JPH05105373A - Counter weight fitting structure for vertical conveyor - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a vertical transfer machine that circulates a cage equipped with a counterweight to an up and down passage. [Structure] A pair of sheave blocks is provided between the ascending and descending passages, a plurality of pairs of sheaves are horizontally provided in a two-to-one set, and the center distance of the inner sheave is slightly larger than the thickness of the counterweight. A wire plate and a counterweight are respectively hung at both ends of a cable wire hung on a set of sheaves, and a pair of brackets that can be detachably attached to the cable plate are provided on the top surface of the cage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical transport device, and more particularly, it is provided with a plurality of cages in each of an up path and a down path,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a counterweight mounting structure 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 to circulate them.

[0002]

2. Description of the Related Art Regarding the vertical transport apparatus, the present applicant has filed Japanese Patent Application No.
No. 83728 proposes a linear motor drive elevator.

[0003]

The above proposal is effective for circulating the cage to the up and down passages by the linear motor drive, but it does not have the counterweight but operates the cage having the conventional counterweight. It does not let you.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a counterweight mounting structure for a vertical transfer device that circulates a cage equipped with a counterweight in an ascending / descending path.

[0005]

According to the present invention, a plurality of cages are provided in each of the ascending passage and the descending passage, and the cages are switched to the other passage to be circulated by the upper switching device and the lower switching device. In the vertical transport device,
A pair of sheave blocks is provided in the upper part between the ascending passage and the descending passage, and a plurality of pairs of sheaves are provided in a horizontal direction in a two-to-one set in each sheave block. Formed slightly larger than the thickness, and hanging wire cables are hung over each set of sheaves to hang a tubular cable plate on the inner lower end of the wire cables, and a counterweight on the outer lower end, A pair of brackets is provided on the top surface of the cage, and the brackets are extended and contracted by a cylinder and engaged with and disengaged from the cage.

[0006] It is preferable that the cable plate is configured to be locked to the lower edge of the sheave block or to be locked by a locking device at the lower part of the down passage when the bracket is removed.

[0007]

In the counterweight mounting structure for the vertical conveyor constructed as described above, cable cables corresponding to the number of cages are provided by the hanging wire cables on the cage side in the space between the up passage and the down passage. On the opposite sides, counterweights corresponding to the respective cable plates are suspended without interfering with each other. On the other hand, the brackets of each cage are inserted into the corresponding cable plates by extension of the cylinders, the cages are supported by the cable plates and are counterbalanced by the weights. Then, for example, when the cage rises in the ascending path and the cable plate is locked by the lower edge of the sheave block and stopped, the cage is contracted by removing the block from the cable plate after supporting the cage by the upper switching device. Then, the cage is swung to the downward passage by the switching device, the cylinder is extended, and the block is inserted into the other end of the cable plate locked to the sheave block. Next, the upper switching device is disconnected to lower the cage, the lower switching device switches the cage to the up passage, and the cage is circulated in the up and down passage.

[0008]

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

In FIG. 1, a plurality of cages (only two cages 3a and 3b in the upper part of the ascending passage 1 are shown in the drawing) in the ascending passage 1 and the ascending passage 2, respectively. The reference numeral 3 is used), which is housed so that it can be raised and lowered. A door 4 is provided on each of the cages 3a and 3b on the outside facing the cage of the down passage.
Then, the guide rails 5 provided upright in the passages 1 and 2 are guided by two pairs of upper and lower guide rollers 6 ... And moved up and down by a linear motor or a rack and pinion type elevating and lowering drive device 7.

For example, on the top surface of the cage 3a, the cylinder 2
A pair of brackets 8 and 8 which are expanded and contracted by 2, 22 (FIG. 5)
Is provided orthogonal to the door 4. The extended brackets 8 and 8 are respectively attached to the cable plate P.
1 and P1. The cable plate P
1, P1 to the counterweights W1, W by the hanging wire ropes 9, 9 via the sheave block 20 (FIG. 2).
1 is also connected, and similarly, counterweights W3 and W3 are connected to the cage 3b via cable plates P2 and P2. Reference numeral 23 is a counterweight guide wire.

On the other hand, an upper switching device 10 is erected on the floor FT above the uppermost floor. This device 20
A support shaft 11 is erected on a turntable (not shown), and an arm 12 is provided on the support shaft 11 so as to be vertically movable. At the tip of the arm 12, there is provided a grab 13 that holds and lifts the cylinders 22, 22 of the cage 3.

On the other hand, on the floor FB on the lower floor of the lowermost floor, a lower switching carriage 14 is provided so that it can travel on rails 15 and 15. A support shaft 16 is provided upright on the carriage 14, and an arm 17 is provided on the support shaft 16 so as to be vertically movable. A grab 18 that supports the bottom of the cage 3 is provided at the tip of the arm 17.
The cage 3 configured as described above and moving upward in the ascending passage 1
Is supported by the upper switching device 10 and is moved to the down passage 2 by turning the arm 12. Further, the cage 3 descending the down passage 2 is supported by the lower switching carriage 14 and moved to the up passage 1, so that a plurality of cages 3 circulate in the up passage 1 and the down passage 2.

2 to 4, the sheave block 20 has a space S which connects both passages 1 and 2 on the floor FT.
And is provided over the center line L in the figure. In this sheave block 20, 16 to 8 sets of sheaves C1 and c are symmetrically arranged with respect to the longitudinal centerline M.
1, C2, c2, C3, c3, C4, c4, C5, c
5, C6, c6, C7, c7, C8 and c8 (hereinafter, reference numeral C is used when collectively referred to), and each set is arranged in parallel with the horizontal upper edge 20a of the block 20. The arrangement of these sheaves C is the sheave C1 on the center line L side.
Describing about C8, the sheave C1 has center lines L and M.
It is located closest to. On the other hand, the sheave C2 is
It is provided at the middle height of the block 20 and slightly outside the center line L with respect to the sheave C1 (specifically, a dimension D slightly larger than the thickness of the cable plate P described later). The sheave C3 is provided in the height direction in the middle of the sheaves C1 and C2 and outside the sheave C2 by the dimension D. The sheave C4 is the lowest in the height direction and is provided outside the sheave C3 by the dimension D. In addition, C5 to C8 are sheaves C1 to C for dimension D
It is provided outside of C4. The set of sheaves C (for example, sheaves C1 and c1) includes a hanging wire rope 9
, The cable plate P1 is hung at the lower end portion on the center line L side, and the counterweight W1 is hung at the lower end portion on the other side. In this way the center line L
Eight cable plates P1 to P8 (hereinafter referred to as "P" when collectively referred to) are suspended on the side, and counterweights W1 to W8 (hereinafter referred to as "W" when collectively referred to) are provided on the other side. It is suspended.

Of the pair of cable plates P, P, the pair of cable plates P1 to P7 having an odd number are
For the cages 3a to 3d of the ascending passage 1, the pair of cable plates P2 to P8 having an even number are provided in the descending passages 3e to 3h.
For example, the cable plate P1 is used for the cage 3a even after the cage 3a is moved to the down passage 2.

In FIG. 1, the cage is moved up and down by a linear motor or a rack and pinion type elevator drive device 7, but in FIG. is doing. In other words, the present invention is applicable to the case where the cage is lifted and lowered by the linear motor or the rack and pinion type lifting drive device 7, and also when the cage is lifted and lowered by the wire rope hoisting mechanism in an ordinary elevator.

Reference numeral 21 in FIG. 4 is a sheave drive device which is provided outside the sheave block 20 and comprises eight motors with reduction gears for driving the sheaves c1 to c8, respectively.

Referring also to FIG. 5, on the top surface of the cage 3, a pair of brackets 8 and 8 which are expanded and contracted by a cylinder 22 are provided in parallel with the center line M, and the pitch p of these brackets 8 and 8 corresponds to each other. The cable plates P and P are formed to have the same pitch. Therefore, the extension of the cylinders 22, 22 causes the brackets 8, 8 to move to the cable plates P, P.
It is inserted into and is released by contraction.

Next, the mode of switching the cage from the up passage 1 to the down passage 2 will be described with reference to FIGS.

In FIG. 5, the cage 3 is provided in the up passage 1.
And the cage 3A is descending in the descending passage 2. In the figure, PA and WA are the cable plate and counterweight of the cage 3A. Then, when the cable plate P of the cage 3 rises and stops until it comes into contact with the lower edge of the sheave block 20, the glove 13 of the upper switching device 10 holds both cylinders 22 and 22 to support the cage 3, and then the cage 3 shown in FIG. As shown in, the cylinders 22 and 22 are contracted to remove the brackets 8 and 8 from the cable plates P and P. In this state, the cable plates P, P are locked to the lower edge of the sheave block 20. Next, the arm 12 is raised to pull up the cage 3, pivot in the direction of the arrow as shown in FIG. 7, move the cage 3 to the descending passage 2 and then descend, and the brackets 8 and 8 move to the sheave block 20.
It is stopped at a position facing the cable plates P, P locked to. Finally, as shown in FIG.
After extending 2 and 22 and inserting the brackets 8 and 8 into the other ends of the cable plates P and P, the connection of the glove 13 is released, and the switching of the cage 3 from the up passage 1 to the down passage 2 is completed.

When switching the cage 3 from the down path 2 to the up path 1, the grab 18 of the lower switching carriage 14 is used to move the cage 3.
After supporting the bottom surface of C, the cylinders 22 and 22 are contracted and pulled out from the cable plates P and P. Next, the cable plates P, P are locked by a lower cable plate locking device (not shown), the arm 17 is lowered to lower the cage 3, the carriage 14 is moved to the up passage 1 side, and the cage 3 is moved to the up passage 1. Then, the cage 3 is lifted, the cylinders 22, 22 are extended, and the blocks 8, 8 are inserted into the cable plates P, P locked by the locking device,
The switching from the down passage 2 to the up passage 1 of the cage 3 is completed.

[0021]

Since the present invention is configured as described above, it is possible to provide a vertical transfer device for circulating a cage equipped with a counterweight.

[Brief description of drawings]

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

FIG. 2 is a front view showing a sheave block.

FIG. 3 is a side view of FIG.

FIG. 4 is a top view of FIG.

FIG. 5 is a top view illustrating the switching of the cage from the up passage to the down passage when the cage is stopped at the top.

FIG. 6 is a top view when the bracket is removed from the cable plate.

FIG. 7 is a top view of the cage during the turning movement.

FIG. 8 is a top view showing a state in which the bracket has been inserted into the cable plate and switching has been completed.

[Explanation of symbols]

 C, c ... Sheave D ... Dimensions slightly larger than the thickness of counterweight P ... Cable plate S ... Space W ... Counterweight 1 ... Upward passage 2 ... Downward passage 3. ..Cage 4 ... Door 5 ... Guide rail 6 ... Guide roller 7 ... Rack and pinion type elevation drive device 8 ... Bracket 9 ... Suspension wire cable 10 ... Upper switching device 11 ... Support shaft 12 ... Arm 13 ... Grab 14 ... Lower switching cart 15 ... Rail 16 ... Support shaft 17 ... Arm 18 ... Grab 20 ... Sheave block 21・ ・ ・ Sheave drive device 22 ・ ・ ・ Cylinder 23 ・ ・ ・ Counterweight guide wire

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Nobuyuki Matsui 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Yoshinori Matsunaga 1-2-7 Moto-Akasaka, Minato-ku, Tokyo 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 Kashima Construction Co., Ltd.

Claims (1)

[Claims] 1. A vertical transfer device comprising a plurality of cages in each of an upstream passage and a downstream passage, wherein the upper switching device and the lower switching device mutually switch the cages to the other passage for circulation operation. A pair of sheave blocks is provided in the upper part between the passage and each sheave block is provided with a plurality of pairs of sheaves in a horizontal direction of 2 to 1, and the center distance of the inner sheave is slightly larger than the thickness of the cable weight described later. Then, suspending wire cables are hung over each set of sheaves, a cylindrical cable plate is suspended at the inner lower end portion of the wire cables, and a counterweight is suspended at the outer lower end portion, and the top surface of the cage is also suspended. A pair of brackets that are extended and retracted by a cylinder to be engaged with and disengaged from the cage are provided on the counterweight of the vertical conveyor. Construction.