WO2017009919A1

WO2017009919A1 - Elevator door device

Info

Publication number: WO2017009919A1
Application number: PCT/JP2015/069999
Authority: WO
Inventors: 夏希津谷
Original assignee: 三菱電機株式会社
Priority date: 2015-07-13
Filing date: 2015-07-13
Publication date: 2017-01-19
Also published as: KR20180022913A; JPWO2017009919A1; CN107835783A; CN107835783B; JP6179694B2; DE112015006709B4; KR101956521B1; DE112015006709T5

Abstract

The purpose of the present invention is to provide an elevator door device that can effectively prevent a slip-out prevention device from slipping out of a guide groove by dispersing and receiving an applied load using two pawls which demonstrate different pull-out prevention effects, i.e., a first pawl that abuts and catches on the first side surface of the guide groove, and a second pawl that abuts the second side surface of the guide groove due to deformation of a door leg, and that plastically deforms to catch on the second side surface. Provided is an elevator door device comprising a plurality of pawls, a first pawl and a second pawl, that are disposed so as to project at one side or both sides of the width direction of a door leg, and that slide in the width direction in a guide groove in unison with the door leg and that can each independently deform in conjunction with deformation of the door leg. The first pawl abuts and catches on the first side surface of the guide groove as a result of being displaced from a normal position by a load that is generated when a sliding door is pushed from a mainly vertical direction with respect to the width direction. The second pawl abuts the second side surface of the guide groove due to the deformation of the door leg, and plastically deforms to catch on the second side surface.

Description

Elevator door equipment

The present invention relates to a landing door device that can prevent a landing door from coming off due to an impact in an elevator landing door device.

An elevator door device has a structure in which a door panel is suspended from an upper part and a door leg is attached to a lower part. Also, by inserting the door leg into the sill groove, the door panel is not only smoothly guided when the door is opened and closed, but the door panel is not easily removed from the sill groove. The elevator door panel should be installed so that it cannot be easily removed by slight impacts, etc., to prevent users from falling from the landing to the hoistway and to prevent the landing-side equipment and the car-side equipment from interfering with each other. There is a need. However, there are cases where a large load is applied to the landing compared to normal use, such as a truck hitting or kicking. If the hall panel is removed, the user and the elevator equipment will be in a very dangerous state. Therefore, as a method for preventing such a door panel of the elevator from coming off, there is a configuration in which a protrusion for hooking on the step of the guide groove is provided at the lower end of the door leg, or an L-shaped deformable stopper device for the guide groove. There is a configuration to be provided (Patent Document 1).

JP 58-17081 A

In such an elevator door device, when the door panel is pushed by a large load compared to normal use such as hitting or kicking a carriage from the landing side, even if a locking device is provided, the load is large. There was a problem that it was deformed without being able to withstand, and it would come out of the guide groove. Moreover, the load which concerns on the structure which one anti-removal device receives all of such a big load was concentrated in one place without being disperse | distributed. Therefore, in order for the anti-slip device to withstand such a load, it is necessary to increase the strength of the anti-skid device. However, in order to increase the strength of the anti-slip device, the size of the device has to be increased, resulting in an increase in cost.

The present invention has been made to solve the above-described problem, and when the door panel is pushed by a large load compared to normal use, such as a truck hitting or kicking from the landing side, the normal position A first claw that is displaced from the first side of the guide groove and is hooked by contact with the other side of the guide groove due to deformation of the door leg, With the claws that have two different retaining effects, the load is distributed and received, so that the retaining device can be effectively removed from the guide groove without increasing the size of the retaining device and at a minimum cost increase. It is an object of the present invention to provide an elevator door device that can be prevented.

The elevator door device according to the present invention is formed with a sliding door that is suspended from the upper part and moves horizontally in the entrance direction of the elevator to open and close the entrance, and a guide groove that extends in the entrance direction along the lower side of the sliding door. A sliding leg that is attached to the door leg and slides in the guide groove along the opening and closing of the sliding door; A plurality of protrusions that protrude from one or both sides of the door leg in the doorway direction, move in the guide groove in conjunction with the door legs, and can be independently deformed as the door legs are deformed. A first claw that is displaced from a normal position and abuts against one side surface in the guide groove by a load acting when the sliding door is pushed from a direction substantially perpendicular to the frontage direction; For deformation of door legs , A second pawl caught plastically deformed abuts against the other side of the guide groove I is characterized in that it comprises a.

The present invention provides a first claw that is displaced from a normal position and is in contact with one side surface in a guide groove when a large load is applied to the door panel, such as a truck hitting or kicking from the landing side. And the second claw, which contacts the other side surface of the guide groove due to the deformation of the door leg and is plastically deformed to catch the load in a distributed manner. Thus, an elevator door device that can prevent the slip-off preventing device from coming off from the guide groove without increasing the cost can be realized.

It is a front view which shows the whole door apparatus of the elevator by Embodiment 1 of this invention. It is a front view which shows the principal part of FIG. 1 by Embodiment 1 of this invention. It is a side view (right side) of FIG. 2 by Embodiment 1 of this invention. It is sectional drawing (side view) which shows the cross section A of FIG. 2 by Embodiment 1 of this invention. It is sectional drawing (side view) which shows the cross section B of FIG. 2 by Embodiment 1 of this invention. It is sectional drawing (side view) which shows the cross section C of FIG. 2 by Embodiment 1 of this invention. It is sectional drawing (side view) which shows the cross section D of FIG. 2 by Embodiment 1 of this invention. It is sectional drawing (side view) which shows the operation | movement (normal time) of FIG. 2 by Embodiment 1 of this invention. It is sectional drawing (side view) which shows the operation | movement (at the time of door load effect | action) of FIG. 2 by Embodiment 1 of this invention. It is a front view (door leg) which shows the principal part of the door apparatus of the elevator by Embodiment 2 of this invention. It is a side view of FIG. 10 by Embodiment 2 of this invention. It is a front view (1st claw) which shows the principal part of the door apparatus of the elevator by Embodiment 2 of this invention. FIG. 13 is a side view of FIG. 12 according to Embodiment 2 of the present invention. It is a front view (2nd claw) which shows the principal part of the door apparatus of the elevator by Embodiment 2 of this invention. It is a side view of FIG. 14 by Embodiment 2 of this invention. It is a front view which shows the principal part of the door apparatus of the elevator by Embodiment 2 of this invention. FIG. 17 is a side view of FIG. 16 according to Embodiment 2 of the present invention.

Embodiment 1 FIG.
1 to 8 illustrate an elevator door apparatus according to Embodiment 1 of the present invention. FIG. 1 is a front view of the entire door apparatus, FIG. 2 is a front view showing the main part of FIG. 1, and FIG. It is a side view (right side) of 2. 4 is a sectional view (side view) showing a section A in FIG. 2, FIG. 5 is a sectional view (side view) showing a section B in FIG. 2, and FIG. 6 is a sectional view (side view) showing a section C in FIG. FIG. 7 is a sectional view (side view) showing a section D of FIG. FIG. 8 is a cross-sectional view (side view) showing the operation of FIG. 2 (normal time), and FIG. 9 is a cross-sectional view (side view) showing the operation of FIG. Note that illustrations of door closing devices, door motors, and the like are omitted as elevator landing equipment.

In the figure, a door device 1 is provided at a landing (not shown) or a car (not shown) and has a rail 2 that is long in the horizontal direction and a hanger 3 that has a roller 4 that rolls on the rail 2 in the horizontal direction. The door panel 5 is fixed to the hanger 3 and suspended, and a sill 6 having a side surface 6b and a side surface 6c of a horizontal guide groove is provided below the door panel 5. A door leg 7 is provided at the lower end of the door panel 5. The door leg 7 is inserted into the guide groove 6a, and the door panel 5 is a sliding door provided to open and close along the guide groove 6a in the frontage direction.

In the cross section A, the door leg 7 is provided with a mounting metal 7 a at the upper part, and is fixed to the lower end part of the door panel 5 by a fastening element 8 such as a bolt. A buffer / sliding member 7b is provided at the lower portion and is inserted into the guide groove 6a. By sliding the guide panel 6a along with the opening and closing of the door panel 5, the door panel 5 can be opened and closed smoothly. Supported. A first claw 7c and a second claw 7d are provided on both sides of the door leg 7 in the frontage direction, respectively, and are provided to project on both sides of the attachment metal 7a in the frontage direction, together with the buffer / sliding member 7b. It is inserted in the guide groove 6a. The guide groove 6a, the first claw 7c, the second claw 7d, and the attachment metal 7a are integrally formed. By providing a notch groove 9 between the first claw 7c and the second claw 7d, the first claw 7c and the second claw 7d are formed independently from each other when viewed from the cross section B. Each of them has been bent in a different shape.

In the cross section C, the first claw 7c is formed by bending its lower end into an L shape. The first claw 7c is normally inserted into the guide groove 6a together with the buffer / sliding member 7b, and is set so as not to contact the side surface 6b on the cage side and the side surface 6c on the landing side in the guide groove 6a. ing. The first claw 7c is adjusted in advance so that when the door leg 7 is deformed, the lower end of the first claw 7c comes into contact with the side surface 6b and the side surface 6c in the guide groove 6a so as to fall within a range.

In the cross section D, the second claw 7d is folded upward by a vertical portion 7e fixed to the attachment metal 7a and a first bent portion 7f provided at the lower end of the vertical portion 7e, and further the second bent portion 7g. The angle formed by the bent portion of the first bent portion 7f is set to an acute angle. Moreover, it is surrounded by three surfaces: a surface sandwiched between the vertical portion 7e, the first bent portion 7f and the second bent portion 7g, and a surface sandwiched between the second bent portion 7g and the tip end portion 7h. A space is formed in the part. The angles formed by the first bent portion 7f and the second bent portion 7g are set so that this space is formed. When a compressive load is applied to the second claw 7d in the vertical direction, this space concentrates stress on the

bending portions

7f and 7g provided in advance to facilitate the plastic deformation and the second claw after the plastic deformation. The length of the guide groove 6a in the width direction of the second claw 7d is provided so as to easily expand. The front end portion 7 h is in contact with the lower end portion of the door panel 5. The first bent portion 7f and the second bent portion 7g are normally inserted in the guide groove 6a together with the buffer / sliding member 7b so as not to contact the side surface 6b and the side surface 6c in the guide groove 6a. Is set to Further, the second bent portion 7g is adjusted in advance so that when the door leg 7 is deformed, the second bent portion 7g is in contact with the side surface 6b and the side surface 6c in the guide groove 6a and is plastically deformed to be caught. Yes.

Next, the operation of the first embodiment configured as described above will be described. In FIG. 8, the first claw 7 c and the second claw 7 d are interlocked with the opening / closing of the door panel 5 at the normal time, that is, when the door panel 5 is not subjected to a load from a direction substantially perpendicular to the frontage direction. Then, it slides in the guide groove 6a together with the buffer / sliding member 7b. At this time, since the first claw 7c and the second claw 7d are not in contact with the side surface in the guide groove 6a, the movement of the buffer / sliding member 7b is not hindered.

In FIG. 9, when the door panel 5 is pushed from a direction substantially perpendicular to the entrance direction on the landing side and a load 10a acts, the load 10a acts on the door leg 7 inserted in the guide groove 6a. The door leg 7 cannot move in a direction substantially perpendicular to the longitudinal direction of the guide groove 6a because the buffer / sliding member 7b is inserted in the guide groove 6a. On the other hand, the load 10a acts in a direction of pressing toward the car side in a substantially vertical direction. When the upper portion of the mounting metal 7a is pressed toward the car, it tilts toward the car and plastically deforms. The upper part of the first claw 7c moves to the car side along with the deformation of the attachment metal 7a, and the lower part is simultaneously pressed against the side surface 6b in the guide groove 6a. At this time, the L-shaped bent portion of the lower end of the first claw 7c is caught on the side surface 6b in the guide groove 6a, thereby preventing the door leg 5 from coming off the guide groove 6a.

Next, a case where the landing side of the door panel 5 is pushed from a direction substantially perpendicular to the frontage direction and a load 10b of a predetermined magnitude or more acts, that is, a case where the load 10b cannot be absorbed only by the first claw 7c. . When the load 10b acts on the door panel 5, the load 10b acts on the attachment metal 7a, and the first claw 7c is pressed against the side surface 6b in the guide groove 6a. Here, the load 10b acts on the first claw 7c, but the load 10b cannot be absorbed by the first claw 7c alone because the load 10b is larger than a predetermined size. Therefore, when the load 10b further acts on the attachment metal 7a, the upper part of the attachment metal 7a is inclined toward the car side to start plastic deformation, and the upper part of the second claw 7d is also inclined toward the car side. When the upper part of the second claw 7d is inclined and deformed toward the car side, the upper part of the vertical part 7e is also inclined toward the car side, while the lower part of the vertical part 7e, that is, the first bent part 7f is directed toward the landing side. Tilts upward. Since the first bent portion 7f is lifted upward by this inclination, the second bent portion 7g is also lifted upward, and a pressing force for displacing the tip end portion 7h acts. Here, since the front end portion 7h is in contact with the lower end portion of the door panel 5, it cannot be displaced upward from the position, so this load is perpendicular to the first bent portion 7f and the second bent portion 7g side. Acts as a compressive force compressing in the direction. When this compressive force acts on the first bent portion 7f and the second bent portion 7g, buckling in the vertical direction occurs in the second claw 7d. By this buckling, the angle formed by the first bent portion 7f is increased, and the angle formed by the second bent portion 7g is decreased, so that the width of the guide groove 6a of the second claw 7d is reduced. Length extends. That is, the pressing force with which the second bent portion 7g is pressed against the side surface 6c of the guide groove 6a is increased by the buckling of the second claw 7d in the vertical direction. As a result, the load 10b acts on the door panel 5 and the load 10b acts on the mounting metal 7a to cause plastic deformation, and the load 10b is absorbed even when the first claw 7c is pressed against the side surface 6b in the guide groove 6a. Furthermore, when a load is further applied to the attachment metal 7a, the second claw 7d is caught on the side surface 6c in the guide groove 6a to prevent the door leg 5 from being detached from the guide groove 6a.

As described above, according to the first embodiment, the door panel 5 is a sliding door that is suspended from above and moves horizontally in the entrance direction of the elevator to open and close the entrance, and the entrance along the lower side of the door panel 5. A sill 6 formed with a guide groove 6a extending in the direction, a door leg 7 attached to protrude downward from the lower end of the door panel 5, and a guide groove attached to the door leg 7 according to the opening and closing of the door panel 5. A sliding member 7b that slides in the frontage direction in 6a and a door leg 7 that protrudes on both sides in the frontage direction and slides in the guide groove 6a in the frontage direction in conjunction with the door leg 7 A plurality of claws that can be independently deformed in accordance with the deformation of the door leg 7, and are displaced from the normal position by a load that acts when the door panel 5 is pushed from a direction substantially perpendicular to the frontage direction. One in the guide groove 6a A first claw 7c that comes into contact with the side surface 6b and is hooked; and a second claw 7d that comes into contact with the other side surface 6c in the guide groove 6a by the deformation of the door leg 7 and is caught by plastic deformation. Thus, when the door panel is pushed due to a large load compared to normal use, such as hitting or kicking a carriage from the landing side, two different retaining effects of the first claw 7c and the second claw 7d Is formed integrally with the leg 7 of the door, and the load related to these two claws is distributed and received, so that the slip-off preventing device can be detached from the guide groove 6a without increasing the size of the slip-off preventing device. It is possible to realize an elevator door device that can effectively prevent this.

Embodiment 2. FIG.
FIGS. 10 to 17 illustrate an elevator door device according to Embodiment 2 of the present invention. FIG. 10 is a front view (door leg) showing the main part of the elevator door device, and FIG. 10 is a side view of FIG. 12 is a front view (first claw) showing a main part of the door device of the elevator, and FIG. 13 is a side view of FIG. FIG. 14 is a front view (second claw) showing a main part of the door device of the elevator, and FIG. 15 is a side view of FIG. 16 is a front view showing a main part of an elevator door device, and FIG. 17 is a side view of FIG. The elevator door device according to Embodiment 2 of the present invention is different in that both the first claw 12a and the second claw 13a are separately formed on both sides of the door leg 11 in the frontage direction. The same symbols other than those shown in FIG.

In the figure, the first claw 12b and the second claw 13b are both formed separately on both sides of the door leg 11 in the frontage direction. 9 to 10, the door leg 11 is provided with an attachment metal 11a at the upper part, and is fixed to the lower end of the door panel 5 with a fastening element 14 such as a bolt. A buffer / sliding member 11b is provided at the lower portion and is inserted into the guide groove 6a. When the door panel 5 is opened and closed, it slides in the guide groove 6a so that the door panel 5 can be opened and closed smoothly. Supported. The door leg 11 does not include the first claw or the second claw, and has the same configuration as that of the prior art.

12 to 15, a first claw 12b is provided so as to protrude on both sides of the attachment metal 12a, and the first claw 12b has the same configuration as the first claw 7c of the first embodiment. A second claw 13b is provided so as to protrude from both sides of the attachment metal 13a, and the second claw 13b has the same configuration as the second claw 7d of the first embodiment.

16 to 17, a mounting metal 12 a is provided on the side surface on the car side of the door leg 11, and a mounting metal 13 a is provided on the side surface on the landing side, and each is fixed by a fastening element 14. That is, the door leg 11 is sandwiched from both sides by an attachment metal 12 a provided on the car side and an attachment metal 13 a provided on the landing side, and is fixed to the lower end portion of the door panel 5.

Next, since the operation of the second embodiment configured as described above is the same as the operation of the first embodiment, a description thereof will be omitted.

As described above, according to the second embodiment, the first claw 12b and the second claw 13b are both formed separately on both sides of the door leg 11 in the frontage direction. The first claw 12b and the second claw 13b can be easily attached with almost no change in the structure of the door leg 11, and the door leg 11 in an already operating elevator can also be attached. The structure can be easily retrofitted with almost no change. As a result, it is possible to realize an elevator door device that can effectively prevent the anti-separation device from being detached from the guide groove without increasing the size of the anti-separation device in a newly installed and existing door device and at a minimum cost increase. .

1 door device, 2 rails, 3 hangers, 4 rollers, 5 door panels, 6 sills, 6a guide groove, 7,11 door legs, 7a, 12a, 13a mounting bracket, 7b shock absorbing / sliding member, 7c, 12b first Claw, 7d, 13b second claw, 7e vertical part, 7f first bent part, 7g second bent part, 7h tip part, 8, 14 fastening element, 9 notch groove, 10a, 10b load

The present invention relates to a landing door device that can prevent the landing door from coming off due to an impact in an elevator landing door device.

Claims

A sliding door that is suspended from the top and moves horizontally in the entrance direction of the elevator to open and close the entrance, a sill formed with a guide groove extending in the entrance direction along the lower side of the sliding door, and a lower end of the sliding door A door leg that protrudes downward from the door,
A sliding member that is attached to the door leg, slides in the guide groove direction in accordance with the opening and closing of the sliding door, and is provided to project on one or both sides of the door leg opening direction; A plurality of claws that slide in the front groove direction in conjunction with the door leg and can be independently deformed in accordance with the deformation of the door leg, and the sliding door is in the front door direction. A first claw that is displaced from a normal position by a load that acts when pushed from a substantially vertical direction, and is brought into contact with and caught on one side surface of the guide groove;
An elevator door device comprising: a second claw that comes into contact with the other side surface of the guide groove by plastic deformation and is caught by plastic deformation.
The one or both of the first claw and the second claw are formed integrally with the door leg on one side or both sides in the frontage direction of the door leg. Elevator door equipment.
3. The first claw and the second claw are formed separately from the door leg on one side or both sides in the frontage direction of the door leg, respectively. The elevator door apparatus as described in.
The elevator door device according to any one of claims 1 to 3, wherein the second claw is compressed and buckled by deformation of the leg of the door.
The lower end of the first claw is formed in an L-shaped bend, and the second claw is folded back from the lower end and formed in a dogleg-shaped bend. The elevator door device according to claim.