JP4249503B2 - Machine room-less elevator hoist maintenance method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a maintenance method for a machine room-less elevator, and more particularly to a maintenance method for a machine room-less elevator in which a hoisting machine and a control panel are installed close to each other in order to reduce space.
[0002]
[Prior art]
Many elevators are configured to connect a passenger car and a balance weight on which a user rides with a suspension rope wound around a hoisting machine, and to lift and lower the car in a weight balance with the balance weight. . This is called a rope type elevator. By the way, in such an elevator, as a space in the building where the elevator is installed, a hoistway where the car goes up and down, and a machine room for storing the hoisting machine and the control panel are necessary. It is installed on the roof of the building, and the maintenance work of the elevator is mainly performed in this machine room.
[0003]
On the other hand, for the purpose of minimizing the space for installing the elevator, there has been proposed a machine room-less elevator that does not require a machine room for installing the hoisting machine and the control panel. That is, a method of storing the hoisting machine and the control panel in the upper part or the lowermost part of the hoistway has been adopted (for example, see Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-318948
[Problems to be solved by the invention]
However, in the conventional machine room-less elevator hoist maintenance method having such a configuration, the hoist and the control panel installed in the machine room in the conventional elevator are installed in the hoistway. In order to make the pit depth and overhead dimensions as small as possible, the hoisting machine and the control panel are out of the vertical movement range of the car in the hoistway, that is, the area where the car is projected in the vertical direction. It is necessary to install it in the space between the hoistway inner wall. On the other hand, it is desired to reduce the installation volume of the elevator as much as possible. For this reason, the hoisting machine and the control panel may be provided close to each other in the hoistway. In such an elevator, there is a problem in that a necessary space cannot be secured because the control panel becomes an obstacle during maintenance work of the hoisting machine.
[0006]
The present invention has been made to solve the above-described problems, and is a machine room-less elevator that can secure a space required for maintenance work of a hoist without increasing a hoistway cross-sectional area. The purpose is to obtain a hoist maintenance method.
[0007]
[Means for Solving the Problems]
A machine room-less elevator hoisting machine maintenance method according to the present invention is a machine room-less elevator hoisting machine maintenance method in which a hoisting machine and a control panel are disposed in a hoistway. Provided to be movable between a normal position that interferes with the maintenance work space of the upper machine and a retracted position outside the work space. The upper part of the control panel is pivotably attached to the support member, and the lower part of the control panel is supported by the support member The control panel can be moved between a normal position and a retracted position by rotating the control panel at a predetermined angle obliquely with respect to the vertical direction.When the elevator is in operation, the control panel is moved to the normal position. Fix the control panel in the retracted position when performing maintenance work on the hoisting machine.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIG. 1 is a cross-sectional view of a hoistway 1 showing a space in which equipment can be installed in a hoistway of a machine room-less elevator. In FIG. 1, an arrow A indicates the direction of the landing. A car (not shown) moves up and down in the hoistway 1. Therefore, the hoisting machine and the control panel cannot be arranged in the vertical movement range of the car indicated by the two-dot chain line in the drawing, that is, in the area where the car is projected in the vertical direction. In other words, the hoisting machine and the control panel need to be installed in a U-shaped space (indicated by a thin ink in the drawing) between the area in which the car is projected in the vertical direction and the inner wall of the hoistway 1. . Further, in the hoistway 1, a car guide rail 2 and a counterweight guide rail 3 extending in the car up-and-down direction are arranged, so that the space where the hoisting machine and the control panel can be installed is further limited. Is done.
[0009]
FIG. 2 is a cross-sectional view of the hoistway 1 showing how the maintenance work space of the hoisting machine 5 interferes with the control panel 6. In FIG. 2, the counterweight 6 moves up and down in the hoistway 1 while being guided by the counterweight guide rail 3. The hoisting machine 5 is thin so that it can be installed in a flat space. In the present embodiment, the hoisting machine 5 is disposed at the lowermost part of the hoistway 1. More specifically, the hoisting machine 5 is located at the back of the hoistway 1 at the side of the balance weight guide rail 3. It is installed in parallel with the wall surface 1a. On the other hand, the hoisting machine 5 of the control panel 6 is also arranged at the lowermost part of the hoistway 1 and is installed in parallel to the side wall surface 1b on the side close to the hoisting machine 5. The control panel 6 is installed close to the hoisting machine 5 in order to prevent interference with the vertical frame of the car. In FIG. 2, the portion indicated by the bold and slanted line B is a maintenance work space on the front surface of the hoisting machine 5 required when the hoisting machine 5 is maintained, but the control panel 6 interferes with the maintenance work space. Yes.
[0010]
FIG. 3 is a front view showing a state in which the control panel 6 is fixed at the normal position. FIG. 4 is a front view showing a state in which the control panel 6 is moved to the retracted position. The control panel 6 has a rectangular elongated shape, is made thin so as to be installed in a flat space, and is arranged extending in the vertical direction. The first arm 7 and the second arm 8 are erected in parallel so as to extend from the car guide rail 2 as the hoistway fixing portion to one side in the horizontal direction. The first arm 7 and the second arm 8 are provided to be separated from each other by a predetermined distance in the vertical direction.
[0011]
The upper part of the control panel 6 is supported by a bolt 10 as an upper support shaft. The lower part of the control panel 6 is supported by two bolts 11. As shown in FIG. 4, the control panel 6 is fixed at a predetermined angle as shown in FIG. 4, and secures a predetermined maintenance work space at the front portion of the hoisting machine 5. In FIG. 4, a two-dot chain line indicates a range where the door of the control panel 6 opens. FIG. 5 shows a state in which the doors 6e and 6f of the control panel 6 are opened. The door of the control panel 6 is divided into an upper door 6e and a lower door 6f, which are supported by hinges and can be opened separately. The maintenance method of the present invention secures a maintenance work space for the hoisting machine 5 by fixing the control panel 6 at a retracted position inclined at a predetermined angle. At the same time, the doors 6e and 6f of the control panel 6 are opened. Open wide to improve workability. The upper support shaft is not limited to the bolt 10 as long as the upper support shaft is rotatable to one side.
[0012]
FIG. 6 is a main part front view showing a state in which the upper part of the control panel 6 is supported. 7 is a cross-sectional view taken along the line VII of FIG. A through hole 6c is drilled in the thin plate portion 6a at the top of the control panel 6. The first arm 7 extending from the car guide rail 2 has a female screw hole 7a threaded at a predetermined position. Then, the bolt 10 is screwed into the female screw hole 7a to form a gap D between the head of the bolt 10 and the arm 7, and is tightened by a nut 12 to be screwed on the back surface side. . The thin plate portion 6a of the control panel 6 is rotatably supported in the gap D by passing the bolt 10 through the through hole 6c.
[0013]
FIG. 8 is a front view showing two through holes 6d provided on both sides of the thin plate portion 6b below the control panel 6. FIG. FIG. 9 is a front view showing a normal position fixing screw hole 8 a and a retracted position fixing screw hole 8 b provided in the second arm 8. FIG. 10 is a front view of a main part at a normal position showing a state in which the lower part of the control panel 6 is supported. FIG. 11 is a front view of the main part at the retracted position showing a state in which the lower part of the control panel 6 is supported. As shown in FIG. 8, two through holes 6 d are formed in both side portions of the thin plate portion 6 b below the control panel 6. As shown in the drawing, the second arm 8 extending from the car guide rail 2 has a normal position fixing screw hole as a normal position fixing means at a position corresponding to the two through holes 6d at the normal position. (Female thread hole) 8a is threaded, and when the control panel 6 is moved to the retracted position, the retracted position fixing means as the retracted position fixing means is provided at the position where the right through hole 6d in FIG. 8 is positioned. One screw hole (female screw hole) 8b is threaded.
[0014]
When the lower part of the control panel 6 is in the normal position shown in FIG. 10, the bolts 11 are respectively passed through the two through holes 6 d and fastened to the arm 8. When the control panel 6 is moved from the normal position to the retracted position, first, the two bolts 11 are removed, and a predetermined angle is obtained within a plane parallel to the main surface of the arm 8 as indicated by an arrow C in FIG. The through hole 6d on the right side of FIG. 11 is aligned with the retracted position fixing screw hole 8b and fastened with the bolt 11. The other bolt 11 is screwed into the normal position fixing screw hole 8a on the right side of FIG. 9 so as not to be lost. The fixing means is not limited to the female screw and the bolt screwed to the female screw, but may be other engaging means.
[0015]
In the hoisting machine maintenance method for the machine room-less elevator according to the present embodiment, the control panel 6 has a normal position that interferes with the maintenance work space of the hoisting machine 5 and a retracted position that is out of the work space. The control panel 6 is fixed at a normal position during normal elevator operation, while the control panel 6 is fixed at a retracted position when maintenance work is performed on the hoisting machine 5. Therefore, a space necessary for maintenance work of the hoist 5 can be secured without increasing the cross-sectional area of the hoistway 1.
[0016]
Further, the upper part of the control panel 6 is rotatably attached to the support member, the lower part of the control panel 6 is detachably attached to the support member, and the control panel 6 is rotated by a predetermined angle, so that the normal position and the retracted position are obtained. Therefore, the movable structure of the control panel 6 can be easily realized.
[0017]
Further, the upper part of the control panel 6 is rotatably attached to a bolt 10 erected on the first arm 7 extending from the car guide rail 2, and the second arm 8 extending from the car guide rail 2. In addition, a normal position fixing means for fixing the lower portion of the control panel 6 at the normal position and a retracting position fixing means for fixing at the retracted position are provided, and the fixing position is fixed to the normal position or the retracted position by any of the fixing means. Therefore, the control panel 6 can be reliably fixed at the normal position or the retracted position, and the reliability is improved.
[0018]
Furthermore, the normal position fixing means and the retracted position fixing means are the normal position fixing screw hole 8a and the retracting position fixing screw hole 8b formed in the second arm 8, and the bolt 11 screwed into these. The structure becomes very simple and the cost can be reduced.
[0019]
【The invention's effect】
A machine room-less elevator hoisting machine maintenance method according to the present invention is a machine room-less elevator hoisting machine maintenance method in which a hoisting machine and a control panel are disposed in a hoistway. It is provided so that it can move between the normal position that interferes with the maintenance work space of the upper machine and the retracted position that is out of the work space. When the elevator is in operation, the control panel is fixed at the normal position and maintenance work for the hoisting machine is performed. When performing the operation, the control panel is fixed at the retracted position, so that it is possible to secure a necessary space for the hoisting machine maintenance work without increasing the hoistway cross-sectional area.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a hoistway 1 showing a space in which equipment can be installed in a hoistway of a machine room-less elevator.
FIG. 2 is a cross-sectional view of the hoistway 1 showing how the maintenance work space of the hoisting machine interferes with the control panel.
FIG. 3 is a front view showing a state in which the control panel is fixed at a normal position.
FIG. 4 is a front view showing a state in which the control panel is moved to a retracted position.
FIG. 5 is a perspective view showing a state where the door of the control panel is opened.
FIG. 6 is a main part front view showing a state in which the upper part of the control panel is supported;
7 is a cross-sectional view taken along the line VII of FIG.
FIG. 8 is a front view showing two through holes provided in both side portions of a thin plate portion at the lower part of the control panel.
FIG. 9 is a front view showing a normal position fixing screw hole and a retracted position fixing screw hole provided in the second arm.
FIG. 10 is a front view of a main part at a normal position showing a state in which a lower part of the control panel is supported.
FIG. 11 is a front view of a main part at a retracted position showing a state of supporting the lower part of the control panel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hoistway, 2 Car guide rail (hoistway fixing | fixed part), 5 Hoisting machine, 6 Control board, 6c, 6d Through-hole, 7 1st arm (support member), 8 2nd arm (support member) ), 8a Normal position fixing screw holes (normal position fixing means), 8b Retraction position fixing screw holes (retraction position fixing means), 10 bolts (upper support shaft), 11 bolts.

Claims (3)

A hoisting machine maintenance method for a machine room-less elevator in which a hoisting machine and a control panel are arranged in a hoistway,
The control panel is movably provided between a normal position that interferes with the maintenance work space of the hoist and a retracted position that is out of the work space,
The upper part of the control panel is rotatably attached to a support member, the lower part of the control panel is detachably attached to the support member, and the control panel is rotated at a predetermined angle obliquely with respect to the vertical direction, It is possible to move between the normal position and the retracted position,
During operation of the elevator, the control panel is fixed at the normal position,
When performing the maintenance work of the hoisting machine, the control panel is fixed at the retracted position. A hoisting machine maintenance method for a machine room-less elevator. An upper part of the control panel is rotatably attached to an upper support shaft standing on a first arm extending from the hoistway fixing part,
A second arm extending from the hoistway fixing portion is provided with a normal position fixing means for fixing the lower part of the control panel at the normal position and a retreat position fixing means for fixing at the retraction position, 2. The machine room-less elevator hoist maintenance method according to claim 1 , wherein the hoisting machine is fixed at the normal position or the retracted position by means. The normal position fixing means and the retracted position fixing means, claims, characterized in that said second arm normal position fixing screw formed in the hole and retracted position fixing screw holes and bolt screwed into these Item 3. A machine room-less elevator hoist maintenance method according to Item 2 .

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