JP3029726U - Lifting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to put a lifting device on the market that allows one person to safely and reliably carry a load. [Structure] A chain of fixed length with a hook at the lower end is used with a coil spring, and the chain is attached so that the chain is always wound at symmetrical arm rods centered around the lifting tool. To do.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lifting tool used for lifting an object.

[0002]

[Prior art]

 FIG. 3 shows a conventional lifting state of an object, and a lifting tool in which hooks 2 are attached to both ends of a wire 1 having an appropriate length is generally used.

[0003]

[Problems to be solved by the device]

 In order to hoist the can body or the basket body 3 by using the hoisting tool, while holding the engaging parts p 1, p 2 of the hooks 2, 2 by hand, operating a switch of a hoisting device such as an electric hoist (not shown) and lifting. However, there is a problem that the tips of the hooks 2 and 2 come off due to the weight of the hooks 2 and 2 when the engaging parts p and p of the hooks 2 and 2 are not pressed by hand. It is difficult to do the work, and for safety reasons, it is a work of two or more people to place a person on each hook 2, 2. The present invention has been devised so that the above work can be performed safely and reliably by one person.

[0004]

[Means for Solving the Invention]

 In the present invention, a chain spring having a fixed length with a hook at the lower end is used by using a coil spring, and the chain is attached so that the chain is always wound at symmetrical arm rods centering on the lifting tool.

[0005]

[Action]

 When the engaging part p of the hook 2 is hooked on the load and the hand is released, the hook 2 is lifted up by the action of the coil spring, so that the hook tip may be disengaged from the engaging position by its own weight. There is no.

[0006]

【Example】

 FIG. 1 is a front view of a lifting device 5 according to the present invention. Reference numeral 6 denotes a chain having a constant length, a hook 2 is attached to a lower end of the chain 6, and an upper end thereof is attached to an outer peripheral end of a chain wheel 7 having a winding spring accommodated therein. Here, the chain ring 7 imparts a turning force for constantly rotating the chain 6 in a direction of pulling up the chain 6 through a winding spring with respect to a shaft 9 provided at an end portion of an arm rod 8 having a constant length. In addition, a recess g is formed on the outer periphery of the chain ring so that the chain 6 can be fitted into the chain ring during rotation.

Although one of the arm rods 8 has been described above, the other arm rods 8 are similarly configured, that is, the locking ring 11 provided in the central portion of the arm rods 8 is symmetrically arranged. And In the present invention, the distance by which the hook 2 is raised and lowered by the winding force of the winding spring 10 is in the range of about 3 to 10 cm.

FIG. 2 is a use state diagram, and in order to lift the basket 3, the hooks 2 are pulled down with one hand or both hands, and the tip of the hook is engaged with the basket 3. However, in the present invention, since the upper end of the chain 6 is provided with the winding force of the winding spring 10, the hook tip engaged in a slightly lowered state moves upward even if the hand is released by the action of the pulling force. The engaged state does not become disengaged.

Therefore, even if the worker moves to another place, the hook 2 is not disengaged, and even one worker can properly engage the hooks 2 and 2. When both hooks 2 and 2 are engaged, the lifting machine is operated by a switch to lift the cage 3.

After moving to the destination, the hooks 2 and 2 are removed in the reverse order of the above-mentioned operation. Since the hooks 2 and 2 maintain the hooked state, the hooks 2 and 2 do not slip off and come into contact with surrounding articles or damage.

[0011]

[Effect of device]

 The present invention is configured as described above, and since it can be safely and reliably carried out even by one person, it greatly contributes to labor saving.

[Brief description of drawings]

FIG. 1 is a front view of the device of the present invention.

FIG. 2 is a use state diagram.

FIG. 3 is a diagram showing a conventional product in use.

[Explanation of symbols]

 2 Hook 5 Lifting tool 6 Chain 7 Chain ring 8 Arm rod

Claims (2)

[Scope of utility model registration request] 1. A structure in which a chain spring having a fixed length with a hook at the lower end is attached to a chain spring at a symmetrical symmetrical arm rod centered around a lifting tool by using a coil spring. A characteristic lifting tool. 2. The distance by which the hook is raised and lowered by the winding force of the winding spring is about 3 to 10 cm.
The listed lifting equipment.