EP1380530A1 - Mechanism for fixing hoist and elevator - Google Patents
Mechanism for fixing hoist and elevator Download PDFInfo
- Publication number
- EP1380530A1 EP1380530A1 EP01917629A EP01917629A EP1380530A1 EP 1380530 A1 EP1380530 A1 EP 1380530A1 EP 01917629 A EP01917629 A EP 01917629A EP 01917629 A EP01917629 A EP 01917629A EP 1380530 A1 EP1380530 A1 EP 1380530A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mount member
- guide rail
- hoisting machine
- mount
- counterweight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0035—Arrangement of driving gear, e.g. location or support
- B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
Definitions
- the present invention relates to an elevator system in which a hoisting machine is to be installed within a hoistway, as well as to a mounting mechanism for mounting onto guide rails the hoisting machine to be installed in the hoistway.
- Fig. 10 is a view showing a conventional elevator system described in Japanese Patent Application Laid-Open No. 208152/1996.
- reference numeral 1 designates a hoistway
- 2 designates a car which is hoisted and lowered within the hoistway
- 3 designates car guide rails provided on either side of the car 2 for guiding ascending and descending actions of the car 2
- 4 designates a counterweight which moves up and down in the direction opposite the moving direction of the car 2
- 5 designates counterweight guide rails for guiding ascending and descending actions of the counterweight.
- Reference numeral 6 designates a hoisting machine which acts as a power source for causing the car 2 and the counterweight to move up and down.
- the hoisting machine 6 has a traction sheave 61 around which a main cable to be described later is to be wound; and a drive section 62 including a motor for rotating the traction sheave.
- Reference numeral 8 designates a counterweight pulley fastened to an upper portion of the counterweight 4; and 9 designates an undercar pulley provided on a lower portion of the car 2. Two undercar pulleys 9 are provided on the lower portion of the car 2.
- Reference numeral 10 designates a main cable passed around the counterweight pulley 8, the traction sheave 61, and the undercar pulleys 9.
- the respective ends of the main cable are anchored to the ceiling of the hoistway or a beam provided in an elevated position within the hoistway.
- Reference numeral 20 designates a beam affixed to the tops of the counterweight guide rails 5, and the hoisting machine 6 is mounted on the beam 20.
- Reference numeral 21 designates a reinforcement element for clamping the hoisting machine 6 on a wall of the hoistway 1. This reinforcement element 21 absorbs horizontal force but absorbs substantially no vertical supporting force.
- the conventional elevator system is constructed in the manner mentioned previously.
- the car 2 and the counterweight 4 move up and down by way of the main cable 10 as a result of rotation of the traction sheave 61 of the hoisting machine 6.
- the hoisting machine 6 is mounted on the beam 20 in the manner as shown in Fig. 11.
- the traction sheave 61 is offset from a plane in which two guide rails 5 are provided, when viewed from the side. Therefore, because of the force F exerted on the traction sheave 61 by the main cable 10, a very large moment acts on the hoisting machine 6. The moment imposes bending force on the counterweight guide rails 5. Therefore, there arises a problem of a necessity for increasing the size of rails for enhancing the strength thereof.
- the present invention has been conceived to solve such a problem, and a first object of the invention is to reduce bending force which is caused to arise in guide rails by force acting on a traction sheave and to reduce the size of the guide rails.
- a second object of the invention is to prevent horizontal deflection of a hoisting machine without involvement of fastening of the hoisting machine to a wall of a hoistway 1.
- a mechanism for mounting a hoisting machine comprises a first guide rail and a second guide rail for guiding vertical movement of a car or that of a counterweight; a hoisting machine having a traction sheave around which a main cable is to be wound and a drive section for rotationally driving the traction sheave; a mount member on which the hoisting machine is secured; a first bracing member which is provided on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the first guide rail, and prevents horizontal runout of the mount member; a second bracing member which is provided on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the second guide rail, and prevents horizontal runout of the mount member; and support members which are provided on the first and second guide rails and support vertical load of the mount member and that of the hoisting machine.
- the mechanism for mounting a hoisting machine further comprises a third bracing member which is provided on a part of the mount member at a lower side of the first bracing member, retains the mount member in such a manner that the mount member is slidable in the longitudinal direction of the first guide rail, and prevents horizontal runout of the mount member; and a fourth bracing member which is provided on a part of the mount member at a lower side of the second bracing member, retains the mount member in such a manner that the mount member is slidable in the longitudinal direction of the second guide rail, and prevents horizontal runout of the mount member.
- the mechanism for mounting a hoisting machine further comprises resilient members provided between the mount member and the support member.
- the mechanism for mounting a hoisting machine comprises a beam which is affixed to the support member and to which one end of the main cable is to be affixed.
- the mechanism for mounting a hoisting machine further comprises a first stopper which is provided so as to project from the mount member toward the first guide rail and prevents horizontal runout of the mount member upon coming into contact with the first guide rail; and a second stopper which is provided so as to project from the mount member toward the second guide rail and prevents horizontal runout of the mount member upon coming into contact with the second guide rail.
- the mechanism for mounting a hoisting machine further comprises a joint member which is provided on an upper end of the first guide rail and that of a second guide rail and links together the first and second rails at a position higher than the mount member.
- An elevator system comprises a car which moves up and down within a hoistway; a plurality of car guide rails for guiding vertical movement of the car; a counterweight which moves up and down within the hoistway; a plurality of counterweight guide rails for guiding vertical'movement of the counterweight; a main cable for suspending the car and the counterweight; a hoisting machine having a traction sheave around which the main cable is to be passed and a drive section for rotationally driving the traction sheave and causing the car and the counterweight to ascend and descend by way of the main cable by means of rotation of the traction sheave; a mount member on which the hoisting machine is mounted; a first bracing member which is mounted on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the first guide rail selected from the plurality of car guide rails and the plurality of counterweight guide rails and which prevents horizontal runout of the mount member; a second
- Fig. 1 is an overall layout view of an elevator system according to an embodiment.
- reference numeral 1 designates a hoistway
- 2 designates a car which moves up and down within the hoistway 1
- 3a, 3b designate car guide rails provided on respective sides of the car 2 for guiding vertical movement of the car 2.
- Reference numeral 4 designates a counterweight which moves up and down within the hoistway in the direction opposite the moving direction of the car 2.
- Reference numerals 5a, 5b designate counterweight guide rails provided on respective sides of the counterweight 4 for guiding vertical movement of the counterweight 4.
- Reference numeral 6 designates a hoisting machine, which serves as a power source for causing the car 2, and the counterweight 4 to ascend and descend.
- the hoisting machine 6 has a traction sheave 61 around which a main cable to be described later is to be wound; and a drive section 62 including a motor for rotating the traction sheave 61.
- Reference numeral 7 designates a mounting mechanism for mounting the hoisting machine 6 between the guide rails 5a, 5b.
- the present embodiment is characterized by the mounting mechanism 7, and the mounting mechanism will be described in detail later.
- Reference numeral 8 designates a counterweight pulley attached to an upper portion of the counterweight 4.
- Reference numeral 9 designates an undercar pulley attached to a lower portion of the car 2 .
- Two undercar pul leys 9 are provided on the lower portion of the car 2.
- Reference numeral 10 designates a main cable passed around the counterweight pulley 8, the traction sheave 61, and the undercar pulleys 9.
- One end of the main cable 10 is anchored to a main cable attachment section 11 provided at the upper end of the guide rail 3a.
- the other endof themain cable 10 is anchored to a main cable attachment section 12 interposed between the guide rails 5a, 5b.
- the main cable 10 can be routed from the traction sheave 61 to the counterweight 8 and anchored to the main cable attachment section 12.
- the car 2 and the counterweight 4 are caused to ascend or descend by way of the main cable 10 as a result of rotation of the traction sheave 61 of the hoisting machine 6.
- Fig. 2 is an enlarged view showing the structure of the mounting mechanism 7
- Fig. 3 is a side view of the structure shown in Fig. 2. The structure of the mounting mechanism will now be described by reference to these drawings.
- the mounting mechanism 7 comprises support tables 71a, 71b; a cable anchor beam 72; resilient members 73a, 73b; and a mount frame 74 serving as a mount member.
- the support tables 71a, 71b are attached to the guide rails 5a, 5b, respectively.
- One end of the cable anchor beam 72 is fixed to the support table 71a, and the other end of the same is fixed to the support table 71b.
- the main cable mount section 12 is provided on the cable anchor beam 72.
- the resilient members 73a, 73b are attached onto the cable anchor beam 72 and formed from elastic material such as rubber.
- the mount frame 74 of the hoisting machine is set on the resilient members 73a, 73b.
- the hoisting machine 6 is mounted to the mount frame 74, and the mount frame 74 can be moved minutely in the longitudinal direction (i.e., the vertical direction) of the guide rails 5a, 5b.
- the hoisting machine 6 is mounted on the mount frame 74.
- the traction sheave 61 (designated by dotted lines) is placed at a position offset from the plane in which the guide rails 5a, 5b are present.
- the mount frame 74 is constituted of lateral members 742, 743 and longitudinal members 741a, 741b.
- An anchor block 744a is attached to the longitudinal member 741a
- an anchor block 744b is attached to the longitudinal member 741b.
- the hoisting machine 6 is secured to the lateral member 742 and the anchor blocks 744a, 744b.
- a lower stopper 745a is attached to the lower end of the longitudinal member 741a, and a lower stopper 745b is attached to the lower end of the longitudinal member 741b. As shown in Fig. 2, a lower end face of the longitudinal member 741a remains in contact with the resilient member 73a, and a lower end face of the longitudinal member 741b remains in contact with the resilient member 73b.
- upper bracing members 746a, 746b are attached to respective sides of the lateral member 742. Further, a lower bracing member 747a is attached to the longitudinal member 741a, and a lower bracing member 747b is attached to the longitudinal member 741b.
- Figs. 5 and 6 are enlarged views of the upper bracing member 746a and the lower bracing member 747a.
- the upper bracing member 746a and the lower bracing member 747a catch the guide rail 5a by way of the resilient members.
- the upper bracing member 746b and the lower bracing member 747b are identical in construction with the upper bracing member 746a and the lower bracing member 747a and catch the guide rail 5b by way of the resilient members.
- minute horizontal deflections of the hoisting machine 6 can be prevented.
- the mount frame 74 is guided by. the guide rails 5a, 5b and can move minutely in the downward direction. Hence, the vertical force exerted on the hoisting machine 6 is supported by the support tables 71a, 71b.
- An upper stopper 748a is provided on one side of the lateral member 742 so as to project toward the guide rail 5a
- an upper stopper 748b is provided on the other side of the lateral member 742 so as to project toward the guide rail 5b (here, the portions of the upper bracing members 746a, 746b attached to the lateral member 742 may work as the upper stoppers).
- the upper stoppers 748a, 748b prevent horizontal deflections which cannot be inhibited by the bracing members, in conjunction with the lower stoppers 745a, 745b.
- the hoisting machine 6 is provided between the guide rails 5a, 5b.
- the space defined between the guide rails 5a, 5b has hitherto been taken as a dead space. Utilization of this space leads to effective utilization of a space in the hoistway.
- the cable anchor beam 72 is secured on the support tables 71a, 71b. Hence, the positional relationship between the hoisting machine 6 and the cable anchor beam 72 does not require adjustment.
- a beam is provided on the guide rails 5a, 5b, and the hoisting machine is situated on the beam, thus requiring a heightwise dimension.
- the present embodiment obviates a space corresponding to the dimension.
- Fig. 7 is an enlarged view of the mounting mechanism according to a second embodiment.
- This embodiment differs from the first embodiment in that a guide rail joint section 13 is provided at the upper ends of the guide rails 5a, 5b.
- the embodiment is identical with the previous embodiment, and hence repeated explanations of the remaining elements and their configuration are omitted.
- the guide rail joint section 13 is constructed as follows:
- the back of the guide rail 5a is brought into contact with and fastened to one side of the L-shaped member 131a by a rail clip 132a.
- the back of the guide rail 5b is brought into contact with and fastened to one side of the L-shaped member 131b by a rail clip 132b.
- the other side of the L-shaped member 131a and that of the L-shaped member 131b are joined together by means of a mounting bracket 133.
- the guide rail joint section 13 has the construction as set forth.
- the construction shown in Fig. 9 may be adopted.
- one end of a joint member 134a and one end of a joint member 134b are fixed to a projecting section which is a sliding surface of the guide rail 5a.
- the other end of the joint member 134a and that of the joint member 134b are fixed to a projecting section which is a sliding surface of the guide rail 5b.
- a through hole is formed in the upper end portion of the projecting section of the guide rail 5a as well as in a corresponding portion of the guide rail 5b. Bolts are inserted into the through holes, thereby fastening together the joint members 134a, 134b.
- the cable anchor beam 72 is provided on the support tables 71a, 71b.
- the resilient members 73a, 73b are further provided on the cable anchor beam 72 .
- the cable anchor beam 72 is not interposed between the support tables 71a, 71b and the resilient members 73a, 73b; in this case, the ends of the main cable 10 must be affixed to the ceiling of the hoistway or other locations.
- the hoisting machine 6 may be fixed on the mount frame 74 by way of the resilient members.
- the support tables 71a, 71b are attached to the guide rails 5a, 5b.
- a support table may be constructed by use of a beam-like member which is connected at one end thereof to the guide rail 5a and at the other end thereof to the guide rail 5b.
- the structure for mounting a hoisting machine according to the present invention yields the following advantages.
- a mechanism for mounting a hoisting machine comprises a first guide rail and a second guide rail for guiding vertical movement of a car or that of a counterweight; a hoisting machine having a traction sheave around which a main cable is to be wound and a drive section for rotationally driving the traction sheave; a mount member on which the hoisting machine is secured; a first bracing member which is provided on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the first guide rail, and prevents horizontal runout of the mount member; a second bracing member which is provided on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the second guide rail, and prevents horizontal runout of the mount member; and support members which are provided on the first and second guide rails and support vertical load of the mount member and that of the hoisting machine.
- the mechanism for mounting a hoisting machine further comprises a third bracing member which is provided on a part of the mount member at a lower side of the first bracing member, retains the mount member in such a manner that the mount member is slidable in the longitudinal direction of the first guide rail, and prevents horizontal runout of the mount member; and a fourth bracing member which is provided on a part of the mount member at a lower side of the second bracing member, retains the mount member in such a manner that the mount member is slidable in the longitudinal direction of the second guide rail, and prevents horizontal runout of the mount member.
- the mechanism for mounting a hoisting machine further comprises resilient members provided between the mount member and the support member. By provision of the resilient members, vibration of the hoisting machine is not transmitted to the guide rails.
- the mechanism for mounting a hoisting machine comprises a beam, which is affixed to the support member and to which one end of the main cable is to be affixed. Hence, positional adjustment of the hoisting machine and that of the beam are obviated.
- the mechanism for mounting a hoisting machine further comprises a first stopper which is provided so as to project from the mount member toward the first guide rail and prevents horizontal runout of the mount member upon coming into contact with the first guide rail; and a second stopper which is provided so as to project from the mount member toward the second guide rail and prevents horizontal runout of the mount member upon coming into contact with the second guide rail.
- the mechanism for mounting a hoisting machine further comprises a joint member which is provided on an upper end of the first guide rail and that of a second guide rail and links together the first and second rails at a position higher than the mount member.
- An elevator system comprises a car which moves up and down within a hoistway; a plurality of car guide rails for guiding vertical movement of the car; a counterweight which moves up and down within the hoistway; a plurality of counterweight guide rails for guiding vertical movement of the counterweight; a main cable for suspending the car and the counterweight; a hoisting machine having a traction sheave around which the main cable is to be passed and a drive section for rotationally driving the traction sheave and causing the car and the counterweight to ascend and descend by way of the main cable by means of rotation of the traction sheave; a mount member on which the hoisting machine is mounted; a first bracing member which is mounted on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the first guide rail selected from the plurality of car guide rails and the plurality of counterweight guide rails and which prevents horizontal runout of the mount member; a second bracing
- the invention is applied to an elevator system in which a hoisting machine is mounted on guide rails.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
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- Structural Engineering (AREA)
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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
- The present invention relates to an elevator system in which a hoisting machine is to be installed within a hoistway, as well as to a mounting mechanism for mounting onto guide rails the hoisting machine to be installed in the hoistway.
- Fig. 10 is a view showing a conventional elevator system described in Japanese Patent Application Laid-Open No. 208152/1996.
- As shown in the drawing,
reference numeral 1 designates a hoistway; 2 designates a car which is hoisted and lowered within the hoistway; 3 designates car guide rails provided on either side of thecar 2 for guiding ascending and descending actions of thecar 2; 4 designates a counterweight which moves up and down in the direction opposite the moving direction of thecar 2; and 5 designates counterweight guide rails for guiding ascending and descending actions of the counterweight. -
Reference numeral 6 designates a hoisting machine which acts as a power source for causing thecar 2 and the counterweight to move up and down. The hoistingmachine 6 has atraction sheave 61 around which a main cable to be described later is to be wound; and adrive section 62 including a motor for rotating the traction sheave. -
Reference numeral 8 designates a counterweight pulley fastened to an upper portion of the counterweight 4; and 9 designates an undercar pulley provided on a lower portion of thecar 2. Two undercar pulleys 9 are provided on the lower portion of thecar 2. -
Reference numeral 10 designates a main cable passed around thecounterweight pulley 8, thetraction sheave 61, and the undercar pulleys 9. The respective ends of the main cable are anchored to the ceiling of the hoistway or a beam provided in an elevated position within the hoistway. -
Reference numeral 20 designates a beam affixed to the tops of thecounterweight guide rails 5, and the hoistingmachine 6 is mounted on thebeam 20. -
Reference numeral 21 designates a reinforcement element for clamping the hoistingmachine 6 on a wall of thehoistway 1. Thisreinforcement element 21 absorbs horizontal force but absorbs substantially no vertical supporting force. - The conventional elevator system is constructed in the manner mentioned previously. The
car 2 and the counterweight 4 move up and down by way of themain cable 10 as a result of rotation of thetraction sheave 61 of the hoistingmachine 6. - In such a conventional elevator system, the hoisting
machine 6 is mounted on thebeam 20 in the manner as shown in Fig. 11. At this time, in order to prevent themain cable 10 from coming into contact with theguide rails 5, thetraction sheave 61 is offset from a plane in which twoguide rails 5 are provided, when viewed from the side. Therefore, because of the force F exerted on thetraction sheave 61 by themain cable 10, a very large moment acts on the hoistingmachine 6. The moment imposes bending force on thecounterweight guide rails 5. Therefore, there arises a problem of a necessity for increasing the size of rails for enhancing the strength thereof. - Moreover, in order to prevent horizontal deflection of the hoisting
machine 6, which would otherwise be caused by the force F, there arises a necessity for a reinforcement element for fastening the hoistingmachine 6 to the wall of thehoistway 1. - The present invention has been conceived to solve such a problem, and a first object of the invention is to reduce bending force which is caused to arise in guide rails by force acting on a traction sheave and to reduce the size of the guide rails. A second object of the invention is to prevent horizontal deflection of a hoisting machine without involvement of fastening of the hoisting machine to a wall of a
hoistway 1. - A mechanism for mounting a hoisting machine according to the present invention comprises a first guide rail and a second guide rail for guiding vertical movement of a car or that of a counterweight; a hoisting machine having a traction sheave around which a main cable is to be wound and a drive section for rotationally driving the traction sheave; a mount member on which the hoisting machine is secured; a first bracing member which is provided on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the first guide rail, and prevents horizontal runout of the mount member; a second bracing member which is provided on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the second guide rail, and prevents horizontal runout of the mount member; and support members which are provided on the first and second guide rails and support vertical load of the mount member and that of the hoisting machine.
- The mechanism for mounting a hoisting machine further comprises a third bracing member which is provided on a part of the mount member at a lower side of the first bracing member, retains the mount member in such a manner that the mount member is slidable in the longitudinal direction of the first guide rail, and prevents horizontal runout of the mount member; and a fourth bracing member which is provided on a part of the mount member at a lower side of the second bracing member, retains the mount member in such a manner that the mount member is slidable in the longitudinal direction of the second guide rail, and prevents horizontal runout of the mount member.
- The mechanism for mounting a hoisting machine further comprises resilient members provided between the mount member and the support member.
- Further, the mechanism for mounting a hoisting machine comprises a beam which is affixed to the support member and to which one end of the main cable is to be affixed.
- The mechanism for mounting a hoisting machine further comprises a first stopper which is provided so as to project from the mount member toward the first guide rail and prevents horizontal runout of the mount member upon coming into contact with the first guide rail; and a second stopper which is provided so as to project from the mount member toward the second guide rail and prevents horizontal runout of the mount member upon coming into contact with the second guide rail.
- The mechanism for mounting a hoisting machine further comprises a joint member which is provided on an upper end of the first guide rail and that of a second guide rail and links together the first and second rails at a position higher than the mount member.
- An elevator system according to the present invention comprises a car which moves up and down within a hoistway; a plurality of car guide rails for guiding vertical movement of the car; a counterweight which moves up and down within the hoistway; a plurality of counterweight guide rails for guiding vertical'movement of the counterweight; a main cable for suspending the car and the counterweight; a hoisting machine having a traction sheave around which the main cable is to be passed and a drive section for rotationally driving the traction sheave and causing the car and the counterweight to ascend and descend by way of the main cable by means of rotation of the traction sheave; a mount member on which the hoisting machine is mounted; a first bracing member which is mounted on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the first guide rail selected from the plurality of car guide rails and the plurality of counterweight guide rails and which prevents horizontal runout of the mount member; a second bracing member which is mounted on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of a second guide rail differing from the first guide rail selected from the plurality of car guide rails and the plurality of counterweight guide rails and which prevents horizontal runout of the mount member; and a support member which is mounted on the first and second guide rails and supports a vertical load of the mount member and that of the hoisting machine.
-
- Fig. 1 is an overall layout view of an elevator system according to a first embodiment;
- Fig. 2 is an enlarged view showing the structure of
surroundings of a
mounting mechanism 7; - Fig. 3 is a side view of the
mounting mechanism 7 when viewed from direction A shown in Fig. 2; - Fig. 4 is a view showing the construction of a
mount frame 74, wherein (a) is a front view of themount frame 74; (b) is a side view of themount frame 74; and (c) is a bottom view of themount frame 74; - Fig. 5 is an enlarged view showing the structure of an
upper bracing member 746a, wherein (a) is a front view of theupper bracing member 746a, and (b) is a top view of theupper bracing member 746a; - Fig. 6 is an enlarged view showing the structure of a
lower bracing member 747a, or a cross-sectional view of the same when viewed from direction B shown in Fig. 2; - Fig. 7 is an enlarged view showing the structure of
surroundings of
another mounting mechanism 7; - Fig. 8 is a top view of a guide
rail joint section 13; - Fig. 9 is a view showing another structure of the guide
rail joint section 13; - Fig. 10 is an overall structural drawing of a conventional elevator system; and
- Fig. 11 is a view showing a force F acting on a hoisting
machine 6. -
- In relation to the invention, embodiments will be described hereinbelow.
- Fig. 1 is an overall layout view of an elevator system according to an embodiment.
- As shown in Fig. 1,
reference numeral 1 designates a hoistway; 2 designates a car which moves up and down within thehoistway 1; and 3a, 3b designate car guide rails provided on respective sides of thecar 2 for guiding vertical movement of thecar 2. - Reference numeral 4 designates a counterweight which moves up and down within the hoistway in the direction opposite the moving direction of the
car 2.Reference numerals -
Reference numeral 6 designates a hoisting machine, which serves as a power source for causing thecar 2, and the counterweight 4 to ascend and descend. The hoistingmachine 6 has atraction sheave 61 around which a main cable to be described later is to be wound; and adrive section 62 including a motor for rotating thetraction sheave 61. -
Reference numeral 7 designates a mounting mechanism for mounting the hoistingmachine 6 between theguide rails mounting mechanism 7, and the mounting mechanism will be described in detail later. -
Reference numeral 8 designates a counterweight pulley attached to an upper portion of the counterweight 4. - Reference numeral 9 designates an undercar pulley attached to a lower portion of the
car 2 . Two undercar pul leys 9 are provided on the lower portion of thecar 2. -
Reference numeral 10 designates a main cable passed around thecounterweight pulley 8, thetraction sheave 61, and the undercar pulleys 9. One end of themain cable 10 is anchored to a main cable attachment section 11 provided at the upper end of the guide rail 3a. The otherendof themain cable 10 is anchored to a maincable attachment section 12 interposed between theguide rails - Since the
counterweight pulley 8 is disposed at a position offset from a plane in which theguide rails main cable 10 can be routed from thetraction sheave 61 to thecounterweight 8 and anchored to the maincable attachment section 12. - In the elevator system, the
car 2 and the counterweight 4 are caused to ascend or descend by way of themain cable 10 as a result of rotation of thetraction sheave 61 of the hoistingmachine 6. - Next, the structure of the
mounting mechanism 7 will be described in detail. - Fig. 2 is an enlarged view showing the structure of the
mounting mechanism 7, and Fig. 3 is a side view of the structure shown in Fig. 2. The structure of the mounting mechanism will now be described by reference to these drawings. - The mounting
mechanism 7 comprises support tables 71a, 71b; acable anchor beam 72;resilient members mount frame 74 serving as a mount member. - The support tables 71a, 71b are attached to the
guide rails cable anchor beam 72 is fixed to the support table 71a, and the other end of the same is fixed to the support table 71b. The maincable mount section 12 is provided on thecable anchor beam 72. - The
resilient members cable anchor beam 72 and formed from elastic material such as rubber. Themount frame 74 of the hoisting machine is set on theresilient members machine 6 is mounted to themount frame 74, and themount frame 74 can be moved minutely in the longitudinal direction (i.e., the vertical direction) of theguide rails - As shown in Fig. 3, the hoisting
machine 6 is mounted on themount frame 74. In order to prevent themain cable 10 from coming into contact with theguide rails guide rails - As shown in Fig. 4, the
mount frame 74 is constituted oflateral members longitudinal members anchor block 744a is attached to thelongitudinal member 741a, and ananchor block 744b is attached to thelongitudinal member 741b. The hoistingmachine 6 is secured to thelateral member 742 and the anchor blocks 744a, 744b. - A
lower stopper 745a is attached to the lower end of thelongitudinal member 741a, and alower stopper 745b is attached to the lower end of thelongitudinal member 741b. As shown in Fig. 2, a lower end face of thelongitudinal member 741a remains in contact with theresilient member 73a, and a lower end face of thelongitudinal member 741b remains in contact with theresilient member 73b. - Further, as shown in Fig. 2, upper bracing
members lateral member 742. Further, a lower bracingmember 747a is attached to thelongitudinal member 741a, and a lower bracingmember 747b is attached to thelongitudinal member 741b. - Figs. 5 and 6 are enlarged views of the upper bracing
member 746a and the lower bracingmember 747a. - As shown in Figs. 5 and 6, the upper bracing
member 746a and the lower bracingmember 747a catch theguide rail 5a by way of the resilient members. The upper bracingmember 746b and the lower bracingmember 747b are identical in construction with the upper bracingmember 746a and the lower bracingmember 747a and catch theguide rail 5b by way of the resilient members. By means of such a construction, minute horizontal deflections of the hoistingmachine 6 can be prevented. Moreover, by means of the foregoing construction, themount frame 74 is guided by. theguide rails machine 6 is supported by the support tables 71a, 71b. - An
upper stopper 748a is provided on one side of thelateral member 742 so as to project toward theguide rail 5a, and anupper stopper 748b is provided on the other side of thelateral member 742 so as to project toward theguide rail 5b (here, the portions of the upper bracingmembers lateral member 742 may work as the upper stoppers). Theupper stoppers lower stoppers machine 6, horizontal deflections of themount frame 74 can be prevented by contact existing between theupper stopper 748a, thelower stopper 745a, and theguide rail 5a and contact existing between theupper stopper 748b, thelower stopper 745b, and theguide rail 5b. - By means of such a construction, even when the
main cable 10 has exerted downward force F on the hoisting machine, the moment due to the force F can be supported by theupper stoppers lower stoppers mount frame 74 and that of the hoistingmachine 6 acts on the support tables 71a, 71b, and the loads are supported. - As a result, moment due to the reaction force acting on the
guide rails - Since the
resilient members mount frame 74 and thecable anchor beam 72, transmission of vibrations of the hoisting machine to theguide rails mount frame 74 for reasons of deflections of theresilient members members members - According to the mounting structure of the hoisting machine, the hoisting
machine 6 is provided between theguide rails guide rails - The
cable anchor beam 72 is secured on the support tables 71a, 71b. Hence, the positional relationship between the hoistingmachine 6 and thecable anchor beam 72 does not require adjustment. - In the case of the conventional example, a beam is provided on the
guide rails - Fig. 7 is an enlarged view of the mounting mechanism according to a second embodiment.
- This embodiment differs from the first embodiment in that a guide rail
joint section 13 is provided at the upper ends of theguide rails - The guide rail
joint section 13 is constructed as follows: - The back of the
guide rail 5a is brought into contact with and fastened to one side of the L-shapedmember 131a by arail clip 132a. The back of theguide rail 5b is brought into contact with and fastened to one side of the L-shapedmember 131b by arail clip 132b. The other side of the L-shapedmember 131a and that of the L-shapedmember 131b are joined together by means of a mountingbracket 133. - By means of the guide rail
joint section 13, separation of theguide rail 5a from theguide rail 5b can be prevented. - In the embodiment, the guide rail
joint section 13 has the construction as set forth. However, alternatively, the construction shown in Fig. 9 may be adopted. As shown in Fig. 9, one end of ajoint member 134a and one end of ajoint member 134b are fixed to a projecting section which is a sliding surface of theguide rail 5a. The other end of thejoint member 134a and that of thejoint member 134b are fixed to a projecting section which is a sliding surface of theguide rail 5b. To this end, a through hole is formed in the upper end portion of the projecting section of theguide rail 5a as well as in a corresponding portion of theguide rail 5b. Bolts are inserted into the through holes, thereby fastening together thejoint members - In the first and second embodiments as above, the
cable anchor beam 72 is provided on the support tables 71a, 71b. Theresilient members cable anchor beam 72 . However, it may be the case that thecable anchor beam 72 is not interposed between the support tables 71a, 71b and theresilient members main cable 10 must be affixed to the ceiling of the hoistway or other locations. - The hoisting
machine 6 may be fixed on themount frame 74 by way of the resilient members. - In the embodiment, the support tables 71a, 71b are attached to the
guide rails guide rail 5a and at the other end thereof to theguide rail 5b. - Although the embodiment has described a case where a hoisting machine is mounted on the
counterweight guide rails car guide rails 3a, 3b. - The structure for mounting a hoisting machine according to the present invention yields the following advantages.
- A mechanism for mounting a hoisting machine according to the invention comprises a first guide rail and a second guide rail for guiding vertical movement of a car or that of a counterweight; a hoisting machine having a traction sheave around which a main cable is to be wound and a drive section for rotationally driving the traction sheave; a mount member on which the hoisting machine is secured; a first bracing member which is provided on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the first guide rail, and prevents horizontal runout of the mount member; a second bracing member which is provided on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the second guide rail, and prevents horizontal runout of the mount member; and support members which are provided on the first and second guide rails and support vertical load of the mount member and that of the hoisting machine. As a result, a bending force, which arises in the guide rails from force acting on the traction sheave, can be diminished, thereby enabling a reduction in the size of the guide rails.
- The mechanism for mounting a hoisting machine further comprises a third bracing member which is provided on a part of the mount member at a lower side of the first bracing member, retains the mount member in such a manner that the mount member is slidable in the longitudinal direction of the first guide rail, and prevents horizontal runout of the mount member; and a fourth bracing member which is provided on a part of the mount member at a lower side of the second bracing member, retains the mount member in such a manner that the mount member is slidable in the longitudinal direction of the second guide rail, and prevents horizontal runout of the mount member. As a result, a bending force, which arises in the guide rails from force acting on the hoisting machine, can be diminished further, thereby enabling a reduction in the size of the guide rails.
- The mechanism for mounting a hoisting machine further comprises resilient members provided between the mount member and the support member. By provision of the resilient members, vibration of the hoisting machine is not transmitted to the guide rails.
- Further, the mechanism for mounting a hoisting machine comprises a beam, which is affixed to the support member and to which one end of the main cable is to be affixed. Hence, positional adjustment of the hoisting machine and that of the beam are obviated.
- The mechanism for mounting a hoisting machine further comprises a first stopper which is provided so as to project from the mount member toward the first guide rail and prevents horizontal runout of the mount member upon coming into contact with the first guide rail; and a second stopper which is provided so as to project from the mount member toward the second guide rail and prevents horizontal runout of the mount member upon coming into contact with the second guide rail. Even if moment, which cannot be supported by the bracing members, is produced by the force acting on the traction sheave, the hoisting machine can be supported.
- The mechanism for mounting a hoisting machine further comprises a joint member which is provided on an upper end of the first guide rail and that of a second guide rail and links together the first and second rails at a position higher than the mount member. As a result, expansion of a space between the first and second guide rails can be prevented, and stiffness of the guide rail can be improved.
- An elevator system according to the invention comprises a car which moves up and down within a hoistway; a plurality of car guide rails for guiding vertical movement of the car; a counterweight which moves up and down within the hoistway; a plurality of counterweight guide rails for guiding vertical movement of the counterweight; a main cable for suspending the car and the counterweight; a hoisting machine having a traction sheave around which the main cable is to be passed and a drive section for rotationally driving the traction sheave and causing the car and the counterweight to ascend and descend by way of the main cable by means of rotation of the traction sheave; a mount member on which the hoisting machine is mounted; a first bracing member which is mounted on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the first guide rail selected from the plurality of car guide rails and the plurality of counterweight guide rails and which prevents horizontal runout of the mount member; a second bracing member which is mounted on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of a second guide rail differing from the first guide rail selected from the plurality of car guide rails and the plurality of counterweight guide rails and which prevents horizontal runout of the mount member; and a support member which is mounted on the first and second guide rails and supports a vertical load of the mount member and that of the hoisting machine. As a result, a bending force, which is produced in the guide rails by force acting on the traction sheave, can be diminished, thereby enabling a reduction in the size of the guide rails.
- As has been described, the invention is applied to an elevator system in which a hoisting machine is mounted on guide rails.
Claims (7)
- A mechanism for mounting a hoistingmachine, comprising:a first guide rail and a second guide rail for guiding vertical movement of a car or that of a counterweight;a hoisting machine having a traction sheave around which a main cable is to be wound and a drive section for rotationally driving the traction sheave;a mount member on which the hoisting machine is secured;a first bracing member which is provided on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the first guide rail, and prevents horizontal runout of the mount member;a second bracing member which is provided on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the second guide rail, and prevents horizontal runout of the mount member; andsupport members which are provided on the first and second guide rails and support vertical load of the mount member and that of the hoisting machine.
- The mechanism for mounting a hoisting machine according to claim 1, further comprising:a third bracing member which is provided on a part of the mount member at a lower side of the first bracing member, retains the mount member in such a manner that the mount member is slidable in the longitudinal direction of the first guide rail, andprevents horizontal runout of the mount member; anda fourth bracing member which is provided on a part of the mount member opposing a lower side of the second bracing member, retains the mount member in such a manner that the mount member is slidable in the longitudinal direction of the second guide rail, and prevents horizontal runout of the mount member.
- The mechanism for mounting a hoisting machine according to claim 1, further comprising:resilient members provided between the mount member and the support member.
- The mechanism for mounting a hoisting machine according to claim 1, further comprising:a beam which is affixed to the support member and to which one end of the main cable is to be affixed.
- The mechanism for mounting a hoisting machine according to claim 1, further comprising:a first stopper which is provided so as to project from the mount member toward the first guide rail and prevents horizontal runout of the mount member upon coming into contact with the first guide rail; anda second stopper which is provided so as to project from the mount member toward the second guide rail and prevents horizontal runout of the mount member upon coming into contact with the second guide rail.
- The mechanism for mounting a hoisting machine according to claim 1, further comprising:a joint member which is provided on an upper end of the first guide rail and that of a second guide rail and links together the first and second rails at a position higher than the mount member.
- An elevator system comprising:a car which moves up and down within a hoistway;a plurality of car guide rails for guiding vertical movement of the car;a counterweight which moves up and down within the hoistway;a plurality of counterweight guide rails for guiding vertical movement of the counterweight;a main cable for suspending the car and the counterweight;a hoisting machine having a traction sheave around which the main cable is to be passed and a drive section for rotationally driving the traction sheave and causing the car and the counterweight to ascend or descend by way of the main cable by means of rotation of the traction sheave;a mount member on which the hoisting machine is mounted;a first bracing member which is mounted on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of the first guide rail selected from the plurality of car guide rails and the plurality of counterweight guide rails andwhich prevents horizontal runout of the mount member;a second bracingmember which is mounted on the mount member, retains the mount member in such a manner that the mount member is slidable in a longitudinal direction of a second guide rail differing from the first guide rail selected from the plurality of car guide rails and the plurality of counterweight guide rails and which prevents horizontal runout of the mount member; anda support member which is mounted on the first and second guide rails and supports a vertical load of the mount member and that of the hoisting machine.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2001/002666 WO2002079068A1 (en) | 2001-03-29 | 2001-03-29 | Mechanism for fixing hoist and elevator |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1380530A1 true EP1380530A1 (en) | 2004-01-14 |
EP1380530A4 EP1380530A4 (en) | 2005-06-29 |
EP1380530B1 EP1380530B1 (en) | 2006-12-06 |
Family
ID=11737182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01917629A Expired - Lifetime EP1380530B1 (en) | 2001-03-29 | 2001-03-29 | Mechanism for fixing hoist and elevator |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1380530B1 (en) |
JP (1) | JP4300799B2 (en) |
CN (1) | CN1189381C (en) |
DE (1) | DE60125066T2 (en) |
WO (1) | WO2002079068A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7178636B2 (en) | 2003-03-25 | 2007-02-20 | Mitsubishi Denki Kabushiki Kaisha | Elevator system |
EP2067734A1 (en) * | 2006-09-29 | 2009-06-10 | Mitsubishi Electric Corporation | Elevator device |
US8839911B2 (en) | 2009-04-28 | 2014-09-23 | Otis Elevator Company | Elevator machine frame with noise reducing configuration |
CN104355207A (en) * | 2014-10-22 | 2015-02-18 | 日立电梯(中国)有限公司 | Elevator system |
CN105314505A (en) * | 2015-11-06 | 2016-02-10 | 上海交通大学 | Traction rope fixing structure for elevator traction testing and elevator traction testing device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4959986B2 (en) * | 2006-02-09 | 2012-06-27 | 東芝エレベータ株式会社 | Lifting apparatus and lifting method for elevator equipment |
JP5253285B2 (en) * | 2009-04-28 | 2013-07-31 | 株式会社日立製作所 | Elevator equipment |
US10384912B2 (en) | 2014-08-13 | 2019-08-20 | Mitsubishi Electric Corporation | Machine base attachment device for elevator hoisting machine |
JP6714905B2 (en) * | 2018-01-15 | 2020-07-01 | フジテック株式会社 | elevator |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0905081A2 (en) * | 1997-09-26 | 1999-03-31 | Kabushiki Kaisha Toshiba | Positioning of drive unit in an elevator shaft |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51109563U (en) * | 1975-02-28 | 1976-09-03 | ||
JP2507636B2 (en) * | 1989-11-21 | 1996-06-12 | 三菱電機株式会社 | Mechanical platform support device for temporary elevator |
FI96198C (en) * | 1994-11-03 | 1996-05-27 | Kone Oy | Pinion Elevator |
JP4157631B2 (en) * | 1998-11-19 | 2008-10-01 | 日本エレベーター製造株式会社 | Elevator device |
JP2000169059A (en) * | 1998-12-07 | 2000-06-20 | Mitsubishi Electric Corp | Installation method of elevator |
JP3747710B2 (en) * | 1999-10-05 | 2006-02-22 | 松下電工株式会社 | Elevator drive unit fixing structure |
JP3726605B2 (en) * | 1999-12-16 | 2005-12-14 | フジテック株式会社 | Elevator drive support device |
JP4391649B2 (en) * | 1999-12-20 | 2009-12-24 | 三菱電機株式会社 | Elevator hoist support device |
-
2001
- 2001-03-29 DE DE60125066T patent/DE60125066T2/en not_active Expired - Lifetime
- 2001-03-29 JP JP2002545046A patent/JP4300799B2/en not_active Expired - Fee Related
- 2001-03-29 CN CN01810135.6A patent/CN1189381C/en not_active Expired - Lifetime
- 2001-03-29 EP EP01917629A patent/EP1380530B1/en not_active Expired - Lifetime
- 2001-03-29 WO PCT/JP2001/002666 patent/WO2002079068A1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0905081A2 (en) * | 1997-09-26 | 1999-03-31 | Kabushiki Kaisha Toshiba | Positioning of drive unit in an elevator shaft |
Non-Patent Citations (1)
Title |
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See also references of WO02079068A1 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7178636B2 (en) | 2003-03-25 | 2007-02-20 | Mitsubishi Denki Kabushiki Kaisha | Elevator system |
EP2067734A1 (en) * | 2006-09-29 | 2009-06-10 | Mitsubishi Electric Corporation | Elevator device |
EP2067734A4 (en) * | 2006-09-29 | 2013-04-24 | Mitsubishi Electric Corp | Elevator device |
US8839911B2 (en) | 2009-04-28 | 2014-09-23 | Otis Elevator Company | Elevator machine frame with noise reducing configuration |
CN104355207A (en) * | 2014-10-22 | 2015-02-18 | 日立电梯(中国)有限公司 | Elevator system |
CN105314505A (en) * | 2015-11-06 | 2016-02-10 | 上海交通大学 | Traction rope fixing structure for elevator traction testing and elevator traction testing device |
CN105314505B (en) * | 2015-11-06 | 2018-07-03 | 上海交通大学 | The traction cord-fixing structure and elevator traction experimental rig of elevator traction experiment |
Also Published As
Publication number | Publication date |
---|---|
CN1430574A (en) | 2003-07-16 |
EP1380530B1 (en) | 2006-12-06 |
JP4300799B2 (en) | 2009-07-22 |
DE60125066D1 (en) | 2007-01-18 |
DE60125066T2 (en) | 2007-06-28 |
JPWO2002079068A1 (en) | 2004-07-22 |
CN1189381C (en) | 2005-02-16 |
WO2002079068A1 (en) | 2002-10-10 |
EP1380530A4 (en) | 2005-06-29 |
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