JPS6032060Y2 - Hook for loading and unloading luggage - Google Patents

Description

[Detailed description of the invention] This invention is an improvement to the hook used when lifting and lowering tools, materials, etc. from the ground to the work area on utility poles or steel towers during work such as power transmission line construction and distribution line construction.

Conventionally, this type of hook was simply long enough to hang a load onto the hook.

Today, the materials used in power transmission and distribution line construction are becoming larger and heavier each year, and there is a risk that the hooks of conventional hooks for lifting and lowering loads may become deformed and open during lifting or lowering.

There was also a risk that the hook would overturn during hoisting and unloading, causing the cargo to fall.

Therefore, the object of the present invention is to eliminate and improve the drawbacks of conventional hooks and provide a safe hook that can withstand lifting and lowering of heavy objects.

Embodiments of the present invention shown in the accompanying drawings will be described in detail below.

As shown in the figure, the main pillar 3 is provided with ring parts 1 and 2 at both upper and lower ends, and a hook part 4 is provided protruding to one side from the lower end of the main pillar 3. guide arm 5
An opening/closing rod 6 whose tip end is releasably hooked onto the hook 4 and whose proximal end protrudes toward the guide arm 5 is pivoted to the main column 3, and the proximal end of the opening/closing rod 6 is attached to the tip end. A locking rod 7 having a hook portion 71 for locking is pivotally connected to the main pillar 3, and the opening/closing rod 6 is provided with a spring 61 that biases it in the direction of opening. A spring 72 is provided that biases 6 in the direction of locking and locking.

The main body is made by bending one end in one direction using a rod-shaped body A to form a ring part 1, and by curving the other end in the opposite direction to provide a hook part 4, and by using another rod-shaped body B to curve one end in one direction. A guide arm 5 is bent to the side and has a spiral guide part 51 at the end, and the straight part of the rod-shaped body A, B is fixed or By welding, a main body C is formed as the main pillar 3.

In addition, the opening/closing rod 6 has two plates 63, 63 attached parallel to each other with the main column 3 in between, and the tip, base, and other parts are connected with rivets 62.
etc., and the rivet 62 at the other end is unlatched to the tip of the hook part 4, and the rivet 62 at the base end is hooked to the hook 71 of the locking rod 7, and the rivet 62 is unlatched to the hook 71 of the locking rod 7. It has a structure in which an operating ring 73 is provided at the center of the stop rod 7 and its base end is rotatably attached to the main column 3 via a mounting base 74 or the like.

This project has the above structure, and one end of the rope R hung on the pulley 9 attached to the cross arm of a telephone pole etc. is connected to the hook 1 for lifting and lowering the load.
After the other end of the rope R is inserted into the guide arm 5, the rotary hook 8 attached to the end thereof is hooked onto the ring 2, and the operating ring 73 at the center of the locking rod 7 is attached to the spring 72 in the direction of the arrow E (see Figure 4), the lock with the opening/closing rod 6 is released, and the opening/closing rod 6 is rotated in the opposite direction of the arrow E by the elasticity of the spring 61 to open the hook portion. .

After that, hook a tool bag or other materials on the hook part 4 and open/close the lever 6.
When the hook portion 4 is closed by rotating it in the direction of arrow E against the spring 61, the hook 71 of the locking rod 7 fits into the base end of the opening/closing rod 6, and the opening/closing rod 6 is maintained in the closed state. .

In this state, as shown in Fig. 5, among the ropes R hanging down from the top of the column, the rope on the side that is inserted through the spiral part 51 of the guide arm 5 is operated, and the tools are hung from the hook of the present invention. It is used for lifting and unloading.

In this case, both ends of the rope R are connected to the upper and lower rings 1 and 2 of the hook to make the rope endless, so even if there are step bolts or other obstacles while lifting or lowering tools, the endless rope can be used. When operated by holding the lower end of the hoisted object, the lifted object is swung in the operating direction together with the rope and the proposed hook, making it possible to easily avoid obstacles.

If this is the conventional method of hanging tools at the end of the rope and pulling the other end, the object to be lifted is long enough to move up and down below the upper fulcrum of the rope, so if there is an obstacle, you can use the operating rope (commonly known as Tora Rope) in advance. ) had to be installed and operated by another worker.

The hook of this proposal will continue to have a labor-saving effect.

In addition, the hook of the present invention is provided with a spiral guide arm 5 which is inserted through the opposite side of the lifting rope, so that the gap between the endless ropes is always maintained, allowing smooth lifting and lowering operations, and the hook Even when a heavy object is hung from the hook 4, the guide arm 5 is inserted through the rope on the side where tension is applied, so the hook will not be overturned and it is safe.

In addition, the present invention provides an opening/closing rod 6 and a locking rod 7 for the hook portion 4 to close the hook portion 4 on which the lifted object is hung, to prevent the lifted object from falling during the lifting process, and to prevent the lifted object from falling during lifting. In order to facilitate operation in places, the opening/closing rod 6 opens when the locking rod 7 is removed, and the locking rod 7 automatically locks when the opening/closing rod 6 is closed, making the operation easy. It has remarkable effects such as being safe.

[Brief explanation of the drawing]

Figure 1 is a front view of the lifting/unloading hook, Figure 2 is its right side view, Figure 3 is a plan view, Figure 4 is a front view when the locking lever is operated and the opening/closing lever is opened, Figure 5 The figure is a usage state diagram. In the figure, numbers 1 and 2 are rings, 3 is the main pillar, 4 is the hook, 5 is the guide arm, 6 is the opening/closing rod, 31 is the spring, 62 is the bevel, 63 is the plate, and 7 is the locking rod. , 71 is a hook, 2 is a spring, 73 is an operating ring, 74 is a mounting base, 8 is a rotation hook, 9 is a pulley, 10 is a hook for lifting and lowering, and R is a rope.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A hook portion 4 protruding from the lower end of the main column 3 having ring portions 1 and 2 at both upper and lower ends thereof to one side, and from the upper end of the main column 3 to the opposite side. A hook with a spiral guide arm 5 protruding from the top or a hook of a similar structure, with an opening/closing rod 6 whose tip end can be hooked onto the hook 4 and can be unlatched and whose proximal end projects toward the guide arm 5 side. Main pillar 3 formed by a plurality of rod-shaped bodies
A locking rod 7 having a hook 71 at its tip for locking the base end of the opening/closing rod 6 is pivotally connected to the main column 3,
The locking rod 7 is provided with a spring 61 that biases it in the direction of opening it, and the locking rod 7 is provided with a spring 72 that biases the opening/closing rod 6 in the direction of hooking and locking it. hook. 2 Using the rod-shaped body A, bend one end in one direction to form the ring part 1.
The other end is bent to the opposite side to provide a hook part 4, and one end is bent to one side using another rod-shaped body B to form a guide arm 5 having a spiral guide part 51 at the end. Practical use characterized in that the main body C is formed as the main column 3 by fixing or welding the straight parts of both rod-shaped bodies A-B, each of which has an annular part 2 with the other end curved in the same direction. A hook for lifting and lowering a load as set forth in claim 1 of the patent registration claim. 3 The opening/closing rod 6 is made by sandwiching the main pillar 3, attaching two plates 63°63 in parallel, and fixing the tip, base, and other parts with rivets 62, etc., and the rivet 62 at the tip is a hook. The utility model registration claim 1 or 2 is characterized in that the tip of the portion 4 is unlatched, and the rivet 62 at the base end is used to stop the locking rod 7. hook for loading and unloading luggage. 4 The locking rod 7 has a rivet 62 at the base end of the opening/closing rod 6 at its tip.
A utility model registration claim characterized by a structure in which a hook 71 is provided to stop the hook, an operating ring 73 is provided in the center, and the base end is rotatably attached to the main column 3 via a mounting base 74 etc. Range 1
The hook for lifting and unloading cargo according to item 2, item 3, or item 3.