US20010047908A1 - Traction type elevator - Google Patents
Traction type elevator Download PDFInfo
- Publication number
- US20010047908A1 US20010047908A1 US09/387,769 US38776999A US2001047908A1 US 20010047908 A1 US20010047908 A1 US 20010047908A1 US 38776999 A US38776999 A US 38776999A US 2001047908 A1 US2001047908 A1 US 2001047908A1
- Authority
- US
- United States
- Prior art keywords
- cage
- elevator
- recited
- base
- support
- 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
Links
- 230000002238 attenuated effect Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
- B66B7/046—Rollers
-
- 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
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0266—Passive systems
- B66B11/0273—Passive systems acting between car and supporting frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
- B66B7/048—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes including passive attenuation system for shocks, vibrations
Definitions
- the present invention relates to a traction type elevator having a cage suspended by cables placed around car sheaves.
- FIG. 1 is a front view of one example of a traction type elevator
- FIG. 2 is a perspective view of an elevator cage shown in FIG. 1.
- FIG. 1 and FIG. 2 opposite ends of a cable 82 are secured to the upper part of a shaft 83 .
- the cable 82 is placed around a traction sheave 85 driven by a hoisting machine 84 having a motor (not shown ).
- a cage 80 for accommodating passengers and a counter weight 86 for balancing the cage 80 are suspended by the cable 82 through a weight sheave 87 and car sheaves 81 of the cage 80 .
- the cable 82 and the traction sheave 85 are located within the space between the cage 80 and a shaft wall 88 . Therefore, if the hoisting machine 84 driving the traction sheave 85 is located within the space between the cage 80 and the shaft wall 88 , the cage 80 can move up and down without expanding the size of the shaft 83 .
- the traction sheave 85 is locked by a brake (not shown) so as not to rotate. After passengers get on and off, at the time the cage 80 starts to move, the brake is off.
- the weight of the counter weight 86 is designed approximately half of the maximum permissible load of the cage 80 . That is, if the maximum permissible load of the cage 80 is 1,000 lbs, the weight of the counter weight 86 is 500 lbs. When passengers weighing a half of the maximum permissible load board the cage 80 , the cage 80 and the counter weight 86 are nearly balanced.
- the motor of the traction sheave 85 is provided with a necessary torque according to a load of the cage 80 before the brake is turned off.
- the load of the cage 80 is detected by a load sensor.
- the cage has a “double” type construction in which the cage is composed of a cab for accommodating passengers and an outer frame supporting the cab through a rubber elastic member (see JP 10-119495), and the load detector is installed between the cab and the cage frame in order to detect the deformation of the rubber elastic member. Then the load of the cage 80 is calculated on the basis of the deformation of the rubber elastic member.
- vibration caused by a tension change of the cable 82 around the hoisting machine 84 can be transferred to the cage 80 via the car sheaves 81 .
- one object of the invention is to provide an elevator suspended by a cable through car sheaves, which can improve comfort of a ride in the cage without using the “double” construction in which the cage is surrounded and supported by an exterior frame.
- a new and improved elevator including a cage configured to move up and down in a shaft along a guide rail, a plurality of car sheaves installed at a bottom of the cage, a cable placed around the car sheaves and configured to suspend the cage, a hoisting machine having a traction sheave configured to drive the cable, a base extending in a width direction of the cage and configured to support the car sheaves, and a first elastic member lying between the cage and the base.
- FIG. 1 is a front view of a conventional traction type elevator
- FIG. 2 is a perspective view of an elevator cage shown in FIG. 1;
- FIG. 3 is a perspective view of an elevator cage of a first embodiment of the present invention.
- FIG. 4 is a side view of the elevator cage shown in FIG. 3;
- FIG. 5 is a partial side view of the elevator cage shown in FIG. 3;
- FIG. 6 is a side view of the car sheave 2 b showing a second embodiment of the present invention.
- FIG. 7 is a perspective view of an elevator cage of a third embodiment of the present invention.
- FIG. 8 is a perspective view of an elevator cage of a third embodiment of the present invention.
- FIG. 9 is a perspective view of an elevator cage of a fourth embodiment of the present invention.
- FIG. 10 is a side view of the elevator in FIG. 9;
- FIG. 11 is a partial side view of an elevator cage of a fifth embodiment of the present invention.
- FIG. 12 is a side view of an elevator cage of a sixth embodiment of the present invention.
- FIG. 13 is a side view of an elevator cage of a seventh embodiment of the present invention.
- the structure for moving the elevator up and down is generally the same as that shown in FIG. 1. That is, both ends of a cable 3 are secured to the upper part of a shaft 83 .
- the cable 3 is placed around a traction sheave 85 in FIG. 1 driven by a hoisting machine 84 having a motor (not shown).
- a cage 1 shown in FIG. 3, for accommodating passengers and a counter weight 86 shown in FIG. 1 for balancing the cage 1 are suspended by the cable 3 through a weight sheave 87 of the counter weight 86 and car sheaves 2 a and 2 b of the cage 1 .
- a pair of car sheaves 2 a and 2 b is installed at the bottom of the cage 1 .
- the cable 3 is placed around the car sheaves 2 a and 2 b .
- one end of the cable 3 is secured to the ceiling part of the shaft 83
- the other end of the cable 3 is secured to the ceiling part of the shaft 83 through the traction sheave 85 and the weight sheave 87 .
- the car sheaves 2 a and 2 b are rotatably attached to respective axles 4 a and 4 b through respective bearings ( not shown ).
- the axles 4 a and 4 b are secured to both edges of a support base 5 extending in the width direction of the cage 1 .
- the support base 5 is U-shaped with opposed members facing opposite sides of the car sheaves 2 a and 2 b .
- a support plate 10 is provided on the upper side of the support base 5 .
- two lower roller guides 9 are attached to the support plate 10 near opposed edges of the support base 5 , and the roller guides 9 guide the cage 1 along a pair of guide rails 8 installed on a wall of the shaft 83 .
- Each of the lower roller guides 9 is composed of three rollers which engage the opposed sides and end of the appended center member of the guide rail 8 .
- a guide shoe having no rollers sliding along the guide rail 83 can be substituted for the lower roller guides 9 .
- slant planes 5 a and 5 b inclined by at an approximately 45° angle formed at opposite edges of the support base 5 , and axles 4 a and 4 b are secured on the slant planes 5 a and 5 b by U-shaped bolts 6 a and 6 b .
- the angle of slant planes 5 a , 5 b depends on the direction of a resultant force of a tension F 1 and a tension F 2 .
- the angle of slant planes 5 a and 5 b is designed to be perpendicular to the resultant force so that the U-shaped bolts 6 a and 6 b can avoid receiving a shear force.
- Plates 5 c and 5 d are disposed on the upper side of the support plate 10
- rubber plates 7 a and 7 b are disposed on the plates 5 c and 5 d .
- a base 11 made of a bent metal plate is secured to the bottom of the cage 1 , and the support base 5 is attached to the base 11 through rubber plates 7 a and 7 b .
- a deformation sensor 12 is installed between the support base 5 and the base 11 so as to detect the deformation of the rubber plates 7 a and 7 b .
- the signal of the deformation of the rubber plates 7 a and 7 b from the deformation sensor 12 is transmitted to a controller (not shown) for an elevator, and the controller calculates a load of the cage 1 .
- vibration caused by a contact point between the cable 3 and the car sheaves 2 a and 2 b , and vibration caused by a tension change of the cable 3 are transferred to the cage 1 .
- a tension F 1 between the car sheaves 2 a and 2 b applies to the support base 5 as a compressive force. Consequently, the rubber plates 7 a and 7 b hardly receive a shearing force, a tensile force and a bending force, which might be caused by the tension F 1 .
- the rubber plates 7 a and 7 b basically receive only compressive force.
- the axles 4 a and 4 b of the car sheaves 2 a and 2 b are supported on the slant planes 5 a and 5 b with an angle of 45°, that is to say, since the angle of slant planes 5 a and 5 b is designed to be perpendicular to a resultant force of the tension F 1 and the tension F 2 , the resultant force is basically applied to the slant planes 5 a and 5 b .
- the U-shaped bolts 6 a and 6 b can avoid receiving a shear force caused by tensions F 1 and F 2 .
- the support plate 10 extends in the axles direction of the car sheaves 2 a and 2 b , a bending moment applied to the car sheaves 2 a and 2 b can be received by the support plate 10 . Therefore, although the car sheaves 2 a and 2 b are attached to the cage 1 through the rubber plates 7 a and 7 b , the car sheaves 2 a and 2 b can avoid being inclined by the bending moment.
- the lower guides 9 can be directly secured to the cage 1 without being supported by the rubber plates 7 a and 7 b . In this case, although vibration transferred from the lower guides 9 can not be attenuated efficiently, the lower roller guides 9 can guide the cage 1 effectively.
- a load of the cage 1 is calculated on the basis of a deformation of the rubber plates 7 a and 7 b detected by the deformation sensor 12 , a necessary torque based on the load of the cage 1 is provided for a motor driving the traction sheave 85 before a brake of the traction sheave 85 is turned off. Therefore, an unexpected sudden movement of the cage 1 can be prevented at the time the brake is turned off.
- FIG. 6 is a side view of the car sheave 2 b showing a second embodiment of the present invention, in which the edge of the support base 5 supporting the axis 21 of the car sheave 2 b is enlarged.
- one corner of the support base 5 is bent to form a slant plate 23 slanting 45° off the horizontal plane. That is, the slant plate 23 is slanted to be perpendicular to a resultant force of a tension F 1 and a tension F 2 of the cable 3 shown in FIG. 3.
- the axle 21 of the car sheave 2 b is secured to the slant plate 23 by a U-shaped bolt 25 through an elastic member such as a rubber element 24 .
- the axle has a support plane 25 a which faces the rubber element 24 .
- a rubber plate 26 lies on the other side of the slant plate 23 , and is secured with the U-shaped bolt 25 and nuts 26 through a plate 27 .
- the slant plate 23 has holes (not shown) pierced by the U-shaped bolt 25 , and the holes are big enough so that the U-shaped bolt 25 does not contact the slant plate 23 .
- vibration and noise caused by a contact point between the cable 3 and the car sheaves 2 a and 2 b are attenuated by the rubber element 24 and the rubber plate 26 .
- the attenuated vibration is then transferred to the support base 5 , and finally transferred to the cage 1 through the rubber plates 7 a and 7 b .
- the comfort of a ride in the cage 1 can be improved.
- the slant plate 23 is slanted 45° off a horizontal plane so that the rubber element 24 and the rubber plate 26 can receive only compressive forces from the cable 3 , an anti-vibration effect can be achieved efficiently. That is because rubber plates can attenuate vibration in the compressive direction efficiently, but are not competent to attenuate vibration in the shearing direction.
- the support base 5 can be secured to the base 11 without the rubber plates 7 a and 7 b , although the support base 5 is secured to the base 11 through the rubber plates 7 a and 7 b in the second embodiment.
- a deformation sensor might be installed to detect the deformation of the rubber plate 2 b in order to calculate a load of the cage 1 .
- FIG. 7 is a perspective view of an elevator of a third embodiment of the present invention. Since the third embodiment includes components added to the first embodiment, in the following description, only components different from the components explained in the first embodiment are described.
- upper roller guides 31 a and 31 b are secured on opposite edges of a support beam 33 attached on a crosshead 35 of the cage 1 through rubber plates 34 a and 34 b.
- both upper roller guides 31 a and 31 b are secured to the support beam 33 , the upper roller guides 31 a and 31 b can be supported firmly against a force pushing down the upper roller guides 31 a and 31 b and can obtain a high reliability.
- the upper roller guides 31 a and 31 b can be directly attached to the crosshead 35 without the support beam 33 .
- FIG. 9 is a perspective view of an elevator of a fourth embodiment of the present invention.
- FIG. 10 is a side view of the elevator in FIG. 9.
- two support plates 41 a and 41 b extending in the depth direction of the cage 1 are attached to a lower side of the base 11
- two support plates 40 a and 40 b extending in the depth direction of the cage 1 are attached to a upper side of the support base 5 .
- Rubber plates 42 a and 42 b are positioned to both ends of the support plates 40 a and 40 b , and are disposed between the support plates 41 a and 41 b , and the support plates 40 a and 40 b.
- the cage 1 can be supported firmly against a force pushing down the cage 1 in the depth direction of the cage 1 (i.e., the direction extending from the front door to the back wall of the cage 1 ).
- FIG. 11 is a partial side view of an elevator of a fifth embodiment of the present invention.
- support planes 45 a and 45 b slanting 45° off the horizontal plane in the width direction of the cage 1 are formed at both lower edges of the base 11
- support planes 47 a and 47 b slanting 45° corresponding to the support planes 45 a and 45 b are formed at both upper edges of the support base 5 .
- Rubber plates 46 a and 46 b are disposed between the support planes 45 a and 45 b , and the support planes 47 a and 47 b so that the pressed sides of the rubber plates 46 a and 46 b are inclined by 45° in the width direction of the cage 1 .
- the vibration transferred to the cage 1 can be attenuated by the rubber plates 46 a and 46 b .
- the rubber plates 46 a and 46 b can attenuate either vibration in the vertical direction or vibration in the width direction of the cage 1 .
- the pressed sides of the rubber plates 46 a and 46 b need not be inclined only by 45°. In fact, the angle of inclination depends on what kind of vibration is expected during travel of the cage 1 or how big the vibration is.
- FIG. 12 is a side view of an elevator cage of a sixth embodiment of the present invention.
- support planes 51 slanting 45° off the horizontal plane in the depth direction of the cage 1 are formed at the lower side of the base 11
- support planes 50 slanting 45° corresponding to the support planes 51 are formed at the upper side of the support base 5 .
- Rubber plates 52 are disposed between the support planes 51 and the support planes 50 so that the pressed sides of the rubber plates 52 incline by 45° in the depth direction of the cage 1 .
- the vibration transferred to the cage 1 can be attenuated by the rubber plates 52 .
- the rubber plates 52 can attenuate either vibration in the vertical direction or vibration in the depth direction of the cage 1 .
- the pressed sides of the rubber plates 52 need not be inclined by only 45°. It depends on what kind of vibration is expected during travel of the cage 1 or how big the vibration is.
- FIG. 13 is a side view of an elevator of a seventh embodiment of the present invention.
- each of support bars 60 is secured to a lower side of the cage 1 , and the other end of each of support bars 60 is secured to respective sides of the support base 5 through elastic members 61 made of rubber, for example.
- the support base 5 can be supported firmly against a force pushing down the support base 5 in the depth direction of the cage 1 . Further, vibration transferred from the support bars 60 is attenuated by the elastic members 61 .
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Automation & Control Theory (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
- This application claims benefit of priority to Japanese Patent Application No. JP10247386 filed Sep. 1, 1998, the entire disclosure of which is incorporated by reference herein.
- 1. Field of the Invention
- The present invention relates to a traction type elevator having a cage suspended by cables placed around car sheaves.
- 2. Description of the Background
- FIG. 1 is a front view of one example of a traction type elevator, and FIG. 2 is a perspective view of an elevator cage shown in FIG. 1.
- In FIG. 1 and FIG. 2, opposite ends of a
cable 82 are secured to the upper part of ashaft 83. Thecable 82 is placed around atraction sheave 85 driven by a hoistingmachine 84 having a motor ( not shown ). Acage 80 for accommodating passengers and acounter weight 86 for balancing thecage 80 are suspended by thecable 82 through aweight sheave 87 andcar sheaves 81 of thecage 80. - In this type of elevator, the
cable 82 and thetraction sheave 85 are located within the space between thecage 80 and ashaft wall 88. Therefore, if the hoistingmachine 84 driving thetraction sheave 85 is located within the space between thecage 80 and theshaft wall 88, thecage 80 can move up and down without expanding the size of theshaft 83. - In general, when the
cage 80 stops at a floor in order to let passengers on and off thecage 80, thetraction sheave 85 is locked by a brake (not shown) so as not to rotate. After passengers get on and off, at the time thecage 80 starts to move, the brake is off. The weight of thecounter weight 86 is designed approximately half of the maximum permissible load of thecage 80. That is, if the maximum permissible load of thecage 80 is 1,000 lbs, the weight of thecounter weight 86 is 500 lbs. When passengers weighing a half of the maximum permissible load board thecage 80, thecage 80 and thecounter weight 86 are nearly balanced. Accordingly, if the upwardbound cage 80 is filled with passengers at a floor, at the moment the brake is turned off in order to move thecage 80 upwardly, thecage 80 moves downwardly for a moment and then moves up as requested. On the contrary, if the downwardbound cage 80 has no passengers at a floor, at the moment the brake is turned off in order to move thecage 80, thecage 80 moves upwardly for a moment and then moves down in the right direction. To prevent the above unexpected sudden movement of thecage 80, the motor of thetraction sheave 85 is provided with a necessary torque according to a load of thecage 80 before the brake is turned off. The load of thecage 80 is detected by a load sensor. In conventional elevators, the cage has a “double” type construction in which the cage is composed of a cab for accommodating passengers and an outer frame supporting the cab through a rubber elastic member (see JP 10-119495), and the load detector is installed between the cab and the cage frame in order to detect the deformation of the rubber elastic member. Then the load of thecage 80 is calculated on the basis of the deformation of the rubber elastic member. - However, in the above mentioned elevator, since the
car sheaves 81 near thecage 80 rotate fast in contact with thecable 82, vibration and noise can be transferred to thecage 80 easily. - Further, vibration caused by a tension change of the
cable 82 around the hoistingmachine 84 can be transferred to thecage 80 via thecar sheaves 81. - To attenuate vibration and noise in the conventional elevator cage having the “double” construction as mentioned above, and elastic rubber members are installed between the cab and the cage frame. But this makes the
cage 80 heavier and complicates the structure of thecage 80. - Accordingly, one object of the invention is to provide an elevator suspended by a cable through car sheaves, which can improve comfort of a ride in the cage without using the “double” construction in which the cage is surrounded and supported by an exterior frame.
- This and other objects are achieved according to the present invention by providing a new and improved elevator including a cage configured to move up and down in a shaft along a guide rail, a plurality of car sheaves installed at a bottom of the cage, a cable placed around the car sheaves and configured to suspend the cage, a hoisting machine having a traction sheave configured to drive the cable, a base extending in a width direction of the cage and configured to support the car sheaves, and a first elastic member lying between the cage and the base.
- A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
- FIG. 1 is a front view of a conventional traction type elevator;
- FIG. 2 is a perspective view of an elevator cage shown in FIG. 1;
- FIG. 3 is a perspective view of an elevator cage of a first embodiment of the present invention.
- FIG. 4 is a side view of the elevator cage shown in FIG. 3;
- FIG. 5 is a partial side view of the elevator cage shown in FIG. 3;
- FIG. 6 is a side view of the
car sheave 2 b showing a second embodiment of the present invention; - FIG. 7 is a perspective view of an elevator cage of a third embodiment of the present invention;
- FIG. 8 is a perspective view of an elevator cage of a third embodiment of the present invention;
- FIG. 9 is a perspective view of an elevator cage of a fourth embodiment of the present invention;
- FIG. 10 is a side view of the elevator in FIG. 9;
- FIG. 11 is a partial side view of an elevator cage of a fifth embodiment of the present invention;
- FIG. 12 is a side view of an elevator cage of a sixth embodiment of the present invention; and
- FIG. 13 is a side view of an elevator cage of a seventh embodiment of the present invention.
- Referring now to the drawings, wherein like reference numerals designate the same or corresponding parts throughout the several views, and more particularly referring to FIGS.3-5 thereof, a first embodiment of the invention is next described.
- In the first embodiment, the structure for moving the elevator up and down is generally the same as that shown in FIG. 1. That is, both ends of a
cable 3 are secured to the upper part of ashaft 83. Thecable 3 is placed around atraction sheave 85 in FIG. 1 driven by a hoistingmachine 84 having a motor (not shown). Acage 1, shown in FIG. 3, for accommodating passengers and acounter weight 86 shown in FIG. 1 for balancing thecage 1 are suspended by thecable 3 through aweight sheave 87 of thecounter weight 86 andcar sheaves cage 1. - As shown in FIGS.3-5, a pair of
car sheaves cage 1. Thecable 3 is placed around thecar sheaves cable 3 is secured to the ceiling part of theshaft 83, and the other end of thecable 3 is secured to the ceiling part of theshaft 83 through thetraction sheave 85 and theweight sheave 87. Thecar sheaves respective axles axles support base 5 extending in the width direction of thecage 1. As shown in FIG. 4, thesupport base 5 is U-shaped with opposed members facing opposite sides of thecar sheaves support plate 10 is provided on the upper side of thesupport base 5. Further, twolower roller guides 9 are attached to thesupport plate 10 near opposed edges of thesupport base 5, and theroller guides 9 guide thecage 1 along a pair ofguide rails 8 installed on a wall of theshaft 83. Each of thelower roller guides 9 is composed of three rollers which engage the opposed sides and end of the appended center member of theguide rail 8. A guide shoe having no rollers sliding along theguide rail 83 can be substituted for thelower roller guides 9. Furthermore, as shown in FIG. 5,slant planes 5 a and 5 b inclined by at an approximately 45° angle formed at opposite edges of thesupport base 5, andaxles slant planes 5 a and 5 b byU-shaped bolts slant planes 5 a, 5 b depends on the direction of a resultant force of a tension F1 and a tension F2. That is, the angle ofslant planes 5 a and 5 b is designed to be perpendicular to the resultant force so that theU-shaped bolts Plates support plate 10, andrubber plates plates cage 1, and thesupport base 5 is attached to the base 11 throughrubber plates deformation sensor 12 is installed between thesupport base 5 and the base 11 so as to detect the deformation of therubber plates rubber plates deformation sensor 12 is transmitted to a controller ( not shown) for an elevator, and the controller calculates a load of thecage 1. - According to the first embodiment, vibration caused by a contact point between the
cable 3 and the car sheaves 2 a and 2 b, and vibration caused by a tension change of thecable 3 are transferred to thecage 1. A tension F1 between the car sheaves 2 a and 2 b applies to thesupport base 5 as a compressive force. Consequently, therubber plates rubber plates - Further, since the
axles slant planes 5 a and 5 b is designed to be perpendicular to a resultant force of the tension F1 and the tension F2, the resultant force is basically applied to the slant planes 5 a and 5 b. Thus, theU-shaped bolts - Furthermore, since the
support plate 10 extends in the axles direction of the car sheaves 2 a and 2 b, a bending moment applied to the car sheaves 2 a and 2 b can be received by thesupport plate 10. Therefore, although the car sheaves 2 a and 2 b are attached to thecage 1 through therubber plates - Moreover, since the lower roller guides9 are attached to the
support plate 10 disposed on thesupport base 5, vibration transferred from the lower roller guides 9 can be attenuated by therubber plates - Furthermore, the
lower guides 9 can be directly secured to thecage 1 without being supported by therubber plates lower guides 9 can not be attenuated efficiently, the lower roller guides 9 can guide thecage 1 effectively. - In the first embodiment, since a load of the
cage 1 is calculated on the basis of a deformation of therubber plates deformation sensor 12, a necessary torque based on the load of thecage 1 is provided for a motor driving thetraction sheave 85 before a brake of thetraction sheave 85 is turned off. Therefore, an unexpected sudden movement of thecage 1 can be prevented at the time the brake is turned off. - Accordingly, since vibration caused by contact points between the
cable 3 and the car sheaves 2 a and 2 b is attenuated by therubber plates cage 1, the comfort of a ride in thecage 1 can be improved. Further, since therubber plates support base 5, the support structure of the car sheaves 2 a and 2 b can be simplified. Similarly, since the slant planes 5 a and 5 b of thesupport plate 5 basically receive only compressive forces from theaxles axles cage 1 need not be encased in an outer frame, i.e., need not have the “double” construction, so that thecage 1 can be simple and lightweight, and a load applied to thecable 3 can be reduced. - FIG. 6 is a side view of the
car sheave 2 b showing a second embodiment of the present invention, in which the edge of thesupport base 5 supporting theaxis 21 of thecar sheave 2 b is enlarged. - Since the second embodiment modifies a part of the elevator of the first embodiment of the present invention, in the following description, only components different from the components explained in the first embodiment are described.
- As shown in FIG. 6, one corner of the
support base 5 is bent to form aslant plate 23 slanting 45° off the horizontal plane. That is, theslant plate 23 is slanted to be perpendicular to a resultant force of a tension F1 and a tension F2 of thecable 3 shown in FIG. 3. Theaxle 21 of thecar sheave 2 b is secured to theslant plate 23 by aU-shaped bolt 25 through an elastic member such as arubber element 24. The axle has asupport plane 25 a which faces therubber element 24. Arubber plate 26 lies on the other side of theslant plate 23, and is secured with theU-shaped bolt 25 andnuts 26 through aplate 27. Further, theslant plate 23 has holes (not shown) pierced by theU-shaped bolt 25, and the holes are big enough so that theU-shaped bolt 25 does not contact theslant plate 23. - Although only the structure of one corner of the
support base 5 is shown in FIG. 6 for the sake of convenience, the other corner of thesupport base 5 has the same structure shown in FIG. 6. - According to the second embodiment, vibration and noise caused by a contact point between the
cable 3 and the car sheaves 2 a and 2 b are attenuated by therubber element 24 and therubber plate 26. The attenuated vibration is then transferred to thesupport base 5, and finally transferred to thecage 1 through therubber plates cage 1 can be improved. - Moreover, since the
slant plate 23 is slanted 45° off a horizontal plane so that therubber element 24 and therubber plate 26 can receive only compressive forces from thecable 3, an anti-vibration effect can be achieved efficiently. That is because rubber plates can attenuate vibration in the compressive direction efficiently, but are not competent to attenuate vibration in the shearing direction. - Furthermore, since the
rubber element 24 and therubber plate 26 are disposed on both sides of theslant plate 23, in case the car sheaves 2 a and 2 b move either in the going away direction from theslant plate 23 or in the direction of going toward to theslant plate 23, a compressive force can be received by either therubber element 24 or therubber plate 26. - Furthermore, the
support base 5 can be secured to thebase 11 without therubber plates support base 5 is secured to the base 11 through therubber plates rubber plate 2 b in order to calculate a load of thecage 1. - FIG. 7 is a perspective view of an elevator of a third embodiment of the present invention. Since the third embodiment includes components added to the first embodiment, in the following description, only components different from the components explained in the first embodiment are described.
- As shown in FIG. 7, upper roller guides31 a and 31 b are secured on opposite edges of a
support beam 33 attached on acrosshead 35 of thecage 1 throughrubber plates - According to the third embodiment, since vibration caused by unevenness of
guide rails 8 and transferred from the upper roller guides 31 a and 31 b can be attenuated by therubber plates cage 1 can be improved. - Further, since both upper roller guides31 a and 31 b are secured to the
support beam 33, the upper roller guides 31 a and 31 b can be supported firmly against a force pushing down the upper roller guides 31 a and 31 b and can obtain a high reliability. - If the
rubber plates crosshead 35 without thesupport beam 33. - FIG. 9 is a perspective view of an elevator of a fourth embodiment of the present invention. FIG. 10 is a side view of the elevator in FIG. 9.
- In the following description, only components different from the components explained in the first embodiment shown in FIGS.3-5 are described.
- As shown in FIG. 9 and FIG. 10, two
support plates cage 1 are attached to a lower side of thebase 11, and twosupport plates cage 1 are attached to a upper side of thesupport base 5.Rubber plates support plates support plates support plates - According to the fourth embodiment, since the
rubber plates support plates cage 1, thecage 1 can be supported firmly against a force pushing down thecage 1 in the depth direction of the cage 1 (i.e., the direction extending from the front door to the back wall of the cage 1). - FIG. 11 is a partial side view of an elevator of a fifth embodiment of the present invention.
- In the following description, only components different from the components explained in the first embodiment shown in FIGS.3-5 are described.
- As shown in FIG. 11, support planes45 a and 45 b slanting 45° off the horizontal plane in the width direction of the
cage 1 are formed at both lower edges of thebase 11, andsupport planes support base 5.Rubber plates rubber plates cage 1. - According to the fifth embodiment, since the pressed side of the
rubber plates cage 1, in case thecage 1 is swayed in the width direction of thecage 1 and then vibration in the width direction of thecage 1 occurs, the vibration transferred to thecage 1 can be attenuated by therubber plates rubber plates cage 1, therubber plates cage 1. - Furthermore, the pressed sides of the
rubber plates cage 1 or how big the vibration is. - FIG. 12 is a side view of an elevator cage of a sixth embodiment of the present invention.
- In the following description, only components different from the components explained in the first embodiment shown in FIGS.3-5 are described.
- As shown in FIG. 12, support planes51 slanting 45° off the horizontal plane in the depth direction of the
cage 1 are formed at the lower side of thebase 11, andsupport planes 50 slanting 45° corresponding to the support planes 51 are formed at the upper side of thesupport base 5.Rubber plates 52 are disposed between the support planes 51 and the support planes 50 so that the pressed sides of therubber plates 52 incline by 45° in the depth direction of thecage 1. - According to the sixth embodiment, since the pressed side of the
rubber plates 52 incline by 45° in the depth direction of thecage 1, in case thecage 1 is swayed in the depth direction of thecage 1 and then vibration in the depth direction of thecage 1 occurs, the vibration transferred to thecage 1 can be attenuated by therubber plates 52. In other words, since the pressed sides of therubber plates 52 incline by 45° in the depth direction of thecage 1, therubber plates 52 can attenuate either vibration in the vertical direction or vibration in the depth direction of thecage 1. - Furthermore, the pressed sides of the
rubber plates 52 need not be inclined by only 45°. It depends on what kind of vibration is expected during travel of thecage 1 or how big the vibration is. - FIG. 13 is a side view of an elevator of a seventh embodiment of the present invention.
- In the following description, only components different from the components explained in the first embodiment shown in FIGS.3-5 are described.
- As shown in FIG. 13, one end of each of support bars60 is secured to a lower side of the
cage 1, and the other end of each of support bars 60 is secured to respective sides of thesupport base 5 throughelastic members 61 made of rubber, for example. - According to the seventh embodiment, since both sides of the
support base 5 are secured to the support bars 60, thesupport base 5 can be supported firmly against a force pushing down thesupport base 5 in the depth direction of thecage 1. Further, vibration transferred from the support bars 60 is attenuated by theelastic members 61. - Various modifications and variations are possible in light of the above teachings. Therefore, within the scope of the appended claims, the present invention may be practiced otherwise than as specifically described herein.
Claims (13)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10-247386 | 1998-09-01 | ||
JP24738698A JP4131764B2 (en) | 1998-09-01 | 1998-09-01 | Elevator equipment |
JPPH10-247386 | 1998-09-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010047908A1 true US20010047908A1 (en) | 2001-12-06 |
US6443266B2 US6443266B2 (en) | 2002-09-03 |
Family
ID=17162666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/387,769 Expired - Fee Related US6443266B2 (en) | 1998-09-01 | 1999-09-01 | Traction type elevator |
Country Status (7)
Country | Link |
---|---|
US (1) | US6443266B2 (en) |
EP (1) | EP0983957A3 (en) |
JP (1) | JP4131764B2 (en) |
KR (1) | KR100374659B1 (en) |
CN (1) | CN1077543C (en) |
MY (1) | MY121771A (en) |
TW (1) | TW553881B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070045053A1 (en) * | 2004-04-28 | 2007-03-01 | Mitsubishi Denki Kabushiki Kaisha | Elevator apparatus |
US20100181149A1 (en) * | 2007-06-08 | 2010-07-22 | Otis Elevator Company | Elevator system with guide axis aligned with traction member |
US7930959B1 (en) * | 2005-05-18 | 2011-04-26 | Larry Greene | Table saw accessory |
US9580277B2 (en) | 2010-11-30 | 2017-02-28 | Kone Corporation | Elevator car suspension |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001083350A1 (en) * | 2000-05-01 | 2001-11-08 | Inventio Ag | Load-carrying means for cable-operated elevators with an integrated load measurement device |
FI118732B (en) * | 2000-12-08 | 2008-02-29 | Kone Corp | Elevator |
US9573792B2 (en) * | 2001-06-21 | 2017-02-21 | Kone Corporation | Elevator |
ES2302816T3 (en) * | 2001-06-21 | 2008-08-01 | Kone Corporation | ELEVATOR. |
FI119234B (en) * | 2002-01-09 | 2008-09-15 | Kone Corp | Elevator |
US7377366B2 (en) | 2002-11-25 | 2008-05-27 | Otis Elevator Company | Sheave assembly for an elevator system |
EP1671915B1 (en) * | 2004-12-10 | 2010-08-04 | Inventio AG | Pulley arrangement for elevators |
SG123668A1 (en) * | 2004-12-10 | 2006-07-26 | Inventio Ag | Pulley arrangement for elevators |
DE502005009483D1 (en) * | 2005-03-12 | 2010-06-10 | Thyssenkrupp Elevator Ag | elevator system |
EP1700811B1 (en) * | 2005-03-12 | 2013-01-09 | ThyssenKrupp Elevator AG | Elevator |
CN101074078A (en) * | 2006-05-19 | 2007-11-21 | 沈阳博林特电梯有限公司 | Elevator crane bridging system |
CN101298307B (en) * | 2007-05-03 | 2010-06-23 | 因温特奥股份公司 | Elevator equipment, a slewing roller for elevator equipment and a method for installing a load sensor |
CN102105382B (en) * | 2008-06-17 | 2014-08-27 | 奥蒂斯电梯公司 | Underslung elevator car configuration |
EP2334583B1 (en) * | 2008-08-01 | 2015-10-07 | Otis Elevator Company | Elevator car assembly comprising a vibration damper |
WO2010121944A1 (en) * | 2009-04-20 | 2010-10-28 | Inventio Ag | Operating state monitoring of support means of an elevator system |
US8515014B2 (en) * | 2009-11-30 | 2013-08-20 | At&T Intellectual Property I, L.P. | Methods, apparatus and articles of manufacture to characterize customer-premises networks |
JP5582801B2 (en) * | 2010-01-27 | 2014-09-03 | 東芝エレベータ株式会社 | Elevator car frame |
WO2012031961A1 (en) | 2010-09-09 | 2012-03-15 | Inventio Ag | Load measuring device for an elevator installation |
JP5776424B2 (en) * | 2011-08-03 | 2015-09-09 | フジテック株式会社 | Elevator equipment |
WO2013190342A1 (en) | 2012-06-20 | 2013-12-27 | Otis Elevator Company | Actively damping vertical oscillations of an elevator car |
CN105452143B (en) * | 2013-08-02 | 2017-06-30 | 三菱电机株式会社 | Underslung elevator |
KR101614474B1 (en) * | 2014-05-30 | 2016-04-22 | 한국철도기술연구원 | The lower section of the complex way the elevator for transporting equipment |
CN107922155B (en) * | 2015-08-17 | 2019-12-17 | 奥的斯电梯公司 | Elevator buffer system |
WO2019043109A1 (en) | 2017-08-31 | 2019-03-07 | Inventio Ag | Elevator system with vibration damping |
JP6918745B2 (en) * | 2018-05-18 | 2021-08-11 | 株式会社日立ビルシステム | Double-deck elevator repair work method |
EP3705435B1 (en) | 2019-03-05 | 2021-09-15 | KONE Corporation | A combined elevator vibration isolation and load measurement element |
DE202019101607U1 (en) * | 2019-03-20 | 2020-05-08 | Wittur Holding Gmbh | Elevator for particularly small elevator shafts |
JP7052892B1 (en) * | 2021-01-06 | 2022-04-12 | フジテック株式会社 | Elevator car device and elevator |
CN114810769B (en) * | 2021-01-29 | 2024-01-09 | 三一汽车制造有限公司 | Arm-saving assembly and arm support equipment |
CN113772519B (en) * | 2021-09-27 | 2023-03-24 | 鸿羚鲲鲱(重庆)装配式建筑工程有限公司 | Telescopic lift car |
EP4361081A1 (en) * | 2022-10-28 | 2024-05-01 | Wittur Holding GmbH | Suspension elevator |
WO2024094915A1 (en) * | 2022-11-03 | 2024-05-10 | Kone Corporation | Elevator car and elevator |
Family Cites Families (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5344737B2 (en) * | 1972-12-01 | 1978-12-01 | ||
JPS5869689A (en) * | 1981-10-19 | 1983-04-25 | 東芝昇降機サ−ビス株式会社 | Spring buffer for elevator |
JPS5936089A (en) * | 1982-08-19 | 1984-02-28 | 三菱電機株式会社 | Drive for elevator |
JPS63180684U (en) * | 1987-05-14 | 1988-11-22 | ||
JPH0742065B2 (en) * | 1987-12-10 | 1995-05-10 | 三菱電機株式会社 | Elevator car support equipment |
JPH01256486A (en) * | 1988-04-06 | 1989-10-12 | Hitachi Ltd | Riding cage device for elevator |
ATE80123T1 (en) * | 1988-07-12 | 1992-09-15 | Inventio Ag | DEVICE FOR ANTI-VIBRATION IN ELEVATOR CABINS. |
FI884380A (en) * | 1988-09-23 | 1990-03-24 | Kone Oy | FOERFARANDE OCH ANORDNING FOER DAEMPANDET AV VIBRATIONER I EN HISSKORG. |
JPH0295693A (en) * | 1988-09-30 | 1990-04-06 | Toshiba Corp | Vibration absorbing device for elevator |
ATE88679T1 (en) * | 1988-11-02 | 1993-05-15 | Inventio Ag | METHOD AND DEVICE FOR PERFORMING THE METHOD FOR VIBRATION ABSORBING ON CABINS IN HIGH-SPEED LIFT. |
US4899852A (en) * | 1988-11-03 | 1990-02-13 | Otis Elevator Company | Elevator car mounting assembly |
FR2647097B1 (en) * | 1989-05-17 | 1991-08-30 | Otis Elevator Co | CHASSIS SUPPORT FOR ELEVATOR CAB |
JPH033888A (en) * | 1989-05-31 | 1991-01-09 | Hitachi Elevator Eng & Service Co Ltd | Lateral oscillation vibration suppressing device for elevator |
JPH0351280A (en) * | 1989-07-19 | 1991-03-05 | Hitachi Elevator Eng & Service Co Ltd | Damping device for rolling of elevator |
JPH03138279A (en) * | 1989-10-23 | 1991-06-12 | Toshiba Corp | Shock absorber for elevator |
US5080201A (en) * | 1990-04-02 | 1992-01-14 | Otis Elevator Company | Diversion of airflow around an elevator counterweight |
JPH04112178A (en) * | 1990-08-31 | 1992-04-14 | Toshiba Corp | Elevator device |
JP2653547B2 (en) * | 1990-10-08 | 1997-09-17 | 株式会社東芝 | elevator |
JPH04213585A (en) * | 1990-12-12 | 1992-08-04 | Toshiba Corp | Elevator |
JPH04303380A (en) * | 1991-04-01 | 1992-10-27 | Mitsubishi Electric Corp | Suspension pulley for elevator |
US5306879A (en) * | 1992-01-30 | 1994-04-26 | Inventio Ag | Load measuring apparatus for an elevator car |
EP0555635A1 (en) * | 1992-02-10 | 1993-08-18 | Inventio Ag | Method and arrangement for reducing the driving power of an hydraulic elevator |
JPH0680342A (en) * | 1992-09-03 | 1994-03-22 | Hitachi Building Syst Eng & Service Co Ltd | Jack tool for exchanging vibrationproof rubber of elevator |
JPH06115848A (en) * | 1992-10-01 | 1994-04-26 | Toshiba Corp | Buffer for elevator |
EP0593296B1 (en) * | 1992-10-15 | 1997-12-29 | Kabushiki Kaisha Toshiba | Elevator passenger car |
JP2709007B2 (en) * | 1992-10-22 | 1998-02-04 | 株式会社日立製作所 | Indirect hydraulic elevator |
US5301773A (en) * | 1992-10-23 | 1994-04-12 | Otis Elevator Company | Positive terminal overspeed protection by rail grabbing |
US5325937A (en) * | 1993-05-13 | 1994-07-05 | Otis Elevator Company | Elevator platform isolation |
FI94123C (en) * | 1993-06-28 | 1995-07-25 | Kone Oy | Pinion Elevator |
KR0108635Y1 (en) * | 1993-11-05 | 1997-11-08 | Lg Ind Systems Co Ltd | Phanlax device of an elevator using a linear motor |
US5899301A (en) * | 1993-12-30 | 1999-05-04 | Kone Oy | Elevator machinery mounted on a guide rail and its installation |
US5490577A (en) * | 1994-06-22 | 1996-02-13 | Otis Elevator Company | Flexible elevator hitch |
JP2521415B2 (en) | 1994-06-30 | 1996-08-07 | 株式会社日立製作所 | Elevator car device |
JPH08231153A (en) * | 1995-02-23 | 1996-09-10 | Toshiba Corp | Elevator |
ATE201380T1 (en) * | 1995-03-10 | 2001-06-15 | Inventio Ag | DEVICE AND METHOD FOR VIBRATION DAMPING ON AN ELEVATOR CABIN |
US5655628A (en) * | 1995-06-28 | 1997-08-12 | Lin; Wen-Tsung | Elevator safety structure |
JPH09110340A (en) * | 1995-10-16 | 1997-04-28 | Hitachi Ltd | Elevator car |
JPH09151064A (en) * | 1995-12-04 | 1997-06-10 | Otis Elevator Co | Rope type elevator |
MY119142A (en) * | 1996-02-12 | 2005-04-30 | Samsung Display Devices Co Ltd | Paste composition for screen printing of crt shadow mask and screen printing method using the same |
US5613667A (en) * | 1996-06-26 | 1997-03-25 | Ho; Jui-Chien | Shock absorber for elevators or the like |
US5899300A (en) * | 1996-12-20 | 1999-05-04 | Otis Elevator Company | Mounting for an elevator traction machine |
-
1998
- 1998-09-01 JP JP24738698A patent/JP4131764B2/en not_active Expired - Fee Related
-
1999
- 1999-07-16 TW TW088112125A patent/TW553881B/en not_active IP Right Cessation
- 1999-07-29 KR KR10-1999-0031064A patent/KR100374659B1/en not_active IP Right Cessation
- 1999-07-31 MY MYPI99003285A patent/MY121771A/en unknown
- 1999-08-03 EP EP99115031A patent/EP0983957A3/en not_active Withdrawn
- 1999-08-12 CN CN99111384A patent/CN1077543C/en not_active Expired - Fee Related
- 1999-09-01 US US09/387,769 patent/US6443266B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070045053A1 (en) * | 2004-04-28 | 2007-03-01 | Mitsubishi Denki Kabushiki Kaisha | Elevator apparatus |
US7930959B1 (en) * | 2005-05-18 | 2011-04-26 | Larry Greene | Table saw accessory |
US20100181149A1 (en) * | 2007-06-08 | 2010-07-22 | Otis Elevator Company | Elevator system with guide axis aligned with traction member |
US8430211B2 (en) * | 2007-06-08 | 2013-04-30 | Otis Elevator Company | Elevator system with guide axis aligned with traction member |
US9580277B2 (en) | 2010-11-30 | 2017-02-28 | Kone Corporation | Elevator car suspension |
Also Published As
Publication number | Publication date |
---|---|
EP0983957A3 (en) | 2002-01-16 |
CN1246439A (en) | 2000-03-08 |
JP4131764B2 (en) | 2008-08-13 |
KR20000022679A (en) | 2000-04-25 |
TW553881B (en) | 2003-09-21 |
MY121771A (en) | 2006-02-28 |
KR100374659B1 (en) | 2003-03-04 |
CN1077543C (en) | 2002-01-09 |
EP0983957A2 (en) | 2000-03-08 |
JP2000072359A (en) | 2000-03-07 |
US6443266B2 (en) | 2002-09-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6443266B2 (en) | Traction type elevator | |
RU2246440C2 (en) | Traction sheave elevator | |
AU2003236219B2 (en) | Machineroomless elevator | |
US8522927B2 (en) | Drive motor for an elevator installation and method of mounting a drive motor | |
US6234276B1 (en) | Traction type elevator having cable hitches securing cable ends to guide rails | |
US7383924B2 (en) | Machine room-less elevator | |
US5566783A (en) | Vehicle parking system | |
EP1471026A9 (en) | Elevator device | |
JP2006515554A (en) | Triangular support structure for elevator systems | |
CA2529342C (en) | Pulley arrangement for elevators | |
WO2006006228A1 (en) | Elevator | |
WO2001074704A1 (en) | Machine-room-less elevator installation structure with traction machine mounted at a rooftop | |
WO2001079105A1 (en) | Machine-room-less elevator installation structure with traction machine mounted in an extended pit | |
JPH0351285A (en) | Balance adjusting device of elevator cage | |
JP3700412B2 (en) | Traction elevator | |
EP1447370B1 (en) | Elevator | |
JP2011042422A (en) | Car of pushing-up type elevator | |
JP4195063B2 (en) | Elevator | |
EP1671915B1 (en) | Pulley arrangement for elevators | |
JP2603889B2 (en) | Guide rails for linear motor driven elevators | |
KR20240009942A (en) | Drive systems for elevator installations, elevator installations, and methods for installing drives on support elements of elevator installations | |
JP2004123273A (en) | Elevator passenger car | |
JPH0543168A (en) | Linear motor-driven elevator | |
JP2004002047A (en) | Elevator device | |
JPH0912248A (en) | Linear motor drive elevator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KABUSHIKI KAISHA TOSHIBA, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MURAKAMI, SHIN;WAGATSUMA, YASUYUKI;SHUDO, TADASHI;REEL/FRAME:010223/0413;SIGNING DATES FROM 19990810 TO 19990820 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FEPP | Fee payment procedure |
Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20140903 |