Abstract: A haptic feedback device includes a dielectric elastomer actuator (DEA) and a driving unit. The DEA includes at least one dielectric layer, electrode layers sandwiching the dielectric layer, and a transmitting layer that forms an outermost layer. The at least one dielectric layer includes an expansion-contraction portion, which expands and contracts when applied with a voltage, and a heat generating portion, which generates heat when applied with a voltage. The haptic feedback device is configured to transmit vibration to a user via the transmitting layer by applying an expansion-contraction voltage between the electrode layers sandwiching the expansion-contraction portion through the driving unit, and transmit heat sensation to the user via the transmitting layer by applying a heat generating voltage between the electrode layers sandwiching the heat generating portion through the driving unit.

Abstract: A haptic feedback device includes a dielectric elastomer actuator (DEA) and a driving unit. The DEA includes at least one dielectric layer, electrode layers sandwiching the dielectric layer, and a transmitting layer that forms an outermost layer. The at least one dielectric layer includes an expansion-contraction portion, which expands and contracts when applied with a voltage, and a heat generating portion, which generates heat when applied with a voltage. The haptic feedback device is configured to transmit vibration to a user via the transmitting layer by applying an expansion-contraction voltage between the electrode layers sandwiching the expansion-contraction portion through the driving unit, and transmit heat sensation to the user via the transmitting layer by applying a heat generating voltage between the electrode layers sandwiching the heat generating portion through the driving unit.

Abstract: A tactile presentation device is provided with: a glove worn on the hand of a user; polymer actuators attached to a base fabric of the glove; a control device which controls the polymer actuators; and an array of haptic stimulators driven by the polymer actuators. The tactile presentation device drives the haptic stimulators using the polymer actuators through the application of a voltage to the polymer actuators by means of the control device, and performs tactile presentation to the skin of the hand of the user by driving the haptic stimulators. The polymer actuators are capable of causing the haptic stimulators to be displaced by at least 100 ?m when the frequency of the applied voltage is 1 to 30 Hz and more preferably 1 to 100 Hz.

Abstract: A tactile presentation device is provided with: a glove worn on the hand of a user; polymer actuators attached to a base fabric of the glove; a control device which controls the polymer actuators; and an array of haptic stimulators driven by the polymer actuators. The tactile presentation device drives the haptic stimulators using the polymer actuators through the application of a voltage to the polymer actuators by means of the control device, and performs tactile presentation to the skin of the hand of the user by driving the haptic stimulators. The polymer actuators are capable of causing the haptic stimulators to be displaced by at least 100 ?m when the frequency of the applied voltage is 1 to 30 Hz and more preferably 1 to 100 Hz.

Abstract: A haptic device includes a flexible covering, an actuator provided in the covering and configured to generate vibration, and transmission particles filling the covering.

Abstract: An optical device includes: an optical element; a housing unit configured to accommodate the optical element; a support part configured to pivotally support the optical element to be tiltable with respect to the housing unit; a piezoelectric element configured to connect the optical element and the housing unit to each other; and an electrode arranged at the piezoelectric element.

Abstract: An optical device includes: an optical element; a housing unit configured to accommodate the optical element; a support part configured to pivotally support the optical element to be tiltable with respect to the housing unit; a piezoelectric element configured to connect the optical element and the housing unit to each other; and an electrode arranged at the piezoelectric element.

Abstract: The invention has an object to provide a cold storage capable of simplifying a construction for pushing up a cooling unit and easily positioning a mounting position of the cooling unit. The cold storage includes a cooling unit integrated with a cooling box accommodating a cooler and a blower, and a compressor, a condenser and the like provided on a mounting base; a cold air discharge and a suction port formed in the bottom wall of a thermal insulating housing; fixing members having a stopper for positioning the cooling unit in a machine room such that a cold air discharge and a suction port correspond to lower sides of the first mentioned discharge and suction ports, respectively; and pushing-up members and operating arms for them, the pushing-up members causing the cooling unit to be pushed up toward the bottom wall of the thermal insulating housing by abutting against the lower surface of the mounting base on front and rear sides with respect to inserting direction of the cooling unit into the machine room.

Abstract: An object is to provide a cold storage in which a cooling box is attached to a bottom wall of a thermal insulation box member without any trouble, cold air circulation is constituted in such a manner that cold air which has exchanged heat with a cooler is discharged into a storage chamber by an air blower via a cold air discharge port, and sucked into a cooling chamber via a cold air suction port, and the inside of the storage chamber can be cooled.

Abstract: The present invention intends to provide a cold storage in which a cooling unit constituted by integrating a compressor, an evaporator and the like is mounted on a bottom part of an insulating box, whereby processing of the cooling unit on its insulating box side is made unnecessary or minimum, and a space can also be saved.

Abstract: The invention has an object to provide a cold storage capable of simplifying a construction for pushing up a cooling unit and easily positioning a mounting position of the cooling unit. The cold storage includes a cooling unit integrated with a cooling box accommodating a cooler and a blower, and a compressor, a condenser and the like provided on a mounting base; a cold air discharge and a suction port formed in the bottom wall of a thermal insulating housing; fixing members having a stopper for positioning the cooling unit in a machine room such that a cold air discharge and a suction port correspond to lower sides of the first mentioned discharge and suction ports, respectively; and pushing-up members and operating arms for them, the pushing-up members causing the cooling unit to be pushed up toward the bottom wall of the thermal insulating housing by abutting against the lower surface of the mounting base on front and rear sides with respect to inserting direction of the cooling unit into the machine room.

Abstract: The present invention intends to provide a cold storage in which a cooling unit constituted by integrating a compressor, an evaporator and the like is mounted on a bottom part of an insulating box, whereby processing of the cooling unit on its insulating box side is made unnecessary or minimum, and a space can also be saved.

Abstract: An object is to provide a cold storage in which a cooling box is attached to a bottom wall of a thermal insulation box member without any trouble, cold air circulation is constituted in such a manner that cold air which has exchanged heat with a cooler is discharged into a storage chamber by an air blower via a cold air discharge port, and sucked into a cooling chamber via a cold air suction port, and the inside of the storage chamber can be cooled.