment is omitted.

In the present embodiment, as described later, the speed governor 15 can be moved up and down between the speed governor maintenance position (up position) and the floor flattening position (down position), as described later. 135 is provided.

FIG. 8 is a diagram showing the governor being lifted. The position of the governor 15 in FIG. 8 is an example of a governor maintenance position. In the governor maintenance position, the upper end of the governor 15 in the governor accommodating space 135 is from the machine room floor upper surface 33. It will be a higher position. The position of the governor 15 in FIG. 7 is an example of a floor flattening position. The floor flattening position is such that the upper end of the governor 15 in the governor accommodating space 135 is lower than the machine room floor upper surface 33. It is a position. Further, as an example, the speed governor 15 includes the speed governor accommodation space 135 so that the bottom of the speed governor is located lower than the machine room floor top surface 33 in both the speed governor maintenance position and the floor flattening position. Is placed inside.

The opening 37 of the governor accommodating space 135 generated in the machine room floor upper surface 33 is covered with a cover 139 when the governor 15 is in the floor flattening position. The cover 139 is detachably attached to the machine room floor 17. Further, as shown in FIG. 7, the cover 139 according to the present embodiment has a flat plate shape because the upper end of the governor 15 does not protrude above the machine room floor upper surface 33 in the floor flattening position. Yes. Therefore, when the cover 139 is attached, the cover 139 extends along the machine room floor upper surface 33, as if the opening 37 originally does not exist, and above the governor 15, a generally flat machine Provide a floor.

According to the fourth embodiment configured as described above, as in the first embodiment, the space in the machine room 5 can be used effectively, avoiding interference with equipment in the machine room, and the worker passage. It is possible to provide a speed governor arrangement that can easily secure a maintenance space. In addition, the third embodiment provides the following specific advantages.

First, in the present embodiment, the governor accommodating space 135 is dug deeper than the governor accommodating space 35 of the first embodiment, and the upper end of the governor 15 is above the machine room floor in the floor flattening position of FIG. Since the space is lower than the surface 33, the space above the governor 15 covered with the cover 139 can be used freely, that is, the machine room floor upper surface 33 in a portion where the governor accommodating space 135 is not formed. Can be used at the same level. On the other hand, if the upper end of the governor 15 is made lower than the machine room floor upper surface 33 in order to realize space utilization with almost no restrictions, maintenance work is performed on the governor 15 as a reflective action. When trying to do so, there is a problem that workability deteriorates. However, in the present embodiment, when maintenance work is performed on the governor 15, it is possible to obtain a state in which maintenance is easy by raising the governor 15 to the governor maintenance position in FIG. it can. That is, it is possible to achieve both space utilization and ease of maintenance at a higher level.

Embodiment 5 FIG.
FIGS. 9 and 10 relate to the elevator according to the fifth embodiment and are the same as FIGS. 7 and 8 in the fourth embodiment. In addition, the elevator of this Embodiment shall be the same as the elevator of the said Embodiment 1 except the installation aspect of the governor demonstrated below. On the machine room floor 17 constituting the bottom surface of the machine room 5, a governor accommodating space 235 that opens to the machine room floor upper surface 33 is formed. Also in this embodiment, the governor 15 is provided in the governor accommodating space 235 in such a manner that it can be moved up and down between the governor maintenance position (up position) and the floor flattening position (down position). Yes.

The governor accommodating space 235 is a through space without a bottom surface. A plurality of jack bolts 247 are suspended toward the hoistway around the governor accommodating space 235 on the lower surface of the machine room floor 17. A mounting plate 243 is attached to the plurality of jack bolts 247 so as to be movable up and down. The governor 15 is placed on the placement plate 243.

At least two fixing nuts 249 are screwed into each of the jack bolts 247, and the mounting plate 243 is disposed between the fixing nuts 249. By performing an operation of tightening or loosening these fixing nuts 249, the position of the mounting plate 243 with respect to the jack bolt 247 is changed or fixed. Thus, the speed governor 15 is moved up and down by changing the position of the mounting plate 243 with respect to the plurality of jack bolts 247.

FIG. 10 is a diagram showing the governor being lifted. The position of the speed governor 15 in FIG. 10 is an example of a speed governor maintenance position. In the speed governor maintenance position, the upper end of the speed governor 15 in the speed governor accommodating space 235 is from the machine room floor upper surface 33. It will be a higher position. The position of the governor 15 in FIG. 9 is an example of a floor flattening position. In the floor flattening position, the upper end of the governor 15 in the governor accommodating space 235 is lower than the machine room floor upper surface 33. It is a position. Further, as an example, the speed governor 15 includes the speed governor accommodating space 235 so that the bottom of the speed governor is lower than the machine room floor top surface 33 in both the speed governor maintenance position and the floor flattening position. Is placed inside.

The opening 37 of the governor accommodating space 235 generated in the machine room floor upper surface 33 is covered with a cover 139 when the governor 15 is in the floor flattening position. The cover 139 is detachably attached to the machine room floor 17. Further, as shown in FIG. 9, the cover 139 of the present embodiment has a flat plate shape because the upper end of the governor 15 does not protrude above the machine room floor upper surface 33 in the floor flattening position. Yes. Therefore, when the cover 139 is attached, the cover 139 extends along the machine room floor upper surface 33 as in the case of the fourth embodiment, and the state is as if the opening 37 originally does not exist. A generally flat machine room floor is provided above the machine 15.

According to the fifth embodiment configured as described above, as in the first embodiment, the space in the machine room 5 can be used effectively, avoiding interference with equipment in the machine room, and the worker passage. It is possible to provide a speed governor arrangement that can easily secure a maintenance space. In addition, the fifth embodiment provides the following specific advantages.

First, in the present embodiment, the governor accommodating space 235 is a through space without a bottom, and the upper end of the governor 15 can be made lower than the machine room floor upper surface 33 in the floor flattening position of FIG. The space above the governor 15 covered with 139 can be used freely, that is, at the same level as the upper surface 33 of the machine room floor where the governor accommodating space 135 is not formed. . On the other hand, if the upper end of the speed governor 15 is made lower than the machine room floor upper surface 33 as in the fourth embodiment, there is a problem of deterioration in maintenance workability for the speed governor 15. In contrast, in the present embodiment, it is possible to obtain a state in which maintenance is easy by raising the governor 15 to the governor maintenance position. That is, it is possible to achieve both space utilization and ease of maintenance at a higher level.

Further, in the present embodiment, the speed governor is supported on the lower surface thereof, and therefore, for example, a large number of guide means as in the case of supporting the side portion of the speed governor as in Patent Document 2 described above are provided. It is not necessary to use it, and a complicated structure can be avoided. Further, in the present embodiment, as shown in FIG. 9, the space of the hoistway can be used for the arrangement of the floor flattening position of the governor, and the passage and space in the machine room can be further secured. I can recommend it. Furthermore, even when the machine room floor has to be thinned, the arrangement of the speed governor capable of avoiding the interference and securing the space described above without deeply digging the machine room floor in order to secure the space for accommodating the speed governor. Yes. Alternatively, the machine room floor can be thinned.

Embodiment 6 FIG.
An elevator according to Embodiment 6 of the present invention will be described with reference to FIGS. In addition, the elevator of this Embodiment shall be the same as the elevator of the said Embodiment 1 except the structure demonstrated below.

FIG. 11 is a plan view showing, in a projected manner, the positional relationship between components disposed in the machine room and the hoistway with respect to the elevator according to the sixth embodiment. The machine room 5 is configured by a machine room wall 351. Inside the machine room 5, a hoisting machine 13, a speed governor 15, a control panel 353, a power receiving panel 355, and the like are mainly accommodated. Reference numeral 357 denotes a door for entering and exiting the machine room 5.

The machine room floor 17 is provided with a float 359. A machine table 361 is disposed on the floating table 359. The hoisting machine 13 is placed on a machine table 361. A car 7 and a counterweight 9 exist below the machine base 361 in the hoistway 3. Further, in the hoistway 3, emergency braking as shown by reference numeral 25 or reference numeral 31 in FIG. 1 is omitted although it is not shown in FIG. 11 when it is located below a part of the machine base 359 or the speed governor 15. There are devices and emergency stop lifting devices.

The installation mode of the governor according to the present embodiment will be described with reference to FIGS. The governor 15 can be shifted between a normal position (for example, a position during elevator operation) and a retreat position (for example, a position when the elevator is not operated) arranged in the horizontal direction (for example, the horizontal direction). ing.

12, the speed governor 15 is below the machine base 361, that is, the speed governor 15 and at least a part of the machine base 361 are arranged in the vertical direction. This state is an example of the normal position of the governor 15, and the normal position is a position where the governor 15 overlaps at least a part of the machine base 361 in plan view. On the other hand, the position of the governor 15 indicated by a dotted line in FIG. 12 is a retracted position, and the retracted position is a position where the governor 15 is shifted from the machine base 361 in plan view.

The machine room floor 17 is formed with a governor accommodating space 335 that opens to the machine room floor upper surface 33. The governor accommodating space 335 is a through space without a bottom surface. A plurality of support rods 248 are suspended toward the hoistway around the governor accommodating space 335 on the lower surface of the machine room floor 17. A mounting plate 343 is attached to the plurality of support rods 248 so as to be movable up and down. The governor 15 is placed on the placement plate 343.

The mounting plate 343 extends so as to include a range below the machine base 361 and a range shifted laterally from the machine base 361 in plan view. In other words, the speed governor is in the normal position as will be described later. And it extends in the lateral direction to such an extent that the retracted position can be taken.

FIG. 13 is a plan view of the governor and the mounting plate in the retracted position. The placement plate 343, which is a portion that supports the speed governor 15 from below, is formed with a rope arrangement path as a slide facilitating means, that is, a through long hole 365 in the present embodiment. The governor rope 23 is inserted into the through long hole 365 so as to extend into the hoistway. Further, the through-hole 365 is formed so as to expand in a direction that allows the movement of the governor rope 23 according to the change in the lateral position of the governor 15. Therefore, when the speed governor 15 is slid between the normal position and the retracted position, the speed governor rope 23 does not have to be detached from the speed governor 15 each time, and the sliding operation of the speed governor 15 can be easily performed. I have to.

Referring back to FIG. 12, the opening 37 of the governor accommodating space 335 is covered with a cover 339 when the governor 15 is in the floor flattening position. The cover 339 is detachably attached to the machine room floor 17 and has the same action as the cover 139 of FIG. 7, and has a substantially flat machine room floor as if the opening 37 originally does not exist. , Provided above the governor 15.

According to the sixth embodiment configured as described above, as in the first embodiment, the space in the machine room 5 can be used effectively, avoiding interference with equipment in the machine room, It is possible to provide an arrangement of a governor that can easily secure a maintenance space. In addition, the sixth embodiment provides the following specific advantages.

First, in the present embodiment, the governor accommodating space 335 is a through space without a bottom, and the upper end of the governor 15 can be made lower than the machine room floor upper surface 33 in the floor flattening position of FIG. The space above the speed governor 15 covered with can be used freely, that is, at the same level as the machine room floor upper surface 33 where the speed governor accommodation space 335 is not formed.

Also, as a layout in the machine room, the speed governor is preferably arranged near the emergency stop lifting device in the hoistway in consideration of its function. However, when trying to arrange the speed governor according to the emergency stop pulling device like this, the machine base supporting the hoisting machine etc. and the speed governor are close to each other, and the maintainability of the speed governor is good. Depending on the conditions, the speed governor may interfere with the machine base itself, which may make it difficult to arrange the speed governor according to the emergency stop lifting device. In addition, as a measure to avoid such a problem, a configuration in which a notch is formed in the machine base to eliminate interference between the machine base and the governor is assumed, but in this case, how to improve the strength of the machine base this time. The problem is whether to secure it. Furthermore, from the circumstances described above, it is also possible to give up the speed governor in the vicinity of the emergency stop pulling device and to displace it from the vicinity of the top, but in that case, this time, Because of the misalignment between the governor and the emergency stop pull-up device, the governor rope interferes with the equipment in the hoistway, or when the governor rope is shifted and placed, the type of equipment in the hoistway Or a new problem arises. In this embodiment, for example, when the elevator is in operation or not in operation, the governor is not maintained for the problem caused by the positional relationship between the governor and the machine base. Sometimes, the speed governor is positioned at a normal position as shown by a solid line in FIG. 12 so that the speed governor is positioned almost directly above the emergency stop pulling device without being obstructed by the presence of the machine base. Can be placed.

On the other hand, if the speed governor is arranged at a position almost directly above the emergency stop pulling device as described above, there is a concern that the maintenance workability for the speed governor is considerably deteriorated due to the presence of the machine base. . However, at the time of maintenance of the speed governor, the speed governor can be detached from just below the machine base by sliding the speed governor to the retracted position as shown by a dotted line in FIG. . As described above, according to the present embodiment, it is possible to achieve both a realization of a difficult layout in which the emergency stop pulling device, the governor, and the machine base are substantially aligned vertically during elevator operation, and ease of maintenance. Yes.

Embodiment 7 FIG.
An elevator according to Embodiment 7 of the present invention will be described with reference to FIGS. In addition, the elevator of this Embodiment shall be the same as the elevator of the said Embodiment 6 except the structure demonstrated below.

The speed governor 15 according to the present embodiment can move up and down between the speed governor maintenance position (up position) and the floor flattening position (down position), and in addition, can move between the normal position and the retracted position. It is possible to shift the position in the direction (for example, the horizontal direction).

As shown in FIG. 14, the speed governor 15 is below the machine base 361, that is, the speed governor 15 and at least a part of the machine base 361 are aligned in the vertical direction. The state of FIG. 14 is an example of a floor flattening position of the governor 15 and is also an example of a normal position. The normal position is a position where the speed governor 15 overlaps at least a part of the machine base 361 in plan view.

The machine room floor 17 is formed with a governor accommodating space 335 that opens to the machine room floor upper surface 33. The governor accommodating space 335 is a through space without a bottom surface. A plurality of jack bolts 247 are suspended toward the hoistway around the governor accommodating space 335 on the lower surface of the machine room floor 17. A mounting plate 343 is attached to the plurality of jack bolts 247 so as to be movable up and down. The governor 15 is placed on the placement plate 343.

At least two fixing nuts 249 are screwed to each jack bolt 247, and the mounting plate 343 is disposed between the fixing nuts 249. By performing an operation of tightening or loosening these fixing nuts 249, the position of the mounting plate 343 with respect to the jack bolt 247 is changed or fixed. In this manner, the position of the mounting plate 343 is changed with respect to the plurality of jack bolts 247, so that the speed governor 15 is raised and lowered between the speed governor maintenance position and the floor flattening position.

FIG. 15 is a diagram illustrating an example of the governor maintenance position and the retreat position. FIG. 16 is a plan view relating to the speed governor and the mounting plate in the state of FIG. The retracted position is a position where the governor 15 is shifted from the machine base 361 in plan view.

The mounting plate 343 is formed with a rope arrangement path as a means for facilitating sliding, that is, a through long hole 365 in the present embodiment. The governor rope 23 is inserted into the through long hole 365 so as to extend into the hoistway. Further, the through-hole 365 is formed so as to expand in a direction that allows the movement of the governor rope 23 according to the change in the lateral position of the governor 15. Therefore, when the speed governor 15 is slid between the normal position and the retracted position, the speed governor rope 23 does not have to be detached from the speed governor 15 each time, and the sliding operation of the speed governor 15 can be easily performed. I have to.

14, the opening 37 of the governor accommodating space 335 is covered with a cover 339 when the governor 15 is in the floor flattening position. The cover 339 is detachably attached to the machine room floor 17 and has the same action as the cover 139 of FIG. 7, and has a substantially flat machine room floor as if the opening 37 originally does not exist. , Provided above the governor 15.

According to the seventh embodiment configured as described above, similarly to the first embodiment, the space in the machine room 5 can be used effectively, avoiding interference with the machine room equipment, It is possible to provide an arrangement of a governor that can easily secure a maintenance space. In addition, the seventh embodiment provides the following specific advantages.

Furthermore, in the present embodiment, the governor is supported on the lower surface thereof, and therefore, it is not necessary to use a large number of guide means as in the case of supporting the side portion of the governor. Can be avoided. Further, in the present embodiment, as shown in FIG. 14, the space of the hoistway can be used for the arrangement of the floor flattening position of the governor, and the passage and space in the machine room can be further secured. I can recommend it.

Further, in order to solve the problem caused by the positional relationship between the speed governor and the machine base described in connection with the sixth embodiment, the speed governor is in the floor flattening position as shown in FIG. By positioning in the normal position, the speed governor can be arranged at a desired position almost directly above the emergency stop lifting device without being obstructed by the presence of the machine base.

On the other hand, if the speed governor is arranged at a position almost directly above the emergency stop lifting device as described above, and the upper end of the speed governor is made lower than the upper surface of the machine room floor, maintenance workability for the speed governor is improved. There are concerns that it will get worse. However, in response to this, during maintenance of the governor, the machine base is moved by sliding the governor to the retracted position and raising the governor to the governor maintenance position as shown in FIG. Sufficient maintenance space can be obtained without getting in the way. That is, in the normal position, the speed governor cannot be jacked up to the speed governor maintenance position, and the maintainability is not good, but the speed governor can take the retracted position, The speed governor can be jacked up, and at the speed governor maintenance position after jacking up, it is possible to create a desirable maintenance state in which there is no machine table directly above the speed governor. As described above, according to the present embodiment, it is possible to achieve both a realization of a difficult layout in which the emergency stop pulling device, the governor, and the machine base are substantially aligned vertically during elevator operation, and ease of maintenance. Yes.

Embodiment 8 FIG.
The surface that supports the governor from below may be inclined between the normal position and the retracted position. As an example, the eighth embodiment supports the governor from below in the sixth embodiment. The surface to be inclined is inclined. As shown in FIG. 17, the mounting plate 443, which is a surface that supports the governor from below, is attached so as to be inclined so that the retracted position side is higher than the normal position side. As a result, when the governor 15 is shifted from the normal position to the retracted position, the governor 15 not only separates from directly below the machine base 361 but also moves upward. In this embodiment (Embodiment 9 described later), a governor rope and a through hole are provided, but they are not shown in FIG. 17 (FIGS. 18 and 19).

According to the eighth embodiment, in addition to the same advantages as those of the sixth embodiment, the speed control that is preferable from the viewpoint of maintenance is achieved only by a single step of lateral movement of the speed governor 15. Two results are obtained: the removal of the machine from just below the machine base and the rise of the governor position.

Embodiment 9 FIG.
The present invention may be configured such that the surface that supports the governor from below is inclined as a whole in addition to the inclination between the normal position and the retracted position. The ninth embodiment is an example thereof, and the vertical movement mechanism of the mounting plate 443 of the seventh embodiment is added to the configuration of the eighth embodiment. According to the ninth embodiment, the same advantages as in the eighth embodiment can be obtained, and in particular, the speed governor can be set higher.

Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

For example, in the above-described embodiment, the lower part of the governor is lower than the upper surface of the machine room floor in the lowered position, and the lower part of the governor is higher than the upper surface of the machine room floor in the raised position. Is also possible.

Further, in the above-described embodiment, the ascending position can be implemented such that the upper end of the governor is lower than the upper surface of the machine room floor. In Embodiments 6 to 9 in which the position of the governor can be changed in the lateral direction, the height of the upper end position of the governor relative to the upper surface of the machine room floor can be modified as appropriate.

As Embodiment 2, the governor support mode in Embodiment 1 is modified to the suspension mode of FIG. 4, and in Embodiment 3, the governor support mode is modified to the suspension mode. It is also possible to implement. Similarly, the sixth to ninth embodiments can be implemented by modifying the speed governor so as to be supported by the support structure provided on the machine room floor as in the third embodiment. Further, the sixth to ninth embodiments can be implemented by providing rail means between the speed governor and the mounting plate, for example, so that lateral movement and position selection can be performed continuously.

Regarding the fourth and fifth embodiments, in the above description, a plurality of rope through passages for the governor rope are formed and the jack bolts are inserted through the corresponding rope through passages, but the embodiment is limited to this. Instead, it is sufficient that at least one jack bolt is inserted into the rope penetration path. Therefore, a plurality of jack bolts may be inserted together in a large rope penetration path that spreads widely, or a part of the plurality of jack bolts may be inserted into holes other than the rope penetration path. .

The above embodiment is implemented by using only one jack bolt itself by providing supplementary means for helping to maintain the attitude of the governor and supplementary means for helping to maintain the height of the governor. You can also.

1 elevator, 3 hoistway, 5 machine room, 13 hoisting machine, 15 speed governor, 17 machine room floor, 33 machine room floor top surface, 35 governor accommodating space, 37 opening, 39, 139, 339 cover, 135a Storage space bottom, 143, 243, 343, 443 mounting plate, 145 support structure, 147, 247 jack bolt, 151 rope through path, 361 machine base, 365 through long hole (rope installation path).

Claims

An elevator including a hoistway and a machine room located above the hoistway, wherein at least a hoisting machine and a speed governor are disposed in the machine room,
On the machine room floor that constitutes the bottom surface of the machine room, a governor accommodating space that opens to the machine room floor upper surface is formed,
The speed governor is an elevator disposed in the speed governor accommodating space such that the bottom of the speed governor is located at a position lower than the upper surface of the machine room floor.
A cover that covers the opening of the governor housing space generated on the upper surface of the machine room floor in a state where the governor is housed in the governor housing space;
The elevator according to claim 1, wherein the cover is detachable from the machine room floor.
The governor housing space has a housing space bottom composed of the machine room floor,
The elevator according to claim 1 or 2, wherein the governor is supported by a bottom surface of the housing space.
The governor accommodating space is a through space without a bottom surface,
The elevator according to claim 1 or 2, wherein the governor is suspended and supported by the machine room floor.
The governor is provided so as to be movable up and down between an ascending position and a descending position,
The elevator according to claim 1 or 2, wherein at least in the lowered position, the speed governor has a bottom portion of the speed governor that is lower than an upper surface of the machine room floor.
The speed governor is provided so as to be movable up and down between a floor flattening position and a speed governor maintenance position,
The floor flattening position is the lowered position, and the upper end of the governor in the governor accommodating space is a position that is lower than the upper surface of the machine room floor,
The elevator according to claim 5, wherein the governor maintenance position is the raised position, and an upper end of the governor in the governor accommodating space is higher than an upper surface of the machine room floor.
The governor housing space has a housing space bottom surface,
The speed governor is supported on a mounting plate in the speed governor accommodating space,
A supporting structure is interposed between the lower surface of the mounting plate and the bottom surface of the housing space,
The elevator according to claim 6, wherein the governor is moved up and down by changing an extension amount of the support structure extending upward from the bottom surface of the housing space.
On the bottom surface of the housing space, at least one rope through passage is formed through which a governor rope that is wound around the governor and extends into the hoistway is inserted.
The elevator according to claim 7, wherein the support structure includes at least one jack bolt, and the jack bolt is partially accommodated in the rope penetration path.
The governor accommodating space is a through space without a bottom surface,
At least one jack bolt is suspended toward the hoistway in the periphery of the governor housing space on the lower surface of the machine room floor,
A mounting plate is attached to the jack bolt so as to be movable up and down,
The speed governor is supported on the mounting plate described above,
The elevator according to claim 6, wherein the speed governor is moved up and down by changing the position of the mounting plate relative to the jack bolt.
A machine base is further arranged in the machine room,
The hoisting machine is placed on the machine base,
The elevator according to any one of claims 1 to 9, wherein the speed governor is below the machine base, and the speed governor and a part of the machine base are arranged in a vertical direction.
A machine base is further arranged in the machine room,
The hoisting machine is placed on the machine base,
The speed governor is below the machine base, and the speed governor and a part of the machine base are lined up and down.
The speed governor can be repositioned between the normal position and the retracted position arranged in a lateral direction,
The normal position is a position where the governor overlaps with a part of the machine base in plan view,
The elevator according to any one of claims 1 to 9, wherein the retreat position is a position where the speed governor is displaced from the machine base in plan view.
In the portion that supports the speed governor from below, a rope disposition path is provided in which a speed governor rope wound around the speed governor extends into the hoistway,
The elevator according to claim 11, wherein the rope arrangement path is formed so as to expand in a direction allowing movement of the governor rope in accordance with a change in lateral position of the governor.
The surface that supports the governor from below is inclined between the normal position and the retracted position,
The elevator according to claim 11 or 12, wherein the lateral position change of the governor between the normal position and the retracted position is accompanied by a change in the height of the governor.