Elongated tool support device and elongated tool support method

An elongated tool support device, comprising:

• a securing tool;
• a first shaft support that is disposed farther toward a distal side than the securing tool and that is configured to upwardly support a shaft portion of an elongated tool from below;
• a brace member disposed between the securing tool and the first shaft support, wherein the brace member includes a first portion that is connected to the securing tool, and a second portion that is connected to the first shaft support, and the second portion is connected such that an angle thereof is able to be adjusted and fixed about a first axis in relation to the first portion;
• a second shaft support that is attached to the brace member and that is configured to downwardly support the shaft portion of the elongated tool from above;
• a first angle adjustment mechanism that is configured to adjust an angle between the first portion and the second portion;
• and
• a second angle adjustment mechanism that is configured to adjust an angle between a longitudinal axis of the shaft portion when the shaft portion is supported by the first shaft support and the second shaft support, and a longitudinal axis of the second portion;
• wherein the second angle adjustment mechanism includes a cam member, a fall-preventing plate that prevents the shaft portion from falling from the cam member, and a groove formed on an outer peripheral surface of the cam member and being capable of receiving the shaft portion;
• wherein the second shaft support comprises:
• a contact part that is configured to come into contact with an upper surface of the shaft portion of the elongated tool, and
• an arm that connects the contact part and the brace member,
• wherein the arm is supported on the brace member in a cantilever manner.