摘要:
A key mechanism that makes it possible to fix the key inside the cylinder bolt lock outphased from the original combination, thereby preventing the cylinder of the bolt lock from turning. The security of the key mechanism is also enhanced as a cylinder tumbler engages within a slot of the key blade and the key cannot then be expelled from the cylinder bolt lock. Therefore, it is impossible to insert another key or picklock from the other side of the cylinder bolt lock.
摘要:
A locking mechanism wherein it is possible to fix the key inside the lock outphased from the original combination, thereby preventing the cylinder of the lock from turning. The security of the locking mechanism is also enhanced as the key cannot be expelled from the lock. Therefore it is impossible to insert any other key or picklock.
摘要:
The individual keys in a set of keys are configured to fit together in a compact arrangement, with the heads of the keys being in alignment with one another in one direction and stacked against one another in another direction, and with the shanks extending essentially in alignment with one another but spaced apart along the heads. A set of keys may be formed using two outer key configurations or by using the two outer key configurations, together with a central key configuration. One or more of such sets of keys may be stored in a holder including pockets for their storage.
摘要:
The invention provides a theft surveillance case having a stationary member (100) and hook-shaped locking portions (203, 204). Two projecting portion groups (121, 122; 123, 124) are formed in the stationary member (100) with a predetermined distance between them, so that they can lock a CD accommodating case (500) either at a fixing position where the CD accommodating case is clamped by pawl portions (105, 205) or at a position where the CD accommodating case can be disconnected. The distal end portions of the hook-shaped locking portions (203, 204), which are positioned and locked at either a position where they have ridden over the outer one of the two projecting portions of the projecting portion group (121, 122; 123, 124) or a position where they have ridden over the projecting portion at the deeper side, have substantially L-shaped sections and flat portions at their top portions. The distal end portions of the hook-shaped locking portions (203, 204) have a predetermined flexibility, so that they can ride over the projecting portions.
摘要:
A recording medium security container and associated release key which disengages a lock mechanism of the security container enabling the security container to be moved to an open position for removing the contents thereof. The security container has a base, a lid pivotally mounted on the base, and a lock mechanism for securing the lid in a locked position on the base. The key has a grasp base and a plurality of tabs extending outwardly from the base for disengaging the lock mechanism of the security container. Also provided on the key is a pivotally mounted lever which has a pair of tangs which releasably engage and grip the base of the security container so that the key may be grasped to pull the base away from the lid to an open position, while the tabs extending from the key disengage the lock mechanism of the security container.
摘要:
Each key in a set of keys has a headless shank. A slotted opening through the shank is slightly larger than the shank so that any key can be installed over the shank of the active key to act as a wrench to turn the active key. In addition, any shank can carry two blades thereon, one on each end of the shank.
摘要:
The invention comprises a two part key which replaces a conventional key in a conventional lock cylinder for purpose of temporary use wherein one of the parts is a plastic or similar material insert which replaces a portion of the conventional key and a short conplementary key which permits operation of the lock in conjunction with the insert. The insert being secured in the cylinder by means of the cylinder locking pins and being removable only by means of a special installation and extraction tool.
摘要:
For increased security the key (2; 40; 44) has one or more blade portions (43; 45; 46; 5, 6). The longitudinal central plane (A, B) of the or each blade portion is offset from the guide region (42; 7) running along the back edge of the key shaft (3). Furthermore, the or each blade portion is connected to the guide region by means of a bridging portion (14, 14') which forms an obtuse angle (alpha) with the guide region, as well as forming an obtuse angle with the blade portion. In one preferred embodiment two blade portions (45, 46; 5, 6) are provided; they may be of the same cross-sectional shape (FIG. 2) or symmetrical (FIG. 11). The blade portions and guide region may be divided into two portions to provide partner keys (FIG. 12).
摘要:
A cylinder lock assembly which includes a hollow lock body and a barrel rotatably mounted in the lock body having a keyway extending longitudinally from one end thereof.There is also provided a plurality of tumbler pin bores located in the barrel arranged in one or more rows. Each tumbler pin bore communicates with the keyway.There is also provided a plurality of tumbler pins provided in one or more rows wherein each tumbler pin is located in an associated tumbler pin bore.There is also provided a multiplicity of individual or separate locking pins arranged in one or more rows which engage with an adjacent row of tumbler pins transverse to the longitudinal axis of the tumbler pins to retain the barrel in a locked position preventing rotational movement of the barrel relative to the lock body.There is also provided retraction means on each tumbler pin on which allows retraction or inward movement of the locking pins from the locked position whereby the barrel may attain an unlocked position permitting rotation relative to the lock body.The construction and arrangement of the cylinder lock assembly is such that when a key is inserted in the keyway the retraction means of each tumbler pin may be axially aligned to initiate the retraction or inward movement of the locking pins.