JPS6145883A - Coil lifter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a frame-type coil lifter for conveying horizontally placed coils.

[Background of the invention]

Conventionally, coil lifters for horizontal coil conveyance have a fifth
There are a link type coil lifter shown in the figure and a frame type coil lifter shown in Fig. 4. However, when the link type coil lifter stacks the coils, the distance between adjacent coils can be narrowed regardless of the coil width, but the link type coil lifter has the disadvantage that the total height becomes large. On the other hand, with a frame-type coil lifter, the overall height can be reduced, but when transporting and stacking narrow width coils, the frame protrudes beyond the width of the hanging arm that hangs the coil, and the length of the protruding frame increases.
It is well known that the stacking spacing of the coils must be increased.

The above-mentioned problems with conventional coil lifters are often very serious inconveniences when used, for example, in existing factory buildings. For example, if there is a slightly high obstacle in the middle of the lifter's transport path, the link type requires a detour, and the frame type requires more space for the coils than necessary. It is from.

By the way, if we examine the problems of the frame-type coil lifter mentioned above in detail, the problem of the frame ends protruding into the middle of the hanging arm when a narrow coil is hung can be solved by shortening the length of the frame itself. Therefore, if such shortening of the frame can be realized without causing any trouble in hanging heavy coils, it will be extremely useful. [Object of the Invention] To provide a short frame type coil lifter that can be narrowed regardless of the coil width.

[Summary of the invention]

The coil lifter of the first invention of the present application, which has been made to achieve the above-mentioned object, is characterized by a horizontal frame having an opening at both ends in the longitudinal direction and having a generally opening-shaped cross section; A pair of elongated support blocks that can be moved while maintaining the fitted state in the longitudinal direction, and claws for hanging the coil that are suspended from opposite outer ends of the pair of support blocks and that face inward at the lower ends of the support blocks. and a drive mechanism for moving the pair of support blocks in opposite directions with respect to the longitudinal direction of the frame, the pair of support blocks being spaced apart from each other by a certain length from opposing inner ends. It is located in a place where the names fit into each other. In the present invention, the length of the support block is lengthened to ensure mechanical strength when suspending the coil, and the length of the frame is shortened by providing the support blocks so that they fit and fit together in an intersecting state. This solves the inconvenience caused by making it longer.

In addition to the structure of the support block, the second invention of the present application realizes further shortening of the frame by improving the drive mechanism of the support block, and its features include: In addition to the above-mentioned invention, the drive mechanism of the support block is further constructed as a pinion rack mechanism, and has a pair of onions that are individually engaged with racks provided along the longitudinal direction of each support block. They are spaced apart in the longitudinal direction and biased towards the corresponding support block. According to this invention, when a pair of hanging arms is closed to hang a narrow coil, it is possible to prevent one side of the hanging arm from protruding from the opposite side of the frame, so that the frame can be made even shorter.

In the above, when a pair of support blocks are fitted into each other in a crossed manner within a certain length range from their opposing inner ends, it firstly means that a pair of support blocks are overlapped within a frame without interfering with each other. Second, in the relationship between the pair of support blocks and the frame, it is a structure that achieves a dynamically supported state in the cross section in the frame width direction. In other words, if the opposing inner end portions of a pair of support blocks are simply divided into the left side and right side in the horizontal direction of the frame, even if the first point is satisfied, the second point is not satisfied, and the frame This is because the result is that the screw is tilted and the screw moment is applied.

[Embodiments of the invention]

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a frame of a coil lifter, and a hanging part 5 is provided on the upper part of the frame to be hung by a crane hook (not shown). A pair of support blocks 2, 2' are slidably fitted into the frame 1, and at the opposite outer ends of the support blocks 2, 2', there is a suspension having claws 4, 4' at the lower ends for suspending the coil 6. Arms 3, 3' are hanging down. The support blocks 2, 2' are moved in opposite directions to open and close the hanging arms 3, 3'.

The support blocks 2 each have a first position within the frame 1.
It is composed of three parts: a support part 21, a second support part 22, and a third support part 23, and includes an upper guide rail that also serves as the frame 1, a side guide rail 8, a lower guide rail 9, and a spacer 1.
0. To explain this in detail with reference to FIG. 2, in the right half of the frame from the center in the width direction, the first support part 21 is located on the lower side, the side surface, and the second support part 2.
2 is supported on the upper side, and on the left side, a third support part 23 is supported on the upper side, side surface, and lower side. That is, support block 2
is constituted by three supporting parts 21 t2z +28, and is supported by the frame 1 in a state where they are mechanically joined together on both sides of the center in the width direction of the frame with a gap.

Another support block 2' has the same structure as the support block 2, and is fitted into the frame 1 from opposite sides to the support block 2, as shown in FIG. Each of the first, second, and third support portions 21 t2'l +22 +2z' r 2s
+ 23' can be fitted into each other from the opposing inner ends with a fixed length crossed.

Next, the drive mechanism for moving the support block will be described. In this example, this is configured as a binion rack mechanism, including a rack 111 provided on the support blocks 2, 2', a pinion 112 engaged with rack I [13], and a binion l1
14 in opposite directions via bevel gears 15 and 16, the support blocks 2, 2' are moved in opposite directions. 17 is a motor, and 18 is a reverse rotation prevention device.

In this embodiment configured as described above, the support block 2
, 2' are long on the opposite inner end sides and are fitted into each other in a deep intersecting state, so that the length of the frame 1 can be shortened. Also, Binion ■12, Pinion 1
114 is biased toward the corresponding support flock side, rack 11 and rack 113 can be shortened.
It was also possible to prevent the rack on one side of the frame from protruding from the opposite end of the frame, making it possible to further reduce the length of the frame.

Note that the present invention is not limited to the embodiments described above, and in short, the structure of the pair of support blocks in the frame, which are each integrated with the pair of hanging arms, has a structure that has sufficient weight even when the frame is shortened. In order to provide support, the conventional support block structure is designed to maintain a long support fit relationship with the frame, and due to the functional problem of allowing the suspension arms to expand and contract within a certain range, This solves the problem of the inner ends of the pair of support blocks colliding with each other when the hanging arm is retracted and closed, by providing the pair of support blocks so that they fit into each other in an intersecting manner without interfering with each other. The length of the frame can be shortened, and problems caused by interference between adjacent coils and the frame when stacked coils are lifted or lowered are greatly improved, and effective use of coil storage area is achieved.

In addition to the above configuration, the present invention also provides a configuration that prevents the rack on one support block from protruding beyond the opposite end of the frame when the drive mechanism for moving the support block is a one-nion rack mechanism. By doing so, the frame can be further shortened.

〔Effect of the invention〕

As described above, according to the present invention, in a frame-type coil lifter, the length of the frame can be shortened, and the interval between adjacent coils when stacking coils can be limited to the necessary minimum, and the effective use of the coil storage space can be achieved. It has many advantages, and its usefulness is extremely great.

[Brief explanation of the drawing]

FIG. 1, FIG. 2, and FIG. 3 are a front view, a side view, and a perspective view, respectively, of an embodiment of the coil lifter of the present invention. FIG. 4 is a front view of a conventional example of a frame-type coil lifter, and FIG. 5 is a front view of a conventional example of a link-type coil lifter. 1...Frame 2.2'...Support block 2
1t21'...First support block 22.22'...Second support block 23+23'...Third support block 3.3'...Hanging arm 4.4'...Claw 5... Hanging part 6... Coil 7... Upper guide rail 8... Side guide rail 9... Lower guide rail 10... Spacer 11... Rack 112...
Binion I 13... Rack ■ 14... Pinion ■ 15... Bevel gear 16... Bevel gear 17
...Motor 18...Reverse rotation prevention device 19...Bevel gear 20, 20'...Urrr.

Claims (1)

[Scope of Claims] 1. A horizontal frame having an approximately ■-shaped cross section with both ends open in the longitudinal direction, and a pair of elongated frames that are incorporated into the frame and are movable while maintaining the fitted state in the longitudinal direction. a suspension arm that hangs from opposite outer ends of the pair of support blocks and has claws for hanging the coil that face inward at the lower end; What is claimed is: 1. A coil lifter comprising a drive mechanism for moving the pair of support blocks in a direction, the coil lifter being characterized in that the pair of support blocks are fitted into each other in a crosswise manner for a certain length from opposing inner ends. 2. A horizontal frame having an approximately ■-shaped cross section with open ends in the longitudinal direction, a pair of elongated support blocks that are incorporated into the frame and are movable while maintaining a fitted state in the longitudinal direction; a hanging arm that hangs down from opposing outer ends of the pair of support blocks and has claws for hanging the coil that face inward at the lower end; and a drive mechanism that moves the pair of support blocks in opposite directions with respect to the longitudinal direction of the frame. and a coil lifter comprising: the pair of support blocks are provided so as to fit into each other in a crosswise manner by a certain length from the opposing inner ends, the drive mechanism is configured as a pinion rack mechanism, and the drive mechanism is configured as a pinion rack mechanism; A coil lifter characterized in that it has a pair of pinions that engage separately with racks installed along the longitudinal direction of the frame, and the pinions are spaced apart in the longitudinal direction of the frame and biased toward the corresponding support block. .