JP7415290B1 - Elevator car door device - Google Patents

Abstract

An object of the present invention is to provide an elevator car door device that can prevent a user's finger pressing a safety shoe from slipping and releasing the car door from an open state. [Solution] An elevator car door device comprising a car door 1 for opening and closing an entrance/exit of a car, and a safety shoe 2 protrudingly provided at the end of the door closing side of the car door 1 so as to be able to move in and out. The protruding end of the safety shoe 2 is formed with a locking recess 23A which is recessed from the end surface of the protruding end toward the door opening side of the car door 1 and into which fingers can be locked. [Selection diagram] Figure 2

Description

The present invention relates to an elevator car door device that includes a safety shoe on the car door.

The safety shoe included in the elevator car door device is provided so as to protrude from the front end of the car door on the door closing side so as to be able to move in and out. Then, while the open car door is in the closing operation, a user or a foreign object comes into contact with the safety shoe and pushes the safety shoe toward the door opening side, thereby reversing the closing car door to the open operation. That's what I do.

By the way, when a user gets into or exits a car, if the car door is about to close, the user may press the safety shoe with his fingers to keep the car door open.

Japanese Patent Application Publication No. 2014-118293

By the way, as shown in FIG. 3 of Patent Document 1, for example, the tip surface of the safety shoe has an arc shape that projects toward the closing side of the car door, and the safety shoe has Due to the restoring force that tries to return the car door to the closing direction, the user's finger may slip while pressing the safety shoe to keep the car door open as described above, causing the car door to be in the open state. It could have been lifted, and there was room for improvement.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator car door device that can prevent the car door from being released from the open state due to slipping of the user's finger while pressing the safety shoe.

An elevator car door device of the present invention is an elevator car door device comprising: a car door that opens and closes an entrance/exit of a car; and a safety shoe that protrudes from a door closing side tip of the car door so as to be able to move in and out. The door device is characterized in that the protruding end of the safety shoe is formed with a locking recess that is recessed from the end face of the protruding end toward the door opening side of the car door and can be used to lock hands and fingers. It is said that

According to the present invention, the locking recess formed in the protruding end of the safety shoe allows the user's fingers to hold the car door in an open state when the user gets into or exits the car. If the car door is inserted and locked, the car door can be held open unless the user's fingers are released from the locking recess.

Further, in the elevator car door device of the present invention, a guide shoe that slides in a groove of a sill provided on the floor of the car is provided at the lower end of the car door, and the safety shoe is configured to The locking recess may be configured to have the same or substantially the same height as the height of the safety shoe, and the locking recess may be provided in a range of a predetermined height or more in the height direction of the safety shoe.

As mentioned above, if the locking recess is provided over the entire height of the safety shoe, dust in the groove of the sill will accumulate in the locking recess at the bottom end of the safety shoe, causing the car door to open and close. This may cause defects. Therefore, by providing the locking recess in a range above a predetermined height in the height direction of the safety shoe, dust in the groove of the sill will not accumulate in the locking recess and cause the car door to open or close incorrectly. It can be suppressed.

Further, the elevator car door device of the present invention includes a filling member that fills the locking recess, and the filling member is deformable when a finger is locked in the locking recess, and the filling member is deformable when a finger is locked in the locking recess, and the filling member is It may be made of a cushioning material that can be restored when the lock with the recess is released.

As described above, by providing the filling member that fills the locking recess, it is possible to suppress dust from accumulating in the locking recess. Moreover, since the filling member is made of a cushioning material that can be deformed when the finger is locked in the locking recess and can be restored when the lock between the finger and the locking recess is released, the safety shoe The pressure (reaction force) from the safety shoe on the fingers pressing down can be reduced.

The present invention provides a locking recess in the protruding end of the safety shoe that is recessed from the end face of the protruding end toward the door opening side of the car door, so that the user's fingers can be locked. It is possible to provide an elevator car door device that can prevent the car door from being released from the open state due to slipping of the car door.

FIG. 2 is a schematic front view of a door provided in the elevator according to the present embodiment, viewed from the hall side. It is a cross-sectional plan view which shows the safety shoe arrange|positioned at the car door provided for a car. Each of (a) and (b) is a plan view of another form of safety shoe. (a) shows a state in which the locking recess of the safety shoe shown in FIG. 3(a) is filled with a filling member, and (b) shows a state in which the locking recess of the safety shoe shown in FIG. FIG. 3 is a plan view showing a deformed state. Each of (a) and (b) is a plan view of another form of safety shoe.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator car door device according to the present invention will be described below with reference to the drawings.

As shown in FIG. 2, the elevator car door device includes a car door 1 that opens and closes an entrance to a car (not shown), and a car door 1 that protrudes from the end of the door closing side of the car door 1 so as to be able to move in and out. Equipped with 2 safety shoes. Further, on the landing side, a landing door 3 that can be opened and closed in conjunction with the car door 1 is provided. FIG. 1 is a front view of the hall door 3 seen from the hall side, and the car door 1 is overlapped behind the hall door 3 (see FIG. 2). These doors 1 and 3 are shown in an open state and are configured as a side-open type, but may also be a center-open type. Further, the number of doors 1 and 3 is not limited to the number shown in the figure. A wall 4 (see FIG. 2) is provided on the landing side of the landing door 3 to form an entrance/exit to the landing. In FIG. 2, the left and right sides of the car when viewed from the landing side are referred to as left and right, the back side of the car in the depth direction is referred to as the rear side, and the front side of the car in the depth direction is referred to as the front side.

The car door 1 is configured to be movable back and forth in the opening/closing direction H shown in FIG. 1, for example, along the longitudinal direction of the sill 5 provided on the floor of the car in FIG. 1, by a drive mechanism and a control device (not shown). . The car door 1 has guide shoes 6, 6 attached to its lower end, which guide the car door 1 in the opening/closing direction H by engaging and sliding in a groove 5M formed in the sill 5, and a car door. The above-mentioned safety shoe 2 is disposed on the landing side of the front end of the door closing side. As the car door 1 opens and closes, the landing door 3 opens and closes in conjunction with the opening and closing of the car door 1.

The safety shoe 2 is a vertically elongated member with a hollow interior, and is constructed by extruding aluminum. The height of the safety shoe 2 is configured to be the same (or may be substantially the same) as the height of the car door 1. The term "substantially the same" includes both a dimension longer or shorter than the height dimension of the car door 1. In this embodiment, extrusion molding is used as a molding method for the safety shoe 2, but injection molding, rolling molding, press molding, etc. can also be used.

As shown in FIG. 2, the safety shoe 2 includes a pair of front and rear side plates 21 and 22 that are spaced apart and parallel in the front and rear direction of the car, and a first connecting plate that connects the right ends of the side plates 21 and 22. 23, a second connecting plate portion 24 that connects the inner surfaces of the side plate portions 21, 22 at a portion closer to the right side than the center portion in the left-right direction, and a second connecting plate portion 24 connecting the inner surfaces of the side plate portions 21, 22 at a portion closer to the left side than the center portion in the left-right direction. A pair of protruding plate parts 25, 25 each protruding inward from the inner surface are provided. On the front side surface of the front side plate portion 21, an uneven portion 21A is formed in which convex portions 21a and concave portions 21b are alternately located from the right end to the middle portion in the left-right direction. Further, on the rear side surface of the rear side plate portion 22, an uneven portion 22A is formed in which protrusions 22a and recesses 22b are alternately located from the right end to the middle portion in the left-right direction. Although the design of the safety shoe 2 is improved by forming the uneven portions 21A and 22A in this manner, they may be omitted.

The first connecting plate part 23 located at the protruding end of the safety shoe 2 is connected to the end surface of the car door 1 on the door-opening side from the end face of the car door 1 on the door-closed side (the right end in FIG. 2). A locking recess 23A is formed on the left side (in FIG. 2) so that a finger can be locked therein. The locking recess 23A includes an arcuate curved surface 23B having the same radius of curvature from the front end to the rear end. By locking the fingers on this curved surface 23B, it is possible to suppress the fingers from slipping.

The locking recess 23A is provided over the entire height of the safety shoe 2, but may be provided over a predetermined height or more in the height direction of the safety shoe 2. In this case, after providing the locking recess 23A over the entire height direction of the safety shoe 2, the locking recess 23A in the range less than a predetermined height is filled with a filler, a closing member, etc. The locking recess 23A can be provided in a range of a predetermined height or more in the height direction of 2. The predetermined height is the minimum height at which the user can reach the safety shoe 2, for example, 400 mm from the bottom edge of the car door 1 (it may be lower or higher than 400 mm depending on the extension of the user, etc.) The height may be higher than that. In this way, by providing the locking recess 23A in a range above a predetermined height in the height direction of the safety shoe 2, dust accumulated in the groove 5M of the sill 5 moves to the locking recess 23A. Since accumulation can be suppressed, it is possible to prevent the car door 1 from opening/closing incorrectly.

The safety shoe 2 is supported by the car door 1, and, as shown in FIG. It is maintained in a protruding state by its length, and is configured to be able to move to the open side (left side) of the car door 1 when an external force G (see Fig. 1) is applied due to contact with a person or other object (Fig. (See the two-dot chain line in 1). When the detection means (not shown) detects movement of the safety shoe 2 toward the open side of the car door 1 due to contact with a person or other object, the control section (not shown) controls the movement of the car door 1 to the open side. A signal for moving toward the door opening side is output to the drive mechanism. In FIG. 1, the maximum movement position of the safety shoe 2 toward the door opening side of the car door 1 is a position that projects beyond the door opening side end of the car door 1, which is indicated by a two-dot chain line. The position may be flush with the door opening side edge. Further, the protruding position of the safety shoe 2 on the door closing side can also be freely changed. Note that a contact type sensor, a non-contact type sensor, or the like is used as the detection means.

Further, in order to hold the car door 1 in an open state when the user gets into or exits the car, the user's finger (index finger 7 in FIG. 2) is formed on the protruding end of the safety shoe 2. If the car door 1 is inserted into and locked in the locking recess 23A, the car door 1 can be held in the open state unless the user's finger is released from the locking recess 23A. Note that FIG. 2 shows the state immediately before the safety shoe 2 is pushed toward the door opening side. In addition, when the user pushes the safety shoe 2 with his/her fingers, the user's fingers enter the locking recess 23A and are locked, so the user's fingers are stuck in the gap S ( (see FIG. 2).

In FIG. 2, the index finger 7 is locked in the locking recess 23A, but other fingers or any number of fingers of two or more may be locked. Further, the outside of the palm of the hand (not shown) (from the side of the wrist to the side of the base of the little finger) may be locked in the locking recess 23A, or a part of the palm side of the hand may be locked in the locking recess. It may be locked to 23A. In other words, any of the five fingers (single or plural fingers) may be locked in the locking recess 23A, or any part of the hand may be locked.

The present invention can be modified in various ways without departing from its spirit. In addition, the specific configuration of each part is not limited to the above embodiment. For example, the safety shoe 2 shown in FIG. 2 may be the safety shoe 2 shown in FIGS. 3(a), (b) to 5(a), (b).

In FIGS. 3A and 3B, the shape of the locking recess 23A of the safety shoe 2 in FIG. 2 is different. The locking recesses 23A in FIGS. 3A and 3B are formed on curved surfaces 23C and 23D with a radius of curvature smaller than that of the curved surface 23B of the locking recess 23A of the safety shoe 2 in FIG. Although the radius of curvature of the curved surface 23C in FIG. 3(a) and the radius of curvature of the curved surface 23D in FIG. 3(b) are the same, they may be different. With this configuration, the depth F1 from the right end to the left end of the locking recess 23A (the depths in FIGS. 3(a) and 3(b) are almost the same) is the same as the depth F1 from the right end to the left end in FIG. Since the depth F2 becomes deeper than the depth F2, the locking depth with the finger becomes deep, and it becomes difficult for the finger to separate from the locking recess 23A. Further, the corner of the inner peripheral edge of the protruding end on the door closing side of the safety shoe 2 shown in FIG. 3(b) may be formed into a rounded corner. In addition, in FIG. 3(a), the outer peripheral edge of the protruding end of the safety shoe 2 on the door closing side has a right-angled corner 23K, whereas in FIG. The corner of the outer peripheral edge of the protruding end on the closed side is formed into an arcuate curved surface 23H. By providing this arcuate curved surface 23H, when a passenger (user) comes into contact with the safety shoe 2 when getting on or off the car, it is possible to prevent the passenger from feeling uncomfortable, such as feeling pain, for example. be able to.

Moreover, FIG. 4(a) shows a state in which the locking recess 23A of the safety shoe 2 shown in FIG. 3(a) is filled with the filling member 8. Note that the locking recess 23A of the safety shoe 2 shown in FIG. 3(b) may be filled with the filling member 8. The filling member 8 is deformable when the finger (index finger 7 in FIG. 4(b)) is locked in the locking recess 23A, and the filling member 8 is deformable when the finger (index finger 7 in FIG. 4(b)) and the locking recess 23A are locked. It is made of a cushioning material that can be restored when the lock is released (see FIG. 4(a)). In this way, by providing the filling member 8 that fills the locking recess 23A, it is possible to suppress dust from accumulating in the locking recess 23A. Moreover, the filling member 8 is made of a cushioning material that can be deformed when the finger is locked in the locking recess 23A, and can be restored when the lock between the finger and the locking recess 23A is released. , the pressure (reaction force) from the safety shoe 2 applied to the fingers pressing the safety shoe 2 can be reduced. Although sponge is used as the filling member (buffer material), various elastic materials with restoring force such as rubber and urethane may be used.

FIG. 5(a) shows a curved surface (a locking surface where a finger locks) of the locking recess 23A of the safety shoe 2 shown in FIG. Convex portions 231a and concave portions 231b form concave and convex portions 231A that are alternately located. By forming the uneven portion 231A on the curved surface 23B of the locking recess 23A, the fingers locked in the locking recess 23A become caught on the uneven portion 231A and become difficult to slip. Further, in FIG. 5(a), the locking recess 23A has an arcuate curved surface 23I with a rounded outer peripheral edge.

FIG. 5(b) shows a locking recess 23A having an arcuate curved surface 23J formed with a smaller radius of curvature than the curved surface 23B of the locking recess 23A of the safety shoe 2 shown in FIG. . Furthermore, an uneven portion 232A is formed on the curved surface 23J of the locking recess 23A (a locking surface on which a finger is locked), in which a projection 232a and a recess 232b are alternately located from one end to the other end in the front-rear direction. By forming the uneven portion 232A on the curved surface 23J of the locking recess 23A, the fingers locked in the locking recess 23A become caught on the uneven portion 232A and become difficult to slip. Moreover, in FIG. 5(b), the outer peripheral edge and inner peripheral edge of the protruding end of the car door 1 of the locking recess 23A are provided with rounded curved surfaces 23L and 23M. The convex portions 231a, 232a and the concave portions 231b, 232b in FIGS. 5(a) and 5(b) are formed so as to be continuous over the entire vertical direction of the safety shoe 2. The convex portions and concave portions may be formed discontinuously so that they are alternately located. Furthermore, the curved surfaces (locking surfaces where fingers are locked) 23B and 23J of the locking recesses 23A in FIGS. 5(a) and 5(b) are formed into flat curved surfaces without forming the uneven portions 231A and 232A. Good too. Furthermore, the uneven portions 231A or 232A shown in FIGS. 5(a) and 5(b) are formed on the curved surfaces (locking surfaces where fingers are locked) 23B, 23C, and 23D of the locking recess 23A in FIGS. 2 to 4. It can also be carried out. When the locking recess 23A is flat without the uneven parts 231A or 232A, there is an effect that dust is less likely to accumulate in the uneven parts.

The depth of the locking recess 23A in the embodiment described above can be set freely, but is preferably about 5 mm to 35 mm. Furthermore, although the locking surface of the locking recess 23A on which fingers are locked is a curved surface, it may be configured as a flat surface having a quadrangular shape, a triangular shape, or the like when viewed from above. In addition, in FIG. 5(b), the depth of the locking recess 23A is set to such a depth that 1/3 or more of the first joint of the finger enters the locking recess 23A.

Furthermore, in the embodiment described above, the safety shoe 2 is configured to have an internally hollow type, but it may also be configured from a solid shoe. Further, although aluminum is used as the material for the safety shoe 2, various metals other than aluminum, synthetic resins, etc. may be used.

1... Car door, 1A... Door closing side tip, 2... Safety shoe, 3... Landing door, 4... Wall, 5... Sill, 5M... Groove, 6... Guide shoe, 7... Index finger, 8... Filling member, 21, 22... Side plate part, 21A, 22A... Uneven part, 21a... Convex part, 21b... Concave part, 22a... Convex part, 22b... Concave part, 23A... Locking concave part, 23B, 23C, 23D, 23H, 23I, 23J, 23L, 23M...Curved surface, 23K...Corner part, 23...First connecting plate part, 24...Second connecting plate part, 25...Protruding plate part, 231A, 232A...Uneven part, 231a, 232a...Convex part, 231b, 232b...Concave part , F1, F2...Depth, G...External force, H...Opening/closing direction, S...Gap

Claims (2)

A car door that opens and closes the entrance and exit of the car;
An elevator car door device comprising: a safety shoe that protrudes from the end of the car door on the door closing side so as to be able to move in and out;
The protruding end portion of the safety shoe is formed with a locking recess that is recessed from the end face of the protruding end portion toward the door opening side of the car door and can be locked with a finger ;
A guide shoe that slides in a groove in a sill provided on the floor of the car is provided at the lower end of the car door, and the safety shoe has a height that is the same or approximately the same as the height of the car door. An elevator car door device , characterized in that the locking recess is provided in a range of a predetermined height or more in a height direction of the safety shoe . A car door that opens and closes the entrance and exit of the car;
An elevator car door device comprising: a safety shoe that protrudes from the end of the car door on the door closing side so as to be able to move in and out;
The protruding end portion of the safety shoe is formed with a locking recess that is recessed from the end face of the protruding end portion toward the door opening side of the car door and can be locked with a finger;
A filling member that fills the locking recess is provided, and the filling member is deformable when a finger is locked in the locking recess, and can be restored when the finger and the lock are released from the locking recess. An elevator car door device characterized in that it is made of a cushioning material .