JPH0761525A - Suspended carrying device - Google Patents

Abstract

PURPOSE:To improve the accuracy of vertical movement stop level of an vertical moving device of a suspended carrying device, on which the vertical moving device suspended from a carrying electric vehicle with a belt or the like is provided with a transferring means for pushing and pulling loads. CONSTITUTION:A vertical moving loading space 22 provided with a transferring means 24 is supported on vertical moving frame 21 suspended directly with a belt 16 or the like so that the space 22 may be vertically movable within a certain range. The vertically moving loading space 22 only, of which supporting members 6 arranged in a shelf are loaded with members 36a, 37a to be supported provided in both right and left side of the vertically moving loading space 22 so as to be moved freely in the lateral direction and which is lowered, is received by shelves 1A, 1B of both sides at a position, where a load receiving part 3 of the shelf and a load receiving part 23 of the vertically moving loading space 22 are positioned at the same level. Thereafter, the belt 16 is delivered to slightly lower the vertically moving frame 21 only, and thereafter, lowering of a vertically moving device 17 is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention hangs an elevating and lowering device from a transportation train that travels along the shelves above a passage between left and right shelves. The present invention relates to a suspending and conveying apparatus provided with transfer means for pushing and pulling and transferring a load between a stepped load receiving part and a load receiving part on the side of the lifting / lowering transfer device.

[0002]

2. Description of the Related Art As described above, an elevating and lowering device equipped with a transfer means for pushing and pulling a load transfers the load so that the load receiving part and the load receiving part on the shelf side are at the same level. If the elevator is not stopped well, it is impossible to transfer the load between the load receiving parts safely and smoothly. However, it is not easy to increase the level of stop level of the lifting platform suspended by a plurality of suspenders such as chains and belts due to the extension of the suspenders. In addition, since the hoisting platform that is suspended by the hanger is unstable, even if the hoisting platform can be stopped accurately to a predetermined level, the hoisting platform will sway to ensure safe and smooth loading. There is also a risk that it will be blocked.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, the features of which will be described with reference numerals of embodiments described later in parentheses. As shown, the suspension transport device of the present invention is a transport train (9) that travels along the shelf above the passage (2) between the left and right shelves (1A, 1B).
And a lifting transfer device (17) that is hung up and down by a plurality of suspending tools (16) that can be hoisted and unwound from the transfer train (9), The lifting transfer device (17) is a lifting frame suspended by the hanging tool (16).
(21) and an elevating platform (22) supported on the elevating frame (21) so as to be vertically movable within a certain range, and the elevating platform (22) is connected to the load receiving section (3) at each stage on the shelf side. Load receiving section (23), transfer means (24) for pushing and pulling a load between both load receiving sections (3, 23), and a supported member (34a) provided so as to be able to move back and forth in the lateral direction. ~
35b), and support members are provided on each shelf-side load receiving part (3).
(6) is provided, and the supporting member (6) receives the supporting members (34a to 35b) in the protruding state and lowers the lifting platform (22) that is integrally lowered with the lifting frame (21). (23) is characterized in that it is stopped and supported at a height at which it is connected at the same level as the load receiving section (3) on the shelf side.

In carrying out the present invention, it is possible to provide a detector for detecting that the lifting platform (17) has risen relative to the lifting frame by a certain amount and stopping the lowering of the lifting frame. I can. Further, the supported members (34a to 35b) are the lifting platform (17).
They are installed at two places on the left and right sides of the rack, and the support members (6) on the shelf side are installed between the shelf columns (4) on the shelf passage (2) side.
The front end of the load supporting roller rail (8) of the load receiving portion (3) can be supported. Furthermore, the support member (6) on the shelf side is provided with a receiving portion for correcting the positional deviation of the supported member (34a) in the train traveling direction at a position for receiving the supported member (34a) on the lifting platform (17) side. (43) can be provided.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the accompanying drawings. 1A and 1B in FIGS.
Are shelves arranged side by side with a passage 2 interposed therebetween.
Number of load receiving parts 3 divided into the length direction and the height direction of the
Is equipped with. Each load receiving portion 3 is a pair of left and right load supporting rollers whose front and rear end portions are supported by a pair of front and rear support members 6 and 7 which are installed between the shelf columns 4 on the passage 2 side and between the shelf columns 5 on the opposite side. The rail 8 is provided. The load supporting levels of the load receiving portions 3 (the load supporting level of the load supporting roller rail 8) that are opposed to each other across the passage 2 are the same.
Therefore, the upper surface of the support member 6 on the side of the passage 2 supporting the load supporting roller rail 8 is also at the same level.

Reference numeral 9 is a transportation train. This transport train 9
Is a power trolley 13 having drive wheels 12 supported by a guide rail 10 installed above a passage 2 between the shelves 1A and 1B and driven by a motor 11, and idle wheels 14
And a free trolley 15 having a passage 2
It is self-propelled along (shelf 1A, 1B). An elevator transfer device 17 is suspended from the transport train 9 by a plurality of belts (hangers) 16. Each belt 16
Is operated by a hoisting and unwinding means 20 including a belt hoisting and unwinding drum 18 built in the transport train 9 and a motor 19 for driving the drum 18 in forward and reverse directions to move the hoisting and lowering device 17 up and down. Is.

The elevation transfer device 17 is capable of descending and moving up and down in the passage 2 between the shelves 1A and 1B.
6, an elevating frame 21 that is directly hung by 6, and supporting columns 21 arranged on both sides of the elevating frame 21 in the train traveling direction.
An elevating and lowering platform 22 is supported on the elevating and lowering frame 21 so as to be vertically movable within a certain range by using a as a guide.
A load receiving portion 23, which can be connected to each of the rack-side load receiving portions 3 at the same level, and a load transfer means 24 are provided on the top. The load receiving portion 23 is provided with a pair of left and right load supporting roller rails 25 that can be connected to the load supporting roller rails 8 in the load receiving portion 3 on the shelf side. The load transfer means 24 pushes and pulls a load W between the load receiving part 3 on the shelf side and the load receiving part 23 on the lifting platform 22 side, and various conventionally known ones can be used. Here, it is the same as the one disclosed in Japanese Patent Application No. 5-133485 filed by the present applicant earlier, and a pair of left and right movable movable left and right sides of the load W in the load transfer direction. The bodies 26 and 27 and the movable body 2
Load locking tool 2 rotatably supported at both front and rear ends of 6, 27
8a, 28b and 29a, 29b, and movable bodies 26, 27
Drive means 30 for moving and retreating the load, and load locks 28a-2
9A and 9B is shown as an example.

That is, the movable bodies 26 and 27 are fixed rails 3
Intermediate movable rails 34 that can freely move in and out of 2, 33,
A driving means 30 is supported on the drive unit 35 so as to be movable back and forth.
Is an intermediate movable rail 3 with respect to the fixed rails 32 and 33.
The intermediate movable rail 3 is moved along with the movement of 4, 35.
The movable bodies 26 and 27 are moved in and out of relation to the motors 4 and 35, and this mechanism is basically the same as the conventionally known three-stage running fork drive mechanism. Further, the driving means 31 oscillates the load engaging members 28a to 29b between the upright posture and the laid posture in which the load W is pushed and pulled, and is located at one end side of the movable bodies 26 and 27. A pair of left and right load locks 28a, 29a (or 28
b, 29b) from the standing posture to the lying posture (or vice versa), the left and right pair of left and right load locks 28b, 29b (or 28) on the other end side of the movable bodies 26, 27.
a, 29a) are configured to interlock and swing from the lying posture to the standing posture (or vice versa).

Two supported members 36a, 36b and 37a, 37b are provided on the left and right sides of the lifting platform 22, respectively. Each of the supported members 36a to 37b is arranged in parallel between the load supporting roller rails 25, and is composed of pins that can be moved in and out of the shelves 1A and 1B on the left and right sides. It is driven to move in and out by suitable moving means 38a, 38b and 39a, 39b such as a shaft and a swing arm. These advance / retreat driving means 38a-39b
May be provided side by side for each of the supported members 36a to 37b as illustrated, but two or all of the supported members 36a may be provided.
37b may be configured to be driven to move in and out by a single driving means.

The lifting platform 22 is normally stable at the lower limit level supported on the bottom 21b of the lifting frame 21 by gravity. Thus, as shown in FIG.
A detector (a limit switch or the like) 40 for detecting that the lift has risen by a certain amount with respect to the elevating frame 21 is attached to, for example, one of the column parts 21 a of the elevating frame 21. 41
Is an operation member attached to the side of the hoisting platform 22 and operates the actuator 40a of the detector 40 when the hoisting platform 22 is lifted by a certain amount. Of course, the actuator 40a of the detector 40 may be directly operated by a part of the lifting platform 22, or may be a non-contact type such as a photoelectric switch or a magnetic switch.

When the loading / unloading operation of the load W is performed on the load receiving portion 3 of the shelves 1A and 1B, as shown by the phantom line in FIG. The transport train 9 is caused to travel along the guide rails 10 to a position corresponding to the cargo receiving section 3 that is the object of loading / unloading work. When the transportation train 9 is stopped at a predetermined position, the drum 18 is rotationally driven by the motor 19 of the hoisting and unwinding means 20, the belt 16 is unreeled, and the elevating and lowering transfer device 17 is moved to the loading / unloading target object 3 of the loading / unloading unit 3. Although it is lowered to the right side position, as shown in FIG. 4A, after the hoisting and lowering platform 22 has passed through the cargo receiving section 3 one above the cargo receiving section 3 of the loading / unloading work, the left and right sides of the hoisting and lowering platform 22 are shown. Each of the two supported members 36a to 37b in the section is connected to the withdrawal drive means 38a.
~ 39b to make it protrude.

When the lifting platform 22 at the lower limit level supported by the bottom 21b of the lifting frame 21 arrives at the position just beside the cargo receiving section 3 which is the object of loading and unloading, the projecting state is as shown in FIG. 4B. Each of the supported members 36a to 37b rides on the support member 6 that supports the front end portion of the load supporting roller rail 8 in the load receiving portion 3 and prevents the hoisting platform 22 from further descending. At this time, the load receiving portion 23 (load supporting roller rail 25) on the side of the lifting / lowering platform 22 and the shelves 1A and 1B.
It is at the same level as the side load receiving portion 3 (load supporting roller rail 8). In this way, the belt 16 is unrolled even after the left and right sides of the lifting platform 22 are received and stopped by the support members 6 of the left and right shelves 1A and 1B via the two front and rear supported members 36a to 37b, respectively. Only the elevating frame 21 descends, and the elevating platform 22 moves upward relative to the elevating frame 21. When the amount of ascending movement of the lifting platform 22 with respect to the lifting frame 21 reaches a certain amount, the detector 40 operates to detect the relevant state. Therefore, based on the detection signal of the detector 40, the winding and unwinding means 20.
The motor 19 is controlled to stop.

If the hoisting and loading platform 22 is stopped at the loading / unloading work target level by controlling as described above, the load transfer means 2
4 is operated. For example, when the load W of the load receiving portion 3 on the shelf 1A side is pulled in and transferred to the load receiving portion 23 on the lifting platform 22 side, the load locks 28a of the pair of left and right movable bodies 26, 27 are moved. ~ 29b, the load locks 28a, 29 on the shelf 1A side
Both movable bodies 26 and 27 are moved forward to the shelf 1A side in a state where a is in the standing posture (the load locking tools 28b and 29b on the opposite side are in the lying posture). At this time, both movable bodies 26 and 27 are attached to the shelf 1.
The load W supported by the load-receiving portion 3 on the A side advances and moves on both left and right sides. When the movable bodies 26, 27 reach the advance limit position, the load locking tools 28a, 29a are switched to the lying posture, and then both the movable bodies 26, 27 are moved backward to the original positions, whereby the shelf 1A of the shelf 1A is moved. The load W in the load receiving portion 3 is lifted and lowered by the load locks 28a and 29a in the lying posture.
It is pulled out on the side load receiving portion 23. At this time, the load W slides so as to transfer from the load-supporting roller rail 8 on the shelf side to the load-supporting roller rail 25 on the lifting platform 22 side.

When the load W on the load receiving portion 23 on the lifting platform 22 side is pushed out and transferred to the load receiving portion 3 on the shelf 1A side,
A pair of left and right load locks 28b, 2 on the rear side of the load W
The movable body 26, 27 is moved to the shelf 1A side while the 9b is in the lying posture (the load locks 28a, 29a on the shelf 1A side are in the standing posture), and the load W is held by the load locks 28b, 29b. After the slab has been pushed out and transferred into the load receiving section 3 on the side of the shelf 1A, both movable bodies 26 and 27 can be moved back to their original positions. Also, the push-in / pull-out transfer of the load W between the load receiving portion 3 on the shelf 1B side and the load receiving portion 23 on the lifting platform 22 side,
The same procedure as described above can be performed.

When the load transfer work is completed, the motor 19 of the winding and unwinding means 20 drives the drum 18 in the reverse direction to wind up the belt 16 to raise and lower the moving device 1.
7 is raised, but at this time, the lifting frame 21 is raised first, and then the lifting platform 22 is lifted by the bottom portion 21b of the lifting frame 21. Thus, after the supported members 36a to 37b in the protruding state have levitated from the supporting members 6 on the shelves 1A and 1B side, and before reaching the load receiving section 3 one step higher, the respective supported members 36a to 37b in the protruding state. 37b is retracted by the retracting drive means 38a-39b. Then, after the elevating and moving device 17 reaches the ascending limit level shown by a virtual line in FIG.

Although not shown in the figure, when the lifting / lowering moving device 17 moves up and down in the passage 2 between the shelves 1A and 1B, it is provided on both left and right sides of the lifting / lowering frame 21 of the lifting / lowering moving device 17. By fitting the lifted guides and the lift guide rails vertically attached to the passages 2 side of the shelves 1A and 1B, the train running direction (front-back direction) of the lift moving device 17 and the inter-shelf passage 2
Although it can be configured to prevent unreasonable swinging in the width direction (horizontal direction), as shown in FIG. 5, at least one supported member of the shelf-side supporting member 6, for example, a supported member. The supported member 36
It is possible to dispose the receiving portion 42 that corrects the positional deviation of a in the traveling direction of the train. The receiving portion 42 shown in the figure is formed by a pair of left and right members 43 to form a V-shaped concave portion into which the supported member 36a is fitted, but the upper end opening portion is composed of a U-shaped concave portion or the like opened in the train traveling direction. You can also do it. By disposing such a receiving portion 42, when the left and right side portions of the lifting platform 22 are supported by the supporting members 6 of the shelves 1A and 1B on both sides via the supported members 36a to 37b, the lifting platform 22 is supported. Is slightly displaced in the train running direction (front-back direction), when the supported member 36a is fitted into the receiving portion 42, the hoisting platform 22 travels in the train running direction (front-back direction).
The misalignment of can be automatically corrected.

Load transfer means 24 for transferring the load W by pushing and pulling
Are not limited to those in the above embodiment. For example, a movable body that moves back and forth under the bottom surface of the load W between a pair of left and right load supporting roller rails 8 and 25, and a load pushing / pulling locking device that is provided at both front and rear ends of the movable body so as to be up and down. It may be of any type known in the art, such as one consisting of and. Of course,
The load-supporting roller rails 8 and 25 are arranged on the shelf-side load-receiving portion 3 and the lift-loading platform 22-side load-receiving portion 23, but these roller rails are not essential, and in some cases, the lift-loading platform 22-side load-receiving rail. It is also possible to dispose a load supporting and conveying drive conveyor driven in the load transfer direction together with the load transfer means 24 in the section 23. Further, although the belt 16 is used as the suspending tool for suspending the lifting / lowering moving device 17, it may be a chain.

[0018]

As described above, according to the hoisting and conveying apparatus of the present invention, the hoisting and lowering platform, which is lowered into the passage between the shelves, is supported on both left and right sides thereof so as to be movable back and forth. Through the member and the support member on the shelf side, it is possible to receive them on the shelves on both sides at the level of the loading / unloading work target. Moreover,
Since the lifting platform is moved up and down relative to the lifting frame that is directly hung by a hanging tool such as a belt and driven up and down, like when a chain is used as a hanging tool. Even in a situation where a slack detecting means for hanging equipment is not installed side by side, it is extremely easy and easy control to detect the relative rise of the lifting platform with respect to the lifting frame and automatically stop the lowering of the lifting movement device. This allows the lifting platform to be stopped accurately while the loading and unloading target level is correct, that is, the shelf side loading section and the lifting platform side loading receiving section are at the same level, and the suspension tool makes an unstable hanging state. Therefore, it is possible to achieve a stable state with both sides supported by the shelves on both sides.

Therefore, although the load pushing / pulling transfer means which requires the stop level accuracy is used, the lifting / stopping control of the lifting / lowering moving device can be facilitated easily, and the rack and the lifting / lowering means can be moved by the load transfer means. It is possible to extremely smoothly and smoothly transfer the load to and from the loading platform.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a main part showing a load transfer state.

FIG. 2 is a side view with the front shelf omitted.

3 is a cross-sectional plan view of FIG.

FIG. 4 is a front view showing the main parts of the lifting / moving device and the main parts of the shelf just before the stop, and FIG. 4B is the main part of the lifting / moving device and the main parts of the shelf stopped at a predetermined level. It is a front view which shows and.

FIG. 5 is a vertical cross-sectional side view showing a main part of another embodiment.

[Explanation of symbols]

 1A Shelf 1B Shelf 2 Passage between shelves 3 Shelf-side load receiving part 6 Shelf-side support member 8 Shelf-side load-receiving part load supporting roller rail 9 Transport train 10 Guide rail 16 Belt (hanging tool) 17 Lifting / moving device 20 Belt winding and unwinding means 21 Lifting frame 22 Lifting platform 23 Lifting platform side load receiving part 24 Load pushing and pulling transfer means 25 Lifting platform side load supporting roller rail 36a Supported member 36b Supported member 37a Supported member 37b Supported Member 38a Entry / Exit drive means 38b Entry / exit drive means 39a Entry / exit drive means 39b Entry / exit drive means 40 Lifting platform lift detector 42 Position correction receiver of supported member

Claims (4)

[Claims] 1. A transport train (9) running along a shelf above a passage (2) between left and right shelves (1A, 1B), and this transport train.
A lifting and lowering transfer device comprising a lifting and lowering transfer device (17) that can be lifted and lowered by a plurality of hanging devices (16) that can be rolled up and unwound from (9). ) Comprises an elevating frame (21) suspended by the suspending tool (16) and an elevating platform (22) supported by the elevating frame (21) so as to be vertically movable within a certain range. ) Is the load receiving part (23) connected to the load receiving part (3) on each side of the shelf, the transfer means (24) for pushing and pulling the load between the load receiving parts (3, 23), and the left and right. It is provided with supported members (34a to 35b) that can move in and out in the lateral direction, and a supporting member (6) is provided in each shelf-side load receiving portion (3).
This supporting member (6) is a member to be supported (34a-35b) in a protruding state.
Lifting platform (22) that receives and lowers together with the lifting frame
The hanging transfer device for supporting and stopping the load receiving section (23) at the height at which the load receiving section (23) is connected at the same level as the shelf side load receiving section (3). 2. A detector is additionally provided for detecting that the lifting platform (22) has risen relative to the lifting frame (21) by a certain amount and stopping the lowering of the lifting frame (21). The suspended conveyance device according to claim 1. 3. The members to be supported (34a to 35b) are arranged in front and rear two positions on both left and right sides of the lifting platform (22), and the supporting member (6) on the shelf side is an inter-shelf passage (2). The suspended conveyance device according to claim 1 or 2, which is installed between the side shelf columns (4) and supports the front end portion of the load supporting roller rail (8) of the load receiving portion (3). 4. The support member (6) on the shelf side is provided with a receiving portion (43) for correcting the displacement of the supported member (34a) on the lifting platform (22) side in the train traveling direction. The suspended conveyance device according to any one of 1 to 3.