Safety head protector for vehicle cabs

In a vehicle having an occupant seat and a closely adjacent rear window glass, the combination, comprising:

• a. a safety pack member comprising a foam material interior for installation directly onto said rear window glass and in longitudinal alignment with the occupant relative to the normal direction of travel of said vehicle, and wherein said member is retained and totally supported by and from said glass,
• b. a sturdy protective support member of a size comparable to that of the occupant's head, installed adjacent the back side of said safety pack member,
• c. a cushion member of foam material of a size comparable to the size of said support member, engaging the front side of said support member and the occupant's head,
• d. an outer cover member of durable non-foam flexible material surrounding said cushion of foam material, and attached to said support member,
• e. at least one fastener member half attached in matching relationship to aligned locations on both the back side of said safety pack member and the inside surface of said rear window glass,
• f. means on the back side of one said fastener member half, and on the forward facing side of said other fastener member half to permit adjustable location of, and total support for said pack member on said vehicle rear window glass,
• g. means in said cushion member for acting as a barrier to restrain rearward motion of the occupant's head during a collision of moderate intensity, and
• h. means in said support member for acting as an additional barrier to restrain further rearward moement of the occupant's head during a collision of increased intensity, wherein the occupant's head could break the rear window glass were it not for said support member being interposed between the occupant and the rear window glass.