Stick structure
AssigneeCrystal Industrial Co., Ltd.
InventorShinichi Uemura
Life of this patent
Estimating the term…
Abstract
Stick structure which is resiliently extensible and adjustable in length. The adjustment of length of the stick can be easily achieved by both right-handed and left-handed users. The stick includes multiple fitting tubes nested in each other and an adjusting/locating device and a resilient extensible device disposed at the fitting sections of the fitting tubes. When clockwise or counterclockwise rotating any of the fitting tubes, the rotary body is rotated along therewith to forcedly stretch apart the damper to tightly abut against the inner circumference of another fitting tube so as to easily adjust the length of the stick and fix the stick. In addition, in accordance with different using environments, the stick is freely resiliently extensible to a certain extent.
Claims3
Stick structure comprising multiple fitting tubes nested in each other and an adjusting/locating device and a resilient extensible device disposed at the fitting sections of the fitting tubes, said stick structure being characterized in that:
- the resilient extensible device includes a spring, a shaft insertion section and an adjustment shaft, the spring being freely compressible and restorable and fitted around the adjustment shaft, the lower end of the adjustment shaft being formed with two opposite radial through holes through which an insertion pin is inserted;
- and
- the shaft insertion section is up and down slidably fitted with the adjustment shaft, the upper end of the shaft insertion section being formed with an annular retaining groove, the circumference of the shaft insertion section being formed with a long and a short axial escape slots and a shorter restraining perforation between the long and short escape slots.
Dependencies are inferred from the claim text.