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 apparatus in which an independent machine room is not provided above a hoistway, that is, a so-called machine room-less elevator apparatus.
• FIG. 10 is a perspective view showing a main part of a conventional elevator apparatus disclosed in, for example, Japanese Patent No. 2593288, and FIG. 11 shows the elevator apparatus of FIG. It is a top view.
• a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed in a hoistway 1.
• a driving device 4 having a traction sheave 5 is arranged at an upper part in the hoistway 1.
• the middle part of the main rope 6 is wound around the traction sleeve 5.
• One end 6a of the main groove 6 is fixed to the upper end of the cage guide rail 2, and the other end 6b of the main rope 6 is fixed to the upper end of the counterweight guide rail 3.
• the car 7 is suspended on the main rope 6 between the traction machine 5 and one end 6a.
• a pair of car suspension wheels 8 around which the main rope 6 is wound are provided.
• the counterweight 9 is suspended on the main rope 6 between the traction sleeve 5 and the other end 6b. At the upper end of the counterweight 9, a weight suspension wheel 10 around which the main rope 6 is wound is provided.
• a driving device 4 is disposed between a region where a car 7 is projected in a vertical direction and a wall 1a of a hoistway 1. This eliminates the need for a machine room.
• the present invention has been made to solve the above-described problems, and has as its object to obtain an elevator apparatus capable of reducing a plane dimension of a hoistway.
• An elevator apparatus includes a hoistway, a car and a counterweight alternately moved up and down in the hoistway, a main rope for suspending the car and the counterweight in the hoistway, And a gear sheave having a trough sheave around which the main rope is wound and rotated directly by the motor and arranged above the hoistway to raise and lower the car and the counterweight via the main rope. And a part of the driving device is arranged in an area where the car is projected in the elevating direction.
• the elevator apparatus includes a hoistway, a car that is raised and lowered in the hoistway, a main rope that suspends the car in the hoistway, and a car that is disposed at an upper part in the hoistway.
• a handrail that can be displaced between an extended position passing through the drive device area where the car is projected in the vertical direction of the car and a storage position outside the drive device area, a handrail detection switch that detects the position of the moving handrail, and It is equipped with a control device that regulates the ascent range of the car according to the information from the handrail detection switch.
• FIG. 1 is a perspective view showing a main part of an elevator apparatus according to Embodiment 1 of the present invention.
• FIG. 2 is a plan view showing the elevator apparatus of FIG.
• FIG. 3 is a plan view showing an elevator apparatus according to Embodiment 2 of the present invention.
• FIG. 4 is a plan view showing an elevator apparatus according to Embodiment 3 of the present invention.
• FIG. 5 is a plan view showing an elevator apparatus according to Embodiment 4 of the present invention.
• FIG. 6 is an explanatory diagram showing the relationship between the driving device and the handrail in the elevator apparatus shown in FIGS. 1 to 5;
• FIG. 7 is a side view showing a main part of an elevator apparatus according to Embodiment 5 of the present invention.
• FIG. 8 is a plan view showing an elevator apparatus according to Embodiment 6 of the present invention.
• FIG. 9 is a side view showing a main part of the elevator apparatus of FIG. 8,
• FIG. 10 is a perspective view showing a main part of a conventional elevator apparatus
• FIG. 11 is a plan view showing the elevator apparatus of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
• FIG. 1 is a perspective view showing a main part of an elevator apparatus according to Embodiment 1 of the present invention
• FIG. 2 is a plan view showing the elevator apparatus of FIG.
• the driving device 13 is a gearless type in which the traction sheave 12 is directly rotated by the motor 11.
• a gearless drive device 13 for example, the one disclosed in Japanese Patent Application Laid-Open No. Hei 7-187187 is used.
• the middle portion of the main rope 6 is wound around the traction sleeve 12.
• One end 6a of the main rope 6 is fixed to the upper end of the cage guide rail 2, and the other end 6b of the main rope 6 is fixed to the upper end of the counterweight guide rail 3. ing.
• the car 7 is suspended on the main rope 6 between the traction sheave 12 and one end 6a.
• a pair of car hanging wheels 8 around which the main rope 6 is wound are provided.
• the counterweight 9 is suspended on the main rope 6 between the traction sheave 12 and the other end 6b. At the upper end of the counterweight 9, a weight suspension wheel 10 around which the main rope 6 is wound is provided. At the top of the car 7, a handrail 14 used for maintenance work is provided.
• the driving device 13 is supported by, for example, guide rails 2 and 3 above the range in which the car 7 can move up and down. Further, a part of the driving device 13 is disposed inside a region where the car 7 is projected in the elevating direction.
• the driving device 13 is arranged above the elevator area of the car 7.
• the distance between the car 1 and the wall 1 a of the hoistway 1 should be reduced because the drive 13 is installed inside the area where the drive 13 is projected in the vertical direction. And the plane dimension of the hoistway 1 can be reduced.
• what needs to be placed between the wall 1a and the car 7 is a part of the traction sheave 12, and the main rope 6 extending downward from the traction sheave 12 interferes with the car 7. Otherwise, most of drive 13 can overlap the top of car 7.
• the driving device 13 is disposed obliquely with respect to the wall la due to the restriction of the arrangement of the main ropes 6, but, for example, as shown in FIG.
• a driving device 13 can be arranged so that the rotation axis of the traction sheave 12 is perpendicular to the wall la by providing a turning pulley 15 on the main lobe 6 around the wall 1a.
• the space between the hoistway 1 and the car 7 can be further reduced, and the plane dimension of the hoistway 1 can be further reduced.
• FIG. 4 is a plan view showing an elevator apparatus according to Embodiment 3 of the present invention.
• a counterweight 9 is arranged behind the car 7.
• the driving device 13 is disposed obliquely above the corner of the car 7. Thereby, the distance between the car 7 and the wall 1a of the hoistway 1 can be reduced. Further, the corner part 14 a of the handrail 14 is separated from the corner of the car 7, thereby avoiding interference with the driving device 13.
• FIG. 5 is a plan view showing an elevator apparatus according to Embodiment 4 of the present invention.
• a deflecting vehicle 17 is provided at the upper part in the hoistway 1.
• a main rope 6 is wound around the deflector 17 at a portion between the traction sheave 12 and the weight suspension wheel 10.
• the driving device 13 rotates the traction sheave 12 It is arranged so that the axis is parallel to the frontage direction of car 7 (left-right direction in the figure).
• FIG. 6 is an explanatory diagram showing the relationship between the driving device 13 and the handrail 14 in the elevator apparatus shown in FIGS. 1 to 5.
• the handrail 14 is disposed inside the car 7 relative to the driving device 13. Also, the handrail 14 is used when the counterweight 9 collides with a shock absorber (not shown) arranged at the bottom of the hoistway 1 and the car 7 is flipped up to the position indicated by the two-dot chain line in the figure. Are also arranged so as not to interfere with the driving device 13. Thereby, the height H of the top gap can be reduced.
• Embodiment 5 is also arranged so as not to interfere with the driving device 13. Thereby, the height H of the top gap can be reduced.
• the handrail 14 is set up on the upper part of the car 7, but as shown in FIG. 7, for example, the handrail 14 is folded so that it can be turned down except when in use. Only (turnable).
• a ceiling light 16 is provided at the upper part of the car 7, but the ceiling light 16 is not provided on the periphery 7 a of the car 7.
• the height of only a may be reduced. This makes it possible to secure a sufficient clearance between the peripheral portion 7a of the car 7 when the car 7 jumps up and the driving device 13 and to more reliably prevent interference between the two.
• FIG. 8 is a plan view showing an elevator apparatus according to Embodiment 6 of the present invention
• FIG. 9 is a side view showing a main part of the elevator apparatus of FIG.
• a driving device 21 for raising and lowering the car 7 is arranged at an upper portion in the hoistway 1. Further, a part (actually most) of the drive unit 21 is arranged in an area where the car 7 is projected in the elevating direction.
• a fixed handrail 22 is fixed.
• a movable handrail 23 that can reciprocate in the left-right direction in FIG. 8 is connected to the fixed handrail 22.
• the moving handrail 23 can be displaced between an extended position A passing through the drive projection area where the drive 21 is projected in the vertical direction of the car 7 and a storage position B outside the drive projection area. ing.
• the fixed handrails 22 and the moving handrails 23 serve as safety fences for maintenance work.
• a handrail detection switch 24 for detecting the position of the moving handrail 23 is provided between the fixed handrail 22 and the moving handrail 23.
• the handrail detection switch 24 is connected to a control device 25 for controlling the operation of the elevator device.
• the control device 25 is indicated by a block.
• the control device 25 regulates the ascending range of the car 7 according to the information from the handrail detection switch 24.
• a collision prevention switch device 26 for stopping the elevation of the car 7 by contact is provided below the drive device 21.
• the anti-collision switch device 26 includes a plurality of mounting members 27, a contact member 28 supported by the mounting members 27 so as to be vertically movable, and a plurality of connecting members for connecting the mounting member 27 and the contact members 28. And a contact detection switch 30 operated by upward movement of the link 29 and the contact body 28.
• the handrail detection switch 24 is energized, and the car 7 can be fully automatically operated at the rated speed. . In addition, even when the car 7 stops at the top floor, the moving handrail 23 does not interfere with the driving device 21.
• the equipment such as the counterweight 9 from the area surrounded by the moving handrail 23 Maintenance becomes possible. Further, the handrail detection switch 24 is deenergized, and the ascending range of the car 7 is restricted, so that the moving handrail 23 is more reliably prevented from interfering with the drive device 21.
• the moving handrail that slides in the horizontal direction in FIG. may be configured to rotate around a connecting portion with the fixed handrail 22 as an axis.

Landscapes

• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Cage And Drive Apparatuses For Elevators (AREA)
• Catching Or Destruction (AREA)
• Maintenance And Inspection Apparatuses For Elevators (AREA)

Priority Applications (4)

Applications Claiming Priority (1)

Publications (1)

Family

ID=11735706

Family Applications (1)

Country Status (4)

Cited By (12)

Families Citing this family (6)

Citations (6)

• 2000
  • 2000-02-22 CN CNB008066191A patent/CN1178843C/zh not_active Expired - Lifetime
  • 2000-02-22 DE DE60041439T patent/DE60041439D1/de not_active Expired - Lifetime
  • 2000-02-22 WO PCT/JP2000/001008 patent/WO2001062654A1/ja active Application Filing
  • 2000-02-22 EP EP00904099A patent/EP1172321B1/de not_active Expired - Lifetime

Patent Citations (6)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events