JP2012106835A - Elevator door guide device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door guide device, which can guide door opening/closing even without any sill groove on the sill upper surface of an elevator, and which is not removed to the inside of a hoistway by external force.SOLUTION: A plurality of sill holes 4 is formed on a sill 3 vertically to a position through which a door (riding-place door 1) passes, and a guide bar 5 is housed inside the sill holes 4. Although the upper surface of the guide bar 5 and the upper surface of the sill 3 are normally the same plane, when a guide rail 2 disposed below the sill 3 more than the door (riding-place door 1) passes, the guide bar 5 projects upward and is inserted into the opening of the lower end surface of the door (riding-place door 1).

Description

  The present invention relates to an elevator door guide device for guiding an elevator door lower end side.

  Conventionally, as a device that eliminates the sill groove that guides traveling when the landing door is opened and closed, and the door shoe that is attached to the landing door and engages with the sill groove, a door support bar is disposed on the back side of the landing door, A landing door device has been proposed in which one end of a door support rod is engaged with a support on the closed end side of the landing door when the door is fully closed, and is interlocked so as to rotate to the back side of the landing door when the landing door is fully open ( Patent Document 1).

  Alternatively, a door guide device has been proposed in which a lower end of a door and a sill are connected by a guide link and follow without resistance when the door opens and closes (see Patent Document 2).

JP-A-8-26632 (paragraph 0005, FIG. 1) JP 2009-166970 A (paragraphs 0007 to 0008, FIG. 2)

  In the guide device disclosed in Patent Document 1, a space for the door support bar to rotate is required for each landing door on the back side of the landing door, so that the entire door structure becomes larger than the current state. was there.

  Further, since the guide device disclosed in Patent Document 2 has one support point, it is necessary to prevent the deflection by increasing the strength of the guide link in preparation for an external force applied to the door from the landing side. For that purpose, since it is necessary to enlarge a guide link, there existed a problem which the whole door structure became large similarly to patent document 1. FIG.

  The present invention has been made to solve such a problem, and the guide bar is inserted into the opening at the lower end of the door from the sill hole of the sill to become a guide in the door opening / closing direction, and even if an external force is applied, the above described The structure is such that displacement can be prevented by a guide bar.

  Also, the guide rail connected to the door only needs to have a force to push the guide bar upward, so that a large strength is not required, and the door and the guide rail are connected by a thin plate-like bracket.

  In short, the present invention includes one or more doors, a sill, a plurality of sill holes opened in the sill, a guide rail connected to the door and passing through the lower surface of the sill, and the sill hole of the sill. A guide rod that passes over the guide rail and is inserted into the opening at the lower end of the door. When the door is closed, the guide rod on the guide rail protrudes from the sill hole of the sill and is inserted into the opening at the lower end of the door. When the door starts to open, the guide rail also moves in the opening direction at the same time, and the guide rod placed on the guide rail is lowered to be detached from the door and lowered to the same plane as the upper surface of the sill house. It is characterized by that.

  By adopting such a configuration, the thin plate-like bracket can be passed between the sill of the landing door and the sill of the car door, so that the door shoe can be eliminated without increasing the door structure.

    As described above, according to the present invention, since the diameter of the guide bar is equal to or less than the thickness of the door shoe, the thickness of the door, the width of the sill, etc. may be the same size as the conventional one, and there is no need to change the structure of the sill and the door. There is an effect that examination becomes unnecessary.

  As a result, when the door is open, the sill has no sill groove so that it does not crawl.

  Further, there is an effect of preventing the occurrence of a failure such as a pebbles or other foreign matter caught in the groove of the sill, the pebbles colliding with the door shoe, and the door cannot be opened or closed.

  In addition, instead of eliminating the door shoe, the guide rod protrudes from the sill to the door, so the width of the door may be the same as before, and in the case of the door shoe, it will come off the sill groove when external force is applied to the door, and it can not be opened and closed However, there is an effect of raising the upper limit of the external force at which the door cannot be opened and closed by making the height of the guide rod entering the door larger than the amount of the door shoe entering the sill groove.

It is a figure which shows one of embodiment of this invention, and is a front view which shows the state which the landing door closed. It is sectional drawing which looked at FIG. 1 from the direction of AA. It is a figure which shows embodiment of this invention, and is sectional drawing which looked at the state which the landing door opened from the direction of AA. It is an enlarged view which shows the part enclosed with B of FIG. It is sectional drawing seen from EE of FIG.

  Hereinafter, an embodiment of a door guide device according to the present invention will be described with reference to the drawings, taking a case of a landing door as an example.

  1 is a front view of the doorway showing a state where the landing door is closed, FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, FIG. 3 is a cross-sectional view taken along the line AA in FIG. Is an enlarged view of a portion surrounded by a point B in FIG. 1, and FIG. 5 is a cross-sectional view taken along line EE in FIG.

  1 is a landing door, 1A is a right door as viewed from the entrance, 1B is a left door, 2 is a guide rail connected to the landing door 1 via a link bracket 6 described later, and 2A is a horizontal guide rail 2 , 2B is an inclined portion of the guide rail 2, 3 is a sill, 4 is a plurality of sill holes drilled in the 3 sill, 5 is a guide bar stored in the sill hole 4 so as to be movable up and down, and 6 is a landing door Link brackets 6 and 21 for connecting 1 and the guide rail 2 are connected to the landing door 1, a hanger for opening and closing the landing door 1 by a door opening / closing device (not shown), and 22 a hanger rail for guiding the hanger 21.

  In this example, a description will be given by taking a two-piece single door as an example.

  The state when the landing door 1 is fully closed is shown in FIG.

  Here, the landing door 1 is suspended by a hanger 21 above the door, and a thin plate-like link bracket 6 extends from the lower end of the landing door 1 to form a gap between the landing door 1 and the car door (not shown). It connects to the guide rail 2 under the sill 3.

  As shown in FIG. 4, the guide rail 2 is inclined at the left and right ends 2B, and the central portion 2A is horizontal. A guide bar 5 protrudes from the sill 4 in the vertical direction of the guide rail 2, and the upper end surface of the guide bar 5 is adjusted to stop at the same height as the upper surface of the sill 4. As shown in FIG. 5, the lower side of the sill hole 4 has a smaller hole diameter than the upper side. The outer diameter of the guide rod 5 is larger on the upper side and smaller on the lower side. The large diameter part of the inserted guide rod 5 is hooked on the small diameter part of the sill hole 4. Thereby, the upper end surface of the guide bar 5 can be stopped at the same height as the upper surface of the sill 4.

  Further, when the guide rail 2 is not located directly below the guide bar 5, the guide bar is arranged so that the upper surface of the sill 3 and the upper end of the guide bar 5 are flush with each other as in the guide bar 5 on the right side of FIG. The length of the larger diameter of 5 is the same as the length of the larger diameter of the sill hole 4.

  When the guide rail 2 has moved directly below the guide bar 5, the guide bar 5 is pushed upward by the guide rail 2 and is inserted into an opening formed on the lower end surface of the landing door 1.

  If an external force is applied to the landing door 1 in a state where the landing door 1 is closed, the upper portion of the door is supported by the hanger 21 and the lower portion is supported by the guide rod 5, so that the landing door 1 falls to the inside of the tower. Is prevented.

  Next, the behavior of the guide bar 5 when the landing door 1 opens and closes will be described.

  As shown in FIG. 5, the left guide bar 5 in FIG. 5 is pushed up by the guide rail 2, but since the guide rail 2 is fixed by the landing door 1 and the link bracket 6, it interlocks with the landing door 1. Move. Therefore, as shown in FIG. 4, there are guide rods 5 that are pushed up by the movement of the guide rail 2 and those that are removed from the guide rail 2 and lowered to the position of the upper surface of the sill 4.

  Here, if there is only one guide bar 5 inserted into the opening of the landing door 1, the door may be twisted by an external force. The distance between the guide bars 5 is set so that the guide bars 5 are inserted into the opening of the landing door 1.

  When there are a plurality of landing doors 1, adjustments such as shifting the bracket fixing position between the front and rear doors are performed so that the thin plate-like link bracket 6 linking the landing door 1 and the guide rail 2 does not interfere with each other. .

  FIG. 2 is a cross-sectional view of the two doors as viewed from above. The left landing door 1 has a link bracket 6 extending from the center of the door, and the right door link bracket 6 is the left door link bracket 6. Since the position is shifted and fixed at the right end so as not to interfere with each other, the link brackets 6 do not contact each other even when the door is fully opened as shown in FIG.

  Further, when the landing door 1 is fully opened, the upper surface of the guide bar 5 on the entrance / exit side is all flush with the upper surface of the sill 3 (all flat), so that the passenger does not get caught.

  When the door is closed, the guide bar 5 is operated by the guide rail 2 so as to enter the opening at the lower end of the landing door 1 in the same manner as when the door is opened. At this time, by providing the roller 7 where the guide bar 5 contacts the guide rail 2, the guide bar 5 smoothly contacts the guide rail 2, so that the guide bar 5 moves up and down smoothly.

  As mentioned above, the conventional sill groove and guide shoe are eliminated, and there is a failure between the door and the sill, foreign objects are caught in the sill groove and the door cannot be opened and closed, wheelchair wheels, bogie tires, women's heels, etc. Accidents that can be prevented from getting stuck in the sill groove can be prevented.

  In this embodiment, the landing door has been described as an example, but the same guide device can be applied to the car door.

1 landing door 2 guide rail 3 sill 4 sill hole 5 guide bar 6 link bracket 7 guide bar roller 21 hanger 22 hanger rail

Claims (4)

One or a plurality of doors, a sill, a plurality of sill holes opened in the sill, a guide rail connected to the door via a link bracket, passing through the lower surface of the sill, and received in the sill hole of the sill, It has a guide bar that passes over the guide rail and is inserted into the opening at the lower end of the door.When the door is closed, the guide bar on the guide rail protrudes from the sill hole of the sill and is inserted into the lower end opening of the door. When the door starts to open, the guide rail also moves in the opening direction at the same time, and the guide rod placed on the guide rail is lowered so that it is detached from the door and lowered to the same surface as the upper surface of the sill. Elevator door guide device.   The size of the sill hole of the sill is large on the upper surface side of the sill and smaller on the lower surface side, and the diameter of the guide rod accommodated in this sill hole is larger on the upper surface side and smaller on the lower surface side. The elevator door guide device according to claim 1, wherein the elevator door guide device is structured.   The door guide device for an elevator according to claim 1 or 2, wherein at least two of the guide rods are inserted into the opening of the door when the door is opened and closed.   The elevator door guide device according to claim 1 or 2, wherein a roller is attached to a lower end of the guide bar.

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