JP6669643B2 - Door devices and elevators - Google Patents

Description

  The present invention relates to a door device and an elevator provided with the door device.

  Each floor of the building where the elevator is installed is provided with an entrance through which people and things can get on and off the elevator. In addition, the elevator car is provided with an opening through which people and objects can enter and exit. In addition, door devices that can be opened and closed are provided at the entrances and exits of the building structures and at the openings of the cars.

  Patent Literature 1 discloses an elevator door device that prevents the door from being detached. The door device described in Patent Literature 1 includes a mounting plate of a landing door lock device, a connecting plate and a hanger plate, and detachment preventing means for preventing the connecting plate from being bent. The detachment preventing means prevents the connecting plate from bending when the connecting plate is bent by an impact applied to the landing door, thereby preventing the landing door from being detached.

WO 2010/016739 pamphlet

  However, the door disengagement prevention mechanism described in Patent Literature 1 engages a locking member provided on a hanger plate and a hook member provided on a connecting plate with each other on a plane parallel to a plane of the door. It was a structure. With this structure, it is difficult to reduce the space required for arranging the locking member and the hook member, and it may not be applicable when the size of the elevator door device is limited.

  An object of the present invention is to provide a door device and an elevator that solve the above-mentioned problems of the related art and that can save the door in a space-saving manner.

In order to solve the above problems and achieve the object of the present invention, a door device of the present invention includes a base member provided above an entrance, a door rail provided on the base member and extending horizontally, and a door unit. Prepare. The door unit has a hanger roller, a door hanger, a door, and a steadying roller, and is movably hung on a door rail. The hanger roller rolls on the door rail, and the door hanger rotatably supports the hanger roller and is fixed to the door. The steady rest roller is rotatably supported by the door hanger, and vertically opposes the lower part of the base member. Further, the door unit is provided below the steady rest roller and has a falling-off preventing component having an inclined surface inclined with respect to the plane of the door. The base member is provided with a base member side bent portion having a locking inclined surface facing the inclined surface of the falling-off preventing component. When the fall prevention component collides with the base member side bent portion, the reaction force received by the fall prevention component from the base member side bent portion is divided into a horizontal component and a vertical component.

  In addition, the elevator of the present invention is a car that moves up and down the hoistway, a building-side door device provided at a platform where the car stops in the hoistway, and a building-side door device that is provided on the car and faces the building-side door device. And a car-side door device. The above-described door device is applied to at least one of the building-side door device and the car-side door device.

According to the door device and the elevator configured as described above, the door can be prevented from falling off in a small space.
Problems, configurations, and effects other than those described above will be apparent from the following description of the embodiments.

It is a lineblock diagram showing the example of composition of the elevator concerning a 1st embodiment of the present invention. It is a front view showing the door device concerning a 1st embodiment of the present invention. It is a side view showing the upper part of the door device concerning a 1st embodiment of the present invention. It is the explanatory view which expanded a part of upper part of the door device concerning a 1st embodiment of the present invention. It is a front view showing the door device concerning a 2nd embodiment of the present invention. It is a side view showing the upper part of the door device concerning a 2nd embodiment of the present invention.

  Hereinafter, embodiments for implementing a door device and an elevator according to the present invention will be described with reference to FIGS. In the drawings, common members are denoted by the same reference numerals.

<First embodiment>
[Elevator configuration]
First, the configuration of the elevator according to the first embodiment of the present invention will be described with reference to FIG.
FIG. 1 is a configuration diagram illustrating a configuration example of an elevator according to the first embodiment of the present invention.

  As shown in FIG. 1, an elevator 1 according to the first embodiment has a car 3 and a counterweight 4 that moves up and down in a hoistway 100 formed in a building structure, a main rope 5, and a sheave 6. A hoisting machine 7 and a deflector wheel 8 are provided. The main rope 5 suspends the car 3 and the counterweight 4. The main rope 5 is wound around the sheave 6, and the main rope 5 is mounted on the deflector 8.

  The hoistway 100 is formed in a building structure, and a machine room 110 is provided at the top. The hoisting machine 7 and the deflecting wheel 8 are arranged in a machine room 110. The car 3 is connected to a counterweight 4 via a main rope 5. In the elevator 1 configured as described above, the main rope 5 is driven by the rotation of the sheave 6 of the hoist 7, and the car 3 and the counterweight 4 move up and down in the hoistway 100 opposite to each other.

  FIG. 1 schematically shows only the lowermost floor 120 and the uppermost floor 130 as floors of the building structure. However, the architectural structure may have three floors or more. A building-side door device 140 is provided on each floor. The building-side door device 140 faces the car-side door device 30 provided on the car 3 when the car 3 stops. Then, the building side door device 140 opens and closes together with the car side door device 30.

[Door device]
Next, configurations of the car side door device 30 and the building side door device 140 will be described with reference to FIGS.
FIG. 2 is a front view showing the door device according to the first embodiment of the present invention. FIG. 3 is a side view showing an upper portion of the door device according to the first embodiment of the present invention. FIG. 4 is an explanatory diagram in which a part of an upper portion of the door device according to the first embodiment of the present invention is enlarged.

  The car-side door device 30 and the building-side door device 140 have the same configuration. Therefore, here, the car-side door device 30 and the building-side door device 140 are collectively referred to as door devices 30 and 140. The door devices 30 and 140 open and close the doorway (the doorway provided in the hoistway 100 of the building structure and the opening of the car 3) related to the elevator.

  Here, the direction in which the doorway of the elevator faces is defined as the depth direction, and the direction perpendicular to the depth direction is defined as the left-right direction. Therefore, the depth direction and the left-right direction are a part of the horizontal direction.

  As shown in FIG. 2, the door devices 30 and 140 are provided above an entrance relating to an elevator, and extend in a left-right direction with a base member 11 and a pair of door units 21 movably suspended from the base member 11. And

  As shown in FIG. 3, the base member 11 has a substantially L-shaped side surface perpendicular to the left-right direction, and is continuous with the upper plate portion 13 having a plane perpendicular to the up-down direction and the upper plate portion 13. And a front portion 14 extending downward. A door rail 15 formed by bending is provided at an intermediate portion in the vertical direction of the front portion 14. The door rail 15 extends in the left-right direction.

  At the lower part of the front portion 14, a vibration preventing engagement portion 16 and a base member side bent portion 17 are provided. The anti-shake engagement portion 16 is disposed below the door rail 15 and has an engagement surface 16a that is substantially perpendicular to the up-down direction and faces downward. An anti-sway roller 27, which will be described later, is rotatably engaged with the engagement surface 16 a of the anti-sway engagement portion 16.

  The base member side bent portion 17 is formed by bending a lower end of the front portion 14 and is inclined with respect to a plane of a door 24 of the door unit 21 which will be described later. The surface of the base member side bent portion 17 opposite to the surface facing the door unit 21 is a locking inclined surface 17a. The locking inclined surface 17a faces a later-described inclined surface 28c of a fall prevention component 28 of the door unit 21 at a predetermined distance.

  As shown in FIG. 2, the pair of door units 21 are arranged side by side in the left-right direction. The door unit 21 includes a door 24, a door hanger 25, a hanger roller 26, a steadying roller 27, and a falling-off preventing component 28. The door 24 is formed in a rectangular plate shape having a plane parallel to the left-right direction and the up-down direction.

  The door hanger 25 is fixed to the upper side of the door 24. The door hanger 25 has an L-shaped side surface, and has a fixing portion 25a fixed to the door 24 and a support piece 25b extending upward continuously to the fixing portion 25a.

  The hanger roller 26 is rotatably supported on an upper portion of the support piece 25 b of the door hanger 25, and rotatably engages with the door rail 15 of the base member 11. The anti-sway roller 27 is rotatably supported at a lower portion of the support piece 25 b of the door hanger 25, and rotatably engages with the engagement surface 16 a of the anti-sway engagement portion 16 of the base member 11. . Thus, the movement of the door 24 in the vertical direction is locked, and the vibration of the door 24 in the vertical direction is suppressed.

  The falling-off preventing component 28 is fixed to the support piece 25b of the door hanger 25 using the screw 29 together with the anti-sway roller 27. The falling-off preventing component 28 has a fixing portion 28a fixed to the support piece 25b, and an engaging portion 28b continuous with the fixing portion 28a and arranged below the steadying roller 27. The engagement portion 28b is inclined with respect to the plane of the door 24 and has an inclined surface 28c. The inclined surface 28c of the falling-off preventing component 28 is substantially parallel to the locking inclined surface 17a of the base member-side bent portion 17 of the base member 11 with a predetermined distance therebetween.

  For example, when an external force is applied to the door 24 in the horizontal direction from the right side in FIG. 3, the door 24 and the door hanger 25 are deformed and move, and the hanger roller 26 tends to fall off the door rail 15. At this time, the falling-off preventing component 28 provided on the door hanger 25 comes into contact with the base member side bent portion 17 due to the deformation and movement of the door 24 and the door hanger 25. The deformation of the door 24 and the door hanger 25 is suppressed and the hanger roller 26 is prevented from falling off from the door rail 15 by the reaction force received by the fall prevention component 28 from the base member side bent portion 17.

  As shown in FIG. 4, the falling-off preventing component 28 and the base member side bent portion 17 are bent so as to be inclined with respect to the plane of the door 24. Therefore, when an external force is applied to the door 24 in the horizontal direction from the right side in FIG. 4, the reaction force F received from the base member side bent portion 17 by the falling-off preventing component 28 is divided into a horizontal component Fx and a vertical component Force Fy.

  Further, the vertical component force Fy acts on the steady rest roller 27 via the door hanger 25. As a result, the anti-sway roller 27 is pressed from below against the anti-sway engagement portion 16 provided on the base member 11 and receives the reaction force Fy '. As a result, the vertical component force Fy applied to the falling-off preventing component 28 and the base member-side bent portion 17 can be reduced. The door 24 can be prevented from falling off.

  Further, since the inclined surface 28c of the falling-off preventing component 28 and the locking inclined surface 17a of the base member side bent portion 17 are inclined with respect to the plane of the door 24, the falling-off preventing component 28 is formed by bending at one place. it can. In this way, by minimizing the bent portion, it is possible to reduce the bending radius, the gripping allowance of the processing machine, etc., which should be taken into consideration at the time of bending, to reduce the restrictions on the component dimensions, and to reduce The size can be reduced. As a result, the size of the door devices 30 and 140 can be reduced, and the door devices 30 and 140 can be easily applied to an elevator having a limited size.

  On the other hand, in order to form the locking member and the hook member in the door disengagement prevention mechanism described in Patent Literature 1 (International Publication No. WO 2010/016739), at least two or more bending processes are required. For this reason, it is difficult to reduce the bending radius, the gripping amount of the processing machine, and the like, thereby reducing the restrictions on the dimensions of the components, which hinders a thinner and smaller door device. As a result, it is difficult to apply the door detachment prevention mechanism described in Patent Document 1 (International Publication No. 2010/016739) when the size of the door device is limited.

  Further, in the door devices 30 and 140 of the present embodiment, when the door 24 is normally opened and closed, the fall prevention component 28 and the base member side bent portion 17 are avoided in order to avoid contact between the fall prevention component 28 and the base member side bent portion 17. 17 is provided with a predetermined distance. The distance of this gap can be easily adjusted only by changing the mounting position of the falling-off preventing component 28 in the vertical direction. That is, when the mounting position in the vertical direction of the fall prevention component 28 is changed, the position of the engaging portion 28b with respect to the base member side bent portion 17 is displaced in the vertical and horizontal directions. Thereby, the gap between the falling-off preventing component 28 and the base member side bent portion 17 can be easily adjusted, and the number of adjustment operations can be reduced.

  In addition, in the door devices 30 and 140 of the present embodiment, the fall prevention component 28 is fixed to the door hanger 25 using the screw 29 together with the anti-sway roller 27. Thus, the number of assembling steps of the door devices 30 and 140 can be reduced.

<Second embodiment>
[Door device]
Next, a configuration of a door device according to a second embodiment of the present invention will be described with reference to FIGS.
FIG. 5 is a front view showing the door device according to the second embodiment of the present invention. FIG. 6 is a side view showing an upper portion of the door device according to the second embodiment of the present invention.

  The car-side door device 31 and the building-side door device 141 according to the second embodiment have the same configuration as the door devices 30 and 140 according to the first embodiment. Is provided with a door hanger side bent portion 39. Other configurations are the same as those of the door devices 30 and 140 according to the first embodiment. Therefore, common configurations are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 5, the pair of door units 32 are arranged side by side in the left-right direction. The door unit 32 includes a door 24, a door hanger 35, a hanger roller 26, and a steady roller 27. The door hanger 35 is fixed to the upper side of the door 24.

  As shown in FIG. 6, the door hanger 35 has an L-shaped side surface, and includes a fixing portion 35a fixed to the door 24 and a support piece 35b extending upward continuously to the fixing portion 35a. Have. A hanger roller 26 is rotatably supported on an upper portion of the support piece 35b of the door hanger 35. A swing stopper roller 27 is rotatably supported at a lower portion of the support piece 35b of the door hanger 35.

  A door hanger side bent portion 39 is provided at a lower portion of the support piece 35b. The door hanger-side bent portion 39 is formed by forming a U-shaped cut in the support piece 35b while leaving the upper side of the rectangle, and then bending the support piece 35b so as to be inclined with respect to the plane of the support piece 35b. That is, the door hanger side bent portion 39 is formed integrally with the support piece 35b (the door hanger 35).

  The door hanger side bent portion 39 is inclined with respect to the plane of the door 24, and has an inclined surface 39a. The inclined surface 39a of the door hanger-side bent portion 39 is substantially parallel to the locking inclined surface 17a of the base member-side bent portion 17 of the base member 11 with a predetermined distance therebetween.

  The door devices 31 and 141 according to the second embodiment can obtain the same effects as the door devices 30 and 140 according to the first embodiment. That is, when an external force is applied to the door 24 in the horizontal direction from the right side in FIG. 3, the deformation and movement of the door 24 and the door hanger 35 are suppressed, and the hanger roller 26 is prevented from falling off the door rail 15. Can be.

  In addition, since the vertical component force applied to the door hanger-side bent portion 39 and the base member-side bent portion 17 can be reduced, the door hanger-side bent portion 39 and the base member-side bent portion 17 can be made thinner and smaller, thereby saving. The door 24 can be prevented from falling off in the space. Further, by minimizing the bent portion for forming the door hanger-side bent portion 39, the bending radius and the allowance of the processing machine to be considered at the time of bending are reduced, thereby reducing the restriction on the component size. Therefore, the size of the door hanger side bent portion 39 can be reduced. As a result, the size of the door devices 31 and 141 can be reduced, and the present invention can be easily applied to an elevator having a limited size of the door device.

  In the door devices 31 and 141 according to the second embodiment, since the door hanger side bent portion 39 is integrated with the support piece 35b (the door hanger 35), the door devices 30 and 140 according to the first embodiment. Thus, the number of parts can be reduced.

[Modification]
As above, the embodiments of the door device and the elevator according to the present invention have been described, including their operational effects. However, the door device and the elevator according to the present invention are not limited to the above-described embodiment, and include various modifications without departing from the gist of the invention described in the claims. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described above. In addition, a part of the configuration of one embodiment can be replaced with the configuration of another example, and the configuration of one embodiment can be added to the configuration of another embodiment. Further, for a part of the configuration of each embodiment, it is possible to add, delete, or replace another configuration.

  For example, in the above-described first and second embodiments, the base member side bent portion 17 is provided. However, in the door device according to the present invention, a locking component is provided separately from the base member 11, and the locking component is attached to the base member 11 so that the door device has the same function as the base member side bent portion 17. You may.

  In the above-described first and second embodiments, the base member-side bent portion 17, the engaging portion 28b of the falling-off preventing component 28, and the door hanger-side bent portion 39 are inclined with respect to the plane of the door 24. . However, the door device according to the present invention only needs to have the locking inclined surface 17a and the inclined surfaces 28c and 39a, and the shape can be appropriately set.

  In the first and second embodiments described above, the locking inclined surface 17a and the inclined surface 28c (39a) face each other with a predetermined gap. However, in the door device according to the present invention, one of the base member side bent portion and the fall prevention component 28 (the door hanger side bent portion 39) has an inclined surface inclined with respect to the plane of the door 24. For example, one of them may be formed into a spherical surface.

  DESCRIPTION OF SYMBOLS 1 ... Elevator, 3 ... Car, 4 ... Balancing weight, 5 ... Main rope, 6 ... Sheave, 7 ... Hoisting machine, 8 ... Deflector car, 11 ... Base member, 13 ... Upper plate part, 14 ... Front part, Reference numeral 15: door rail, 16: prevention engagement portion, 16a: engagement surface, 17: base member side bent portion, 17a: locking inclined surface, 21, 32: door unit, 24: door, 25, 35: door hanger, 26: Hanger roller, 27: Anti-sway roller, 28: Fall-prevention parts, 28a: Fixed portion, 28b: Engaging portion, 28c, 39a: Inclined surface, 30, 31: Car side door device, 39: Door hanger side bending Section, 100: hoistway, 110: machine room, 120: lowest floor, 130: top floor, 140, 141: door device on the building side

Claims (4)

A base member provided above the entrance,
A door rail provided on the base member and extending in a horizontal direction;
A hanger roller that rolls on the door rail, a door hanger that rotatably supports the hanger roller, a door to which the door hanger is fixed, and a rotatably supported by the door hanger, and a lower part of the base member Having a steadying roller opposed in the vertical direction, and a door unit movably suspended on the door rail,
The door unit is disposed below the steady rest roller, and has a fall-prevention component having an inclined surface inclined with respect to the plane of the door,
The base member is provided with a base member side bent portion having a locking inclined surface facing the inclined surface of the falling-off preventing component ,
When the fall prevention component collides with the base member side bent portion, the reaction force received by the fall prevention component from the base member side bent portion is divided into a horizontal component force and a vertical component force. A unique door device. 2. The door device according to claim 1, wherein the inclined surface of the falling-off preventing component is substantially parallel to the locking inclined surface of the base member side bent portion . 3. The fall-off preventing component is fixed to the door hanger using a screw,
2. The door device according to claim 1, wherein a hole through which the screw of the falling-off preventing component passes is set to a size that allows a fixing position of the falling-off preventing component to be adjusted in a vertical direction. 3. A car that moves up and down the hoistway, a building-side door device provided at a landing where the car stops in the hoistway, and a car-side door that is provided in the car and faces the building-side door device In an elevator equipped with a device,
At least one of the building-side door device and the car-side door device,
A base member provided above the entrance,
A door rail provided on the base member and extending in a horizontal direction;
A hanger roller that rolls on the door rail, a door hanger that rotatably supports the hanger roller, a door to which the door hanger is fixed, and a rotatably supported by the door hanger, and a lower part of the base member Having a steadying roller opposed in the vertical direction, and a door unit movably suspended on the door rail,
The door unit is disposed below the steady rest roller, and has a fall-prevention component having an inclined surface inclined with respect to the plane of the door,
The base member is provided with a base member side bent portion having a locking inclined surface facing the inclined surface of the falling-off preventing component ,
When the fall prevention component collides with the base member side bent portion, the reaction force received by the fall prevention component from the base member side bent portion is divided into a horizontal component force and a vertical component force. Elevator featured.

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