Abstract: Electronic equipment installed outdoors to house an internal unit is provided, meeting the waterproof standard and having an easily replaceable structure of the internal unit. The electronic equipment has an enclosure having a cover and a case with an opening and an air vent, and an internal unit in which an electronic component is mounted. The internal unit has a heat sink and radiation fins for releasing heat generated by the electronic component. The fins are inserted into the opening. The heat sink has a draining portion formed below the fins in a direction perpendicular to an extending direction of the radiation fins, a groove for waterproofing around the fins except an upper portion thereof, and two protrusions for fitting above the fins. The case has a rib for waterproofing around the opening except an upper portion thereof, and two holes for fitting above the opening.

Abstract: Electronic equipment installed outdoors to house an internal unit is provided, meeting the waterproof standard and having an easily replaceable structure of the internal unit. The electronic equipment has an enclosure having a cover and a case with an opening and an air vent, and an internal unit in which an electronic component is mounted. The internal unit has a heat sink and radiation fins for releasing heat generated by the electronic component. The fins are inserted into the opening. The heat sink has a draining portion formed below the fins in a direction perpendicular to an extending direction of the radiation fins, a groove for waterproofing around the fins except an upper portion thereof, and two protrusions for fitting above the fins. The case has a rib for waterproofing around the opening except an upper portion thereof, and two holes for fitting above the opening.

Abstract: In an electronic apparatus in which plural substrates are arranged in a perpendicular direction between plural cooling fans in a lower part of a case and plural temperature sensors in an upper part of the case, any temperature variation by 2° C. in three seconds detected by any one of the temperature sensors is determined to be abnormal, and thermal energy is caused to be discharged from surfaces of substrates on two sides of a flame by raising air flow rates of fans. Expansion of the flame to other substrates is thereby prevented.

Abstract: There can be realized a compact optical network unit with an optical cable provided between an optical cable housing and an optical video terminal housing. When the optical video terminal housing is opened and closed by rotating 90 degrees or more about hinges connecting the two housings, the extra length of the optical cable is absorbed in an optical cable length adjustment portion of the optical video terminal housing as well as in an optical cable housing portion. Thus, the optical cable can be smoothly moved through a cable guide which is a base point of the movable portion of the optical cable, without an operation to prevent the optical cable from being stuck.

Abstract: In an electronic apparatus in which plural substrates are arranged in a perpendicular direction between plural cooling fans in a lower part of a case and plural temperature sensors in an upper part of the case, any temperature variation by 2° C. in three seconds detected by any one of the temperature sensors is determined to be abnormal, and thermal energy is caused to be discharged from surfaces of substrates on two sides of a flame by raising air flow rates of fans. Expansion of the flame to other substrates is thereby prevented.

Abstract: A brake cable connecting apparatus having a cable end insertion groove 120a formed by U-like folding the free end of a brake lever 120 on one of brake shoes 1, 2 and a guiding member 150 provided onto the cable end insertion groove 120a. The guiding member 150 tends to move toward the bottom of the insertion groove 120a by a coil spring 160. When the cable end 142 is advanced in the insertion groove 120a, the guiding member 150 moves upward, passage of the cable end 142 is permitted by displacement of the guiding member 150 in a direction away from the bottom of the insertion groove 120a, then the guiding member 150 immediately moves downward, thereby engaging a backward surface of the cable end 142; therefore, restricting the cable end 142 from coming off.

Abstract: A drum brake device having a brake lever with sufficient rigidity, and securing a larger space at a central region of a brake in order to provide a long, effective brake lever stroke. A by-pass hole 60d, through which the shoe-hold pin 41 swingably rising from the back plate penetrates, is formed in the brake lever 60 positioned beneath the shoe web 20b of the brake shoe 20, and the bending sections 60e, 60f, 60g are integrally formed toward the back plate 10 at the outermost circumferential edge portion of the brake lever 60 surrounding the by-pass hole 60d.

Abstract: A drum brake device having a brake lever with sufficient rigidity, and securing a larger space at a central region of a brake, to provide a large effective brake lever stroke. A by-pass hole 60d, which is freely penetrated by a shoe-hold pin 41 which swingably rises from the back plate is formed in the brake lever 60 positioned beneath the shoe web 20b of the brake shoe 20, and a section of the brake lever 60, surrounding the by-pass hole 60d, is formed in a hollow cavity 60e by drawing or in a groove 60f by bending to be positioned closer to and facing toward the back plate 10.

Abstract: A brake structure that prevents damaging the shoe-hold mechanism by way of securing a larger space at a central region of the brake and achieves a long effective and stable brake function. A by-pass hole 60d, through which the shoe-hold pin 41 is freely penetrating, is formed in the brake lever 60 positioned beneath the shoe web 20b of the brake shoe 20, and the stopper portion 60e contacting the shoe rim 20a is formed on the brake lever 60 so as to avoid the collision between the shoe-hold pin 41 and the by-pass hole 60d when the brake lever 60 is in operation.

Abstract: A brake cable-connecting apparatus for a drum brake, having a simplified structure and designed to permit a cable end to be steadily seated on a brake lever, thereby providing improved durability of an inner cable, and to further positively holds a brake cable in position, which otherwise would be disengaged from the brake lever. A drum brake comprises: slanted surfaces 27c, 28c for permitting an inner cable 29a to be deflected while a cable end 29b of a brake cable 29 is slid along an outer edge of a free end 26a of a brake lever 26, the cable end 29b being advanced from a direction in which the brake cable 29 is pulled, to a opposite direction in which the brake cable 29 is pulled; and, an opening formed in series with a cable-receiving groove 26b for receiving the inner cable 29a.

Abstract: A brake cable mounting structure for a drum brake has sufficient support to withstand the reaction force during the brake operation, a function to prevent damage to an inner cable and to prevent water ingress into the brake, a simple structure with less number of parts, and a low-cost advantage. Tubular members 10a, 10b are integrally formed on a back plate 10 by pressing, and a casing cap 22a of an outer casing 22 constituting a brake cable 20 is attached in the tubular members 10a, 10b.

Abstract: A shoe clearance over-adjustment prevention apparatus employable to various types of automatic shoe clearance adjustment devices and drum brakes and designable to have a common thermo-sensitive member suitable for mass production. The thermo-sensitive member 60 is sandwiched between the strut 20 and the brake lever 30 to cause a functional engagement, and if the brake temperature reaches a predetermined value or range, the strut 20 is pushed toward the brake shoe 12 so as to disable the automatic shoe clearance adjustment operation.

Abstract: It is an object of this invention to provide a mechanical drum brake device which prevents a cable end from coming off from a brake lever without requiring an improvement in the brake shoe or the brake lever and an additional part. To that end, the lever return spring stretched between the brake shoe and the brake lever is utilized to restrict the lengthwise travel of the cable end along the shoe rim of the brake shoe.

Abstract: A brake cable mounting structure for a drum brake has sufficient support to withstand the reaction force during the brake operation, a function to prevent damage to an inner cable and to prevent water ingress into the brake, a simple structure with less number of parts, and a low-cost advantage. Tubular members 10a, 10b are integrally formed on a back plate 10 by pressing, and a casing cap 22a of an outer casing 22 constituting a brake cable 20 is attached in the tubular members 10a, 10b.

Abstract: A drum brake device having a brake lever with sufficient rigidity, and securing a larger space at a central region of a brake, to provide a large effective brake lever stroke. A by-pass hole 60d, which is freely penetrated by a shoe-hold pin 41 which swingably rises from the back plate is formed in the brake lever 60 positioned beneath the shoe web 20b of the brake shoe 20, and a section of the brake lever 60, surrounding the by-pass hole 60d, is formed in a hollow cavity 60e by drawing or in a groove 60f by bending to be positioned closer to and facing toward the back plate 10.

Abstract: A drum brake device having a brake lever with sufficient rigidity, and securing a larger space at a central region of a brake in order to provide a long, effective brake lever stroke. A by-pass hole 60d, through which the shoe-hold pin 41 swingably rising from the back plate penetrates, is formed in the brake lever 60 positioned beneath the shoe web 20b of the brake shoe 20, and the bending sections 60e, 60f, 60g are integrally formed toward the back plate 10 at the outermost circumferential edge portion of the brake lever 60 surrounding the by-pass hole 60d.

Abstract: A brake structure that prevents damaging the shoe-hold mechanism by way of securing a larger space at a central region of the brake and achieves a long effective and stable brake function. A by-pass hole 60d, through which the shoe-hold pin 41 is freely penetrating, is formed in the brake lever 60 positioned beneath the shoe web 20b of the brake shoe 20, and the stopper portion 60e contacting the shoe rim 20a is formed on the brake lever 60 so as to avoid the collision between the shoe-hold pin 41 and the by-pass hole 60d when the brake lever 60 is in operation.

Abstract: A brake cable mounting structure for a drum brake, in which even if the distance from the brake mounting surface to the center of the brake shoes in the width direction is short, the layout of the brake cable mounting section and the mechanical expander is efficient and effectively provided. Further, the anchor only need to support the braking force, thereby making the device smaller and lighter. The brake cable mounting structure of this invention is characterized in that the inner cable of the brake cable extends out from the brake; and the guide pipe on which the outer casing of the brake cable is integrally fixed with the back plate.

Abstract: It is an object of this invention to provide an automatic shoe clearance adjustment device for a drum brake mechanism designed to improve its durability by eliminating a gap, which is caused due to the manufacturing tolerances between the operating end surface of a brake shoe and the extended portion of an adjustment lever. To that end, a long hole (81) is formed to extend horizontally in the actuating direction of a service brake actuator (50); and the adjustment lever (80) is pivotally supported via a pin (14) with a capacity of making a rotation relative to the brake shoe (20) and a capacity of making a relative slide in approximately the same direction in which the service brake actuator (50) operates.

Abstract: A shoe clearance over-adjustment prevention apparatus employable to various types of automatic shoe clearance adjustment devices and drum brakes and designable to have a common thermo-sensitive member suitable for mass production. The thermo-sensitive member 60 is sandwiched between the strut 20 and the brake lever 30 to cause a functional engagement, and if the brake temperature reaches a predetermined value or range, the strut 20 is pushed toward the brake shoe 12 so as to disable the automatic shoe clearance adjustment operation.