A cylinder lock used for locking compartments, boxes, storages etc. The cylinder lock comprises a cylinder body, an inner cylinder and a rotating part. The front part of the inner cylinder is provided with a rotary knob. The lock cylinder comprises a spring, which is arranged to push the rotary knob
A cylinder lock used for locking compartments, boxes, storages etc. The cylinder lock comprises a cylinder body, an inner cylinder and a rotating part. The front part of the inner cylinder is provided with a rotary knob. The lock cylinder comprises a spring, which is arranged to push the rotary knob outwards. When the cylinder lock is locked, the rotary knob is in the inner position primarily inside the cylinder lock. When the cylinder lock is unlocked, the rotary knob is in the outer position as pushed by a spring, in which position it can be rotated to close and open a box, storage etc. without a key.
대표청구항▼
1. A cylinder lock comprising: a cylinder body, having a front end an open rear end, the rear end comprising an inner flange portion around an open portion of the open rear end;an inner cylinder, having a base and being placed inside the cylinder body and being provided with tumblers, which, in the
1. A cylinder lock comprising: a cylinder body, having a front end an open rear end, the rear end comprising an inner flange portion around an open portion of the open rear end;an inner cylinder, having a base and being placed inside the cylinder body and being provided with tumblers, which, in the blocking positions, block rotation of the inner cylinder and of the inner cylinder in relation to the outer cylinder, when the tumblers are moved into releasing positions;a rotating part on a side of the rear end of the cylinder body and in connection with the base of the inner cylinder;a rotating pin having an outer flange and a shaft, which is provided with a center hole and attachment surfaces on outer surface of the shaft, said rotating pin being placed through the open rear end, the outer flange being against the inner flange portion of the rear end, and onto which attachment surfaces the rotating part is attached, the center hole of the shaft of which rotating pin is provided with torsional surfaces; anda spring between the base of the inner cylinder and the rotating pin,wherein said base of the inner cylinder has a connecting shaft, which is provided with corresponding torsional surfaces, said inner cylinder is axially slidable in relation to the cylinder body, the corresponding torsional surfaces of the connecting shaft being against the torsional surfaces of the rotating pin regardless of the axial location of the inner cylinder, the front part of said inner cylinder is provided with a rotary knob, which has a front surface and a side surface with a projection, which is arranged to flexibly press against the side surface,wherein the inner surface of said cylinder body is provided with first and second circumferential grooves and a connecting groove connecting them in the direction of the shaft of the inner cylinder, the first circumferential groove being in the vicinity of the front end and the second circumferential groove being closer to the rear end than the first circumferential groove, the inner edge of the first circumferential groove being bevelled,wherein said cylinder lock is in the locked state, when the tumblers are in the blocking position and the projection of the rotary knob is on the second circumferential groove, in which locked state the front surface of the rotary knob is close to the front end of the cylinder body, andwherein said lock cylinder is in the unlocked state, when the tumblers are in the releasing positions and the inner cylinder is rotated into the unlocked position, wherein the projection of the rotary knob is at the site of the connecting groove, wherein the spring is free to push the rotary knob and the inner cylinder into the extended position in relation to the front end of the cylinder body, in which extended position the rotary knob and the inner cylinder are rotatable such that the projection of the rotary knob moves along the first circumferential groove. 2. A cylinder lock according to claim 1, wherein the part of the inner cylinder provided with a rotary knob is in diameter larger than the rest of the inner cylinder. 3. A cylinder lock according to claim 1, further comprising a tumbler bar between the cylinder body and the tumblers and the tumblers are disc tumblers, said cylinder body has a tumbler bar groove, and the inner cylinder has a tumbler bar notch, said inner cylinder is further provided with a spring recess and a second spring, which is attached into the spring recess, said second spring is arranged to push the tumbler bar towards the tumbler discs. 4. A cylinder lock according to claim 3, wherein the connecting shaft comprises a notch, the side surfaces of which form said corresponding torsional surfaces, and the center hole of the shaft of which rotating pin is provided with a bar transverse in relation to the axial direction, which forms said torsional surfaces. 5. A cylinder lock according to claim 3, wherein the outer surface of the connecting shaft comprises said corresponding torsional surfaces, and the surface of the center hole of the shaft of which rotating pin comprises said torsional surfaces. 6. A cylinder lock according to claim 5, wherein the center hole and the connecting shaft are rectangular in their basic shape. 7. A cylinder lock according to claim 5, wherein the surface of the center hole has at least one projection towards the center of the center hole, and the surface of the connecting shaft has at least one groove. 8. A cylinder lock according to claim 1, wherein the rotary knob has a key hole in the middle of a front surface of the key hole. 9. A cylinder lock according to claim 7, wherein the rotary knob is cup-like in shape, and its side surface is provided with at least one pin hole and the inner cylinder with at least one corresponding pin hole, and said cylinder lock comprises at least one pin, which is placed into the pin hole and into the corresponding pin hole, said pin forms said projection, said pin has a recess, in which is placed a flexible spring to push the pin outward from the side surface of the rotary knob. 10. A cylinder lock according to claim 1, wherein the inner cylinder comprises a ball recess, a ball and a third spring, said spring and ball are placed into the ball recess, and the cylinder body comprises an indication recess, said spring pushes the ball towards the cylinder body and, in the unlocked position, the ball recess and ball are at the site of the indication recess. 11. A cylinder lock according to claim 1, wherein the rotating part is a latch.
Johansson, Torsten; Magnusson, Claes; Anderson, Glenn; Scally, Charles R.; Wittig, J. Michael; Koveal, Stefan Matthew; Vickers, James H.; Rundle, Jr., Alfred George, Latch.
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