Rod connecting device

Abstract

The aim of the invention is to provide a rod connecting device which can reduce the shaking or vibration of a plurality of rods at the connection state, can stably prolong or connect the plurality of rods without shaking or vibration, and is adapted for the high branch cutter. The rod connecting device of the invention connects the front end of a first rod (100) and the back end of a second rod (200) when the front end of the first rod (100) is inserted into the back end of the second rod (200). The first rod (100) is provided with a tubular front part (120) which forms a cutting groove (121) for diameter reducing, and a socket structure (300) which strengthens the tubular front part (120) from the periphery and reduces the diameter of the tubular front part (120) for closely jointing with the second rod (200) in the insertion state.

Description

technical field [0001] The present invention relates to a rod connecting device for interconnecting a plurality of rods. The rod connecting device of the present invention can be used for connecting rods of high-altitude branch cutting tools used for cutting branches of tall trees, for example. Background technique [0002] In general, as a method of obtaining long rods, there is a method of inserting the next rod into one rod to continuously increase the length of the rods one by one. [0003] However, the high-altitude branch cutting tool, which is a cutter for cutting high-altitude branches, requires a long handle (rod). As such a high-altitude branch cutting tool, there is a tool in which a saw or scissors are attached to the front end of a long handle formed to expand and contract freely. [0004] Japanese Patent Application Laid-Open No. 10-67001 provides a saw in which teeth are freely rotatably mounted on the front end of a freely expandable long handle. [0005] ...

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned existing high-altitude branch cutting tool cuts off high-altitude branches when extending a plurality of bars to lengthen the state, due to reasons such as gaps or looseness between the plurality of bars, unnecessary errors are likely to occur when the cutter action at the front end. Backlash or wobbling, problems with effort or difficulty in cutting off

In addition, there is a problem that the cutter cannot catch the branch accurately, and the cutting operation cannot be performed smoothly at the desired position.

Images