JP6177380B1 - Elevator hall door stopper - Google Patents

Abstract

To provide a door stopper for an elevator hall door capable of preventing a person from falling into a hoistway from an opening after the hall door is manually opened. A door stopper 1 connects a first suction cup 10 attracted to a first door 61, a second suction cup 20 attracted to a second door 62, and the first suction cup 61 and the second suction cup 62. In addition, the first suction cup 61 and the second suction cup 62 are provided with a connecting portion 30 including an extension / contraction portion capable of extending / contracting the distance. The door stopper 1 is used to stop the manual opening operation of the landing door 60 including the first door 61 and the second door 62 before the landing door 60 is fully opened. [Selection] Figure 1

Description

  The present invention relates to a door stopper for an elevator hall door.

  The elevator is configured such that, during normal operation, when the car reaches the landing and the car side door opens, the lock that stops the landing door with respect to the landing stationary part is released, and the landing door opens. However, at the time of elevator failure, including when passengers are trapped in the cage, and during maintenance inspections, the landing doors must be opened and closed for passenger rescue, etc. even if it is not possible to confirm whether the cage is landing on the landing. It may be necessary. For such a case, as described in Patent Document 1, the elevator is unlocked when the key is inserted from the key insertion portion provided on the landing side of the landing door. The landing door is opened manually.

Japanese Utility Model Publication No. 58-170365

  When the key is inserted into the key insertion part and the landing door is opened, the cage is not landing on the landing, and the opening after the landing door is opened is connected to the hoistway (cavity) instead of the cage room A situation can arise. And even if such a case arises, it will be of great significance if maintenance workers or the like can be prevented from falling onto the hoistway.

  An object of the present invention is to provide a door stopper for an elevator hall door that can prevent a person from falling into a hoistway from an opening after the hall door is manually opened.

  The door stopper of the elevator hall door according to the present invention includes a first door and a second door, and performs a manual opening operation of the hall door that is opened and closed by relative movement of the first door and the second door. Is a door stopper for an elevator hall door used for stopping before fully opening, a first suction part sucked by the first door, a second suction part sucked by the second door, And a connecting part including an expansion / contraction part capable of expanding and contracting a distance between the first suction part and the second suction part, while connecting the first suction part and the second suction part.

  In addition, the door stopper of the elevator hall door of the present invention can be used for an elevator provided with a hall door having two or more doors as well as an elevator provided with a hall door having three or more doors.

  The door stopper of the landing door according to the present invention is used, for example, as follows when the first door and the second door included in the landing door move in opposite directions when the landing door is opened. That is, in a state where the landing door is closed, the first suction portion is attracted to the first door and the second suction portion is attracted to the second door in a state where the expansion / contraction portion is contracted most. In this case, since the first suction portion is sucked by the first door and the second suction portion is sucked by the second door, for example, a maintenance worker or the like tries to open the landing door for maintenance or the like. When the first door and the second door are manually moved in directions opposite to each other, the movement of the first door and the second door is stopped in a state where the expansion / contraction part is fully extended before the landing door is fully opened. The door stopper of the landing door according to the present invention is used to prevent the landing door from being fully opened.

  Or the door stopper of the landing door of the present invention is used as follows when the first door and the second door included in the landing door move in the same direction when the landing door opens. That is, in the state where the landing door is closed, the first suction portion is attracted to the first door and the second suction portion is attracted to the second door in the state where the expansion and contraction portion is most extended. In this case, for example, a maintenance worker or the like manually moves the first door and the second door in the same direction so as to increase the overlap in the thickness direction of the door in an attempt to open the landing door for maintenance or the like. Even so, the movement of the first door and the second door stops in a state in which the expansion / contraction portion is fully contracted before the landing door is fully opened. Therefore, even in this case, the door stopper of the landing door of the present invention is used to prevent the landing door from being fully opened.

  According to the above-described configuration, the first and second suctions are performed so that the opening width of the landing door in a state in which the movement of the first door and the second door is stopped by the operation of the door stopper is a width that a person cannot pass through. By adsorbing the part to the first and second doors, it is possible to prevent a maintenance worker or the like from falling on the hoistway. Furthermore, whether or not the maintenance worker or the like has landed on the landing is determined by visual recognition through the opening of the landing door when the movement of the first door and the second door is stopped by the operation of the door stopper. I can judge. In other words, maintenance workers, etc. can know whether or not the basket is landing on the landing area without worrying about falling from the hoistway, and the basket will land on the landing area before the landing door is fully opened. It is possible to alert maintenance workers in advance that there are no problems. Therefore, also from this point, it is possible to prevent a maintenance worker or the like from dropping into the hoistway.

  Further, in the present invention, the expansion / contraction part is formed of an expansion / contraction pipe that is extendable / contractible in the extending direction, and the connecting part is fixed to the expansion / contraction pipe and the first suction part and is one end of the expansion / contraction pipe. May be attached to the second suction portion and the other attachment portion to which the other end portion of the telescopic pipe is rotatably attached.

  When the first door and the second door move in the same direction when the landing door is opened, the first door and the second door are disposed at different positions in the thickness direction of the door. According to the above configuration, since the one end and the other end of the expansion pipe are rotatable with respect to the one side and the other side attachment section, the one side attachment section to which one side of the expansion pipe is attached, and the expansion pipe The other side mounting portion to which the other side is attached can be arranged at different positions in the thickness direction. Therefore, even when the first door and the second door are disposed at different positions in the thickness direction, the door stopper can be easily attached to the first and second doors.

  In the present invention, each of the first suction portion and the second suction portion is formed of a gel-type suction cup, and is fixed to the first suction portion and has a first handle having a grip portion, and the second suction portion. And a second handle having a grip portion and being fixed to the portion.

  According to the above configuration, since each of the first suction portion and the second suction portion is a gel type suction cup having excellent suction power, the first and second door stoppers can be moved to the first and second doors with high suction power regardless of the material of the first and second doors. It can be adsorbed to the second door. In addition, since the first and second handles having the grip portions are fixed to the first and second suction portions, the door stopper can be easily attached to the first and second doors using the first and second handles. Or can be easily removed from the first and second doors.

  According to the door stopper of the elevator hall door according to the present invention, it is possible to prevent a person from falling into the hoistway from the opening after the hall door is manually opened.

It is a mimetic diagram showing the state where the door stopper of the elevator hall door concerning one embodiment of the present invention is installed in the hall door. It is a front view of a door stopper. It is a top view of a door stopper. FIG. 4 is an enlarged plan view around a first suction cup in FIG. 3. It is sectional drawing of the axial direction of the expansion-contraction part in an expansion-contraction pipe. FIG. 2 is a plan view when the state shown in FIG. 1 is viewed from above the landing door. FIG. 7 is a plan view corresponding to FIG. 6 when the door stopper is installed on a landing door of a type different from the landing door shown in FIG. 1. It is sectional drawing corresponding to FIG. 5 in the door stopper of a modification.

  Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. In the following, when a plurality of embodiments and modifications are included, it is assumed from the beginning that a new embodiment is constructed by appropriately combining these characteristic portions.

  FIG. 1 is a schematic diagram showing a state in which the door stopper 1 of the elevator hall door according to one embodiment of the present invention is installed on the hall door 60. First, the installation method of the door stopper 1 to the landing door 60 will be briefly described with reference to FIG.

  The door stopper 1 includes a first gel suction cup (hereinafter simply referred to as a first suction cup) 10 as a first suction part, and a second gel type suction cup (hereinafter simply referred to as a second suction cup) 20 as a second suction part. The connection part 30 which connects the 1st suction cup 10 and the 2nd suction cup 20 is provided. The door stopper 1, for example, adsorbs the first suction cup 10 to the first door 61 of the landing door 60 so that the connecting portion 30 extends in the width direction X (hereinafter referred to as X direction) of the landing door 60. The two suction cups 20 are used by being attracted to the second door 62 of the landing door 60.

  Next, the structure of the door stopper 1 will be described in detail with reference to FIGS. FIG. 2 is a front view of the door stopper 1, and FIG. 3 is a plan view of the door stopper 1. FIG. 4 is an enlarged plan view of the periphery of the first suction cup in FIG.

  As shown in FIG. 2, the connecting portion 30 includes an expansion / contraction pipe 31, one side attachment portion 32, and the other side attachment portion 33. The connecting part 30 is preferably made of a metal or a resin material having no elasticity. Moreover, the one side attachment part 32 is fixed to the opposite side to the suction surface side of the first suction cup 10 by attachment means such as an adhesive, and the other side attachment part 33 is secondly attached by attachment means such as an adhesive. The suction cup 20 is fixed to the side opposite to the suction surface side. The stretchable pipe 31 can be stretched in the extending direction α (hereinafter referred to as α direction) of the stretchable pipe 31. The detailed structure of the telescopic pipe 31 will be described later with reference to FIG.

  As shown in FIG. 3, one end 34 of the expansion pipe 31 is rotatably attached to the one side attachment part 32, and the other end 35 of the expansion pipe 31 is attached to the other side attachment part 33 to be freely rotatable. It is done. Specifically, each of the one-side and the other-side attachment portions 32 and 33 has a U-shape in a plan view and has concave portions 37 and 38 that open in the α direction. The concave portion 37 of the one side mounting portion 32 and the concave portion 38 of the other side mounting portion 33 face each other in the α direction.

  One end 34 of the expansion / contraction pipe 31 is accommodated in the recess 37 of the one side attachment portion 32, and the other end 35 of the expansion / contraction pipe 31 is accommodated in the recess 38 of the other side attachment portion 33. As shown in FIG. 4, each of the two wall portions 53 and 54 that define the recess 37 in the one side attachment portion 32 is provided with a screw hole, and one end portion 34 of the expansion and contraction pipe 31 is provided with a through hole. It is done. The shaft portion of the bolt 40 is fastened into the two screw holes of the one side attachment portion 32 and passes through the through hole of the one end portion 34 of the expansion pipe 31. The nut 41 is fastened to the shaft portion of the bolt 40 from the side opposite to the concave portion 37 side of the one wall portion 53. Although not shown, the second suction cup 20 also has a structure including bolts and nuts similar to the first suction cup 10. With this configuration, the one end 34 of the telescopic pipe 31 can be rotated with respect to the shaft portion of the bolt 40, and the other end 35 of the telescopic pipe 31 can be rotated with respect to the shaft portion of the bolt of the second suction cup 20. Become.

  Referring again to FIG. 2, the first suction cup 10 is provided with a first suction cup body 11, a first suction cup mounting handle 12, and a first vacuum forming handle 13, and the second suction cup 20 has a second suction cup. A suction cup body 21, a second suction cup mounting handle 22, and a second vacuum forming handle 23 are provided.

  As shown in FIGS. 2 and 3, each of the first and second suction cup mounting handles 12 and 22 has a substantially U-shape, and the height direction β of the first and second suction cup bodies 11 and 21 ( 2 (see FIG. 2, hereinafter referred to as β direction) and two height direction extending portions, and gripping portions 15 and 25 for connecting the tip portions of the two height direction extending portions (see FIG. 3). And have. Since the door stopper 1 is provided with the first and second suction cup mounting handles 12 and 22, the user uses the first and second suction cup mounting handles 12 and 22 to hold the first and second suction cup main bodies 11 and 21. The first and second doors 61 and 62 can be strongly pressed. Therefore, the suction cup main bodies 11 and 21 can be reliably adsorbed to the first and second doors 61 and 62.

  Further, as shown in FIG. 2, the first and second vacuum forming handles 13 and 23 are respectively provided with fulcrum portions 18 and 28 attached to substantially the center of the back side surfaces of the suction cup main bodies 11 and 21, and fulcrum portions thereof. Rod-shaped pressing portions 16 and 26 extending substantially in the α direction. For example, after the first and second suction cup main bodies 11 and 21 are adsorbed to the first and second doors 61 and 62 by the first and second suction cup mounting handles 12 and 22, The fulcrum portions 18 and 28 are pushed down toward the first and second suction cup main bodies 11 and 21 in the direction indicated by the arrow A in FIG. Then, the center part of the back side surface of the first and second sucker bodies 11 and 21 is pulled to the side away from the first and second doors 61 and 62 according to the principle of leverage, and the first and second sucker bodies 11 and 21 A large negative pressure is generated in the enclosed space, and the space approaches a vacuum state. As a result, the suction force of the first and second suction cup main bodies 11 and 21 to the first and second doors 61 and 62 is remarkably increased, and the first and second suction cup main bodies 11 and 21 are the first and second suction cups. It becomes difficult to come off from the doors 61 and 62.

  Note that the gripping portions 15 and 25 of the first and second suction cup mounting handles 12 and 22 extend in a direction substantially orthogonal to the α direction, and the pressing portions 16 of the first and second vacuum forming handles 13 and 23. , 26 have been described as extending substantially in the α direction. However, the gripping portions of the first and second suction cup mounting handles may extend substantially in the α direction, and the pressing portions of the first and second vacuum forming handles extend in a direction substantially orthogonal to the α direction. May be present. Further, the case where the first and second suction cups 10 and 20 are provided with the first and second suction cup mounting handles 12 and 22 and the first and second vacuum forming handles 13 and 23 has been described. The second suction cup may not be provided with at least one of the first and second suction cup mounting handles and the first and second vacuum forming handles.

  Next, the detailed structure of the stretchable pipe 31 will be described with reference to FIG. 5, that is, a sectional view in the axial direction of the stretchable portion 39 passing through the central axis of the stretchable pipe 31.

  As shown in FIG. 5, the telescopic pipe 31 includes a first tubular member 45 and a second tubular member 50 having a smaller diameter than the first tubular member 45. The first cylindrical member 45 has a cylindrical portion 46, a first annular disc portion 47, and a second annular disc portion 48. The first annular disc portion 47 extends radially inward from the distal end portion of the cylindrical portion 46 on the second tubular member 50 side. Further, the second annular disc portion 48 is provided on the inner peripheral side of the cylindrical portion 46 so as to extend inward in the radial direction. The second annular disc portion 48 faces the first annular disc portion 47 in the α direction with a space therebetween.

  On the other hand, the second cylindrical member 50 includes a cylindrical portion 51 and an annular flange portion 52. The annular flange portion 52 extends radially outward from the distal end portion of the cylindrical portion 51 on the first tubular member 45 side. The outer diameter of the cylindrical portion 51 of the second cylindrical member 50 is smaller than the inner diameter of the first annular disc portion 47, and the outer diameter of the annular flange portion 52 of the second cylindrical member 50 is the first cylindrical member 45. It is smaller than the inner diameter of the cylindrical portion 46. The outer diameter of the annular flange portion 52 of the second tubular member 50 is larger than the inner diameter of the first annular disc portion 47 and larger than the inner diameter of the second annular disc portion 48.

  Therefore, the second tubular member 50 moves relative to the first tubular member 45 in the direction of arrow B until the annular flange portion 52 of the second tubular member 50 is locked to the first annular disc portion 47. The telescopic pipe 31 extends in the α direction. Further, the second tubular member 50 moves relative to the first tubular member 45 in the direction of arrow C until the annular flange portion 52 of the second tubular member 50 is locked to the second annular disc portion 48. The telescopic pipe 31 contracts in the α direction. As a result, the telescopic pipe 31 that can expand and contract in the α direction is formed.

  In addition, although the expansion-contraction width | variety of the expansion-contraction pipe 31 is preferable in it being the length which a person cannot pass through, for example, the length within the range of 10 cm-13 cm, it may be less than 10 cm and may be 13 cm or more. Moreover, although the case where the expansion-contraction part 39 of the expansion-contraction pipe 31 was comprised by the two cylindrical members 45 and 50 was demonstrated, the expansion-contraction part of a connection part is three or more members (each member is a shaft member and a cylindrical member). It may be composed of). For example, when the expansion / contraction part of a connection part is comprised with three members, the structure which two members on both sides expand / contract with respect to a center member may be sufficient.

  In the above configuration, the door stopper 1 is used as follows, for example. Specifically, as shown in FIGS. 1 and 6 (plan view when the state shown in FIG. 1 is viewed from above the landing door 60), the first door 61 and the second door 62 are opened when the landing door 60 is opened. When moving in directions opposite to each other in the direction indicated by the arrow D in FIG. 6, for example, the following is used.

  That is, in the state where the landing door 60 is closed, the first suction cup 10 is attracted to the first door 61 and the second suction cup 20 is attracted to the second door 62 in a state where the expansion / contraction part 39 is most contracted. Thereafter, a maintenance worker or the like moves the landing door 60 relative to the landing wall 68 by inserting a key from the landing side into a key insertion portion 65 (see FIG. 1) provided on the landing side of the landing door 60. The lock that is disabled is released. Thereafter, when a maintenance worker or the like manually opens the first door 61 and the second door 62 in directions opposite to each other to open the landing door 60, the door stopper 1 before the landing door 60 is fully opened. The movement of the first door 61 and the second door 62 stops in a state where the telescopic portion 39 is fully extended. Thus, the door stopper 1 prevents the landing door 60 from being fully opened.

  Alternatively, as shown in FIG. 7, that is, a plan view corresponding to FIG. 6 when the door stopper 1 is installed on a landing door 160 of a different type from the landing door 60 shown in FIG. 1, the door stopper 1 is a landing door. When the first and second doors 161 and 162 move in the same direction indicated by the arrow E when the 160 is opened (the second door 162 moves in the direction of the arrow E at approximately twice the speed of the first door 161). For example, it is used as follows.

  That is, in the state where the landing door 160 is closed, the first suction cup 10 is attracted to the first door 161 and the second suction cup 20 is attracted to the second door 162 in the state where the expansion / contraction part 39 is most extended. In this case, for example, even if a maintenance worker or the like manually moves the first door 161 and the second door 162 in the same direction so as to increase the overlap in the Y direction in order to open the landing door 160, the landing door The movement of the first door 161 and the second door 162 is stopped in a state where the expansion / contraction part 39 is fully contracted before the 160 is fully opened. Accordingly, also in this case, the door stopper 1 prevents the landing door 160 from being fully opened.

  The landing door 60 is normally opened and closed by an opening / closing mechanism, and when it is manually opened by a maintenance worker or the like, a relatively large force is required at the beginning. On the other hand, once it starts to move, a large force is unnecessary after that, and it is easy to open to full open. According to the above embodiment, the opening operation of the first doors 61 and 161 and the second doors 62 and 162 can be stopped by the operation of the door stopper 1 before the landing doors 60 and 160 are fully opened. Therefore, the first and second suction cups 10 and 20 are set to the first and second suction cups 10 and 20 so that the opening width of the landing doors 60 and 160 in a state where the opening operation of the landing doors 60 and 160 is stopped is a width through which a person cannot pass. By adsorbing to the second doors 61, 62, 161, 162, it is possible to prevent a maintenance worker or the like from dropping into the hoistway. Further, whether or not the maintenance worker or the like has landed on the platform by visual recognition through the opening of the platform doors 60 and 160 when the opening operation of the platform doors 60 and 160 is stopped by the operation of the door stopper 1. Can be judged. As a result, a maintenance worker or the like can know whether or not the basket is landing on the landing without worrying about falling from the hoistway, and the basket is landing before the landing doors 60 and 160 are fully opened. It is possible to alert maintenance workers in advance that they are not landing. Therefore, also from this point, it is possible to prevent a maintenance worker or the like from dropping into the hoistway.

  Moreover, since the expansion pipe 31 is rotatable with respect to the one side and the other side attachment portions 32, 33, as shown in FIG. 7, the one side attachment portion 32 to which one side of the expansion pipe 31 is attached; The other side attachment portion 33 to which the other side of the expansion and contraction pipe 31 is attached can be arranged at a different position in the Y direction. Therefore, even when the first door 161 and the second door 162 are disposed at different positions in the Y direction, the door stopper 1 can be easily attached to the first and second doors 161 and 162.

  Furthermore, since each of the first suction cup 10 and the second suction cup 20 is a gel type suction cup having excellent suction power, the door stopper 1 is greatly sucked regardless of the material of the first and second doors 61, 62, 161, 162. The first and second doors 61, 62, 161, 162 can be adsorbed by force. Further, since the first and second suction cup mounting handles 12 and 23 are attached to the first and second suction cups 10 and 20, the door stopper 1 can be easily attached to the first and second doors 61, 62, 161, and 162. Or can be easily removed from the first and second doors 61, 62, 161, 162.

  In addition, this invention is not limited to the said embodiment and its modification, A various improvement and change are possible in the matter described in the claim of this application, and its equivalent range.

  For example, in the above-described embodiment and modification, the case where each of the first and second suction units is configured by the gel suction cups 10 and 20 has been described. However, each of the first and second suction units is a gel type. You may comprise suction cups other than a suction cup.

  Moreover, the case where the one end part and the other end parts 34 and 35 of the expansion-contraction pipe 31 were rotatable with respect to the one side and other side attachment parts 32 and 33 was demonstrated. However, the one end portion and the other end portion of the telescopic pipe may be configured so as not to rotate with respect to the one side and the other side attachment portion, and the door stopper has a first and no step in the Y direction as shown in FIG. It may be a special product for a double door landing door provided with a second door.

  Further, as shown in FIG. 8, that is, a sectional view corresponding to FIG. 5 in the door stopper 101 of the modified example, the joint between the first tubular member 145 and the second tubular member 150 is a stretchable material, for example, You may coat | cover with the cylindrical member 155 comprised with rubber | gum. Specifically, one end of the cylindrical member 155 is attached to the outer peripheral surface of the first cylindrical member 145 with an adhesive or the like, and the other end of the cylindrical member 155 is attached to the outer peripheral surface of the second cylindrical member 150 or the like. May be attached. In this case, the cylindrical member 155 is configured to be extendable / contractable within the extendable / contractable range of the extendable pipe 131. Providing such a cylindrical member 155 is preferable because it can prevent a user from getting injured by pinching a finger at the joint between the first cylindrical member 145 and the second cylindrical member 150.

  Moreover, the case where the door stopper 1 was attached to the landing doors 60 and 160 which have only the two 1st and 2nd doors 61, 62, 161, 162 was demonstrated. However, the landing door may have three or more doors, and the first and second suction portions of the door stopper 1 may be attached to two different doors having three or more doors. In this case, the door stopper 1 is a door that cannot be moved by the lock (if the doors of the landing doors are all moving in the same direction, it corresponds to the slowest moving door) and the door When installed across the matching doors, the opening width in a state where the first and second doors are stopped is easily adjusted to a desired width, which is preferable. In addition, the door stopper may be attached to the closed landing door in a fully contracted state, may be attached in a fully extended state, or may not be in a fully contracted state or in a fully extended state. It may be attached.

  1, 101 door stopper, 10 first suction cup, 12 first suction cup mounting handle, 22 second suction cup mounting handle, 15, 25 gripping part, 20 second suction cup, 30 connecting part, 31, 131 telescopic pipe, 32 one side Side attachment portion, 33 Other side attachment portion, 39 Extendable portion, 60, 160 landing door, 61, 161 first door, 62, 162 second door.

Claims (3)

An elevator that includes a first door and a second door, and is used to stop a manual opening operation of the landing door that is opened and closed by relative movement of the first door and the second door before the landing door is fully opened. A door stopper for the landing door,
A first adsorbing portion adsorbed on the first door;
A second adsorbing part adsorbed on the second door;
A connecting part including an expansion / contraction part that connects the first adsorbing part and the second adsorbing part and can extend and contract the distance between the first adsorbing part and the second adsorbing part;
A door stopper for an elevator hall door. In the door stopper of the elevator hall door according to claim 1,
The stretchable part is composed of a stretchable pipe that can be stretched in the extending direction,
The connecting portion is fixed to the telescopic pipe and the first suction portion, and is fixed to the one side mounting portion to which one end portion of the telescopic pipe is rotatably mounted, and to the second suction portion and the The door stopper of an elevator hall door which has the other side attaching part to which the other end part of an expansion-contraction pipe is rotatably attached. In the door stopper of the elevator hall door according to claim 1 or 2,
Each of the first suction part and the second suction part is composed of a gel type suction cup,
A first handle fixed to the first suction portion and having a gripping portion;
A second handle fixed to the second suction portion and having a gripping portion;
A door stopper for an elevator hall door.

Images