JPH07100586B2 - Lifting cage retracting mechanism for vertical transport device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical transfer device, and more particularly, it is provided with a plurality of cages in each of an up passage and a down passage.
TECHNICAL FIELD The present invention relates to a lift cage retracting mechanism for an elevator, which is a vertical transfer device for switching the cages to the other passage by the upper switching device and the lower switching device so as to circulate the cages.

[0002]

2. Description of the Related Art The applicant of the present invention relates to a vertical conveying device in Japanese Patent Application No.
No. 83728 proposes a linear motor drive elevator.

[0003]

The above-mentioned proposal is effective for circulating the cage to the up and down passage by the linear motor drive, but when the cage that is ascending in the up passage becomes unable to ascend due to a failure. , There is a problem that the circulation operation of all cages is stopped.

An object of the present invention is to provide an ascending cage retracting mechanism for a vertical transfer device that retracts a failed cage and continues the circulation operation of the remaining cages when the ascending cage becomes unable to ascend. There is.

[0005]

According to the present invention, a plurality of cages are provided in the ascending passage and the descending passage, respectively, and the cages are switched to the other passage by the upper switching device and the lower switching device for circulation operation. In the vertical transport device,
A grasped portion is provided on the top surface of the cage, a swivel base is provided in the upper switching device, a support shaft erected on the swivel base, an arm that is vertically movable on the support shaft via an elevating drive device, and the arm. Further, a grab shaft that is rotatable via a rotating device and a grab that grips the gripped portion at the lower end of the grab shaft are provided, and a retreat space is provided within the swing range of the arm.

It is preferable that the retreat space is provided at the position where the arm for turning the cage of the ascending passage to switch the cage is rotated in the opposite direction, that is, at the side of the ascending passage, but at the side of the descending passage. Alternatively, both may be provided. It is also preferable to provide the bottom of the cage with a grab that holds the top of the ascending trailing cage.

[0007]

In the ascending cage retracting mechanism of the vertical conveying apparatus configured as described above, when a failure occurs in the ascending cage and it becomes impossible to ascend, the succeeding cage is raised and the defective cage is moved to the succeeding cage. connect. Then, the succeeding cage is raised to raise the faulty cage, and when the faulty cage reaches the top floor, the faulty cage is grasped by the grab of the upper switching device and the two cages are disconnected. Next, the faulty cage is lifted up, further rotated to the evacuation space side, the faulty cage is lowered to the upper evacuation space, and other cages are circulated.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3, a plurality of (3 in the illustrated example) cages 3a to 3c and cages 3d to 3f (indicated by reference numeral 3 hereinafter) are provided in the up passage 1 and the down passage 2. (Used) is guided by a pair of guide rails 5 and 5 and is housed so as to be able to move up and down, and is moved up and down by an elevator drive device (not shown).

Referring also to FIG. 8, for example, on the top surface of the cage 3a, a pair of brackets 7 and 7 which are extended and contracted by a cylinder (not shown) are provided at right angles to the door 4, and the extended brackets 7 and 7 are , Are connected to the cable plates 8 and 8 by insertion. The cable plates 8 and 8 are connected to one ends of hanging wire cables 9 and 9, respectively, and these wire cables 9 and 9 are hung down via a sheave block 10, and a counterweight 11a is connected to a lower end portion thereof. . Then, the other cages 3b to 3f are similarly configured.

The sheave block 10 is provided on the floor of the floor FT1 above the uppermost floor FT, and a part of the upper surface of the sheave block 10 is provided with an upper switching device, which will be described later in its entirety, by the reference numeral 20. Has been.

On the floor of the floor FB1 below the lowest floor FB, a lower switching cart 12 is provided so that it can travel on rails 13 and 13. A support shaft 14 of the carriage 12 is provided with a vertically movable arm 15, and an end of the arm 15 is provided with a rotatable support base 16 for supporting the bottom of the cage 3.
Is provided.

With this structure, the uppermost floor FT is raised.
After reaching the position 3a1 by the upper switching device 20, the cage 3a is reached to the position 3a1 and then swung to the position 3a2 and lowered to switch to the down path 2. In addition, after lowering the cage 3f reaching the lowest floor FB to the position 3f1 by the lower switching carriage 12, the carriage 12 travels and moves to the position 3f2.
The cages 3a to 3f are circulated through the up and down passages 1 and 2 by rotating the cage 3a to 3f by rotating the cage 3a to 3f.

In FIGS. 4 and 5, the upper switching device 20.
A swivel base 21 is provided on the sheave block 21, and the swivel base 21 is fixed to a part of the upper surface of the sheave block 10. On the swivel base 21, a prismatic base column 23 having an upper part connected by a connecting member 22 and a support shaft 24 are erected. An arm 25 is provided on the support shaft 24 so as to be movable up and down. A grab shaft 27 rotated by a rotating cylinder 26 and a rotating arm 27a is vertically provided at a tip end portion of the arm 25, and a lower end of the grab shaft 27 is provided so as to project on a top surface of the cage 3. A grab 28 for gripping the gripped portions 29, 29 is provided.

On the other hand, the upper and lower parts of the arm 25 are guided to the four surfaces of the support shaft 24 by two pairs of guide rollers 30 ... and 31. 32, 32 are provided. One ends of chains 33, 33 are fastened to the stoppers 32, 32, and the chains 33 are attached to the sprocket 3 provided on the connecting member 22.
4, 34, cylinders 3 standing upright on both lower sides of the base pillar
7, 37 upper sprocket 35, 35 and base 23
Is wound around sprockets 36, 36 suspended from the upper part of the. When these members 32 to 37 constitute an elevating and lowering drive device, and the grab 28 holds the gripped portion 29 and retracts the cylinders 37 and 37, the arm 25 moves up to the position 25a and the cage 3a moves to the position 3a1. It is designed to be pulled up.

Further, the arm 25 is swung from the position A to the position B, the cylinder 26 is extended, and the grab shaft 27 is rotated 90 degrees in the clockwise direction.
The cage 1 is switched to the position 3a2 of the downward passage 2 and the doors 4 and 4 face each other and face outward. Further, the arm 25 can be rotated counterclockwise, for example, 90 degrees in the opposite direction to move the cage at the position 3a1 to the retracted position 3a3 in the upper retracted space S.

Next, with reference to FIG. 6 to FIG. 9, the manner of retracting the ascending cage will be described. When the five cages 3a to 3e circulate in the ascending and descending passages 1 and 2 and the second cage 3b in the ascending passage 1 becomes unable to ascend due to a failure in the lifting drive device (FIG. 6), As shown in FIG. 7, the cage 3
The passenger of b is lowered, and the following cage 3c is raised. Then, as shown in FIG. 8, the succeeding cage 3c is grasped and connected by the glove 40 provided on the bottom surface of the cage 3b,
C is raised to raise the cage 3b. Then, as shown in FIG. 9, when the cage 3b reaches the uppermost floor FT, the grab 28 of the upper switching device 20 is lowered to grip the cage 3b to release the connection of the grab 40, and the brackets 7 and 7 are connected to the cable plate 8. , Remove from 8. At this time, the cable plates 8 and 8 are locked to the lower edge of the sheave block 10. Therefore, after raising the cage 3b to the floor FT1,
As shown in FIG. 5, the arm 25 is rotated to the position C to move the cage to the position 3b1 of the upper retreat space S and lower it for repair. Therefore, the remaining cages 3a, 3c
3e can continue the circulation operation.

[0018]

Since the present invention is configured as described above, when a cage that is rising cannot be lifted due to a failure, the failed cage is evacuated to the upper evacuation space and the remaining cages are circulated. The service can be continued.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is a front view of FIG.

3 is a top view of FIG.

FIG. 4 is a side view showing an upper switching device.

5 is a top view of FIG.

FIG. 6 is a view showing a state where a defective cage is generated.

FIG. 7 is a drawing showing the next state of FIG. 6;

FIG. 8 is a perspective view showing a state in which a failed cage is connected to a succeeding cage.

FIG. 9 is a perspective view showing a state in which the faulty cage is retracted to the retracted space.

[Explanation of symbols]

 S ... Upper escape space 1 ... Upward passage 2 ... Downward passage 3a to 3f ... Cage 4 ... Door 5 ... Guide rail 7 ... Bracket 8 ... Cable plate 10 ... ..Sieve block 11 ... Counterweight 12 ... Lower switching cart 13 ... Rail 14 ... Support shaft 15 ... Arm 16 ... Support 20 ... Upper switching device 21 ... Swivel base 22 ... connecting member 23 ... base pillar 24 ... support shaft 25 ... arm 26 ... turning cylinder 27 ... grab shaft 27a ... turning arm 28 ... grab 29 ... Gripping part 30, 31 ... Guide roller 32 ... Stopper 34, 35, 36 ... Sprocket 37 ... Cylinder 40 ... Grab

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuyuki Matsui 1-2-7 Motoakakasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Yoshinori Matsunaga 1-2-7 Motokakasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. (72) Inventor Sadaaki Masuda 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Yoshinori Kitamura 1-2-7 Moto-Akasaka, Minato-ku, Tokyo No. within Kashima Construction Co., Ltd. (56) Reference JP-A-48-58542 (JP, A) JP-A-2-282178 (JP, A)

Claims (1)

[Claims] 1. A vertical transfer device having a plurality of cages in each of an ascending path and a descending path, wherein the cages are switched to the other path by an upper switching device and a lower switching device so that the cages circulate. The upper switching device has a swivel base, a support shaft erected on the swivel base, an arm that can move up and down on the support shaft via an elevating drive device, and a swing device for the arm. And a grab for gripping the gripped portion at the lower end of the grab shaft, and a retreat space is provided within the swing range of the arm. Evacuation mechanism.