Oy Wartsila Ab

Abloy Security Ltd Oy

Kyosti Nevalainen

Kaarlo Martikainen

Seija Ramo

Reijo Hakkarainen

Keijo Lehikoinen

Pekka Vehvilainen

A disc cylinder lock mechanism comprises a cylinder housing, an inner cylinder turnable inside the cylinder housing, and a stack of discs inside the inner cylinder. The discs define respective key openings which form a key channel for receiving a key. The stack of discs includes several locking discs, and the lock mechanism is in a releasing condition when each locking disc is in a predetermined releasing angular position. Each locking disc has a protrusion that extends toward the central part of the key opening and has first and second adjacent and substantially perpendicular edges. A guiding element extends longitudinally over the stack of discs in the key channel. The key has a combination surface for each locking disc and is formed to engage the guiding element when the key is inserted in the key channel for turning the guiding element continuously with the key when the key is turned in the lock. When the key is inserted in the key channel and is turned in one direction, the combination surfaces engage the first edges of the respective locking discs to bring each locking disc to its respective predetermined angular releasing position, and when the key is turned in the opposite direction the guiding element engages the second edges of the respective locking discs to bring each locking disc to a key removal position.

Cylinder lock--key--combination

A cylinder lock comprising a lock body (1) and inside it a rotatable lock cylinder (2) enclosing a number of locking discs (4;6) turnable by the key (3) of the lock and provided with a peripheral notch (8) determining the combination of the lock, and a locking bar (7), which in the locking position prevents turning of the lock cylinder (2) with regard to the lock body (1). The locking discs (4) are also provided with a set of second peripheral notches (10) arranged in cooperation with an auxiliary bar (11) so as to prevent turning of the locking discs (4;6) relatively to each other at the end phase of the turning movement for opening the lock before the locking bar (7) moves into its position for releasing the lock. The second peripheral notches (10) are located outside of the cutting range for said combination peripheral notches (8) and are arranged side by side on the peripheral edge of each of the locking discs (4). Their number corresponds to the number of the possible cuts for the combination peripheral notch (8), and the pitch between them corresponds to the mutual pitch between the combination peripheral notches (8). The auxiliary bar (11) is continuously located partly inside the lock cylinder (2) and limits the turning range of the locking discs (4;6). The lock includes further at least one member continuously turning with the key (3) for guiding the radial movement of the auxiliary bar (11).

Cylinder lock

The invention relates to disc cylinder lock-key-combination, including a cylinder housing (1), and inside thereof, a turnable inner cylinder (2), which encloses a set of discs comprising a number of locking discs (3,4) provided with peripheral notches (8) and separated from one another by means of intermediate discs (5), and a locking bar (10), which in the locked position of the lock is located partly in a groove in the cylinder housing and partly in a slot (9) in the inner cylinder thereby preventing the inner cylinder to be turned with regard to the cylinder housing. The locking discs (3,4) are turnable by means of the key (12) of the lock into a position, in which the peripheral notches (8) form a uniform channel at the position of said slot (9) of the inner cylinder, into which channel the locking bar (10) can enter from the groove of the cylinder housing thereby releasing the inner cylinder to turn with regard to the cylinder housing. In accordance with the invention a guiding element (18), cooperating with the key (12) and extending at least substantially across the axial length of the set of discs, is arranged in the keyway formed jointly by the key openings (6,7) of the discs (3,4,5) in the set of discs. The lock includes further at least one member (3,23) turning continuously with the key when the key is turned in the lock, to which member the guiding element (18) is supported and from which the guiding element (18) is arranged to receive its guidance.

Cylinderlock-key-combination

The invention relates to a cylinder lock including a number of locking discs (4) turnable by means of the key (8) of the lock and separated from each other by intermediate discs (5) and provided with a key opening (6) and with a peripheral notch (7), and a locking bar (3) which, when the lock is in the locking position, prevents turning of the set of discs and force transmission from the key (8). According to the invention the peripheral notches (7) of the locking discs are located so that the locking discs (4) are placeable in the set of discs in either way with regard to their plane, and at least some of the locking discs (4) are formed so that a surface (6a) of the key opening (6) of the locking disc co-operating with the corresponding combination surface of the key (8) is in the axial direction of the set of discs substantially shorter than the length of the part (A) of the key way of the lock corresponding to said locking disc (4) and located asymmetrically with regard to the locking disc (4) in the axial direction in such a way that turning of said locking disc (4) in the set of discs around an axis in the plane of said disc causes the location of the corresponding combination surface (14) of the key (8) on the key blade to be changed.

The invention relates to an arrangement for obtaining an uninterrupted connection of an electric cable or the like between two elements pivotally hinged to each other, in particular, between a door frame element and a door connected thereto. The arrangement comprises, at the position of the connection, a member arranged around the cable in the form of a separate, turnable and longitudinally flexible protecting element. This element is arranged basically in the longitudinal direction of the door frame element and one end of the element is connected to the door frame element and the other end to an adjacent edge part of the door. There is, for said protecting element, in the door frame and/or in said door edge part, at least one recess. This recess is so arranged that, when the door is closed, the protecting element and said cable are received in this recess.

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Joensuu, Finland

Kyosti Nevalainen