Abstract: A pneumatic tire has a tread pattern designed to provide improved heat dissipation properties, wear resistance, and uneven wear resistance. The tire has arranged in a tread (2) two circumferential fine grooves (10) disposed on opposite sides of the equatorial surface (CL) of the tire and extending in the circumferential direction of the tire, and the circumferential fine grooves (10) define a center land section (11). In the center land section (11) are formed oblique fine grooves (12) each having a first small groove (13) extending in the tire's circumferential direction, a second small groove (14) extending obliquely relative to the circumferential direction from one end of the first small groove (13) toward one circumferential fine groove, and a third small groove (15) extending obliquely relative to the circumferential direction from the other end of the first small groove (13) toward the other circumferential fine groove.

Abstract: A pneumatic tire has a tread pattern designed to provide improved heat dissipation properties, wear resistance, and uneven wear resistance. The tire has arranged in a tread (2) two circumferential fine grooves (10) disposed on opposite sides of the equatorial surface (CL) of the tire and extending in the circumferential direction of the tire, and the circumferential fine grooves (10) define a center land section (11). In the center land section (11) are formed oblique fine grooves (12) each having a first small groove (13) extending in the tire's circumferential direction, a second small groove (14) extending obliquely relative to the circumferential direction from one end of the first small groove (13) toward one circumferential fine groove, and a third small groove (15) extending obliquely relative to the circumferential direction from the other end of the first small groove (13) toward the other circumferential fine groove.

Abstract: To provide a pneumatic tire in which attainment of durability of a reinforcing layer and improvement of stability of a vehicle are both achieved while restraining degradation of ride comfort and, more specifically, to provide a heavy loading pneumatic tire suitably used in a construction vehicle or the like. A pneumatic tire including a carcass 2 having a body portion 2A extending between bead cores in a troidal shape and a folded-back portion 2B provided continuously therefrom and folded back around the bead cores, and a belt 3 arranged on the outside of the tire in the radial direction.

Abstract: The automatic gang switch having a heat ray sensor is fixedly mounted on a mounting frame having a generally rectangular opening. The length of a housing of the switch is approximately two thirds of that of the generally rectangular opening of the mounting frame, while the width of the housing is approximately equal to that of the generally rectangular opening of the mounting frame. The switch includes a human body detecting section for detecting heat rays emitted from a human body and a circuit section.

Abstract: A metallized film suitable for providing a self-preservative metallized film capacitor is prepared. A metallized stock film strip is provided which includes a dielectric film strip and a plurality of deposited metal segments formed thereon so that the deposited metal segments are generally separated from each other but with an electrical connection extending therebetween. The electrical connection is then removed by a short circuit energy or a subsequent slitting. As a result, a metallized film having metal segments deposited on a dielectric film strip can be produced efficiently while avoiding winding wrinkles and a lowering of the process speed.

Abstract: A pneumatic radial tire, particularly for a construction vehicle, has a carcass ply arranged toroidally between a pair of bead cores, containing rubber coated steel cords disposed radially therein, being turned up around each bead core from the inside to the outside of the tire and the turn-up portion of which around each bead core extends to around 1/2 height of the tire height H. When the radical length of an overlapping portion of the turn-up portion of the carcass ply and the main carcass ply is h.sub.1 and the thickness of the overlapping portion is w.sub.1 within a range of .+-.0.1 H having half height H/2 of the tire height H as the center, the radial length h and the thickness w of a reinforcing rubber material arranged between the turn-up portion of the carcass ply and the main ply satisfy the following formulae(1) 0.2w.sub.1 .ltoreq.w.ltoreq.1.0w.sub.1, and(2) 0.5h.sub.1 .ltoreq.h.ltoreq.1.0h.sub.