JP2008030898A - Elevator car device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an improved elevator car device securing safety of a worker and preventing falling down of tools, maintenance components or the like when the worker performs work above a car in a hoistway. <P>SOLUTION: When the worker 70 performs maintenance work such as disassembling inspection of a hoisting machine 72 mounted to a hoisting machine mounting member 71, the lower side of the hoisting machine 72 is received by a net 13 by hanging hooks 17 provided at a tip of a net device 11 on the hoisting machine 72 side on a structure in the vicinity of the lower side of the hoisting machine 72. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator car apparatus in which an operating handrail is erected on an upper part of an elevator car and work is performed by an operator on the upper part of the car.

  Conventionally, a lower rail is pivotally attached to the edge of one side of the upper portion of an elevator car (hereinafter simply referred to as a car), and the elevator is normally placed on the upper portion of the car, and the one-side handrail is erected when necessary. The other handrail is pivotally attached to the edge of the other side opposite the one side at the upper part of the car, and is normally placed on the upper part of the car and standing when necessary, and between the one handrail and the other handrail. As in the case of the one-side rail or the other-side rail, there is an elevator car apparatus having a connection handrail that is normally placed on the top of the car and erected when necessary (for example, Patent Documents) 1).

  In this elevator car apparatus, the connecting handrail is normally held in a fall position along the upper part of the car, and the elevator is arranged and held on the connecting handrail where both the one handrail and the other handrail are lying down. The During maintenance work of the elevator equipment provided in the hoistway, both the one-side handrail and the other-side handrail are first rotated and held in the standing position, and then the connection side handrail is rotated and the standing position is set. It is comprised so that it may be hold | maintained.

JP 2002-284469 A (paragraphs 0014 to 0020, FIGS. 1 and 3)

  In the conventional elevator car apparatus disclosed in Patent Document 1, when a worker performs an operation on the upper part of the car in the hoistway, the safety of the worker himself is secured by a handrail erected on the upper part of the car. However, tools and maintenance parts may be dropped from one handrail, the other handrail, or between the connection handrails. In such a case, there is a problem that the tools and maintenance parts cannot be collected. In addition, there is a problem of causing a so-called secondary disaster, which is a cause of damage or failure of other equipment due to dropping of tools or maintenance parts.

  The present invention is intended to solve such problems, and in the hoistway, when the worker performs work on the upper part of the car, the worker's own safety is ensured, and the tool and the maintenance part are also provided. It is an object of the present invention to provide an improved elevator car apparatus that does not cause the vehicle to fall.

  An elevator car apparatus according to the present invention includes a car frame upper beam attached to an upper side edge of an elevator car, and a car handrail that is always installed in a lying state on the car frame upper beam and constitutes a standing state when necessary. A net device that is mounted on the beam on the car frame by attaching / detaching means, and the net device is a net that is wound around a shaft member provided in a case, and the winding direction of the net is the shaft member. And a urging means for constantly urging the urging member and a locking member attached to the tip of the net.

  According to the present invention, it is possible to prevent the tool or component from being accidentally dropped into the hoistway by the net device during the inspection work of the hoistway hoisting machine or the control panel. It also has the effect of preventing secondary disasters that damage hoistway equipment and cause unexpected elevator failures.

  Exemplary embodiments of an elevator car apparatus according to the present invention will be explained below in detail with reference to the accompanying drawings.

Embodiment 1 FIG.
1 to 6 are diagrams for explaining Embodiment 1 of the present invention, in which FIG. 1 is a perspective view of an upper portion of a car, FIG. 2 is a perspective view of a net device, and FIG. 3 is a cross-sectional view taken along line BB in FIG. FIG. 4 is a partial perspective view for explaining a mounting portion of the net device, FIG. 5 is a perspective view for explaining details of a winding portion of the net device, and FIG. 6 is a perspective view of a state in which the net device is mounted on the upper portion of the car.

  In FIG. 1, a guide shoe 2 is attached to both sides of the upper side of the car 1, and the guide shoe 2 moves along a car frame column 3 installed in the hoistway to guide the car 1 to move up and down. . The car 1 is provided with a car door 5 that is opened and closed by a door opening and closing device 4, and an illumination case 7 that houses a lighting fixture on a ceiling upper surface 6.

  A car frame upper beam 8 is attached to an upper side edge of the car 1, and a car upper handrail 9 is provided on the car frame upper beam 8. As in the above-mentioned Patent Document 1, the car upper handrail 9 is normally placed on the upper part of the car 1 in a lying state, and when necessary, the one handrail 9a that constitutes the standing state and the one side at the upper part of the car 1 It is opposed to the handrail 9a, and is normally placed on the top of the car 1 in a lying state. When necessary, it is disposed between the other handrail 9b and the one handrail 9a and the other handrail 9b. Similar to the side handrail 9a or the other side handrail 9b, the handrail 9c is provided with a connection side handrail 9c that is normally installed on the upper portion of the car 1 and is in a standing state when necessary. As shown in an enlarged view of a portion A indicated by a dot-and-dash line circle in FIG.

  Next, as shown in FIG. 2 and FIG. 3, the net device 11 includes a net winding shaft 12 that is a shaft member and a net 13 that is spirally wound around multiple layers. The case is housed in the case 14 together with the net winding shaft 12. The tip portion of the net 13 protrudes from the net outlet 15 of the case 14, and a net frame 16 is attached to the tip portion of the protruding net 13 in the width direction. The net frame 16 is made of a soft member and is formed wider than the net outlet 15 of the case 14. A brush 18 is attached to the net frame 16 together with a locking member such as a hook 17.

  The net device 11 is configured as described above, and is attached to the car frame upper beam 8 by inserting the net take-up shaft 12 into the bearing hole 20 of the mounting bracket 19 attached to the car frame upper beam 8. .

  As shown in FIG. 4, the net winding shaft 12 is configured such that a shaft end member 12 a attached to the tip thereof is urged in the axial direction by a spring 21 that is an elastic member. That is, the attaching / detaching means 22 is constituted by the shaft end member 12a and the spring 21 which is an elastic member, and the shaft device 12a of the attaching / detaching means 22 is urged in the axial direction by the spring 21, so that the net device 11 is connected to the cage. The net device 11 is attached to the frame upper beam 8 and is detached from the car frame upper beam 8 by pressing the shaft end member 12a against the elastic force of the spring 21 of the attaching / detaching means 22. ing. As a result, the net device 11 can be attached to and detached from the car frame upper beam 8, and can be removed when not in use. As shown in FIG. 5, urging means, that is, a winding spring 23 is attached to both ends of the net winding shaft 12, and the net 13 is always in the winding direction by the winding spring 23. Is being energized. The urging means may be constituted by other means such as an electric motor in place of the take-up spring 23. However, the take-up spring 23 has an advantage that it can be constructed at low cost.

  The elevator car apparatus according to the first embodiment is configured as described above, and when an operator works on the upper part of the car 1 in the hoistway, as shown in FIG. The shaft 12 is inserted into the bearing hole 20 of the mounting bracket 19 attached to the frame upper beam 8 and attached to the car frame upper beam 8. Next, the net frame 16 is pulled up by hand, and the hook 17 is hooked on the pin member 10 of the car upper handrail 9 to cover the periphery of the car upper handrail 9 with the net device 11 as shown in FIG.

  As described above, according to the elevator car apparatus of the first embodiment, when working on a normal car upper part, the periphery of the car upper handrail 9 is covered with the net device 11 as shown in FIG. Has the effect of preventing falling into the hoistway. Further, when a passenger is rescued from a rescue exit (not shown) provided on the ceiling of the car 1 due to a malfunction of the elevator, a net device is provided around the car upper handrail 9 so that the hoistway is not completely seen from the passenger. By covering with 11, there is an effect that the passenger can be rescued without giving anxiety.

Embodiment 2. FIG.
Next, Embodiment 2 will be described with reference to FIG. FIG. 7 is a view showing the second embodiment, and is a perspective view showing maintenance work of the hoistway hoisting machine. That is, when the worker 70 performs maintenance work such as overhaul of the hoisting machine 72 attached to the hoisting machine attachment member 71, the hook 17 at the tip of the net device 11 on the hoisting machine 72 side is wound. The lower side of the hoisting machine 72 can be received by the net 13 by being hung on a structure near the lower part of the upper machine 72. The hoisting machine 72 raises and lowers the car 1 by winding the hoisting rope 73, and the other parts are the same as those in the first embodiment, and thus the same reference numerals are given and the description thereof is omitted.

  According to the second embodiment, for example, when the operator 70 performs an overhaul of the hoisting machine 72, it can be received by the net 13 even if tools or parts are dropped. Further, by configuring the net frame 16 with a soft material, it can be adapted to the shape of the structure on which the hook 17 is hung. Further, since the brush 18 provided at the tip of the net 13 acts to close the gap between the hook 17 hung on the hoistway structure and the hoistway wall, it is possible to prevent small parts such as bolts from dropping from the gap. .

Embodiment 3 FIG.
Next, Embodiment 3 will be described with reference to FIG. In the second embodiment, the example in which the net 13 is hung on the hoistway structure with the hook 17 provided at the tip has been described. However, the third embodiment is arranged on the hook 17 as shown in FIG. Is provided with a magnet 81 and can be attached to a hoistway device or structure with the magnet 81. Since other parts are the same as those in the first embodiment, the same reference numerals are given and description thereof is omitted.

  According to the third embodiment, the net 13 can be attached by the magnetic force of the magnet 81 as long as it is a metal member even if the hook 17 cannot be hooked, and the hook 17 or the magnet 81 can be attached. Therefore, versatility can be improved.

  In each of the above-described embodiments, an example in which the present invention is applied to a machine room-less elevator in which a hoisting machine or a control panel is placed in a hoistway has been illustrated and described. It goes without saying that it is also good.

  As described above, the elevator car apparatus according to the present invention can be used when an operator works on the upper part of the car in the hoistway.

It is a perspective view of the cage | basket | car upper part in Embodiment 1 of this invention. It is a perspective view of the net device in Embodiment 1 of this invention. FIG. 3 is a sectional view taken along line B-B in FIG. 2. It is a fragmentary perspective view of the attachment part of the net | network apparatus in Embodiment 1 of this invention. It is a detailed perspective view of the winding part of the net | network apparatus in Embodiment 1 of this invention. It is a perspective view of the state which equipped the net | network apparatus in Embodiment 1 of this invention in the cage | basket | car upper part. FIG. 10 is a perspective view showing maintenance work for the hoistway hoist according to the second embodiment. FIG. 10 is a perspective view of a net device in a third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Guide shoe 3 Car frame pillar 4 Door opening / closing device 5 Car door 6 Ceiling top surface 7 Lighting case 8 Car frame upper beam 9 Car upper handrail 10 Pin member 11 Net device 12 Net winding shaft 13 Net 14 Case 15 Net take-out port 16 Net frame 17 Hook 18 Brush 19 Mounting bracket 20 Bearing hole 21 Shaft 22 Attachment / detachment means 23 Winding spring 70 Worker 71 Hoisting machine attaching member 72 Hoisting machine 73 Hoisting rope 80 String 81 Magnet

Claims (6)

A car frame upper beam attached to the upper side edge of the elevator car;
A car handrail that is always installed in a lying state on the beam on the car frame and constitutes a standing condition when necessary,
A net device detachably attached to the beam on the car frame by a detachable means,
The net device includes a net wound around a shaft member provided in a case, urging means for constantly urging the shaft member in a winding direction of the net, and a member attached to a tip portion of the net. An elevator car device comprising a stop member.   2. The elevator car apparatus according to claim 1, wherein a soft net frame member is attached to a tip of the net, and a brush is attached to the net frame member.   The elevator car apparatus according to claim 1 or 2, wherein the biasing means is a take-up spring wound around the shaft member.   The said attaching / detaching means includes a shaft end member mounted on an end portion of the shaft member, and an elastic member that constantly urges the shaft end member in the axial direction. The elevator car apparatus according to any one of 3 above.   The elevator car apparatus according to any one of claims 1 to 4, wherein the locking member is a magnet.   The elevator car apparatus according to any one of claims 1 to 4, wherein the locking member is a hook.

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