JPS6033756B2 - Elevator door engagement device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of an engaging device for an elevator door.

A conventional elevator door engaging device will be explained with reference to FIGS. 1 to 4.

In the figure, 1 is a basket, 2 is a sliding basket door, 3 is a hatch, 4 is a hatch door similar to basket door 2, and 5 is a basket 1
6 is a link device connected to this, 7 is a car-side engagement device attached to the car door 2, and 8 is a first lever of this; is pivotally supported by the engaging device 7, that is, the car door 2, one end is pivotally connected to the lower end of the link device 6, and the other end is provided with a cam 8a.

Reference numeral 9 denotes a second lever having one end pivotally mounted on the car door 2, and a driven roller 10 engaged with a cam 8a at the middle part, and a first engaging element 11 consisting of a roller at the other end. ing.

Reference numeral 12 denotes a second engaging element 13, which is a roller that is separate from the first engaging element 11 and is pivotally connected to the car door 2 in a corresponding manner.
is a plate-shaped engagement body fixed to the door 4 of the hatchery, and the door 2 of the basket is
, both doors 4 of Hataba are fully closed, and car 1 is in Hataba 3.
When facing the grandchild combination 13 and the first and second engaging elements 11
, 12, a gap g is formed between each of them.

Now, assuming that the door 2-4 of the car and Hataba is closed and the door agitator 5 is energized, the link device 6 and the first lever 8 are each rotated counterclockwise in FIG. . First, the car door 2 moves in the door opening direction, and when it moves a distance corresponding to the gap g, the second engaging element 12 comes into contact with the engaging body 13. As a result, the door 4 starts to move in the door-opening direction.Then, the displacement of the driven roller 10 pressed by the cam 8a causes the first engagement element 11 to move toward the engagement body 1.
3, the first engaging element 11 comes into contact with the engaging body 13. Then, the engaging body 13 is connected to the first and second engaging members 11,
12, the cage and the front doors 2 and 4 are engaged with each other, and both are opened and closed together. The moving distance of the car door 2 required to complete this engagement is approximately 80 mm, as shown by curve A in FIG. 80 minutes from when the car door 2 begins to open to when it is fully engaged.
In the millimeter range, since the front door 4 is not held in the car door 2, the following problems may occur depending on the opening speed of the car door 2.

That is, if the opening speed at the beginning of opening of the car door 2 is fast, when the second engaging element 12 comes into contact with the engaging body i3 fixed to the Qinyu door 4, a collision sound is generated, and the Qinyu door 4 Start moving in the opening direction.

In addition, the moving speed of the Hataba door 4 is such that the second engaging element 12 is
3, but if this contact speed is high enough to generate the collision sound, the engaging body 13 that has once contacted the second engaging element 12 will be pushed away and move toward the first engaging element 11. The first engaging element 1 opens at a speed faster than the opening speed of the door 2.
It collides with the turtle and makes a collision sound.

Further, due to the collision, the engaging body 13 is rebounded toward the second engaging element 12, collides with the second engaging element 12, and generates a collision sound.

This operation causes the engaging body 13 to move between the first and second engaging members 11 and 12.
This process is repeated several times until it is completely clamped. In order to prevent this, conventionally, the speed of the car door 2 from the time when the car door 2 starts to open until the second engaging element 12 contacts the engaging body 13 is set such that the collision noise when the second engaging element 12 and the engaging body 13 come into contact is slow down so that it does not occur. Further, after the second engaging element 12 contacts the engaging body 13, the engaging body 13
The opening speed of the car door 2 is appropriately controlled so that the engaging body 13 does not separate from the second engaging element 12 until it is completely sandwiched by the second engaging elements 1 and 12. Note that after the engaging body 13 is completely held by the first and second engaging elements 11 and 12,
It goes without saying that even if the opening speed of the car door 2 is increased, the collision effect as described above will not occur.

Conventionally, the opening speed control of the car door 2 is performed by providing a complicated electric circuit in the door drive mechanism 5, which has the disadvantage that the door drive mechanism 5 is expensive and maintenance is complicated. In addition, the first and second engagers 11, 1
2 is equipped with tires made of rubber or the like, but their wear makes the engagement unstable, which prevents the smooth opening and closing of the car and landing doors 2 and 4, and also produces noise. Ta. The present invention solves the above-mentioned drawbacks and provides an elevator door engagement device in which both the car door and the car door engage via an elastically deformable body.

An embodiment of the present invention will be described below with reference to FIGS. 4 to 6.

In the figure, the same reference numerals as those in FIGS. 1 to 3 indicate corresponding parts, and 14 is a first compressor coil which is held at one end in the car door 2 and the other end in the middle of the second lever 9. Biasing body, 1
5 is a third lever having one end pivoted in the middle of the second lever 9, the middle facing the upper end of the second lever 9, and the other end holding the first engager 11; 16 is the second lever 9, the third lever 15 is pressed, and the third lever 15 is brought into contact with the upper end of the second lever 9.
7 has one end pivoted to the car door 2, and a second engaging element 1 at the pond end.
A fourth lever 18, which pivotally supports 2, is held by a prevention piece 19 erected from the car door 2 and presses the fourth lever 17,
This is a second elastically deformable body made of a compression coil spring that makes this come into contact with the blocking piece 19. That is, the first engaging element 11' is urged clockwise in FIG. 5 via the third lever 15 and held at a predetermined position.

Further, the second engaging element 12 is urged counterclockwise via the fourth lever 17 and is held at a predetermined position. The urging forces of the first and second engaging members 11 and 12 are equal to each other,
Further, the first and second elastic deformable bodies 16 and 18 are set so as not to be compressed against normal opening and closing resistance of the car door 2 and the front door 4. Further, when the first lever 8 rotates, the amount of rotation of the second lever 9 by the cam 8a and the driven roller 10 is converted into the displacement of the first engagement element 11, and is slightly larger than twice the gap g. There is. When the car door 2 moves in the door opening direction D by a distance corresponding to the gap g from the state shown in FIG. 5, that is, the state shown in FIG. If so, the state shown in Fig. 6b is reached, and if there is no particularly large door opening resistance on the front door 4, the engaging body 13 is pushed by the second engaging element 12 in this state, and the front door 4 moves in the door opening direction. Start moving. During this time, the first lever 8 continues to rotate, thereby causing the second lever 9 to rotate, so that the first engaging member 11 comes into contact with the engaging body 13, resulting in the state shown in FIG. 6c.
Since the holding operation of the front door 4 by the car door 2 starts in the state c in FIG. 6, it becomes possible to control the operation of the front door 4 by the movement of the car door 2 from now on. Also, the first
The engager 11 is connected to the third lever 1 via the first elastic deformable body 16.
5, the first engaging element 11 is held at the engaging body 13.
Even if the speed at which the object moves toward and contacts the object is increased, the sound produced when the two contact each other can be reduced.
Therefore, the relationship between the moving distance of the car door 2 and the operation of the engaging device 7 in this embodiment can be set as shown by curve B in FIG. 4. Since the engagement device 7 is in the state shown in FIG. 6c at point C of the curve B, the moving distance of the car door 2 while the engagement device 7 moves from FIG. 6a to FIG. 6c is It can be made shorter than the embodiments shown in FIGS. 1 to 3, and it is also possible to make this moving distance about 28 mm. Therefore, since the hatch door 4 is opened and closed together with the car door from an early stage when it starts to open, and close to fully closed when the door finishes closing, the hatch door 4 is fully controlled by the car door 2. It turns out. In the state shown in FIG. 6c, the first lever 8 further rotates as the car door 2 moves, and the second lever 9 rotates, so that the first and second elastic deformable bodies 16 and 18 A compression amount of 6 is generated and the engaging body 13' is compressed, resulting in the state shown in FIG. 6d. In this state, the car door 2 and the Hataba door 4 move in the door opening direction D. Further, when the car door 2 is opened from the state shown in FIG. 6a, if the speed of the car door 2 is greater than a predetermined value or the door opening resistance of the Hataba door 4 is greater than a steady value, When the second engaging element 12 comes into contact with the engaging body 13, the second elastically deformable body 18 is compressed and enters the state shown in FIG. 6e. As a result, the engaging body 1
Since the collision between the second engaging element 3 and the second engaging element 12 is buffered, generation of noise can be prevented. Therefore, it is possible to eliminate the discomfort felt by the passengers on the elevator due to this noise, and moreover, this effect can be obtained at low cost without complicating the control device for the door driving machine 5. Note that when the opened car door 2 or the front door 4 is closed, the first and second engaging elements 11, 12, etc. operate in the opposite manner. Therefore, detailed explanation will be omitted. In addition, in this embodiment, when the engagement between the first and second engagers 11 and 12 and the engagement body 13 is completed, a compression amount of 6 is generated in the first and second elastic deformable bodies 16 and 18, and the engagement body 13 is compressed. It was explained as a thing.

However, if the spring constants of the first and second elastic deformable bodies are set appropriately, the fourth
- The same effect as the embodiment shown in FIG. 6 can be obtained. Further, in the embodiments shown in FIGS. 4 to 6, the engaging body 13 is attached to the car door 2.
However, it is clear that the present invention can be easily applied to the well-known elevator door device in which the engaging devices 7 are arranged on each of the front doors 4, and a similar effect can be obtained.

Fig. 7 shows another embodiment of the present invention, and Fig. 7 shows another embodiment of the present invention.
, and FIG. 6, the same reference numerals indicate the same parts, and 20 is a detection device consisting of a microswitch attached to the second lever 9 and whose actuating part is in contact with the third lever 15. In FIG.

That is, when the door 4 of the landing during the door closing operation collides with an obstacle such as a passenger, an excessive pressing force acts on the first engaging element 11 via the engaging body 13.

As a result, the first elastically deformable body 16 is abnormally compressed, the amount of compression exceeds 6, and the third lever 15 is abnormally displaced with respect to the second lever 9. Therefore, the detection device 20 operates, and through this operation, the door driving device 5 is controlled to stop or open the door. Therefore, in this embodiment, in addition to the effects of the embodiments shown in FIGS. 4 to 6, it is possible to prevent accidents caused by obstacles during the door closing operation. 8th to 1st
Figure 0 also shows another embodiment of the present invention.
- The same reference numerals as in FIG. 7 indicate corresponding parts, 13 is an engaging body formed by a first elastically deformable body 16 and a second elastically deformable body 18 consisting of a plate spring village, and 13a is a door 4 with a part of Qinba. The first and second elastically deformable bodies 16 are fixed to the
, 18 is a mounting bracket with fixed ends, 21 is Hataba door 4
A blocker 22 is similar to the blocker 21 and is disposed opposite to the second elastically deformable body 18. There is.

Reference numeral 20 denotes a detection device consisting of a microswitch whose actuating portion is disposed inside the second elastic deformable body 18.

That is, the first and second elastic deformable bodies 16 and 18 are each manufactured in a shape that is curved outward from each other, so that the front door 41
In the attached state, the blocks are elastically deformed by the blockers 21 and 22 so that they become parallel to each other.

In this state, the first and second elastic deformable bodies 16 and 18
Each of these has outward stress acting on it. That is, this embodiment is similar to the first embodiment in the embodiments shown in FIGS. 4 to 6.
, the second elastic deformable bodies 16 and 18 are replaced with first and second elastic deformable bodies 16 and 18 in the form of leaf springs forming the engaging body 13. Further, the operating portion of the detection device 20 in FIG. 7 is placed in contact with the second elastic deformable body 18. Therefore, as shown in FIGS. 10a to 10d, the same operations as in FIGS.
This occurs between the second engagers 11 and 12 and the first and second elastically deformable bodies 16 and 18 that constitute the engagement body 13. Also, the second
When the elastically deformable body 18 is abnormally deformed, the detection device 20 operates. Therefore, although a detailed explanation will be omitted, it is clear that the same effects as the embodiments shown in FIGS. 4 to 6 and 7 can be obtained in this embodiment as well. As explained above, the present invention provides an arrangement in which engaging elements are provided on both sides of an engaging body and engage with the engaging body by sandwiching the engaging element.
An elastically deformable body is provided corresponding to each of the engaging bodies and is configured to be elastically deformable when the engaging body and the engager engage, and the engaging body and the engager are engaged through the elastic deformation of the elastically deformable body. By aligning them, the basket door and the Hataba door were made to be engaged. This makes it possible to reduce noise generation even when the speed at which the engaging body and the engaging element engage is high, and therefore, the operation of the landing door driven by the door driving machine through the car door can be reduced. The object of the present invention is to realize a door engaging device that can shorten the non-control distance, reduce sound generation at the start of engagement, and provide an elevator door opening/closing device with excellent opening/closing characteristics.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional plan view of the main part of the elevator door opening/closing device showing a conventional elevator door engagement device, Fig. 2 is a front view of the main part on the car side of Fig. 1, and Fig. 3 is the same as Fig. 1. 4 is a diagram showing the operating characteristics of the engagement device, and FIG. 5 is a diagram showing an embodiment of the elevator door engagement device according to the present invention. 6 is an explanatory view of the operation of FIG. 5; FIG. 7 is an enlarged view of a portion corresponding to the plate portion of FIG. 5 showing another embodiment of the elevator door engagement device according to the present invention; FIG. 8 is also a diagram showing another embodiment of the present invention, and is a view corresponding to FIG. 3, FIG. 9 is an enlarged view of section K in FIG. 8, FIG. 10 is a plan view of FIG. 9 is an explanatory diagram of the operation of FIG. 9. 2...Cargo door, 4...Ikeba door, 1
1... Younger brother 1 engaging child, 12... 2nd engaging child,
13... Engaging body, 16... First elastic deformable body, 18... Second elastic deformable body, 20...
Detection device. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals. Younger brother l figure Tsutomu 2 figure 5 figure rare 4 figure 5 figure 6 figure collection? Figure younger brother 8 Figure 9 Aoi l0 Figure younger brother ll

Claims (1)

[Scope of Claims] 1. An engaging body attached to one of both the car door and the landing door, and the above-mentioned engagement body disposed on a member attached to the other of the two and displaced by a predetermined operation of the other. They are provided on both sides of the engaging body along the opening/closing direction of both of the engaging bodies, and when both of the engaging bodies are fully closed, the engaging body moves away from the engaging body, and when the other door moves a predetermined distance in the door opening direction, it dislocates and engages the engaging body. In the device having an engaging element that clamps and engages the combined body, in order to absorb the impact generated between the engaging body and the engaging element during the clamping and engaging operation, the engaging element or the engaging element is subjected to the impact. An engaging device for an elevator door, characterized in that an elastic deformable body is provided on either the engaging body or the engaging element to be displaced along the direction in which the movement occurs. 2. The elevator door engagement device according to claim 1, wherein the elastically deformable body is configured to be elastically deformable even after both the engaging body and the engaging element are engaged.