Abstract: Provided is a redundant system capable of executing a start request received during update of a microcomputer control program even when an external nonvolatile memory is employed in a redundant system in which one load is controlled by a plurality of control circuits having a redundant configuration, the redundant system being low in cost and excellent in responsiveness. In the redundant system that controls one load by a plurality of control systems having a redundant configuration, when an update program signal for the plurality of control systems is received, update of a control program for each of the plurality of control systems in a predetermined order is individually executed, and when a start request of the load is received during the execution of the update of a control program of one predetermined system, the load is controlled by a system other than the one predetermined system, and during the control, the update of the control program of the one predetermined system is continued.

Abstract: An illumination lamp in which a lamp fitting is attached to a support is installed outdoors. Light-emitting portions of the lamp fitting are easily attached, with a small number of components, to such a position as to illuminate a wide area. In order to prevent the attached components from being damaged, the lamp fitting (1) includes the light-emitting portions (2), a casing (10) to which the light-emitting portions are attached and a protective cover (3) which is arranged on the front side of the light-emitting portions and which protects the light-emitting portions. The casing (10) is shaped to have a plurality of attachment surfaces (11A) and (11B) to which the light-emitting portions can be attached to face in a plurality of predetermined directions. In the illumination lamp (ST), the light-emitting portions are easily attached to a predetermined position with a small number of components.

Abstract: An outdoor-installed illuminating lamp provided with a power generation member and a storage battery. The storage battery and electric components, etc. are made to be easy to mount to the inside of a pole, thereby improving workability of an assembling work and wiring work. The illuminating lamp (1) comprises the pole (2) which is provided with the power generation member for generating power using natural energy, the storage battery for storing the power obtained by the power generation member, and an illuminating section (3) lighted using the accumulated power. The pole (2) has a hollow inside, wherein provided, in an insertable and removable manner, is a shelf assembling member (10) comprising a plurality of placing shelves (12) to place the storage battery and the electric components. An aperture section allowing replacement of the storage battery and the electric components is provided in the lateral surface of the pole (2) and is provided with an openable and closable cover member (5).

Abstract: An illumination lamp in which a lamp fitting is attached to a support is installed outdoors. Light-emitting portions of the lamp fitting are easily attached, with a small number of components, to such a position as to illuminate a wide area. In order to prevent the attached components from being damaged, the lamp fitting (1) includes the light-emitting portions (2), a casing (10) to which the light-emitting portions are attached and a protective cover (3) which is arranged on the front side of the light-emitting portions and which protects the light-emitting portions. The casing (10) is shaped to have a plurality of attachment surfaces (11A) and (11B) to which the light-emitting portions can be attached to face in a plurality of predetermined directions. In the illumination lamp (ST), the light-emitting portions are easily attached to a predetermined position with a small number of components.

Abstract: An outdoor-installed illuminating lamp provided with a power generation member and a storage battery. The storage battery and electric components, etc. are made to be easy to mount to the inside of a pole, thereby improving workability of an assembling work and wiring work. The illuminating lamp (1) comprises the pole (2) which is provided with the power generation member for generating power using natural energy, the storage battery for storing the power obtained by the power generation member, and an illuminating section (3) lighted using the accumulated power. The pole (2) has a hollow inside, wherein provided, in an insertable and removable manner, is a shelf assembling member (10) comprising a plurality of placing shelves (12) to place the storage battery and the electric components. An aperture section allowing replacement of the storage battery and the electric components is provided in the lateral surface of the pole (2) and is provided with an openable and closable cover member (5).

Abstract: In a regenerator to be formed by winding a resin film into a cylindrical shape, a projection is formed on a surface of the resin film by subjecting the resin film in itself to plastic deformation, either by stamping or by laser beam irradiation. Thereafter, the resin film is stacked. The projection provides a gap between layers of the stacked resin film to be a flow passage for a working gas. Thus, a regenerator of high heat exchange efficiency is provided with ease and at low cost.

Abstract: A heat exchanger element for a Stirling cycle refrigerator is produced by integrally forming an annular corrugate fin that is produced by forming a sheet material, corrugated so as to have a large number of grooves, into a cylindrical shape with the grooves parallel to an axis of the cylindrical shape and an inner ring-shaped member that is placed in contact with the inner periphery of the annular corrugate fin. A heat rejector or heat absorber for a Stirling cycle refrigerator is produced by inserting this heat exchanger element into the hollow portion of a tubular body.

Abstract: In a regenerator to be formed by winding a resin film into a cylindrical shape, a projection is formed on a surface of the resin film by subjecting the resin film in itself to plastic deformation, either by stamping or by laser beam irradiation. Thereafter, the resin film is stacked. The projection provides a gap between layers of the stacked resin film to be a flow passage for a working gas. Thus, a regenerator of high heat exchange efficiency is provided with ease and at low cost.

Abstract: A Stirling refrigerator has an outer yoke assembly (11) provided as an outer yoke constituting a linear motor (16) and has a piston-support-spring support member (14A) and a displacer-support-spring support member (14B) that are supported by the outer yoke assembly (11) for fixing a piston support spring (5) and a displacer support spring (6) respectively. By the above-described structure, it is achieved to facilitate handling, in assembly of mass production, of a bobbin/coil and an outer yoke of an outer yoke body constituting the linear motor and reduce the size of the outer shape of a casing.

Abstract: A free-piston type Stirling engine used for producing cold heat with the vibration center position of a piston accurately kept. A first space is formed on one side of a piston, and a second space is formed on the opposite side to spread up to a portion adjacent to a cylinder's side wall. A piston is provided with a vibration-direction first groove extending up to the first space and a circumferential-direction second groove, and a cylinder is provided with a hole penetrating the side wall thereof. The second groove of the piston, when coupled with the cylinder's hole during a piston vibration process, allows the first space to communicate with the second space. Accordingly, a short-time communication between the first and second spaces will balance pressures in the two spaces against each other to keep the vibration center position of the piston accurately.

Abstract: A Stirling refrigerator has an outer yoke assembly (11) provided as an outer yoke constituting a linear motor (16) and has a piston-support-spring support member (14A) and a displacer-support-spring support member (14B) that are supported by the outer yoke assembly (11) for fixing a piston support spring (5) and a displacer support spring (6) respectively. By the above-described structure, it is achieved to facilitate handling, in assembly of mass production, of a bobbin/coil and an outer yoke of an outer yoke body constituting the linear motor and reduce the size of the outer shape of a casing.

Abstract: A free-piston type Stirling engine used for producing cold heat with the vibration center position of a piston accurately kept. A first space is formed on one side of a piston, and a second space is formed on the opposite side to spread up to a portion adjacent to a cylinder's side wall. A piston is provided with a vibration-direction first groove extending up to the first space and a circumferential-direction second groove, and a cylinder is provided with a hole penetrating the side wall thereof The second groove of the piston, when coupled with the cylinder's hole during a piston vibration process, allows the first space to communicate with the second space. Accordingly, a short-time communication between the first and second spaces will balance pressures in the two spaces against each other to keep the vibration center position of the piston accurately.

Abstract: A cooler box includes a box member that has a hermetically closable cooling chamber formed inside it and that insulates heat and a cooling device that cools the interior of the cooling chamber. The cooling device is a Stirling-cycle refrigerator. Here, using a Stirling-cycle refrigerator as the cooling device helps realize a cooler box that can be operated from an easily available low-capacity, inexpensive power supply and that can cool a to-be-cooled article to a low temperature comparable with that produced by a freezer.

Abstract: A heat exchanger element for a Stirling cycle refrigerator is produced by integrally forming an annular corrugate fin that is produced by forming a sheet material, corrugated so as to have a large number of grooves, into a cylindrical shape with the grooves parallel to an axis of the cylindrical shape and an inner ring-shaped member that is placed in contact with the inner periphery of the annular corrugate fin. A heat rejector or heat absorber for a Stirling cycle refrigerator is produced by inserting this heat exchanger element into the hollow portion of a tubular body.

Abstract: A cooler box includes a box member that has a hermetically closable cooling chamber formed inside it and that insulates heat and a cooling device that cools the interior of the cooling chamber. The cooling device is a Stirling-cycle refrigerator. Here, using a Stirling-cycle refrigerator as the cooling device helps realize a cooler box that can be operated from an easily available low-capacity, inexpensive power supply and that can cool a to-be-cooled article to a low temperature comparable with that produced by a freezer.