JP2005145693A - Door device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door device of an elevator capable of preventing degradation of the design of the door of a car and being easily manufactured. <P>SOLUTION: A stopper 8 is penetrated through a through hole 7 disposed in a car sill 5. The stopper 8 can displace between a projecting position where the stopper projects from the car sill 5 to regulate an opening operation of the door 4 of the car and a release position that is positioned lower than the projecting position and releases the regulation. A connecting mechanism 32 for displacing the stopper 8 is disposed under the car sill 5. An abutting roller 30 is disposed on the wall surface of each landing floor in a shaft 1. When the car 2 reaches the landing floor, the connecting mechanism 32 is butted on the abutting roller 30. When the connecting mechanism 30 is butted on the abutting roller 30, the connecting mechanism 30 is displaced with respect to the car sill 5, and the stopper 8 is displaced to the release position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an elevator door device that opens and closes an elevator doorway.

  In a conventional elevator door device, a door for preventing door opening may be provided on the door of the car in order to prevent the door of the car from opening when the car is between the floors. A stopper that abuts the abutment plate and prevents movement of the car door in the opening direction is fixed to the hoistway wall between the floors. When the car is between the floors, the door of the car is brought into contact with the stopper to lock the car door.

  A wire rope for releasing the lock by displacing the abutment plate at the time of maintenance inspection or the like is stretched on the car door. The plate is displaced by the operation of the wire rope, and the lock of the car door is released (see, for example, Patent Document 1).

JP-A-4-292392

  As described above, in the conventional elevator door device, the wire rope is stretched around the car door, and in particular, in the case of the car door provided with the glass window, the wire rope or the like can be seen from the window. This will reduce the design of the door.

  An object of the present invention is to solve the above-described problems, and an object of the present invention is to provide an elevator door device that can prevent a decrease in design of a car door.

  The elevator door device according to the present invention includes a car sill provided on a floor of a car doorway, a car door provided above the car sill, a car door that opens and closes the car doorway, a protruding position protruding from the car sill, and a protruding position. It is possible to displace between the release position located below and restricts the opening operation of the car door by contact with the car door when in the protruding position, and releases the restriction when in the release position. And a stopper displacing means for displacing the stopper to the release position when the car is landing on the landing floor.

  In the elevator door device according to the present invention, the car sill is provided with a stopper that is displaced between the protruding position for restricting the opening operation of the car door and the release position for releasing the restriction. Mounting of the mechanism for restricting the opening operation and the mechanism for releasing this restriction on the door of the car can be avoided, and deterioration in design of the car door can be prevented.

Embodiment 1 FIG.
1 is a front view showing an elevator door device according to Embodiment 1 of the present invention. In the figure, a car doorway 3 is provided in a car 2 that is raised and lowered in a hoistway 1. A door rail (not shown) extending in the horizontal direction is fixed to the upper portion of the car 2. A pair of car doors 4 for opening and closing the car doorway 3 are suspended from the guide rails. The pair of car doors 4 opens and closes the car doorway 3 by moving in opposite directions in conjunction with each other. Each car door 5 is provided with a window portion 35 made of transparent glass. A car sill 5 extending in the horizontal direction is provided on the floor of the car doorway 3. The car sill 5 is provided with a sill groove 6 into which the lower part of the car door 4 is inserted.

  The cage sill 5 is provided with a through hole 7 extending in the vertical direction. The through-hole 7 is arranged so that it can be seen on the outer side in the front door direction of the car door 4 when the car door 4 is viewed from above with the door closed. In other words, the through-hole 7 is disposed so as to be located on the outside in the frontage direction outside the area of the car door 4 when the door 4 of the car in the closed state is vertically projected onto the car sill 5.

  A rod-like stopper 8 is inserted into the through hole 7. The stopper 8 is displaceable between a protruding position protruding from the car sill 5 and a release position positioned below the protruding position. When the stopper 8 is in the protruding position, the upper portion of the stopper 8 protrudes from the car sill 5, and the movement of the car door 4 in the door opening direction is restricted by the contact of the car door 4 with the upper portion of the stopper 8. The When the stopper 8 is in the release position, the upper portion of the stopper 8 is positioned below the upper surface of the car sill 5 and the restriction on the opening operation of the car door 4 is released. Further, the stopper 8 is displaced between the protruding position and the release position by the stopper displacing means 9.

  FIG. 2 is a front view showing the stopper displacing means 9 of FIG. 1, and FIG. 3 is a partially broken plan sectional view showing the stopper displacing means 9 of FIG. FIG. 4 is an exploded perspective view showing a part of the stopper displacing means 9 of FIG. In the figure, a support member 10 is fixed to the lower surface of the car sill 5 with bolts. A plate-like link member 11 bent in a U-shape is supported on the support member 10 via a support pin 12 so as to be rotatable. The link member 11 is disposed below the car sill 5. The support pin 12 is provided at a bent portion of the link member 11. A lower end portion of the stopper 8 is rotatably connected to one end portion (end portion on the inner side in the frontage direction) of the link member 11 via a pin 13. A connection adjusting portion 14 that extends outward in the frontage direction is connected to the other end portion of the link member 11 (outer end in the frontage direction) via a pin 15.

  A slide bar 16 that extends horizontally outward in the frontage direction is also fixed to the lower surface of the car sill 5 with bolts. A guide member (cam member) 17 slidable along the slide bar 16 is rotatably connected to a distal end portion (end portion on the outer side in the frontage direction) of the connection adjusting portion 14 via a pin 18.

  The connection adjusting unit 14 includes a first connection member 19 connected to the link member 11, a second connection member 20 connected to the guide member 17, and the first connection member 19 and the second connection member 20. It has a rod-shaped adjusting rod 21 which is connected to each other.

  At one end and the other end of the adjusting rod 21, screw portions 21a and 21b into which the first and second connecting members 19 and 20 are screwed are provided, respectively. In addition, an engaging surface 21c on which a tool such as a spanner can be engaged is provided at an intermediate portion of the adjusting rod 21. The length of the connection adjusting portion 14 can be adjusted by rotating the adjusting rod 21 using the engaging surface 21c and moving the first and second connecting members 19 and 20 in a direction toward or away from each other. It has become.

  The guide member 17 includes an attachment portion 22 to which the second connection member 20 is coupled, a vertical portion 23 that is provided perpendicular to the attachment portion 22 and extends in the up-down direction, and an opening from the upper and lower ends of the vertical portion 23. And an inclined portion 24 extending inclining outward in the direction.

  5 is a perspective view showing the guide member 17 attached to the slide bar 16 in FIG. 2, and FIG. 6 is an enlarged perspective view showing the guide member 17 in FIG. 5, as shown in FIGS. In addition, a cylindrical guide member 25 through which the slide bar 16 is slidably passed is fixed to the attachment portion 22. As a result, the guide member 17 can slide along the slide bar 16.

  The link member 11 is rotatable about the support pin 12 by the guide member 17 being slid along the slide bar 16. The stopper 8 can be displaced by the rotation of the link member 11, and is displaced toward the protruding position when the guide member 17 is slid in the direction approaching the car 2, and the direction in which the guide member 17 is separated from the car 2. When it is slid, it is displaced toward the release position.

  A magnet mounting member 26 is fixed to the lower portion of the car 2 with bolts. A spring 27 that is an urging portion is connected between the magnet mounting member 26 and the link member 11. The spring 27 biases the link member 11 in the direction in which the guide member 17 approaches the car 2. That is, the spring 27 urges the link member 11 in the direction in which the stopper 8 is displaced to the protruding position. The magnet attachment member 26 is attached with an electromagnetic magnet 28 for forcibly displacing the link member 11 in a direction in which the stopper 8 is displaced to the release position. The electromagnetic magnet 28 is disposed below the link member 11. The electromagnetic magnet 28 is energized by operating an operation switch (not shown).

  A magnet contact plate 29, which is a magnetic body, is fixed to a portion of the link member 11 that faces the electromagnetic magnet 28. The magnet contact plate 29 is displaced in a direction approaching the electromagnetic magnet 28 by energization of the electromagnetic magnet 28. Thereby, the link member 11 is rotated and the stopper 8 is displaced to the release position.

  On the wall surface of each landing floor of the hoistway 1, a contact roller 30, which is a contact member that comes into contact with the guide member 17 when the car 2 is landed on the landing floor, is provided via a roller support member 31. It is provided rotatably. The guide member 17 is slid on the slide bar 16 toward the outer side in the frontage direction while being in contact with the contact roller 26 by the movement of the car 2 when it is landed. That is, when the car 2 is landed on the landing floor, the abutment roller 30 displaces the guide member 17 to the outer side in the frontage direction against the urging force of the spring 27 while abutting against the guide member 17. The stopper 8 is displaced to the release position via the.

  The connection mechanism 32 includes the link member 11, the connection adjustment unit 14, and the guide member 17. The stopper displacing means 9 includes a coupling mechanism 32, a spring 27, an electromagnetic magnet 28, and a contact roller 31.

Next, the operation will be described.
When the car 2 is between the landing floors, the guide member 17 is close to the car 2 by the bias of the spring 11. In this state, the stopper 8 is displaced to the protruding position, and the movement of the car door 4 in the door opening direction is restricted by the stopper 8.

  When the car 2 is landed on the landing floor, first, the inclined portion 24 is brought into contact with the contact roller 30. Thereafter, the guide member 17 is moved along the inclination of the inclined portion 24 while being in contact with the contact roller 30. Thus, the guide member 17 is slid on the slide bar 16 in a direction away from the car 2 against the bias of the spring 27. At this time, the link member 11 is rotated around the support pin 12 and the stopper 8 is displaced to the release position. Thereafter, when the vertical portion 23 is in contact with the contact roller 30, the car 2 is landed on the landing floor (FIG. 2).

  When the car 2 is landed on the landing floor, the stopper 8 is held at the release position by the contact of the vertical portion 23 with the contact roller 30. As a result, the car doorway 3 can be opened and closed.

  Thereafter, when the car 2 is moved from the landing position, the stopper 8 is returned to the protruding position by the reverse operation.

  In such an elevator door device, the car sill 5 is provided with a stopper 8 that is displaced between a protruding position for restricting the opening operation of the car door 4 and a release position for releasing the restriction. The mechanism for restricting the opening operation of the car door 4 and the mechanism for releasing the restriction can be avoided from being mounted on the car door 4, thereby preventing the design of the car door 4 from being deteriorated. be able to. That is, for example, even when the car door 4 is provided with a window, the stopper 8 and the stopper displacing means 9 are not exposed through the window, and the deterioration of the design of the car door 4 can be prevented. it can. Moreover, since the structure of the whole apparatus becomes simple, manufacture can be made easy.

  The stopper 8 is connected to the connecting mechanism 32, and the stopper 8 is displaced to the release position by the contact of the connecting mechanism 32 with the contact roller 30 provided on each landing floor. Therefore, the stopper 8 can be reliably displaced to the release position only when the car 2 is landed on the landing floor.

  Further, since the coupling mechanism 32 has the guide member 17 guided by the contact roller 30, and the contact member is a rotatable contact roller 30, the displacement of the connection mechanism 32 can be made smooth. it can.

  In addition, since the car 2 is equipped with an electromagnetic magnet 28 that forcibly displaces the coupling mechanism 32 and displaces the stopper 8 to the release position, the car 2 is provided at each landing in special cases such as during maintenance and inspection. Even when it is between the floors, it is possible to open the car door 4 simply by energizing the electromagnetic magnet 28, and without the trouble of removing the stopper 8 from the car sill 5, The restriction of the opening operation can be easily released.

  In the above example, the guide member 17 is connected to the connection adjustment unit 14 and the contact roller 30 is provided on the wall surface of the hoistway 1. However, the contact roller 30 is connected to the connection adjustment unit 14 and guided. The member 17 may be provided on the wall surface of the hoistway 1. That is, the application portions of the contact roller 30 and the guide member 17 may be interchanged.

Embodiment 2. FIG.
7 is a main part front view showing an elevator door device according to Embodiment 2 of the present invention, and FIG. 8 is a main part plan sectional view showing the door device of FIG. In the figure, a landing sill 42 (FIG. 8) extending in the horizontal direction is provided on the floor of the landing entrance 41 of each landing floor. A pair of landing doors 43 (FIG. 8) for opening and closing the landing doorway 41 are arranged above the landing threshold 42. In a state where the car 2 is landed on the landing floor, the car door 4 is engaged with the landing door 43 by an engagement device (not shown), and can reciprocate together with the landing door 43.

  The cage sill 5 is provided with a through hole 7 extending in the vertical direction. A stopper 8 is inserted into the through hole 7. The stopper 8 can be displaced between a protruding position protruding from the car sill 5 and a release position below the protruding position.

  A link support member 45 is fixed to the lower surface of the car sill 5. On the link support member 45, a link member 46 bent in a reverse shape is rotatably supported via a support pin 47. The link member 46 has an extending portion 48 that extends downward from the bent portion.

  A lower end portion of the stopper 8 is rotatably connected to one end portion (end portion on the inner side in the frontage direction) of the link member 46 via a pin 49. A contact roller 50 is rotatably connected to the other end portion (end portion on the outer side in the frontage direction) of the link member 46 via a pin 51. The contact roller 50 is disposed at a higher position than the car sill 5.

  A magnet mounting member 52 is fixed to the lower portion of the car 2. The magnet attachment member 52 is disposed below the link member 46. A spring 53 as an urging portion is connected between the extension portion 48 and the magnet attachment member 52. The spring 53 biases the link member 46 in the direction in which the stopper 8 is displaced to the protruding position.

  An electromagnetic magnet 28 is fixed to the magnet mounting member 52. A magnet contact plate 54 that is a magnetic body is fixed to a portion of the link member 46 that faces the electromagnetic magnet 28. The magnet contact plate 54 is displaced in a direction approaching the electromagnetic magnet 28 by energization of the electromagnetic magnet 28. As a result, the link member 46 is forcibly rotated around the support pin 47 in the direction in which the stopper 8 is displaced to the release position.

  A guide member (cam member) 55 that is brought into contact with the contact roller 30 by the movement of the landing door 43 is fixed to the lower portion of the landing door 43 by a bolt. The guide member 55 has a horizontal portion 56 that extends horizontally outward in the frontage direction, and an inclined portion 57 that inclines downward from the outer end in the frontage direction of the horizontal portion 56.

  When the car door 4 and the landing door 43 are in the door-closed state, the contact roller 30 is disposed on the outer side in the frontage direction with respect to the guide member 55. When the landing door 43 is moved in the opening direction together with the car door 4, the contact roller 30 is brought into contact with the inclined portion 57 and pushed up along the inclination of the inclined portion 57. Thereby, the link member 46 is rotated against the bias of the spring 53, and the stopper 8 is displaced to the release position.

  FIG. 9 is a front view showing a state in which the stopper 8 of FIG. 7 is displaced to the release position. As shown in the figure, the through-hole 7 does not reach the position of the through-hole 7 until the stopper 8 is displaced to the release position by pushing up the contact roller 30 by the guide member 55. Thus, it is arrange | positioned only the predetermined distance (here about 50 mm) from the door 4 of the cage | basket | car in a door-closed state frontage direction outer side.

  The connecting mechanism 58 has a link member 46 and a contact roller 30. The stopper displacing means 59 includes a coupling mechanism 58, a spring 53, a guide member 55, and an electromagnetic magnet 28. Other configurations are the same as those in the first embodiment.

Next, the operation will be described.
When the car 2 is between the landing floors, the guide member 55 is close to the car 2 by the bias of the spring 53. In this state, the stopper 8 is displaced to the protruding position, and the movement of the car door 4 in the door opening direction is restricted by the stopper 8.

  When the car 2 is landed on the landing floor and the car door 4 and the landing door 43 are moved in the opening direction, the guide member 55 moved together with the landing door 43 is brought into contact with the contact roller 30. Thereafter, when the guide member 55 is further moved, the contact roller 30 is pushed up along the inclination of the inclined portion 57 while being in contact with the guide member 55. Thereby, the link member 46 is rotated, and the stopper 8 is displaced to the release position until the car door 4 reaches the position of the through hole 7.

  Thereafter, the car door 4 and the landing door 43 are further moved in the door opening direction, and the horizontal portion 56 is moved in the horizontal direction while being in contact with the contact roller 30. At this time, the height of the contact roller 30 is kept constant, and the stopper 8 is kept displaced to the release position.

  When the car door 4 and the landing door 43 are moved in the closing direction, the stopper 8 is returned to the protruding position by the reverse operation.

  In such an elevator door device, the stopper 8 is coupled to the coupling mechanism 58, and the guide member 55 is brought into contact with the coupling mechanism 58 and the stopper 8 is displaced to the release position by the opening operation of the landing door 43. Thus, the stopper 8 can be reliably displaced to the release position only when the car 2 is landed on the landing floor and the landing door 43 is reciprocated.

  Moreover, since the connection mechanism 58 has the contact roller 30 that is in contact with the guide member 55, the connection mechanism 58 can be displaced smoothly.

In each of the above embodiments, the stopper 8 has a rod shape, but may have a plate shape. Further, the stopper 8 may be inclined.
Further, the through hole 7 of the car sill 5 may be a slit or a depression.

It is a front view which shows the door apparatus of the elevator by Embodiment 1 of this invention. It is a front view which shows the stopper displacement means of FIG. FIG. 3 is a plan sectional view showing a stopper displacing means of FIG. 2. It is a disassembled perspective view which shows a part of stopper displacement means of FIG. It is a perspective view which shows the guide member attached to the slide bar of FIG. It is an expansion perspective view which shows the guide member of FIG. It is a principal part front view which shows the door apparatus of the elevator by Embodiment 2 of this invention. It is a plane sectional view showing the door device of FIG. It is a front view which shows the state by which the stopper of FIG. 7 was displaced to the release position.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Hoistway, 2 cages, 3 cage entrances, 4 cage doors, 5 cage sills, 8 stoppers, 9, 59 Stopper displacement means, 17, 55 guide members, 27, 53 springs (biasing portions), 28 electromagnetic magnets, 30, 50 Contact roller (contact member), 32, 58 coupling mechanism, 43 landing door.

Claims (6)

A basin on the floor of the basin entrance,
A car door provided above the car sill and opening and closing the car doorway;
It is displaceable between a projecting position projecting from the car sill and a release position located below the projecting position, and when in the projecting position, the car door is brought into contact with the car door. A stopper for restricting the opening operation and releasing the restriction when the car is at the release position; and stopper displacement means for displacing the stopper to the release position when the car is landing on the landing floor. An elevator door device characterized by the above. The stopper displacing means is connected to the stopper and is displaceable with respect to the car sill,
A biasing portion that biases the coupling mechanism in a direction in which the stopper is displaced to the protruding position;
When a car that is provided in a hoistway and is raised and lowered in the hoistway is landed on a landing floor, the connecting mechanism is displaced against the urging force of the urging portion while abutting against the linking mechanism. The elevator door device according to claim 1, further comprising: an abutting member that displaces the stopper to the release position.   One of the contact member and the coupling mechanism has a guide member extending in the vertical direction, and the other of the contact member and the coupling mechanism portion is a contact roller that contacts the guide member. The elevator door device according to claim 2, wherein the elevator door device is provided. The stopper displacing means is connected to the stopper and is displaceable with respect to the car sill,
A biasing portion that biases the coupling mechanism in a direction in which the stopper is displaced to the protruding position;
It is mounted on a landing door that can reciprocate together with the car door when the car is landed on the landing floor, and it moves in the door opening direction of the landing door while contacting the connection mechanism. The elevator door device according to claim 1, further comprising: a guide member that displaces the coupling mechanism against the urging force of the urging unit and displaces the stopper to the release position.   The elevator door device according to claim 4, wherein the coupling mechanism includes a contact roller that contacts the guide member.   6. The stopper displacement means according to claim 1, further comprising an electromagnetic magnet fixed to the car sill and forcibly displacing the coupling mechanism in a direction to displace the stopper to the release position. The elevator door device described in 1.

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