JP6242949B1 - Elevator equipment - Google Patents

Abstract

An elevator apparatus is provided that can reliably prevent the elevator car from moving up and down when the closing member is extended to the closing position. A closing member 35 is provided for closing a gap formed between a car-side sill 31 and a landing-side sill. The closing member 35 is configured to be movable between a closing position where the gap is closed and a retracted position at the bottom of the car side sill. It is driven by the drive mechanism 41. A sensor 81 for detecting whether the closing member 35 is retracted to the retracted position when the car door is in a closed state is provided to prevent the car from moving when the closing member 35 is not retracted to the correct retracted position. [Selection] Figure 6

Description

  An embodiment of the present invention relates to an elevator apparatus having a structure for closing a gap formed between a landing side and a sill on a car side provided at an entrance to a car.

  In an elevator system in which a car installed in the hoistway of a building moves up and down between floors to carry people and luggage, there is a constant distance between the landings on each floor and the car in order to raise and lower the car. The gap is provided. For this reason, when the car stops landing at the landing and the door of the entrance is opened, a gap is generated between the landing side sill and the car side sill. The gap between the sills is dangerous because it causes a person to stumble or a wheel such as a wheelchair or a bogie falls. In addition, small articles such as keys and cards may fall into the pit from the sill gap, making recovery difficult.

  In view of this, there has been proposed a closing member that closes the gap between the sills and operates so as to close the sill gap when the door is opened (see, for example, Patent Document 1).

JP-A-10-87244

  The closing member retreats to the lower part of the car floor when the elevator door is closed, and closes the gap between the sills when the elevator door is opened. In other words, the closing member is retracted and stored below the car sill while the elevator door is closed, and is extended toward the landing door sill with the door after the car is landing, It is configured to close the gap between the sills.

  However, if any failure occurs in the mechanism that moves the closing member, the car is raised and lowered while the closing member extended to the closing position that closes the sill gap at the time of landing does not retreat to the predetermined retraction position even when the door is closed. May work. In this way, if the car goes up and down without the closing member being in the retracted state, the closing member will collide with the sill on the landing side, giving a large impact to the car and damaging the closing member and its drive mechanism. There was a problem of doing.

  It is an object of the present invention to provide an elevator apparatus that can reliably prevent the elevator car from moving up and down in a state where the closing member is extended to the closing position.

The elevator apparatus according to an embodiment of the present invention includes a car-side sill that guides a car door provided at an entrance of a car along its opening and closing direction, and each floor on which the car can land, A shape that can block a gap formed between a sill on the landing side that guides the landing door provided at the entrance to the cradle along the opening and closing direction, and a sill on the car side and the sill on the landing side. anda member closes slidable movement between a avoid position retreat the closing position closes the gap, is coupled to the closing member, with the opening and closing operation of the car door, the actuating member of the car door side A link mechanism that converts the direction of the force received from the operating member by engagement with the operating member into the sliding movement direction of the closing member, and drives the closing member in the sliding movement direction, The closing member The link mechanism is connected to an operating spring that receives the moving force to the closing position, and the link mechanism is released from the engagement force with the operation member on the car door side with the start of the door opening from the door closing end of the car door. The sliding movement to the closing position by the operating spring is allowed, and the cage door is engaged with the operating member on the side of the car door as the car door is moved to the door closing end, and the closing force is received by the moving force of the car door. The closing member in a position is slid to the retracted position against the spring force of the operating spring, and the closing member is in the retracted position when the car door is closed. There is provided a sensor for detecting whether or not is retracted to the retracted position.

  According to the above-described configuration, by providing the sensor that detects whether the closing member has been retracted to the predetermined retracted position, it is possible to reliably prevent the elevator from moving up and down when the closing member is extended to the closing position. Further, damage to the closing member and its driving mechanism can be prevented.

It is a figure showing the whole elevator device composition concerning one embodiment of the present invention. It is the front view which looked at the door open state of the door part of the car in one embodiment of the present invention from the landing side. It is the front view which looked at the door closed state of the door part of the car in one embodiment of the present invention from the landing side. It is a perspective view which shows the relationship between the operation member by the side of the car door in one Embodiment of this invention, and a drive mechanism. It is a top view which shows the relationship between the blocking member in a retracted position, and a sensor. It is a top view which shows the relationship between the closing member in a closing position, and a sensor. It is a side view which shows the relationship between the closing member in a closing position, and the sill on the car side and the landing side. It is a side view which shows the relationship between the blocking member in a retracted position, and the sill on the car side and the landing side. It is the side view which removed some components from FIG. 8 and displayed the state of the closing member in an easy-to-see manner. It is a figure which shows another structural example of the sensor in embodiment of this invention. It is a perspective view which shows the relationship between the operation member by the side of the car door in another embodiment of this invention, and a drive mechanism.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  First, the overall configuration of the elevator apparatus will be described with reference to FIG. As shown in FIG. 1, the elevator apparatus 1 includes a passenger car 4 and a counterweight 5 disposed in a hoistway 3. Above the hoistway 3 is provided a machine room 6 in which a hoisting machine 7 for driving a main rope 9 and a control device 8 are installed. The control device 8 controls the entire elevator device 1 and controls the hoisting machine 7 in accordance with a landing call or a car call so that the car 4 is landed on the floor where the call was made.

  A so-called machine room-less elevator device in which the hoisting machine 7 and the control device 8 are downsized and provided in the upper part in the hoistway 3 without providing the machine room 6 may be used.

  In this elevator apparatus 1, an entrance 12 that leads to a car 4 in the hoistway 3 is provided at a landing 11 provided on each floor of the building, and a landing door 2 is provided at the entrance 12. The landing door 2 is engaged with the side of the car door 25 provided at the entrance / exit 24 of the car 4 via an interlock mechanism (not shown) when the car 4 is landed, and interlocks with the opening and closing of the car door 25. Opens and closes.

  2 and 3 are front views of the car door 25 provided at the entrance of the car 4, as seen from the landing 11 side. FIG. 2 shows a door open state in which the car door 25 is opened. FIG. The door closed state in which the door 25 is closed is shown. The car door 25 is a so-called double-opening method in which two door panels 25a and 25b (only the door contact portions are shown, and the other portions are not shown) are opened to the left and right in the drawing different from each other. These two door panels 25a and 25b are connected to a door opening / closing mechanism, and are driven to open / close by the door opening / closing mechanism in the horizontal direction in the figure.

  The door opening / closing mechanism is a well-known one and is not directly related to the present invention, so the description of the structure is omitted. However, the two door panels 25a and 25b are interlocked with each other by the power of a motor (not shown) to guide It is driven in the left-right direction along the rail to open and close.

  A car-side sill 31 is provided at the entrance / exit portion of the car 4, and guides the two door panels 25 a and 25 b constituting the car door 25 along its opening and closing direction. The car-side sill 31 is provided at the lower side of the car doorway 24, and the guide grooves formed on the upper surface thereof engage with the lower ends of the two door panels 25a and 25b to open and close them. Guide in the direction.

  As shown in FIGS. 7 to 9, a sill 32 is provided on the platform 11 side with respect to the sill 31 on the car side. The platform-side sill 32 is disposed opposite to one side surface (the left side surface in FIGS. 7 to 9) of the car-side sill 31 at a predetermined interval. A guide groove is also formed on the upper surface of the sill 32 on the landing side, and guides the landing door 2 shown in FIG. 1 along its opening and closing direction.

  The landing door 2 is also of a double door type having two door panels (not shown). As described above, when the car 4 reaches the landing 11, the car door 25 is engaged with the car door 25. It opens and closes together. That is, the landing door 2 has two door panels locked in a closed state by an interlock mechanism (not shown) when the car 4 is not landing, and when the car 4 is landing, the car 4 The locking state described above is released by engaging with an engaging member (not shown) on the side, and the door is opened and closed together with the car door 25.

  When the car 4 reaches the predetermined floor, a gap shown in FIGS. 7 to 9 is generated between the car-side sill 31 and the landing-side sill 32. A closing member 35 is provided to close this gap. As shown in FIGS. 2 and 3, the closing member 35 is divided into right and left. This divided portion is a portion in which the car-side sill 31 passes by an interlock mechanism (not shown) provided on the landing side when the car 4 is raised and lowered, and is spaced from side to side to allow passage of the interlock mechanism. It is divided to keep.

  In addition, when the car 4 is landed, the interval between the divided portions is inserted with a not-shown convex portion provided at a corresponding portion of the sill 32 on the landing side, and is substantially blocked by the convex portion.

  As shown in FIGS. 7 to 9, the upper surface of the closing member 35 is located below the upper surfaces of the car-side sill 31 and the landing-side sill 32. Moreover, the shape is formed in the shape dimension which can block | close the clearance gap between the thresholds 31 and 32 as shown in FIG. That is, it has a shape having a length that is slightly larger than the entrance of the car-side doorway 24 shown in FIG. 2 and a width that is slightly larger than the gap between the sills 31 and 32 shown in FIGS.

  In addition, the cross section is vertically long, and the facing portion 35a of the landing side sill 32 facing the right side of the drawing is shown in order to avoid the head of the screw 36a provided on the right side of the sill 32 on the landing side. It is formed at a position close to the right side. The screw 36a is for attaching the plate 36 that partitions the space between the lower floors. Further, a chamfer 35 b is applied to the upper corner portion of the closing member 35.

  The closing member 35 may be made of metal or resin, but a resin material may be used in consideration of workability and buffering properties with other components.

  The closing member 35 is configured to be movable between a closing position where the gap between the sills 31 and 32 shown in FIG. 7 is closed and a retreat position where the sill 31 is retracted to the lower part of the car-side sill 31 shown in FIGS. (FIG. 9 is a view in which some parts are removed from FIG. 8 in order to make the state of the closing member 35 in the retracted position easy to see). The drive mechanism 41, which will be described later, slides between the closing position and the retracted position as the car door 25 is opened and closed.

  The closing member 35 is attached via a leaf spring 52 on a bracket 51 provided on the drive mechanism 41 side. As shown in FIG. 4, the drive mechanism 41 is configured to be able to engage with the operation member 72 on the car door 25 side as the car door 25 opens and closes. Then, the force received from the actuating member 72 by the engagement with the actuating member 72 is converted into the moving direction of the closing member 35, and the closing member 35 is moved in the retracting direction.

  In this embodiment, as shown in FIGS. 5 and 6, the drive mechanism 41 can be rotated via four links 46, 47, 48, 49 and one end of each of these links and a connecting shaft 50. And a bracket 51 connected thereto. The four links 46, 47, 48, and 49 are rotatably supported via a pivot shaft 45 on a support member 44 provided on the car 4 side.

  Out of these four links, the inner links 47 and 48 are for connection driving, and the other end thereof is connected to a connection rod 55 via a connection shaft 54. An actuating spring 56 that generates a repulsive force is provided between the right end of the connecting rod 55 in the figure and the support member 44, and a force that translates the bracket 51 in the direction of pushing it from the state of FIG. 5 to the state of FIG. give.

  A base end portion of a lever 58 is integrally attached to the pivot shaft 45 of the link 46 constituting the drive mechanism 41. An operating pin 59 is erected at the tip of the lever 58. As shown in FIG. 4, the upper side surface of the operating pin 59 is disposed so as to be engageable with an operating member 72 provided integrally on the door panel 25 a side of the car door 25.

  The operation pin 59 is engaged with an operation member 72 provided on the door panel 25a side as shown in FIG. 4 when the car door 25 is in the door closed end position shown in FIG. 3 in which the car door 25 is completely closed. For this reason, the drive mechanism 41 is held in the state of FIG. 5 in which the repulsive force of the operating spring 56 is stored. That is, the closing member 35 is held at the retracted position shown in FIGS.

  On the other hand, when the car door 25 is opened and the door panel 25a starts the door opening operation from the door closing end of FIG. 3, the operation member 72 on the car door 25 side is moved to the right in the state shown in FIG. Therefore, the engagement with the actuating member 72 is released. For this reason, each link 46, 47, 48, 49 constituting the drive mechanism 41 is rotated counterclockwise in the figure about the pivot shaft 45 by the repulsive force of the operating spring 56. By the operation of the drive mechanism 41, the bracket 51 and the closing member 35 supported on the bracket 51 via the leaf spring 52 are extended from the state of FIG. 5 to the state of FIG. That is, the closing member 35 moves from the retracted position shown in FIGS. 8 and 9 to the closing position shown in FIG.

  On the other hand, when the car door 25 is closed from the fully opened state shown in FIG. 2, the door panel 25a is closed to the vicinity of the door closing end shown in FIG. Engage as shown. For this reason, the lever 58 having the operating pin 59 is driven in the clockwise direction in the drawing by the force in the closing direction of the door panel 25a. That is, the drive mechanism 41 returns the bracket 51 and the closing member 35 supported on the bracket 51 via the leaf spring 52 from the state of FIG. 6 to the state of FIG. 5 by the force in the closing direction of the door panel 25a. Therefore, the closing member 35 moves from the closing position shown in FIG. 7 to the retracted position shown in FIGS.

  As described above, the drive mechanism 41 is disengaged from the actuating member 72 by the door opening operation from the door closing end of the car door 25, so that the closing member 35 is moved to the closing position by the repulsive force of the actuating spring 56. Allow movement. Further, as the car door 25 moves to the door closing end, it engages with the actuating member 72 on the car door 25 side, receives the moving force of the car door 25, and moves the closing member 35 at the closing position to the retracted position. .

  That is, when the car door 25 starts to open, the closing member 35 immediately moves to the closing position. When the car door 25 is closed, the closing member 35 moves from the closing position to the retracted position immediately before the car door 25 is fully closed.

  However, if any failure occurs in the driving mechanism of the closing member 35, the closing member 35 that has been drawn out to the closing position shown in FIG. The car may move up and down without retreating to the retreat position.

  In order to prevent such a problem, in the embodiment of the present invention, as shown in FIGS. 5 and 6, when the car door 25 is closed, it is detected whether the closing member 35 is retracted to the retracted position. A sensor 81 is provided. If the sensor 81 detects that the closing member 35 has not been retracted to the predetermined retracted position despite the door being closed, the output of the sensor 81 prevents the car 4 from being raised or lowered. Then, the control device 8 shown in FIG. 1 is controlled.

  The sensor 81 shown in FIGS. 5 and 6 is a photoelectric sensor that is held by the support members 82 at both ends in the length direction of the car-side sill 31 and generates an optical axis X along the opening direction of the car door 25. is there. The photoelectric sensor 81 is positioned such that its optical axis X is shielded from light by the closing member 35 that is fed to the closing position, as shown in FIG.

  Also, a plurality of sensors 81 may be arranged in the vertical direction so that the optical axis X is formed in a planar shape within a predetermined range in the vertical direction as shown in FIG. By thus forming the optical axis X in a planar shape in the vertical direction, the optical axis X can be more reliably shielded by the closing member 35 fed out to the closing position.

  In the above configuration, when the car 4 is landed and the car door 25 is opened from the fully closed state, the drive mechanism 41 is disengaged from the actuating member 72, so that the actuating spring 56 is repelled. The closing member 35 by force moves from the retracted position shown in FIG. 5 to the closing position shown in FIG. Thus, the optical axis X by the sensor 81 is shielded by moving to the closing position of the closing member 35. Based on the output signal from the sensor 81, the control device 8 determines that the closing member 35 is in the closing position.

  When the car door 25 is closed so that the car 4 moves to another floor, the closing member 35 is driven to the retracted position by the drive mechanism 41 as described above. However, even if some abnormality occurs in the drive mechanism 41 and the car door 25 is fully closed, the closing member 35 may not be retracted to a predetermined retracted position.

  In this case, if the closing member 35 is not retracted to the predetermined retracted position, that is, remains at the closing position, the optical axis X by the sensor 81 remains shielded by the closing member 35. For this reason, the control device 8 determines that the closing member 35 is still in the closing position, and the car 4 does not move up and down even when the car door 25 is closed and the car 4 is called. Therefore, the car 4 does not move up and down while the closing member 35 is in the closing position, and damage to the closing member 35 and its drive mechanism 41 due to a collision with the sill 32 on the landing side can be reliably prevented.

  In addition, although the photoelectric type which produces the optical axis X was illustrated as the sensor 81, this invention is not limited to this, As shown in FIG. 10, the closing member 35 in a retracted position is arrange | positioned so that detection is possible. A non-contact type proximity sensor, or a contact type sensor arranged so as to be in contact with the closing member 35 in the retracted position may be used, although not shown.

  In any case, it is only necessary to detect that the closing member 35 has been retracted to the predetermined retracted position. By detecting that the closing member 35 has been retracted to the predetermined retracted position by the sensor 81, the car 4 can be raised and lowered. To be configured.

  In the above-described embodiment, the drive mechanism 41 is configured to constantly push the bracket 51 toward the landing side by the repulsive force of the operating spring 56 as shown in FIGS. 5 and 6. Instead of 56, a return spring 66 that generates a tensile force may be provided at the same location, and the bracket 51 and the closing member 35 supported by the bracket 51 may be configured to always apply a force to pull back to the retracted position shown in FIG. .

  In this case, as shown in FIG. 11, the operation pin 59 constituting the drive mechanism 41 comes into contact with and engages with the operation member 42 provided on the door panel 25a by the opening operation of the car door 25, so Rotate clockwise. That is, the operating pin 59 abuts and engages with the operating member 42 by opening the car door 25 to a predetermined open position, and the lever 58 and the pivot shaft 45 integral therewith are rotated counterclockwise in the drawing. Let By the operation of the driving mechanism 41, the closing member 35 supported on the bracket 51 and the upper portion thereof via the leaf spring 52 is moved from the retracted position shown in FIGS. 5, 8, and 9 to the closing member shown in FIGS. It is drawn out to the position.

  Although several embodiments of the present invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Elevator apparatus 2 ... Platform door 3 ... Hoistway 4 ... Car 25 ... Car door 31 ... Car side sill 32 ... Platform side sill 35 ... Closure member 41 ... Drive mechanism 42, 72 ... Actuation member 51 ... Bracket 52 ... leaf spring 56 ... action spring 59 ... action pin 66 ... return spring 81 ... sensor

Claims (4)

A sill on the side of the car that guides the car door provided at the entrance of the car along the opening and closing direction,
A sill on the landing side that guides a landing door provided at the entrance to the car on each floor where the car can be landed, along the opening and closing direction thereof;
And it has a shape which can close the gap, closing slidable movement between a avoid position retreat the closing position closes the gap member that occurs between the sill and the landing side of the sill of the car side,
The door is connected to the closing member, and can be engaged with an operation member on the side of the car door in accordance with the opening / closing operation of the car door. The direction of the force received from the operation member by the engagement with the operation member is slid A link mechanism that converts the moving member into a moving direction and drives the closing member in the sliding direction;
The closing member is connected to an operating spring that receives a moving force to the closing position, and the link mechanism is engaged with the operating member on the car door side when the door is opened from the door closing end. The resultant force is released to allow the operating spring to slide to the closing position, and as the car door moves to the door closing end, the car door side engages with the actuating member to move the car door. Receiving the force, the closing member in the closing position is configured to slide to the retracted position against the spring force of the operating spring;
Wherein the said retracted position of closing member, when said car door is closed, the elevator sensor that detects whether the closing member is retracted to the retracted position is provided apparatus.   The elevator apparatus according to claim 1, wherein the sensor is a photoelectric sensor that generates an optical axis that is shielded by the closing member at the closing position. The sensor, the elevator apparatus according to claim 1, wherein the non-contact proximity sensor that the closing member is arranged to be detected is in the retracted position. The sensor, the elevator apparatus according to claim 1, wherein the closing member can abut so arranged contact type sensor is in the retracted position.

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