摘要:
PROBLEM TO BE SOLVED: To provide a novel LED lamp technology with which an annular packing can be compressed by uniform and optimal pressure without managing fastening torque of a closing metal fitting seal screw, a closing metal fitting can be economically produced and efficiently utilized while preventing the closing metal fitting from being made large and heavy and manufacture and maintenance efficiency can be surely improved.SOLUTION: A closing metal fitting 1 for an LED lamp housing 6 comprises: a bracket 2 which is provided by extending, from a mounting seat 20 which can be fixed to a container-shaped body 7 of the LED lamp housing 6, a connection arm 23 including a seal screw hole 24, a counter stopper regulation part 25 and a stopper protrusion 26; and a hook 4 which is provided by extending, from a mounting seat 40 which can be fixed to an outer peripheral wall 93 of a lid-shaped transparent cover 9 of the LED lamp housing 6, a connection arm 43 including a bolt mounting hole 44, a stopper protrusion 45 and a counter stopper regulation part 46. A seal screw 5 is further provided for coupling/connecting the bolt mounting hole 44 of the hook 4 and the seal screw hole 24 of the bracket 2.
摘要:
PROBLEM TO BE SOLVED: To provide a lighting system and a mounting hole which can prevent looseness of a fastening member without using spring washer.SOLUTION: Looseness of a countersunk screw 60 can be prevented by pressing the countersunk screw 60 axially with elasticity caused by bending of an annulus part 52 of a mounting hole 50. Therefore, a lighting system 100 which can prevent looseness without using a spring washer as a separate member can be obtained. Because the mounting hole 50 comprises the annulus part 52, the mounting hole 50 which can prevent the looseness of the countersunk screw 60 by pressing the countersunk screw 60 axially with elasticity caused by bending of the annulus part 52 can be obtained.
摘要:
PROBLEM TO BE SOLVED: To provide a power-saving LED lighting having an irradiation direction adjustment mechanism of a screw base for achieving a street light for applying light to a wide range, such as an expressway having wide width with required illuminance, and to provide a street light using the LED lighting. SOLUTION: In the LED lighting, a luminous surface where a plurality of LEDs are disposed on a substrate is covered with a dust-proof, moisture-proof cover including the screw base. In the LED lighting, after fitting and fixing the screw base to an illuminator, the irradiation direction adjustment mechanism for adjusting luminous flux from the luminous surface in a prescribed irradiation direction is provided between the screw base and the substrate. COPYRIGHT: (C)2011,JPO&INPIT