Abstract: An adjustable keyboard support mechanism includes a mounting bracket for attachment to a support surface, a platform for supporting a keyboard thereon, a support arm operably connected to the mounting bracket and the platform, and a locking mechanism for restricting height adjustment of the platform with respect to the support surface. The locking mechanism includes a center arm pivotable with respect to the platform and slidable with respect to the mounting bracket, a plurality of frictional members sandwiching and frictionally engaging the center arm, thereby restricting the sliding movement of the center arm with respect to the mounting bracket, and a wedge assembly actuable by pivoting movement of the platform and engageable with the frictional members to both restrict and allow height adjustment of the platform relative to the support surface.

Abstract: An adjustable keyboard support mechanism includes a mounting bracket for attachment to a support surface, a platform for supporting a keyboard thereon, a support arm operably connected to the mounting bracket and the platform, and a locking mechanism for restricting height adjustment of the platform with respect to the support surface. The locking mechanism includes a center arm pivotable with respect to the platform and slidable with respect to the mounting bracket, a plurality of frictional members sandwiching and frictionally engaging the center arm, thereby restricting the sliding movement of the center arm with respect to the mounting bracket, and a wedge assembly actuable by pivoting movement of the platform and engageable with the frictional members to both restrict and allow height adjustment of the platform relative to the support surface.

Abstract: A keyboard support assembly includes first and second arms which interconnect from a desktop mounting plate to a keyboard support platform. The first arm connects directly by pivot connections between the desk mounting plate and the keyboard support platform. The second arm connects from the desk mounting plate to the first arm and acts as a brace for the first arm. A locking wedge mechanism locks the arms together when weight is placed on the support platform due to engagement of an actuating arm which projects from the keyboard support platform and activates the wedge mechanism. Release of the weight or force on the platform releases the wedge locking mechanism and permits pivotal movement of the arms and reorientation of the platform.

Abstract: A keyboard support assembly includes first and second arms which interconnect from a desktop mounting plate to a keyboard support platform. The first arm connects directly by pivot connections between the desk mounting plate and the keyboard support platform. The second arm connects from the desk mounting plate to the first arm and acts as a brace for the first arm. A locking wedge mechanism locks the arms together when weight is placed on the support platform due to engagement of an actuating arm which projects from the keyboard support platform and activates the wedge mechanism. Release of the weight or force on the platform releases the wedge locking mechanism and permits pivotal movement of the arms and reorientation of the platform.

Abstract: A keyboard support assembly includes first and second arms which interconnect from a desktop mounting plate to a keyboard support platform. The first arm connects directly by pivot connections between the desk mounting plate and the keyboard support platform. The second arm connects from the desk mounting plate to the first arm and acts as a brace for the first arm. A locking wedge mechanism locks the arms together when weight is placed on the support platform due to engagement of an actuating arm which projects from the keyboard support platform and activates the wedge mechanism. Release of the weight or force on the platform releases the wedge locking mechanism and permits pivotal movement of the arms and reorientation of the platform.

Abstract: A keyboard support assembly includes first and second arms which interconnect from a desktop mounting plate to a keyboard support platform. The first arm connects directly by pivot connections between the desk mounting plate and the keyboard support platform. The second arm connects from the desk mounting plate to the first arm and acts as a brace for the first arm. A locking wedge mechanism locks the arms together when weight is placed on the support platform due to engagement of an actuating arm which projects from the keyboard support platform and activates the wedge mechanism. Release of the weight or force on the platform releases the wedge locking mechanism and permits pivotal movement of the arms and reorientation of the platform.

Abstract: A keyboard support assembly includes first and second arms which interconnect from a desktop mounting plate to a keyboard support platform. The first arm connects directly by pivot connections between the desk mounting plate and the keyboard support platform. The second arm connects from the desk mounting plate to the first arm and acts as a brace for the first arm. A locking wedge mechanism locks the arms together when weight is placed on the support platform due to engagement of an actuating arm which projects from the keyboard support platform and activates the wedge mechanism. Release of the weight or force on the platform releases the wedge locking mechanism and permits pivotal movement of the arms and reorientation of the platform.