Abstract: The hydraulic damper 1 includes: a cylinder 11 storing oil; a piston unit connected to a rod moving in an axial direction and configured to move within the cylinder 11; an outer cylinder body 12 outside of the cylinder 11 and forming a communication path L through which oil flows along with movement of the piston unit; a damper case 13 outside of the cylinder 11 and forming a reservoir chamber R to retain oil; a damping force changer 52 external to the cylinder 11 and configured to generate a damping force by throttling flow of oil along with movement of the piston unit and configured to change magnitude of the damping force; and a joint piece 61 forming a channel 61R of oil from the communication path L to the damping force changer 52 and including an external valve to control flow of oil flowing through the channel 61R.

Abstract: A hydraulic buffer device includes a first cylinder that stores oil, a rod member capable of being moved with respect to the first cylinder as being inserted into the first cylinder toward a first side of the first cylinder and being protruded outward from the first cylinder on a second side of the first cylinder, a rod guide that covers the second side of the first cylinder as having a through-hole, an oil seal arranged at the outer side of the rod member in the radial direction on the second side of the first cylinder, a groove portion that forms a flow path for oil flowing from the inside of the first cylinder toward the oil seal, and a small-diameter portion that restricts flow of oil flowing through the groove portion. An appropriate amount of fluid is supplied to a seal member in a pressure buffer device.

Abstract: A hydraulic buffer device includes a first cylinder that stores oil, a rod member capable of being moved with respect to the first cylinder as being inserted into the first cylinder toward a first side of the first cylinder and being protruded outward from the first cylinder on a second side of the first cylinder, a rod guide that covers the second side of the first cylinder as having a through-hole, an oil seal arranged at the outer side of the rod member in the radial direction on the second side of the first cylinder, a groove portion that forms a flow path for oil flowing from the inside of the first cylinder toward the oil seal, and a small-diameter portion that restricts flow of oil flowing through the groove portion. An appropriate amount of fluid is supplied to a seal member in a pressure buffer device.

Abstract: An elastic sheet includes: a seating portion by which the coil spring is supported and which has a circular arc shape in a view from the axial direction, one circumferential side of the seating portion being a side of entry of the coil spring; and a pair of sidewall portions extending from respective width-wise opposite ends of the seating portion toward the coil spring side, at least one of the sidewall portions has a wire contact surface that contacts a wire forming the coil spring and an inclined surface inclined so as to approach the spring bearing as the inclined surface extends widthwise outward from the wire contact surface, and a radius of curvature of the wire contact surface at least at a side closest to the inclined surface is smaller than a radius of the wire.

Abstract: A hydraulic shock absorbing apparatus includes: an inner tube; and an outer tube that is placed outside the inner tube, in which a space is defined between an outer circumferential surface of the inner tube and an inner circumferential surface of the outer tube, and a protruding portion protruding from the outer circumferential surface of the inner tube toward the outer tube or a protruding portion protruding from the inner circumferential surface of the outer tube toward the inner tube is provided in the space, and the protruding portion is formed over an entire circumference of the outer circumferential surface of the inner tube or the inner circumferential surface of the outer tube, and has a waveform when viewed from a direction crossing the outer circumferential surface or the inner circumferential surface.

Abstract: A pressure shock absorbing apparatus includes: a first cylinder; a second cylinder that is placed outside the first cylinder to form a liquid storage unit; a partitioning member that is disposed in such a manner as to be movable in an axial direction inside the first cylinder to partition a space inside the first cylinder; a throttle mechanism that is disposed in a side portion of the second cylinder, and includes a throttle unit that throttles a flow path cross section of a liquid to discharge the liquid taken in from the first cylinder toward the liquid storage unit while passing the liquid through the throttle unit; and a suppression unit that is held by the throttle mechanism at a liquid discharge point between the throttle mechanism and the liquid storage unit to suppress air bubbles in the liquid in the liquid storage unit.

Abstract: A hydraulic shock absorbing apparatus includes: an inner tube; and an outer tube that is placed outside the inner tube, in which a space is defined between an outer circumferential surface of the inner tube and an inner circumferential surface of the outer tube, and a protruding portion protruding from the outer circumferential surface of the inner tube toward the outer tube or a protruding portion protruding from the inner circumferential surface of the outer tube toward the inner tube is provided in the space, and the protruding portion is formed over an entire circumference of the outer circumferential surface of the inner tube or the inner circumferential surface of the outer tube, and has a waveform when viewed from a direction crossing the outer circumferential surface or the inner circumferential surface.

Abstract: A pressure shock absorbing apparatus includes: a first cylinder; a second cylinder that is placed outside the first cylinder to form a liquid storage unit; a partitioning member that is disposed in such a manner as to be movable in an axial direction inside the first cylinder to partition a space inside the first cylinder; a throttle mechanism that is disposed in a side portion of the second cylinder, and includes a throttle unit that throttles a flow path cross section of a liquid to discharge the liquid taken in from the first cylinder toward the liquid storage unit while passing the liquid through the throttle unit; and a suppression unit that is held by the throttle mechanism at a liquid discharge point between the throttle mechanism and the liquid storage unit to suppress air bubbles in the liquid in the liquid storage unit.

Abstract: An elastic sheet includes: a seating portion by which the coil spring is supported and which has a circular arc shape in a view from the axial direction, one circumferential side of the seating portion being a side of entry of the coil spring; and a pair of sidewall portions extending from respective width-wise opposite ends of the seating portion toward the coil spring side, at least one of the sidewall portions has a wire contact surface that contacts a wire forming the coil spring and an inclined surface inclined so as to approach the spring bearing as the inclined surface extends widthwise outward from the wire contact surface, and a radius of curvature of the wire contact surface at least at a side closest to the inclined surface is smaller than a radius of the wire.

Abstract: A fryer for business use is provided which can prevent degradation of cooking oil, secure a good cooking environment and improve a work efficiency. To this end, the fryer of this invention comprises: a water tank 32, 82 to store water; an oil tank 9, 51 arranged above the water tank to store the cooking oil in contact with the stored water in the water tank; a heater 13, 52 arranged in an oil layer in the oil tank; and an oil delivery pipe 10, 61 through which to draw the cooking oil in the oil layer by a pump 29, 64 and release it onto a bottom of the water tank 32, 82; wherein the released cooking oil rises through the water layer and flows into a lower part of the oil layer.

Abstract: A fryer for business use is provided which can prevent degradation of cooking oil, secure a good cooking environment and improve a work efficiency. To this end, the fryer of this invention comprises: a water tank 32, 82 to store water; an oil tank 9, 51 arranged above the water tank to store the cooking oil in contact with the stored water in the water tank; a heater 13, 52 arranged in an oil layer in the oil tank; and an oil delivery pipe 10, 61 through which to draw the cooking oil in the oil layer by a pump 29, 64 and release it onto a bottom of the water tank 32, 82; wherein the released cooking oil rises through the water layer and flows into a lower part of the oil layer.

Abstract: A fryer for business use is provided which can prevent degradation of cooking oil, secure a good cooking environment and improve a work efficiency. To this end, the fryer of this invention comprises: a water tank 32, 82 to store water; an oil tank 9, 51 arranged above the water tank to store the cooking oil in contact with the stored water in the water tank; a heater 13, 52 arranged in an oil layer in the oil tank; and an oil delivery pipe 10, 61 through which to draw the cooking oil in the oil layer by a pump 29, 64 and release it onto a bottom of the water tank 32, 82; wherein the released cooking oil rises through the water layer and flows into a lower part of the oil layer.