JP2947014B2 - Hanging transfer 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 hoisting and lowering transfer device which is suspended from a transport train traveling along a shelf above a passage between right and left shelves. The present invention relates to a suspending / conveying apparatus provided with a transfer means for pushing and pulling a load between a load receiving portion of a step and a load receiving portion of a lifting / lowering transfer device.

[0002]

2. Description of the Related Art As described above, an elevating and lowering transfer apparatus provided with a transfer means for pushing and pulling a load, has an accuracy such that the load receiving portion and the load receiving portion on the shelf side are at the same level. Unless the lifting and lowering is stopped well, it is impossible to safely and smoothly transfer the load between the two receiving parts. However, it is not easy to increase the stop level accuracy of the lifting platform suspended by a plurality of suspenders such as a chain and a belt due to the extension of the suspenders. In addition, since the loading / unloading platform suspended by the hanging tool is unstable, even if the loading / unloading platform can be accurately stopped at a predetermined level, the transportation of the loading / unloading platform can be carried out safely and smoothly due to the swing of the loading / unloading platform. There is also a risk that loading will be hindered.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features are indicated by parenthesized reference numerals in the embodiments described later. As shown, the suspended transfer device of the present invention provides a transfer train (9) that travels along a shelf above a passage (2) between the left and right shelves (1A, 1B).
And a lifting and lowering transfer device (17) suspended from the transport train (9) so as to be able to be lifted and lowered by a plurality of hanging tools (16) that can be wound up and out, The lifting / lowering transfer device (17) is a lifting frame suspended by the suspending device (16).
(21), and a lifting platform (22) supported on the lifting frame (21) so as to be movable up and down within a certain range, and the lifting platform (22) is connected to the load receiving portion (3) of each stage on the shelf side. Receiving part (23), a transfer means (24) for pushing and pulling a load between the two receiving parts (3, 23), and a supported member (36a ~
37b), and each stage load receiving part (3) on the shelf side has a support member
The support member (6) receives the protruding supported members (36a to 37b) and moves the lifting / lowering platform (22), which descends integrally with the lifting / lowering frame (21), to its load receiving portion. (23) is to stop and support it at the same level as the shelf-side load receiving portion (3).

In practicing the present invention, a detector for detecting that the loading / unloading platform (17) has risen relative to the lifting frame by a predetermined amount and stopping the lowering of the lifting frame may be provided. I can do it. In addition, the supported members (36a to 37b) are a lifting platform (17)
The shelf-side support member (6) is installed between the shelf supports (4) on the side-to-shelf passage (2) side,
The front end of the load supporting roller rail (8) of the load receiving portion (3) can be supported. Further, the support member (6) on the shelf side has a receiving portion for correcting a positional displacement of the supported member (36a) in the train traveling direction at a position for receiving the supported member (36a) on the lifting platform (17) side. (43) can be provided.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.
Are shelves arranged side by side with a passage 2 therebetween.
Load receiving parts 3 partitioned in the length direction and the height direction
It has. Each load receiving portion 3 is a pair of left and right load supporting rollers whose front and rear ends are supported by a pair of front and rear support members 6 and 7 laid between shelf supports 4 on the passage 2 side and between shelf supports 5 on the opposite side. A rail 8 is provided. Note that the load support levels of the load receiving portions 3 opposed to each other across the passage 2 (the load support levels of the load supporting roller rails 8) are the same.
Therefore, the upper surface of the support member 6 on the side of the passage 2 that supports the load supporting roller rail 8 is also at the same level.

Reference numeral 9 denotes a transport train. This transport train 9
A power trolley 13 supported by a guide rail 10 erected above the passage 2 between the two shelves 1A and 1B and having drive wheels 12 driven by a motor 11, and idle wheels 14
And a free trolley 15 having
(Shelves 1A and 1B). On the transport train 9, a lifting / lowering transfer device 17 is suspended by a plurality of belts (suspension members) 16. Each belt 16
Is operated by hoisting and feeding means 20 comprising a belt hoisting / unwinding drum 18 incorporated in the transport train 9 and a motor 19 for driving the drum 18 to rotate in a forward / reverse direction to move the lifting / lowering transfer device 17 up and down. It is.

The lifting / lowering transfer device 17 is capable of moving down and up and down in the passage 2 between the shelves 1A and 1B.
The lifting frame 21 which is directly suspended by the lifting frame 6, and the struts 21 disposed on both sides of the lifting frame 21 in the train traveling direction
a lift guide 22 which is supported by the lift frame 21 so as to be able to move up and down within a predetermined range with the guide a as a guide.
A load receiving section 23 which can be connected at the same level as each of the load receiving sections 3 on the shelf side, and a load transfer means 24 are provided above. The load receiving section 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 shelf side load receiving section 3. The load transfer means 24 is for pushing and pulling the load W between the load receiving portion 3 on the shelf side and the load receiving portion 23 on the lifting / lowering platform 22 side, and conventionally known various types can be used. Here, a pair of left and right movable members which are the same as those disclosed in Japanese Patent Application No. 5-133485 previously filed by the present applicant and which can move back and forth on both left and right sides of the load W in the load transfer direction. And the movable body 2
Load locking device 2 pivotally supported at the front and rear ends of 6, 27
8a, 28b and 29a, 29b and movable bodies 26, 27
Driving means 30 for retracting and moving the
9b illustrates a drive unit 31 configured to swing the 9b up and down.

That is, the movable bodies 26 and 27 are fixed rail 3
Intermediate movable rail 34 that can move back and forth with respect to
35, and is supported so as to be able to move back and forth.
Is the intermediate movable rail 3 with respect to the fixed rails 32 and 33.
4 and 35, and the intermediate movable rail 3
This mechanism moves the movable bodies 26 and 27 relative to the moving members 4 and 35, and this mechanism is basically the same as a conventionally known moving drive mechanism for a three-stage running fork. Further, the driving means 31 is for raising and lowering the load locking members 28a to 29b between a standing posture and a falling posture for pushing and pulling the load W, and is provided at one end side of the movable bodies 26 and 27. A pair of left and right load locking members 28a, 29a (or 28
b, 29b) from the standing posture to the lying posture (or vice versa), the pair of left and right load locking members 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 both left and right sides of the lifting platform 22, respectively. These supported members 36a to 37b are arranged in parallel between the load supporting roller rails 25, and are composed of pins that can move back and forth toward the left and right shelves 1A and 1B, and are provided with electromagnets and motor-driven screws. It is driven by a suitable retracting drive means 38a, 38b and 39a, 39b such as a shaft and a swing arm. These retracting drive means 38a-39b
May be provided in parallel for each of the supported members 36a to 37b as shown in the figure, but two or all four of the supported members 36a
To 37b may be configured to be driven in conjunction with each other by a single drive unit.

The lifting platform 22 is normally stable at a lower limit level supported on the bottom 21b of the lifting frame 21 by gravity. Thus, as shown in FIG.
(A limit switch or the like) 40 for detecting that the height has risen by a certain amount with respect to the lifting frame 21 is attached to, for example, one of the columns 21 a of the lifting frame 21. 41
Is an operating member attached to the lifting platform 22, and operates the actuator 40a of the detector 40 when the lifting platform 22 has risen 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 to / from the load receiving portions 3 of the shelves 1A and 1B is performed, the lifting / lowering transfer device 17 is lifted up to the ascending limit level as shown by a virtual line in FIG. The transport train 9 is caused to travel along the guide rail 10 to a position corresponding to the loading / unloading work receiving portion 3. When the transporting 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, and the belt 16 is unwound, and the lifting and lowering transfer device 17 is moved to the loading / unloading work 3 As shown in FIG. 4A, after the lift platform 22 has passed the load receiving section 3 above one of the load receiving sections 3 to be loaded / unloaded, the lower side of the lift platform 22 is moved right and left. The two driven members 36a-37b in the section
To 39b.

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 load receiving section 3 to be loaded and unloaded, the projecting state is as shown in FIG. 4B. Each of the supported members 36a to 37b rides on the support member 6 supporting the front end of the load supporting roller rail 8 in the load receiving section 3, and prevents the lifting platform 22 from further descending. At this time, the load receiving portion 23 (the load supporting roller rail 25) on the lifting platform 22 side and the shelves 1A, 1B
It is at the same level as the load receiving section 3 (load supporting roller rail 8). In this way, the belt 16 is extended even after the left and right sides of the lifting platform 22 are 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 lifting frame 21 is lowered, and the lifting platform 22 moves upward relative to the lifting frame 21. When the amount of upward movement of the lifting platform 22 with respect to the lifting frame 21 reaches a certain amount, the detector 40 is activated to detect such a state.
Of the motor 19 is controlled to stop.

If the elevator 22 is stopped at the loading / unloading work target level by controlling as described above, the loading / unloading means 2
For example, when the load W of the load receiving portion 3 on the shelf 1A side is drawn into the load receiving portion 23 on the lifting platform 22 side and transferred, the load locking members 28a of the pair of left and right movable bodies 26 and 27 are operated. To 29b, the load locking devices 28a, 29 on the shelf 1A side.
The movable bodies 26 and 27 are advanced to the shelf 1A side in a state where a is in the upright posture (the load locking members 28b and 29b on the opposite side are lying down). At this time, both movable bodies 26 and 27
The load W supported on the A-side load receiving portion 3 advances and moves on both left and right sides. When the movable bodies 26 and 27 reach the advance limit position, the load locking members 28a and 29a are switched to the lying posture, and then both movable bodies 26 and 27 are moved back to the original position, thereby the shelf 1A of the shelf 1A is moved. The load W in the load receiving portion 3 is lifted and lowered by the two loading stoppers 28a and 29a in the lying posture.
Drawn out on the side cargo receiving portion 23. At this time, the load W slides 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 is pushed out to the load receiving portion 3 on the shelf 1A for transfer.
A pair of left and right load locking members 28b, 2 on the rear side of the load W
The movable bodies 26 and 27 are advanced to the shelf 1A side with the 9b in the lying posture (the load locking members 28a and 29a on the shelf 1A are in the standing position), and the load W is moved by the load locking members 28b and 29b. Is pushed out into the load receiving portion 3 on the shelf 1A side, and the two movable bodies 26 and 27 may be moved backward to the original positions. The load W is also pushed out, pulled in, and transferred between the load receiving section 3 on the shelf 1B side and the load receiving section 23 on the lifting platform 22 side.
The same procedure can be performed as described above.

When the load transfer operation is completed, the drum 18 is driven in the reverse direction by the motor 19 of the winding and unwinding means 20 to wind up the belt 16, whereby the lifting and lowering device 1 is moved.
At this time, the lifting frame 21 is raised first, and then the lifting platform 22 is lifted by the bottom 21 b of the lifting frame 21. After the supported members 36a to 37b in the protruding state float from the supporting members 6 on the shelves 1A and 1B, each of the supported members 36a to 37b in the protruding state before reaching the load receiving section 3 one level higher. 37b is retracted by the retracting drive means 38a to 39b. Then, after the elevating / moving device 17 has reached the ascending limit level indicated by the imaginary line in FIG.

Although not shown in the figure, when the elevating / moving device 17 moves up and down in the passage 2 between the shelves 1A and 1B, it is provided on the left and right sides of the elevating frame 21 of the elevating and moving device 17. By the fitting of the ascending / descending guide and the ascending / descending guide rail vertically provided on the side of the passage 2 of the shelves 1A and 1B, the train traveling direction (front-back direction) of the elevating / moving device 17 and the inter-shelf passage 2
5 can be configured to prevent undesired 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. 36a, the supported member 36
The receiving part 42 for correcting the positional deviation in the direction of travel of the train a can be provided. The illustrated receiving portion 42 is formed by forming a V-shaped recess in which the supported member 36a is fitted by a pair of left and right members 43, and is configured by a U-shaped recess having an upper end opening opened in the train traveling direction. You can do it. By arranging such a receiving portion 42, when the right and left sides 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 traveling direction (front-back direction) even when the supported member 36a is fitted in the receiving portion 42,
Can be automatically corrected.

Load transfer means 24 for pushing and pulling load W
Is not limited to the above embodiment. For example, a movable body that moves under and below 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 member provided at the front and rear ends of the movable body so as to be able to undulate. And any other conventionally known type such as Of course,
The load-supporting roller rails 8 and 25 are provided on the shelf-side load receiving portion 3 and the lifting / lowering load platform 22-side load receiving portion 23. However, these roller rails are not essential, and in some cases, the load receiving / lowering platform 22-side load receiving portion. The portion 23 may be provided with a load support transport drive conveyor driven in the load transfer direction together with the load transfer means 24. Further, although the belt 16 is used as a hanging tool for hanging the lifting / lowering moving device 17, it may be a chain.

[0018]

As described above, according to the suspending / conveying device of the present invention, the lifting / lowering carrier lowered into the passage between the shelves is supported on the left and right sides thereof so as to be movable back and forth. Via the member and the support member on the shelf side, the shelf on both sides can be received at the entry / exit work target level. Moreover,
The lifting platform is directly moved up and down by a lifting device such as a belt, which is directly suspended by a lifting device such as a belt, so that a chain is used as a lifting device. Extremely easy control that detects the relative rise of the lifting platform with respect to the lifting frame and automatically stops the lowering of the lifting / lowering device even in the situation where the slack detection means of the hanging tool is not provided. In this way, the loading / unloading platform is accurately stopped at the loading / unloading work target level, that is, in a state where the shelf-side load receiving section and the lifting / lowering platform-side load receiving section are at the same level, and an unstable hanging state by a suspending tool. Therefore, a stable state can be achieved in which both sides are supported by the shelves on both sides.

Therefore, in spite of using the load pushing / pulling transfer means requiring the stop level precision, the lifting / lowering stop control of the lifting / lowering moving device becomes easy and easy, and the shelf and the lifting / lowering by the load transfer means are easy. Pushing and pulling transfer to and from the carrier can be performed extremely safely and smoothly.

[Brief description of the drawings]

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

FIG. 2 is a side view in a state where a front shelf is omitted.

FIG. 3 is a cross-sectional plan view of FIG.

FIG. 4A is a front view showing the main part of the elevating / moving device and the main part of the shelf in a state immediately before stopping, and FIG. 4B is the main part of the elevating / moving device stopped at a predetermined level and the main part of the shelf; FIG.

FIG. 5 is a longitudinal sectional side view showing a main part of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A shelf 1B shelf 2 Inter-shelf passage 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 (suspension tool) 17 Elevating device REFERENCE SIGNS LIST 20 belt winding and unwinding means 21 elevating frame 22 elevating load platform 23 load receiving part on elevating load platform side 24 load pushing / pulling transfer means 25 load supporting roller rail on elevating load platform side 36 a supported member 36 b supported member 37 a supported member 37 b supported Member 38a Retractable drive means 38b Retractable drive means 39a Retractable drive means 39b Retractable drive means 40 Lifting and lowering platform lift detector 42 Position correction receiving part of supported member

Claims (4)

(57) [Claims] 1. A transport train (9) running along a shelf above a passage (2) between left and right shelves (1A, 1B), and the transport train
(9) a lifting and lowering transfer device (17) suspended by a plurality of lifting and lowering members (16) that can be lifted and unwound from the lifting transfer device (17). ) Includes a lifting frame (21) suspended by the hanging tool (16), and a lifting platform (22) supported by the lifting frame (21) so as to be vertically movable within a certain range. ) Is a load receiving part (23) connected to the load receiving part (3) of each stage on the shelf side, a transfer means (24) for pushing and pulling the load between the two load receiving parts (3, 23), Supported members (36a to 37b) provided to be able to move back and forth in the horizontal direction, and a support member (6) is provided at each shelf receiving portion (3) on the shelf side,
This support member (6) is a supported member (36a-37b)
Lifting platform (22) that receives and receives and lowers integrally with the lifting frame
A suspension transport device for stopping and supporting at a height at which the load receiving portion (23) is connected at the same level as the load receiving portion (3) on the shelf side. 2. A detector for detecting that the loading / unloading platform (22) has risen relative to the lifting / lowering frame (21) by a predetermined amount and stopping the lowering of the lifting / lowering frame (21) is provided. The hanging conveyance device according to claim 1. 3. The supported members (36a-37b) are disposed at two front and rear positions on each of the left and right sides of the lifting platform (22), and the support member (6) on the shelf side is provided with an inter-shelf passage (2). 3. The suspension transfer device according to claim 1, wherein the suspension transfer device is provided between the shelf support posts (4) on the side and supports a front end of the load supporting roller rail (8) of the load receiving portion (3). 4. 4. The shelf-side supporting member (6) includes a receiving portion (43) for correcting a positional displacement of the supported member (36a) on the lifting platform (22) side in the train traveling direction. The hanging transport device according to any one of claims 1 to 3.