Abstract: A cable tensioning system including a roller-and-wedge clutch is disclosed. The cable tensioning system can be used in an adjustable headband for a head-mountable display. In an example, a tensioning system includes a cable; a cam wheel including a roller opening, the cam wheel including a ramped surface adjacent the roller opening; a dial housing encircling the cam wheel; and a roller in the roller opening, the roller being configured to roll along the ramped surface, the roller being configured to lock the cam wheel and the dial housing when the cable moves in a first direction, the roller being configured to unlock the cam wheel and the dial housing when the cable moves in a second direction opposite the first direction.

Abstract: A band includes a latch body that is movable by pulling a tab. The latch body extends through an opening of the band and secures with a pin located on a head-mountable device. The band can detach from the head-mountable device by pulling the tab, which actuates the latch body and removes the latch body from the pin. A spring (or springs) can bias the latch body toward the opening, causing the latch body to enter the pin. An applied force to the tab can overcome the biasing force provided by the spring(s), and move the latch body away from, and out of, the pin.

Abstract: A head-mounted device may include a housing structure, a display module mounted in the housing structure, and adjustable support structures coupled to the housing structure. The adjustable support structures may include a first portion that rests against a user's forehead and second and third portions that rest against the user's cheeks or temples. In some arrangements, the adjustable support structures include posts with adjustable lengths, telescoping layers of material, inflatable structures, and/or elastomeric materials that expand and retract to accommodate different face shapes and sizes. In some arrangements, the adjustable support structures include a cable located in a flexible member. When pressure is applied to a forehead portion of the flexible member, the cable pulls the temple portions of the flexible member towards each other. In some arrangements, the adjustable support structures include a movable member that pivots about a pivot axis.

Abstract: A head-mounted device may include a housing structure, a display module mounted in the housing structure, and adjustable support structures coupled to the housing structure. The adjustable support structures may include a first portion that rests against a user's forehead and second and third portions that rest against the user's cheeks or temples. In some arrangements, the adjustable support structures include posts with adjustable lengths, telescoping layers of material, inflatable structures, and/or elastomeric materials that expand and retract to accommodate different face shapes and sizes. In some arrangements, the adjustable support structures include a cable located in a flexible member. When pressure is applied to a forehead portion of the flexible member, the cable pulls the temple portions of the flexible member towards each other. In some arrangements, the adjustable support structures include a movable member that pivots about a pivot axis.