JP2930512B2 - Elevator doors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator door, and more particularly to an elevator door whose landing door is opened and closed in conjunction with the operation of a car door.

[0002]

2. Description of the Related Art Conventionally, in an elevator door that opens and closes a landing door in conjunction with a car door, first, at the time of opening and closing operation, first,
The locking mechanism of the landing door must be released. The lock mechanism includes a lock mechanism shown in FIGS. 10 and 11, and a lock mechanism using a so-called razor plate shown in FIG.

[0003] Of this, FIG. 10 (a), the left side view showing the former locking mechanism, landing doors 51 in the closed state, described later
Shows a state of being locked by locking plate 55. Also, FIG.
(B) shows a state of being locked plate 55 is unlocked.

FIG. 11 (a) shows a left side view of FIG. 10 (a), that is, a view seen from the car side, and FIG. 11 (b)
FIG. 11A shows a state in which the landing door 51 is being opened after the lock plate 55 is unlocked from the locked state of FIG.

In FIG. 10 and FIG. 11, when a car (not shown) is landed and the electromagnet 56 provided on the top of the car is excited, the movable rod 57 of the electromagnet 56 descends as shown by the arrow C. . Then, a substantially V-shaped lever 58 connected to the lower end of the movable rod 57 via a pin rotates counterclockwise as indicated by arrow D with the support shaft at the intermediate portion as a fulcrum. .

Along with the rotation of the lever 58, a trapezoidal pressing called a so-called bow is connected to the lower right end of the lever 58 via a pin, and the lower end is connected to the lower right end of the link 59 via a pin. The plate 60 translates rightward and upward as shown by the arrow E. As a result, the roller 53 at the lower end of the arm 54, which is provided vertically from the right end in FIG. 11A of the shaft 52, which is provided horizontally above the landing door 51 and whose end protrudes from the car frame into the hoistway, As shown by an arrow F in FIG. 10A , it is rotated counterclockwise about the shaft 52 as a fulcrum . By this rotation operation, the arm 54 and the lock plate 55 are pivoted about the shaft 52.
And rotate counterclockwise to the state shown in FIG.
As a result, the upper end of the lock plate 55 is separated from the end face of the landing door 51, and the landing door 51 is unlocked.

Therefore, when the car door (not shown) opens, the landing door 51 also starts to open rightward as shown in FIG. 11 (b) according to an engaging portion (not shown) provided on the car door.

In the elevator door thus constructed, the landing door can be unlocked before the car is completely landed by the vertically long pressing plate 60, and the vicinity of the center of gravity of the landing door is pushed. Therefore, the stability of both doors during the opening operation can be improved and the opening speed can be increased, so that the operating efficiency of a high-speed elevator installed in a high-rise building during a rush hour such as morning and evening can be improved.

Further, in the latter locking mechanism 64 using a razor plate shown in FIG. 12, a partial plan view at the time of landing on a car is shown in FIG.
12 (a) and FIG. 12 (a) showing a view taken in the direction of arrows GG.
As shown in FIG. 12D, the razor plate 62 of the car door enters between the roller 65a and the roller 67a provided at the upper part of the landing door 51, and moves to the right by the opening operation of the car door. b)
By pressing the left side of the roller 65a as shown in (e) of the HH sectional view of FIG. 12 (b), the landing door 51 is described below.
Unlock as indicated.

That is, when the razor plate 62 moves to the right in FIGS. 12 (a) and 12 (d) with the opening operation of the car door 61 ,
The roller 65a is pushed rightward by the razor plate 62, and by this pushing, the lever 65 rotates clockwise about the axis below the roller 65a as a fulcrum. Left arm of the lever 65 by the rotation operation times upward as shown in FIG. 12 (e)
The locking mechanism 64 is unlocked by being separated from the catch 66 fixed to the building structure .

When the car door 61 further opens, the landing door 51 also moves.
Move to the right and catch the end of lever 67 opposite roller 67a
When the lever 67 is disengaged from the roller 66 and the lever 67 rotates clockwise, the roller 67a of the lever 67 and the aforementioned roller 65a are razor-plated.
62 is sandwiched. The car door 61 is operated to open to be et al. In this state
Then, the landing door 51 is moved rightward, and the landing door 51 is opened . At this time , the safety tissue 63 provided on the outer surface of the car door 61 is exposed to about one third at the time of FIG.
(C) and FIG. 12 showing a JJ cross section of FIG. 12 (c).
As shown in (f), when the razor plate 62 is further sandwiched between the roller 67a and the roller 65a of the lever 67, most is exposed.

[0012]

However, in an elevator door having a locking mechanism as described above, in the former locking mechanism, the locking plate 55 has a shaft protruding from the end of the car into the hoistway. Because it is hanging at the end of 52, this lock plate
The installation work of 55 is dangerous and takes time,
The shaft 52 must also protrude into the hoistway to increase the hoistway opening width.

Further, since the sound of the pressing plate 60 hitting the rollers 53 is generated each time the car lands on each floor, it not only gives passengers discomfort and anxiety, but also transmits the inside of the building. There is also a risk of doing so.

On the other hand, in the case of an elevator door constituted by the latter locking mechanism shown in FIG. 12, FIGS.
As shown in FIG. 7, the razor plate 62 presses the roller 65a to rotate the lever 65, and the car door 61 is moved by the stroke for unlocking the arm at the left end of the lever 65 from the catch 66.
Because of the inter-end portions of the landing-door 51 results in a step K shown in FIG. 12 (C), the protruding width of Sefuteishu 63 is widened,
Not only divide design property loss as viewed from the inside of the car, the landing door 51, because the movement is pushed the upper by a razor plate 62, the stability is lowered, <br in helping to speed opening and closing of the door /> It becomes an obstacle.

It is an object of the present invention to provide an elevator door which can be opened and closed at a high speed with low noise without increasing the opening width of the hoistway.

[0016]

According to the first aspect of the present invention, there is provided a latch provided on a building side above a landing door ,
One end engages with the latch engagement part and the middle part is the upper part of the landing door
Door lock that is rotatably supported on the back of the landing door
The middle part is rotatably supported and one end is the other end of the door lock.
Lever connected with a connecting rod to the part, and up and down on the back of the landing door
Along the direction, connected to the other end of the lever
Directional movable first engagement member, and the first engagement member
The landing door is located opposite to the member with a gap in the lateral direction.
A second engaging member fixed to the back surface and an outer surface of the car door
Press at the lower end of the link that rotates when the car door is opened
And a lever interposing the first engagement member and the second engagement member.
This door lock is rotated by rotating the door lock via the connecting rod.
And an engagement mechanism for releasing engagement between the latch and the latch .

Further, the invention described in claim 2 is the first invention.
In the invention described in the above, the engagement mechanism is set at the lower end of the link
The second engaging portion is rotated when the portion is pressed and one end portion is used as a fulcrum.
A first link for pressing the material, and one end connected to the first link
Parts are connected and the intermediate part is used as a fulcrum by the rotation operation of the first link.
Then, the other end moves to the first link side and the first engagement member is
It is characterized by comprising a second link that is pressed and moved .

According to a third aspect of the present invention, in the first aspect of the present invention, the engaging mechanism comprises an intermediate portion rotatably provided on the shaft.
The one end is opposed to the first engagement member and the other end is the second engagement member.
Rotational movement due to pressing by the lower end of the link facing the engaging member
Make both ends outside the first engagement member and the second engagement member
It is characterized in that it is constituted by a lever that is held between the levers .

[0019]

According to the first and second aspects of the present invention, the landing door is connected to the first and second links by the first link and the second link .
The first and second engagement members are driven while being held.

In the invention according to claim 3,
The landing door is provided with first and second engaging portions by both ends of the lever.
It is driven with the material clamped.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator door according to the present invention will be described below with reference to the drawings. FIG. 1A is a view showing an elevator door according to the present invention, in which the upper half of a closed car door is viewed from the landing side, and FIG. 1B is a car shown in FIG. 1A. It is a figure which shows a door in an open state. FIG. 2 is similar to FIG.
It is an enlarged detailed view at the time of a door closing of the engaging mechanism 11B attached to the opposite side of the center part of the car door 12B shown by (a) and (b). Incidentally, the engagement device <br/> structure 11A which is attached to the car door 12A side will be omitted because it is the engagement mechanism 11B symmetrical structure of the right.

In FIGS. 1 (a) and 1 (b), symmetrically manufactured car doors 12A and 12B are provided at the center of a rail 2 which is provided laterally above the car frame 1. Is movably suspended via a pair of rollers 3 attached to the upper end of the roller. The lower ends of the car doors 12A and 12B are loosely fitted to a sill (not shown) provided at a lower portion of the car via a guide shoe (not shown).

[0023] The central upper face of the upper to be laterally disposed a beam 1a of the rail 2 of the car frame 1, the door motor 5 is the door motor 5
The central portion of the link lever 4 is inserted and fixed to the output shaft of the speed reducer (not shown).

At the left end of the link lever 4, a rod 6
The right end of A is connected to a pin via a bearing, and this rod 6
The left end of the A, the upper end of the link 8A is connected through a pin and bearing. This link 8A has a beam 1
the bottom of the vertically have been supported 7a from a via a support shaft 7A times
Is rolling freely supported, the lower end of the link 8A, the engaging mechanism 11A as described above attached to the opposite side of the central portion of the car door 12A
Is connected to the short link 9 via a pin whose details are omitted.

On the other hand, the right end of the link lever 4 is connected to the left end of a rod 6B of the same product as the rod 6A via a pin and a bearing, and the right end of the rod 6B is connected to the upper end of a link 8B of the same product as the link 8A. There has been connected through a pin and bearing. The link 8B has a middle upper portion swingably supported via a support shaft 7B at a lower portion of a support 7b suspended from the beam 1a, and a lower end of the link 8B is provided on a side opposite to a central portion of the car door 12B. It is connected to the short link 9 of the attached engaging mechanism 11B via a pin which is not shown in detail.

In FIG. 2, a mounting base of the engagement mechanism 11B is shown.
11b is fixed by welding to the outer surface of the car door 12B 4
It is fixed to a book stud 11c via a nut. A stepped pin 13A is provided through the lower end of the mounting base 11b, and the lower end of an engaging lever 14 is rotatably connected to the stepped pin 13A via a bearing press-fitted into the stepped pin 13A. Have been. An upper portion of the engaging lever 14, either side of FIG. 2
When viewed from above, it is bent in a substantially Z-shape, and the upper end protrudes upward in the paper of FIG. 2 and is bent in a direction parallel to the paper .

A stepped pin 13B is provided through the center of the left side of the mounting base 11b, and the stepped pin 13B is engaged with an engagement lever via a bearing ( not shown) press-fitted into the stepped pin 13B.
16 are rotatably connected. The upper portion of the engagement lever 16 is bent substantially in a Z-shape when viewed from the side in FIG. 2, similarly to the engagement lever 14 on the right side, and the upper end protrudes upward in FIG.

A stepped pin 13D is provided at an intermediate portion of the engagement lever 14.
The right end of a link 17 is connected to the stepped pin 13D, and a roller 19 is mounted via a bearing. A stepped pin is provided at the upper end of the engagement lever 14, and the stepped pin is provided with a hard rubber roller via a bearing.
20 are installed.

A stepped pin 13E is provided at the lower end of the engagement lever 16, and the left end of the link 17 is connected to the stepped pin 13E. A stepped pin is provided at the upper end of the engagement lever 16, and a roller 21 identical to the roller 20 is attached to the stepped pin via a bearing.

The lower end of a tightly wound coil spring 18 is locked to the upper right side of the engaging lever 14, and the upper end of the coil spring 18 is fixed to a substantially L-shaped fixture fixed to the upper right side of the mounting base 11b. It is locked by a through hole (not shown) formed in 15,
The coil spring 18 is slightly tensioned.

A stepped pin 13C extends through the center of the right side of the mounting base 11b, and the lower end of the short link 9 is connected to the stepped pin 13C via a bearing (not shown). At the upper part of the short link 9, a stepped pin 8a penetrates,
The lower end of the link 8B is connected to the stepped pin 8a via a bearing. At the lower part of the short link 9, the upper part of the cam plate 10 is fixed by three bolts, and at the lower end of the cam plate 10, a wavy cam surface is formed. The roller 19 is pressed.

In the engaging mechanism 11B thus configured, the operation described later is performed in accordance with the operation of the link 8B.
When the door motor 5 shown in FIG. 1A rotates counterclockwise as shown by arrow A , the link lever 4 also rotates counterclockwise , and accordingly , the left and right rods 6A and 6B.
Are attracted to each other by a link 4, according to this operation, the link 8A, 8B supporting shaft 7A, 7B as a fulcrum <br/> Te link 8A is in a clockwise direction, link 8B is counterclockwise
Upon rotation , the lower end opens outward as shown in FIG.

Next, FIG. 3 (a) is a view of the upper half of the landing door of the elevator door of the present invention in a closed state as viewed from the car side, and FIG. 3 (b) is shown in FIG. 3 (a). It is a figure which shows the landing door which opened. FIG. 4 shows a lock mechanism attached to the opposite side of the center of the landing door 24B shown in FIGS. 3 (a) and 3 (b).
It is an enlarged detail figure at the time of the door closing of 29B. The landing door 24A
The lock mechanism 29A attached to the side has a symmetrical structure with the lock mechanism 29B on the right side, and thus the description is omitted.

3 (a) and 3 (b), the landing is moved up and down.
A header case 22 is provided horizontally on the road wall, and a rail 23 is provided horizontally below the header case 22 . In the center of the rail 23, landing doors 24A, 24 which are symmetrically manufactured.
B is movably suspended via a pair of rollers 24a, 24b attached to the upper ends of the landing doors 24A, 24B. The lower ends of these landing doors 24A and 24B are loosely fitted via a guide shoe (not shown) on a threshold (not shown) provided at the lower part of the landing.

In FIGS. 3 and 4 , a substantially mountain-shaped latch 32 is provided at the center of the rail 23 as a building structure.
Is fixed horizontally to the rule 23 . At the upper ends of the landing doors 24A and 24B, door locks 31 are provided symmetrically beside the latches 32, and these door locks 31 are provided via shafts 33 provided through the center of the door locks 31. the landing door 24A, times to 24B
Rollably supported. Opposite sides of a pair of door locks 31
In the closed state of the landing door shown in FIGS. 3A and 4, the pawls engage with the concave portions at both ends of the latch 32, and the landing doors 24 </ b> A, 24 </ b> A
B is locked.

In FIG. 4, the opposite side of the door lock 31 is shown.
At the end, the upper end of the bent formed fitting 30a is connected through a pin 31a in an L-shape when viewed from the side in FIG. 4. The lower end of the connection fitting 30a is penetrated by an external thread of the upper end of the connecting rod 30, and is fixed by a nut screwed to the external thread.

At the lower end of the connecting rod 30, a connecting fitting 30a identical to the connecting fitting 30a connected to the upper end is inserted symmetrically with the upper connecting fitting 30a, and a male screw formed at the lower end of the connecting rod 30 is formed. It is fixed with a nut screwed into the part.

A pair of pins 27c are provided on the left side of the intermediate portion on the back surface of the landing door 24B with a vertical interval, and the upper pin 27c is provided with an intermediate portion of the substantially letter-shaped lever 27. Times
It is rotatably connected, and a short lever 28 is attached to the lower pin 27c.
Are rotatably connected at their lower ends. The right end of the lever 27 is connected to the lower end of the lower connection fitting 30a via a connection pin 27a. A pin 27b is rotatably inserted into the upper end of the lever 27, and a pin 27b is also rotatably inserted into the upper end of the lever. A strip-shaped engaging plate 26 is connected to the upper and lower pins 27b via an L-shaped plate 27d fixed to the left side . This engaging plate 26 is positioned on the landing door 24B surface.
To stand upright and extend vertically
Have been.

Further, on the back surface of the landing door 24B, an engagement plate 26 is provided.
Right almost length identical with the engaging plate 26 of support bracket 34 formed by bending is the scene multiply the bent portion of the one L-shaped
It is fixed in an upright state . This support bracket
The upper end 34 is formed with a notch hole of square, this
The lever 27 is inserted into the notch so that it can move up and down.
I have . An engagement plate 25 having substantially the same length as the engagement plate 26 is fixed to the left side surface of the support fitting 34 in parallel with the engagement plate 26. Under direction of the upper pin 27b, the stopper 29 is fixed at an angle,
The upper end of the stopper 29 contacts the lower surface of the left side of the lever 27 to limit the rotation of the lever 28 . Note that FIG.
(A), also locking mechanism 29 A attached to the left side of the landing doors 24A shown (b), the is exactly symmetrical structure and locking mechanism 29 B shown in FIG.

Next, the operation of the thus configured elevator door will be described. A basket (not shown) arrives on the destination floor
On the floor, as shown in Fig. 5, the outer surfaces of the car doors 12A and 12B
Rollers 20, 21 provided on the sides of the landing doors 24A, 24B
Positioned so as to sandwich the engagement plates 25 and 26 provided on the inner surface, respectively.
I do. Then, the closed cage doors 12A and 12A shown in FIG.
To open the B, arrows door motor 5 in FIGS. 1 (a)
When driven in the counterclockwise direction as shown by the mark A , the rod 6
A is the right in FIG. 1A, and the rod 6B is the right in FIG.
In swung to the left via the link lever 4, the upper end to the right of the link 8A These rocking motion, also the upper end of the link 8B are respectively rotate the support shaft 7A to the left and 7B as a fulcrum.

[0041] The link 8A, Te <br/> by the rotation of 8B, the link 8A, the lower portion of 8B is moved outwardly as shown in FIG. 1 (b), these links 8A, 8B lower end of the Each of the engaging mechanisms 11 connected by the stepped pins 13C shown in FIG.
A, 11B mounting base 11b is driven outward, and each car door
12A and 12B are also opened outward. At the beginning of the opening operation of the car doors 12A, 12B, the locking mechanisms 29A, 29B provided on the landing doors 24A, 24B are also unlocked as described later, and the locking mechanisms 11A, 11B of the respective car doors 12A, 12B. Accordingly, the opening operation is performed as described below.

First, when the link 8B of the car door 12B rotates counterclockwise, the short link 9 connected to the lower end of the link 8B via the pin 8a shown in FIG. 2 rotates clockwise about the stepped pin 13C. To rotate . Then, the cam plate 10 whose upper end is fixed to the lower part of the short link 9 also rotates clockwise,
The right side surface of the roller 19 is pushed by the arc-shaped convex portion 10a formed at the lower end of the cam plate 10, and the engaging lever 14 rotates counterclockwise about the stepped pin 13A at the lower end.

[0043] simultaneously with rotation of the engagement lever 14, links 17 more right end is coupled to the stepped pin 13D to move to the left in FIG. 2, with the move of the link 17, the link 17
The engagement lever 16 whose lower end is connected to the left end of the first through a stepped pin 13E rotates clockwise around the stepped pin 13B. By the rotation of the opposite directions of the engaging lever 14, rollers 20 and 21 rotatably mounted on the upper end of the engaging lever 14, 16 moves in a direction approaching phase. Sand
Chi, roller 20 as shown in FIG. 5, come into contact with the right side surface center portion of the engaging plate 25 which is Tate設on the rear surface of the landing doors 24B, Similarly, the roller 21, the left engaging plate 26 The engaging plate 26 is pressed against the surface and is moved in the lateral direction so as to contact the engaging plate 26 with the engaging plate 25.

[0044] Then by the contact of the engaging plate 26 of the roller 21 as shown in FIG. 4, the lever 27 is rotated clockwise by <br/> pins 27c and the fulcrum, the rotation of the lever 27 Thus, the connection fitting 30a having the lower end connected to the right end of the lever 27 via the connection pin 27a swings obliquely downward. Then
The connecting rod 30 connected to the connecting fitting 30a and the connecting fitting 30a connected to the upper end of the connecting rod 30 also move down, and the door lock 31 having the right end connected to the upper end of the connecting fitting 30a via a pin 31a. It is Ru <br/> be rotated clockwise fulcrum shaft 33. With this rotation operation , the left end of the door lock 31 moves upward, and the lock with the latch 32 attached to the lower side is unlocked.

Further, in FIG. 2, the distance between the roller 20 and the stepped pin 13D and the distance between the stepped pin 13D and the stepped pin 13D are determined.
For the ratio of the distance between D , the roller 21 and the stepped pin 13B ,
The ratio between the shoulder pin 13B and shoulder pin 13E has a large, since amount of movement of the roller 21 to move the amount of the roller 20 is large, the landing doors 24B are pressed by the roller 21, this When the swing of the roller 21 is completed, the roller catches up with the car door and becomes the same position as described later with reference to FIG.

As a result, the links 8A and 8B shown in FIG.
The counterclockwise rotation causes the car doors 12A and 12B to open and the landing doors 24A and 24B to open with the engagement plates 25 and 26 held between the rollers 20 and 21.

The operation of the locking mechanism 11B of when the door opening operation of the elevator as described above, and more will be described in FIG. 5 the opening operation condition of the car door 12B and the landing door 24B. FIG. 5A shows a state at the time of landing on the car, and shows a state before the door motor is driven.
4B shows a state in which the door motor is driven to open the car door 12B slightly, the roller 21 comes into contact with the engagement plate 26, and the door lock 31 shown in the upper part of FIG. 4 is unlocked. Further, (c) shows a state where the engaging plates 25 and 26 are sandwiched between the rollers 20 and 21 and the landing door 24B is arranged at the same position as the car door 12B.

In the elevator door thus constructed, the locking mechanism of the door does not protrude out of the car, so that the assembling work can be performed safely and easily, and the opening width of the hoistway is reduced. be able to. Further, since the step K between the car door and the landing door shown in FIG. 12 (c) in the early stage of the opening operation of the door can be reduced, the width of pulling out the safety shoe can be reduced, and the design seen from the inside of the car can be improved. Can be raised. Further, since the engaging position between the car door and the landing door can be provided near the center of gravity of both, the opening and closing operation can be performed smoothly, and the opening and closing speed can be increased. In addition, the roller in the implantation process of the car
Since the lock mechanism can be unlocked regardless of the vertical position when 21 comes within the vertical range of the engagement plate 26, it is not only advantageous at the time of maintenance and inspection, but also the timing of starting the door opening operation. Can be accelerated (so-called running open).

Next, FIG. 6 is a partially detailed view showing an embodiment of an elevator door according to the third aspect of the present invention, and corresponds to FIG. 2 described above. In FIG. 6, the engagement plate
The movement of the rollers 20, 21 holding the 25, 26 is controlled by one lever 31.
It is made to do in. The central part of a lever-shaped lever 31 is rotatably mounted on a stepped pin 36A mounted on the lower right side of the mounting base 11d via a bearing (not shown). Above the stepped pin 36A in the middle of the lever 31, a stepped pin 13D is provided so as to penetrate therethrough.
, A roller 19 is inserted via a bearing (not shown). The roller 20 is attached to the upper end of the lever 31 via a bearing on a stepped pin (not shown), and the roller 21 is also attached to the lower end of the lever 31.

[0050] In the door of the thus constituted elevator, similarly to the engaging mechanism shown in FIG. 2, the clockwise rotation of the cam plate 10, the roller 19 is pressed, lever
31 rotates counterclockwise.

Therefore, also in the elevator door constructed as described above, the engagement plate 25 is pressed by the upper roller 20 and the lower roller 21 is engaged by the counterclockwise rotation of the lever 31. Pressing the plywood 26 up and down opens and closes the landing door with the car door, similarly to the engagement mechanism 11B shown in FIG. In this case, only one lever 31 is required, and the number of stepped pins can be reduced, so that there is an advantage that the structure is simplified.

FIG. 7 is a partially detailed view showing another embodiment of the elevator door according to the present invention, which is different from FIGS. 2 and 6.
FIG. In FIG. 7, the engagement plates 25 and 26 are
I will hold it with two rollers 20, 20A, 21, 21A respectively
It is configured as follows. Installing on the outer surface of the car door 11B
On the right side of the center of the mounting base 11e, a stepped pin 36B is provided.
The central portion of a lever-shaped engaging lever 32 is rotatably connected to the stepped pin 36B via a bearing. Upper portion of the engaging lever 32 is not Tei shown,
Like the engaging lever 14 shown in FIG. 2, it is bent in a substantially Z-shape, and the upper end protrudes upward in FIG.

A stepped pin 36C is provided below the mounting base 11e.
The middle upper portion of the engagement lever 35 is rotatably connected to the stepped pin 36C via a bearing.
Bottom of the engaging lever 35 is not Tei illustrated, is bent into a substantially Z-shaped, lower end protrudes into the paper upward. A roller 20A is attached to a lower end of the lever 35 via a stepped pin.

A stepped pin is fixed to the upper end of the engaging lever 35, and the right end of the link 33B is connected to the stepped pin. The left end of the link 33B is connected to the engaging lever via a stepped screw. It is connected to the lower center of 32. A stepped pin is attached to a lower end of the engagement lever 32, and a roller 21A is attached to the stepped pin via a bearing.

The stepped pin 13 is provided at the upper middle portion of the engagement lever 32.
D is fixed, a right end of a link 17 is connected to the stepped pin 13D, and a roller 19 is mounted via a bearing. A stepped pin is attached to an upper end of the engagement lever 32, and a hard rubber material roller 20 is attached to the stepped pin via a bearing.

A stepped pin is provided on the upper left side of the mounting base 11b.
An intermediate lower portion of an engagement lever 16 is rotatably connected to the stepped pin 13B via a bearing. Upper portion of the engaging lever 16 is not Tei illustrated, is bent into a substantially Z-shaped, upper end protrudes to the paper upward.

[0057] the lower end of the engaging lever 16, shoulder pin 13E is fixed to the stepped pin 13E, the left end of the link 17 is connected. A stepped pin is attached to the upper end of the engagement lever 16, and a hard rubber roller 21 is attached to the stepped pin via a bearing.

A lower end of a tightly wound coil spring 18 is locked to the upper right side of the upper end of the engagement lever 32. The upper end of the coil spring 18 is fixed to a substantially L-shaped fixture mounted on the upper end of the mounting base 11e. It is locked by a through hole (not shown) formed in 15,
The coil spring 18 is slightly tensioned.

A stepped pin is provided on the upper right side of the mounting base 11e.
The lower end of the short link 9 is connected to the stepped pin 13C, and the upper portion of the short link 9 is connected to the link 8B via a bearing (not shown) press-fitted to the stepped pin 8a. It is connected to the lower end. A cam plate 10 is fixed to a lower portion of the short link 9, and a cam surface is formed at a lower end of the cam plate 10.
It is in contact with 19.

In the elevator door having the engagement mechanism 11D as described above, when the lower portion of the link 8B rotates counterclockwise as shown by the arrow K, the short link connected via the stepped pin 8a. 9 also uses the stepped pin 13C as a fulcrum
Rotates clockwise, rotates clockwise fulcrum also stepped pin 13C cam plate 10.

The rotation of the cam plate 10 causes the roller
19 is pressed by the cam surface of the cam plate 10, and the lever 32 is a stepped pin.
Rotate counterclockwise around 36B. Then, the upper half of the lever 32 rotates counterclockwise to the left, and the lower half of the lever 32 also rotates right. With the rotation of this lever 32, the link
The engagement lever 16 swings clockwise via the link 17, and the engagement lever 35 also rotates clockwise via the link 33B.

The lever 32 and the engagement levers 16, 35
With rotation , these levers 32 and engagement levers 16, 35
Rollers 20, 20A, 21, 21A attached to the ends of
It moves in the direction of the engagement plates 25 and 26 as shown by the arrow, and tightens these engagement plates 25 and 26 from the outside.

In the elevator door having the engagement mechanism as described above, since the engagement plates 25 and 26 are sandwiched between the upper and lower points, the car door and the landing are integrated, and the swing when the door is opened and closed is eliminated. This has the advantage of smooth operation.

FIG. 8 is a partial detailed view showing still another embodiment of the elevator door according to the present invention.
8 is a front view of FIG. 8 and corresponds to FIGS. 2, 6 and 7. FIG.

In FIGS. 8 and 9, a stepped pin 13B is mounted on the right side of the center of the mounting base 11f mounted on the outer side surface of the car door. The lower part of the engagement lever 16A is rotatably mounted. In the middle of this engagement lever 16A,
A roller 19A is mounted via a stepped pin, and a right side surface of the roller 19A is in contact with a cam surface formed at a lower end of a cam plate 10A fixed to a lower end of the short link 9A.

A stepped pin 13G is provided at the upper end of the engagement lever 16A.
And a roller 21 made of hard rubber is attached via a bearing,
The right end of the coil spring 18 locked to the upper left side of the engagement lever 16A is a metal fitting 38 fixed to the right upper end of the mounting base 11f.
It is locked at the lower part. A screw portion formed on one side of the stopper 37 is fixed to the upper part of the metal fitting 38, and the stopper 37
The head of 37 is in contact with the upper left surface of the short link 9A.

A stepped pin 13E is provided at the lower end of the engagement lever 16A.
And the right end of the link 17 is connected via a bearing press-fitted to the stepped pin, and the left end of the link 17 is connected to the mounting base 11f.
Via a bearing press-fitted into a stepped pin 13 penetrating below the engaging lever 14A provided at the left end of the
Called 14A.

A stepped pin 13A is provided at the lower end of the engagement lever 14A via a bearing, and the stepped pin 13A is fixed to the lower left side of the lower end of the mounting base 11f. Engagement lever
A stepped pin 13F is provided at the upper end of 14A, and a hard rubber roller 20 is connected to the tip of the stepped pin 13F via a bearing.
Is attached.

[0069] In the thus configured engagement mechanism, the cam plate 10A is rotating in the clockwise direction in accordance with the opening operation of the car door
When rotated , the roller 19A is pushed to the left and the engagement lever 16A
Rotates counterclockwise stepped pin 13B to the axis. Due to this rotation , the roller attached to the upper end of the engagement lever 16A also swings to the left, and the link 17 connected to the lower end of the engagement lever 16A swings to the right.

By the swing of the link 17 to the right, the left engagement lever 14A is rotated clockwise about the stepped pin 13A as a pivot.
Rotates, the roller 20 attached to the upper end of the engaging lever 14A is moved to the right.

[0071] Moving of the roller 20, shoulder pin 13D and shoulder pin 13F for spacing shoulder pin 13A and the shoulder pin 13D
Is large as shown in FIG.
The moving speed and the moving distance of the roller 21 are much larger than those of the roller 21 on the right side. Therefore, in this case, FIG. 2, compared to the engaging mechanism shown in FIGS. 6 and 7, the time required for tracking of the landing doors of the car door leading to FIG. 5 (c) from FIGS. 5 (a) It is possible to shorten the opening and closing time of the car door and further improve the design.

[0072]

As described above, according to the first aspect of the present invention,
A latch provided on the building side above the landing door and this latch
One end engages with the engaging part of the switch, and the middle part turns to the upper part of the landing door.
Roller-mounted door lock and rotation on the back of the landing door
The middle part is freely supported and one end is on the other end of the door lock.
Lever connected with a connecting rod and up and down on the back of the landing door
Is arranged along the other end of the lever and connected to the
And a first engagement member capable of moving the first engagement member
The rear side of the landing door, which is placed opposite to with a gap in the lateral direction
And a second engaging member fixed to the car door provided on an outer surface of the car door
Pressed at the lower end of the rotating link by opening the cage door
Connecting the first engagement member and the second engagement member to the lever
Rotate the door lock through the stick to
By providing an engaging mechanism for disengaging the pitch, the opening motion of the landing doors first and the second engagement member is driven in a state pinched
Since it created, without widening the frontage width of the hoistway, it is possible to obtain the elevator that can be opened and closed in a low noise and high speed door.

According to the second aspect of the present invention, the contract
The intermediate mechanism pushes the engagement mechanism according to claim 1 at the lower end of the link.
Is pressed and rotated around one end to push the second engagement member.
A first link to be pressed and one end connected to the first link.
And the rotation of the first link causes the intermediate portion to serve as a fulcrum.
The end moves toward the first link and presses the first engagement member.
The landing door by configuring the second link to move
First, first by a second link, since the second engagement member is driven in a state挾<br/> lifting, without widening the frontage width of the hoistway, it is opened and closed in a low noise and high speed The elevator door which can be obtained can be obtained.

According to the third aspect of the present invention,
The intermediate mechanism is rotatably supported by the intermediate mechanism according to claim 1.
And one end is opposed to the first engagement member and the other end is connected to the second engagement member.
Rotational movement by pressing with the lower end of the link facing the joint member
Both ends are outside the first engagement member and the second engagement member
By configuring in lever et holding, lever the landing doors
Since the first and second engaging members can be driven in a state of being sandwiched by both ends , the elevator can be opened and closed at a low noise and at a high speed without reducing the number of parts and increasing the width of the hoistway. You can get the door.

[Brief description of the drawings]

FIG. 1A is a view showing one embodiment of an elevator door according to the present invention, showing a state in which a car door is closed. (B)
Indicates that the car door is also open.

FIG. 2 is an enlarged detailed view showing a main part of FIG. 1;

FIG. 3A is a view showing an embodiment of an elevator door according to the present invention, in which a landing door is closed. (B)
Indicates that the landing door is also open.

FIG. 4 is a partially enlarged detailed view of FIG. 3;

FIG. 5 (a) is an explanatory view showing the operation of the elevator door of the present invention, and is a partial plan view showing the door when the car is landing on the floor.
(B) is explanatory drawing which shows the effect | action different from (a) of the door of the elevator of this invention, Comprising: The partial top view which shows when a landing door is unlocked.
(C) is an explanatory view showing an operation different from (a) and (b) of the elevator of the present invention, and is a partial plan view showing a state where a landing door is driven by a car door. (D) is a front view of (a), (e) is a front view of (b), (f) is a front view of (c).

FIG. 6 is a partially enlarged detailed view showing another embodiment of the elevator door of the present invention.

FIG. 7 is a partially enlarged detailed view showing another embodiment of the elevator door according to the present invention.

FIG. 8 is a partially enlarged plan view showing still another embodiment of the elevator door according to the present invention.

FIG. 9 is a front view of FIG. 8;

FIG. 10A is a side view showing an example of a locked portion of a conventional elevator door, showing a locked state. (B)
The partial enlarged side view showing the state where the lock part of the door of the conventional elevator was unlocked.

11A is a left side view of FIG. 10A, FIG.
10 is a left side view of FIG.

FIG. 12 (a) is an explanatory view showing the operation of a conventional elevator door, and is a partial plan view showing the door when the car is landing on the floor.
(B) is explanatory drawing which shows the effect | action different from (a) of the door of the conventional elevator, and is a partial plan view in which a landing door is unlocked.
(C) is an explanatory view showing an operation different from (a) and (b) of the door of the conventional elevator, and is a partial plan view showing a state where a landing door is driven by a car door. (D) is a front view of (a), (e) is a front view of (b), (f) is a front view of (c).

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cage frame, 2,23 ... Rail, 3 ... Roller, 4 ... Link valley, 5 ... Door motor, 6A, 6B ... Rod, 7A,
7B: support shaft, 8A, 8B, 17: link, 9: short link,
10, 10A ... cam plate, 11A, 11B, 11C, 11D , 11E ... engagement
Joint mechanism, 12A, 12B ... basket door, 13A, 13B, 13C, 13
D, 13E, 13F, 13G: Stepped pins, 14, 14A, 16, 16A
... engagement lever, 18 ... coil spring, 19, 20, 21 ... roller,
22 ... header case, 24A, 24B ... landing door, 25, 26 ... engaging plate, 27, 32 ... lever, 29A, 29B ... locking mechanism, 30 ... connecting rod, 31 ... door lock, 32 ... latch.

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-58-172187 (JP, A) JP-A 62-183687 (JP, U) JP-A 60-137772 (JP, U) JP-A 55-172 2874 (JP, U) JP 49-20420 (JP, B1) (58) Fields investigated (Int. Cl. ⁶ , DB name) B66B 13/12 B66B 13/18

Claims (3)

(57) [Claims] Claims: 1. A rack provided on a building side above a landing door.
And one end engages with the engagement portion of the latch, and the middle
A door lock rotatably supported at the top of the landing door,
An intermediate portion is rotatably supported on the back surface of the landing door and one end portion
Is connected to the other end of the door lock by a connecting rod.
And arranged vertically along the back of the landing door,
The other end of the lever is connected to the
A gap between the first engagement member and the first engagement member in the lateral direction.
Placed and opposed to each other and fixed to the back of the landing door
A second engaging member and the car provided on an outer surface of the car door;
Pressed by the lower end of the rotating link by opening the door,
Connected to the lever with the first engaging member and the second engaging member interposed therebetween
The door lock is rotated by rotating the door lock via a rod.
An elevator door comprising: a latch; and an engagement mechanism for disengaging the latch . 2. The method according to claim 1, wherein the engaging mechanism is provided at a lower end of the link.
The intervening portion is pressed and rotates about one end as a fulcrum, and the second
A first link for pressing the engagement member, and the first link
Is connected at one end to the intermediate position by the rotation of the first link.
Before the other end moves to the first link side with the
2. An elevator door according to claim 1, wherein said second door is configured to press and move said first engagement member . 3. An engagement mechanism according to claim 1, wherein the intermediate portion is rotatable.
One end is opposed to the first engagement member and the other end is front.
Pressing by the lower end of the link facing the second engaging member
And the both ends are in contact with the first engagement member and the second engagement member.
2. An elevator door according to claim 1, wherein said engaging member is constituted by a lever which clamps said engaging member from outside .