LINE-MARKING DEVICE WITH POSITIONING DEVICES AND TRIGGER ACTIVATOR

摘要

A line-marking device (100) includes a chalk line (200) that is held in an elongated frame (170). A worker can position and align the device, then snap the line (200) using a manually operated trigger (650) to leave a mark on a surface (530), such as a wall or floor. An adjustable level device (115) on the frame (170) can be rotated to dial a desired angle for the line. The adjustable level device (115) may be provided in an angle setting device independently of the line-marking device. A laser device (125) may be carried at the tip (120) of (or elsewhere on) the frame (170) to allow the chalk line to be aligned with a reference mark (145). Respective markings (176, 177) on edge regions of rails (171, 174) of the frame (170) may indicate an angular setting of a guide bar (500), or, a protractor (810, 810a) may indicate the angular setting. The guide bar (500) may be relocated facing away from the filament (200) and used as an angle finding device. A retractable tape measure (1500) carried by the device enables a worker to measure distances from the chalk line.