JPS6037037B2 - Hanging equipment opening/closing device for cargo handling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically opening and closing a cargo handling sling for hoisting an object to be transported via a plurality of ropes.

Conventionally, in order to transport objects such as steel plates using overhead cranes, the upper ends of multiple ropes are hooked onto the hooks of the crane, and claws or the like attached to the lower ends of each rope are attached to the object. Then lift it up and move it.

For example, in FIG. 1a, four ropes 2 are connected to the hanging rod 2a hooked by 11 hooks via metal fittings 2b, and the lower end of each rope 2 is connected to a fishhook-shaped hook via a connecting rod 3a. 3 are attached to each, and tension rods 4, 4 are attached between the two connecting odors 3a to maintain a constant distance.
Equipped with: As shown in Fig. 1b, the steel plates A, which are the objects to be transported, are stacked so that they are alternately shifted in the horizontal direction by the length of the portion on which the claws are hooked. To lift with the pair of left and right hanging tools 5 shown in Figure 1, first hook the claw 3 of one of the hanging tools 5 onto one side of the steel plate A as shown in Figure 1c, and lift it up in a slightly inclined shape as shown in the figure. After hanging it on one side and inserting board B into this raised part,
As shown in Fig. 1d, the steel plate A is lowered so that it is placed on the board B, and then, as shown in Fig. 1e, the left and right hangings 5 and 6 are hooked to both sides of the steel plate A, and the book is placed on the board B. It is designed to be hung. And to hang this book,
First, the crane is moved to move the hook 1 to the upper center of the steel plate A, and then each claw 3 is manually hooked onto both sides of the steel plate A to be attached. Then, the hook 1 is gradually raised, but until the steel plate A is completely lifted from the board, each claw 3 must be held down manually or separately to prevent the claws 3 from falling off the steel plate A. The connector 3a must be pulled outward by the rope. In particular, at the moment when the steel plate A lifts up from the board, the steel plate A moves horizontally due to the misalignment between the hook 1 and the center of gravity of the steel plate A, so the claw 3 is most likely to fall off. This is the most dangerous situation for the operator performing the operation. The present invention has been made in view of the above-mentioned circumstances, and is a simple and inexpensive opening/closing device of this type that can automatically open and close the hanging odor and perform cargo handling operations safely, quickly, and reliably. It provides: Embodiments of the present invention will be described below based on the drawings.

FIG. 2 is a perspective view showing an embodiment in which the opening/closing device of the present invention is attached to the conventional hanging device shown in FIG.

In FIG. 2, a rotating rod 6a with circular pipes etc. arranged in parallel,
6a and a connecting rod 6b that connects the center of both rotating rods, the arm sections 6, 6 are formed into a substantially Japanese shape, and a boss 7 having a shaft hole 7a is attached to each end of the rotating rod. The cylindrical double tensioned rods 4, 4 and the connecting shaft 8 pass through these shaft holes 7a, so that they are connected in a generally mountain-like shape when viewed from the front and are rotatably connected at each apex. Connecting shank 6b,
A telescopically driven cylinder 9 arranged substantially horizontally below between 6b and perpendicular thereto connects support shafts 10, 10 provided at both ends of the cylinder and the vicinity of the center of both connecting rods 6b, respectively. It is rotatably attached by connecting members 11, 11. Rod 9a of cylinder 9
The connecting member 11 on the right side in the figure attached to the side is formed into a substantially L shape so as to extend in the direction of extension of the rod 9a, and the support shaft 10 at one end is closer to the arm member 6 than the connecting rod 6b at the other end. They are connected so that they are located outside of the
Further, a belt-shaped guide portion 12 extending substantially parallel to the cylinder 9 is fixed to this connecting portion village 11 . In FIGS. 2 and 3, the connecting member 11 on the left side of the other figure consists of two parallel flat plates, and two pieces are arranged horizontally in the center between the flat plates. rollers 13, 13
are supported by roller shafts 13a, 13a.

The guide member 12 described above has a long groove 12a along the longitudinal direction.
A roller 13 is inserted into the long groove 12a so as to be movable. Therefore, the guide member 12 is
It can move along the roller 13, which is an engaging member, while maintaining a substantially right angle with the connecting portion village 11. Therefore, when the cylinder 9 is driven to expand and contract, the accompanying change in the distance between the support shafts 10, 10 remains unchanged between the connecting rods 6b, 6b.
This appears as a change in the distance between the two arm members 6.
, 6 are driven to open and close using the connecting shaft 8 as a fulcrum.
Note that even when the cylinder 9 is in the most contracted state, the support shaft 1
Although the distance between 0 and 10 cannot be zero, one of the support shafts 10 is located outward from the connecting rod 6b, and the L-shape on the right side of the figure extends in the rod extension direction of the cylinder 9. By appropriately selecting the shape and dimensions of the connecting member 11, the distance between the connecting rods 6b, 6b can be made zero. Therefore, by using a cylinder 9 with a sufficiently large stroke, it is possible to arbitrarily drive the opening/closing angle of both arm members 6 in the range of 0 degrees to 180 degrees. Although the cylinder 9 used here is an electric cylinder and is supplied with electric power from a cable 9M, it is also possible to use a pneumatic cylinder, a hydraulic cylinder, etc. in addition to this. To use the hanging device opening/closing device configured as described above, the cylinder 9 is driven to extend and retract to open the space between the left and right claws 3 wider than the width of the object A, and each claw 3 is moved around the object A to be transported. After moving to a position corresponding to the side surface, when the cylinder 9 is contracted, the claws 3 are closed and attached to the transported object A. In this case, the pawl 3 is driven to open and close in response to the expansion and contraction drive of the cylinder 9, so the opening and closing positions of the pawl 3 can be easily controlled. Since the cylinders 9 are stranded together and no unbalanced load is applied to the cylinder 9, even a small cylinder can be sufficiently driven and has a long life. Furthermore, by positioning the connecting rod 6b close to the connecting shaft 8, the opening/closing angle of the pawl 3 can be made sufficiently large even in the cylinder 9 with a short stroke. Furthermore, if the hook 1 is raised and lifted with the hook 3 closed and the object A grasped, the tension applied to the rope 2 may cause an external force to be applied in the direction of reducing the angle between both arm members 6.

In order to prevent this, the claws 3 may be closed a little more than before when they are attached to the transported object A, or the cylinder 9 may be operated to contract by a minute stroke when lifting. Alternatively, the upper side of the approximately L-shaped connecting member 11 may be configured to be expandable and retractable by interposing a spring or the like, or a pneumatic cylinder may be used as the cylinder 9, and the above-mentioned It is also possible to absorb external force. In this embodiment, two rollers 3 are used as the engaging members, but instead of this, a sliding member that can slide into the innermost groove 12a may be used, or a sliding member may be used as the engagement member.
may be extended to the vicinity of the rod 9a of the cylinder 9, and another engagement member may be provided at the other end of the cylinder tube. Furthermore, the guide member 12 is cylindrical. It is also possible to use a bushing that is slidably attached to the rod as the engagement member. Furthermore, in this example,
Although we have explained the case where four ropes 2 are used, it is also possible to use other than four ropes, and chains, wires, etc. may be used in place of the ropes 2, and claws of various shapes can also be used. can.

As described above, according to the present invention, a pair of hanging tools 5 are provided on the left and right, each consisting of a pair of fishing hooks 3 connected to the tip of a hanging rope, and a tension rod 4 that holds the pair of fishing hooks at a required interval.
In this hanging device for cargo handling in which the transported object A is suspended between the left and right hanging rods, the lower end thereof is pivotally connected to the tension rod 4, and the upper end thereof is pivotally connected to the connecting shaft 8. A pair of arm members 6, 6 corresponding to a substantially mountain-shaped shape when viewed from the front are interposed between the left and right hanging tools 5, 5, and connecting members 11, 11 are attached to both arm members 6, 6, respectively. A drive cylinder 9 is connected with a pin support between both connecting portions, and the distance between the hanging tools 5, 5 supported by both arm members can be freely moved wide and narrow by the telescopic drive of the drive cylinder 9. As a result, the opening and closing of the lifting equipment, that is, the work of suspending the transported object, can be performed automatically, safely and quickly by remote control, and the lifting equipment can be opened and closed automatically, safely and quickly by remote control. When the steel plates A, which are objects to be transported, are stacked in a staggered manner, it is possible to smoothly perform the single hanging operation to the final hanging operation of the steel plates A, which is extremely practical.

Further, according to the present invention, one end of the guide member 12 is fixed to one of the connecting portions 11 in parallel with the drive cylinder 9,
The other end is engaged and connected to the other connecting member 11 so that the connecting member 11 can move relatively along the guiding member 12 while the member 11 and the guiding member 10 maintain a constant intersection angle. Therefore, during the suspension work, the load of the arm members 6, 6 is supported by the guide member 12, no unbalanced load acts on the drive cylinder 9, and only the opening and closing of the arm members 6, 6 is borne. This is a good thing, and even a small drive cylinder can be used satisfactorily and has a long life. Further, according to the present invention, at least one of the connection members 1 of the two connection portion villages 11, 11 is provided.
1 extending in the direction of extension of the drive cylinder 9, the hanging tool can be opened and closed over a wide range regardless of the shape and size of the drive cylinder. Furthermore, according to the present invention, since the guide member 12 and the drive cylinder 9 are mounted substantially horizontally (laterally) between the arms 6, 6, the sitting height of both arm members, that is, the vertical direction There is no need to increase the length, and as a result, the lifting distance (as much as tin) does not become long, so the capacity for stacking and accommodating objects to be transported in a warehouse or the like will not be reduced.
Moreover, according to the present invention, there is provided a hanging odor device for cargo handling, that is, a hanging loaf, which has been widely used in the past.

A pair of hanging tools 5 are provided on the left and right sides, each consisting of a pair of fishing hooks 3, 3 connected to the tip and a tension rod 4 that holds the pair of fishing hooks at a required interval. If it is a hanging device that suspends a transported object, the above-mentioned tension rod 4
.

[Brief explanation of the drawing]

FIG. 1a is a perspective view showing an example of a conventionally used hanging device, FIGS. 1b to 1e are explanatory views showing the suspension work order, and FIG. 2 is a perspective view showing an embodiment of the present invention. 3 are partially enlarged front views of an embodiment of the present invention. A...Object to be transported, 2...Hanging rope,
4...Tension rod, 5...Hanging tool, 6...
Arm member, 8... Connection shaft, 9... Drive cylinder, 11... Connection member, 12... Guide member. Figure 1 Figure 3 Figure 2

Claims (1)

[Claims] 1 A pair of slings are provided on the left and right, consisting of a pair of fishing hooks connected to the end of the hanging rope and a tension bar that holds the pair of fishing hooks at a required distance, and the object to be transported is suspended between the left and right slings. In the cargo handling sling device, the lower end thereof is pivotally connected to the tension rod, and the upper end thereof is pivotally connected to the connecting shaft, so that a pair of arm members corresponding to a substantially mountain shape in front view are connected to the left and right sides. A connecting member is pivotally connected to both arm members, a drive cylinder is pivotally connected between both the connecting members, and a guide member is connected parallel to the drive cylinder with one end of the guide member being connected to one end of the guide member in parallel with the drive cylinder. An engagement connection that is fixed to a connecting member and has its other end attached to the other connecting member so that the connecting member can relatively slide along the guide member while maintaining a constant intersection angle between the member and the guide member. and at least one of the two connecting members is formed to extend in the direction of extension of the drive cylinder.