JP2005194077A - Pit ladder of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pit ladder for an elevator allowing an operator to easily operate in a safe attitude and use and capable of adjusting the drawout position. <P>SOLUTION: The ladder for inspecting the elevator pit is equipped with a ladder body 1, an upper 7 and a lower rail 8 installed horizontally on the hall side pit inner wall 12, and an upper 4 and a lower shoe 4a installed on the pit ladder side, wherein the pit ladder 1 is made slidable horizontally by engaging the shoes 4 and 4a with the rails 7 and 8. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an elevator pit inspection trap.

  In the elevator pit inspection trap presented for the purpose of eliminating the problems of the conventional fixed pit turret, the first vertical member is erected freely below the landing sill on the lowest floor. And a second vertical member having an upper portion extending upward from the landing threshold and a plurality of horizontal members connecting the second vertical member and the first vertical member in parallel to the second vertical member. A pit inspection trap is pulled out to the center side of the pit through a member by rotation (see Patent Document 1).

Japanese Patent Laid-Open No. 7-41264

  In the elevator pit inspection trap disclosed by the above-mentioned Patent Document 1, when performing inspection in the pit, the lap is rotated into the pit with the first vertical member as a fulcrum, and thus the corresponding operation force is obtained. However, the arm has to be extended according to the width of the lap, and the operation posture becomes unstable and safety cannot be maintained. Also, since it is drawn out to a space with an opening degree close to 90 degrees with respect to the landing threshold, it is necessary to pay attention to the transfer operation at the time of work, and the lateral movement of the lap is not possible, so it corresponds to the structure in the pit. There is also a problem that the lateral position cannot be adjusted.

  The present invention has been made to solve the above-described problems, and can be installed without being restricted by the size of the hoistway, and can be easily and smoothly stored and pulled out. Adjusting the drawer position so that the posture when the operator hangs the hand on the handle and the foot on the platform is kept safe, and the trap can be installed in the place where it is most comfortable to work. An object is to provide a pit lap that can be used.

  The elevator pit lap according to claim 1 of the present invention includes a pit lap with a ladder structure, upper and lower rails installed horizontally on the pit inner road wall, and a vertical member of the pit lap that is provided on the vertical member of the pit lap. It is composed of a shoe member fitted and engaged with a pit lap and an upper and lower rail.

  According to the elevator pit trap according to claim 1 of the present invention, the pit lap, the upper and lower rails installed horizontally on the landing side pit inner wall, and the upper and lower rails and the pit lap are provided on the vertical member of the pit lap. It is equipped with an attached shoe member, and the pit lap is stored between the landing sill end and the hoistway side wall while the elevator is running, and is pulled out to an arbitrary work position in the pit as necessary. Therefore, installation in a safe space is possible without being restricted by the size of the hoistway, and there is no interference with other devices. In addition, the pit lap is pulled out and stored by the horizontal shifting operation close to the landing side, so that when the operator puts the hand on the lap and pulls it out, the boarding / exiting operation after the pull out is a position close to the lap. It is done with a reasonable posture. Note that the movement of the pit lap is easy and the standing state is firmly maintained.

Embodiment 1 FIG.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 and 2 are front views showing a pit turret of an elevator according to Embodiment 1 of the present invention. FIG. 1 shows a state when the turret is stored, and FIG. 2 shows a state when the turret is pulled out. FIG. 3 is a side view taken along line AA in FIG. 2, and FIG. 4 is a plan view when the trap is stored.

  In the figure, a pit trap 1 guides a vertical member 2 for an operator to handle, a horizontal member 3 for landing on legs that are installed at equal intervals between the vertical members 2, and a pit trap 1 described later. The upper shoe 4 and the lower shoe 40 are provided on the vertical member 2 so as to be engaged with the upper and lower rails. The locking member 5 is provided on the upper side of the vertical member 2 and the safety is provided on the opposite side of the lower member. A contact piece for pressing the switch is provided.

  Reference numeral 7 denotes an upper rail, which is horizontally installed at a predetermined position on the road wall in the landing side pit, and has a front end edge portion 7a engaged with an upper shoe 4 provided with a vertical member 2 of the pit trap 1. . Reference numeral 8 denotes a lower rail, which is laid on the inner bottom surface of the pit road wall, and has a front end edge portion 8a engaged with a lower shoe 4a provided at the lower end of the vertical member 2 of the pit trap 1.

  The upper rail 7 and the lower rail 8 are firmly fixed to the wall surface in parallel, support the pit turret 1 via the upper and lower shoes 4, 4 a, and guide the traversing easily when the drawer is retracted, The mounting positions of the upper and lower rails 7 and 8 are determined by the installation positions of the upper and lower shoes 4 and 4a in the vertical member 2 of the pit trap 1, and the upper and lower rails 7 and 8 and the upper and lower shoes 4 and 4a engaged with the upper and lower rails 4 and 4a. It is desirable that the support and guidance of the pit wrap 1 be taken into consideration so that strong support and smooth guidance are achieved. In the figure, 9 is a cage room, 10 is a landing sill, 11 is a counterweight, 12 is a hoistway wall, 13 is a landing door, 14 is a safety switch, and is opposed to the contact piece 6 on the pit trap 1 side. Provided at the position.

Embodiment 2. FIG.
FIG. 5 is a perspective view showing a fixing position 15 of a pit turret according to Embodiment 2 of the present invention, which is composed of a fixing bracket 16 and the locking bracket 5, and the lowest floor landing sill 10 during traveling of the cage room. When the pit trap 1 is stored in the space formed between the hoistway walls 12, the fixing bracket 16 is engaged with the locking bracket 5 provided on the pit trap 1 side so that the pit trap 1 does not move. The state in which the fixing device 15 shown in FIG. 5 is engaged corresponds to the state shown in FIG. 1 in which the pit trap 1 is fixed at the storage position.

  In consideration of the fact that the pit turret 1 moves from the storage position for some unforeseen reasons, it is provided on the side surface of the elevating wall 12 as a safety measure to prevent the possibility of colliding with the traveling cage room 9 or the open landing door 3. The safety switch 14 is provided, and when the pit trap 1 is stored in a proper position, the contact piece 6 and the safety switch 14 are turned on so that the car room 9 can run.

Embodiment 3 FIG.
6 (a) and 6 (b) are cross-sectional views of a pit trap positioning apparatus 17 according to Embodiment 3 of the present invention. In this embodiment, the fixed member urged by a spring 18 on the longitudinal member 2 side of the pit trap 1 is shown. When the ball 19 is provided and the pit turret 1 is pulled out to a predetermined portion and the fixed ball 19 faces the recessed portion 20 formed in the landing sill 10, the fixed ball 19 is pushed out and the recessed portion 20. Thus, the position of the pit trap 1 when used is fixed, and the transverse movement is prevented. In addition, when the use position is specified in a plurality of places, the concave portion 20 may be appropriately provided in accordance with the use position, and the configuration and installation location of the positioning device 17 are not specified.

Next, the operation will be described.
At the time of inspection, when an operator enters the pit section from the lowest floor hall, the cage room 9 is moved from the lower floor to the upper floor, and the door 13 of the lower floor hall is opened. Thereafter, the fixing device 15 attached to the landing hoistway wall 12 is released. Here, the operator grasps the vertical member 2 of the pit trap 1 from the landing, and moves it horizontally along the upper and lower rails 7 and 8 provided in the hoistway so as to draw it to the vicinity of the landing entrance. Thereafter, it is further moved to the work place, the position is determined, and the pit turret 1 is used to descend into the pit. The traversing pit lap 1 is easily guided by upper and lower rails 7 and 8 and upper and lower shoes 4 and 4a attached thereto, and the pit lap 1 is supported without falling down.

  Further, in order for the operator to work safely in the pit, when the contact piece 6 on the pit trap 1 side is detached from the safety switch 14, the safety switch 14 is turned off so that the cage room 9 cannot travel here. The power supply of the drive system is cut off to ensure the safety of workers. After the inspection is completed, the operator uses the pit wrap 1 to go up to the lowest floor landing, pushes the pit wrap 1 and moves it to the proper storage position, and fixes it using the fixing device 15. At this time, the safety switch 14 is activated, and the basket room 9 can run.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a pit lap of an elevator according to Embodiment 1 of the present invention, and is a state diagram when the lap is stored. It is the same front view as FIG. 1, and is the state figure which pulled out the trap. It is the side view seen along the AA line in FIG. It is a top view by Embodiment 1 of this invention. It is a perspective view which shows the pit trap fixing device by Embodiment 2 of this invention. (A) (b) is sectional drawing of the positioning apparatus of the pit trap by Embodiment 3 of this invention.

Explanation of symbols

1 Pit wrap, 2 Vertical member, 3 Horizontal member, 4 Upper shoe, 4a Lower shoe, 5 Locking bracket, 6 Contact piece, 7 Upper rail, 8 Lower rail, 14 Safety switch,
15 Fixing device, 17 Positioning device.

Claims (4)

In the elevator hoistway pit inspection turret, the pit lap main body, the upper and lower rails installed horizontally on the hallway pit inner wall, and the pit lap and upper and lower An elevator pit turret comprising an upper and lower shoe with a rail attached thereto and configured to slide the pit lap horizontally. 2. The pit lap of an elevator according to claim 1, wherein the pit lap is provided with a fixing device and is fixed at a storage position. The pit lap is equipped with a safety switch that confirms its storage, and is controlled so that the elevator is operated when the storage position is turned on and the elevator is disabled when the storage position is left. The pit lap of an elevator according to claim 1. 2. The pit lap of an elevator according to claim 1, wherein the pit lap is supported and guided by an upper and lower rail through an upper and lower shoe mounted on the vertical member, and is prevented from falling.

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