JPH07100584B2 - Vertical transfer device upper switching mechanism - 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 conveying device, and more particularly, it has a plurality of cages in an ascending path and a descending path respectively, and the upper switching device and the lower switching device switch the cages to the other path for circulation operation. The present invention relates to an upper switching mechanism that switches an elevator cage, which is a vertical transport device, from an up passage to a down passage.

[0002]

2. Description of the Related Art Regarding a vertical conveying apparatus, the present applicant has proposed a linear motor drive elevator in Japanese Patent Application No. 3-83728.

[0003]

The above proposal is effective for circulating the cage to the up and down passages by the linear motor drive, but it cannot be applied to the conventional elevator having the counter weight.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an upper switching mechanism for a vertical transfer device which switches a cage equipped with a counterweight from an up passage to a down passage.

[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 so as to circulate. In the carrying device, a member to be grasped and a telescopic bracket are provided on the top surface of the cage, one end of the hanging wire cable is connected to a cable plate to which the bracket in the extended state is connected, and a sheave block of the cable is used. A counterweight is connected to the other end of the arm, a swivel base is provided on the upper switching device, a support shaft is erected on the swivel base, and an arm that is moved up and down by a lifting drive device is provided on the support shaft. Further, a grab shaft rotated by a rotating device is provided, and a grab for gripping the gripped member is provided at a lower end of the grab shaft.

Preferably, the cable plate is locked at the lower edge of the sheave block when the bracket is removed from the cable plate.

[0007]

In the upper transfer mechanism of the vertical conveyor constructed as described above, when the cage rises in the ascending path and the cable plate comes into contact with the lower edge of the sheave block to stop the cage, the grabbed member grips the member. To support the cage, remove the bracket from the cable plate, and actuate the elevator drive to raise the arm and lift the cage.
Then, while rotating the arm, the rotating cylinder is operated to rotate the cage, and the cage is moved to a predetermined position above the downward passage. Then, after lowering the arm to lower the cage into the downward passage, the bracket is inserted and connected to the cable plate to release the grip of the grab.

[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 expanded and contracted by a cylinder 6 are provided at right angles to the door 4, and the extended brackets 7 and 7 are It is insert-coupled to the cable plates 8, 8. 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 dolly 12 is provided with a vertically movable arm 15, and an end of the arm 15 is provided with a rotatable glove 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.

4 to 6, the upper switching device 2
0, a swivel base 21 is provided, and the swivel base 21 is fixedly provided on 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 that is rotated by a rotating cylinder 26 and a rotating arm 27a is vertically provided at the tip of the arm 25.
At the lower end of the grab shaft 27, a grab 28 for gripping the gripped portions 29, 29 protruding from the top surface of the cage 3 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.

Next, a mode of switching by the upper switching device 20 will be described with reference to FIGS. 7 to 11. Up passage 1
When the cage 3a reaches the top floor FT as shown in FIG. 7, the passenger is lowered to lower the arm 25, and the gripped portion 29 of the cage 3a is gripped by the grab 28. Then, as shown in FIGS. 8 and 9, the cylinders 6, 6 are contracted, and the brackets 7, 7 are removed from the cable plates 8, 8. In this state, the cable plates 8 and 8 are locked to the lower edge of the sheave block 10 (FIG. 10). Then, as shown in FIG. 10, the cylinders 37, 37 are contracted to raise the arm 25 and raise the cage to the position 3a1. Then, FIG.
And, as shown in FIG. 6, the swivel base 21 is swung 90 degrees in the direction of the arrow, the swing cylinder 26 is extended to move the cage to the position 3a2, and the door 4 is moved to the door position of the position 3a1 (FIG. 10). It moves to a symmetrical position of 180 degrees. Next, the cylinders 37, 37 are extended to lower the arm 25, the cage 3a2 is lowered into the downward passage 2, and the brackets 7, 7 are attached to the other ends of the cable plates 8, 8 locked to the sheave block 10. Face up. Finally, the cylinders 6 and 6 are extended to insert the brackets 7 and 7 into the cable plates 8 and 8, and then the grab 28 is removed to complete the switching of the cage 3a from the ascending passage 1 to the descending passage 2.
Note that FIG. 6 shows a waiting position 3a3 of the cage in which the arm 25 is rotated 90 degrees counterclockwise to stand by when the cage 3a is in an extra state other than during failure or rush.

[0017]

Since the present invention is configured as described above, the cage equipped with the counterweight can be operated by switching from the up passage to the down passage.

[Brief description of drawings]

FIG. 1 is a side sectional view of an elevator having an upper switching device embodying the present invention.

FIG. 2 is a front sectional view of FIG.

3 is a top view of FIG.

FIG. 4 is a front view showing an embodiment of the present invention.

5 is a side view of FIG.

FIG. 6 is a top view of FIG.

FIG. 7 is a perspective view when the cage is supported by a grab.

FIG. 8 is a detailed view of a main part of FIG.

FIG. 9 is a perspective view when the bracket is removed from the cable plate.

FIG. 10 is a perspective view of the cage in a lifted state.

FIG. 11 is a perspective view when the cage is in a swinging movement state.

[Explanation of symbols]

 1 ... Upward passage 2 ... Downward passage 3 ... Cage 4 ... Door 5 ... Guide rail 6 ... Cylinder 7 ... Bracket 8 ... Cable plate 9 ... Suspension wire Cable 10 ... Sheave block 11 ... Counterweight 12 ... Lower switching cart 13 ... Rail 14 ... Support shaft 15 ... Arm 16 ... Grab 20 ... Upper switching device 21. ..Swivel base 22 ... Connecting member 23 ... Base pillar 24 ... Support shaft 25 ... Arm 26 ... Rotating cylinder 27 ... Grab shaft 27a ... Rotating arm 29 ... -Gripped part 30, 31 ... Guide roller 32 ... Stopper 33 ... Chain 34, 35, 36 ... Sprocket 37 ... Cylinder

 ─────────────────────────────────────────────────── ─── 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)

Claims (1)

[Claims] 1. A vertical transfer device having a plurality of cages in an upstream passage and a plurality of downstream passages, respectively, wherein a cage is switched to the other passage by an upper switching device and a lower switching device so as to circulate and operate. A gripping member and a retractable bracket are provided, one end of the hanging wire cable is connected to a cable plate to which the bracket is connected in the extended state, and a counterweight is connected to the other end of the hanging wire cable hanging through the sheave block of the cable. Then, a swivel base is provided on the upper switching device, a support shaft is erected on the swivel base, and an arm that is lifted and lowered by a lift drive device is provided on the support shaft, and a grab that is rotated by a rotary device is provided on the arm. An upper switching mechanism for a vertical transfer device, wherein a shaft is provided, and a grab for gripping the gripped member is provided at a lower end of the grab shaft.