JP2007015806A - Access port device for elevator car floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an access port device for an elevator car floor capable of preventing drop into a pit, conducting inspection in the pit safely, and preventing erroneous operation of an elevator. <P>SOLUTION: This access port device for the elevator car floor is provided with an access port 4 communicating with the shaft pit 6, an access port door 8 blocking the access port openably and closably, and a ladder 11 for inspection provided in a lower part of the access port. The access port door 8 is constituted to bend its central part and is rotatably attached to the car floor using a sill 7 side end part of the car floor as a fulcrum 12 of rotation. An inspection mark 9 is provided on a rear surface on a reverse rotation fulcrum side. When the elevator is normally operated, the access port is blocked. When conducting inspection in the pit, a reverse rotation fulcrum side end part of the access port door is upward lifted and is turned over while rotating it further to engage the reverse rotation fulcrum side end part with the inside of a sill channel of a sill of the car floor, turn over the inspection mark provided on a reverse rotation fulcrum side rear surface of the access port door, and display it on a front side of the access port. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator car floor inspection port device that can safely enter and exit from a floor of an elevator car into a pit.

Conventional elevator car floor inspection port devices are configured as shown in FIGS. 11 and 12, for example (see, for example, Patent Document 1).
In the figure, the inspection port door 1 is attached to the car floor 3 of the elevator car 2, and the inspection port 4 formed on the car floor 3 after the inspection port door 1 is opened is located below the pit 6. An inspection ladder 5 is fixed for access. 7 is the threshold of the car 2.
In the conventional elevator car floor inspection opening device constructed as described above, the inspection opening door 1 can be opened and the inspection ladder 4 can be used to go down to the pit 6 for inspection. it can.

Japanese Utility Model Publication No. 1-134684

  In the conventional elevator car floor inspection port apparatus configured as described above, the inspection port door 1 can be opened and the inspection ladder 4 can be used to go down to the pit 6 for inspection using the inspection ladder 5. Since the door 1 is opened to the rear of the car floor 3, there is a possibility that the third person falls from the inspection port 4 when the third person enters the car 2 without knowing it. Moreover, even if the inspection door 1 is opened, there is a possibility that the elevator may be activated when the pit 6 is inspected because no measures are taken to prevent the elevator from being activated.

  The present invention has been made to solve the above-described problems, and is capable of safely preventing a third party from falling into the pit and checking the pit, and prevents an elevator from malfunctioning. A floor inspection device is provided.

  In the elevator car floor inspection port apparatus according to the present invention, provided in the elevator car floor, the inspection port leading to the hoistway pit, the inspection port door for closing the inspection port so that it can be opened and closed, and the lower part of the inspection port The inspection door is configured to be foldable at the center, and is rotatably attached to the car floor with the sill side end of the car floor as a rotation fulcrum. An inspection sign is provided on the rear side of the side, the inspection port is closed during normal operation of the elevator, and when checking in the pit, the end of the inspection port door on the counter-rotating fulcrum side is lifted upward and turned over while rotating further By turning the counter rotation fulcrum side end into the sill groove of the car floor sill, the inspection mark provided on the reverse rotation fulcrum side back side of the inspection port door is turned over and displayed on the front side of the inspection port It is.

  In addition, the inspection ladder is a slide type, which is folded during normal operation of the elevator and extended during inspection in the pit.

  In addition, a safety switch for starting prevention that prevents the operation of the elevator in conjunction with the open state of the inspection port is enabled during the inspection operation in the pit, enabling the operation of the elevator in conjunction with the blockage state of the inspection port during normal operation of the elevator. Further provided.

  According to this invention, the inspection door is configured to be bent at the center, and is rotatably attached to the car floor with the sill side end of the car floor as a rotation fulcrum. When checking in the pit, lift the anti-rotation fulcrum side end of the inspection door upward and turn it over while rotating to engage the anti-rotation fulcrum side end in the sill groove of the car floor sill. By aligning, the inspection sign provided on the reverse side of the inspection port door on the counter-rotating fulcrum side is turned over and displayed on the front side of the inspection port, so that the inspection port can be hidden from the front and You can call attention and prevent falling. If the inspection door is opened, the elevator safety circuit operates to prevent the elevator from being activated, so that it is possible to enter the pit safely and easily.

Embodiment 1 FIG.
FIG. 1 is a side view showing a state during normal operation of an elevator car floor inspection port apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a view in a pit of the elevator car floor inspection port apparatus according to Embodiment 1 of the present invention. FIG. 3 is a side view of the main part showing the state of the inspection port door during operation, FIG. 4 is a side view of the main part showing the state of the inspection port door during inspection, and FIG. The main part perspective view which shows the state at the time of the inspection of a door, FIG. 6 is a front view of the sliding inspection ladder seen from the B direction of FIG. 1, FIG. 7 operated the sliding inspection ladder of FIG. 6 below. FIG. 8 is a front view showing a state in which the sliding inspection ladder is extended, FIG. 9 is a perspective view showing a safety switch for preventing start-up at the time of inspection in the pit, and FIG. 10 is at normal operation. It is a perspective view which shows the safety switch for starting prevention.

  In the figure, an inspection door 8 according to the present invention is configured such that a central portion thereof is coupled by a hinge 8a so that it can be bent, and is attached to the car floor 3 so that the end of the car floor 3 on the side of the sill 7 is a rotation fulcrum 12. ing. The inspection port door 8 is attached so as to close the inspection port 4 of the car floor 3 of the elevator car 2 during normal operation of the elevator. At the time of inspection in the pit, as shown in FIG. 3, the rear end of the car floor 3 (the end on the counter-rotating fulcrum side) is lifted upward, and further turned over while being rotated by the rotating fulcrum 12 and the hinge 8a. As shown in FIG. 4, the counter-rotating fulcrum side end engages with the sill groove of the sill 7 and is locked. Further, an inspection mark 9 in which characters such as “working” are displayed in red is attached to the lower surface of the inspection port door 8 around the hinge 8a on the counter-rotating fulcrum side, as shown in FIG. At the time of inspection in the pit, the inspection sign 9 is turned upside down and is positioned obliquely in front of the car floor 3, and is displayed so that a third party can be prevented from entering the car 2 without knowing it. Further, when the safety switch body 10 for preventing the elevator from starting is fixed to the car floor 3 and the inspection port 4 is closed by the inspection port door 8 during normal operation as shown in FIG. As shown in FIG. 9, when the start prevention switch 10a is moved downward to enable operation of the elevator and the inspection port 4 is opened at the time of inspection in the pit, as shown in FIG. The start prevention switch 10a is moved upward to block the operation of the elevator. In addition, a sliding inspection ladder 11 is installed below the inspection port 4 formed in the car floor 3 so that the inspection port door 8 can be opened to get down to the pit 6 during inspection in the pit. When the inspection port 4 is closed by the inspection port door 8 during normal operation, the sliding inspection ladder 11 is in a folded state as shown in FIG. And, as shown in FIG. 2, when the inspection port 4 is opened at the time of inspection in the pit, as shown in FIG. 7, first, the sliding inspection ladder 11 is rotated, and further, as shown in FIG. An extension operation is performed to get down to the pit 6.

  With the above structure, during normal operation, the inspection port door 8 closes the inspection port 4 of the car floor 3 of the elevator car 2 as shown in FIG. At the time of inspection in the pit, as shown in FIG. 3, the rear end (the counter rotation fulcrum side end) of the car floor 3 is lifted upward, and further turned upside down while being rotated by the rotation fulcrum 12 and the hinge 8a. As shown in FIG. 4, the end portion on the counter-rotating fulcrum side is locked by engaging in the sill groove of the sill 7. As a result, as shown in FIG. 5, the inspection sign 9 in which characters such as “working” are displayed in red is turned upside down and is positioned diagonally on the car floor 3, and the car is not known by a third party. 2 can be prevented from entering, and a third party will not fall into the pit. At this time, the elevator start-up safety switch 10a operates to block the operation of the elevator. Further, as shown in FIG. 8, the sliding inspection ladder 11 below the inspection port 4 formed in the car floor 3 can be extended to easily get down to the pit 6.

  According to this invention, when the inspection door is opened, the safety circuit of the elevator is operated and the elevator is not started. Therefore, it is possible to enter the pit safely and easily. In addition, since the inspection port can be hidden from the front side by opening the inspection port door on the front side, it is possible to call a third party's attention during the inspection operation, and to prevent falling.

It is a side view which shows the state at the time of the normal operation of the inspection port apparatus of the elevator car floor in Embodiment 1 of this invention. It is a side view which shows the state at the time of the inspection in the pit of the inspection port apparatus of the elevator car floor in Embodiment 1 of this invention. It is a principal part side view which shows the state in the middle of operation | movement of an inspection port door. It is a principal part side view which shows the state at the time of the inspection of an inspection port door. It is a principal part perspective view which shows the state at the time of the inspection of an inspection port door. FIG. 2 is a front view of a sliding inspection ladder as seen from a direction B in FIG. 1. It is a front view which shows the state which operated the slide type inspection ladder of FIG. 6 below. It is a front view which shows the state which carried out the extending | stretching operation | movement of the slide type inspection ladder. It is a perspective view which shows the safety switch for starting prevention at the time of inspection in a pit. It is a perspective view which shows the safety switch for starting prevention at the time of normal driving | operation. It is a side view which shows the state at the time of the normal driving | operation of the conventional elevator car floor inspection port apparatus. It is a side view which shows the state at the time of the inspection in the pit of the inspection port apparatus of the conventional elevator car floor.

Explanation of symbols

1 Inspection door (conventional)
2 Elevator car 3 Car floor 4 Inspection port 5 Inspection ladder (conventional)
6 Pit 7 Sill 8 Inspection port door 8a Hinge 9 Inspection sign 10 Safety switch body for starting prevention 10a Safety switch for starting prevention 11 Sliding ladder for inspection 12 Rotating fulcrum

Claims (3)

An elevator car floor provided on an elevator car floor and having an inspection port that leads to a hoistway pit, an inspection port door that closes the inspection port so that it can be opened and closed, and an inspection ladder provided below the inspection port. In the inspection port device of
The inspection door is configured to be foldable at the center, and is rotatably attached to the car floor with the sill side end of the car floor as a rotation fulcrum, and an inspection mark is provided on the back surface of the counter rotation fulcrum side. And the inspection port is closed during normal operation of the elevator,
At the time of inspection in the pit, lift the anti-rotation fulcrum side end of the inspection door upward, turn it over while rotating it, and engage the anti-rotation fulcrum side end with the sill groove of the sill of the car floor An inspection port device for an elevator car floor, wherein an inspection mark provided on the back surface of the inspection port door on the side opposite to the rotation center is turned over and displayed on the front side of the inspection port. An elevator car floor provided on an elevator car floor and having an inspection port that leads to a hoistway pit, an inspection port door that closes the inspection port so that it can be opened and closed, and an inspection ladder provided below the inspection port. In the inspection port device of
The inspection door is configured to be foldable at the center, and is rotatably attached to the car floor with the sill side end of the car floor as a rotation fulcrum, and an inspection mark is provided on the back surface of the counter rotation fulcrum side. And the inspection port is closed during normal operation of the elevator,
At the time of inspection in the pit, lift the anti-rotation fulcrum side end of the inspection door upward, turn it over while rotating it, and engage the anti-rotation fulcrum side end with the sill groove of the sill of the car floor , Turn over the inspection sign provided on the reverse side of the inspection port door on the counter-rotating fulcrum side, and display it on the front side of the inspection port.
2. The elevator car floor inspection port apparatus according to claim 1, wherein the inspection ladder is a slide type, and is folded during normal operation of the elevator and extended during inspection in the pit. An elevator car floor provided on an elevator car floor, having an inspection port leading to a hoistway pit, an inspection port door for closing the inspection port so as to be openable and closable, and an inspection ladder provided below the inspection port. In the inspection port device of
The inspection door is configured to be foldable at the center, and is rotatably attached to the car floor with the sill side end of the car floor as a rotation fulcrum, and an inspection mark is provided on the back surface of the counter rotation fulcrum side. And the inspection port is closed during normal operation of the elevator,
At the time of inspection in the pit, lift the anti-rotation fulcrum side end of the inspection door upward, turn it over while rotating it, and engage the anti-rotation fulcrum side end with the sill groove of the sill of the car floor , Turn over the inspection sign provided on the reverse side of the inspection port door on the counter-rotating fulcrum side, and display it on the front side of the inspection port.
During normal operation of the elevator, the elevator can be operated in conjunction with the closed state of the inspection port, and when inspecting in the pit, a safety switch for prevention of activation that blocks the operation of the elevator in conjunction with the open state of the inspection port is provided. An elevator car floor inspection opening device further provided.

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