Abstract: In a vehicle seat having sound generation source disposed between a seat frame and a cover member covering part of the seat frame from a side, a plate-shaped interposing part disposed between the seat frame and the sound generation source while opposing the seat frame is housed within the cover member, and a plurality of through holes are bored in the plate-shaped interposing part. Accordingly, a resonance space that is efficient and has a small size can be obtained within the cover member.

Abstract: Provided is a conveyance seat having a seat frame that suppresses a resonance by a simple means in a seat frame with an actuator. A conveyance seat is a conveyance seat having a seat frame with an actuator and includes a resonance suppressing portion which is formed in at least a part of the seat frame by a first uneven region formed by continuously forming a plurality of non-penetrating recesses and/or protrusions. Since the natural frequency of the seat frame changes, the resonance of the seat frame due to the operational vibration of the actuator can be suppressed.

Abstract: A vehicle seat (11) includes a seat frame (22a) having an opening (46) in a plate-shaped part (43), and an actuator (31) mounted on the plate-shaped part (43). Accordingly, it is possible to provide a vehicle seat that further contributes to quietness in the interior of a vehicle.

Abstract: In a vehicle seat having sound generation source disposed between a seat frame and a cover member covering part of the seat frame from a side, a plate-shaped interposing part disposed between the seat frame and the sound generation source while opposing the seat frame is housed within the cover member, and a plurality of through holes are bored in the plate-shaped interposing part. Accordingly, a resonance space that is efficient and has a small size can be obtained within the cover member.

Abstract: In a vehicle seat having sound generation source disposed between a seat frame and a cover member covering part of the seat frame from a side, a plate-shaped interposing part disposed between the seat frame and the sound generation source while opposing the seat frame is housed within the cover member, and a plurality of through holes are bored in the plate-shaped interposing part. Accordingly, a resonance space that is efficient and has a small size can be obtained within the cover member.

Abstract: Provided is a headrest in which devices can be placed and which is easy to manufacture. A headrest comprises a pillar supported by a seat back on which the headrest is provided; a core supported by the pillar and having one or more receiving recesses recessed inward from an outer surface of the core; one or more devices, each device received in a corresponding receiving recess; and a skin material covering the core and the devices.

Abstract: A vehicle seat (11) includes a seat frame (22a) having an opening (46) in a plate-shaped part (43), andan actuator (31) mounted on the plate-shaped part (43). Accordingly, it is possible to provide a vehicle seat that further contributes to quietness in the interior of a vehicle.

Abstract: A vehicle seat (11) includes a seat frame (22a) having an opening (46) in a plate-shaped part (43), and an actuator (31) mounted on the plate-shaped part (43). Accordingly, it is possible to provide a vehicle seat that further contributes to quietness in the interior of a vehicle.

Abstract: A vehicle seat (11) includes a seat frame (22a) having an opening (46) in a plate-shaped part (43), and an actuator (31) mounted on the plate-shaped part (43). Accordingly, it is possible to provide a vehicle seat that further contributes to quietness in the interior of a vehicle.

Abstract: A vehicle seat includes a seat frame having an opening in a plate-shaped part, and an actuator mounted on the plate-shaped part. Accordingly, it is possible to provide a vehicle seat that further contributes to quietness in the interior of a vehicle.

Abstract: In a vehicle seat having sound generation source disposed between a seat frame and a cover member covering part of the seat frame from a side, a plate-shaped interposing part disposed between the seat frame and the sound generation source while opposing the seat frame is housed within the cover member, and a plurality of through holes are bored in the plate-shaped interposing part. Accordingly, a resonance space that is efficient and has a small size can be obtained within the cover member.

Abstract: A vehicle seat includes a seat frame having an opening in a plate-shaped part, and an actuator mounted on the plate-shaped part. Accordingly, it is possible to provide a vehicle seat that further contributes to quietness in the interior of a vehicle.

Abstract: There is provided a seal apparatus for sealing against a rod, comprising a double seal including a rod seal and an O-ring which serves as a back-up ring for the rod seal. The double seal is provided in an annular groove formed on an inner circumferential surface of a rod guide which guides a sliding motion of the rod. An annular partition wall extends from the rod guide so that a force applied to the rod seal from the O-ring is shared between the rod seal and the partition wall. An annular protrusion is formed on a front end surface of the partition wall, so that when the rod seal is pressed with a large force toward the low-pressure side, the protrusion bites into a stepped surface of the rod seal and a front end surface of the rod seal is brought into contact with a low-pressure-side seal-bearing surface of the rod guide. The force applied to the rod seal is distributed to two sites.

Abstract: A cylinder apparatus including a piston slidably fitted in a cylinder having a hydraulic fluid sealed therein. A piston rod is connected at one end thereof to the piston. The other end portion of the piston rod extends as far as the outside of the cylinder through a seal block fitted to an open end portion of the cylinder. The seal block retains a double seal including a rod seal that is in sliding contact with the piston rod and an O-ring that resiliently biases the rod seal toward the piston rod. The seal block is provided with a projection extending between the O-ring and the rod seal to bear a part of biasing force applied to the rod seal from the O-ring. The projection is provided at a side of the O-ring and rod seal which is remote from the piston.