JP2010208745A - Elevator door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress a guide shoe provided on a sliding door from being removed from the guide groove of a sill without enhancing the strength and rigidity of the sliding door of an elevator. <P>SOLUTION: The elevator door device includes the sliding door 1; the sill 4 formed with the guide groove 5 having a narrow part in which groove width is narrow near an opening and a wide part at the lower part of the narrow part; a retaining member 9 mounted so as to be downward projected from the lower end of the sliding door 1; a slide member mounted to the retaining member 9, comprising an elastic material, having width in a groove width direction equal to or less than the groove width of the narrow part and sliding in the guide groove 5 in a frontage direction according to opening/closing of the sliding door 1; and a removal-stop part mounted to the retaining member 9, arranged so as to be projected in a groove width direction at the wide part, having the width in the groove width direction equal to or less than the width in the groove width direction of the slide member and comprising a harder material than the slide member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator door device provided with a guide shoe.

  As an elevator door device, for example, a technique described in Patent Document 1 is known. In the elevator door device described in Patent Literature 1, a sliding sliding door that opens and closes an entrance / exit of the elevator is provided, and a guide shoe (guide piece) is provided at a lower edge portion of the sliding door. The guide shoe is slidably fitted along a guide groove provided in the sill.

  The lateral width (groove width) dimension of the guide groove is formed slightly larger than the lateral width dimension of the guide shoe, and the guide shoe can be taken in and out from above the guide groove.

  In addition, as an elevator sliding door, the landing door provided in the elevator landing, and the car door provided in the passenger car correspond.

JP 2001-58784 A

  In the elevator apparatus described in Patent Document 1, no consideration is given to the following points.

  That is, when an elevator user or a package being transported collides with a sliding door, a large external force may act on the sliding door and the sliding door may bend greatly. If the sliding door bends greatly, it is considered that the guide shoe is lifted upward along with this deflection, and the guide shoe is disengaged from the guide groove of the sill to prevent the opening and closing of the sliding door.

  If the strength and rigidity of the sliding door are increased, the amount of deflection of the sliding door when an external force acts on the sliding door can be reduced, and the guide shoe can be prevented from coming off from the guide groove of the sill. However, in that case, the weight of the sliding door increases due to the reinforcement performed to increase the strength and rigidity of the sliding door, and the inertial energy when opening and closing the sliding door with the increased weight increases. For this reason, it becomes necessary to increase the driving force of the driving device for opening and closing the sliding door, and the emergency stop performance of the sliding door is reduced when a person or an object is caught in the sliding door during the door closing operation. .

  The present invention has been made to solve such problems, and its purpose is to prevent the guide shoe provided on the sliding door from coming off the guide groove of the sill without increasing the strength and rigidity of the sliding door of the elevator. It is to be.

  In order to achieve the above object, an elevator door device according to the present invention includes a sliding door that is suspended from above and moves horizontally in the entrance direction of the elevator to open and close the entrance, and below the sliding door. A guide groove extending in the frontage direction is formed, and the guide groove has a narrow portion with a narrow groove width near the upward opening, and a wide portion with a wide groove width below the narrow portion. And a holding member that protrudes downward from the lower end of the sliding door, and is made of an elastic material and is made of an elastic material, and the width in the groove width direction is a narrow portion of the guide groove. A sliding member that slides in the guide groove in the frontage direction in accordance with opening and closing of the sliding door, and is attached to the holding member or the sliding member. Projects horizontally in the groove width direction And a retaining portion made of a material harder than the sliding member, the width in the groove width direction being equal to or less than the width of the sliding member in the groove width direction. And

  ADVANTAGE OF THE INVENTION According to this invention, it can prevent that the guide shoe provided in the sliding door remove | deviates from the guide groove of a sill, without raising the intensity | strength and rigidity of an elevator sliding door, and installation and maintenance are easy.

It is a fragmentary perspective view which shows the guide shoe vicinity of 1st Embodiment of the elevator door apparatus which concerns on this invention. It is a partial side view which shows the guide shoe vicinity of 1st Embodiment of the elevator door apparatus which concerns on this invention. FIG. 3 is a partial side view showing the vicinity of a guide shoe in a state in which a sliding door of a car is pushed to a landing side in the elevator door device of FIG. 2. It is a partial side view which shows the guide shoe vicinity of 2nd Embodiment of the elevator door apparatus which concerns on this invention. It is a partial side view which shows the guide shoe vicinity of 3rd Embodiment of the elevator door apparatus which concerns on this invention. It is a partial side view which shows the guide shoe vicinity of 4th Embodiment of the elevator door apparatus which concerns on this invention.

  Embodiments of the present invention will be described below with reference to the drawings. Here, the same or similar parts are denoted by common reference numerals, and redundant description is omitted.

[First Embodiment]
FIG. 1 is a partial perspective view showing the vicinity of a guide shoe of a first embodiment of an elevator door apparatus according to the present invention. FIG. 2 is a partial side view showing the vicinity of the guide shoe of the first embodiment.

  In the elevator door device of this embodiment, the elevator car is provided with a car door that is a sliding door 1 that is slidable in the horizontal direction to open and close the doorway of the elevator. The sliding door 1 is supported and suspended by an upper rail (not shown), and is configured to be slid horizontally along the rail.

  A guide shoe 2 is detachably screwed to a lower edge portion of the sliding door 1 with an attachment screw 3. A plurality of guide shoes 2 are attached along the longitudinal direction of the lower edge of the sliding door 1.

  The elevator car is provided with a sill 4 at a position facing the lower edge of the sliding door 1, and a guide groove 5 into which the guide shoe 2 is slidably fitted is formed in the sill 4.

  The guide groove 5 is formed in a straight line along the sliding direction of the sliding door 1, and the cross-sectional shape in a plane orthogonal to the longitudinal direction of the guide groove 5 is a wide portion located on the lower side as shown in FIG. 6 and a narrow portion 7 located on the upper side, and a jaw portion 12 is formed therebetween. When the guide groove 5 is cut along a plane orthogonal to the longitudinal direction, the width A of the wide portion 6 of the guide groove 5 is larger than the width B of the narrow portion 7 (B <A).

  The guide shoe 2 includes a holding member 9, a retaining portion 10, and a sliding member 11. The holding member 9 is attached to the sliding door 1 with the attaching screw 3, extends vertically downward and penetrates the narrow portion 7, penetrates the through hole formed in the sliding member 11 in the vertical direction, and wide portion 6. It extends to. The retaining portion 10 is in the wide portion 6 and is attached to the lower end of the holding member 9 so as to protrude in the horizontal direction. The sliding member 11 is held by the holding member 9 and the lower end thereof is held by the retaining portion 10. The width C of the sliding member 11 in the groove width direction is slightly smaller than the width B of the narrow portion 7 (C <B), and the width D of the retaining portion 10 in the groove width direction is equal to the width C of the sliding member 11. Equivalent or slightly smaller (D ≦ C). The holding member 9 and the retaining portion 10 are made of, for example, metal and are made of a hard material. The sliding member 11 is made of an elastic material such as rubber. However, it is preferable that the sliding member 11 is slippery and not easily worn when sliding between the narrow portion 7 of the guide groove 5.

  When the sliding door 1 opens and closes, the sliding member 11 guides the sliding door 1 while sliding on the narrow portion 7 of the guide groove 5, and moves along the guide groove 5.

  When the car door sliding door 1 is closed and a person or luggage in the car pushes the sliding door 1 toward the landing side, the sliding door 1 moves to the landing side of the sliding member 11 (see FIG. 3). The right side) is pressed against the narrow portion 7 of the guide groove 5 and the portion of the sliding member 11 that is pressed is compressed, and the sliding door 1 tilts toward the landing. At this time, the protruding portion of the retaining portion 10 is caught by the jaw portion 12 between the wide portion 6 and the narrow portion 7. As a result, the stopper 10 is prevented from coming out of the wide portion 6, and the guide shoe 2 is prevented from coming off the guide groove 5.

  Moreover, in this embodiment, when the guide shoe 2 is attached to the sliding door 1 attached above the sill 4, the sliding member 11 is moved into the guide groove 5 if the guide shoe 2 is lowered from directly above the guide groove 5. Therefore, installation and maintenance work is easy.

[Second Embodiment]
FIG. 4 is a partial side view showing the vicinity of the guide shoe of the second embodiment of the elevator door device according to the present invention. In this embodiment, the wide portion 6 of the guide groove 5 extends only on the landing side, and the jaw portion 12 is formed only on the landing side. Further, the retaining portion 10 is formed so as to protrude only to the landing side. Other configurations are the same as those of the first embodiment.

  Since the sliding door 1 of the car door is closed and pushed by a person or baggage only in the direction from the car to the landing (from the left to the right in FIG. 4), to prevent the guide shoe 2 from coming off. This is enough. In addition, in this embodiment, the guide groove 5 is not provided on the opposite landing side, and the surface of the guide groove 5 is flat and contacts the entire sliding member 11. Therefore, the guide groove 5 is compared with the first embodiment. The contact area between the sliding member 11 and the sliding member 11 can be increased, the contact pressure is reduced, and the wear of the sliding member 11 is reduced.

[Third Embodiment]
FIG. 5 is a partial side view showing the vicinity of the guide shoe of the third embodiment of the elevator door device according to the present invention. In this embodiment, the retaining portion 10 is a metal rod-like body (pin), which is fixed to the holding member 9 within the wide portion 6 of the guide groove 5 and is perpendicular to the extending direction of the guide groove 5 horizontally. It is arranged to extend. For example, a through hole is formed in the sliding member 11, and the retaining member 10 is passed through the through hole, and the retaining member 10 is fixed to the holding member 9, whereby the sliding member 11 can be retained. .

  According to this embodiment, the sliding member 11 can be held at a predetermined position in the guide groove 5 with a simple structure, and the same effect as in the first embodiment can be obtained.

[Fourth Embodiment]
FIG. 6 is a partial side view showing the vicinity of the guide shoe of the fourth embodiment of the elevator door device according to the present invention. In this embodiment, the sliding member 11 is made of soft rubber, and the retaining portion 10 is made of soft rubber that is softer than the sliding member 11, so that the retaining portion 10 is in close contact with the lower portion of the sliding member 11. Two-phase integral molding.

  According to this embodiment, since the sliding member 11 and the retaining portion 10 are integrally formed in advance and then attached to the holding member 9, the attaching operation can be simplified. Further, the same effect as that of the first embodiment can be obtained.

[Other Embodiments]
Each embodiment described above is merely an example, and the present invention is not limited thereto.

  For example, in the description of the first to third embodiments, the retaining portion 10 is attached to the holding member 9, but the retaining portion 10 may be modified to be attached to the sliding member 11.

  Moreover, although the said embodiment demonstrated the case where this invention was applied to the car door attached to the passenger car, it is applicable similarly also to a landing door. In the case of a landing door, there is a possibility that a person or baggage may push the sliding door in the direction from the landing side to the hoistway side. Therefore, in 2nd Embodiment, the jaw part 12 and the retaining part 10 will be arrange | positioned at the hoistway side.

  Furthermore, the features of the above embodiments can be combined with each other. For example, in the third or fourth embodiment, the retaining portion 10 and the jaw portion 12 can be arranged on one side as in the second embodiment.

1: Sliding door 2: Guide shoe 3: Attachment screw 4: Sill 5: Guide groove 6: Wide part 7: Narrow part 9: Holding member 10: Retaining part 11: Sliding member 12: Jaw part

Claims (8)

A sliding door that is suspended from the top and moves horizontally in the entrance direction of the elevator to open and close the entrance,
A guide groove extending in the frontage direction is formed along the lower portion of the sliding door, and the guide groove has a narrow portion in which the groove width is narrowed in the vicinity of the upward opening, and the groove width is widened below the narrow portion. A sill configured to have a wide section;
A holding member attached to protrude downward from the lower end of the sliding door;
It is attached to the holding member and is made of an elastic material, and the width in the groove width direction is equal to or less than the groove width of the narrow portion of the guide groove, and the inside of the guide groove in the frontage direction in accordance with opening and closing of the sliding door A sliding member that slides;
It is attached to the holding member or the sliding member, and is arranged so as to protrude horizontally in the groove width direction at the wide portion of the guide groove, and the width in the groove width direction is the width in the groove width direction of the sliding member. And a retaining portion made of a material harder than the sliding member,
An elevator door device characterized by comprising:   When the sliding member is pushed in the direction perpendicular to the frontage direction and the sliding member is crushed, the width of the sliding member in the groove width direction is configured to be smaller than the width of the retaining portion in the groove width direction. The elevator door device according to claim 1, wherein   3. The elevator door device according to claim 1, wherein the sliding door is an elevator landing door, and the retaining portion protrudes only on a hoistway side of the elevator. 4.   3. The elevator door device according to claim 1, wherein the sliding door is a car door, and the retaining portion protrudes only on a landing side of the elevator. 4.   5. The elevator door according to claim 3, wherein the wide portion of the guide groove swells only on the surface side facing the surface on which the retaining portion protrudes with respect to the narrow portion. apparatus. The holding member extends downward from the lower end of the sliding door, extends through the narrow portion of the guide groove to the wide portion,
The retaining portion includes a rod-like portion that is fixed to the holding member in the wide portion and extends in the groove width direction,
The elevator door device according to any one of claims 1 to 5, wherein   The elevator door device according to any one of claims 1 to 6, wherein the sliding member and the retaining portion are integrally formed in two phases.   The sliding member is made of soft rubber, the retaining portion is made of hard rubber harder than the soft rubber, and the sliding member and the retaining portion are formed in two layers, or bonded or welded. The elevator door device according to claim 7, wherein

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