Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
  • B66B5/0043—Devices enhancing safety during maintenance
  • B66B5/005—Safety of maintenance personnel
  • B66B5/0081—Safety of maintenance personnel by preventing falling by means of safety fences or handrails, being operable or not, mounted on top of the elevator car

Definitions

• the present invention relates to a car handrail device that is provided on a car and surrounds a work area for maintenance and inspection work on the car.
• a worker rides on the car and performs maintenance and inspection work on equipment in the hoistway and on-car equipment.
• a car handrail device is generally provided on the car.
• the car In order to make the gap between the car and the hoistway ceiling when stopped on the top floor as small as possible, and to reduce the amount of the hoistway top protruding from the top of the building, the car must physically move past the top floor It is necessary that the equipment on the car does not collide with the ceiling of the hoistway when moving to the highest position where it can be ascended, and that the safety of workers when working on the basket must be ensured.
• FIG. 10 is a perspective view showing a conventional car railing device of the related art shown in, for example, Japanese Utility Model Publication No. 2-4-2704, and FIG. FIG. 12 is a side view showing the handrail device, and FIG. 12 is a side view showing a state where the car handrail device of FIG. 11 is folded.
• the car handrail device 2 provided on the car 1 is assembled at the time of maintenance and inspection.
• the car handrail device 2 is folded down and its height is reduced, as shown in FIG.
• the present invention has been made to solve the above-described problems, and can prevent interference with beams and equipment located above a car, and can reduce costs with a simple structure.
• the aim is to obtain an evening car railing device.
• An elevator car handrail device is provided on a car and surrounds a work area for maintenance and inspection work on the car, and is spaced apart from each other in a width direction of the car.
• a pair of fixed handrails and a pair of fixed handrails which are erected at the top of the car, one end of which is located near the front end of the car, and the other end of which is located in the middle of the car in the depth direction.
• FIG. 1 is a side view showing a car handrail device of an elevator in accordance with Embodiment 1 of the present invention
• FIG. 2 is a sectional view taken along the line I I—II of FIG. 1,
• FIG. 3 is a side view showing a state in which the rotating handrail of FIG. 1 is rotated to the open position
• FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3,
• FIG. 5 is a side view showing an elevator car handrail device according to Embodiment 2 of the present invention.
• FIG. 6 is a sectional view taken along the line VI-VI of FIG. 5,
• FIG. 7 is a plan view showing a main part of a car handrail device for an elevator in accordance with Embodiment 3 of the present invention.
• FIG. 8 is a plan view showing a main part of a car handrail device for an elevator in accordance with Embodiment 4 of the present invention.
• FIG. 9 shows a main part of a car handrail device for an elevator in accordance with Embodiment 5 of the present invention. Plan view,
• FIG. 10 is a perspective view showing an example of a conventional elevator handrailing device for an elevator.
• FIG. 11 is a side view showing the car handrail device of FIG. 10,
• FIG. 12 is a side view showing a state where the car handrail device of FIG. 11 is folded.
• FIG. 1 is a side view showing an elevator car handrail device according to Embodiment 1 of the present invention
• FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
• a pair of guide rails 12 are provided in a hoistway 11.
• the car 13 is moved up and down in the hoistway 11 by being guided by the guide rails 12.
• car doors 14 and 15 are provided before and after the car 13, respectively.
• landing doors 16 and 17 are provided opposite the car doors 14 and 15.
• a building beam 18 used to lift equipment during the installation of the elevator.
• the car handrail device 20 On the car 13, a car handrail device 20 surrounding work areas A and B for maintenance and inspection work on the car 13 is provided.
• the car handrail device 20 has a pair of fixed handrails 21 and 22 and a pair of rotating handrails 23 and 24.
• the fixed handrails 21 and 22 are erected at the upper part of the car 13 at an interval in the width direction of the car 13 (vertical direction in FIG. 2).
• One end of the fixed handrails 21 and 22 is located near the front end of the car 13.
• the other ends of the fixed handrails 21 and 22 are located in the middle of the car 13 in the depth direction (the left-right direction in FIG. 2).
• the pivoting handrails 23 and 24 extend from the other end of the pair of fixed handrails 21 and 22 along the width direction of the car 13 and close the other end, as shown in FIGS. 3 and 4.
• the pair of fixed handrails 21 and 22 are rotatable (double door type) between the other end of the pair of handrails 21 and an open position extending along the depth direction of the car 13.
• the car handrail device 20 it is possible to prevent the car handrail device 20 from interfering with the beam 18 and the equipment located above the car 13.
• the work areas A and B can be switched simply by rotating the handrails 23 and 24, and at the same time, interference with the beams 18 and equipment can be avoided. Therefore, costs can be reduced with a simple structure, and maintenance work time can be reduced. Can be prevented from becoming longer.
• the lifting beam 18 used during the installation of the elevator can be removed after the installation, but in that case, it takes time.
• the car handrail device 20 since the car handrail device 20 does not interfere with the beam 18, the beam 18 can be left, and labor for removal can be saved. Can be.
• FIG. 5 is a side view showing a car handrail device for an elevator in accordance with a second embodiment of the present invention
• FIG. 6 is a sectional view taken along the line VI-VI of FIG.
• the car door 14 is provided only on the front side of the car 13.
• a rear handrail 25 is arranged at the rear end of the car 13 so as to connect the front ends of the rotating handrails 23, 24 when in the open position.
• Other configurations are the same as those of the first embodiment.
• FIG. 7 is a plan view showing a main part of a car handrail device of an elevator according to Embodiment 3 of the present invention.
• the stoppers 26, 27, which restrict the pivoting handrails 23, 24 from turning in the opening direction by the contact of the tips of the pivoting handrails 23, 24, are provided with the rear handrail 2 5 are provided at both ends.
• Other configurations are the same as those of the second embodiment.
• FIG. 8 is a plan view showing a main part of a car handrail device of an elevator according to Embodiment 4 of the present invention.
• the rotating handrails 23 and 24 are held in a closed position by a set screw 28 as a holding means for connecting them. Further, the rotating handrails 23, 24 are constantly biased in the direction of rotating to the position by the torsion coil springs 29, 30 as biasing means.
• the rotating handrails 23, 24 are urged by the torsion coil springs 29, 30, the rotating handrails 23, 24 can be easily moved to the open position simply by removing the set screw 28. It can be rotated, and workability can be improved.
• the holding means is not limited to the set screw 28, but may be, for example, a rotating handrail.
• holding means May be a combination of a permanent magnet and a magnetic plate fixed to the rotating handrails 23 and 24 and attracted to each other. Further, the holding means may be a one-way wire or the like that is connected between the rotating handrails 23 and 24.
• the urging means is not limited to the torsion coil springs 29, 30.
• FIG. 9 is a plan view showing a main part of a car handrail device for an elevator in accordance with Embodiment 5 of the present invention.
• a microswitch 31 is disposed between the rotating handrails 23 and 24 as detecting means for detecting whether the rotating handrails 23 and 24 are in the closed position.
• the microswitch 31 is mounted on one of the handrails 23 and is operated by the other handrail 24.
• the detection signal from the microswitch 31 is output to a control device (not shown) for controlling the operation of the elevator.
• a control device for controlling the operation of the elevator.
• normal operation is possible when the rotating handrail 24 is in the closed position.
• the rotating handrail 24 is not in the closed position, it is considered that there is a possibility of interference with the beams 18 and the like, and the ascending range of the car 13 is limited.
• the provision of the microswitch 31 more reliably prevents the rotating handrails 23, 24 from interfering with the beams 18, devices, etc. above the car 13. be able to.
• the detection means is not limited to the microswitch 31, but another mechanical switch, an optical switch, a proximity sensor, or the like can be used.

Landscapes

• Cage And Drive Apparatuses For Elevators (AREA)
• Maintenance And Inspection Apparatuses For Elevators (AREA)

Priority Applications (5)

Applications Claiming Priority (1)

Publications (1)

Family

ID=11736870

Family Applications (1)

Country Status (5)

Cited By (3)

Families Citing this family (6)

Citations (3)

• 2000
  • 2000-12-28 JP JP2002554610A patent/JP4694096B2/ja not_active Expired - Fee Related
  • 2000-12-28 EP EP00985997A patent/EP1346942B1/de not_active Expired - Lifetime
  • 2000-12-28 WO PCT/JP2000/009425 patent/WO2002053484A1/ja active IP Right Grant
  • 2000-12-28 DE DE60040100T patent/DE60040100D1/de not_active Expired - Lifetime
  • 2000-12-28 CN CN00819195.6A patent/CN1289377C/zh not_active Expired - Fee Related

Patent Citations (3)

Non-Patent Citations (1)

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