Patent ID: 8056380

Claim:
A cylinder lock unit comprising: a housing ( 1 â€²) having a cylindrical bore ( 3 â€²), a cylindrical key plug ( 5 â€²) being rotatably journalled in said cylindrical bore, said key plug having a longitudinal key slot and a number of locking pins ( 10 â€²) in associated cylindrical chambers in a linear row along a key plug axis for locking the key plug against rotation in the cylindrical bore, each locking pin in said linear row being guided for elevational movement in one of said associated cylindrical chambers in said key plug and having a key sensing part ( 10 a ) for contacting a key ( 7 â€²) inserted into said key slot, said housing also including an elongate housing portion ( 2 â€²) extending outside and along said cylindrical bore and having an uppermost part, said elongate housing portion being dimensioned for being accommodated in a structural part (S) to form a lock device, with a fixed external longitudinal configuration (L) fitting into said structural part, said elongate housing portion having a linear row of cylindrical holes ( 22 â€²), registering with said cylindrical chambers in the key plug, and said cylindrical holes accommodating upper pins ( 28 â€²), corresponding in number to said locking pins and cooperating with the latter so as to provide a locking function enabling or preventing rotation of said key plug in said cylindrical bore, wherein the cylindrical holes are closely packed in said linear row within said fixed external longitudinal configuration (L), said cylindrical holes being closely packed with non-parallel axes such that at least the outermost cylindrical holes ( 22 â€²), located adjacent to respective longitudinal ends of said elongate housing portion ( 2 â€²) lean with their upper parts towards a longitudinal centre portion of said elongate housing portion, at an inclinational angle in the interval 1Â°-10Â° relative to the central axis of the associated cylindrical chamber in the key plug, wherein the cylindrical walls defining each of said outermost cylindrical holes ( 22 â€²) in said elongate housing portion includes one side with an upper portion that is thinner than a lower portion thereof, and an opposite side with a lower portion that is thinner than an upper portion thereof, in a central longitudinal plane through the axes of said cylindrical holes in said elongate housing portion for reducing the overall length of the elongate housing portion; and all pairs of said cylindrical chambers in said key plug and said associated cylindrical holes in said elongate housing portion, even where the central axes in a pair are inclined relative to each other, register mutually so as to permit displacement of the associated locking pin ( 10 â€²) or upper pin ( 28 â€²) into the neighboring hole or chamber in order to provide said locking function, in spite of the inclination of said outermost cylindrical holes .