JP2008044735A - Toe guard device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toe guard device capable of storing maintenance tools such as a maintenance component, a tool and a stepladder 8 used during maintenance of a control board etc. inside a hoistway pit 2 and improving the appearance of the hoistway pit 2. <P>SOLUTION: The toe guard device is provided with a sill 5 of a landing on the lowermost floor, a side wall in the landing 4 side on the lowermost floor in the hoistway pit 2, a storage part provided on the side wall in the landing 4 side on the lowermost floor and storing the maintenance tools, and a toe guard fixed to the sill 5 of the landing of the lowermost floor so as to hide the storage part from the hoistway pit 2 side. The toe guard comprises a toe guard fixation part 13a fixed to the sill 5 of the landing on the lowermost floor and a toe guard moving part 13b journaled to the toe guard fixation part 13a and rotatable from the position for hiding the storage part from the hoistway pit 2 side to the hoistway pit 2 side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a technique for storing maintenance tools such as maintenance parts, tools, and stepladders in a hoistway pit portion of an elevator.

  In a conventional machine room-less elevator, devices such as a control panel are installed in a hoistway. For this reason, maintenance tools such as maintenance parts, tools, and stepladders used when maintaining the control panel or the like are sometimes stored in an extra space in the hoistway pit.

  Further, as another conventional technique, a proposal related to a toe guard for an elevator hall has been made (see, for example, Patent Document 1 and Patent Document 2). These toe guards are formed with an apron-like panel under the landing sill, and if the elevator car should go too far or deviate from the normal landing position due to landing errors, the top of the car sill and the panel on the landing side In order to prevent children from getting out of the hoistway. In these documents, all toe guards are shown in a short form, but the toe guards are long when the runby (the distance between the lower end of the elevator car and the shock absorber) or the shock absorber stroke is long by the control of the elevator. In particular, in Patent Document 1, a ladder corresponding to a stepladder is used for a landing door in a ladder device for checking an elevator pit that is used to descend from a landing floor on the lowest floor of the elevator to a pit below the elevator hoistway. A footrest provided on a toe guard installed at a lower part of the platform sill, and a ladder for pit inspection provided below the toe guard and extending from directly below the footrest toward the bottom of the pit. An elevator pit inspection ladder device has been proposed in which the footrest functions as a part of the ladder.

Japanese Patent Laid-Open No. 9-227045 Japanese Patent Laid-Open No. 11-43274

  When trying to construct an elevator for observation with a conventional machine room-less elevator, maintenance tools, tools, stepladders and other maintenance tools stored in the hoistway pit can be seen from outside the hoistway, etc. There was a problem.

  Moreover, although the thing of patent document 1 has provided the ladder under the toe guard and also provided the footrest part in a part of the toe guard, it considers about storage of maintenance tools, such as a ladder, other maintenance parts, and a tool. It has not been.

  The present invention has been made to solve the above-described problems, and its purpose is to provide maintenance parts, tools, stepladders and other maintenance tools used when maintaining the control panel and the like in the hoistway pit. It is to provide a toe guard device that can store the hoistway pit and improve the appearance of the hoistway pit.

  The elevator toe guard device according to the present invention is provided on the floor sill of the lowermost floor, on the side wall on the lowermost floor of the hoistway pit, and on the side wall on the landing side of the lowermost floor. And a toe guard fixed to a sill of the lowermost floor so as to conceal the storage from the hoistway pit side.

  This invention is a floor sill of the lowest floor, a side wall on the landing side of the lowermost floor of the hoistway pit, a storage part for storing maintenance tools provided on the side wall on the landing side of the lowermost floor, When maintaining the control panel and the like in the hoistway pit by including a toe guard fixed to the sill of the landing on the lowermost floor so as to hide the storage part from the hoistway pit side Maintenance tools, tools, maintenance tools such as stepladders to be used can be stored, and the appearance of the hoistway pit can be improved.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
FIG. 1 is a longitudinal sectional view in the vicinity of a hoistway pit of an elevator including an elevator toe guard device of the present invention, FIG. 2 is an enlarged view of a portion A in FIG. 1, and a longitudinal sectional view showing the elevator toe guard device of the present invention. FIG. 3 is a longitudinal sectional view showing a state in which the elevator toe guard device of the present invention is horizontally arranged, and FIG. 4 is a perspective view showing a state in which the elevator toe guard device of the present invention is horizontally arranged.

  In general, an elevator has a hoistway pit 2 at the bottom of the hoistway 1, and an elevator car 3 moves up and down in the hoistway 1 to move passengers of the elevator car 3 to each floor of the building. The floor of the landing on each floor of the building protrudes toward the hoistway 1 side, and a landing threshold is formed at the end of the protruding floor with a groove that guides opening and closing of the landing door. In the event that the elevator car 3 is under the threshold of the landing on each floor of the building, the distance between the car's sill tip and the landing side should not be widened if it goes too far or deviates from the normal landing position due to landing errors. In addition, a toe guard is installed to prevent children from entering the hoistway. The elevator toe guard device of the present invention uses a toe guard disposed on the lowest floor of a building, particularly when the hoistway pit 2 is visible from the outside of the hoistway 1 such as an elevator for observation. Hereinafter, the elevator toe guard apparatus of the present invention will be described in detail.

  In the figure, 4 is the lowest floor landing, 5 is the lowest floor landing threshold provided at the end of the floor of the lowest floor landing 4, and 6 is the lower floor landing threshold 5. It is the lowest floor landing door that is guided by a ditch and opens and closes at the entrance of the lowest floor landing 4. The floor of the lowermost hall 4 and the side wall of the hoistway pit 2 are constructed of buildings, and the floor of the lowermost hall 4 protrudes closer to the hoistway pit 2 than the side wall of the hoistway pit 2. The opposite surface of the floor 4 protruding from the lower floor hall 4 to the hoistway pit 2 is connected to the side wall of the lower floor hall 4 side of the hoistway pit 2 through an inclined portion of the building. .

  The side wall on the landing 4 side of the lowermost floor of the hoistway pit 2 has the same width as the entrance / exit of the lowermost hall 4 and extends from the boundary with the inclined part of the building to the hoistway pit 2 side. A top plate 7a that is horizontally disposed, a bottom plate 7b that is disposed near the floor surface of the hoistway pit 2 below the top plate 7a, and that has the same horizontal projection surface as the top plate 7a, both sides of the top plate 7a and the bottom plate A storage 7 including a pair of side plates 7c whose upper and lower ends are fixed to both sides of 7b is provided. The space partitioned by the inner surface of the top plate 7a, bottom plate 7b, and both side plates 7c of the storage 7 is a partition plate 7d vertically arranged at the center between both side plates 7c, and the center of one side plate 7c and the partition plate 7d. The top plate 7a, the bottom plate 7b, the other side plate 7c, the first storage portion 7f partitioned by the partition plate 7d, the top plate 7a, the shelf plate 7e, the one side plate 7c, the partition The second storage portion 7g partitioned by the plate 7d, the shelf 7e, the bottom plate 7b, the one side plate 7c, and the third storage portion 7h partitioned by the partition plate 7d are further divided into the first storage portion 7f, The second storage portion 7g and the third storage portion 7h have an opening on the hoistway pit 2 side. The first storage portion 7f stores a stepladder 8, and a belt 10 is hung on a pair of hooks 9 provided at the center of the opposing surfaces of the other side plate 7c and the partition plate 7d. The stepladder 8 is prevented from falling to the hoistway pit 2 side from 7f. The second storage portion 7g stores a manual jack 11 and the third storage portion 7h stores a pair of car weight adjusting balance weights 12.

  The upper end of the toe guard fixing portion 13a having the same width as the entrance / exit of the lowermost hall 4 is fixed on the surface facing the hoistway pit 2 of the sill 5 of the lowermost hall, and is stored vertically downward. It extends to the top plate 7a of the storage 7. At the lower end of the toe guard fixing portion 13a, the free end is vertically downward so as to hide the first storage portion 7f, the second storage portion 7g, and the third storage portion 7h of the storage 7 from the hoistway pit 2 side. The toe guard is movable so as to extend from a position having a function as a lid of the storage 7 to a position having a function as a work table, which is horizontally arranged so that the free end extends to the hoistway pit 2 side. The portion 13b is pivoted through a plurality of hinges 13c. The toe guard movable portion 13b has side walls that are formed by bending both side portions to face the storage 7 side in a state where the free end extends vertically downward, and the toe guard movable portion 13b Both ends of the pair of support arms 14 are rotated via pins on the outer surface of both side walls and the inner surfaces of both side plates 7c of the storage 7 at a height position between the bottom plate 7b and the shelf 7e of the storage 7. It is attached as possible.

  One end of the support arm 14 is pivotally attached to the inner surface of the side plate 7c of the storage 7 via a pin 14a, and one end of the support arm 14 is connected to the outer surface of the side wall of the toe guard movable portion 13b via a pin 14c. And a second support plate 14d that is pivotably attached, a free end of the first support plate 14b that is pivotally connected by a pin 14e, and a free end of the second support plate 14d. The first support plate 14b and the second support plate 14d are configured by a stopper 14f that controls the maintenance and release of the state in which the first support plate 14b and the second support plate 14d are arranged in a straight line. In the state where the support arm 14 is arranged so that the free end of the toe guard movable portion 13b extends vertically downward, the connecting portion of the first support plate 14b and the second support plate 14d is formed on the inner surface of the storage case 7. Folded to fit in the storage 7 so as to be positioned above one end of the attached first support plate 14b and one end of the second support plate 14d attached to the outer surface of the side wall of the toe guard movable portion 13b. In a state where the free end of the toe guard movable part 13b is horizontally arranged so as to extend toward the hoistway pit 2 side, one end of the first support plate 14b attached to the inner surface of the storage 7 and the side wall of the toe guard movable part 13b The second support plate 14d attached to the outer surface of the second support plate 14d is arranged in a straight line with both ends as one end.

  Further, a maintenance operation changeover switch 15 having an operation pin 15a protruding toward the hoistway pit 2 and back and forth in the protruding direction is attached to the lower surface of the top plate 7a of the storage 7. When the free end of the toe guard movable portion 13b extends vertically downward, the operation pin 15a of the maintenance operation changeover switch 15 is in contact with the inner surface of the toe guard movable portion 13b, and the toe guard movable portion 13b is When rotation starts in a direction horizontally arranged so as to extend toward the hoistway pit 2, the contact with the inner surface of the toe guard movable portion 13b is released.

  The maintenance operation changeover switch 15 has a function of switching the operation mode of the elevator. When the operation pin 15a is released from a state where it is in contact with the inner surface of the toe guard movable portion 13b, the operation mode of the elevator is changed from the normal operation mode to the maintenance operation. A signal is sent to the control panel to switch to the mode or to temporarily stop the elevator.

  The toe guard device configured as described above includes a stepladder 8, a manual jack 11, and a device used when maintaining a device such as a control panel installed in the hoistway pit 2 and an elevator car 3 from below during normal operation of the elevator. The balance weight 12 for adjusting the center of gravity of the car is stored in the first storage portion 7f, the second storage portion 7g, and the third storage portion 7h, respectively, and the toe guard movable portion 13b is the first storage portion of the storage case 7. 7f, the second storage portion 7g, and the third storage portion 7h are arranged so that the free ends extend vertically downward so as to conceal from the hoistway pit 2 side, and function as a conventional toe guard.

  When maintaining the elevator car 3 from the lower side of the equipment such as a control panel installed in the hoistway pit 2 or from the lower side of the hoistway pit 2, the toe guard movable portion 13b is rotated to the hoistway pit 2 side to move up and down. The stepladder 8, the manual jack 11, and the balance weight 12 for adjusting the center of gravity of the car are taken out from the openings of the first storage portion 7f, the second storage portion 7g, and the third storage portion 7h as needed from the road pit 2 side. To use. In addition, when using the stepladder 8, it is necessary to remove the belt 10 hung on the hook 9 before taking out. At this time, the operation pin 15a of the maintenance operation changeover switch 15 is released from contact with the inner surface of the toe guard movable portion 13b, and the operation mode of the elevator is switched from the normal operation mode to the maintenance operation mode. Stop. Further, when the free end of the toe guard movable portion 13b is rotated to a state where it is horizontally disposed so as to extend toward the hoistway pit 2, the support arm 14 is attached to the inner surface of the storage 7 by the first support plate 14b. One end and the other end of the second support plate 14d attached to the outer surface of the side wall of the toe guard movable portion 13b are arranged on both sides, and the stopper 14f maintains this state.

  After the maintenance work is completed, the stepladder 8, the manual jack 11, and the balance weight 12 for adjusting the center of gravity of the car that have been taken out as necessary are replaced with the first storage portion 7f, the second storage portion 7g, and the third storage portion 7h, respectively. The belt 10 is hung on the hook 9 so that the stepladder 8 does not fall to the hoistway pit 2 side. Thereafter, the state where the first support plate 14b and the second support plate 14d maintained by the stopper 14f of the support arm 14 are arranged in a straight line is released, and the toe guard movable portion 13b is set so that the free end faces vertically downward. It is arrange | positioned so that it may extend, and it is rotated to the position which has a function as a cover of the storage 7. At this time, since the inner surface of the toe guard movable portion 13b is brought into contact with the operating pin 15a of the maintenance operation changeover switch 15, the operation mode of the elevator is switched to the normal operation mode, and the elevator returns to the normal operation.

  According to the first embodiment described above, during the normal operation of the elevator, the stepladder 8, the manual jack 11, and the balance weight 12 for adjusting the center of gravity of the car are respectively the first storage portion 7f and the second storage portion 7g. The toe guard movable part 13b is concealed from the hoistway pit 2 side from the hoistway pit 2 side. The toe guard movable part 13b is stored in the third storage part 7h. Thus, since the free end is arranged so as to extend vertically downward, even when the hoistway pit 2 is visible from the outside of the hoistway 1 such as an elevator for observation, there is no problem that the hoistway pit 2 does not look good. . Moreover, since the storage 7 is provided in the space between the side wall on the landing 4 side on the lowest floor of the conventional hoistway pit 2 and the toe guard on the lowermost floor, the storage 7 is placed in another place on the hoistway pit 2. There is no need to provide it separately, and the space of the hoistway pit 2 can be used effectively.

  Further, when maintaining the elevator car 3 from below from the hoistway pit 2 such as a control panel installed in the hoistway pit 2, the toe guard movable portion 13b is rotated to the hoistway pit 2 side. Since the operation pin 15a of the maintenance operation switch 15 is released from contact with the inner surface of the toe guard movable portion 13b, the elevator operation mode is switched from the normal operation mode to the maintenance operation mode, or the elevator is temporarily stopped. Is not operated in the normal operation mode, so there is no concern that the lower part of the elevator car 3 contacts the maintenance worker or the toe guard movable part 13b rotated to the hoistway pit 2 side. Maintenance work can be performed safely.

  Note that the storage 7 for storing maintenance tools such as the stepladder 8, the manual jack 11, and the balance weight 12 for adjusting the center of gravity of the car is not always necessary. For example, the storage 7 on the lower floor of the hoistway pit 2 A storage part for storing maintenance tools, such as attaching the hook 9 and belt 10 directly, is provided on the side wall, and the toe guard movable part 13b rotates from the position where the storage part is hidden from the hoistway pit 2 side to the hoistway pit 2 side. If it is arranged to be movable, the same effect as in the first embodiment can be obtained. The maintenance operation changeover switch 15 follows the rotation of the toe guard movable portion 13b toward the hoistway pit 2 and the elevator operation mode is switched from the normal operation mode to the maintenance operation mode, or the elevator is temporarily stopped. There is no designation of the installation location. For example, when the free end of the toe guard movable portion 13b is arranged so as to extend vertically downward, the operating pin 15a abuts on the first support plate 14b of the support arm 14, and the toe guard movable portion 13b is connected to the hoistway. When the rotation is started in the direction horizontally arranged so as to extend to the pit 2 side, the maintenance operation changeover switch 15 is set in the storage 7 so that the contact of the support arm 14 with the first support plate 14b is released. You may attach to the side plate 7c.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view in the vicinity of an elevator hoistway pit including an elevator toe guard device according to the present invention. It is the A section enlarged view of Drawing 1, and is a longitudinal section showing the toe guard device of the elevator of this invention. It is a longitudinal section showing the state where the toe guard device of the elevator of this invention is arranged horizontally. It is a perspective view which shows the state by which the toe guard apparatus of the elevator of this invention is arrange | positioned horizontally.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Hoistway pit 3 Elevator car 4 Lower floor landing 5 Lower floor landing threshold 6 Lower floor landing door 7 Storage 7a Top plate 7b Bottom plate 7c Side plate 7d Partition plate 7e Shelf plate 7f 1st storage part 7g 2nd storage part 7h 3rd storage part 8 Stepladder 9 Hook 10 Belt 11 Manual jack 12 Balance weight 13a toe guard fixing part 13b Toe guard movable part 13c Hinge 14 Support arm 14a Pin 14b First One support plate 14c Pin 14d Second support plate 14e Pin 14f Stopper 15 Maintenance operation changeover switch 15a Actuation pin

Claims (6)

The threshold of the floor on the bottom floor,
A side wall on the landing side of the lowermost floor of the hoistway pit,
A storage section for storing maintenance tools, which is provided on a side wall on the landing side of the lowermost floor;
A toe guard fixed to the floor sill of the lowermost floor so as to conceal the storage part from the hoistway pit side;
An elevator toe guard device comprising: Toe Guard
Toe guard fixing part fixed to the threshold of the lowest floor landing,
A toe guard movable part pivoted on the toe guard fixing part and rotatable to the hoistway pit side from a position for concealing the storage part from the hoistway pit side;
The elevator toe guard device according to claim 1, further comprising:   The elevator toe guard apparatus according to claim 2, further comprising a support arm rotatably attached to the storage part and the toe guard movable part.   The elevator toe guard apparatus according to claim 3, wherein a stopper for controlling the maintenance and release of the state where the toe guard movable part is horizontally disposed is attached to the support arm.   Maintenance operation in which the elevator operating mode is switched to the maintenance operation mode or the elevator is temporarily stopped when the toe guard movable part rotates to the hoistway pit side from the position where the storage part is hidden from the hoistway pit side. The elevator toe guard device according to any one of claims 2 to 4, further comprising a changeover switch.   The toe guard apparatus for an elevator according to any one of claims 1 to 5, wherein the toe guard apparatus is installed in a prospecting elevator.

Images