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A hydraulic actuating unit for integration into a preassembled folding roof unit of a motor vehicle is adapted for mounting as a single unit in a motor vehicle with the hydraulic actuating unit integrated therein. The preassembled folding roof unit has a folding roof with a foldable cover and a fram

A hydraulic actuating unit for integration into a preassembled folding roof unit of a motor vehicle is adapted for mounting as a single unit in a motor vehicle with the hydraulic actuating unit integrated therein. The preassembled folding roof unit has a folding roof with a foldable cover and a framework for the cover. A main bow is pivoted by a hydraulic main bow actuator and a rear bow is pivoted by a hydraulic rear bow actuator, each actuator being of the double-acting type. The hydraulic actuating unit also has an actuable two-position control valve, which control valve has an outlet port, an inlet port and a reservoir port, the outlet port being connected to a working chamber of the main bow actuator and/or a working chamber of the rear bow actuator. The control valve, in a first position, connects the associated outlet port to the reservoir port and, in a second position, connects the associated outlet port to the inlet port of the control valve. The hydraulic actuating unit also has two hydraulic connection ports to connect the actuating unit, which is integrated in the pre-assembled folding roof unit, to a hydraulic pump/reservoir unit, which is mounted away from the actuating unit. A valve element with a non-return valve action opening towards the relevant connection port is provided in the connection between the reservoir ports and the connection ports.

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A hydraulic actuating unit for integration into a preassembled folding roof unit of a motor vehicle is adapted for mounting as a single unit in a motor vehicle with the hydraulic actuating unit integrated therein. The preassembled folding roof unit has a folding roof with a foldable cover and a fram

A hydraulic actuating unit for integration into a preassembled folding roof unit of a motor vehicle is adapted for mounting as a single unit in a motor vehicle with the hydraulic actuating unit integrated therein. The preassembled folding roof unit has a folding roof with a foldable cover and a framework for the cover. A main bow is pivoted by a hydraulic main bow actuator and a rear bow is pivoted by a hydraulic rear bow actuator, each actuator being of the double-acting type. The hydraulic actuating unit also has an actuable two-position control valve, which control valve has an outlet port, an inlet port and a reservoir port, the outlet port being connected to a working chamber of the main bow actuator and/or a working chamber of the rear bow actuator. The control valve, in a first position, connects the associated outlet port to the reservoir port and, in a second position, connects the associated outlet port to the inlet port of the control valve. The hydraulic actuating unit also has two hydraulic connection ports to connect the actuating unit, which is integrated in the pre-assembled folding roof unit, to a hydraulic pump/reservoir unit, which is mounted away from the actuating unit. A valve element with a non-return valve action opening towards the relevant connection port is provided in the connection between the reservoir ports and the connection ports. irection. The blocking mechanism (70) is actuated upon the occurrence of a vehicle collision. A portion of the length of seat belt webbing (18) restrains movement of the seat back portion (24) relative to the vehicle during a vehicle collision. 苧 930900, Ishida; US-5316321, 19940500, Ishida et al., 277/235.A; US-5582414, 19961200, Miyazaki et al.; US-5605741, 19970200, Hite et al.; US-5655955, 19970800, Nagel et al.; US-5960762, 19991000, Imai, 123/193.4; US-6209881, 20010400, Michel et al.; US-6279913, 20010800, Iwashita et al.; US-6325385, 20011200, Iwashita et al.