초록 ▼

A laser line device suitable for construction. The laser line instrument automatically aligns a vertical laser beam so that the beam is perpendicular to the earth's core. The laser module is connected to a pendulum which serves to automatically level the device. The pendulum is damped by permanent m

A laser line device suitable for construction. The laser line instrument automatically aligns a vertical laser beam so that the beam is perpendicular to the earth's core. The laser module is connected to a pendulum which serves to automatically level the device. The pendulum is damped by permanent magnets. The bearing on which the pendulum is mounted serves as a portion of the electrical circuit of the device.

대표청구항 ▼

[ What is claimed:] [1.] An automatic laser plumb line generating device comprising:a laser line generator module mounted on a pendulum, said pendulum is suspended in a housing means,a pendulum swing damping mechanism, andan electrical power supply; whereina rigid suspending means affixed to said ho

[ What is claimed:] [1.] An automatic laser plumb line generating device comprising:a laser line generator module mounted on a pendulum, said pendulum is suspended in a housing means,a pendulum swing damping mechanism, andan electrical power supply; whereina rigid suspending means affixed to said housing means supports said pendulum, said suspending means provides positive and negative contacts for a power supply circuit of said laser line generator module, thereby eliminating any need for wires to extend from said laser line generator module, which reduces variation in a swing path of said pendulum.